CN115247843B - Teflon-ground water multi-connected air conditioning unit and radiation refrigeration method thereof - Google Patents

Teflon-ground water multi-connected air conditioning unit and radiation refrigeration method thereof Download PDF

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Publication number
CN115247843B
CN115247843B CN202210842606.4A CN202210842606A CN115247843B CN 115247843 B CN115247843 B CN 115247843B CN 202210842606 A CN202210842606 A CN 202210842606A CN 115247843 B CN115247843 B CN 115247843B
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water
air conditioning
indoor
conditioning unit
temperature
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CN115247843A (en
Inventor
郭耀冬
五十住晋一
范增年
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Mitsubishi Heavy Industries Haier Qingdao Air Conditioners Co Ltd
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Mitsubishi Heavy Industries Haier Qingdao Air Conditioners Co Ltd
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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007Indoor units, e.g. fan coil units
    • F24F1/0043Indoor units, e.g. fan coil units characterised by mounting arrangements
    • F24F1/005Indoor units, e.g. fan coil units characterised by mounting arrangements mounted on the floor; standing on the floor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007Indoor units, e.g. fan coil units
    • F24F1/0083Indoor units, e.g. fan coil units with dehumidification means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63Electronic processing
    • F24F11/64Electronic processing using pre-stored data
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63Electronic processing
    • F24F11/65Electronic processing for selecting an operating mode
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/70Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83Control 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
    • F24F11/85Control 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 variable-flow pumps
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/89Arrangement or mounting of control or safety devices
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24Means for preventing or suppressing noise
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/24Means for preventing or suppressing noise
    • F24F2013/247Active noise-suppression
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/10Temperature
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/20Humidity
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00Details or features not otherwise provided for
    • F24F2221/54Heating and cooling, simultaneously or alternatively
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00Integration of renewable energy sources in buildings
    • Y02B10/40Geothermal heat-pumps

Abstract

The invention particularly discloses a radiation refrigeration method of a solar energy, fluorine and ground water multi-connected air conditioning unit, and also discloses a solar energy, fluorine and ground water multi-connected air conditioning unit, wherein a water module and an outdoor unit in the solar energy, fluorine and ground water multi-connected air conditioning unit are utilized to perform heat exchange for circulating water refrigeration, and the heat is introduced into a floor heating of a user for radiation refrigeration; the solar energy, fluorine and ground water multi-connected air conditioning unit can dehumidify simultaneously while performing radiation refrigeration. The invention relates to a ceiling-fluorine-ground-water multi-connected air conditioning unit, which comprises an outdoor unit, a water module, an indoor unit, an indoor wire controller, a floor heater, a floor temperature sensor, an indoor environment temperature sensor and a humidity sensor, wherein the water module is connected with the floor heater through a water circulation assembly, the water circulation assembly comprises a water pump and an electric two-way valve, the outdoor unit is respectively connected with the indoor unit and the water module through refrigerant circulation pipelines, the indoor wire controller is in communication connection with a control board of the water module, and the floor temperature sensor, the indoor environment temperature sensor, the humidity sensor and the electric two-way valve are respectively connected with the indoor wire controller.

Description

Teflon-ground water multi-connected air conditioning unit and radiation refrigeration method thereof
Technical Field
The invention relates to the technical field of a fluorine-free and water-free multi-connected air conditioning unit, in particular to a solar energy, fluorine and ground water multi-connected air conditioning unit and a radiation refrigeration method thereof.
Background
The water module of the traditional air conditioning unit with the multiple-unit type air conditioning units with the fluorine and the water only heats water to the ground for heating in winter, and the refrigeration in summer uses cold air blown out by the air conditioning unit to cool the room. Adopt indoor set cooling to have noise, cold wind directly blow the problem that influences the comfort level. How to improve the comfort and reduce noise of the air conditioning unit with multiple water and air conditioning units with fluorine in summer is a problem to be solved by the technicians in the field.
Disclosure of Invention
The invention aims to provide a water-air conditioning unit with multiple water-air conditioning units and a radiation refrigeration method thereof, which are used for solving the problems in the background technology.
In order to achieve the purpose, the invention provides a radiation refrigeration method of a solar energy, fluorine and ground water multi-connected air conditioning unit, which comprises the following steps: the method comprises the steps that a user inputs a target indoor temperature Ts, an air conditioning unit detects an actual indoor temperature Ta, whether the actual indoor temperature Ta is larger than the target indoor temperature Ts or not is judged, if the actual indoor temperature Ta is larger than the target indoor temperature Ts, the air conditioning unit starts a radiation refrigeration mode, wherein the radiation refrigeration mode refers to heat exchange between a water module of the air conditioning unit with the outdoor unit, and circulating water in the water module is cooled and is led into floor heating of the user.
