CN104214402A - Household gas pipeline safety control valve and method based on flame monitoring - Google Patents
Household gas pipeline safety control valve and method based on flame monitoring Download PDFInfo
- Publication number
- CN104214402A CN104214402A CN201410384695.8A CN201410384695A CN104214402A CN 104214402 A CN104214402 A CN 104214402A CN 201410384695 A CN201410384695 A CN 201410384695A CN 104214402 A CN104214402 A CN 104214402A
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- Prior art keywords
- flare
- fire
- control circuit
- valve
- circuit
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0675—Electromagnet aspects, e.g. electric supply therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
- F16K31/06—Actuating devices; Operating means; Releasing devices electric; magnetic using a magnet, e.g. diaphragm valves, cutting off by means of a liquid
- F16K31/0644—One-way valve
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
The invention discloses a household gas pipeline safety control valve and method based on flame monitoring. The safety control valve comprises a flame signal detection circuit, a control circuit board and an electromagnetic valve, wherein each flame signal collecting conducting wire of the flame signal detection circuit is arranged on each to-be-detected gas device, each output end of the flame signal detection circuit is connected with the collecting signal input end of the control circuit board, the control signal output end of the control circuit board is connected with the electromagnetic valve through a driving circuit, and the electromagnetic valve is arranged on a pipeline in front of a gas meter. The safety control valve solves the technical problem of the household gas pipeline safety control valve that the indoor gas system is always in the normally closed state when the gas is not used.
Description
Technical field
The present invention relates to a kind of domestic gas pipeline Safety control valve based on flame monitoring and method of controlling security, especially be a kind ofly installed on the domestic gas pipeline before gas meter, by monitoring burner flame, automatically control valve and the method for controlling security of indoor gas main pipe rail break-make.
Background technique
In current indoor gas system, each fuel gas path only has two valves of connecting, indoor gas main valve before a gas meter, before stove or water heater early gate, and in user's using process, before stove or water heater early gate be in open mode always, make indoor gas system be in normally open before burner always.Although there are some applicable indoor safety techniques at present, be substantially all make indoor gas system be in normally open whether to leak to detect combustion gas always, or cut off fuel gas path by safety product when leaking.
Summary of the invention
The invention provides a kind of domestic gas pipeline Safety control valve based on flame monitoring and method, to solve domestic gas pipeline Safety control valve when without gas, make indoor gas system be in the technical problem of normally off.
In order to realize foregoing invention object, technological scheme of the present invention is as follows:
Based on the domestic gas pipeline Safety control valve of flame monitoring, comprise flare up fire testing circuit, control circuit board and solenoid valve; Each flare up fire of described flare up fire testing circuit gathers wire and is arranged on each detected Gas appliance, each road output terminal of described flare up fire testing circuit is connected with the collection signal input end of described control circuit board respectively, and the control signal output terminal of described control circuit board is connected with solenoid valve by drive circuit; Described solenoid valve to be arranged on before gas meter on pipeline.
Described flare up fire testing circuit mainly comprises three groups of thermocouple filtering, amplifies, compares, delay circuit, this flare up fire testing circuit is connected with the logic control circuit of described control circuit board, and logic control circuit output control terminal connects solenoid valve and drive circuit.
Described logic control circuit input end is also connected with manually opened electromagnetic valve circuit and hand-operated forced shut electromagnetic valve circuit; The delay circuit that described manually opened electromagnetic valve circuit comprises a button and triggered by this button; Described hand-operated forced shut electromagnetic valve circuit is a button directly accessing logic control circuit input end.
Described solenoid valve and drive circuit can be connected with a wireless receiving controller, and described wireless receiving controller receives the switch command that passive and wireless switch sends.
Based on the domestic gas pipeline method of controlling security of flame monitoring, the blowout protection flare up fire that wire gathers each burner is gathered by the flare up fire be connected with control circuit board, judge whether to there is one or several flare up fire by control circuit board internal program, if there is any one flare up fire, then solenoid valve is kept to be in opening state by electromagnetic valve wire, if judge there is not any one flare up fire, then control circuit board internal program starts timing, if there is not any flare up fire within a period of time of regulation, then then drive valve closing by electromagnetic valve wire, if during this period of time, there are again any one or more flare up fire, then stop timing, keep solenoid valve to be still in opening state.
