CN219453148U - Plug-in type inner epoxy coating and outer PE composite steel pipe - Google Patents
Plug-in type inner epoxy coating and outer PE composite steel pipe Download PDFInfo
- Publication number
- CN219453148U CN219453148U CN202320194130.8U CN202320194130U CN219453148U CN 219453148 U CN219453148 U CN 219453148U CN 202320194130 U CN202320194130 U CN 202320194130U CN 219453148 U CN219453148 U CN 219453148U
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- Prior art keywords
- plug
- pipe
- composite
- sleeve
- steel pipe
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 68
- 239000010959 steel Substances 0.000 title claims abstract description 68
- 239000002131 composite material Substances 0.000 title claims abstract description 63
- 229920006334 epoxy coating Polymers 0.000 title claims abstract description 8
- 238000007789 sealing Methods 0.000 claims abstract description 46
- 239000004698 Polyethylene Substances 0.000 claims abstract description 44
- 239000011248 coating agent Substances 0.000 claims abstract description 31
- 238000000576 coating method Methods 0.000 claims abstract description 31
- 239000004593 Epoxy Substances 0.000 claims abstract description 25
- -1 polyethylene Polymers 0.000 claims abstract description 13
- 229920000573 polyethylene Polymers 0.000 claims abstract description 13
- 239000010410 layer Substances 0.000 claims description 42
- 238000009413 insulation Methods 0.000 claims description 12
- 239000003822 epoxy resin Substances 0.000 claims description 10
- 229920000647 polyepoxide Polymers 0.000 claims description 10
- 239000012790 adhesive layer Substances 0.000 claims description 7
- 150000001875 compounds Chemical class 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/20—Controlling water pollution; Waste water treatment
Landscapes
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model provides a plug-in type inner-coating epoxy outer PE composite steel pipe, and belongs to the technical field of composite steel pipes. The plug-in type inner epoxy coating outer PE composite steel pipe comprises a pipeline assembly and a connecting structure; the pipeline assembly comprises a composite pipe and a plug connector, wherein the plug connector comprises a plug pipe and a sleeve, and the plug pipe and the sleeve are respectively fixed at two ends of the composite pipe; the connecting structure comprises a connecting piece and a sealing piece, wherein the connecting piece is positioned on the composite pipe and the sleeve, the sealing piece comprises a first sealing ring, a second sealing ring and a sealing sleeve, the first sealing ring is sleeved outside the plug pipe, the second sealing ring is installed inside the sleeve, and the sealing sleeve is fixed on the inner wall of the sleeve. The composite tube includes an epoxy coating and a polyethylene layer. The inner diameters of the two connected steel pipes are the same, so that the flow velocity difference can be generated, and the phenomenon of flow velocity error can be avoided when the pipeline is used.
Description
Technical Field
The utility model relates to the technical field of composite steel pipes, in particular to a plug-in type inner-coating epoxy outer PE composite steel pipe.
Background
The inner epoxy outer polyethylene corrosion-resistant steel pipe is a novel steel-plastic composite pipe, which consists of a steel pipe base material, an epoxy resin inner coating and a polyethylene outer coating, and has excellent mechanical property and corrosion resistance and ageing resistance. The method is widely applied to various industries such as water conservancy, electric power, chemical industry, petroleum and the like.
Chinese patent No. CN215806795U provides a 3PE composite steel pipe, including the first steel pipe body and the second steel pipe body, the second steel pipe body has been cup jointed to the internal surface of first steel pipe body, the first steel pipe body passes through metal binder layer fixed connection in the second steel pipe body, the first steel pipe body cooperatees under with the second steel pipe body after the assembly, fastening hoop is provided with down, fastening hoop and the equal fixedly connected with hangers of tip of fastening hoop down, the hangers has positioning screw through first internal thread threaded connection, positioning screw below fixedly connected with guide arm, fixedly connected with inserts the ground screw under the fastening hoop, and this 3PE composite steel pipe has can be buried deeply in the position of underground steel pipe by fixed, can not lead to the steel pipe to take place the displacement because of the unstable pressure that causes of medium flows in the pipeline, guarantees that the junction of two steel pipes has good joint strength and leakproofness, can not cause the medium to reveal at the steel pipe junction.
