CN207849443U

CN207849443U - A kind of light sensation detection anti-backfire pulse igniter

Info

Publication number: CN207849443U
Application number: CN201720706617.4U
Authority: CN
Inventors: 叶碧波
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-06-18
Filing date: 2017-06-18
Publication date: 2018-09-11
Anticipated expiration: 2027-06-18

Abstract

The utility model discloses a kind of light sensations to detect anti-backfire pulse igniter；Its main feature is that detecting the light radiation generated when the tempering inside gas utensil is burnt by photosensitive sensor, and carries out gas utensil tempering for light radiation intensity or light radiation variable quantity and differentiate；Stopped working by controlling electric-controlled gas valve closing fuel gas path when monitoring to have inside gas utensil tempering failure, causes dangerous pulse igniter to avoid gas utensil tempering from burning gas utensil.Thus it brings the advantage that, relative to common thermocouple or thermistor etc. point temperature detection anti-backfire method, large range of possible tempered area can be monitored, reaction speed is also faster；Simultaneously because without contact or close to fire defector, so installation is more flexible, it is also more reliable.

Description

A kind of light sensation detection anti-backfire pulse igniter

Technical field

The utility model is related to a kind of light sensations to detect anti-backfire pulse igniter, particular for optical sensor is used, supervise When measuring gas utensil generation tempering failure, a kind of anti-backfire pulse firing that fuel gas path burns bad gas utensil to prevent non-return is closed Device.

Background technology

Gas utensil, especially combustion gas ejection type gas utensil, due to the principle that combustion gas injection air pre-mixing is closed, when injection one's intention as revealed in what one says Door adjusts the reasons such as improper or combustion gas air pressure is unstable or burner blocks, gas-air ratio of gas mixture may be caused improper or Flow velocity is too low, and to cause to be tempered, i.e. combustion gas burns at injector injection damper or burns in injection channel；It is tempered non- It is often dangerous, it may cause inside gas utensil, panel is burnt out, or even cause Gas Pipe to burn out gas leakage and poisoning and fire occurs.

Current anti-backfire technology mainly carries out tempering monitoring with thermocouple, thermistor etc. point thermometric temperature sensor, The drawbacks of this brings is can only to monitor the tempering problem of respective location, and require to installation point position, to component high temperature resistant Property also has higher requirements；So installation is inconvenient, and it is larger using limitation, it can only solve the problems, such as part tempering, versatility is poor, Cost is higher.

Invention content

The main purpose of the utility model is that the light radiation that gas utensil certain space range is detected using photosensitive sensors is strong Degree differentiates in gas utensil whether have tempering to burn by the size and change rate of light radiation intensity, and this function is integrated into In the band blowout protection pulse igniter component of traditional common, a kind of light sensation detection anti-backfire pulse igniter component is formed.

Description of the drawings

Fig. 1 is the principle explanatory diagram that light sensation detects anti-backfire pulse igniter；Wherein, photosensitive sensor 1, power supply 2, fire Flame and temperature rise detection unit 3, combustion gas valve control unit, VCU 4, electric-controlled gas valve 5, burner 6, misfire detection unit 7, high-voltage pulse Igniting unit 8, flameout sensor 9, ignition electrode 10, light sensation detect anti-backfire pulse igniter 11.

The course of work of the utility model is,

Such as Fig. 1, the direction of the light radiation sensitive surface of photosensitive sensor 1 is easy to incude the direction of burner backfire, for example burns The directions such as the injector or injector air regulating port of device 6；

Such as Fig. 1, light radiation of the photosensitive sensor 1 to the light of part or all of wavelength（Or luminous intensity）Sensitivity, than Such as infrared sensor, Ultraviolet sensor, visible light sensor；

Such as Fig. 1, photosensitive sensor 1 can generate electrical parameter change in the light radiation variation for injecting photosensitive sensor 1, Such as the electrical parameters such as resistance, electric current, voltage, capacitance, inductance；Changed by these electrical parameters, light sensation detects anti-backfire pulse point The flame and temperature of firearm 11, which rise detection unit 3, can effectively identify the variation of light radiation；

Such as Fig. 1, the light radiation intensity signal detected is passed to light sensation and detects anti-backfire pulse firing by photosensitive sensor 1 The flame and temperature of device 11 rise the processing identification of detection unit 3；

Such as Fig. 1, when tempering failure occurs for burner 6, if tempering is happened at outside burner 6, photosensitive sensor 1 can detect To the light radiations of various spectrum will all explode suddenly；If tempering is happened inside burner 6, photosensitive sensor 1 can detect The infra-red radiation rate of climb to 6 inside tempering position of burner is very fast, and temperature rise speed is far above combustion gas outside burner 6 Temperature rise speed when portion's normal combustion；So by both characteristics, it is entirely capable of monitoring the generation of tempering failure；

Such as Fig. 1, when flame and temperature, which rise detection unit 3, have been recognized tempering and happen, temperature rises detection circuit 3 and transmits letter Number combustion gas valve control unit, VCU 4, combustion gas valve control unit, VCU 4 is given to control electric-controlled gas valve 5 by controlling electrical circuit, burner will be supplied 6 gas pipeline is closed, to close combustion gas stream；Reach to close fire and prevent lasting tempering burn gas utensil, prevents Cause dangerous.