Preferably, after the air conditioning unit starts the radiation refrigeration mode, cold water is introduced into the floor heating of the user, and in order to prevent dew condensation caused by excessively low temperature of the indoor floor, the method further comprises a dew prevention control mode:
the indoor wire controller of the air conditioning unit detects the actual indoor temperature Ta and the actual ground temperature Tf, calculates the dew point temperature Td under the current condition,
judging whether Ta is larger than Ts-1, if so, further judging whether Tf is smaller than Td+a, if so, stopping the radiation refrigeration mode, wherein a is a first temperature interval value, and the value range of a is 0-5 ℃.
Preferably, the exiting condition of the anti-condensation control mode is that Tf > td+a is satisfied, a is a temperature interval value, and the value range of a is 0-5 ℃.
Preferably, after the air conditioning unit turns on the radiation refrigeration mode, the real relative humidity RH in the room needs to be detected in real time to ensure that the humidity in the room is suitable, and the method further includes a dehumidification mode:
the indoor wire controller of the solar energy, fluorine and ground water multi-connected air conditioning unit detects the actual relative humidity RH,
judging whether Ta is more than Ts-1, if so, further judging whether RH is more than RHs, wherein RHs refers to the set relative humidity, and if so, starting a dehumidification mode;
the dehumidification is completed by the indoor unit of the air conditioning unit with the multiple of the water and the fluorine.
Preferably, the exit condition of the dehumidification mode is RH < RHs-b, b is a humidity interval value, and the value range of b is 0-10%.
Preferably, the air conditioning unit can also simultaneously start a dehumidification mode when the radiation refrigeration mode is started, and the dehumidification mode is started when the air conditioning unit is judged to meet RH > RHs after the dehumidification mode is judged to meet Ta > Ts.
Preferably, the dehumidifying mode exit condition means that RH < RHs-b is satisfied, b is a humidity interval value, and the value range of b is 0-10%.
The invention also provides a water-air conditioner unit with multiple water-air conditioner units, which comprises an outdoor unit, a water module, an indoor unit, an indoor wire controller, a floor heater, a floor temperature sensor, an indoor environment temperature sensor and a humidity sensor, wherein the water module is connected with the floor heater through a water circulation assembly, the water circulation assembly comprises a water pump and an electric two-way valve, the outdoor unit is respectively connected with the indoor unit and the water module through a refrigerant circulation pipeline, the indoor wire controller is in communication connection with a control board of the water module, and the floor temperature sensor, the indoor environment temperature sensor, the humidity sensor and the electric two-way valve are respectively and electrically connected with the indoor wire controller.
Preferably, the indoor unit, the indoor wire controller, the floor heater, the floor temperature sensor, the indoor environment temperature sensor, the humidity sensor and the electric two-way valve are all provided with a plurality of valves, and the quantity of the valves is the same.
Preferably, the water circulation assembly comprises a water collector and a water separator, wherein a water outlet of the water module is connected with the ground heating device through the water separator, and a water return port of the water module is connected with the ground heating device through the water collector.
Compared with the prior art, the invention has the beneficial effects that: the technology of the invention ensures that the water module can be used for making hot water in winter, and creative refrigerating water is used for ground radiation refrigeration, thereby fundamentally solving the problems of noise and uncomfortableness of cold air blowing of the traditional air conditioner and improving the comfort level of users; meanwhile, the water temperature in ground radiation refrigeration is not required to be very low, so that the water outlet temperature is increased, the electric power energy consumption of an air conditioning system is reduced, and the energy is saved; the dehumidification of the indoor unit of the air conditioner is adopted in the radiation refrigeration process, and the dehumidification effect is better and the dehumidification speed is higher than that of a fan coil.
Drawings
FIG. 1 is a control flow chart of a radiation refrigeration method of a water-air conditioning unit with multiple water-air conditioning units with fluorine;
FIG. 2 is a schematic structural diagram of a split water module water-air conditioning unit with multiple water sources and water sources;
fig. 3 is a schematic structural diagram of an integrated water module water-air conditioning unit with multiple water sources.
