Combined air-conditioning system for machine room and room and control method thereof

Abstract

The invention discloses a combined air-conditioning system for machine rooms and rooms, comprising a machine room compressor, a refrigeration condenser, a machine room throttling device, a gas separation liquid storage device, a liquid pump, a machine room evaporator, a heat pipe valve, and a heat pipe condenser , refrigeration valve, condensing evaporator, room compressor, four-way valve, indoor heat exchanger, first throttling device, second throttling device, outdoor heat exchanger and bypass valve, the inlet of the refrigeration condenser communicates The outlet of the machine room compressor; the outlet of the refrigeration condenser is connected to the inlet of the machine room throttling device; the gas separator is connected to the inlet of the machine room compressor, the outlet of the heat pipe condenser, The outlet of the throttling device in the machine room communicates with the inlet of the liquid pump. The invention switches and operates different working modes according to the outdoor ambient temperature, which can not only realize high-efficiency cooling of the computer room, but also realize energy-efficient heating of the computer room throughout the year with heat recovery, make full use of the outdoor natural cold source and the heat of the computer room, and have excellent energy-saving and emission-reducing effects.

Description

technical field [0001] The invention relates to the technical field of air conditioning. Background technique [0002] The rapid development of information industry and digital construction has promoted the number of computer rooms and base stations, and the construction scale has increased rapidly. According to statistics, the energy consumption of air conditioners in computer rooms and base stations accounts for 40% to 50% of the total energy consumption. The sensible heat load ratio of the computer room and the base station is large, and it needs to run continuously throughout the year. In the season when the indoor temperature is lower than the outdoor temperature, the conventional air conditioning system still needs to continue to operate the compression refrigeration system, and the refrigeration system has low working efficiency and It is prone to failure. If the temperature difference between indoor and outdoor can be used to transport heat at low cost or provide coo...

AI Technical Summary

Problems solved by technology

The sensible heat load ratio of the computer room and the base station is large, and it needs to run continuously throughout the year. In the season when the indoor temperature is lower than the outdoor temperature, the conventional air conditioning system still needs to continue to operate the compression refrigeration system, and the refrigeration system has low working efficiency and It is prone to failure. If the temperature difference between indoor and outdoor can be used to transport heat at low cost or provide cooling for the indoor side, the energy consumption and operating cost of the air conditioning system will be greatly reduced

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