CN104214402B - Household gas pipeline safety control method based on flame monitoring - Google Patents
Household gas pipeline safety control method based on flame monitoring Download PDFInfo
- Publication number
- CN104214402B CN104214402B CN201410384695.8A CN201410384695A CN104214402B CN 104214402 B CN104214402 B CN 104214402B CN 201410384695 A CN201410384695 A CN 201410384695A CN 104214402 B CN104214402 B CN 104214402B
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- Prior art keywords
- circuit
- fire
- flare
- valve
- magnetic valve
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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
-
- 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
Abstract
The invention discloses a household gas pipeline safety control 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 method 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 method of controlling security based on flame monitoring, especially one kind is installed on
On domestic gas pipeline before gas meter, flow meter, by monitoring burner flame, automatically control the valve peace of indoor gas main pipe rail break-make
Full control method.
Background technology
In indoor gas system design, each fuel gas path only has the valve of two series connection at present, indoor before a gas meter, flow meter
Main gas valve, before a stove or water heater early gate, and during user uses, before stove or water heater early gate is constantly in
Open mode is so that indoor gas system is constantly in normally open before burner.Although there being some applicable indoor at present
Safe practice, but be all to make indoor gas system be constantly in normally open to detect whether combustion gas leaks substantially, or during leakage
Fuel gas path is cut off by safety product.
Content of the invention
The present invention provides a kind of domestic gas pipeline method of controlling security based on flame monitoring, to solve domestic gas pipe
Road Safety control valve, in the case of without gas, makes indoor gas system be in the technical problem of normally off.
In order to realize foregoing invention purpose, technical scheme is as follows：
Based on the domestic gas pipeline Safety control valve of flame monitoring, including flare up fire testing circuit, control board
And magnetic valve；Each flare up fire of described flare up fire testing circuit gathers wire and is arranged on each detected Gas appliance
On, each road output end of described flare up fire testing circuit is connected with the collection signal input part of described control board respectively,
The control signal output end of described control board is connected with magnetic valve by drive circuit；Described magnetic valve is arranged on gas meter, flow meter
On front pipeline.
Described flare up fire testing circuit mainly include three groups of thermocouples filter, amplify, comparing, delay circuit, this flame
Signal deteching circuit is connected with the logic control circuit of described control board, and logic control circuit output control terminates magnetic valve
And drive circuit.
Described logic control circuit input also with manually opened electromagnetic valve circuit and hand-operated forced closing electromagnetic valve circuit
Connect；Described manually opened electromagnetic valve circuit includes a button and the delay circuit being triggered by this button；Described hand-operated forced
Closing electromagnetic valve circuit is a button being directly accessed logic control circuit input.
Described magnetic 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, by the flare up fire being connected with control board
Collection wire gathers the blowout protection flare up fire of each burner, by control board internal program judge whether one or
Several flare up fire, if there is any one flare up fire, keep magnetic valve to be in unlatching shape by solenoid valve control wire
State, if judging there is not any one flare up fire, control board internal program starts timing, within a period of time of regulation
If occurring without any flare up fire, then valve closing is driven by solenoid valve control wire；If during this period of time, go out again
Any one or more flare up fire existing, then stop timing, keeps magnetic valve still in opening.
The effect of the present invention is：By designing a kind of valve being arranged on pipeline before gas meter, flow meter, indoors gas utensil makes
Used time keeps gas burning system to be in aeration status, once no burner is with monitoring no flare up fire, this burnt gas valve will be on rule
It is automatically switched off in fixed delay time section it is ensured that user's gas burning system when without gas is closed, realize automatically to family
The control of interior combustion gas system switching.Fundamentally reduce the leakage of indoor gas system, reduce potential safety hazard.
Brief description
Fig. 1 is composition and the scheme of installation of the present invention.
Fig. 2 is the 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 magnetic valve is connected with wireless receiving controller.
Fig. 5 is the schematic diagram of passive and wireless switch.
Specific embodiment
The composition structure of the present invention and install and use referring to Fig. 1,2.