The drawings are marked:
the outdoor unit 1, the water module 2, the indoor unit 3, the indoor wire controller 4, the floor heater 5, the floor temperature sensor 6, the indoor environment temperature sensor 7, the humidity sensor 8, the water pump 9, the electric two-way valve 10, the water collector 11 and the water separator 12.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. Based on the technical solutions of the present invention, all other embodiments obtained by a person skilled in the art without making any creative effort fall within the protection scope of the present invention.
Examples
Referring to fig. 1, the radiation refrigeration method of the air conditioning unit with multiple water and fluorine is provided in this embodiment: the method comprises the steps that a user inputs a target indoor temperature Ts, an air conditioning unit detects an actual indoor temperature Ta and an actual relative humidity RH, whether the actual indoor temperature Ta is larger than the target indoor temperature Ts is judged, if the actual indoor temperature is not larger than the target indoor temperature, a radiation refrigeration mode is not started, if the actual indoor temperature is larger than the target indoor temperature, whether the actual relative humidity RH is smaller than a set relative humidity RHs is continuously judged, if the actual relative humidity RH is smaller than the set relative humidity RHs, the air conditioner starts the radiation refrigeration mode, if the actual relative humidity RH is not smaller than the set relative humidity RHs, the air conditioner can simultaneously start a dehumidification mode, at the moment, the air conditioner continuously detects the actual relative humidity RH, whether RH < RHs-b is a humidity interval value, the value range of b is 0-10%, preferably 5%, if the actual indoor temperature is larger than the target indoor temperature, the air conditioner is closed in the dehumidification mode, and if the actual relative humidity RH is not smaller than the set relative humidity RHs, the air conditioner can continuously dehumidify. The radiation refrigeration mode refers to heat exchange between a water module of the air conditioning unit with the multiple water and the outdoor unit, and cooling circulating water in the water module and introducing the circulating water into the floor heating of a user. The dehumidification is completed by an indoor unit of the air conditioning unit with the multiple of the water and the fluorine.
The refrigerating mode of the air conditioning unit with multiple water and ground fluorine is changed from the traditional heat exchange of the indoor unit and the outdoor unit to cold air blowing indoors, and the mode is changed into the mode that the water module is used for refrigerating water and heating the indoor ground and introducing cold water, the mode that the ground is used for radiating to the ground, and the mode that the ground is used for radiating and refrigerating the indoor ground. The traditional water module refrigeration technology is for supplying cold water to the fan coil, and the indoor air is circulated through the fan coil to cool down, so that the ground radiation refrigeration of the embodiment is different from the traditional water module refrigeration technology, the ground radiation has no wind sense at all, the uncomfortable sense of cold air blowing to a human body can be avoided, the noise influence is avoided, and meanwhile, the ground radiation refrigeration water outlet temperature is generally higher than the water outlet temperature of the fan coil refrigeration, and the energy conservation performance is better. In addition, the ground radiation refrigeration is different from the dehumidification of other fan coils for the ground radiation refrigeration, but the dehumidification is performed by the air-conditioning indoor unit in the system, and the heat exchange temperature of the air-conditioning indoor unit is lower than that of the air-conditioning indoor unit in the fan coils, so that the dehumidification effect is better and faster. The method combines the advantages of energy conservation and comfort of ground radiation refrigeration and quick dehumidification of the indoor unit of the air conditioner, so that the user can refrigerate more comfortably, quietly and energy-effectively in summer.
After the air conditioning unit starts the radiation refrigeration mode, cold water is introduced into the floor heating of a user, and in order to prevent dew condensation caused by the fact that the temperature of the indoor floor is too low, the method further comprises a dew condensation prevention control mode:
the indoor wire controller of the air conditioning unit detects the actual indoor temperature Ta and the actual ground temperature Tf and calculates the dew point temperature Td under the current condition,
judging whether Ta > Ts-1, if so, further judging whether Tf < Td+a, a is a temperature interval value, the value range of a is 0-5 ℃, preferably 1 ℃, if so, closing the radiation refrigeration mode, further judging whether Tf > Td+a, preferably 1 ℃, if so, exiting the anti-condensation control mode.
