CN216692274U - Pressure reducer for reducing linkage low-pressure release gas - Google Patents
Pressure reducer for reducing linkage low-pressure release gas Download PDFInfo
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- CN216692274U CN216692274U CN202122886942.2U CN202122886942U CN216692274U CN 216692274 U CN216692274 U CN 216692274U CN 202122886942 U CN202122886942 U CN 202122886942U CN 216692274 U CN216692274 U CN 216692274U
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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
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- Y02T10/30—Use of alternative fuels, e.g. biofuels
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Abstract
The utility model discloses a pressure reducer for pressure reduction linkage low-pressure release gas, which comprises a gas inlet nozzle, a shell, a pressure regulating assembly and a pressure reducing assembly, wherein the shell is provided with a gas inlet nozzle; when the rotating screw moves towards the direction close to the linkage valve assembly, the linkage valve assembly pushes the pressure reducing assembly to displace through the ejector rod, and gas enters the cavity II from the cavity I; when the rotary screw moves in the direction far away from the linkage valve assembly, the ejector rod moves upwards, the pressure regulating spring is in an extending state, the linkage valve assembly is separated from the ejector rod and is opened, and gas enters the outer shell from the cavity II and is discharged. The utility model can release downstream gas while closing the handle of the pressure reducer, protects downstream equipment from being pressed for a long time, and has compact structure and high reliability.
Description
Technical Field
The utility model relates to the technical field of pressure reducers, in particular to a pressure reducer for reducing linkage low-pressure release gas.
Background
The existing gas supply system provided with the pressure reducer cannot automatically release downstream gas after the pressure reducer is turned off, and if a closed cavity is formed in the downstream, downstream equipment is always pressed, so that damage to valves and sensitive components can be caused, and the service life is shortened.
SUMMERY OF THE UTILITY MODEL
The utility model aims to make up the defects of the prior art and provides a pressure reducer with pressure reducing linkage and low-pressure gas release.
The utility model is realized by the following technical scheme:
a pressure-reducing linkage low-pressure release gas pressure reducer comprises a gas inlet nozzle, a shell, a pressure-regulating component and a pressure-reducing component;
the air inlet connector is arranged at the air inlet end of the shell, and an oxygenation valve assembly is hermetically arranged in the air inlet connector; the shell is internally provided with a first cavity and a second cavity which are communicated with each other; the first cavity is communicated with the air inlet connector;
the pressure regulating component comprises an outer shell, a threaded sleeve, a screw rod, a pressure regulating spring, a rubber diaphragm, a linkage valve assembly and a push rod; the upper end and the lower end of the outer shell are provided with openings, the lower end of the outer shell is in threaded connection with the inner wall of the upper end of the cavity II of the shell, and the threaded sleeve is in threaded connection with the inner wall of the upper end of the outer shell; the screw rod penetrates through the top end of the threaded sleeve and is in threaded connection with the top end of the threaded sleeve; the pressure regulating spring is positioned in the screw sleeve and the outer shell, the lower end of the screw rod is contacted with the upper end of the pressure regulating spring, the rubber diaphragm is hermetically installed in the lower end of the outer shell, the rubber diaphragm can slide up and down on the lower end of the outer shell, the lower end of the pressure regulating spring is fixed on the diaphragm, a central hole is formed in the center of the rubber diaphragm, and the linkage valve assembly is hermetically arranged in the central hole of the rubber diaphragm in a penetrating manner and is fixed; the ejector rod is positioned in the communicating part of the first cavity and the second cavity, and the linkage valve assembly is contacted with the upper end of the ejector rod; the lower end of the ejector rod is contacted with the pressure reducing component; the pressure reducing assembly is positioned in the first cavity;
when the rotating screw moves towards the direction close to the linkage valve assembly, the linkage valve assembly pushes the pressure reducing assembly to displace through the ejector rod, and gas enters the cavity II from the cavity I;
when the rotary screw moves in the direction far away from the linkage valve assembly, the ejector rod moves upwards, the pressure regulating spring is in an extending state, the linkage valve assembly is separated from the ejector rod and is opened, and gas enters the outer shell from the cavity II and is discharged.
