Disclosed in the present application is a composite insulator, comprising a core rod, a sheath covering the periphery of the core rod, and a metal fitting fixedly sleeved on an end of the core rod, wherein the end of the metal fitting close to the core rod is provided with a first cavity and a second cavity, which are connected to each other; the diameter of the second cavity is greater than that of the first cavity; the end of the core rod is fixed in the first cavity, and abuts against the bottom wall of the first cavity; the second cavity is integrally provided with a sealing ring, which abuts against the bottom wall of the second cavity; the end face of the metal fitting that is close to the sheath has a curved surface; the remaining part in the second cavity is filled with a sealing adhesive; and the sealing adhesive covers the curved surface and is connected to the sheath, such that the metal fitting is connected to the sheath in a sealed manner. For the composite insulator using the above end sealing structure, the sealing performance of the connection interface between the sheath and the metal fitting can be effectively improved. Further disclosed in the present application is a manufacturing method for a composite insulator.
H01B 17/50 - Isolateurs ou corps isolants caractérisés par la forme à surfaces traitées de manière appropriée pour préserver les propriétés isolantes, p. ex. pour la protection contre l'humidité, la souillure
H01B 17/38 - Accessoires, garniture, p. ex. capuchons, capotsÉléments de fixation prévus à cet effet
Disclosed in the present application is a hollow insulating tube, comprising, an inner axial layer, circumferential layer, and an outer axial layer that are arranged sequentially from inside to outside. Each of the inner axial layer and the outer axial layer comprises a plurality of axial fiber yarns. The circumferential layer comprises a plurality of circumferential fiber yarns. The inner axial layer, the circumferential layer and the outer axial layer are wetted with resin liquid and then cured to form the hollow insulating tube.
B32B 5/02 - Produits stratifiés caractérisés par l'hétérogénéité ou la structure physique d'une des couches caractérisés par les caractéristiques de structure d'une couche comprenant des fibres ou des filaments
B32B 5/12 - Produits stratifiés caractérisés par l'hétérogénéité ou la structure physique d'une des couches caractérisés par les caractéristiques de structure d'une couche comprenant des fibres ou des filaments caractérisés par la disposition relative des fibres ou filaments des couches adjacentes
B32B 5/26 - Produits stratifiés caractérisés par l'hétérogénéité ou la structure physique d'une des couches caractérisés par la présence de plusieurs couches qui comportent des fibres, filaments, grains ou poudre, ou qui sont sous forme de mousse ou essentiellement poreuses une des couches étant fibreuse ou filamenteuse un autre couche également étant fibreuse ou filamenteuse
H01B 17/58 - Tuyaux, manchons, perles isolantes ou bobines au travers desquels passe le conducteur
H01B 19/00 - Appareils ou procédés spécialement adaptés à la fabrication d'isolateurs ou de corps isolants
A composite pipeline (10), comprising a plurality of composite pipe bodies (100) and a connecting member (200) fixedly connecting every two adjacent composite pipe bodies (100). The connecting member (200) comprises two clamps (210) which are connected to each other; each clamp (210) comprises a hollow body (220) and connecting portions (230); the hollow body (220) comprises cylindrical inner cavities (221) and conical inner cavities (222); each composite pipe body comprises cylindrical sections (111, 121) and a conical section; each cylindrical inner cavity (221) is matched with and fixed to a cylindrical section (111, 121); each conical inner cavity (222) is matched with and fixed to a conical section; and the two clamps (210) cover the outer periphery of the joint of two adjacent composite pipe bodies (100), are butted and assembled, and then are fixedly connected by means of the connecting portions (230).
F16L 47/06 - Raccordements ou autres accessoires de raccordement spécialement adaptés pour être en matières plastiques ou pour être utilisés avec des tuyaux en matières plastiques comprenant un manchon ou une douille constitué par l'extrémité du tuyau ou formé dans celle-ci
F16L 47/08 - Raccordements ou autres accessoires de raccordement spécialement adaptés pour être en matières plastiques ou pour être utilisés avec des tuyaux en matières plastiques comprenant un manchon ou une douille constitué par l'extrémité du tuyau ou formé dans celle-ci avec des segments d'étanchéité disposés entre la surface extérieure de l'extrémité d'un tuyau et la surface intérieure du manchon ou de la douille, les joints d'étanchéité étant placés au préalable dans le manchon ou la douille
F16L 9/12 - Tuyaux rigides en plastique avec ou sans armature
The present application discloses a composite crossarm, configured to be fixed to a utility pole and hang a wire. The composite crossarm comprises a first crossarm, which comprises: a first core rod; an intermediate fitting, wherein the intermediate fitting is a cross-shaped fitting, and the intermediate fitting is connected to the middle of the first core rod for fixing the first crossarm to a utility pole; two wire-hanging fittings connected to two ends of the first core rod, respectively, and used for hanging wires; and a first insulating layer covering at least part of the peripheral face of the first core rod. The composite crossarm of the present application has a simple overall structure, reliable strength, easy installation, and a low manufacturing cost.
A high-voltage winding (130) includes a winding body (1310), a high-voltage coil (1320), and a high-voltage insulating layer (1330). A wire is wound on the winding body (1310) to form the high-voltage coil (1320), and the high-voltage insulating layer (1330) is wrapped around the high-voltage coil (1320) and the winding body (1310).
H01F 29/02 - Transformateurs ou inductances variables non couverts par le groupe avec prises sur les bobines ou les enroulementsTransformateurs ou inductances variables non couverts par le groupe avec possibilités de regroupement ou d'interconnexion des enroulements
H01F 27/32 - Isolation des bobines, des enroulements, ou de leurs éléments
H01F 41/076 - Formation de prises ou de bornes lors de l’enroulement, p. ex. par enveloppement ou par brasage du fil sur les broches, ou en formant directement des bornes à partir du fil
H01F 41/082 - Dispositifs de guidage ou de positionnement du matériau enroulé sur la forme d’enroulement
The present disclosure discloses a composite crossarm and a power transmission tower. The composite crossarm includes at least one insulator (1100) and at least one arcing device (1200) connected to the insulator (1100). Each of the at least one arcing device (1200) includes a high-voltage end arcing component (1210) and a low-voltage end arcing component (1220). The high-voltage end arcing component (1210) is connected to a high-voltage end of the insulator (1100), and the low-voltage end arcing component (1220) is connected to a low-voltage end of the insulator (1100). The at least one arcing device (1200) includes a first arcing device having an electrical clearance between the high-voltage end arcing component (1210) and the low-voltage end arcing component (1220) less than an electrical clearance between the high-voltage end and the low-voltage end of any one of the at least one insulator (1100). The composite crossarm disclosed by the present disclosure protects all insulators (1100) through the first arcing device to reduce the safety hazards.
Disclosed is a high-voltage winding (130), comprising a winding body (1310), a high-voltage coil (1320), a high-voltage insulating layer (1330), and an external insulating layer (1340). The winding body (1310) comprises a plurality of winding plates (1313, 2311, 1316); the plurality of winding plates (1313, 2311, 1316) are uniformly distributed in the circumferential direction of the winding body (1310); a wire is wound on the winding plates (1313, 2311, 1316) to form the high-voltage coil (1320); two ends of the wire form two external connections (D, X); the high-voltage insulating layer (1330) wraps the high-voltage coil (1320) and the winding body (1310); and the external insulating layer (1340) wraps the side walls of the external connections (D, X). Further disclosed is a dry-type transformer (10). The high-voltage winding (130) uses the external insulating layer (1340) to wrap the side walls of the external connections (D, X), thereby preventing the permeation of water vapor, ensuring the sealing effect, and effectively avoiding the problem of discharge of a wire outlet end.
H01F 27/32 - Isolation des bobines, des enroulements, ou de leurs éléments
H01F 27/30 - Fixation ou serrage de bobines, d'enroulements ou de parties de ceux-ci entre euxFixation ou montage des bobines ou enroulements sur le noyau, dans l'enveloppe ou sur un autre support
A winding body (1310) for a high-voltage winding (130) includes: a plurality of winding plates (1313), each of the winding plates (1313) being provided with a plurality of winding grooves (1314) to form a plurality of comb teeth on the winding plate (1313); and at least one auxiliary member (5316), the auxiliary member (5316) being ring-shaped, the winding plates (1313) being arranged along a circumferential direction of the auxiliary member (5316), and the auxiliary member (5316) being fixedly connected to the winding plates (1313). A high-voltage winding (130) includes: the foregoing winding body (1310); a high-voltage coil (1320); and a high-voltage insulating layer (1330). A dry-type transformer (10) includes a core (110), a low-voltage winding (120), and the foregoing high-voltage winding (130). The low-voltage winding (120) is sleeved outside the core (110), and the high-voltage winding (130) is sleeved outside the low-voltage winding (120).
H01F 27/30 - Fixation ou serrage de bobines, d'enroulements ou de parties de ceux-ci entre euxFixation ou montage des bobines ou enroulements sur le noyau, dans l'enveloppe ou sur un autre support
H01F 27/26 - Fixation des parties du noyau entre ellesFixation ou montage du noyau dans l'enveloppe ou sur un support
H01F 27/32 - Isolation des bobines, des enroulements, ou de leurs éléments
9.
PULTRUSION-WINDING FORMING PRODUCTION LINE AND PULTRUSION-WINDING FORMING METHOD
A pultrusion-winding forming production line is used for manufacturing a pultrusion-winding product and comprises, in sequence in a forming advancing direction of the pultrusion-winding product, a yarn distribution device for placing a yarn, a winding forming apparatus for winding the yarn, a forming device for curing the yarn soaked with resin glue into the pultrusion-winding product, a traction device for providing traction tension, and a cutting device for cutting the pultrusion-winding product. The winding forming apparatus comprises a rack, and a glue dipping device, a core mold fixing device and a winding device which are sequentially arranged in the forming advancing direction of the pultrusion-winding product; the rack comprises a first rack and a second rack; the core mold fixing device is arranged on the first rack; the winding device is vertically arranged on the second rack; and the first rack and the second rack are separated. The cutting device comprises a base, a follower mechanism, and a cutting mechanism; the follower mechanism comprises a bottom plate and a clamping mechanism; and the clamping mechanism is used for clamping the pultrusion-winding product to enable the follower mechanism to synchronously move along with the pultrusion-winding product. The present application further discloses a pultrusion-winding forming method.
B29C 70/32 - Façonnage par empilage, c.-à-d. application de fibres, de bandes ou de feuilles larges sur un moule, un gabarit ou un noyauFaçonnage par pistolage, c.-à-d. pulvérisation de fibres sur un moule, un gabarit ou un noyau sur un moule, un gabarit ou un noyau rotatifs
B29C 70/54 - Parties constitutives, détails ou accessoiresOpérations auxiliaires
B29C 70/00 - Façonnage de matières composites, c.-à-d. de matières plastiques comprenant des renforcements, des matières de remplissage ou des parties préformées, p. ex. des inserts
A pultrusion apparatus used for manufacturing a pultruded product. The pultrusion apparatus sequentially comprises, in a pultrusion advancing direction, a forming device (120) for curing yarn into a pultruded product, a traction device (130) for providing pultrusion traction, and a cutting device (140) for cutting the pultruded product, wherein the forming device, the traction device and the cutting device are horizontally arranged on a frame in the lengthwise direction of the frame (160); the cutting device comprises a following mechanism (141), which is arranged on the frame and can move in the lengthwise direction of the frame, and a cutting mechanism (142), which is mounted on the following mechanism and is used for cutting the pultruded product; the following mechanism comprises a base (1411) and a clamping mechanism (1412) arranged on the base; and the clamping mechanism is used for holding and clamping the pultruded product, such that the following mechanism synchronously moves with the pultruded product. In the pultrusion apparatus, the cutting device can synchronously move with the pultruded product, such that the cutting device and the pultruded product remain relatively still during cutting, thereby improving the quality of a cut surface and the operation efficiency, and reducing the waste of materials. Further provided is a pultrusion method.
B29C 70/52 - Pultrusion, c.-à-d. façonnage et compression par traction continue à travers une matrice
B29C 70/54 - Parties constitutives, détails ou accessoiresOpérations auxiliaires
B26D 1/60 - Coupe d'une pièce caractérisée par la nature ou par le mouvement de l'élément coupantAppareils ou machines à cet effetÉléments coupants à cet effet comportant un élément coupant qui se déplace avec la pièce et monté sur un chariot mobile
B26D 1/547 - Coupe d'une pièce caractérisée par la nature ou par le mouvement de l'élément coupantAppareils ou machines à cet effetÉléments coupants à cet effet comportant un élément qui ne suit pas le mouvement de la pièce ayant un élément coupant du genre fil
B26D 7/28 - Moyens pour exécuter d'autres opérations en combinaison avec la coupe pour compter le nombre de coupes ou mesurer les longueurs coupées
B26D 7/02 - Moyens pour maintenir ou mettre en position la pièce comportant des moyens de serrage
B26D 7/00 - Parties constitutives de l'appareillage de coupe, découpage, poinçonnage, perforation ou séparation autrement que par coupe
A pultrusion-winding forming method, which is used for manufacturing a pultrusion-winding product. The method comprises the following steps: S101, after several yarns are impregnated with a resin glue solution, pultruding and winding the several yarns outside a mandrel to form an axial layer and a wound layer to obtain a prefabricated member of a pultrusion-winding product; S102, curing the prefabricated member at high temperature to form the pultrusion-winding product, and pulling the pultrusion-winding product to move in the forming advance direction of the pultrusion-winding product, thereby continuously forming the pultrusion-winding product; and S103, detecting a position signal of the pultrusion-winding product, and cutting the pultrusion-winding product according to a preset length. The pultrusion-winding product prepared by the pultrusion-winding forming method of the present application has both good circumferential strength and axial strength, can bear a circumferential acting force and an axial acting force simultaneously, and has excellent mechanical properties. In addition, the pultrusion-winding forming method involves a simple process and has high production efficiency.
B29C 70/30 - Façonnage par empilage, c.-à-d. application de fibres, de bandes ou de feuilles larges sur un moule, un gabarit ou un noyauFaçonnage par pistolage, c.-à-d. pulvérisation de fibres sur un moule, un gabarit ou un noyau
B29C 70/54 - Parties constitutives, détails ou accessoiresOpérations auxiliaires
12.
HOLLOW INSULATING TUBE, PREPARATION METHOD FOR HOLLOW INSULATING TUBE, AND COMPOSITE INSULATOR
Disclosed in the present invention is a hollow insulating tube, comprising, sequentially arranged from inside to outside, an inner axial layer, an annular layer, and an outer axial layer. The inner axial layer and the outer axial layer each comprise a plurality of axial fiber yarns. The annular layer comprises a plurality of annular fiber yarns. The inner axial layer, the annular layer and the outer axial layer are dipped with a resin adhesive solution, which is then cured to form the hollow insulating tube. For the hollow insulating tube, the structural design of the annular layer, the inner axial layer and the outer axial layer significantly improves the circumferential strength and the axial strength of the hollow insulating tube. The main body structure of the hollow insulating tube is prepared by, after dipping yarn in an adhesive, directly carrying out heat transfer, curing and pultrusion on the yarn by means of a curing mold, so that the curing forming efficiency is greatly improved, the product processing period is shortened, and the product production efficiency is improved. The application further discloses a preparation method for the hollow insulating tube, and a composite insulator.
The present disclosure discloses a composite crossarm and a power transmission tower. The composite crossarm includes two post insulators and two suspension insulators. Of the two post insulators and the two suspension insulators, one ends are configured to be connected to a tower body of a power transmission tower, and the other ends are connected together to form an end portion of the composite crossarm to hang a power transmission line. The two suspension insulators are located on same sides of the two post insulators and respectively arranged adjacent to the two post insulators. At the same time, an angle between the two post insulators ranges from 20° to 50°, and an angle between the post insulator and the suspension insulator adjacent thereto ranges from 15° to 45°. The composite crossarm according to the present disclosure is highly stable and convenient to for mounting grading ring.
A high-voltage winding (130) and a preparation method therefor. The preparation method for the high-voltage winding (130) comprises the following steps: circumferentially winding a wire along the outer peripheral surface of a wire winding body (1310) to form a high voltage coil (1320), and forming taps (2, 3, 4, 5, 6, 7) in the wire winding process; placing the taps (2, 3, 4, 5, 6, 7) in a protective cavity of a tooling connecting member (101), and connecting and fixing the taps (2, 3, 4, 5, 6, 7) to the tooling connecting member (101) to obtain a body to be injected; placing said body into a mold (102) of an injection machine, such that the outer peripheral surface of the high voltage coil (1320) abuts against at least one support auxiliary member (1340) provided on the inner wall of the mold (102); perform injection on the periphery of said body to form high-temperature vulcanized silicone rubber, so as to obtain a high-voltage winding preform provided with a groove (1341) on the surface; filling the groove (1341) of the high-voltage winding preform, so that the high-temperature vulcanized silicone rubber is continuous at the groove (1341); and removing the tooling connecting member (101) to obtain a high-voltage winding (130) of which the taps (2, 3, 4, 5, 6, 7) are exposed to the high-temperature vulcanized silicone rubber. By providing the support auxiliary member (1340), the wire displacement is effectively prevented.
H01F 27/34 - Moyens particuliers pour éviter ou réduire les effets électriques ou magnétiques indésirables, p. ex. pertes à vide, courants réactifs, harmoniques, oscillations, champs de fuite
H01B 3/28 - Isolateurs ou corps isolants caractérisés par le matériau isolantEmploi de matériaux spécifiés pour leurs propriétés isolantes ou diélectriques composés principalement de substances organiques caoutchoucs naturels ou synthétiques
The present application relates to a composite cross arm and a power transmission tower. The composite cross arm comprises at least one insulator (1100); and at least one arcing apparatus (1200), which is connected to the insulator (1100), wherein each arcing apparatus (1200) comprises a high-voltage-end arcing assembly (1210) and a low-voltage-end arcing assembly (1220), the high-voltage-end arcing assembly (1210) being connected to a high-voltage end of the insulator (1100), and the low-voltage-end arcing assembly (1220) is connected to a low-voltage end of the insulator (1100); and in the at least one arcing apparatus (1200), there is a first arcing apparatus with an electrical gap between the high-voltage-end arcing assembly (1210) and the low-voltage-end arcing assembly (1220) that is less than an electrical gap between the high-voltage end and the low-voltage end of any one of the at least one insulator (1100). By means of the composite cross arm provided in the present application, all insulators (1100) are protected by means of a first arcing apparatus, thereby reducing potential safety hazards.
E04H 12/00 - ToursMâts ou pylônesCheminées d'usineChâteaux d'eauProcédés d'édification de ces structures
H01B 17/38 - Accessoires, garniture, p. ex. capuchons, capotsÉléments de fixation prévus à cet effet
H01B 17/46 - Moyens pour ménager un trajet de décharge en arc extérieur
H01B 17/48 - Moyens pour obtenir une distribution améliorée de la tensionProtection contre la décharge en arc sur chaînes ou autres isolateurs disposés en série
H02G 7/20 - Aménagements d'écartement ou dispositions de lignes ou de câbles sur les poteaux ou les pylônes
H02G 7/05 - Dispositifs ou dispositions pour suspendre les lignes ou câbles électriques
H02H 9/06 - Circuits de protection de sécurité pour limiter l'excès de courant ou de tension sans déconnexion sensibles à un excès de tension utilisant des éclateurs à étincelles
16.
INSULATING CROSS ARM AND PREPARATION METHOD THEREOF, AND TRANSMISSION POLE
The present disclosure discloses an insulating cross arm and a preparation method thereof, and a transmission pole. The insulating cross arm includes: an integrally cast connecting fitting including an intermediate connecting part and two sleeves respectively disposed at opposite ends of the intermediate connecting part; a core rod including a first core rod and a second core rod, an end of the first core rod and an end of the second core rod being respectively fixed in the two sleeves; two wire attaching fittings respectively fixed to another end of the first core rod and another end of the second core rod; and an insulating layer coated on and fixed to an outer peripheral surface of the core rod. The insulating layer is located in other regions, and the insulating layer is connected with both the connecting fitting and the wire attaching fittings in a sealing way.
A wall bushing, comprising a head assembly, a conductive rod, and a connecting terminal sealing and covering the head assembly and the conductive rod. The connecting terminal and the conductive rod are electrically connected. The head assembly includes a transition tank and a transition plate that are connected to each other. An upper end of the transition tank is provided with a first through hole, and a lower end of the transition tank is hole-through. The transition plate is provided with a second through hole. The conductive rod extends through the first through hole and the second through hole. The transition tank and the transition plate are fixedly connected such that an accommodation cavity is formed around the conductive rod and in the transition tank.
The present disclosure discloses a composite crossarm and a power transmission tower. The composite crossarm includes a post insulator and three suspension insulators. The post insulator and the suspension insulators each has an end configured to be connected to a tower body of the power transmission tower, and another end connected together to form an end of the composite crossarm that is configured to attach a transmission line. The three suspension insulators are arranged at intervals around the post insulator. Axes of two suspension insulators and an axis of the post insulator are in the same plane. The two suspension insulators whose axes are in the same plane as the axis of the post insulator are defined as first suspension insulators, the remaining suspension insulator is defined as a second suspension insulator. The two first suspension insulators form an angle ranged from 45° to 90°.
The present application relates to a high-voltage winding (130), comprising a winding body (1310), a high-voltage coil (1320) and a high-voltage insulating layer (1330). A wire is wound on the winding body (1310) to form the high-voltage coil (1320), and the high-voltage insulating layer (1330) wraps the high-voltage coil (1320) and the winding body (1310). The present application further relates to a method for preparing the high-voltage winding.
H01F 27/34 - Moyens particuliers pour éviter ou réduire les effets électriques ou magnétiques indésirables, p. ex. pertes à vide, courants réactifs, harmoniques, oscillations, champs de fuite
H01F 27/30 - Fixation ou serrage de bobines, d'enroulements ou de parties de ceux-ci entre euxFixation ou montage des bobines ou enroulements sur le noyau, dans l'enveloppe ou sur un autre support
H01F 41/076 - Formation de prises ou de bornes lors de l’enroulement, p. ex. par enveloppement ou par brasage du fil sur les broches, ou en formant directement des bornes à partir du fil
20.
WINDING BODY, HIGH-VOLTAGE WINDING AND DRY-TYPE TRANSFORMER
The present application relates to a winding body (1310), which is used for a high-voltage winding (130). The winding body (1310) comprises: several winding plates (1313), each winding plate (1313) being provided with several winding grooves (1314) so as to form several comb teeth on the winding plates (1313); and at least one auxiliary member (5316), wherein the auxiliary member (5316) is annular, the winding plates (1313) are arranged along the circumferential direction of the auxiliary member (5316), and the auxiliary member (5316) is fixedly connected to the winding plates (1313). The present application further relates to the high-voltage winding (130). The high-voltage winding (130) comprises: the winding body (1310); a high-voltage coil (1320); and a high-voltage insulating layer (1330). The present application further relates to a dry-type transformer (10). The dry-type transformer (10) comprises an iron core (110), a low-voltage winding (120) and the high-voltage winding (130), wherein the low-voltage winding (120) is sleeved outside the iron core (110), and the high-voltage winding (130) is sleeved outside the low-voltage winding (120).
H01F 27/30 - Fixation ou serrage de bobines, d'enroulements ou de parties de ceux-ci entre euxFixation ou montage des bobines ou enroulements sur le noyau, dans l'enveloppe ou sur un autre support
The present disclosure discloses a substation frame comprising: a supporting assembly comprising at least two supporting posts arranged at intervals, the at least two supporting posts comprising one side supporting post at each end; a beam assembly comprising a beam provided between every two adjacent supporting posts; and a side wire attaching assembly provided on at least one side supporting post and positioned on a side of the side supporting post facing away from the beam.
The present disclosure specifically discloses a substation frame, comprising: at least two supporting assemblies arranged at intervals along a first direction, at least one of the supporting assemblies comprising a first supporting part and a second supporting part that are connected to each other; and a beam assembly provided between two adjacent supporting assemblies. The first supporting part is located between the beam assembly and the second supporting part. The first supporting part is made of composite insulating material, and the second supporting part is made of metal material.
Disclosed in the present application are a composite cross arm and a power transmission tower. The composite cross arm comprises two post insulators and two cable-stayed insulators, wherein one end of each of the two post insulators and one end of each of the two cable-stayed insulators are all used for being connected to the tower body of the power transmission tower, and the other ends thereof are connected together to form an end part of the composite cross arm, which end part is used for hanging a power transmission line; the two cable-stayed insulators are located on the same sides of the two post insulators and are respectively arranged to be adjacent to the two post insulators; and an included angle between the two post insulators ranges from 20° to 50°, and included angles between the post insulators and cable-stayed insulators adjacent thereto range from 15° to 45°. The composite cross arm provided in the present application has a strong stability, and can facilitate mounting of first grading rings on the post insulators and mounting of second grading rings on the cable-stayed insulators.
Disclosed are a composite cross arm and a power transmission tower. The composite cross arm comprises a post insulator and three cable-stayed insulators, wherein one end of the post insulator and one end of each of the cable-stayed insulators are all connected to the tower body of the power transmission tower, and the other ends thereof are connected together to form an end part of the composite cross arm, which end part is used for hanging a power transmission line; and the three cable-stayed insulators are arranged at intervals around the post insulator, the axes of two cable-stayed insulators and the axis of the post insulator are positioned on the same plane, the two cable-stayed insulators with the axes thereof positioned on the same plane as the axis of the post insulator are both defined as first cable-stayed insulators, and the remaining cable-stayed insulator is defined as a second cable-stayed insulator, the angle between the two first cable-stayed insulators ranges from 45° to 90°, and the angle between the second cable-stayed insulator and the post insulator ranges from 25° to 45°. The composite cross arm provided in the present application has strong stability.
Disclosed is a transformer bushing, comprising a head assembly, a central guide pipe, a composite outer sleeve and a tail assembly; the central guide pipe sequentially penetrates through the head assembly, the composite outer sleeve and the tail assembly, the central guide pipe comprises a current-carrying rod and a winding pipe, the current-carrying rod comprising a first guide rod and a second guide rod, the first guide rod being fixedly connected to the second guide rod, and the winding pipe being sleeved outside the current-carrying rod, a space between the winding pipe and the current-carrying rod being not less than 1.5 mm, and the length of the winding pipe being less than that of the current-carrying rod. The transformer bushing of the present invention has a simple structure, can ensure reliable rolling of a capacitor core and reliable current carrying of a conductive rod, and ensure stable connection and reliable cooperation between components, and can achieve exchange of transformer bushing products of the same voltage level, thereby achieving universality.
Disclosed is a wall bushing, comprising a head portion assembly, a conductive rod, and a connection terminal sealing and covering the head portion assembly and the conductive rod. The connection terminal and the conductive rod are electrically connected. The head portion assembly comprises a transition container and a transition plate connected to each other. The transition container is provided with a first through-hole at the upper end thereof, and is open at the lower end thereof. The transition plate is provided with a second through-hole. The conductive rod passes through the first through-hole and the second through-hole. The transition container and the transition plate are fixedly connected such that an accommodation chamber is formed around the conductive rod in the transition container. The wall bushing has a simple structure and does not require a corrugated pipe, thereby eliminating the need to use dynamic axial sealing equipment, and greatly improving sealing reliability while reducing production costs.
Disclosed are an insulated cross arm, a manufacturing method therefor, and a power transmission mast. The cross arm comprises: an integrated-type cast connection fitting, the connection fitting comprising an intermediate connection portion and two sleeves respectively arranged at two ends of the intermediate connection portion; core rods, which comprise a first core rod and a second core rod, one end of the first core rod and one end of the second core rod being respectively fixedly connected within the two sleeves; two line-hanging fittings, and the two line-hanging fittings being respectively fixedly connected to the other end of the first core rod and the other end of the second core rod; and an insulation layer, the insulation layer being coveringly fixed at peripheral faces of the core rods, the insulation layer being located at regions excluding at the connection fitting or at the line-hanging fittings, and sealing connections being established between the insulation layer and the connection fitting and between the insulation layer and the line-hanging fittings. The insulated cross arm of the present invention has a simple structure, high mechanical strength, high production efficiency, is convenient to install, is suitable for many types of masts, and possesses a feature of general usability.
Disclosed in the present application is a power transformation framework. The power transformation framework comprises: a supporting assembly, which comprises at least two supporting columns arranged at intervals, the at least two supporting columns comprising two side supporting columns located on two sides; a cross beam assembly which comprises a cross beam erected between every two adjacent supporting columns; and a side wire hanging assembly which is arranged on at least one of the side supporting columns and located on the side of the side supporting column away from the cross beam. The wire hanging assembly is arranged on the side of the side supporting column away from the cross beam, and a phase conductor can be additionally arranged on the wire hanging assembly, such that the phase number of conductor jointing is expanded, the occupied area is reduced, the use of the cross beam and the supporting columns is reduced, the use amount of steel and basic materials is decreased, and the construction cost is reduced.
A substation framework (100), comprising: support assemblies (110), at least two support assemblies being arranged at intervals along a first direction, and at least one support assembly (110) comprising a first support part (111) and a second support part (112) which are connected to each other; and a cross beam assembly (120), mounted between two adjacent support assemblies (110). The first support part (111) is located between the cross beam assembly (120) and the second support part (112), the first support part (111) is made of a composite insulating material, and the second support part (112) is made of a metal material. Because the first support part (111) connected to the cross beam assembly (120) is made of the composite insulating material, the first support part (111) has excellent electrical insulating performance, so that the electrical safety distance between a wire and the support assembly can be reduced, thereby effectively reducing the width of the substation framework and the expropriation cost; moreover, because the second support part (112) is made of the metal material, the effect of reducing the cost can be achieved. In addition, the support assembly (110) having a composite structure is light in weight and not prone to rust and crack, so that the problem that it is difficult to transport, mount, and maintain is correspondingly solved, and the transportation and mounting costs are reduced.
Specifically disclosed in the present application are a post insulator and a manufacturing method therefor. The post insulator comprises a post insulator body and an insulating sheath; the post insulator body comprises a first end used for connecting an electricity pylon and a free end opposite to the first end; and the free end is wrapped by the insulating sheath. By wrapping the free end by the insulating sheath, the use of an armour clamp structure for the free end can be avoided, thereby avoiding the possible occurrence of a floating potential and partial discharge of a metal component on the free end in high-voltage field strength, and preventing the rapid aging and even insulation failure of the product. In addition, by wrapping the free end by the insulating sheath, the occurrence of friction with wires and damage to the wires can be avoided. Also disclosed in the present application is a transmission tower.
17 - Produits en caoutchouc ou en matières plastiques; matières à calfeutrer et à isoler
19 - Matériaux de construction non métalliques
Produits et services
Flanges of metal [collars]; pipework of metal; signboards of
metal; valves of metal, other than parts of machines; gold
solder; props of metal; wire of common metal; sealing caps
of metal; rods of metal for welding; rails of metal; metal
collets; bins of metal. Rubber, raw or semi-worked; synthetic rubber; rubber sleeves
for protecting parts of machines; washers of rubber or
vulcanized fiber; stuffing rings; gaskets; joint packings
for pipes; pipe gaskets; joint packings; sealant compounds
for joints; pipe jackets, not of metal; pipe muffs, not of
metal; seals; water-tight rings; rings of rubber; acrylic
resins [semi-finished products]; synthetic resins
[semi-finished products]; flexible tubes, not of metal;
thermal insulation boards and pipes made of glass fibers;
insulating materials; insulators for electric mains;
insulators; dielectrics [insulators]; insulators for cables;
insulators for railway tracks; fiberglass for insulation;
padding materials of rubber or plastics; stuffing of rubber
or plastic; refractory fibers. Resin composite plywood; works of stonemasonry; plaster;
cement; concrete poles; tiles, not of metal, for building;
waterproof roofing membranes in roll form; poles, not of
metal, for electric power lines; building materials, not of
metal; props, not of metal; flashing, not of metal, for
building; telegraph posts, not of metal; duckboards, not of
metal; fiberglass building components; buildings, not of
metal; safety glass; coatings [building materials]; binding
material for road repair.
Disclosed in the present invention is a post insulator, comprising a hollow insulating tube, a shed positioned on a periphery of the hollow insulating tube, and an upper flange and a lower flange provided at two ends of the hollow insulating tube, wherein gas is sealed inside of the hollow insulating tube, and the absolute pressure of the gas is 0.1-0.15 MPa. Further disclosed is an insulated support post formed by the end-to-end connection of the post insulators. The post insulator and the insulated support post of the present invention solve an interface problem present in internal insulating solid material filling, and also solve a gas leaking problem that occurs when using high-pressure gas filling, such that the post insulator does not need to be detected and maintained. At the same time, the margin of the micro-water control range is improved, and micro-water control and production difficulty is reduced.
A composite crossarm fixed on a pole body of a transmission pole is disclosed. The composite crossarm includes: a core rod, an insulating layer and a load-bearing member. The insulating layer and the load-bearing member cover and are fixed to an outer peripheral surface of the core rod. The load-bearing member is positioned in a middle region of the core rod connected to the pole body, and the insulating layer is positioned in regions of the core rod other than the middle region. A transmission pole using the above composite crossarm is also disclosed. In the above manner, the load-bearing member is arranged at a position where the core rod is connected to the pole body in advance. On one hand, the core rod is able to be connected to the pole body without providing with a hole. On the other hand, the load caused by the fixed connection is applied on the load-bearing member directly, with no damage to the insulating layer. Both the load-bearing member and the insulating layer cover and are fixed on the outer peripheral surface of the core rod, so that the core rod is protected from external corrosion, to ensure the mechanical properties of the composite crossarm.
Provided is a flange (100) connected to an end of an insulating tube (10), the flange includes a flange plate (110) abutting the end of the insulating tube, a groove (111) recessed toward inside of the insulating tube is disposed on the flange plate, the groove is connected to the insulating tube, an inflation valve (120) is disposed within the groove, the groove is filled with sealing material (130) which covers the inflation valve. Provided are also insulator and insulated support post using the flange. The flange, the insulator and insulated support post help to protect the inflation valve from external force and the groove is filled with the sealing material to ensure the sealing performance of the flange.
An overhead power distribution line (10) comprises a tension resistant pole (101), two composite crossbeams (102) and tension resistant fixing members (103). A middle portion of the composite crossbeam (102) is horizontally secured on the tension resistant pole (101), and end portions of the composite crossbeam (102) are connected to the tension resistant fixing members (103). The tension resistant fixing members (103) enable the two composite crossbeams (102) to integrally connect and are for fixing conducting lines. With the above configuration, two composite crossbeams (102) are secured on the same horizontal plane of the tension resistant pole (101), thus satisfying vertical tension of a tension resistant requirement. Further, by using composited crossbeam bodies (102), a dry arc distance is significantly increased, and electrical lightning resistance performance is enhanced, preventing incidents such as line disconnection and flashover caused by lightning strike. The composite crossbeams (102) are maintenance-free and do not require periodical inspection and maintenance, significantly reducing labor costs. The use of crossbeams (102) can further eliminate the use of tension insulators and simplify the structure of lines.
Disclosed is a transformer bushing (1000), comprising: an insulating tube (1010) configured to be of a hollow structure in an axial direction; a capacitor core (1020), comprising a current-carrying rod (1021) running through the insulating tube, and a plurality of insulating layers and a plurality of capacitive screens located in the insulating tube and sequentially wound around an outer side of the current-carrying rod, wherein an end, extending out of the insulating tube, of the current-carrying rod is fixedly connected to a first wiring terminal (1040) and is electrically connected to the first wiring terminal; and an end screen joint (1030) that is electrically connected to an end screen in the capacitor core, and is used for grounding the end screen when the transformer bushing runs. The transformer bushing has a simple structure, such that costs can be saved, the number of production procedures are reduced, and the production efficiency is improved.
The present invention relates to an auxiliary skirt. The auxiliary skirt is mounted on an insulator, the insulator comprising several main skirts. The auxiliary skirt comprises: an insulating support layer, covering the surface of the main skirts and connected as a single body with the main skirts by an adhesive; and an auxiliary skirt, covering the exterior of the insulating support layer and connected as a single body with the main skirts and the insulating support layer by the adhesive. The auxiliary skirt and the main skirts of the insulator are provided with the insulating support layer, thus ensuring that a stable adhesive injection gap is provided between the main skirts and the auxiliary skirt, allowing a sufficient amount of the adhesive to be filled, and ensuring that bonding is firm. Also related is an auxiliary skirt mounting method, which employs a vacuum adhesive injection process, allows air in an accommodating cavity to be completely expelled, allows the adhesive to completely fill bonding surfaces between the auxiliary skirt and the main skirts, and is highly efficient and suitable for batched mounting.
