CN2537901Y - Automatic ignitor for gas large range - Google Patents
Automatic ignitor for gas large range Download PDFInfo
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- CN2537901Y CN2537901Y CN 02216316 CN02216316U CN2537901Y CN 2537901 Y CN2537901 Y CN 2537901Y CN 02216316 CN02216316 CN 02216316 CN 02216316 U CN02216316 U CN 02216316U CN 2537901 Y CN2537901 Y CN 2537901Y
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Abstract
The utility model relates to a fuel gas oven automatic ignition device, which comprises a power device, an alarm, a regulating switch, an electromagnetic valve, a proportional valve, an air blower, and a box body. The utility model is characterized in that the utility model also comprises a control circuit part, a burner, a sensing needle and an ignition needle; the control circuit part is arranged on the front side in the box body; the burner is arranged at the center part of the box body, the sensing needle and the ignition needle are respectively arranged on the left and right sides of the burner at intervals; the power device and the alarm are arranged on one side of the control circuit part, the regulating switch is arranged on the other side of the control circuit part; the electromagnetic valve, the proportional valve and the air blower are respectively arranged on the back side of the box body; a single chip control circuit, a pulse ignition circuit, a blower detection circuit, a flame detection circuit, a proportional valve opening degree control circuit, a electromagnetic valve detection and drive circuit and an alarm pushing circuit in the control circuit part are connected with the relatively control circuits through a cable. The utility model can ignite automatically, the firepower and the air output can be adjusted isochronously, and the operation is secure and convenient.
Description
Technical field
The utility model relates to a kind of igniter, relates in particular to a kind of combustion gas large stove automatic ignition device.
This device has on the young stove of firepower, air quantity adjusted in concert, the security function of reporting to the police, the large stove that is specially adapted to hotel, hotel, cooking stove, pot, the rice steaming car and uses.
Background technology
At present, the large stove that use in hotel, hotel, cooking stove etc., burner all is located in the kitchen range tripe, apart from the plane of the kitchen range top 30cm is arranged approximately, therefore very inconvenience of igniting, traditional sparking mode is lighted with fire rod.Promptly prick cotton-wool on fire-retardant long rod, cotton-wool soaks into the back in alcohol or kerosene lights with kindling material, removes a burner with fire rod manual unlocking large stove air valve the time then, treats to restart blower fan after the burner combustion, then the fire of fire rod is extinguished.
Another kind of advanced slightly sparking mode is to use burning torch: promptly use cutter, with rubber tube combustion gas is communicated with cutter, open the valve of cutter, light cutter with kindling material, and then open the air valve of large stove, remove a burner with the cutter of lighting simultaneously, treat to restart blower fan after the burner combustion, close the valve of cutter then.
More than the defective of large stove of two kinds of sparking mode be:
1, inconvenient operation, igniting must be used fire rod, kindling material or burning torch, rubber tube etc., and is very loaded down with trivial details.
2, dangerous, the valve of large stove must carefully be regulated, and valve is too little, is difficult for the ignition combustion device; Valve is too big, owing to the big detonation easily of gas output, causes personal injury or fire during igniting.
When 3, large stove used as wanting moderate heat or little fire, unadjustable because of the air quantity of blower fan, the air quantity air intake of maximum during all the time with big fire can not fully burn combustion gas, wastes the energy.
4, burner accident extinguishing, the alarm free device, combustion gas will be leaked in a large number, causes contingencies such as poisoning, blast.
Summary of the invention
The purpose of this utility model is to provide a kind of improved combustion gas large stove automatic ignition device, it is dangerous that it can overcome present large stove igniting, firepower, air quantity can not adjusted in concert shortcoming, thereby have automatic igniting, but the safe and reliable function of firepower, air quantity adjusted in concert.
The purpose of this utility model is achieved in that
A kind of combustion gas large stove automatic ignition device comprises: casing, be arranged on supply unit, the alarm that is connected with supply unit, magnetic valve, proportioning valve and by-pass cock K2, blower fan in the casing, and be characterized in also comprising:
Control circuit parts, burner, sensing needle Z2, igniting pin Z1;
Described control circuit parts are located at front side in the casing; Described burner, be located at centre in the casing, described sensing needle Z2, igniting pin Z1 are located at the burner left and right sides respectively at interval; Described supply unit, alarm are located at control circuit parts one side, and described by-pass cock K2 is located at control circuit parts opposite side; Described magnetic valve, proportioning valve, blower fan are located at the rear side of casing respectively at interval; Above-mentioned parts are by cable and relevant control circuit connection;
Described control circuit parts comprise: singlechip CPU control circuit, pulse firing circuit, blower fan testing circuit, flame detection circuit, proportioning valve are opened the by-pass cock K2 of valve degree control circuit, magnetic valve detection and drive circuit, warning promotion circuit, firepower air quantity adjusted in concert.
In above-mentioned combustion gas large stove automatic ignition device, wherein, in described control circuit parts, the clock-pulse circuit that described singlechip CPU control circuit comprises singlechip CPU, is made up of resistance R 4, R22, R24, R25, C2; Port one 6, the 18 serial connection clock-pulse circuits of singlechip CPU;
Described pulse firing circuit is connected with the port of singlechip CPU;
Described blower fan testing circuit is connected with the port of CPU;
Described flame detection circuit is connected with the port of singlechip CPU
Described proportioning valve is opened the initiating signal of valve degree control circuit and the output of stop signal, connects the initiating signal port of singlechip CPU and the port (18) of stop signal respectively;
Described magnetic valve detection and drive circuit are connected with the port of singlechip CPU;
Described warning promotes circuit and is connected with the port of singlechip CPU;
The by-pass cock K2 of described firepower air quantity adjusted in concert drives valve degree control circuit with blower fan, proportioning valve respectively and is connected.
In above-mentioned combustion gas large stove automatic ignition device, wherein, described pulse firing circuit (12) comprises zero cross fired photoelectrical coupler U2, commutation diode D12, two-way trigger switch diode D13, storage capacitor C4, the resistance R 3 of controlling spark rate, current-limiting resistance R20, bleeder resistance R26, high voltage package B2, igniting pin Z1; The primary coil two ends of high voltage package B2 connect U2, D12, D13, R3, R4, R20, R26; Secondary coil one end of high voltage package B2 connects igniting pin Z1, its other end ground connection.
In above-mentioned combustion gas large stove automatic ignition device, wherein, described blower fan testing circuit 13 comprises photoelectrical coupler U3, commutation diode D7, D8, D9, current-limiting resistance R1, R10, shunt capacitance C1, fusible link RD, by-pass cock K2-B, blower fan 8; Power switch K1 one end serial connection RD, K2-B, the blower fan testing circuit that connects to form by U3, D7, D8, D9, R1, R10, C1.
In above-mentioned combustion gas large stove automatic ignition device, wherein, described flame detection circuit 14 comprises oscillating tube Q3, oscillation transformer B3, forms pi type filter, limiter diode D10, D11, biasing resistance R2, dropping resistor R23, R27, isolation resistance R28, R29, sensing needle Z2 by C3, R29, C6; Be connected by C3, R29, C6 between the end of Z2 serial connection R27 is connected B3 with primary coil one end of B3 the primary coil other end and the Q3 and form pi type filter; D10, D11 and C3 also connect; Secondary coil two ends serial connection R2, the Q3 of B3; R23 connects the anodal R28 of D10 and is serially connected between the emitter stage and ground of Q3; The R29 two ends are connected with D11, C6 respectively.
In above-mentioned combustion gas large stove automatic ignition device, wherein, described proportioning valve is driven valve degree control circuit 15, comprise: proportioning valve 7, three-terminal voltage regulator U5, switching tube Q4, electrochemical capacitor C14, protection diode D1, D14, voltage-stabiliser tube D15, be isolating diode D16～D21, current-limiting resistance R8, divider resistance R5, R11, R13, R14, R15, R19, R21, double-pole six position conversion switch K2-A; The port one of three-terminal voltage regulator U5 connects by D16 to D21, and the port one of 6 grades of pressure control circuit U5 that R11, R13, R14, R15, R19, R21, K2-A connect and compose also is connected in series R5, D1 and is connected with proportioning valve 7; Port 2 serial connection D15, R6, the Q4 of U5; The port 3 of U5 connects R8; Be connected in series D14, C14 between another road of the port 3 of U5 and the ground.
In above-mentioned combustion gas large stove automatic ignition device, wherein, described magnetic valve detects and drive circuit 16, comprise magnetic valve 6, triode Q1, protection diode D2, resistance R 12, R16, R17, R18 and electrochemical capacitor C13, wherein R17, R18 are the biasing resistances of Q1, and C13 is a coupling capacitance, and R16, R12 are the divider resistances that magnetic valve detects; Be connected in series R17, R18 between the base stage of Q1 and the emitter stage, connect C13, C13 other end ground connection at the link of R17, R18; The colelctor electrode one tunnel of Q1 meets magnetic valve 6, D2; R12 in parallel, R16 between another road and the emitter stage.
