WO2023279886A1 - 用于热泵设备除霜的方法、装置和热水机组 - Google Patents

用于热泵设备除霜的方法、装置和热水机组 Download PDF

Info

Publication number
WO2023279886A1
WO2023279886A1 PCT/CN2022/095216 CN2022095216W WO2023279886A1 WO 2023279886 A1 WO2023279886 A1 WO 2023279886A1 CN 2022095216 W CN2022095216 W CN 2022095216W WO 2023279886 A1 WO2023279886 A1 WO 2023279886A1
Authority
WO
WIPO (PCT)
Prior art keywords
compressor
heat exchanger
temperature
defrosting
supply valve
Prior art date
Application number
PCT/CN2022/095216
Other languages
English (en)
French (fr)
Inventor
张嘉诚
刘峻杉
刘汇泉
李旭
夏鹏
Original Assignee
青岛海尔空调电子有限公司
青岛海尔空调器有限总公司
海尔智家股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 青岛海尔空调电子有限公司, 青岛海尔空调器有限总公司, 海尔智家股份有限公司 filed Critical 青岛海尔空调电子有限公司
Publication of WO2023279886A1 publication Critical patent/WO2023279886A1/zh

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
    • F25B47/02—Defrosting cycles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2347/00—Details for preventing or removing deposits or corrosion
    • F25B2347/02—Details of defrosting cycles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Definitions