Disclosed is a power transmission tower. The power transmission tower comprises a tower body and a conductive device, wherein the conductive device is installed on the tower body and the conductive device comprises a conductor for electric conduction, two ends of the conductor are respectively used for connection with power transmission lines, two ends of the conductive device extend out of the tower body in the transmission direction of the power transmission lines, and the conductive device is insulated from the tower body. The power transmission tower in the present invention is connected to the power transmission lines by means of the conductive device, the structure of the power transmission tower is simplified, and the width of a power transmission line corridor is reduced.
A flange (11), a sealing method therefor and an insulator using the flange (11), relating to the technical field of flanges. The flange (11) comprises: a groove (15) formed at one side of the flange (11), the bottom of the groove (15) being provided with a first through hole (16) for inflating; an inflating valve (13) provided in the groove (15); and a sealing member (14) that wraps an end face, facing an opening of the groove (15), of the inflating valve (13) and is filled between the inflating valve (13) and the inner wall of the groove (15). The sealing member (14) directly wraps the end face, facing the opening of the groove (15), of the inflating valve (13), and is filled between the inflating valve (13) and the inner wall of the groove (15), thereby filling a slit between the inflating valve (13) and the flange (11), preventing penetration of steam outside the flange (11) into the flange (11) through the slit between the inflating valve (13) and the sealing member (14), blocking a steam penetration path between the inflating valve (13) and the sealing member (14), improving airtightness of an inflating valve (13) area in the flange (11), improving the service life and use reliability of a product, and ensuring insulating performance and electrical performance of the product.
A power transmission line pipeline and a gas insulating line, the power transmission line pipeline comprising: three sub-pipelines that are sequentially insulatedly connected, each sub-pipeline comprising a metal case (140); and both ends of the power transmission line pipeline are grounded. In addition, the gas insulating line comprises several connected pipeline units (100), each pipeline unit (100) comprising an A-phase pipeline (110), a B-phase pipeline (120), and a C-phase pipeline (130), wherein three sets of intersectingly interconnected electrical circuits comprising A-phase sub-pipelines (112, 114, 116), B-phase sub-pipelines (122, 124, 126), and C-phase sub-pipelines (132, 134, 136) are formed between the three phases of pipelines. The gas insulating line interconnects three metal cases (140) having different phases and forms an electrical circuit with the ground, which may substantially offset induced electromotive force generated by the entire electrical circuit, reduce to a great extent induced current generated in the electrical circuit, reduce to a great extent heat generation by the metal cases, lower transformation loss, improve the safe operation of equipment, and improve the economic efficiency of a transformation system.
H02G 9/06 - Installations de lignes ou de câbles électriques dans ou sur la terre ou sur l'eau dans des tubes ou conduits souterrainsLeurs tubes ou conduits
Disclosed in the present invention are a cross arm assembly and a transmission pole. The cross arm assembly comprises a cross arm and a transition plate; the cross arm comprises a mandrel, a sleeve, insulating layers, and wire fixing terminals; the sleeve is fixedly connected to the middle of the mandrel; the mandrel is coated with the insulating layers; the left and right sides of the sleeve are both provided with the insulating layers; both ends of the mandrel are provided with the wire fixing terminals, respectively; the outer wall of the sleeve is provided with connecting lugs; the cross arm is fixedly connected to the transition plate by means of the connecting lugs. The cross arm assembly of the present invention is simple in structure and easy to install and maintain, and is applicable to a variety of pole bodies.
Disclosed is an insulating sleeve pipe, comprising: an insulator, the insulator comprising a skirt part at the middle and a lower flange provided at the lower end of the skirt part; a head, comprising an oil reservoir connected to the upper end of the insulator and a wiring terminal connected to the oil reservoir; and an in-oil insulating pipe, connected to the lower flange. The in-oil insulating pipe comprises a transformer mounting pipe of the upper part and an insulating pipe of the lower part. The transformer mounting pipe comprises an inner pipe and an electrically-conductive layer provided on the outer surface of the inner pipe. The electrically-conductive layer is grounded. The electrically-conductive layer at least circumferentially wraps 20 mm in height of the lower end of the outer surface of the inner pipe. The insulating sleeve pipe saves material on the electrically-conductive layer, thus effectively reducing production costs.
Provided is a flange (100) connected to an end of an insulating tube (10), the flange includes a flange plate (110) abutting the end of the insulating tube, a groove (111) recessed toward inside of the insulating tube is disposed on the flange plate, the groove is connected to the insulating tube, an inflation valve (120) is disposed within the groove, the groove is filled with sealing material (130) which covers the inflation valve. Provided are also insulator and Insulating pillar using the flange. The flange, the insulator and insulating pillar help to protect the inflation valve from external force and the groove is filled with the sealing material to ensure the sealing performance of the flange.
Disclosed in the present invention is a support post insulator, comprising a hollow insulating tube, an umbrella skirt that is located at the periphery of the hollow insulating tube, and an upper flange and a lower flange that are disposed on two ends of the hollow insulating tube, wherein a gas is sealed inside of the hollow insulating tube, and the absolute pressure of the gas is 0.1-0.15 Mpa. Further disclosed is an insulating support post formed by the end-to-end connection of the support post insulators. The support post insulator and the insulating support post of the present invention solve an interface problem present in internal insulating solid material filling, and also solve a gas leaking problem that occurs when using high-pressure gas filling, such that the support post insulator does not need to be detected and maintained. At the same time, the margin of the micro-water control range is improved, and micro-water control and production difficulty is reduced.
Disclosed is a composite insulator, comprising an insulating tube and an umbrella skirt coating the outside of said insulating tube; the insulating tube comprises a first winding layer, a first semiconductor material layer, and a second winding layer; said first winding layer is away from the umbrella skirt; the first semiconductor material layer is located between the first winding layer and the second winding layer and is located on part of the cross-section of the outer side of the first winding layer. Also disclosed are a method for manufacturing a composite insulator and a composite bushing. In such a manner, the semiconductor material layer is arranged inside the insulating pipe, thus improving the interference of an electric field on a composite insulator, improving the local electric field distribution, alleviating electric field concentration, preventing the surface of the umbrella skirt from discharging and being galvanically corroded, and preventing reduction in the service life of an insulating tube after long-term use; the composite insulator may be applied to post insulators, composite bushings, or other high-voltage electrical equipment.
41 - Éducation, divertissements, activités sportives et culturelles
Produits et services
Educational services; arranging and conducting of
congresses; arranging and conducting of conferences;
videotaping; arranging and conducting of colloquiums;
publication of books; arranging and conducting of
symposiums; photography; organization of exhibitions for
cultural or educational purposes; publication of texts,
other than publicity texts.
An overhead power distribution line (10) comprises a tension resistant pole (101), two composite crossbeams (102) and tension resistant fixing members (103). A middle portion of the composite crossbeam (102) is horizontally secured on the tension resistant pole (101), and end portions of the composite crossbeam (102) are connected to the tension resistant fixing members (103). The tension resistant fixing members (103) enable the two composite crossbeams (102) to integrally connect and are for fixing conducting lines. With the above configuration, two composite crossbeams (102) are secured on the same horizontal plane of the tension resistant pole (101), thus satisfying vertical tension of a tension resistant requirement. Further, by using composited crossbeam bodies (102), a dry arc distance is significantly increased, and electrical lightning resistance performance is enhanced, preventing incidents such as line disconnection and flashover caused by lightning strike. The composite crossbeams (102) are maintenance-free and do not require periodical inspection and maintenance, significantly reducing labor costs. The use of crossbeams (102) can further eliminate the use of tension insulators and simplify the structure of lines.
A shed cover (100). The shed cover covers the exterior of an insulator comprising at least one shed (10). The shed cover (100) comprises an accommodating cavity (150), and the accommodating cavity (150) accommodates the upper surface and the lower surface of the shed (10). The shed cover (100) is provided with a mounting hole (170) for an insulator to pass therethrough, and an opening (160) corresponding to the mounting hole (170). The mounting hole (170) communicates with the outer edge of the shed cover (100) via the opening (160), and the mounting hole (170) is in communication with the accommodating cavity (150). Two ends of the opening (160) are respectively provided with a first connecting portion (130) and a second connecting portion (140) configured to engage with each other. When the first connecting portion (130) is connected to the second connecting portion (140), the shed cover (100) is closed in a circumferential direction. The shed cover (100) can accommodate the entirety of a single shed (10) and can be assembled and mounted on the shed (10) without additional connecting parts. The invention is convenient, efficient, and effectively prevents the effects of a flashover caused by air pollution or rainwater.
Disclosed is a composite cross-arm fixed to a mast body of a transmission mast. The composite cross-arm comprises a core rod, an insulation layer and a force-bearing member. The insulation layer and the force-bearing member cover and are fixed to an outer circumferential surface of the core rod. The force-bearing member is arranged at a middle portion of the core rod where the core rod is connected to the mast body. The insulation layer is arranged at other regions other than the middle portion. Also disclosed is a transmission mast adopting the composite cross-arm. By pre-arranging a force-bearing member at a region of a core rod where the core rod is connected to a mast body, a puncturing operation does not need to be performed on the core rod to realize connection of the core rod with the mast body, and no damage is caused to the insulation layer because a load of secure connection is directly applied to the force-bearing member. Since the force-bearing member and the insulation layer cover and are fixed to the outer circumferential surface of the core rod, the core rod can be protected from corrosion caused by an external environment, thereby ensuring mechanical performance of the composite cross-arm.
An insulator (1000) comprises an insulating tube (1100) and flanges (100) connected to two ends of the insulating tube. The insulating tube is filled therein with an insulating gas and provided with a drying device. Also disclosed is a composite cross arm comprising the insulator (1000). Compared with traditional insulation solutions, the insulator adopting a gas-filled type internal insulation solution and provided with a drying device has a lighter weight, reduced costs and a longer service life.
Disclosed are an umbrella sleeve and an electrical apparatus using same. The umbrella sleeve (100) is arranged on the electrical apparatus, and the electrical apparatus comprises at least two parallel insulators (300); and at least two mounting holes (103) capable of enabling the at least two insulators to pass through and openings (104) corresponding to the mounting holes are arranged on the umbrella sleeve, and the openings are in communication with the mounting holes and the edge of the umbrella sleeve. The electrical apparatus can also comprise a housing (200), and the at least two insulators are connected to the housing by housing connection parts (400); and the umbrella sleeve covers at least the housing connection parts. The umbrella sleeve has a significant effect of increasing creepage distance, and can effectively prevent rain, snow and dirt, and has a better anti-pollution flashover effect; the umbrella sleeve can also effectively prevent rain, snow and dirt from entering the junction regions between the connection parts and the insulators and the housing, and thereby can improve the safety of the electrical apparatus; and the diameter of the umbrella sleeve is larger, and can break a conductive passage forming a rain curtain, at least to some extent avoiding or even eliminating a rain flash accident.
Disclosed are an insulated pipe and an insulated bushing. The insulated bushing (1000) includes: an insulator (110) including an intermediate shed member (112), and a lower flange (114) arranged on a lower end of the shed member; a head member (120) connected to an upper end of the insulator, wherein the head member includes an oil conservator (121) connected to the upper end of the insulator and a connecting terminal (122) connected to the oil conservator; and an insulated pipe (100) connected to the lower flange, wherein the insulated pipe includes a upper transformer pipe (101) and a lower oil-immersed pipe (102), and the transformer pipe includes an inner pipe (103), and a conductive layer arranged outside the inner pipe and configured to be grounded. The insulated pipe and the insulated bushing solve the problems of connection and sealing, and save material cost greatly.
41 - Éducation, divertissements, activités sportives et culturelles
Produits et services
(1) Training services relating to power system and electrical engineering; arranging and conducting of congresses, conferences, colloquiums and symposiums for power system analysis, power system control, power transmission and distribution, development of power system products; videotaping; publication of books; photography; organization of art exhibitions for cultural or educational purposes; publication of books and magazines, other than publicity texts
54.
TOWER HEAD OF POWER TRANSMISSION TOWER, AND POWER TRANSMISSION TOWER
Disclosed is a tower head (100, 200, 300, 400) of a power transmission tower. The tower head comprises a frame body (11, 21, 31, 41), a wire hanging structure (12, 22, 32, 42) and a support structure (13, 23, 33, 43). The wire hanging structure (12, 22, 32, 42) comprises at least one insulator. An endpoint of the at least one insulator functions as a wire hanging point for the wire hanging structure (12, 22, 32, 42). The support structure (13, 23, 33, 43) is connected to the wire hanging structure (12, 22, 32, 42) and the frame body (11, 21, 31, 41). Further disclosed is a power transmission tower having the tower head. A power transmission line hung by the tower head has a compact structure, and a corresponding power transmission line corridor is small.
Provided is a cross arm(110), one end of which is connected to a tower body (101), and the end of the cross arm (110) away from the tower body (101) is a free end for connecting a conducting wire (103). The free end comprises an end connecting piece (111) and an extension piece (112). The extension piece (112) is fixed with the end connecting piece (111). In a horizontal projection, the extension piece (112) protrudes from the end connecting piece (111) and the conducting wire (103) is connected to the extension piece (112). The angle between the extension piece (112) and a center line of the cross arm (110) is greater than the angle between the conducting wire (103) and the center line of the cross arm (110). The free end of the cross arm (110) is further provided with a jumper wire device (120), which is horizontally arranged on the end connecting piece (111) and is used for hitching the jumper wire. By using the extension piece, the distance between the conducting wire and the tower body can be increased under the condition that the turning angle is met, thereby the requirement for a electrical gap between the conducting wire and the tower body is met, and there is no need to increase the length of the cross arm. By horizontally arranging the jumper wire device on the end connecting piece, the jumper wire device does not occupy the space in the vertical direction, thereby the distance between wire layers can be reduced, and therefore the size of the tower body can be reduced.
An insulation pull bar (100) comprises an insulation pipe (101) and joints (102) fitted to the two ends of the insulation pipe (101). Each joint (102) comprises an insertion end (110) in axial fitting connection with the insulation pipe (101) and an exposing end (120) extending out from the insertion end (110). A wedge-shaped glue receiving cavity (130) is arranged between the insertion end (110) and the insulation pipe (101). A glue liquid (131) is filled into the wedge-shaped glue receiving cavity (130). According to the insulation pull bar (100), the wedge-shaped glue receiving cavity (130) is arranged between the insertion end (110) and the insulation pipe (101), the wedge-shaped glue receiving cavity structure of the insulation pull bar (100) enables the insulation pull bar (100) to spread a stress surface when being pulled, which effectively improves the stress condition of a glued connection part, and increases the tensile strength, so that safety and reliability are achieved.
Provided are a fixing device (100, 110, 120, 130) and a transmission mast. The fixing device (100, 110, 120, 130) is used to fix a cross-arm (3, 5, 6, 9, 11) to a mast body (2, 4, 7, 8, 10) of a transmission mast. The fixing device (100, 110, 120, 130) comprises a mast body connection member (200, 400, 600, 800) and a cross-arm accommodation member (300, 500, 700, 900, 1000). The mast body connection member (200, 400, 600, 800) is used to connect the mast body (2, 4, 7, 8, 10) and the cross-arm accommodation member (300, 500, 700, 900, 1000). The cross-arm accommodation member (300, 500, 700, 900, 1000) is used to accommodate the cross-arm (3, 5, 6, 9, 11). The fixing device (100, 110, 120, 130) eliminates the need to form a hole on the cross-arm (3, 5, 6, 9, 11), thereby ensuring mechanical performance of the cross-arm (3, 5, 6, 9, 11).
Provided are a composite cross-arm (1) and a transmission mast comprising the composite cross-arm. The composite cross-arm (1) is connected and fixed to a mast body (2) of a transmission mast. The composite cross-arm (1) comprises: a main body (3) extending longitudinally and made of a glass fiber and a resin; and an insulating layer covering at least a portion of the main body (3). The insulating layer is made of silicone rubber. The composite cross-arm has high strength and aging resistance, and can be installed conveniently.
A fitting (101, 201, 301, 403, 404), an insulator (102, 202, 302, 402) and a composite cross arm (140, 240, 340, 440) comprising same, and a transmission tower (150, 250, 350, 450). The fitting is connected to an end of the insulator and comprises a head portion (110, 210, 310), a fixed portion (120, 220, 320), and a rotating portion (130, 230, and 330). The fixed portion is fixedly connected to the end of the insulator. The head portion is configured to be connected to an external device, is rotatably connected to the fixed portion by means of the rotating portion, and is capable of rotating around the axis of the insulator by 360º. The fitting has no limitations in direction, and during mounting of the insulator, the head portion of the fitting can be rotated arbitrarily according to angle requirements of a connection part of an external device, so that following matching can be implemented during connection to ensure successful mounting; moreover, stress concentration on the fitting can be effectively avoided, such that fatigue and stress damage degrees of the fitting can be reduced and the service life is effectively prolonged.
An insulator and a glue binding method therefor. The insulator (100) comprises an insulating body (110), a shed (120), and a flange (130). The insulating body comprises end faces (111, 112) at both sides and an outer insulating body wall (113) located between the two end faces; the shed covers the outer insulating body wall; the flange is connected to an end of the insulator. The flange comprises a bottom (131) and a bushing portion (132) extending out of the bottom; a sealed glue receiving cavity (101) is provided between the inner wall of the middle of the bushing portion and the outer insulating body wall, and is filled with a glue (102); the wall of the bushing portion is provided with a glue injection hole (103) and at least one vent hole (104); both the glue injection hole and the vent hole are in communication with the glue receiving cavity. Horizontal type glue binding of the insulator can be implemented, and glue binding of flanges on both ends can be simultaneously performed without hoisting, and therefore, the production efficiency is high.
09 - Appareils et instruments scientifiques et électriques
17 - Produits en caoutchouc ou en matières plastiques; matières à calfeutrer et à isoler
19 - Matériaux de construction non métalliques
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
Props of metal; pipework of metal; telegraph posts of metal;
electric transmission towers made of galvanized iron;
buildings of metal; rails of metal; wire of common metal;
metal collets; rings of metal; safety chains of metal; metal
flanges; bins of metal; sealing caps of metal; signboards of
metal; rods of metal for welding. Weighing machines; measuring instruments, namely, rulers;
signal lanterns; electric junction boxes; monitoring
apparatus, electric; analysis apparatus and measuring
instruments for use in physical and chemical test and
composition analysis; components and special materials of
scientific instruments; cables, electric; wires, electric;
resistance materials; capacitors; electrical transformers;
circuit breakers; mutual inductors; switches, electric;
conductors, electric; light conducting filaments, namely,
optical fibers; lightning arresters; automation equipment in
power station; protection devices for personal use against
accidents; alarms; batteries, electric; protective
electrical gloves. Gum, raw or partly processed; synthetic rubber; rubber
sleeves for protecting parts of machines; washers of rubber
or vulcanized fiber; watertight rings; joint packings; pipe
gaskets; joint packing for pipes; gaskets; sealant compounds
for joints; pipe jackets, not of metal; pipe muffs, not of
metal; seals; stuffing rings; rings of rubber; acrylic
resins, semi-finished products; artificial resins,
semi-finished products; flexible tubes, not of metal; fiber
glass heat preservation boards and pipes; insulating
materials; insulators for electric mains; Insulators;
dielectrics; insulators for cables; insulators for railway
tracks; fiberglass for insulation; padding materials of
rubber or plastics; stuffing of rubber or plastic. Resin compound boards; works of stone masonry; gypsum;
cement; concrete poles; non-metal wall tiles for building;
refractory fibers; non-metal poles for electric power lines;
non-metal construction materials; non-metal props; flashing,
not of metal, for building; telegraph posts, not of metal;
duckboards, not of metal; fiberglass building components;
buildings, not of metal; safety glass; building materials,
namely, coatings; binding material for road repair. Technical research; technical project studies; scientific
research; quality testing; quality evaluation; quality
control; mechanical research; physics research; surveying;
chemical research; material testing; industrial design;
construction project planning; construction drafting;
computer software design.
62.
INSULATION PIPE AND INSULATION SLEEVE WITH SUCH INSULATION PIPE
Disclosed are an insulation pipe and an insulation sleeve. The insulation sleeve (1000) comprises an insulator (110), wherein the insulator includes an umbrella skirt part (112) in the middle, and a lower flange (114) on a lower end of the umbrella skirt part; a head part (120) connected to an upper end of the insulator, wherein the head part comprises an oil conservator (121) connected to the upper end of the insulator and a connection terminal (122) connected to the oil conservator; and an insulation pipe (100) connected to the lower flange, wherein the insulation pipe comprises a mutual inductor pipe (101) on an upper part and an oil-immersed pipe (102) on a lower part, and the mutual inductor pipe has an inner pipe (103) and a conducting layer provided outside the inner pipe, with the conducting layer being connected to the ground. The insulation pipe and the insulation sleeve solve the problems of connection and sealing, and save material cost.
Disclosed are an insulation sleeve (1000) and an insulation pipe (101). The insulation sleeve (1000) comprises: an insulator (110), which insulator (110) includes an umbrella skirt part (112) in the middle and a lower flange (114) on a lower end of the umbrella skirt part (112); a head part (120), which comprises an oil conservator (121) connected to an upper end of the insulator (110) and a connection terminal (122) connected to the oil conservator (121); and a tail part (100) connected to a lower end of the insulator (110), which tail part (100) has the insulation pipe (101). The insulation pipe (101) is of a glass fibre-reinforced plastic, and the insulation pipe (101) can be made by means of technologies such as filament winding and resin casting. The insulation sleeve (1000) and the insulation pipe (101) have a more convenient connection, solve the difficulty in sealing, have a good sealing effect, and save costs.
09 - Appareils et instruments scientifiques et électriques
17 - Produits en caoutchouc ou en matières plastiques; matières à calfeutrer et à isoler
19 - Matériaux de construction non métalliques
42 - Services scientifiques, technologiques et industriels, recherche et conception
Produits et services
[ Props of metal, namely, brackets of metal for building; Pipework of metal; Telegraph posts of metal; Electric transmission towers made of galvanized iron; Buildings of metal; Rails of metal; Wire of common metal; Metal collets; Ring-shaped fittings of metal; Safety chains of metal; Metal flanges; Bins of metal; Sealing caps of metal; Signboards of metal; Rods of metal for welding ] [ Weighing machines; Measuring instruments, namely, rulers; Signal lanterns, namely, optical lanterns, rotating lights signalling, or traffic-light apparatus signalling devices; Electric junction boxes; Video monitors; Scientific instrumentation for measuring quality of silica gel, rubber or other composite materials of rubber not for medical use; Cables, electric; Wires, electric; Resistance materials, namely, resistance wire and electric resistance; Capacitors; Electrical transformers; Circuit breakers; Electrical inductors, namely, current transformers and electric voltage transformers; Switches, electric; Conductors, electric; Light conducting filaments, namely, optical fibers; Lightning arresters; Automated process control system, namely, micro-processor based hardware and software used to monitor the status of industrial processes, namely power generation, electrical distribution and oil and gas processing; Clothing for protection against accidents; Burglar alarms; Batteries, electric; Protective work gloves ] Gum, raw or partly processed; Synthetic rubber; Rubber sleeves for protecting parts of machines; Washers of rubber or vulcanized fiber; Watertight rings used for pipes, transformers, electrical reactors, electrical inductors, capacitors, circuit breakers, electric switches, lightening arresters, electrical terminators, insulators for electrical cables; Joint packing used for pipes, transformers, electrical reactors, electrical inductors, capacitors, circuit breakers, electric switches, lightening arresters, electrical terminators, insulators for electrical cables; Pipe gaskets; Gaskets; Sealant compounds for joints; Pipe muffs, not of metal; Seals used as connections for pipes, transformers, electrical reactors, electrical inductors, capacitors, circuit breakers, electric switches, lightening arresters, electrical terminators, insulators for electrical cables; Stuffing rings used for pipes, transformers, electrical reactors, electrical inductors, capacitors, circuit breakers, electric switches, lightening arresters, electrical terminators, insulators for electrical cables; Rings of rubber used as connection for pipes, transformers, electrical reactors, electrical inductors, capacitors, circuit breakers, electric switches, lightening arresters, electrical terminators, insulators for electrical cables; Semi-processed acrylic resins; Semi-processed synthetic resins; Flexible tubes, not of metal; Fiber glass heat preservation boards and pipes; Insulating materials; Insulators for electric mains; Insulators; Dielectrics; Insulators for cables; Insulators for railway tracks; Fiberglass for insulation; Padding materials of rubber or plastics; Stuffing of rubber or plastic [ Construction materials in the nature of non-metal composite panels composed primarily of resin; Gypsum; Cement; Concrete poles for use as building materials; Non-metal wall tiles for building; Refractory construction materials namely, fiberglass for insulation; Non-metal poles for electric power lines; Construction materials, namely, non-metal flooring materials; Brackets, not of metal, for building; Flashing, not of metal, for building; Telegraph posts, not of metal; Duckboards, not of metal; Non-metal building materials, namely, fiberglass panels and pipes; Buildings, not of metal; Safety glass for building purposes; Building materials, namely, coatings, namely, fireproof cement coatings; Binding material for road repair, namely, asphalt ] Technical research in the field of composite materials, high polymer materials, high-voltage insulation, new energy resources, electric power systems, electric power, electricity, structural mechanics and materials science; Scientific research; Product quality testing; Quality evaluation; Quality control; Mechanical research; Physics research; Surveying; Chemical research; Material testing; Industrial design; Construction project planning, namely, research on building construction, planning of buildings and infrastructure systems for buildings; Construction drafting; Computer software design
A power transmission tower comprises a tower body (100) longitudinally arranged and cross arms (120) transversely arranged on the tower body. The tower body (100) is provided with a first transverse direction (Y) and a second transverse direction (X), which are perpendicular to each other, in the horizontal direction. A supporting piece (110), which extends outwards from the tower body (100) in the first transverse direction (Y), is arranged on the power transmission tower. One end of the supporting piece (110) is fixed to the tower body (100) and the other end of the supporting piece (110) is a free end (111, 112). The cross arms (120) extend in the second transverse direction (X). One end of each cross arm (120) is connected to the free end (111, 112) and the other end of each cross arm (120) is used for arranging overhead wires. The power transmission tower reduces corridor width and occupies less area.
Disclosed is a guiding apparatus, which is applied to an insulator. The insulator comprises an insulating pipe. The guiding apparatus is arranged inside the insulating pipe. A guiding hole is axially provided at the centre of the guiding apparatus. A control lever is axially arranged inside the insulating pipe, and the control lever passes through the guiding hole and can move up and down. The guiding apparatus comprises a guiding part, wherein the guiding part is provided with at least one positioning part, the positioning part extends out from a side surface of the guiding part, the guiding part is also provided with a driving part, and the positioning part is driven by the driving part to extend out upwards in the radial direction to abut against the inner wall of the insulating pipe, so that the guiding apparatus is fixed in the insulating pipe. Also disclosed is an insulator with a control lever, comprising an insulating pipe, wherein a guiding apparatus is also fixed in the insulating pipe, and the guiding apparatus is the aforementioned guiding apparatus of the present invention. The guiding apparatus and the insulator with a control lever in the present invention are simple in structure and convenient to install.
