CN111947237A - Air conditioning system, dehumidification control method and device - Google Patents
Air conditioning system, dehumidification control method and device Download PDFInfo
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- CN111947237A CN111947237A CN202010779926.0A CN202010779926A CN111947237A CN 111947237 A CN111947237 A CN 111947237A CN 202010779926 A CN202010779926 A CN 202010779926A CN 111947237 A CN111947237 A CN 111947237A
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- 238000007791 dehumidification Methods 0.000 title claims abstract description 278
- 238000004378 air conditioning Methods 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims abstract description 33
- 230000008929 regeneration Effects 0.000 claims abstract description 51
- 238000011069 regeneration method Methods 0.000 claims abstract description 51
- 238000010438 heat treatment Methods 0.000 claims description 15
- 238000001816 cooling Methods 0.000 claims description 11
- 238000004590 computer program Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 9
- 239000000243 solution Substances 0.000 description 202
- 238000005057 refrigeration Methods 0.000 description 12
- 230000006870 function Effects 0.000 description 10
- 230000008859 change Effects 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 239000007788 liquid Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000011084 recovery Methods 0.000 description 5
- 239000003507 refrigerant Substances 0.000 description 4
- 238000007711 solidification Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 2
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910001507 metal halide Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
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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
- F24F1/0035—Indoor units, e.g. fan coil units characterised by introduction of outside air to the room
-
- 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
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
-
- 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
-
- 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
-
- 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
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
-
- 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
- F25B13/00—Compression machines, plants or systems, with reversible cycle
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Thermal Sciences (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Drying Of Gases (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses an air conditioning system, a dehumidification control method and a dehumidification control device. Wherein, this air conditioning system includes: the system comprises an outdoor heat exchanger, an indoor heat exchanger and a solution dehumidification circulating pipeline; the regeneration section in the solution dehumidification circulating pipeline is arranged at the air outlet of the outdoor heat exchanger, and the dehumidification solution exchanges heat with the air outlet of the outdoor heat exchanger when flowing through the regeneration section; the dehumidification section in the solution dehumidification circulating pipeline is arranged at the air inlet of the indoor heat exchanger, and when the dehumidification solution flows through the dehumidification section, the dehumidification solution exchanges heat with fresh air to be fed into the indoor heat exchanger. According to the invention, the solution dehumidification circulation pipeline is arranged in the air conditioning system, the fresh air function is increased, the heat of the outdoor heat exchanger is recovered by utilizing the heat of the solution dehumidification circulation pipeline, the fresh air is dehumidified, the dehumidified fresh air is provided indoors, and the indoor humidity load is reduced, so that the independent control of the humidity of the air conditioner is realized, the indoor temperature is not changed in the dehumidification process, the comfort of a user is ensured, the structure is simple, and the implementation is easy.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to an air conditioning system, a dehumidification control method and a dehumidification control device.
Background
At present, the dehumidification function of air conditioner is mainly through opening the refrigeration mode, and humid air temperature can descend by a wide margin behind the evaporimeter, and when the humidity of air was in a supersaturated state, unnecessary vapor will appear with the form of comdenstion water, condenses on the fin of evaporimeter, and the drain pipe through the air conditioner water collector is outdoor with the comdenstion water discharge to reach the effect of dehumidification.
Although the traditional dehumidification mode realized by the refrigeration cycle achieves the dehumidification effect, the indoor temperature is greatly reduced, and the comfort of the user is seriously affected. The conventional air conditioning system adopts a condensation dehumidification method, and air needs to be cooled to a dew point temperature (lower than the indoor air supply temperature) and then reheated, so that reheating loss is caused. Secondly, in order to provide a lower refrigerant temperature (the temperature of the chilled water is typically 7 ℃), the refrigerator has to lower the evaporation temperature and hence the efficiency of the refrigerator is also reduced. In addition, due to the presence of the condensed water, a hotbed where various molds grow is formed on the surface of the evaporator, deteriorating the indoor air quality.
Aiming at the problem that dehumidification in the prior art can cause the indoor temperature to be greatly reduced, an effective solution is not provided at present.
