A plunger pump, comprising a pump head assembly (100), which comprises: a pump head body (101), a chamber being provided in the pump head body (101); a liquid suction valve assembly (102), a liquid discharge valve assembly (103), and a separation sleeve (104) for separating the liquid suction valve assembly (102) from the liquid discharge valve assembly (103) that are located in the chamber; the chamber comprises: a liquid suction valve base mounting portion (1012) for mounting the liquid suction valve assembly (102), a separation sleeve mounting portion (1013) for mounting the separation sleeve (104), a liquid discharge valve base mounting portion (1014) for mounting the liquid discharge valve assembly (103), and a liquid suction chamber (1011) located on a lower side of the liquid suction valve base mounting portion (1012); the liquid suction chamber (1011) is in communication with an emulsion supply device by means of a pipeline, the transition between the liquid discharge valve base mounting portion (1014) and the separation sleeve mounting portion (1013) is achieved by means of a stepped surface, the pore diameter of the liquid discharge valve base mounting portion (1014) is larger than that of the separation sleeve mounting portion (1013), and the pore diameter of the separation sleeve mounting portion (1013) is larger than or equal to that of the liquid suction valve base mounting portion (1012). Moreover, a pump station using such a plunger pump, the plunger pump is easy to disassemble and assemble and maintain.
F04B 53/22 - Dispositions pour l'assemblage ou le démontage rapide
F04B 1/16 - "Machines" ou pompes multicylindres caractérisées par le nombre ou la disposition des cylindres ayant des cylindres coaxiaux, parallèles ou inclinés par rapport à l'arbre principal les cylindres étant immobiles ayant plusieurs ensembles de cylindres ou de pistons
An emulsion plunger pump, comprising: a pump head assembly (100). The pump head assembly (100) comprises: a pump head body (101) and a liquid suction valve assembly (102) located in the pump head body (101), a liquid discharge valve assembly (103), and a spacing sleeve (104) for isolating the liquid suction valve assembly (102) from the liquid discharge valve assembly (103). The pump head body (101) comprises a liquid suction valve seat mounting portion (1012) for mounting the liquid suction valve assembly (102), a spacing sleeve mounting portion (1013) for mounting the spacing sleeve (104), and a liquid discharge valve seat mounting portion (1014) for mounting the liquid discharge valve assembly (103); the liquid discharge valve seat mounting portion (1014) and the spacing sleeve mounting portion (1013) are transitioned by means of a stepped surface; the spacing sleeve mounting portion (1013) and the liquid suction valve seat mounting portion (1012) are transitioned by means of a stepped surface; and a hole diameter of the liquid discharge valve seat mounting portion (1014) is larger than that of the spacing sleeve mounting portion (1013), and the hole diameter of the spacing sleeve mounting portion (1013) is larger than that of the liquid suction valve seat mounting portion (1012). This plunger pump facilitates disassembling/assembling and maintenance.
F04B 53/22 - Dispositions pour l'assemblage ou le démontage rapide
F04B 1/16 - "Machines" ou pompes multicylindres caractérisées par le nombre ou la disposition des cylindres ayant des cylindres coaxiaux, parallèles ou inclinés par rapport à l'arbre principal les cylindres étant immobiles ayant plusieurs ensembles de cylindres ou de pistons
3.
SYSTEM AND METHOD FOR CONSTRUCTING FULLY MECHANIZED COAL MINING FACE DIGITAL MINING MODEL
A system and method for constructing a fully mechanized coal mining face digital mining model. The system comprises: a summary three-dimensional model building module (101), configured to construct a preliminary three-dimensional model of coal seam geographic information of a working face; an inspection assembly (102), configured to obtain three-dimensional space information of the working face and a top plate and a bottom plate of the working face; a mobile device positioning module (103), configured to obtain spatial location coordinates of a mobile device in the working face in the preliminary three-dimensional model; a fully mechanized coal mining device positioning module (104), configured to obtain spatial location coordinates of a fully mechanized coal mining device in the working face in the preliminary three-dimensional model; a sensor module (105), configured to detect the working state of the mobile device or the fully mechanized coal mining device; and a model construction module (106), configured to fuse the data to obtain the fully mechanized coal mining face digital mining model. By means of the system, the physical relation between the mobile device in the working face and the working face and the physical relation between the fully mechanized coal mining device at the fixed position and the working face can be obtained, a fully mechanized coal mining face digital mining model is established, and the standard and basis for intelligent control over the fully mechanized coal mining device and the mobile device are provided.