In the above patent, although the joint of two steel pipes is guaranteed to have good joint strength and sealing performance, medium leakage at the joint of the steel pipes is avoided, but because the diameters of the two connected steel pipes are different, flow velocity difference can be generated, and flow velocity error can occur when the pipeline is used.
Disclosure of Invention
In order to make up for the defects, the utility model provides a plug-in type inner-coating epoxy outer PE composite steel pipe, which aims to improve the problems that flow speed difference can be generated due to different diameters of two connected steel pipes and flow speed error can occur when a pipeline is used.
The utility model is realized in the following way:
the utility model provides a plug-in type inner epoxy coating outer PE composite steel pipe, which comprises a pipeline assembly and a connecting structure.
The pipeline assembly comprises a composite pipe and a plug connector, wherein the plug connector comprises a plug pipe and a sleeve, and the plug pipe and the sleeve are respectively fixed at two ends of the composite pipe; the connecting structure comprises a connecting piece and a sealing piece, wherein the connecting piece is positioned on the composite pipe and the sleeve, the sealing piece comprises a first sealing ring, a second sealing ring and a sealing sleeve, the first sealing ring is sleeved outside the plug pipe, the second sealing ring is installed inside the sleeve, and the sealing sleeve is fixed on the inner wall of the sleeve.
In one embodiment of the utility model, the composite pipe comprises an epoxy resin coating and a polyethylene layer, wherein the inner wall of the epoxy resin coating is provided with a heat-insulating layer, and the inner wall of the heat-insulating layer is provided with an adhesive layer.
In one embodiment of the utility model, the adhesive layer is arranged on the outer layer of the polyethylene layer, an inner steel pipe is arranged on the inner wall of the polyethylene layer, and a wear-resistant layer I is arranged on the inner wall of the inner steel pipe.
In one embodiment of the utility model, a sound insulation layer is arranged outside the epoxy resin coating, an outer steel pipe is arranged outside the sound insulation layer, and a wear-resistant layer II is arranged outside the outer steel pipe.
In one embodiment of the utility model, the connector comprises a first flange and a second flange, which are welded to the outside of the composite pipe and sleeve, respectively.
In one embodiment of the utility model, a first connecting hole is formed in one side of the first flange plate, and a second connecting hole is formed in one side of the second flange plate.
In one embodiment of the utility model, one side of the first flange plate and one side of the second flange plate are respectively provided with an inclined rib plate, and the other side of the inclined rib plate is welded on the composite pipe.
The beneficial effects of the utility model are as follows: according to the plug-in type inner epoxy outer PE composite steel pipe obtained through the design, when the plug-in type inner epoxy outer PE composite steel pipe is used, the plug-in pipe in the plug-in connector is matched with the sleeve to facilitate connection between the two inner epoxy outer PE composite steel pipes, and as the inner diameter of the sleeve is matched with the outer diameter of the plug-in pipe, the inner diameter of the plug-in pipe is identical with the inner diameter of the composite pipe when the plug-in pipe is plugged in the sleeve, the phenomenon of flow velocity error during pipeline use is avoided, and the sealing piece is adopted, the sealing ring I, the sealing ring II and the sealing sleeve in the sealing piece can improve the tightness of connection between the two inner epoxy outer PE composite steel pipes, so that the connection position between the two inner epoxy outer PE composite steel pipes is avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of the overall structure of a plug-in type inner-coating epoxy outer PE composite steel pipe provided by an embodiment of the utility model;
fig. 2 is a schematic diagram of an end structure of a plug-in type inner-coating epoxy outer-PE composite steel pipe according to an embodiment of the present utility model;
FIG. 3 is a schematic diagram II of an end structure of a plug-in type inner-coating epoxy outer PE composite steel pipe provided by an embodiment of the utility model;
fig. 4 is a schematic diagram of an inner layer structure of a plug-in type inner-coating epoxy outer PE composite steel pipe according to an embodiment of the utility model.