  • the present application relates to the technical field of heat pump equipment, for example, to a method, device and hot water unit for defrosting heat pump equipment.
  • the outdoor ambient temperature is 2°C
  • users use the hot water unit for the longest time.
  • the external unit heat exchanger of the hot water unit is prone to frost. Reduce the heating efficiency of the hot water unit.
  • the external unit heat exchanger of the hot water unit when the external unit heat exchanger is frosted, the external unit heat exchanger of the hot water unit is controlled to enter the heating mode to realize defrosting, and then the hot water unit is controlled to operate normally, that is Control the internal unit heat exchanger of the hot water unit to operate in the heating mode, and control the external unit heat exchanger of the hot water unit to operate in the cooling mode.
  • the external unit heat exchanger of the hot water unit is prone to frost. If it is necessary to defrost the external unit heat exchanger, control the external unit heat exchanger from cooling mode to heating mode. After the defrosting is completed, the heat exchanger of the external unit is controlled to enter the cooling mode, and the four-way valve needs to be switched frequently, which reduces the service life of the four-way valve.
  • the embodiments of the present disclosure provide a method and device for defrosting heat pump equipment and a hot water unit to solve the problem of frequent switching of the four-way valve when the heat exchanger of the external unit is frequently frosted, resulting in a shorter service life of the four-way valve. Low technical issues.
  • the heat pump equipment includes a compressor, and the air intake port and the exhaust port of the compressor are communicated through an air supply valve, and the method for controlling the defrosting of the heat pump equipment includes: When the heat exchanger is in cooling mode, obtain the temperature of the external unit heat exchanger; when the temperature of the external unit heat exchanger is less than or equal to the set frosting temperature threshold, open the air supply valve; When the temperature of the heat exchanger of the external unit is greater than or equal to the set defrosting temperature threshold, the air supply valve is closed.
  • the method for defrosting the heat pump equipment further includes: obtaining the frequency of the compressor, and determining a first compensation amount positively related to the frequency of the compressor; according to the first compensation
  • the original control amount of the compressor is compensated to increase the operating frequency of the compressor; the compressor is controlled according to the compensated original control amount.
  • the method for defrosting the heat pump equipment further includes: obtaining the frequency of the compressor; obtaining the integral of the frequency of the compressor to the time period from the moment when the air supply valve is opened to the current moment; determining The second compensation amount positively related to the integral; according to the second compensation amount, the original control amount of the compressor is compensated to increase the operating frequency of the compressor; according to the compensated original control amount, the said compressor.
  • compensating the original control amount of the compressor according to the first compensation amount includes: determining the sum of the first compensation amount and the original control amount as the compensated original control amount quantity.
  • compensating the original control amount of the compressor according to the second compensation amount includes: determining the sum of the first compensation amount and the original control amount as the compensated original control amount quantity.
  • the original control amount is determined in the following manner: obtain the current ambient temperature of the environment where the internal unit is located, and set the ambient temperature; obtain the temperature difference between the set ambient temperature and the current ambient temperature, The original control amount corresponding to the temperature difference is determined.
  • controlling the compressor according to the compensated original control amount includes: lowering the set ambient temperature of the environment where the internal unit is located when the compensated original control amount is greater than or equal to a set maximum threshold.
  • the method for defrosting heat pump equipment further includes: after opening the air supply valve, if the temperature of the external unit heat exchanger has not reached the set defrosting temperature threshold within a second set period of time, , the air supply valve is closed, the heat exchanger of the indoor unit is controlled to enter the cooling mode, and the heat exchanger of the external unit is controlled to enter the heating mode.
  • the heat pump equipment includes a compressor, and the air inlet and exhaust port of the compressor are communicated through an air supply valve
  • the device for defrosting the heat pump equipment includes: a first obtaining module, a second A control module and a second control module, the first obtaining module is configured to obtain the temperature of the external heat exchanger when the external heat exchanger of the heat pump equipment is in cooling mode; the first control module is It is configured to open the supplementary air valve when the temperature of the external heat exchanger is less than or equal to the set frosting temperature threshold; the second control module is configured to open the air supply valve when the temperature of the external heat exchanger is greater than Or when it is equal to the set defrosting temperature threshold, close the air supply valve; wherein, the set defrosting temperature threshold is higher than the set defrosting temperature threshold.
  • the device for defrosting includes a processor and a memory storing program instructions, and the processor is configured to execute the defrosting method provided in the foregoing embodiments when executing the program instructions. method.
  • the hot water unit includes the device for defrosting provided in the foregoing embodiments.
  • the method, device, and hot water unit for defrosting heat pump equipment provided by the embodiments of the present disclosure can achieve the following technical effects:
  • the heat exchanger of the external unit When the temperature of the heat exchanger of the external unit is less than or equal to the set frosting temperature threshold, the heat exchanger of the external unit is prone to frost or has already formed frost.
  • the air valve can increase the evaporation pressure of the external unit heat exchanger, and then increase the evaporation temperature of the external unit heat exchanger, which can increase the temperature of the external unit heat exchanger.
  • the temperature of the external unit heat exchanger is greater than or equal to the set defrost Under the temperature threshold, the heat exchanger of the external unit is not easy to frost or defrost the heat exchanger of the external unit.
  • the air supply valve between the air inlet and the air outlet of the compressor can be closed. In the above process, without switching the four-way valve, frosting prevention or defrosting can be realized, which prolongs the service life of the four-way valve.
  • FIG. 1 is a schematic structural diagram of a heat pump device provided by an embodiment of the present disclosure
  • Fig. 2 is a schematic diagram of a method for defrosting a heat pump device provided by an embodiment of the present disclosure
  • Fig. 3 is a schematic diagram of a method for defrosting a heat pump device provided by an embodiment of the present disclosure
  • Fig. 4 is a schematic diagram of a method for defrosting a heat pump device provided by an embodiment of the present disclosure
  • Fig. 5 is a schematic diagram of a method for defrosting a heat pump device provided by an embodiment of the present disclosure
  • Fig. 6 is a schematic diagram of a method for defrosting a heat pump device provided by an embodiment of the present disclosure
  • Fig. 7 is a schematic diagram of a device for defrosting a heat pump device provided by an embodiment of the present disclosure
  • Fig. 8 is a schematic diagram of a device for defrosting a heat pump device provided by an embodiment of the present disclosure.
  • A/B means: A or B.
  • a and/or B means: A or B, or, A and B, these three relationships.
  • Fig. 1 is a schematic structural diagram of a heat pump device provided by an embodiment of the present disclosure.
  • the heat pump equipment includes a compressor 11, a four-way valve 12, an internal heat exchanger 13, an external heat exchanger 14, a throttle valve 15 and an air supply valve 16, wherein the inlet of the compressor 11
  • the air port and the exhaust port are connected through the air supply valve 16, the air intake port and the exhaust port of the compressor 11 are connected to the two ends of the four-way valve 12, and the other two ends of the four-way valve 12 are connected to the internal machine heat exchanger 13 respectively.
  • One end of the external machine heat exchanger 14 is connected, the other end of the internal machine heat exchanger 13 is connected with one end of the throttle valve 15, and the other end of the throttle valve 15 is connected with the other end of the external machine heat exchanger 14.
  • the embodiment of the present disclosure only illustrates the position of the air supply valve 16.
  • one end of the air supply valve 16 can also be connected to the pipeline between the internal machine heat exchanger 13 and the four-way valve 12.
  • the air supply valve The other end of 16 communicates with the pipeline between the external machine heat exchanger 14 and the four-way valve 12 (not shown in the figure).
  • one end of the air supply valve 16 is connected to the air inlet of the compressor 11, and the other end of the air supply valve 14 is connected to the air inlet of the internal heat exchanger 13 (the internal heat exchanger 13 is in heating mode). (not shown in the figure).
  • one end of the air supply valve 16 is connected with the exhaust port of the compressor 11, and the other end of the air supply valve 14 is connected with the air outlet of the external machine heat exchanger 14 (the external machine heat exchanger 14 is in a mode like this) (Fig. not shown).
  • Fig. 2 is a schematic diagram of a method for defrosting a heat pump device provided by an embodiment of the present disclosure.
  • the heat pump device in the embodiment of the present disclosure refers to a device that uses a compressor for cooling or heating, such as a hot water unit, an air conditioner and other equipment, the heat pump equipment includes a compressor, a four-way valve, an internal heat exchanger, an external heat exchanger, a throttle valve and an air supply valve, and the air inlet and exhaust port of the compressor are connected through the air supply valve.
  • the method for defrosting a heat pump device provided by an embodiment of the present disclosure may be executed by a controller of the heat pump device.
  • the method for defrosting heat pump equipment provided by the embodiments of the present disclosure includes:
  • the heat exchanger of the external unit is in the cooling mode, which means that the refrigerant inside the heat exchanger of the external unit is in a state of evaporation, and at this time, the heat exchanger of the external unit absorbs heat from the external environment.
  • the temperature of the external heat exchanger can be obtained through the temperature sensor arranged on the external heat exchanger.
  • the air supply valve here can be a solenoid valve, and the solenoid valve can be opened or closed by controlling the on-off state of the solenoid valve.
  • the air supply valve After detecting that the temperature of the heat exchanger of the external unit is less than or equal to the set frosting temperature threshold, the air supply valve can be opened immediately.
  • the air supply valve can also be opened when the temperature of the heat exchanger of the external unit is lower than the set frosting temperature threshold within the first set time period.
  • the first set duration may be any one of 15 min to 60 min, for example, the first set duration may be 15 min, 30 min, 45 min or 60 min.
  • the frosting threshold can be set at any temperature between -5°C and 5°C.
  • the frosting threshold can be set at -5°C, -4°C, -3°C, -2°C, -1°C, 0°C, 1°C, 2°C, 3°C, 4°C or 5°C.
  • the defrosting threshold can be set at 10°C or 15°C.
  • the heat exchanger of the external unit When the temperature of the heat exchanger of the external unit is less than or equal to the set frosting temperature threshold, the heat exchanger of the external unit is prone to frost or has already formed frost.
  • the air valve can increase the evaporation pressure of the external unit heat exchanger, and then increase the evaporation temperature of the external unit heat exchanger, which can increase the temperature of the external unit heat exchanger.
  • the temperature of the external unit heat exchanger is greater than or equal to the set defrost Under the temperature threshold, the heat exchanger of the external unit is not easy to frost or defrost the heat exchanger of the external unit.
  • the air supply valve between the air inlet and the air outlet of the compressor can be closed. In the above process, without switching the four-way valve, frosting prevention or defrosting can be realized, which prolongs the service life of the four-way valve.
  • Fig. 3 is a schematic diagram of a method for defrosting a heat pump device provided by an embodiment of the present disclosure.
  • the heat pump equipment in the embodiments of the present disclosure refers to equipment that uses compressors for cooling or heating, such as hot water units, air conditioners, etc.
  • the heat pump equipment includes compressors, four-way valves, internal heat exchangers, external A heat exchanger, a throttle valve and an air supply valve, and the air inlet and exhaust port of the compressor are communicated through the air supply valve.
  • the method for defrosting a heat pump device provided by an embodiment of the present disclosure may be executed by a controller of the heat pump device.
  • the methods for defrosting heat pump equipment include:
  • the higher the frequency of the compressor the more refrigerant flows to the air supply valve, and the greater the pressure of the refrigerant inside the internal unit heat exchanger decreases. Determining the first compensation amount that is positively correlated with the operating frequency of the compressor is beneficial to increasing the pressure of the refrigerant inside the heat exchanger of the internal unit.
  • the correspondence between the compressor and the first compensation amount can be pre-stored in the database, and after the frequency of the compressor is obtained, the first compensation amount positively correlated with the frequency of the compressor can be queried in the database.
  • the structural parameters of a specific type of heat pump equipment are known, and corresponding to a specific type of heat pump equipment, a test can be carried out before it leaves the factory to test whether the air supply valve is switched from closed to open.
  • the corresponding relationship between the frequency and the reduction value of the refrigerant pressure of the internal heat exchanger and then further determine the corresponding relationship between the refrigerant pressure and the reduction value and the frequency increase value of the compressor, and finally determine the frequency increase value of the compressor and the first Corresponding relationship of compensation amount.
  • the first compensation amount is used to compensate for the decrease in the condensing pressure of the internal unit heat exchanger caused by the diversion effect of the air supplement valve.
  • Compensating the original control amount of the compressor according to the first compensation amount may include: determining the sum of the original control amounts of the first compensation amount as the compensated original control amount.
  • compensating the original control amount of the compressor according to the first compensation amount may include: determining the product of the first compensation amount and the original control amount as the compensated original control amount.
  • the original control quantity is determined in the following manner: obtain the current ambient temperature of the environment where the internal unit is located, and set the ambient temperature; obtain the temperature difference between the set ambient temperature and the current ambient temperature, and determine The corresponding original control amount.
  • the existing controllers of air conditioners such as proportional-integral-differential (Proportion Integral Differential, PID) controllers, can determine the original control amount corresponding to the temperature difference for controlling the frequency of the compressor.
  • the original control amount Corresponds to the frequency of the compressor.
  • the current ambient temperature and the set ambient temperature of the environment where the internal unit is located may refer to the current temperature and the set temperature of the water environment.
  • the current ambient temperature and the set ambient temperature of the environment where the indoor unit is located may refer to the current temperature and the set temperature of the indoor environment.
  • the current air outlet temperature of the indoor unit may also be used to represent the current ambient temperature
  • the set air outlet temperature of the indoor unit may be used to represent the set ambient temperature
  • part of the refrigerant flows to the heat exchanger of the external unit, resulting in a decrease in the condensation pressure inside the heat exchanger of the internal unit.
  • the condensation temperature of the heat exchanger of the internal unit will be reduced. Lower the temperature of the heat exchanger of the internal unit to further reduce the temperature of the environment where the internal unit is located.
  • the temperature of the environment where the internal unit is located is the water temperature; in an air conditioner, the temperature of the environment where the internal unit is located is the indoor environment temperature until the temperature sensor in the environment where the internal unit is located detects a change in temperature, then adjust the frequency of the compressor to increase the temperature of the environment where the internal unit is located. It takes a long time for the temperature of the environment to change. After the temperature of the environment where the internal unit is located changes, the temperature of the environment where the internal unit is located is controlled. As a result, it takes a long time to stabilize the position of the internal unit after the air supply valve is opened. the temperature of the environment.
  • the first compensation amount positively related to the frequency of the compressor is immediately compensated to the original control amount of the compressor, and the operating frequency of the compressor is increased in advance, so that the pressure of the refrigerant inside the heat exchanger of the internal unit can be reduced.
  • the reduction is less or not lowered, so that the temperature of the environment where the internal unit is located can be reduced less or not, shortening the stable time of the temperature of the environment where the internal unit is located, and improving user experience.
  • controlling the compressor according to the compensated original control amount may include: directly controlling the compressor with the compensated original control amount when the compensated original control amount is less than a set maximum threshold; wherein, setting The maximum threshold corresponds to the set maximum frequency threshold of the compressor, and the compensated original control amount corresponds to the frequency of the compressor.
  • the maximum threshold can be set to control the compressor.
  • controlling the compressor according to the compensated original control amount may include: lowering the set ambient temperature of the environment where the internal unit is located when the compensated original control amount is greater than or equal to the set maximum threshold; wherein, setting the maximum The threshold corresponds to the set maximum frequency threshold of the compressor, and the compensated original control amount corresponds to the frequency of the compressor.
  • reducing the set ambient temperature of the environment where the internal unit is located may include: determining 3/4 of the original set ambient temperature as the new set ambient temperature, or setting 2/3 of the original set ambient temperature For the newly set ambient temperature, or, 1/2 of the original set ambient temperature is determined as the newly set ambient temperature, or, 1/3 of the original set ambient temperature is determined as the new set ambient temperature.
  • the frequency of the compressor will not run at the maximum frequency threshold in real time, which can avoid The compressor runs at high load for a long time, which improves the service life of the compressor.
  • Fig. 4 is a schematic diagram of a method for defrosting a heat pump device provided by an embodiment of the present disclosure.
  • the heat pump equipment in the embodiments of the present disclosure refers to equipment that uses compressors for cooling or heating, such as hot water units, air conditioners, etc.
  • the heat pump equipment includes compressors, four-way valves, internal heat exchangers, external A heat exchanger, a throttle valve and an air supply valve, and the air inlet and exhaust port of the compressor are communicated through the air supply valve.
  • the method for defrosting a heat pump device provided by an embodiment of the present disclosure may be executed by a controller of the heat pump device.
  • the methods for defrosting heat pump equipment include:
  • the positive correlation between the integral and the second compensation amount can be pre-stored in the database, and after the integral is obtained, the second compensation amount positively correlated with the integral can be determined in the database.
  • the structural parameters of a specific type of heat pump equipment are known.
  • a test can be carried out before leaving the factory to test the integral and compressor internal pressure drop after the air supply valve is opened. value, further determine the corresponding relationship between the compressor internal pressure drop value and the compressor frequency increase value, and finally determine the corresponding relationship between the compressor frequency increase value and the second compensation amount.
  • the second compensation amount is used to compensate for the decrease in the condensation pressure of the internal heat exchanger caused by the deterioration of the evaporation efficiency of the external heat exchanger.
  • Compensating the original control amount of the compressor according to the second compensation amount may include: determining the sum of the first compensation amount and the original control amount as the compensated original control amount.
  • compensating the original control amount of the compressor according to the second compensation amount may include: determining the product of the second compensation amount and the original control amount as the compensated original control amount.
  • the air supply valve After the air supply valve is opened, the evaporation pressure of the heat exchanger of the external unit increases, and the evaporation temperature of the heat exchanger of the external unit increases, which reduces the evaporation efficiency in the heat exchanger of the external unit.
  • the amount of liquid refrigerant increase, the amount of gaseous refrigerant decreases, resulting in a decrease in the condensation pressure inside the heat exchanger of the internal unit, which eventually leads to a decrease in the temperature of the heat exchanger of the internal unit, and a decrease in the temperature of the environment where the internal unit is located.
  • the heat pump equipment A controller such as a PID controller
  • the heat pump equipment A controller outputs a control value corresponding to the temperature difference to adjust the operating frequency of the compressor to Increase the operating frequency of the compressor, increase the temperature of the heat exchanger of the internal unit, and increase the temperature of the environment where the internal unit is located. This will cause it to take a long time to stabilize the temperature of the environment where the indoor unit is located after opening the air supply valve.
  • the frequency of the compressor corresponds to the reduction value of the evaporation efficiency in the heat exchanger of the external unit, and the frequency of the compressor corresponds to the moment when the air supply valve is opened
  • the integral of the time to the current moment corresponds to the decrease of the refrigerant pressure in the internal system of the heat pump equipment, and then determines a second compensation amount corresponding to the integral, and uses the second compensation amount to compensate the frequency of the compressor.
  • the second compensation amount is used to offset the temperature drop trend of the heat exchanger of the internal unit caused by opening the air supply valve, so that after opening the air supply valve, the temperature of the environment where the indoor unit is located can be increased The speed decreases the time required to stabilize the temperature of the environment where the internal unit is located.
  • Fig. 5 is a schematic diagram of a method for defrosting a heat pump device provided by an embodiment of the present disclosure.
  • the heat pump equipment in the embodiments of the present disclosure refers to equipment that uses compressors for cooling or heating, such as hot water units, air conditioners, etc.
  • the heat pump equipment includes compressors, four-way valves, internal heat exchangers, external A heat exchanger, a throttle valve and an air supply valve, and the air inlet and exhaust port of the compressor are communicated through the air supply valve.
  • the method for defrosting a heat pump device provided by an embodiment of the present disclosure may be executed by a controller of the heat pump device.
  • the method for defrosting the heat pump equipment includes:
  • the sum of the first compensation amount, the second compensation amount and the original control amount of the compressor may be determined as the original control amount of the compressor after compensation.
  • the operating frequency of the compressor is compensated at two angles with the first compensation amount and the second compensation amount, so as to improve the temperature stability of the environment where the internal unit is located.
  • Fig. 6 is a schematic diagram of a method for defrosting a heat pump device provided by an embodiment of the present disclosure.
  • the heat pump equipment in the embodiments of the present disclosure refers to equipment that uses compressors for cooling or heating, such as hot water units, air conditioners, etc.
  • the heat pump equipment includes compressors, four-way valves, internal heat exchangers, external A heat exchanger, a throttle valve and an air supply valve, and the air inlet and exhaust port of the compressor are communicated through the air supply valve.
  • the method for defrosting a heat pump device provided by an embodiment of the present disclosure may be executed by a controller of the heat pump device.
  • the method for defrosting the heat pump equipment includes:
  • the second set time length may be any time length in 5-10 min, for example, the second set time length may be 5 min, 6 min, 7 min, 8 min, 9 min or 10 min.
  • the heat exchanger of the external unit can be switched to the heating mode to achieve effective defrosting when the defrosting cannot be effectively performed only through the air supply valve.
  • Fig. 7 is a schematic diagram of a device for defrosting a heat pump device provided by an embodiment of the present disclosure.
  • the heat pump equipment includes a compressor, a four-way valve, an internal heat exchanger, an external heat exchanger, a throttle valve and an air supply valve, and the compressor inlet and exhaust port are connected through the air supply valve.
  • the device for defrosting heat pump equipment includes a first obtaining module 71 , a first control module 72 and a second control module 73 , wherein,
  • the first obtaining module 71 is configured to obtain the temperature of the external heat exchanger of the heat pump equipment under the condition that the external heat exchanger is in cooling mode;
  • the first control module 72 is configured to open the supplementary air valve when the temperature of the heat exchanger of the external unit is less than or equal to the set frosting temperature threshold;
  • the second control module 73 is configured to close the supplementary air valve when the temperature of the heat exchanger of the external unit is greater than or equal to the set defrosting temperature threshold.
  • the heat exchanger of the external unit When the temperature of the heat exchanger of the external unit is less than or equal to the set frosting temperature threshold, the heat exchanger of the external unit is prone to frost or has already formed frost.
  • the air valve can increase the evaporation pressure of the external unit heat exchanger, and then increase the evaporation temperature of the external unit heat exchanger, which can increase the temperature of the external unit heat exchanger.
  • the temperature of the external unit heat exchanger is greater than or equal to the set defrost Under the temperature threshold, the heat exchanger of the external unit is not easy to frost or defrost the heat exchanger of the external unit.
  • the air supply valve between the air inlet and the air outlet of the compressor can be closed. In the above process, without switching the four-way valve, frosting prevention or defrosting can be realized, which prolongs the service life of the four-way valve.
  • the device for heat pump defrosting further includes a second obtaining module, a first determining module, a first compensating module and a third control module, wherein the second obtaining module is configured to obtain The frequency of the compressor; the first determination module is configured to determine a first compensation amount positively related to the frequency of the compressor; the first compensation module is configured to compensate the original control amount of the compressor according to the first compensation amount to improve The operating frequency of the compressor; the third control module is configured to control the compressor according to the compensated original control amount.
  • a third obtaining module configured to obtain the compression The frequency of the machine
  • the fourth obtaining module is configured to obtain the integral of the frequency of the compressor to the time period from the moment when the gas supplement valve is opened to the current moment
  • the second determining module is configured to determine the second compensation amount positively related to the integral
  • the second compensation module is configured to compensate the original control amount of the compressor according to the second compensation amount, so as to increase the operating frequency of the compressor
  • the fourth control module is configured to control the compressor according to the compensated original control amount.
  • the first compensation module is specifically configured to determine the sum of the first compensation amount and the original control amount as the compensated original control amount.
  • the second compensation module is specifically configured to determine the sum of the first compensation amount and the original control amount as the compensated original control amount.
  • the original control quantity is determined in the following manner: obtain the current ambient temperature of the environment where the internal unit is located, and set the ambient temperature; obtain the temperature difference between the set ambient temperature and the current ambient temperature, and determine The corresponding original control amount.
  • the third control module or the fourth control module is specifically configured to: reduce the set ambient temperature of the environment where the internal unit is located when the compensated original control amount is greater than or equal to the set maximum threshold.
  • the device for defrosting heat pump equipment further includes a fifth control module, and the fifth control module is configured to, after the air supply valve is opened, if the temperature of the heat exchanger of the internal and external units has not reached within the second set time period.
  • the defrosting temperature threshold is set, the air supply valve will be closed, the heat exchanger of the indoor unit will be controlled to enter the cooling mode, and the heat exchanger of the external unit will be controlled to enter the heating mode.
  • the apparatus for defrosting heat pump equipment includes a processor and a memory storing program instructions, and the processor is configured to execute the method for defrosting heat pump equipment provided in the foregoing embodiments when executing the program instructions. .
  • Fig. 8 is a schematic diagram of a device for defrosting a heat pump device provided by an embodiment of the present disclosure. As shown in Figure 8, the device for defrosting heat pump equipment includes:
  • a processor (processor) 81 and a memory (memory) 82 may also include a communication interface (Communication Interface) 83 and a bus 84. Wherein, the processor 81 , the communication interface 83 , and the memory 82 can communicate with each other through the bus 84 .
  • the communication interface 83 can be used for information transmission.
  • the processor 81 can call the logic instructions in the memory 82 to execute the method for defrosting the heat pump device provided in the foregoing embodiments.
  • logic instructions in the memory 82 can be implemented in the form of software function units and can be stored in a computer-readable storage medium when sold or used as an independent product.
  • the memory 82 can be used to store software programs and computer-executable programs, such as program instructions/modules corresponding to the methods in the embodiments of the present disclosure.
  • the processor 81 executes the function application and data processing by running the software programs, instructions and modules stored in the memory 82, that is, implements the methods in the above method embodiments.
  • the memory 82 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and at least one application required by a function; the data storage area may store data created according to the use of the terminal device, and the like.
  • the memory 82 may include a high-speed random access memory, and may also include a non-volatile memory.
  • An embodiment of the present disclosure provides a hot water unit, including the device for defrosting a heat pump device provided in the foregoing embodiments.
  • An embodiment of the present disclosure provides a computer-readable storage medium storing computer-executable instructions, and the computer-executable instructions are configured to execute the method for defrosting a heat pump device provided in the foregoing embodiments.
  • An embodiment of the present disclosure provides a computer program product.
  • the computer program product includes a computer program stored on a computer-readable storage medium.
  • the computer program includes program instructions. When the program instructions are executed by a computer, the computer is made to execute the information provided in the foregoing embodiments. Method for defrosting heat pump equipment.
  • the above-mentioned computer-readable storage medium may be a transitory computer-readable storage medium, or a non-transitory computer-readable storage medium.
  • the technical solutions of the embodiments of the present disclosure can be embodied in the form of software products, which are stored in a storage medium and include one or more instructions to enable a computer device (which may be a personal computer, a server, or a network equipment, etc.) to execute all or part of the steps of the methods in the embodiments of the present disclosure.
  • the aforementioned storage medium can be a non-transitory storage medium, including: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), magnetic disk or optical disk, etc.
  • the term “comprise” and its variants “comprises” and/or comprising (comprising) etc. refer to stated features, integers, steps, operations, elements, and/or The presence of a component does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and/or groupings of these.
  • an element qualified by the statement “comprising a " does not preclude the presence of additional identical elements in the process, method or apparatus comprising the element.
  • what each embodiment focuses on may be the difference from other embodiments, and the same and similar parts of the various embodiments may refer to each other.
  • the relevant part can refer to the description of the method part.
  • the disclosed methods and products can be implemented in other ways.
  • the device embodiments described above are only illustrative.
  • the division of units may only be a logical function division.
  • multiple units or components may be combined or may be Integrate into another system, or some features may be ignored, or not implemented.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical, mechanical or other forms.
  • a unit described as a separate component may or may not be physically separated, and a component displayed as a unit may or may not be a physical unit, that is, it may be located in one place, or may be distributed to multiple network units. Some or all of the units can be selected according to actual needs to implement this embodiment.
  • each functional unit in the embodiments of the present disclosure may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit.
  • each block in a flowchart or block diagram may represent a module, program segment, or part of code that includes one or more executable instruction.
  • the functions noted in the block may occur out of the order noted in the figures. For example, two blocks in succession may, in fact, be executed substantially concurrently, or they may sometimes be executed in the reverse order, depending upon the functionality involved.
  • Each block in the block diagrams and/or flowcharts, and combinations of blocks in the block diagrams and/or flowcharts can be implemented by a dedicated hardware-based system that performs the specified function or action, or can be implemented by dedicated hardware implemented in combination with computer instructions.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

