CN116067056A - Control system and control method for hot water mode of heat pump air conditioner - Google Patents
Control system and control method for hot water mode of heat pump air conditioner Download PDFInfo
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- CN116067056A CN116067056A CN202211704785.1A CN202211704785A CN116067056A CN 116067056 A CN116067056 A CN 116067056A CN 202211704785 A CN202211704785 A CN 202211704785A CN 116067056 A CN116067056 A CN 116067056A
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- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D15/00—Other domestic- or space-heating systems
- F24D15/04—Other domestic- or space-heating systems using heat pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
- F24D19/1039—Arrangement or mounting of control or safety devices for water heating systems for central heating the system uses a heat pump
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/20—Control of fluid heaters characterised by control inputs
- F24H15/212—Temperature of the water
- F24H15/223—Temperature of the water in the water storage tank
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
- F24H15/375—Control of heat pumps
- F24H15/385—Control of expansion valves of heat pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
- F24H15/375—Control of heat pumps
- F24H15/39—Control of valves for distributing refrigerant to different evaporators or condensers in heat pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H15/00—Control of fluid heaters
- F24H15/40—Control of fluid heaters characterised by the type of controllers
- F24H15/414—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based
- F24H15/421—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based using pre-stored data
- F24H15/429—Control of fluid heaters characterised by the type of controllers using electronic processing, e.g. computer-based using pre-stored data for selecting operation modes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H4/00—Fluid heaters characterised by the use of heat pumps
- F24H4/02—Water heaters
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- 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
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
- F25B29/003—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the compression type system
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- 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
- F25B30/00—Heat pumps
- F25B30/02—Heat pumps of the compression type
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- 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
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- 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
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
- F25B41/34—Expansion valves with the valve member being actuated by electric means, e.g. by piezoelectric actuators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2200/00—Heat sources or energy sources
- F24D2200/12—Heat pump
- F24D2200/123—Compression type heat pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/18—Details or features not otherwise provided for combined with domestic apparatus
- F24F2221/183—Details or features not otherwise provided for combined with domestic apparatus combined with a hot-water boiler
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- 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
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- Combustion & Propulsion (AREA)
- Chemical & Material Sciences (AREA)
- Signal Processing (AREA)
- Sustainable Development (AREA)
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- Life Sciences & Earth Sciences (AREA)
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- Mathematical Physics (AREA)
- Computer Hardware Design (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a control system and a control method of a hot water mode of a heat pump air conditioner. According to the invention, the opening proportion of the main air pipe of the outdoor unit can be adjusted according to different conditions through the electric ball valve, so that the domestic water tank can be preferentially ensured to produce hot water during operation, the comfort level of equipment is improved, and the energy consumption is reduced.
Description
Technical Field
The invention relates to a control system and a control method for a hot water mode of a heat pump air conditioner.
Background
At present, when people use air conditioning for refrigerating and heating, the water heater and the floor heating are required to be purchased synchronously to meet the domestic living needs, customers not only need to purchase 3 sets of equipment but also need to install 3 times, and unnecessary time and money are wasted, so that a multi-split air conditioner integrating the functions of refrigerating and heating, heating and heating water appears on the market, an indoor unit and a floor heating water tank are driven simultaneously through an outdoor unit, and the following problems still exist in the actual use process of the multi-split air conditioner: 1. when only hot water is used in summer, the host operates according to heating, so that high-temperature and high-pressure exhaust gas generated by the compressor enters the indoor unit, and at the moment, the indoor unit does not need heating, so that invalid heat loss is caused, and finally, redundant power consumption is caused; 2. when the temperature is below minus 15 ℃ in winter, the temperature of the hot water cannot meet the temperature of the bath hot water when the air conditioner heats and warms the ground and the hot water is used simultaneously, and if the capacity of the outdoor unit is increased to solve the problem, the equipment cost is greatly increased.
Disclosure of Invention
The invention aims at the problems, and provides a control system and a control method for a hot water mode of a heat pump air conditioner, which effectively solve the problems pointed out in the background art.
