CN116336271A - Mechanical connecting flange structure of underwater pipeline - Google Patents
Mechanical connecting flange structure of underwater pipeline Download PDFInfo
- Publication number
- CN116336271A CN116336271A CN202310602282.1A CN202310602282A CN116336271A CN 116336271 A CN116336271 A CN 116336271A CN 202310602282 A CN202310602282 A CN 202310602282A CN 116336271 A CN116336271 A CN 116336271A
- Authority
- CN
- China
- Prior art keywords
- ring
- sealing
- piston
- pipeline
- mechanical connection
- 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.)
- Granted
Links
- 238000007789 sealing Methods 0.000 claims abstract description 75
- 210000004907 gland Anatomy 0.000 claims abstract description 13
- 239000007788 liquid Substances 0.000 claims description 12
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
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
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/06—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends
- F16L19/065—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends the wedging action being effected by means of a ring
-
- 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
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
- F16L19/0206—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member the collar not being integral with the pipe
-
- 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
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/02—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member
- F16L19/0212—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member using specially adapted sealing means
- F16L19/0218—Pipe ends provided with collars or flanges, integral with the pipe or not, pressed together by a screwed member using specially adapted sealing means comprising only sealing rings
-
- 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
- F16L19/00—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts
- F16L19/06—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends
- F16L19/07—Joints in which sealing surfaces are pressed together by means of a member, e.g. a swivel nut, screwed on or into one of the joint parts in which radial clamping is obtained by wedging action on non-deformed pipe ends adapted for use in socket or sleeve connections
-
- 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
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/10—Means for stopping flow from or in pipes or hoses
- F16L55/115—Caps
- F16L55/1152—Caps fixed by screwing or by means of a screw-threaded ring
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
Abstract
The invention discloses a mechanical connecting flange structure of an underwater pipeline, which comprises the following components: the flange plate is connected with the connecting body through a stud and a nut component, the connecting body is connected with the bottom gland through a bolt, a front sealing component and a rear sealing component are arranged between the connecting body and the pipeline, and a buckling sleeve is arranged between the front sealing component and the rear sealing component; the front sealing component comprises a piston cylinder body sleeved on the pipeline, a piston sealing ring arranged at the rear of the piston cylinder body and a piston end cover covered on the piston cylinder body, and a piston locking ring is arranged in a clamping groove of the piston end cover; the rear sealing assembly comprises a positioning ring, a supporting ring, a first sealing limiting ring, a main sealing ring and a second sealing limiting ring, wherein the positioning ring is abutted against the rear end of the snap ring sleeve, the supporting ring is arranged behind the positioning ring, the second sealing limiting ring is abutted against the front end face of the bottom gland, and the sealing assembly is simple in structure, convenient and quick to operate and good in sealing effect.
Description
Technical Field
The invention relates to the technical field of connecting flanges, in particular to a mechanical connecting flange structure of an underwater pipeline.
Background
The mechanical connector is a pipeline connector for quickly connecting a cut-off pipeline and a pipeline of a joint in repairing operation, along with the development of economy, pipelines laid under water and on the sea floor gradually increase year by year, and because the environment under water and the sea floor is poor and even bad, great difficulty is brought to pipeline repairing, and once the pipeline leaks, the marine environment is polluted, and huge economic loss is caused, so that how to quickly connect the pipelines under the sea floor is an increasingly important problem, and the structure of the traditional pipeline connector is relatively complex and has poor sealing performance.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides the mechanical connecting flange structure of the underwater pipeline, which is rapid and convenient to install, and the arrangement of the front sealing component and the rear sealing component improves the sealing effect.
In order to solve the technical problems, the technical scheme adopted by the invention is a mechanical connecting flange structure of an underwater pipeline, comprising: the flange plate, the connecting body sleeved on the pipeline and the bottom gland are connected through the stud and the nut component, the connecting body is connected with the bottom gland through the bolt, the front sealing component and the rear sealing component are arranged between the connecting body and the pipeline, and the clamping sleeve is arranged between the front sealing component and the rear sealing component; the front sealing component comprises a piston cylinder body sleeved on the pipeline, a piston sealing ring arranged at the rear of the piston cylinder body and a piston end cover covered on the piston cylinder body, and a piston locking ring is arranged in a clamping groove of the piston end cover; the rear sealing assembly comprises a positioning ring, a supporting ring, a first sealing limiting ring, a main sealing ring and a second sealing limiting ring, wherein the positioning ring is abutted with the rear end of the snap ring sleeve, the supporting ring is arranged behind the positioning ring, and the second sealing limiting ring is abutted with the front end face of the bottom gland.
