Heat pipe composite air conditioning unit for machine room and working mode of heat pipe composite air conditioning unit

Abstract

The invention discloses a heat pipe composite air conditioning unit for a machine room and a working mode of the heat pipe composite air conditioning unit. The heat pipe composite air conditioning unit is characterized in that a cold source system in the air conditioning unit is a heat pipe and compression refrigeration circulating composite system consisting of a compressor unit, an indoor heat exchanger and the like, and the compressor unit consists of a multi-channel outdoor heat exchanger and a plurality of compressors. Three different working modes including running refrigeration circulation, heat pipe and auxiliary refrigeration composite circulation and heat pipe circulation respectively run by means of controlling an electromagnetic valve to switch executed circulation paths, and utilization of cold source of outdoor low-temperature air is maximized in most seasons around the year. The heat pipe composite air conditioning unit is applicable to refrigeration needs of machine rooms, substations and the like on all-weather air conditioning, running temperature zones of heat pipes are wide, and the heat pipe composite air conditioning unit is compact in structure and high in reliability, and is energy-saving and environment-friendly.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to a heat pipe composite air conditioning unit capable of maximizing the use of indoor and outdoor temperature differences to transport heat at low cost and its working method. 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...

AI Technical Summary

Problems solved by technology

This system makes up for the deficiencies of the previous two systems in terms of utilizing the cooling capacity of outdoor low-temperature air and ensuring indoor air quality. However, if the two working modes of compression refrigeration and heat pipe circulation refrigeration are switched at a certain temperature point, can the cooling capacity of the system be stable? Connection and reliable work, etc., are worthy of consideration; at the same time, the upper limit temperature of the heat pipe circulation is too low, which is not conducive to maximizing the use of the cooling capacity of the low-temperature outdoor air

[0007] Utility model patent ZL01278831.7 discloses an energy-saving refrigeration cycle device with a circulation pump. The use of a circulation pump in the heat pipe circulation system is conducive to improving the efficiency of the heat pipe cycle, and also simplifies the installation of the heat pipe system. However, ZL01278831.7 is similar to CN201010528027.X in terms of maximizing the use of the cooling capacity of outdoor low-temperature air, that is, the upper limit temperature of the heat pipe cycle must be low to smoothly connect with the refrigeration cycle

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