The technical scheme adopted by the invention is as follows:
the utility model provides a control system of heat pump air conditioner hot water mode, includes off-premises station, at least one indoor set, living water tank and warms up the module, the air pipe mouth of off-premises station all links to each other with indoor set and warms up the module through total conversion module, the liquid mouth of pipe of off-premises station links to each other with indoor set, living water tank and warms up the module respectively, the off-premises station links to each other with the living water tank through the third root canal at the inlet of cross valve, be equipped with hot water conversion module on the refrigerant pipeline of living water tank, the condenser exit end of off-premises station is equipped with condenser export electronic expansion valve.
Preferably, the total conversion module comprises a control board and an electric ball valve, and the hot water conversion module comprises a control board, a hot water electronic expansion valve and a water temperature sensor.
Meanwhile, the invention also provides a control method of the hot water mode of the heat pump air conditioner, which comprises the following steps:
1) When the indoor unit and the floor heating module are both closed and the domestic water tank is opened, the electric ball valve of the air pipe orifice of the outdoor unit is closed, and all the refrigerant generated by the outdoor unit is sent into the domestic water tank for heat exchange, and when the water temperature of the domestic water tank meets the set temperature, the outdoor unit is stopped;
2) When the indoor unit is started, the opening of the electronic expansion valve at the outlet of the condenser is controlled to be 200 steps, the opening of the electronic ball valve is controlled to be 480 steps if the load of the indoor unit is 20% or less of the total capacity of the outdoor unit, and the opening of the electronic expansion valve at the outlet of the condenser and the opening of the electronic ball valve are controlled to be 480 steps if the load of the indoor unit is 20% or more of the total capacity of the outdoor unit;
3) When the indoor unit is started and the domestic water tank is started, if the outdoor environment temperature is more than or equal to 0 ℃, the electric ball valve and the condenser outlet electronic expansion valve are controlled to be opened to the maximum opening, and if the outdoor environment temperature is lower than 0 ℃, the low-temperature control is performed, wherein the specific control mode is as follows:
3a) If the conditions a 1) -a 5) are simultaneously met, controlling the compressor of the outdoor unit to operate according to the highest frequency, wherein the opening of the electric ball valve is 350 steps, the wind speed of the indoor unit is reduced by 5 percent, the low-temperature control is exited until the temperature of the domestic water tank reaches the set temperature, and the electric ball valve and the condenser outlet electronic expansion valve are opened to the maximum opening:
a1 The outdoor environment temperature is more than or equal to-7 ℃;
a2 The starting load of the indoor unit plus the floor heating module is more than or equal to 50% of the total capacity of the outdoor unit;
a3 The indoor set setting temperature-the indoor current temperature is more than or equal to 5 ℃;
a4 The set temperature of the living water tank-the current temperature of the living water tank is more than or equal to 5 ℃;
a5 The set temperature of the floor heating module-the current temperature of the floor heating module is more than or equal to 5 ℃;
3b) If b 1) -b 5) are simultaneously satisfied), controlling the compressor of the outdoor unit to operate according to the highest frequency, wherein the opening of the electric ball valve is 240 steps, the wind speed of the indoor unit is reduced by 10 percent, the electric ball valve and the condenser outlet electronic expansion valve are opened to the maximum opening until the temperature of the domestic water tank reaches the set temperature and exits the low-temperature control:
b1 -15 ℃ which is less than or equal to-7 ℃ which is the outdoor environment temperature;
b2 The starting load of the indoor unit plus the floor heating module is more than or equal to 50% of the total capacity of the outdoor unit;
b3 The indoor set setting temperature-the indoor current temperature is more than or equal to 5 ℃;
b4 The set temperature of the living water tank-the current temperature of the living water tank is more than or equal to 5 ℃;
b5 The compressor running frequency of the outdoor unit is smaller than or equal to the maximum frequency;
3c) If c 1) -c 5) are simultaneously met), controlling the compressor of the outdoor unit to operate according to the highest frequency, wherein the opening of the electric ball valve is 200 steps, the wind speed of the indoor unit is reduced by 20 percent, the electric ball valve and the condenser outlet electronic expansion valve are opened to the maximum opening until the temperature of the domestic water tank reaches the set temperature and exits the low-temperature control:
c1 The outdoor environment temperature is < -15 ℃;
c2 The starting load of the indoor unit plus the floor heating module is more than or equal to 50% of the total capacity of the outdoor unit;
c3 The indoor set setting temperature-the indoor current temperature is more than or equal to 5 ℃;
c4 The set temperature of the living water tank-the current temperature of the living water tank is more than or equal to 5 ℃;
c5 The compressor operating frequency of the outdoor unit is equal to or less than the maximum frequency.