An aqueous medium guarantee system (200) for a coal face. An aqueous medium is used as a working medium. The system comprises: a working medium use mechanism (209); a working medium storage mechanism (205), the working medium storage mechanism (205) being communicated with the working medium use mechanism (209), so as to supply the working medium to the working medium use mechanism (209); and a first monitoring mechanism (206), the first monitoring mechanism (206) being communicated between the working medium storage mechanism (205) and the working medium use mechanism (209), so as to detect the quality of the working medium flowing from the working medium storage mechanism (205) to the working medium use mechanism (209), and when the first monitoring mechanism (206) detects that the quality of the working medium is substandard, supply of the working medium from the working medium storage mechanism (205) to the working medium use mechanism (209) being stopped. The system facilitates reduction of the maintenance cost in a mining operation process.
E21D 23/16 - Caractéristiques hydrauliques ou pneumatiques, p. ex. circuits, disposition ou adaptation de soupapes, dispositifs de mise en place ou de retrait
Disclosed is a rapid support moving system for an aqueous medium hydraulic support, the system comprising: an integrated liquid supply subsystem; a hydraulic support subsystem, which is connected to the integrated liquid supply subsystem; a support control subsystem, which is used for controlling the hydraulic support subsystem; and an association control subsystem, which is used for controlling linkage between the integrated liquid supply subsystem and the hydraulic support subsystem, such that the hydraulic support subsystem can realize rapid support moving. A working medium therefor is an aqueous medium. In the rapid support moving system for an aqueous medium hydraulic support, an aqueous medium is used as a working medium, and rapid movement and intelligent linkage control of the hydraulic support are achieved.
E21D 23/18 - Caractéristiques hydrauliques ou pneumatiques, p. ex. circuits, disposition ou adaptation de soupapes, dispositifs de mise en place ou de retrait des mécanismes d'avance
E21D 23/16 - Caractéristiques hydrauliques ou pneumatiques, p. ex. circuits, disposition ou adaptation de soupapes, dispositifs de mise en place ou de retrait
C02F 9/02 - Traitement en plusieurs étapes de l'eau, des eaux résiduaires ou des eaux d'égout comportant une étape de séparation
C02F 9/04 - Traitement en plusieurs étapes de l'eau, des eaux résiduaires ou des eaux d'égout une étape au moins étant un traitement chimique
6.
TRANSPORTATION DEVICE FOR INTEGRATED LIQUID SUPPLY SYSTEM, CONTROL SYSTEM THEREOF, AND INTEGRATED LIQUID SUPPLY APPARATUS
Disclosed are a transportation device for an integrated liquid supply system, a control system thereof, and an integrated liquid supply apparatus. The transportation device comprises a plurality of sequentially connected flatbed truck assemblies (101). Each of the flatbed truck assemblies comprises a truck body (201); a medium conveying path, having a first end connected to a medium outlet of the integrated liquid supply system via a valve assembly (502) and a second end connected to a medium converging point (304); a reversing valve (206), having a liquid inlet end connected to the medium converging point; a hydraulic motor (202), mounted at a designated position on the truck body, having a first end and a second end respectively connected to a first end and a second end of the reversing valve, wherein the hydraulic motor is capable of adjusting the rotation direction and rotation speed of a drive output shaft thereof according to a flow direction of the medium and an amount of flowing medium; a transmission mechanism, arranged at the bottom portion of the truck body and comprising a driving wheel (203), the driving wheel having a rotation shaft connected to the drive output shaft of the hydraulic motor, such that the driving wheel is driven by the drive output shaft to either rotate or stop, and in turn causes the flatbed truck assembly to move or stop. The transportation device improves the safety and stability of the integrated liquid supply system during transportation.
A hydraulic control one-way valve, comprising a threaded sleeve (1), a valve rod (2), a valve seat (4), a valve element (3), a fastening spring (6), and a control piston (7), wherein the threaded sleeve (1) is provided with a first containing cavity (11) and a second containing cavity that are in communication with each other, a limiting face (13) is defined at the junction between the first containing cavity (11) and the second containing cavity, the outer wall of the threaded sleeve (1) is provided with a flowing-out hole (14), the valve rod (2) is provided with a communication hole (21) penetrating the valve rod (2) in the axial direction, the valve rod (2) sequentially comprises a sliding section (22), a buffering section (23), and an abutting section (24) in the axial direction, the sliding section (22) slides in the first containing cavity (11) in a sealed manner, the valve seat (4) is fixed in the second containing cavity, the valve element (3) is fixedly sheathed in the buffering section (23), the valve element (3) abuts against the valve seat (4) in a sealed manner, the buffering section (23) is sheathed with the fastening spring (6), a clamping hole (72) is provided in the control piston (7), a throttling hole (71) is further provided in the outer side face, in the axial direction, of the control piston (7), and the throttling hole (71), the clamping hole (72) and the communication hole (21) are in communication. According to the hydraulic control one-way valve, on the basis of relieving unloading impact, the sealing effect is guaranteed, the structure of the hydraulic control one-way valve is optimized, difficulties of maintenance are reduced, and safety is improved.
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