EP3309473B1 - Chauffe-eau au gaz et système et procédé de commande de sécurité s'y rapportant - Google Patents

Chauffe-eau au gaz et système et procédé de commande de sécurité s'y rapportant Download PDF

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Publication number
EP3309473B1
EP3309473B1 EP16869367.9A EP16869367A EP3309473B1 EP 3309473 B1 EP3309473 B1 EP 3309473B1 EP 16869367 A EP16869367 A EP 16869367A EP 3309473 B1 EP3309473 B1 EP 3309473B1
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EP
European Patent Office
Prior art keywords
rotational speed
exhaust fan
output power
water heater
set value
Prior art date
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EP16869367.9A
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German (de)
English (en)
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EP3309473A4 (fr
EP3309473A1 (fr
Inventor
Chengzhi XUE
Guorong LIANG
Xianfeng Dai
Zefeng LIANG
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Wuhu Midea Kitchen and Bath Appliances Manufacturing Co Ltd
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Wuhu Midea Kitchen and Bath Appliances Manufacturing Co Ltd
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Publication of EP3309473A1 publication Critical patent/EP3309473A1/fr
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Classifications

    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23N—REGULATING OR CONTROLLING COMBUSTION
    • F23N3/00—Regulating air supply or draught
    • F23N3/08—Regulating air supply or draught by power-assisted systems
    • F23N3/082—Regulating air supply or draught by power-assisted systems using electronic means
    • 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
    • F24H15/00—Control of fluid heaters
    • F24H15/10—Control of fluid heaters characterised by the purpose of the control
    • F24H15/174—Supplying heated water with desired temperature or desired range of temperature
    • 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
    • F24H15/00—Control of fluid heaters
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • 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
    • F24H15/00—Control of fluid heaters
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/212—Temperature of the water
    • F24H15/215—Temperature of the water before heating
    • 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
    • F24H15/00—Control of fluid heaters
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/212—Temperature of the water
    • F24H15/219—Temperature of the water after heating
    • 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
    • F24H15/00—Control of fluid heaters
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/242—Pressure
    • 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
    • F24H15/00—Control of fluid heaters
    • F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/305—Control of valves
    • F24H15/31—Control of valves of valves having only one inlet port and one outlet port, e.g. flow rate regulating valves
    • 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
    • F24H15/00—Control of fluid heaters
    • F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/345—Control of fans, e.g. on-off control
    • F24H15/35—Control of the speed of fans

Definitions

  • the present disclosure relates to the water heater technology field, and more particular to, a gas water heater, a safety control method for a gas water heater, and a safety control system for a gas water heater.
  • gas water heaters on the market typically include: D type (natural exhaust type) gas water heaters, Q type (forced exhaust type) gas water heaters, P type (natural exhaust and air supply type) gas water heaters, G type (forced exhaust and air supply type) gas water heaters and W type (outside set-up type) gas water heaters and so on.
  • D type natural exhaust type
  • Q type forced exhaust type
  • P type natural exhaust and air supply type
  • G type forced exhaust and air supply type gas water heaters
  • W type outside set-up type gas water heaters and so on.
  • Q type and G type gas water heaters are provided with exhaust fans directly, so as to forcedly exhaust waste gas generated when burning gas, such that the residual gas explosion or the like may be avoided.
  • the Q type gas water heater mostly adopts a wind pressure detecting unit to detect the wind pressure at an air outlet and controls the exhaust fan and an igniter unit according to the detected wind pressure, so as to ensure that the gas water heater may work normally.
  • the combustion operation of the gas water heater in the case of the wind flow backward may be avoided by adopting the wind pressure detecting unit, the device cost is high, and the operation of the gas water heater may be interrupted due to the slight wind pressure, resulting in that the user is unable to use the gas water heater normally.
  • WO2009/107897A1 relates to an apparatus and a method for controlling combustion in a boiler.
  • a proportional electronic valve current detection unit for detecting an amount of current flowing through a proportional electronic valve and transmitting the detected amount of current to a control section is installed.
  • the control section compares an amount of current actually flowing through the proportional electronic valve that is detected by the proportional electronic valve current detection unit and a current command value from the control section and corrects a current value of the proportional electronic valve by increasing or decreasing the current value of the proportional electronic valve based on the difference between the actual amount of current and the current command value.
  • CN102080878A relates to a draught fan control method of gas equipment, comprising the following steps of: A. determining the current working state of the gas equipment; B. controlling the rotation speed of a draught fan according to the current working state of the gas equipment: B 1. judging that the inside combustion air quantity of the gas equipment in combusting is overlarge in the current working state, reducing the rotation speed of the draught fan; B2. judging that the gas equipment is in a normal combusting working state or passable combusting working state, maintaining the current rotation speed of the draught fan; B3. judging that the gas equipment is in a possible incomplete combusting working state, increasing the rotation speed of the draught fan; and B4. judging that the gas equipment is in an exhaust blockage working state, stopping supplying gas for the gas equipment.
  • the present disclosure aims to solve at least one of the above technical problems in the related art to at least some extent.
  • a first objective of the present disclosure aims to provide a safety control system for a gas water heater.
  • the safety control system may ensure that the gas water heater can have a good combustion condition and operate safely and reliably. Also, the response speed of the system is fast and accurate air volume may be provided, such that the control accuracy is improved.
  • a second objective of the present disclosure aims to provide a gas water heater.
  • a third objective of the present disclosure aims to provide a safety control method for a gas water heater.
  • embodiments of a first aspect of the present disclosure provide a safety control system for a gas water heater as set out in claim 5.
  • the power obtaining unit obtains the set value for the output power of the exhaust fan and the rotational speed difference obtaining unit obtains the actual value of the rotational speed of the exhaust fan and the reference value of the rotational speed according to the set value for the output power and calculates the difference between the actual value of the rotational speed and the reference value of the rotational speed, and then the exhaust control unit corrects the rotational speed of the exhaust fan detected by the rotational speed detecting unit according to the difference between the actual value of the rotational speed and the reference value of the rotational speed, determines the wind pressure situation at the air outlet of the exhaust fan according to the corrected rotational speed and the set value for the output power and adjusts the set value for the output power according to the wind pressure situation, such that the adjustment of air volume of the exhaust fan may be realized, and it is guaranteed that a good combustion condition may be achieved after mixing the introduced gas and air during the operation of the gas water heater, thus ensuring that the gas water heater can operate safely and
  • the adjustment of the set value for the output power directly based on the rotational speed difference is an active control, which has a fast response speed and provides more accurate air volume as compared to the passive control on the rotational speed of the exhaust fan, such that the control accuracy is improved.
  • the safety control system for a gas water heater may further have following additional technical features.
  • the exhaust control unit is According to an embodiment of the present disclosure, the above safety control system further includes a system control unit configured to perform a mutual communication with the exhaust control unit, in which the exhaust control unit is configured to send a shut-off signal to the system control unit such that the system control unit controls the gas water heater to shut off according to the shut-off signal, when the exhaust control unit determines that the wind pressure situation is an extreme high wind pressure situation or the corrected rotational speed is higher than a rotational speed threshold.
  • the above safety control system further includes a water supply unit, connected to the system control unit; a temperature obtaining unit, connected with the system control unit, and configured to obtain a set temperature for output water of the gas water heater and a cold water temperature of the gas water heater; in which the system control unit is configured to calculate a total heat required by the gas water heater according to a water supply quantity of the water supply unit, the set temperature for the output water and the cold water temperature, and to obtain a current control instruction and an initial set value for the output power according to the total heat.
  • the above safety control system further includes a gas unit, connected to the system control unit and provided with a proportional valve, in which the system control unit is configured to control the gas unit by controlling the proportional valve according to the current control instruction.
  • the gas water heater is a forced exhaust type gas water heater.
  • embodiments of a second aspect of the present disclosure provide a gas water heater as set out in claim 10.
  • the gas water heater may correct the rotational speed of the exhaust fan according to the difference between the actual value of the rotational speed and the reference value of the rotational speed, determine the wind pressure situation at the air outlet of the exhaust fan according to the corrected rotational speed and the set value for the output power and adjust the set value for the output power according to the wind pressure situation, such that the adjustment of air volume of the exhaust fan may be realized, and it is guaranteed that a good combustion condition may be achieved after mixing the introduced gas and air during the operation of the gas water heater, thus ensuring the safe and reliable operation of the gas water heater.
  • the adjustment of the set value for the output power directly based on the rotational speed difference is an active control, which not only has a fast response speed but also provides more accurate air volume when compared to the passive control on the rotational speed of the exhaust fan, such that the control accuracy is improved.
  • embodiments of a third aspect of the present disclosure provide a safety control method as set out in claim 1.
  • the safety control method for a gas water heater firstly the set value for the output power of the exhaust fan is obtained and the actual value of the rotational speed of the exhaust fan and the reference value of the rotational speed are obtained according to the set value for the output power and the difference between the actual value of the rotational speed and the reference value of the rotational speed is calculated, and then the rotational speed of the exhaust fan is detected and corrected according to the rotational speed difference, the wind pressure situation at the air outlet of the exhaust fan is determined according to the corrected rotational speed and the set value for the output power, and the set value for the output power is adjusted according to the wind pressure situation, such that the adjustment of air volume of the exhaust fan may be realized, and it is guaranteed that a good combustion condition may be achieved after mixing the introduced gas and air during the operation of the gas water heater, thus ensuring a safe and reliable operation of the gas water heater.
