CN116336232A - Safety cut-off valve - Google Patents
Safety cut-off valve Download PDFInfo
- Publication number
- CN116336232A CN116336232A CN202310216844.9A CN202310216844A CN116336232A CN 116336232 A CN116336232 A CN 116336232A CN 202310216844 A CN202310216844 A CN 202310216844A CN 116336232 A CN116336232 A CN 116336232A
- Authority
- CN
- China
- Prior art keywords
- valve
- pressure relief
- reducer pipe
- pipe group
- pressure
- 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
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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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/168—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side combined with manually-controlled valves, e.g. a valve combined with a safety valve
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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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/164—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side and remaining closed after return of the normal pressure
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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
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
- F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Safety Valves (AREA)
Abstract
The invention relates to the technical field of valve equipment, in particular to a safety cut-off valve; comprises a valve shell and a valve core rotatably arranged in the valve shell; the two ends of the valve shell are respectively provided with a reducer pipe group, the reducer pipe group is provided with a pressure relief sliding port I, the pressure relief sliding port I is rotationally provided with a pressure relief valve plate, and the reducer pipe group is slidably provided with a pressure limiting assembly for propping up the pressure relief valve plate; the pressure limiting assembly is used for keeping the pressure relief valve plate to close the pressure relief sliding port I, so that when the valve core rotates until internal media cannot pass through the valve core, the media in the reducer pipe groups at the two sides can be discharged after the pressure is overlarge, and the use safety of pipelines and equipment is kept; due to the centralized combination of the shut-off function and the safety pressure relief function of the valve equipment, the maintenance and use effects of the equipment are improved.
Description
Technical Field
The invention relates to the technical field of valve equipment, in particular to a safety cut-off valve.
Background
The safety valve is in a normally closed state under the action of external force, and when the pressure of the medium in the equipment or the pipeline rises to exceed a specified value, the medium is discharged to the outside of the system, so that the pressure of the medium in the pipeline or the equipment is prevented from exceeding the specified value.
The safety valve is divided into a full-open type safety valve and a micro-open type safety valve, and can be divided into a dead weight type safety valve, a lever type safety valve, a spring type safety valve and a pilot type safety valve according to the integral structure and the loading mode of the safety valve; in the pressure vessel and the pressure pipeline, the safety valve is generally arranged at the top of the equipment and is close to the protected equipment or pipeline as much as possible, and the position of the discharge outlet of the safety valve needs to be adjusted so that the discharged medium can be properly treated; however, in the two-way pipeline system, a safety valve is required to be respectively arranged at two ends of the stop valve, which is inconvenient for maintenance and use of equipment.
Disclosure of Invention
In order to achieve the purpose of increasing the maintenance and the use of the safety valve of the pipeline system needing bidirectional conveying, the invention adopts the following technical scheme:
the invention aims to provide a scheme that two ends of a stop valve are respectively provided with a pressure relief channel, so that pipelines on two sides of the stop valve can safely relieve pressure of internal media under the closing state of the stop valve, and the maintenance and use effects of equipment are improved.
In order to achieve the above purpose, the present application provides a safety shut-off valve, comprising a valve housing and a valve core rotatably installed inside the valve housing;
the two ends of the valve shell are respectively provided with a reducer pipe group, the reducer pipe group is provided with a pressure relief sliding port I, the pressure relief sliding port I is rotationally provided with a pressure relief valve plate, and the reducer pipe group is slidably provided with a pressure limiting assembly for propping up the pressure relief valve plate;
the pressure limiting assembly is used for keeping the pressure relief valve plate to close the pressure relief sliding port I, so that when the valve core rotates until internal media cannot pass through the valve core, the media in the reducer pipe groups at the two sides can be discharged after the pressure is overlarge, and the use safety of pipelines and equipment is kept;
due to the centralized combination of the shut-off function and the safety pressure relief function of the valve equipment, the maintenance and use effects of the equipment are improved.