In above-mentioned combustion gas large stove automatic ignition device, wherein, described warning promotes circuit 17 and comprises alarm 4, triode Q2, and biasing resistance R9 forms; The colelctor electrode of Q2 connects alarm 4; The base stage of Q2 connects R9.
In above-mentioned combustion gas large stove automatic ignition device, wherein, described blower fan 8 is provided with many grades of wind speed, and proportioning valve 7 is provided with many grades and opens the valve degree, all connect with the by-pass cock K2 that commentaries on classics is dialled in coaxial interlock, but wind speed with open valve degree adjusted in concert.
In above-mentioned combustion gas large stove automatic ignition device, wherein, described magnetic valve, the following tandem connection of proportioning valve is in gas path pipe.
The utility model compared with prior art, has following advantage and good effect owing to realized above-mentioned technical scheme:
1, owing to be provided with 2 air valves on gas path pipe, preceding is magnetic valve, after be proportioning valve, two valves are connected in series; Blower fan is provided with many grades of wind speed, and proportioning valve is provided with many grades and opens the valve degree, and the by-pass cock of dialling commentaries on classics by coaxial interlock connects, and dials the by-pass cock that changes coaxial interlock, but wind speed with open valve degree adjusted in concert;
2, owing in this device, be provided with the pulse firing circuit, flame detection circuit, magnetic valve testing circuit, accident extinguishing cut off source of the gas and warning circuit automatically, have so just stopped the sudden hurt accident that causes because of gas leakage or misoperation.
3, the utility model modern design has been made significant improvement to existing large stove igniter, has automatic igniting, firepower, air quantity adjusted in concert function; Simple in structure, cost is not high, makes the igniting of large stove more simple, convenient, safe, reliable.
4, pulse firing circuit of the present utility model is cheap, circuits for triggering are simple and reliable, need not adjustment.
Description of drawings
Concrete structure of the present utility model is further provided by following examples and accompanying drawing thereof.
Fig. 1 is the vertical view of the utility model combustion gas large stove automatic ignition device.
Fig. 2 is the front view of the utility model combustion gas large stove automatic ignition device.
Fig. 3 is the parts connection layout of the utility model combustion gas large stove automatic ignition device.
Fig. 4 is the circuit block diagram of the utility model combustion gas large stove automatic ignition device.
Fig. 5 is the circuit theory diagrams of the utility model combustion gas large stove automatic ignition device.
The specific embodiment
See also Fig. 1, Fig. 2, combustion gas large stove automatic ignition device comprises control circuit parts 1, burner 2 supply units 3, alarm 4, by-pass cock K2, magnetic valve 6, proportioning valve 7, blower fan 8 casings 5, sensing needle Z2, igniting pin Z1;
Magnetic valve 6, proportioning valve 7, blower fan 8 are located at the rear side of casing 5 respectively at interval; Wherein, magnetic valve, proportioning valve successively tandem connection in gas path pipe.
See also Fig. 3, Fig. 4, and please cooperate referring to Fig. 5, control circuit parts 1 comprise that singlechip CPU control circuit 11, pulse firing circuit 12, blower fan testing circuit 13, flame detection circuit 14, proportioning valve are driven valve degree control circuit 15, magnetic valve detection and drive circuit 16, reporting to the police promotes circuit 17, the synchronous by-pass cock of firepower air quantity;
The clock-pulse circuit that singlechip CPU crystal oscillating circuit 11 comprises singlechip CPU, is made up of resistance R 4, R22, R24, R25, C2; Port one 6, the 18 serial connection clock-pulse circuits of singlechip CPU;
Pulse firing circuit 12 is connected with the port 3 of singlechip CPU;
Blower fan testing circuit 13 is connected with the port 5 of CPU;
Flame detection circuit 14 is connected with the port one 7 of singlechip CPU
Proportioning valve leaves the initiating signal of valve degree control circuit 15 and the output of stop signal, connects the initiating signal port 20 of singlechip CPU and the port one 8 of stop signal respectively;
Magnetic valve detects and drive circuit 16 is connected with the port 2 of singlechip CPU;
The promotion circuit 17 of reporting to the police is connected with the port one 9 of singlechip CPU;
The by-pass cock K2 of firepower, air quantity adjusted in concert drives valve degree control circuit 15 with blower fan 8, proportioning valve respectively and is connected.
See also Fig. 5, R7 is an isolation resistance in the one-chip CPU control circuit, and the enabled instruction of CPU is imported from R7.R4, R22 provide dividing potential drop, and the halt instruction of CPU is imported from R4.C5 plays anti-interference effect.R24, R25, C2 provide the clock pulses of CPU, port one 6, the 18 serial connection clock-pulse circuits of singlechip CPU.
Pulse firing circuit 12 comprises zero cross fired photoelectrical coupler U2, commutation diode D12, two-way trigger switch diode D13, storage capacitor C4, the resistance R 3 of controlling spark rate, current-limiting resistance R20, bleeder resistance R26, high voltage package B2, igniting pin Z1; The primary coil two ends of high voltage package B2 connect U2, D12, D13, R3, R4, R20, R26; Secondary coil one end of high voltage package B2 connects igniting pin Z1, its other end ground connection, and R20 one end connects the port 3 of CPU.When 3 pin of CPU are exported high level, be added on the U2 by R20, make the light emitting diode in the photoelectrical coupler U2 send infrared light, output is a photosensitive two-way switch that has zero-crossing detector, when being subjected to infrared light irradiation and output end voltage just conducting near zero time simultaneously.Like this, input, output be by infrared light coupling, realized isolating fully on electric.Behind the break-over of device, the 220V line voltage charges to C4 through D12, when the voltage of C4 reaches and surpass the breakdown value of D13, and the D13 conducting, C4 is through D13, the discharge of B2 primary coil, and the secondary coil of B2 has just reached the voltage more than the 10KV through an inversion.When the discharge voltage of C4 near zero the time, D13 ends again, C4 begins charging again.So, go round and begin again.When 3 pin of CPU were low level, U2 ended, and igniting pin Z1 goes up the no pulse high pressure.
Blower fan testing circuit 13 comprises photoelectrical coupler U3, commutation diode D7, D8, D9, current-limiting resistance R1, R10, shunt capacitance C1, fusible link RD, the by-pass cock K2-B of six conversions of double-pole, blower fan 8; Power switch K1 one end serial connection RD, K2-B, by the blower fan testing circuit that U3, D7, D8, D9, R1, R10, C1 connect to form, R10 one end connects the port one 1 of CPU.If line voltage when positive half cycle, through RD, K2-b, blower fan D, D7, D8 to electrical network, the blower fan running, form pressure drop on D7, D8, the light emitting diode in R1 makes U3 sends infrared light, the photosensitive tube conducting of output, make the 11 pin ground connection of CPU, the CPU non-output signal.During the line voltage negative half period, make the blower fan running through D9, CPU is non-output signal (CPU has defined when programming: only detect half cycle) also.If blower fan shuts down for some reason, the last no pressure drop of D7, D8, U3 ends, and the 11 pin saltus steps of CPU are high level, the computing of CPU process, 1 pin output low level, Q1 ends, and magnetic valve J1 disconnects, and source of the gas cuts off; The high level of 19 pin output simultaneously, alarm Y reports to the police.The detection of blower fan has defined when CPU programmes: after powering on, it is invalid that CPU detects before not importing enabled instruction, and CPU detects effectively after the input enabled instruction.
Flame detection circuit 14 comprises oscillating tube Q3, oscillation transformer B3, forms pi type filter, limiter diode D10, D11, biasing resistance R2, dropping resistor R23, R27, isolation resistance R28, R29, sensing needle Z2 by C3, R29, C6; The end serial connection R27 of Z2 is connected with primary coil one end of B3; Be connected by C3, R29, C6 between the primary coil other end of B3 and the Q3 and form pi type filter; D10, D11 and C3 and the secondary coil two ends that meet B3 are connected in series R2, Q3; R23 connects the D10 positive pole; R28 is serially connected between the emitter stage and ground of Q3; The R29 two ends are connected with D11, C6 respectively, and the end of R29 is connected with the port one 7 of CPU.
Valve degree control circuit 15 left by proportioning valve, comprise: proportioning valve 7, opening the valve degree changes with the variation that adds voltage thereon, three-terminal voltage regulator U5, switching tube Q4, electrochemical capacitor C14, protection diode D1, D14, voltage-stabiliser tube D15, be isolating diode D16～D21, current-limiting resistance R8, divider resistance R5, R11, R13, R14, R15, R19, R21, the by-pass cock K2-A of six conversions of double-pole; The port one of three-terminal voltage regulator U5 connects by D16 to D21, the port one of 6 grades of pressure control circuit U5 that R11, R13, R14, R15, R19, R21, K2-A connect and compose also is connected in series R5, D1 are connected U5 with proportioning valve 7 port 2 serial connection D15, R6, Q4; The port 3 of U5 connects R8; Be connected in series D14, C14 between another road of the port 3 of U5 and the ground; Proportioning valve 7 output stop signal end serial connection R4 are connected R7 with the port one 8 of CPU a end is connected with the enabling signal input port 20 of CPU.