  • the adjustment of the set value for the output power directly based on the rotational speed difference is an active control, which not only has a fast response speed but also provides more accurate air volume when compared to the passive control on the rotational speed of the exhaust fan, such that the control accuracy is improved.
  • the safety control method for a gas water heater according to the above embodiments of the present disclosure may further have following additional technical features.
  • determining a wind pressure situation at an air outlet of the exhaust fan according to the corrected rotational speed and the set value for the output power and adjusting the set value for the output power according to the wind pressure situation further includes: controlling the gas water heater to shut off, when it is determined that the wind pressure situation is an extreme high wind pressure situation or the corrected rotational speed is higher than a rotational speed threshold.
  • the above safety control method further includes: obtaining a water supply quantity of the gas water heater, a set temperature for output water of the gas water heater and a cold water temperature of the gas water heater; calculating a total heat required by the gas water heater according to the water supply quantity, the set temperature for the output water and the cold water temperature, and obtaining a current control instruction and an initial set value for the output power according to the total heat; and performing a gas burning control by controlling a proportional valve in a gas unit of the gas water heater according to the current control instruction.
  • Fig. 1 is a block diagram of a safety control system for a gas water heater according to an embodiment of the present disclosure.
  • the safety control system for a gas water heater includes an exhaust fan 10, a rotational speed detecting unit 20, a power obtaining unit 30, a rotational speed difference obtaining unit 40 and an exhaust control unit 50.
  • the exhaust fan 10 is configured to exhaust waste gas generated when the gas water heater burns gas.
  • the rotational speed detecting unit 20 is configured to detect a rotational speed of the exhaust fan 10.
  • the power obtaining unit 30 is configured to obtain a set value for output power of the exhaust fan.
  • the rotational speed difference obtaining unit 40 is configured to obtain an actual value of the rotational speed of the exhaust fan and a reference value of the rotational speed according to the set value for the output power and to calculate a difference between the actual value of the rotational speed and the reference value of the rotational speed.
  • the exhaust control unit 50 is connected to the exhaust fan 10, the rotational speed detecting unit 20, the power obtaining unit 30 and the rotational speed difference obtaining unit 40 respectively.
  • the exhaust control unit 50 is configured to correct the rotational speed of the exhaust fan according to the difference between the actual value of the rotational speed and the reference value of the rotational speed, to determine a wind pressure situation at an air outlet of the exhaust fan 10 according to the corrected rotational speed of the exhaust fan 10 and the set value for the output power of the exhaust fan 10, and to adjust the set value for the output power of the exhaust fan 10.
  • the set value for the output power of the exhaust fan 10 is obtained by the power obtaining unit 30.
  • a sampling and comparison program is executed.
  • the actual value of the rotational speed is obtained by the rotational speed difference obtaining unit 40 according to the set value for the output power of the exhaust fan 10, and the difference between the actual value of the rotational speed and the reference value of the rotational speed is calculated.
  • the rotational speed of the exhaust fan 10 is detected by the rotational speed detecting unit 20 in real time, and the exhaust control unit 50 corrects the detected rotational speed of the exhaust fan 10 according to the above difference, determines the wind pressure situation at the air outlet of the exhaust fan 10 in combination with the set value for the output power of the exhaust fan 10, and then adjusts the set value for the output power of the exhaust fan 10 according to the wind pressure situation, such that the adjustment of air volume of the exhaust fan 10 may be realized, and it is guaranteed that a good combustion condition may be achieved after mixing the introduced gas and air during the operation of the gas water heater, thus ensuring the safety and reliability of the gas water heater.
  • the direct adjustment of the set value for the output power is an active control, which not only has a fast response speed but also provides more accurate air volume when compared to the passive control on the rotational speed of the exhaust fan, such that the control accuracy is improved and the whole system cost is low.
  • the set value for output power of the exhaust fan 10 used for calculating the difference between the actual value of rotational speed and the reference value of the rotational speed may be different from the set value for output power used for determining the wind pressure situation.
  • the set value for output power used for determining the wind pressure situation is the same as the set value for output power to be adjusted.
  • the exhaust control unit 50 when correcting the rotational speed of the exhaust fan 10 according to the difference between the actual value of the rotational speed and the reference value of the rotational speed, the exhaust control unit 50 makes the corrected rotational speed of the exhaust fan 10 be equal to the sum of the rotational speed of the exhaust fan and the difference between the actual value of rotational speed and the reference value of the rotational speed.
  • the set value for the output power of the exhaust fan 10 is controlled to be reduced by a first predetermined value when the exhaust control unit 50 determines that the wind pressure situation of the exhaust fan 10 is a low wind pressure situation; the set value for the output power of the exhaust fan 10 is controlled to keep unchanged when the exhaust control unit 50 determines that the wind pressure situation of the exhaust fan 10 is a medium wind pressure situation; and the set value for the output power of the exhaust fan 10 is controlled to be increased by a second predetermined value when the exhaust control unit 50 determines that the wind pressure situation of the exhaust fan 10 is a high wind pressure situation.
  • the first predetermined value and the second predetermined value may be determined according to actual situations, which may be fixed values or may be adjusted dynamically according to actual situations
  • R is the rotational speed of the exhaust fan detected by the rotational speed detecting unit 20
  • dn is the difference between the actual value of the rotational speed and the reference value of the rotational speed of the exhaust fan 10. Since there may be difference in the performances of different exhaust fans and performances of whole systems when the gas water heaters are produced in batches, the control accuracy of the gas water heater may be affected. Therefore, the difference correction may be performed on the rotational speed of exhaust fan based on the difference of the actual value of the rotational speed and the reference value of the rotational speed of the exhaust fan 10.
  • the above safety control system for a gas water heater further includes a system control unit 60.
  • the system control unit 60 is configured to perform a mutual communication with the exhaust control unit 50. If the exhaust control unit 50 determines the wind pressure situation at the air outlet is an extreme high wind pressure situation or the corrected rotational speed of the exhaust fan 10 is higher than a rotational speed threshold, the exhaust control unit 50 sends a shut-off signal to the system control unit 60, such that the system control unit 60 controls the gas water heater to shut off according to the shut-off signal.
  • the above safety control system for a gas water heater further includes a water supply unit 70 and a temperature obtaining unit (not shown).
  • the water supply unit 70 is connected to the system control unit 60, and the temperature obtaining unit is also connected to the system control unit 60.
  • the temperature obtaining unit is configured to obtain set temperature for output water of the gas water heater and a cold water temperature of the gas water heater.
  • the system control unit 60 is configured to calculate a total heat required by the gas water heater according to a water supply quantity of the water supply unit 70, the set temperature for the output water and the cold water temperature, and to obtain a current control instruction and an initial set value for the output power of the exhaust fan 10 according to the total heat.
  • the above safety control system for a gas water heater further includes a gas unit 80 connected to the system control unit 60 and provided with a proportional valve (not shown).
  • the system control unit 60 is configured to control the gas unit 80 by controlling the proportional valve according to the current control instruction.
  • the system control unit 60 firstly calculates the total heat required by the gas water heater for warming the cold water to the set temperature for output water according to the set temperature for output water set by the user, the water supply quantity of the water supply unit 70 and the cold water temperature. And then, as shown in Fig. 4 , the system control unit 60 obtains the control quantity of the proportional valve in the gas unit 80 and the set value for output power to be configured as an initial set value for output power according to the total heat required by the gas water heater. Finally, the system control unit 50 controls the proportional valve according to the obtained control quantity so as to control the gas unit 80, and sends the initial set value for output power to the exhaust control unit 50 via the CAN bus or the like.
  • the reference value for the rotational speed of the exhaust fan 10 may be obtained according to the set value for output power of the exhaust fan 10, and a sampling and comparison program is executed, i.e., the actual value of the rotational speed corresponding to the set value for output power is detected, so as to obtain the difference between the actual value of the rotational speed and the reference value of the rotational speed.
  • the set value for output power obtained according to the total heat required by the gas water heater is the same as the set value for output power used to determine the wind pressure situation at the air outlet and the set value for output power to be adjusted.
  • the gas water heater is controlled to shut off.
  • the system control unit 60 obtains the control quantity of the proportional valve and the set value for output power again, and controls the gas water heater based on the above-mentioned procedure.
  • the gas water heater may be a forced exhaust type gas water heater, which is not limited herein.
  • the safety control system for a gas water heater firstly the set value for the output power of the exhaust fan 10 is obtained by the power obtaining unit, a sampling comparison program is executed so as to obtain the actual value of the rotational speed by the rotational speed difference obtaining unit according to the set value for the output power of the exhaust fan, and the difference between the actual value of the rotational speed and the reference value of the rotational speed is calculated.
  • the exhaust control unit corrects the rotational speed of the exhaust fan according to the difference between the actual value of the rotational speed and the reference value of the rotational speed, determines the wind pressure situation at the air outlet of the exhaust fan according to the corrected rotational speed and the set value for the output power of the exhaust fan, and further adjusts the set value for the output power of the exhaust fan according to the wind pressure situation, such that the adjustment of air volume of the exhaust fan may be realized, and it is guaranteed that a good combustion condition may be achieved after mixing the introduced gas and air during the operation of the gas water heater, thus ensuring the safe and reliable operation of the gas water heater.
  • the adjustment of the set value for the output power directly based on the corrected rotational speed is an active control, which not only has a fast response speed but also provides more accurate air volume when compared to the passive control on the rotational speed of the exhaust fan, such that the control accuracy is improved.
