The invention relates to a thermally insulated conduit pipe (18), which is continuously produced and comprises, when finished, an external pipe (1), at least one internal pipe (2) arranged in the external pipe (1), and a cured insulating foam (1a) between the internal pipe (2) and the external pipe (1). The method comprises the steps of: forming a film tube (6) around the internal pipe (1) and introducing a foamable starting material into the film tube (6), which starting material expands to form an insulating foam, and the insulating foam cures; guiding the internal pipe (2) together with the film tube (6) and the foamable starting material through an extrusion head (10), by means of which the external pipe (1) is extruded, so as to result in a semifinished product; forming a corrugation in the external pipe in a corrugator (11); detecting a position of the longitudinal axis of the corrugated external pipe (11) based on the position of the longitudinal axis of the internal pipe (2) by means of a detection device (13); adjusting the position of the corrugated external pipe (1) relative to the internal pipe (2) by means of a positioning device (12) until its longitudinal axis is in the intended position with respect to the longitudinal axis of the internal pipe (2); and fixing the external pipe (1) in the intended position.
The invention relates to the use of special polymer layers as barriers, in particular as barrier layers in composite materials. Suitable polymers for the polymer layer are copolymers consisting of ethylene and vinyl alcohol or consisting of ethylene and carbon monoxide or consisting of ethylene and carbon monoxide and propylene. These barrier layers exhibit a selective barrier effect with respect to different gases, the barrier effect being especially effective with respect to HFOs. On account of these properties, such barrier layers can positively affect insulating properties, for example in thermally insulated pipes.
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
B32B 27/06 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance
B32B 5/18 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer containing foamed or specifically porous material
3.
Thermally insulated medium pipes having HFO-containing cell gas
The invention relates to a thermally insulated conduit pipe, comprising at least one medium pipe, at least one thermal insulation arranged around the medium pipe, and at least one outer jacket arranged around the thermal insulation, wherein the outer jacket possibly comprises a barrier made of plastic, and wherein the thermal insulation comprises a foam, the cell gas of which contains at least 10 vol % HFOs. Such conduit pipe has good insulating behavior, good environmental balance, and is easily producible.
F16L 59/14 - Arrangements for the insulation of pipes or pipe systems
B32B 5/20 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer containing foamed or specifically porous material foamed in situ
B32B 15/04 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance
B32B 27/06 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
C08J 9/12 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
C08J 9/14 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
B32B 5/18 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer containing foamed or specifically porous material
B29C 44/04 - Shaping by internal pressure generated in the material, e.g. swelling or foaming for articles of definite length, i.e. discrete articles consisting of at least two parts of chemically or physically different materials, e.g. having different densities
B29C 44/12 - Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
Thermally insulated pipes including thermal insulation, outer jacket and medium pipes, wherein the thermal insulation includes a foam having a density of 30-80 kg/m3, the outer jacket includes a thermoplastic plastic (21) having a modulus of 300-1400 MPa and having a corrugated shape. The invention further relates to the use as well as the manufacture of such tubes. Furthermore, the invention relates to composite materials, their use for thermal insulation, as well as their manufacture.
B32B 5/20 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer containing foamed or specifically porous material foamed in situ
B32B 27/06 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance
The invention relates to a thermally insulated conduit pipe, comprising at least one medium pipe, at least one thermal insulation arranged around the medium pipe, and at least one outer jacket arranged around the thermal insulation, wherein the outer jacket possibly comprises a barrier made of plastic, and wherein the thermal insulation comprises a foam, the cell gas of which contains at least 10 vol % HFOs. Such conduit pipe has good insulating behavior, good environmental balance, and is easily producible.
F16L 59/14 - Arrangements for the insulation of pipes or pipe systems
B32B 5/20 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer containing foamed or specifically porous material foamed in situ
B32B 15/04 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance
B32B 27/06 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
C08J 9/12 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
C08J 9/14 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
B32B 5/18 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer containing foamed or specifically porous material
The invention relates to a thermally insulated line tube (1) comprising a medium tube (4), at least one thermal insulation (3) arranged about the medium tube, and at least one corrugated outer jacket (2) arranged about the thermal insulation. The outer jacket (2) has an inscription on a part of the upper face of at least one web (5a) of the corrugation (5), said inscription extending transversely or parallel to the longitudinal axis (z) and along the length of a circular arc (K) of the jacket circumference. The inscription on the web (5a) contains at least one sub-block (11a) of different pieces of information of a total information block (11) or a total information block (11), wherein the inscription repeats after a specified number of webs (5a), optionally with one or more changed pieces of information of the information block (11).
F16L 11/15 - Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics corrugated
B29C 48/00 - Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired formApparatus therefor
F16L 59/14 - Arrangements for the insulation of pipes or pipe systems
F16L 11/12 - Hoses, i.e. flexible pipes made of rubber or flexible plastics with arrangements for particular purposes, e.g. specially profiled, with protecting layer, heated, electrically conducting
The invention relates to thermally insulated line pipes comprising thermal insulation, outer jackets, and medium pipes, wherein the thermal insulation has a foam with a density of 30-80kg/m3, and the outer jacket comprises a thermoplastic (21) which has a modulus of 300-1400 MPa and a wave shape. The invention additionally relates to the use and the production of such pipes and to composite materials, the use thereof for thermal insulation, and the production thereof.
B32B 3/26 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids
B32B 3/28 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids characterised by a layer comprising a deformed thin sheet, e.g. corrugated, crumpled
B32B 3/30 - Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layerLayered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shapeLayered products comprising a layer having particular features of form characterised by a layer with cavities or internal voids characterised by a layer formed with recesses or projections, e.g. grooved, ribbed
B32B 5/14 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by a layer differing constitutionally or physically in different parts, e.g. denser near its faces
B32B 5/18 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer containing foamed or specifically porous material
B32B 5/20 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer containing foamed or specifically porous material foamed in situ
B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
B32B 15/04 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance
B32B 15/08 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin
B32B 15/18 - Layered products essentially comprising metal comprising iron or steel
B32B 15/20 - Layered products essentially comprising metal comprising aluminium or copper
B32B 27/06 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance
The invention relates to a method for continuously producing a heat-insulated corrugated conduit pipe (1) comprising at least one inner pipe (2). A corrugated outer casing of the conduit pipe is first produced using an extruder (27) and a corrugator (28), and the inner pipe arranged in a film tube together with a foam-forming starting material is guided into the corrugator, in which the previously corrugated outer casing of the conduit pipe is filled with the heat-insulating foam. The device (10) provided for carrying out the method has a protective pipe (26), by means of which the inner pipe surrounded by the film tube can be guided into the corrugator in a separate manner from the extrusion and corrugation process of the outer casing.
The invention relates to a thermally insulated conduit pipe, comprising at least one medium pipe, at least one thermal insulation arranged around the medium pipe, and at least one outer jacket arranged around the thermal insulation, wherein the outer jacket possibly comprises a barrier made of plastic, and wherein the thermal insulation comprises a foam, the cell gas of which contains at least 10 vol % HFOs. Such conduit pipe has good insulating behavior, good environmental balance, and is easily producible.
F16L 59/14 - Arrangements for the insulation of pipes or pipe systems
B32B 5/20 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer containing foamed or specifically porous material foamed in situ
B32B 15/04 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance
B32B 27/06 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
C08J 9/12 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
C08J 9/14 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
B32B 5/18 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer containing foamed or specifically porous material
10.
Device for fuelling motor vehicles with liquefied gas
A device for fueling motor vehicles with a fluid used as a fuel and composed of liquefied gas, in particular liquefied natural gas, includes: at least one storage container; a cooling device; at least one conveying device for feeding the fluid from the at least one storage container to at least one fueling device for motor vehicles; and at least one line for supplying the fluid to the fueling device. The at least one line includes a media-conveying central pipeline as a medium pipe and at least one additional media-conveying pipeline that is arranged concentrically with respect to the central pipeline and defines an annular space together with the media-conveying central pipeline. The media-conveying central pipeline and the at least one annular space supply and return the fluid or a gas flow. The at least one additional media-conveying pipeline is surrounded by a jacket pipe.
F17C 5/04 - Methods or apparatus for filling pressure vessels with liquefied, solidified, or compressed gases for filling with liquefied gases requiring the use of refrigeration, e.g. filling with helium or hydrogen
B67D 7/04 - Apparatus or devices for transferring liquids from bulk storage containers or reservoirs into vehicles or into portable containers, e.g. for retail sale purposes for transferring fuels, lubricants or mixed fuels and lubricants
B67D 7/54 - Filling nozzles with means for preventing escape of liquid or vapour or for recovering escaped liquid or vapour
B67D 7/78 - Arrangements of storage tanks, reservoirs or pipe-lines
The invention relates to the use of special polymer layers as barriers, in particular as barrier layers in composite materials. Suitable polymers of the polymer layer are copolymers of ethylene and vinyl alcohol or of ethylene and carbon monoxide or of ethylene and carbon monoxide and propylene. These barrier layers exhibit a selective barrier effect with respect to different gases, wherein the barrier effect with respect to HFOs is especially good. Because of these properties, such barrier layers can positively influence the insulating and isolating properties, for example in thermally insulated pipes.
C08J 9/12 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
C08J 9/14 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
12.
THERMALLY INSULATED MEDIUM PIPES HAVING HFO-CONTAINING CELL GAS
The invention relates to a thermally insulated conduit pipe (1), comprising at least one medium pipe (4), at least one heat insulation (3) arranged around the medium pipe, and at least one outer jacket (2) arranged around the heat insulation, wherein as an option, the outer jacket (2) comprises a barrier (9) made of plastic, and wherein the thermal insulation (3) comprises a foam material, the cell gas of which contains at least 10% by volume of HFOs. Such a conduit pipe has good insulating behavior, a good environmental balance, and can be produced in a simple manner.
B32B 5/18 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer containing foamed or specifically porous material
B32B 5/20 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer containing foamed or specifically porous material foamed in situ
B32B 15/04 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance
B32B 27/06 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
The invention relates to a device for fuelling land vehicles and watercraft with a liquefied gas, in particular liquid natural gas (LNG), serving as a fuel. A line (5) configured as a corrugated pipe is arranged between a respective fuelling device, configured as a filling point, which is correspondingly equipped in a manner known per se for the various types of motor vehicles. The line (5) has a media-channelling central pipeline (6) as medium pipe through which the fuel can be delivered from a storage tank to the respective fuelling device. The central pipeline (6) is concentrically enclosed by two further media-channelling pipelines (7, 8), with the result that two media-channelling annular spaces (9, 10) are obtained. Finally, there is additionally provided an outer jacket pipe (11) as outer pipe which encloses an annular insulating material (12) between the outer annular space (10) and the jacket pipe (11) so as to thermally insulate the line (5). Since the central pipeline (6) and the two media-channelling annular spaces (9, 10) are separated only by the wall surface of the respective pipelines (6, 7), but not thermally insulated, heat is removed from the medium channelled in the annular spaces (9, 10) by the fuel channelled in the central pipeline (6) and said medium is correspondingly cooled.
F17C 5/04 - Methods or apparatus for filling pressure vessels with liquefied, solidified, or compressed gases for filling with liquefied gases requiring the use of refrigeration, e.g. filling with helium or hydrogen
14.