When the living water tank is independently started in summer to use hot water, all high-pressure gas generated by the outdoor unit enters the living water tank through the third pipe to generate hot water by closing the electric ball valve of the main air pipe; when the temperature is below zero in winter and hot water, floor heating and air conditioning are used for heating, the opening proportion of the air pipe is adjusted through the electric ball valve, and the indoor machine heating capacity is adjusted to meet the requirement of rapid heating, and when the temperature of water reaches the set temperature of the domestic water tank, the opening proportion is adjusted through the electric ball valve, and the indoor machine energy requirement is met; when only one indoor unit is started in summer, namely the load of the indoor unit accounts for 20% of the total capacity of the outdoor unit, the domestic water tank is started, most of high-pressure gas enters the domestic water tank to heat water by adjusting the opening proportion of the electronic expansion valve at the outlet of the condenser of the outdoor unit, and at the same time, a small part of high-pressure gas enters the condenser at the outer side to be condensed, and the condensed liquid refrigerant and the liquid refrigerant exchanging heat with the domestic water tank enter the indoor unit to be refrigerated.
According to the invention, the opening proportion of the main air pipe of the outdoor unit can be adjusted according to different conditions through the electric ball valve, so that the domestic water tank can be preferentially ensured to produce hot water during operation, the comfort level of equipment is improved, and the energy consumption is reduced.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Detailed Description
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
Furthermore, in the description of the present invention, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "clockwise," "counterclockwise," etc. indicate or are based on the orientation or positional relationship shown in the drawings, merely for convenience of description and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more, unless otherwise clearly defined.
In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The invention will now be described in further detail with reference to the accompanying drawings by means of specific examples.
As shown in fig. 1, a control system of a hot water mode of a heat pump air conditioner comprises an outdoor unit 1, at least one indoor unit 2, a living water tank 3 and a floor heating module 4, wherein an air pipe opening of the outdoor unit 1 is connected with the indoor unit 2 and the floor heating module 4 through a total conversion module 5, a liquid pipe opening of the outdoor unit 1 is respectively connected with the indoor unit 2, the living water tank 3 and the floor heating module 4, an inlet end of the outdoor unit 1 is connected with the living water tank 3 through a third pipe 7, a hot water conversion module 8 is arranged on a refrigerant pipeline of the living water tank 3, and a condenser outlet electronic expansion valve 9 is arranged at a condenser outlet end of the outdoor unit 1.
The total conversion module 5 comprises a control board and an electric ball valve, and the hot water conversion module 8 comprises a control board, a hot water electronic expansion valve and a water temperature sensor.
A control method of a hot water mode of a heat pump air conditioner comprises the following steps:
1) When the indoor unit 2 and the floor heating module 4 are both closed and the domestic water tank 3 is opened, the electric ball valve of the air pipe orifice of the outdoor unit 1 is closed, all the refrigerant generated by the outdoor unit 1 is sent into the domestic water tank 3 for heat exchange, and when the water temperature of the domestic water tank 3 meets the set temperature, the outdoor unit 1 is stopped;
2) When the floor heating module 4 is closed, the indoor unit 2 is started to refrigerate, and the domestic water tank 3 is started, if the load of the indoor unit 2 is 20% or less of the total capacity of the outdoor unit 1, the opening degree of the condenser outlet electronic expansion valve 9 is controlled to be 200 steps, the opening degree of the electric ball valve is controlled to be 480 steps, and if the load of the indoor unit 2 is 20% or more of the total capacity of the outdoor unit 1, the opening degrees of the condenser outlet electronic expansion valve 9 and the electric ball valve are controlled to be 480 steps;
3) When the floor heating module 4 is started, the indoor unit 2 is started for heating, and the living water tank 3 is started, if the outdoor environment temperature is more than or equal to 0 ℃, the electric ball valve and the condenser outlet electronic expansion valve 9 are controlled to be opened to the maximum opening, and if the outdoor environment temperature is lower than 0 ℃, the low-temperature control is performed, wherein the specific control mode is as follows:
3a) If the conditions a 1) -a 5) are simultaneously met, the compressor of the outdoor unit 1 is controlled to operate according to the highest frequency, the opening of the electric ball valve is 350 steps, the wind speed of the indoor unit 2 is reduced by 5 percent, the electric ball valve and the condenser outlet electronic expansion valve 9 are opened to the maximum opening until the temperature of the living water tank 3 reaches the set temperature and exits the low-temperature control:
a1 The outdoor environment temperature is more than or equal to-7 ℃;
a2 The starting load of the indoor unit plus the floor heating module is more than or equal to 50% of the total capacity of the outdoor unit;
a3 The indoor set setting temperature-the indoor current temperature is more than or equal to 5 ℃;
a4 The set temperature of the living water tank-the current temperature of the living water tank is more than or equal to 5 ℃;
a5 The set temperature of the floor heating module-the current temperature of the floor heating module is more than or equal to 5 ℃;
3b) If b 1) -b 5) are simultaneously satisfied), the compressor of the outdoor unit 1 is controlled to operate according to the highest frequency, the opening of the electric ball valve is 240 steps, the wind speed of the indoor unit 2 is reduced by 10 percent, the electric ball valve and the condenser outlet electronic expansion valve 9 are opened to the maximum opening until the temperature of the living water tank 3 reaches the set temperature and exits the low-temperature control:
b1 -15 ℃ which is less than or equal to-7 ℃ which is the outdoor environment temperature;
b2 The starting load of the indoor unit plus the floor heating module is more than or equal to 50% of the total capacity of the outdoor unit;
b3 The indoor set setting temperature-the indoor current temperature is more than or equal to 5 ℃;
b4 The set temperature of the living water tank-the current temperature of the living water tank is more than or equal to 5 ℃;
b5 The compressor running frequency of the outdoor unit is smaller than or equal to the maximum frequency;
3c) If c 1) -c 5) are simultaneously satisfied), controlling the compressor of the outdoor unit 1 to operate according to the highest frequency, wherein the opening of the electric ball valve is 200 steps, the wind speed of the indoor unit 2 is reduced by 20 percent until the temperature of the living water tank 3 reaches the set temperature and exits the low-temperature control, and the electric ball valve and the condenser outlet electronic expansion valve 9 are opened to the maximum opening:
c1 The outdoor environment temperature is < -15 ℃;
c2 The starting load of the indoor unit plus the floor heating module is more than or equal to 50% of the total capacity of the outdoor unit;
c3 The indoor set setting temperature-the indoor current temperature is more than or equal to 5 ℃;
c4 The set temperature of the living water tank-the current temperature of the living water tank is more than or equal to 5 ℃;
c5 The compressor operating frequency of the outdoor unit is equal to or less than the maximum frequency.
Finally, it should be noted that the above list is only specific embodiments of the present invention. Obviously, the invention is not limited to the above embodiments, but many variations are possible. All modifications directly derived or suggested to one skilled in the art from the present disclosure should be considered as being within the scope of the present invention.
Claims (3)
1. The utility model provides a control system of heat pump air conditioner hot water mode, its characterized in that includes off-premises station (1), at least one indoor set (2), living water tank (3) and ground warm module (4), the air pipe mouth of off-premises station (1) all links to each other with indoor set (2) and ground warm module (4) through total conversion module (5), the liquid mouth of pipe and indoor set (2), living water tank (3) and ground warm module (4) of off-premises station (1) link to each other respectively, off-premises station (1) link to each other with living water tank (3) through third root canal (7) at the entrance point of cross valve (6), be equipped with hot water conversion module (8) on the refrigerant pipeline of living water tank (3), the condenser exit end of off-premises station (1) is equipped with condenser export electronic expansion valve (9).
2. The control system of a hot water mode of a heat pump air conditioner according to claim 1, wherein the total conversion module (5) comprises a control board and an electric ball valve, and the hot water conversion module (8) comprises a control board, a hot water electronic expansion valve and a water temperature sensor.