The linkage valve assembly comprises a valve body, a spherical valve, a return spring and a screw plug; the plug screw is fixedly arranged in the second cavity; the inner wall of the valve body is in a step shape, the top end of the valve body is provided with small air holes, the bottom end of the valve body is provided with an opening, the spherical valve is positioned in the lower end part of the valve body, the upper end of the reset spring is fixed on the inner wall of the top end of the valve body, the lower end of the reset spring is fixedly connected with the spherical valve, the valve body is fixedly arranged in the central hole of the rubber diaphragm in a penetrating way, and the upper end of the ejector rod penetrates through the plug screw and extends into the second cavity;
when the rotating screw rod moves towards the direction close to the linkage valve assembly, the pressure regulating spring drives the rubber diaphragm and the spherical valve to move downwards, the lower end of the valve body is in contact with the plug screw and pushes the spherical valve to move upwards to block the small vent hole in the upper end of the valve body, meanwhile, the spherical valve pushes the ejector rod downwards to push the pressure reducing assembly to displace, and gas enters the cavity II from the cavity I;
when the rotary screw moves towards the direction far away from the linkage valve assembly, the rubber diaphragm and the valve body move upwards to reset, the linkage valve assembly is separated from the ejector rod, the spherical valve is separated from the small vent hole in the upper end of the valve body under the thrust of the reset spring, the ejector rod moves upwards, and gas enters the outer shell from the cavity II and is discharged.
The linkage valve assembly further comprises a guide sleeve, the guide sleeve is located on the inner wall of the lower end portion of the valve body, and the spherical valve is located in the guide sleeve and guides the spherical valve.
The pressure regulating assembly further comprises a hard core, and the hard core is located between the screw rod and the pressure regulating spring.
The linkage valve assembly further comprises a gasket, the lower end of the pressure regulating spring is fixedly connected with the gasket, and the gasket is fixed on the rubber diaphragm.
The pressure reducing assembly comprises a pressure reducing valve, a pressure reducing spring and a pressure reducing valve body; the lower end of the pressure reducing spring is fixed in the first cavity, and the upper end of the pressure reducing spring is in contact with the pressure reducing valve; the pressure reducing valve and the pressure reducing spring are positioned in the pressure reducing valve body, the pressure reducing valve body is hermetically arranged in the second cavity and can slide up and down in the second cavity, and the pressure reducing valve body is sealed by the pressure reducing valve under the action of the pressure reducing spring; the lower end of the ejector rod extends into the second cavity and is in contact with the pressure reducing valve body;
and when the ejector rod pushes the pressure reduction valve body to move downwards, gas enters the cavity II from the cavity I.
The oxygenation valve assembly comprises an oxygenation valve and an oxygenation spring, one end of the oxygenation spring is fixed in the air inlet connector, and the other end of the oxygenation spring is connected with the oxygenation valve; the oxygenation valve is hermetically arranged in the air inlet connector and can slide in the air inlet connector; when in oxygenation, the oxygenation valve compresses the oxygenation spring, and the gas enters the first cavity.
The oxygenation valve assembly further comprises a filter block, and the filter block is mounted on the air inlet connector and used for filtering air.
And a limiting boss is arranged on the inner wall of the outer shell and positioned on the rubber diaphragm.
The utility model has the advantages that: the utility model can release downstream gas while closing the handle of the pressure reducer, thereby protecting downstream equipment from being pressed for a long time, and the product has compact structure and high reliability.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is an enlarged view of a portion of the present invention.
Detailed Description
As shown in fig. 1 and 2, a pressure-reducing linkage low-pressure release gas pressure reducer comprises a gas inlet connector 1, a shell 12, a pressure regulating assembly and a pressure reducing assembly;
the air inlet connector 1 is arranged at the air inlet end of the shell 12, and an oxygenation valve assembly is hermetically arranged in the air inlet connector 1; a first cavity 22 and a second cavity 23 which are communicated with each other are arranged in the shell 12; the first cavity 22 is communicated with the air inlet connector 1;
the pressure regulating component comprises an outer shell 8, a threaded sleeve 5, a screw rod 2, a pressure regulating spring 4, a rubber diaphragm 6, a linkage valve assembly and a mandril 15; the upper end and the lower end of the outer shell 8 are opened, the lower end of the outer shell 8 is in threaded connection with the inner wall of the upper end of the second cavity 23 of the shell 12, and the threaded sleeve 5 is in threaded connection with the inner wall of the upper end of the outer shell 8; the screw rod 2 penetrates through the top end of the threaded sleeve 5 and is in threaded connection with the top end of the threaded sleeve 5; the pressure regulating spring 4 is positioned inside the threaded sleeve 5 and the outer shell 8, the lower end of the screw rod 2 is in contact with the upper end of the pressure regulating spring 4, the rubber diaphragm 6 is hermetically installed inside the lower end of the outer shell 8, the rubber diaphragm 6 can slide up and down on the lower end of the outer shell 8, the rubber diaphragm 6 is used for sealing the cavity II 23, the lower end of the pressure regulating spring 4 is fixed on the diaphragm, a central hole is formed in the center of the rubber diaphragm 6, and the linkage valve assembly is hermetically arranged in the central hole of the rubber diaphragm 6 in a penetrating mode and is fixed; the ejector rod 15 is positioned in a communicating part of the first cavity 22 and the second cavity 23, and the linkage valve assembly is contacted with the upper end of the ejector rod 15; the lower end of the mandril 15 is contacted with the pressure reducing component; the pressure reducing assembly is positioned in the first cavity 22;
when the rotating screw rod 2 moves towards the direction close to the linkage valve assembly, the linkage valve assembly pushes the pressure reducing assembly to displace through the ejector rod 15, and gas enters the second cavity 23 from the first cavity 22;
when the rotary screw rod 2 moves towards the direction far away from the linkage valve assembly, the ejector rod 15 moves upwards, the pressure regulating spring 4 is in an extending state, the linkage valve assembly is separated from the ejector rod 15 and is opened, and gas enters the outer shell 8 from the second cavity 23 and is discharged.
The linkage valve assembly comprises a valve body 14, a spherical valve 16, a return spring 10 and a screw plug 13; the screw plug 13 is fixedly arranged in the second cavity 23; the inner wall of the valve body 14 is in a step shape, the top end of the valve body 14 is provided with a small vent hole, the bottom end of the valve body is provided with an opening, the spherical valve 16 is positioned inside the lower end part of the valve body 14, the upper end of the reset spring 10 is fixed on the inner wall of the top end of the valve body 14, the lower end of the reset spring 10 is fixedly connected with the spherical valve 16, the valve body 14 is fixedly arranged in the central hole of the rubber diaphragm 6 in a penetrating manner, and the upper end of the ejector rod 15 penetrates through the screw plug 13 and extends into the cavity II 23;
when the rotary screw 2 moves towards the direction close to the linkage valve assembly, the pressure regulating spring 4 drives the rubber diaphragm 6 and the spherical valve 16 to move downwards, the lower end of the valve body 14 contacts the screw plug 13 and pushes the spherical valve 16 to move upwards to block the small vent hole at the upper end of the valve body 14, meanwhile, the spherical valve 16 presses the ejector rod 15 downwards to push the pressure reducing assembly to move, and gas enters the cavity II 23 from the cavity I22;
when the rotary screw rod 2 moves towards the direction far away from the linkage valve assembly, the rubber diaphragm 6 and the valve body 14 move upwards to reset, the linkage valve assembly is separated from the ejector rod 15, the spherical valve 16 is separated from the small air hole at the upper end of the valve body 14 under the thrust of the reset spring 10, the ejector rod 15 moves upwards, and gas enters the outer shell 8 from the second cavity 23 and is discharged.
The linkage valve assembly further comprises a guide sleeve 9, the guide sleeve 9 is located on the inner wall of the lower end portion of the valve body 14, and the spherical valve 16 is located in the guide sleeve 9 and guides the spherical valve 16.
The pressure regulating assembly further comprises a hard core 7, and the hard core 7 is located between the screw rod 2 and the pressure regulating spring 4.
The linkage valve assembly further comprises a gasket 11, the lower end of the pressure regulating spring 4 is fixedly connected with the gasket 11, and the gasket 11 is fixed on the rubber diaphragm 6.
The pressure reducing assembly comprises a pressure reducing valve 17, a pressure reducing spring 19 and a pressure reducing valve body 18; the lower end of the pressure reducing spring 19 is fixed in the first cavity 22, and the upper end of the pressure reducing spring is in contact with the pressure reducing valve 17; the pressure reducing valve 17 and the pressure reducing spring 19 are positioned in the pressure reducing valve body 18, the pressure reducing valve body 18 is hermetically arranged in the second cavity 23 and can slide up and down in the second cavity 23, and the pressure reducing valve 17 seals the pressure reducing valve body 18 under the action of the pressure reducing spring 19; the lower end of the ejector rod 15 extends into the second cavity 23 and is in contact with the pressure reducing valve body 18;
when the ejector rod 15 pushes the decompression valve body 18 to move downwards, gas enters the cavity II 23 from the cavity I22.
The oxygenation valve 20 assembly comprises an oxygenation valve 20 and an oxygenation spring 21, one end of the oxygenation spring 21 is fixed in the air inlet connector, and the other end of the oxygenation spring is connected with the oxygenation valve 20; the oxygenation valve 20 is hermetically arranged in the air inlet connector and can slide in the air inlet connector; when in oxygenation, the oxygenation valve 20 compresses the oxygenation spring 21, and the gas enters the first cavity 22.
The oxygenation valve 20 assembly further comprises a filter block 3, and the filter block 3 is mounted on the air inlet connector and used for filtering air.
And a limiting boss is arranged on the inner wall of the outer shell 8 above the rubber diaphragm 6.
The working process of the utility model is as follows:
when the oxygen cylinder is used, the screw rod 2 is driven by the rotary switch to jack the pressure reducing valve 17, the inner cavity spherical valve 16 is linked with the rotary switch, the pressure reducing valve 17 is in an open state, the ejector rod 15 of the pressure reducing valve 17 can close the inner cavity spherical valve 16, and thus high-pressure oxygen in the oxygen cylinder is reduced by the pressure reducing mechanism and then normally supplies oxygen to the downstream; when the oxygen cylinder assembly of the unit is closed, the screw rod 2 is driven to move upwards by the reverse rotation switch, the pressure reducing valve 17 is closed under the action of the pressure reducing spring 19 and pressure, oxygen is not supplied to the downstream, meanwhile, due to linkage, the ejector rod 15 on the pressure reducing valve 17 is separated from the inner cavity spherical valve 16 due to limitation, the spherical valve 16 is separated from the valve body 14 under the action of the reset spring 10, so that oxygen in a downstream pipeline flows to the pressure relief hole along the gap at the position of the spherical valve 16 and is finally discharged to the atmosphere, and therefore the downstream oxygen is relieved by the closing switch. For system safety, a large-bore safety valve with a set opening pressure is additionally provided at the downstream line to ensure rapid release in the event of downstream overpressure.
Claims (9)
1. The utility model provides a decompression linkage low pressure release gas pressure reducer which characterized in that: comprises an air inlet joint, a shell, a pressure regulating component and a pressure reducing component;
the air inlet connector is arranged at the air inlet end of the shell, and an oxygenation valve assembly is hermetically arranged in the air inlet connector; the shell is internally provided with a first cavity and a second cavity which are communicated with each other; the first cavity is communicated with the air inlet connector;
the pressure regulating component comprises an outer shell, a threaded sleeve, a screw rod, a pressure regulating spring, a rubber diaphragm, a linkage valve assembly and a push rod; the upper end and the lower end of the outer shell are provided with openings, the lower end of the outer shell is in threaded connection with the inner wall of the upper end of the cavity body II of the shell, and the threaded sleeve is in threaded connection with the inner wall of the upper end of the outer shell; the screw rod penetrates through the top end of the threaded sleeve and is in threaded connection with the top end of the threaded sleeve; the pressure regulating spring is positioned in the screw sleeve and the outer shell, the lower end of the screw rod is contacted with the upper end of the pressure regulating spring, the rubber diaphragm is hermetically installed in the lower end of the outer shell, the rubber diaphragm can slide up and down on the lower end of the outer shell, the lower end of the pressure regulating spring is fixed on the diaphragm, a central hole is formed in the center of the rubber diaphragm, and the linkage valve assembly is hermetically arranged in the central hole of the rubber diaphragm in a penetrating manner and is fixed; the ejector rod is positioned in the communicating part of the first cavity and the second cavity, and the linkage valve assembly is contacted with the upper end of the ejector rod; the lower end of the ejector rod is contacted with the pressure reducing component; the pressure reducing assembly is positioned in the first cavity;
when the rotating screw moves towards the direction close to the linkage valve assembly, the linkage valve assembly pushes the pressure reducing assembly to displace through the ejector rod, and gas enters the cavity II from the cavity I;
when the rotary screw moves in the direction far away from the linkage valve assembly, the ejector rod moves upwards, the pressure regulating spring is in an extending state, the linkage valve assembly is separated from the ejector rod and is opened, and gas enters the outer shell from the cavity II and is discharged.
2. A pressure reducing ganged low pressure relief gas pressure reducer as claimed in claim 1, wherein: the linkage valve assembly comprises a valve body, a spherical valve, a return spring and a screw plug; the plug screw is fixedly arranged in the second cavity; the inner wall of the valve body is in a step shape, the top end of the valve body is provided with a small vent hole, the bottom end of the valve body is provided with an opening, the spherical valve is positioned inside the lower end part of the valve body, the upper end of the reset spring is fixed on the inner wall of the top end of the valve body, the lower end of the reset spring is fixedly connected with the spherical valve, the valve body is fixedly arranged in a central hole of the rubber diaphragm in a penetrating way, and the upper end of the ejector rod penetrates through the plug screw to extend into the cavity II;
when the rotating screw rod moves towards the direction close to the linkage valve assembly, the pressure regulating spring drives the rubber diaphragm and the spherical valve to move downwards, the lower end of the valve body is in contact with the plug screw and pushes the spherical valve to move upwards to block the small vent hole in the upper end of the valve body, meanwhile, the spherical valve pushes the ejector rod downwards to push the pressure reducing assembly to displace, and gas enters the cavity II from the cavity I;
when the rotating screw moves in the direction far away from the linkage valve assembly, the rubber diaphragm and the valve body move upwards to reset, the linkage valve assembly is separated from the ejector rod, the spherical valve is separated from the small vent hole in the upper end of the valve body under the thrust of the reset spring, the ejector rod moves upwards, and gas enters the outer shell from the cavity II and is discharged.
3. A pressure reducing linked low pressure relief gas pressure reducer as claimed in claim 2 wherein: the linkage valve assembly further comprises a guide sleeve, the guide sleeve is located on the inner wall of the lower end portion of the valve body, and the spherical valve is located in the guide sleeve and guides the spherical valve.
4. A pressure reducing linked low pressure relief gas pressure reducer as claimed in claim 2 wherein: the pressure regulating assembly further comprises a hard core, and the hard core is located between the screw rod and the pressure regulating spring.
5. A pressure reducing linked low pressure relief gas pressure reducer as claimed in claim 2 wherein: the linkage valve assembly further comprises a gasket, the lower end of the pressure regulating spring is fixedly connected with the gasket, and the gasket is fixed on the rubber diaphragm.
6. A pressure reducing ganged low pressure relief gas pressure reducer as claimed in claim 1, wherein: the pressure reducing assembly comprises a pressure reducing valve, a pressure reducing spring and a pressure reducing valve body; the lower end of the pressure reducing spring is fixed in the first cavity, and the upper end of the pressure reducing spring is in contact with the pressure reducing valve; the pressure reducing valve and the pressure reducing spring are positioned in the pressure reducing valve body, the pressure reducing valve body is hermetically arranged in the second cavity and can slide up and down in the second cavity, and the pressure reducing valve body is sealed by the pressure reducing valve under the action of the pressure reducing spring; the lower end of the ejector rod extends into the second cavity and is in contact with the pressure reducing valve body;
and when the ejector rod pushes the pressure reduction valve body to move downwards, gas enters the cavity II from the cavity I.
7. A pressure reducing ganged low pressure relief gas pressure reducer as claimed in claim 1, wherein: the oxygenation valve assembly comprises an oxygenation valve and an oxygenation spring, one end of the oxygenation spring is fixed in the air inlet connector, and the other end of the oxygenation spring is connected with the oxygenation valve; the oxygenation valve is hermetically arranged in the air inlet connector and can slide in the air inlet connector; when in oxygenation, the oxygenation valve compresses the oxygenation spring, and the gas enters the first cavity.
8. A pressure reducing linked low pressure relief gas pressure reducer as claimed in claim 7 wherein: the oxygenation valve assembly further comprises a filter block, and the filter block is mounted on the air inlet connector and used for filtering air.
9. A pressure reducing ganged low pressure release gas pressure reducer as claimed in claim 2, wherein: and a limiting boss is arranged on the inner wall of the outer shell and positioned on the rubber diaphragm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122886942.2U CN216692274U (en) | 2021-11-19 | 2021-11-19 | Pressure reducer for reducing linkage low-pressure release gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122886942.2U CN216692274U (en) | 2021-11-19 | 2021-11-19 | Pressure reducer for reducing linkage low-pressure release gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216692274U true CN216692274U (en) | 2022-06-07 |
Family
ID=81834545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122886942.2U Active CN216692274U (en) | 2021-11-19 | 2021-11-19 | Pressure reducer for reducing linkage low-pressure release gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216692274U (en) |
-
2021
- 2021-11-19 CN CN202122886942.2U patent/CN216692274U/en active Active
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