CN110748969B - Air conditioning system and control method thereof - Google Patents
Air conditioning system and control method thereof Download PDFInfo
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- CN110748969B CN110748969B CN201911114971.8A CN201911114971A CN110748969B CN 110748969 B CN110748969 B CN 110748969B CN 201911114971 A CN201911114971 A CN 201911114971A CN 110748969 B CN110748969 B CN 110748969B
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 123
- 238000000034 method Methods 0.000 title claims abstract description 24
- 230000007246 mechanism Effects 0.000 claims abstract description 55
- 238000009423 ventilation Methods 0.000 claims abstract description 52
- 238000004891 communication Methods 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 65
- 238000001816 cooling Methods 0.000 claims description 37
- 238000005507 spraying Methods 0.000 claims description 35
- 239000003507 refrigerant Substances 0.000 claims description 29
- 238000001704 evaporation Methods 0.000 claims description 17
- 230000008020 evaporation Effects 0.000 claims description 9
- 239000003595 mist Substances 0.000 claims description 4
- 239000007921 spray Substances 0.000 description 9
- 238000001514 detection method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000009833 condensation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 4
- 238000004134 energy conservation Methods 0.000 description 3
- 238000005399 mechanical ventilation Methods 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 239000002131 composite material Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000002427 irreversible effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 238000010408 sweeping Methods 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 238000007605 air drying Methods 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0087—Indoor units, e.g. fan coil units with humidification means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- 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
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/88—Electrical aspects, e.g. circuits
-
- 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
- F24F11/89—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/022—Compressor control arrangements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/34—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering
- H02J7/35—Parallel operation in networks using both storage and other dc sources, e.g. providing buffering with light sensitive cells
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
Abstract
The invention provides an air conditioning system and a control method of the air conditioning system, the air conditioning system comprises: a ventilation structure, at least part of the ventilation structure being disposed at a communication between the indoor and outdoor, wherein the ventilation structure comprises: the fan is rotatably arranged to introduce outdoor fresh air into a room through the fan; the humidifying mechanism is arranged opposite to the fan at least in part, and is provided with a humidifying part for providing moisture for fresh air introduced by the fan so as to improve the humidity of the fresh air entering the room. By the technical scheme provided by the invention, the technical problem of low comfort level of the air conditioning system in the prior art can be solved.
Description
Technical Field
The invention relates to the technical field of air conditioning devices, in particular to an air conditioning system and a control method of the air conditioning system.
Background
At present, an air conditioning system in the prior art generally does not have a fresh air introducing function, so that the quality of indoor air is lower after the air conditioning system is operated for a long time, and the health of a user is not facilitated. Meanwhile, the air conditioning system can enable the humidity of indoor air to be low after long-term operation, and indoor air drying is also unfavorable for improving the use comfort of users.
Disclosure of Invention
The invention mainly aims to provide an air conditioning system and a control method thereof, which are used for solving the technical problem of low comfort level of the air conditioning system in the prior art.
In order to achieve the above object, according to one aspect of the present invention, there is provided an air conditioning system comprising: a ventilation structure, at least part of the ventilation structure being disposed at a communication between the indoor and outdoor, wherein the ventilation structure comprises: the fan is rotatably arranged to introduce outdoor fresh air into a room through the fan; the humidifying mechanism is arranged opposite to the fan at least in part, and is provided with a humidifying part for providing moisture for fresh air introduced by the fan so as to improve the humidity of the fresh air entering the room.
Further, the humidifying part comprises a wet film, and at least part of the wet film is arranged opposite to the air outlet or the air inlet of the fan so as to improve the humidity of the fresh air passing through the wet film.
Further, the humidifying mechanism further includes: the first spraying mechanism is arranged opposite to at least part of the wet film, so that water sprayed by the first spraying mechanism falls onto the wet film.
Further, the humidifying mechanism further includes: the first water receiving disc is arranged below the wet film, so that the first water receiving disc can receive water falling from the wet film.
Further, the air conditioning system further comprises a compressor, a condensing device and an evaporating device, wherein the compressor, the condensing device and the evaporating device are sequentially connected through pipelines to form a refrigerant circulation system; the compressor is provided with a first air outlet, a second air outlet, a first air suction port and a second air suction port, wherein the first air outlet is used for being communicated with the first air suction port, and the second air outlet is used for being communicated with the second air suction port; the condensing device comprises a first condenser and a second condenser which are arranged in parallel, the first condenser is communicated with the first exhaust port, and the second condenser is communicated with the second exhaust port; the evaporation device comprises a first evaporator and a second evaporator which are arranged in parallel, the first evaporator is communicated with the first air suction port, and the second evaporator is communicated with the second air suction port.
