Heat pipe backboard air conditioner multi-connection unit

Abstract

The invention provides a heat pipe backboard air conditioner multi-connection unit. The heat pipe backboard air conditioner multi-connection unit comprises a plurality of heat pipe back plate air conditioners, a liquid storage tank, a circulating pump and a cold source system; each heat pipe back plate air conditioner is connected with a refrigerant liquid inlet branch pipe and a refrigerant gas return branch pipe, the refrigerant liquid inlet branch pipe is connected to a refrigerant liquid inlet main pipe, the refrigerant air return branch pipe is connected to the refrigerant return air mainpipe, the refrigerant return air main pipe is connected with an inlet of the cold source system, the refrigerant liquid inlet main pipe is connected with the circulating pump, and the liquid storagetank is located between the circulating pump and the outlet of the cold source system; back plate electronic expansion valves are arranged on connecting pipelines of the heat pipe back plate air conditioners and the refrigerant liquid inlet branch pipe; the cold source system comprises a natural cold source and a compressor cold source, and the natural cold source and the compressor cold source are connected in parallel; and the cold source system is connected between the refrigerant return air main pipe and the liquid storage tank, so that the cold source system of the whole device has threeoperation modes, namely a cold source mode of the compressor, a natural cold source mode, and a mixed mode that the compressor and the natural cold source are simultaneously used.

Description

technical field [0001] The present application relates to the technical field of data center refrigeration, in particular to a heat pipe backplane air conditioner multi-connected unit. Background technique [0002] With the development of the data center, the greater the heat, the existing computer room air conditioning system adopts the thermal management method of controlling the overall temperature of the computer room, the heat transfer temperature difference is relatively small, and the heat transfer efficiency is low. The method of shortening the cooling distance can increase the heat transfer temperature difference, effectively improve the cooling and heat transfer efficiency, and tap the consumption reduction potential of the air conditioning system. [0003] At present, there are two main methods to shorten the cooling distance in the information room: [0004] One is the inter-row air conditioner, which sends the cold air of the air conditioning system directly to...

AI Technical Summary

Problems solved by technology

[0006] However, there are still some problems in the current backplane air conditioner scheme: 1. The current backplane air conditioner is basically a gravity heat pipe, and the water-cooled condenser is installed higher than the backplane air conditioner, which has certain requirements for the installation distance and installation height; 2. , There is a safety hazard in introducing water into the machine room

However, there is also a major problem in the air-conditioning mode that uses this heat pipe system and the conventional mechanical compression refrigeration air-conditioning joint operation: if a single compressor is used for cooling, the system cannot be backed up; if dual compressors are used for cooling, it will cause compression. The uneven distribution of machine oil in the freezer will cause damage to the compressor and fail to achieve the effect of backup

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