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Micro-channel machine room air conditioner provided with gas-liquid separation device arranged in front of evaporator and used for data center

A gas-liquid separation device and computer room air-conditioning technology, which is applied in the direction of evaporator/condenser, refrigerator, mechanical equipment, etc., can solve the problems of low efficiency and uneven distribution of the refrigeration system, so as to ensure the cooling effect and improve the heat exchange efficiency Effect

Inactive Publication Date: 2016-11-16
CHINA INFOMRAITON CONSULTING & DESIGNING INST CO LTD +1
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AI Technical Summary

Problems solved by technology

[0002] At present, microchannel heat exchangers are widely used in automotive air conditioners, commercial air conditioners, computer room air conditioners and other fields, mainly as condensers. When traditional microchannel heat exchangers are used as refrigeration system evaporators, due to the refrigerant in each flat tube The density of the gas-liquid two-phase refrigerant in the microchannel is different, resulting in very uneven distribution. The phenomenon of "dry evaporation" and "excessive liquid supply" are very common among the microchannels of the flat tubes of the heat exchanger, and the uneven distribution of the refrigerant Uniformity has a great impact on the performance of the system, which greatly reduces the efficiency of the refrigeration system

Method used

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  • Micro-channel machine room air conditioner provided with gas-liquid separation device arranged in front of evaporator and used for data center
  • Micro-channel machine room air conditioner provided with gas-liquid separation device arranged in front of evaporator and used for data center
  • Micro-channel machine room air conditioner provided with gas-liquid separation device arranged in front of evaporator and used for data center

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Embodiment Construction

[0027] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0028] In the figure: 1-compressor; 2-microchannel condenser; 3-first fan; 4-first capillary throttling device; 5-first gas-liquid separation device; 6-microchannel evaporator; 7-the first Two fans; 8-second gas-liquid separation device; 9-second capillary throttling device; 61-flute-shaped liquid pipe.

[0029] The schematic diagram of the system cycle of the present invention is as Figure 1 to Figure 5 As shown, the low-temperature and low-pressure refrigerant enters the compressor 1, is compressed to a high-pressure gaseous state and flows out, and the high-pressure gaseous refrigerant enters the microchannel condenser 2 for condensation and heat exchange, and the refrigerant changes from a high-pressure gaseous state to a high-pressure liquid state; the high-pressure liquid refrigerant Entering the first capillary throttling dev...

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Abstract

The invention discloses a micro-channel machine room air conditioner provided with a gas-liquid separation device arranged in front of an evaporator and used for a data center. The air conditioner comprises a compressor, a micro-channel condenser, a first capillary throttling device, a first gas-liquid separation device, the micro-channel evaporator (comprising a flute type distribution pipe), a second capillary throttling device and a second gas-liquid separation device, wherein one gas-liquid separation device is arranged in front of the micro-channel evaporator, so that a refrigerant in the micro-channel evaporator is in liquid state, uniform distribution by the aid of the micro-channel evaporator is facilitated, the refrigerating effect of the machine room air conditioner is guaranteed, and the heat exchange efficiency is improved.

Description

technical field [0001] The invention belongs to the field of refrigeration, and relates to a micro-channel computer room air conditioner with an evaporation front-end gas-liquid separation device for a data center. Background technique [0002] At present, microchannel heat exchangers are widely used in automotive air conditioners, commercial air conditioners, computer room air conditioners and other fields, mainly as condensers. When traditional microchannel heat exchangers are used as refrigeration system evaporators, due to the refrigerant in each flat tube The density of the gas-liquid two-phase refrigerant in the microchannel is different, resulting in very uneven distribution. The phenomenon of "dry evaporation" and "excessive liquid supply" are very common among the microchannels of the flat tubes of the heat exchanger, and the uneven distribution of the refrigerant Uniformity has a great influence on the performance of the system, which greatly reduces the efficiency...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B43/00F25B41/06F25B39/02F25B41/37
CPCF25B39/02F25B43/00F25B2400/23F25B2339/02F25B41/37
Inventor 张忠斌黄毅黄虎蒋赟昱王明皓张家燕吉根林吴琦琦
Owner CHINA INFOMRAITON CONSULTING & DESIGNING INST CO LTD
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