CN202204011U - An intelligent gas control valve - Google Patents
An intelligent gas control valve Download PDFInfo
- Publication number
- CN202204011U CN202204011U CN2011203303703U CN201120330370U CN202204011U CN 202204011 U CN202204011 U CN 202204011U CN 2011203303703 U CN2011203303703 U CN 2011203303703U CN 201120330370 U CN201120330370 U CN 201120330370U CN 202204011 U CN202204011 U CN 202204011U
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- CN
- China
- Prior art keywords
- control valve
- gas
- intelligent control
- valve
- pressure sensor
- 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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- 239000013078 crystal Substances 0.000 claims abstract description 14
- 239000003034 coal gas Substances 0.000 claims description 23
- 239000007789 gas Substances 0.000 description 41
- 239000000567 combustion gas Substances 0.000 description 6
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 239000003345 natural gas Substances 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 206010002660 Anoxia Diseases 0.000 description 1
- 241000976983 Anoxia Species 0.000 description 1
- 206010021143 Hypoxia Diseases 0.000 description 1
- 208000010476 Respiratory Paralysis Diseases 0.000 description 1
- 208000010513 Stupor Diseases 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 230000007953 anoxia Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 239000002817 coal dust Substances 0.000 description 1
- 238000010411 cooking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 235000014347 soups Nutrition 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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- Feeding And Controlling Fuel (AREA)
Abstract
本实用新型涉及一种煤气控制阀，特别是一种用于自动检测煤气管道出口压力的智能煤气控制阀。包括智能控制阀、压力传感器YL和控制电路，智能控制阀安装在煤气总阀门和煤气灶开关阀门之间，压力传感器YL装设于煤气灶开关阀门与煤气总阀门之间的软管中，控制电路的输出端与智能控制阀的智能控制阀线圈KA相连；控制电路包括电压比较器IC1、可变电阻RP、电阻R1、电阻R2、晶体二极管D1和晶体三极管VT1，压力传感器YL的输入端YL4接地，压力传感器YL的输出端YL2与电压比较器IC1的同相输入端相连；电阻R1与可变电阻RP串联后接地，电压比较器IC1的反相输入端与可变电阻RP的一端相连，可变电阻RP的另一端接地。
The utility model relates to a gas control valve, in particular to an intelligent gas control valve for automatically detecting the outlet pressure of a gas pipeline. The intelligent control valve comprises an intelligent control valve, a pressure sensor YL and a control circuit. The intelligent control valve is installed between a main gas valve and a gas stove switch valve. The pressure sensor YL is installed in a hose between the gas stove switch valve and the main gas valve. The output end of the control circuit is connected to an intelligent control valve coil KA of the intelligent control valve. The control circuit comprises a voltage comparator IC1, a variable resistor RP, a resistor R1, a resistor R2, a crystal diode D1 and a crystal triode VT1. The input end YL4 of the pressure sensor YL is grounded, and the output end YL2 of the pressure sensor YL is connected to the in-phase input end of the voltage comparator IC1. The resistor R1 is connected in series with the variable resistor RP and then grounded. The inverting input end of the voltage comparator IC1 is connected to one end of the variable resistor RP, and the other end of the variable resistor RP is grounded.
Description
Technical field
The utility model relates to a kind of control valve for coal gas, particularly a kind of Based Intelligent Control gas valve that is used for detecting automatically the gas piping outlet pressure.
Background technology
The kitchen is the main place that people carry out the cooking activity, and the combustion gas of use is main with natural gas and coal gas.It is to live when offering convenience that combustion gas has replaced traditional coal dust ball stove, and the incidence of the leakage accident of combustion gas is but linearly rising.When after the gas leak and when reaching finite concentration, run into fire (star) Shi Huihui and blast.The a large amount of consequences of leaking of coal gas also have in addition: the content of oxygen reduces in unit volume, makes the people produce anoxic, and threat to life.The high heat that burning produces is burnt the people; Airborne oxygen is consumed very soon during burning, and the people is suffocated.Natural gas is a kind of flammable explosive gas, has dual nature inflammable, fuel gas, lta.As take place to leak and can spread everywhere rapidly, cause person poisoning, burning and blast.During natural gas leaking, when airborne concentration reaches 25%, can cause human body anoxia and cause refreshing smart system damage, can show respiratory paralysis, stupor even death when serious.Can find out no matter which kind of combustion gas is in case generation leakage consequence is hardly imaginable.
