CN220816608U - Wedge gate valve middle cavity pressure detection and pressure relief structure - Google Patents
Wedge gate valve middle cavity pressure detection and pressure relief structure Download PDFInfo
- Publication number
- CN220816608U CN220816608U CN202322450164.1U CN202322450164U CN220816608U CN 220816608 U CN220816608 U CN 220816608U CN 202322450164 U CN202322450164 U CN 202322450164U CN 220816608 U CN220816608 U CN 220816608U
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- China
- Prior art keywords
- cavity
- pressure
- wedge gate
- gate valve
- upper cavity
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- 238000001514 detection method Methods 0.000 title claims abstract description 19
- 238000007789 sealing Methods 0.000 claims abstract description 30
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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- Safety Valves (AREA)
Abstract
The utility model relates to a wedge gate valve middle cavity pressure detection and pressure relief structure, which comprises an upper cavity and a lower cavity, wherein the upper cavity is in sealing connection with the lower cavity through a sealing ring, a valve cover middle cavity is formed between the upper cavity and the lower cavity, the upper cavity is in sealing connection with a valve rod, a flashboard is arranged at the bottom end of the valve rod and is in sealing connection with the lower cavity, the upper cavity is fixedly connected with a pressure gauge, the upper cavity is provided with a first connecting port, the first connecting port is in sealing connection with the pressure gauge through a connecting rod, the upper cavity is fixedly connected with a pressure relief ball valve through a connecting flange, the upper cavity is also provided with a second connecting port, the connecting flange is fixedly connected with the outer wall of the upper cavity, the pressure relief is provided with a runner, and the runner is connected to external equipment. The wedge gate valve middle cavity pressure detection and pressure relief structure has the advantages of being convenient to monitor and release, improving safety and service life, improving detection precision, being convenient to operate and the like.
Description
Technical Field
The utility model relates to the technical field of wedge gate valves, in particular to a wedge gate valve cavity pressure detection and pressure relief structure.
Background
Currently, wedge gate valves are one of the most common valves, as opening and closing devices for switching on or off a medium in a pipeline. The valve is widely applied to the fields of petroleum, chemical industry, power stations and the like, and the wedge gate valve is reliable in sealing and convenient to switch under the working condition of conventional medium liquid. However, when the valve is used for gas conditions, especially with alternating temperatures, it may happen that the valve cannot be opened due to the pressure build-up in the chamber of the valve caused by the alternating temperatures.
Therefore, a wedge gate valve cavity pressure detection and pressure relief structure is developed to solve the problems.
Disclosure of utility model
The utility model aims to overcome the defects of the prior art and provide a wedge gate valve middle cavity pressure detection and pressure relief structure which has the advantages of being convenient to monitor and release, improving safety and service life, improving detection precision, being convenient to operate and the like.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a wedge gate valve cavity pressure detects and pressure release structure, includes cavity and a cavity down, go up the cavity with pass through sealing washer sealing connection between the cavity down to form a valve gap cavity, go up cavity fixed connection manometer, and through flange fixed connection pressure release ball valve, flange with the outer wall fixed connection of last cavity, pressure release ball valve is equipped with a runner.
Preferably, a first connecting port is arranged at the top of the upper cavity, and the first connecting port is in sealing connection with the pressure gauge through a connecting rod.
Preferably, a second connecting port is further arranged at the top of the upper cavity, and the second connecting port is in sealing connection with the connecting flange.
Preferably, a first boss is arranged at one end of the connecting flange, a second boss is arranged at one end of the pressure relief ball valve, and the first boss and the second boss are in compression joint with a sealing gasket through bolts and nuts.
Preferably, the connecting flange is provided with a connecting column, and the connecting column is fixedly connected with the upper cavity through a plurality of supporting ribs.
Preferably, the pressure relief ball valve comprises a ball valve body and a connecting end, wherein a ball body is in sealing and pressing connection with the connecting end, and the ball body is in adjustable connection with the flow passage.
Preferably, the top end of the sphere is abutted against a rotary rod, and the rotary rod is fixedly connected with a handle.