The adjustment port one of U5 provides 6 grades of dividing potential drops, makes 6 grades of voltages of output port 2 outputs of U5.The adjusting of these 6 grades of voltages is controlled by K2-A, from 0 gear → 5 gears, proportioning valve 7 open the valve degree by closing → maximum step increments.Simultaneously the gear of K2-b also changes synchronously, from 0 gear → 5 gears, has changed 5 taps of blower fan winding, make blower fan 8 from stop → at a high speed, step increments.When K2-A put 0 gear, the dividing potential drop that R5 and R11 provide made the breakdown voltage of output voltage＜D15 of U5, and Q4 ends, and proportioning valve 7 cuts out.K2-b also puts 0 gear simultaneously, and blower fan 8 open circuits do not turn round.When K2-A put 1 gear, the dividing potential drop that R5 and R13 provide made the output voltage of U5 puncture D15, Q4 conducting, and proportioning valve 7 leaves valve with the valve degree of opening of 1 gear; And K2-b also puts 1 gear, the blower fan low-speed running, and 20 pin of CPU have promptly been imported enabled instruction through R7 ground connection simultaneously, and CPU is through computing, and 3 pin are exported high level, igniting pin Z1 pulse firing, behind the 2S, 1 pin output high level, Q1 conducting, magnetic valve 6 adhesives.At this moment gas circuit is unimpeded, fuel gas buring.After sensing needle Z2 detects flame, flame detection circuit output low level to 17 pin, the computing of CPU process, 3 pin output low levels, igniting stops.Cooking stove enters normal operating condition.But the user is regulated at will firepower and air quantity as required.If stop working, K2 is put 0 gear, and as previously mentioned, Q4 ends, proportioning valve 7 cuts out, the collector voltage of Q4 is input high level after R4, R22 dividing potential drop---and halt instruction is to the CPU18 pin, and CPU is through computing, 1 pin output low level, Q1 ends, magnetic valve J1 closes, fray-out of flame, and blower fan 8 also shuts down simultaneously.
Magnetic valve detects and drive circuit 16, comprises magnetic valve 6, triode Q1, protection diode D2, resistance R 12, R16, R17, R18 and electrochemical capacitor C13, wherein R17, R18 are the biasing resistances of Q1, C13 is a coupling capacitance, and R16, R12 are the divider resistances that magnetic valve detects; Be connected in series R17, R18 between the base stage of Q1 and the emitter stage, connect C13, C13 other end ground connection at the link of R17, R18; The colelctor electrode one tunnel of Q1 meets magnetic valve 6, D2; R12 in parallel, R16 between another road and the emitter stage; R16 one end is connected with the port 2 of CPU.The detection of magnetic valve 6, CPU detects before not importing enabled instruction effectively, and it is invalid that CPU detects after the input enabled instruction.
The promotion circuit 17 of reporting to the police comprises alarm 4, triode Q2, and biasing resistance R9 forms; The colelctor electrode of Q2 connects alarm 4; The end that the base stage of Q2 connects R9 R9 is connected with the port one 9 of CPU.
In the circuit of Fig. 5, be provided with and also comprise DC power supply circuit in the complete machine supply unit, it comprises: double-pole power switch K1, fuse RD, power transformer B1, three terminal integrated voltage stabilizer U4, commutation diode D3, D4, D5, D6, electrochemical capacitor C11, C12, C15 strobe, shunt capacitance C7, C8, C9, C10.In this circuit the 220V electric main is met K1, be connected in series RD between primary coil one end of the end of K1 and B1, the other end of K1 is connected with the primary coil other end, and the secondary coil two ends of B1 connect D3, D5 and D4, D6 respectively; The negative, positive two ends of D4, D6 connect by U4, C7, C8, C9, C10, C11, C12, C15 and connect the mu balanced circuit of forming; The 220V electric main is through transformer B1 transformation, rectifying tube rectification, mu balanced circuit, and output dc voltage is connected with the dc source of complete machine.
Above-mentioned device, CPU model are the P87LPC762BN single-chip microcomputer, and the U2 model is the M0C3061 photoelectrical coupler, and the U3 model is the NEC2501 photoelectrical coupler, and the U4 model is the AN7805 three terminal integrated voltage stabilizer, and the U5 model is LM317 three end adjustable voltage-regulating ic devices.