Double-wall pipe with a heat insulating layer and a plastic outer pipe thereof
A double-wall pipe includes a media-conveying inner tube, and a multilayer plastics outer tube with a gas permeation barrier layer. The plastics outer tube includes a significant proportion of polyethylene (PE). The gas permeation barrier layer consists of a compact extruded polyethylene terephthalate (PET) layer having a material thickness of from 0.8 mm to 2 mm or comprises a closed-cell foam made from PET having a material thickness of between 10 mm and 100 mm. A heat insulating layer is arranged in an annular gap between the inner tube and the plastics outer tube.
F16L 9/14 - Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
F16L 59/14 - Arrangements for the insulation of pipes or pipe systems
B32B 5/18 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer containing foamed or specifically porous material
B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
F16L 9/12 - Rigid pipes of plastics with or without reinforcement
B32B 27/06 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance
The invention relates to a device for producing a foamed product. For this purpose, the device has a spraying head having a perforated disk (1) in the form of a circular ring, the central circular opening (2) of which perforated disk forms a passage for a conducting pipe. The perforated disk (1) has a plurality of passage openings (5), which are spaced apart from each other and arranged on a plurality of concentric hole circles (3, 4) and through which the material to be foamed exits and reaches the outer surface of the conducting pipe. The passage openings (5) arranged on the same hole circle (3, 4) are evenly distributed on the particular hole circle (3, 4) and have a matching cross-sectional area. Because the passage openings (5) are bounded by two lateral lines (6, 7) following circular arcs concentric to each other and by two radially extending lateral lines (8, 9), the distance (b) of which from each other in a first region facing the center point (10) of the hole circles (3, 4) is smaller than the distance (B) of the lateral lines (8, 9) in a second region spaced apart from the first region and facing away from the center point (10), the individual passage openings (5) complement each in order to form a circular ring in total. Thus, the expanded material strands adjoin each other such that a homogeneous distribution of the foamed material over the entire cross-sectional area results.
The invention relates to a connecting arrangement which comprises a thermally insulated line pipe (2) and an attachment piece (10) which has a sleeve-like element (9) that is engaged into the heat insulation (3). Said element is made of a polymer which contains polyketones or is made from polyketones. It has been shown that such an element is resistant against the components of the heat insulation.
When manufacturing a thermally insulated conduit comprising an inner tube (2), thermal insulation (20) and an outer sleeve (13), a barrier made of a polymer that contains or consists of polyketones is used. A conduit of said type is protected against gas diffusion and is easy to manufacture.
The present invention claims a method and a cutting tool with which the insulating material surrounding the inner pipe can be detached and removed from a thermally insulated pipe, such that an annular gap, in which there is no longer any insulating material and in which the now exposed inner pipe has a clean surface without residual insulating material, is produced around the inner pipe. The pipe thus prepared can subsequently be connected to another pipe section with the aid of a plastic fitting.
To produce composite parts (1) having an inner molded part (2) with openings (3) that are accessible from the outside, the molded part is introduced into a molding tool, to the mold wall of which a shell layer (11) has been applied. The cavity between the molded part (2) and shell layer (11) is filled with a thermally insulating plastics foam (12) which foams in the molding tool and connects the molded part and shell layer. After demolding, a composite part is provided which has a good-quality surface formed by the shell layer. A composite part of said type is preferably used for the connection of thermally insulated pipelines.
The invention relates to a corrugated, thermally insulated conduit for fluids, e.g. for district heating networks, wherein at least one medium pipe (2) made of plastic or metal is surrounded by a thermal insulation layer (14), consisting of a polyurethane foam for example. The corrugation (25, 26) of the outer jacket (15) made of plastic is formed such that both the corrugation valleys (25) and the corrugation peaks (26) are round, particularly circular. In addition, the corrugation is dimensioned such that the corrugation depth T lies in a range of 4.5 mm to 8 mm for a conduit outer diameter range of 63 mm to 202 mm. This shaping and dimensioning of the conduit results in very good flexibility and thus the ability to roll up the pipe for the transport thereof.
A coupling connection for corrugated pipes includes a coupling element, a support ring which is attachable in a positive fit against an inner wall face of the corrugated pipe, a first annular element which is axially fixable on a circumferential face of the corrugated pipe, a portion of the corrugated pipe being enclosed between the support ring and the first annular element and being fixable axially immovably, and an annular sealing chamber, enclosed circumferentially in a transition region between the support ring and the corrugated pipe, receiving a sealing element, on which a deformation force acts in a functional position which is fixable using a fixing element, including a second annular element, which circumferentially encloses the coupling element and is circumferentially attachable and movable in translation with respect thereto, the first annular element and the second annular element being arranged mutually coaxially.
F16L 15/04 - Screw-threaded jointsForms of screw-threads for such joints with additional sealings
F16L 15/08 - Screw-threaded jointsForms of screw-threads for such joints with supplementary elements
F16L 21/03 - Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings placed in the socket before connection
F16L 21/04 - Joints with sleeve or socket with elastic sealing rings between pipe and sleeve or between pipe and socket, e.g. with rolling or other prefabricated profiled rings in which sealing rings are compressed by axially-movable members
F16L 25/00 - Construction or details of pipe joints not provided for in, or of interest apart from, groups
F16L 33/26 - Arrangements for connecting hoses to rigid membersRigid hose-connectors, i.e. single members engaging both hoses specially adapted for hoses made of metal
The invention relates to a corrugated, thermally insulated conduit for fluids, e.g. for district heating networks, wherein at least one medium pipe (2) made of plastic or metal is surrounded by a thermal insulation layer (14), consisting of a polyurethane foam for example. The corrugation (25, 26) of the outer jacket (15) made of plastic is formed such that both the corrugation valleys (25) and the corrugation peaks (26) are round, particularly circular. In addition, the corrugation is dimensioned such that the corrugation depth T lies in a range of 4.5 mm to 8 mm for a conduit outer diameter range of 63 mm to 202 mm. This shaping and dimensioning of the conduit results in very good flexibility and thus the ability to roll up the pipe for the transport thereof.
The invention relates to an insulating device (1) for post-insulating the connection point of pipes (20), comprising at least two covering shells (2) which can be mounted side by side and which are intended to hold the pipes and are designed in such a manner that in the mounted state they surround the pipes to form an intermediate space (3) that can be filled with a foamed insulating material (22). Sealing elements (5) are provided at the entries for the pipes into the insulating device, wherein the sealing elements (5) are multi-part and comprise at least one annular first part (7) of hard plastics material and at least one second part (9) made of an elastomer. The second part (9) is configured in such a manner that it can act on the outer casing of the pipe (9) entering the insulating device. In this manner an improved seal of the insulating device can be achieved, in particular if the pipes are corrugated pipes.
F16L 59/16 - Arrangements specially adapted to local requirements at flanges, junctions, valves, or the like
F16J 15/02 - Sealings between relatively-stationary surfaces
F16L 55/175 - Devices for covering leaks in pipes or hoses, e.g. hose-menders from outside the pipe by using materials which fill a space around the pipe before hardening
24.
METHOD FOR CONNECTING A CONNECTION PIECE TO A THERMALLY INSULATED CONDUIT PIPE
In order to connect a connection piece (10), which is, for example, a pipe coupling or a mounting or a fitting, to a thermally insulated conduit pipe (1), a clamping sleeve (9) with an internal thread (8) is screwed in between the internal pipe (2) of the conduit pipe and the insulation layer (3) of said conduit pipe. A connection body (11) with a plug sleeve (13) is arranged in the internal pipe beforehand. The clamping sleeve (9) acts indirectly on the connection piece (10) by means of a retaining ring (14) in order to press said connection piece against the end face (5) of the internal pipe (2). In this way, the distance between the insulation layer (3) and the casing (4) of the conduit pipe is dispensed with and inaccuracies when cutting the conduit pipe to length can be compensated.
F16L 59/18 - Arrangements specially adapted to local requirements at flanges, junctions, valves, or the like adapted for joints
F16L 33/22 - Arrangements for connecting hoses to rigid membersRigid hose-connectors, i.e. single members engaging both hoses with means not mentioned in the preceding groups for gripping the hose between inner and outer parts
The invention relates to a heat exchanger (7), especially a plate exchanger (8), which is thermally coupled to a geothermal probe (6). The heat exchanger (7) comprises, for the purpose of condensation of a heat transfer medium evaporated in the geothermal probe (6) under the effect of geothermal heat, an inlet opening (16) through which the evaporated heat transfer medium can be supplied and an outlet opening (22) through which the heat transfer medium condensed in the heat exchanger (7) can be discharged, the heat transfer medium being discharged through a U tube (24) connected to the outlet opening (22) of the heat exchanger (7). The U tube (24) is arranged such that an apex section (25) of the U tube (24) is arranged in the direction of gravity (20) downstream of the outlet opening (22) of the heat exchanger (7) and downstream of a discharge opening (26) of the U tube (26). The lower edge (27) of the discharge opening (26) of the U tube (24) is arranged in the direction of gravity (20) downstream of the lower edge (28) of the outlet opening (22) of the heat exchanger (7). The design according to the invention allows a substantial improvement of the effectiveness or the efficiency of the heat exchanger (7).
F24J 3/08 - using geothermal heat (devices for producing mechanical power from geothermal energy F03G 4/00)
F25B 30/06 - Heat pumps characterised by the source of low potential heat
F28D 15/02 - Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls in which the medium condenses and evaporates, e.g. heat-pipes
The invention relates to a heat exchanger (7), especially a plate exchanger (8), which is thermally coupled to a geothermal probe (6). The heat exchanger (7) comprises, for the purpose of condensation of a heat transfer medium evaporated in the geothermal probe (6) under the effect of geothermal heat, an inlet through which the evaporated heat transfer medium can be supplied and an outlet through which the heat transfer medium condensed in the heat exchanger (7) can be discharged. The heat exchanger (7) has a single common connecting opening (17) for the supply of the evaporated heat transfer medium and for the discharge of the condensed heat transfer medium, said connecting opening being connected to the geothermal probe (6) via a conduit (12). The design of the heat exchanger (7) allows a very compact constructional unit which can be installed with little effort even if only little installation space is available.
F24J 3/08 - using geothermal heat (devices for producing mechanical power from geothermal energy F03G 4/00)
F25B 30/06 - Heat pumps characterised by the source of low potential heat
F28D 15/02 - Heat-exchange apparatus with the intermediate heat-transfer medium in closed tubes passing into or through the conduit walls in which the medium condenses and evaporates, e.g. heat-pipes
28.
Method and device for manufacturing a heat-insulated pipe
During the manufacturing of heat-insulated pipes (1) with an inner duct (3) and an outer duct (2) and a foamed insulation (14) arranged in between, the inner duct is placed on a tension member (10). The latter is tensioned between tensioning means by means of a tensile force, such that it runs straight and that the inner duct is held straight. The latter is held on centering elements (16, 17) which are spaced from one another in a defined way by means of spacers (18). In this straight position the inner duct may be surrounded with foam inside of the outer duct, without needing spacers between the ducts.
F16L 9/18 - Double-walled pipesMulti-channel pipes or pipe assemblies
F16L 9/14 - Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
B29C 65/00 - Joining of preformed partsApparatus therefor
B23P 19/02 - Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformationTools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
B25B 27/14 - Hand tools or bench devices, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for assembling objects other than by press fit or detaching same
B23Q 3/00 - Devices holding, supporting, or positioning, work or tools, of a kind normally removable from the machine
B23P 19/04 - Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformationTools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
B23P 19/00 - Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformationTools or devices therefor so far as not provided for in other classes
B23P 15/26 - Making specific metal objects by operations not covered by a single other subclass or a group in this subclass heat exchangers
For connecting a connecting piece (10), for example a tube coupling or an armature or a fitting, to a heat insulated conduit pipe (1), a calibration ring (9) of the connecting piece is driven between the inner pipe (2) of the conduit pipe and the insulating layer (3) thereof. Subsequently, a shell (11) is fastened in the inner pipe, for example by pressing the shell into the inner pipe. Thus, the removal of the insulating layer (3) and the shell (4) of the conduit pipe is not necessary.