In a preferred embodiment of the invention, an O-shaped sealing ring is arranged between the front end of the piston cylinder body and the flange.
In a preferred embodiment of the present invention, the piston locking ring is an open locking ring having elasticity.
In a preferred embodiment of the present invention, the positioning ring is a three-open positioning ring, and the longitudinal section is an "L" structure.
In a preferred embodiment of the invention, the longitudinal section of the support ring is of an L-shaped configuration matching the retaining ring.
In a preferred embodiment of the present invention, the first sealing stop ring and the second sealing stop ring have the same structure, and include a supporting outer ring and an open elastic ring disposed in the supporting outer ring.
In a preferred embodiment of the present invention, the split elastic ring is made of rubber.
In a preferred embodiment of the invention, the support outer ring has a downhill slope.
In a preferred embodiment of the present invention, a clamping tooth for holding the pipeline is provided on the inner wall of the clamping sleeve, a bolt hole is provided on the outer ring of the clamping sleeve, and the clamping sleeve is fixedly connected with the connecting body through a supporting screw penetrating the bolt hole.
In a preferred embodiment of the present invention, the flange plate is provided with a liquid inlet test port, and the liquid inlet test port is communicated with the pipeline through a liquid inlet channel.
The beneficial effects of the invention are as follows: the mechanical connecting flange structure of the underwater pipeline is rapid and convenient to install, and the arrangement of the front sealing assembly and the rear sealing assembly improves the sealing limit effect; the flange plate is provided with a liquid inlet test port, and the sealing conditions among the front sealing assembly, the rear sealing assembly, the flange plate and the connecting body are detected through water injection of the test port so as to be convenient for timely adjustment.
Drawings
For a clearer description of the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the description below are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art, wherein:
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a schematic view of the front seal assembly of the present invention;
FIG. 4 is a schematic view of the rear seal assembly of the present invention;
FIG. 5 is a schematic view of a three-way positioning ring according to the present invention;
FIG. 6 is a schematic structural view of a first seal retainer ring and a second seal retainer ring according to the present invention;
FIG. 7 is a schematic view of a snap-fit sleeve according to the present invention;
FIG. 8 is a schematic diagram of the structure of the present invention when tested;
fig. 9 is a cross-sectional view of the invention as tested.
Description of the embodiments
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-7, a mechanical connection flange structure for an underwater pipeline according to the present invention includes: the flange plate 1, the connecting body 2 sleeved on the pipeline and the bottom gland 3 are connected and assembled through the stud 4 and the nut 5, the connecting body and the bottom gland are connected through the bolt 21, a front sealing assembly and a rear sealing assembly are arranged between the connecting body and the pipeline, and a buckle sleeve 6 is arranged between the front sealing assembly and the rear sealing assembly; the front sealing assembly comprises a piston cylinder body 7 sleeved on the pipeline, a piston sealing ring 8 arranged at the rear of the piston cylinder body and a piston end cover 9 covered on the piston cylinder body, wherein a piston locking ring 10 is arranged in a clamping groove of the piston end cover, an O-shaped sealing ring 11 is arranged between the front end of the piston cylinder body and the flange, the piston locking ring is an elastic opening locking ring, the piston cylinder body is pushed under the axial force action of the upper flange plate, the piston locking ring enters the clamping groove of the piston end cover, the sealing of the O-shaped sealing ring is accurately ensured, the sealing limit is realized, and the sealing performance is good.