  • Fig. 6 is a flow chart of a safety control method for a gas water heater according to an embodiment of the present disclosure. As shown in Fig. 6 , the safety control method includes following steps.
  • step S1 a set value for output power of the exhaust fan is obtained and a reference value of rotational speed of the exhaust fan corresponding to the set value for output power is obtained.
  • step S2 an actual value of the rotational speed of the exhaust fan is obtained according to the set value for output power, and a difference between the actual value of the rotational speed and the reference value of the rotational speed is calculated.
  • step S3 the rotational speed of the exhaust fan is detected.
  • step S4 the rotational speed of the exhaust fan is corrected according to the difference between the actual value of the rotational speed and the reference value of the rotational speed, a wind pressure situation at an air outlet of the exhaust fan is determined according to the corrected rotational speed and the set value for output power, and the set value for output power is adjusted according to the wind pressure situation.
  • the set value for the output power of the exhaust fan is obtained.
  • a sampling and comparison program is executed.
  • the actual value of the rotational speed is obtained by the rotational speed difference obtaining unit according to the set value for the output power of the exhaust fan, and the difference between the actual value of the rotational speed and the reference value of the rotational speed is calculated.
  • the rotational speed of the exhaust fan is detected in real time, and the detected rotational speed of the exhaust fan is corrected according to the difference between the actual value of the rotational speed and the reference value of the rotational speed, the wind pressure situation at the air outlet of the exhaust fan is determined in combination with the set value for the output power of the exhaust fan, and then the set value for the output power of the exhaust fan is adjusted according to the wind pressure situation, such that the adjustment of air volume of the exhaust fan may be realized, and it is guaranteed that a good combustion condition may be achieved after mixing the introduced gas and air during the operation of the gas water heater, so as to ensure the safety and reliability of the gas water heater.
  • the direct adjustment of the set value for the output power is an active control, which not only has a fast response speed but also provides more accurate air volume when compared to the passive control on the rotational speed of the exhaust fan, such that the control accuracy is improved.
  • the above set value for output power of the exhaust fan 10 used for calculating the difference between the actual value of rotational speed and the reference value of the rotational speed may be different from the set value for output power used for determining the wind pressure situation.
  • the set value for output power used for determining the wind pressure situation is the same as the set value for output power to be adjusted.
  • the corrected rotational speed of the exhaust fan when correcting the rotational speed of the exhaust fan according to the difference between the actual value of the rotational speed and the reference value of the rotational speed, the corrected rotational speed of the exhaust fan is controlled to be equal to the sum of the rotational speed of the exhaust fan and the difference.
  • determining a wind pressure situation at an air outlet of the exhaust fan according to the corrected rotational speed and the set value for the output power and adjusting the set value for the output power according to the wind pressure situation includes: controlling the set value for the output power to be reduced by a first predetermined value when it is determined that the wind pressure situation is a low wind pressure situation; controlling the set value for the output power to keep unchanged when it is determined that the wind pressure situation is a medium wind pressure situation; and controlling the set value for the output power to be increased by a second predetermined value when it is determined that the wind pressure situation is a high wind pressure situation.
  • R is the detected rotational speed of the exhaust fan
  • dn is the difference between the actual value of the rotational speed and the reference value of the rotational speed of the exhaust fan. Since there may be difference in the performances of different exhaust fans and performances of whole systems when the gas water heaters are produced in batches, the control accuracy of the gas water heater may be affected. Therefore, the difference correction may be performed on the rotational speed of exhaust fan based on the difference of the actual value of the rotational speed and the reference value of the rotational speed of the exhaust fan.
  • determining a wind pressure situation at an air outlet of the exhaust fan according to the corrected rotational speed and the set value for the output power and adjusting the set value for the output power according to the wind pressure situation further includes: controlling the gas water heater to shut off, when it is determined that the wind pressure situation is an extreme high wind pressure situation or the corrected rotational speed is higher than a rotational speed threshold.
  • the corrected rotational speed R+dn of the exhaust fan is above the third curve R3+dn (Region IV), it indicates that the wind pressure at the air outlet of the exhaust fan is too high, then it is necessary to control the gas water heater to shut off.
  • the set value for output power of the exhaust fan is PI
  • the corrected rotational speed of the exhaust fan meets a condition of R+dn ⁇ A
  • the gas water heater is controlled to shut off.
  • the corrected rotational speed of the exhaust fan is higher than a predetermined rotational speed threshold (upper limit for the rotational speed)
  • the gas water heater is controlled to shut off. In this way, the safety of the gas water heater is guaranteed.
  • the above safety control method further includes: obtaining a water supply quantity of the gas water heater, a set temperature for output water of the gas water heater and a cold water temperature of the gas water heater; calculating a total heat required by the gas water heater according to the water supply quantity, the set temperature for the output water and the cold water temperature, and obtaining a current control instruction and the set value for the output power according to the total heat; and performing a gas burning control by controlling a proportional valve in a gas unit of the gas water heater according to the current control instruction.
  • the control quantity of the proportional valve in the gas unit and the set value for output power to be configured as an initial set value for output power are obtained according to the total heat required by the gas water heater, and the reference value of the rotational speed and the actual value of the rotational speed are obtained according to the set value for output power.
  • the proportional valve is controlled according to the obtained control quantity so as to control the gas unit, and the exhaust fan is controlled according to the set value for output power.
  • the rotational speed of the exhaust fan is detected in real time, and is determined.
  • the gas water heater is controlled to shut off.
  • the control quantity of the proportional valve and the set value for output power are obtained again, and the gas water heater is controlled based on the above-mentioned procedure.
  • the safety control method for a gas water heater firstly the set value for output power of the exhaust fan is obtained and the reference value of the rotational speed corresponding to the set value for output power is obtained, the actual value of the rotational speed is obtained according to the set value for the output power of the exhaust fan, and the difference between the actual value of the rotational speed and the reference value of the rotational speed is calculated.
  • the rotational speed of the exhaust fan is detected, the rotational speed of the exhaust fan is corrected according to the difference between the actual value of the rotational speed and the reference value of the rotational speed, the wind pressure situation at the air outlet of the exhaust fan is determined according to the corrected rotational speed and the set value for the output power of the exhaust fan, and further the set value for the output power of the exhaust fan is adjusted according to the wind pressure situation, such that the adjustment of air volume of the exhaust fan may be realized, and it is guaranteed that a good combustion condition may be achieved after mixing the introduced gas and air during the operation of the gas water heater, thus ensuring the safe and reliable operation of the gas water heater.
  • the adjustment of the set value for the output power directly based on the corrected rotational speed is an active control, which not only has a fast response speed but also provides more accurate air volume when compared to the passive control on the rotational speed of the exhaust fan, such that the control accuracy is improved.
  • a gas water heater according to embodiments of the present disclosure, which includes the above safety control system for a gas water heater.
  • the a gas water heater may correct the rotational speed of the exhaust fan according to the difference between the actual value of the rotational speed and the reference value of the rotational speed, determine the wind pressure situation at the air outlet of the exhaust fan according to the corrected rotational speed and the set value for the output power and adjust the set value for the output power according to the wind pressure situation, such that the adjustment of air volume of the exhaust fan may be realized, and it is guaranteed that a good combustion condition may be achieved after mixing the introduced gas and air during the operation of the gas water heater, thus ensuring the safe and reliable operation of the gas water heater.
  • the adjustment of the set value for the output power directly based on the rotational speed difference is an active control, which not only has a fast response speed but also provides more accurate air volume when compared to the passive control on the rotational speed of the exhaust fan, such that the control accuracy is improved.
  • first and second are used herein for purposes of description and are not intended to indicate or imply relative importance or significance or to imply the number of indicated technical features.
  • the feature defined with “first” and “second” may comprise one or more of this feature.
  • a plurality of' means two or more than two, unless specified otherwise.
  • the terms “mounted,” “connected,” “coupled,” “fixed” and the like are used broadly, and may be, for example, fixed connections, detachable connections, or integral connections; may also be mechanical or electrical connections; may also be direct connections or indirect connections via intervening structures; may also be inner communications of two elements, which can be understood by those skilled in the art according to specific situations.
  • a structure in which a first feature is "on" or “below” a second feature may include an embodiment in which the first feature is in direct contact with the second feature, and may also include an embodiment in which the first feature and the second feature are not in direct contact with each other, but are contacted via an additional feature formed therebetween.
  • a first feature "on,” “above,” or “on top of' a second feature may include an embodiment in which the first feature is right or obliquely “on,” “above,” or “on top of' the second feature, or just means that the first feature is at a height higher than that of the second feature; while a first feature "below,” “under,” or “on bottom of' a second feature may include an embodiment in which the first feature is right or obliquely “below,” “under,” or “on bottom of' the second feature, or just means that the first feature is at a height lower than that of the second feature.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Regulation And Control Of Combustion (AREA)

Claims (10)

  1. Procédé de commande de sécurité pour un chauffe-eau au gaz, comprenant :
    l'obtention (S1) d'une valeur de consigne pour une puissance de sortie d'un ventilateur d'échappement (10) dans le chauffe-eau au gaz ;
    l'obtention (S2) d'une valeur réelle d'une vitesse de rotation du ventilateur d'échappement (10) et d'une valeur de référence de la vitesse de rotation selon la valeur de consigne pour la puissance de sortie, et le calcul d'une différence entre la valeur réelle de la vitesse de rotation et la valeur de référence de la vitesse de rotation ;
    la détection (S3) de la vitesse de rotation du ventilateur d'échappement (10) ; et
    la correction (S4) de la vitesse de rotation selon la différence, la détermination d'une situation de pression de vent au niveau d'une évacuation d'air du ventilateur d'échappement (10) selon la vitesse de rotation corrigée et la valeur de consigne pour la puissance de sortie, et le réglage de la valeur de consigne pour la puissance de sortie selon la situation de pression de vent, dans lequel la correction de la vitesse de rotation selon la différence comprend
    la commande de la vitesse de rotation corrigée pour qu'elle soit égale à une somme de la vitesse de rotation du ventilateur d'échappement (10) et de la différence ;
    le procédé de commande de sécurité étant caractérisé en ce que la détermination de la situation de pression de vent au niveau d'une évacuation d'air du ventilateur d'échappement (10) selon la vitesse de rotation corrigée et la valeur de consigne pour la puissance de sortie et le réglage de la valeur de consigne pour la puissance de sortie selon la situation de pression de vent comprennent :
    la commande de la valeur de consigne pour la puissance de sortie pour qu'elle soit réduite d'une première valeur prédéterminée lorsqu'il est déterminé que la situation de pression de vent est une situation de pression de vent faible ;
    la commande de la valeur de consigne pour la puissance de sortie pour qu'elle reste inchangée lorsqu'il est déterminé que la situation de pression de vent est une situation de pression de vent moyenne ; et
    la commande de la valeur de consigne pour la puissance de sortie pour qu'elle soit augmentée d'une seconde valeur prédéterminée lorsqu'il est déterminé que la situation de pression de vent est une situation de pression de vent élevée.
  2. Procédé de commande de sécurité selon la revendication 1, dans lequel la détermination d'une situation de pression de vent au niveau d'une évacuation d'air du ventilateur d'échappement (10) selon la vitesse de rotation corrigée et la valeur de consigne pour la puissance de sortie et le réglage de la valeur de consigne pour la puissance de sortie selon la situation de pression de vent comprennent en outre :
    la commande du chauffe-eau au gaz pour sa fermeture, lorsqu'il est déterminé que la situation de pression de vent est une situation de pression de vent élevée extrême ou que la vitesse de rotation corrigée est supérieure à un seuil de vitesse de rotation.
  3. Procédé de commande de sécurité selon la revendication 1, comprenant en outre :
    l'obtention d'une quantité d'alimentation en eau du chauffe-eau au gaz, d'une température de consigne pour la sortie d'eau du chauffe-eau au gaz et d'une température d'eau froide du chauffe-eau au gaz ; et
    le calcul d'une chaleur totale requise par le chauffe-eau au gaz selon la quantité d'alimentation en eau, la température de consigne pour la sortie d'eau et la température d'eau froide, et l'obtention d'une instruction de commande de courant et d'une valeur de consigne initiale pour la puissance de sortie selon la chaleur totale.
  4. Procédé de commande de sécurité selon la revendication 3, comprenant en outre :
    la réalisation d'une commande de combustion de gaz par la commande d'une soupape proportionnelle dans une unité de gaz du chauffe-eau au gaz selon l'instruction de commande de courant.
  5. Système de commande de sécurité pour un chauffe-eau au gaz, comprenant :
    un ventilateur d'échappement (10), configuré pour l'échappement d'un gaz résiduaire généré lorsque le chauffe-eau au gaz réalise une combustion de gaz ;
    une unité de détection de vitesse de rotation (20), configurée pour détecter une vitesse de rotation du ventilateur d'échappement (10) ;
    une unité d'obtention de puissance (30), configurée pour obtenir une valeur de consigne pour une puissance de sortie du ventilateur d'échappement (10) ;
    une unité d'obtention de différence de vitesse de rotation (40), configurée pour obtenir une valeur réelle de la vitesse de rotation et une valeur de référence de la vitesse de rotation selon la valeur de consigne pour la puissance de sortie du ventilateur d'échappement (10), et pour calculer une différence entre la valeur réelle de la vitesse de rotation et la valeur de référence de la vitesse de rotation ; et
    une unité de commande d'échappement (50), connectée au ventilateur d'échappement (10), à l'unité de détection de vitesse de rotation (20) et à l'unité d'obtention de puissance (30) respectivement, et comprenant des moyens de traitement configurés pour réaliser le procédé selon la revendication 1.
  6. Système de commande de sécurité selon la revendication 5, comprenant en outre une unité de commande de système (60) configurée pour réaliser une communication mutuelle avec l'unité de commande d'échappement (50), dans lequel
    l'unité de commande d'échappement (50) est configurée pour envoyer un signal de fermeture à l'unité de commande de système (60) de sorte que l'unité de commande de système (60) commande le chauffe-eau au gaz pour sa fermeture selon le signal de fermeture, lorsque l'unité de commande d'échappement (50) détermine que la situation de pression de vent est une situation de pression de vent élevée extrême ou que la vitesse de rotation corrigée est supérieure à un seuil de vitesse de rotation.