Effect of the present invention is: by designing a kind of valve be arranged on before gas meter on pipeline, gas burning system is kept to be in aeration status indoors when gas utensil uses, once without burner with, monitor without flare up fire, this gas valve is closed automatically by the delay time section of regulation, ensure that user is being in closed condition without gas burning system during gas, realizes the control automatically to indoor gas system switching.Fundamentally reduce the leakage of indoor gas system, reduce potential safety hazard.
Accompanying drawing explanation
Fig. 1 is composition of the present invention and scheme of installation.
Fig. 2 is theory diagram of the present invention.
Fig. 3 is one embodiment of the present of invention circuit diagram.
Fig. 3-1,3-2,3-3 are the Breakdown Circuit Diagram of Fig. 3.
Fig. 4 is the circuit diagram that solenoid valve is connected with wireless receiving controller.
Fig. 5 is the schematic diagram of passive and wireless switch.
Embodiment
Composition structure of the present invention and installing and using see Fig. 1,2.
The domestic gas pipeline Safety control valve that the present invention is based on flame monitoring comprises flare up fire testing circuit, control circuit board and solenoid valve; Each flare up fire of described flare up fire testing circuit gathers wire and is arranged on each detected Gas appliance, each road output terminal of described flare up fire testing circuit is connected with the collection signal input end of described control circuit board respectively, and the control signal output terminal of described control circuit board is connected with solenoid valve by drive circuit; Described solenoid valve to be arranged on before gas meter on pipeline.
The present invention gathers by the flare up fire be connected with control circuit board the blowout protection flare up fire that wire gathers the burner such as kitchen range, water heater, judge whether to there is one or several flare up fire by control circuit board internal program, if there is any one flare up fire, then solenoid valve is kept to be in opening state by electromagnetic valve wire, if judge there is not any one flare up fire, then control circuit board internal program starts timing, if there is not any flare up fire within a period of time of regulation, then then drive valve closing by electromagnetic valve wire; If during this period of time, there are again any one or more flare up fire, then stop timing, keep solenoid valve to be still in opening state.This control realizing automatically to indoor gas system switching by monitoring flame aspect, solves that current domestic gas system is in normally open, various safety technique passive detection leaks the drawback existed.
Working procedure of the present invention:
The flare up fire wires 1,2,3 such as kitchen range 8, water heater 7 are connected with control circuit board 6, and control circuit board 6 is connected with solenoid valve 5 by electromagnetic valve wire 4.Before solenoid valve 5 is arranged on domestic gas pipeline gas meter 9, control circuit board is arranged on the position of convenient operation in kitchen.Before starting to start burner, manually boot start key on control circuit board, controller is made to send valve opening order, solenoid valve 5 is opened by electromagnetic valve wire 4, then kitchen range with blowout protection are opened or/and water heater, by flare up fire wire 1, 2, 3 gather kitchen range or/and the flare up fire of water heater, and monitor, controller judges whether to there is one or several flare up fire by flare up fire testing circuit, if there is any one flare up fire, then controller is given an order, solenoid valve 5 is kept to be in opening state by electromagnetic valve wire 4, if judge there is not any one flare up fire, then controller starts timing, if there is not any flare up fire within a period of time of regulation, then then solenoid valve 5 is driven to close by electromagnetic valve wire 4, if during this period of time, occur again any one or more flare up fire, then controller stops timing, keeps solenoid valve 5 to be still in opening state.
Embodiments of the invention are see Fig. 3, Fig. 3-1, Fig. 3-2, Fig. 3-3: this main circuit will comprise three groups of thermocouple filtering, amplifies, compares, delay circuit, and manually opened electromagnetic valve circuit and hand-operated forced shut electromagnetic valve circuit.
The millivolt level signal that thermocouple produces is input in the integrated instrumentation amplifier of AD620 after capacitance-resistance lower pass-filter, and voltage is after amplifying in input voltage comparator circuit, and comparator circuit output signal is passed in the delay circuit be made up of 555 integrated chips.The signal exported by delay circuit is input in logic control circuit.