一种用于热泵设备除霜的方法、装置和热水机组。该用于热泵设备除霜的方法包括：压缩机（11），压缩机（11）的进气口和排气口通过补气阀门（16）连通，在热泵设备的外机换热器（14）处于制冷模式的情况下，获得外机换热器（14）的温度；在外机换热器（14）的温度小于或等于设定结霜温度阈值的情况下，打开补气阀门（16）；在外机换热器（14）的温度大于或等于设定化霜温度阈值的情况下，关闭补气阀门（16）。采用该用于热泵设备除霜的方法无需切换四通阀（12），即可实现除霜的效果，延长四通阀（12）的使用寿命。

Description

用于热泵设备除霜的方法、装置和热水机组
本申请基于申请号为202110770509.4、申请日为2021年7月7日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本申请涉及热泵设备技术领域，例如涉及一种用于热泵设备除霜的方法、装置和热水机组。
背景技术
目前，在室外环境温度为2℃的情况下，用户使用热水机组的时间最长，在该环境下，热水机组的外机换热器容易结霜，外机换热器结霜后，降低热水机组的制热效率。
在一些现有的热水机组中，当外机换热器结霜后，控制热水机组的外机换热器进入制热模式，以实现化霜，之后再控制热水机组正常运行，即控制热水机组的内机换热器运行在制热模式，控制热水机组的外机换热器运行在制冷模式。
在实现本公开实施例的过程中，发现相关技术中至少存在如下问题：
在室外环境温度为2℃的环境中，热水机组的外机换热器容易结霜，若在需要对外机换热器除霜时，控制外机换热器由制冷模式进入制热模式，在除霜结束后，再控制外机换热器进入制冷模式，则需要频繁地切换四通阀，使四通阀的使用寿命较低。
发明内容
为了对披露的实施例的一些方面有基本的理解，下面给出了简单的概括。所述概括不是泛泛评述，也不是要确定关键/重要组成元素或描绘这些实施例的保护范围，而是作为后面的详细说明的序言。
本公开实施例提供了一种用于热泵设备除霜的方法、装置和热水机组，以解决在外机换热器频繁结霜时，需要频繁切换四通阀，导致四通阀的使用寿命较低的技术问题。
在一些实施例中，热泵设备包括压缩机，所述压缩机的进气口和排气口通过补气阀门连通，用于控制热泵设备除霜的方法包括：在所述热泵设备的外机换热器处于制冷模式的情况下，获得所述外机换热器的温度；在所述外机换热器的温度小于或等于设定结霜温度阈值的情况下，打开所述补气阀门；在所述外机换热器的温度大于或等于设定化霜温度阈 值的情况下，关闭所述补气阀门。
可选地，在打开补气阀门之后，用于热泵设备除霜的方法还包括：获得压缩机的频率，确定与所述压缩机的频率正相关的第一补偿量；根据所述第一补偿量对所述压缩机的原始控制量进行补偿，以提高压缩机的运行频率；根据补偿后的原始控制量控制所述压缩机。
可选地，在打开补气阀门之后，用于热泵设备除霜的方法还包括：获得压缩机的频率；获得压缩机的频率对由打开补气阀门的时刻至当前时刻的时长的积分；确定与所述积分正相关的第二补偿量；根据所述第二补偿量对所述压缩机的原始控制量进行补偿，以提高所述压缩机的运行频率；根据补偿后的原始控制量控制所述压缩机。
可选地，根据所述第一补偿量对所述压缩机的原始控制量进行补偿，包括：将所述第一补偿量与所述原始控制量的和，确定为所述补偿后的原始控制量。
可选地，根据所述第二补偿量对所述压缩机的原始控制量进行补偿，包括：将所述第一补偿量与所述原始控制量的和，确定为所述补偿后的原始控制量。
可选地，所述原始控制量是通过如下方式确定的：获得内机所在环境的当前环境温度，以及设定环境温度；获得所述设定环境温度与所述当前环境温度的温度差值，确定与所述温度差值相对应的所述原始控制量。
可选地，根据补偿后的原始控制量控制所述压缩机，包括：在所述补偿后的原始控制量大于或等于设定最大阈值的情况下，降低内机所在环境的设定环境温度。
可选地，用于热泵设备除霜的方法还包括：在打开补气阀门后，如果在第二设定时长内所述外机换热器的温度仍未达到所述设定化霜温度阈值，则关闭所述补气阀门，控制所述内机换热器进入制冷模式，所述外机换热器进入制热模式。
在一些实施例中，所述热泵设备包括压缩机，所述压缩机的进气口和排气口通过补气阀门连通，所述用于热泵设备除霜的装置包括：第一获得模块、第一控制模块和第二控制模块，第一获得模块被配置为在所述热泵设备的外机换热器处于制冷模式的情况下，获得所述外机换热器的温度；第一控制模块被配置为在所述外机换热器的温度小于或等于设定结霜温度阈值的情况下，打开所述补气阀门；第二控制模块被配置为在所述外机换热器的温度大于或等于设定化霜温度阈值的情况下，关闭所述补气阀门；其中，所述设定化霜温度阈值高于设定结霜温度阈值。
在一些实施例中，用于除霜的装置，包括处理器和存储有程序指令的存储器，所述处理器被配置为在执行所述程序指令时，执行前述实施例提供的用于除霜的方法。
在一些实施例中，热水机组包括前述实施例提供的用于除霜的装置。
本公开实施例提供的用于热泵设备除霜的方法、装置和热水机组，可以实现以下技术 效果：
在外机换热器的温度小于或等于设定结霜温度阈值的情况下，外机换热器容易结霜或已经结霜，此时打开压缩机的进气口和排气口之间的补气阀门，提高外机换热器的蒸发压力，进而提高外机换热器的蒸发温度，可以使外机换热器的温度升高，在外机换热器的温度大于或等于设定化霜温度阈值的情况下，外机换热器不易结霜或使外机换热器化霜，此时即可关闭压缩机进气口和排气口之间的补气阀门。在上述过程中，无需切换四通阀，即可实现预防结霜或化霜，延长了四通阀的使用寿命。
以上的总体描述和下文中的描述仅是示例性和解释性的，不用于限制本申请。
附图说明
一个或一个以上实施例通过与之对应的附图进行示例性说明，这些示例性说明和附图并不构成对实施例的限定，附图中具有相同参考数字标号的元件视为类似的元件，并且其中：
图1是本公开实施例提供的一种热泵设备的结构示意图；
图2是本公开实施例提供的一种用于热泵设备除霜的方法的示意图；
图3是本公开实施例提供的一种用于热泵设备除霜的方法的示意图；
图4是本公开实施例提供的一种用于热泵设备除霜的方法的示意图；
图5是本公开实施例提供的一种用于热泵设备除霜的方法的示意图；
图6是本公开实施例提供的一种用于热泵设备除霜的方法的示意图；
图7是本公开实施例提供的一种用于热泵设备除霜的装置的示意图；
图8是本公开实施例提供的一种用于热泵设备除霜的装置的示意图。
具体实施方式
为了能够更加详尽地了解本公开实施例的特点与技术内容，下面结合附图对本公开实施例的实现进行详细阐述，所附附图仅供参考说明之用，并非用来限定本公开实施例。在以下的技术描述中，为方便解释起见，通过多个细节以提供对所披露实施例的充分理解。然而，在没有这些细节的情况下，一个或一个以上实施例仍然可以实施。在其它情况下，为简化附图，熟知的结构和装置可以简化展示。
本公开实施例的说明书和权利要求书及上述附图中的术语“第一”、“第二”等是用于区别类似的对象，而不必用于描述特定的顺序或先后次序。应该理解这样使用的数据在适当情况下可以互换，以便这里描述的本公开实施例的实施例。此外，术语“包括”和“具 有”以及他们的任何变形，意图在于覆盖不排他的包含。
除非另有说明，术语“多个”表示两个或两个以上。
本公开实施例中，字符“/”表示前后对象是一种“或”的关系。例如，A/B表示：A或B。
术语“和/或”是一种描述对象的关联关系，表示可以存在三种关系。例如，A和/或B，表示：A或B，或，A和B这三种关系。
图1是本公开实施例提供的一种热泵设备的结构示意图。结合图1所示，该热泵设备包括压缩机11、四通阀12、内机换热器13、外机换热器14、节流阀15和补气阀门16，其中，压缩机11的进气口和排气口通过补气阀门16连通，压缩机11的进气口和排气口与四通阀12的两端连接，四通阀12的另外两端分别与内机换热器13的一端、外机换热器14一端连接，内机换热器13的另一端与节流阀15的一端连接，节流阀15的另一端与外机换热器14的另一端连接。
本公开实施例仅是示例性地说明了补气阀门16的位置，当然，该补气阀门16还可以一端连通至内机换热器13与四通阀12之间的管路上，补气阀门16的另一端连通至外机换热器14与四通阀12之间的管路上(图中未示出)。
或者，该补气阀门16的一端与压缩机11的进气口连接，补气阀门14的另一端与内机换热器13的进气口(内机换热器13处于制热模式)连接(图中未示出)。
或者，该补气阀门16的一端与压缩机11的排气口连接，补气阀门14的另一端与外机换热器14出气口(外机换热器14处于之类模式)连接(图中未示出)。
图2是本公开实施例提供的一种用于热泵设备除霜的方法的示意图，本公开实施例中的热泵设备指的是利用压缩机进行制冷或制热的设备，例如热水机组、空调等设备，该热泵设备包括压缩机、四通阀、内机换热器、外机换热器、节流阀和补气阀门，压缩机的进气口和排气口通过补气阀门连通。本公开实施例提供的用于热泵设备除霜的方法可由热泵设备的控制器执行。
结合图2所示，本公开实施例提供的用于热泵设备除霜的方法包括：
S201、在热泵设备的外机换热器处于制冷模式的情况下，获得外机换热器的温度。
外机换热器处于制冷模式，指的是外机换热器内部冷媒处于蒸发状态，此时外机换热器在外界环境中吸收热量。
可通过设置在外机换热器上的温度传感器获得外机换热器的温度。
S202、在外机换热器的温度小于或等于设定结霜温度阈值的情况下，打开补气阀门。
这里的补气阀门可以是电磁阀，通过控制电磁阀的通断电状态，即可实现打开电磁阀 或关闭电磁阀。
可在检测到外机换热器的温度小于或等于设定结霜温度阈值之后，立即打开补气阀门。
或者，还可在第一设定时长内，外机换热器的温度均低于设定结霜温度阈值，打开补气阀门。第一设定时长可以是15mim～60min中任一时长，例如，第一设定时长可以是15min、30min、45min或60min。
设定结霜阈值可以是-5℃～5℃中任一温度，例如，设定结霜阈值可以是-5℃、-4℃、-3℃、-2℃、-1℃、0℃、1℃、2℃、3℃、4℃或5℃。
S203、在外机换热器的温度大于或等于设定化霜温度阈值的情况下，关闭补气阀门。
设定化霜阈值可以是10℃或15℃。
在外机换热器的温度小于或等于设定结霜温度阈值的情况下，外机换热器容易结霜或已经结霜，此时打开压缩机的进气口和排气口之间的补气阀门，提高外机换热器的蒸发压力，进而提高外机换热器的蒸发温度，可以使外机换热器的温度升高，在外机换热器的温度大于或等于设定化霜温度阈值的情况下，外机换热器不易结霜或使外机换热器化霜，此时即可关闭压缩机进气口和排气口之间的补气阀门。在上述过程中，无需切换四通阀，即可实现预防结霜或化霜，延长了四通阀的使用寿命。
图3是本公开实施例提供的一种用于热泵设备除霜的方法的示意图。本公开实施例中的热泵设备指的是利用压缩机进行制冷或制热的设备，例如热水机组、空调等设备，该热泵设备包括压缩机、四通阀、内机换热器、外机换热器、节流阀和补气阀门，压缩机的进气口和排气口通过补气阀门连通。本公开实施例提供的用于热泵设备除霜的方法可由热泵设备的控制器执行。
结合图3所示，用于热泵设备除霜的方法包括：
S301、在热泵设备的外机换热器处于制冷模式的情况下，获得外机换热器的温度。
S302、在外机换热器的温度小于或等于设定结霜温度阈值的情况下，打开补气阀门。
S303、获得压缩机的频率，确定与压缩机的频率正相关的第一补偿量。
在补气阀门的开度不变的情况下，压缩机的频率越高，则流向补气阀门的冷媒越多，内机换热器内部冷媒压力降低的越多。确定与压缩机的运行频率正相关的第一补偿量，有利于提高内机换热器内部冷媒压力。
可将压缩机与第一补偿量的对应关系，预存在数据库中，在获得压缩机的频率后，可在数据库中查询对于压缩机的频率正相关的第一补偿量。
在一些应用场景中，特定型号的热泵设备的结构参数是已知的，对应特定型号的热泵 设备，可在其出厂前进行试验，以测试出补气阀门由关闭切换至打开状态，压缩机的频率与内机换热器的冷媒压力的降低值之间的对应关系，再进一步确定冷媒压力与降低值与压缩机的频率提高值的对应关系，最终确定出压缩机的频率提高值与第一补偿量的对应关系。
第一补偿量用于补偿由于补气阀门的分流作用引起的内机换热器的冷凝压力的降低值。
S304、根据第一补偿量对压缩机的原始控制量进行补偿，以提高压缩机的运行频率。
根据第一补偿量对压缩机的原始控制量进行补偿，可包括：将第一补偿量原始控制量的和，确定为补偿后的原始控制量。
或者，根据第一补偿量对压缩机的原始控制量进行补偿，可包括：将第一补偿量与原始控制量的乘积，确定为补偿后的原始控制量。
可选地，原始控制量是通过如下方式确定的：获得内机所在环境的当前环境温度，以及设定环境温度；获得设定环境温度与当前环境温度的温度差值，确定与温度差值相对应的原始控制量。例如空调现有的控制器，例如比例-积分-微分(Proportion Integral Differential，PID)控制器，均可确定出与温度差值相对应的用于控制压缩机频率的原始控制量，该原始控制量与压缩机的频率相对应。
在热泵设备为热水机组的情况下，内机所在环境的当前环境温度以及设定环境温度可以指水环境的当前温度以及设定温度。
在热泵设备为空调的情况下，内机所在环境的当前环境温度以及设定环境温度可以指室内环境的当前温度以及设定温度。
在一些应用场景中，还可以内机的当前出风温度表示当前环境温度，以内机的设定出风温度表示设定环境温度。
S305、根据补偿后的原始控制量控制压缩机。
打开补气阀门后，部分冷媒流向外机换热器，导致内机换热器内部冷凝压力降低，在内机换热器内部冷媒压力降低后，将会降低内机换热器的冷凝温度，降低内机换热器的温度，进一步地降低内机所在环境的温度，例如在热水机组中，内机所在环境的温度即为水温，在空调中，内机所在环境的温度即为室内环境温度，直至内机所在环境的温度传感器检测到温度变化在，再将压缩机的频率进行调节，以提高内机所在环境的温度，在由内机换热器的冷媒压力降低，至内机所在环境的温度产生变化，需要较长时间，在内机所在环境的温度产生变化后，再对内机所在环境的温度进行控制，导致在打开补气阀门后，需要较长时间才能稳定内机所在环境的温度。
而在补气阀门打开之后，立即将与压缩机的频率正相关的第一补偿量补偿至压缩机的原始控制量，提前提高压缩机的运行频率，可以使内机换热器内部的冷媒压力降低的较少或者不降低，这样可以使内机所在环境的温度降低的比较少或者不降低，缩短内机所在环境的温度的稳定时长，提高用户的使用体验。
可选地，根据补偿后的原始控制量控制压缩机，可包括：在补偿后的原始控制量小于设定最大阈值的情况下，以补偿后的原始控制量直接控制压缩机；其中，设定最大阈值与压缩机的设定最大频率阈值相对应，补偿后的原始控制量与压缩机的频率相对应。
在补偿后的原始控制量大于或等于设定最大阈值的情况下，可以设定最大阈值对压缩机进行控制。
或者，根据补偿后的原始控制量控制压缩机，可包括：在补偿后的原始控制量大于或等于设定最大阈值的情况下，降低内机所在环境的设定环境温度；其中，设定最大阈值与压缩机的设定最大频率阈值相对应，补偿后的原始控制量与压缩机的频率相对应。
在一些应用场景中，降低内机所在环境的设定环境温度可包括：将原设定环境温度的3/4确定为新设定环境温度，或者，将原设定环境温度的2/3确定为新设定环境温度，或者，将原设定环境温度的1/2确定为新设定环境参数，或者，将原设定环境温度的1/3作为新设定环境温度。
降低内机所在环境的设定环境温度后，再根据设定环境温度与当前环境温度的温度差值对压缩机进行控制的过程中，压缩机的频率不会实时运行在最大频率阈值，可避免压缩机长时间高负荷运转，提高了压缩机的使用寿命。
S306、在外机换热器的温度大于或等于设定化霜温度阈值的情况下，关闭补气阀门。
图4是本公开实施例提供的一种用于热泵设备除霜的方法的示意图。本公开实施例中的热泵设备指的是利用压缩机进行制冷或制热的设备，例如热水机组、空调等设备，该热泵设备包括压缩机、四通阀、内机换热器、外机换热器、节流阀和补气阀门，压缩机的进气口和排气口通过补气阀门连通。本公开实施例提供的用于热泵设备除霜的方法可由热泵设备的控制器执行。
结合图4所示，用于热泵设备除霜的方法包括：
S401、在热泵设备的外机换热器处于制冷模式的情况下，获得外机换热器的温度。
S402、在外机换热器的温度小于或等于设定结霜温度阈值的情况下，打开补气阀门。
S403、获得压缩机的频率。
S404、获得压缩机的频率对由打开补气阀门的时刻至当前时刻的时长的积分。
S405、确定与积分正相关的第二补偿量。
积分与第二补偿量的正相关关系可预存在数据库中，在获得积分后，即可在数据库中确定出与积分正相关的第二补偿量。
在一些应用场景中，特定型号的热泵设备的结构参数是已知的，对于特定型号的热泵设备，可在其出厂前进行试验，以测试出打开补气阀门后，积分与压缩机内部压力降低值的对应关系，进一步确定出压缩机内部压力降低值与压缩机的频率提高值的对应关系，最后确定出压缩机的频率提高值与第二补偿量的对应关系。
第二补偿量用于补偿由于外机换热器的蒸发效率变差引起的内机换热器的冷凝压力的降低值。
S406、根据第二补偿量对压缩机的原始控制量进行补偿，以提高压缩机的运行频率。
根据第二补偿量对压缩机的原始控制量进行补偿，可包括：将第一补偿量与原始控制量的和，确定为补偿后的原始控制量。
或者，根据第二补偿量对压缩机的原始控制量进行补偿，可包括：将第二补偿量与原始控制量的乘积，确定为补偿后的原始控制量。
在打开补气阀门后，外机换热器的蒸发压力升高，外机换热器的蒸发温度升高，降低了外机换热器内的蒸发效率，随着时间的推移，液态冷媒量增多，气态冷媒量减少，导致内机换热器内部的冷凝压力降低，最终导致内机换热器的温度降低，内机所在环境的温度降低，在内机所在环境的温度降低后，热泵设备的控制器，例如PID控制器，再根据内机所在环境的设定环境温度与当前环境温度的温度差值，输出与温度差值相对应的控制量，对压缩机的运行频率进行调节，以提高压缩机的运行频率，提高内机换热器的温度，提高内机所在环境的温度。这样会导致在打开补气阀门后，需要较长时间才能稳定内机所在环境的温度。
在本公开实施例中提供的技术方案中，在打开补气阀门后，以压缩机的频率对应外机换热器内蒸发效率的降低值，以压缩机的频率对由打开补气阀门的时刻至当前时刻的时长的积分，对应热泵设备内部系统的冷媒压力的降低值，再确定一个与积分相对应的第二补偿量，利用该第二补偿量对压缩机的频率进行补偿，可在打开补气阀门之后，立即由第二补偿量对由打开补气阀门导致的内机换热器的温度的降低趋势进行抵消处理，这样在打开补气阀门后，可以提高温度内机所在环境的温度的速度，降低稳定内机所在环境的温度所需的时长。
S407、根据补偿后的原始控制量控制压缩机。
S408、在外机换热器的温度大于或等于设定化霜温度阈值的情况下，关闭补气阀门。
图5是本公开实施例提供的一种用于热泵设备除霜的方法的示意图。本公开实施例中 的热泵设备指的是利用压缩机进行制冷或制热的设备，例如热水机组、空调等设备，该热泵设备包括压缩机、四通阀、内机换热器、外机换热器、节流阀和补气阀门，压缩机的进气口和排气口通过补气阀门连通。本公开实施例提供的用于热泵设备除霜的方法可由热泵设备的控制器执行。
结合图5所示，用于热泵设备除霜的方法包括：
S501、在热泵设备的外机换热器处于制冷模式的情况下，获得外机换热器的温度。
S502、在外机换热器的温度小于或等于设定结霜温度阈值的情况下，打开补气阀门。
S503、获得压缩机的频率。
S504、确定与压缩机的频率正相关的第一补偿量。
S505、获得压缩机的频率对由打开补气阀门的时刻至当前时刻的时长的积分。
S506、确定与积分正相关的第二补偿量。
S507、根据第一补偿量和第二补偿量对压缩机的原始控制量进行补偿，以提高压缩机的运行频率。
可将第一补偿量、第二补偿量和压缩机的原始控制量的和，确定为补偿后的压缩机的原始控制量。
S508、根据补偿后的原始控制量控制压缩机。
S509、在外机换热器的温度大于或等于设定化霜温度阈值的情况下，关闭补气阀门。
在本公开实施例中，以第一补偿量和第二补偿量在两个角度对压缩机的运行频率进行补偿，以提高内机所在环境的温度的稳定程度。
图6是本公开实施例提供的一种用于热泵设备除霜的方法的示意图。本公开实施例中的热泵设备指的是利用压缩机进行制冷或制热的设备，例如热水机组、空调等设备，该热泵设备包括压缩机、四通阀、内机换热器、外机换热器、节流阀和补气阀门，压缩机的进气口和排气口通过补气阀门连通。本公开实施例提供的用于热泵设备除霜的方法可由热泵设备的控制器执行。
结合图6所示，用于热泵设备除霜的方法包括：
S601、在热泵设备的外机换热器处于制冷模式的情况下，获得外机换热器的温度。
S602、在外机换热器的温度小于或等于设定结霜温度阈值的情况下，打开补气阀门。
S603、在打开补气阀门后，如果在第二设定时长内外机换热器的温度仍未达到设定化霜温度阈值，则关闭补气阀门，控制内机换热器进入制冷模式，外机换热器进入制热模式。
第二设定时长可为5～10min中任一时长，例如，第二设定时长可以是5min、6min、7min、8min、9min或10min。
S604、在外机换热器的温度大于或等于设定化霜温度阈值的情况下，关闭补气阀门。
采用公开实施例提供的技术方案，可在仅仅通过补气阀门无法有效除霜的情况下，将外机换热器切换为制热模式，以实现有效除霜。
图7是本公开实施例提供的一种用于热泵设备除霜的装置的示意图。
该热泵设备包括压缩机、四通阀、内机换热器、外机换热器、节流阀和补气阀门，压缩机进气口和排气口通过补气阀门连通。
结合图7所示，用于热泵设备除霜的装置包括第一获得模块71、第一控制模块72和第二控制模块73，其中，
第一获得模块71被配置为在热泵设备的外机换热器处于制冷模式的情况下，获得外机换热器的温度；
第一控制模块72被配置为在外机换热器的温度小于或等于设定结霜温度阈值的情况下，打开补气阀门；
第二控制模块73被配置为在外机换热器的温度大于或等于设定化霜温度阈值的情况下，关闭补气阀门。
在外机换热器的温度小于或等于设定结霜温度阈值的情况下，外机换热器容易结霜或已经结霜，此时打开压缩机的进气口和排气口之间的补气阀门，提高外机换热器的蒸发压力，进而提高外机换热器的蒸发温度，可以使外机换热器的温度升高，在外机换热器的温度大于或等于设定化霜温度阈值的情况下，外机换热器不易结霜或使外机换热器化霜，此时即可关闭压缩机进气口和排气口之间的补气阀门。在上述过程中，无需切换四通阀，即可实现预防结霜或化霜，延长了四通阀的使用寿命。
可选地，用于热泵除霜的装置还包括第二获得模块、第一确定模块、第一补偿模块和第三控制模块，其中，第二获得模块被配置为在打开补气阀门之后，获得压缩机的频率；第一确定模块被配置为确定与压缩机的频率正相关的第一补偿量；第一补偿模块被配置为根据第一补偿量对压缩机的原始控制量进行补偿，以提高压缩机的运行频率；第三控制模块，被配置为根据补偿后的原始控制量控制压缩机。
可选地，还包括：第三获得模块、第四获得模块、第二确定模块、第二补偿模块和第四控制模块，其中，第三获得模块被配置为在打开补气阀门之后，获得压缩机的频率；第四获得模块被配置为获得压缩机的频率对由打开补气阀门的时刻至当前时刻的时长的积分；第二确定模块被配置为确定与积分正相关的第二补偿量；第二补偿模块被配置为根据第二补偿量对压缩机的原始控制量进行补偿，以提高压缩机的运行频率；第四控制模块被配置为根据补偿后的原始控制量控制压缩机。
可选地，第一补偿模块被具体配置为将第一补偿量与原始控制量的和，确定为补偿后的原始控制量。
可选地，第二补偿模块被具体配置为将第一补偿量与原始控制量的和，确定为补偿后的原始控制量。
可选地，原始控制量是通过如下方式确定的：获得内机所在环境的当前环境温度，以及设定环境温度；获得设定环境温度与当前环境温度的温度差值，确定与温度差值相对应的原始控制量。
可选地，第三控制模块或第四控制模块被具体配置为：在补偿后的原始控制量大于或等于设定最大阈值的情况下，降低内机所在环境的设定环境温度。
可选地，用于热泵设备除霜的装置还包括第五控制模块，第五控制模块被配置为在打开补气阀门后，如果在第二设定时长内外机换热器的温度仍未达到设定化霜温度阈值，则关闭补气阀门，控制内机换热器进入制冷模式，外机换热器进入制热模式。
在一些实施例中，用于热泵设备除霜的装置包括处理器和存储有程序指令的存储器，处理器被配置为在执行程序指令时，执行前述实施例提供的用于热泵设备除霜的方法。
图8是本公开实施例提供的一种用于热泵设备除霜的装置的示意图。结合图8所示，用于热泵设备除霜的装置包括：
处理器(processor)81和存储器(memory)82，还可以包括通信接口(Communication Interface)83和总线84。其中，处理器81、通信接口83、存储器82可以通过总线84完成相互间的通信。通信接口83可以用于信息传输。处理器81可以调用存储器82中的逻辑指令，以执行前述实施例提供的用于热泵设备除霜的方法。
此外，上述的存储器82中的逻辑指令可以通过软件功能单元的形式实现并作为独立的产品销售或使用时，可以存储在一个计算机可读取存储介质中。
存储器82作为一种计算机可读存储介质，可用于存储软件程序、计算机可执行程序，如本公开实施例中的方法对应的程序指令/模块。处理器81通过运行存储在存储器82中的软件程序、指令以及模块，从而执行功能应用以及数据处理，即实现上述方法实施例中的方法。
存储器82可包括存储程序区和存储数据区，其中，存储程序区可存储操作系统、至少一个功能所需的应用程序；存储数据区可存储根据终端设备的使用所创建的数据等。此外，存储器82可以包括高速随机存取存储器，还可以包括非易失性存储器。
本公开实施例提供了一种热水机组，包含前述实施例提供的用于热泵设备除霜的装置。
本公开实施例提供了一种计算机可读存储介质，存储有计算机可执行指令，计算机可执行指令设置为执行前述实施例提供的用于热泵设备除霜的方法。
本公开实施例提供了一种计算机程序产品，计算机程序产品包括存储在计算机可读存储介质上的计算机程序，计算机程序包括程序指令，当程序指令被计算机执行时，使计算机执行前述实施例提供的用于热泵设备除霜的方法。
上述的计算机可读存储介质可以是暂态计算机可读存储介质，也可以是非暂态计算机可读存储介质。
本公开实施例的技术方案可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质中，包括一个或一个以上指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本公开实施例中方法的全部或部分步骤。而前述的存储介质可以是非暂态存储介质，包括：U盘、移动硬盘、只读存储器(Read-Only Memory，ROM)、随机读取存储器(Random Access Memory，RAM)、磁碟或者光盘等多种可以存储程序代码的介质，也可以是暂态存储介质。
以上描述和附图充分地示出了本公开的实施例，以使本领域的技术人员能够实践它们。其他实施例可以包括结构的、逻辑的、电气的、过程的以及其他的改变。实施例仅代表可能的变化。除非明确要求，否则单独的部件和功能是可选的，并且操作的顺序可以变化。一些实施例的部分和特征可以被包括在或替换其他实施例的部分和特征。而且，本申请中使用的用词仅用于描述实施例并且不用于限制权利要求。如在实施例以及权利要求的描述中使用的，除非上下文清楚地表明，否则单数形式的“一个”(a)、“一个”(an)和“所述”(the)旨在同样包括复数形式。另外，当用于本申请中时，术语“包括”(comprise)及其变型“包括”(comprises)和/或包括(comprising)等指陈述的特征、整体、步骤、操作、元素，和/或组件的存在，但不排除一个或一个以上其它特征、整体、步骤、操作、元素、组件和/或这些的分组的存在或添加。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括要素的过程、方法或者设备中还存在另外的相同要素。本文中，每个实施例重点说明的可以是与其他实施例的不同之处，各个实施例之间相同相似部分可以互相参见。对于实施例公开的方法、产品等而言，如果其与实施例公开的方法部分相对应，那么相关之处可以参见方法部分的描述。
本领域技术人员可以意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，能够以电子硬件、或者计算机软件和电子硬件的结合来实现。这些功能究竟以硬件还是软件方式来执行，可以取决于技术方案的特定应用和设计约束条件。技术人员可以对每个特定的应用来使用不同方法以实现所描述的功能，但是这种实现不应认为超出本公开 实施例的范围。技术人员可以清楚地了解到，为描述的方便和简洁，上述描述的系统、装置和单元的具体工作过程，可以参考前述方法实施例中的对应过程，在此不再赘述。
本文所披露的实施例中，所揭露的方法、产品(包括但不限于装置、设备等)，可以通过其它的方式实现。例如，以上所描述的装置实施例仅仅是示意性的，例如，单元的划分，可以仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式，例如多个单元或组件可以结合或者可以集成到另一个系统，或一些特征可以忽略，或不执行。另外，所显示或讨论的相互之间的耦合或直接耦合或通信连接可以是通过一些接口，装置或单元的间接耦合或通信连接，可以是电性，机械或其它的形式。作为分离部件说明的单元可以是或者也可以不是物理上分开的，作为单元显示的部件可以是或者也可以不是物理单元，即可以位于一个地方，或者也可以分布到多个网络单元上。可以根据实际的需要选择其中的部分或者全部单元来实现本实施例。另外，在本公开实施例中的各功能单元可以集成在一个处理单元中，也可以是各个单元单独物理存在，也可以两个或两个以上单元集成在一个单元中。
附图中的流程图和框图显示了根据本公开实施例的系统、方法和计算机程序产品的可能实现的体系架构、功能和操作。在这点上，流程图或框图中的每个方框可以代表一个模块、程序段或代码的一部分，模块、程序段或代码的一部分包含一个或一个以上用于实现规定的逻辑功能的可执行指令。在有些作为替换的实现中，方框中所标注的功能也可以以不同于附图中所标注的顺序发生。例如，两个连续的方框实际上可以基本并行地执行，它们有时也可以按相反的顺序执行，这可以依所涉及的功能而定。框图和/或流程图中的每个方框、以及框图和/或流程图中的方框的组合，可以用执行规定的功能或动作的专用的基于硬件的系统来实现，或者可以用专用硬件与计算机指令的组合来实现。

Claims (10)

  1. 一种用于热泵设备除霜的方法，其特征在于，所述热泵设备包括压缩机，所述压缩机的进气口和排气口通过补气阀门连通，所述方法包括：
    在所述热泵设备的外机换热器处于制冷模式的情况下，获得所述外机换热器的温度；
    在所述外机换热器的温度小于或等于设定结霜温度阈值的情况下，打开所述补气阀门；
    在所述外机换热器的温度大于或等于设定化霜温度阈值的情况下，关闭所述补气阀门。
  2. 根据权利要求1所述的方法，其特征在于，在打开补气阀门之后，还包括：
    获得压缩机的频率，确定与所述压缩机的频率正相关的第一补偿量；
    根据所述第一补偿量对所述压缩机的原始控制量进行补偿，以提高压缩机的运行频率；
    根据补偿后的原始控制量控制所述压缩机。
  3. 根据权利要求1所述的方法，其特征在于，在打开补气阀门之后，还包括：
    获得压缩机的频率；
    获得压缩机的频率对由打开补气阀门的时刻至当前时刻的时长的积分；
    确定与所述积分正相关的第二补偿量；
    根据所述第二补偿量对所述压缩机的原始控制量进行补偿，以提高所述压缩机的运行频率；
    根据补偿后的原始控制量控制所述压缩机。
  4. 根据权利要求2或3所述的方法，其特征在于，
    根据所述第一补偿量对所述压缩机的原始控制量进行补偿，包括：将所述第一补偿量与所述原始控制量的和，确定为所述补偿后的原始控制量；
    根据所述第二补偿量对所述压缩机的原始控制量进行补偿，包括：将所述第一补偿量与所述原始控制量的和，确定为所述补偿后的原始控制量。
  5. 根据权利要求2或3所述的方法，其特征在于，所述原始控制量是通过如下方式确定的：
    获得内机所在环境的当前环境温度，以及设定环境温度；
    获得所述设定环境温度与所述当前环境温度的温度差值，确定与所述温度差值相对应的所述原始控制量。
  6. 根据权利要求2或3的所述的方法，其特征在于，根据补偿后的原始控制量控制所述压缩机，包括：
    在所述补偿后的原始控制量大于或等于设定最大阈值的情况下，降低内机所在环境的设定环境温度。
  7. 根据权利要求1所述的方法，其特征在于，还包括：
    在打开补气阀门后，如果在第二设定时长内所述外机换热器的温度仍未达到所述设定化霜温度阈值，则关闭所述补气阀门，控制所述内机换热器进入制冷模式，所述外机换热器进入制热模式。
  8. 一种用于热泵设备除霜的装置，其特征在于，所述热泵设备包括压缩机，所述压缩机的进气口和排气口通过补气阀门连通，所述装置包括：
    第一获得模块，被配置为在所述热泵设备的外机换热器处于制冷模式的情况下，获得所述外机换热器的温度；
    第一控制模块，被配置为在所述外机换热器的温度小于或等于设定结霜温度阈值的情况下，打开所述补气阀门；
    第二控制模块，被配置为在所述外机换热器的温度大于或等于设定化霜温度阈值的情况下，关闭所述补气阀门；
    其中，所述设定化霜温度阈值高于设定结霜温度阈值。
  9. 一种用于除霜的装置，包括处理器和存储有程序指令的存储器，其特征在于，所述处理器被配置为在执行所述程序指令时，执行如权利要求1至7任一项所述的用于除霜的方法。
  10. 一种热水机组，其特征在于，包括如权利要求8或9所述的用于除霜的装置。
PCT/CN2022/095216 2021-07-07 2022-05-26 用于热泵设备除霜的方法、装置和热水机组 WO2023279886A1 (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202110770509.4A CN113639491B (zh) 2021-07-07 2021-07-07 用于热泵设备除霜的方法、装置和热水机组
CN202110770509.4 2021-07-07

Publications (1)

Publication Number Publication Date
WO2023279886A1 true WO2023279886A1 (zh) 2023-01-12

Family

ID=78416889

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/095216 WO2023279886A1 (zh) 2021-07-07 2022-05-26 用于热泵设备除霜的方法、装置和热水机组

Country Status (2)

Country Link
CN (1) CN113639491B (zh)
WO (1) WO2023279886A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113639491B (zh) * 2021-07-07 2023-03-31 青岛海尔空调电子有限公司 用于热泵设备除霜的方法、装置和热水机组

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014181866A (ja) * 2013-03-21 2014-09-29 Hitachi Appliances Inc 空気調和機
CN106016535A (zh) * 2016-05-31 2016-10-12 广东美的制冷设备有限公司 喷气增焓空调系统及其除霜控制方法
CN106828027A (zh) * 2017-01-23 2017-06-13 郑州科林车用空调有限公司 一种采用压力传感器的车用热泵空调
CN108931075A (zh) * 2018-06-20 2018-12-04 广东美的暖通设备有限公司 热泵系统及其控制方法
CN208595732U (zh) * 2018-07-23 2019-03-12 珠海格力电器股份有限公司 一种复合除霜的热泵循环系统
CN110736207A (zh) * 2019-09-26 2020-01-31 青岛海尔空调器有限总公司 用于空调除霜的控制方法、控制装置及空调
CN111811118A (zh) * 2020-07-24 2020-10-23 广东美的制冷设备有限公司 空调器及其制热控制方法、控制装置、可读存储介质
CN113639491A (zh) * 2021-07-07 2021-11-12 青岛海尔空调电子有限公司 用于热泵设备除霜的方法、装置和热水机组
CN113654135A (zh) * 2021-07-30 2021-11-16 青岛海尔空调电子有限公司 热泵式空调系统、控制方法和控制装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1983277B1 (en) * 2007-04-19 2017-05-31 Panasonic Corporation Refrigeration cycle apparatus
CN104214898B (zh) * 2014-08-29 2016-08-17 广州华凌制冷设备有限公司 空调器及其除霜控制方法和除霜控制系统
CN105387643A (zh) * 2015-12-22 2016-03-09 重庆泰思特试验仪器有限公司 一种用于高低温低气压试验箱的恒温控制系统
CN107401811A (zh) * 2017-07-26 2017-11-28 日照职业技术学院 用于汽车的空调除霜系统
CN108931039A (zh) * 2018-08-23 2018-12-04 珠海格力电器股份有限公司 一种空调器控制系统及空气调节器
CN210717972U (zh) * 2019-05-02 2020-06-09 浙江国祥股份有限公司 一种不停机轮换除霜的多联机系统
CN112611073A (zh) * 2020-11-30 2021-04-06 青岛海尔空调电子有限公司 空调系统及其除霜控制方法、存储介质、控制装置

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014181866A (ja) * 2013-03-21 2014-09-29 Hitachi Appliances Inc 空気調和機
CN106016535A (zh) * 2016-05-31 2016-10-12 广东美的制冷设备有限公司 喷气增焓空调系统及其除霜控制方法
CN106828027A (zh) * 2017-01-23 2017-06-13 郑州科林车用空调有限公司 一种采用压力传感器的车用热泵空调
CN108931075A (zh) * 2018-06-20 2018-12-04 广东美的暖通设备有限公司 热泵系统及其控制方法
CN208595732U (zh) * 2018-07-23 2019-03-12 珠海格力电器股份有限公司 一种复合除霜的热泵循环系统
CN110736207A (zh) * 2019-09-26 2020-01-31 青岛海尔空调器有限总公司 用于空调除霜的控制方法、控制装置及空调
CN111811118A (zh) * 2020-07-24 2020-10-23 广东美的制冷设备有限公司 空调器及其制热控制方法、控制装置、可读存储介质
CN113639491A (zh) * 2021-07-07 2021-11-12 青岛海尔空调电子有限公司 用于热泵设备除霜的方法、装置和热水机组
CN113654135A (zh) * 2021-07-30 2021-11-16 青岛海尔空调电子有限公司 热泵式空调系统、控制方法和控制装置

Also Published As

Publication number Publication date
CN113639491B (zh) 2023-03-31
CN113639491A (zh) 2021-11-12

Similar Documents

Publication Publication Date Title
CN110425112B (zh) 防压缩机液击的空调及防压缩机液击的控制方法
CN111854200B (zh) 一种冷柜设备、制冷系统及其控制方法
JP2017502247A (ja) エアコンシステム及びエアコンシステムの制御方法
WO2023000828A1 (zh) 用于调节热泵设备排气过热度的方法、装置和热泵设备
WO2023097936A1 (zh) 用于控制空调器的方法及装置、空调器、存储介质
JP2014029222A (ja) 空気調和機
WO2023279886A1 (zh) 用于热泵设备除霜的方法、装置和热水机组
WO2024193154A1 (zh) 用于冷库的控制方法、装置及冷库、存储介质
CN107084547B (zh) 空调系统及用于空调系统的控制方法
CN112146260A (zh) 用于空调防凝露的方法、装置和空调
CN109405101B (zh) 一种双风路中央空调机组及其控制方法
WO2020098302A1 (zh) 一种除霜系统、除霜方法及空调器
WO2024021439A1 (zh) 用于控制空调的方法、装置、空调和存储介质
CN113959111B (zh) 热泵系统及用于控制热泵系统的方法、装置
WO2023010956A1 (zh) 冷热源热泵集成系统及用于其控制的方法及装置
CN108692425B (zh) 空调器除霜控制方法
CN113639415B (zh) 用于空调器除霜的方法和装置、空调器
CN117267885A (zh) 用于空调器除霜的控制方法、装置及空调器、存储介质
CN114087738A (zh) 一种空调的控制方法、装置、存储介质及空调
CN111854201B (zh) 一种冷柜设备、制冷系统及其控制方法
CN111854202B (zh) 一种冷柜设备、制冷系统及其控制方法
CN104566866A (zh) 一种空调综合防冻方法
CN111426001B (zh) 一种多联机空调及其控制方法
CN111854206B (zh) 一种冷柜设备、制冷系统及其控制方法
CN116839168A (zh) 一种evi热泵空调的除霜控制方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22836641

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 22836641

Country of ref document: EP

Kind code of ref document: A1