CN201462256U - Pipeline sealing device - Google Patents
Pipeline sealing device Download PDFInfo
- Publication number
- CN201462256U CN201462256U CN2009200812738U CN200920081273U CN201462256U CN 201462256 U CN201462256 U CN 201462256U CN 2009200812738 U CN2009200812738 U CN 2009200812738U CN 200920081273 U CN200920081273 U CN 200920081273U CN 201462256 U CN201462256 U CN 201462256U
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- Prior art keywords
- pipeline
- sealing
- seal
- arrangement according
- seal arrangement
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- Expired - Fee Related
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Abstract
The utility model discloses a pipeline sealing device which comprises a pipeline and a connecting piece, wherein the connecting piece is provided with a sealing groove, and a sealing step which is matched with the sealing groove is added at the end of the pipeline, is connected with the pipeline so as to form a whole body and forms a metal seal with the sealing groove; an annular groove is turned at the end of the pipeline, and a combination sealing ring formed by three sealing rings is installed at the end of the pipeline; and a section at the inner side of the sealing groove on the pipeline is in a truncated cone shape, threads are turned at the truncated cone shape part, and the pipeline is connected with the connecting piece through the threads. The pipeline and the connecting piece are reliably sealed through three sealing types of the threads, the sealing ring and the sealing step, and therefore, high pressure sealing can be realized, and the erosion damage can also not be caused when a fluid passes through the sealing. The device can be widely applied on petroleum pipeline blowout prevention and open flow products.
Description
Technical field
The utility model relates to a kind of pipeline seal arrangement.
Background technique
Link has traditional being threaded to be connected with FERRULETYPE with the conventional Placement of pipeline.Process simply though be threaded, the quality of processing and the installation quality of double thread all have high requirements, and therefore have a series of deficiencies: it is unreliable to seal, and efficient is very low, and up-to-standard rate is not high; Product in use screw thread is exposed in the endoporus, and corrosion easily takes place; Link box and pin thread end face do not touch, and the space is arranged, and fluid is through out-of-date easy formation eddy current, by erosion, and then may have influence on the reliability and the sealing of connection, cause immeasurable loss.And the FERRULETYPE connection is very high to the material and the suface processing quality requirement of pipeline, and cost is very high.
The model utility content
Technical problem to be solved in the utility model provides a kind of pipeline seal arrangement, realizes that by screw thread, seal ring and sealed step three seals form link is connected and sealing with the reliable of pipeline.
The technological scheme that the utility model adopted is:
A kind of pipeline seal arrangement comprises pipeline and link, it is characterized in that, has seal groove on the link, and pipe head increases the sealed step that is complementary with seal groove, and sealed step and pipeline are connected as a single entity.
The pipe head that is connected with sealed step has circular groove, and seal ring is installed on the circular groove.
Described pipeline is positioned at the circular groove inboard has one section to be frustoconic shape.
Described sealed step is columniform hollow tubular, and this hollow tubular external diameter is less than the pipe head external diameter, and internal diameter is greater than the pipe head internal diameter.
Described seal ring is the combined seal ring that 3 seal rings are formed.
Described pipeline frustoconic shape part car is shaped on screw thread, and link and pipeline are by being threaded.
Described round platform Outside diameter is less than pipe diameter, and the round platform end diameter is greater than the pipe head diameter.
Described link is the above valve member of flange, threeway or threeway.
Pipeline and link form screw thread, seal ring, sealed step three seals form by being threaded togather during use between pipeline and the link.
The beneficial effects of the utility model are:
Screw thread, seal ring and sealed step three seals form: seal ring is the combined seal ring that 3 seal rings are formed, and improves reliability, can realize high pressure sealing; After connection is linked closely, form metallic seal by sealed step with seal groove, avoid factors such as Sealing is aging, corrosion that sealing is exerted an influence; Simultaneously the inner radius at pipeline and link directly is connected transition, fluid by the time can not produce eddy current, can not cause erosion attack to pipeline end face and link box, sealing is reliable, safety.This device can be used in oil pipeline blowout prevention, the open flow product.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Mark and corresponding component title among the figure: 1-pipeline; The 2-seal ring; The 3-link; The 4-sealed step; The 5-screw thread.
Embodiment
Be example with flange as link below, further specify the utility model in conjunction with the accompanying drawings.
Pipeline 1 termination increases sealed step 4, sealed step 4 is columniform hollow tubular, and this hollow tubular external diameter is less than pipeline 1 termination external diameter, and internal diameter is greater than pipeline 1 termination internal diameter, have circular groove apart from sealed step 430mm position, 3 combined seal rings 2 that seal ring is combined into are installed on the circular groove; Pipeline 1 has one section to be frustoconic shape, frustoconic shape part car system male thread, corresponding site car system box thread on the flange 3 apart from the position of seal groove 40mm.
Pipeline 1 and flange 3 link together by screw thread 5 during installation, and sealed step 4 and seal groove are closely together the formation metallic seal.Form screw thread 5, seal ring 2, sealed step 4 three seals forms between flange 3 and the pipeline 1.
Claims (8)
1. pipeline seal arrangement, comprise pipeline (1) and link (3), it is characterized in that the last position that is connected with pipeline (1) of link (3) has seal groove, pipeline (1) termination increases the sealed step (4) that is complementary with seal groove, and sealed step (4) is connected as a single entity with pipeline (1).
2. pipeline seal arrangement according to claim 1 is characterized in that, the pipe head sidewall that is connected with sealed step (4) has circular groove, and seal ring (2) is installed on the circular groove.
3. pipeline seal arrangement according to claim 1 is characterized in that, described pipeline (1) is positioned at the circular groove inboard has one section to be frustoconic shape.
4. pipeline seal arrangement according to claim 1 is characterized in that, described sealed step (4) is columniform hollow tubular, and this hollow tubular external diameter is less than pipeline (1) termination external diameter, and internal diameter is greater than pipeline (1) termination internal diameter.
5. pipeline seal arrangement according to claim 2 is characterized in that, described seal ring (2) is the combined seal ring that 3 seal rings are formed.
6. pipeline seal arrangement according to claim 3 is characterized in that, described pipeline (1) frustoconic shape part car is shaped on screw thread, and link (3) and pipeline (1) are by being threaded.
7. pipeline seal arrangement according to claim 6 is characterized in that, described round platform Outside diameter is less than pipe diameter, and the round platform end diameter is greater than the pipe head diameter.
8. pipeline seal arrangement according to claim 1 is characterized in that, described link is the above valve member of flange, threeway or threeway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200812738U CN201462256U (en) | 2009-05-31 | 2009-05-31 | Pipeline sealing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200812738U CN201462256U (en) | 2009-05-31 | 2009-05-31 | Pipeline sealing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201462256U true CN201462256U (en) | 2010-05-12 |
Family
ID=42389609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200812738U Expired - Fee Related CN201462256U (en) | 2009-05-31 | 2009-05-31 | Pipeline sealing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201462256U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705607A (en) * | 2012-06-15 | 2012-10-03 | 无锡天惠塑机有限公司 | Large pump oil-out flange of oil pump motor |
| CN102734577A (en) * | 2012-06-19 | 2012-10-17 | 无锡宇吉科技有限公司 | Flange |
| CN102922443A (en) * | 2011-08-12 | 2013-02-13 | 成都科盛石油科技有限公司 | Directional connecting sleeve facilitating accurate installation of workpiece |
| CN104676154A (en) * | 2015-01-29 | 2015-06-03 | 江苏广通管业制造有限公司 | Novel vacuum flange for aviation |
| CN111898215A (en) * | 2020-07-07 | 2020-11-06 | 中国石油天然气集团有限公司 | Method for selecting special threaded oil casing sealing test sample |
| CN112688269A (en) * | 2020-11-23 | 2021-04-20 | 中国南方电网有限责任公司超高压输电公司广州局 | Multifunctional plugging connector special for oil-filled submarine cable |
-
2009
- 2009-05-31 CN CN2009200812738U patent/CN201462256U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102922443A (en) * | 2011-08-12 | 2013-02-13 | 成都科盛石油科技有限公司 | Directional connecting sleeve facilitating accurate installation of workpiece |
| CN102705607A (en) * | 2012-06-15 | 2012-10-03 | 无锡天惠塑机有限公司 | Large pump oil-out flange of oil pump motor |
| CN102734577A (en) * | 2012-06-19 | 2012-10-17 | 无锡宇吉科技有限公司 | Flange |
| CN104676154A (en) * | 2015-01-29 | 2015-06-03 | 江苏广通管业制造有限公司 | Novel vacuum flange for aviation |
| CN111898215A (en) * | 2020-07-07 | 2020-11-06 | 中国石油天然气集团有限公司 | Method for selecting special threaded oil casing sealing test sample |
| CN111898215B (en) * | 2020-07-07 | 2024-05-28 | 中国石油天然气集团有限公司 | Method for selecting special threaded oil sleeve sealing test sample |
| CN112688269A (en) * | 2020-11-23 | 2021-04-20 | 中国南方电网有限责任公司超高压输电公司广州局 | Multifunctional plugging connector special for oil-filled submarine cable |
| CN112688269B (en) * | 2020-11-23 | 2021-11-09 | 中国南方电网有限责任公司超高压输电公司广州局 | Multifunctional plugging connector special for oil-filled submarine cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20100531 |