Manually opened electromagnetic valve circuit is also the delay circuit of a use 555 integrated chip composition, triggers and solenoid valve once can be kept to open 20 second time, export and be also linked in logic control circuit with a button.
Hand-operated forced pass electromagnetic valve circuit directly accesses in logic control circuit, at any time, as long as close switch just can positive closing solenoid valve.
Working principle: at ordinary times need not fire time, solenoid valve is closed condition.Time with fire, first click manual open electromagnetic valve switch, the time that now solenoid valve is opened about 20 seconds guarantees sufficient source of the gas.Strike sparks during this period, flame heat hot galvanic couple, thermocouple produces a larger voltage signal.Voltage signal amplifies after filtering through over-voltage comparator, exports a high level, and delay circuit is failure to actuate output high level, after logic control circuit, drives solenoid valve to be in opening state always.When need not fire time, fire extinguish, electric thermo-couple temperature declines gradually.When temperature drops to 60 DEG C, thermocouple produce voltage drop, through magnifiation in depth comparatively after, output low level, now delay circuit start, delay time is adjustable by the resistance in circuit.After the time, delay circuit output low level, then after logic control circuit, Controlling solenoid valve is closed.Wherein at any time, as long as closed positive closing switch can ensure closed electromagnetic valve.In this circuit, the switch of solenoid valve is driven by a power MOS pipe IRF510.
Described solenoid valve and drive circuit can be connected with a wireless receiving controller 11, and described wireless receiving controller 11 receives the switch command that passive and wireless switch 10 sends.Passive and wireless switch 10 does not need external any power supply, automatically supports self work by generating electrical power from mechanical power; Wireless receiving controller 11 is by 220V mains-supplied; Solenoid valve 5 is connected on wireless receiving controller 11 by control line of electromagnetic valve 4.
See Fig. 4, Fig. 5: these two figure are schematic diagram, because circuit is relatively simple.Controller forms primarily of three parts: passive and wireless switch 10, wireless receiving controller 11 and solenoid valve 5, and wherein wireless receiving controller 11 is electrically connected with 220V city by 220V power line 12.
Often all can send a wireless control signal by a passive and wireless switch 10, after wireless receiving controller 11 receives control signal, corresponding switch control rule be carried out to solenoid valve 5, open or close solenoid valve 5 with this.
The benefit of this design is that passive and wireless switch itself does not need battery, and therefore facilitate and install and be easy to safeguard, reliability is stronger.
Claims (5)
1., based on a domestic gas pipeline Safety control valve for flame monitoring, it is characterized in that, comprise flare up fire testing circuit, control circuit board and solenoid valve; Each flare up fire of described flare up fire testing circuit gathers wire and is arranged on each detected Gas appliance, each road output terminal of described flare up fire testing circuit is connected with the collection signal input end of described control circuit board respectively, and the control signal output terminal of described control circuit board is connected with solenoid valve by drive circuit; Described solenoid valve to be arranged on before gas meter on pipeline.
2. the domestic gas pipeline Safety control valve based on flame monitoring according to claim 1, it is characterized in that, described flare up fire testing circuit mainly comprises three groups of thermocouple filtering, amplifies, compares, delay circuit, this flare up fire testing circuit is connected with the logic control circuit of described control circuit board, and logic control circuit output control terminal connects solenoid valve and drive circuit.
3. the domestic gas pipeline Safety control valve based on flame monitoring according to claim 2, it is characterized in that, described logic control circuit input end is also connected with manually opened electromagnetic valve circuit and hand-operated forced shut electromagnetic valve circuit; The delay circuit that described manually opened electromagnetic valve circuit comprises a button and triggered by this button; Described hand-operated forced shut electromagnetic valve circuit is a button directly accessing logic control circuit input end.
4. the domestic gas pipeline Safety control valve based on flame monitoring according to claim 1, it is characterized in that, described solenoid valve and drive circuit are connected with a wireless receiving controller, and described wireless receiving controller receives the switch command that passive and wireless switch sends.
