CN106287046A - A kind of highly pressurised liquid two way seal pipe joint - Google Patents
A kind of highly pressurised liquid two way seal pipe joint Download PDFInfo
- Publication number
- CN106287046A CN106287046A CN201610944069.9A CN201610944069A CN106287046A CN 106287046 A CN106287046 A CN 106287046A CN 201610944069 A CN201610944069 A CN 201610944069A CN 106287046 A CN106287046 A CN 106287046A
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- CN
- China
- Prior art keywords
- fittings body
- pipeline
- piston ring
- pipe joint
- working cavity
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- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L21/00—Joints with sleeve or socket
- F16L21/02—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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Joints With Pressure Members (AREA)
Abstract
The present invention relates to a kind of highly pressurised liquid two way seal pipe joint, be used for sealing pipeline and connect.Described pipe joint is mainly made up of fittings body, piston ring and sealing ring；Described fittings body is symmetrical structure, there is the screw thread being connected with pipeline at its two ends, intermediate symmetry arranges two annular working cavity volumes, and fittings body inwall circumferencial direction is uniformly distributed several fluid inlet channel, and annular working cavity volume the most symmetrical with two while of ensureing each intake channel communicates；Described piston ring symmetry is assemblied in two annular working cavity volumes of fittings body, and its one end, cross section is circular arc；Described sealing ring is symmetrically mounted on annular working cavity volume two ends, and sealing ring arc surface side keeps contacting with piston ring circular arc end face side.The pipe joint structure that the present invention proposes advantageously reduces the leakage in high pressure down pipe road, improves the reliability that pipeline connects simultaneously.
Description
Technical field
The present invention relates to seal technical field of pipeline connection, particularly relate to a kind of highly pressurised liquid two way seal pipe joint.
Background technology
Different according to purposes, pipeline can be divided into petroleum pipeline, conduit under fluid pressure and water supply pipe etc., and Pipe installing is arranged
Time, it is both needed to be attached the pipeline of different length, at present, pipe joint is most widely used parts in pipeline connection technology.
Pipe joint form is varied, and the most commonly used is ring flange and screw-type connection, and whether ring flange connects
Or threaded, its purpose is all to increase the end face pretightning force to sealing ring to realize seal for pipe joints.Due to flange bolt and
Connection screw thread is when bearing heavily stressed for a long time, and sealing ring only works under initial pretightning force effect, and neither one continued compensation
Power keeps sealing state, causes pipe joint the phenomenon that gets loose easily occur, so generally there is leakage problem in current pipe joint,
Particularly under environment under high pressure, leakage is serious.And, pipe seal many employings one-way sealing form, only lean between i.e. two pipelines
Seal at connecting end surface one, so can increase the frequency that leakage occurs, seldom have and two pipelines are sealed respectively
Form occurs.
Summary of the invention
The purpose of the present invention is exactly to solve the problem in above-mentioned technology, proposes a kind of highly pressurised liquid two way seal pipeline and connects
Head, utilizes the piston ring of cavity volume in fittings body, special modality and floating to realize the continued compensation extruding force to sealing ring, sets simultaneously
Put bi-directional symmetrical ring structure, realize reducing pipeline and connect leakage problem.
For achieving the above object, can be achieved through the following technical solutions, accompanying drawings is as follows:
A kind of highly pressurised liquid two way seal pipe joint, is mainly made up of fittings body (3), piston ring (2) and sealing ring (4), institute
The fittings body (3) stated is symmetrical structure, and there is the screw thread (b) being connected with pipeline (1) at its two ends, and intermediate symmetry arranges two annular works
Make cavity volume (c), fittings body (3) inwall circumferencial direction is uniformly distributed several fluid inlet channel (a), and ensures each import
Annular working cavity volume (c) the most symmetrical with two while of passage (a) communicates；Described piston ring (2) symmetry is assemblied in fittings body (3)
Two annular working cavity volume (c) in, pipeline connect time can slide axially in working volumes (c), its one end, cross section is
Circular arc；Described sealing ring (4) is symmetrically mounted on annular working cavity volume (c) two ends, and sealing ring (4) arc surface side and work
Plug ring (2) circular arc end face side keeps contact.
During low pressure, described piston ring (2) compresses axially under power effect at sealing ring (4) and pipeline (1), its perpendicular end surface
Contact with fittings body (3) shaft shoulder；During high pressure, described piston ring (2) is under fluid pressure effect, and its arc end faces out extruding
Sealing ring (4).
Described fluid inlet channel (a) number is generally 6 ~ 10.
The present invention proposes a kind of highly pressurised liquid two way seal pipe joint, and this pipe joint has following advantages:
Automatically the sealing property connecting pipeline is improved.The present invention time fluid pressure is the highest in pipeline, relies on pipeline end face and cuts
Face is that piston ring is expressed to the axial shoulder of fittings body by the sealing ring of arc-shaped, it is achieved initial pretension sealing force.When liquid in pipeline
When body is high pressure, liquid is entered in piston ring working volumes by the intake channel in fittings body, and highly pressurised liquid acts on work
Plug ring side, makes piston ring press to sealing ring, reaches the purpose of continued compensation seal pressure, and compensate pressure can be along with liquid
Pressure raises and increases, it is achieved automatically improve the purpose of seal for pipe joints performance.
