CN114087761A - Air conditioning equipment, control method and device - Google Patents
Air conditioning equipment, control method and device Download PDFInfo
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- CN114087761A CN114087761A CN202010856029.5A CN202010856029A CN114087761A CN 114087761 A CN114087761 A CN 114087761A CN 202010856029 A CN202010856029 A CN 202010856029A CN 114087761 A CN114087761 A CN 114087761A
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 74
- 238000000034 method Methods 0.000 title claims abstract description 48
- 239000007788 liquid Substances 0.000 claims abstract description 124
- 239000007921 spray Substances 0.000 claims abstract description 98
- 238000005507 spraying Methods 0.000 claims abstract description 77
- 238000001514 detection method Methods 0.000 claims description 94
- 238000003860 storage Methods 0.000 claims description 16
- 238000000576 coating method Methods 0.000 claims description 7
- 239000011248 coating agent Substances 0.000 claims description 5
- 238000009423 ventilation Methods 0.000 claims description 3
- 239000003344 environmental pollutant Substances 0.000 abstract description 11
- 231100000719 pollutant Toxicity 0.000 abstract description 11
- 238000002955 isolation Methods 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 43
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- 239000012153 distilled water Substances 0.000 description 2
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Images
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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/20—Casings or covers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
-
- 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
- F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
-
- 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
- F24F1/0063—Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the 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
- 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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G9/00—Cleaning by flushing or washing, e.g. with chemical solvents
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/20—Casings or covers
- F24F2013/205—Mounting a ventilator fan therein
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses air conditioning equipment, a control method and a device, wherein a spraying device is controlled to start to spray liquid on at least one of a heat exchanger, a wind wheel and an air duct before or while a fan is started, so that at least one of the heat exchanger, the wind wheel and the air duct is covered with a layer of liquid film in advance before pollutants enter the air conditioning equipment to keep a wet state, the pollutants cannot adhere to the surface of at least one of the heat exchanger, the wind wheel and the air duct when entering the air conditioning equipment, but are in contact with the liquid film and discharged under the isolation of the liquid film, the interior of the air conditioning equipment is kept clean, and the generation of pollution is effectively inhibited. The invention, as air conditioning equipment, a control method and a device, can be widely applied to the technical field of air conditioners.
Description
Technical Field
The invention relates to the field of air conditioners, in particular to air conditioning equipment, a control method and a control device.
Background
Along with the continuous improvement of the comfort requirement of people to air conditioning equipment, the requirement to air conditioning equipment is also higher and higher, and when air conditioning equipment is installed in different environments, different requirements need to be adapted to. For example, when a user uses the air conditioning equipment to improve cooking experience, pollutants such as oil smoke are easily accumulated in the air conditioning equipment, especially when the air conditioning equipment is just started, the oil smoke is easily attached to devices inside the air conditioning equipment, such as a heat exchanger, an air duct, a fan and the like, so that the use of the air conditioning equipment is affected by pollution, substances in the oil smoke can generate thermal oxidative decomposition under certain conditions (such as high temperature), secondary reaction can be generated among decomposition products of the substances, and harmful substances such as aldehyde and ketone are generated, so that peculiar smell can be generated inside the air conditioning equipment under the action of microorganisms, and the use experience of the user is affected.
Disclosure of Invention
The embodiment of the application provides air conditioning equipment, a control method and a control device, which can inhibit pollutants from attaching to the inside of the air conditioning equipment.
According to a first aspect of embodiments of the present application, there is provided an air conditioning apparatus including:
the air inlet, the air duct and the air outlet form a ventilation loop;
a heat exchanger disposed within the housing;
the fan comprises a wind wheel and is used for supplying air to the air duct and the heat exchanger;
the spraying device is used for spraying liquid to at least one of the heat exchanger, the wind wheel and the air duct;
and the control module is used for controlling the fan to start and controlling the spraying device to start before or while controlling the fan to start.
In the embodiment of the application, control module can be before the fan starts or when the fan starts, control spray set starts right the heat exchanger the wind wheel with at least one in the wind channel carries out spraying of liquid, makes before pollutant gets into air conditioning equipment inside the heat exchanger the wind wheel with thereby at least one in the wind channel covers one deck liquid film and keeps moist state, can't adhere when making pollutant get into the heat exchanger the wind wheel with the surface of at least one in the wind channel, but with the contact of liquid film and discharge, guarantee the inside cleanness and the result of use of air conditioning equipment, restrain the production of pollution.
Optionally, in an embodiment of the present application, the spraying device includes a rail and a spray head, the spray head is located on the rail and is configured to be movable along the rail, one of the rail and the spray head is configured to be rotatably movable along a direction perpendicular to an extending direction of the rail, and the spray head is used for spraying the liquid.
In the embodiment of the application, the rail and the spray head are arranged in a moving mode, so that the spray head can comprehensively spray the liquid to at least one of the heat exchanger, the wind wheel and the air duct.