When producing thermally insulated conduit pipes (1) having an inner pipe (3) and an outer pipe (2) and an interposed foamed insulation (14), the inner pipe is placed on a tension member (10). Said member is tensioned by way of tensile force between tensioning means such that it remains straight, whereby the inner pipe is also held in a straight manner. Said inner pipe is held on centering elements (16, 17), which are disposed at a defined distance from each other by spacers (18). In said straight held form, the inner pipe can be surrounded with foam in the outer pipe without requiring spacers between the pipes.
B29C 44/12 - Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
F16L 59/20 - Arrangements specially adapted to local requirements at flanges, junctions, valves, or the like adapted for joints for non-disconnectable joints
B29C 33/12 - Moulds or coresDetails thereof or accessories therefor with incorporated means for positioning inserts, e.g. labels
31.
METHOD FOR PRODUCING A THERMALLY INSULATED CONDUIT PIPE
A thermally insulated conduit pipe (22) is produced in that an inner pipe (2), onto which an outer pipe (13) has been extruded and which is enclosed by foam, is worked downstream of the extruder (12) with forming tools (16-21) in order to achieve deep undulation. This results in a conduit pipe having a small bending radius.
The covering device according to the present invention, preferably used for insulating the connecting points of tubes, comprising at least two covering shells (1, 2) which surround the tubes in the assembled state, at least one filling opening (17) for filling sealing material into an intermediate space between the covering device and the tubes, and at least one closure element (19) which is provided for insertion into the filling opening (17) in order to close off the filling opening (17) after the filling of the sealing material, is characterized in that the closure element (19) has a ventilation device (20), and the closure element (19) can be moved from a first position in the filling opening (17), in which the ventilation device (20) produces a continuous connection between the intermediate space and the space which surrounds the covering device at the outside, into a second position in the filling opening (17), in which the continuous connection is blocked.
F16L 59/04 - Arrangements using dry fillers, e.g. using slag wool
F16L 59/16 - Arrangements specially adapted to local requirements at flanges, junctions, valves, or the like
F16L 59/20 - Arrangements specially adapted to local requirements at flanges, junctions, valves, or the like adapted for joints for non-disconnectable joints
The invention relates to a covering device, preferably for post-isolating the connection point of pipes, in particular district heating pipes. Said device comprises at least two cover shells (1, 2) which surround the pipes in the mounted state, and at least one connection means (3) for connecting the cover shells (1,2). The connection means (3) comprise at least one substantially hook-shaped engaging section (4) that is provided for a positive fit connection, at least in parts, having at least one maintaining section (5) enabling the covering shells to be braced against one another. A sealing element (14) is arranged between the covering device and a pipe, in the mounted state, and surrounds the pipe.
F16L 21/06 - Joints with sleeve or socket with a divided sleeve or ring clamping around the pipe ends
F16L 59/04 - Arrangements using dry fillers, e.g. using slag wool
F16L 59/16 - Arrangements specially adapted to local requirements at flanges, junctions, valves, or the like
F16L 59/20 - Arrangements specially adapted to local requirements at flanges, junctions, valves, or the like adapted for joints for non-disconnectable joints
34.