The symmetrical structure that seals can improve the reliability that pipeline connects.Present tube joint is designed as symmetrical sealing structure, makes
Two pipeline end faces keep high pressure sealing state simultaneously, can improve the ability of pipeline opposing shock and vibration, thus reach to carry
The purpose of high pipeline sealing reliability.
Accompanying drawing explanation
Fig. 1 is the assembling schematic diagram of inventive pipeline joint.
Fig. 2 is inventive pipeline joint body schematic diagram.
Fig. 3 is inventive pipeline joint work schematic sectional representation.
Fig. 4 is inventive piston ring 2 schematic diagram.
1. pipeline in accompanying drawing；2. piston ring；3. fittings body；4. sealing ring；
A. fluid inlet channel；B. screw thread is connected；C. piston ring working volumes.
Detailed description of the invention
Further illustrate particular content and the embodiment of the present invention below in conjunction with the accompanying drawings.
As illustrated in fig. 1 and 2, a kind of highly pressurised liquid two way seal pipe joint, mainly by fittings body (3), piston ring (2) and
Sealing ring (4) forms, and described fittings body (3) is symmetrical structure, and there is the screw thread (b) being connected with pipeline (1) at its two ends, middle right
Claim to arrange two annular working cavity volume (c), fittings body (3) inwall circumferencial direction is uniformly distributed several fluid inlet channel
(a), and ensure that simultaneously the most symmetrical with two annular working cavity volume (c) of each intake channel (a) communicates；Described piston ring (2)
Symmetry is assemblied in two annular working cavity volume (c) of fittings body (3), and pipeline can do axle when connecting in working volumes (c)
To slip, its one end, cross section is circular arc；Described sealing ring (4) is symmetrically mounted on annular working cavity volume (c) two ends, and seals
Circle (4) arc surface side keeps contacting with piston ring (2) circular arc end face side.
During low pressure, described piston ring (2) compresses axially under power effect at sealing ring (4) and pipeline (1), its perpendicular end surface
Contact with fittings body (3) shaft shoulder；During high pressure, described piston ring (2) is under fluid pressure effect, and its arc end faces out extruding
Sealing ring (4).
For ensureing that fittings body (3) has enough intensity, the most beneficially highly pressurised liquid to enter into piston ring working volumes smoothly
C, in (), described fluid inlet channel (a) number is generally 6 ~ 10.
As shown in Figures 3 and 4, the present invention time fluid pressure is relatively low in pipeline (1), relies on pipeline (1) end face and sealing ring
(4) piston ring (2) being expressed to the axial shoulder of fittings body (3), it is achieved initial pretension sealing force, now sealing state is with common
Flange is identical with threaded.When in pipeline (1), liquid is high pressure, liquid is entered by the intake channel (a) in fittings body (3)
Entering in piston ring working volumes (c), highly pressurised liquid acts on piston ring (2) side, makes piston ring (2) crush seal circle (4),
Reach the purpose of continued compensation seal pressure, and compensate pressure and can raise along with fluid pressure and increase, it is achieved automatically improve
The purpose of seal for pipe joints performance.Present tube joint is designed as symmetrical sealing structure, makes two pipeline (1) end faces keep high simultaneously
Means of press seals state, can improve the ability of pipeline (1) opposing shock and vibration, thus reach to improve the purpose of sealing reliability.
Present configuration can also be used for end cover, and the sealing passage being arranged symmetrically with in fittings body is designed as one-way sealing
Structure, can reduce end cover leakage.
Above-described embodiment is merely to illustrate the present invention, and the structure of the most each parts, connected mode etc. are all to have become
Change, every equivalents carried out on the basis of technical solution of the present invention and improvement, the most should not get rid of the guarantor in the present invention
Protect outside scope.
Claims (3)
1. a highly pressurised liquid two way seal pipe joint, is mainly made up of fittings body (3), piston ring (2) and sealing ring (4),
It is characterized in that: described fittings body (3) is symmetrical structure, and there are the screw thread (b) being connected with pipeline (1), intermediate symmetry in its two ends
Arrange two annular working cavity volume (c), fittings body (3) inwall circumferencial direction be uniformly distributed several fluid inlet channel (a),
And annular working cavity volume (c) the most symmetrical with two communicates the while of ensureing each intake channel (a)；Described piston ring (2) is symmetrical
Being assemblied in two annular working cavity volume (c) of fittings body (3), pipeline can do the most sliding in working volumes (c) when connecting
Dynamic, its one end, cross section is circular arc；Described sealing ring (4) is symmetrically mounted on annular working cavity volume (c) two ends, and sealing ring
(4) arc surface side keeps contacting with piston ring (2) circular arc end face side.
A kind of highly pressurised liquid two way seal pipe joint the most according to claim 1, it is characterised in that: during low pressure, described
Piston ring (2) under sealing ring (4) and pipeline (1) compress axially power effect, its perpendicular end surface connects with fittings body (3) shaft shoulder
Touch；During high pressure, described piston ring (2) is under fluid pressure effect, and its arc end faces out crush seal circle (4).
A kind of highly pressurised liquid two way seal pipe joint the most according to claim 1, it is characterised in that: described liquid enters
Mouth passage (a) number is generally 6 ~ 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610944069.9A CN106287046B (en) | 2016-11-02 | 2016-11-02 | A kind of highly pressurised liquid two way seal pipe joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610944069.9A CN106287046B (en) | 2016-11-02 | 2016-11-02 | A kind of highly pressurised liquid two way seal pipe joint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106287046A true CN106287046A (en) | 2017-01-04 |
| CN106287046B CN106287046B (en) | 2018-05-29 |
Family
ID=57719545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610944069.9A Expired - Fee Related CN106287046B (en) | 2016-11-02 | 2016-11-02 | A kind of highly pressurised liquid two way seal pipe joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106287046B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021134988A1 (en) * | 2019-12-30 | 2021-07-08 | 长江南京航道工程局 | Bidirectional sealing apparatus for shipside suction port of trailing suction hopper dredger |
| CN113431977A (en) * | 2021-07-31 | 2021-09-24 | 江苏正泰不锈钢产业有限公司 | Metal elbow joint |
| CN114811220A (en) * | 2021-01-29 | 2022-07-29 | 中国石油天然气集团有限公司 | Pipeline connecting structure |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1107327A (en) * | 1913-10-21 | 1914-08-18 | Fitz James Lewis | Pipe-coupling. |
| CN85205332U (en) * | 1985-12-02 | 1987-01-14 | 王家山 | Expanding section of pipeline sealed by the static pressure of fluid flowing in the pipeline |
| SE467423B (en) * | 1990-02-15 | 1992-07-13 | Flygt Ab Itt | Arrangement for sealing off two tubular coupling parts between a submersible pump assembly and an outlet line |
| DE19949880A1 (en) * | 1999-10-15 | 2001-04-19 | Fischer Georg Rohrleitung | Arrangement to seal pipelines; has rotationally symmetrical flexible seal arranged in groove in wall of inner pipeline facing outer pipeline, having sealing areas joined by connection area |
| CN101440902A (en) * | 2007-11-20 | 2009-05-27 | 中国船舶重工集团公司第七一○研究所 | Reverse water pressure seal pipeline joint |
| CN202327418U (en) * | 2011-12-01 | 2012-07-11 | 孟祥勇 | Pipe union |
| CN103542219A (en) * | 2013-09-25 | 2014-01-29 | 沈阳建筑大学 | Self-operated sealing sleeve compensator |
| CN206191105U (en) * | 2016-11-02 | 2017-05-24 | 海南大学 | Highly pressurised liquid two way seal pipe joint |
-
2016
- 2016-11-02 CN CN201610944069.9A patent/CN106287046B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1107327A (en) * | 1913-10-21 | 1914-08-18 | Fitz James Lewis | Pipe-coupling. |
| CN85205332U (en) * | 1985-12-02 | 1987-01-14 | 王家山 | Expanding section of pipeline sealed by the static pressure of fluid flowing in the pipeline |
| SE467423B (en) * | 1990-02-15 | 1992-07-13 | Flygt Ab Itt | Arrangement for sealing off two tubular coupling parts between a submersible pump assembly and an outlet line |
| DE19949880A1 (en) * | 1999-10-15 | 2001-04-19 | Fischer Georg Rohrleitung | Arrangement to seal pipelines; has rotationally symmetrical flexible seal arranged in groove in wall of inner pipeline facing outer pipeline, having sealing areas joined by connection area |
| CN101440902A (en) * | 2007-11-20 | 2009-05-27 | 中国船舶重工集团公司第七一○研究所 | Reverse water pressure seal pipeline joint |
| CN202327418U (en) * | 2011-12-01 | 2012-07-11 | 孟祥勇 | Pipe union |
| CN103542219A (en) * | 2013-09-25 | 2014-01-29 | 沈阳建筑大学 | Self-operated sealing sleeve compensator |
| CN206191105U (en) * | 2016-11-02 | 2017-05-24 | 海南大学 | Highly pressurised liquid two way seal pipe joint |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021134988A1 (en) * | 2019-12-30 | 2021-07-08 | 长江南京航道工程局 | Bidirectional sealing apparatus for shipside suction port of trailing suction hopper dredger |
| CN114811220A (en) * | 2021-01-29 | 2022-07-29 | 中国石油天然气集团有限公司 | Pipeline connecting structure |
| CN113431977A (en) * | 2021-07-31 | 2021-09-24 | 江苏正泰不锈钢产业有限公司 | Metal elbow joint |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106287046B (en) | 2018-05-29 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20180529 Termination date: 20211102 |