The main cause of gas leakage takes place: 1, igniting is unsuccessful, the gas unburned that comes out; Boil when 2, using that soup, boiling water are put stove out by water or by the wind stove that goes out; 3, Guan Huohou, valve is not closed tight; 4, because Gas appliance damages the gas leakage that causes; 5, corrosive pipeline or valve, interface damage gas leakage; 6, connect the loosening gas leakage of hose aging be full of cracks or two ends of kitchen range; 7, the interface gas leakage that causes of outside destroy such as resettlement, finishing; 8, the gas leakage that causes of other reasons.Can see that drawing main cause sums up two words " gas leakage ".
Yet family kitchen now all is the cabinet type finishing; The control main valve of combustion gas is installed in the hidden cabinet; Satisfied this requirement attractive in appearance although it is so, but but tending to let cooks the people and ignores and forget and close the combustion gas main valve, has brought great potential safety hazard to safety.
Summary of the invention
The purpose of the utility model is a kind of intelligent control valve for coal gas to be provided to above-mentioned weak point, and intelligent control valve is installed in the middle of coal gas total valve and the gas cooker switch valve, and the variation through the gas piping outlet pressure comes the gas valve of closing automatically.
A kind of intelligent control valve for coal gas takes following technical scheme to realize: a kind of intelligent control valve for coal gas comprises intelligent control valve, pressure sensor YL and control circuit; Intelligent control valve is installed between coal gas total valve and the gas cooker switch valve; Pressure sensor YL is installed in the flexible pipe between gas cooker switch valve and the coal gas total valve, and the output of control circuit links to each other with the Based Intelligent Control valve coil KA of intelligent control valve.
Said control circuit comprises voltage comparator ic 1, variable resistor RP, resistance R 1, resistance R 2, crystal diode D1 and transistor VT1; The input YL4 ground connection of pressure sensor YL, the output YL2 of pressure sensor YL links to each other with the in-phase input end of voltage comparator ic 1; Ground connection after resistance R 1 is connected with variable resistor RP, the inverting input of voltage comparator ic 1 links to each other with the end of variable resistor RP, the other end ground connection of variable resistor RP; The output of voltage comparator ic 1 links to each other with the base stage of transistor VT1; The colelctor electrode of transistor VT1 links to each other with the end of crystal diode D1; The other end of crystal diode D1 links to each other with an end of resistance R 1; The emitter stage of transistor VT1 links to each other with an end of resistance R 2, the other end ground connection of resistance R 2; Based Intelligent Control valve coil KA is parallelly connected with crystal diode D1.
Described pressure sensor YL adopts commercially available 26PC type pressure sensor, has the advantage that the linearity is good, pressure limit is wide.
Operation principle: when the user opened or closed gas cooker switch, the pressure potential of coal gas must change in the gas pipe hose, thereby caused the variation of strain resistor resistance among the pressure sensor YL.Absolute pressure in the gas pipe hose is high more; Thereby the variation of strain resistor resistance is also just big more among the pressure sensor YL; Promptly become the signal of telecommunication to the mechanical change transitions of diaphragm seal, this signal is sent to control circuit, so just can reach the function that automatically shuts down coal gas.When user's kitchen range switch that turns on the gas-fire, manifold pressure descends, and intelligent control valve is opened automatically; The user closes gas cooker switch, and manifold pressure rises, and intelligent control valve is closed automatically.
When using intelligent control valve, regulate variable resistor RP, U
BBe set at pairing magnitude of voltage under the normal gas piping pressure, be the magnitude of voltage that coal gas should be exported at normal pressure in the gas piping.When closing gas cooker switch, when gas pressure is higher than normal value, U just
A>U
B, voltage comparator ic 1 output low level, transistor VT1 ends, and Based Intelligent Control valve coil KA must not be electric, is in open mode, normal air feed; Just think to close gas cooker switch, gas pressure descends and to make U
A<u
BThe time, voltage comparator ic 1 output high level, transistor VT1 conducting, Based Intelligent Control valve coil KA gets electric, and intelligent control valve is closed.
The utility model is simple in structure, reasonable in design, and intelligent control valve is installed in the middle of coal gas total valve and the gas cooker switch valve, and the variation through the gas piping outlet pressure comes the gas valve of closing automatically.Gas cooker switch, intelligent control valve and coal gas total valve are worked on the three areas simultaneously, and have effectively protected and have used gas safety.
Description of drawings:
Below will combine accompanying drawing that the utility model is described further:
Fig. 1 is the control circuit schematic diagram of the utility model.
Fig. 2 is the scheme of installation of the utility model.
The specific embodiment
With reference to accompanying drawing 1～2; A kind of intelligent control valve for coal gas comprises intelligent control valve 2, pressure sensor YL and control circuit; Intelligent control valve is installed between coal gas total valve 1 and the gas cooker switch valve 3; Pressure sensor YL is installed in the flexible pipe between gas cooker switch valve 3 and the coal gas total valve 1, and the output of control circuit links to each other with the Based Intelligent Control valve coil KA of intelligent control valve.
Said control circuit comprises voltage comparator ic 1, variable resistor RP, resistance R 1, resistance R 2, crystal diode D1 and transistor VT1; The input YL4 ground connection of pressure sensor YL, the output YL2 of pressure sensor YL links to each other with the in-phase input end of voltage comparator ic 1; Ground connection after resistance R 1 is connected with variable resistor RP, the inverting input of voltage comparator ic 1 links to each other with the end of variable resistor RP, the other end ground connection of variable resistor RP; The output of voltage comparator ic 1 links to each other with the base stage of transistor VT1; The colelctor electrode of transistor VT1 links to each other with the end of crystal diode D1; The other end of crystal diode D1 links to each other with an end of resistance R 1; The emitter stage of transistor VT1 links to each other with an end of resistance R 2, the other end ground connection of resistance R 2; Based Intelligent Control valve coil KA is parallelly connected with crystal diode D1.
Described pressure sensor YL adopts commercially available 26PC type pressure sensor, has the advantage that the linearity is good, pressure limit is wide.
When using intelligent control valve, regulate variable resistor RP, U
BBe set at pairing magnitude of voltage under the normal gas piping pressure, be the magnitude of voltage that coal gas should be exported at normal pressure in the gas piping.When closing gas cooker switch, when gas pressure is higher than normal value, U just
A>U
B, voltage comparator ic 1 output low level, transistor VT1 ends, and Based Intelligent Control valve coil KA must not be electric, is in open mode, normal air feed; Just think to close gas cooker switch, gas pressure descends and to make U
A<u
BThe time, voltage comparator ic 1 output high level, transistor VT1 conducting, Based Intelligent Control valve coil KA gets electric, and intelligent control valve is closed.
Claims (2)
1. intelligent control valve for coal gas; It is characterized in that: comprise intelligent control valve, pressure sensor YL and control circuit; Intelligent control valve is installed between coal gas total valve and the gas cooker switch valve; Pressure sensor YL is installed in the flexible pipe between gas cooker switch valve and the coal gas total valve, and the output of control circuit links to each other with the Based Intelligent Control valve coil KA of intelligent control valve;
Said control circuit comprises voltage comparator ic 1, variable resistor RP, resistance R 1, resistance R 2, crystal diode D1 and transistor VT1; The input YL4 ground connection of pressure sensor YL, the output YL2 of pressure sensor YL links to each other with the in-phase input end of voltage comparator ic 1; Ground connection after resistance R 1 is connected with variable resistor RP, the inverting input of voltage comparator ic 1 links to each other with the end of variable resistor RP, the other end ground connection of variable resistor RP; The output of voltage comparator ic 1 links to each other with the base stage of transistor VT1; The colelctor electrode of transistor VT1 links to each other with the end of crystal diode D1; The other end of crystal diode D1 links to each other with an end of resistance R 1; The emitter stage of transistor VT1 links to each other with an end of resistance R 2, the other end ground connection of resistance R 2; Based Intelligent Control valve coil KA is parallelly connected with crystal diode D1.
2. a kind of intelligent control valve for coal gas according to claim 1 is characterized in that: described pressure sensor YL adopts 26PC type pressure sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203303703U CN202204011U (en) | 2011-09-05 | 2011-09-05 | An intelligent gas control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203303703U CN202204011U (en) | 2011-09-05 | 2011-09-05 | An intelligent gas control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202204011U true CN202204011U (en) | 2012-04-25 |
Family
ID=45968132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203303703U Expired - Fee Related CN202204011U (en) | 2011-09-05 | 2011-09-05 | An intelligent gas control valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202204011U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267156A (en) * | 2013-05-27 | 2013-08-28 | 戴鑫 | Intelligent household water inflow control valve |
| CN106033968A (en) * | 2015-03-19 | 2016-10-19 | 富港电子（东莞）有限公司 | Power-saving circuit and electronic equipment with power-saving circuit |
-
2011
- 2011-09-05 CN CN2011203303703U patent/CN202204011U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267156A (en) * | 2013-05-27 | 2013-08-28 | 戴鑫 | Intelligent household water inflow control valve |
| CN103267156B (en) * | 2013-05-27 | 2018-01-02 | 戴鑫 | Intelligent household water inflow control valve |
| CN106033968A (en) * | 2015-03-19 | 2016-10-19 | 富港电子（东莞）有限公司 | Power-saving circuit and electronic equipment with power-saving circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120425 Termination date: 20140905 |
|
| EXPY | Termination of patent right or utility model |