Drawings
The following drawings are only intended to illustrate and explain the present invention, wherein:
FIG. 1 is a schematic view of a safety shut-off valve according to the present invention;
FIG. 2 is a schematic cross-sectional view of a safety shut-off valve of the present invention;
FIG. 3 is a schematic view of the reducer pipe set and the pressure relief valve plate of the present invention;
fig. 4 is an exploded schematic view of the valve housing of the present invention;
FIG. 5 is an exploded view of the safety shut-off valve of the present invention;
FIG. 6 is a schematic view of the structure of the face-supported valve seat and gasket II of the present invention;
FIG. 7 is a schematic view of the structure of a face-supported valve seat of the present invention;
FIG. 8 is a schematic diagram of the communication line, stop collar, seal cartridge and pressure relief line of the present invention;
FIG. 9 is a schematic structural view of a sealing sleeve and an abutting inclined plane II of the invention;
fig. 10 is a schematic view of the structure of the reducer pipe group and the abutment inclined plane i of the present invention.
In the figure: a valve housing 1; a valve cover 11; a limit seat 111; a face support valve seat 112; gasket II 113; a reducer pipe group 12; pressure relief slide I121; a pressure relief valve plate 122; abutting against the inclined plane I123; a communication pipe 13; a stop collar 14; a rectangular sheet 15; a valve core 2; a gasket I21; a handle 22; a sealing sleeve 31; pressure relief slide opening II 311; abutting the inclined plane II 312; a pressure relief line 32.
Detailed Description
In order to achieve the purpose of increasing the maintenance and the use of a safety valve of a pipeline system needing bidirectional conveying, the safety cut-off valve provided by the application comprises a valve shell 1 and a valve core 2 rotatably arranged in the valve shell 1, wherein a valve cover 11 for limiting the valve core 2 is arranged on the valve shell 1;
the handle 22 is arranged at the top of the valve core 2, and the valve core 2 is driven to rotate in the valve housing 1 by rotating the handle 22.
The lateral part of valve casing 1 is provided with reducing pipe group 12, is provided with intercommunication pipeline 13 on the reducing pipe group 12, and intercommunication pipeline 13 is linked together with outside pipe system through flange subassembly, is provided with pressure release smooth mouth I121 on the reducing pipe group 12, through the concentrated combination with the function of stopping of valve equipment and safe pressure release function, realizes increasing equipment maintenance and uses the purpose.
Wherein, the reducer pipe group 12 can be provided with two or more, and the reducer pipe group 12 is uniformly distributed and arranged at the peripheral side position of the valve casing 1, thereby increasing the use effect of the valve equipment for the multi-channel pipeline conveying system.
Specific embodiments of the present invention are described below.
Referring to fig. 1-3, an embodiment of the safety shut-off valve provided by the present invention, which uses the opening and closing of the pressure release valve plate 122 to maintain the safety of the use of the pipeline and the equipment, will be described:
the pressure release slide opening I121 of this application is interior installs pressure release valve block 122, through opening and shutting pressure release valve block 122 in pressure release slide opening I121, realizes the pressure release operation, keeps the safe in utilization of pipeline and equipment.
Referring to fig. 2 and fig. 6 to 7, an embodiment of the safety cut-off valve provided by the present invention is described, in which the surface support valve seat 112 is in contact with the large-area arc surface of the valve element 2, so as to increase the stability of use of the valve element 2:
the valve casing 1 is internally provided with a surface support valve seat 112 in a buckling mode on two sides of a valve core 2 respectively, the other end of the surface support valve seat 112 is in abutting connection and communication with a reducer pipe set 12, and the surface support valve seat 112 is arranged between the valve core 2 and a valve cover 11.
The face support valve seat 112 is fixedly mounted to the inside of the valve housing 1 by fasteners.
The surface support valve seat 112 is in contact with the large-area cambered surface of the valve core 2 in an abutting mode, the service stability of the valve core 2 is improved, the reducer pipe groups 12 are fixedly installed on two sides of the valve housing 1 through fasteners, and the easy-to-detach performance of the surface support valve seat 112 can be improved.
Referring to fig. 2 and fig. 4-6, an embodiment of the safety cut-off valve provided by the invention is described, wherein a limit seat 111 is additionally arranged, so that two sides of a gasket i 21 sleeved on the outer side of a valve rod on a valve core 2 are provided with plane abutting surfaces:
the gasket I21 is sleeved on the outer side of the valve core 2, and the gasket I21 is positioned between the valve cover 11 and the limiting seat 111;
wherein, the inside upper side position that is located two face support disk seats 112 of valve casing 1 installs spacing seat 111, and spacing seat 111 passes through fastener detachable fixed connection with valve gap 11, uses spacing seat 111, and when carrying out spacing on face support disk seat 112 top for the gasket I21 both sides that the valve rod outside on the case 2 cup jointed have the plane butt face.
