CN112413763A - Air conditioning system and control method thereof - Google Patents
Air conditioning system and control method thereof Download PDFInfo
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- CN112413763A CN112413763A CN202011378268.0A CN202011378268A CN112413763A CN 112413763 A CN112413763 A CN 112413763A CN 202011378268 A CN202011378268 A CN 202011378268A CN 112413763 A CN112413763 A CN 112413763A
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000005057 refrigeration Methods 0.000 claims abstract description 58
- 230000006835 compression Effects 0.000 claims abstract description 28
- 238000007906 compression Methods 0.000 claims abstract description 28
- 238000001816 cooling Methods 0.000 claims description 14
- 238000001704 evaporation Methods 0.000 claims description 8
- 238000009833 condensation Methods 0.000 claims description 6
- 230000005494 condensation Effects 0.000 claims description 6
- 230000008020 evaporation Effects 0.000 claims description 6
- 238000004891 communication Methods 0.000 claims description 4
- 125000004122 cyclic group Chemical group 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 10
- 239000003507 refrigerant Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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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
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
- F24F11/46—Improving electric energy efficiency or saving
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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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
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0046—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater using natural energy, e.g. solar energy, energy from the ground
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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
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Life Sciences & Earth Sciences (AREA)
- Fuzzy Systems (AREA)
- Mathematical Physics (AREA)
- Physics & Mathematics (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present disclosure provides an air conditioning system and a control method thereof, the air conditioning system including: an indoor air inlet cavity, an outdoor air inlet cavity, an indoor air outlet cavity and an outdoor air outlet cavity; in a compression refrigeration mode, an indoor air inlet cavity is communicated with an indoor air outlet cavity, and indoor air flows through the indoor air inlet cavity and the indoor air outlet cavity in sequence for circulating heat exchange to perform compression refrigeration; under the fresh air refrigeration mode, the indoor air outlet cavity is communicated with the outdoor air inlet cavity, outdoor fresh air sequentially flows through the outdoor air inlet cavity and the indoor air outlet cavity to enter the room, and fresh air refrigeration is executed. The air conditioning system disclosed executes the fresh air refrigeration mode when the outdoor temperature is low, the outdoor low-temperature fresh air is introduced into the room, the indoor temperature is reduced, the natural cold source is fully utilized to cool the machine room, the compression refrigeration mode is executed only when the outdoor temperature is high, the indoor air executes the internal refrigeration cycle, and the indoor temperature is reduced, so that the problem of high energy consumption caused by year-round compression refrigeration of the machine room air conditioning system is solved, and the low-energy-consumption operation of the machine room air conditioning system is realized.
Description
Technical Field
The disclosure belongs to the technical field of special air conditioners, and particularly relates to an air conditioning system and a control method thereof.
Background
With the advent of the 5G era, the demand of base stations has increased day by day, and power consumption has doubled compared to the 4G era. Due to the special properties of the base station, the air conditioner of the base station needs to be started all the year round, and the power consumption is huge. Therefore, the energy conservation of the base station air conditioner is very important, the temperature is mainly reduced in a compressor refrigeration mode, the operation mode needs refrigeration equipment to operate all the year round, and the energy consumption is huge.
Disclosure of Invention
Therefore, the technical problem to be solved by the present disclosure is that refrigeration equipment such as a base station air conditioner operates all year round with huge energy consumption, thereby providing an air conditioning system and a control method thereof.
In order to solve the above problems, the present disclosure provides an air conditioning system including:
an indoor air inlet cavity, an outdoor air inlet cavity, an indoor air outlet cavity and an outdoor air outlet cavity;
in a compression refrigeration mode, an indoor air inlet cavity is communicated with an indoor air outlet cavity, and indoor air flows through the indoor air inlet cavity and the indoor air outlet cavity in sequence for circulating heat exchange to perform compression refrigeration;
under the fresh air refrigeration mode, the indoor air outlet cavity is communicated with the outdoor air inlet cavity, outdoor fresh air sequentially flows through the outdoor air inlet cavity and the indoor air outlet cavity to enter the room, and fresh air refrigeration is executed.
In some embodiments, a first switching device is arranged between the indoor air inlet cavity and the indoor air outlet cavity, and the first switching device is configured to control the on-off of the indoor air inlet cavity and the indoor air outlet cavity; and a second switching device is arranged between the outdoor air inlet cavity and the indoor air outlet cavity and is configured to control the on-off of the outdoor air inlet cavity and the indoor air outlet cavity.
In some embodiments, a second baffle plate is arranged between the indoor air inlet cavity and the indoor air outlet cavity, the first switching device is arranged on the second baffle plate, a first baffle plate is arranged between the outdoor air inlet cavity and the indoor air outlet cavity, and the second switching device is arranged on the first baffle plate.
In some embodiments, the first switching device comprises a first expansion member and a first inflation tube, the second baffle is provided with a first valve, the first expansion member is arranged on the first valve, the first expansion member is inflated and expanded to close the first valve, the indoor air inlet cavity and the indoor air outlet cavity are closed, the first expansion member is deflated and contracted to open the first valve, and the indoor air inlet cavity is communicated with the indoor air outlet cavity.
In some embodiments, the second switching device comprises a second expansion element and a second inflation tube, the first baffle is provided with a second valve, the second expansion element is arranged on the second valve, the second expansion element is inflated and expanded to close the second valve, the outdoor air inlet cavity and the indoor air outlet cavity are closed, the second expansion element is deflated and contracted to open the second valve, and the outdoor air inlet cavity is communicated with the indoor air outlet cavity.
In some embodiments, the first switching device comprises a plurality of first expansion members, the second baffle plate is provided with a number of first valves corresponding to the number of the first expansion members, and the plurality of first valves are uniformly distributed on the second baffle plate; and/or the second switching device comprises a plurality of second expansion pieces, second valves corresponding to the number of the second expansion pieces are arranged on the first baffle, and the second valves are uniformly distributed on the first baffle.
In some embodiments, in the compression refrigeration mode, the outdoor air inlet chamber is communicated with the outdoor air outlet chamber, and outdoor air flows through the outdoor air inlet chamber and the outdoor air outlet chamber in sequence for heat exchange in a circulating manner.
In some embodiments, in the fresh air cooling mode, the indoor air inlet chamber is communicated with the outdoor air outlet chamber, and the indoor air flows through the indoor air inlet chamber and the outdoor air outlet chamber in sequence and is discharged outdoors.
In some embodiments, a third switching device is arranged between the outdoor air inlet cavity and the outdoor air outlet cavity, and the third switching device is configured to control the on-off of the outdoor air inlet cavity and the outdoor air outlet cavity; and a fourth switching device is arranged between the indoor air inlet cavity and the outdoor air outlet cavity and is configured to control the on-off of the indoor air inlet cavity and the outdoor air outlet cavity.
In some embodiments, the first baffle and the second baffle are arranged in a crisscross manner, the indoor air inlet chamber, the outdoor air inlet chamber, the indoor air outlet chamber and the outdoor air outlet chamber are respectively arranged in four areas formed by the first baffle and the second baffle, and the indoor air inlet chamber is adjacent to the outdoor air outlet chamber and is arranged diagonally to the outdoor air inlet chamber.
In some embodiments, when the third switching device and the fourth switching device are included, the third switching device includes a third expansion piece and a third inflation tube, the first baffle is provided with a third valve, the third expansion piece is arranged on the third valve, the third expansion piece is inflated and expanded to close the third valve, the outdoor air inlet cavity and the outdoor air outlet cavity are closed, the third expansion piece is deflated and contracted to open the third valve, and the outdoor air inlet cavity is communicated with the outdoor air outlet cavity;
the fourth switching device comprises a fourth expansion piece and a fourth inflation tube, the second baffle is provided with a fourth valve, the fourth expansion piece is arranged on the fourth valve, the fourth expansion piece is inflated and expanded to shut off the fourth valve, the indoor air inlet cavity and the outdoor air outlet cavity are shut off, the fourth expansion piece is deflated and contracted to open the fourth valve, and the indoor air inlet cavity is communicated with the outdoor air outlet cavity.
In some embodiments, the first inflation tube and the third inflation tube are both disposed within the first baffle, the first inflation tube and the third inflation tube are both connected to a fifth inflation tube, and the fifth inflation tube is connected to the inflation device through the first air valve; the second inflation tube and the fourth inflation tube are both arranged in the second baffle, the second inflation light and the fourth inflation tube are simultaneously connected to the sixth inflation tube, and the sixth inflation tube is connected to the inflation device through the second air valve.
In some embodiments, the first inflation tube and the third inflation tube are first hollow tubes within the first baffle, the second inflation tube and the fourth inflation tube are second hollow tubes within the second baffle, and the first hollow tubes and the second hollow tubes are not in communication with each other.
In some embodiments, an evaporation fan is arranged in the indoor air inlet cavity, an evaporator is arranged in the indoor air outlet cavity, a compressor and a condensation fan are arranged in the outdoor air inlet cavity, and a condenser is arranged in the outdoor air outlet cavity.
In some embodiments, the air conditioning system is further provided with an indoor temperature sensor for detecting an indoor ambient temperature, and an outdoor temperature sensor for detecting an outdoor ambient temperature.
The control method of the air conditioning system comprises the following steps:
acquiring outdoor temperature;
judging whether the outdoor temperature reaches a preset temperature or not;
if the outdoor temperature reaches the preset temperature, executing a compression refrigeration mode;
and if the outdoor temperature does not reach the preset temperature, executing a fresh air refrigeration mode.
The purpose of the present disclosure and the technical problems solved thereby can be further achieved by the following technical measures.
In some embodiments, if the outdoor temperature reaches the preset temperature, the performing of the compression refrigeration mode includes:
the first expansion piece and the third expansion piece are deflated, and the first valve and the third valve are opened; the second expansion piece and the fourth expansion piece are inflated to close the second valve and the fourth valve;
and/or the presence of a gas in the gas,
if the outdoor temperature does not reach the preset temperature, the fresh air refrigeration mode is executed and comprises the following steps:
the first expansion piece and the third expansion piece are inflated to close the first valve and the third valve; the second expansion piece and the fourth expansion piece are deflated, and the second valve and the fourth valve are opened.
The air conditioning system and the control method thereof provided by the disclosure have at least the following beneficial effects:
the air conditioning system can be switched between a compression refrigeration mode and a fresh air refrigeration mode, the fresh air refrigeration mode is executed when outdoor temperature is low, outdoor low-temperature fresh air is introduced indoors, indoor temperature is reduced, a natural cold source is fully utilized to cool a machine room, the compression refrigeration mode is executed only when the outdoor temperature is high, indoor air executes internal refrigeration circulation, and the indoor temperature is reduced, so that the problem of high energy consumption caused by year-round compression refrigeration of the machine room air conditioning system in the related art is solved, and low-energy-consumption operation of the machine room air conditioning system is realized.
Drawings
Fig. 1 is a schematic diagram illustrating a structure and a compression refrigeration mode of an air conditioning system according to an embodiment of the present disclosure;
fig. 2 is a schematic view of a hot air cooling mode of an air conditioning system according to an embodiment of the disclosure;
FIG. 3 is a schematic cross-sectional view of a position of a first baffle and a second baffle of the disclosed embodiment;
fig. 4 is a schematic cross-sectional view of another position of the first baffle and the second baffle of the embodiment of the disclosure.
The reference numerals are represented as:
1. an indoor air inlet cavity; 2. an outdoor air inlet cavity; 3. an indoor air outlet cavity; 4. an outdoor air outlet cavity; 6. a first switching device; 7. a second switching device; 8. a third switching device; 9. a fourth switching device; 10. a first valve; 11. a second valve; 12. a third valve; 13. a fourth valve; 14. a first expansion member; 15. a second expansion member; 16. a third expansion member; 17. a fourth expansion member; 18. a first gas-filled tube; 19. a second gas-filled tube; 20. a third gas-filled tube; 21. a fourth gas-filled tube; 22. a fifth gas-filled tube; 23. a sixth gas-filled tube; 24. a first baffle plate; 25. a second baffle; 26. a first hollow tube; 27. a second hollow tube; 28. an evaporation fan; 29. an evaporator; 30. a condensing fan; 31. a compressor; 32. a condenser; 33. an indoor temperature sensor; 34. an outdoor temperature sensor; 35. a first air valve; 36. a second air valve; 37. an inflator.
Detailed Description
To make the objects, technical solutions and advantages of the present disclosure more apparent, the following embodiments of the present disclosure will be clearly and completely described in conjunction with the accompanying drawings. It is to be understood that the described embodiments are merely a subset of the disclosed embodiments and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
As shown in fig. 1 to 4, the present embodiment provides an air conditioning system including: an indoor air inlet cavity 1, an outdoor air inlet cavity 2, an indoor air outlet cavity 3 and an outdoor air outlet cavity 4; in a compression refrigeration mode, the indoor air inlet cavity 1 is communicated with the indoor air outlet cavity 3, and indoor air sequentially flows through the indoor air inlet cavity 1 and the indoor air outlet cavity 3 for circulating heat exchange to perform compression refrigeration; under the fresh air refrigeration mode, indoor air outlet cavity 3 is linked together with outdoor air inlet cavity 2, and outdoor fresh air flows through outdoor air inlet cavity 2, indoor air outlet cavity 3 in proper order and gets into indoorly, carries out the fresh air refrigeration.
The air conditioning system of this embodiment can switch under compression refrigeration mode and new trend refrigeration mode, carry out new trend refrigeration mode when outdoor temperature is lower, outdoor low temperature new trend is introduced indoorly, reduce indoor temperature, make full use of nature cold source cools down the computer lab, only carry out compression refrigeration mode when outdoor temperature is higher, indoor air carries out the internal cooling circulation, reduce indoor temperature, thereby the problem that the energy consumption that the computer lab air conditioning system among the correlation technique compressed refrigeration throughout the year and caused is high has been solved, realize computer lab air conditioning system's low energy consumption operation.
In some embodiments, a first switching device 6 is arranged between the indoor air inlet cavity 1 and the indoor air outlet cavity 3, and the first switching device 6 is configured to control the on-off of the indoor air inlet cavity 1 and the indoor air outlet cavity 3; and a second switching device 7 is arranged between the outdoor air inlet cavity 2 and the indoor air outlet cavity 3, and the second switching device 7 is configured to control the on-off of the outdoor air inlet cavity 2 and the indoor air outlet cavity 3.
