CN111059633A - Dehumidification method of air conditioning system - Google Patents
Dehumidification method of air conditioning system Download PDFInfo
- Publication number
- CN111059633A CN111059633A CN201911340828.0A CN201911340828A CN111059633A CN 111059633 A CN111059633 A CN 111059633A CN 201911340828 A CN201911340828 A CN 201911340828A CN 111059633 A CN111059633 A CN 111059633A
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- heat exchanger
- indoor
- air conditioning
- throttling element
- conditioning system
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 74
- 238000007791 dehumidification Methods 0.000 title claims abstract description 62
- 239000003507 refrigerant Substances 0.000 claims abstract description 71
- 238000004891 communication Methods 0.000 claims description 20
- 238000011144 upstream manufacturing Methods 0.000 claims description 8
- 230000005611 electricity Effects 0.000 abstract 1
- 238000001816 cooling Methods 0.000 description 7
- 238000005485 electric heating Methods 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 5
- 230000000414 obstructive Effects 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 229920002456 HOTAIR Polymers 0.000 description 1
- 230000001105 regulatory Effects 0.000 description 1
Classifications
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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
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0083—Indoor units, e.g. fan coil units with dehumidification means
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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
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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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
- F24F11/64—Electronic processing using pre-stored data
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
Abstract
The invention belongs to the technical field of air conditioning systems, and aims to solve the problems that an existing air conditioning system consumes a great amount of electricity during dehumidification and has potential safety hazards. The invention provides a dehumidification method of an air conditioning system, the air conditioning system comprises a first indoor heat exchanger, a second indoor heat exchanger, a first throttling element, a second throttling element, a compressor and an outdoor heat exchanger, the first indoor heat exchanger and the first throttling element are connected in series to form a first indoor refrigerant flow path, the second indoor heat exchanger and the second throttling element are connected in series to form a second indoor refrigerant flow path, the first indoor refrigerant flow path and the second indoor refrigerant flow path are arranged in parallel and are connected between the compressor and the outdoor heat exchanger, the dehumidification method comprises the following steps: the first throttling element is used for throttling the refrigerant flowing through the first throttling element; simultaneously, before or after this, the second restriction element is fully opened. The invention enables the air conditioning system to dehumidify at constant temperature during dehumidification, has low power consumption and high energy efficiency, improves user experience and ensures the safety of the air conditioning system.
Description
Technical Field
The invention belongs to the technical field of air conditioning systems, and particularly provides a dehumidification method of an air conditioning system.
Background
An air conditioning system is a system capable of adjusting the temperature of an indoor environment, and most air conditioning systems also have a dehumidification function, and the humidity of the indoor environment can be reduced by dehumidification of the air conditioning system.
The dehumidification of the air conditioning system is temperature-variable dehumidification, namely, the indoor wet bulb is reduced while the indoor dry bulb temperature is reduced. When the set temperature is reached (the set temperature is the dry-bulb temperature), the air conditioning system is automatically stopped, and the dehumidification cannot be continued. When indoor dry bulb temperature is lower or user set temperature is higher and humidity is very big, want to reduce humidity and can only dehumidify through reducing the set temperature, dehumidification effect is not good, and user experience is also not good. Therefore, the dehumidification method reduces the humidity of the indoor environment and also inevitably reduces the temperature of the indoor environment.
Among the prior art, generally set up electric heating wire in air outlet department of air conditioning system's indoor set casing, when opening the dehumidification mode, the system normally refrigerates, and electric heating wire also heats of working this moment, and then reaches the effect of constant temperature dehumidification, but this mode needs compressor and electric heating wire simultaneous working, and power consumption is very big and the efficiency is low, and there is the potential safety hazard on the indoor heat exchanger condensate water can partly blow electric heating wire when air conditioning system dehumidifies moreover.
Therefore, there is a need in the art for a new dehumidification method of an air conditioning system to solve the above problems.
Disclosure of Invention
In order to solve the above problems in the prior art, that is, to solve the problems of the prior air conditioning system that the power consumption is very large and the potential safety hazard exists during dehumidification, the invention provides a dehumidification method of an air conditioning system, the air conditioning system comprises an indoor machine shell, a first indoor heat exchanger, a second indoor heat exchanger, a first throttling element, a second throttling element, a compressor and an outdoor heat exchanger, the first indoor heat exchanger and the second indoor heat exchanger are both arranged in the indoor machine shell and along the flow direction of air in the indoor machine shell, the first indoor heat exchanger is positioned at the upstream side of the second indoor heat exchanger, the first indoor heat exchanger and the first throttling element are connected in series to form a first indoor refrigerant flow path, the second indoor heat exchanger and the second throttling element are connected in series to form a second indoor refrigerant flow path, the first indoor refrigerant flow path and the second indoor refrigerant flow path are mutually connected in parallel and are both connected between the compressor and the outdoor heat exchanger, the dehumidification method comprises the following steps: the first throttling element is used for throttling the refrigerant flowing through the first throttling element; the second throttling element is fully opened while, before or after the first throttling element is made to throttle the refrigerant flowing therethrough.
In a preferred embodiment of the above dehumidification method, the dehumidification method further comprises: acquiring the running time of the air conditioning system executing the current dehumidification mode; and if the running time reaches the set time, completely closing the second throttling element, maintaining the preset time and then completely opening the second throttling element.
In a preferred technical scheme of the dehumidification method, the first indoor heat exchanger is arranged close to an air inlet of the indoor unit shell.
In a preferred embodiment of the above dehumidification method, the second indoor heat exchanger is disposed near an air outlet of the indoor unit casing.
In a preferred embodiment of the dehumidification method, the air conditioning system further includes a first three-way valve, a first communication port of the first three-way valve is communicated with the outdoor heat exchanger, and a second communication port and a third communication port of the first three-way valve are respectively communicated with the first indoor refrigerant flow path and the second indoor refrigerant flow path.
In a preferred embodiment of the dehumidification method, the air conditioning system further includes a second three-way valve, a first communication port of the second three-way valve is communicated with the compressor, and a second communication port and a third communication port of the second three-way valve are respectively communicated with the first indoor refrigerant flow path and the second indoor refrigerant flow path.
In a preferred embodiment of the dehumidification method, the first throttling element is a first electronic expansion valve.
In a preferred embodiment of the dehumidification method, the second throttling element is a second electronic expansion valve.
As can be understood by those skilled in the art, in a preferred embodiment of the present invention, the heat exchangers of the indoor unit are a first indoor heat exchanger and a second indoor heat exchanger, the first indoor heat exchanger is disposed on the upstream side of the second indoor heat exchanger along the air flowing direction in the casing of the indoor unit, and the refrigerants flowing into the first indoor heat exchanger and the second indoor heat exchanger are respectively regulated by a first throttling element and a second throttling element, when the air conditioning system dehumidifies, the first throttling element throttles the refrigerant flowing therethrough, the first indoor heat exchanger performs cooling and dehumidifying as an evaporator, that is, air flowing through the surface of the first indoor heat exchanger is cooled and dehumidified, the second throttling element is fully opened, so that the refrigerant passes through without throttling, the second indoor heat exchanger performs heating as a condenser, that is, air flowing through the surface of the second indoor heat exchanger is heated, that is to say, when the air in the indoor set casing passes through first indoor heat exchanger and second indoor heat exchanger in proper order, can be earlier by cooling and dehumidification, is heated up again to realize constant temperature dehumidification, accomplish indoor dehumidification promptly under the unchangeable condition of indoor ambient temperature. Compared with the technical scheme that the electric heating wire is arranged at the air outlet of the indoor unit in the prior art, the air conditioning system has the advantages that the power consumption is low during dehumidification, the energy efficiency is high, the potential safety hazard that condensed water of the indoor unit is blown onto the electric heating wire is avoided, the user experience is improved, and meanwhile the safety of the air conditioning system is guaranteed.
Furthermore, after the air conditioning system is dehumidified and operated for a period of time, due to the influence of the pressure of the refrigerant flow path, excessive refrigerants flow through the second throttling element, and only a small amount of refrigerants or no refrigerants flow through the first throttling element, so that the second throttling element can be completely closed when the dehumidifying operation duration of the air conditioning system reaches a set duration, all the refrigerants flow through the first throttling element at the moment, the air conditioning system is enabled to be refrigerated and operated for a period of time (at the moment, dehumidification can still be performed but the indoor environment temperature is slightly reduced), then the second throttling element is completely opened, the air conditioning system performs constant temperature dehumidification again, and therefore smooth dehumidification of the air conditioning system is guaranteed.
Drawings
Fig. 1 is a schematic view of the structure of an air conditioning system of the present invention.
Detailed Description
Preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention.
It should be noted that the terms "first" and "second" in the description of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "disposed," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Based on the problems that the power consumption of an existing air conditioning system is extremely large and potential safety hazards exist during dehumidification of the existing air conditioning system, the invention provides a dehumidification method of the air conditioning system, and aims to enable the air conditioning system to be capable of dehumidifying at a constant temperature during dehumidification, the power consumption is low, the energy efficiency is improved, and the safety of the air conditioning system is guaranteed while the user experience is improved.
Specifically, as shown in fig. 1, the air conditioning system of the present invention includes an indoor unit casing, a first indoor heat exchanger 1, a second indoor heat exchanger 2, a first throttling element 3, a second throttling element 4, a compressor 5, and an outdoor heat exchanger 6, wherein the first indoor heat exchanger 1 and the second indoor heat exchanger 2 are both disposed in the indoor unit casing and along a flow direction of air in the indoor unit casing, the first indoor heat exchanger 1 is located on an upstream side of the second indoor heat exchanger 2, the first indoor heat exchanger 1 and the first throttling element 3 are connected in series to form a first indoor refrigerant flow path, the second indoor heat exchanger 2 and the second throttling element 4 are connected in series to form a second indoor refrigerant flow path, and the first indoor refrigerant flow path and the second indoor refrigerant flow path are disposed in parallel to each other and are both connected between the compressor 5 and the outdoor heat exchanger 6. In the above, the first throttling element 3 is located on the upstream side of the first indoor heat exchanger 1, and the second throttling element 4 is located on the upstream side of the second indoor heat exchanger 2 in the refrigerant flow direction of the cooling or dehumidifying operation of the air conditioning system. In the above description, the first throttling element 3 may be an electronic expansion valve, and similarly, the second throttling element 4 may also be an electronic expansion valve, but in practical applications, the first throttling element 3 and the second throttling element 4 may also be other throttling regulation valves capable of realizing opening degree changes, wherein the opening degree change of the second throttling element 4 needs to satisfy the transition from 0 to full opening. Those skilled in the art can flexibly set the specific structure of the first throttling element 3 and the second throttling element 4 in practical application as long as the throttling can be realized by the first throttling element 3 and the full opening, the full closing and the throttling can be realized by the second throttling element 4. In the present invention, the full opening of the second throttling element 4 means that the second throttling element 4 allows the refrigerant to pass through without any obstruction, the full closing of the second throttling element 4 means that the second throttling element 4 does not allow the refrigerant to pass through at all, and the throttling of the second throttling element 4 means that the second throttling element 4 allows the refrigerant to pass through with obstruction (i.e., throttled flow).
Preferably, first indoor heat exchanger 1 is close to the air intake setting of indoor set casing, and the fan in the indoor set casing can be with indoor air from the air intake introduction when rotating to just pass through first indoor heat exchanger 1's surface when making the air just get into the indoor set casing, thereby make the air carry out the heat exchange with the refrigerant in first indoor heat exchanger 1, improve heat exchange efficiency.
Preferably, the second indoor heat exchanger 2 is disposed close to an air outlet of the indoor unit casing, and a fan in the indoor unit casing can blow out air in the indoor unit casing from the air outlet when rotating, so that the air in the indoor unit casing can be blown out from the air outlet immediately after passing through the surface of the second indoor heat exchanger 2, and the phenomenon that a lot of condensed water is generated in the indoor unit casing when an air conditioning system dehumidifies or heats the indoor unit casing, and the use experience of a user is affected is avoided.
Preferably, the air conditioning system further includes a first three-way valve 7, a first communication port of the first three-way valve 7 is communicated with the outdoor heat exchanger 6, and a second communication port and a third communication port of the first three-way valve 7 are respectively communicated with the first indoor refrigerant flow path and the second indoor refrigerant flow path. Specifically, along the flow direction of the refrigerant in the cooling or dehumidifying operation of the air conditioning system, the first three-way valve 7 is located on the upstream side of the first throttling element 3 and the second throttling element 4 (i.e., on the downstream side of the outdoor heat exchanger 6), the first three-way valve 7 may be a normal-temperature valve or a three-way solenoid valve capable of being controlled to open and close by a controller of the air conditioning system, and a person skilled in the art may flexibly select a specific type of the first three-way valve 7 in practical application, as long as the first three-way valve 7 can distribute the refrigerant flowing from the outdoor heat exchanger 6 to the first indoor refrigerant flow path and the second indoor refrigerant flow path in the cooling or dehumidifying operation of the air conditioning system, and converge the refrigerant flowing from the first throttling element 3 and the second throttling element 4 to the outdoor heat exchanger 6 in the heating operation of the air conditioning system.
Preferably, the air conditioning system further includes a second three-way valve 8, a first communication port of the second three-way valve 8 is communicated with the compressor 5, and a second communication port and a third communication port of the second three-way valve 8 are respectively communicated with the first indoor refrigerant flow path and the second indoor refrigerant flow path. Specifically, along the refrigerant flowing direction of the air conditioning system during the cooling or dehumidifying operation, the second three-way valve 8 is located at the downstream side of the first indoor heat exchanger 1 and the second indoor heat exchanger 2 (i.e., the upstream side of the compressor 5), and the second three-way valve 8 may be a normal-temperature valve or a three-way solenoid valve capable of being controlled to open and close by a controller of the air conditioning system, and a person skilled in the art may flexibly select a specific type of the second three-way valve 8 in practical application, as long as the second three-way valve 8 can converge the refrigerant flowing from the first indoor heat exchanger 1 and the second indoor heat exchanger 2 to the compressor 5 during the cooling or dehumidifying operation of the air conditioning system and divert the refrigerant flowing from the compressor 5 to the first indoor refrigerant flow path and the second indoor refrigerant flow path during the heating operation of the air conditioning.
The dehumidification method of the invention comprises the following steps: the first throttling element 3 is used for throttling the refrigerant flowing through the first throttling element; the second throttling element 4 is fully opened at the same time as, before or after the first throttling element 3 is made to throttle the refrigerant flowing therethrough. Wherein, the first throttle element 3 can throttle the refrigerant flowing through the first throttle element to make the first indoor heat exchanger 1 as an evaporator, the evaporator can refrigerate and dehumidify the air flowing through the surface of the evaporator, the air in the indoor machine shell can be changed into dry cold air from humid air after passing through the evaporator, the second throttle element 4 is completely opened to make the second indoor heat exchanger 2 as a condenser, the condenser can heat the air flowing through the surface of the condenser, the air passing through the surface of the first indoor heat exchanger 1 (namely the evaporator) in the indoor machine shell passes through the surface of the second indoor heat exchanger 2 (namely the condenser) and then is changed into dry hot air from dry cold air, namely, from the temperature point of view, the air sequentially passes through the first indoor heat exchanger 1 and the second indoor heat exchanger 2 to be subjected to air temperature reduction and then rise, so that the temperature of the air entering the air inlet of the indoor machine shell and the temperature of the air flowing out from the air outlet of the indoor machine shell are respectively increased The air passes through the first indoor heat exchanger 1 and the second indoor heat exchanger 2 in sequence and only undergoes humidity reduction from the viewpoint of humidity, constant-temperature dehumidification can be realized by the dehumidification method, and the outdoor heat exchanger 6 is used as a condenser in the dehumidification process of the air conditioning system. When the air conditioning system dehumidifies, the complete opening timing of the second throttling element 4 may be when the first throttling element 3 throttles the refrigerant, or before or after the first throttling element 3 throttles the refrigerant, and when the complete opening timing of the second throttling element 4 is before or after the first throttling element 3 throttles the refrigerant, the action timings of the first throttling element 3 and the second throttling element 4 may differ by 1 second, 2 seconds, or other times, and those skilled in the art may flexibly set the action timings of the first throttling element 3 and the second throttling element 4 in combination with specific use scenarios in practical applications.
The dehumidification method of the present invention further comprises: acquiring the running time of the air conditioning system executing the current dehumidification mode; if the operating period reaches the set period, the second throttling element 4 is completely closed and is completely opened after the preset time is maintained. Because of the influence of the pressure of the refrigerant flow path in the dehumidification process of the air conditioning system, after long-time dehumidification operation, the refrigerant flowing out of the outdoor heat exchanger 6 can excessively flow through the second throttling element 4 (because the second throttling element 4 completely has no obstruction to the refrigerant), so that a small amount of refrigerant or even no refrigerant flows through the first throttling element 3, the first throttling element 3 can not be throttled, the air conditioning system can not perform dehumidification, at the moment, the second throttling element 4 can be completely closed, the refrigerant flowing out of the outdoor heat exchanger 6 can completely flow through the first throttling element 3, the first throttling element 3 throttles again, the air conditioning system can continuously perform refrigeration and dehumidification only through the first indoor heat exchanger 1, at the moment, the indoor environment temperature slightly drops, and after the preset time (namely after the influence of the pressure of the refrigerant flow path is reduced), the second throttling element 4 is completely opened, constant temperature dehumidification is carried out again through first indoor heat exchanger 1 and second indoor heat exchanger 2 this moment to can adjust the indoor ambient temperature that will have the earlier room ambient temperature to descend a little through the aperture of first throttling element 3 and compensate back, thereby make air conditioning system accomplish constant temperature dehumidification, avoid influencing user's use because the large amplitude fluctuation of indoor ambient temperature and experience. In the above description, the set time period may be 10 minutes or 15 minutes, the preset time period may be 1 minute or 2 minutes, and those skilled in the art may flexibly set the specific values of the set time period and the preset time period in practical applications, and such adjustment and change of the specific values of the set time period and the preset time period do not limit the present invention, and should be limited within the protection scope of the present invention. In addition, in the above, the second throttling element 4 may be completely closed for a preset time at intervals and then completely opened, that is, when the air conditioning system is in dehumidification operation, the second indoor heat exchanger 2 of the air conditioning system is closed for a preset time after being operated for a certain time, so as to ensure continuous dehumidification of the air conditioning system.
When the air conditioning system of the invention is in refrigeration or heating operation, the first throttling element 3 is used for throttling the refrigerant flowing through the first throttling element, the second throttling element 4 is used for throttling the refrigerant flowing through the second throttling element, when the air conditioning system is in refrigeration, the first indoor heat exchanger 1 and the second indoor heat exchanger 2 are both used as evaporators, the outdoor heat exchanger 6 is used as a condenser, when the air conditioning system is in heating, the first indoor heat exchanger 1 and the second indoor heat exchanger 2 are both used as condensers, and the outdoor heat exchanger 6 is used as an evaporator.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
Claims (8)
1. A dehumidification method of an air conditioning system, characterized in that the air conditioning system comprises an indoor unit casing, a first indoor heat exchanger, a second indoor heat exchanger, a first throttling element, a second throttling element, a compressor and an outdoor heat exchanger, the first indoor heat exchanger and the second indoor heat exchanger are both arranged in the indoor unit casing and along the flow direction of air in the indoor unit casing, the first indoor heat exchanger is positioned at the upstream side of the second indoor heat exchanger,
the first indoor heat exchanger and the first throttling element are connected in series to form a first indoor refrigerant flow path, the second indoor heat exchanger and the second throttling element are connected in series to form a second indoor refrigerant flow path, the first indoor refrigerant flow path and the second indoor refrigerant flow path are mutually connected in parallel and are connected between the compressor and the outdoor heat exchanger,
the dehumidification method comprises the following steps:
the first throttling element is used for throttling the refrigerant flowing through the first throttling element;
the second throttling element is fully opened while, before or after the first throttling element is caused to throttle the refrigerant flowing therethrough.
2. The dehumidification method of an air conditioning system according to claim 1, further comprising:
acquiring the running time of the air conditioning system executing the current dehumidification mode;
and if the running time reaches the set time, completely closing the second throttling element, maintaining the preset time and then completely opening the second throttling element.
3. A method of dehumidifying air conditioning system as set forth in claim 1 wherein said first indoor heat exchanger is disposed adjacent to an air intake of said indoor unit casing.
4. A dehumidification method for an air conditioning system according to claim 1, wherein said second indoor heat exchanger is disposed adjacent to an air outlet of said indoor unit casing.
5. The dehumidification method of an air conditioning system according to claim 1, further comprising a first three-way valve having a first communication port communicating with the outdoor heat exchanger, and a second communication port and a third communication port communicating with the first indoor refrigerant flow path and the second indoor refrigerant flow path, respectively.
6. The dehumidification method of an air conditioning system according to claim 1, further comprising a second three-way valve, wherein a first communication port of the second three-way valve is in communication with the compressor, and a second communication port and a third communication port of the second three-way valve are in communication with the first indoor refrigerant flow path and the second indoor refrigerant flow path, respectively.
7. The dehumidification method of an air conditioning system according to any one of claims 1 to 6, wherein the first throttle element is a first electronic expansion valve.
8. The dehumidification method of an air conditioning system according to any one of claims 1 to 6, wherein the second throttling element is a second electronic expansion valve.
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| CN201911340828.0A CN111059633A (en) | 2019-12-23 | 2019-12-23 | Dehumidification method of air conditioning system |
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| CN201911340828.0A CN111059633A (en) | 2019-12-23 | 2019-12-23 | Dehumidification method of air conditioning system |
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| CN112856775A (en) * | 2021-02-02 | 2021-05-28 | 青岛海尔空调器有限总公司 | Control method of air conditioner with indoor unit provided with double heat exchangers and air conditioner |
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| CN110398048B (en) * | 2019-07-23 | 2022-11-22 | 广东美的暖通设备有限公司 | Air conditioning system, air conditioning control method, air conditioning control device, and storage medium |
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| CN110398048B (en) * | 2019-07-23 | 2022-11-22 | 广东美的暖通设备有限公司 | Air conditioning system, air conditioning control method, air conditioning control device, and storage medium |
| CN112856775A (en) * | 2021-02-02 | 2021-05-28 | 青岛海尔空调器有限总公司 | Control method of air conditioner with indoor unit provided with double heat exchangers and air conditioner |
| CN113834188A (en) * | 2021-09-16 | 2021-12-24 | 珠海格力电器股份有限公司 | Control device and method of air conditioning system and air conditioning system |
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