Passive type heat pipe natural cool multi-union refrigeration system with auxiliary cold source and control method of passive type heat pipe natural cool multi-union refrigeration system

Abstract

The invention relates to a passive type heat pipe natural cool multi-union refrigeration system with an auxiliary cold source and a control method of the passive type heat pipe natural cool multi-union refrigeration system. The refrigeration system comprises a heat pipe circulation system and an auxiliary cold source circulation system. The heat pipe circulation system comprises at least two heatpipe evaporators, a heat pipe condenser connected with the heat pipe evaporators and used for cooling heat pipe heat exchange media, and a heat exchange medium pressurizing unit, wherein the heat exchange medium pressurizing unit is connected with the heat pipe evaporators and the heat pipe condenser and used for conveying the heat pipe heat exchange media obtained after heat pipe condenser cooling to at least two heat pipe evaporators. The auxiliary cold source circulation system comprises a heat exchanger used for conducting heat exchange on the heat pipe heat exchange media and the auxiliary cold source, and a compressor for compressing the auxiliary cold source. A cold source inlet of the heat exchanger is connected with a cold source outlet of the condenser, and a cold source outlet of the heat exchanger is connected with a cold source inlet of the compressor. A heat exchange medium inlet of the heat exchanger is connected with an outlet of the heat pipe condenser. A heat exchangemedium outlet of the heat exchanger is connected with an inlet of the heat exchange medium pressurizing unit.

Description

technical field [0001] The invention relates to a cold source of refrigeration technology, more specifically, to a passive heat pipe natural cooling multi-connected refrigeration system with an auxiliary cold source and a control method thereof. Background technique [0002] With the development of the data center industry in recent years and the increasing requirements of the national energy-saving policy, energy-saving development and high-reliability applications will be the first choice for green data center construction solutions. At present, traditional cooling solutions are adopted in many data centers, such as air-cooled direct expansion type, chilled water type, and air-cooled dual cold source type. Traditional cooling solutions mainly have the following deficiencies: [0003] 1. The air-conditioning units of the traditional solution unit are relatively scattered, occupy a large space, and have a single terminal type; [0004] 2. The use of natural cooling sources...

AI Technical Summary

Problems solved by technology

[0003] 1. The air-conditioning units of the traditional solution unit are relatively scattered, occupy a large space, and have a single terminal type;

[0004] 2. The use of natural cooling sources under low-temperature outdoor conditions is limited, and it is difficult to meet the construction requirements of green and energy-saving computer rooms;

[0005] 3. The traditional chilled water cooling solution has a relatively high construction cost, and it is difficult to configure redundant hosts, and there are many security nodes to be controlled;

[0006] 4. In the case of outdoor low temperature, the chilled water coil is easy to freeze and cannot carry out the risk of normal water supply cycle

[0008] 1. Air-to-air heat exchange cooling scheme, the heat exchange efficiency is relatively low, and the size of the same cooling capacity is relatively large;

[0009] 2. Fresh air cooling scheme, fresh air cleaning treatment and post-maintenance costs are relatively high;

[0010] 3. Indirect evaporative cooling or direct evaporative cooling with water as the medium, the cost of water treatment and air treatment is relatively high

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