CN206802424U - A kind of decompressor of anti-leakage of compressed gas - Google Patents
A kind of decompressor of anti-leakage of compressed gas Download PDFInfo
- Publication number
- CN206802424U CN206802424U CN201720518076.2U CN201720518076U CN206802424U CN 206802424 U CN206802424 U CN 206802424U CN 201720518076 U CN201720518076 U CN 201720518076U CN 206802424 U CN206802424 U CN 206802424U
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- pressure
- reducing chamber
- sealing ring
- gas
- air inlet
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Abstract
A kind of decompressor of anti-leakage of compressed gas is the utility model is related to, belongs to compressed gas decompression technology field.Including body, body interior offers gas passage and pressure-reducing chamber, the both ends of body set air inlet and gas outlet, pressure-reducing chamber connects with air inlet, and the outlet side bore in pressure-reducing chamber is less than inlet end bore, axially displaceable valve element is provided with gas passage, one end of valve element is placed in pressure-reducing chamber, and in the spool end installation sealing ring and pad at pressure-reducing chamber, pad is located at sealing ring rear and fixed with valve element, pad is fixedly connected with spring, and pad can be along valve element in decompression indoor moving with sealing ring under the action of the spring.Decompressor provided by the utility model, can together it be installed with pressure-reducing valve, and at the air inlet at pressure-reducing valve rear, when depressurizing defective valve, decompressor can play overload protective function, greatly strengthen the safety in utilization of existing compression barreled liquefied gas.
Description
Technical field
A kind of decompressor of anti-leakage of compressed gas is the utility model is related to, belongs to compressed gas decompression technology field.
Background technology
For the common barreled liquefied gas of in the market, transport for convenience and canned using often liquefied gas pressurizes,
To avoid the gas leak of compression from causing the generation of security incident, pressure-reducing valve is often installed on gas outlet to adjust pressure.It is existing
There is the pressure-reducing valve used in technology to be divided into diaphragm type and piston type more, it is any to be all limited by spring machining accuracy, unit
The restriction of the factors such as the mechanical property change controllability during elastomeric deformable power size, use so that existing pressure-reducing valve begins
Unstable reliability hidden danger eventually be present.Once depressurizing defective valve, compressed gas certainly will cause leakage, fire due to hypertonia
Or the generation of the dangerous accident such as blast.In order to further strengthen the pressure reducing protection to existing compressed gas, inventor designs
A kind of decompressor, the hidden danger that the failure of pressure-reducing valve is brought can be effectively made up, plays overload protective function, this case is given birth to therefrom.
Utility model content
To achieve these goals, technical scheme is used by the utility model：
A kind of decompressor of anti-leakage of compressed gas, including body, body interior offer gas passage and pressure-reducing chamber,
The both ends of body set air inlet and gas outlet, pressure-reducing chamber to be connected with air inlet, and the outlet side bore in pressure-reducing chamber is less than air inlet
Port footpath, gas passage is interior to be provided with axially displaceable valve element, and one end of valve element is placed in pressure-reducing chamber, and positioned at pressure-reducing chamber
The spool end installation sealing ring and pad, pad at place are located at sealing ring rear and fixed with valve element, and pad is fixed with spring to be connected
Connect, pad can be along valve element in decompression indoor moving with sealing ring under the action of the spring.
The bore of the air inlet is more than the bore of gas outlet.
The cross-sectional sizes of the sealing ring are more than the cross-sectional sizes of pressure-reducing chamber outlet side, and sealing ring can be by pressure-reducing chamber outlet side
Covering sealing, and the cross-sectional sizes of sealing ring are less than the cross-sectional sizes of pressure-reducing chamber cavity.
When the gas that the installation of the spring need to ensure to enter air inlet is normal pressure, sealing ring is not covered in going out for pressure-reducing chamber
Gas end, when the gas for entering air inlet is high pressure, promote sealing ring that the air outlet in pressure-reducing chamber is complete under pressure
Covering.
Decompressor provided by the utility model, can together it be installed with pressure-reducing valve, and entering installed in pressure-reducing valve rear
At gas port, when depressurizing defective valve, decompressor can play overload protective function, greatly strengthen existing compression barreled liquefaction
The safety in utilization of gas.
The utility model is further elaborated below by way of the drawings and specific embodiments.
Brief description of the drawings：
Fig. 1 is structural representation of the present utility model.
Embodiment：
As shown in figure 1, a kind of decompressor of anti-leakage of compressed gas provided by the utility model, including outside body
2, the gas passage for being available for gas to circulate is set inside body 2, and the both ends of gas passage form air inlet 4 and gas outlet respectively
5, to reach more preferable effect of easing stress, the caliber size of gas outlet 5 is designed to the caliber size less than air inlet 4.Close to
One pressure-reducing chamber 6 is set in the gas passage of air inlet 4, and pressure-reducing chamber 6 is interconnected with air inlet 4, and makes entering for pressure-reducing chamber 6
Gas end caliber size is more than the outlet side caliber size in pressure-reducing chamber 6.Axially disposed one in the gas passage inside body 2
Valve element 1, valve element 1 can move axially along gas passage.Valve element 1 need to be placed in pressure-reducing chamber 6 close to one end of air inlet 4, the other end
Fixed with nut 3.Pad 8 is fixedly mounted in the end that valve element 1 is located in pressure-reducing chamber 6 and sealing ring 7, pad 8 are located at sealing ring 7
Rear, sealing ring 7 is closer to air inlet 4.Pad 8 and sealing ring 7 can synchronously move with valve element 1, collectively form a work
Plug.Pad 8 is fixedly connected with spring 9, pulls piston to be moved in pressure-reducing chamber 6 using the active force of spring 9.The effect of piston
It is when the gas pressure for entering air inlet 4 is very big, piston can be promoted to block the air outlet in pressure-reducing chamber 6, prevent air inlet
Into valve body, therefore the cross-sectional sizes of sealing ring 7 and pad 8 need to be reasonable in design, makes it be more than the section of the air outlet of pressure-reducing chamber 6
Size, and less than the cross-sectional sizes of the central cavity of pressure-reducing chamber 6.
The decompressor of said structure can be arranged on the rear of pressure-reducing valve, and duplicate protection is together formed with pressure-reducing valve.When subtracting
During pressure valve normal work, the gas pressure that enters decompressor air inlet 4 is normal pressure, and atmosphere gas is along pressure-reducing chamber 6 and piston
Between gap enter, now piston need to ensure to leave a certain distance with the air outlet in pressure-reducing chamber 6, make gas from pressure-reducing chamber
6 outlet sides enter gas passage, and are finally flowed out from gas outlet 5；When decompression defective valve, into the gas of decompressor air inlet 4
Body is high pressure, and under the promotion of pressure, piston starts to move, and most the air outlet in pressure-reducing chamber 6 is completely covered at last, avoids height
Body of calming the anger enters, and plays overload protective function, works as distress resolves, and piston recovers initial position in the presence of spring 9.Thus may be used
See, the installation of spring 9 and the design of elastic acting force need to ensure that the above-mentioned course of work can cross realization.
Above example only to illustrate the technical solution of the utility model and unrestricted, those of ordinary skill in the art couple
Other modifications or equivalent substitution that the technical solution of the utility model is made, without departing from technical solutions of the utility model
Spirit and scope, it all should cover in right of the present utility model.
Claims (4)
- A kind of 1. decompressor of anti-leakage of compressed gas, it is characterised in that：Including body, body interior offers gas passage And pressure-reducing chamber, the both ends of body set air inlet and gas outlet, pressure-reducing chamber to be connected with air inlet, and the outlet side bore in pressure-reducing chamber Less than inlet end bore, axially displaceable valve element is provided with gas passage, one end of valve element is placed in pressure-reducing chamber, and in place Spool end installation sealing ring and pad, pad at pressure-reducing chamber are located at sealing ring rear and fixed with valve element, pad and bullet Spring is fixedly connected, and pad can be along valve element in decompression indoor moving with sealing ring under the action of the spring.
- A kind of 2. decompressor of anti-leakage of compressed gas according to claim 1, it is characterised in that：The air inlet Bore is more than the bore of gas outlet.
- A kind of 3. decompressor of anti-leakage of compressed gas according to claim 1, it is characterised in that：The sealing ring Cross-sectional sizes are more than the cross-sectional sizes of pressure-reducing chamber outlet side, and pressure-reducing chamber outlet side can be covered and sealed by sealing ring, and sealing ring Cross-sectional sizes are less than the cross-sectional sizes of pressure-reducing chamber cavity.
- A kind of 4. decompressor of anti-leakage of compressed gas according to claim 1, it is characterised in that：The peace of the spring When the gas that dress need to ensure to enter air inlet is normal pressure, sealing ring is not covered in the outlet side in pressure-reducing chamber, when entrance air inlet When gas is high pressure, promote sealing ring that the air outlet in pressure-reducing chamber is completely covered under pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720518076.2U CN206802424U (en) | 2017-05-11 | 2017-05-11 | A kind of decompressor of anti-leakage of compressed gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720518076.2U CN206802424U (en) | 2017-05-11 | 2017-05-11 | A kind of decompressor of anti-leakage of compressed gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206802424U true CN206802424U (en) | 2017-12-26 |
Family
ID=60740552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720518076.2U Expired - Fee Related CN206802424U (en) | 2017-05-11 | 2017-05-11 | A kind of decompressor of anti-leakage of compressed gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206802424U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109595289A (en) * | 2018-12-29 | 2019-04-09 | 上海宇航系统工程研究所 | One kind preventing high pressure gas percussion mechanism |
-
2017
- 2017-05-11 CN CN201720518076.2U patent/CN206802424U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109595289A (en) * | 2018-12-29 | 2019-04-09 | 上海宇航系统工程研究所 | One kind preventing high pressure gas percussion mechanism |
| CN109595289B (en) * | 2018-12-29 | 2020-11-24 | 上海宇航系统工程研究所 | Device for preventing high-pressure gas from impacting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Shengzhou City, Zhejiang province 312400 Shaoxing city Sanjiang Street Chung Chuan Village No. 306 Patentee after: Shaoxing Glenn Electronic Technology Co.,Ltd. Address before: 312400 No.306, Zhongquan village, Sanjiang street, Shengzhou City, Shaoxing City, Zhejiang Province Patentee before: SHENGZHOU GELUN ELECTRONIC MACHINERY TECHNOLOGY Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171226 |