In the figure: 100-piping assembly; 110-a composite tube; a 111-epoxy coating; 112-an insulating layer; 113-an adhesive layer; 114-a polyethylene layer; 115-inner steel tube; 116-first abrasion resistant layer; 117-sound insulation layer; 118-outer steel tube; 119-a second wear-resistant layer; 120-plug connectors; 121-an insertion tube; 122-sleeve; 200-connection structure; 210-a connector; 211-a first flange plate; 212-connecting hole I; 213-a second flange plate; 214-connecting hole II; 220-seals; 221-a first sealing ring; 222-a second sealing ring; 223-sealing sleeve; 230-diagonal rib.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.
Examples
Referring to fig. 1-4, the present utility model provides a technical solution: a plug-in type inner epoxy coating outer PE composite steel pipe comprises a pipeline assembly 100 and a connecting structure 200.
Referring to fig. 1-4, a pipe assembly 100 includes a composite pipe 110 and a plug connector 120, the plug connector 120 includes a plug pipe 121 and a sleeve 122, an inner diameter of the sleeve 122 is matched with an outer diameter of the plug pipe 121, the plug pipe 121 is matched with the sleeve 122 to facilitate connection between two PE composite steel pipes coated with epoxy and externally, the plug pipe 121 and the sleeve 122 are respectively fixed at two ends of the composite pipe 110, and when the plug pipe 121 is plugged in the sleeve 122, the inner diameter of the plug pipe 121 is identical to the inner diameter of the composite pipe 110, so that a flow velocity error phenomenon can be avoided when the pipe is used.
The composite pipe 110 comprises an epoxy resin coating 111 and a polyethylene layer 114, wherein an insulating layer 112 is arranged on the inner wall of the epoxy resin coating 111, the insulating layer 112 can ensure the temperature of liquid flowing in a pipeline, the change of external temperature is avoided, an adhesive layer 113 is arranged on the inner wall of the insulating layer 112, the adhesive layer 113 is arranged on the outer layer of the polyethylene layer 114, an inner steel pipe 115 is arranged on the inner wall of the polyethylene layer 114, a first wear-resistant layer 116 is arranged on the inner wall of the inner steel pipe 115, a sound insulation layer 117 is arranged on the outer part of the epoxy resin coating 111, the sound insulation layer 117 can reduce noise generated by the liquid flowing in the pipeline, an outer steel pipe 118 is arranged on the outer part of the sound insulation layer 117, a second wear-resistant layer 119 is arranged on the outer part of the outer steel pipe 118, the wear resistance of the inside and outside of the pipeline can be increased, and the service life of the pipeline is prolonged.
Referring to fig. 1-3, the connection structure 200 includes a connection member 210 and a sealing member 220, the connection member 210 is located on the composite pipe 110 and the sleeve 122, the sealing member 220 includes a first sealing ring 221, a second sealing ring 222 and a sealing sleeve 223, the first sealing ring 221 is sleeved outside the plug pipe 121, the second sealing ring 222 is installed inside the sleeve 122, the sealing sleeve 223 is fixed on the inner wall of the sleeve 122, the sealing ring 221, the second sealing ring 222 and the sealing sleeve 223 in the sealing member 220 can improve the tightness of connection between two inner-coating epoxy-outer PE composite steel pipes, and the connection position between the two inner-coating epoxy-outer PE composite steel pipes is avoided.
The connecting piece 210 comprises a first flange 211 and a second flange 213, the first flange 211 and the second flange 213 are respectively welded outside the composite pipe 110 and the sleeve 122, one sides of the first flange 211 and the second flange 213 are respectively provided with a first connecting hole 212 and a second connecting hole 214, one sides of the first flange 211 and the second flange 213 are respectively provided with an inclined rib plate 230, the other sides of the inclined rib plates 230 are welded on the composite pipe 110, and the adoption of the inclined rib plates 230 can increase the stability of the connection of the first flange 211 and the second flange 213 with the composite pipe 110 and the sleeve 122 respectively.