The present invention is included flare up fire testing circuit, is controlled electricity based on the domestic gas pipeline Safety control valve of flame monitoring
Road plate and magnetic valve；Each flare up fire of described flare up fire testing circuit gathers wire and is arranged on each detected combustion gas
On utensil, each road output end of described flare up fire testing circuit is connected with the collection signal input part of described control board respectively
Connect, the control signal output end of described control board is connected with magnetic valve by drive circuit；Described magnetic valve is arranged on combustion
On pipeline before gas meter.
The present invention is gathered wire by the flare up fire being connected with control board and gathers putting out of the burners such as kitchen range, water heater
Fire protection flare up fire, judges whether one or several flare up fire by control board internal program, if existing any
One flare up fire, then keep magnetic valve to be in opening by solenoid valve control wire, if judging there is not any one
Flare up fire, then control board internal program start timing, if regulation a period of time in occur without any flare up fire,
Then valve closing is driven by solenoid valve control wire；If during this period of time, any one or more flames letter occurs again
Number, then stop timing, keep magnetic valve still in opening.This realized automatically to family by monitoring flare up fire mode
The control of interior combustion gas system switching, solves current domestic gas system and is in normally open, various safe practice passive detection
The drawbacks of leakage exists.
The course of work of the present invention：
The flare up fire wires such as kitchen range 8, water heater 71,2,3 are connected with control board 6, and control board 6 passes through electromagnetism
Valve pilot 4 is connected with magnetic valve 5.Before magnetic valve 5 is arranged on domestic gas pipeline gas meter, flow meter 9, control board is installed
It is easy to the position operating in kitchen.Before starting to start burner, manually boot start button in control board, so that controller is sent
Valve opening order, opens magnetic valve 5 by solenoid valve control wire 4, is then turned on the kitchen range with blowout protection or/and hot water
Device, is gathered the flare up fire of kitchen range or/and water heater, and is monitored by flare up fire wire 1,2,3, and controller passes through fire
Flame signal deteching circuit judges whether one or several flare up fire, if there is any one flare up fire, controller
Send order, keep magnetic valve 5 to be in opening by solenoid valve control wire 4, if judging there is not any one flame
Signal, then controller start timing, if regulation a period of time in occur without any flare up fire, then pass through magnetic valve
Pilot 4 drive magnetic valve 5 is closed；If during this period of time, any one or more flare up fire, then controller occur again
Stop timing, keep magnetic valve 5 still in opening.
Embodiments of the invention are referring to Fig. 3, Fig. 3-1, Fig. 3-2, Fig. 3-3：This circuit mainly include the filtering of three groups of thermocouples,
Amplify, compare, delay circuit, and manually opened electromagnetic valve circuit and hand-operated forced closing electromagnetic valve circuit.
The millivolt level signal that thermocouple produces is input in the integrated instrumentation amplifier of AD620 after capacitance-resistance LPF, electricity
Press in amplified input voltage comparator circuit, comparator circuit output signal passes to the time delay being made up of 555 integrated chips
In circuit.The signal input being exported by delay circuit is in logic control circuit.
Manually opened electromagnetic valve circuit is also the delay circuit of a use 555 integrated chip composition, is triggered with a button
Magnetic valve once can be kept to open 20 second time, output is also coupled in logic control circuit.
Hand-operated forced pass electromagnetic valve circuit is directly accessed in logic control circuit, at any time, as long as closure switch are just
Can be with positive closing magnetic valve.
Operation principle：When at ordinary times without fire, magnetic valve is closed mode.When with fire, click hand first
Dynamic open electromagnetic valve switch, the time that now magnetic valve is opened about 20 seconds guarantees the source of the gas having abundance.Strike sparks during this period,
Flame heats thermocouple, and thermocouple produces a larger voltage signal.Voltage signal amplifies through voltage ratio relatively after filtering
Device, exports a high level, and delay circuit is failure to actuate output high level, and after logic control circuit, drive magnetic valve is always
It is in opening.When without fire, fire extinguishes, and electric thermo-couple temperature is gradually reduced.When temperature drop is to 60 DEG C, thermoelectricity
The even voltage producing declines, amplified compare after, export low level, now delay circuit starts, and delay time is by circuit
Resistance is adjustable.To after the time, delay circuit exports low level, then after logic control circuit, controls closed electromagnetic valve.Wherein
At any time, as long as closure positive closing switch can ensure closed electromagnetic valve.In this circuit, the switch of magnetic valve is by one
Power MOS pipe IRF510 drives.
