CN219933272U - Gas drainage pipe for coal mine - Google Patents
Gas drainage pipe for coal mine Download PDFInfo
- Publication number
- CN219933272U CN219933272U CN202320662579.2U CN202320662579U CN219933272U CN 219933272 U CN219933272 U CN 219933272U CN 202320662579 U CN202320662579 U CN 202320662579U CN 219933272 U CN219933272 U CN 219933272U
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- Prior art keywords
- pipe body
- gas drainage
- pipe
- utility
- model
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- 239000003245 coal Substances 0.000 title claims abstract description 18
- 238000007789 sealing Methods 0.000 claims description 38
- 239000003822 epoxy resin Substances 0.000 claims description 7
- 229920000647 polyepoxide Polymers 0.000 claims description 7
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910000746 Structural steel Inorganic materials 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- 239000010960 cold rolled steel Substances 0.000 claims description 4
- 239000002131 composite material Substances 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 16
- 230000000694 effects Effects 0.000 description 10
- 239000000463 material Substances 0.000 description 6
- 238000005260 corrosion Methods 0.000 description 5
- 210000001503 joint Anatomy 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005489 elastic deformation Effects 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The utility model provides a gas drainage pipe for a coal mine, and relates to the field of pipelines for the coal mine. Comprises a pipe body and connecting structures arranged at two ends of the pipe body; the outer side wall of the pipe body is wound with a spiral structure; above-mentioned connection structure includes the ring flange, and above-mentioned ring flange is provided with seal structure, and its installation is convenient, and the leakproofness is better.
Description
Technical Field
The utility model relates to the field of pipelines for coal mines, in particular to a gas drainage pipe for coal mines.
Background
The most common measure in the current coal mine production is to pump out the gas by using a special pipeline so as to ensure the safe operation of the mine. The gas extraction pipeline is a special pipeline for extracting gas in a coal mine. PE pipe is more commonly used in the prior art, and the PE pipe has larger weight and is inconvenient to install.
Patent document with publication number CN202360131U discloses a gas drainage pipe, including body, flange, bolt and nut, and its body outer wall skids easily when the installation, and when the installation, the installation effectiveness is lower, and the security is lower. The patent document with the publication number of CN209743793U discloses an inner flat wall outer ring type reinforced spiral welding composite gas drainage pipe, which comprises a pipe body, wherein two ends of the pipe body are provided with a fixed flange plate and a movable flange plate, the fixed flange plate is sealed through a sleeve, the movable flange plate can slide on the pipe body, and the sealing effect between the movable flange plate and the fixed flange plate is to be improved when two adjacent gas drainage pipes are in butt joint.
Disclosure of Invention
The utility model aims to provide a gas drainage pipe for a coal mine, which can solve the defects of the prior art, is convenient to install and has better sealing performance.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the gas drainage pipe for the coal mine comprises a pipe body and connecting structures arranged at two ends of the pipe body;
the outer side wall of the pipe body is wound with a spiral structure;
the connecting structure comprises a flange plate, and the flange plate is provided with a sealing structure.
Further, in the present utility model, the sealing structure includes a sealing ring fixedly provided to the flange, and the sealing ring is provided concentrically with the flange.
Further, in the present utility model, the number of the seal rings is plural, and the plural seal rings are concentrically arranged.
Further, in the present utility model, the thickness of the pipe body is 1.2 to 3mm.
Further, in the present utility model, the pitch of the spiral structure is 100 to 150mm.
Further, in the present utility model, the pipe body is made of one material of carbon structural steel cold rolled steel, stainless steel and stainless steel composite steel.
Further, in the present utility model, the surfaces of the pipe body and the connection structure are coated with an epoxy resin layer.
The utility model has at least the following advantages or beneficial effects:
1) The spiral structure arranged on the outer side wall of the pipe body can improve the ring rigidity and the negative pressure resistance strength of the pipe body, improve the strength of the pipe body, enable the pipe body to reduce more material weight on the premise of meeting production standards, enable the pipe body to be lighter and lower in installation strength, and on the other hand, the spiral structure can play an anti-slip role when workers install the gas drainage pipe, so that the installation safety of the gas drainage pipe is further improved, and the convenience of installation is effectively improved by matching with the light pipe body.