Specifically, the rear sealing assembly comprises a positioning ring 12, a supporting ring 13, a first sealing limiting ring 14, a main sealing ring 15 and a second sealing limiting ring 16, wherein the positioning ring is abutted to the rear end of the snap ring, the supporting ring 13 is arranged behind the positioning ring, the second sealing limiting ring is abutted to the front end face of the bottom gland, the positioning ring is a three-opening positioning ring, the longitudinal section of the supporting ring is of an L-shaped structure matched with the positioning ring, the three-opening positioning ring is combined with the supporting ring, acting force is divided into an upper section and a lower section, the upper section is used as the support of the snap ring, the snap ring is tightly held on a central pipeline, the lower section is matched with the bottom gland and the two groups of sealing limiting rings, and the sealing effect of the main sealing ring can be ensured.
Specifically, the first sealing limiting ring and the second sealing limiting ring have the same structure, and comprise a supporting outer ring 17 and an opening elastic ring 18 arranged in the supporting outer ring, wherein the opening elastic ring is made of rubber, the supporting outer ring is provided with a slope which is in a downhill shape, and under the action of axial pressure of a bottom gland, the opening elastic ring moves downwards along the slope of the supporting outer ring, and radial component force acts on a central pipeline to limit a main sealing ring and also enable the pipeline to be automatically centered.
Specifically, be provided with the clamping tooth 61 that is used for holding tightly the pipeline on the inner wall of buckle cover, be provided with bolt hole 62 on the outer lane of buckle cover, buckle cover runs through bolt hole and connection body fixed connection through the supporting screw.
Referring to fig. 8-9, a liquid inlet test port 19 is arranged on the flange plate, the liquid inlet test port is communicated with the pipeline through a liquid inlet channel, the bearing capacity test of the holding pipeline is vertical, the connecting flange is fixed on a bracket 20, the bracket is fixed with foundation bolts for the ground for safety, the sealing head of the pressure test pipeline faces upwards, the liquid inlet test port performs a hydraulic test according to 1.5 times of rated working pressure, whether the pipeline has scratches or not is checked through the test, the pipeline slides, and the pipeline is used for water drainage after the detection is qualified, so that the safety of subsequent use is ensured.
The beneficial effects of the invention are as follows: the installation is quick and convenient, and the arrangement of the front sealing assembly and the rear sealing assembly improves the sealing limit effect; the flange plate is provided with a liquid inlet test port, and the sealing conditions among the front sealing assembly, the rear sealing assembly, the flange plate and the connecting body are detected through water injection of the test port so as to be convenient for immediate adjustment.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related arts are included in the scope of the present invention.
Claims (10)
1. A mechanical connection flange structure for an underwater pipeline, comprising: the flange plate, the connecting body sleeved on the pipeline and the bottom gland are connected through the stud and the nut component, and the connecting body is connected with the bottom gland through the bolt; the front sealing component comprises a piston cylinder body sleeved on the pipeline, a piston sealing ring arranged at the rear of the piston cylinder body and a piston end cover covered on the piston cylinder body, and a piston locking ring is arranged in a clamping groove of the piston end cover; the rear sealing assembly comprises a positioning ring, a supporting ring, a first sealing limiting ring, a main sealing ring and a second sealing limiting ring, wherein the positioning ring is abutted with the rear end of the snap ring sleeve, the supporting ring is arranged behind the positioning ring, and the second sealing limiting ring is abutted with the front end face of the bottom gland.
2. The mechanical connection flange structure of an underwater pipeline according to claim 1, wherein an O-ring is provided between the front end of the piston cylinder and the flange.
3. A mechanical connection flange structure for an underwater pipeline as claimed in claim 1 wherein the piston locking ring is an open locking ring having elasticity.
4. The mechanical connection flange structure of an underwater pipeline according to claim 1, wherein the positioning ring is a three-open positioning ring and the longitudinal section is an L-shaped structure.
5. A mechanical connection flange structure for an underwater pipeline according to claim 1 wherein the support ring has a longitudinal cross section of an "L" shape which matches the retaining ring.
6. The mechanical connection flange structure of an underwater pipeline according to claim 1, wherein the first sealing stop ring and the second sealing stop ring have the same structure, and comprise a support outer ring and an open elastic ring arranged in the support outer ring.
7. The structure of claim 6, wherein the split elastic ring is made of rubber.
8. A mechanical connection flange structure for an underwater pipeline as in claim 6 wherein the support outer ring has a downhill slope.