  7. Système de commande de sécurité selon la revendication 6, comprenant en outre :
    une unité d'alimentation en eau (70), connectée à l'unité de commande de système (60) ; et
    une unité d'obtention de température, connectée à l'unité de commande de système (60), et configurée pour obtenir une température de consigne pour la sortie d'eau du chauffe-eau au gaz et une température d'eau froide du chauffe-eau au gaz,
    dans lequel, l'unité de commande de système (60) est configurée pour calculer une chaleur totale requise par le chauffe-eau au gaz selon une quantité d'alimentation en eau de l'unité d'alimentation en eau (70), la température de consigne pour la sortie d'eau et la température d'eau froide, et pour obtenir une instruction de commande de courant et une valeur de consigne initiale pour la puissance de sortie selon la chaleur totale.
  8. Système de commande de sécurité selon la revendication 7, comprenant en outre :
    une unité de gaz (80), connectée à l'unité de commande de système (60) et dotée d'une soupape proportionnelle, dans lequel
    l'unité de commande de système (60) est configurée pour commander l'unité de gaz par la commande de la soupape proportionnelle selon l'instruction de commande de courant.
  9. Système de commande de sécurité selon la revendication 5, dans lequel le chauffe-eau au gaz est un chauffe-eau au gaz du type à échappement forcé.
  10. Chauffe-eau au gaz, comprenant le système de commande de sécurité pour un chauffe-eau au gaz selon l'une quelconque des revendications 5-9.
EP16869367.9A 2016-08-31 2016-12-30 Chauffe-eau au gaz et système et procédé de commande de sécurité s'y rapportant Active EP3309473B1 (fr)

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CN201610795349.8A CN106403300B (zh) 2016-08-31 2016-08-31 燃气热水器及其安全控制***和方法
PCT/CN2016/113788 WO2018040446A1 (fr) 2016-08-31 2016-12-30 Chauffe-eau au gaz et système et procédé de commande de sécurité s'y rapportant

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Publication number Priority date Publication date Assignee Title
CN109028593B (zh) * 2018-06-01 2020-09-25 广东万和热能科技有限公司 燃气采暖热水炉空燃比控制方法、装置及燃气采暖热水炉
CN109612115B (zh) * 2018-12-17 2020-12-22 成都前锋电子有限责任公司 燃气热水器和壁挂炉自适应烟道压力变化的控制方法
CN111928485B (zh) * 2019-05-13 2021-12-10 华帝股份有限公司 一种燃气热水器及其负载调整方法
CN114183770A (zh) * 2020-09-14 2022-03-15 中国石油天然气股份有限公司 锅炉风量控制方法、***和装置

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3320933B2 (ja) * 1994-11-25 2002-09-03 パロマ工業株式会社 燃焼装置
JP3501551B2 (ja) * 1995-03-23 2004-03-02 パロマ工業株式会社 燃焼機器の制御装置
JPH09261988A (ja) * 1996-03-26 1997-10-03 Noritz Corp 直流モータ制御装置
JP3465518B2 (ja) * 1997-01-31 2003-11-10 株式会社ノーリツ ファンモータ制御装置
JP4354374B2 (ja) * 2004-09-21 2009-10-28 リンナイ株式会社 燃焼装置
KR20090093407A (ko) * 2008-02-29 2009-09-02 린나이코리아 주식회사 보일러의 연소제어시 안전제어장치 및 그 방법
CN101303161B (zh) * 2008-06-12 2010-07-21 中山华帝燃具股份有限公司 智能化燃气热水器的控制方法
US8498523B2 (en) * 2009-02-03 2013-07-30 Intellihot, Inc. Apparatus and control method for a hybrid tankless water heater
CN102080878B (zh) * 2009-11-27 2013-05-08 海尔集团公司 燃气设备的风机控制方法及装置
CN201561578U (zh) * 2009-12-08 2010-08-25 海尔集团公司 燃气设备的风机控制装置
CN102192808B (zh) * 2010-03-19 2015-04-15 海尔集团公司 一种风压检测装置和检测方法
JP5718747B2 (ja) * 2011-07-06 2015-05-13 リンナイ株式会社 燃焼装置
CN202158666U (zh) * 2011-07-07 2012-03-07 海尔集团公司 燃气热水器内压反馈调节***
CN202813802U (zh) * 2012-10-08 2013-03-20 樱花卫厨（中国）股份有限公司 燃气热水器用智能风压***
CN103727676B (zh) * 2013-12-02 2017-01-18 芜湖美的厨卫电器制造有限公司 燃气热水器

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

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CN106403300A (zh) 2017-02-15
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WO2018040446A1 (fr) 2018-03-08
EP3309473A1 (fr) 2018-04-18

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