Liquid immersion cooling cabinet, system and maintenance method for high density server

Abstract

The invention discloses a liquid immersion cooling cabinet, a system and a maintenance method for a high density server, wherein the liquid immersion cooling cabinet for the high density server is used for accommodating a first refrigerant and a fixed server which are immersed and cooled. The cabinet is provided with a cabinet liquid inlet and a cabinet liquid outlet for conveying the first refrigerant; and the cabinet further comprises a baffle plate and a backflow mechanism for separating the first refrigerant liquid level into at least two independent areas; each of the independent areas iscommunicated with a backflow liquid inlet on the backflow mechanism, and a backflow liquid outlet on the backflow mechanism is communicated with the cabinet liquid outlet. Since multiple servers areplaced in each cabinet, and the liquid level temperature of the cabinet is high when the server is working, the liquid level is divided into a plurality of independent areas by the baffle plate, and each of the independent areas is provided with the backflow mechanism to guide the hotter first refrigerant located on the liquid level to a cooling host for heat exchange, so that the liquid level channeling with high temperature is prevented, and the heat dissipation efficiency is improved.

Description

Technical field [0001] The invention relates to the technical field of server heat exchange, in particular to a liquid immersion cooling cabinet, system and maintenance method of a high-density server. Background technique [0002] IDC (Internet Data Center, Internet Data Center) computer rooms are generally equipped with raised floors and special air conditioning systems for the computer room. The server racks are placed on the raised floor. The special air conditioning system for the computer room will directly cool the air through the air supply channel under the raised floor. Into the front or inside of the server rack, the heated air at the rear of the server rack is pumped away through the ceiling return air system of the dedicated air conditioning system in the computer room to meet the heat dissipation needs of the server. IDC computer room special air conditioners generally have low energy efficiency ratios, resulting in a relatively high PUE (Power Usage Effectiveness) ...

AI Technical Summary

Problems solved by technology

[0004] Chinese patent document CN105487624A announces a high-density server liquid immersion cooling cabinet. Although the heat dissipation efficiency is good, when the loads of multiple servers in the cabinet are not completely the same, when the heat generation is different, the liquid surface temperature is higher during cooling. It is easy to form channeling on the liquid surface, which will increase the temperature of the server with small load and low calorific value

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