12 - Véhicules; appareils de locomotion par terre, par air ou par eau; parties de véhicules
17 - Produits en caoutchouc ou en matières plastiques; matières à calfeutrer et à isoler
19 - Matériaux de construction non métalliques
Produits et services
(1) Metal brackets for use in the construction and assembly of decking; drain pipes of metal pipe coupling of metal branching pipes of metal branching tubes of metal for pipelines; metal pipes for liquid and gas transfer; Telegraph posts of metal; metal transmission tower; portable mobile metal office buildings; Guard rails of metal for railways; Wire of common metal; cable clamps of metal; metal rings for keys; copper rings; screw rings of metal; Safety chains of metal; metal flanges; General purpose metal storage bins; Sealing caps of metal for bottles; Signboards of metal; Rods of metal for welding
(2) Rubber, raw; Rubber, semi-worked; Synthetic rubber; Rubber sleeves for protecting parts of machines; Washers of rubber; Washers of vulcanized fiber; Stuffing rings of rubber; stuffing rings of plastic; Industrial packaging containers of rubber; Joint packings for pipes; Pipe gaskets; Sealant compounds for joints; Pipe Jackets, not of metal; Pipe muffs of rubbers; dynamic seals; Rings of rubber for use as pipe connection seals; rubber seals for jars, pipe jackets; Watertight rings for plumbing pipes; Sealing rings; semi-processed acrylic resins; semi-processed synthetic resins; air hoses; garden hoses; hoses for air conditioners; plastic water pipes; fiberglass insulation; insulating tapes; insulating washers; Insulators for electric mains; ceramic insulators;electric, thermal and acoustic insulators; electrical ceramic insulators; insulators for cables;Insulators for railway tracks; Fiberglass for insulation; Padding materials of rubber; Padding materials made of plastics; Stuffing of rubber; Stuffing of plastic.
(3) Building stone; gypsum; alumina cement; asbestos cement; Cement electricity pole; non-metallic tiles and paving slabs; wooden poles for electric power lines; building materials, namely, stone veneer, logs; non-metallic roof flashing; wooden posts for electric power lines; non-metallic duckboards; building glass; non-luminous concrete beacon transmission tower; Safety glass; roof coatings; fireproof cement coatings; Binding material for road repair.
68.
COMPOSITE TOWER FOR POWER TRANSMISSION LINES OF POWER GRID AND COMPOSITE CROSS ARM STRUCTURE THEREOF
The present invention relates to the field of power transmission towers. Provided is a composite cross arm structure for a composite tower for power transmission lines of a power grid. The composite cross arm structure comprises two sets of cross arm insulators arranged in a V-shape along a horizontal plane direction, a first end of each set of cross arm insulators at a V-shaped opening being connected to a tower body of the composite tower; and cable-strain insulators corresponding to each set of cross arm insulators, one end of the cable-strain insulators being connected to second ends of the cross arm insulators at the top point of the V-shape and the other end of the cable-strain insulators being connected to the tower body above the cross arm insulators. Since the composite cross arm structure is formed by the combination of the cross arm insulators of V-shaped triangle structure and the cable-strain insulators, the structure is relatively stable, and capable of bearing a relatively large pressure, so as to be able to hang the high-voltage power transmission lines of a power grid. The present invention further provides a composite tower for power transmission lines of a power grid having the composite cross arm structure.
A composite crossarm fixed on a pole body of a transmission pole is disclosed. The composite crossarm includes: a core rod, an insulating layer and a load- bearing member. The insulating layer and the load-bearing member cover and are fixed to an outer peripheral surface of the core rod. The load-bearing member is positioned in a middle region of the core rod connected to the pole body, and the insulating layer is positioned in regions of the core rod other than the middle region. A transmission pole using the above composite crossarm is also disclosed. In the above manner, the load-bearing member is arranged at a position where the the core rod is connected to the pole body in advance. On one hand, the core rod is able to be connected to the pole body without providing with a hole. On the other hand, the load caused by the fixed connection is applied on the load-bearing member directly, with no damage to the insulating layer. Both the load-bearing member and the insulating layer cover and are fixed on the outer peripheral surface of the core rod, so that the core rod is protected from external corrosion, to ensure the mechanical properties of the composite crossarm.
An overhead power distribution line (10) comprises a tension resistant pole (101), two composite crossbeams (102) and tension resistant fixing members (103). A middle portion of the composite crossbeam (102) is horizontally secured on the tension resistant pole (101), and end portions of the composite crossbeam (102) are connected to the tension resistant fixing members(103). The tension resistant fixing members (103) enable the two compositecrossbeams (102) to integrally connect and are for fixing conducting lines. With the above configuration, two composite crossbeams (102) are secured on the same horizontal plane of the tension resistant pole (101), thus satisfying vertical tension of a tension resistant requirement. Further, by using composited crossbeam bodies (102), a dry arc distance is significantly increased, and electrical lightning resistance performance is enhanced, preventing incidents such as line disconnection and flashover caused by lightning strike. The composite crossbeams (102) are maintenance-free and do not require periodical inspection and maintenance, significantly reducing labor costs. The use of crossbeams (102) can further eliminate the use of tension insulators and simplify the structure of lines.
The present application discloses an insulating cross arm and a preparation method thereof, and a transmission pole. The insulating cross arm includes: an integrally cast connecting fitting including an intermediate connecting part and two sleeves respectively disposed at opposite ends of the intermediate connecting part; a core rod including a first core rod and a second core rod, an end of the first core rod and an end of the second core rod being respectively fixed in the two sleeves; two wire attaching fittings respectively fixed to another end of the first core rod and another end of the second core rod; and an insulating layer coated on and fixed to an outer peripheral surface of the core rod. The insulating layer is located in other regions, and the insulating layer is connected with both the connecting fitting and the wire attaching fittings in a sealing way.
The present application discloses a composite crossann, composite crossarm fittings and a power transmission tower. The composite crossarm includes a post insulator and three suspension insulators. The post insulator and the suspension insulators each has an end configured to be connected to a tower body of the power transmission tower, and the other end connected together to form an end of the composite crossarm that is configured to attach a transmission line. The other end of the post insulator is connected with the other end of the suspension insulator through an end fitting including a first flange tube, a covering plate covering an end of the first flange tube, and an attachment plate provided at a side of the covering plate away from the first flange tube, connected to the covering plate, and configured to attach the transmission line.
The present disclosure discloses a composite crossarm and a power transmission tower. The composite crossarm includes two post insulators and two suspension insulators. Of the two post insulators and the two suspension insulators, one ends are configured to be connected to a tower body of a power transmission tower, and the other ends are connected together to form an end portion of the composite crossarm to hang a power transmission line. The two suspension insulators are located on same sides of the two post insulators and respectively arranged adjacent to the two post insulators. At the same time, an angle between the two post insulators ranges from 200 to 50 , and an angle between the post insulator and the suspension insulator adjacent thereto ranges from 15 to 450. The composite crossarm according to the present disclosure is highly stable and can provide favorable conditions for mounting a first grading ring on the post insulator and mounting a second grading ring on the suspension insulator.
The present application relates to a high-voltage winding (130), comprising a winding body (1310), a high-voltage coil (1320) and a high-voltage insulating layer (1330). A wire is wound on the winding body (1310) to form the high-voltage coil (1320), and the high-voltage insulating layer (1330) wraps the high-voltage coil (1320) and the winding body (1310). The present application further relates to a method for preparing the high-voltage winding.
H01F 27/30 - Fixation ou serrage de bobines, d'enroulements ou de parties de ceux-ci entre euxFixation ou montage des bobines ou enroulements sur le noyau, dans l'enveloppe ou sur un autre support
H01F 27/32 - Isolation des bobines, des enroulements, ou de leurs éléments
H01F 27/34 - Moyens particuliers pour éviter ou réduire les effets électriques ou magnétiques indésirables, p. ex. pertes à vide, courants réactifs, harmoniques, oscillations, champs de fuite
H01F 41/076 - Formation de prises ou de bornes lors de l’enroulement, p. ex. par enveloppement ou par brasage du fil sur les broches, ou en formant directement des bornes à partir du fil
A winding body (1310) is used for a high-voltage winding (130). The winding body (1310) comprises: several winding plates (1313), each winding plate (1313) being provided with several winding grooves (1314) so as to form several comb teeth on the winding plates (1313); and at least one auxiliary member (5316), wherein the auxiliary member (5316) is annular, the winding plates (1313) are arranged along the circumferential direction of the auxiliary member (5316), and the auxiliary member (5316) is fixedly connected to the winding plates (1313). A high-voltage winding (130) comprises: the winding body (1310); a high-voltage coil (1320); and a high-voltage insulating layer (1330). A dry-type transformer (10) comprises an iron core (110), a low-voltage winding (120) and the high-voltage winding (130), wherein the low-voltage winding (120) is sleeved outside tire iron core (110), and the high-voltage winding (130) is sleeved outside the low-voltage winding (120).
H01F 27/30 - Fixation ou serrage de bobines, d'enroulements ou de parties de ceux-ci entre euxFixation ou montage des bobines ou enroulements sur le noyau, dans l'enveloppe ou sur un autre support
76.
HOLLOW INSULATING TUBE, PREPARATION METHOD FOR HOLLOW INSULATING TUBE, AND COMPOSITE INSULATOR
Disclosed in the present application is a hollow insulating tube, comprising an inner axial layer, a circumferential layer, and an outer axial layer that are arranged sequentially from inside to outside. Each of the inner axial layer and the outer axial layer comprises a plurality of axial fiber yarns. The circumferential layer comprises a plurality of circumferential fiber yams. The inner axial layer, the circumferential layer and the outer axial layer are wetted with resin liquid and then cured to form the hollow insulating tube.