5. the domestic gas pipeline method of controlling security based on flame monitoring, it is characterized in that, the blowout protection flare up fire that wire gathers each burner is gathered by the flare up fire be connected with control circuit board, judge whether to there is one or several flare up fire by control circuit board internal program, if there is any one flare up fire, then solenoid valve is kept to be in opening state by electromagnetic valve wire, if judge there is not any one flare up fire, then control circuit board internal program starts timing, if there is not any flare up fire within a period of time of regulation, then then drive valve closing by electromagnetic valve wire, if during this period of time, there are again any one or more flare up fire, then stop timing, keep solenoid valve to be still in opening state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410384695.8A CN104214402B (en) | 2014-08-07 | 2014-08-07 | Household gas pipeline safety control method based on flame monitoring |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410384695.8A CN104214402B (en) | 2014-08-07 | 2014-08-07 | Household gas pipeline safety control method based on flame monitoring |
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| Publication Number | Publication Date |
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| CN104214402A true CN104214402A (en) | 2014-12-17 |
| CN104214402B CN104214402B (en) | 2017-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410384695.8A Active CN104214402B (en) | 2014-08-07 | 2014-08-07 | Household gas pipeline safety control method based on flame monitoring |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109444641A (en) * | 2018-12-18 | 2019-03-08 | 成都前锋电子仪器有限责任公司 | A kind of line detection device of flow meter controller |
| CN111750277A (en) * | 2019-03-26 | 2020-10-09 | 济南点燃智能科技有限公司 | User side gas metering safety system |
Citations (6)
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|---|---|---|---|---|
| CN2184873Y (en) * | 1993-10-23 | 1994-12-07 | 王士菁 | Gas self-control safety device |
| JPH07208632A (en) * | 1994-01-11 | 1995-08-11 | Ckd Corp | Method and device for controlling gas supply device |
| CN2212723Y (en) * | 1994-09-15 | 1995-11-15 | 吴正光 | Fast safety protector for multi-head gas set |
| CN202675386U (en) * | 2012-06-28 | 2013-01-16 | 宁波方太厨具有限公司 | Flame-out protection device for gas stove |
| CN202867955U (en) * | 2012-10-09 | 2013-04-10 | 河北科技大学 | Fuel gas automatic safety valve |
| CN204004709U (en) * | 2014-08-07 | 2014-12-10 | 北京市燃气集团有限责任公司 | Domestic gas pipeline Safety control valve based on flame monitoring |
-
2014
- 2014-08-07 CN CN201410384695.8A patent/CN104214402B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2184873Y (en) * | 1993-10-23 | 1994-12-07 | 王士菁 | Gas self-control safety device |
| JPH07208632A (en) * | 1994-01-11 | 1995-08-11 | Ckd Corp | Method and device for controlling gas supply device |
| CN2212723Y (en) * | 1994-09-15 | 1995-11-15 | 吴正光 | Fast safety protector for multi-head gas set |
| CN202675386U (en) * | 2012-06-28 | 2013-01-16 | 宁波方太厨具有限公司 | Flame-out protection device for gas stove |
| CN202867955U (en) * | 2012-10-09 | 2013-04-10 | 河北科技大学 | Fuel gas automatic safety valve |
| CN204004709U (en) * | 2014-08-07 | 2014-12-10 | 北京市燃气集团有限责任公司 | Domestic gas pipeline Safety control valve based on flame monitoring |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109444641A (en) * | 2018-12-18 | 2019-03-08 | 成都前锋电子仪器有限责任公司 | A kind of line detection device of flow meter controller |
| CN111750277A (en) * | 2019-03-26 | 2020-10-09 | 济南点燃智能科技有限公司 | User side gas metering safety system |
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| Publication number | Publication date |
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| CN104214402B (en) | 2017-02-15 |
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| CB02 | Change of applicant information |
Inventor after: Liu Jiangtao Inventor after: Li Qing Inventor after: Gao Chunmei Inventor after: Cao Wenxuan Inventor after: Wang Qingyu Inventor after: Wu Yuanyuan Inventor after: Wang Bin Inventor before: Li Qing Inventor before: Cao Wenxuan Inventor before: Gao Chunmei |
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