Multi-connected air conditioning unit with natural cooling function and liquid supplied by liquid pump

A multi-connected air-conditioning and natural cooling technology, applied in refrigerators, air-conditioning systems, refrigeration components, etc., can solve the problem of high energy consumption, improve the energy efficiency ratio, enrich the types of building equipment, and reduce the installation space.

Inactive Publication Date: 2010-04-14
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the system still needs cooling operation even in winter, and the energy consumption is still relatively high. Ther

Method used

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  • Multi-connected air conditioning unit with natural cooling function and liquid supplied by liquid pump
  • Multi-connected air conditioning unit with natural cooling function and liquid supplied by liquid pump
  • Multi-connected air conditioning unit with natural cooling function and liquid supplied by liquid pump

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Experimental program
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Effect test

Embodiment 1

[0016] figure 2 It is a schematic diagram of the structure and principle of a liquid pump liquid supply multi-connected air conditioner unit with natural cooling function provided by the present invention. This scheme adopts a two-inlet, one-outlet three-way valve 14 and a one-inlet, two-outlet three-way valve 15 . The multi-connected air conditioner unit includes an outdoor unit 12 and an indoor unit 13. The outdoor unit 12 includes a compressor 1, an outdoor heat exchanger 2 connected to the exhaust port of the compressor 1, and a liquid bypass at both ends. The throttling device 4 of the through valve 16, a liquid pump 6 for driving the circulation of liquid refrigerant and a low-pressure circulation accumulator 5 for refrigerant gas-liquid separation; the indoor unit 13 is replaced by a plurality of parallel indoor units. Heater 10 is composed of; the suction port of the liquid pump 6 is connected to the bottom outlet of the low-pressure circulating liquid accumulator 5, ...

Embodiment 2

[0021] image 3 It is a schematic diagram of the structure and principle of another liquid pump liquid supply multi-connected air conditioner unit with natural cooling function provided by the present invention. This solution uses the high-pressure gas valve 17, the natural cooling valve 18 and the low-pressure gas valve 19 to replace the first embodiment The two-in-one-out three-way valve 14 and the one-in-two-out three-way valve 15. The multi-connected air conditioner unit includes an outdoor unit 12 and an indoor unit 13. The outdoor unit 12 includes a compressor 1, an outdoor heat exchanger 2 connected to the exhaust port of the compressor 1, and a liquid bypass at both ends. The throttling device 4 of the through valve 16, a liquid pump 6 for driving the circulation of liquid refrigerant and a low-pressure circulation accumulator 5 for refrigerant gas-liquid separation; the indoor unit 13 is replaced by a plurality of parallel indoor units. Heater 10 is composed of; the ...

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Abstract

A multi-connected air conditioning unit with a natural cooling function and liquid supplied by a liquid pump relates to a multi-connected air conditioning device utilizing the liquid pump to supply liquid to realize natural cooling or mechanical cooling of a plurality of spaces. The multi-connected air conditioning unit comprises an outdoor unit and indoor units, wherein a two-inlet one-outlet three-way valve, a one-inlet two-outlet three-way valve, a low-pressure circulating liquid reservoir, the liquid pump and an outdoor throttle device are arranged in the outdoor unit. The multi-connected air conditioning unit is mainly characterized in that refrigerating circulation and natural circulation are switched by the two-inlet one-outlet three-way valve and the one-inlet two-outlet three-way valve, the spaces can be refrigerated by utilizing steam compression refrigerating circulation in high external temperature or by utilizing natural cooling circulation in low external temperature, and low-temperature liquid generated by the outdoor unit is delivered to each indoor unit by the liquid pump. Compared with the prior art, the multi-connected air conditioning unit utilizes outdoor air cooling capacity to refrigerate sufficiently, shortens running time of a compressor of the air conditioning unit, increases annual running efficiency, and breaks through limitation of the existing natural cooling unit to installation position of the outdoor unit.

Description

technical field [0001] The invention relates to a liquid pump liquid supply multi-connected air conditioner unit with natural cooling function, which belongs to the technical field of refrigeration and air conditioning. It is especially suitable for buildings with large internal areas and high-density heating spaces such as telecommunication equipment rooms, etc., which require year-round cooling. Background technique [0002] With the wide application of large-scale computers, the rapid popularization of mobile communications and the advent of the 3G network era, data services are showing a trend of diversification and comprehensive development, and the electronic equipment in data computer rooms has also developed rapidly, which has surpassed the definition of ordinary computer rooms. . Large commercial servers in the data center will generate a lot of heat, and the heat flux density per unit building area is as high as several kW / m 2 , the use of conventional floor air ...

Claims

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Application Information

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IPC IPC(8): F24F1/00F25B41/04
Inventor 石文星周德海王宝龙李先庭
Owner TSINGHUA UNIV
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