CN207213263U - A kind of small-sized gas flow-stop valve - Google Patents
A kind of small-sized gas flow-stop valve Download PDFInfo
- Publication number
- CN207213263U CN207213263U CN201720003772.XU CN201720003772U CN207213263U CN 207213263 U CN207213263 U CN 207213263U CN 201720003772 U CN201720003772 U CN 201720003772U CN 207213263 U CN207213263 U CN 207213263U
- Authority
- CN
- China
- Prior art keywords
- outlet side
- gas
- pressure
- slide plate
- inlet end
- Prior art date
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- Expired - Fee Related
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Abstract
It the utility model is related to a kind of small-sized gas flow-stop valve, the gas flow-stop valve is by inlet end, outlet side, pressure slide plate and path conduits are formed, gas can flow to outlet side by the gap around pressure slide plate after the upper appendix of valve connection, when the appendix of outlet side occurs to burst or be on fire, because the pipeline of outlet side loses the constraint of gas valve, gas can spray at a high speed, the gas pressure of outlet side can drastically decline, now the gas pressure of inlet end can promote outlet movement of the pressure slide plate to outlet side immediately, because the pressure of gas acts on, the gas of inlet end can promote pressure slide plate that the outlet of outlet side is blocked, gas can stop exporting, so as to prevent fuel gas drastically sprays from causing bigger fire incident.
Description
Art
It the utility model is related to gas pipe equipment and valve.
Background technology
If the industrial fuel gas such as appendix such as acetylene, hydrogen, natural gas is damaged or explosion time, gas
When the acetylene gas that high speed ejection is easy to generation fire, especially welding is tempered, the high speed of gas sprays and burnt
The more safety of entail dangers to gas bomb, due to the fire that fuel gas occurs, in burning, gas can more increase the trend of burning, lead
The difficulty increase put out is caused, the security of the lives and property to people brings great hidden danger.
The content of the invention
To solve above-mentioned problem, the utility model provides a kind of small-sized gas flow-stop valve, the flow-stop valve by
Inlet end, outlet side, pressure slide plate and path conduits are formed, and gas can be by pressure slide plate week after the upper appendix of valve connection
The gap enclosed flows to outlet side, when the appendix of outlet side occurs to burst or be on fire, because the pipeline of outlet side loses gas
The constraint of valve, gas can spray at a high speed, and the gas pressure of outlet side can drastically decline, and now the gas pressure of inlet end can be stood
Outlet movement of the pressure slide plate to outlet side is promoted, because the pressure of gas acts on, the gas of inlet end can promote pressure to slide
Piece blocks the outlet of outlet side, and gas can stop exporting, so as to prevent fuel gas drastically sprays from causing bigger fire
Accident.
Brief description of the drawings
Make further details of explanation to the utility model below in conjunction with the accompanying drawings.
Fig. 1 is the outline structural diagram of gas flow-stop valve.
Fig. 2 is the internal structure schematic diagram of gas flow-stop valve.
Fig. 3 is the closure schematic diagram of gas flow-stop valve
Embodiment
As seen in Figure 1, the gas flow-stop valve is by inlet end (1), operating chamber (2), outlet side (3), path conduits
(4) and valve (5) composition, the front end connection inlet end (1) of operating chamber (2), rear end connect outlet side (3), and gas is by inlet end
(1) outlet side (3) is flowed to by operating chamber (2), the outside of operating chamber is provided with path conduits (4), path conduits (4) connection air inlet
End and outlet side, the opening and closing of valve (5) control access pipeline.
The space that operating chamber (2) is cylinder can be seen that by Fig. 2, Fig. 3, inside is provided with pressure slide plate (6), pressure
Slide plate is fixed in operating chamber by support (7), can be moved forward and backward, and pushes the one of inlet end (1) to by spring (8) under normal condition
Side, gas can flow to outlet side (3) by the gap around pressure slide plate (6), when the pressure in outlet side (3) drastically declines
The pressure at both ends can form pressure error, and the pressure of inlet end (1) interior gas can push pressure slide plate (6) to outlet side (3),
The passage of outlet side (3) can be closed under the sealing function of rubber seal (9), to prevent gas from drastically leaking, valve
(5) it is closed, pressure when gas enters inlet end (1) for the first time due to gas acts on, the internal pressure of operating chamber (2)
Power slide plate (6) can close the passage of outlet side (3), now need to open on valve (5), gas is direct by path conduits (4)
Into outlet side (3), after the gas pressure in inlet end and outlet side reaches balance, spring (8) pushes pressure slide plate (6) to
Inlet end, now inlet end is towards the passage opening of outlet side, and by valve (5) closing, equipment can enter working condition.
When the inlet end of the gas flow-stop valve connects the output channel of gas, the equipment that outlet side connection needs to use gas
Afterwards, because the pressure of inlet end (1) internal gas acts on, the internal pressure slide plate (6) of operating chamber (2) can slide to outlet immediately
End, pressure slide plate can close the passage of outlet side, now open valve (5), and the gases at high pressure inside inlet end can be by
Path conduits (4) enter outlet side (3), and pressure slide plate (6) exists after the gas pressure in inlet end and outlet side reaches balance
Inlet end (1) is slided in the presence of spring (8), gas can flow to outlet side (3) by the gap around pressure slide plate (6), will
Equipment enters working condition after valve (5) is closed, because the equipment using gas only consumes minimum gas when using gas
Body, the gas pressure in inlet end and outlet side can keep balancing, gas can by the gap around pressure slide plate by,
If the appendix of outlet side occurs to burst or be on fire, because the gas in outlet side rapidly leaks, outlet side internal gas
Pressure can dramatic decrease, now the high-pressure forces of gas can push pressure slide plate (6) to outlet side immediately in inlet end,
The passage of gas is cut off under the sealing function of rubber seal (9), you can is haveed the function that to prevent gas from continuing to leak, is prevented
Fuel gas continues fire incident caused by spraying.
Claims (4)
1. a kind of small-sized gas flow-stop valve, it is characterised in that by inlet end, outlet side, pressure slide plate, operating chamber and access tube
Road is formed, and the front end connection inlet end (1) of operating chamber (2), rear end connection outlet side (3), gas is by inlet end (1) by acting
Room (2) flows to outlet side (3), and the inside of operating chamber is provided with pressure slide plate (6), and the outside of operating chamber is provided with path conduits (4), leads to
Road pipeline is provided with valve (5), and gas can flow to outlet by the gap around pressure slide plate after the upper appendix of valve connection
End, when the appendix of outlet side occurs to explode or be on fire, the gas pressure inside outlet side can drastically decline, now inlet end
Gas pressure can promote outlet of the pressure slide plate to outlet side is mobile the outlet of outlet side is blocked immediately.
A kind of 2. small-sized gas flow-stop valve according to claim 1, it is characterised in that；Outlet side (3) and pressure slide plate
(6) contact surface is provided with rubber seal (9).
A kind of 3. small-sized gas flow-stop valve according to claim 1, it is characterised in that；Operating chamber (2) is cylinder
Space, inside are provided with pressure slide plate (6).
A kind of 4. small-sized gas flow-stop valve according to claim 1, it is characterised in that；Pressure slide plate (6) passes through support
(7) it is fixed in operating chamber (2), can moves forward and backward, push a side of inlet end (1) under normal condition to by spring (8), gas is
Outlet side (3) can be flowed to by the gap around pressure slide plate (6), the pressure at both ends when the pressure in outlet side (3) drastically declines
Power can form pressure error, and the pressure of inlet end (1) interior gas can push pressure slide plate (6) to outlet side (3), in rubber seal
The passage of outlet side (3) can be closed by enclosing under the sealing function of (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720003772.XU CN207213263U (en) | 2017-01-03 | 2017-01-03 | A kind of small-sized gas flow-stop valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720003772.XU CN207213263U (en) | 2017-01-03 | 2017-01-03 | A kind of small-sized gas flow-stop valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207213263U true CN207213263U (en) | 2018-04-10 |
Family
ID=61809155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720003772.XU Expired - Fee Related CN207213263U (en) | 2017-01-03 | 2017-01-03 | A kind of small-sized gas flow-stop valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207213263U (en) |
-
2017
- 2017-01-03 CN CN201720003772.XU patent/CN207213263U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| 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: 20180410 Termination date: 20200103 |