CN112393276A - Pulse ignition control method for gas appliance - Google Patents
Pulse ignition control method for gas appliance Download PDFInfo
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- CN112393276A CN112393276A CN201910746350.5A CN201910746350A CN112393276A CN 112393276 A CN112393276 A CN 112393276A CN 201910746350 A CN201910746350 A CN 201910746350A CN 112393276 A CN112393276 A CN 112393276A
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- gas
- pulse
- control method
- gas appliance
- controller
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/12—Arrangement or mounting of control or safety devices
- F24C3/126—Arrangement or mounting of control or safety devices on ranges
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/10—Arrangement or mounting of ignition devices
- F24C3/103—Arrangement or mounting of ignition devices of electric ignition devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Regulation And Control Of Combustion (AREA)
Abstract
The invention provides a pulse ignition control method for a gas appliance. The pulse ignition control method specifically comprises the following steps: A. the controller sends an ignition instruction to the pulse igniter; B. the pulse igniter outputs high voltage pulse, and the high voltage pulse is applied to the ignition electrode; C. the high voltage on the ignition electrode breaks down the air and discharges electric sparks to the combustor; D. the electric spark identification device identifies electric sparks and sends an identification result to the controller; E. the controller receives the effective electric spark signal and controls to open the gas valve. The ignition control method can be popularized on gas appliances, and the safety use performance of the gas appliances is improved. Namely, in the case of the ignition performance failure of the gas appliance, the ineffective gas discharge can be avoided.
Description
Technical Field
The invention relates to a pulse ignition control method for a gas appliance.
Background
At present, the pulse ignition and the gas valve opening of domestic gas appliances mostly adopt an open-loop control mode, namely, a controller firstly sends an ignition instruction to a pulse igniter or a pulse ignition circuit unit, and after waiting for 0.5 second or more, the electromagnetic valve for controlling the gas valve is electrified and the gas valve is opened.
Chinese patent 98248581.6 discloses a double-pulse electronic ignition device, which is internally provided with two identical pulse igniters, wherein an ignition circuit of each pulse igniter consists of a comparator IC1, a triode BG1, a BG2, a transformer B1, a silicon controlled rectifier V1 and a transformer B2, a flame detection feedback circuit consists of triodes BG3 and BG5, an electromagnetic valve holding circuit consists of triodes BG6 and BG7, and an electromagnetic valve pull-in circuit consists of a comparator IC3, a triode BG8 and a BG 9. The gas appliance has the advantages that when the gas appliance is started, the two igniters discharge and ignite simultaneously, if one of the igniters fails to ignite accidentally, the other igniter can still ignite the gas, and the gas leakage accident is avoided. By arranging two pulse igniters, although the probability of ignition success can be improved, the situation that both pulse igniters fail still exists, and the problem is not solved fundamentally.
Chinese patent 94238876.3 discloses a safety protection device for gas appliances. The flame-out safety protection device consists of a power supply, a pulse igniter, a burner, a flame detector, an electronic timer, a timer, an alarm buzzer and a flame-out safety protection valve. When the gas appliance works, if the gas appliance is flamed out accidentally, the device can automatically ignite again to ensure that the gas is combusted again; if the gas can not be ignited after the ignition, the gas supply valve can be closed quickly, the gas source is cut off, and the alarm buzzer gives an alarm to prevent the gas from leaking to cause the accidents of poisoning, fire or explosion and the like. The scheme focuses on gas leakage in the combustion process, and does not solve the problem of gas leakage during ignition.
Chinese patent 91201497.0 discloses an automatic protection device for flame ionization type gas appliances used in household gas appliances such as gas water heater, gas range, gas oven, etc., which mainly uses an ion current detection circuit for detecting the ion current generated by gas combustion, so that the safety control automatic ignition device is in a stable monitoring state. When the gas appliance suddenly goes out of fire accidentally, the main gas pipeline of the gas appliance can be cut off rapidly, so that a large amount of unburned gas is prevented from leaking out to endanger personal safety, and meanwhile, the gas appliance can be automatically ignited rapidly, so that the gas appliance can be used normally. The scheme also focuses on gas leakage in the combustion process, and does not solve the problem of gas leakage during ignition.
Therefore, how to provide a safe pulse ignition control technology for gas appliances is a problem to be solved in the industry.
Disclosure of Invention
The invention aims to provide a pulse ignition control method for a gas appliance, which can improve the ignition safety performance of the gas appliance and avoid unnecessary gas discharge in the use process of the gas appliance.
In order to achieve the purpose, the invention provides a pulse ignition control method of a gas appliance. The ignition control method can be popularized on gas appliances, and the safety use performance of the gas appliances is improved. Namely, in the case of the ignition performance failure of the gas appliance, the ineffective gas discharge can be avoided.
In the present specification, "gas" refers to a gas fuel which can be burned to release heat for use by urban residents and industrial enterprises. Such as natural gas, artificial gas, liquefied petroleum gas and biogas, coal gas, biomass gas, and the like. The "gas appliance" refers to an appliance for heating food or water using gas, such as a gas water heater, a gas heating water heater, a gas cooker, and the like.
In the present invention, the gas valve may be, for example, a solenoid valve, which is controlled by a solenoid valve driver or a solenoid valve driving circuit. The controller controls the opening and closing of the gas valve through the electromagnetic valve driver or the electromagnetic valve driving circuit so as to control the on-off of the gas.
In the invention, the controller is used for receiving signals and sending instructions. Specifically, one of the functions of the controller is to receive an ignition signal (such as a button pressing or knob turning, a water flow signal and the like) of an operator and send an ignition instruction to the pulse igniter; the second function of the controller is to receive the electric spark existence signal and send an instruction for opening the electromagnetic valve to the electromagnetic valve driver or the electromagnetic valve driving circuit. The controller can be, for example, a single chip microcomputer or a control circuit according to different application scenarios and different requirements.
According to another embodiment of the present invention, the pulse ignition control method specifically includes the steps of:
A. the controller sends an ignition instruction to the pulse igniter;
B. the pulse igniter outputs high voltage pulse, and the high voltage pulse is applied to the ignition electrode;
C. the high voltage on the ignition electrode breaks down the air and discharges electric sparks to the combustor;
D. the electric spark identification device identifies electric sparks and sends an identification result to the controller;
E. the controller receives the effective electric spark signal and controls to open the gas valve.
According to another embodiment of the present invention, the electric spark identification device in the step D includes: signal collector, benchmark production circuit, comparator.
According to another embodiment of the present invention, step D further comprises the steps of: .
D1, collecting the electric spark energy by a signal collector and converting the electric spark energy into an electric signal;
d2, comparing the electric signal collected by the signal collector with the reference signal of the reference generating circuit through a comparator;
d3, and sending the signal output by the comparator to the controller for processing.
According to another embodiment of the present invention, step E further comprises the steps of:
e1, the controller receives the electric spark effective signal sent by the comparator;
e2, the controller sends a signal for opening the gas valve to the electromagnetic valve driver,
e3, the electromagnetic valve driver connects the power supply to the gas valve, and the gas appliance enters the normal combustion working state.
According to another specific embodiment of the present invention, the controller is a single chip microcomputer, and the control logic thereof is completed by a program residing in the single chip microcomputer; the gas appliance comprises a gas water heater, a gas heating water heater and a multifunctional gas cooker.
According to another embodiment of the invention, the controller is a control circuit, and the gas appliance comprises a gas cooker and a gas water heater with simple functions.
According to another embodiment of the present invention, the control circuit is a sequential logic circuit.
According to another embodiment of the present invention, in step D, the spark energy is converted into a voltage signal.
According to another embodiment of the invention, the method for controlling the pulse ignition of the gas appliance adopts closed-loop control.
Compared with the prior art, the invention has the following beneficial effects:
in the pulse ignition control method for the gas appliance, the controller energizes the electromagnetic valve for controlling the gas valve and opens the gas valve only after detecting the electric spark, so that the ignition safety performance of the gas appliance is improved, and unnecessary gas discharge of the gas appliance in the use process is avoided.
Drawings
FIG. 1 is a schematic configuration diagram for implementing a pulse ignition control method for a gas appliance of embodiment 1;
FIG. 2 is a schematic configuration diagram for implementing the pulse ignition control method of the gas appliance of embodiment 2;
fig. 3 is a schematic configuration diagram for implementing the pulse ignition control method for a gas appliance of embodiment 3.
Detailed Description
Example 1
As shown in fig. 1, the device for implementing the pulse ignition control method of the gas appliance of the present embodiment includes a controller U1, a solenoid valve driver U2, an electric spark recognition device, a pulse igniter U6, an ignition electrode ND, a burner PE, and a solenoid valve V1. The electric spark identification device comprises a comparator U3, a reference generation circuit U4 and a signal collector U5. Others such as the positive power supply VDD, the negative power supply GND, and the switch S1 are identified for better illustration of the operating principle.
The pulse ignition control method for the gas appliance adopts closed-loop control, and the gas valve is controlled to be opened only after the controller detects the electric spark of pulse ignition.
The pulse ignition control method for the gas appliance in the embodiment specifically comprises the following steps:
A. the controller U1 sends an ignition instruction to the pulse igniter U6;
B. the pulse igniter U6 outputs a high voltage pulse that is applied to the ignition electrode ND;
C. the high voltage on the ignition electrode ND breaks down the air and discharges electric sparks to the combustor PE;
D. the electric spark identification device identifies an electric spark and sends an identification result to the controller U1; step D further comprises the steps of:
d1, a signal collector U5 collects the energy of the electric spark and converts the energy into an electric signal (such as a voltage signal);
d2, comparing the voltage signal collected by the signal collector U5 with the reference signal of the reference generating circuit U4 through a comparator U3;
signals output by the D3 and the comparator U3 are sent to the controller U1 for processing;
E. the controller U1 receives the electric spark effective signal and controls to open the gas valve; step E further comprises the steps of:
e1, the controller U1 receives the electric spark effective signal sent by the comparator U3;
e2, the controller U1 sends a signal to the solenoid valve driver U2 to open the gas valve V1 (such as a solenoid valve),
e3, the electromagnetic valve driver U2 connects the power supply to the gas valve V1 (such as the electromagnetic valve), and the gas appliance enters the normal combustion working state.
Example 2
As shown in fig. 2, the present embodiment is different from embodiment 1 in that: the controller is a singlechip, and the control logic of the controller is completed by a program resident in the singlechip; the pulse ignition controller is mainly used for pulse ignition controllers with more detection components and execution components and complex control functions, and the pulse ignition controllers are mainly used for gas water heaters and gas heating water heaters, and multifunctional gas cookers and the like.
Example 3
As shown in fig. 3, the present embodiment is different from embodiment 1 in that: the controller is a control circuit (such as a sequential logic circuit), and the control logic is automatically completed by a hardware sequential circuit; the embodiment is commonly used for pulse ignition controllers with simpler control logic relation, and the pulse ignition controllers are mainly used for gas cookers and are gas water heaters with simple functions.
While the invention has been disclosed in connection with preferred embodiments, these embodiments are not intended to limit the scope of practice of the invention. Any person skilled in the art can make appropriate modifications without departing from the scope of the invention, i.e. all equivalent substitutions made according to the invention are within the scope of protection of the invention.
Claims (10)
1. A pulse ignition control method for a gas appliance is characterized in that a controller controls to open a gas valve only after detecting electric sparks of pulse ignition.
2. The pulse ignition control method for a gas appliance according to claim 1, comprising the steps of:
A. the controller sends an ignition instruction to the pulse igniter;
B. the pulse igniter outputs high voltage pulse, and the high voltage pulse is applied to the ignition electrode;
C. the high voltage on the ignition electrode breaks down the air and discharges electric sparks to the combustor;
D. the electric spark identification device identifies electric sparks and sends an identification result to the controller;
E. the controller receives the effective electric spark signal and controls to open the gas valve.
3. The gas appliance pulse ignition control method according to claim 2, wherein the electric spark recognition means in step D includes: signal collector, benchmark production circuit, comparator.
4. The gas appliance pulse ignition control method as set forth in claim 3, wherein said step D further comprises the steps of:
d1, collecting the electric spark energy by a signal collector and converting the electric spark energy into an electric signal;
d2, comparing the electric signal collected by the signal collector with the reference signal of the reference generating circuit through a comparator;
d3, and sending the signal output by the comparator to the controller for processing.
5. The gas appliance pulse ignition control method as set forth in claim 4, wherein said step E further comprises the steps of:
e1, the controller receives the electric spark effective signal sent by the comparator;
e2, the controller sends a signal for opening the gas valve to the electromagnetic valve driver,
e3, the electromagnetic valve driver connects the power supply to the gas valve, and the gas appliance enters the normal combustion working state.
6. The pulse ignition control method for a gas appliance according to claim 2, wherein the controller is a single chip microcomputer, and the control logic thereof is completed by a program residing in the single chip microcomputer; the gas appliance comprises a gas water heater, a gas heating water heater and a multifunctional gas cooker.
7. The pulse ignition control method for a gas appliance according to claim 2, wherein the controller is a control circuit, and the gas appliance includes a gas cooker and a gas water heater with a simple function.
8. The gas appliance pulse ignition control method according to claim 7, wherein said control circuit is a sequential logic circuit.
9. The gas appliance pulse ignition control method according to claim 4, wherein in step D, the spark energy is converted into a voltage signal.
10. The gas appliance pulse ignition control method according to one of claims 1 to 9, wherein the gas appliance pulse ignition control method employs closed-loop control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910746350.5A CN112393276A (en) | 2019-08-13 | 2019-08-13 | Pulse ignition control method for gas appliance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910746350.5A CN112393276A (en) | 2019-08-13 | 2019-08-13 | Pulse ignition control method for gas appliance |
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| CN112393276A true CN112393276A (en) | 2021-02-23 |
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| CN201910746350.5A Pending CN112393276A (en) | 2019-08-13 | 2019-08-13 | Pulse ignition control method for gas appliance |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2185846Y (en) * | 1994-01-19 | 1994-12-21 | 广东神州集团公司 | Igniter with damp-roof safety function for water heater |
| CN1240121A (en) * | 1998-06-19 | 2000-01-05 | 湖南迅达集团有限公司 | Automatic controller for cooking utensils |
| CN2438050Y (en) * | 2000-06-13 | 2001-07-04 | 朱正昌 | Safety enforced discharge gas water heater |
| CN101474762A (en) * | 2009-01-08 | 2009-07-08 | 上海交通大学 | Electric spark clearance discharge condition detection apparatus and method based on wavelet transformation |
| CN201944901U (en) * | 2010-12-23 | 2011-08-24 | 何开举 | Ethanol combustor |
| CN104655709A (en) * | 2013-11-18 | 2015-05-27 | 青岛网媒软件有限公司 | High voltage pulse discharge humidity detection apparatus |
| CN108150333A (en) * | 2016-12-05 | 2018-06-12 | 株式会社电装 | Iganition control system |
| CN208026830U (en) * | 2018-01-19 | 2018-10-30 | 一汽-大众汽车有限公司 | A kind of device in X -ray inspection X spark plug proof voltage energy |
| CN108957293A (en) * | 2018-07-23 | 2018-12-07 | 三门康创电子科技有限公司 | A kind of zero pulse per second (PPS) igniter production detection device |
-
2019
- 2019-08-13 CN CN201910746350.5A patent/CN112393276A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2185846Y (en) * | 1994-01-19 | 1994-12-21 | 广东神州集团公司 | Igniter with damp-roof safety function for water heater |
| CN1240121A (en) * | 1998-06-19 | 2000-01-05 | 湖南迅达集团有限公司 | Automatic controller for cooking utensils |
| CN2438050Y (en) * | 2000-06-13 | 2001-07-04 | 朱正昌 | Safety enforced discharge gas water heater |
| CN101474762A (en) * | 2009-01-08 | 2009-07-08 | 上海交通大学 | Electric spark clearance discharge condition detection apparatus and method based on wavelet transformation |
| CN201944901U (en) * | 2010-12-23 | 2011-08-24 | 何开举 | Ethanol combustor |
| CN104655709A (en) * | 2013-11-18 | 2015-05-27 | 青岛网媒软件有限公司 | High voltage pulse discharge humidity detection apparatus |
| CN108150333A (en) * | 2016-12-05 | 2018-06-12 | 株式会社电装 | Iganition control system |
| CN208026830U (en) * | 2018-01-19 | 2018-10-30 | 一汽-大众汽车有限公司 | A kind of device in X -ray inspection X spark plug proof voltage energy |
| CN108957293A (en) * | 2018-07-23 | 2018-12-07 | 三门康创电子科技有限公司 | A kind of zero pulse per second (PPS) igniter production detection device |
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Application publication date: 20210223 |
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