Preferably, the rotary rod is provided with a blind hole, and a spring is crimped between the blind hole and the ball valve body.
Preferably, the upper cavity is inserted with a valve rod in a sealing manner, a flashboard is arranged at the bottom end of the valve rod, and the flashboard is connected with the lower cavity in a sealing manner.
Preferably, one end of the runner away from the connecting flange is connected to an external device.
Due to the application of the technical scheme, compared with the prior art, the utility model has the following advantages:
According to the wedge gate valve middle cavity pressure detection and pressure relief structure, the pressure gauge can monitor the valve middle cavity pressure at any time, and the pressure relief ball valve is used for relieving the excessive pressure, so that the safety of equipment is improved, and the service life is prolonged; the connecting rod and the connecting flange are arranged, so that the pressure detection precision is improved, and the pressure release is facilitated; the pressure relief ball valve discharges high pressure to external equipment through the handle and the rotary rod, so that the operation is convenient.
Drawings
Fig. 1 is a schematic structural diagram of a cavity pressure detecting and relieving structure of a wedge gate valve according to the present utility model.
Fig. 2 is an enlarged view of the utility model at a in fig. 1.
Detailed Description
The utility model will be described in further detail with reference to the accompanying drawings and specific examples.
In fig. 1 and 2, a wedge gate valve cavity pressure detecting and pressure releasing structure comprises an upper cavity 1 and a lower cavity 15, wherein the upper cavity 1 and the lower cavity 15 are in sealing connection through a sealing ring 16, and a valve cover cavity 101 is formed between the upper cavity 1 and the lower cavity 15. The upper cavity 1 is in sealing connection with a valve rod 105, a flashboard 106 is arranged at the bottom end of the valve rod 105, and the flashboard 106 is in sealing connection with the lower cavity 15.
One side of the upper cavity 1 is fixedly connected with a pressure gauge 8, a first connecting port 11 is arranged at the top of the upper cavity 1, and the first connecting port 11 is in sealing connection with the pressure gauge 8 through a connecting rod 81. The other side of the upper cavity 1 is fixedly connected with a pressure relief ball valve 7 through a connecting flange 3. A second connecting port 12 is also arranged at the top position of the upper cavity 1. The connecting flange 3 is fixedly connected with the outer wall of the upper cavity 1, and the pressure relief ball valve 7 is provided with a flow passage 10. The end of the flow channel 10 remote from the connection flange 3 is connected to an external device. The second connection port 12 is connected with the connection flange 3 in a sealing way.
A first boss 35 is provided at one end of the connection flange 3, and the connection flange 3 is provided with a connection post 31. One end of the pressure relief ball valve 7 is provided with a second boss 72, and the first boss 35 and the second boss 72 are in compression joint with a sealing gasket 4 through a bolt 5 and a nut 6. The connecting column 31 is fixedly connected with the upper cavity 1 through a plurality of supporting ribs 2.
The pressure relief ball valve 7 comprises a ball valve body 79 and a connecting end 78, a ball 71 is in sealing and pressing connection between the ball valve body 79 and the connecting end 78, the top end of the ball 71 is abutted against a rotating rod 73, and the rotating rod 73 is provided with a blind hole 74. The sphere 71 is adjustably connected to the flow channel 10. The rotary rod 73 is fixedly connected with a handle 9. A spring 75 is crimped between the blind bore 74 and the ball valve body 79.
The connecting flange 3 is welded in the hole of the valve cover middle cavity 101, the supporting ribs 2 are welded on two sides of the connecting flange, stability of the device after the pressure relief ball valve 7 is installed is guaranteed, then the sealing gasket 4 is placed between the connecting flange 3 and the pressure relief ball valve 7, and the connecting flange 3 and the pressure relief ball valve 7 are fastened together through the bolts 5 and the nuts 6. The pressure gauge 8 is then welded to the valve cover at another location in the cavity 101.
The pressure relief ball valve 7 is arranged at the closed position, the pressure of the pressure gauge 8 is detected, if the overpressure is found, the handle 9 is opened, the pressure relief ball valve 7 is arranged at the open position, and the pressure of the cavity 101 in the valve cover is relieved. When the medium is nontoxic and harmless, the pressure can be directly released. When the medium is toxic and harmful, and pollutes the environment, the discharged gas can be collected by connecting one end of the flow channel 10 to the structure of external equipment and installing other processing equipment.
The foregoing is merely a specific application example of the present utility model, and the protection scope of the present utility model is not limited in any way. All technical schemes formed by equivalent transformation or equivalent substitution fall within the protection scope of the utility model.
Claims (10)
1. The utility model provides a wedge gate valve middle chamber pressure detects and pressure release structure which characterized in that: the novel pressure relief ball valve comprises an upper cavity (1) and a lower cavity (15), wherein the upper cavity (1) is in sealing connection with the lower cavity (15) through a sealing ring (16), a valve cover middle cavity (101) is formed, the upper cavity (1) is fixedly connected with a pressure gauge (8), a pressure relief ball valve (7) is fixedly connected through a connecting flange (3), the connecting flange (3) is fixedly connected with the outer wall of the upper cavity (1), and the pressure relief ball valve (7) is provided with a flow passage (10).
2. The pressure detection and pressure relief structure of a wedge gate valve middle cavity according to claim 1, wherein a first connecting port (11) is arranged at the top position of the upper cavity (1), and the first connecting port (11) is in sealing connection with the pressure gauge (8) through a connecting rod (81).
3. The pressure detection and pressure relief structure of the wedge gate valve middle cavity according to claim 2, wherein a second connecting port (12) is further arranged at the top position of the upper cavity (1), and the second connecting port (12) is in sealing connection with the connecting flange (3).
4. The pressure detection and pressure relief structure of a wedge gate valve middle cavity according to claim 1, characterized in that a first boss (35) is arranged at one end of the connecting flange (3), a second boss (72) is arranged at one end of the pressure relief ball valve (7), and the first boss (35) and the second boss (72) are in pressure connection with a sealing gasket (4) through bolts (5) and nuts (6).
5. The pressure detection and pressure relief structure of a wedge gate valve middle cavity according to claim 1, wherein the connecting flange (3) is provided with a connecting column (31), and the connecting column (31) is fixedly connected with the upper cavity (1) through a plurality of supporting ribs (2).
6. The pressure detection and relief structure of a wedge gate valve cavity according to claim 1, wherein the relief ball valve (7) comprises a ball valve body (79) and a connecting end (78), a ball (71) is sealed and pressed between the ball valve body (79) and the connecting end (78), and the ball (71) is adjustably connected with the flow channel (10).
7. The pressure detection and relief structure of a wedge gate valve cavity according to claim 6, wherein the top end of the sphere (71) is abutted against a rotary rod (73), and the rotary rod (73) is fixedly connected with a handle (9).
8. The pressure detecting and relieving structure for a wedge gate valve cavity according to claim 7, wherein the rotary rod (73) is provided with a blind hole (74), and a spring (75) is pressed between the blind hole (74) and the ball valve body (79).
9. The wedge gate valve middle cavity pressure detection and pressure relief structure according to claim 1, wherein the upper cavity (1) is in sealing connection with a valve rod (105), a flashboard (106) is arranged at the bottom end of the valve rod (105), and the flashboard (106) is in sealing connection with the lower cavity (15).
10. The wedge gate valve cavity pressure detection and relief structure according to claim 1, characterized in that the end of the flow channel (10) remote from the connecting flange (3) is connected to an external device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322450164.1U CN220816608U (en) | 2023-09-11 | 2023-09-11 | Wedge gate valve middle cavity pressure detection and pressure relief structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322450164.1U CN220816608U (en) | 2023-09-11 | 2023-09-11 | Wedge gate valve middle cavity pressure detection and pressure relief structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220816608U true CN220816608U (en) | 2024-04-19 |
Family
ID=90707552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322450164.1U Active CN220816608U (en) | 2023-09-11 | 2023-09-11 | Wedge gate valve middle cavity pressure detection and pressure relief structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220816608U (en) |
-
2023
- 2023-09-11 CN CN202322450164.1U patent/CN220816608U/en active Active
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