CN109340960A - The combined air-conditioning system and its control method of computer room and room - Google Patents
The combined air-conditioning system and its control method of computer room and room Download PDFInfo
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- CN109340960A CN109340960A CN201811132504.3A CN201811132504A CN109340960A CN 109340960 A CN109340960 A CN 109340960A CN 201811132504 A CN201811132504 A CN 201811132504A CN 109340960 A CN109340960 A CN 109340960A
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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
- F24F11/62—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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
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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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- Combustion & Propulsion (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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- Air Conditioning Control Device (AREA)
Abstract
The invention discloses the combined air-conditioning systems of a kind of computer room and room, divide liquid storage device, liquid pump, computer room evaporator, heat pipe valve, heat pipe condenser, refrigeration valve, second throttling device, check valve, condenser/evaporator, room compressor, four-way valve, indoor heat exchanger, third throttling set, the 4th throttling set, outdoor heat exchanger and bypass valve including computer room compressor, refrigerant condenser, first throttling device, gas, the entrance of the refrigerant condenser is connected to the outlet of the computer room compressor；The entrance of first throttling device described in the outlet of the refrigerant condenser；The gas divides liquid storage device to be connected respectively with the entrance of the computer room compressor, the outlet of the heat pipe condenser, the outlet of the first throttling device and the entrance of liquid pump.The present invention had not only been able to achieve computer room highly effective refrigeration, but also was able to achieve the heating of computer room recuperation of heat whole year high energy efficiency, makes full use of outdoor natural cooling source and machine room heat, has excellent effects of energy saving and emission reduction.
Description
Technical field
The present invention relates to air-conditioning technical fields.
Background technique
The fast development of information industry and digital Construction, has pushed the quantity of computer room, base station, and construction scale quickly increases
It is long, according to statistics computer room, base station air conditioner energy consumption account for the 40%~50% of its total energy consumption.Computer room, the sensible heat load ratio of base station are big, and one
The four seasons in year need continuous operation, and side set temperature is lower than the season of outside temperature indoors, and conventional air-conditioning system still needs to continue
Compression-type refrigerating system is run, refrigeration system working efficiency is low and easily breaks down, if indoor/outdoor temperature-difference low cost can be utilized
Conveying heat provides cooling capacity for indoor, will greatly reduce the energy consumption and operating cost of air-conditioning system.In the high warm season such as summer
Section is by utilizing cold achievable refrigeration system efficient operation.Significantly lifting system efficiency.It is room using outdoor Cryogenic air
The method that inside provides cooling capacity has obtained the concern of scholar in the industry and engineers and technicians, and engineering skill is unfolded in different forms
Art research, such as currently used fresh air system, in addition there are various forms of gas-gas, air-water heat-exchange system, and application
The composite air conditioner of hot pipe technique.
Summary of the invention
The purpose of the present invention is to provide the combined air-conditioning systems and its control method of computer room and room, improve system operation
Efficiency realizes energy-saving and emission-reduction.
Realizing the technical solution of above-mentioned purpose is:
A kind of combined air-conditioning system of computer room and room, including computer room compressor, refrigerant condenser, first throttling device,
Gas divides liquid storage device, liquid pump, computer room evaporator, heat pipe valve, heat pipe condenser, refrigeration valve, second throttling device, check valve, condensation
Evaporator, room compressor, four-way valve, indoor heat exchanger, third throttling set, the 4th throttling set, outdoor heat exchanger and side
Road valve, wherein
The entrance of the refrigerant condenser is connected to the outlet of the computer room compressor；The outlet of the refrigerant condenser
The entrance of the first throttling device；
The gas divide liquid storage device respectively with the outlet of the entrance, the heat pipe condenser of the computer room compressor, described
The outlet of one throttling set and the entrance of liquid pump are connected；
The outlet of the liquid pump is connected to the entrance of the computer room evaporator by check valve；
The first interface of the condenser/evaporator is connected to the outlet of the computer room evaporator by the heat pipe valve, and second connects
Mouth is connected to the entrance of the heat pipe condenser, and third interface is connected to the first of the outdoor heat exchanger by the 4th throttling set
End, the 4th interface are connected to the first end of the indoor heat exchanger by third throttling set；
The both ends of the refrigeration valve connect with the outlet of the computer room evaporator and the outlet of the heat pipe condenser respectively
It is logical；
The both ends of the second throttling device respectively with the outlet of the refrigerant condenser and the computer room evaporator
Entrance connection；
Four ports of four-way valve second end with the both ends of the room compressor, the outdoor heat exchanger respectively
And the second end of the indoor heat exchanger is interconnected；
One end of the bypass valve is connected to the first end of the outdoor heat exchanger, and the other end passes through the condenser/evaporator
4th interface.
Preferably, the refrigerant condenser is water-cooled condenser, air-cooled condenser or evaporative condenser.
A kind of control method of combined air-conditioning system, as outdoor temperature T0 > set temperature T2, air conditioner in machine room needs cooling supply,
Room air conditioning system needs cooling supply, i.e. computer-room air conditioning system runs refrigeration mode, and room air conditioning system runs refrigeration mode, at this time
Refrigeration valve is opened, and heat pipe valve is closed, and first throttling device is closed, and by-passing valve is opened, and computer-room air conditioning system is by computer room compressor, system
Gentle point of cool condenser, second throttling device, computer room evaporator, refrigeration valve liquid storage device constitute circuit；Room air conditioning system is by room
Between compressor, four-way valve, indoor heat exchanger, third throttling set, by-passing valve and outdoor heat exchanger constitute refrigerating circuit, room at this time
Between air-conditioning system and computer-room air conditioning system work independently mutually refrigeration；
When outdoor temperature is greater than set temperature T1 and is less than or equal to set temperature T2, room needs heat supply, air conditioner in machine room
Cooling supply is needed, i.e. room air conditioning system needs to run heating mode, and air conditioner in machine room needs to carry out coupled mode, and refrigeration valve is closed at this time
It closes, heat pipe valve is opened, and second throttling device is closed, and by-passing valve is closed, and computer-room air conditioning system is condensed by computer room compressor, refrigeration
Device, first throttling device, gas divide liquid storage device, liquid pump, check valve, computer room evaporator, heat pipe valve, condenser/evaporator and heat pipe condensation
Device constitutes circuit；Room air conditioning system is by room compressor, four-way valve, indoor heat exchanger, third throttling set, condensation evaporation
Device, the 4th throttling set and outdoor heat exchanger constitute heating circuit；
When outdoor temperature is greater than set temperature T1 and is less than or equal to set temperature T2, room does not need heat supply, and computer room is empty
Tune needs cooling supply, i.e. room air conditioning system is not run, and air conditioner in machine room needs to carry out coupled mode, and refrigeration valve is closed at this time, heat pipe
Valve is opened, and second throttling device is closed, and computer-room air conditioning system is by computer room compressor, refrigerant condenser, first throttling device, gas point
Liquid storage device, liquid pump, check valve, computer room evaporator, heat pipe valve, condenser/evaporator and heat pipe condenser constitute circuit；
As outdoor temperature T0≤set temperature T1, room needs heat supply, and air conditioner in machine room needs cooling supply, i.e. room air conditioning system
Needing to run heating mode, air conditioner in machine room needs to carry out liquid phase heat pipe mode, and refrigeration valve is closed at this time, and heat pipe valve is opened, and first
Throttling set, second throttling device are closed, and computer-room air conditioning system divides liquid storage device, liquid pump, check valve, computer room evaporator, heat by gas
Pipe valve, condenser/evaporator and heat pipe condenser constitute circuit；Room air conditioning system is by room compressor, four-way valve, indoor heat exchange
Device, third throttling set, condenser/evaporator, the 4th throttling set and outdoor heat exchanger constitute heating circuit.
The beneficial effects of the present invention are: the present invention is integrated by realizing room air conditioning system and computer-room air conditioning system, it can
According to outdoor environment temperature switchover operation different working modes, it had not only been able to achieve computer room highly effective refrigeration, but also has been able to achieve computer room recuperation of heat
Annual high energy efficiency heating, makes full use of outdoor natural cooling source and machine room heat, has excellent effects of energy saving and emission reduction.
Detailed description of the invention
Fig. 1 is the structure chart of the combined air-conditioning system of computer room and room of the invention；
Fig. 2 is refrigeration+refrigeration mode loop structure figure in the present invention；
Fig. 3 is coupling+heating mode loop structure figure in the present invention；
Fig. 4 is coupling+not operating mode loop structure figure in the present invention；
Fig. 5 is heat pipe+heating mode loop structure figure in the present invention.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings.
Referring to Fig. 1, the combined air-conditioning system of computer room and room of the invention, including computer room compressor 1, refrigerant condenser
2, first throttling device 3, gas divide liquid storage device 4, liquid pump 5, computer room evaporator 6, heat pipe valve 7, heat pipe condenser 8, refrigeration valve 9,
Two throttling sets 10, check valve 11, condenser/evaporator 12, room compressor 13, four-way valve 14, indoor heat exchanger 15, third section
Flow device 16, the 4th throttling set 17, outdoor heat exchanger 18 and bypass valve 19.
The entrance of the refrigerant condenser 2 is connected to the outlet of the computer room compressor 1；The outlet of the refrigerant condenser 2
It is connected to the entrance of the first throttling device 3；The gas divide liquid storage device 4 respectively with the entrance of the computer room compressor 1, the heat
The entrance of the outlet of pipework condensation device 8, the outlet of the first throttling device 3 and liquid pump 5 is connected；The outlet of the liquid pump 5
The entrance of the computer room evaporator 6 is connected to by check valve 11.
The first interface of the condenser/evaporator 12 is connected to the outlet of the computer room evaporator 6 by the heat pipe valve 7, the
The entrance of heat pipe condenser 8 described in two orifices, third interface are connected to the outdoor heat exchanger by the 4th throttling set 17
18 first end, the 4th interface are connected to the first end of the indoor heat exchanger 15 by third throttling set 16.The refrigeration valve 9
The both ends outlet with the outlet of the computer room evaporator 6 and the heat pipe condenser 8 respectively；The second throttling dress
10 both ends are set to be connected to the entrance of the outlet of the refrigerant condenser 2 and the computer room evaporator 6 respectively；
Four ports of the four-way valve 14 respectively with the both ends of the room compressor 13, the outdoor heat exchanger 18
Second end and the second end of the indoor heat exchanger 15 are interconnected；One end of the bypass valve 19 is connected to the outdoor heat exchange
The first end of device 18, the other end pass through the 4th interface of the condenser/evaporator 12.Refrigerant condenser 2 is water-cooled condenser, wind
Cool condenser or evaporative condenser.
The control method of combined air-conditioning system of the invention, according to outdoor varying environment temperature, Various Seasonal and heat supply
Water demand switches different circuit operation different working modes respectively.
When outdoor is summer (outdoor temperature T0 > set temperature T2), air conditioner in machine room needs cooling supply, room air conditioning system
Cooling supply is needed, i.e. computer-room air conditioning system runs refrigeration mode, and room air conditioning system runs refrigeration mode, as shown in Fig. 2, making at this time
Low temperature valve 9 is opened, and heat pipe valve 7 is closed, and first throttling device 3 is closed, and by-passing valve 19 is opened, and computer-room air conditioning system is by computer room compressor
1, refrigerant condenser 2, second throttling device 10, computer room evaporator 6,9 gentle points of liquid storage devices of refrigeration valve 4 constitute circuit；According to room
The revolving speed of the revolving speed of internal loading size and the determining compressor of outdoor temperature height, expansion valve opening and condenser fan, it is real
Existing cold regulation.Room air conditioning system is by room compressor 13, four-way valve 14, indoor heat exchanger 15, third throttling set 16, side
Port valve 19 and outdoor heat exchanger 18 constitute refrigerating circuit, and room air conditioning system and computer-room air conditioning system work independently mutually system at this time
It is cold.
When outdoor spring, autumn transition season (outdoor temperature is greater than set temperature T1 and is less than or equal to set temperature T2),
Room needs heat supply, and air conditioner in machine room needs cooling supply, i.e. room air conditioning system needs to run heating mode, and air conditioner in machine room needs to carry out
Coupled mode, as shown in figure 3, refrigeration valve 9 is closed at this time, heat pipe valve 7 is opened, and second throttling device 10 is closed, and by-passing valve 19 closes
It closes, computer-room air conditioning system divides liquid storage device 4, liquid pump 5, unidirectional by computer room compressor 1, refrigerant condenser 2, first throttling device 3, gas
Valve 11, computer room evaporator 6, heat pipe valve 7, condenser/evaporator 12 and heat pipe condenser 8 constitute circuit；According to indoor load size with
And outdoor temperature determines compressor rotary speed and condenser fan revolving speed, realizes the accurate adjusting of cooling capacity.Room air conditioning system is by room
Between compressor 13, four-way valve 14, indoor heat exchanger 15, third throttling set 16, condenser/evaporator 12,17 and of the 4th throttling set
Outdoor heat exchanger 18 constitutes heating circuit.
When outdoor spring, autumn transition season (outdoor temperature is greater than set temperature T1 and is less than or equal to set temperature T2),
Room does not need heat supply, and air conditioner in machine room needs cooling supply, i.e. room air conditioning system is not run, and air conditioner in machine room needs to carry out coupled mode
Formula, as shown in figure 4, refrigeration valve 8 is closed at this time, heat pipe valve 7 is opened, and second throttling device 10 is closed, and computer-room air conditioning system is by machine
Room compressor 1, refrigerant condenser 2, first throttling device 3, gas divide liquid storage device 4, liquid pump 5, check valve 11, computer room evaporator 6, heat
Pipe valve 7, condenser/evaporator 12 and heat pipe condenser 8 constitute circuit.
When outdoor winter (outdoor temperature T0≤set temperature T1), room needs heat supply, and air conditioner in machine room needs cooling supply, i.e.,
Room air conditioning system needs to run heating mode, and air conditioner in machine room needs to carry out liquid phase heat pipe mode, as shown in figure 5, freezing at this time
Valve 9 is closed, and heat pipe valve 7 is opened, and first throttling device 3, second throttling device 10 are closed, and computer-room air conditioning system divides liquid storage device by gas
4, liquid pump 5, check valve 11, computer room evaporator 6, heat pipe valve 7, condenser/evaporator 12 and heat pipe condenser 8 constitute circuit；According to room
Internal loading size and outdoor temperature determine liquid pump and condenser fan revolving speed, realize the accurate adjusting of cooling capacity, control heat pipe work
Make pressure (temperature), adjust heat pipe heat exchanging ability, concrete mode is as follows: when outdoor circumstance temperature increases or indoor load increases, mentioning
Rise rotation speed of fan；When outdoor temperature reduces or indoor load reduces, rotation speed of fan is reduced.Room air conditioning system is compressed by room
Machine 13, four-way valve 14, indoor heat exchanger 15, third throttling set 16, condenser/evaporator 12, the 4th throttling set 17 and outdoor are changed
Hot device 18 constitutes heating circuit.It is preferentially rooms by machine room heat, it is room that shortcoming passes through operation heating mode again
Between heat.
Above embodiments are used for illustrative purposes only, rather than limitation of the present invention, the technology people in relation to technical field
Member, without departing from the spirit and scope of the present invention, can also make various transformation or modification, therefore all equivalent
Technical solution also should belong to scope of the invention, should be limited by each claim.
Claims (3)
1. the combined air-conditioning system of a kind of computer room and room, which is characterized in that including computer room compressor (1), refrigerant condenser
(2), first throttling device (3), gas divide liquid storage device (4), liquid pump (5), computer room evaporator (6), heat pipe valve (7), heat pipe condenser
(8), refrigeration valve (9), second throttling device (10), check valve (11), condenser/evaporator (12), room compressor (13), four-way
Valve (14), indoor heat exchanger (15), third throttling set (16), the 4th throttling set (17), outdoor heat exchanger (18) and bypass
Valve (19), wherein
The entrance of the refrigerant condenser (2) is connected to the outlet of the computer room compressor (1)；The refrigerant condenser (2) goes out
Mouth is connected to the entrance of the first throttling device (3)；
The gas divide liquid storage device (4) respectively with the entrance of the computer room compressor (1), the outlet of the heat pipe condenser (8), institute
The entrance of the outlet and liquid pump (5) of stating first throttling device (3) is connected；
The outlet of the liquid pump (5) is connected to the entrance of the computer room evaporator (6) by check valve (11)；
The first interface of the condenser/evaporator (12) is connected to the outlet of the computer room evaporator (6) by the heat pipe valve (7),
Second interface is connected to the entrance of the heat pipe condenser (8), and third interface is connected to the outdoor by the 4th throttling set (17)
The first end of heat exchanger (18), the 4th interface are connected to the first of the indoor heat exchanger (15) by third throttling set (16)
End；
The both ends of the refrigeration valve (9) go out with the outlet of the computer room evaporator (6) and the heat pipe condenser (8) respectively
Mouth connection；
The both ends of the second throttling device (10) respectively with the outlet of the refrigerant condenser (2) and the computer room evaporator
(6) entrance connection；
Four ports of the four-way valve (14) respectively with the both ends of the room compressor (13), the outdoor heat exchanger (18)
Second end and the indoor heat exchanger (15) second end be interconnected；
One end of the bypass valve (19) is connected to the first end of the outdoor heat exchanger (18), and the other end passes through the condensation evaporation
4th interface of device (12).
2. the combined air-conditioning system of computer room according to claim 1 and room, which is characterized in that the refrigerant condenser
It (2) is water-cooled condenser, air-cooled condenser or evaporative condenser.
3. a kind of control method of combined air-conditioning system as described in claim 1, which is characterized in that
As outdoor temperature T0 > set temperature T2, air conditioner in machine room needs cooling supply, and room air conditioning system needs cooling supply, i.e. air conditioner in machine room
System runs refrigeration mode, and room air conditioning system runs refrigeration mode, and refrigeration valve (9) is opened at this time, and heat pipe valve (7) is closed, the
One throttling set (3) is closed, and by-passing valve (19) is opened, and computer-room air conditioning system is by computer room compressor (1), refrigerant condenser (2), the
Gentle point of two throttling sets (10), computer room evaporator (6), refrigeration valve (9) liquid storage device (4) constitute circuit；Room air conditioning system by
Room compressor (13), four-way valve (14), indoor heat exchanger (15), third throttling set (16), by-passing valve (19) and outdoor are changed
Hot device (18) constitutes refrigerating circuit, and room air conditioning system and computer-room air conditioning system work independently mutually refrigeration at this time；
When outdoor temperature is greater than set temperature T1 and is less than or equal to set temperature T2, room needs heat supply, and air conditioner in machine room needs
Cooling supply, i.e. room air conditioning system need to run heating mode, and air conditioner in machine room needs to carry out coupled mode, and refrigeration valve (9) is closed at this time
It closes, heat pipe valve (7) is opened, and second throttling device (10) is closed, and by-passing valve (19) is closed, and computer-room air conditioning system is by computer room compressor
(1), refrigerant condenser (2), first throttling device (3), gas divide liquid storage device (4), liquid pump (5), check valve (11), computer room evaporator
(6), heat pipe valve (7), condenser/evaporator (12) and heat pipe condenser (8) constitute circuit；Room air conditioning system is by room compressor
(13), four-way valve (14), indoor heat exchanger (15), third throttling set (16), condenser/evaporator (12), the 4th throttling set
(17) and outdoor heat exchanger (18) constitutes heating circuit；
When outdoor temperature is greater than set temperature T1 and is less than or equal to set temperature T2, room does not need heat supply, and air conditioner in machine room needs
Cooling supply is wanted, i.e. room air conditioning system is not run, and air conditioner in machine room needs to carry out coupled mode, and refrigeration valve (8) is closed at this time, heat pipe valve
(7) it opens, second throttling device (10) is closed, and computer-room air conditioning system is by computer room compressor (1), refrigerant condenser (2), first segment
Stream device (3), gas divide liquid storage device (4), liquid pump (5), check valve (11), computer room evaporator (6), heat pipe valve (7), condenser/evaporator
(12) and heat pipe condenser (8) constitutes circuit；
As outdoor temperature T0≤set temperature T1, room needs heat supply, and air conditioner in machine room needs cooling supply, i.e. room air conditioning system needs
Heating mode is run, air conditioner in machine room needs to carry out liquid phase heat pipe mode, and refrigeration valve (9) is closed at this time, and heat pipe valve (7) is opened, the
One throttling set (3), second throttling device (10) are closed, and computer-room air conditioning system divides liquid storage device (4), liquid pump (5), check valve by gas
(11), computer room evaporator (6), heat pipe valve (7), condenser/evaporator (12) and heat pipe condenser (8) constitute circuit；Room air conditioner system
System by room compressor (13), four-way valve (14), indoor heat exchanger (15), third throttling set (16), condenser/evaporator (12),
4th throttling set (17) and outdoor heat exchanger (18) constitute heating circuit.
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| CN201811132504.3A CN109340960B (en) | 2018-09-27 | 2018-09-27 | Combined air conditioning system of machine room and control method thereof |
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| CN201811132504.3A CN109340960B (en) | 2018-09-27 | 2018-09-27 | Combined air conditioning system of machine room and control method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111031759A (en) * | 2019-12-20 | 2020-04-17 | 漳州科华技术有限责任公司 | Machine room air conditioning device and control method |
| CN112954955A (en) * | 2021-01-25 | 2021-06-11 | 华为技术有限公司 | Cooling system and data center |
| CN115013955A (en) * | 2022-05-26 | 2022-09-06 | 深圳市艾特网能技术有限公司 | Natural cooling air conditioning system and control method for fan in natural cooling air conditioning system |
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