Specifically, the working principle of the plug-in type inner-coating epoxy outer PE composite steel pipe is as follows: when the pipe is used, when two inner-coating epoxy outer PE composite steel pipes are connected, the plug pipe 121 is matched with the sleeve 122 so that the two inner-coating epoxy outer PE composite steel pipes are connected, because the inner diameter of the sleeve 122 is matched with the outer diameter of the plug pipe 121, when the plug pipe 121 is plugged in the sleeve 122, the inner diameter of the plug pipe 121 is the same as the inner diameter of the composite pipe 110, the phenomenon of flow velocity error can occur when the pipe is used, meanwhile, the sealing ring I221, the sealing ring II 222 and the sealing sleeve 223 can improve the tightness of connection between the two inner-coating epoxy outer PE composite steel pipes, the connection position between the two inner-coating epoxy outer PE composite steel pipes is avoided, the flange I211 and the flange II 213 are connected together through bolts, the adopted wear-resisting layer can increase the wear resistance of the inner and outer sides of the pipe, the service life of the pipe is prolonged, the adopted sound insulation layer 117 can reduce noise generated by liquid circulation of the inner pipe, the heat insulation layer 112 can ensure the liquid temperature of the pipe circulation, and the change of the outer temperature is avoided.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, and various modifications and variations may be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (7)
1. A plug-in type inner epoxy coating outer PE composite steel pipe is characterized by comprising
The pipeline assembly (100), the pipeline assembly (100) comprises a composite pipe (110) and a plug connector (120), the plug connector (120) comprises a plug pipe (121) and a sleeve (122), and the plug pipe (121) and the sleeve (122) are respectively fixed at two ends of the composite pipe (110);
connection structure (200), connection structure (200) include connecting piece (210) and sealing member (220), connecting piece (210) are located on compound pipe (110) and sleeve pipe (122), sealing member (220) are including sealing washer one (221), sealing washer two (222) and seal cover (223), sealing washer one (221) cup joints the outside of plug tube (121), sealing washer two (222) are installed the inside of sleeve pipe (122), seal cover (223) are fixed on the inner wall of sleeve pipe (122).
2. A plug-in type inner-coating epoxy outer-PE composite steel pipe according to claim 1, characterized in that the composite pipe (110) comprises an epoxy resin coating (111) and a polyethylene layer (114), an insulation layer (112) is arranged on the inner wall of the epoxy resin coating (111), and an adhesive layer (113) is arranged on the inner wall of the insulation layer (112).
3. A plug-in type inner-coating epoxy outer-PE composite steel pipe according to claim 2, characterized in that the adhesive layer (113) is arranged on the outer layer of the polyethylene layer (114), an inner steel pipe (115) is arranged on the inner wall of the polyethylene layer (114), and a wear-resistant layer I (116) is arranged on the inner wall of the inner steel pipe (115).
4. A plug-in type inner-coating epoxy outer-PE composite steel pipe according to claim 2, characterized in that an acoustic insulation layer (117) is arranged outside the epoxy resin coating (111), an outer steel pipe (118) is arranged outside the acoustic insulation layer (117), and a wear-resistant layer two (119) is arranged outside the outer steel pipe (118).
5. A plug-in type inner-coating epoxy outer-PE composite steel pipe according to claim 1, wherein the connecting piece (210) comprises a first flange plate (211) and a second flange plate (213), and the first flange plate (211) and the second flange plate (213) are welded outside the composite pipe (110) and the sleeve (122) respectively.
6. The plug-in type inner-coating epoxy outer PE composite steel pipe according to claim 5, wherein a first connecting hole (212) is formed in one side of the first flange plate (211), and a second connecting hole (214) is formed in one side of the second flange plate (213).
7. The plug-in type inner-coating epoxy outer PE composite steel pipe according to claim 5, wherein the first flange plate (211) and the second flange plate (213) are respectively provided with an inclined rib plate (230), and the other side of the inclined rib plate (230) is welded on the composite pipe (110).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320194130.8U CN219453148U (en) | 2023-02-13 | 2023-02-13 | Plug-in type inner epoxy coating and outer PE composite steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320194130.8U CN219453148U (en) | 2023-02-13 | 2023-02-13 | Plug-in type inner epoxy coating and outer PE composite steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219453148U true CN219453148U (en) | 2023-08-01 |
Family
ID=87409626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320194130.8U Active CN219453148U (en) | 2023-02-13 | 2023-02-13 | Plug-in type inner epoxy coating and outer PE composite steel pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219453148U (en) |
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2023
- 2023-02-13 CN CN202320194130.8U patent/CN219453148U/en active Active
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| GR01 | Patent grant | ||
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