Between the indoor air inlet chamber 1 of this embodiment and the indoor air outlet chamber 3, be equipped with the device that can switch the break-make respectively between outdoor air inlet chamber 2 and the indoor air outlet chamber 3. The switching of the refrigeration mode of the air conditioning system is realized through the communication between the chambers, and the air conditioning system has the advantages of simple structure, good sealing performance and no extrusion of the internal space of the air conditioning system by a switching device.
In some embodiments, a second baffle 25 is disposed between the indoor air inlet chamber 1 and the indoor air outlet chamber 3, the first switching device 6 is disposed on the second baffle 25, a first baffle 24 is disposed between the outdoor air inlet chamber 2 and the indoor air outlet chamber 3, and the second switching device 7 is disposed on the first baffle 24.
The indoor air inlet cavity 1 and the indoor air outlet cavity 3 of the air conditioner are separated through the baffle piece, and the on-off control of the two cavities can be realized only by arranging the ventilation valve with the on-off function on the baffle piece, so that the air circulation mode is changed, and different refrigeration modes are executed.
In some embodiments, the first switching device 6 comprises a first expansion member 14 and a first inflation tube 18, the second baffle 25 is provided with a first valve 10, the first expansion member 14 is arranged on the first valve 10, the first expansion member 14 is inflated and expanded to close the first valve 10, the indoor air inlet cavity 1 is closed off from the indoor air outlet cavity 3, the first expansion member 14 is deflated and contracted to open the first valve 10, and the indoor air inlet cavity 1 is communicated with the indoor air outlet cavity 3.
The second switching device 7 comprises a second expansion piece 15 and a second inflation pipe 19, a second valve 11 is arranged on the first baffle 24, the second expansion piece 15 is arranged on the second valve 11, the second expansion piece 15 is inflated and expanded to close the second valve 11, the outdoor air inlet cavity 2 is closed off from the indoor air outlet cavity 3, the second expansion piece 15 is deflated and contracted to open the second valve 11, and the outdoor air inlet cavity 2 is communicated with the indoor air outlet cavity 3.
The air conditioning system in this embodiment, the break-make of different cavities is realized through the form of aerifing the inflation piece, compares in machinery break-make structure, has simple structure, the leakproofness is good, does not account for the effect in space.
In some embodiments, the first switching device 6 comprises a plurality of first expansion members 14, the second baffle 25 is provided with a number of first valves 10 corresponding to the number of the first expansion members 14, and the plurality of first valves 10 are uniformly distributed on the second baffle 25; and/or the second switching device 7 comprises a plurality of second expansion members 15, the first baffle plate 24 is provided with a plurality of second valves 11 corresponding to the number of the second expansion members 15, and the plurality of second valves 11 are uniformly distributed on the first baffle plate 24.
The first valve 10 that is used for indoor air circulation heat transfer under the compression refrigeration mode between the indoor air inlet chamber 1 of this embodiment and the indoor air-out chamber 3 has a plurality ofly, and evenly distributed has increased the air current flow area between indoor air inlet chamber 1 and the indoor air-out chamber 3 on the second baffle 25, and the windage is less, helps improving the velocity of flow and the efficiency of indoor air circulation heat transfer. The second valves 11 used for introducing fresh air indoors in a fresh air refrigeration mode between the outdoor air inlet cavity 2 and the indoor air outlet cavity 3 are multiple and are uniformly distributed on the first baffle plate 24, the airflow circulation area between the outdoor air inlet cavity 2 and the indoor air outlet cavity 3 is increased, the wind resistance is small, and the flow rate and the efficiency of introducing outdoor air are improved.
In some embodiments, in the compression refrigeration mode, indoor air flows through the evaporator 29 in the indoor air inlet cavity 1 and the indoor air outlet cavity 3 on the indoor side, refrigerant in the evaporator 29 evaporates to absorb heat, the air temperature is reduced, and air refrigeration is realized, the outdoor air inlet cavity 2 is communicated with the outdoor air outlet cavity 4, outdoor air flows through the condenser 32 in the outdoor air inlet cavity 2 and the outdoor air outlet cavity 4 on the outdoor side, the refrigerant in the condenser 32 condenses to release heat, the outdoor air cools the refrigerant, and the refrigerant circulates back to the indoor side to perform next heat exchange.
In some embodiments, in the fresh air refrigeration mode, outdoor low-temperature fresh air is introduced into a room through the outdoor air inlet cavity 2 and the indoor air outlet cavity 3, the indoor air inlet cavity 1 is communicated with the outdoor air outlet cavity 4, indoor high-temperature air sequentially flows through the indoor air inlet cavity 1 and the outdoor air outlet cavity 4 and is discharged out of the room, so that an indoor and outdoor complete air cooling cycle is formed, the low-temperature fresh air is continuously introduced into the room, heat in a base station is taken out to the outdoor by the high-temperature air, the indoor and outdoor pressures are kept balanced, the air resistance introduced by the fresh air is small, the air inlet amount is sufficient, and therefore equipment in the base station is efficiently and continuously cooled.
In some embodiments, a third switching device 8 is disposed between the outdoor air inlet chamber 2 and the outdoor air outlet chamber 4, and the third switching device 8 is configured to control on/off of the outdoor air inlet chamber 2 and the outdoor air outlet chamber 4; a fourth switching device 9 is arranged between the indoor air inlet cavity 1 and the outdoor air outlet cavity 4, and the fourth switching device 9 is configured to control the on-off of the indoor air inlet cavity 1 and the outdoor air outlet cavity 4.
The outdoor air inlet cavity 2 and the outdoor air outlet cavity 4 are communicated to improve the condensation heat dissipation capacity of the outdoor side of the air conditioning system, but in a fresh air mode, the outdoor air inlet cavity 2 located on the fresh air inlet side serves as a fresh air introducing channel, in order to reduce fresh air loss, as much fresh air as possible reaches the inside of the base station, the outdoor air inlet cavity 2 and the outdoor air outlet cavity 4 need to be shut off, and the outdoor air inlet cavity 2 forms a single-inlet single-outlet one-way fresh air channel. The outdoor air-out cavity 4 at the air-out side of the fresh air is used as an indoor hot air blow-out channel, so that the loss is reduced, the hot air backflow is avoided, and the outdoor air-out cavity 4 forms a single-inlet single-outlet one-way hot air channel. The air quantity and the cooling effect of indoor and outdoor air cooling circulating cooling are comprehensively improved.
In some embodiments, the first baffle 24 and the second baffle 25 are disposed crosswise, the indoor air inlet chamber 1, the outdoor air inlet chamber 2, the indoor air outlet chamber 3, and the outdoor air outlet chamber 4 are disposed in four regions formed by the first baffle 24 and the second baffle 25, respectively, and the indoor air inlet chamber 1 is adjacent to the outdoor air outlet chamber 4 and is disposed diagonally to the outdoor air inlet chamber 2.
The air conditioning system of the embodiment is applied to base station equipment, particularly 5G base station equipment, and the volume requirement is simple and compact, so that four chambers of the air conditioning system are arranged in four areas formed by the first baffle plate 24 and the second baffle plate 25, the four chambers are sequentially and closely arranged, meanwhile, the first baffle plate 24 simultaneously separates the indoor air inlet chamber 1 from the indoor air outlet chamber 3, the outdoor air inlet chamber 2 from the outdoor air outlet chamber 4, and the second baffle plate 25 simultaneously separates the indoor air inlet chamber 1 from the outdoor air outlet chamber 4 and separates the indoor air outlet chamber 3 from the outdoor air inlet chamber 2, so that one plate has two purposes, namely, the compact shape of the air conditioning system is facilitated, and the integral stability of the air conditioning system is also facilitated.
In some embodiments, when the third switching device 8 and the fourth switching device 9 are included, the third switching device 8 includes a third expansion element 16 and a third inflation tube 20, the first baffle plate 24 is provided with a third valve 12, the third expansion element 16 is arranged on the third valve 12, the third expansion element 16 inflates and expands to close the third valve 12, the outdoor air inlet chamber 2 is closed off from the outdoor air outlet chamber 4, the third expansion element 16 deflates and contracts to open the third valve 12, and the outdoor air inlet chamber 2 is communicated with the outdoor air outlet chamber 4;
the fourth switching device 9 comprises a fourth expansion piece 17 and a fourth inflation tube 21, a fourth valve 13 is arranged on the second baffle 25, the fourth expansion piece 17 is arranged on the fourth valve 13, the fourth expansion piece 17 is inflated and expanded to shut off the fourth valve 13, the indoor air inlet cavity 1 is shut off from the outdoor air outlet cavity 4, the fourth expansion piece 17 is deflated and contracted to open the fourth valve 13, and the indoor air inlet cavity 1 is communicated with the outdoor air outlet cavity 4.
The air conditioning system in this embodiment, the break-make of different cavities is realized through the form of aerifing the inflation piece, compares in machinery break-make structure, has simple structure, the leakproofness is good, does not account for the effect in space.
In some embodiments, the first inflation tube 18 and the third inflation tube 20 are both disposed in the first baffle 24, the first inflation tube 18 and the third inflation tube 20 are both connected to the fifth inflation tube 22, and the fifth inflation tube 22 is connected to the inflation device 37 through the first air valve 35; the second inflation tube 19 and the fourth inflation tube 21 are both disposed in the second baffle 25, the second inflation light and the fourth inflation tube 21 are both connected to the sixth inflation tube 23, and the sixth inflation tube 23 is connected to the inflation device 37 through the second air valve 36.
The first baffle 24 and the second baffle 25 in this embodiment serve as mounting carriers for the switching devices in addition to the spacers for the adjacent chambers. Considering that the first valve 10 and the third valve 12 have the same opening and closing rule, the second valve 11 and the fourth valve 13 also have the same opening and closing rule. Thus, the first inflation tube 18 of the first expansion member 14 and the third inflation tube 20 of the third expansion member 16 are communicated with each other to realize integral gas supply; the second inflation tube 19 of the second expansion part 15 and the fourth inflation tube 21 of the fourth expansion part 17 are communicated with each other, so that integrated air supply is realized, the control efficiency of the air conditioning system is improved, and the use of air supply elements is reduced.
In some embodiments, in order to further simplify the structure of the switching device and improve the compactness of the air conditioning system, the internal space of the baffle is fully utilized, the first inflation tube 18 and the third inflation tube 20 are first hollow tubes 26 in the first baffle 24, the second inflation tube 19 and the fourth inflation tube 21 are second hollow tubes 27 in the second baffle 25, and the first hollow tubes 26 and the second hollow tubes 27 are not communicated with each other, so as to facilitate separate air supply and exhaust control.
In some embodiments, the indoor air inlet chamber 1 is provided with an evaporation fan 28, the indoor air outlet chamber 3 is provided with an evaporator 29, the outdoor air inlet chamber 2 is provided with a compressor 31 and a condensation fan 30, the outdoor air outlet chamber 4 is provided with a condenser 32, and the compressor 31, the evaporator 29 and the condenser 32 form a complete refrigerant circulation system to perform compression refrigeration through evaporation and condensation of the refrigerant. The condensing fan 30 and the evaporating fan 28 are respectively arranged at the air inlet on the outdoor side and the air inlet on the indoor side, so that the airflow efficiency of the corresponding sides is improved.
In some embodiments, air filters are provided on the evaporator fan 28 and the condenser fan 30, respectively, to prevent impurities in the room or indoor air from entering the interior of the air conditioning system.
In some embodiments, the air conditioning system is further provided with an indoor temperature sensor 33 and an outdoor temperature sensor 34, wherein the indoor temperature sensor 33 is used for detecting the indoor ambient temperature, and the outdoor temperature sensor 34 is used for detecting the outdoor ambient temperature, so that the air conditioning system can switch the fresh air cooling mode or the compression cooling mode according to the detected outdoor ambient temperature.
The utility model provides an energy-saving air conditioning system of base station of free switch refrigeration mode realizes compressing the switching of refrigeration mode and new trend refrigeration mode through the form of aerifing expansion device, has reduced the energy consumption of the air conditioning system that the base station used, has advantages such as simple structure, sealed good, do not account for space.
The embodiment also provides a control method of the air conditioning system, which includes:
the outdoor temperature sensor 334 acquires the outdoor temperature S1.
S2, judging whether the outdoor temperature reaches the preset temperature by the controller of the air conditioning system; the preset temperature should be a temperature at which the outdoor temperature can satisfy cooling within the base station.
And S3, if the outdoor temperature reaches the preset temperature, executing the compression refrigeration mode.
Specifically, the air charging device 37 is started, the first expansion piece 14 and the third expansion piece 16 deflate and contract, air can be sucked through the independent air release valve or directly by adopting the air charging device 37, the first valve 10 and the third valve 12 are opened, the indoor air inlet cavity 1 is communicated with the indoor air outlet cavity 3, the evaporation fan 28 blows indoor air to circulate inside and is absorbed by the evaporator 29, the outdoor air inlet cavity 2 is communicated with the outdoor air outlet cavity 4, and the condensation fan 30 blows outdoor air to circulate inside and absorbs heat of the condenser 32; the second expansion piece 15 and the fourth expansion piece 17 are inflated to expand, the second valve 11 and the fourth valve 13 are closed, the indoor air inlet cavity 1 is disconnected with the outdoor air outlet cavity 4, the indoor air outlet cavity 3 is disconnected with the outdoor air inlet cavity 2, and the indoor side of the air conditioning system are separated.
And S4, if the outdoor temperature does not reach the preset temperature, executing a fresh air cooling mode.
Specifically, the air charging device 37 is started, the first expansion piece 14 and the third expansion piece 16 are charged with air and expanded, the first valve 10 and the third valve 12 are closed, the indoor air inlet cavity 1 is disconnected from the indoor air outlet cavity 3, the outdoor air inlet cavity 2 is disconnected from the outdoor air outlet cavity 4, and namely the fresh air side and the hot air side of the air conditioning system are separated; the second expansion piece 15 and the fourth expansion piece 17 deflate and contract, the second valve 11 and the fourth valve 13 are opened, the indoor air outlet cavity 3 is communicated with the outdoor air inlet cavity 2, the condensing fan 30 blows outdoor fresh air into the indoor space, the indoor air inlet cavity 1 is communicated with the outdoor air outlet cavity 4, the evaporating fan 28 blows indoor hot air out of the indoor space, and air cooling circulation is executed inside the base station.
The control method of the air conditioning system can freely switch the refrigeration mode, fully utilize the natural cold source, reduce the compression refrigeration time and reduce the energy consumption of the air conditioning system.
It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.
The present disclosure is to be considered as limited only by the preferred embodiments and not limited to the specific embodiments described herein, and all changes, equivalents and modifications that come within the spirit and scope of the disclosure are desired to be protected. The foregoing is only a preferred embodiment of the present disclosure, and it should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the technical principle of the present disclosure, and these improvements and modifications should also be considered as the protection scope of the present disclosure.
Claims (17)
1. An air conditioning system, comprising:
the indoor air inlet cavity (1), the outdoor air inlet cavity (2), the indoor air outlet cavity (3) and the outdoor air outlet cavity (4);
in a compression refrigeration mode, the indoor air inlet cavity (1) is communicated with the indoor air outlet cavity (3), and indoor air sequentially flows through the indoor air inlet cavity (1) and the indoor air outlet cavity (3) for cyclic heat exchange to perform compression refrigeration;
under the fresh air refrigeration mode, indoor air outlet cavity (3) with outdoor air inlet cavity (2) are linked together, and outdoor new trend flows through in proper order outdoor air inlet cavity (2) indoor air outlet cavity (3) get into indoorly, carry out the fresh air refrigeration.
2. The air conditioning system as claimed in claim 1, characterized in that a first switching device (6) is provided between the indoor air inlet chamber (1) and the indoor air outlet chamber (3), the first switching device (6) being configured to control the opening and closing of the indoor air inlet chamber (1) and the indoor air outlet chamber (3); and a second switching device (7) is arranged between the outdoor air inlet cavity (2) and the indoor air outlet cavity (3), and the second switching device (7) is configured to control the on-off of the outdoor air inlet cavity (2) and the indoor air outlet cavity (3).
3. Air conditioning system according to claim 2, characterized in that a second baffle (25) is provided between the indoor air intake chamber (1) and the indoor air outlet chamber (3), the first switching device (6) is provided on the second baffle (25), a first baffle (24) is provided between the outdoor air intake chamber (2) and the indoor air outlet chamber (3), and the second switching device (7) is provided on the first baffle (24).
4. Air conditioning system according to claim 3, characterized in that said first switching means (6) comprises a first expansion element (14), a first inflation duct (18), said second flap (25) being provided with a first valve (10), said first expansion element (14) being arranged on said first valve (10), said first valve (10) being switched off by inflation of said first expansion element (14), said indoor air intake chamber (1) being switched off from said indoor air outlet chamber (3), said first valve (10) being opened by deflation of said first expansion element (14), said indoor air intake chamber (1) being in communication with said indoor air outlet chamber (3).
5. Air conditioning system according to claim 4, characterized in that the second switching device (7) comprises a second expansion element (15) and a second inflation tube (19), the first baffle (24) is provided with a second valve (11), the second expansion element (15) is arranged on the second valve (11), the second expansion element (15) is inflated to expand and close the second valve (11), the outdoor air inlet chamber (2) is closed with the indoor air outlet chamber (3), the second expansion element (15) is deflated to contract and open the second valve (11), and the outdoor air inlet chamber (2) is communicated with the indoor air outlet chamber (3).
6. Air conditioning system according to claim 5, characterized in that said first switching means (6) comprise a plurality of first expansion members (14), said second shutter (25) being provided with a number of first valves (10) corresponding to the number of said first expansion members (14), said number of first valves (10) being uniformly distributed over said second shutter (25); and/or the second switching device (7) comprises a plurality of second expansion pieces (15), second valves (11) corresponding to the number of the second expansion pieces (15) are arranged on the first baffle plate (24), and the second valves (11) are uniformly distributed on the first baffle plate (24).
7. The air conditioning system as claimed in any one of claims 1 to 6, wherein in the compression refrigeration mode, the outdoor air inlet cavity (2) is communicated with the outdoor air outlet cavity (4), and outdoor air flows through the outdoor air inlet cavity (2) and the outdoor air outlet cavity (4) in sequence for heat circulation.
8. The air conditioning system as claimed in claim 7, wherein in the fresh air cooling mode, the indoor air inlet cavity (1) is communicated with the outdoor air outlet cavity (4), and indoor air flows through the indoor air inlet cavity (1) and the outdoor air outlet cavity (4) in sequence and is discharged to the outside.
9. Air conditioning system according to claim 8, characterized in that third switching means (8) are provided between said outdoor air intake chamber (2) and said outdoor air outlet chamber (4), said third switching means (8) being configured to control the switching of said outdoor air intake chamber (2) and said outdoor air outlet chamber (4); and a fourth switching device (9) is arranged between the indoor air inlet cavity (1) and the outdoor air outlet cavity (4), and the fourth switching device (9) is configured to control the on-off of the indoor air inlet cavity (1) and the outdoor air outlet cavity (4).
10. The air conditioning system as claimed in any one of claims 1 to 9, wherein the first baffle (24) and the second baffle (25) are arranged crosswise, the indoor air inlet cavity (1), the outdoor air inlet cavity (2), the indoor air outlet cavity (3) and the outdoor air outlet cavity (4) are respectively arranged in four areas formed by the first baffle (24) and the second baffle (25), and the indoor air inlet cavity (1) is adjacent to the outdoor air outlet cavity (4) and is arranged diagonally to the outdoor air inlet cavity (2).
11. Air conditioning system according to claim 10, characterized in that when a third switching device (8), a fourth switching device (9) are included, said third switching device (8) comprises a third expansion element (16), a third inflation duct (20), said first shutter (24) is provided with a third valve (12), said third expansion element (16) is provided on said third valve (12), said third expansion element (16) is inflated to expand to close said third valve (12), said outdoor air intake chamber (2) is closed off from said outdoor air intake chamber (4), said third expansion element (16) is deflated to contract to open said third valve (12), said outdoor air intake chamber (2) is communicated with said outdoor air intake chamber (4);
fourth auto-change over device (9) are including fourth inflation piece (17), fourth gas tube (21), second baffle (25) are equipped with fourth valve (13), fourth inflation piece (17) set up on fourth valve (13), fourth inflation piece (17) inflation shutoff fourth valve (13), indoor air inlet chamber (1) with outdoor wind cavity (4) shutoff, the disappointing shrink of fourth inflation piece (17) is opened fourth valve (13), indoor air inlet chamber (1) with outdoor wind cavity (4) intercommunication.
12. Air conditioning system according to claim 11, wherein the first inflation tube (18) and the third inflation tube (20) are both arranged inside the first baffle (24), the first inflation tube (18) and the third inflation tube (20) being connected to a fifth inflation tube (22) simultaneously, the fifth inflation tube (22) being connected to an inflation device (37) through a first air valve (35); the second inflation tube (19) and the fourth inflation tube (21) are arranged in the second baffle (25), the second inflation light and the fourth inflation tube (21) are connected to the sixth inflation tube (23) at the same time, and the sixth inflation tube (23) is connected to the inflation device (37) through the second air valve (36).
13. Air conditioning system according to claim 12, wherein the first inflation tube (18) and the third inflation tube (20) are first hollow tubes (26) within the first baffle (24), the second inflation tube (19) and the fourth inflation tube (21) are second hollow tubes (27) within the second baffle (25), and the first hollow tubes (26) and the second hollow tubes (27) are not in communication with each other.
14. Air conditioning system according to claim 9, characterized in that an evaporation fan (28) is arranged in the indoor air inlet chamber (1), an evaporator (29) is arranged in the indoor air outlet chamber (3), a compressor (31) and a condensation fan (30) are arranged in the outdoor air inlet chamber (2), and a condenser (32) is arranged in the outdoor air outlet chamber (4).
15. Air conditioning system according to claim 14, characterized in that it is further provided with an indoor temperature sensor (33), an outdoor temperature sensor (34), said indoor temperature sensor (33) being adapted to detect an indoor ambient temperature, said outdoor temperature sensor (34) being adapted to detect an outdoor ambient temperature.
16. A control method of an air conditioning system according to any one of claims 1 to 15, characterized by comprising:
acquiring outdoor temperature;
judging whether the outdoor temperature reaches a preset temperature or not;
if the outdoor temperature reaches the preset temperature, executing a compression refrigeration mode;
and if the outdoor temperature does not reach the preset temperature, executing a fresh air refrigeration mode.
17. The method as claimed in claim 16, wherein the performing of the compression cooling mode if the outdoor temperature reaches the preset temperature comprises:
the first expansion piece (14) and the third expansion piece (16) are deflated, and the first valve (10) and the third valve (12) are opened;
the second expansion piece (15) and the fourth expansion piece (17) are inflated to close the second valve (11) and the fourth valve (13);
and/or the presence of a gas in the gas,
if the outdoor temperature does not reach the preset temperature, executing a fresh air refrigeration mode comprises the following steps:
the first expansion piece (14) and the third expansion piece (16) are inflated to close the first valve (10) and the third valve (12);
the second expansion piece (15) and the fourth expansion piece (17) are deflated, and the second valve (11) and the fourth valve (13) are opened.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011378268.0A CN112413763A (en) | 2020-11-30 | 2020-11-30 | Air conditioning system and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011378268.0A CN112413763A (en) | 2020-11-30 | 2020-11-30 | Air conditioning system and control method thereof |
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| CN112413763A true CN112413763A (en) | 2021-02-26 |
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