Disclosure of Invention
The embodiment of the invention provides an air conditioning system, a dehumidification control method and a dehumidification control device, which are used for at least solving the problem that the indoor temperature is greatly reduced due to dehumidification in the prior art.
In order to solve the above technical problem, an embodiment of the present invention provides an air conditioning system, including an outdoor heat exchanger and an indoor heat exchanger, the air conditioning system further including: a solution dehumidification circulation line;
a regeneration section in the solution dehumidification circulating pipeline is arranged at the air outlet of the outdoor heat exchanger, and the dehumidification solution exchanges heat with the air outlet of the outdoor heat exchanger when flowing through the regeneration section;
the dehumidification section in the solution dehumidification circulation pipeline is arranged at the air inlet of the indoor heat exchanger, and the dehumidification solution flows through the dehumidification section and exchanges heat with fresh air to be fed into the indoor heat exchanger.
Optionally, the air conditioning system further includes: the air outlet of the fresh air duct is connected to the air inlet of the indoor heat exchanger; the dehumidification section is arranged in the fresh air duct.
Optionally, the air conditioning system further includes: the fresh air fan is arranged in the fresh air duct.
Optionally, the solution dehumidification circulation pipeline is provided with first fins and/or second fins, the regeneration section is embedded in the first fins, and the dehumidification section is embedded in the second fins.
Optionally, a first solution tank and/or a second solution tank are/is communicated with a pipeline between the regeneration section and the dehumidification section.
Optionally, if a first solution tank and a second solution tank are provided at the same time, the first solution tank and the second solution tank are respectively located at two sides of the regeneration section.
Optionally, a circulation pump is arranged on the solution dehumidification circulation pipeline.
Optionally, the number of the solution dehumidification circulation pipelines is 1 or 2, if the number is 2, the dehumidification solutions in the 2 solution dehumidification circulation pipelines are different, one of the solution dehumidification circulation pipelines is used for dehumidifying in the refrigeration mode, and the other solution dehumidification circulation pipeline is used for dehumidifying in the heating mode.
The embodiment of the invention also provides a dehumidification control method, which is applied to the air conditioning system in the embodiment of the invention and comprises the following steps:
receiving a dehumidification instruction;
and controlling the dehumidification solution in the solution dehumidification circulating pipeline to flow according to the dehumidification instruction, so that the dehumidification solution exchanges heat with the air outlet of the outdoor heat exchanger when flowing through the regeneration section, and exchanges heat with the fresh air to be fed into the indoor heat exchanger when flowing through the dehumidification section.
Optionally, controlling the dehumidifying solution in the solution dehumidifying circulation pipeline to flow according to the dehumidifying instruction includes: and responding to the dehumidification instruction, controlling the fresh air to flow to the indoor heat exchanger and starting a circulating pump on the solution dehumidification circulating pipeline.
Optionally, if the number of solution dehumidification circulation pipeline is 2, according to dehumidification instruction control solution in the solution dehumidification circulation pipeline flows, include:
acquiring a current operation mode of the air conditioning system;
determining a solution dehumidification circulating pipeline to be used according to the current operation mode;
and controlling the flow of the dehumidifying solution in the solution dehumidifying circulation pipeline to be used.
The embodiment of the invention also provides a dehumidification control device, which is applied to the air conditioning system in the embodiment of the invention and comprises the following components:
the receiving module is used for receiving a dehumidification instruction;
and the control module is used for controlling the dehumidification solution in the solution dehumidification circulating pipeline to flow according to the dehumidification instruction, so that the dehumidification solution exchanges heat with the air outlet of the outdoor heat exchanger when flowing through the regeneration section, and exchanges heat with the fresh air to be fed into the indoor heat exchanger when flowing through the dehumidification section.
Embodiments of the present invention also provide a computer-readable storage medium, on which a computer program is stored, where the computer program, when executed by a processor, implements a dehumidification control method according to an embodiment of the present invention.
By applying the technical scheme of the invention, the solution dehumidification circulating pipeline is arranged in the air conditioning system, and the dehumidification solution exchanges heat with the air outlet of the outdoor heat exchanger when flowing through the regeneration section by utilizing the regeneration section arranged at the air outlet of the outdoor heat exchanger in the circulating pipeline, so that the regeneration of the dehumidification solution is realized; the dehumidification section arranged at the air inlet of the indoor heat exchanger in the circulating pipeline is utilized, so that heat exchange is carried out between the dehumidification section and fresh air to be introduced into the indoor heat exchanger when the dehumidification solution flows through the dehumidification section, and the fresh air is dehumidified. Increase the new trend function on air conditioning system, utilize solution dehumidification circulating line heat recovery outdoor heat exchanger's heat, realize the dehumidification of new trend, to the indoor fresh air gas that provides after the dehumidification, reduce indoor wet load to realize the humidity independent control of air conditioner, the dehumidification process can not lead to indoor temperature to change, guarantees user's travelling comfort, simple structure, easily implementation.
Drawings
Fig. 1 is a schematic structural diagram of an air conditioning system according to a first embodiment of the present invention;
FIG. 2 is a partial schematic view of a solution dehumidification cycle pipeline according to an embodiment of the present invention;
fig. 3 is a specific schematic diagram of an air conditioning system according to a first embodiment of the present invention;
fig. 4 is a flowchart of a dehumidification control method according to a second embodiment of the present invention;
fig. 5 is a block diagram of a dehumidification control apparatus according to a third embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings, and it is apparent that the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
The embodiment provides an air conditioning system, can realize the humidity independent control of air conditioner, can not guarantee user's travelling comfort because the dehumidification leads to the room temperature to change.
Fig. 1 is a schematic structural diagram of an air conditioning system according to a first embodiment of the present invention, and as shown in fig. 1, the air conditioning system includes: an outdoor heat exchanger 10, an indoor heat exchanger 20, and a solution dehumidifying circulation line 30.
The regeneration section 31 in the solution dehumidification circulating pipeline is arranged at the air outlet of the outdoor heat exchanger, the dehumidification solution exchanges heat with the air outlet of the outdoor heat exchanger when flowing through the regeneration section, and the heat of the outdoor heat exchanger is utilized to realize the regeneration of the dehumidification solution. The dehumidification section 32 in the solution dehumidification circulating pipeline is arranged at the air inlet of the indoor heat exchanger, the dehumidification solution flows through the dehumidification section and the fresh air to be introduced into the indoor heat exchanger for heat exchange, and the dehumidified fresh air is supplied to the indoor through the indoor heat exchanger. In fig. 1, the solid line arrow represents the outlet air of the outdoor heat exchanger, and the dotted line arrow represents the inlet air of the indoor heat exchanger.
The solution dehumidification circulating pipeline is a closed circulating loop, the dehumidification solution flows in the circulating loop, and the regeneration and dehumidification of the dehumidification solution are realized by heat exchange. The regeneration section and the dehumidification section in the solution dehumidification circulating pipeline are defined according to the heat exchange condition of the circulating pipeline and wind, the regeneration section refers to the part of pipelines through which the dehumidification solution can exchange heat with the air outlet of the outdoor heat exchanger, and the dehumidification section refers to the part of pipelines through which the dehumidification solution can exchange heat with the fresh air to be fed into the indoor heat exchanger.
The dehumidifying solution is a material with strong hygroscopicity and has regeneration property. Considering the chemical property of dehumidification solution, some solutions are heating solidification, and some solutions are cooling solidification, consequently can circulate dehumidification in order to guarantee the dehumidification solution, can select suitable dehumidification solution according to the concrete operating mode demand of dehumidification. For example, dehumidification is required in a cooling mode, and the outdoor heat exchanger blows hot air in the cooling mode, so that the dehumidification solution which is heated and solidified is preferably selected, and the heat of the outdoor heat exchanger can be used for heating the dehumidification solution, so that the dehumidification solution can be regenerated to continue dehumidification.
In the embodiment, a solution dehumidification circulating pipeline is arranged in an air conditioning system, and a regeneration section arranged at the air outlet position of an outdoor heat exchanger in the circulating pipeline is utilized, so that the dehumidification solution exchanges heat with the air outlet of the outdoor heat exchanger when flowing through the regeneration section, and the regeneration of the dehumidification solution is realized; the dehumidification section arranged at the air inlet of the indoor heat exchanger in the circulating pipeline is utilized, so that heat exchange is carried out between the dehumidification section and fresh air to be introduced into the indoor heat exchanger when the dehumidification solution flows through the dehumidification section, and the fresh air is dehumidified. Increase the new trend function on air conditioning system, utilize solution dehumidification circulating line heat recovery outdoor heat exchanger's heat, realize the dehumidification of new trend, to the indoor fresh air gas that provides after the dehumidification, reduce indoor wet load to realize the humidity independent control of air conditioner, the dehumidification process can not lead to indoor temperature to change, guarantees user's travelling comfort. The embodiment realizes the functions of fresh air introduction and independent dehumidification, and has simple structure and easy implementation.
And, the non-contact mode is adopted to this embodiment, utilizes circulation pipeline heat conduction to carry out the heat transfer of dehumidification solution and wind, realizes the dense knot and the dilution of dehumidification solution, can avoid dehumidification solution and wind contact, leads to the dehumidification solution to be blown away by wind.
The air conditioning system further includes: the air outlet of the fresh air duct is connected to the air inlet of the indoor heat exchanger; the dehumidification section is arranged in the fresh air duct. When the dehumidification section is flowed through to dehumidification solution, carry out the heat transfer with the new trend in the new trend wind channel, the moisture in the dehumidification solution absorption new trend, the new trend after the dehumidification gets into in the indoor heat exchanger. Specifically, the dehumidification section pipeline may refer to the width setting of the fresh air duct, for example, the dehumidification section pipeline is set to match the diameter of the fresh air duct, so as to perform dehumidification more sufficiently. The dehumidification solution in the dehumidification section in the fresh air duct absorbs the moisture of the fresh air, so that the dehumidification can be fully performed, and the dehumidification effect can be improved as much as possible.
Further, the air conditioning system further includes: and the fresh air fan is arranged in the fresh air duct and used for introducing fresh air into the fresh air duct, so that the introduction of the fresh air is facilitated.
In an alternative embodiment, the solution dehumidification circulation pipeline is provided with first fins and/or second fins, the regeneration section is embedded in the first fins, and the dehumidification section is embedded in the second fins. Referring to fig. 2, which is a partial schematic view of a solution dehumidification circulation pipeline, solid arrows represent outlet air of an outdoor heat exchanger, dashed arrows represent a flowing direction of a dehumidification solution in the solution dehumidification circulation pipeline, a dilute solution flows from a first solution tank 34 to a regeneration section, the regeneration section is embedded in fins 33, the outlet air of the outdoor heat exchanger blows on the fins, heat of the air is transferred to the fins, and the fins and the regeneration section conduct heat so that the dehumidification solution in the regeneration section becomes a concentrated solution and flows into a second solution tank 35.
This embodiment sets up the fin, can increase heat transfer area for the dehumidification solution in fin and the pipeline realizes heat transfer through the heat conduction better. By utilizing the first fins, the dehumidifying solution in the solution dehumidifying circulating pipeline can more fully absorb the heat of the air outlet of the outdoor heat exchanger at the regeneration section, and the solution regeneration efficiency is improved. By utilizing the second fins, the dehumidifying solution in the solution dehumidifying circulating pipeline can absorb the moisture of fresh air more fully in the dehumidifying section, and a better dehumidifying effect is ensured.
In an alternative embodiment, a first solution tank 34 and/or a second solution tank 35 are provided in communication on the conduit between the regeneration section and the dehumidification section. The first solution tank and the second solution tank are communicated with the pipeline and used for storing the dehumidifying solution, and the dehumidifying solution is prevented from being stored in the pipeline under the condition of non-dehumidification, so that the refrigerating or heating function is influenced. The required solution tank can be specifically set according to specific requirements.
If a first solution tank and a second solution tank are provided at the same time, the first solution tank and the second solution tank are respectively located at both sides of the regeneration section, as shown in fig. 2. One of which is used for storing dilute solution and the other is used for storing concentrated solution, so as to better manage and control the dehumidifying solution, and whether the dilute solution or the concentrated solution is stored depends on the flowing direction of the dehumidifying solution in the pipeline.
Through the specific arrangement of the solution dehumidification circulation pipeline, the flow of the dehumidification solution in the circulation pipeline can be realized by utilizing gravity.
Preferably, the solution dehumidification circulation pipeline can be provided with a circulation pump for providing power for the circulation of the dehumidification solution, so that the flow of the dehumidification solution is facilitated, and the flow of the dehumidification solution can be controlled. The circulating pump can be specifically arranged on a pipeline between the regeneration section and the dehumidification section.
Considering that there may be dehumidification demand in both cooling mode and heating mode, the number of solution dehumidification circulation pipes in this embodiment may be 1 or 2. Specifically, the setting may be performed according to the condition of the air conditioning system, for example, if the air conditioning system has only a refrigeration function, 1 solution dehumidification circulation line may be provided, and the used dehumidification solution may be selected to heat the solidified solution.
If the number of the solution dehumidification circulation pipelines in the air conditioning system is 2, the structural arrangement ideas of the 2 solution dehumidification circulation pipelines are similar, and the related structures can be selectively configured by referring to the description of the solution dehumidification circulation pipelines. In specific implementation, the structures of the 2 solution dehumidification circulation pipelines can be different or the same, and are determined according to specific requirements. The dehumidifying solutions in the 2 solution dehumidifying circulation pipelines are different (specifically, different in regeneration mode, such as heating regeneration or cooling regeneration), and one of the two solution dehumidifying circulation pipelines is used for dehumidifying in a cooling mode, and the other solution dehumidifying circulation pipeline is used for dehumidifying in a heating mode. The solution chemistry, the applied mode, and the solution flow direction can be combined to select an appropriate dehumidification solution to apply to the corresponding circulation line, for example, a cooling-solidification dehumidification solution in a heating mode and a heating-solidification dehumidification solution in a cooling mode.
Through setting up 2 solution dehumidification circulating line, can utilize different dehumidification solutions to realize respectively in same air conditioning system dehumidification under refrigeration mode and the mode of heating, and the dehumidification process can not lead to indoor temperature to change, has guaranteed user's travelling comfort.
The dehumidifying solution may be triethylene glycol, lithium bromide, aluminum chloride, calcium chloride, metal halide salts formed by their mixture, and the like.
The air conditioning system of the embodiment can be an air duct machine, a wall-mounted machine, a multi-split air conditioner and the like. The embodiment only lists key structures, and it is also within the scope of the present invention to add a control element such as a valve body, for example, a solenoid valve on the solution dehumidification circulation pipeline.
In the embodiment, the wet air and the dehumidifying solution form a gas-liquid two-phase closed system, the dehumidifying solution is composed of two components of water and salt, the wet air is composed of two components of water vapor and dry air, and moisture exists in the two phases, which is an important parameter to be processed in the embodiment. The dehumidifying solution is a salt solution having a strong hygroscopicity, or a hygroscopic material such as silica gel or molecular sieves, which absorbs moisture to become a dilute solution, and after heating (or cooling, depending on the solution characteristics), the solution moisture is evaporated to become a concentrated solution, thereby having a regeneration characteristic.
Fig. 3 is an example, and the specific example is only for better explaining the present application and is not to be construed as limiting the present application. As shown in fig. 3, the air conditioning system includes a solution dehumidification system and a refrigeration system. Solution dehumidification system mainly is the device that sets up on solution dehumidification circulating line and this pipeline, includes: a first solution tank 34 (in this case, a dilute solution tank) and a second solution tank 35 (in this case, a concentrated solution tank), and a fresh air fan 40 also participate in the dehumidification process, and belong to a part of the solution dehumidification system. Figure 3 does not show the fins and the circulation pump. The refrigeration system includes: a compressor 50, a gas-liquid separator 60, a four-way valve 70, an outdoor heat exchanger 10 (a condenser in this example), a throttling device 80, a liquid separating device 90, an indoor heat exchanger 20 (an evaporator in this example) and a complete machine fan 91.
During the refrigeration cycle of the air conditioning system, as shown by an arrow (refrigerant flow direction) in fig. 3, a low-temperature and low-pressure refrigerant comes out of the compressor 50, is changed into high-temperature and high-pressure refrigerant steam, passes through the four-way valve 70, enters the outdoor heat exchanger 10, at this time, the outdoor heat exchanger serves as a condenser, is in a relatively hot state, releases heat in the outdoor heat exchanger, is changed into a liquid state, enters the throttling device 80, then enters the indoor heat exchanger 20 through the liquid separating device 90, and then returns to the compressor 50 through the four-way valve 70 and the gas-liquid separator 60, so that the refrigeration. At this time, the outdoor heat exchanger is in a relatively hot state, air with high temperature is blown out to a regeneration section in the solution dehumidification circulation pipeline, the dehumidification solution in the regeneration section is heated by using the heat of the outdoor heat exchanger, the heat recovery of the outdoor heat exchanger in a refrigeration state is realized, the heated dehumidification solution is changed into a relatively dry state, the dehumidification solution enters a concentrated solution tank and then enters a fresh air system, fresh air introduced by a fresh air fan 40 in the fresh air system is dehumidified, and the dehumidified dry fresh air enters the room through the indoor heat exchanger under the driving of a whole fan 91, so that the temperature and humidity are adjusted. At this moment, although air conditioning system opens the dehumidification function, indoor also can not lower the temperature, dry fresh air also can play the effect of strengthening the dehumidification simultaneously, and the weak solution after the moisture absorption gets into the weak solution jar, then reentrant regeneration segment carries out next circulation.
The air conditioning system that fig. 3 shows increases the new trend function, and the heat of the outdoor heat exchanger of heat recovery realizes the dehumidification of new trend gas through the heat of outdoor heat exchanger, and is gaseous through providing the new trend after dehumidifying with solution to indoor, reduces indoor wet load to realize the humidity independent control of air conditioner, indoor not cooling in dehumidification process, guarantee the travelling comfort that the user used.
Example two
The present embodiment provides a dehumidification control method, which is applied to the air conditioning system described in the above embodiment. Fig. 4 is a flowchart of a dehumidification control method according to a second embodiment of the present invention, and as shown in fig. 4, the method includes the following steps:
s401, a dehumidification command is received.
S402, controlling the dehumidifying solution in the solution dehumidifying circulation pipeline to flow according to the dehumidifying instruction, so that the dehumidifying solution exchanges heat with the air outlet of the outdoor heat exchanger when flowing through the regeneration section, and exchanges heat with the fresh air to be fed into the indoor heat exchanger when flowing through the dehumidifying section.
In the embodiment, a solution dehumidification circulating pipeline is arranged in an air conditioning system, and a regeneration section arranged at the air outlet position of an outdoor heat exchanger in the circulating pipeline is utilized, so that the dehumidification solution exchanges heat with the air outlet of the outdoor heat exchanger when flowing through the regeneration section, and the regeneration of the dehumidification solution is realized; the dehumidification section arranged at the air inlet of the indoor heat exchanger in the circulating pipeline is utilized, so that heat exchange is carried out between the dehumidification section and fresh air to be introduced into the indoor heat exchanger when the dehumidification solution flows through the dehumidification section, and the fresh air is dehumidified. Increase the new trend function on air conditioning system, utilize solution dehumidification circulating line heat recovery outdoor heat exchanger's heat, realize the dehumidification of new trend, to the indoor fresh air gas that provides after the dehumidification, reduce indoor wet load to realize the humidity independent control of air conditioner, the dehumidification process can not lead to indoor temperature to change, guarantees user's travelling comfort.
Specifically, according to the dehumidification instruction control solution dehumidification circulation line in flow, include: and responding to the dehumidification instruction, controlling the fresh air to flow to the indoor heat exchanger and starting a circulating pump on the solution dehumidification circulating pipeline. The fresh air can be introduced by opening a fresh air fan.
Provide dehumidification solution's circulation power through opening the circulating pump for dehumidification solution begins to flow according to the direction of designateing, and introduces the new trend, dehumidifies the new trend with the solution that utilizes dehumidification in the dehumidification section, has realized that the new trend is introduced and independent dehumidification, and the dehumidification process can not lead to indoor temperature to change, guarantees user's travelling comfort.
If the dehumidification function is not started, the dehumidification solution can be stored in the solution tank.
In an optional embodiment, if the number of the solution dehumidification circulation pipelines is 2, controlling the dehumidification solution in the solution dehumidification circulation pipeline to flow according to the dehumidification instruction includes: acquiring a current operation mode of the air conditioning system; determining a solution dehumidification circulating pipeline to be used according to the current operation mode; and controlling the flow of the dehumidifying solution in the solution dehumidifying circulation pipeline to be used.
Wherein, the operation mode of air conditioning system includes: a cooling mode and a heating mode. If the current operation mode is a refrigeration mode, selecting a solution dehumidification circulating pipeline where the heating and solidifying dehumidification solution is as a solution dehumidification circulating pipeline to be used; and if the current operation mode is the heating mode, selecting the solution dehumidification circulating pipeline where the cooled and solidified dehumidification solution is as the solution dehumidification circulating pipeline to be used.
This embodiment is through 2 solution dehumidification circulating line for air conditioning system all can realize independent dehumidification under refrigeration mode or the mode of heating, and the dehumidification process can not lead to indoor temperature to change.
The indoor humidity sensor detects the indoor humidity, and if the target humidity is reached, dehumidification is stopped. The system can preset the corresponding relation between the target humidity and the solution flow, determine the corresponding target solution flow according to the current target humidity, and control the dehumidifying solution in the solution dehumidifying circulation pipeline to flow according to the target solution flow. Therefore, if the user changes the target humidity, dehumidification can be achieved according to the target temperature, and the user requirements are met.
EXAMPLE III
Based on the same concept, the present embodiment provides a dehumidification control apparatus, which is applied to the air conditioning system described in the above embodiment, and can be used to implement the dehumidification control method described in the above embodiment. The device may be implemented by software and/or hardware, and may be generally integrated into a controller of an air conditioning system.
Fig. 5 is a block diagram of a dehumidification control apparatus according to a third embodiment of the present invention, and as shown in fig. 5, the dehumidification control apparatus includes:
a receiving module 51, configured to receive a dehumidification instruction;
and the control module 52 is configured to control the dehumidification solution in the solution dehumidification circulation pipeline to flow according to the dehumidification instruction, so that the dehumidification solution exchanges heat with the air outlet of the outdoor heat exchanger when flowing through the regeneration section, and exchanges heat with the fresh air to be introduced into the indoor heat exchanger when flowing through the dehumidification section.
Optionally, the control module 52 is specifically configured to: and responding to the dehumidification instruction, controlling the fresh air to flow to the indoor heat exchanger and starting a circulating pump on the solution dehumidification circulating pipeline.
Optionally, if the number of the solution dehumidification circulation pipes is 2, the control module 52 includes:
the acquisition unit is used for acquiring the current operation mode of the air conditioning system;
the determining unit is used for determining the solution dehumidifying circulation pipeline required to be used according to the current operation mode;
and the control unit is used for controlling the flow of the dehumidifying solution in the solution dehumidifying circulation pipeline to be used.
The device can execute the method provided by the embodiment of the invention, and has the corresponding functional modules and beneficial effects of the execution method. For technical details that are not described in detail in this embodiment, reference may be made to the method provided by the embodiment of the present invention.
Example four
The present embodiment provides a computer-readable storage medium on which a computer program is stored, which when executed by a processor, implements the dehumidification control method as described in the above embodiments.
The present embodiment provides an electronic device, including: at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor to enable the at least one processor to implement the dehumidification control method according to the above embodiments.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (13)
1. An air conditioning system comprising an outdoor heat exchanger and an indoor heat exchanger, characterized in that the air conditioning system further comprises: a solution dehumidification circulation line;
a regeneration section in the solution dehumidification circulating pipeline is arranged at the air outlet of the outdoor heat exchanger, and the dehumidification solution exchanges heat with the air outlet of the outdoor heat exchanger when flowing through the regeneration section;
the dehumidification section in the solution dehumidification circulation pipeline is arranged at the air inlet of the indoor heat exchanger, and the dehumidification solution flows through the dehumidification section and exchanges heat with fresh air to be fed into the indoor heat exchanger.
2. The air conditioning system of claim 1, further comprising: the air outlet of the fresh air duct is connected to the air inlet of the indoor heat exchanger; the dehumidification section is arranged in the fresh air duct.
3. The air conditioning system of claim 2, further comprising: the fresh air fan is arranged in the fresh air duct.
4. The air conditioning system as claimed in claim 1, wherein the solution dehumidification circulation pipeline is provided with first fins and/or second fins, the regeneration section is embedded in the first fins, and the dehumidification section is embedded in the second fins.
5. The air conditioning system of claim 1, wherein a first solution tank and/or a second solution tank is provided in communication on the conduit between the regeneration section and the dehumidification section.
6. The air conditioning system of claim 5, wherein if a first solution tank and a second solution tank are provided, the first solution tank and the second solution tank are respectively located at both sides of the regeneration section.
7. The air conditioning system as claimed in claim 1, wherein a circulation pump is provided on the solution dehumidifying circulation line.
8. The air conditioning system as claimed in any one of claims 1 to 7, wherein the number of the solution dehumidification circulation lines is 1 or 2, and if the number is 2, the dehumidification solutions in the 2 solution dehumidification circulation lines are different, and one of the solution dehumidification circulation lines is used for dehumidification in a cooling mode and the other solution dehumidification circulation line is used for dehumidification in a heating mode.
9. A dehumidification control method applied to the air conditioning system according to any one of claims 1 to 8, the method comprising:
receiving a dehumidification instruction;
and controlling the dehumidification solution in the solution dehumidification circulating pipeline to flow according to the dehumidification instruction, so that the dehumidification solution exchanges heat with the air outlet of the outdoor heat exchanger when flowing through the regeneration section, and exchanges heat with the fresh air to be fed into the indoor heat exchanger when flowing through the dehumidification section.
10. The method of claim 9, wherein controlling the flow of the dehumidification solution in the solution dehumidification loop based on the dehumidification command comprises:
and responding to the dehumidification instruction, controlling the fresh air to flow to the indoor heat exchanger and starting a circulating pump on the solution dehumidification circulating pipeline.
11. The method of claim 9, wherein if the number of the solution dehumidification circulation pipes is 2, controlling the dehumidification solution in the solution dehumidification circulation pipe to flow according to the dehumidification command comprises:
acquiring a current operation mode of the air conditioning system;
determining a solution dehumidification circulating pipeline to be used according to the current operation mode;
and controlling the flow of the dehumidifying solution in the solution dehumidifying circulation pipeline to be used.
12. A dehumidification control apparatus, which is applied to the air conditioning system according to any one of claims 1 to 8, comprising:
the receiving module is used for receiving a dehumidification instruction;
and the control module is used for controlling the dehumidification solution in the solution dehumidification circulating pipeline to flow according to the dehumidification instruction, so that the dehumidification solution exchanges heat with the air outlet of the outdoor heat exchanger when flowing through the regeneration section, and exchanges heat with the fresh air to be fed into the indoor heat exchanger when flowing through the dehumidification section.
13. A computer-readable storage medium on which a computer program is stored, the program implementing the dehumidification control method according to any one of claims 9 to 11 when executed by a processor.
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