Immersed liquid phase change cooling medium and application thereof in cooling system of electronic equipment

A phase-change cooling and cooling medium technology, which is applied in the construction parts of electrical equipment, cooling/ventilation/heating transformation, electrical components, etc., can solve the problems of combustion explosion, electrical insulation decline, equipment short circuit, etc., and achieve the purpose of suppressing combustion, The effect of energy saving and good cooling performance

Inactive Publication Date: 2020-09-29
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since water is easy to introduce impurity ions to reduce electrical insulation, it is easy to cause short circuit of equipment
Mineral oil has high electrical insulation performance, but mineral oil is flammable, once the equipment generates electric sparks or has external fire sources, static electricity, etc., it is easy to burn and explode

Method used

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  • Immersed liquid phase change cooling medium and application thereof in cooling system of electronic equipment
  • Immersed liquid phase change cooling medium and application thereof in cooling system of electronic equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Place the desktop computer host in a closed liquid cooling device. The liquid cooling device is equipped with cooling liquid and heat exchange pipe network. The heat exchange pipe network is suspended above the cooling liquid. All accessories of the main computer are immersed in the cooling liquid. Use perfluoro-4-methyl-2-pentene as cooling liquid. The CPU generates heat during operation, and the gas formed by the vaporization of the coolant when it encounters heat is cooled down when it flows upwards and touches the heat exchange pipe network (the heat exchange pipe network is passed into ordinary tap water for cooling). Computer host external display. The temperature of the CPU and GPU is detected through the CPU-Z program, and the body is equipped with a digital display thermometer to display the temperature of the coolant. When the CPU and GPU are running at full load, the computer runs smoothly for 24 hours, the CPU temperature is 51°C, the GPU temperature is 62°...

Embodiment 2

[0028] Using the same computer configuration as in Example 1, place the mainframe of the desktop computer in a closed liquid cooling device. The liquid cooling device is equipped with a cooling liquid and a heat exchange pipe network, and the heat exchange pipe network is suspended above the cooling liquid. All accessories of the main computer Submerged in coolant. Perfluorohexanone is used as the cooling liquid. The CPU generates heat during operation, and the gas formed by the vaporization of the coolant when it encounters heat is cooled down when it flows upwards and touches the heat exchange pipe network (the heat exchange pipe network is passed into ordinary tap water for cooling). Computer host external display. The temperature of the CPU and GPU is detected through the CPU-Z program, and the body is equipped with a digital display thermometer to display the temperature of the coolant. When the CPU and GPU are running at full load, the computer runs smoothly for 24 hou...

Embodiment 3

[0030] Using the same computer configuration as in Example 1, place the mainframe of the desktop computer in a closed liquid cooling device. The liquid cooling device is equipped with a cooling liquid and a heat exchange pipe network, and the heat exchange pipe network is suspended above the cooling liquid. All accessories of the main computer Submerged in coolant. Use perfluoro-2-methyl-2,3-epoxypentane as cooling liquid. The CPU generates heat during operation, and the gas formed by the vaporization of the coolant when it encounters heat is cooled down when it flows upwards and touches the heat exchange pipe network (the heat exchange pipe network is passed into ordinary tap water for cooling). Computer host external display. The temperature of the CPU and GPU is detected through the CPU-Z program, and the body is equipped with a digital display thermometer to display the temperature of the coolant. When the CPU and GPU are running at full load, the computer runs smoothly ...

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Abstract

The invention discloses an immersed liquid phase change cooling medium and application thereof in a cooling system of electronic equipment, wherein the cooling medium is a mixture formed by mixing one, two or three of perfluoro-4-methyl-2-pentene, a hexafluoropropylene tripolymer, perfluorohexanone, perfluoroheptane, perfluorooctane, perfluoro-2-methyl-2, 3-epoxy pentane, perfluorohexane and perfluoropentane. The immersed phase change cooling medium provided by the invention has the characteristics of high electrical insulation property, low viscosity, relatively low boiling point, high gasification latent heat, good compatibility and stability, incombustibility, combustion inhibition, low global warming potential (GWP), zero ozone depletion potential (ODP) and the like.

Description

technical field [0001] The invention belongs to the field of liquid cooling medium, in particular to an immersion type low energy consumption, high safety phase change cooling medium and its application in the cooling system of electronic equipment. Background technique [0002] In the era of digital economy, with the rapid development of artificial intelligence, cloud computing, blockchain, big data technology, and supercomputers, the performance requirements for IT infrastructure equipment are getting higher and higher, and the frequency of use is getting faster and faster, which directly leads to The power consumption of infrastructure such as servers continues to increase. When the number of servers in a single cabinet remains unchanged, the power consumption of the entire cabinet in the data center shows a trend of rapid growth, which brings unprecedented challenges to the cooling of the computer room and leads to potential safety hazards. Overheated servers have also b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K7/20
CPCH05K7/208H05K7/20836
Inventor 唐浩东刘兵李利春韦小丽
Owner ZHEJIANG UNIV OF TECH
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