CN221300231U - High-pressure large-drift-diameter temperature-driven bottle valve of safety pressure relief device - Google Patents
High-pressure large-drift-diameter temperature-driven bottle valve of safety pressure relief device Download PDFInfo
- Publication number
- CN221300231U CN221300231U CN202323097587.6U CN202323097587U CN221300231U CN 221300231 U CN221300231 U CN 221300231U CN 202323097587 U CN202323097587 U CN 202323097587U CN 221300231 U CN221300231 U CN 221300231U
- Authority
- CN
- China
- Prior art keywords
- valve
- cavity
- pressure relief
- valve body
- safety 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.)
- Active
Links
- 239000011540 sensing material Substances 0.000 claims abstract description 21
- 238000009423 ventilation Methods 0.000 claims abstract description 17
- 239000011521 glass Substances 0.000 claims description 16
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 229910000743 fusible alloy Inorganic materials 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 210000000664 rectum Anatomy 0.000 claims 1
- 238000001125 extrusion Methods 0.000 abstract description 3
- 238000007789 sealing Methods 0.000 description 7
- 239000000956 alloy Substances 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Landscapes
- Safety Valves (AREA)
Abstract
The utility model discloses a bottle valve of a high-pressure large-drift-diameter temperature-driven safety pressure relief device, and mainly relates to the technical field of gas bottle valves; the device comprises a valve body, a manual switch module and a safety pressure relief module, wherein the manual switch module and the safety pressure relief module are arranged on the valve body; the manual switch module comprises a valve core assembly, a valve cavity which is matched with the valve core assembly is arranged in the valve body, and the valve core assembly is positioned in the valve cavity and is in threaded connection with the valve cavity; the safety pressure relief module comprises a spring, a valve and a valve locking mechanism, and a ventilation channel and a moving cavity which are matched with the valve are arranged in the valve body; the utility model can ensure that the extrusion force born by the temperature sensing material is not influenced by the gas pressure within the normal temperature range, the temperature sensing material can not creep or be damaged, and the requirement of high-pressure large-drift-diameter safe pressure relief can be realized.
Description
Technical Field
The utility model relates to the technical field of gas cylinder valves, in particular to a cylinder valve of a high-pressure large-drift-diameter temperature-driven safety pressure relief device.
Background
In order to enable the gas cylinder to rapidly and automatically exhaust and release pressure in an unexpected high-temperature environment state (such as a fire disaster) so as to protect the gas cylinder from explosion, a safety pressure release device is usually arranged on a gas cylinder, a cylinder valve or a gas cylinder group pipeline, wherein the temperature-driven safety pressure release device (TPRD) is used as a type of the safety pressure release device, and the principle that a temperature sensing material deforms in the high-temperature state so as to open a pressure release channel is utilized to perform safety pressure release.
At present, the common temperature sensing material is provided with a fusible alloy and a temperature sensing glass column, the pressure of gas is propped against a cylindrical valve, the tail end of the valve is propped against a fusible alloy block or the temperature sensing glass column, but under the requirement of needing high pressure and large drift diameter discharge, the pressure of the gas of the prior art TPRD on the temperature sensing material is huge, the phenomenon of rapid alloy creep exists in the TPRD of the fusible alloy material, and the phenomenon that the pressure of the gas generated by the TPRD of the temperature sensing glass column material is close to or even exceeds the bearing capacity limit of the temperature sensing glass column exists.
Disclosure of utility model
The utility model aims to solve the problems in the prior art, and provides a bottle valve of a high-pressure large-drift-diameter temperature-driven safety pressure relief device, which can ensure that the extrusion force born by a temperature sensing material is not influenced by the pressure of gas in a normal temperature range, the temperature sensing material is not subject to creep deformation or damage, and the requirement of high-pressure large-drift-diameter safety pressure relief can be met.
The utility model aims to achieve the aim, and the aim is achieved by the following technical scheme:
A bottle valve of a high-pressure large-diameter temperature-driven safety pressure relief device comprises a valve body, a manual switch module and a safety pressure relief module, wherein the manual switch module and the safety pressure relief module are arranged on the valve body;
The manual switch module comprises a valve core assembly, a valve cavity which is matched with the valve core assembly is arranged in the valve body, the valve core assembly is positioned in the valve cavity and is in threaded connection with the valve cavity, an air inlet port is arranged on the valve body, an air inlet hole which is communicated with the valve cavity is arranged on the air inlet port, and an outlet channel which is communicated with the valve cavity is arranged on the valve body;
The safety pressure relief module comprises a spring, a valve and a valve locking mechanism, a ventilation channel and a moving cavity which are matched with the valve are arranged in the valve body, the ventilation channel is collinear and communicated with the axial lead of the moving cavity, a pressure relief air inlet hole communicated with the moving cavity is arranged on the air inlet interface, a relief opening communicated with the ventilation channel is arranged on the outer wall of the valve body, and the spring is positioned at one end of the valve;
The valve is provided with a balance hole penetrating through the valve along the axial direction of the valve, two ends of the valve are provided with pistons, and the outer diameters of the two pistons are the same;
the position of the valve is locked through the valve locking mechanism, so that the valve seals the discharge port;
The valve body is provided with a driving cavity which is matched with the valve locking mechanism, the driving cavity is communicated with the ventilation channel, the driving cavity is internally provided with a steel ball, a pressing block, a temperature sensing material and a screw plug in sequence from inside to outside, and the outer wall of the valve is provided with a limiting groove which is matched with the steel ball.
Preferably, the manual switch module further comprises a hand wheel, a valve rod and a pressing cap, wherein the pressing cap is positioned at the outer end of the valve cavity, the valve rod penetrates through the pressing cap and is rotationally connected with the pressing cap, one end of the valve rod is connected with the valve core assembly, and the other end of the valve rod is connected with the hand wheel.
Preferably, the inner end of the valve cavity is provided with a valve port which is matched with the valve cavity.
Preferably, a choke plug for closing the movable cavity is arranged on the valve body.
Preferably, a spring seat is arranged at one end of the valve close to the spring.
Preferably, the temperature sensing material is a fusible alloy.
Preferably, the temperature sensing material is a temperature sensing glass column, the outer layer of the temperature sensing glass column is a glass shell, and the inside of the glass shell is thermosensitive expansion liquid.
Compared with the prior art, the utility model has the beneficial effects that:
The two ends of the valve of the utility model adopt pistons with equal diameters, the center is provided with the balance hole, the acting forces of the gas acting on the two ends of the valve are mutually offset, the temperature sensing material only bears the action of the spring on the valve to generate lateral force, the extrusion force born by the temperature sensing material is not influenced by the pressure of the gas in the normal temperature range, the temperature sensing material is not subject to creep deformation or damage, and the requirement of high-pressure large-drift-diameter safe pressure relief can be realized.
Drawings
FIG. 1 is a schematic cross-sectional view of a front view of the structure of the present utility model;
FIG. 2 is a schematic cross-sectional view of a top view of the present utility model;
Fig. 3 is a schematic view of an open state structure of the safety pressure relief device of the present utility model.
The reference numbers shown in the drawings: 1. a hand wheel; 2. a valve stem; 3. pressing the cap; 4. a valve cavity; 5. a valve core assembly; 6. a valve port; 7. a valve body; 8. a spring; 9. a vent passage; 10. a first seal ring; 11. a first support ring; 12. a piston; 13. a balance hole; 14. a screw plug; 15. a temperature sensing material; 16. briquetting; 17. a drive chamber; 18. a steel ball; 19. a second support ring; 20. a second seal ring; 21. a choke plug; 22. a third support ring; 23. a third seal ring; 24. a moving chamber; 25. a spring seat; 26. a pressure relief air inlet; 27. an air inlet interface; 28. an air inlet hole is used; 29. an outlet channel; 30. and a discharge port.
Detailed Description
The utility model will be further illustrated with reference to specific examples. It is to be understood that these examples are illustrative of the present utility model and are not intended to limit the scope of the present utility model. Further, it will be understood that various changes and modifications may be made by those skilled in the art after reading the teachings of the utility model, and equivalents thereof fall within the scope of the utility model as defined by the claims.
Examples: as shown in figures 1-3, the utility model discloses a bottle valve of a high-pressure large-drift-diameter temperature-driven safety pressure relief device, which comprises a valve body 7, and a manual switch module and a safety pressure relief module which are arranged on the valve body 7.
The manual switch module comprises a valve core assembly 5, a valve cavity 4 which is matched with the valve core assembly 5 is arranged in the valve body 7, the valve core assembly 5 is positioned in the valve cavity 4 and is in threaded connection with the valve cavity 4, an air inlet port 27 is arranged on the valve body 7, an air inlet hole 28 which is communicated with the valve cavity 4 is arranged on the air inlet port 27, and an outlet channel 29 which is communicated with the valve cavity 4 is arranged on the valve body 7.
The manual switch module further comprises a hand wheel 1, a valve rod 2 and a pressing cap 3, wherein the pressing cap 3 is positioned at the outer end of the valve cavity 4, the pressing cap 3 is in threaded connection with the valve cavity 4, internal threads are arranged in the outer end of the valve cavity 4, corresponding external threads are arranged on the pressing cap 3, through holes are formed in the pressing cap 3, the valve rod 2 penetrates through the pressing cap 3 and is rotationally connected with the pressing cap 3, one end of the valve rod 2 is connected with the valve core assembly 5, the other end of the valve rod 2 is connected with the hand wheel 1, the valve rod 2 is driven to drive the valve core assembly 5 to be attached to and separated from the valve port 6 through rotation of the hand wheel 1, and the opening and closing functions of the manual switch part are realized.
The inner end of the valve cavity 4 is provided with a valve port 6 which is correspondingly protruded with the valve cavity 4, and the valve port 6 is communicated with an outlet channel 29.
The safety pressure relief module comprises a spring 8, a valve and a valve locking mechanism, a ventilation channel 9 and a movable cavity 24 which are matched with the valve are arranged in the valve body 7, the ventilation channel 9 is collinear and communicated with the axis of the movable cavity 24, a pressure relief air inlet 26 communicated with the movable cavity 24 is arranged on an air inlet interface 27, a relief opening 30 communicated with the ventilation channel 9 is arranged on the outer wall of the valve body 7, and the spring 8 is positioned at one end of the valve. The pressure relief air inlet 26 is positioned at the air inlet interface 27 and communicated with the movable cavity 24, and the side wall of the middle part of the movable cavity 24 is respectively provided with a positioning cavity and a safety relief air outlet 30.
The valve is provided with a balance hole 13 penetrating through the valve along the axial direction of the valve, two ends of the valve are provided with pistons 12, the outer diameters of the two pistons 12 are the same, two ends of the valve are sealed by sealing rings, the diameters of the two ends of the valve are consistent, one piston 12 is provided with a first sealing ring 10 and a first supporting ring 11, and the other piston 12 is provided with a second supporting ring 19 and a second sealing ring 20.
The position of the shutter is locked by the shutter lock mechanism so that the shutter closes the discharge port 30.
The valve body 7 is provided with a driving cavity 17 which is matched with the valve locking mechanism, the driving cavity 17 is communicated with the ventilation channel 9, a steel ball 18, a pressing block 16, a temperature sensing material 15 and a screw plug 14 are sequentially arranged in the driving cavity 17 from inside to outside, the screw plug 14 is in threaded connection with the driving cavity 17, the outer wall of the valve is provided with a limit groove which is matched with the steel ball 18, and the limit groove is preferably an annular groove. The spring 8 and the valve are arranged in the ventilation channel 9, the steel ball 18 is propped in the limit groove of the valve, the spring 8 is preloaded between the bottom of the ventilation channel 9 and the valve, the valve is sealed with the inner wall of the ventilation channel 9 through sealing rings at two ends, and the valve is not stressed.
Preferably, the valve body 7 is provided with a choke plug 21 for closing the moving cavity 24, the choke plug 21 is in threaded connection with the moving cavity 24, the choke plug is sealed by a sealing ring, and a third supporting ring 22 and a third sealing ring 23 are arranged at corresponding positions of the valve body 7.
Preferably, in order to facilitate the installation of the spring, the end of the shutter close to the spring 8 is provided with a spring seat 25.
Preferably, the temperature sensing material is a fusible alloy or a temperature sensing glass column, the outer layer of the temperature sensing glass column is high-strength glass, and the inside of the temperature sensing glass column is thermosensitive expansion liquid.
The utility model is used when in use:
In use, as shown in figure 1, the inlet port 27 of the cylinder valve is connected to the cylinder, and the hand wheel 1 of the manual valve switching module is closed clockwise and opened anticlockwise. When the safe pressure relief is in a closed state, one end of the spring 8 is propped against the bottom surface of the ventilation channel 9, the other end of the spring is propped against the spring seat 25 of the valve, the two ends of the valve are sealed by adopting O-shaped rings, the choke plug 21 is arranged at the tail end of the air inlet channel 9, the valve is sealed by adopting a sealing ring, the valve is propped against the limiting groove of the valve by the steel ball 18 in the driving cavity 17, the steel ball 18 is propped against the screw plug 14 through the pressing block 16, the temperature sensing material 15, the relief opening 30 is in a closed state, air enters the moving cavity 24 through the pressure relief air inlet hole 26, the balance hole 13 is arranged in the center of the valve, the diameters of the two ends of the valve are consistent, the two ends of the valve bear the air pressure to counteract each other, and the valve only bears the force of the spring 8.
As shown in figure 2, when the temperature sensing material 15 is deformed or broken at high temperature, the valve pushes the steel ball 18 open to the tail end of the moving cavity 24 under the action of spring force, and the moving cavity 24 and the discharge port 30 are communicated, so that the aim of safe pressure relief is achieved.
Claims (7)
1. The utility model provides a high pressure big latus rectum temperature drive safety pressure relief device's bottle valve, includes valve body (7) and sets up manual switch module, safety pressure relief module on valve body (7), its characterized in that:
the manual switch module comprises a valve core assembly (5), a valve cavity (4) which is matched with the valve core assembly (5) is arranged in the valve body (7), the valve core assembly (5) is positioned in the valve cavity (4) and is in threaded connection with the valve cavity (4), an air inlet port (27) is arranged on the valve body (7), an air inlet hole (28) which is communicated with the valve cavity (4) is arranged on the air inlet port (27), and an outlet channel (29) which is communicated with the valve cavity (4) is arranged on the valve body (7);
The safety pressure relief module comprises a spring (8), a valve and a valve locking mechanism, a ventilation channel (9) and a movable cavity (24) which are matched with the valve are arranged in the valve body (7), the ventilation channel (9) is collinear with and communicated with the axis of the movable cavity (24), a pressure relief air inlet hole (26) communicated with the movable cavity (24) is formed in the air inlet interface (27), a relief opening (30) communicated with the ventilation channel (9) is formed in the outer wall of the valve body (7), and the spring (8) is located at one end of the valve;
The valve is provided with a balance hole (13) penetrating through the valve along the axial direction of the valve, two ends of the valve are provided with pistons (12), and the outer diameters of the two pistons (12) are the same;
The position of the valve is locked through the valve locking mechanism, so that the valve closes the discharge port (30);
The valve is characterized in that a driving cavity (17) which is matched with the valve locking mechanism is arranged on the valve body (7), the driving cavity (17) is communicated with the ventilation channel (9), a steel ball (18), a pressing block (16), a temperature sensing material (15) and a screw plug (14) are sequentially arranged in the driving cavity (17) from inside to outside, and a limiting groove which is matched with the steel ball (18) is formed in the outer wall of the valve.
2. The cylinder valve of a high pressure large path temperature driven safety pressure relief device of claim 1, wherein: the manual switch module further comprises a hand wheel (1), a valve rod (2) and a pressing cap (3), wherein the pressing cap (3) is positioned at the outer end of the valve cavity (4), the valve rod (2) penetrates through the pressing cap (3) and is rotationally connected with the pressing cap (3), one end of the valve rod (2) is connected with the valve core assembly (5), and the other end of the valve rod is connected with the hand wheel (1).
3. The cylinder valve of a high pressure large path temperature driven safety pressure relief device of claim 1, wherein: the inner end of the valve cavity (4) is provided with a valve port (6) which is matched with the valve cavity (4).
4. The cylinder valve of a high pressure large path temperature driven safety pressure relief device of claim 1, wherein: the valve body (7) is provided with a choke plug (21) for closing the movable cavity (24).
5. The cylinder valve of a high pressure large path temperature driven safety pressure relief device of claim 1, wherein: one end of the valve, which is close to the spring (8), is provided with a spring seat (25).
6. The cylinder valve of a high pressure large path temperature driven safety pressure relief device of claim 1, wherein: the temperature sensing material (15) is a fusible alloy.
7. The cylinder valve of a high pressure large path temperature driven safety pressure relief device of claim 1, wherein: the temperature sensing material (15) is a temperature sensing glass column, the outer layer of the temperature sensing glass column is a glass shell, and the inside of the glass shell is thermosensitive expansion liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323097587.6U CN221300231U (en) | 2023-11-16 | 2023-11-16 | High-pressure large-drift-diameter temperature-driven bottle valve of safety pressure relief device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323097587.6U CN221300231U (en) | 2023-11-16 | 2023-11-16 | High-pressure large-drift-diameter temperature-driven bottle valve of safety pressure relief device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221300231U true CN221300231U (en) | 2024-07-09 |
Family
ID=91736660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323097587.6U Active CN221300231U (en) | 2023-11-16 | 2023-11-16 | High-pressure large-drift-diameter temperature-driven bottle valve of safety pressure relief device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221300231U (en) |
-
2023
- 2023-11-16 CN CN202323097587.6U patent/CN221300231U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2771144B2 (en) | Thermally actuated pressure relief device | |
| US5213128A (en) | Pressure/temperature-activated pressure relief valve | |
| CN207454847U (en) | A kind of safe pressure relief device for gas cylinder | |
| CN104373603A (en) | Hidden rod type ultralow temperature stop valve with upper sealing structure, lower sealing structure and pressure relief device | |
| CN221300231U (en) | High-pressure large-drift-diameter temperature-driven bottle valve of safety pressure relief device | |
| CN214119066U (en) | Outlet pressure control valve for refrigeration system | |
| CN111015595B (en) | Valve core opening device | |
| CN214662318U (en) | Temperature control relief device for high-pressure gas cylinder valve | |
| CN207728934U (en) | A kind of pressure difference self-sealing tap valve | |
| CN2212117Y (en) | Leakageless full open gas bottle pressure discharging valve | |
| CN2309470Y (en) | Leading gas safety relief valve | |
| CN208793641U (en) | Medical gas bottle valve | |
| CN208268443U (en) | A kind of major accident release gate valve | |
| CN204153161U (en) | The seal arrangement of dark bar ultralow temperature stop valve | |
| US4393889A (en) | Fire-safe valve structure | |
| CN113339344A (en) | Relief valve reaches hydraulic pressure power assisted steering ware including it | |
| CN112178256A (en) | Large-size stable-speed anti-surge air release valve | |
| CN207145702U (en) | A kind of natural gas pneumatic stopping valve | |
| CN219755399U (en) | Ball valve and reaction kettle | |
| CN217272105U (en) | Needle valve with pressure relief and exhaust functions | |
| JP2002168399A (en) | Valve device for gas cylinder | |
| CN213420025U (en) | High-pressure large-drift-diameter temperature-driven safety pressure relief device | |
| CN221323367U (en) | High-performance top-mounted C-type fireproof ball valve | |
| CN219911898U (en) | Thermal pressure relief device of bottleneck valve | |
| CN219221378U (en) | High-reliability overpressure control safety valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |