Pump-driven two-phase loop cooling system for high power density cabinets

Abstract

The invention discloses a pump-driven two-phase loop cooling system for cabinets with high power density, which comprises sequentially connected refrigerant liquid storage tanks, pumps, filters, shunt pipes, multiple server heat dissipation units, confluence pipes, heat sinks, and heat sinks. The exchanger, the heat exchanger and the refrigerant liquid storage tank are connected to form a circulation loop; the branch pipe includes a liquid inlet port, a plurality of first branch ports and second branch ports arranged in layers from bottom to top; the manifold includes a main outlet , a plurality of first confluence ports, second confluence ports and auxiliary outlets arranged in layers from bottom to top, the second diversion port is connected to the second confluence port through a one-way valve, the front end of the liquid inlet of each server cooling unit is set There are local resistance elements. This system can dissipate heat from the main heating elements of the server, effectively solving the problem of local hot spots in servers and cabinets, and uses the micro-channel flow boiling heat transfer technology to significantly increase the power density of servers in a single cabinet and reduce the noise of cooling fans in the cabinet.

Description

technical field [0001] The invention belongs to the technical field of equipment heat dissipation, and in particular relates to a pump-driven two-phase loop heat dissipation system for high power density cabinets. Background technique [0002] With the rapid development of information technology, the demand for servers with faster computing speed and more powerful functions has soared, which has led to a significant increase in the power density of a single cabinet. [0003] The traditional air cooling mode uses air forced convection to dissipate heat from the server. Due to the large thermal resistance of the air, a large temperature difference is required between the air and the server to achieve heat transfer. Therefore, supporting refrigeration equipment, such as computer room air conditioners, is required to cool the air and maintain Effective cooling temperature difference. When the power density of a single cabinet continues to increase, the air cooling mode can only...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the defects of the above-mentioned prior art, the present invention provides a pump-driven two-phase loop heat dissipation system for high power density cabinets. This system can dissipate heat for the main heating elements of the server, effectively solve the problem of local hot spots, and Using micro-channel flow boiling heat transfer technology, the power density of servers in a single cabinet can be significantly improved, and the noise of cooling fans in the cabinet can be reduced.

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