After the air conditioning unit starts the radiation refrigeration mode, the real relative humidity RH in the room needs to be detected in real time to ensure that the humidity in the room is proper, and therefore, a continuous dehumidification mode is required:
the indoor wire controller of the air conditioning unit detects the actual relative humidity RH,
judging whether Ta is more than Ts-1, if so, further judging whether RH is more than RHs, wherein RHs refers to the set relative humidity, and if so, starting a dehumidification mode; the dehumidification is completed by an indoor unit of the air conditioning unit with the multiple of the water and the fluorine. Further judging whether RH < RHs-b, b is a humidity interval value, the value range of b is 0-10%, preferably 5%, if so, exiting the dehumidification mode. After the radiation refrigeration mode is started, the actual relative humidity is detected in real time, the humidity in the room is controlled in a proper range, and the effect of further preventing the ground from dewing is achieved. Because if the indoor humidity increases, the dew point temperature increases, and the ground temperature is relatively low, the condition that the ground temperature is lower than the dew point temperature to cause condensation easily occurs at the moment, and the humidity control plays a certain role in preventing the ground from condensation.
The method of the embodiment not only solves the problems of uncomfortable refrigeration and noise of the traditional air conditioning unit with the multiple water and the fluorine, but also further realizes intelligent control of indoor humidity of users, prevents condensation on the ground, and ensures comfort of the users and unaffected quality of the floor.
Referring to fig. 2 and 3, this embodiment further provides a water-air conditioning unit with multiple water-air conditioning units, including an outdoor unit 1, a water module 2, an indoor unit 3, an indoor wire controller 4, a floor heater 5, a floor temperature sensor 6, an indoor environment temperature sensor 7, and a humidity sensor 8, and fig. 1 shows three rooms, so that the indoor unit 3, the indoor wire controller 4, the floor heater 5, the floor temperature sensor 6, the indoor environment temperature sensor 7, and the humidity sensor 8 are respectively three, the water module 2 in fig. 2 and the outdoor unit 1 are in a split structure, the water module 2 in fig. 3 is integrated inside the outdoor unit 1, the water module 2 is connected with the floor heater 5 through a water circulation assembly, the water circulation assembly includes a water pump 9 and an electric two-way valve 10, and the electric two-way valve 10 are respectively disposed on the pipelines of the water module 2 and the floor heater 5, the outdoor unit 1 is respectively connected with the indoor unit 3 and the water module 2 through refrigerant circulation pipelines, and the indoor wire controller 4 is connected with the water module 2, the temperature sensor 7 and the humidity sensor 10 are respectively connected with the indoor temperature sensor 7 and the electric two-way valve 10.
Because the air conditioner of this embodiment serves three rooms simultaneously, the water circulation assembly includes water collector 11 and water knockout drum 12, the delivery port of water module 2 is through water knockout drum 12 connection ground heating 5, the return water mouth of water module 2 is through water collector 11 connection ground heating 5.
The system structures of the outdoor unit 1, the water module 2 and the indoor unit 3 in this embodiment are the same as those of the conventional water-air conditioning unit with multiple water sources, and will not be described again. The indoor unit 3 and the water module 2 are connected with a refrigerant pipeline of the outdoor unit 1, heat and cold generated by the refrigerant pipeline are used for heating and refrigerating, the water module 2 converts the heat and the cold of the refrigerant pipeline into hot water and cold water through a water side heat exchanger, and the hot water and the cold water are distributed to the floor heating 5 of each room through the water pump 9 and the water collector 11 for heating and radiation refrigerating of the floor heating 5.
When the air conditioning unit of the embodiment performs radiation refrigeration, the temperature in the room is detected in real time, and the water outlet temperature of the water module 2 is properly increased or decreased according to the change of the room temperature. Meanwhile, in order to avoid the condition that the water temperature is too low and the dew condensation occurs on the ground, the indoor wire controller 4 can detect the temperature and the humidity of a room in real time and continuously calculate the change water outlet temperature, if the humidity is high, the indoor unit 3 is firstly started to dehumidify, the indoor unit is closed after the humidity is reduced to a proper range, the water module 2 is started to radiate the refrigeration mode at the moment, and the floor temperature is ensured to be higher than the dew point temperature of the air so as to avoid the dew condensation on the ground. In the floor radiation refrigeration process, if the air humidity is high and dehumidification is needed, the indoor wire controller 4 can intermittently start the indoor unit 3 in the room to dehumidify through calculation, and the indoor unit 3 dehumidify and the water module 2 can operate simultaneously.
