Server and dehumidification energy-saving type negative pressure liquid cooling system thereof

Abstract

The invention discloses a dehumidification energy-saving type negative pressure liquid cooling system which comprises a water tank cavity for circulating flow of cooling liquid, and further comprises a vacuum pump communicated with the water tank cavity and used for sucking mixed gas in the water tank cavity so as to form negative pressure in the water tank cavity. The dehumidifier is communicated with an exhaust port of the vacuum pump and used for condensing cooling liquid steam in the mixed gas, and the dehumidifier sends collected liquid cooling liquid back into the water tank cavity through a liquid return pipe. After mixed gas in the cavity of the water tank is discharged through the vacuum pump, most of cooling liquid steam is condensed into liquid cooling liquid again through the condensation effect of the dehumidifier on the cooling liquid steam, and finally the liquid cooling liquid is sent back into the cavity of the water tank through the liquid return pipe, so that feedback type online supplementing of the cooling liquid is achieved, and the cooling efficiency is improved. Therefore, the cooling liquid dissipation rate of the negative pressure liquid cooling system can be reduced, and the system liquid supplementing maintenance frequency and the operation and maintenance cost are reduced. The invention further discloses the server, and the beneficial effects of the server are as mentioned above.

Description

technical field [0001] The invention relates to the technical field of liquid cooling servers, in particular to a dehumidification and energy saving negative pressure liquid cooling system. The invention also relates to a server. Background technique [0002] With the exponential increase in the power consumption of CPU, GPU and other components, the traditional air cooling technology has reached its cost-effective cooling limit. With the national initiative to build a green data center, it can solve the problem of higher heat flux density and achieve higher energy efficiency. The liquid cooling technology came into being and has developed vigorously in recent years. [0003] Common chip-level liquid cooling technologies include immersion liquid cooling and cold plate liquid cooling. Among them, immersion liquid cooling has a small application scale due to high cost and difficult maintenance. Cold plate liquid cooling uses a pump to drive the cooling liquid (water, ethyle...

AI Technical Summary

Problems solved by technology

However, the vacuum pump needs to exhaust air while pumping air from the water tank chamber. Since the air pressure in the water tank chamber is very low, the internal coolant is easily evaporated, which leads to a very high humidity in the discharged gas. A lot of coolant vapor is mixed, which leads to the need for regular liquid replenishment, which has high requirements for system operation and maintenance, and it is easy to cause problems such as condensation

In some existing technologies, a gas-liquid separator is connected to the gas outlet of the vacuum pump. However, the gas-liquid separator can only separate liquid water, but cannot separate the gaseous cooling liquid contained in the mixed gas, resulting in a large loss of cooling liquid.

Images