9. The mechanical connection flange structure of an underwater pipeline according to claim 1, wherein a clamping tooth for clamping the pipeline is arranged on the inner wall of the clamping sleeve, a bolt hole is arranged on the outer ring of the clamping sleeve, and the clamping sleeve is fixedly connected with the connection body through a supporting screw penetrating through the bolt hole.
10. The mechanical connection flange structure of an underwater pipeline according to claim 1, wherein the flange plate is provided with a liquid inlet test port, and the liquid inlet test port is communicated with the pipeline through a liquid inlet channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310602282.1A CN116336271B (en) | 2023-05-26 | 2023-05-26 | Mechanical connecting flange structure of underwater pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310602282.1A CN116336271B (en) | 2023-05-26 | 2023-05-26 | Mechanical connecting flange structure of underwater pipeline |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116336271A true CN116336271A (en) | 2023-06-27 |
| CN116336271B CN116336271B (en) | 2023-08-25 |
Family
ID=86889766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310602282.1A Active CN116336271B (en) | 2023-05-26 | 2023-05-26 | Mechanical connecting flange structure of underwater pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116336271B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101095037A (en) * | 2004-12-30 | 2007-12-26 | 卡-博投资有限公司 | Weld testing apparatus and methods for nozzles |
| CN204114424U (en) * | 2014-09-19 | 2015-01-21 | 周庆涛 | Mechanical pipe block threeway |
| CN104896227A (en) * | 2015-06-05 | 2015-09-09 | 周庆涛 | Quick pipeline connecting flange |
| CN204829017U (en) * | 2015-06-05 | 2015-12-02 | 周庆涛 | Quick flange of pipeline |
| CN204827328U (en) * | 2015-08-07 | 2015-12-02 | 苏州道森钻采设备股份有限公司 | Biliquid moves operation window with adjustable possesses operation space |
| CN210033355U (en) * | 2019-06-21 | 2020-02-07 | 胜利油田昊瑞石油机械有限责任公司 | Anticorrosive structure of casing head sealing ring groove |
| CN213089042U (en) * | 2020-08-13 | 2021-04-30 | 合肥创丰机械有限责任公司 | Stable flange connecting mechanism for large transformer |
| CN216555798U (en) * | 2021-11-20 | 2022-05-17 | 海南海泰斯技术有限公司 | ROV-based underwater pipeline connector |
-
2023
- 2023-05-26 CN CN202310602282.1A patent/CN116336271B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101095037A (en) * | 2004-12-30 | 2007-12-26 | 卡-博投资有限公司 | Weld testing apparatus and methods for nozzles |
| CN204114424U (en) * | 2014-09-19 | 2015-01-21 | 周庆涛 | Mechanical pipe block threeway |
| CN104896227A (en) * | 2015-06-05 | 2015-09-09 | 周庆涛 | Quick pipeline connecting flange |
| CN204829017U (en) * | 2015-06-05 | 2015-12-02 | 周庆涛 | Quick flange of pipeline |
| CN204827328U (en) * | 2015-08-07 | 2015-12-02 | 苏州道森钻采设备股份有限公司 | Biliquid moves operation window with adjustable possesses operation space |
| CN210033355U (en) * | 2019-06-21 | 2020-02-07 | 胜利油田昊瑞石油机械有限责任公司 | Anticorrosive structure of casing head sealing ring groove |
| CN213089042U (en) * | 2020-08-13 | 2021-04-30 | 合肥创丰机械有限责任公司 | Stable flange connecting mechanism for large transformer |
| CN216555798U (en) * | 2021-11-20 | 2022-05-17 | 海南海泰斯技术有限公司 | ROV-based underwater pipeline connector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116336271B (en) | 2023-08-25 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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| CB02 | Change of applicant information |
Address after: 215300 no.583, Xintang Road, high tech Zone, Kunshan City, Suzhou City, Jiangsu Province Applicant after: Suzhou Luokeli Technology Co.,Ltd. Address before: 215300 no.583, Xintang Road, high tech Zone, Kunshan City, Suzhou City, Jiangsu Province Applicant before: Suzhou Rockley Welding Technology Co.,Ltd. |
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