In addition, according to the air conditioning equipment of the above embodiment of the present application, the following additional technical features may also be provided:
still include the filter screen, the filter screen set up in the wind channel with between the air outlet.
In the embodiment of the application, through setting up the filter screen can prevent liquid is followed the air outlet overflows.
Optionally, in an embodiment of the present application, the control module includes:
the detection unit is used for acquiring detection parameters of the heat exchanger or the air duct, and the detection parameters are used for representing humidity;
and the control unit is used for controlling the spraying device to be started and closed according to the detection parameters and a preset threshold value.
In the embodiment of the application, through acquireing and being used for the sign humidity detection parameter, and according to detection parameter and preset threshold control spray set's start-up and closing can guarantee when liquid film thickness (humidity) reduces spray set is in the starting condition and improves liquid film thickness (humidity), and when liquid film thickness (humidity) is enough, closes spray set is with the energy can be saved.
Optionally, in an embodiment of the present application, the heat exchanger or the air duct has a first side and a second side, the liquid flows from the first side to the second side, and the detection unit is disposed on the first side.
In the embodiment of the application, the detection unit is arranged on the first side with the lowest thickness of the formed liquid film, so that the control unit can timely start the spraying device when the thickness of the liquid film is reduced.
In addition, according to the air conditioning equipment of the above embodiment of the present application, the following additional technical features may also be provided:
and a lyophilic coating is arranged on the surface of at least one of the heat exchanger, the wind wheel and the air duct.
In the embodiment of the application, through setting up the lyophilic coating, make liquid is moist easily the heat exchanger the wind wheel with at least one in the wind channel makes spray set can reach better moist effect.
According to a second aspect of embodiments of the present application, there is provided a control method applied to the air conditioning apparatus of the first aspect, including the steps of:
before the fan is controlled to be started, the spraying device is controlled to be started to spray liquid on the air conditioning component;
or,
controlling a spraying device to start to spray liquid to the air conditioning component while controlling the fan to start;
wherein the air conditioning assembly includes at least one of a heat exchanger, a wind wheel, and an air duct.
In the embodiment of the application, before the fan starts or when the fan starts, control spray set start right the heat exchanger the wind wheel with at least one in the wind channel carries out spraying of liquid for before the pollutant gets into air conditioning equipment inside the heat exchanger the wind wheel with thereby at least one kind in the wind channel covers the one deck liquid film and keeps moist state, can't adhere when making the pollutant get into the heat exchanger the wind wheel with the surface of at least one in the wind channel, but with the contact of liquid film and discharge, guarantee the inside cleanness and the result of use of air conditioning equipment, restrain the production of pollution.
Optionally, in an embodiment of the present application, the controlling the spraying device to start spraying the liquid to the air conditioning assembly includes the following steps:
and controlling the spray device to start and move in one of a direction along which the spray device extends and a direction perpendicular to the direction in which the spray device extends so as to spray the liquid on the air-conditioning assembly.
In the embodiment of the application, different moving modes are realized by controlling the spraying device, so that the spray head can comprehensively spray the liquid to at least one of the heat exchanger, the wind wheel and the air duct.
Optionally, in an embodiment of the present application, after the step of controlling the spraying device to start spraying the liquid to the air conditioning assembly, the method further includes the following steps:
acquiring a first detection parameter of the heat exchanger or the air duct, wherein the first detection parameter is used for representing humidity;
determining that the first detection parameter is larger than a preset threshold value, and controlling the spraying device to be closed;
and controlling the fan to start, or controlling the fan and the compressor to start.
In the embodiment of the application, it is determined that the first detection parameter is greater than the preset threshold value, the spraying device is controlled to be closed, and it is ensured that the air conditioner component is fully wetted before the fan or the fan and the compressor are started.
Optionally, in an embodiment of the present application, the method further includes the following steps:
acquiring a second detection parameter of the heat exchanger or the air duct before the fan is in a starting state and an air conditioner shutdown instruction is confirmed to be received, wherein the second detection parameter is used for representing humidity;
and determining that the second detection parameter is less than or equal to a preset threshold value, and controlling the spraying device to start.
In the embodiment of the application, before the fan is in the on-state and confirms that the air conditioner shutdown instruction is received, acquire the second detection parameter, confirm the second detection parameter is less than or equal to and predetermines the threshold value, control spray set starts, when passing through when liquid sprays the liquid film thickness (humidity) that produces and reduces, can in time control spray set starts to in time improve the thickness (humidity) of liquid film.
Optionally, in an embodiment of the present application, the method further includes the following steps:
and before the fan is in a starting state and the receiving of an air conditioner shutdown instruction is confirmed, determining that the second detection parameter is greater than the preset threshold value, and controlling the spray device to be closed.
In the embodiment of the application, when the second detection parameter increases to be greater than the preset threshold value, the spraying device is closed in time, and the loss of energy can be reduced on the premise that the thickness (humidity) of the liquid film is enough.
Optionally, in an embodiment of the present application, the method further includes the following steps:
confirming that an air conditioner shutdown instruction is received, controlling the spray device to be closed, or controlling the spray device and the compressor to be closed, and acquiring a third detection parameter of the heat exchanger or the air duct, wherein the third detection parameter is used for representing humidity;
and confirming that the third detection parameter is less than or equal to a preset threshold value, and controlling the fan to be closed.
In the embodiment of the application, when receiving the air conditioner shutdown instruction, close spray set, perhaps close spray set and compressor, when confirming the third detection parameter is less than or equal to preset threshold value, closes the fan for after air conditioning equipment closes, air conditioning equipment is inside to keep dry and clear state.
According to a third aspect of embodiments herein, there is provided an apparatus comprising:
at least one processor;
at least one memory for storing at least one program;
when the at least one program is executed by the at least one processor, the at least one processor is caused to implement the control method of the second aspect.
According to a fourth aspect of embodiments of the present application, there is provided an air conditioning apparatus including the device of the third aspect.
According to a fifth aspect of embodiments of the present application, there is provided a storage medium storing a program for implementing the control method of the second aspect when executed by a processor.
Drawings
Fig. 1 is a block diagram showing a partial configuration of an air conditioning apparatus according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of an air conditioning apparatus according to an embodiment of the present application;
FIG. 3 is a flowchart illustrating steps of a control method according to an embodiment of the present application;
FIG. 4 is a schematic control flow diagram of an air conditioning apparatus according to an embodiment of the present disclosure at different operation stages;
fig. 5 is a schematic diagram of an apparatus according to an embodiment of the present disclosure.
Detailed Description
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments. The terms "first," "second," "third," and "fourth," etc. in the description and claims of this application and in the accompanying drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions.
Referring to fig. 1 and 2, in the present embodiment, there is provided an air conditioning apparatus including an indoor unit and an outdoor unit. Alternatively, the indoor unit includes, but is not limited to, a kitchen or other place where it can possibly absorb oil smoke, such as a living room and a bedroom, etc. (oil smoke may enter the living room or the bedroom when the door of the kitchen is not closed). The indoor unit comprises a heat exchanger 1, a fan 2 (comprising a wind wheel 21), a spraying device 3, a control module 4, a shell 5 (provided with an air duct 51), a filter screen 6, a water pan (not shown) and a drain pipe (not shown); the outdoor unit includes a compressor 8. In this embodiment, only some components are proposed for explaining the present invention, and it is understood that the indoor unit and the outdoor unit may further include other components included in other existing air conditioners to implement corresponding functions.
Referring to fig. 2, in the present embodiment, an air duct 51 is formed in the housing 5, an air inlet 52 and an air outlet 53 are formed on the housing 5, both the air inlet 52 and the air outlet 53 are communicated with the air duct 51, and when air enters from the air inlet 52, the air can be discharged from the air outlet 53 through the air duct 51, that is, the air inlet 52, the air duct 51 and the air outlet 53 form a ventilation loop. The air duct 51 has a first side and a second side, and when the surface of the air duct 51 is sprayed with liquid, the liquid flows from the first side to the second side by gravity.
Referring to fig. 2, in the present embodiment, the heat exchanger 1 is disposed in the housing 5, disposed adjacent to the air inlet 52 and around the air duct 51, for exchanging heat with air entering from the air inlet 52. It is understood that the surrounding of the wind tunnel 51 means at least a part of the wind tunnel 51, and the heat exchanger 1 is a part of an enclosure enclosing the wind tunnel 51 and is disposed around a part of the wind tunnel 51 in the embodiment. The heat exchanger 1 also has a first side and a second side, and when the surface of the heat exchanger 1 is sprayed with liquid, the liquid flows from the first side to the second side under the action of gravity.
Referring to fig. 2, in this embodiment, the fan 2 includes the wind wheel 21 disposed in the air duct 51, and the fan 2 is started to drive the wind wheel 21 to rotate, so as to supply air from the air inlet 52 to the air duct and the heat exchanger, and thus, the air processed by the heat exchanger 1 is conveyed to the air outlet 53 through the air duct 51.
Referring to fig. 2, in the present embodiment, the spraying device 3 is disposed in the air duct 51 between the heat exchanger 1 and the wind wheel 21. The spraying device 3 comprises a track 31, a spray head 32, a water filling assembly and a liquid storage tank. It is understood that the sprinkler 3 is disposed within the air chute 51, meaning that at least one or more of the track 31, the spray head 32, the water injection assembly, and the liquid storage tank are disposed within the air chute 51. Alternatively, the rail 31 is disposed in the air duct 51, the spray head 32 is disposed on the rail 31, the rail 31 extends along the extending direction (axial direction) of the air duct, and the spray head 32 can move along the rail 31 in the axial direction. In the present embodiment, the spray head 32 can rotate and move in the circumferential direction perpendicular to the axial direction, so that the spray head 32 can effectively and completely spray the liquid at various positions on the heat exchanger 1, the wind wheel 21, and the air duct 51 during the spraying of the liquid. In other embodiments, the rail 31 may be configured to rotate circumferentially, so that the spray head 32 can spray the liquid to all positions on the heat exchanger 1, the wind wheel 21, and the wind duct 51.
In the embodiment, the spray head 32 is communicated with the liquid storage tank through the water injection assembly, and the positions of the spray head 32 and the liquid storage tank can be set at different positions in the shell 5 according to actual requirements. The liquid storage tank is used for storing the liquid sprayed, the capacity of the liquid storage tank can be adjusted according to actual needs, optionally, the liquid storage tank is provided with a water inlet and a water outlet, the water inlet can be connected with a water faucet or can inject the liquid from the water inlet in other modes, and the water outlet is connected with a water injection assembly which is used for conveying the liquid to the spray head 32 for spraying. The water injection assembly may be, for example, a water pump, optionally a silent water pump, so that no noise is emitted during use, which may affect the user's experience.
It is understood that liquids include, but are not limited to, water, aqueous solutions containing detergents or surfactants. The spraying of the liquid by the spray head 32 is equivalent to forming a liquid film (increasing humidity) on the surface of the spraying object, and the form of the liquid sprayed by the spray head 32 includes, but is not limited to, mist or column, and the like, and can be adjusted according to actual requirements. Taking liquid as water as an example, the spray head 32 sprays the liquid in the form of water mist or water column, and the surface of the object to be sprayed is formed with a water film.
In this embodiment, the filter screen 6 is disposed near the air outlet 53 and located between the air duct 51 and the air outlet 53, so that the spray head 32 prevents the liquid from overflowing when spraying the liquid, thereby avoiding the waste of the liquid on the one hand, and avoiding the air discharged from the air outlet 53 having the liquid on the other hand, which affects the use experience of the user.
In this embodiment, the water pan is disposed at the second side of the heat exchanger 1, and the liquid film formed by spraying on the heat exchanger 1 and the generated condensed water flow to the water pan under the action of gravity and are then discharged through a drain pipe connected to the water pan. It can be understood that the liquid on the wind wheel 21 and the liquid on the air duct 51 can also flow to the water pan under the action of gravity; or in some embodiments, a plurality of water receiving trays may be provided for receiving liquid from the wind wheel 21 and the wind tunnel 51, respectively, discharging through a plurality of separately configured drainage pipes, and the like.
In this embodiment, the surfaces of the heat exchanger 1, the wind wheel 21 and the air duct 51 are all provided with lyophilic coatings, the lyophilic coatings refer to molecules with polar groups, the molecules have affinity to liquid and can attract liquid or dissolve in the liquid, and the molecules can be well formed on the surface of a solid material, so that the heat exchanger 1, the wind wheel 21 and the air duct 51 can be wetted by the liquid, and the spraying effect of the spraying device 3 is ensured. It will be appreciated that in some embodiments, a lyophilic coating may be provided on one or both of the heat exchanger 1, the wind wheel 21 and the wind tunnel 51 to enhance the wetting of parts of the device by liquid.
In the present embodiment, the control module 4 includes a detection unit and a control unit. The detection unit is used for acquiring detection parameters of the heat exchanger 1 or the air duct 51, the detection parameters are used for representing humidity (liquid film thickness), and when the air conditioning equipment is in an operation state of different stages, the detection parameters include, but are not limited to, a first detection parameter, a second detection parameter and a third detection parameter which are specifically divided; it can be understood that the setting position of the detection unit can be adjusted according to actual requirements, and since the liquid will flow from the first side of the heat exchanger 1 to the second side of the heat exchanger 1 under the action of gravity, or will flow from the first side of the air duct 51 to the second side of the air duct 51, the humidity (liquid film thickness) on the first side of the heat exchanger 1 or the first side of the air duct 51 is the lowest, and therefore in this embodiment, the detection unit is set on the first side of the heat exchanger 1 or the first side of the air duct 51, so that the detection unit can control the spraying device 3 in time through the control unit after acquiring the detection parameters. It should be noted that, a better effect can be obtained by disposing the detection unit on the air duct 51, because if the compressor is running, the air conditioning equipment is in a refrigeration state, the surface of the heat exchanger 1 can generate condensed water in addition to the liquid film generated by spraying, that is, the liquid film on the surface of the heat exchanger 1 actually contains the condensed water and the liquid film generated by spraying, so that the speed of reducing the thickness of the liquid film on the surface of the heat exchanger 1 is slow, or keeps or even thickens, if the detection unit is disposed on the heat exchanger 1, it may cause the control unit not to control the spraying device 3 to start, so that the thickness (humidity) of the liquid film on the air duct 51 is continuously reduced or even disappears, and the detection unit cannot play a role of protection, and disposing the detection unit on the air duct 51 can avoid the above situation.
It can be understood that the detection parameters include, but are not limited to, current, voltage, power, etc., in this embodiment, taking the detection parameter as current I, the detection unit is disposed on the surface of the air duct 51 as an example, two electrodes are selected on the surface of the air duct 51, the two electrodes are spaced apart by a certain distance (including, but not limited to, 1cm), a voltage V is applied between the two electrodes (which can be adjusted according to requirements), and assuming that the resistance between the two electrodes is R, it can be understood that the resistance R changes with the thickness change of the liquid film, and I ═ V/R, so that the change of the thickness (humidity) of the liquid film, that is, the change of the characteristic humidity, can be detected by detecting the change of the current I.
In this embodiment, the control unit has functions of receiving an instruction, setting a preset threshold value, and controlling the spray device 3, the fan 2, and the compressor 8. The command includes, but is not limited to, an air conditioner on command and an air conditioner off command. The preset threshold may be adjusted according to the actual situation and the type of the detected parameter, and in this embodiment, the preset threshold a is a ratio of the fixed voltage Vs to a fixed resistance (including but not limited to 2000 Ω). For example, when I ≦ A, the surface of the air passage 51 is considered dry, and when I > A, the surface of the air passage 51 is considered wet.
In this embodiment, the control unit can control the spray device 3 to be turned on or off according to the detection parameter and the preset threshold value. For example, after receiving an air conditioner starting instruction, before controlling the fan 2 to start or while controlling the fan 2 to start, the spraying device 3 is controlled to start to spray liquid to at least one of the heat exchanger 1, the wind wheel 21 and the air duct 51 until I (first detection parameter) > a (first time), and the spraying device 3 is controlled to close, so that before pollutant (such as oil smoke) enters the air conditioner, the heat exchanger 1, the wind wheel 21 and the air duct 51 are covered with a layer of liquid film in advance to keep a wet state, so that the pollutant (such as oil stain) cannot adhere to the surfaces of the heat exchanger 1, the wind wheel 21 and the air duct 51 and contacts with the liquid film under the isolation effect of the liquid film, and can flow together with the gravity effect of the liquid film to keep the inside of the air conditioner clean and keep/improve the use effect. It can be understood that if air conditioning equipment is in refrigerated mode, if the pollutant matter in the oil smoke adheres to the surface of heat exchanger 1, can make heat exchanger 1's fin hydrophilicity reduce, except there being the problem of pollution, still influenced heat exchanger 1's heat exchange efficiency, spray liquid on heat exchanger 1 promptly, can obtain simultaneously and prevent to pollute and can keep heat exchanger 1's heat exchange efficiency's effect. In this embodiment, optionally, when the spraying device is in the activated state and the fan is in the deactivated state, the fan is controlled to be activated within a preset time after the spraying device is controlled to be deactivated, where the preset time includes, but is not limited to, 0 to 5 seconds.
In the present embodiment, in order to achieve the best anti-pollution effect, the heat exchanger 1, the wind wheel 21 and the air duct 51 are all sprayed with liquid, and in other embodiments, one or two of the heat exchanger 1, the wind wheel 21 and the air duct 51 may be sprayed with liquid, so as to achieve the effect of reducing pollution to a certain extent. It will be appreciated that the control of the spray device 3 by the control unit may be adjusted according to the actual circumstances, including but not limited to the moving speed of the spray head 32 or the rail 31, the rotating speed, the form of the liquid spray of the spray head 32, the speed of the liquid spray and the order of the liquid spray, etc. When it reaches I1(first detection parameter) > A (for the first time), after the spraying device 3 is controlled to be closed, at least one of the fan 2 and the compressor is controlled to be started, for example, the air conditioning equipment is in a refrigeration mode, the fan 2 and the compressor are both started, it can be understood that the starting sequence of the fan 2 and the compressor can be adjusted according to actual conditions, when the fan 2 and the compressor are both started and the air conditioning shutdown instruction is not received, the detection unit obtains the detection parameter (specifically, the second detection parameter) in real time, and when I is detected, the detection parameter (specifically, the second detection parameter) is obtained in real time2(the second detection parameter) is less than or equal to A, the control unit controls the spray device 3 to start, keeps the heat exchanger 1, the wind wheel 21 and the air duct 51 wet, and prevents the thickness of the liquid film from reducing or disappearing. And when receiving an air conditioner shutdown instruction, controlling the spray device 3 to be closed and the compressor to be closed, the detection unit acquires a detection parameter (specifically, a third detection parameter) in real time, and when I3When the third detection parameter is less than or equal to A, the fan 2 is closed, otherwise, the starting state of the fan 2 is maintained until I3A is less than or equal to A, so that the interior of the air conditioning equipment is kept in a dry and clean state. It is understood that the above-mentioned control of the turning off of the sprinkler 3 means that the sprinkler 3 is in a turned-off state, the sprinkler 3 is turned off when the sprinkler 3 is in a turned-on state, and the turned-off state is maintained when the sprinkler 3 is in a turned-off state; if an air conditioner shutdown command is received, I3A is less than or equal to A, and the spraying device 3, the compressor and the fan 2 can be closed simultaneously.
Referring to fig. 3, the present application also provides a control method applied to an air conditioning apparatus, including the steps of:
s1, confirming that an air conditioner starting instruction is received;
s2, controlling the spraying device to start to spray liquid to the air conditioning assembly before controlling the fan to start;
or controlling the starting of the fan and the starting of the spraying device to spray liquid on the air conditioning component;
the air conditioning assembly comprises at least one of a heat exchanger, a wind wheel and an air duct;
and S3, controlling the states of the spraying device and the fan according to the detection parameters and the air conditioner closing instruction at different operation stages of the air conditioning equipment.
In the present embodiment, the air conditioning assembly includes a heat exchanger, a wind wheel and an air duct, and in other embodiments, the air conditioning assembly may be one or two of the heat exchanger, the wind wheel and the air duct.
The control method in the embodiment of the present application will be described below with reference to the above-described embodiment of the air conditioner.
Specifically, in the present embodiment, the process from start-up to shut-down of the air conditioning apparatus is divided into three operation phases, a first phase T1, a second phase T2 and a third phase T3, specifically:
referring to fig. 4, in the first stage T1, after receiving the air conditioner start command, the control unit controls the spray device to start spraying liquid onto the air conditioner component, and optionally controls the spray device to start and move in at least one of the direction in which the spray device extends and the direction perpendicular to the extending direction of the spray device during the liquid spraying process, so as to spray liquid onto the air conditioner component, where the extending direction of the spray device optionally refers to the extending direction (axial direction) of the rail, specifically, the spray head can be controlled to move in the axial direction, and the spray head or the rail can be controlled to rotate in the circumferential direction, it can be understood that the moving speed of the spray head, the rotating speed of the spray head or the rail, the amount of liquid spraying, and the type/form of liquid spraying (such as water mist or water column) can be controlled according to actual needs, or can be set and adjusted by the control unit, the first stage T1 is divided into two cases (1) and (2):
(1) the method comprises the steps of controlling a spraying device to start to spray liquid to an air conditioner component before controlling a fan to start, wherein a compressor can be started or can be kept in a closed state in this stage, obtaining the detection parameters (namely the detection parameters of a heat exchanger or an air duct, specifically, the first detection parameters) in real time, when the first detection parameters are smaller than or equal to a preset threshold value, keeping the starting state of the spraying device until the first detection parameters are larger than the preset threshold value, controlling the spraying device to be closed, and in this stage, the fan is kept in the closed state until the first detection parameters are larger than the preset threshold value, and starting the fan.
(2) The method comprises the steps of controlling a spraying device to start to spray liquid to an air conditioner component while controlling a fan to start, wherein a compressor can be started and can also be kept in a closed state in the stage, and also obtaining a first detection parameter in real time, when the first detection parameter is smaller than or equal to a preset threshold, the starting state of the spraying device is kept, the spraying device is controlled to be closed until the first detection parameter is larger than the preset threshold, the moving speed of a sprayer can be accelerated in the condition, or the track, the rotating speed of the sprayer, the spraying amount of the liquid or the spraying type of the liquid is changed, the wetting speed of the liquid to the air conditioner component is accelerated, and the wetting speed can be accelerated under the relative condition (1), so that the first detection parameter can exceed the preset threshold more quickly, the fan is started, and the starting speed of the fan can be accelerated. It can be understood that, if the fan starts simultaneously and when the spray set starts, the first detection parameter is less than or equal to the preset threshold value, the fan needs to be closed until the first detection parameter is greater than the preset threshold value, and then the fan is restarted, and the condition (1) can ensure that the air conditioner component is restarted after being sufficiently wetted, and the occurrence of the condition can be avoided. Therefore, the selection mode is determined according to the actual requirement.
It can be understood that, in the embodiment, taking the air conditioning equipment as an example to perform a refrigeration process, the control related to the spraying device, the fan and the compressor is required in the formal refrigeration process of the air conditioning equipment, for example, the spraying device, the fan and the compressor are started/shut off; while in other embodiments the air conditioning apparatus may be in a blowing mode involving control of the spray unit and the fan, e.g., turning the spray unit and the fan on/off, optionally without involving control of the compressor on/off, as will be described later.
Therefore, when the air conditioning equipment performs a refrigeration process, in the condition (1) of the stage T1, namely T1- (1), the compressor can be started before the fan is started, or when the first detection parameter is larger than the preset threshold value, the fan and the compressor are started, namely T1- (1) is completed, and both the fan and the compressor are started; in the case of stage T1 (2), i.e., T1- (2), the compressor can be started at any time in T1- (2), and likewise, after T1- (2) is completed, both the fan and the compressor are started. It is understood that starting the compressor means starting the compressor if the compressor is not started and maintaining the starting state of the compressor if the compressor has been started.
When the first detection parameter is detected to be greater than the preset threshold for the first time and the air conditioner shutdown instruction is not received, the second stage T2 is entered. In a second stage T2, acquiring detection parameters (specifically, second detection parameters) in real time, and controlling a spraying device to start when the second detection parameters are smaller than or equal to a preset threshold value, so that a spray head sprays on an air conditioning assembly, and the thickness (humidity) of a liquid film on the air conditioning assembly is increased to realize the effect of inhibiting pollution; and when the second detection parameter is larger than the preset threshold value, controlling the spray device to be closed, and circularly performing the process. And when the second detection parameter is larger than the preset threshold value, the spraying device is controlled to be closed, so that liquid can be saved, and the energy consumption for controlling the spraying device is reduced.
When an air conditioner shutdown instruction is received, entering a third stage T3, optionally first controlling the spray device to be turned off, where it is understood that controlling the spray device to be turned off refers to controlling the spray device to be turned off when the spray device is in a startup state, or maintaining the spray device in a shutdown state; alternatively, the compressor is controlled to be turned off at the same time as the spray device is controlled to be turned off, or before/after the spray device is controlled to be turned off, it being understood that the compressor is turned off before the fan is turned off. In the stage, a detection parameter (specifically, a third detection parameter) is obtained in real time, and when the third detection parameter is greater than a preset threshold, the starting state of the fan is maintained; and when the third detection parameter is less than or equal to the preset threshold value, the fan is turned off, so that the interior of the air conditioning equipment is in a dry and clean state when the air conditioning equipment stops operating.
It is understood that the times of T1, T2 and T3 may be set according to actual requirements, including but not limited to 0.5h-4 h. In other embodiments, the control unit may detect the liquid storage amount of the liquid storage tank, control the time duration of the T1, T2, T3, or prompt the user when the liquid storage tank is below a predetermined level.
The contents in the above-mentioned device embodiments are all applicable to the method embodiments, and the functions implemented in the method embodiments are the same as those in the above-mentioned device embodiments.
In order to verify the anti-pollution effect of the invention, when the air conditioning equipment is in a refrigeration state, a test is carried out by taking the heat exchanger as an object and taking liquid as water, and test data of the existing air conditioning equipment which is not controlled by the control method are compared, specifically: the heat exchanger with the size of 25cm multiplied by 35cm is adopted, the blended oil is heated to 300 ℃ to generate oil vapor, a sample is suspended above the heat exchanger, the period of refrigeration starting for 3h and shutdown for 2h is taken as one period, and after different periods, the hydrophilic angle of the fin and the oil content in discharged condensed water are tested.
Specifically, the method comprises the following steps: 1. test of variation of hydrophilic angle on fins: distilled water is added into a drop regulator, the drop regulator is fixed on a main machine, a micrometer head is rotated, a proper amount of distilled water (10 mu L) forms a water drop on a needle head, the water drop is moved to the surface of a sample, and the water drop is positioned in the center of an ocular lens. When the liquid drops stand on the sample wafer for 60 seconds and the water drops are not spread any more, rotating the cross line in the ocular lens to make a tangent line at the contact point of the liquid drops and the coating, wherein the included angle between the tangent line and the fixed cross line is a contact angle;
2. testing the oil content in the condensed water: collecting 100ml of condensed water for testing at the beginning of testing time, placing the condensed water in a triangular flask, adding 2g of NaCl, shaking the condensed water until the condensed water is dissolved, adding 25ml of petroleum ether, shaking the condensed water and uniformly pouring the mixed liquid into a separating funnel, standing the mixed liquid for layering to collect supernatant, washing the supernatant with 25ml of petroleum ether for three times, collecting all the supernatant, adding anhydrous sodium sulfate for dehydration, standing the mixed liquid for half an hour for filtering the mixed liquid until a weighed flat flask volatilizes a solvent, drying the mixed liquid for 1 hour at 105 ℃, taking the mixed liquid out, cooling and weighing the mixed liquid, wherein the weight of the discharged oil smoke in unit time (the more the discharged amount is, the less the internal residue is);
3. testing the heat exchange performance: and (3) testing the heat exchange amount under a low-temperature wet condition (7/6 dry and wet balls, a cooling liquid inlet at the temperature of-2 ℃), and a constant static pressure of-13 pa.
The test results obtained by the above-described test method are shown in table 1.
TABLE 1 test results table
The comparative example is a test result of controlling the existing air conditioning equipment by using the existing control method, and the embodiment is a test result of controlling the air conditioning equipment by using the control method, so that the control method is obviously superior to the existing control method in terms of hydrophilic angle, oil stain discharge weight and heat exchange quantity, and the scheme of the invention is feasible and can bring substantial effects.
Referring to fig. 5, an embodiment of the present invention further provides an apparatus, including:
at least one processor 100;
at least one memory 200 for storing at least one program;
when the at least one program is executed by the at least one processor 100, the at least one processor 100 implements the control method described above.
The contents of the above method embodiments are all applicable to the present apparatus embodiment, and the functions implemented by the present apparatus embodiment are the same as those of the above method embodiments.
The embodiment of the invention also provides air conditioning equipment comprising the device.
An embodiment of the present invention further provides a storage medium, which stores a program, and the program is used to implement the control method when executed by a processor.
The contents in the above method embodiments are all applicable to the present storage medium embodiment, and the functions implemented in the present storage medium embodiment are the same as those in the above method embodiments.
The embodiments of the present application have been described in detail with reference to the drawings, but the present application is not limited to the embodiments, and various changes can be made without departing from the spirit of the present application within the knowledge of those skilled in the art.
Claims (15)
1. Air conditioning apparatus, characterized by comprising:
the air inlet, the air duct and the air outlet form a ventilation loop;
a heat exchanger disposed within the housing;
the fan comprises a wind wheel and is used for supplying air to the air duct and the heat exchanger;
the spraying device is used for spraying liquid to at least one of the heat exchanger, the wind wheel and the air duct;
and the control module is used for controlling the fan to start and controlling the spraying device to start before or while controlling the fan to start.
2. The air conditioner as set forth in claim 1, wherein: the spraying device comprises a track and a spray head, the spray head is positioned on the track and can move along the track, one of the track and the spray head is arranged to rotate and move along the extending direction vertical to the track, and the spray head is used for spraying the liquid.
3. The air conditioner as set forth in claim 1, wherein: still include the filter screen, the filter screen set up in the wind channel with between the air outlet.
4. The air conditioner as set forth in claim 1, wherein: the control module includes:
the detection unit is used for acquiring detection parameters of the heat exchanger or the air duct, and the detection parameters are used for representing humidity;
and the control unit is used for controlling the spraying device to be started and closed according to the detection parameters and a preset threshold value.
5. The air conditioner as set forth in claim 4, wherein: the heat exchanger or the air duct is provided with a first side and a second side, the liquid flows from the first side to the second side, and the detection unit is arranged on the first side.
6. The air conditioner as set forth in claim 1, wherein: and a lyophilic coating is arranged on the surface of at least one of the heat exchanger, the wind wheel and the air duct.
7. A control method applied to the air conditioning apparatus as set forth in any one of claims 1 to 6, characterized by comprising the steps of:
before the fan is controlled to be started, the spraying device is controlled to be started to spray liquid on the air conditioning component;
or,
controlling a spraying device to start to spray liquid to the air conditioning component while controlling the fan to start;
wherein the air conditioning assembly includes at least one of a heat exchanger, a wind wheel, and an air duct.
8. The control method according to claim 7, characterized in that: the control spraying device is started to spray liquid to the air conditioner component, and the method comprises the following steps:
and controlling the spraying device to start and move in at least one of the extending direction of the spraying device and the direction vertical to the extending direction of the spraying device so as to spray the liquid on the air-conditioning assembly.
9. The control method according to claim 7, characterized in that: after the step of controlling the spraying device to start to spray liquid to the air conditioner component, the method further comprises the following steps:
acquiring a first detection parameter of the heat exchanger or the air duct, wherein the first detection parameter is used for representing humidity;
determining that the first detection parameter is larger than a preset threshold value, and controlling the spraying device to be closed;
and controlling the fan to start, or controlling the fan and the compressor to start.
10. The control method according to claim 7, characterized in that: further comprising the steps of:
acquiring a second detection parameter of the heat exchanger or the air duct before the fan is in a starting state and an air conditioner shutdown instruction is confirmed to be received, wherein the second detection parameter is used for representing humidity;
and determining that the second detection parameter is less than or equal to a preset threshold value, and controlling the spraying device to start.
11. The control method according to claim 10, characterized in that: further comprising the steps of:
and before the fan is in a starting state and the receiving of an air conditioner shutdown instruction is confirmed, determining that the second detection parameter is greater than the preset threshold value, and controlling the spray device to be closed.
12. The control method according to any one of claims 7 to 11, characterized in that: further comprising the steps of:
confirming that an air conditioner shutdown instruction is received, controlling the spray device to be closed, or controlling the spray device and the compressor to be closed, and acquiring a third detection parameter of the heat exchanger or the air duct, wherein the third detection parameter is used for representing humidity;
and confirming that the third detection parameter is less than or equal to a preset threshold value, and controlling the fan to be closed.
13. An apparatus, comprising:
at least one processor;
at least one memory for storing at least one program;
when executed by the at least one processor, cause the at least one processor to implement the control method of any one of claims 7-12.
14. An air conditioning apparatus, characterized in that it comprises a device according to claim 13.
15. A storage medium characterized in that the storage medium stores a program for implementing the control method according to any one of claims 7 to 12 when the program is executed by a processor.
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