When using, connect the 220V power supply, when 51 grade of by-pass cock, the positive potential of the certain amplitude of valve degree control circuit 15 outputs left by proportioning valve, and making the valve degree of opening of proportioning valve is fired state, and the 220V power supply also is added on the blower fan 8 blower fan 8 low-speed runnings simultaneously.By-pass cock 5 sends simultaneously again that enabled instruction---low level is to CPU, CPU starts, time inversion of output high level to, zero cross fired pulse firing circuit 12, make it produce high voltage pulse, igniting pin Z1 is to burner 2 igniting, and after 2 seconds, CPU exports high level to magnetic valve again and detects drive circuit 16, magnetic valve 6 is opened, burner 2 burnings.Sensing needle Z2 detects flame simultaneously, produces electromotive force, and this electromotive force is added to flame detection circuit 14, and through detecting, output low level is to CPU, and CPU is through computing, and output low level makes it stop igniting to pulse firing circuit 12.Cooking stove is in normal operating condition.
After cooking stove is lighted, as will regulating firepower, air quantity, only need by-pass cock 5 is placed 2,3,4,5 gears, just firepower, air quantity increase step by step, up to maximum, otherwise then firepower, air quantity just reduce step by step.
When cooking stove started, as by-pass cock 5 being placed other gears except that 1 gear, CPU did not do to start (enabled instruction of CPU only is located at 1 gear), and cooking stove can not be worked, and this also is a very important safety measure.If by-pass cock 5 places the also bootable words of other gears, to open the valve degree big because of other gear proportioning valves, and air quantity is also big, burner is difficult for lighting, even lighted, just easily forms detonation, detonation is extremely dangerous, never permits in the performance assessment criteria of gas industry.
Cooking stove is in burning, flame-out as accident, sensing needle Z2 detects less than flame, and potential-free produces, and flame detection circuit 14 is through detecting, the output high level is to CPU, CPU is through computing, and output low level to magnetic valve 6 detects, and drives magnetic valve testing circuit circuit 16, make it close magnetic valve 6, cut off source of the gas.CPU exports high level again and promotes circuit 17 to reporting to the police simultaneously, and alarm 4 is reported to the police, and informs the user, and cooking stove is flame-out.
If when igniting pin Z1 lights a fire to burner 2, burner 2 can not burn, and then igniting continuously in the time that can set (this device is 6 seconds) is after 6 seconds, CPU output low level to pulse firing circuit 12 and magnetic valve detects drive circuit 16, makes it stop to light a fire and closing magnetic valve 6.Cut off source of the gas, CPU exports high level again and promotes circuit 17 to reporting to the police simultaneously, and alarm 4 is reported to the police.
Cooking stove is normally in service, if breaking down, blower fan 8 shuts down, blower fan testing circuit 13 output high level are to CPU, through computing, CPU output low level to magnetic valve detects drive circuit 16, close magnetic valve 6 and cut off source of the gas, CPU exports high level again and promotes circuit 17 to reporting to the police simultaneously, and alarm 4 is reported to the police.
After connecting the 220V power supply, if this device does not start as yet, open fault takes place in magnetic valve 6, magnetic valve detects drive circuit 16 output low levels to CPU, CPU does not react the enabled instruction of input through self-locking after the computing, and cooking stove can not be worked, CPU exports high level again and promotes circuit 17 to reporting to the police simultaneously, and alarm 4 is reported to the police.Have only the fault of having got rid of magnetic valve 6, magnetic valve detects drive circuit 16 output high level to CPU, and through computing, cpu reset, output low level promotes circuit 17 to reporting to the police again simultaneously, removes and reports to the police.
Cooking stove is normally in service, unwrap the road fault if line takes place magnetic valve 6, magnetic valve 6 cuts out, source of the gas cuts off, sensing needle Z2 detects less than flame, and flame detection circuit 14 output high level are to CPU, and CPU output low level to magnetic valve detects drive circuit 16, make it close magnetic valve 6 (magnetic valve hinders for some reason, closes for a long time).CPU exports high level again and promotes circuit 17 to reporting to the police simultaneously, and alarm 4 is reported to the police.
Cooking stove, only needs by-pass cock 5 is placed 0 gear as stopping working normally in service, and proportioning valve leaves valve degree control circuit 15 and just cuts out; Blower fan 8 shuts down.Proportioning valve leaves valve degree control circuit 15 output halt instruction-high level to CPU simultaneously, and the CPU output low level detects drive circuit 16 to magnetic valve, and magnetic valve 6 cuts out, and cuts off source of the gas.
The utility model so change slightly, promptly can be changed into touch control owing to adopt CPU control in the manipulation of controller.Can establish a key is startup/stop key, and establishing a key is that firepower, air quantity raise key, and establishing a key again is firepower, air quantity down key, and with 5 grades of firepower of 5 luminous tube indications, air quantity, when firepower, when air quantity is maximum, 5 luminous tubes are bright entirely.Indicate flame, blower fan, solenoid valve failure respectively with the luminous tube of 3 different colors again, not only eye-catching but also attractive in appearance like this.
