Environment-friendly heat pipe working medium

A gravity heat pipe and working fluid technology, applied in the field of cooling medium, can solve the problems of not being suitable for large doses, high manufacturing costs, and high system pressure, and achieve good heat exchange performance, high safety, and good stability.

Inactive Publication Date: 2020-12-01
ZHEJIANG RES INST OF CHEM IND CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Considering safety and environmental requirements, these working fluids have insurmountable defects
For example: the initial temperature of water is high, and the equipment must be well protected to prevent potential leakage; ammonia water is highly irritating and will cause poisoning if it leaks; methanol and acetone are flammable compounds and are not suitable for large doses; HCFC-22 can destroy the ozone layer, and its global warming potential (GWP) is 1810; although HFC-134a and R410a will not destroy the ozone layer, their GWP value has reached 1300 or higher, and the high system pressure leads to manufacturing costs high

Method used

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Embodiment Construction

[0028] The present invention will be further described below in conjunction with specific examples, but the present invention is not limited to these specific implementations. Those skilled in the art will realize that the present invention covers all alternatives, modifications and equivalents as may be included within the scope of the claims.

[0029] Embodiments of the present invention relate to working fluids for heat pipes, such as gravity-type heat pipes, particularly for cooling electronic devices such as computers, communication base stations, servers, or Internet Data Centers (IDCs). Heat pipes use a phase change in a working fluid, such as between a liquid and a gas phase, to transfer heat from one area to another. The normal operation of the heat pipe requires a saturated working fluid. The working fluid absorbs latent heat (evaporation heat) in the evaporation area and evaporates from liquid to gas, and condenses from gas to liquid in the condensation area to rele...

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Abstract

The invention discloses a gravity assisted heat pipe. Working fluid of the gravity assisted heat pipe is selected from HFO-1234ze(Z), HFO-1234ze(E), HFO-1336mzz(Z), HFO-1336mzz(E), HFO-1224yd(Z), HFO-1233zd(E) and a mixture thereof. The gravity assisted heat pipe has the advantages of being environmentally friendly, good in cooling performance, low in manufacturing cost and the like, and is suitable for cooling communication base stations, servers or data centers.

Description

technical field [0001] The invention relates to a cooling medium, in particular to a gravity heat pipe cooling medium. Background technique [0002] In recent years, with the rapid development of the Internet industry, the Internet Data Center (IDC) has risen rapidly, and the market demand for IDC has grown rapidly. In 2016, the scale of China's IDC market reached 71.45 billion yuan, and it is estimated that by 2019, the scale of China's IDC market will reach 180 billion yuan. The energy consumption of data centers has also increased rapidly. In 2016, the electricity consumption of China's data centers exceeded 100 billion kWh, exceeding the annual power generation of the entire Three Gorges Power Station (90 billion kWh), accounting for 1% of the country's total electricity consumption. Reaching 2% of total global electricity consumption. [0003] The energy consumption of IDC includes IT equipment, refrigeration equipment, power distribution system and other auxiliary eq...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H05K7/20C09K5/04
CPCH05K7/2029H05K7/20309H05K7/20318C09K5/04F01K25/10F25B23/006F25B2400/12F28D15/0266F01K25/08C09K2205/22
Inventor 郭智恺权恒道赵升孙华峰杨会娥欧阳洪生杨刚罗霞
Owner ZHEJIANG RES INST OF CHEM IND CO LTD
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