CN111219547A - Valve pipeline butt joint is with preventing leaking device - Google Patents
Valve pipeline butt joint is with preventing leaking device Download PDFInfo
- Publication number
- CN111219547A CN111219547A CN202010051700.9A CN202010051700A CN111219547A CN 111219547 A CN111219547 A CN 111219547A CN 202010051700 A CN202010051700 A CN 202010051700A CN 111219547 A CN111219547 A CN 111219547A
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- China
- Prior art keywords
- connecting pipe
- flange
- sealing
- sealing cover
- valve
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Classifications
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- 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
- F16L23/00—Flanged joints
- F16L23/02—Flanged joints the flanges being connected by members tensioned axially
- F16L23/024—Flanged joints the flanges being connected by members tensioned axially characterised by how the flanges are joined to, or form an extension of, the pipes
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- 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
- F16L23/00—Flanged joints
- F16L23/16—Flanged joints characterised by the sealing means
- F16L23/18—Flanged joints characterised by the sealing means the sealing means being rings
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details Of Valves (AREA)
Abstract
The invention discloses a valve pipeline butt joint leakage-proof device, relates to the technical field of valve sealing, solves the problem that a connecting port of a valve and a pipeline is easy to leak in the prior art, and has the technical key points that: the sealing device comprises a first connecting pipe and a second connecting pipe, wherein the first connecting pipe and the second connecting pipe are both hollow, one end of the first connecting pipe, which is connected with the second connecting pipe, is provided with a first flange, one end of the second connecting pipe, which is connected with the first connecting pipe, is provided with a second flange, the first flange and the second flange are connected through a connecting bolt, the first flange is provided with a sealing head, the sealing head is a conical surface, sealing pipes are further sleeved outside the first flange and the second flange, the sealing pipes, the first flange and the second flange are sealed by first sealing rings, and the sealing pipes are filled with distilled water with the same liquid pressure as that in the first connecting pipe; the invention improves the sealing performance and the service life of the valve and the pipeline.
Description
Technical Field
The invention relates to the technical field of valve sealing, in particular to a leakage-proof device for butt joint of valve pipelines.
Background
The valve and the pipeline connected with the processing equipment are generally connected with each other by adopting a pipeline connector, the pipeline connector is generally of a tubular structure, and two ends of the pipeline connector are respectively communicated with the valve and the pipeline through threaded connection. The pipeline connector is internally provided with a through hole as a fluid channel, the inner sides of the two ends of the pipeline connector are provided with threads, and in the installation process, the edges of the pipeline connector are required to be respectively provided with a sealing structure which is usually relatively fixed.
However, in the prior art, the pipeline connector is usually sealed by using a sealing ring, the sealing ring is easy to age in a long-time use process, and particularly in an environment with strong corrosivity, the service life of the sealing ring is further reduced, so that the joint of the pipeline and the valve is easy to leak, and therefore, the anti-leakage device for butt joint of the valve and the pipeline is provided.
Disclosure of Invention
The invention aims to solve the technical problem that the leakage-proof device for butt joint of the valve and the pipeline is provided, and the leakage-proof device comprises a first connecting pipe and a second connecting pipe, wherein the first connecting pipe and the second connecting pipe are hollow, a first flange is arranged at one end of the first connecting pipe connected with the second connecting pipe, a second flange is arranged at one end of the second connecting pipe connected with the first connecting pipe, the first flange and the second flange are connected through a connecting bolt, a sealing head which is arranged in the second connecting pipe and is sealed with the opening part of the second connecting pipe through an end face is arranged on the first flange, the sealing head is a conical surface, a sealing pipe is further sleeved outside the first flange and the second flange, the sealing pipe, the first flange and the second flange are sealed through first sealing rings, and distilled water with the same liquid pressure as the liquid pressure in the first connecting pipe is filled in the sealing pipe, so that the problem that a connecting port of the valve and the pipeline is easy to leak.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a valve pipeline butt joint is with preventing leakage device, including first connecting pipe and second connecting pipe, first connecting pipe and the inside equal cavity of second connecting pipe, one of being connected of first connecting pipe and second connecting pipe is served and is equipped with first flange, the one end that second connecting pipe and first connecting pipe are connected is equipped with the second flange, first flange and second flange pass through connecting bolt and connect, be equipped with on the first flange and establish in the second connecting pipe and adopt end face seal's sealed head with the oral area of second connecting pipe, sealed head is the conical surface, the outside of first flange and second flange still overlaps and is equipped with the sealed tube, the sealed tube all adopts first sealing washer to seal with first flange and second flange, the sealed tube is interior to be filled with the distilled water the same with liquid pressure in the first connecting pipe.
As a further scheme of the invention, the wall thickness of the first connecting pipe and the second connecting pipe close to the mouth part is larger than the pipe diameter thickness of the first connecting pipe and the second connecting pipe.
As a further scheme of the invention, the sealing pipe comprises a first sealing cover, a second sealing cover and a connecting pipe, the first sealing cover and the second sealing cover are respectively sleeved on the first connecting pipe and the second connecting pipe, the first sealing ring is arranged between the first connecting pipe and the first sealing cover and between the second connecting pipe and the second sealing cover, and the connecting pipe is connected with the first sealing cover and the second sealing cover through threads.
As a further scheme of the invention, the first sealing cover is in a cylindrical shape with openings at two ends, one end of the first sealing cover is provided with an annular flange, the inner diameter of the annular flange of the first sealing cover is the same as the outer diameter of the first connecting pipe, the outer side wall of the first sealing cover is provided with external threads, the structures of the second sealing cover and the first sealing cover are consistent, and the rotating directions of the external threads of the first sealing cover and the second sealing cover are opposite; the connecting pipe is in a cylindrical shape with openings at two ends, an annular baffle is arranged in the middle of the inner wall of the connecting pipe, a second sealing ring is arranged in the connecting pipe, and internal threads with opposite turning directions are arranged at the mouth parts at two ends of the connecting pipe.
As a further aspect of the present invention, the outer wall of the connecting tube is hexagonal.
As a further scheme of the invention, one end of the second sealing cover is connected with a one-way valve.
As a further scheme of the invention, a third sealing ring is also arranged between the first flange and the second flange, and the third sealing ring is a copper gasket sealing ring.
In conclusion, compared with the prior art, the invention has the following beneficial effects:
the invention seals the butt joint of the valve and the pipeline by setting double sealing and setting the internal and external pressure of the sealing structure to be the same state, thereby improving the sealing property of the valve and the pipeline and prolonging the service life of the valve and the pipeline.
Drawings
Fig. 1 is a schematic structural diagram of a leak-proof device for valve pipe butt joint.
Fig. 2 is a schematic structural view of a first sealing cover in the anti-leakage device for butt joint of the valve and the pipeline.
Fig. 3 is a schematic structural view of a connection pipe in the leakage preventing device for butt joint of valve pipes.
Reference numerals: 1-a first connecting pipe, 11-a first flange, 12-a sealing head, 2-a second connecting pipe, 21-a second flange, 3-a connecting bolt, 4-a sealing pipe, 41-a first sealing cover, 42-a second sealing cover, 43-a connecting pipe, 44-a second sealing ring, 5-a first sealing ring, 6-a one-way valve and 7-a third sealing ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
Example 1
As shown in fig. 1, a valve pipeline butt joint leakage preventing device comprises a first connecting pipe 1 and a second connecting pipe 2, wherein the first connecting pipe 1 and the second connecting pipe 2 are both hollow, a first flange 11 is arranged at one end, connected with the second connecting pipe 2, of the first connecting pipe 1, a second flange 21 is arranged at one end, connected with the first connecting pipe 1, of the second connecting pipe 2, the first flange 11 is connected with the second flange 21 through a connecting bolt 3, a sealing head 12 which is arranged in the second connecting pipe 2 and is sealed with the opening of the second connecting pipe 2 through an end face is arranged on the first flange 11, the sealing head 12 is a conical surface, a sealing pipe 4 is further sleeved outside the first flange 11 and the second flange 21, the sealing pipe 4, the first flange 11 and the second flange 21 are both sealed through a first sealing ring 5, and distilled water with the same liquid pressure as the liquid in the first connecting pipe 1 is filled in the sealing pipe 4;
a flange hole of the first flange 11 is provided with threads, a flange hole of the second flange 21 is a through hole, the connecting bolt 3 is in threaded connection with the first connecting pipe 1, the connecting bolt 3 presses the second connecting pipe 2 onto the sealing head 12, so that the sealing head 12 is sealed with the opening of the second connecting pipe 2, and the end face seal between the second connecting pipe 2 and the sealing head 12 is a first layer of seal;
preferably, the wall thicknesses of the first connecting pipe 1 and the second connecting pipe 2 close to the opening parts are both larger than the pipe diameter thicknesses of the first connecting pipe 1 and the second connecting pipe 2;
the sealing pipe 4 comprises a first sealing cover 41, a second sealing cover 42 and a connecting pipe 43, the first sealing cover 41 and the second sealing cover 42 are respectively sleeved on the first connecting pipe 1 and the second connecting pipe 2, the first sealing ring 5 is arranged between the first connecting pipe 1 and the first sealing cover 41 and between the second connecting pipe 2 and the second sealing cover 42, and the connecting pipe 43 is connected with the first sealing cover 41 and the second sealing cover 42 through threads; as shown in fig. 3, the connecting pipe 43 is a cylinder with openings at both ends, an annular baffle is arranged at the middle position of the inner wall of the connecting pipe 43, a second sealing ring 44 is arranged in the connecting pipe 43, internal threads with opposite turning directions are arranged at both end openings of the connecting pipe 43, the outer wall of the connecting pipe 43 is hexagonal so as to pre-tighten the connecting pipe 43, and when the connecting pipe 43 rotates, the first sealing cover 41 and the second sealing cover 42 are driven to approach the connecting pipe 43, thereby sealing the first sealing cover 41 and the second sealing cover 42;
preferably, a check valve 6 is connected to one end of the second sealing cap 42, and the check valve 6 facilitates the injection of distilled water into the sealing tube 4, thereby balancing the pressure in the sealing tube 4 and the pressure in the first connecting tube 1.
Example 2
As shown in fig. 1, a valve pipeline butt joint leakage preventing device comprises a first connecting pipe 1 and a second connecting pipe 2, wherein the first connecting pipe 1 and the second connecting pipe 2 are both hollow, a first flange 11 is arranged at one end, connected with the second connecting pipe 2, of the first connecting pipe 1, a second flange 21 is arranged at one end, connected with the first connecting pipe 1, of the second connecting pipe 2, the first flange 11 is connected with the second flange 21 through a connecting bolt 3, a sealing head 12 which is arranged in the second connecting pipe 2 and is sealed with the opening of the second connecting pipe 2 through an end face is arranged on the first flange 11, the sealing head 12 is a conical surface, a sealing pipe 4 is further sleeved outside the first flange 11 and the second flange 21, the sealing pipe 4, the first flange 11 and the second flange 21 are both sealed through a first sealing ring 5, and distilled water with the same liquid pressure as the liquid in the first connecting pipe 1 is filled in the sealing pipe 4;
preferably, in this embodiment, a third sealing ring 7 is further disposed between the first flange 11 and the second flange 21, the third sealing ring 7 is a copper gasket sealing ring, and the third sealing ring 7 is used to further increase the sealing performance between the first connecting pipe 1 and the second connecting pipe 2;
other structures in this embodiment are the same as those in embodiment 1.
In summary, the working principle of the invention is as follows:
for end face seal and sealed dual seal of sealed pad between first connecting pipe 1 and the second connecting pipe 2, still there is sealed effect after making single sealing failure of first connecting pipe 1 and second connecting pipe 2, the setting of sealed tube 4, make the internal and external pressure of first connecting pipe 1 and second connecting pipe 2 the same, the life-span of the seal structure of first connecting pipe 1 and second connecting pipe 2 has been improved, influence to seal structure when making liquid flow in first connecting pipe 1 and second connecting pipe 2 is less.
It should be particularly noted that, in this application, through the sealed double seal mode of end face seal and sealed the pad and set up the same improvement sealed effect of interior external pressure of seal structure and be the innovation point of this application, it has effectively solved the problem that the connector of valve and pipeline reveals easily among the prior art.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a valve pipeline butt joint is with preventing leaking device, including first connecting pipe (1) and second connecting pipe (2), first connecting pipe (1) and second connecting pipe (2) are inside all cavity, the one end that first connecting pipe (1) is connected with second connecting pipe (2) is equipped with first flange (11), the one end that second connecting pipe (2) are connected with first connecting pipe (1) is equipped with second flange (21), first flange (11) and second flange (21) are connected through connecting bolt (3), a serial communication port, be equipped with on first flange (11) establish in second connecting pipe (2) and adopt end face seal's sealing head (12) with the oral area of second connecting pipe (2), sealing head (12) are the conical surface, the outside of first flange (11) and second flange (21) still overlaps and is equipped with sealing tube (4), sealing tube (4) all adopt first sealing washer (5) to seal with first flange (11) and second flange (21), the sealed tube (4) is filled with distilled water with the same pressure as the liquid in the first connecting tube (1).
2. A leakage preventing device for butt joint of valve and pipeline according to claim 1, wherein the wall thickness of the first connecting pipe (1) and the second connecting pipe (2) near the mouth part is larger than the pipe diameter thickness of the first connecting pipe (1) and the second connecting pipe (2).
3. The anti-leakage device for butt joint of valve pipes according to claim 1, wherein the sealing pipe (4) comprises a first sealing cover (41), a second sealing cover (42) and a connecting pipe (43), the first sealing cover (41) and the second sealing cover (42) are respectively sleeved on the first connecting pipe (1) and the second connecting pipe (2), the first sealing ring (5) is arranged between the first connecting pipe (1) and the first sealing cover (41) and between the second connecting pipe (2) and the second sealing cover (42), and the connecting pipe (43) is connected with the first sealing cover (41) and the second sealing cover (42) through threads.
4. A leakage-proof device for butt joint of valve pipes according to claim 3, wherein the first sealing cover (41) is a cylinder with openings at both ends, one end of the first sealing cover (41) is provided with an annular rib, the inner diameter of the annular rib of the first sealing cover (41) is the same as the outer diameter of the first connecting pipe (1), the outer side wall of the first sealing cover (41) is provided with external threads, the second sealing cover (42) and the first sealing cover (41) have the same structure, and the external threads of the first sealing cover (41) and the second sealing cover (42) are opposite in rotation direction; the connecting pipe (43) is in a cylindrical shape with openings at two ends, an annular baffle is arranged in the middle of the inner wall of the connecting pipe (43), a second sealing ring (44) is arranged in the connecting pipe (43), and internal threads with opposite rotation directions are arranged at the mouth parts at two ends of the connecting pipe (43).
5. Leak-proof device for valve-pipe interface according to claim 4, characterised in that the outer wall of the connecting pipe (43) is hexagonal.
6. Anti-leakage device for valve-pipe butt joint according to claim 4, characterized in that a one-way valve (6) is connected to one end of the second sealing cover (42).
7. A leakage prevention device for butt joint of valve pipes according to any one of claims 1 to 6, wherein a third sealing ring (7) is further provided between the first flange (11) and the second flange (21), and the third sealing ring (7) is a copper gasket sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010051700.9A CN111219547A (en) | 2020-01-17 | 2020-01-17 | Valve pipeline butt joint is with preventing leaking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010051700.9A CN111219547A (en) | 2020-01-17 | 2020-01-17 | Valve pipeline butt joint is with preventing leaking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111219547A true CN111219547A (en) | 2020-06-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010051700.9A Withdrawn CN111219547A (en) | 2020-01-17 | 2020-01-17 | Valve pipeline butt joint is with preventing leaking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111219547A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111561630A (en) * | 2020-06-13 | 2020-08-21 | 温州市动宠商贸有限公司 | Pipeline leakage-proof method and device |
| CN112094166A (en) * | 2020-09-14 | 2020-12-18 | 江苏卓然智能重工有限公司 | Anti-leakage mechanism for assembling waste boiler module for ethylene cracking furnace |
| CN112413250A (en) * | 2020-10-17 | 2021-02-26 | 江苏优适捷实业有限公司 | Pipeline connecting structure |
| CN113819122A (en) * | 2021-09-23 | 2021-12-21 | 扬州三劦紧固件有限公司 | High-strength connecting fastener and manufacturing method thereof |
-
2020
- 2020-01-17 CN CN202010051700.9A patent/CN111219547A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111561630A (en) * | 2020-06-13 | 2020-08-21 | 温州市动宠商贸有限公司 | Pipeline leakage-proof method and device |
| CN111561630B (en) * | 2020-06-13 | 2022-03-11 | 温州市动宠商贸有限公司 | Pipeline leakage-proof method and device |
| CN112094166A (en) * | 2020-09-14 | 2020-12-18 | 江苏卓然智能重工有限公司 | Anti-leakage mechanism for assembling waste boiler module for ethylene cracking furnace |
| CN112094166B (en) * | 2020-09-14 | 2023-12-08 | 江苏博颂能源科技有限公司 | Leakage-proof mechanism for assembling waste pot module for ethylene cracking furnace |
| CN112413250A (en) * | 2020-10-17 | 2021-02-26 | 江苏优适捷实业有限公司 | Pipeline connecting structure |
| CN113819122A (en) * | 2021-09-23 | 2021-12-21 | 扬州三劦紧固件有限公司 | High-strength connecting fastener and manufacturing method thereof |
| CN113819122B (en) * | 2021-09-23 | 2022-11-08 | 扬州三劦紧固件有限公司 | High-strength connecting fastener and manufacturing method thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200602 |