In sum, the utility model modern design, reasonable has automatic igniting, firepower, air quantity adjusted in concert function; Make the igniting of large stove more simple, convenient, safe, reliable.
Claims (10)
1, a kind of combustion gas large stove automatic ignition device, comprise: casing (5), be arranged on supply unit (3), the alarm (4) that is connected with supply unit (3), magnetic valve (6), proportioning valve (7) and by-pass cock K2, blower fan (8) in the casing (5), it is characterized in that also comprising:
Control circuit parts (1), burner (2), sensing needle Z2, igniting pin Z1;
Described control circuit parts (1) are located at the interior front side of casing (5); Described burner (2), be located at the interior centre of casing (5), described sensing needle Z2, igniting pin Z1 are located at burner (2) left and right sides respectively at interval; Described supply unit (3), alarm (4) are located at control circuit parts one side, and described by-pass cock K2 is located at control circuit parts (1) opposite side; Described magnetic valve (6), proportioning valve (7), blower fan (8) are located at the rear side of casing (5) respectively at interval; Above-mentioned parts are by cable and relevant control circuit connection;
Described control circuit parts (1) comprising: singlechip CPU control circuit (11), pulse firing circuit (12), blower fan testing circuit (13), flame detection circuit (14), proportioning valve are driven valve degree control circuit (15), magnetic valve detection and drive circuit (16), reporting to the police promotes the by-pass cock K2 of circuit (17), firepower air quantity adjusted in concert.
2, combustion gas large stove automatic ignition device according to claim 1, it is characterized in that: in described control circuit parts (1), the clock-pulse circuit that described singlechip CPU control circuit (11) comprises singlechip CPU, is made up of resistance R 4, R22, R24, R25, C2; Port one 6, the 18 serial connection clock-pulse circuits of singlechip CPU;
Described pulse firing circuit (12) is connected with the port (3) of singlechip CPU;
Described blower fan testing circuit (13) is connected with the port (11) of CPU;
Described flame detection circuit (14) is connected with the port (17) of singlechip CPU
Described proportioning valve is opened the initiating signal of valve degree control circuit (15) and the output of stop signal, connects the initiating signal port (20) of singlechip CPU and the port (18) of stop signal respectively;
Described magnetic valve detects and drive circuit (16) is connected with the port (2) of singlechip CPU;
Described warning promotes circuit (17) and is connected with the port (19) of singlechip CPU;
The by-pass cock K2 of described firepower air quantity adjusted in concert drives valve degree control circuit (15) with blower fan (8), proportioning valve respectively and is connected.
3, combustion gas large stove automatic ignition device according to claim 1, it is characterized in that: described pulse firing circuit (12) comprises zero cross fired photoelectrical coupler U2, commutation diode D12, two-way trigger switch diode D13, storage capacitor C4, the resistance R 3 of controlling spark rate, current-limiting resistance R20, bleeder resistance R26, high voltage package B2, igniting pin Z1; The primary coil two ends of high voltage package B2 connect U2, D12, D13, R3, R4, R20, R26; Secondary coil one end of high voltage package B2 connects igniting pin Z1, its other end ground connection.
4, combustion gas large stove automatic ignition device according to claim 1, it is characterized in that: described blower fan testing circuit (13) comprises photoelectrical coupler U3, commutation diode D7, D8, D9, current-limiting resistance R1, R10, shunt capacitance C1, fusible link RD, by-pass cock K2-B, blower fan (8); Power switch K1 one end serial connection is by RD, K2-B, by the blower fan testing circuit that U3, D7, D8, D9, R1, R10, C1 connect to form, and a plurality of contacts of K2-B connect blower fan (8).
5, combustion gas large stove automatic ignition device according to claim 1, it is characterized in that: described flame detection circuit (14) comprises oscillating tube Q3, oscillation transformer B3, forms pi type filter, limiter diode D10, D11, biasing resistance R2, dropping resistor R23, R27, isolation resistance R28, R29, sensing needle Z2 by C3, R29, C6; The end serial connection R27 of Z2 is connected with primary coil one end of B3; Be connected by C3, R29, C6 between the primary coil other end of B3 and the Q3 and form pi type filter; D10, D11 and C3 also connect; Secondary coil two ends serial connection R2, the Q3 of B3; R23 connects the D10 positive pole; R28 is serially connected between the emitter stage and ground of Q3; The R29 two ends are connected with D11, C6 respectively.