2) When two adjacent sealing rings are in butt joint installation, the two sealing rings which belong to different pipe bodies and are in butt joint with each other can be tightly attached to the other sealing ring by the rebound force generated by elastic deformation resistance when being extruded (the extrusion force is provided by the bolt connection on the flange plates of the adjacent pipe bodies), so that the sealing pressure is provided, the gas leakage is avoided, and the sealing rings are arranged on the flange plates, so that the sealing ring has better sealing effect and improves the sealing performance and the safety of gas transportation.
3) The epoxy resin layer arranged on the surfaces of the pipe body and the connecting structure increases the anti-corrosion effect of the pipe body, reduces the corrosion of the pipe body and prolongs the service life of the pipe body.
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 embodiments 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 a first embodiment of the present utility model;
FIG. 2 is a schematic diagram of a second embodiment of the present utility model;
FIG. 3 is a schematic diagram of a third embodiment of the present utility model;
FIG. 4 is an enlarged view of a portion of FIG. 3A in accordance with an embodiment of the present utility model;
fig. 5 is a partial cross-sectional view of a tubular body according to an embodiment of the present utility model.
Icon: 1. a tube body; 2. a spiral structure; 3. a flange plate; 4. a seal ring; 5. an epoxy resin layer.
Detailed Description
Examples
Referring to fig. 1-5, the present embodiment provides a gas drainage pipe for coal mine, which includes a pipe body 1 and connection structures disposed at two ends of the pipe body 1;
the outer side wall of the pipe body 1 is wound with a spiral structure 2;
the connecting structure comprises a flange plate 3, and the flange plate 3 is provided with a sealing structure.
In the utility model, the spiral structure 2 arranged on the outer side wall of the pipe body 1 can improve the ring rigidity and the negative pressure resistance of the pipe body 1, improve the strength of the pipe body 1, reduce more material weight of the pipe body 1 on the premise of meeting production standards, make the pipe body 1 lighter and lower the installation strength, and on the other hand, the spiral structure 2 can play an anti-slip role when a worker installs the utility model, further improve the installation safety of a gas drainage pipe, and effectively improve the installation convenience degree by matching with the light pipe body 1.
Further, in the present utility model, the seal structure includes a seal ring 4 fixedly provided to the flange 3, and the seal ring 4 is provided concentrically with the flange 3. The flange 3 and the pipe body 1 can be welded and fixed.
It is noted that the proportions of the various elements shown in the drawings have been exaggerated for clarity and may, of course, be modified as necessary and desirable.
When two adjacent sealing rings 4 which are mutually butted and belong to different pipe bodies 1 are in butt joint installation, when the two adjacent sealing rings 4 are extruded (the extrusion force provided when the flanges 3 of the adjacent pipe bodies 1 are in bolt connection), the two adjacent sealing rings are tightly jointed with the other sealing ring 4 through the rebound force generated by resisting elastic deformation, so that sealing pressure is provided, gas leakage is avoided, and the sealing rings 4 arranged on the flanges 3 have better sealing effect, and improve the sealing performance and safety of gas transportation.
Further, in the present utility model, the number of the seal rings 4 is plural, and the plural seal rings 4 are concentrically arranged.
In the above embodiment, the number of the seal rings 4 is plural, so that stability of the sealing effect is improved, and the condition that any processing defect of the seal ring 4 affects the sealing effect is avoided. Further, the sealing ring 4 is made of the same material as the pipe body 1.
Specifically, the number of the seal rings 4 is three or four.
Further, in the present utility model, the wall thickness of the pipe body 1 is 1.2 to 3mm.
Specifically, the wall thickness of the pipe body 1 was 3mm.
Further, in the present utility model, the pitch of the spiral structure 2 is 100 to 150mm.