3. The control method of the hot water mode of the heat pump air conditioner is characterized by comprising the following steps of:
1), when the indoor unit (2) and the floor heating module (4) are closed, the electric ball valve of the air pipe orifice of the outdoor unit (1) is closed when the domestic water tank (3) is opened, the refrigerant generated by the outdoor unit (1) is all sent into the domestic water tank (3) for heat exchange, and when the water temperature of the domestic water tank (3) meets the set temperature, the outdoor unit (1) is stopped;
2) When the local heating module (4) is closed, the indoor unit (2) is started for refrigeration, and the domestic water tank (3) is started, if the load of the indoor unit (2) is 20% or less of the total capacity of the outdoor unit (1), controlling the opening of the condenser outlet electronic expansion valve (9) to be 200 steps, and the opening of the electric ball valve to be 480 steps, and if the load of the indoor unit (2) is 20% or more of the total capacity of the outdoor unit (1), controlling the opening of the condenser outlet electronic expansion valve (9) and the opening of the electric ball valve to be 480 steps;
3) When the floor heating module (4) is started, the indoor unit (2) is started to heat, and the domestic water tank (3) is started, if the outdoor environment temperature is more than or equal to 0 ℃, the electric ball valve and the condenser outlet electronic expansion valve (9) are controlled to be opened to the maximum opening degree, and if the outdoor environment temperature is lower than 0 ℃, the low-temperature control is performed, wherein the specific control mode is as follows:
3a) If the conditions a 1) -a 5) are met simultaneously, the compressor of the outdoor unit (1) is controlled to operate according to the highest frequency, the opening of the electric ball valve is 350 steps, the wind speed of the indoor unit (2) is reduced by 5 percent, the electric ball valve and the condenser outlet electronic expansion valve (9) are opened to the maximum opening until the temperature of the domestic water tank (3) reaches the set temperature and exits the low-temperature control:
a1 The outdoor environment temperature is more than or equal to-7 ℃;
a2 The starting load of the indoor unit plus the floor heating module is more than or equal to 50% of the total capacity of the outdoor unit;
a3 The indoor set setting temperature-the indoor current temperature is more than or equal to 5 ℃;
a4 The set temperature of the living water tank-the current temperature of the living water tank is more than or equal to 5 ℃;
a5 The set temperature of the floor heating module-the current temperature of the floor heating module is more than or equal to 5 ℃;
3b) If b 1) -b 5) are simultaneously met, the compressor of the outdoor unit (1) is controlled to operate according to the highest frequency, the opening of the electric ball valve is 240 steps, the wind speed of the indoor unit (2) is reduced by 10 percent, the electric ball valve and the condenser outlet electronic expansion valve (9) are opened to the maximum opening until the temperature of the domestic water tank (3) reaches the set temperature and exits the low-temperature control:
b1 -15 ℃ which is less than or equal to-7 ℃ which is the outdoor environment temperature;
b2 The starting load of the indoor unit plus the floor heating module is more than or equal to 50% of the total capacity of the outdoor unit;
b3 The indoor set setting temperature-the indoor current temperature is more than or equal to 5 ℃;
b4 The set temperature of the living water tank-the current temperature of the living water tank is more than or equal to 5 ℃;
b5 The compressor running frequency of the outdoor unit is smaller than or equal to the maximum frequency; 3c) If c 1) -c 5) are simultaneously met, the compressor of the outdoor unit (1) is controlled to operate according to the highest frequency, the opening of the electric ball valve is 200 steps, the wind speed of the indoor unit (2) is reduced by 20 percent, the electric ball valve and the condenser outlet electronic expansion valve (9) are opened to the maximum opening until the temperature of the domestic water tank (3) reaches the set temperature and exits the low-temperature control:
c1 The outdoor environment temperature is < -15 ℃;
c2 The starting load of the indoor unit plus the floor heating module is more than or equal to 50% of the total capacity of the outdoor unit;
c3 The indoor set setting temperature-the indoor current temperature is more than or equal to 5 ℃;
c4 The set temperature of the living water tank-the current temperature of the living water tank is more than or equal to 5 ℃;
c5 The compressor operating frequency of the outdoor unit is equal to or less than the maximum frequency.
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| CN202211704785.1A CN116067056A (en) | 2022-12-29 | 2022-12-29 | Control system and control method for hot water mode of heat pump air conditioner |
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| CN202211704785.1A CN116067056A (en) | 2022-12-29 | 2022-12-29 | Control system and control method for hot water mode of heat pump air conditioner |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117870196A (en) * | 2024-02-01 | 2024-04-12 | 珠海三友环境技术有限公司 | A switching control method for a heat pump air conditioner system with a combination mode |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117870196A (en) * | 2024-02-01 | 2024-04-12 | 珠海三友环境技术有限公司 | A switching control method for a heat pump air conditioner system with a combination mode |
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