Such as Fig. 1, whether putting out for normal combustion on gas utensil burner 6 detected by flameout sensor 9 for misfire detection unit 7 It goes out, if electric-controlled gas valve 5 will be closed by gas valve control unit 4 by extinguishing, to close fuel gas path, prevents gas leakage；

Such as Fig. 1, misfire detection unit 7, flame and temperature rise 3 co- controlling gas valve control unit 4 of detection unit；

Such as Fig. 1, high-voltage pulses unit 8 is that circuit occurs for high-voltage pulses, by ignition electrode 10 in burner 6 Upper generation electrion pulse, to realize ignition function；

Such as Fig. 1, flame and temperature are risen into detection unit 3, combustion gas valve control unit, VCU 4, misfire detection unit 7, high-voltage pulse point Fiery unit 8 is integrated into same enclosure, to as light sensation detection anti-backfire pulse igniter 11；Anti-backfire is detected in light sensation Inside pulse igniter 11,

As in order to which more reliable monitoring is tempered failure, multigroup photosensitive sensor 1 can be used as a preferred embodiment in Fig. 1 The multiple easy tempering positions of circuit monitoring；

Specific implementation mode

As Fig. 1 illustrates a kind of specific embodiment party of the utility model by taking general solenoid valve blowout protection gas-cooker as an example Case；

The gas-cooker of provided with electromagnetic valve blowout protection pulse igniter is gas-cooker common in the market, passes through misfire detection Whether circuit detection gas-cooker extinguishes extremely, and leads to the fuel gas path of burner for gas stove by solenoid valve control, to prevent Gas leakage；

Such as Fig. 1, power supply 2 is the battery of former gas-cooker；Combustion gas valve control unit, VCU 4, misfire detection unit 7 and high-voltage pulse Igniting unit 8 is the circuit of former blowout protection pulse igniter；Electric-controlled gas valve 5, burner 6, flameout sensor 9, ignition electrode 10, it is the universal component of the gas-cooker with blowout protection；

Such as Fig. 1, photosensitive sensor 1 selects infrared photodiode, photosurface towards burner 6 combustion gas injector into Air port is installed, and high temperature when being tempered in order to avoid photosensitive sensor 1 is burnt out, the combustion gas injector air inlet from burner 6 There are 5cm ~ 10cm or so distances；

Such as Fig. 1, flame and temperature rise detection unit 3 as a microcontroller, and the ADC digital analog converters of this microcontroller is used to measure light The input signal of dependent sensor 1；

Such as Fig. 1, photosensitive sensor 1 is electrically connected to the flame of light sensation detection anti-backfire pulse igniter 11 and temperature rises detection Unit 3, flame and temperature rise detection unit 3 and output a control signal to combustion gas valve control unit, VCU 4, and combustion gas valve control unit, VCU 4 drives simultaneously Control electric-controlled gas valve 5；

Such as Fig. 1, output control signal use or electricity of the temperature liter output of the detection unit 3 control signal with misfire detection unit 7 The output of road co- controlling combustion gas valve control unit, VCU 4；

As a preferred embodiment, flame and temperature rise detection unit 3 and misfire detection unit 7 can be used same monolithic electromechanical Road；

Alternatively, the position being tempered for open fire occurs in gas utensil, photosensitive sensor 1 can use purple Outer photodiode or visible light-sensitive diode.

Claims

1. a kind of light sensation detects anti-backfire pulse igniter, it includes misfire detection unit, flame and temperature to rise detection unit, combustion gas Valve control unit, high-voltage pulses unit；It is characterized in that：Misfire detection unit, flame and temperature rise detection unit by or circuit Co- controlling gas valve control unit, and by the break-make of gas valve control unit control electric-controlled gas valve；Misfire detection unit, flame and Temperature rises detection unit, gas valve control unit, high-voltage pulses unit and is installed in a shell.

2. a kind of light sensation according to claim 1 detects anti-backfire pulse igniter, it is characterized in that：Flame and temperature rise detection The light radiation that the tempering that unit detects gas utensil by photosensitive sensor generates when burning, is become by light radiation intensity or heat radiation Change amount carries out gas utensil and is tempered faults analysis.

3. a kind of light sensation according to claim 1 or 2 detects anti-backfire pulse igniter, it is characterized in that：Flame and Wen Sheng The light radiation that the tempering that detection unit detects gas utensil by photosensitive sensor generates when burning, the light radiation of detection is infrared The one or more of line, ultraviolet light, visible light.