Specifically, the pitch of the above-mentioned spiral structure 2 is 12mm.
Further, in the present utility model, the pipe body 1 is made of one material of carbon structural steel cold rolled steel, stainless steel and stainless steel composite steel.
Preferably, the pipe body 1 is made of a carbon structural steel cold-rolled steel strip, has high surface quality, is easy to coat with an anti-corrosion and anti-static coating, and has the advantages of higher strength, lower yield limit, good deep drawing performance and the like.
Further, in the present utility model, the surfaces of the pipe body 1 and the connection structure are coated with an epoxy resin layer 5.
In the above embodiment, the epoxy resin layer 5 provided on the surface of the pipe body 1 and the connection structure increases the anti-corrosion effect of the present utility model, reduces the rust of the pipe body 1, and increases the service life of the present utility model.
In summary, the embodiment of the utility model provides a gas drainage pipe for coal mines, which has at least the following technical effects:
1) The spiral structure 2 arranged on the outer side wall of the pipe body 1 can improve the ring rigidity and the negative pressure resistance of the pipe body 1 and improve the strength of the pipe body 1, so that the pipe body 1 can reduce more material weight on the premise of meeting production standards, the pipe body 1 is lighter, the installation strength is reduced, on the other hand, the design of the spiral structure 2 can play an anti-slip role when workers install the gas drainage pipe, the installation safety of the gas drainage pipe is further improved, and the convenience degree of installation is effectively improved by matching with the light pipe body 1.
2) When two adjacent sealing rings 4 which are mutually butted and belong to different pipe bodies 1 are in butt joint installation, when the two adjacent sealing rings 4 are extruded (the extrusion force provided when the flanges 3 of the adjacent pipe bodies 1 are in bolt connection), the two adjacent sealing rings are tightly jointed with the other sealing ring 4 through the rebound force generated by resisting elastic deformation, so that sealing pressure is provided, gas leakage is avoided, and the sealing rings 4 arranged on the flanges 3 have better sealing effect, and improve the sealing performance and safety of gas transportation.
3) The epoxy resin layer 5 arranged on the surfaces of the pipe body 1 and the connecting structure increases the anti-corrosion effect of the utility model, reduces the rust of the pipe body 1 and prolongs the service life of the utility model.
The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can 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 (6)
1. The gas drainage pipe for the coal mine is characterized by comprising a pipe body and connecting structures arranged at two ends of the pipe body;
the outer side wall of the pipe body is wound with a spiral structure;
the connecting structure comprises a flange plate, and the flange plate is provided with a sealing structure;
the sealing structure comprises a sealing ring fixedly arranged on the flange plate, and the sealing ring and the flange plate are concentrically arranged.
2. The gas drainage pipe for coal mine according to claim 1, wherein the number of the seal rings is plural, and the plural seal rings are concentrically arranged.
3. The gas drainage pipe for coal mines according to claim 1, wherein the wall thickness of the pipe body is 1.2-3 mm.
4. The gas drainage pipe for coal mines according to claim 1, wherein the pitch of the spiral structure is 100-150 mm.
5. The gas drainage tube for coal mines according to claim 1, wherein the tube body is made of one of carbon structural steel cold rolled steel, stainless steel and stainless steel composite steel.
6. The gas drainage tube for coal mines according to claim 5, wherein the surfaces of the tube body and the connecting structure are coated with an epoxy resin layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320662579.2U CN219933272U (en) | 2023-03-30 | 2023-03-30 | Gas drainage pipe for coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320662579.2U CN219933272U (en) | 2023-03-30 | 2023-03-30 | Gas drainage pipe for coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219933272U true CN219933272U (en) | 2023-10-31 |
Family
ID=88500018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320662579.2U Active CN219933272U (en) | 2023-03-30 | 2023-03-30 | Gas drainage pipe for coal mine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219933272U (en) |
-
2023
- 2023-03-30 CN CN202320662579.2U patent/CN219933272U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |