CN219712459U - Decompression unidirectional release device - Google Patents
Decompression unidirectional release device Download PDFInfo
- Publication number
- CN219712459U CN219712459U CN202321116626.XU CN202321116626U CN219712459U CN 219712459 U CN219712459 U CN 219712459U CN 202321116626 U CN202321116626 U CN 202321116626U CN 219712459 U CN219712459 U CN 219712459U
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- Prior art keywords
- valve
- pressure
- decompression
- release device
- valve body
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- 230000006837 decompression Effects 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 14
- 239000003795 chemical substances by application Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- UKACHOXRXFQJFN-UHFFFAOYSA-N heptafluoropropane Chemical compound FC(F)C(F)(F)C(F)(F)F UKACHOXRXFQJFN-UHFFFAOYSA-N 0.000 description 3
- 239000003814 drug Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Control Of Fluid Pressure (AREA)
Abstract
The utility model provides a decompression unidirectional release device, and belongs to the technical field of valves. The decompression unidirectional release device comprises a valve body, wherein a valve port is arranged at the lower end of the inner surface of the valve body, an air inlet is formed in the inner surface of the valve port, a hollow groove in the middle of the inner surface of the valve body is formed into a sliding inner cavity, a decompression opening is formed in one side of the outer surface of the valve body, a valve core is arranged on the inner surface of the sliding inner cavity, and one end of the valve core is fixedly provided with the valve head. The pressure unidirectional release device utilizes the difference of the pressure stress areas of the gas pressure, utilizes the force of the gas to apply work to the front and rear different areas of the valve core, and when the pressure is too high, the rear end force value is larger than the front end pressure valve core to move forward, so that the inlet area is reduced, the flow is reduced, the outlet pressure is also reduced, and the front and rear pressure difference value is realized by the flow in the process of continuously changing, so that the pressure of the gas outlet cannot exceed the set value.
Description
Technical Field
The utility model belongs to the technical field of valves, and particularly relates to a decompression one-way release device.
Background
In the external storage pressure type heptafluoropropane fire extinguishing system, high-pressure nitrogen and fire extinguishing agent are stored independently, and in order to reduce the process difficulty of downstream parts of the fire extinguishing agent bottle group, the high-pressure nitrogen needs to be released into the fire extinguishing agent bottle group after being depressurized. Meanwhile, the heptafluoropropane medicament in the fire extinguishing agent bottle group has saturated vapor pressure of 0.39Mpa, and leaks when being stored at ordinary times, so that the heptafluoropropane medicament is also required to be provided with a decompression one-way valve to be sealed in the fire extinguishing agent bottle group.
As disclosed in publication No. 201621481331.2, a decompression unidirectional releaser is disclosed, the utility model comprising: the valve body, it is provided with the axial passageway, the lower part lateral wall circumference of valve body has arranged the release hole, the axial passageway top-down has set gradually pressure relief device cushion cap and spring locating plate cushion cap, spring locating plate with the gas pocket is installed to spring locating plate cushion cap, piston assembly is installed to spring locating plate top, be provided with the spring between piston assembly and the spring locating plate, pressure relief device with the pressure relief hole is installed to the valve body pressure relief device cushion cap, be provided with first sealing gasket between pressure relief device's polygon ear and the valve body up end, pressure relief device's lower terminal surface seals with the second sealing gasket of installing in piston assembly, the valve body of valve body is provided with the O shape sealing washer that plays sealed effect with the disk seat.
The pressure-reducing unidirectional releaser is an integral part, the mutual structure is simpler, the subsequent assembly is not needed, the mutual sealing performance of the inside of the integral part is good, the integral leakage point is not formed, but the pressure generated by gas can be continuously changed in the use process of the device, the stable output is difficult to meet, and if the pressure change difference is overlarge, the pressure of the air outlet is most likely to exceed the set pressure value.
Disclosure of Invention
The present utility model is directed to a decompression one-way release device, which solves the problems set forth in the background art.
The aim of the utility model can be achieved by the following technical scheme: the utility model provides a decompression unidirectional release device, includes the valve body, the valve port is installed to the internal surface lower extreme of valve body, the air inlet has been seted up to the internal surface of valve port, the internal surface middle part dead slot department of valve body sets up to the slip inner chamber, the pressure release mouth has been seted up to surface one side of valve body, the internal surface mounting of slip inner chamber has the case, the one end fixed mounting of case has the valve head.
In the pressure-reducing one-way release device, a filter screen is arranged at the lower end of the inner surface of the valve head, and the filter screen is fixedly connected with the valve head.
In the pressure-reducing unidirectional release device, the hollow groove on the inner surface of the valve core is provided with the through cavity, and one end of the outer surface of the valve core is provided with the limiting body.
In the decompression unidirectional release device, a pressure spring is arranged at one end of the limiting body, and a valve cap is arranged at one end of the pressure spring.
In the decompression unidirectional release device, the inner surface of the valve cap is fixedly connected with one end of the valve body, and the upper end of the inner surface of the valve cap is provided with the air outlet.
In the decompression unidirectional release device, the O-shaped ring is arranged in the inner wall of the valve cap, and the O-shaped rings are arranged in the inner walls of the valve core and the limiting body.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, through the arrangement of the valve core and the pressure spring, different areas of the valve core are acted by utilizing the difference of pressure stress areas of gas pressure and the force of the gas, when the pressure is too high, the rear end force value is larger than the front end pressure valve core to move forward, so that the inlet area is reduced, the flow is reduced, the outlet pressure is also reduced, and the pressure difference between the front and the rear is realized by utilizing the flow in the process of continuously changing, so that the pressure of the gas outlet cannot exceed a set value.
2. The utility model adopts the arrangement of the air inlet and the air outlet, the volume of the device is small, the acting force of the pressure spring is small, the pressure of fluid is used for balancing the pressure of the outlet, and meanwhile, the air inlet and the air outlet are coaxial and are arranged on the main valve, so that the valve can be used as a one-way valve, all the requirements of GB25972 on the pressure reducing device are met, and the valve is multipurpose.
Drawings
Fig. 1 is a structural cross-sectional view of the present decompression unidirectional release device.
In the figure, 1, a valve body; 2. a valve port; 3. an air inlet; 4. a valve core; 5. a filter screen; 6. a cavity is communicated; 7. a valve cap; 8. a pressure spring; 9. an air outlet; 10. an O-ring; 11. a sliding inner cavity; 12. a limiting body; 13. a valve head; 14. and a pressure relief port.
Description of the embodiments
The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.
As shown in fig. 1, the decompression unidirectional release device comprises a valve body 1, a valve port 2 is arranged at the lower end of the inner surface of the valve body 1, an air inlet 3 is arranged at the inner surface of the valve port 2, a sliding inner cavity 11 is arranged at the hollow groove in the middle of the inner surface of the valve body 1, a decompression opening 14 is arranged at one side of the outer surface of the valve body 1, a valve core 4 is arranged on the inner surface of the sliding inner cavity 11, a valve head 13 is fixedly arranged at one end of the valve core 4, a filter screen 5 is arranged at the lower end of the inner surface of the valve head 13, the filter screen 5 is fixedly connected with the valve head 13, a through cavity 6 is arranged at the hollow groove in the inner surface of the valve core 4, a limit body 12 is arranged at one end of the outer surface of the valve core 4, a pressure spring 8 is arranged at one end of the limit body 12, a valve cap 7 is arranged at one end of the pressure spring 8, by utilizing the difference of pressure stress areas of gas pressure and the force of the gas, the valve core 4 is acted on different areas in front and back, when the pressure is too high, the rear end force value is larger than the front end to push the valve core 4 to move forwards, so that the inlet area is reduced, the flow is reduced, the outlet pressure is also reduced, the front and back pressure difference is realized by utilizing the flow, the pressure of the air outlet 9 cannot exceed a set value in the continuous change process, the inner surface of the valve cap 7 is fixedly connected with one end of the valve body 1, the air outlet 9 is formed in the upper end of the inner surface of the valve cap 7, the outlet pressure is balanced by utilizing the pressure of the fluid, and meanwhile, the air inlet 3 and the air outlet 9 are coaxially arranged in the main valve because of unidirectional, so the valve can also be used as a one-way valve. All requirements of GB25972 on the pressure reducing device are met, the valve is multipurpose, an O-shaped ring 10 is arranged in the inner wall of the valve cap 7, and the O-shaped rings 10 are arranged in the inner walls of the valve core 4 and the limiting body 12.
Working principle: when the decompression unidirectional release device is used, firstly, gas enters from the gas inlet 3, the difference of the pressure stressed areas of the gas pressure is utilized, the force of the gas is utilized to apply work to the front and rear different areas of the valve core 4, when the pressure is too high, the rear end force value is larger than the front end force valve core 4 to move forwards, so that the inlet area is reduced, the flow is reduced, the outlet pressure is also reduced, the front and rear pressure difference is realized in the process of continuously changing by utilizing the flow, the pressure of the gas outlet 9 is ensured not to exceed a set value, the device is small in volume, the acting force of the pressure spring 8 is small, and more pressure of the fluid is utilized to balance the outlet pressure, meanwhile, the gas inlet 3 and the gas outlet 9 are coaxial and are arranged on the main valve because of unidirectional, so the valve can be used as a unidirectional valve. Meets all requirements of GB25972 on the pressure reducing device, and realizes one valve for multiple purposes.
What is not described in detail in this specification is prior art known to those skilled in the art. The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.
Claims (6)
1. The utility model provides a decompression unidirectional release device, includes valve body (1), its characterized in that, valve port (2) are installed to the internal surface lower extreme of valve body (1), air inlet (3) have been seted up to the internal surface of valve port (2), the internal surface middle part dead slot department of valve body (1) sets up to slip inner chamber (11), pressure release mouth (14) have been seted up to surface one side of valve body (1), the internal surface mounting of slip inner chamber (11) has case (4), the one end fixed mounting of case (4) has valve head (13).
2. A decompression unidirectional release device according to claim 1, wherein the lower end of the inner surface of the valve head (13) is provided with a filter screen (5), and the filter screen (5) is fixedly connected with the valve head (13).
3. The decompression unidirectional release device according to claim 1, wherein the hollow groove on the inner surface of the valve core (4) is provided with a through cavity (6), and one end of the outer surface of the valve core (4) is provided with a limiting body (12).
4. A decompression one-way release device according to claim 3, wherein the pressure spring (8) is mounted at one end of the limit body (12), and a bonnet (7) is mounted at one end of the pressure spring (8).
5. The decompression unidirectional release device according to claim 4, wherein the inner surface of the valve cap (7) is fixedly connected with one end of the valve body (1), and the upper end of the inner surface of the valve cap (7) is provided with an air outlet (9).
6. The decompression unidirectional release device according to claim 4, wherein an O-ring (10) is installed in the inner wall of the valve cap (7), and the O-rings (10) are arranged in the inner walls of the valve core (4) and the limiting body (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321116626.XU CN219712459U (en) | 2023-05-11 | 2023-05-11 | Decompression unidirectional release device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321116626.XU CN219712459U (en) | 2023-05-11 | 2023-05-11 | Decompression unidirectional release device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219712459U true CN219712459U (en) | 2023-09-19 |
Family
ID=88015833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321116626.XU Active CN219712459U (en) | 2023-05-11 | 2023-05-11 | Decompression unidirectional release device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219712459U (en) |
-
2023
- 2023-05-11 CN CN202321116626.XU patent/CN219712459U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 317600 Block B18, Mei'ao Area, Valve Industry Functional Zone, Yuhuan City, Taizhou City, Zhejiang Province Patentee after: Zhejiang Sujie Valve Technology Co.,Ltd. Address before: 317600 Block B18, Mei'ao Area, Valve Industry Functional Zone, Yuhuan City, Taizhou City, Zhejiang Province Patentee before: TAIZHOU SUJIE VALVE CO.,LTD. |