Described magnetic valve and drive circuit can be connected with a wireless receiving controller 11, described wireless receiving controller 11
Receive the switch command of passive and wireless switch 10 transmission.Passive and wireless switch 10 does not need external any power supply, automatically by machinery
Electric energy can be produced and support itself work；Wireless receiving controller 11 is by 220V mains-supplied；Magnetic valve 5 passes through control line of electromagnetic valve
4 are connected on wireless receiving controller 11.
Referring to Fig. 4, Fig. 5：This two figures are schematic diagrames, because circuit is relatively easy.Controller is mainly made up of three parts：
Passive and wireless switch 10, wireless receiving controller 11 and magnetic valve 5, wherein wireless receiving controller 11 pass through 220V power line 12
Electrically connect with 220V city.
Often switch 10 by a passive and wireless and all can send a wireless control signal, wireless receiving controller 11 receives
After control signal, corresponding switch control rule is carried out to magnetic valve 5, magnetic valve 5 is opened or closed with this.
This design is advantageous in that passive and wireless switch itself does not need battery, therefore facilitates and installs and easy to maintain, can
Higher by property.
Claims (3)
1. a kind of domestic gas pipeline method of controlling security based on flame monitoring it is characterised in that this based on flame monitoring
Domestic gas pipeline Safety control valve, including flare up fire testing circuit, control board and magnetic valve；Described flame letter
Each flare up fire of number testing circuit gathers wire and is arranged on each detected Gas appliance, described flare up fire detection
Each road output end of circuit is connected with the collection signal input part of described control board respectively, the control of described control board
Signal output part is connected with magnetic valve by drive circuit；Described magnetic valve is arranged on pipeline before gas meter, flow meter；Described flame letter
Number testing circuit mainly include three groups of thermocouples filter, amplify, comparing, delay circuit, this flare up fire testing circuit with described
The logic control circuit of control board connects, and logic control circuit output control terminates magnetic valve and drive circuit；Its safety
Control method is：The blowout protection flame letter that wire gathers each burner is gathered by the flare up fire being connected with control board
Number, one or several flare up fire are judged whether by control board internal program, if there is any one flare up fire,
Then keeping magnetic valve to be in opening by solenoid valve control wire, if judging there is not any one flare up fire, controlling
Circuit board internal program processed starts timing, if occurring without any flare up fire within a period of time of regulation, then passes through electromagnetism
Valve pilot drives valve closing；If during this period of time, any one or more flare up fire occur again, then stop meter
When, keep magnetic valve still in opening.
2. the domestic gas pipeline method of controlling security based on flame monitoring according to claim 1 is it is characterised in that institute
State logic control circuit input to be also connected with manually opened electromagnetic valve circuit and hand-operated forced closing electromagnetic valve circuit；Described hand
Dynamic opens solenoid valve circuit includes a button and the delay circuit being triggered by this button；Described hand-operated forced closing magnetic valve electricity
Road is a button being directly accessed logic control circuit input.
3. the domestic gas pipeline method of controlling security based on flame monitoring according to claim 1 is it is characterised in that institute
State magnetic valve and drive circuit to be connected with a wireless receiving controller, described wireless receiving controller receives passive and wireless switch
The switch command sending.
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 |
Applications Claiming Priority (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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104214402A CN104214402A (en) | 2014-12-17 |
| CN104214402B true CN104214402B (en) | 2017-02-15 |
Family
ID=52096175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410384695.8A Active CN104214402B (en) | 2014-08-07 | 2014-08-07 | Household gas pipeline safety control method based on flame monitoring |
Country Status (1)
| Country | Link |
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| CN (1) | CN104214402B (en) |
Families Citing this family (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 |
Family Cites Families (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 |
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2014
- 2014-08-07 CN CN201410384695.8A patent/CN104214402B/en active Active
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| Publication number | Publication date |
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| CN104214402A (en) | 2014-12-17 |
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| PB01 | Publication | ||
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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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| GR01 | Patent grant |