Further, the air conditioning system further includes: and the cooling device is arranged opposite to at least part of the condensing device so as to cool the condensing device through the cooling device.
Further, the cooling device is arranged opposite to the heat exchange part of the first condenser, the first condenser and the second condenser are arranged opposite to each other, and the first condenser is positioned on one side, far from the indoor, of the second condenser.
Further, the cooling device includes: and the water spraying port of the second spraying mechanism is opposite to the first condenser, so that water sprayed by the second spraying mechanism falls on the heat exchange part of the first condenser.
Further, the cooling device further includes: the second water receiving disc is positioned below the first condenser so as to contain water falling from the first condenser through the second water receiving disc.
Further, the cooling device includes: the spraying mechanism, the spraying mouth of spraying mechanism and the heat transfer portion of first condenser set up relatively to through the fog of spraying mechanism spun water to first condenser cooling.
Further, the air conditioning system further includes: the intermediate heat exchanger is provided with a first refrigerant inlet, a first refrigerant outlet and a second refrigerant outlet, the outflow port of the first condenser and the outflow port of the second condenser are both communicated with the first refrigerant inlet, the first refrigerant outlet is communicated with the first evaporator, and the second refrigerant outlet is communicated with the second evaporator.
Further, the air conditioning system further includes: the outdoor controller is connected with the air conditioning indoor unit of the air conditioning system, the air conditioning outdoor unit of the air conditioning system and the ventilation structure, so that the running conditions of the air conditioning indoor unit, the air conditioning outdoor unit and the ventilation structure are controlled by the outdoor controller.
Further, the air conditioning system further comprises a first detection device for detecting the indoor temperature and a second detection device for detecting the outdoor temperature, wherein the first detection device and the second detection device are connected with the outdoor controller, so that the outdoor controller is controlled according to the temperature signals detected by the first detection device and the temperature signals detected by the second detection device.
According to another aspect of the present invention, there is provided a control method of an air conditioning system for the air conditioning system provided above, the control method of the air conditioning system including: detecting an outdoor temperature and an indoor temperature; according to the temperature difference between the outdoor temperature and the indoor temperature, the air conditioning system is enabled to control the running state of the ventilation structure of the air conditioning system.
Further, the control method of the air conditioning system further includes: when the outdoor temperature is lower than the indoor temperature, controlling a fan of the ventilation structure to operate; when the outdoor temperature is higher than the indoor temperature and the enthalpy value of the outdoor air is lower than the preset enthalpy value, controlling a fan of the ventilation structure and a humidifying mechanism of the ventilation structure to operate; and when the outdoor temperature is higher than the indoor temperature and the enthalpy value of the outdoor air is higher than the preset enthalpy value, controlling the air conditioner indoor unit of the air conditioner system and the air conditioner outdoor unit of the air conditioner system to operate.
Further, the air conditioning system is the air conditioning system provided above, and the control method of the air conditioning system further includes: and when the outdoor temperature is higher than the indoor temperature and the outdoor temperature is higher than a preset temperature value, controlling a cooling device of the air conditioning system to operate.
By adopting the technical scheme, through arranging the ventilation structure, when the indoor air quality is low, a fan of the ventilation structure can be operated to provide fresh air for the indoor; when the humidity of indoor air is lower, can make fan and humidification mechanism simultaneous operation simultaneously to the humidification portion through humidification mechanism provides moisture to the new trend, in order to improve the humidity of the new trend that gets into indoor, thereby can improve the use comfort who is used for. Therefore, the technical scheme provided by the invention can solve the technical problem of low comfort level of the air conditioning system in the prior art.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
fig. 1 is a schematic view showing a structure of an air conditioning system according to a first embodiment of the present invention;
fig. 2 is a schematic view showing an installation structure of an air conditioning system according to a first embodiment of the present invention;
fig. 3 is a schematic view showing another angle of a mounting structure of an air conditioning system according to an embodiment of the present invention; and
fig. 4 is a schematic structural view showing a ventilation structure of an air conditioning system according to a first embodiment of the present invention.
Wherein the above figures include the following reference numerals:
10. a photovoltaic module; 20. a ventilation structure; 21. a blower; 22. a humidifying mechanism; 221. a humidifying unit; 222. a first spray mechanism; 223. a first water pan; 30. a compressor; 40. a condensing device; 41. a first condenser; 42. a second condenser; 50. an evaporation device; 51. a first evaporator; 52. a second evaporator; 60. a cooling device; 61. a second spraying mechanism; 62. a second water receiving tray; 70. an intermediate heat exchanger; 80. an outdoor controller; 90. an air conditioner indoor unit; 100. an air conditioner outdoor unit; 110. and an indoor controller.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
As shown in fig. 1 to 4, a first embodiment of the present invention provides an air conditioning system including a ventilation structure 20, at least part of the ventilation structure 20 being disposed at a communication between an indoor and an outdoor. Wherein, ventilation structure 20 includes fan 21 and humidification mechanism 22, and fan 21 rotatably sets up to introduce indoor fresh air through fan 21. At least part of the humidifying mechanism 22 is disposed opposite to the blower 21, and the humidifying mechanism 22 has a humidifying portion 221 for supplying moisture to the fresh air introduced into the blower 21 to increase the humidity of the fresh air entering the room.
By adopting the air conditioning system provided by the embodiment, when the indoor air quality is low, the fan 21 of the ventilation structure 20 can be rotated so as to introduce fresh air into the room, so that the indoor air quality is improved. When the humidity of the indoor air is low, the fan 21 and the humidifying mechanism 22 can be operated simultaneously, so that moisture is supplied to the fresh air through the humidifying part 221 of the humidifying mechanism 22, the humidity of the fresh air entering the indoor is improved, and the use comfort of a user is further improved.
The humidifying portion 221 in the present embodiment includes a wet film. Specifically, at least part of the wet film is disposed opposite to the air outlet or air inlet of the blower 21, so as to improve the humidity of the fresh air passing through the wet film. In this embodiment, at least part of the wet film is disposed at the air outlet of the blower 21, that is, the wet film is disposed on the side of the blower 21 away from the outside, so that the fresh air is humidified better by the wet film, and the humidity of the indoor air is improved better. The ventilation structure 20 in this embodiment can be directly connected to the wet film through tap water pressure, and the humidification cooling of fresh air is realized through the rotation of the fan 21, so that additional power consumption is avoided. The ventilator 21 is constructed in a mechanical ventilation and humidification mode, isenthalpic cooling is achieved by placing a wet film after fresh air, indoor sensible heat load is reduced under the condition that indoor requirements are met, a refrigerating unit is prevented from being started in part of time, and energy consumption of an air conditioning system is reduced.
Alternatively, the humidifying portion 221 in the present embodiment may take the form of an ultrasonic humidifying structure. The fan 21 of the ventilation structure 20 in the present embodiment includes a motor and a fan, which may be a centrifugal fan or an axial flow fan. When a centrifugal fan is employed, the size can be reduced.
Specifically, the humidifying mechanism 22 in this embodiment further includes a first spraying mechanism 222, where the first spraying mechanism 222 is disposed opposite to at least a portion of the wet film, so that the water sprayed by the first spraying mechanism 222 falls onto the wet film. The first spraying mechanism 222 in this embodiment includes a first connecting pipe and a first spray header, where the first connecting pipe is connected with the first spray header, water is introduced into the first connecting pipe, and after passing through the first connecting pipe, water is sprayed out from a spraying port of the first spray header, specifically, the structure of the first spray header may be similar to that of a shower nozzle, so as to spray water onto a wet film better, so as to make the wet film convert water into a water vapor form better, so as to improve the humidity of fresh air entering a room better.
In this embodiment, the humidifying mechanism 22 further includes a first water receiving tray 223, and the first water receiving tray 223 is disposed below the wet film, so that the first water receiving tray 223 receives water falling from the wet film. By adopting the arrangement, the water falling on the wet film can be collected, and the interference of the water falling on the wet film to other parts is avoided. Specifically, the humidifying mechanism 22 in this embodiment may further include a first pump body, where the first pump body is configured to pump water in the first water saving disc into the first connecting pipeline, so as to facilitate recycling and save water resources.
In this embodiment, the air conditioning system further includes a compressor 30, a condensing device 40 and an evaporating device 50, and the compressor 30, the condensing device 40 and the evaporating device 50 are sequentially connected through pipes to form a refrigerant circulation system. The compressor 30 has a first discharge port for communicating with the first suction port, a second discharge port for communicating with the second suction port, and a first suction port. The condensing device 40 includes a first condenser 41 and a second condenser 42 arranged in parallel, the first condenser 41 being in communication with the first exhaust port, the second condenser 42 being in communication with the second exhaust port. The evaporator 50 includes a first evaporator 51 and a second evaporator 52 which are disposed in parallel, the first evaporator 51 being in communication with the first air inlet, the second evaporator 52 being in communication with the second air inlet, the first evaporator 51 being a high temperature evaporator, the second evaporator 52 being a low temperature evaporator. The compressor 30 in this embodiment has a double-suction double-row structure, and with such an arrangement, it is possible to facilitate improvement of heat exchange efficiency, and by means of double evaporation temperature and double condensation temperature, it is possible to reduce irreversible loss of the evaporation device 50 and the condensation device 40 during heat transfer. Meanwhile, the high-pressure liquid of the low-evaporation temperature system can be supercooled through the refrigerating capacity of the high-evaporation temperature. The compressor 30 in this embodiment may adopt a double-suction and double-exhaust low-GWPR 152a rotor compressor 30, and a cascade suction and exhaust vapor compression refrigeration cycle is constructed by a cascade heat exchange coupling evaporative condenser, so as to realize independent temperature and humidity control.
Specifically, the refrigerant enters the low temperature condenser after exiting the first discharge port of the compressor 30; the refrigerant exiting the second discharge port of compressor 30 enters the high temperature condenser and is then throttled by a capillary tube to a pressure similar to that of the low temperature condenser. The two paths of refrigerant come out and then are converged into the room. Refrigerant entering the room enters the high-temperature evaporator and the low-temperature evaporator respectively, and refrigerant exiting the high-temperature evaporator enters the second air suction port of the compressor 30; the refrigerant from the low temperature evaporator enters the first suction port of the compressor 30. (high temperature evaporator corresponds to high temperature condenser) the water supply line delivers municipal water to the mechanical ventilator and outdoor evaporative cooling device 60. And respectively humidifying the raw materials in a spraying mode. The indoor controller 110 adjusts the operation of each component according to different parameters of the room.
Specifically, the high temperature evaporator in this embodiment mainly handles the indoor sensible heat load, the low temperature evaporator mainly handles the indoor latent heat load, and the high temperature evaporator and the low temperature evaporator are arranged in parallel. The refrigerants of the high temperature evaporator and the low temperature evaporator are independent of each other. The air to be treated is cooled (not dehumidified) by the high-temperature evaporator and dehumidified (cooled) by the low-temperature evaporator, and then is sent into a room after reaching the air supply condition, so that the purpose of independent temperature and humidity control is achieved, and the use comfort of a user is improved better.
In order to improve the overall energy efficiency, the air conditioning system in this embodiment further includes a cooling device 60, where the cooling device 60 is disposed opposite to at least a portion of the condensing device 40, so that the condensing device 40 is cooled by the cooling device 60 to reduce the condensing temperature of the condensing device 40.
Specifically, the cooling device 60 in the present embodiment is disposed opposite to the heat exchanging portion of the first condenser 41, the first condenser 41 and the second condenser 42 are disposed opposite to each other, and the first condenser 41 is located at a side of the second condenser 42 away from the room. The first condenser 41 in this embodiment is located on the windward side, the second condenser 42 is located on the leeward side, the first condenser 41 is a low-temperature condenser, the second condenser 42 is a high-temperature condenser, and the condensation temperatures of the low-temperature condenser and the high-temperature condenser are different.
Specifically, the cooling device 60 may include a second spraying mechanism 61 and a second water receiving tray 62, and a water spray port of the second spraying mechanism 61 is disposed opposite to the first condenser 41 so that water sprayed by the second spraying mechanism 61 falls on a heat exchanging portion of the first condenser 41. The second water receiving tray 62 is located below the first condenser 41 to receive water falling from the first condenser 41 through the second water receiving tray 62. The second spraying mechanism 61 in this embodiment may include a second connection pipe and a second shower head, where the second connection pipe and the second shower head are connected, the second connection pipe is used for introducing water, and the water flows out from the second shower head after passing through the second connection pipe, and the structure of the second shower head is similar to that of the shower head. In this embodiment, the second basin mechanism may further include a second pump body, where the second pump body is configured to pump the book in the second water tray 62 to the second connection pipeline, so as to facilitate recycling and save water resources. When the second shower mechanism 61 is employed, the first condenser 41 is preferably a fin-tube heat exchanger to enhance the effect of the evaporative cooling. The cooling device 60 in this embodiment may further include a water storage tank and a water distributor. The water sprayed by the second spraying mechanism 61 is left from the upper part or the front part of the heat exchanger, the water after passing through the water distributor flows to the fins and the heat exchange tubes of the first condenser 41 to evaporate, the water which is not evaporated flows into the water storage tank through the second water receiving disc 62, and the water in the water storage tank is pumped to the upper part or the front part of the first condenser 41 again by the second pump body to circulate.
Alternatively, the cooling device 60 may include a spraying mechanism having a spraying port provided opposite to the heat exchanging portion of the first condenser 41 so as to cool down the first condenser 41 by the mist water sprayed from the spraying mechanism. With such a configuration, mist can be caused to fall uniformly on the heat exchanging portion of the first condenser 41, so that the effect of cooling the first condenser 41 can be improved uniformly. When a spray mechanism is employed, the first condenser 41 is preferably a microchannel heat exchanger, so as to reduce the charge of the system. In particular, the spray mechanism may be an ultrasonic atomizing assembly or a compression atomizing assembly to facilitate atomization of the water within the conduit. The mist water sprayed by the spraying mechanism is evaporated and cooled after entering the air, and the cooled air flows through the first condenser 41 for heat exchange.
In the present embodiment, the air conditioning system further includes an intermediate heat exchanger 70, the intermediate heat exchanger 70 having a first refrigerant inlet, a first refrigerant outlet, and a second refrigerant outlet, the outflow port of the first condenser 41 and the outflow port of the second condenser 42 each being in communication with the first refrigerant inlet, the first refrigerant outlet being in communication with the first evaporator 51, the second refrigerant outlet being in communication with the second evaporator 52. With such an arrangement, the enthalpy increase at the inlet of the second evaporator 52 can be reduced, and the heat exchange amount of the cryogenic heat exchanger (i.e., the first heat exchanger) can be increased.
In this embodiment, the air conditioning system further includes an outdoor controller 80, and the air conditioning indoor unit 90 of the air conditioning system, the air conditioning outdoor unit 100 of the air conditioning system, and the ventilation structure 20 are all connected to the outdoor controller 80 to control the operation conditions of the air conditioning indoor unit 90, the air conditioning outdoor unit 100, and the ventilation structure 20 by the outdoor controller 80. With such an arrangement, different operation modes can be selected according to the temperature difference between the indoor and outdoor, and when the outdoor temperature is lower than the indoor temperature, the ventilation structure 20 is controlled to operate; when the outdoor temperature is higher than the indoor temperature, the operation of the air conditioner indoor unit 90 and the air conditioner outdoor unit 100 may be controlled. Therefore, different working modes can be conveniently selected according to actual use conditions, so that energy consumption and loss are reduced, and energy conservation is realized. Specifically, the air conditioner outdoor unit 100 in the present embodiment includes the compressor 30, the condensing unit 40, the cooling unit 60, and the like. The air conditioning indoor unit 90 in the present embodiment includes the evaporation device 50, an intermediate heat exchanger (i.e., the intermediate heat exchanger 70), and the like.
Specifically, the air conditioning system in this embodiment further includes a first detecting device for detecting an indoor temperature and a second detecting device for detecting an outdoor temperature, where the first detecting device and the second detecting device are connected to the outdoor controller 80, so that the outdoor controller 80 controls according to a temperature signal detected by the first detecting device and a temperature signal detected by the second detecting device. With such an arrangement, the outdoor controller 80 can select a corresponding operation mode according to the difference between indoor and outdoor temperatures, so as to better reduce the power consumption loss.
In this embodiment, the air conditioning system further includes an indoor controller 110, and the air guide plate and the air-sweeping blade of the air conditioner indoor unit 90 are connected to the indoor controller 110, so that the indoor controller 110 controls the operation conditions of the air guide plate and the air-sweeping blade. The air conditioning system in this embodiment further includes a photovoltaic module 10, and the ventilation structure 20, the air conditioning indoor unit 90 of the air conditioning system, and the air conditioning outdoor unit 100 of the air conditioning system are all connected with the photovoltaic module 10, so that electric energy is provided to the ventilation structure 20, the air conditioning indoor unit 90, and the air conditioning outdoor unit 100 through the photovoltaic module 10, so that natural energy sources are fully utilized, and an effect of saving energy is better achieved.
An embodiment II of the present invention provides a control method for an air conditioning system, which is used for the air conditioning system provided in the embodiment I. The control method of the air conditioning system comprises the following steps: detecting an outdoor temperature and an indoor temperature; the air conditioning system is caused to control the operation of the ventilation structure 20 of the air conditioning system according to the difference between the outdoor temperature and the indoor temperature. With such a configuration, the operation mode of the air conditioning system is not single, and the operation of the ventilation structure 20 can be controlled according to the actual indoor and outdoor temperature difference conditions, so that unnecessary energy loss is reduced, and energy saving is better realized.
Specifically, the control method of the air conditioning system in the present embodiment further includes controlling the fan 21 of the ventilation structure 20 to operate when the outdoor temperature is lower than the indoor temperature; when the outdoor temperature is higher than the indoor temperature and the enthalpy value of the outdoor air is lower than the preset enthalpy value, controlling the fan 21 of the ventilation structure 20 and the humidifying mechanism 22 of the ventilation structure 20 to operate; when the outdoor temperature is higher than the indoor temperature and the outdoor air enthalpy value is higher than the preset enthalpy value, the air conditioning indoor unit 90 of the air conditioning system and the air conditioning outdoor unit 100 of the air conditioning system are controlled to operate. By adopting the control method, different operation modes can be selected according to the temperature difference condition of the indoor and the outdoor, so that the energy consumption is reduced, and the energy conservation is facilitated.
Specifically, the air conditioning system in the present embodiment includes the cooling device 60, and the control method of the air conditioning system further includes controlling the cooling device 60 of the air conditioning system to operate when the outdoor temperature is higher than the indoor temperature and the outdoor temperature is higher than the preset temperature value. With such a control method, it is possible to facilitate lowering the condensing temperature of the condensing device 40 when the outdoor temperature is too high, and to improve the energy efficiency of the air conditioning system.
The specific control flow in this embodiment includes converting sunlight into direct current through the solar panel in the photovoltaic module 10, supplying power to the ventilation structure 20 and the outdoor fan 21, and supplying power to the fan 21 and the outdoor fan 21 through the utility power when the solar power supply is insufficient.
The air conditioning operation mode in this embodiment includes:
first mode (ventilation structure 20 single ventilation): when the outdoor temperature is lower than the indoor temperature, the system operates the ventilator 21 in a single ventilation mode, the ventilator 21 operates at a high speed, outdoor low-temperature air is introduced into the room, and the indoor temperature is reduced;
second mode (ventilation structure 20 single ventilation + humidification): when the outdoor temperature is higher than the indoor temperature, calculating an outdoor air enthalpy value from the outdoor dry bulb temperature and the outdoor relative humidity through a control logic built-in formula, when the enthalpy value is lower than h1, operating a ventilation and humidification mode of the ventilator 21 by the system, detecting the air outlet temperature of the ventilator 21, keeping the mode unchanged when the air outlet temperature is lower than the indoor dry bulb temperature, and operating a mode second mode when the air outlet temperature is higher than the indoor temperature;
third mode (pure air conditioning mode): when the outdoor temperature is higher than the indoor temperature, calculating an outdoor air enthalpy value from the outdoor dry bulb temperature and the outdoor relative humidity through a control logic built-in formula, and when the enthalpy value is higher than h1, operating a pure air conditioning mode by the system, stopping the operation of the ventilator 21 in the mode, starting the compressor 30, operating the indoor and outdoor fans 21, and reducing the indoor load through low-temperature air supply of the indoor unit;
fourth mode (air conditioning mode+cooling device 60 showers condensing device 40): when the outdoor temperature is higher than T1, the low-temperature condenser water spraying device is started, tap water is led to the top of the low-temperature condenser by the device to be sprayed, the temperature of the low-temperature condenser is reduced, and the energy efficiency of the whole machine is improved.
From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects: the energy consumption of the air conditioning system is reduced; the indoor air humidity is improved. The invention adopts a composite efficient structural mode of an air conditioning system, and the air conditioning system takes 'step suction and exhaust vapor compression refrigeration cycle' as a core, and combines natural energy utilization technologies such as evaporative cooling, light Fu Zhi driving and the like to construct the efficient composite air conditioning system. The air conditioning system can reduce load, and particularly, mechanical ventilation (namely, a ventilation structure) directly utilizes temperature difference and humidity difference to save energy; mechanical ventilation (namely a ventilation structure) humidification, isenthalpic cooling is achieved by placing a wet film after fresh air, and indoor sensible heat load is reduced under the condition of meeting indoor requirements. The air conditioning system can improve the energy efficiency of the refrigerating unit. When sufficient dry air energy (tdry-tweet >5 ℃) exists outdoors, water is sprayed or sprayed on the surface of the outdoor finned tube condenser, the air inlet temperature is reduced through evaporative cooling, and therefore the condensing temperature is reduced, and the energy efficiency of the unit is improved. The air conditioning system can fully utilize natural energy sources to achieve the effect of energy conservation. The refrigerating unit adopting the step suction and exhaust vapor compression refrigeration cycle can remarkably improve the heat and humidity load processing capability of the unit and improve the energy efficiency of the unit. The indoor adopts a dual-evaporator system with cascade heat exchange, sensible heat and latent heat loads are treated in a grading manner, the low-temperature evaporator mainly treats the latent heat load, and the high-temperature evaporator treats the sensible heat load. The outdoor uses a novel double-suction double-row compressor to compress the refrigerant to different pressure steps for heat exchange.
A double evaporator, a double condenser and a double-suction double-row compressor are adopted. The irreversible loss in the heat transfer process of the evaporator and the condenser is reduced through the double evaporation temperature and the double condensation temperature, and the heat exchange efficiency of the multi-row heat exchanger is improved; the refrigeration capacity with high evaporation temperature is used to supercool the high-pressure liquid of the low evaporation temperature system.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
The relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective parts shown in the drawings are not drawn in actual scale for convenience of description. Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but should be considered part of the specification where appropriate. In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the description of the present application, it should be understood that, where azimuth terms such as "front, rear, upper, lower, left, right", "transverse, vertical, horizontal", and "top, bottom", etc., indicate azimuth or positional relationships generally based on those shown in the drawings, only for convenience of description and simplification of the description, these azimuth terms do not indicate and imply that the apparatus or elements referred to must have a specific azimuth or be constructed and operated in a specific azimuth, and thus should not be construed as limiting the scope of protection of the present application; the orientation word "inner and outer" refers to inner and outer relative to the contour of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "upper surface at … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial location relative to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "over" other devices or structures would then be oriented "below" or "beneath" the other devices or structures. Thus, the exemplary term "above … …" may include both orientations of "above … …" and "below … …". The device may also be positioned in other different ways (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In addition, the terms "first", "second", etc. are used to define the components, and are merely for convenience of distinguishing the corresponding components, and unless otherwise stated, the terms have no special meaning, and thus should not be construed as limiting the scope of the present application.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (13)
1. An air conditioning system, comprising:
a ventilation structure (20), at least part of the ventilation structure (20) being arranged at a communication between the interior and the exterior,
wherein the ventilation structure (20) comprises:
a fan (21), wherein the fan (21) is rotatably arranged to introduce outdoor fresh air into a room through the fan (21);
a humidifying mechanism (22), at least part of the humidifying mechanism (22) is arranged opposite to the fan (21), and the humidifying mechanism (22) is provided with a humidifying part (221) for providing moisture for fresh air introduced by the fan (21) so as to improve the humidity of the fresh air entering the room;
the photovoltaic module (10), the ventilation structure (20), the air conditioning indoor unit (90) of the air conditioning system and the air conditioning outdoor unit (100) of the air conditioning system are all connected with the photovoltaic module (10) so as to provide electric energy for the ventilation structure (20), the air conditioning indoor unit (90) and the air conditioning outdoor unit (100) through the photovoltaic module (10);
the air conditioning system further comprises a compressor (30), a condensing device (40) and an evaporating device (50), wherein the compressor (30), the condensing device (40) and the evaporating device (50) are sequentially connected through pipelines to form a refrigerant circulation system;
the compressor (30) has a first discharge port for communicating with the first suction port, a second discharge port for communicating with the second suction port, a first suction port, and a second suction port;
the condensing device (40) comprises a first condenser (41) and a second condenser (42) which are arranged in parallel, the first condenser (41) is communicated with the first exhaust port, and the second condenser (42) is communicated with the second exhaust port;
the evaporation device (50) comprises a first evaporator (51) and a second evaporator (52) which are arranged in parallel, the first evaporator (51) is communicated with the first air suction port, and the second evaporator (52) is communicated with the second air suction port;
-cooling means (60), said cooling means (60) being arranged opposite at least part of said condensing means (40) for cooling said condensing means (40) by said cooling means (60);
an intermediate heat exchanger (70), the intermediate heat exchanger (70) having a first refrigerant inlet, a first refrigerant outlet and a second refrigerant outlet, the outflow port of the first condenser (41) and the outflow port of the second condenser (42) both being in communication with the first refrigerant inlet, the first refrigerant outlet being in communication with the first evaporator (51), the second refrigerant outlet being in communication with the second evaporator (52).
2. An air conditioning system according to claim 1, characterized in that the humidifying section (221) comprises a wet film, at least part of which is arranged opposite to the air outlet or inlet of the fan (21) to increase the humidity of the fresh air passing through the wet film.
3. The air conditioning system according to claim 2, wherein the humidifying mechanism (22) further includes:
and the first spraying mechanism (222) is arranged opposite to at least part of the wet film, so that water sprayed by the first spraying mechanism (222) falls onto the wet film.
4. An air conditioning system according to claim 3, wherein the humidifying mechanism (22) further comprises:
the first water receiving disc (223) is arranged below the wet film, so that the first water receiving disc (223) contains water falling from the wet film.
5. An air conditioning system according to claim 1, characterized in that the cooling device (60) is arranged opposite the heat exchanging portion of the first condenser (41), the first condenser (41) and the second condenser (42) are arranged opposite, and the first condenser (41) is located at a side of the second condenser (42) remote from the room.
6. An air conditioning system according to claim 5, characterized in that the cooling device (60) comprises:
and the water spraying port of the second spraying mechanism (61) is opposite to the first condenser (41), so that water sprayed by the second spraying mechanism (61) falls on the heat exchange part of the first condenser (41).
7. The air conditioning system according to claim 6, wherein the cooling device (60) further comprises:
and the second water receiving disc (62), wherein the second water receiving disc (62) is positioned below the first condenser (41) so as to receive water falling from the first condenser (41) through the second water receiving disc (62).
8. An air conditioning system according to claim 5, characterized in that the cooling device (60) comprises:
and a spraying mechanism, wherein a spraying opening of the spraying mechanism is arranged opposite to the heat exchange part of the first condenser (41) so as to cool the first condenser (41) through mist water sprayed by the spraying mechanism.
9. The air conditioning system of claim 1, further comprising:
and the air conditioning indoor unit (90), the air conditioning outdoor unit (100) and the ventilation structure (20) of the air conditioning system are connected with the outdoor controller (80) so as to control the running conditions of the air conditioning indoor unit (90), the air conditioning outdoor unit (100) and the ventilation structure (20) through the outdoor controller (80).
10. The air conditioning system according to claim 9, further comprising a first detecting means for detecting an indoor temperature and a second detecting means for detecting an outdoor temperature, both the first detecting means and the second detecting means being connected to the outdoor controller (80) such that the outdoor controller (80) is controlled in accordance with the temperature signal detected by the first detecting means and the temperature signal detected by the second detecting means.
11. A control method of an air conditioning system, characterized in that it is used for the air conditioning system according to any one of claims 1 to 10, the control method of the air conditioning system comprising:
detecting an outdoor temperature and an indoor temperature;
and controlling the running state of the ventilation structure of the air conditioning system according to the temperature difference between the outdoor temperature and the indoor temperature.
12. The control method of an air conditioning system according to claim 11, characterized in that the control method of an air conditioning system further comprises:
when the outdoor temperature is lower than the indoor temperature, controlling a fan of the ventilation structure to operate;
when the outdoor temperature is higher than the indoor temperature and the enthalpy value of the outdoor air is lower than the preset enthalpy value, controlling a fan of the ventilation structure and a humidifying mechanism of the ventilation structure to operate;
and when the outdoor temperature is higher than the indoor temperature and the enthalpy value of the outdoor air is higher than the preset enthalpy value, controlling the air conditioner indoor unit of the air conditioner system and the air conditioner outdoor unit of the air conditioner system to operate.
13. The control method of an air conditioning system according to claim 12, wherein the air conditioning system is the air conditioning system according to claim 1, the control method of an air conditioning system further comprising:
and when the outdoor temperature is higher than the indoor temperature and the outdoor temperature is higher than a preset temperature value, controlling a cooling device of the air conditioning system to operate.
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| CN110748970B (en) * | 2019-11-14 | 2023-12-08 | 珠海格力电器股份有限公司 | Air conditioning system and control method thereof |
| CN111895608B (en) * | 2020-08-14 | 2021-11-05 | 珠海格力电器股份有限公司 | Linkage control method and device for air conditioner and ventilator |
| CN111895585A (en) * | 2020-08-14 | 2020-11-06 | 珠海格力电器股份有限公司 | Air conditioning system control method |
| CN111895493A (en) * | 2020-08-14 | 2020-11-06 | 珠海格力电器股份有限公司 | Air conditioning system, air conditioner and control method of air conditioning system |
| CN111895587A (en) * | 2020-08-14 | 2020-11-06 | 珠海格力电器股份有限公司 | Air conditioning system control method |
| CN113091269A (en) * | 2021-04-02 | 2021-07-09 | 青岛海尔空调器有限总公司 | Air conditioner control method, air conditioner control device, air conditioner, storage medium and program product |
| CN115250928B (en) * | 2022-08-10 | 2024-04-12 | 中交二公局东萌工程有限公司 | Control method of air conditioning unit for indoor humidity of panda culture room |
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