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Heat pipe work fluid and preparing process thereof

A working fluid and heat pipe technology, applied in the field of heat pipes, can solve problems such as hindering heat transfer, generation of air bubbles, blockage of heat pipes, etc., and achieve the effect of improving heat transfer efficiency

Inactive Publication Date: 2006-12-13
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the size of nanoparticles is small, and it is very easy to condense due to van der Waals force, causing the heat pipe to block and lose its working ability. It is easy to generate air bubbles during work and hinder heat transfer

Method used

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  • Heat pipe work fluid and preparing process thereof
  • Heat pipe work fluid and preparing process thereof
  • Heat pipe work fluid and preparing process thereof

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Embodiment Construction

[0020] The heat pipe working fluid and its preparation method will be further described in detail below with reference to the accompanying drawings and several embodiments.

[0021] The heat pipe working fluid provided by this embodiment, such as figure 1 As shown, a heat pipe working fluid 40 is installed in the container 10, which includes a protective liquid 410 and a plurality of nanoparticles 420 dispersed therein. The protective liquid 410 is a polymer solution, and the solute of the polymer solution includes polyethylene Alcohol (Poly(VinylAlcohol)) solution, polyvinylpyrrolidone (Poly(Vinyl Pyrrolidone)) solution, the solvents used include water, polar solvents containing hydroxyl groups, etc. Plurality of nanoparticles 420 includes nanotubes, nanospheres, hollow nanospheres, nanowires, nanorods, and the like. The materials of the plurality of nanoparticles 420 include carbon materials, or metal materials such as gold, silver, copper and alloys thereof.

[0022] The ...

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Abstract

The invention relates to a heat pipe working liquid, which comprises a protective liquid and dispersed several nanometer particles. Wherein, said protective liquid is a macromolecule solution. The invention also provides a preparation method, which comprises: providing several nanometer particles; dispersing the nanometer particles into one macromolecule solution to form the working liquid. In said invention, the nanometer particles and the macromolecule protective liquid are mixed uniformly; and the solid baffle between macromolecules can stabilize the nanometer particles, without surface activator or outer stabilizers, to avoid generating foam inside the heat pipe, or generate other effect, to improve the heat transmission efficiency.

Description

【Technical field】 [0001] The invention relates to heat pipes, in particular to a heat pipe working fluid and a preparation method thereof. 【Background technique】 [0002] In recent years, the rapid development of electronic technology, the high frequency and high speed of electronic devices and the density and miniaturization of integrated circuits have caused a sharp increase in the heat generation of electronic devices per unit volume. Heat pipe technology is suitable for solving current electronic problems due to its high efficiency, compactness, flexibility and reliability. The heat dissipation problem derived from the performance improvement of the device. [0003] For the heat pipe to work normally and effectively, it is usually required that the capillary structure of the liquid-absorbing core can make the working fluid evenly distributed in the heat pipe, and can make the working fluid flow back quickly, and require the working fluid to have a high heat of vaporizati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D15/02
CPCC09K5/10
Inventor 董才士
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD