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Three-pipe system multifunctional multi-connected air conditioner system and control method thereof

A multi-connected air conditioner and air-conditioning system technology, applied in the three-control multi-functional multi-connected air-conditioning system and its control field, can solve the problems of low-frequency operation of indoor air-conditioning compressors and failure to recover waste heat in the computer room, and avoid frosting and defrosting Problems, save space and equipment, ensure the effect of cooling effect

Active Publication Date: 2016-12-07
GD MIDEA HEATING & VENTILATING EQUIP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is: in order to solve the problem that the existing indoor multi-connected air conditioner and the computer room air conditioner are installed separately, the waste heat in the computer room cannot be recovered, and the indoor air conditioner has problems such as low-frequency operation of the compressor, low-temperature startup, lubrication, energy regulation, etc.

Method used

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  • Three-pipe system multifunctional multi-connected air conditioner system and control method thereof

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Embodiment 1

[0031] Such as figure 1 As shown, this embodiment discloses a three-control multi-functional multi-connected air-conditioning system. The system is composed of an indoor air conditioner and a computer room air conditioner coupled to form a multi-connected structure, including: a compressor 1, a condenser 2, used to control the computer room or The equipment room evaporator 5 for continuous cooling of the equipment of the base station, and at least one indoor evaporator 4 for indoor cooling or heating, the first ends of the indoor evaporator 4 and the condenser 2 pass through two The branches communicate with the inlet and outlet of the compressor 1 respectively, the first end of the machine room evaporator 5 communicates with the inlet of the compressor 1, and the first end of the machine room evaporator 5 is provided with a second section A flow device 6; the second ends of the indoor evaporator 4 and the machine room evaporator 5 are provided with a first throttling device 3...

Embodiment 2

[0041] Such as Figure 2 to Figure 5 As shown, this embodiment discloses the control method of the three-pipe multifunctional multi-connected air-conditioning system described in Embodiment 1, by opening or closing each of the valves to adjust the flow direction of the refrigerant to achieve the following working conditions:

[0042] Overall refrigeration status: such as figure 2 As shown, the refrigerant coming out of the compressor 1 first passes through the condenser 2 to dissipate heat, then enters the evaporator 5 in the machine room and the evaporator 4 in each room through the first throttling device 3 for refrigeration, and finally returns to Inside the compressor 1; in summer, when the indoor evaporator 4 needs to be refrigerated, and the evaporator 5 in the machine room also needs to be refrigerated, the air-conditioning system operates in overall cooling mode at this time, and the second throttling device 6 at the first end of the evaporator 5 in the machine room c...

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Abstract

The invention belongs to the technical field of air conditioners, and discloses a three-pipe system multifunctional multi-connected air conditioner system and a control method thereof. The system comprises a compressor, a condenser, a machine room evaporator and indoor evaporators. The first end of the condenser communicates with an inlet and an outlet of the compressor through two branches. The first end of the machine room evaporator communicates with the inlet of the compressor, and a second throttling device is arranged at the first end of the machine room evaporator. First throttling devices are arranged at the second ends of the indoor evaporators and the second end of the machine room evaporator. The second ends of the indoor evaporators, the second end of the machine room evaporator and the second end of the condenser communicate with one another. According to the three-pipe system multifunctional multi-connected air conditioner system and the control method thereof, a many-online machine and a machine room air conditioner are coupled with each other and can independently work, the problems about small-load running, lubricating, oil returning, frosting and defrosting, starting and stopping and the like of the many-online machine can be solved, waste heat of a machine room is recycled, space is saved, and equipment cost is reduced; and due to the second throttling devices, the machine room evaporator and the indoor evaporators have different evaporation temperatures, and the refrigerating effect of the machine room evaporator is guaranteed.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to a three-control multifunctional multi-connected air conditioning system and a control method thereof. Background technique [0002] With the rapid development of the digital construction of the information industry and the intelligentization of home appliances, the number of computer rooms and base stations has increased rapidly. Due to the large sensible heat load of the data center and the closed enclosure structure, the air conditioning systems of the computer rooms and base stations need to be refrigerated all year round; and the room The air-conditioning system is mainly used for heating in winter and cooling in summer. According to statistics, the energy consumption of air-conditioning in computer rooms and base stations accounts for more than 40% of the total energy consumption; The operation process is relatively independent; in winter and other low-temperature s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B7/00F25B41/04F25B41/06F25B47/00F25B41/20F25B41/30
CPCF25B7/00F25B47/006F25B2313/007F25B2313/023F25B41/22F25B41/30
Inventor 王飞
Owner GD MIDEA HEATING & VENTILATING EQUIP CO LTD
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