A gasket II 113 is arranged in a groove on the outer side of the surface support valve seat 112, the other end of the gasket II 113 is in abutting connection with the reducer pipe group 12, and the sealing performance between the surface support valve seat 112 and the reducer pipe group 12 is maintained.
1-2, embodiments of the safety shut-off valve provided by the present invention, which combine the shut-off function and the safety pressure relief function of the valve device together, thereby increasing the effect of equipment maintenance and use, will be described:
the pressure relief valve plate 122 is rotatably arranged on a pin shaft in the pressure relief sliding opening I121;
the reducer pipe set 12 is slidably provided with a pressure limiting assembly for propping up the pressure release valve plate 122, so as to keep the pressure release valve plate 122 closed to the pressure release sliding port I121.
The pressure limiting assembly is utilized, so that when the valve core 2 rotates until internal media cannot pass through the valve core 2, the media in the reducer pipe groups 12 at the two sides can be discharged after the pressure is overlarge, and the use safety of pipelines and equipment is ensured; due to the centralized combination of the shut-off function and the safety pressure relief function of the valve equipment, the maintenance and use effects of the equipment are improved.
Wherein, limit ring 14 is installed to reducing pipe group 12's edge screw thread department, uses the limit ring, restricts the range of motion of pressure limit subassembly.
1-2, 5 and 8, a specific structural representation of the safety shut-off valve, the pressure limiting assembly, and an embodiment of the pressure relief operation for the medium in the reducer pipe set 12 using the pressure limiting assembly provided by the present invention are described:
the main part of the pressure limiting assembly is a sealing sleeve 31, a tension spring is arranged between the sealing sleeve 31 and the reducer pipe group 12, a pressure relief sliding opening II 311 is arranged on the sealing sleeve 31, and the other end of the pressure relief valve plate 122 extends into the pressure relief sliding opening II 311.
The side part of the sealing sleeve 31, which is positioned at the pressure relief slide opening II 311, is provided with a pressure relief pipeline 32.
When the medium pressure in the reducer pipe set 12 is overlarge, the pressure relief valve plate 122 which is obliquely arranged is pushed by the internal medium to rotate, and the sealing sleeve 31 is driven to slide on the reducer pipe set 12, so that the pressure relief sliding port I121 and the pressure relief sliding port II 311 are communicated, the medium in the reducer pipe set 12 is discharged from the pressure relief pipeline 32, and the use safety of the pipeline and equipment is kept;
after a certain amount of medium is discharged, the medium pressure in the reducer pipe set 12 is restored to a standard value, the tension spring drives the sealing sleeve 31 to reset, the pressure relief valve plate 122 is controlled to block the pressure relief valve plate 122 again, and the normally closed state of the pressure relief valve plate 122 is restored.
Wherein, the other end of pressure release pipeline 32 can communicate with the collection tank, avoids medium to scatter and overflow, influences the follow-up use of equipment.
Referring to fig. 9-10, an embodiment of the safety shut-off valve provided by the present invention to increase the closing performance of the relief valve plate 122 is described:
be provided with respectively on pressure release slide opening I121 and the pressure release slide opening II 311 can with pressure release valve block 122 both sides butt inclined plane I123 and butt inclined plane II 312, utilize butt inclined plane I123 and butt inclined plane II 312, increase pressure release valve block 122's closure performance.
Claims (10)
1. The utility model provides a safe valve that cuts, includes valve casing (1) and rotates case (2) of installing in valve casing (1) inside, its characterized in that: the two ends of the valve casing (1) are respectively provided with a reducer pipe group (12), the reducer pipe group (12) is provided with a pressure relief sliding opening I (121), and a pressure relief valve plate (122) is arranged in the pressure relief sliding opening I (121).
2. The safety shut-off valve according to claim 1, wherein: a valve cover (11) for limiting the valve core (2) is arranged on the valve housing (1).
3. The safety shut-off valve according to claim 1, wherein: the pressure relief valve block (122) is rotatably arranged on a pin shaft in the pressure relief sliding opening I (121), and a pressure limiting assembly used for tightly propping the pressure relief valve block (122) is slidably arranged on the reducer pipe group (12) so as to keep the pressure relief valve block (122) to control the closing of the pressure relief sliding opening I (121).
4. A safety shut-off valve according to claim 3, wherein: the main body of the pressure limiting assembly is a sealing sleeve (31), a tension spring is arranged between the sealing sleeve (31) and the reducer pipe group (12), a pressure relief sliding port II (311) is arranged on the sealing sleeve (31), and the other end of the pressure relief valve plate (122) extends into the pressure relief sliding port II (311).
5. The safety shut-off valve according to claim 4, wherein: the side part of the sealing sleeve (31) positioned at the pressure relief sliding opening II (311) is provided with a pressure relief pipeline (32).
6. The safety shut-off valve according to claim 4, wherein: the pressure relief sliding opening I (121) and the pressure relief sliding opening II (311) are respectively provided with an abutting inclined plane I (123) and an abutting inclined plane II (312) which can be abutted against two sides of the pressure relief valve plate (122).
7. The safety shut-off valve according to claim 4, wherein: rectangular sheets (15) are arranged on the reducer pipe group (12), and the sealing sleeve (31) is in embedded sliding connection with the rectangular sheets (15).
8. The safety shut-off valve according to claim 4, wherein: and a limiting ring (14) is arranged at the edge of the reducer pipe group (12) in a threaded manner.
9. The safety shut-off valve according to claim 2, wherein: the valve casing (1) is internally provided with a surface supporting valve seat (112) which is respectively buckled on two sides of the valve core (2), the other end of the surface supporting valve seat (112) is abutted with and communicated with the reducer pipe group (12), and the surface supporting valve seat (112) is arranged between the valve core (2) and the valve cover (11).
10. The safety shut-off valve according to claim 9, wherein: and a limiting seat (111) is arranged in the valve casing (1) and positioned on the upper side of the two surface supporting valve seats (112), and the limiting seat (111) is detachably and fixedly connected with the valve cover (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310216844.9A CN116336232B (en) | 2023-03-08 | 2023-03-08 | Safety cut-off valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310216844.9A CN116336232B (en) | 2023-03-08 | 2023-03-08 | Safety cut-off valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116336232A true CN116336232A (en) | 2023-06-27 |
| CN116336232B CN116336232B (en) | 2023-10-20 |
Family
ID=86883247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310216844.9A Active CN116336232B (en) | 2023-03-08 | 2023-03-08 | Safety cut-off valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116336232B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160238138A1 (en) * | 2015-02-12 | 2016-08-18 | Conbraco Industries, Inc. | Relief valve |
| CN213839864U (en) * | 2020-10-12 | 2021-07-30 | 广西鸿塑科技有限公司 | PE water supply pipe capable of preventing joint from bursting |
| CN214405140U (en) * | 2021-02-04 | 2021-10-15 | 鸿川建设工程有限公司 | Pressure relief device for pressure pipeline |
| CN215293944U (en) * | 2021-02-03 | 2021-12-24 | 包头市军达管业有限公司 | Plastic-coated steel pipe with port corrosion prevention function |
| CN114754162A (en) * | 2022-04-15 | 2022-07-15 | 浙江贝尔控制阀门有限公司 | Low-temperature ball valve |
| CN218582297U (en) * | 2022-10-31 | 2023-03-07 | 福建省海洋阀门科技有限公司 | Locking gate valve with pressure relief function |
-
2023
- 2023-03-08 CN CN202310216844.9A patent/CN116336232B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160238138A1 (en) * | 2015-02-12 | 2016-08-18 | Conbraco Industries, Inc. | Relief valve |
| CN213839864U (en) * | 2020-10-12 | 2021-07-30 | 广西鸿塑科技有限公司 | PE water supply pipe capable of preventing joint from bursting |
| CN215293944U (en) * | 2021-02-03 | 2021-12-24 | 包头市军达管业有限公司 | Plastic-coated steel pipe with port corrosion prevention function |
| CN214405140U (en) * | 2021-02-04 | 2021-10-15 | 鸿川建设工程有限公司 | Pressure relief device for pressure pipeline |
| CN114754162A (en) * | 2022-04-15 | 2022-07-15 | 浙江贝尔控制阀门有限公司 | Low-temperature ball valve |
| CN218582297U (en) * | 2022-10-31 | 2023-03-07 | 福建省海洋阀门科技有限公司 | Locking gate valve with pressure relief function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116336232B (en) | 2023-10-20 |
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