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High-molecular polymer wick and high-molecular polymer wick loop heat pipe

A technology of high molecular polymer and loop heat pipe, which is applied in the field of high molecular polymer liquid-absorbing core and high-molecular polymer liquid-absorbing core loop heat pipe. Low cost, poor safety and other issues, to achieve the effect of simple operation, improve work efficiency and operation safety, and improve heat transfer performance

Active Publication Date: 2022-03-25
DALIAN UNIV OF TECH +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] For this reason, the technical problem to be solved by the present invention is to provide a high molecular polymer liquid-absorbent core and a high molecular polymer liquid-absorbent core loop heat pipe with a special double-aperture structure and flexible characteristics. The liquid wick and the loop heat pipe make the liquid wick and the loop heat pipe have high capillary suction, sufficient structural strength and high safety in the manufacturing process, and solve the problem of low capillary force of the currently used gold mesh and ceramic liquid wick At the same time, it also solves the problems of complex procedures and poor safety in the manufacture and assembly of loop heat pipes

Method used

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  • High-molecular polymer wick and high-molecular polymer wick loop heat pipe

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Embodiment 1

[0033] The polymer liquid-absorbing core is formed by stacking three organic polymer films and one inorganic fiber film, and has a double-aperture structure, that is, the pore size of the organic polymer film is smaller than that of the inorganic fiber film The pore size of the organic polymer film is polypropylene film, polytetrafluoroethylene film and polyethersulfone film, and the single sheet thickness of polypropylene film, polytetrafluoroethylene film and polyethersulfone film is 0.1mm; inorganic fiber The film is an aluminum silicate fiber film, and the single sheet thickness of the aluminum silicate fiber film is 0.2mm;

[0034] The pore size of the polypropylene film is 10-100 μm, the porosity is 70.3%, the pore size of the polytetrafluoroethylene film is 5-80 μm, the porosity is 67.9%, the pore size of the polyethersulfone film is 50-100 μm, the porosity is 91.4% , the pore diameter of the aluminum silicate fiber film is greater than 100 μm and less than or equal to ...

Embodiment 2

[0038] In this embodiment, the structure of the polymer liquid-absorbing core loop heat pipe is as follows: figure 1 Shown: the high molecular polymer liquid-absorbing core loop heat pipe comprises a heating base plate 1, a heating rib, a steam chamber 3, a side wall 4 and an air outlet 9, a high molecular polymer liquid-absorbing core 5 (polymer polymer in this embodiment The material liquid-absorbing core is the polymer liquid-absorbing core in embodiment 1), pressing plate 6, upper cover plate 7, heat transfer working medium, steam pipe and condenser; Heating rib is arranged on the upper end surface of heating bottom plate 1, and heating rib There are multiple (heating ribs are fins that can conduct heat, and multiple fins are elongated shapes of different lengths, and multiple elongated fins of different lengths form a circular heating area. For details, see figure 1 ), a steam channel 2 is formed between two adjacent heating ribs; the steam chamber 3 is set inside the hea...

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Abstract

The invention discloses a high-molecular polymer wick and a high-molecular polymer wick loop heat pipe, the wick is formed by superposing two or more organic high-molecular polymer films and an inorganic fiber film, and has a double-aperture structure; the aperture of the organic high-molecular polymer film is smaller than that of the inorganic fiber film; the aperture of the organic high-molecular polymer film is greater than 0.1 mu m and less than or equal to 100 mu m, and the porosity is greater than or equal to 50%; the pore diameter of the inorganic fiber film is larger than 100 micrometers and smaller than or equal to 500 micrometers, and the porosity is larger than or equal to 80%. The high-molecular polymer wick loop heat pipe comprises the wick. The high-molecular polymer wick has a double-aperture structure and a flexible characteristic, the heat exchange performance of the loop heat pipe can be improved, and the high-molecular polymer wick is easy to operate in the preparation and assembly process, low in cost, high in safety, stable in property and easy to store and maintain.

Description

technical field [0001] The invention relates to the technical field of loop heat pipes. Specifically, it is a polymer liquid-absorbing core and a high-molecular polymer liquid-absorbing core loop heat pipe. Background technique [0002] The loop heat pipe is a passive two-phase heat transfer device with a liquid-absorbing core inside. It has the advantages of strong heat transfer capacity, long transmission distance, high stability, flexible layout, and no moving parts. It is a solution to high-frequency, high-integration One of the main technologies for the heat dissipation of electronic devices with high heat flux and high heat flux. [0003] The loop heat pipe is mainly composed of five parts, which are evaporator, steam pipe, condenser, liquid pipe and compensation cavity. The working principle of the loop heat pipe is that when the heat load is input, the liquid working medium inside the porous liquid-absorbing core structure in the evaporator absorbs heat and phase c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D15/04F28D15/02
CPCF28D15/046F28D15/0266F28D15/0275
Inventor 唐大伟胡显锋胡成志崔成孙小峰
Owner DALIAN UNIV OF TECH
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