CN2901094Y - Gas leakage protector - Google Patents
Gas leakage protector Download PDFInfo
- Publication number
- CN2901094Y CN2901094Y CN 200620033445 CN200620033445U CN2901094Y CN 2901094 Y CN2901094 Y CN 2901094Y CN 200620033445 CN200620033445 CN 200620033445 CN 200620033445 U CN200620033445 U CN 200620033445U CN 2901094 Y CN2901094 Y CN 2901094Y
- Authority
- CN
- China
- Prior art keywords
- gas
- relay
- time
- gas leakage
- automatically
- Prior art date
- 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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- Magnetically Actuated Valves (AREA)
Abstract
Disclosed is a fuel gas leakage protector which comprises an electric circuit and a gas circuit. A fuel-gas-proof protector automatic control electric circuit comprises a time-lag automatic closing gas electric circuit, a sensor automatic closing gas electric circuit, an electromagnetic valve exclusively for fuel gas R[1] and a manual driving by-pass valve. The time-lag automatic closing gas electric circuit comprises a protective tube F[1], a power switch Q[1], a manual driving stop button SB[1], a manual driving start button SB[2], a relay KA[1], time relay KT[1], an electromagnetic valve exclusively for fuel gas ZCM-15 and an electromagnetic valve Y[1]. The sensor automatic closing gas electric circuit comprises a transformer B, a sensor exclusively for fuel gas QM-5, a commutation diode V[4]- V[7], a filter capacitor C[1], a voltage regulator diode of 12 volts V[2], an adjustable resistance R[2], a mono-directional thyristor V[3], a relay KA[2], a current-limiting resistance R[1] and an indicator for fuel gas leakage V[1]. The utility model has the advantage that the fuel gas leakage protector not only can automatically close gas when in safe but also can automatically close gas when the fuel gas leakage happens, which solves the former safety-trap.
Description
Technical field
The utility model relates to electrical equipment control, is applicable to the leak protection of natural gas and liquefied gas.
Technical background
In life, this speech of gas leakage is very familiar, and its result causes the lighter's stupor of poisoning, and weight person causes personal injury, even explosion accident occurs.There is potential safety hazard in gas leakage in a word, has to attract much attention.Traditional stop valve has not satisfied safe demand.For example the water of the soup in the container overflows stop valve powerless when using combustion gas.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, provides a kind of and can close gas safely automatically, can close the gas leakage protector of gas again after gas leakage takes place automatically.
The purpose of this utility model is achieved in that
The gas leakage protector comprises circuit, gas circuit, and gas leakage protector automatic control circuit closes pneumoelectric road and sensor automatically by time-delay and closes the pneumoelectric road automatically, combustion gas special electromagnetic valve R
1And the hand by-pass valve composition, connect by circuit therebetween; Pneumoelectric route protective tube F is closed in time-delay automatically
1, power switch Q
1, manual stop button SB
1, starting button SB
2, relay K A
1, time relay KT
1, general time adjusting range 0～60 minute, combustion gas special electromagnetic valve ZCM-15 type, magnetic valve Y
1Form, connect by circuit therebetween; Pneumoelectric routing transformer B, combustion gas sensor special QM-5, commutation diode V are closed in induction automatically
4-V
7, filter condenser C
1, 12 volts of Zener diode V
2, adjustable resistance R
2, unidirectional thyristor V
3, relay K A
2, current-limiting resistance R
1, gas leakage indicator lamp V
1Form, connect by circuit therebetween.