In summer, a user can operate the indoor wire controller 4 in each room to start a radiation refrigeration mode, the user sets the required room temperature, after receiving a refrigeration operation instruction, the indoor wire controller 4 calculates the water outlet temperature of the chilled water of the water module 2 by combining the indoor temperature and humidity data acquired by the indoor wire controller 4 with the room temperature set by the user, the circulating water in the water module 2 is cooled to the calculated water outlet temperature by heat exchange between the water module 2 and the outdoor unit 1, the indoor wire controller 4 simultaneously starts the electric two-way valve 10 of the room to be refrigerated, and cold water is introduced into the floor heating 5 of the user by the water pump 9 to perform radiation refrigeration. In the radiation refrigeration method, the actual indoor temperature Ta is acquired through an indoor environment temperature sensor 7, the indoor ground temperature Tf is acquired through a floor temperature sensor 6, and the actual relative humidity RH is acquired through a humidity sensor 8. The floor temperature sensor 6, the indoor environment temperature sensor 7 and the humidity sensor 8 transmit collected temperature and humidity data to the indoor wire controller 4, and the indoor wire controller 4 controls the indoor unit 3 to enter a dehumidification mode or the water module 2 to enter a radiation refrigeration mode and controls the on-off of the electric two-way valve 10.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (4)

1. A radiation refrigeration method of a solar energy, fluorine and ground water multi-connected air conditioning unit is characterized by comprising the following steps: the method comprises the steps that a user inputs a target indoor temperature Ts, an air conditioning unit detects an actual indoor temperature Ta, whether the actual indoor temperature Ta is larger than the target indoor temperature Ts or not is judged, if the actual indoor temperature Ta is larger than the target indoor temperature Ts, the air conditioning unit starts a radiation refrigeration mode, wherein the radiation refrigeration mode refers to heat exchange between a water module of the air conditioning unit with the outdoor unit, and circulating water in the water module is cooled and is led into floor heating of the user;
after the air conditioning unit starts the radiation refrigeration mode, cold water is introduced into the floor heating of a user, and in order to prevent dew condensation caused by the fact that the temperature of the indoor floor is too low, the method further comprises a dew condensation prevention control mode:
the indoor wire controller of the air conditioning unit detects the actual indoor temperature Ta and the indoor ground temperature Tf, calculates the dew point temperature Td under the current condition,
judging whether Ta is larger than Ts-1, if so, further judging whether Tf is smaller than Td+a, if so, stopping the radiation refrigeration mode, wherein a is a temperature interval value;
the exiting condition of the anti-condensation control mode is that Tf is more than Td+a, and a is a temperature interval value;
after the air conditioning unit starts the radiation refrigeration mode, the real relative humidity RH in the room needs to be detected in real time to ensure that the humidity in the room is proper, and the method further comprises a dehumidification mode:
the indoor wire controller of the solar energy, fluorine and ground water multi-connected air conditioning unit detects the actual relative humidity RH,
judging whether Ta is more than Ts-1, if so, further judging whether RH is more than RHs, wherein RHs refers to set relative humidity, if so, starting a dehumidification mode, wherein dehumidification is completed by an indoor unit of the water-air conditioning unit with the space and fluorine;
the exit condition of the dehumidification mode is RH < RHs-b, b is a humidity interval value;
the air conditioning unit can simultaneously start a dehumidification mode when the radiation refrigeration mode is started, and the dehumidification mode is started when the air conditioning unit is judged to meet RH > RHs after the dehumidification mode is judged to meet Ta > Ts;
the dehumidifying mode exit condition is that RH < RHs-b is satisfied, and b is a humidity interval value.
2. The solar-fluorine-earth water multi-connected air conditioning unit adopting the solar-fluorine-earth water multi-connected air conditioning unit radiation refrigeration method for radiation refrigeration according to claim 1, which is characterized in that: the indoor wire controller is in communication connection with a control board of the water module, and the floor temperature sensor, the indoor environment temperature sensor, the humidity sensor and the electric two-way valve are respectively in electric connection with the indoor wire controller.
3. The solar-fluorine-terrestrial-water multi-connected air conditioning unit according to claim 2, wherein: the indoor unit, the indoor wire controller, the floor heating, the floor temperature sensor, the indoor environment temperature sensor, the humidity sensor and the electric two-way valve are all provided with a plurality of valves, and the quantity of the valves is the same.
4. A space-fluorine-earth-water multi-connected air conditioning unit according to claim 3, characterized in that: the water circulation assembly comprises a water collector and a water separator, a water outlet of the water module is connected with the ground heating through the water separator, and a water return port of the water module is connected with the ground heating through the water collector.
CN202210842606.4A 2022-07-18 2022-07-18 Teflon-ground water multi-connected air conditioning unit and radiation refrigeration method thereof Active CN115247843B (en)

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