CN2321998Y - Gas supply self-cutting off pressure-reducing valve for fire disaster - Google Patents
Gas supply self-cutting off pressure-reducing valve for fire disaster Download PDFInfo
- Publication number
- CN2321998Y CN2321998Y CN 98209869 CN98209869U CN2321998Y CN 2321998 Y CN2321998 Y CN 2321998Y CN 98209869 CN98209869 CN 98209869 CN 98209869 U CN98209869 U CN 98209869U CN 2321998 Y CN2321998 Y CN 2321998Y
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- CN
- China
- Prior art keywords
- pressure
- reducing valve
- valve
- gas
- reduction valve
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- 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.)
- Expired - Fee Related
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- Mechanically-Actuated Valves (AREA)
Abstract
The utility model relates to a gas supply self-cutting off pressure-reducing valve for a fire disaster, which is characterized in that a plugging device which automatically blocks a gas intake duct of the pressure-reducing valve following temperature rise and prevents the gas from entering a gas chamber of the pressure-reducing valve is arranged between the gas intake duct of the pressure-reducing valve and a pressure-reducing gas chamber of the pressure-reducing valve. The pressure-reducing valve with the plugging device has the advantages of simple structure, scientific rationality and safety. After the fire disaster happens when a temperature in the position of the pressure-reducing valve reaches a certain height, the plugging device automatically starts and prevents form exhausting the gas, thereby, fire disaster enlargement and steel bottle explosion occurrence are prevented.
Description
The utility model relates to safety valve, especially a kind of after fire takes place, the reduction valve that can cut off gas circuit automatically.
At present, the city dweller is more and more with cooking stove and water heater that liquefied petroleum gas acts as a fuel, the problem that the safe handling liquid gas has become people to be concerned about.For this reason, people have at first given concern at aspects such as gas leaks, and design the different safe anti-gas-leak reduction valve of theory structure, have realized that gas leak closes reduction valve automatically.The liquid gas usage safety performance is improved greatly.But, this class reduction valve can only be when gas leakage could automatic-closing valve, and after fire takes place, when gas does not leak, then can not effectively cut off source of the gas.Liquefied gas pipeline under this opening state will be given the control of fire undoubtedly and puts out a fire to save life and property and bring further difficulty and hidden danger.
The purpose of this utility model is the defective that exists at above-mentioned reduction valve, designs a kind of fire gas circuit reduction valve of autotomying.
The fire gas circuit of the present utility model reduction valve of autotomying comprises reduction valve, it is characterized in that: between the admission line of reduction valve and decompression air chamber, be provided with one and raise and seal the reduction valve admission line voluntarily with temperature, stop gas to enter the blocking device of reduction valve air chamber, this device is made of at the easy clinker of push rod threaded end corresponding to the sealing block and the tandem arrangement of admission line exhaust port flexible matrix, cover body, built-in valve rod, push rod screw, the valve stem tip of valve stem casing, spring and valve stem casing that be arranged in the cover body.
The autotomy design of combustion gas reduction valve of fire gas circuit of the present utility model is scientific and reasonable, simple in structure, safe and reliable.After fire takes place, when reduction valve present position temperature reaches certain altitude, the blocking device that is arranged between reduction valve admission line and the air chamber will start voluntarily, close the reduction valve admission line, thereby stop the discharging of combustion gas, reach the generation that prevents that fire from enlarging and steel cylinder explodes.
Concrete structure of the present utility model is provided in detail by the following drawings and embodiment.
Fig. 1 is the autotomy structural representation of reduction valve of fire gas circuit.
Embodiment: can be clear that from Fig. 1, the autotomy pressure reduction structure of reduction valve of fire gas circuit is identical with existing reduction valve, it is characterized in that at the valve body 2 bottom inflow pipelines 3 of reduction valve 1 and the air chamber 6 that constitutes by valve body 2 and flexible matrix 5 of increase between the air chamber 4 that reduces pressure, flexible matrix 5 is fixed on the valve body 2 by cover body 7, the center of flexible matrix 5 is provided with a sealing block 10 by valve rod 9 rests corresponding to admission line 3 to the exhaust port 8 of air chamber 6 exhausts, one end of valve rod 9 is passed by flexible matrix 5 center holes and is fixing with the valve stem casing 11 that is arranged on flexible matrix 5 one sides, the outer sheathed springs 12 of valve stem casing 11, the push rod screw 14 of tandem arrangement on easy clinker 13 penetrated by the center hole of cover body 7 bottoms and is connected with valve stem casing 11.Normal condition lower push rod screw 14 since easily clinker 13 pads hold, be arranged on valve stem casing 11 outer springs 12 and be compressed, flexible matrix 5 is indeformable, the sealing block 10 that is arranged on valve rod 9 ends breaks away from the exhaust port 8 of admission lines, reduction valve 1 is a normal operating condition.After fire takes place, the condition of a fire is during near reduction valve 1, the high temperature that the combustion fire causes will make easy clinker 13 dissolvings of the blocking device of reduction valve bottom, push rod screw 14 lose easy clinker 13 pads hold with 12 effects of valve stem casing 11 outer springs under, valve stem casing 11 is risen, flexible matrix 5 distortion, thus make valve rod 9 sealing blocks 10 that move up fit in the exhaust port 8 of reduction valve admission line 3, decompression air chamber 4 air feed that stop admission line 3 to continue to reduction valve 1 reach the purpose of this utility model.
Claims (1)
1, a kind of fire gas circuit reduction valve of autotomying, the existing structure that comprises reduction valve, it is characterized in that: being provided with one between the admission line (3) of reduction valve and decompression air chamber (4) can raise and seal reduction valve admission line (3) voluntarily with temperature, stop gas to enter the blocking device of reduction valve decompression air chamber (4), this installs by flexible matrix (5), cover body (7), be arranged on the valve stem casing (11) in the cover body (7), spring (12), and the built-in valve rod (9) of valve stem casing (11), push rod screw (14), valve rod (9) top constitutes at the easy clinker (13) of push rod screw (14) end corresponding to the sealing block (10) and the tandem arrangement of admission line (3) exhaust port (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98209869 CN2321998Y (en) | 1998-02-13 | 1998-02-13 | Gas supply self-cutting off pressure-reducing valve for fire disaster |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98209869 CN2321998Y (en) | 1998-02-13 | 1998-02-13 | Gas supply self-cutting off pressure-reducing valve for fire disaster |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2321998Y true CN2321998Y (en) | 1999-06-02 |
Family
ID=33965102
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98209869 Expired - Fee Related CN2321998Y (en) | 1998-02-13 | 1998-02-13 | Gas supply self-cutting off pressure-reducing valve for fire disaster |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2321998Y (en) |
-
1998
- 1998-02-13 CN CN 98209869 patent/CN2321998Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |