Purification device, air conditioner and control method and control device of air conditioner

Abstract

The invention provides a purification device, an air conditioner and a control method and device of the air conditioner. The purification device comprises an evaporator, the surface of the evaporator is provided with a hydrophilic adsorption layer, and the hydrophilic adsorption layer is arranged to be capable of adsorbing the water-soluble pollutants, so that the water-soluble pollutants are dissolved in condensed water condensed on the surface of the evaporator and drop along with the condensed water. According to the scheme, the odorous gas can be transferred from a gas phase to a liquid phase, the odorous gas is removed, the purification efficiency is high, the broad spectrum is high, and the safety coefficient is high; consumables are avoided, and replacement is not needed; wind resistance cannot be increased, and the occupied area is small; dangerous parts such as an ultraviolet lamp and high-voltage electricity do not need to be arranged; no harmful by-products such as ozone and nitrogen oxides are generated, and no secondary pollution is caused.

Description

Technical Field

[0001] The present application relates to but is not limited to the field of air-conditioning technology, and specifically refers to a purification device, an air-conditioner, a control method thereof, and a control device. Background Art

[0002] At present, the odor purification technologies used in household appliances mostly adopt the following methods: adsorption method or adsorption regeneration method, photolysis method, non-thermal plasma degradation method, catalytic method (photocatalysis, non-thermal plasma catalysis), etc.

[0003] Among them, the traditional adsorption technology has the problem of secondary pollution after adsorption saturation, and the filter needs to be replaced regularly. Even if equipped with regeneration technology, there is still the problem of large wind resistance, and the regeneration technology requires a special air duct to exhaust outdoors, which increases the cost of the whole machine.

[0004] Photolysis requires a high-power ultraviolet light source, which consumes a lot of energy, is dangerous to the human body, and will also age other components such as instruments. In addition, short-wave ultraviolet light produces a large amount of ozone as a byproduct, which is harmful to human health and requires special means for post-processing.

[0005] Non-thermal plasma technology requires extremely high power to degrade odors, and the high-energy particles produced have a short life span and cannot effectively contact harmful gases. There is a possibility that the odor molecules cannot be completely oxidized, but other new harmful intermediates are generated. In addition, non-thermal plasma technology is also prone to produce by-products such as ozone and nitrogen oxides when degrading odors. The above two points will cause secondary pollution. In addition, high voltage electricity is also dangerous.

[0006] Although the synergistic catalytic degradation of odor molecules by ultraviolet light sources or non-thermal plasma sources and catalysts has increased efficiency to a certain extent and reduced the generation of by-products, catalysts are generally specific and generally only work well on one type of pollutant, which has limitations. In addition, the odor removal module used with air conditioners has a short contact time with the catalyst due to the high wind speed, and the gas-solid interface reaction efficiency is low, resulting in an ineffective purification effect and poor efficiency in removing odorous gases.

[0007] Moreover, the above methods all have insufficient purification efficiency due to volume limitations. Summary of the invention

[0008] The technical problem to be solved by the present application is to provide a purification device that can transfer odorous gases from the gas phase to the liquid phase to achieve the removal of odorous gases, with high purification efficiency, high broad spectrum, and high safety factor; and no consumables, no need for replacement; no increase in wind resistance, and a small footprint; no need to be equipped with dangerous components such as ultraviolet lamps and high voltage electricity; no harmful by-products such as ozone and nitrogen oxides are generated, and no secondary pollution.

[0009] The technical solution for solving the above-mentioned technical problems in the embodiments of the present application is as follows: a purification device, comprising: an evaporator, wherein a hydrophilic adsorption layer is provided on the surface of the evaporator, and the hydrophilic adsorption layer is configured to adsorb water-soluble pollutants so that the water-soluble pollutants are dissolved in condensed water condensed on the surface of the evaporator and drip with the condensed water.

[0010] The purification device provided in the embodiment of the present application includes an evaporator. When the evaporator is working, air can flow through the evaporator and exchange heat with the evaporator. Since the surface of the evaporator is provided with a hydrophilic adsorption layer, water-soluble pollutants in the air will be adsorbed into the hydrophilic adsorption layer, so that the air is purified. Condensed water is also easily generated on the surface of the evaporator. Since the amount of condensed water is much larger than the amount of water-soluble pollutants, the water-soluble pollutants adsorbed in the hydrophilic adsorption layer will eventually be replaced by water molecules, so that the water-soluble pollutants are dissolved in the condensed water, realizing the transfer from the gas phase to the liquid phase, and dripping with the condensed water, and the condensed water can be discharged to the outside, or it can be further processed. In this way, the water-soluble pollutants in the air are removed, and the indoor air is purified.

[0011] Among them, since the molecules of the odorous gas are mostly water-soluble small molecules (such as small molecular acids such as lactic acid, formic acid, acetic acid, etc., which can be produced by human skin metabolism or by food), they can be well adsorbed by the hydrophilic adsorption layer and then transferred to the condensed water for removal. Therefore, the purification device provided in the embodiment of the present application has a good odor purification effect. Of course, in addition to odor molecules, water-soluble pollutants such as formaldehyde can also be well adsorbed and transferred to the condensed water for removal.

[0012] In addition, this solution mainly utilizes the transfer of odorous gas from gas phase to liquid phase, and removes odorous gas through the hydrophilic adsorption layer of the evaporator and the condensed water condensed on the evaporator. Compared with traditional adsorption technology, since water-soluble pollutants will be transferred to the condensed water instead of being in the hydrophilic adsorption layer, the hydrophilic adsorption layer can be regenerated, and the condensed water can be discharged to the outside or disposed of, so there is no secondary pollution problem after adsorption saturation, and there is no need to replace consumables regularly. It occupies a small space, does not cause large wind resistance, and does not need to be equipped with a special air duct. Compared with photolysis, non-thermal plasma degradation, catalytic method and other technologies, this solution does not need to be equipped with dangerous components such as ultraviolet lamps and high-voltage power supplies, and no harmful byproducts such as ozone and nitrogen oxides are generated. There is no secondary pollution, and there is no specificity for the type of pollutants. It has a good removal and purification effect on most odor molecules, high purification efficiency, high broad spectrum, and high safety factor.

[0013] In addition, the purification device of this solution can break through the volume limitation of other purification methods and facilitate rapid removal of odors by rationally utilizing the structure and function of the air conditioner itself.

[0014] Based on the above technical solution, the present application can also be improved as follows.

[0015] In an exemplary embodiment, the hydrophilic adsorption layer comprises a mixture of MXene and hydrophilic carbon nanotubes.

[0016] In an exemplary embodiment, the molar ratio of the MXene to the hydrophilic carbon nanotube is in a range of 8:1 to 1:2.

[0017] In an exemplary embodiment, the hydrophilic adsorption layer includes a base layer disposed on the surface of the evaporator and a surface layer disposed on the surface of the base layer, and a component of the surface layer includes a mixture of the MXene and hydrophilic carbon nanotubes.

[0018] In an exemplary embodiment, the surface layer is a topcoat layer, and the slurry of the topcoat layer includes: a MXene suspension, a hydrophilic carbon nanotube dispersion, an adhesive and water; the total mass of the MXene and the hydrophilic carbon nanotubes accounts for 3% to 10% of the total mass of the slurry; the drying temperature of the topcoat layer is in the range of 45°C to 65°C.

[0019] In an exemplary embodiment, the thickness of the surface layer is in a range of 2 μm to 15 μm; and / or the base layer is an epoxy coating.

[0020] In an exemplary embodiment, the purification device further includes: a water receiving tray, disposed below the evaporator and configured to collect condensed water dripping from the evaporator; and an electrolytic purification module, configured to perform electrolytic purification treatment on the liquid dripping from the evaporator; wherein the electrolytic purification module is disposed in the water receiving tray; or, the electrolytic purification module is disposed downstream of the water receiving tray and connected to the water receiving tray, and is configured to collect the liquid discharged from the water receiving tray and perform electrolytic purification treatment.

[0021] In an exemplary embodiment, the purification device further comprises: a humidification module configured to humidify the liquid purified by the electrolytic purification module.

[0022] In an exemplary embodiment, the electrolytic purification module is disposed downstream of the water receiving tray and is connected to the water receiving tray; wherein the purification device further comprises: a filtration module, disposed between the water receiving tray and the electrolytic purification module, configured to filter the liquid discharged from the water receiving tray; and / or the electrolytic purification module is provided with a feeding port, which is configured to add electrolyte to the electrolytic purification module.

[0023] In an exemplary embodiment, the purification device further includes: a first detection component configured to detect the pollutant concentration of the liquid purified by the electrolytic purification module; and / or a second detection component configured to detect the pollutant concentration of the gas to be flowed to the evaporator.

[0024] An embodiment of the present application also provides an air conditioner, comprising a purification device as described in any one of the above embodiments.

[0025] In an exemplary embodiment, the air conditioner further includes a casing, the evaporator and the water receiving tray of the purification device are arranged in the casing, and the electrolytic purification module and the humidification module of the purification device are arranged outside the casing.

[0026] The present application also provides a control method for the air conditioner as described in the above embodiment, the control method comprising:

[0027] Controlling the air conditioner to operate in a refrigerating manner so that the hydrophilic adsorption layer of the evaporator adsorbs water-soluble pollutants in the air;

[0028] The rotation speed of the evaporation fan of the air conditioner is reduced, so that the water-soluble pollutants adsorbed by the hydrophilic adsorption layer are dissolved into the condensed water condensed on the evaporator and drip with the condensed water.

[0029] In an exemplary embodiment, the control method further includes:

[0030] Based on the determination that the humidification function is not turned on, the condensed water dripping from the evaporator is discharged outdoors.

[0031] In an exemplary embodiment, the control method further includes:

[0032] Based on the determination to start the humidification function, the electrolytic purification module of the purification device is started to perform electrolytic purification on the liquid dripping from the evaporator;

[0033] Based on the pollutant concentration in the liquid purified by the electrolytic purification module being reduced to within a first set concentration range, the humidification module of the purification device is started.

[0034] In an exemplary embodiment, the control method further includes:

[0035] Before starting the electrolytic purification module of the purification device, the evaporation fan is operated at a reduced speed for a second set time;

[0036] Before starting the humidification module of the purification device, determining that the activation time of the electrolytic purification module reaches a third set time;

[0037] Based on the fact that the pollutant concentration in the liquid purified by the electrolytic purification module has not been reduced to within the first set concentration range, the step of starting the electrolytic purification module of the purification device to electrolytically purify the liquid dripping from the evaporator is returned to execution.

[0038] In an exemplary embodiment, the control method further includes: before reducing the rotation speed of the evaporation fan of the air conditioner, determining that a purification function is turned on and the operation time of the air conditioner cooling operation reaches a first set time.

[0039] In an exemplary embodiment, the control method further includes:

[0040] Based on the fact that the concentration of water-soluble pollutants in the indoor air has not dropped to within the second set concentration range, the rotation speed of the evaporating fan is increased, and the step of controlling the air-conditioning cooling operation to allow the hydrophilic adsorption layer of the evaporator to adsorb water-soluble pollutants is returned to.

[0041] In an exemplary embodiment, before controlling the air conditioner to operate in a cooling mode so that the hydrophilic adsorption layer of the evaporator adsorbs water-soluble pollutants, the control method further includes:

[0042] Determine whether to turn on the purification function and humidification function;

[0043] Based on the determination of starting the purification function and / or the humidification function, the step of controlling the air conditioner to operate in a cooling manner so that the hydrophilic adsorption layer of the evaporator adsorbs water-soluble pollutants is performed.

[0044] An embodiment of the present application further provides a control device, including a processor and a memory storing a computer program, wherein the processor implements the steps of the control method described in any one of the above embodiments when executing the computer program. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 A schematic diagram of a partial structure of an air conditioner provided in some embodiments of the present application;

[0046] Figure 2 is a graph showing the relationship between the air pollutant treatment time and the surface thickness of the hydrophilic adsorption layer;

[0047] Figure 3 A flowchart of a control method provided for some embodiments of the present application.

[0048] Figure 1 The parts represented by the various reference numerals are listed as follows:

[0049] 1 evaporator, 2 water tray, 3 drain pipe, 4 filter module, 5 electrolytic purification module, 6 humidification module, 7 first detection component, 8 second detection component. DETAILED DESCRIPTION

[0050] The principles and features of the present application are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present application and are not used to limit the scope of the present application.

[0051] like Figure 1 As shown, an embodiment of the present application provides a purification device that can be used for air conditioning, but is not limited to air conditioning.

[0052] The purification device comprises: an evaporator 1. A hydrophilic adsorption layer is provided on the surface of the evaporator 1, and the hydrophilic adsorption layer is configured to adsorb water-soluble pollutants so that the water-soluble pollutants are dissolved into condensed water condensed on the surface of the evaporator 1 and drip with the condensed water.

[0053] The purification device provided in the embodiment of the present application includes an evaporator 1. When the evaporator 1 is working, air can flow through the evaporator 1 to exchange heat with the evaporator 1. Since the surface of the evaporator 1 is provided with a hydrophilic adsorption layer, water-soluble pollutants in the air will be adsorbed into the hydrophilic adsorption layer, so that the air is purified. Condensed water is also easily generated on the surface of the evaporator 1. Since the amount of condensed water is much larger than the amount of water-soluble pollutants, the water-soluble pollutants adsorbed in the hydrophilic adsorption layer will eventually be replaced by water molecules, so that the water-soluble pollutants are dissolved in the condensed water, realizing the transfer from the gas phase to the liquid phase, and dripping with the condensed water, and the condensed water can be discharged to the outside, or it can be further processed. In this way, the water-soluble pollutants in the air are removed, and the indoor air is purified.

[0054] Among them, since the molecules of the odorous gas are mostly water-soluble small molecules (such as small molecular acids such as lactic acid, formic acid, acetic acid, etc., which can be produced by human skin metabolism or by food), they can be well adsorbed by the hydrophilic adsorption layer and then transferred to the condensed water for removal. Therefore, the purification device provided in the embodiment of the present application has a good odor purification effect. Of course, in addition to odor molecules, water-soluble pollutants such as formaldehyde can also be well adsorbed and transferred to the condensed water for removal.

[0055] In addition, this solution mainly utilizes the transfer of odorous gas from gas phase to liquid phase, and removes odorous gas through the hydrophilic adsorption layer of evaporator 1 and condensed water condensed on evaporator 1. Compared with traditional adsorption technology, since water-soluble pollutants will be transferred to condensed water instead of being in the hydrophilic adsorption layer, the hydrophilic adsorption layer can be regenerated, and the condensed water can be discharged to the outside or disposed of, so there is no secondary pollution problem after adsorption saturation, and there is no need to replace consumables regularly. It occupies a small space, does not cause large wind resistance, and does not need to be equipped with a special air duct. Compared with photolysis, non-thermal plasma degradation, catalytic method and other technologies, this solution does not need to be equipped with dangerous components such as ultraviolet lamps and high-voltage power supplies, and no harmful byproducts such as ozone and nitrogen oxides are generated. There is no secondary pollution, and there is no specificity for the type of pollutants. It has a good removal and purification effect on most odor molecules, high purification efficiency, high broad spectrum, and high safety factor.

[0056] In addition, the purification device of this scheme can break through the volume limitation of other purification methods, and by rationally utilizing the structure and function of the air conditioner itself, it is conducive to the rapid removal of odor. For example: first, the air conditioner is refrigerated for a period of time to allow the water-soluble pollutants such as odorous gases in the room to be quickly adsorbed into the hydrophilic adsorption layer of the evaporator 1, and then the speed of the evaporating fan is reduced, so that a large amount of condensed water can be generated on the evaporator 1, and the condensed water can be used to replace the water-soluble pollutants in the hydrophilic adsorption layer, so that the water-soluble pollutants are dissolved in the condensed water and drip rapidly with the condensed water (equivalent to the condensed water being able to replace the water-soluble pollutants from the hydrophilic adsorption layer and flush them down), thereby achieving rapid removal of odor.

[0057] It should be noted that both water-soluble pollutants and water molecules have good adsorption properties with the hydrophilic adsorption layer, so there is a competitive relationship between the two. Among them, some water-soluble pollutants have a lower adsorption property with the hydrophilic adsorption layer than water molecules, so these water-soluble pollutants are easily replaced by water molecules. Some water-soluble pollutants have a better adsorption property with the hydrophilic coating than water molecules, but because the amount of water molecules is much greater than the amount of water-soluble pollutants, these water-soluble pollutants will also be quickly replaced in the "siege" of a large number of water molecules. Therefore, by running the evaporator fan at a high speed in the early stage, the water-soluble pollutants in the indoor air can be quickly adsorbed into the hydrophilic adsorption layer of the evaporator 1; by using the slow-down operation of the evaporator fan in the later stage, a large amount of condensed water can be quickly generated on the evaporator 1, which will promote the desorption of water-soluble pollutant molecules, so that the water-soluble pollutants adsorbed by the hydrophilic adsorption layer are quickly transferred to the condensed water and drip with the condensed water, thereby achieving rapid removal of odor.

[0058] The evaporation fan refers to a fan for generating an airflow through the evaporator 1. For a split-type air conditioner, the evaporator 1 may refer to an indoor heat exchanger, and the evaporation fan corresponds to the indoor fan.

[0059] In some exemplary embodiments, the evaporator 1 includes an evaporator body and heat exchange fins connected to the evaporator body, and the hydrophilic adsorption layer is disposed on the surface of the heat exchange fins.

[0060] Compared with the evaporator body, the shape of the heat exchange fin is relatively flat, so it is convenient to prepare the hydrophilic adsorption layer, which is beneficial to reduce the processing cost. In addition, the surface area of ​​the heat exchange fin is large, which is beneficial to provide sufficient installation area.

[0061] The heat exchange fins may be metal-based fins, such as aluminum-based fins. The evaporator body may include multiple rows of heat exchange tubes.

[0062] In some exemplary embodiments, the composition of the hydrophilic adsorption layer includes a mixture of MXene and hydrophilic carbon nanotubes.

[0063] Both MXene and hydrophilic carbon nanotubes have good hydrophilicity, and after mixing, the hydrophilic adsorption layer can form a porous material adsorption layer, which has the characteristics of high adsorption, high hydrophilicity, and high specific surface area, which is beneficial to improve the adsorption capacity of the purification device, thereby improving the purification efficiency of the purification device.

[0064] Among them, MXene is a class of two-dimensional inorganic compounds in materials science. It is a two-dimensional transition metal carbide, nitride or carbonitride with a general chemical formula of Mn+1XnTx, where M is an early transition metal of group 3-6, X is carbon or nitrogen, and Tx is a surface functional group (e.g., -F, -O, -OH). MXene is produced from layered ceramic precursors, usually Mn+1AXn(MAX) phase materials, where A is an element of group 11-16 (e.g., Al, Si, P, S, Ga, Ge, As, Cd, In, Sn, Tl, Pb) and n is 1-4. These precursors have a layered hexagonal structure in which the M layers are nearly densely packed and the X atoms fill the octahedral gaps. Therefore, the Mn+1Xn layers are staggered with the A elements, and there are metallic bonds between the A elements and the M elements. MXene can be obtained by selectively etching away the A elements and part of the X elements.

[0065] Carbon nanotubes, also known as buckytubes, are one-dimensional quantum materials with a special structure (radial dimensions are nanometers, axial dimensions are micrometers, and both ends of the tube are basically sealed). Carbon nanotubes are mainly composed of several to dozens of layers of coaxial circular tubes composed of carbon atoms arranged in hexagons. The distance between layers is fixed, about 0.34nm, and the diameter is generally 2 to 20nm. And according to the different orientations of carbon hexagons along the axial direction, they can be divided into three types: zigzag, armchair and spiral. Among them, spiral carbon nanotubes have chirality, while zigzag and armchair carbon nanotubes do not have chirality.

[0066] In some exemplary embodiments, the amount ratio (ie, molar ratio) of MXene to hydrophilic carbon nanotubes is in the range of 8:1 to 1:2, such as 8:1, 7:1, 6:1, 5:1, 4:1, 3:1, 2:1, 1:1, 1:2, etc.

[0067] In this way, the ratio of MXene to hydrophilic carbon nanotubes is relatively appropriate, which is beneficial for the hydrophilic adsorption layer to have a higher specific surface area, and thus is beneficial for improving the adsorption capacity of the hydrophilic adsorption layer.

[0068] In some exemplary embodiments, the hydrophilic adsorption layer includes a base layer disposed on the surface of the evaporator 1 and a surface layer disposed on the surface of the base layer. The composition of the surface layer includes a mixture of MXene and hydrophilic carbon nanotubes.

[0069] The base layer is conducive to improving the bonding force between the hydrophilic adsorption layer and the surface of the evaporator 1, and is also conducive to improving the corrosion resistance of the evaporator 1, thereby increasing the service life of the hydrophilic adsorption layer. The surface layer mainly plays an adsorption function to achieve purification and removal of water-soluble pollutants.

[0070] In some embodiments, the base layer may be a primer coating, which may be an epoxy coating, or the epoxy primer coating may be roll-coated on the aluminum-based fin after cleaning.

[0071] In some exemplary embodiments, the surface layer is a topcoat layer. The slurry of the topcoat layer includes: a MXene suspension, a hydrophilic carbon nanotube dispersion, an adhesive, and water.

[0072] Among them, the total mass of MXene and hydrophilic carbon nanotubes can account for 3% to 10% of the total mass of the slurry.

[0073] The drying temperature of the topcoat layer may be in the range of 45°C to 65°C, such as 45°C, 50°C, 55°C, 60°C, 65°C, etc.

[0074] The preparation method of the topcoat can be as follows: prepare a MXene suspension with a MAX precursor, then add a dispersed hydrophilic carbon nanotube dispersion and an adhesive (such as PVP, i.e. polyvinyl pyrrolidone, the Chinese name is polyvinyl pyrrolidone), and the solvent is water. The coating slurry is rolled onto the heat exchange fin with the primer coating, and dried at a low temperature of 45°C-65°C.

[0075] The molar ratio of MXene to hydrophilic carbon nanotubes can be between 8:1 and 1:2, and the total mass concentration of the adsorbent material is 3% to 10% (such as 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, etc.). The molar ratio of MXene to hydrophilic carbon nanotubes = the amount of MXene in the MXene suspension: the amount of hydrophilic carbon nanotubes in the hydrophilic carbon nanotube dispersion.

[0076] The adsorbent material refers to MXene and hydrophilic carbon nanotubes, and therefore, the total mass concentration of the adsorbent material = (total mass of MXene in the MXene suspension + total mass of hydrophilic carbon nanotubes in the hydrophilic carbon nanotube dispersion) / total mass of the slurry × 100%.

[0077] In some exemplary embodiments, the thickness of the surface layer is in the range of 2 μm to 15 μm, such as 2 μm, 5 μm, 8 μm, 10 μm, 12 μm, 15 μm, etc.

[0078] The porous material adsorption layer has a large adsorption capacity. Combined with the air volume of the air conditioner, by reasonably setting the thickness of the surface layer, the effect of rapid purification and deodorization can be achieved, which is beneficial to cost saving.

[0079] After experimental verification, setting the thickness of the surface layer within the above range can achieve the effect of rapid purification and deodorization, and is conducive to cost savings. The experiment uses the air volume of a common split air conditioner, which is suitable for pollutant concentrations below 5ppm. Among them, 5ppm is already an unbearable concentration for the human body for most odors. Before reaching this concentration, users will take measures. Therefore, in indoor environments, the situation of odors with concentrations higher than 5ppm can be ignored. The experimental method is to release the odor quantitatively, and non-odor sources continue to exist in the space.

[0080] According to test data, when the surface layer thickness is 2μm, it takes 45 minutes to treat indoor air pollutants; when the surface layer thickness is 5μm, it takes 30 minutes to treat indoor air pollutants; when the surface layer thickness is 10μm, it takes 19.5 minutes to treat indoor air pollutants; when the surface layer thickness is 15μm, it takes 15 minutes to treat indoor air pollutants; when the surface layer thickness is 20μm, it takes 15 minutes to treat indoor air pollutants. It can be seen that when the surface layer thickness is 15μm, the effect of rapid deodorization can be achieved. Due to the limitation of air volume of air conditioner, the effect of further thickening the coating on the indoor odor treatment time is no longer obvious.

[0081] In some exemplary embodiments, Figure 1 As shown, the purification device further includes: a water receiving tray 2 and an electrolytic purification module 5. The water receiving tray 2 is arranged below the evaporator 1, and is arranged to collect condensed water dripping from the evaporator 1. The electrolytic purification module 5 is arranged to perform electrolytic purification on the liquid dripping from the evaporator 1.

[0082] The electrolytic purification module 5 can electrolytically purify the liquid dripping from the evaporator 1 (i.e., condensed water containing water-soluble pollutants), and completely degrade the water-soluble pollutants into carbon dioxide and water through electrocatalysis. In this way, the condensed water can be collected and used, such as for humidifying the room.

[0083] The electrolytic purification module 5 includes a DC power supply and an electrode electrically connected to the DC power supply. Under the action of the DC electric field, the wastewater containing electrolyte undergoes oxidation reaction and reduction reaction at the anode and cathode respectively, which can degrade water-soluble pollutants into carbon dioxide and water, so that the condensed water is purified.

[0084] The electrodes of the electrolytic purification module 5 can be directly arranged in the water receiving tray 2, and the liquid in the water receiving tray 2 can be directly electrolytically purified. In this way, there is no need to separately set up a liquid storage tank for containing condensed water and the electrolytic purification module 5.

[0085] Alternatively, the electrolytic purification module 5 may also be arranged outside the water receiving tray 2, located downstream of the water receiving tray 2, and communicated with the water receiving tray 2, and is arranged to collect the liquid discharged from the water receiving tray 2 and perform electrolytic purification treatment. In this way, the liquid electrolytically purified by the electrolytic purification module 5 may not be restricted by the position of the water receiving tray 2, and is convenient for reasonable use. In this case, the electrolytic purification module 5 may be connected to the drain pipe 3 connected to the water receiving tray 2, and the position of the electrolytic purification module 5 may be lower than the position of the water receiving tray 2, so as to collect the condensed water discharged from the water receiving tray 2 by gravity.

[0086] Among them, the electrode material of the electrolytic purification module 5 can have the advantages of high efficiency, good stability, and low price, for example, it can be an electrode containing nickel, iron, or cobalt, or a carbon electrode doped with a precious metal. The applied potential of the electrolytic purification module 5 can be determined according to factors such as the properties of the electrode material, the electrode area, the degree of contamination of the condensed water, and the flow rate of the condensed water, and can be within the range of 1.2V-3V (such as 1.2V, 1.5V, 1.8V, 2.0V, 2.2V, 2.5V, 2.8V, 3V, etc.), with a lower voltage and higher safety.

[0087] In some exemplary embodiments, Figure 1 As shown, the purification device further includes: a humidification module 6, which is configured to humidify the liquid purified by the electrolytic purification module 5.

[0088] Since the condensed water on the evaporator 1 comes from the moisture in the indoor air, the purification method of the embodiment of the present application may cause the indoor humidity to decrease, causing discomfort to the user. However, this solution adds a humidification module 6, which can use the purified condensed water for indoor humidification, which is conducive to restoring the indoor humidity and solving the pain point of indoor air dryness caused by turning on the air conditioner, thereby improving the user experience.

[0089] The humidification module 6 may be, but is not limited to, an atomization humidification module 6 , an ultrasonic humidification module 6 , and the like.

[0090] In some exemplary embodiments, the electrolytic purification module 5 is disposed downstream of the water receiving tray 2 and communicates with the water receiving tray 2. The purification device further includes: a filtering module 4, such as Figure 1 As shown, it is arranged between the water receiving tray 2 and the electrolytic purification module 5, and is configured to filter the liquid discharged from the water receiving tray 2.

[0091] The filter module 4 can initially filter dust and other particles in the liquid discharged from the water receiving tray 2, which is beneficial to improve the cleanliness of the liquid in the electrolytic purification module 5. The filter module 4 can be a coarse filtering device with built-in PP cotton (PP cotton is the popular name for Poly series artificial chemical fibers).

[0092] In some exemplary embodiments, the electrolytic purification module 5 is provided with a charging port (not shown in the figure), which is configured to add electrolyte to the electrolytic purification module 5. The electrolytic purification module 5 may be located indoors but outside the air conditioner casing.

[0093] This makes it easy to artificially add a small amount of salt (or other electrolytes) to improve the conductivity and electrolysis capacity of the condensed water, thereby facilitating the improvement of the degradation efficiency of the electrolytic purification module 5 on the pollutants in the condensed water.

[0094] In some exemplary embodiments, Figure 1As shown, the purification device further includes: a first detection component 7, configured to detect the pollutant concentration of the liquid purified by the electrolytic purification module 5;

[0095] By detecting the pollutant concentration of the liquid processed by the electrolytic purification module 5 through the first detection component 7, it can be determined whether the liquid has been purified, so as to humidify the purified liquid to avoid secondary pollution.

[0096] When the electrolytic purification module 5 is disposed in the water receiving tray 2, the first detection component 7 can be disposed in the water receiving tray 2. When the electrolytic purification module 5 is disposed downstream of the water receiving tray 2, the electrolytic purification module 5 itself has a liquid storage tank, so the first detection component 7 can be disposed in the liquid storage tank of the electrolytic purification module 5.

[0097] In some exemplary embodiments, Figure 1 As shown, the purification device further comprises: a second detection component 8 , which is configured to detect the pollutant concentration of the gas to be flowed to the evaporator 1 .

[0098] By detecting the pollutant concentration of the gas flowing to the evaporator 1 through the second detection component 8, it can be determined whether the indoor air is purified, so as to end the purification process in time. The second detection component 8 can be arranged on the upstream side of the evaporator 1, such as at the air inlet of the indoor unit.

[0099] The first detection component 7 and the second detection component 8 may be sensors for detecting the concentration of odor molecules.

[0100] like Figure 1 As shown, an embodiment of the present application also provides an air conditioner, including: a purification device as described in any one of the above embodiments.

[0101] The air conditioner provided in the embodiment of the present application includes the purification device of any one of the above embodiments, and thus has all the above beneficial effects, which will not be repeated here.

[0102] In some exemplary embodiments, the air conditioner further comprises a casing (not shown in the figure). The evaporator 1 and the water receiving tray 2 of the purification device are arranged in the casing, and the electrolytic purification module 5 and the humidification module 6 of the purification device are arranged outside the casing.

[0103] The electrolytic purification module 5 is arranged outside the casing to facilitate adding electrolyte (such as salt) into the electrolytic purification module 5 through the feeding port of the electrolytic purification module 5 .

[0104] The humidification module 6 is arranged outside the casing so that the generated moisture can be directly released into the room, achieving a humidification effect without affecting the normal operation of the conventional functions of the air conditioner.

[0105] Of course, the air conditioner also includes components such as a compressor, a condenser, a throttling device, an evaporating fan, and a condensing fan to ensure that the air conditioner can circulate refrigerant and achieve cooling operation. Evaporator 1 and evaporating fan can be set indoors. Condenser and condensing fan can be set outdoors. When the air conditioner is in cooling operation, the evaporation heat absorption temperature of evaporator 1 is low, and condensed water can be produced; the condenser condensation heat release temperature is high. When the air conditioner is in heating operation, the evaporator 1 condensation heat release temperature is high (the actual function is a condenser); the condenser temperature is low and the evaporation heat absorption temperature is low (the actual function is evaporator 1), which can produce condensed water. However, the indoor air is usually purified, so evaporator 1 refers to the indoor heat exchanger.

[0106] like Figure 2 As shown, the embodiment of the present application further provides a control method for an air conditioner as in any one of the above embodiments, the control method comprising:

[0107] Step S202: Control the air conditioner to operate in a cooling manner so that the hydrophilic adsorption layer of the evaporator adsorbs water-soluble pollutants in the air;

[0108] Step S204: reducing the rotation speed of the evaporation fan of the air conditioner so that the water-soluble pollutants adsorbed by the hydrophilic adsorption layer are dissolved into the condensed water condensed on the evaporator and drip with the condensed water.

[0109] The control method provided in the embodiment of the present application can first control the refrigeration operation of the air conditioner. In this process, the fan speed is relatively high, and a large amount of air will flow through the evaporator 1. Since the surface of the evaporator 1 is provided with a hydrophilic adsorption layer, water-soluble pollutants in the air will be adsorbed into the hydrophilic adsorption layer, so that the indoor air is purified and deodorized. This process is the adsorption process of the hydrophilic adsorption layer of the evaporator 1 on pollutants in the air, and then the desorption and regeneration process of the hydrophilic adsorption layer can be carried out.

[0110] During the desorption and regeneration process, the air volume flowing through the evaporator 1 is reduced by reducing the speed of the fan. Since the cold generated by the evaporation and heat absorption process of the evaporator 1 cannot be taken away by the wind in time, the temperature of the evaporator 1 is reduced (but still maintained above 0°C to avoid frosting of the evaporator 1), which will increase the accumulation of condensed water on the surface of the evaporator 1. The condensed water condenses on the surface of the evaporator 1, displacing the water-soluble pollutants in the hydrophilic adsorption layer, and the water-soluble pollutants are dissolved in the condensed water and drip with the condensed water. Since the amount of condensed water is large, it is equivalent to that the water-soluble pollutants can be washed into the water receiving tray 2 by the condensed water. This process is the desorption process of water-soluble pollutants, which realizes the desorption and regeneration of the hydrophilic adsorption layer and the transfer of water-soluble pollutants from the gas phase to the liquid phase. The condensed water dripping from the evaporator 1 can be discharged to the outside or further treated. In this way, the removal of water-soluble pollutants in the air is achieved, the rapid purification of indoor air is achieved, and the adsorption process and desorption and regeneration process of the hydrophilic adsorption layer are also achieved, and there is no secondary emission, with high broad spectrum.

[0111] In step S202, the evaporator fan can be turned on at rated power, and the compressor can also be turned on at rated power. In step S204, the power of the evaporator fan can be reduced to half of the rated power (of course not limited to half of the rated power) to reduce the speed of the evaporator fan.

[0112] In some exemplary embodiments, please refer to Figure 3 As shown, the control method also includes:

[0113] Based on the determination not to start the humidification function, the condensed water dripping from the evaporator 1 is discharged to the outside.

[0114] In other words, when it is determined not to start the humidification function, there is no need to start the electrolytic purification module 5 and the humidification module 6, but the condensed water dripping from the evaporator 1 can be directly discharged to the outside.

[0115] The air conditioner may include a drain pump, and the condensed water in the water receiving pan 2 may be discharged to the outside by opening the drain pump. The air conditioner may include a drain valve, and the condensed water in the water receiving pan 2 may be discharged to the outside by opening the drain valve.

[0116] In some exemplary embodiments, please refer to Figure 3 As shown, the control method also includes:

[0117] Based on the determination to start the humidification function, the electrolytic purification module 5 of the purification device is started to perform electrolytic purification on the liquid dripping from the evaporator 1;

[0118] Based on the pollutant concentration in the liquid purified by the electrolytic purification module 5 being reduced to within a first set concentration range, the humidification module 6 of the purification device is started;

[0119] Based on the fact that the pollutant concentration in the liquid purified by the electrolytic purification module 5 is not reduced to within the first set concentration range, the process returns to the step of starting the electrolytic purification module 5 of the purification device to electrolytically purify the liquid dripping from the evaporator 1 .

[0120] In other words, in the case of determining to turn on the humidification function, after the desorption regeneration process, the electrolytic purification module 5 is first turned on to electrolytically purify the condensed water containing pollutants to obtain clean condensed water (that is, the pollutant concentration has been reduced to within the first set concentration range). Then the humidification module 6 is turned on to process the clean condensed water to achieve the humidification effect. The first set concentration range can be but is not limited to: pollutant concentration Cl ≤ first set concentration value, and the first set concentration value can be but is not limited to 0.

[0121] In some exemplary embodiments, please refer to Figure 3As shown, the control method further includes: before starting the electrolytic purification module 5 of the purification device, the operating time of the evaporation fan at a reduced speed reaches a second set time.

[0122] This helps to ensure that the water-soluble pollutants adsorbed by the hydrophilic adsorption layer have been fully desorbed and regenerated, so that the water-soluble pollutants have been dissolved into the condensed water, and the condensed water can be electrolytically purified to degrade the water-soluble pollutants into carbon dioxide and water.

[0123] Among them, based on the determination to turn on the humidification function, the second set time length (i.e. Figure 3 The T2 duration in the humidification process can be in the range of, but not limited to, 15 min to 30 min (such as 15 min, 20 min, 25 min, 30 min, etc.) to avoid waiting too long for the humidification process.

[0124] Based on the determination not to turn on the humidification function, the second set time length (i.e. Figure 3 The T1 time in the process may be, but not limited to, in the range of 30 min to 60 min (such as 30 min, 40 min, 50 min, 60 min, etc.) to ensure that the hydrophilic adsorption layer is fully adsorbed before the desorption regeneration process.

[0125] In some exemplary embodiments, please refer to Figure 3 As shown, the control method further includes: before starting the humidification module 6 of the purification device, determining that the start time of the electrolytic purification module 5 reaches a third set time.

[0126] This helps ensure that the water-soluble pollutants in the condensed water are fully degraded and avoids the electrolytic purification device from running continuously for too long.

[0127] The third set time may be, but is not limited to, within the range of 10 to 15 minutes (e.g., 10 minutes, 11 minutes, 12 minutes, 13 minutes, 14 minutes, 15 minutes, etc.). This helps to avoid excessively high condensed water temperature due to excessive electrolysis time, and helps to avoid insufficient electrolysis purification effect due to insufficient electrolysis time.

[0128] In some exemplary embodiments, please refer to Figure 3 As shown, the control method further includes: before reducing the rotation speed of the evaporation fan of the air conditioner, determining that the purification function is turned on and the operating time of the air conditioner cooling operation reaches a first set time.

[0129] This helps to ensure that the hydrophilic adsorption layer of the evaporator 1 fully adsorbs water-soluble pollutants in the air, and then performs a desorption and regeneration process.

[0130] The first set time determines the regeneration time interval of the hydrophilic adsorption layer, that is, the time interval from the start of the adsorption process to the start of the desorption regeneration process. The first set time is related to factors such as whether there is a humidification demand, the thickness of the hydrophilic adsorption layer, and the indoor pollutant concentration.

[0131] In some embodiments, based on the determination to turn on the humidification function, the first set time length (i.e. Figure 3 The T time in the description may be in the range of, but not limited to, 15 min to 35 min (such as 15 min, 20 min, 25 min, 30 min, 35 min, etc.) to avoid waiting too long for the humidification process.

[0132] Based on the determination not to turn on the humidification function, the first set time length (i.e. Figure 3 The T time in the process may be, but is not limited to, within the range of 15 min to 35 min (e.g., 15 min, 20 min, 25 min, 30 min, 35 min, etc.) to ensure that the hydrophilic adsorption layer is fully adsorbed before the desorption regeneration process.

[0133] Based on the fact that there has been no humidification demand for a period of time, the first set time can be the cumulative running time of the air conditioning cooling operation since the last humidification process ended. The first set time can be in the range of but not limited to 5 to 35 days to ensure that the hydrophilic adsorption layer is fully adsorbed before the desorption regeneration process.

[0134] In one embodiment, the surface thickness of the hydrophilic adsorption layer is 5 μm, the daily indoor odor emission is 5 ppm, and there is a need for humidification. The first set time is set to 30 minutes, which can meet the need for humidification for deodorization.

[0135] In some exemplary embodiments, please refer to Figure 3 As shown, the control method also includes:

[0136] Based on the concentration of water-soluble pollutants in the indoor air being reduced to within the second set concentration range, the speed of the evaporating fan is increased to restore the air conditioner to cooling operation;

[0137] Based on the fact that the water-soluble pollutant concentration in the indoor air has not dropped to within the second set concentration range, the speed of the evaporating fan is increased, and the step of controlling the air conditioning cooling operation is returned to allow the hydrophilic adsorption layer of the evaporator 1 to adsorb the water-soluble pollutants.

[0138] The second set concentration range may be, but is not limited to: pollutant concentration Cq≤second set concentration value, and the second set concentration value may be, but is not limited to, 0.

[0139] In other words, when the pollutant concentration of the indoor air has not dropped to within the second set concentration range, it indicates that the indoor air has not been purified, so the speed of the evaporating fan is increased again, and the step of controlling the air conditioning refrigeration operation is returned, that is, the adsorption process is re-executed, and then the desorption process is executed, and this cycle is repeated until the pollutant concentration of the indoor air is reduced to within the second set concentration range.

[0140] When the indoor air pollutant concentration is reduced to within the second set concentration range, it indicates that the indoor air purification is completed, so the speed of the evaporating fan is increased again, and the air conditioner resumes cooling operation. Of course, the air conditioner can also be turned off, or run in other modes according to user needs.

[0141] Among them, if the humidification function does not need to be turned on, the concentration of pollutants in the air can be detected after the fan reduces the speed and runs for the second set time. If the humidification function needs to be turned on, the concentration of pollutants in the indoor air can be detected after the humidification process to avoid affecting the operation of the humidification function.

[0142] In some exemplary embodiments, please refer to Figure 3 As shown, before controlling the air conditioner to operate in a cooling manner so that the hydrophilic adsorption layer of the evaporator 1 adsorbs water-soluble pollutants, the control method further includes:

[0143] Determine whether to turn on the purification function and humidification function;

[0144] Based on the determination of starting the purification function and / or the humidification function, a step of controlling the air conditioner to operate in a cooling manner is performed so that the hydrophilic adsorption layer of the evaporator 1 adsorbs water-soluble pollutants.

[0145] It can be, for example Figure 3 As shown, first determine whether to turn on the purification function, and after determining to turn on the purification function, then determine whether to turn on the humidification function. When it is determined not to turn on the purification function, the air conditioner operates normally for cooling. When it is determined not to turn on the humidification function, only the adsorption process and the desorption process are executed, and the condensed water is directly discharged outdoors, and the electrolytic purification module 5 and the humidification module 6 are not started. When it is determined to turn on the humidification function, after the adsorption process and the desorption process are completed, the electrolytic purification module 5 and the humidification module 6 need to be started.

[0146] Alternatively, it is determined whether to turn on the humidification function first, and then determine whether to turn on the purification function after determining that the humidification function is not turned on. When it is determined that the humidification function is turned on, after the adsorption process and the desorption process are completed, the electrolytic purification module 5 and the humidification module 6 need to be started. When it is determined that the purification function is turned on, only the adsorption process and the desorption process are executed, and the condensed water is directly discharged outdoors, and the electrolytic purification module 5 and the humidification module 6 are not started. When it is determined that the purification function is not turned on, the air conditioner operates normally for cooling.

[0147] Among them, whether to turn on the purification function and the humidification function can be determined by receiving external instructions. The user operation component may be provided with corresponding options (such as buttons, knobs, interactive interfaces, etc.) for the user to choose. It may also be that after the machine is turned on, a reminder message of whether to turn on the humidification function / whether to turn on the purification function is issued for the user to choose and determine, and whether to turn on the purification function and the humidification function is determined according to the user's choice (that is, the command input by the user).

[0148] It can also automatically determine whether to turn on the purification and humidification functions by detecting the pollutant concentration, humidity and other information of the indoor air.

[0149] An embodiment of the present application also provides a control device, including a processor and a memory storing a computer program. When the processor executes the computer program, the steps of the control method in any of the above embodiments are implemented, and thus all the above-mentioned beneficial effects are achieved, which will not be repeated here.

[0150] The processor may be an integrated circuit chip with signal processing capabilities. The above-mentioned processor may be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it may also be a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field-programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components. The methods, steps and logic block diagrams disclosed in the embodiments of the present invention may be implemented or executed. The general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0151] The embodiment of the present application also provides a computer-readable storage medium storing a computer program. When the computer program is executed by a processor, the steps of the control method in any of the above embodiments are implemented, thereby having all the above-mentioned beneficial effects, which will not be repeated here.

[0152] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0153] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0154] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0155] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being “above”, “above”, and “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, and “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0156] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0157] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

[0158] In any one or more of the above exemplary embodiments, the functions described may be implemented in hardware, software, firmware, or any combination thereof. If implemented in software, the functions may be stored on a computer-readable medium or transmitted via a computer-readable medium as one or more instructions or codes, and executed by a hardware-based processing unit. A computer-readable medium may include a computer-readable storage medium corresponding to a tangible medium such as a data storage medium, or a communication medium that facilitates a computer program, such as any medium transmitted from one place to another according to a communication protocol. In this way, a computer-readable medium may generally correspond to a non-temporary tangible computer-readable storage medium or a communication medium such as a signal or carrier wave. A data storage medium may be any available medium that can be accessed by one or more computers or one or more processors to retrieve instructions, codes, and / or data structures for implementing the technology described in the present disclosure. A computer program product may include a computer-readable medium.

[0159] By way of example and not limitation, such computer-readable storage media may include RAM, ROM, EEPROM, CD-ROM or other optical disk storage, magnetic disk storage or other magnetic storage, flash memory, or any other medium that can be used to store the desired program code in the form of instructions or data structures and can be accessed by a computer. Moreover, any connection may also be referred to as a computer-readable medium. For example, if instructions are transmitted from a website, server or other remote source using coaxial cable, fiber optic cable, twisted pair, digital subscriber line (DSL), or wireless technologies such as infrared, radio and microwave, then coaxial cable, fiber optic cable, twisted pair, DSL, or wireless technologies such as infrared, radio and microwave are included in the definition of medium. However, it should be understood that computer-readable storage media and data storage media do not include connections, carrier waves, signals, or other transient (transient) media, but are directed to non-transient tangible storage media. As used herein, disks and optical disks include compact disks (CDs), laser disks, optical disks, digital versatile disks (DVDs), floppy disks, or Blu-ray disks, etc., where disks typically reproduce data magnetically, while optical disks use lasers to reproduce data optically. Combinations of the above should also be included within the scope of computer-readable media.

[0160] For example, instructions may be executed by one or more processors such as one or more digital signal processors (DSPs), general purpose microprocessors, application specific integrated circuits (ASICs), field programmable logic arrays (FPGAs), or other equivalent integrated or discrete logic circuits. Thus, the term "processor" as used herein may refer to any of the above structures or any other structures suitable for implementing the techniques described herein. Additionally, in some aspects, the functionality described herein may be provided within dedicated hardware and / or software modules configured for encoding and decoding, or incorporated in a combined codec. Also, the techniques may be fully implemented in one or more circuits or logic elements.

[0161] The technical solutions of the embodiments of the present disclosure can be implemented in a wide variety of devices or equipment, including wireless mobile phones, integrated circuits (ICs) or a group of ICs (e.g., chipsets). Various components, modules or units are described in the embodiments of the present disclosure to emphasize the functional aspects of the devices configured to perform the described techniques, but they do not necessarily need to be implemented by different hardware units. Instead, as described above, the various units can be combined in a codec hardware unit or provided by a collection of interoperable hardware units (including one or more processors as described above) in combination with suitable software and / or firmware.

Claims

1. A purification device, characterized in that: include: The evaporator has a hydrophilic adsorption layer on its surface, and the hydrophilic adsorption layer is configured to adsorb water-soluble pollutants so that the water-soluble pollutants are dissolved in condensed water condensed on the surface of the evaporator and drip with the condensed water.

2. The purification device according to claim 1, characterized in that: The hydrophilic adsorption layer comprises a mixture of MXene and hydrophilic carbon nanotubes.

3. The purification device according to claim 2, characterized in that: The amount ratio of the MXene to the hydrophilic carbon nanotube is in the range of 8:1 to 1:

2.

4. The purification device according to claim 2, characterized in that: The hydrophilic adsorption layer includes a base layer disposed on the surface of the evaporator and a surface layer disposed on the surface of the base layer, and the surface layer includes a mixture of the MXene and hydrophilic carbon nanotubes.

5. The purification device according to claim 4, characterized in that: The surface layer is a topcoat coating, and the slurry of the topcoat coating includes: a MXene suspension, a hydrophilic carbon nanotube dispersion, an adhesive and water; The total mass of the MXene and the hydrophilic carbon nanotubes accounts for 3% to 10% of the total mass of the slurry; The drying temperature of the topcoat layer is in the range of 45°C to 65°C.

6. The purification device according to claim 4, characterized in that: The thickness of the surface layer is in the range of 2 μm to 15 μm; and / or The base layer is an epoxy coating.

7. The purification device according to any one of claims 1 to 6, characterized in that: Also includes: A water receiving tray is provided below the evaporator and is configured to collect condensed water dripping from the evaporator; and an electrolytic purification module, configured to perform electrolytic purification on the liquid dripping from the evaporator; The electrodes of the electrolytic purification module are arranged in the water receiving tray; or, the electrolytic purification module is arranged downstream of the water receiving tray and communicated with the water receiving tray, and is configured to collect liquid discharged from the water receiving tray and perform electrolytic purification treatment.

8. The purification device according to claim 7, characterized in that: Also includes: The humidification module is configured to humidify the liquid purified by the electrolytic purification module.

9. The purification device according to claim 7, characterized in that: The electrolytic purification module is arranged downstream of the water receiving tray and is in communication with the water receiving tray; Wherein, the purification device further comprises: a filtering module, which is arranged between the water receiving tray and the electrolytic purification module and is configured to filter the liquid discharged from the water receiving tray; and / or The electrolytic purification module is provided with a feeding port, and the feeding port is configured to add electrolyte into the electrolytic purification module.

10. The purification device according to claim 7, characterized in that: Also includes: A first detection component, configured to detect the concentration of pollutants in the liquid purified by the electrolytic purification module; and / or The second detection component is configured to detect the pollutant concentration of the gas to be flowed to the evaporator.

11. An air conditioner, characterized in that: include: The purification device according to any one of claims 1 to 10.

12. The air conditioner according to claim 11, characterized in that: It also includes a casing, the evaporator and the water receiving tray of the purification device are arranged in the casing, and the electrolytic purification module and the humidification module of the purification device are arranged outside the casing.

13. A control method, characterized in that: For the air conditioner according to claim 11 or 12, the control method comprises: Controlling the air conditioner to operate in a refrigerating manner so that the hydrophilic adsorption layer of the evaporator adsorbs water-soluble pollutants in the air; The rotation speed of the evaporation fan of the air conditioner is reduced, so that the water-soluble pollutants adsorbed by the hydrophilic adsorption layer are dissolved into the condensed water condensed on the evaporator and drip with the condensed water.

14. The control method according to claim 13, characterized in that: Also includes: Based on the determination that the humidification function is not turned on, the condensed water dripping from the evaporator is discharged outdoors.

15. The control method according to claim 13, characterized in that: Also includes: Based on the determination to start the humidification function, the electrolytic purification module of the purification device is started to perform electrolytic purification on the liquid dripping from the evaporator; Based on the pollutant concentration in the liquid purified by the electrolytic purification module being reduced to within a first set concentration range, the humidification module of the purification device is started.

16. The control method according to claim 15, characterized in that: Also includes: Before starting the electrolytic purification module of the purification device, the evaporation fan is operated at a reduced speed for a second set time; Before starting the humidification module of the purification device, determining that the activation time of the electrolytic purification module reaches a third set time; Based on the fact that the pollutant concentration in the liquid purified by the electrolytic purification module has not dropped to within the first set concentration range, the step of starting the electrolytic purification module of the purification device to electrolytically purify the liquid dripping from the evaporator is returned to execution.

17. The control method according to any one of claims 13 to 16, characterized in that: Also includes: Before reducing the rotation speed of the evaporation fan of the air conditioner, it is determined that the purification function is turned on and the operation time of the cooling operation of the air conditioner reaches a first set time.

18. The control method according to any one of claims 13 to 16, characterized in that: Also includes: Based on the fact that the concentration of water-soluble pollutants in the indoor air has not dropped to within the second set concentration range, the rotation speed of the evaporating fan is increased, and the step of controlling the air-conditioning refrigeration operation to allow the hydrophilic adsorption layer of the evaporator to adsorb water-soluble pollutants is returned to.

19. The control method according to any one of claims 13 to 16, characterized in that: Before controlling the air conditioner to operate in a refrigerating manner so that the hydrophilic adsorption layer of the evaporator adsorbs water-soluble pollutants, the method further includes: Determine whether to turn on the purification function and humidification function; Based on the determination of starting the purification function and / or the humidification function, the step of controlling the air conditioner to operate in a cooling manner so that the hydrophilic adsorption layer of the evaporator adsorbs water-soluble pollutants is performed.

20. A control device, characterized in that: The system comprises a processor and a memory storing a computer program, wherein when the processor executes the computer program, the steps of the control method according to any one of claims 13 to 19 are implemented.

Images