Operation principle: opening power, Q closes a switch
1Induction this moment is started working on pneumoelectric road, pass automatically, presses start button SB
2, KA
1Coil obtains.The latching circuit self-locking, time relay KT
1, obtain electricity and enter time status.Magnetic valve Y
1Also obtain electricity and open, the beginning air feed.When not having gas leakage when normal use.Time relay KT
1Time-delay disconnect break contact, can be when you adjust separated KA
1The control loop of coil.Make magnetic valve Y
1Dead electricity and close source of the gas.Realize time-delay pass gas automatically, the adjusting range of the time relay generally is on 0～60 minute.You can adjust arbitrarily.When using in the gas process, gas leakage has taken place, and to time-delay automatically during the gas of pass.The combustion gas meeting of diffusion is received by sensor QM-5.QM-5 exports a signal at once through resistance R
2Promote unidirectional thyristor V
3Conducting.IGCT V
3Conducting, make relay K A
2Coil obtain.Automatically close KA in the pneumoelectric road and be connected on time-delay this moment
2Break contact can disconnect KA
1Coil control circuit makes relay K A
1Coil losing electricity is closed source of the gas.KA
2Moving together contact can light gas leakage indicator lamp V
1, do not end owing to unidirectional thyristor can not be subjected to weakening of sensor signal.As at V
1Under the bright situation, need to close switch Q down
1, close again then and just can restart magnetic valve Y
1This electrical equipment can not normally use under power-off condition.The user can only use gas with the other by-passing valve of magnetic valve temporarily.Must close by-passing valve with gas after intact.
The utility model designs and make a cover can close gas safely automatically, can close the gas leakage protector of gas again automatically after gas leakage takes place, solution potential safety hazard in the past.When the soup in the container or water overflow flame is watered when putting out, go out when the work of anxiety and forget when closing burnt gas switch, when the combustion gas user is taken place unfortunate in the gas process suddenly or given birth to disease and all can help you to close source of the gas when not having enough time to cut off source of the gas etc.
Description of drawings
Fig. 1 is the electric road of a utility model principle schematic;
Fig. 2 is the utility model gas circuit principle schematic diagram;
Among the figure: the 1-hand by-pass valve; The 2-magnetic valve; The 3-air inlet pipe; The 4-escape pipe.
The specific embodiment
As shown in Figure 1, 2, the gas leakage protector comprises circuit, gas circuit, and gas leakage protector automatic control circuit closes pneumoelectric road and sensor automatically by time-delay and closes the pneumoelectric road automatically, combustion gas special electromagnetic valve R
12 and hand by-pass valve 1 form, pneumoelectric route protective tube F is closed in time-delay automatically
1, power switch Q
1, manual stop button SB
1, starting button SB
2, relay K A
1, time relay KT
1(general time adjusting range 0～60 minute), combustion gas special electromagnetic valve ZCM-15 type, magnetic valve Y
12 form; Pneumoelectric routing transformer B, combustion gas sensor special QM-5, commutation diode V are closed in induction automatically
4-V
7, filter condenser C
1, 12 volts of Zener diode V
2, adjustable resistance R
2, unidirectional thyristor V
3, relay K A
2, current-limiting resistance R
1, gas leakage indicator lamp V
1Form.
As shown in Figure 1, 2, the gas system is closed in time-delay automatically: plug in and open switch Q
1, induction this moment is closed the pneumoelectric road automatically and is at first entered the duty that gas is closed in induction automatically.Press start button SB
2, power supply is through relay K A
2Break contact KA
2, the time-delay of time relay KT disconnects break contact KT
1Power supply is delivered to relay K A
1Coil, make KA
1Coil obtains.Relay K A
1Coil obtain after the electricity its two pairs of moving together contact closures.Start button SB
2By relay K A
1First pair of moving together contact self-locking, time relay coil KT
1, by relay K A
1Second pair of moving together contact, obtain electricity and enter time-delay and automatically close the gas state that clocks.Gas electromagnetic valve Y
1Also by relay K A
1The 3rd pair of moving together contact obtain electricity and open.The beginning air feed does not under normal circumstances have the gas leakage accident, and the time-delay of the time relay disconnects the time automatic disconnection relay K A that break contact can adjusted
1Coil power, make relay K A
1Coil losing electricity and quit work.As relay K A
1Coil losing electricity after.Its three pairs of moving together contact all disconnect.Latching circuit is in self-locking, time relay KT
1Coil also dead electricity stop to clock, be magnet valve Y
1Coil also automatically close airway dysfunction because of dead electricity realizes delaying time.
What as shown in Figure 1, 2, the gentle transformer B of gas was automatically closed in induction secondaryly provides two groups of power supplys.One group of heater that provides the 5V alternating current to supply with combustion gas sensor special QM-5, second group of alternating current that 12V is provided is through diode V
4～V
7After the rectification, through capacitor C
1Filtering is by Zener diode V
2Voltage stabilizing give relay K A
2The dc source of 12V is provided.Gas leakage has taken place when using in the combustion gas.With not to automatically closing the time of gas and not found by the people.Combustion gas is touching combustion gas sensor special QM-5, and the heater of combustion gas sensor special makes two interelectrode resistance of sensor reduce suddenly under the effect of combustion gas.But make the control utmost point of unidirectional thyristor pass through the adjuster resistance R
2Obtain a Continuity signal, use unidirectional thyristor V
3Conducting, unidirectional thyristor V
3Conducting make relay K A
2Coil obtain electricity and move.Relay K A
2Obtain a pair of break contact that the time-delay of electricity back series connection closes in the pneumoelectric road automatically and just disconnected relay K A
1Coil power, make relay K A
1Also dead electricity and disconnecting of three pairs of moving together contact, latching circuit is not in self-locking, time relay institute dead electricity stops to clock.Magnetic valve is dead electricity and cutting out also.While relay K A
2A pair of moving together contact, closed gas leakage indicator lamp V
1Lighted.Because unidirectional thyristor V
3Can not be subjected to combustion gas sensor special QM-5 output signal reduce end, so if start magnetic valve Y once more
12 must powered-down switch Q
1, and then power turn-on switch Q
1Just can restart magnetic valve Y
12.It is 170～230V that the utility model circuit is fit to voltage.If the too low sensitivity that can reduce combustion gas sensor special QM-5 of voltage.If overtension can damage electronic component, or make unidirectional thyristor V
3Misoperation.The gas leakage protector is having a power failure and can not use, and usefulness gas can be opened hand by-pass valve 1 and use gas at this moment, must close hand by-pass valve 1 immediately after still finishing with gas, and intake valve 3, air outlet valve 4 are gas valve.
Claims (1)
1. a gas leakage protector comprises circuit, gas circuit, it is characterized in that: gas leakage protector automatic control circuit closes pneumoelectric road and sensor automatically by time-delay and closes the pneumoelectric road automatically, combustion gas special electromagnetic valve R
1(2) and hand by-pass valve (1) form, connect by circuit therebetween; Pneumoelectric route protective tube F is closed in time-delay automatically
1, power switch Q
1, manual stop button SB
1, starting button SB
2, relay K A
1, time relay KT
1, combustion gas special electromagnetic valve ZCM-15 type, magnetic valve Y
1(2) form, connect by circuit therebetween; Pneumoelectric routing transformer B, combustion gas sensor special QM-5, commutation diode V are closed in induction automatically
4-V
7, filter condenser C
1, 12 volts of Zener diode V
2, adjustable resistance R
2, unidirectional thyristor V
3, relay K A
2, current-limiting resistance R
1, gas leakage indicator lamp V
1Form, connect by circuit therebetween.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620033445 CN2901094Y (en) | 2006-03-17 | 2006-03-17 | Gas leakage protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620033445 CN2901094Y (en) | 2006-03-17 | 2006-03-17 | Gas leakage protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2901094Y true CN2901094Y (en) | 2007-05-16 |
Family
ID=38085258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620033445 Expired - Fee Related CN2901094Y (en) | 2006-03-17 | 2006-03-17 | Gas leakage protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2901094Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922613A (en) * | 2009-06-15 | 2010-12-22 | 上海远动科技有限公司 | Fuel gas automatic current limiting control method |
| CN102889200A (en) * | 2011-07-22 | 2013-01-23 | 上海达夫能源科技有限公司 | Natural gas compressor control system capable of realizing automatic timing and automatic gas-leakage protection |
-
2006
- 2006-03-17 CN CN 200620033445 patent/CN2901094Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922613A (en) * | 2009-06-15 | 2010-12-22 | 上海远动科技有限公司 | Fuel gas automatic current limiting control method |
| CN101922613B (en) * | 2009-06-15 | 2014-04-02 | 上海远动科技有限公司 | Fuel gas automatic current limiting control method |
| CN102889200A (en) * | 2011-07-22 | 2013-01-23 | 上海达夫能源科技有限公司 | Natural gas compressor control system capable of realizing automatic timing and automatic gas-leakage protection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070516 |