CN2227778Y - Cross-linked polyethylene pipe joint - Google Patents
Cross-linked polyethylene pipe joint Download PDFInfo
- Publication number
- CN2227778Y CN2227778Y CN 95214818 CN95214818U CN2227778Y CN 2227778 Y CN2227778 Y CN 2227778Y CN 95214818 CN95214818 CN 95214818 CN 95214818 U CN95214818 U CN 95214818U CN 2227778 Y CN2227778 Y CN 2227778Y
- Authority
- CN
- China
- Prior art keywords
- threaded female
- female cover
- polyethylene pipe
- cross
- pipe joint
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 229920003020 cross-linked polyethylene Polymers 0.000 title claims abstract description 10
- 239000004703 cross-linked polyethylene Substances 0.000 title claims abstract description 10
- 238000009434 installation Methods 0.000 claims description 2
- 238000004642 transportation engineering Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000006353 environmental stress Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
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- Joints With Sleeves (AREA)
Abstract
The utility model belongs to the design of crosslinked polyethylene pipe joint. The utility model discloses a cross-linked polyethylene pipeline interface, by rubber seal, take the notched female interface that cover, external screw thread cover and gasket are constituteed, it is firm to have simple structure hookup, characteristics that the leakproofness is good. The connecting device can be widely used for connecting large-scale oil transportation engineering pipelines, and provides reliable guarantee for improving the oil transportation efficiency.
Description
The utility model belongs to the design of crosslinked polyethylene pipe interface.
Advantages such as crosslinked polyethylene pipe has the serviceability temperature height, and environmental stress cracking resistance and physical and mechanical properties are good can be widely used as hot water, Korrosionsmedium, and the conveyance conduit of oil and natural gas, but behind the polyethylene crosslinking, fluid mobility can be poor, and weldability is poor.Therefore, can only adopt the mechanical connection method.At present, the method that adopts is enlarging or flange lap joint flange formula linkage structure, behind the pipe end cover upper flange plate that is about to need to connect, places oil bath to heat, and enlarging while hot or flange, connect with the bolton on the flange plate then, this connection method is simple and practical, the voltage withstand class height, but enlarging or flange be difficulty, and, in enlarging or turn-up process,, local heating concentrates because of easily causing stress because of the needs oil bath makes the working strength increase.
The purpose of this utility model provides a kind of by rubber seal, has the interface of threaded female cover, external thread sleeve and the pad composition of groove, and this interface structure is simple, be connected firmly, and good airproof performance.
Embodiment accompanying drawings of the present utility model is as follows:
Accompanying drawing 1 is the schematic representation of crosslinked polyethylene pipe interface.
1 is the threaded female cover that has a groove among the figure, there is interior tilted conical surface at the two ends of threaded female cover, coincide with the rubber seal 2 that has outer tilted conical surface, during installation, successively pad 3, external thread sleeve 4 are enclosed within on the crosslinked polyethylene pipe along the outer wall of pipe, then, an end of the pipe that needs are connected inserts in the groove of threaded female cover, one end of another connecting tube is inserted in the threaded female cover the other end groove, and external thread sleeve 4 is threaded with 1 employing of threaded female cover behind pad 3, seal ring 2.When external thread sleeve and threaded female cover screwing, promote seal ring by pad, make the interior tilted conical surface tight connecting of its outer tilted conical surface and threaded female cover, and utilize the elasticity of rubber seal that the inner face of seal ring and the outer wall of pipe are sealed fully.Simultaneously, can also utilize the sealing of reinforcing seal ring and pipeline outer wall along the pressure fluid that oozes out between pipeline outer wall and threaded female cover inner face.
Claims (1)
1. crosslinked polyethylene pipe interface, it is characterized in that 1 is the threaded female cover that has a groove, there is interior tilted conical surface at the two ends of threaded female cover, coincide with the rubber seal 2 that has outer tilted conical surface, during installation, successively pad 3, external thread sleeve 4 are enclosed within on the crosslinked polyethylene pipe along the outer wall of pipe, then, one end of the pipe that needs are connected inserts in the groove of threaded female cover, one end of another connecting tube is inserted in the threaded female cover the other end groove, and external thread sleeve 4 is threaded with 1 employing of threaded female cover behind pad 3, seal ring 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95214818 CN2227778Y (en) | 1995-06-14 | 1995-06-14 | Cross-linked polyethylene pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95214818 CN2227778Y (en) | 1995-06-14 | 1995-06-14 | Cross-linked polyethylene pipe joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2227778Y true CN2227778Y (en) | 1996-05-22 |
Family
ID=33864332
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95214818 Expired - Fee Related CN2227778Y (en) | 1995-06-14 | 1995-06-14 | Cross-linked polyethylene pipe joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2227778Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101988611B (en) * | 2009-08-01 | 2012-12-26 | 泰州申视塑料有限公司 | Connection method of ultrahigh molecular weight polyethylene pipelines |
| CN110332388A (en) * | 2019-06-28 | 2019-10-15 | 含山县兴达球墨铸铁厂 | A kind of interface sealing structure of T-type ductile iron pipe |
| CN111322471A (en) * | 2020-04-10 | 2020-06-23 | 广东华坤建设集团有限公司 | Assembly for splicing underwater immersed tube and using method thereof |
| WO2020233336A1 (en) * | 2019-05-17 | 2020-11-26 | 杭州科百特过滤器材有限公司 | Sealed conduit connector |
-
1995
- 1995-06-14 CN CN 95214818 patent/CN2227778Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101988611B (en) * | 2009-08-01 | 2012-12-26 | 泰州申视塑料有限公司 | Connection method of ultrahigh molecular weight polyethylene pipelines |
| WO2020233336A1 (en) * | 2019-05-17 | 2020-11-26 | 杭州科百特过滤器材有限公司 | Sealed conduit connector |
| CN110332388A (en) * | 2019-06-28 | 2019-10-15 | 含山县兴达球墨铸铁厂 | A kind of interface sealing structure of T-type ductile iron pipe |
| CN111322471A (en) * | 2020-04-10 | 2020-06-23 | 广东华坤建设集团有限公司 | Assembly for splicing underwater immersed tube and using method thereof |
| CN111322471B (en) * | 2020-04-10 | 2024-06-25 | 广东华坤建设集团有限公司 | Assembly for splicing underwater immersed tube and application method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |