CN115451576A - Control method and device for gas heating water heater after ignition fault - Google Patents

Control method and device for gas heating water heater after ignition fault Download PDF

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Publication number
CN115451576A
CN115451576A CN202211099756.7A CN202211099756A CN115451576A CN 115451576 A CN115451576 A CN 115451576A CN 202211099756 A CN202211099756 A CN 202211099756A CN 115451576 A CN115451576 A CN 115451576A
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China
Prior art keywords
ignition
starting
program
fan
water heater
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Chinese (zh)
Inventor
曹裕政
杨涛
付荣强
常远征
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Guangzhou Devotion Home Environment Technology Co ltd
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Guangzhou Devotion Home Environment Technology Co ltd
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Priority to CN202211099756.7A priority Critical patent/CN115451576A/en
Publication of CN115451576A publication Critical patent/CN115451576A/en
Pending legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/0027Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters using fluid fuel
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24DDOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00Details
    • F24D19/10Arrangement or mounting of control or safety devices
    • F24D19/1006Arrangement or mounting of control or safety devices for water heating systems
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/48Water heaters for central heating incorporating heaters for domestic water
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00Control of fluid heaters
    • F24H15/10Control of fluid heaters characterised by the purpose of the control
    • F24H15/104Inspection; Diagnosis; Trial operation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00Control of fluid heaters
    • F24H15/20Control of fluid heaters characterised by control inputs
    • F24H15/212Temperature of the water
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00Control of fluid heaters
    • F24H15/20Control of fluid heaters characterised by control inputs
    • F24H15/269Time, e.g. hour or date
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24HFLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00Details
    • F24H9/20Arrangement or mounting of control or safety devices
    • F24H9/2007Arrangement or mounting of control or safety devices for water heaters
    • F24H9/2035Arrangement or mounting of control or safety devices for water heaters using fluid fuel

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Control Of Combustion (AREA)

Abstract

The invention discloses a control method and a device thereof after ignition failure of a gas heating water heater, wherein the control method comprises the following steps of starting timing when the failure E1 occurs, and restarting a system ignition program every other time period; if the ignition fails, recording the starting times of the ignition program; acquiring the starting times of the current accumulated ignition program, and if the starting times of the current accumulated ignition program are not more than a preset maximum ignition program starting time threshold, returning; if the starting times of the current accumulated ignition program are larger than the threshold value of the starting times of the preset maximum ignition program, locking a fault code, and starting the furnace body again after manual reset; if the ignition is successful, the fault code is eliminated. According to the control method, after the fault E1 is reported, the water heater can be automatically ignited for a period of time, a user does not need to manually reset a fault code, automatic operation of only old people and children after air supply is stopped at night or at home is facilitated, the water heater automatically conducts ignition attempt, convenience is provided, and meanwhile extra cost is not increased.

Description

Control method and device for gas heating water heater after ignition fault
Technical Field
The invention relates to the technical field of gas heating water heaters, in particular to a control method and a control device for a gas heating water heater after ignition failure.
Background
The gas heating water heater (also called as wall-mounted boiler) uses gas combustion to heat water, and is used for heating and supplying hot water to indoor or other heating places. The gas heating water heater can provide heating for customers all day long according to the requirement. At ordinary times, due to the situations of municipal construction or pipeline maintenance and the like, the phenomenon of short-time gas cut-off of natural gas supply is caused, after the gas cut-off, flame can not be ignited due to lack of gas or too low gas pressure of the hot water boiler, and the fault that the flame can not be detected can be generated, and the fault is defined as an E1 fault. The conventional condition that flame failure cannot be detected is that the flame failure occurs in normal operation and ignition of the system, flame cannot be detected after continuous ignition for 3 times in a short time, the system can report an E1 failure (flame failure code cannot be detected), the failure is locked, and the water heater cannot automatically operate again, so that heating and hot water supply stop operation is caused.
And the user wants to let the hot-water boiler continue normal operation, and the hot-water boiler just resumes normal operation after need going on before the machine and resetting manually, especially night or when only old man child is at home, because old man child mostly can not operate, seems extremely inconvenient through the method of manual reset.
At present, when the "E1" fault occurs, the user does not feel or cannot find that the water heater stops operating and the heating system stops operating for a short time, and only when the user feels cold or does not supply hot water, the user thinks that the water heater does not operate. Especially at night, it is more difficult for users to recognize problems with the water heater during sleep. Some producers are provided with the reset mode of cell-phone APP or applet in the hot-water boiler, need not to operate before the hot-water boiler face, but need purchase WIFI and receive box or temperature controller to increase the extra expense of producer and reform transform equipment.
Disclosure of Invention
In order to overcome the defects of the prior art, one of the objectives of the present invention is to provide a control method for a gas-fired water heater after an ignition failure, which solves the above-mentioned conventional problems, and after a failure is reported, the water heater will ignite for a while by itself, without resetting the failure code manually by a user, and without increasing additional cost while providing convenience.
The invention also aims to provide a control device for the gas heating water heater after ignition failure by adopting the control method.
One of the purposes of the invention is realized by adopting the following technical scheme:
a control method for a gas heating water heater after ignition failure comprises the following steps:
s1: when an ignition fault E1 occurs in the gas heating water heater, starting timing, and starting a system ignition program again every time interval;
s2: if the ignition fails, recording the starting times of the ignition program; acquiring the starting times of the current accumulated ignition program, if the starting times of the current accumulated ignition program are not more than a preset maximum ignition program starting time threshold, returning to the step S1 for starting timing, and restarting the system ignition program every time a time period is separated; if the starting times of the current accumulated ignition program are larger than the threshold value of the starting times of the preset maximum ignition program, locking a fault code, and starting the furnace body again after manual reset;
s3: if the ignition is successful, the fault code is eliminated, the normal running state of the furnace body is recovered, and the system supplies heat or supplies heat.
Preferably, in step S1, before the step of starting the entry timing, the method further includes:
and starting the fan to perform post-purging on the combustion chamber.
Preferably, the fan voltage is 220V, and the time of the post-purge is 10s-30s.
Preferably, in step S1, every other time period, the step of restarting the system ignition program is to start the ignition program 1 time every 30 minutes in 6 hours, and the preset maximum ignition program start time threshold is 12 times.
Preferably, in step S1, the starting step of the ignition program is:
s11: detection system set temperature T Setting up With the current water temperature T At present Whether the temperature difference T meets the current set temperature difference T Temperature difference And whether the detection system has residual fire or not is detected, whether the wind pressure switch is closed or not is detected, and if the detection items meet the requirements: t is Setting up -T At present ≥T Temperature difference If the system has no residual fire and the wind pressure switch is not closed, the next step S12 is started;
s12: starting the fan, closing the wind pressure switch, detecting whether the wind pressure switch is closed again, if the wind pressure switch is closed, detecting the rotating speed of the fan, detecting whether the rotating speed of the fan is normal, and if the rotating speed of the fan is normal, starting the next step S13;
s13: starting a pre-purging program, rotating the fan at the maximum rotating speed, and completing pre-purging within the pre-purging time;
s14: after pre-purging, reducing the voltage of the fan to 160V, opening the gas valve, enabling the system to enter an ignition program, detecting whether the system has flames or not, if the system has flames, performing PID (proportion integration differentiation) adjustment, if the system has no flames, closing the gas valve and the fan, calculating the continuous ignition frequency, and if the continuous ignition frequency is less than 3 times, returning to the step S11.
Preferably, in step S11, the current set temperature difference is 15 ℃, and the current water temperature is the outlet water temperature of the main heat exchanger.
Preferably, in step S12, the method for determining whether the fan rotation speed is normal includes: detecting the voltage of the fan, if the voltage of the fan is less than 160V, judging that the rotating speed of the fan is too low and abnormal, and if the voltage of the fan is not less than 160V, judging that the rotating speed of the fan is normal.
Preferably, in step S13, the voltage of the maximum rotation speed of the fan is 220V, and the pre-purge time is 10S.
The second purpose of the invention is realized by adopting the following technical scheme:
the utility model provides a controlling means after ignition trouble of gas heating water heater which characterized in that includes:
the timing module is used for starting timing when the ignition fault E1 occurs to the gas heating water heater, and restarting a system ignition program every other time period;
the judging module is used for recording the starting times of the ignition program if the ignition fails; acquiring the starting times of the current accumulated ignition program, if the starting times of the current accumulated ignition program are not more than a preset maximum ignition program starting time threshold, returning to the step of starting timing, and restarting the system ignition program every time a time period is separated; if the starting times of the current accumulated ignition program are larger than the threshold value of the starting times of the preset maximum ignition program, locking a fault code, and starting the furnace body again after manual reset;
and the elimination module is used for eliminating fault codes if the ignition is successful, recovering the normal running state of the furnace body and supplying heat to the system.
Preferably, the control device further includes:
and the rear blowing module is used for starting the fan and blowing the combustion chamber.
Compared with the prior art, the invention has the beneficial effects that:
according to the control method, after the fault E1 is reported, the water heater can be automatically ignited for a period of time, a user does not need to manually reset a fault code, automatic operation after air supply is stopped for only old people and children at night or at home is facilitated, the water heater automatically performs ignition attempt, convenience is provided, and meanwhile extra cost is not increased.
The control method of the invention adopts the ignition program which is started every 30 minutes within 6 hours for 1 time, can provide enough time interval for the water heater to automatically ignite and try, solves the traditional problem that the air supply and hot water supply stop operation caused by the air stop phenomenon in municipal construction or pipeline maintenance and the like, and can automatically solve the air stop problem of the water heater in a short time.
Drawings
FIG. 1 is a schematic flow chart illustrating a control method of a gas heating water heater after an ignition failure according to the present invention;
fig. 2 is a schematic diagram of the starting flow of the ignition process of the control method of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanying figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, as those skilled in the art will recognize without departing from the spirit and scope of the present invention.
In the description of the present invention, it is to be understood that the terms "first", "second" and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly specified otherwise.
In the description of the present invention, it should be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly connected" to another element, there are no intervening elements present.
Referring to fig. 1, a control flow chart of a control method after ignition failure of a gas heating water heater according to a preferred embodiment of the present invention is shown, wherein the control method includes the following steps:
s1: when an ignition fault E1 occurs in the gas heating water heater, the system starts timing, and the system ignition program is started again every time interval;
that is, the hot water boiler cannot ignite flame due to lack of gas or too low gas pressure, an E1 fault that the flame cannot be detected is reported, the system is in a fault state, and the fault code can be cancelled only by on-site resetting. By adopting the operation mode of restarting the system ignition program every time interval, the problems can be solved, and meanwhile, the hot water boiler automatically ignites again without waiting for a user.
In one embodiment, before the step of starting to enter the timing in step S1, the method further includes: and the fan is started to blow the combustion chamber, so that residual combustible gas in the combustion chamber is blown out, and other bad phenomena are avoided after the secondary ignition. Preferably, the fan voltage is 220V, and the time of the post-purging is 10s-30s. Meanwhile, before the ignition program is started again, the water pump is required to normally operate to drive the system water to normally circulate.
In this embodiment, in step S1, every other time period, the step of restarting the system ignition program is to start the ignition program 1 time every 30 minutes in 6 hours, and the preset maximum ignition program start frequency threshold is 12 times. I.e., every 30 minutes, the ignition sequence is restarted to provide a sufficient time interval for the hot water boiler to perform its own ignition attempt, and in other embodiments, the time interval is every 10 minutes or every 20 minutes or every 40 minutes or every 50 minutes or every 60 minutes, etc., and is not limited to every 30 minutes within 6 hours of the present embodiment.
Alternatively, in step S1, as shown in fig. 2, the starting step of the ignition procedure is:
s11: detection system set temperature T Setting up With the current water temperature T At present Whether the temperature difference T is in accordance with the current set temperature difference Temperature difference And whether the detection system has residual fire or not is detected, whether a wind pressure switch is closed or not is detected, and if the detection items meet the requirements: t is Setting up -T At present ≥T Temperature difference If the system has no residual fire and the wind pressure switch is not closed, the next step S12 is started; wherein the current set temperature difference is 15 ℃, and the current water temperature is the outlet water temperature of the main heat exchanger.
In this step, if T Setting up -T At present <T Temperature difference And then the starting is not carried out, namely the temperature difference is proved to be in the range, and the circulating water or the hot water is not required to be heated. If the system has residual fire, the F5 fault is reported, and the system can be started only by manual reset after inspection. If the wind pressure switch is closed, the E3 fault is reported, and the wind pressure switch can be restarted after being checked by a professional.
S12: starting the fan, closing the wind pressure switch, detecting whether the wind pressure switch is closed again, if the wind pressure switch is closed, detecting the rotating speed of the fan, detecting whether the rotating speed of the fan is normal, and if the rotating speed of the fan is normal, starting the next step S13;
in the step, after the fan rotates, the wind pressure switch is closed, whether the wind pressure switch is closed or not is detected again, and if the wind pressure switch is not closed, an E3 fault is reported; and if the fan is closed, detecting the rotating speed of the fan, reporting the F3 fault if the rotating speed of the fan is too low, and entering the next step if the rotating speed is too low.
In one embodiment, the method for determining whether the rotation speed of the fan is normal includes: and detecting the voltage of the fan, if the voltage of the fan is less than 160V, judging that the rotating speed of the fan is too low and abnormal, and if the voltage of the fan is not less than 160V, judging that the rotating speed of the fan is normal.
S13: starting a pre-purging program, rotating the fan at the maximum rotating speed, and completing pre-purging within the pre-purging time; the voltage of the maximum rotating speed of the fan is 220V, and the pre-purging time is 10s. It will be appreciated that the pre-purge time may also be 5s, 20s, 30s, 40s, etc.
S14: after pre-purging, reducing the voltage of the fan to 160V, opening the gas valve, enabling the system to enter an ignition program, detecting whether the system has flames or not, if the system has flames, performing PID (proportion integration differentiation) adjustment, if the system has no flames, closing the gas valve and the fan, calculating the continuous ignition frequency, and if the continuous ignition frequency is less than 3 times, returning to the step S11.
In the step, whether flames exist or not is detected, the PID adjustment is carried out, and the fan voltage and the proportional valve current value are adjusted according to actual conditions. And after the temperature is reached, the gas valve is closed, the flameout is carried out, and the blower carries out back purging. If the flame cannot be detected, the system closes the air valve, closes the fan and starts to calculate whether the ignition frequency is more than 3 times. If the number of times is less than 3, repeating the steps. And if the number of times is more than 3, reporting an E1 fault.
S2: if the ignition fails within the preset time, recording the starting times of the ignition program; acquiring the starting times of the current accumulated ignition program, if the starting times of the current accumulated ignition program are not more than a preset maximum ignition program starting time threshold, returning to the step S1 for starting timing, and restarting the system ignition program every time a time period is separated; if the starting times of the current accumulated ignition program are larger than the threshold value of the starting times of the preset maximum ignition program, locking a fault code, and starting the furnace body again after manual reset;
namely, the starting times of the current accumulated ignition program are greater than the preset maximum ignition program starting time threshold value by 12 times, the fault code is locked, the furnace body can be restarted after manual reset, understandably, the ignition is carried out for 12 times, and after 6 hours, the gas stopping state still exists, at the moment, a gas company needs to be contacted, the gas supply time provided by the gas company is waited, and the gas company is reset and started again.
S3: if the ignition is successful within the preset time, the fault code is eliminated, the normal running state of the furnace body is recovered, and the system supplies heat or supplies heat.
In another embodiment, after the system starts entering the timer, the method further comprises the following steps:
and (4) igniting the gas valve, and detecting whether the gas valve is in a normal opening and closing state. The step is to judge by detecting the change condition of the current value flowing into the gas valve during the action of the gas valve, if the current value changes, the gas valve is proved to be in a normal switching state, and if the current value does not change, the gas valve is proved to be in a fault state. Other influences are removed to improve the operation safety of the water heater.
According to the control method, after the fault E1 is reported, the water heater can be automatically ignited for a period of time, a user does not need to manually reset a fault code, automatic operation of the old and children after air supply stoppage at night or at home is facilitated, the water heater automatically conducts ignition attempt, convenience is provided, and meanwhile extra cost is not increased.
In another embodiment, the invention further provides a control device, which is used for being installed on a gas heating water heater, the control device comprises a control system provided with the control method, and the control system is used for being electrically connected with the gas heating water heater.
Namely, the control device adopts the ignition program which is started every 30 minutes within 6 hours for 1 time, can provide enough time intervals for the water heater to carry out the ignition attempt by itself, solves the traditional problem of the stop of the heating and the hot water supply caused by the stop of the air due to the conditions of municipal construction or pipeline maintenance and the like, and can automatically solve the problem of the stop of the air of the water heater in a short time.
In one embodiment, the control system further includes:
the rear blowing module is used for starting the fan and blowing the combustion chamber;
the timing module is used for starting timing when the ignition fault E1 occurs to the gas heating water heater, and starting the system ignition program again every time interval;
the judging module is used for recording the starting times of the ignition program if the ignition fails; acquiring the starting times of the current accumulated ignition program, if the starting times of the current accumulated ignition program are not more than a preset maximum ignition program starting time threshold, returning to start timing, and restarting the system ignition program every time interval; if the starting times of the current accumulated ignition program are larger than the threshold value of the starting times of the preset maximum ignition program, locking a fault code, and starting the furnace body again after manual reset;
and the elimination module is used for eliminating fault codes if the ignition is successful, recovering the normal running state of the furnace body and supplying heat to the system.
Namely, the control device executes the control method through the modules to realize that the water heater performs the ignition attempt by itself.
All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that various changes and modifications can be made by those skilled in the art without departing from the spirit of the invention, and these changes and modifications are all within the scope of the invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A control method for a gas heating water heater after ignition failure is characterized by comprising the following steps:
s1: when an ignition fault E1 occurs in the gas heating water heater, starting timing, and starting a system ignition program again every time interval;
s2: if the ignition fails, recording the starting times of the ignition program; acquiring the starting times of the current accumulated ignition program, if the starting times of the current accumulated ignition program are not more than a preset maximum ignition program starting time threshold, returning to the step S1 for starting timing, and restarting the system ignition program every time a time period is separated; if the starting times of the current accumulated ignition program are larger than the threshold value of the starting times of the preset maximum ignition program, locking a fault code, and starting the furnace body again after manual reset;
s3: if the ignition is successful, the fault code is eliminated, the normal running state of the furnace body is recovered, and the system supplies heat or supplies heat.
2. The method for controlling the gas-fired heating water heater after the ignition failure according to claim 1, wherein before the step of starting the timing in step S1, the method further comprises:
and starting the fan to perform post-purging on the combustion chamber.
3. The control method after the ignition fault of the gas-fired heating water heater according to claim 2, wherein the fan voltage is 220V, and the time of the post-purge is 10s-30s.
4. The control method after the ignition fault of the gas-heating water heater according to claim 1, wherein in the step S1, every time a time interval exists, the step of restarting the ignition program of the system is to start the ignition program 1 time every 30 minutes within 6 hours, and the threshold of the maximum number of times of starting the ignition program is preset to be 12 times.
5. The control method after the ignition failure of the gas-fired heating water heater according to claim 4, wherein in the step S1, the starting step of the ignition program is as follows:
s11: detection system set temperature T Setting up With the current water temperature T At present Whether the temperature difference T meets the current set temperature difference T Temperature difference And whether the detection system has residual fire or not is detected, whether a wind pressure switch is closed or not is detected, and if the detection items meet the requirements: t is a unit of Setting up -T At present ≥T Temperature difference If the system has no residual fire and the wind pressure switch is not closed, the next step S12 is started;
s12: starting the fan, closing the wind pressure switch, detecting whether the wind pressure switch is closed again, if the wind pressure switch is closed, detecting the rotating speed of the fan, detecting whether the rotating speed of the fan is normal, and if the rotating speed of the fan is normal, starting the next step S13;
s13: starting a pre-purging program, rotating the fan at the maximum rotating speed, and completing pre-purging within the pre-purging time;
s14: after pre-purging, reducing the voltage of the fan to 160V, opening the gas valve, enabling the system to enter an ignition program, detecting whether the system has flames or not, if the system has the flames, performing PID (proportion integration differentiation) regulation, if the system has no flames, closing the gas valve and the fan, calculating the continuous ignition frequency, and if the continuous ignition frequency is less than 3 times, returning to the step S11.
6. The control method after the ignition failure of the gas-fired water heater according to claim 5, wherein in step S11, the current set temperature difference is 15 ℃, and the current water temperature is the outlet water temperature of the main heat exchanger.
7. The control method after the ignition fault of the gas-fired heating water heater according to claim 5, wherein in the step S12, the method for judging whether the rotation speed of the fan is normal is as follows: detecting the voltage of the fan, if the voltage of the fan is less than 160V, judging that the rotating speed of the fan is too low and abnormal, and if the voltage of the fan is not less than 160V, judging that the rotating speed of the fan is normal.
8. The method for controlling the gas-fired heating water heater after the ignition failure according to claim 5, wherein in the step S13, the voltage of the maximum rotation speed of the fan is 220V, and the pre-purging time is 10S.
9. The utility model provides a controlling means after ignition trouble of gas heating water heater which characterized in that includes:
the timing module is used for starting timing when the ignition fault E1 occurs to the gas heating water heater, and starting the system ignition program again every time interval;
the judging module is used for recording the starting times of the ignition program if the ignition fails; acquiring the starting times of the current accumulated ignition program, if the starting times of the current accumulated ignition program are not more than a preset maximum ignition program starting time threshold, returning to start timing, and restarting the system ignition program every time interval; if the starting times of the current accumulated ignition program are larger than the threshold value of the starting times of the preset maximum ignition program, locking a fault code, and starting the furnace body again after manual reset;
and the elimination module is used for eliminating fault codes if the ignition is successful, recovering the normal running state of the furnace body and supplying heat to the system.
10. The control device after ignition failure of the gas-fired heating water heater according to claim 9, further comprising:
and the rear blowing module is used for starting the fan and performing rear blowing on the combustion chamber.
CN202211099756.7A 2022-09-09 2022-09-09 Control method and device for gas heating water heater after ignition fault Pending CN115451576A (en)

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CN202211099756.7A CN115451576A (en) 2022-09-09 2022-09-09 Control method and device for gas heating water heater after ignition fault

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CN202211099756.7A CN115451576A (en) 2022-09-09 2022-09-09 Control method and device for gas heating water heater after ignition fault

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116026043A (en) * 2022-12-30 2023-04-28 广东万和热能科技有限公司 Wind pressure switch control method and device for gas heating water heater

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116026043A (en) * 2022-12-30 2023-04-28 广东万和热能科技有限公司 Wind pressure switch control method and device for gas heating water heater

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