COPOLYMERS OF POLYETHYLENE AS BARRIER LAYERS FOR HFOS
The invention relates to the use of special polymer layers as barriers, in particular as barrier layers in composite materials. Suitable polymers of the polymer layer are copolymers of ethylene and vinyl alcohol or of ethylene and carbon monoxide or of ethylene and carbon monoxide and propylene. These barrier layers exhibit a selective barrier effect with respect to different gases, wherein the barrier effect with respect to HFOs is especially good. Because of these properties, such barrier layers can positively influence the insulating and isolating properties, for example in thermally insulated pipes.
C08J 9/12 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent
C08J 9/14 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
35.
THERMALLY INSULATED MEDIUM PIPES HAVING HFO-CONTAINING CELL GAS
The invention relates to a thermally insulated conduit pipe (1), comprising at least one medium pipe (4), at least one heat insulation (3) arranged around the medium pipe, and at least one outer jacket (2) arranged around the heat insulation, wherein as an option, the outer jacket (2) comprises a barrier (9) made of plastic, and wherein the thermal insulation (3) comprises a foam material, the cell gas of which contains at least 10% by volume of HFOs. Such a conduit pipe has good insulating behavior, a good environmental balance, and can be produced in a simple manner.
B32B 5/20 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by features of a layer containing foamed or specifically porous material foamed in situ
B32B 15/08 - Layered products essentially comprising metal comprising metal as the main or only constituent of a layer, next to another layer of a specific substance of synthetic resin
B32B 27/08 - Layered products essentially comprising synthetic resin as the main or only constituent of a layer next to another layer of a specific substance of synthetic resin of a different kind
B32B 27/24 - Layered products essentially comprising synthetic resin characterised by the use of special additives using solvents or swelling agents
C08J 9/14 - Working-up of macromolecular substances to porous or cellular articles or materialsAfter-treatment thereof using blowing gases generated by a previously added blowing agent by a physical blowing agent organic
F16L 59/02 - Shape or form of insulating materials, with or without coverings integral with the insulating materials
F16L 59/14 - Arrangements for the insulation of pipes or pipe systems
F16L 59/153 - Arrangements for the insulation of pipes or pipe systems for flexible pipes
The invention relates to a connection system (1) for corrugated pipes (2), which is equipped with a connection element (3) for a connection (not shown) to for example a stationary element. The connection element (3) is connected as one piece to a support ring (4), which is formed by a section of the connection element (3) equipped with an outer thread (5). This section forming the support ring (4) contacts interlocking against an inner wall surface (6) of corrugated pipe (2), in that this section is screwed into corrugated pipe (2). A first ring element (9), equipped with a corresponding inner thread (8) is fixed on a circumferential surface (7) of corrugated pipe (2), wherein an end section of corrugated pipe (2) is enclosed between the support ring (4) and the first ring element (9) and thereby fixed in place. In addition, an annular sealing chamber (10), which receives a sealing element (11), is provided on the connection system (1) in a transition region on the circumferential side between the support ring (4) and the corrugated pipe (2). In that the ring elements (9, 12) are translationally moveable relative to each other along a sliding guide formed by the contact region, the sealing element (11) in sealing chamber (12) is compressed by means of the surfaces (15, 16) of the two ring elements (9, 12) inclined toward each other and the desired sealing is achieved.
F16L 11/15 - Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics corrugated
F16L 19/00 - Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on, or into, one of the joint parts
37.
METHOD AND DEVICE FOR MANUFACTURING A THERMALLY INSULATED PIPE
The invention relates to a method for continuously producing a heat-insulated corrugated conduit pipe (1) comprising at least one inner pipe (2). A corrugated outer casing of the conduit pipe is first produced using an extruder (27) and a corrugator (28), and the inner pipe arranged in a film tube together with a foam-forming starting material is guided into the corrugator, in which the previously corrugated outer casing of the conduit pipe is filled with the heat-insulating foam. The device (10) provided for carrying out the method has a protective pipe (26), by means of which the inner pipe surrounded by the film tube can be guided into the corrugator in a separate manner from the extrusion and corrugation process of the outer casing.