6, combustion gas large stove automatic ignition device according to claim 1, it is characterized in that: described proportioning valve is driven valve degree control circuit (15), comprise: proportioning valve (7), three-terminal voltage regulator U5, switching tube Q4, electrochemical capacitor C14, protection diode D1, D14, voltage-stabiliser tube D15, be isolating diode D16～D21, current-limiting resistance R8, divider resistance R5, R11, R13, R14, R15, R19, R21, by-pass cock K2-A; The port one of three-terminal voltage regulator U5 connects by D16 to D21,6 grades of pressure control circuits that R11, R13, R14, R15, R19, R21, K2-A connect and compose; The port one of U5 also is connected in series R5, D1 and is connected with proportioning valve (7); Port 2 serial connection D15, R6, the Q4 of U5; The port 3 of U5 connects R8; Be connected in series D14, C14 between another road of the port 3 of U5 and the ground.
7, combustion gas large stove automatic ignition device according to claim 1, it is characterized in that: described magnetic valve detects and drive circuit (16), comprise magnetic valve (6), triode Q1, protection diode D2, resistance R 12, R16, R17, R18 and electrochemical capacitor C13, wherein R17, R18 are the biasing resistances of Q1, C13 is a coupling capacitance, and R16, R12 are the divider resistances that magnetic valve detects; Be connected in series R17, R18 between the base stage of Q1 and the emitter stage, connect C13, C13 other end ground connection at the link of R17, R18; The colelctor electrode one tunnel of Q1 meets magnetic valve (6), D2; R12 in parallel, R16 between another road and the emitter stage.
8, combustion gas large stove automatic ignition device according to claim 1 is characterized in that: described warning promotes circuit (17) and comprises alarm (4), triode Q2, and biasing resistance R9 forms; The colelctor electrode of Q2 connects alarm (4); The base stage of Q2 connects R9.
9, combustion gas large stove automatic ignition device according to claim 1, it is characterized in that: described blower fan (8) is provided with many grades of wind speed, proportioning valve (7) is provided with many grades and opens the valve degree, all connect with the by-pass cock K2 that commentaries on classics is dialled in coaxial interlock, but wind speed with open valve degree adjusted in concert.
10, combustion gas large stove automatic ignition device according to claim 1 is characterized in that: described magnetic valve (6), proportioning valve (7) tandem connection is in gas path pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02216316 CN2537901Y (en) | 2002-03-22 | 2002-03-22 | Automatic ignitor for gas large range |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02216316 CN2537901Y (en) | 2002-03-22 | 2002-03-22 | Automatic ignitor for gas large range |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2537901Y true CN2537901Y (en) | 2003-02-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02216316 Expired - Fee Related CN2537901Y (en) | 2002-03-22 | 2002-03-22 | Automatic ignitor for gas large range |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2537901Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840582A (en) * | 2012-09-11 | 2012-12-26 | 姬志刚 | Fuel gas combustion control equipment used for wok |
| CN101650076B (en) * | 2008-08-13 | 2013-05-08 | 海尔集团公司 | Ignition method and device for gas water heater |
| CN104035356A (en) * | 2014-06-24 | 2014-09-10 | 佛山三昌五金炉具有限公司 | Ignition control circuit for gas appliance |
| CN108506973A (en) * | 2018-04-12 | 2018-09-07 | 无锡市启山林科技有限公司 | Commercial kitchen tools gas ignition safety control system and its control method |
| CN109140534A (en) * | 2018-10-10 | 2019-01-04 | 杭州老板电器股份有限公司 | A kind of gas-cooker activation system |
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2002
- 2002-03-22 CN CN 02216316 patent/CN2537901Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101650076B (en) * | 2008-08-13 | 2013-05-08 | 海尔集团公司 | Ignition method and device for gas water heater |
| CN102840582A (en) * | 2012-09-11 | 2012-12-26 | 姬志刚 | Fuel gas combustion control equipment used for wok |
| CN104035356A (en) * | 2014-06-24 | 2014-09-10 | 佛山三昌五金炉具有限公司 | Ignition control circuit for gas appliance |
| CN108506973A (en) * | 2018-04-12 | 2018-09-07 | 无锡市启山林科技有限公司 | Commercial kitchen tools gas ignition safety control system and its control method |
| CN108506973B (en) * | 2018-04-12 | 2024-02-27 | 广州市东霸节能科技有限公司 | Commercial kitchen gas ignition safety control system and control method thereof |
| CN109140534A (en) * | 2018-10-10 | 2019-01-04 | 杭州老板电器股份有限公司 | A kind of gas-cooker activation system |
| CN109140534B (en) * | 2018-10-10 | 2024-02-20 | 杭州老板电器股份有限公司 | Gas stove starting system |
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