Phase-change heat pipe with high reliability and high heat transfer performance

A reliable and high heat transfer technology, applied in the direction of heat storage equipment, heat exchange equipment, heat exchanger types, etc., can solve the problems that have not yet collected data, no explanation or report found, etc., and achieve good isothermal performance and weight index Small, highly reliable effect

Inactive Publication Date: 2017-11-07
SHANGHAI SATELLITE ENG INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] At present, there is no description or report of similar technology to the

Method used

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  • Phase-change heat pipe with high reliability and high heat transfer performance
  • Phase-change heat pipe with high reliability and high heat transfer performance
  • Phase-change heat pipe with high reliability and high heat transfer performance

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Embodiment 1

[0026] The phase-change heat pipe body of this embodiment is high-purity ammonia, and the phase-change material is hexadecane (the phase-change heat pipe body is 700mm, and the filling length of the phase-change material is 670mm). The relevant data of the calculation and test are shown in Table 1. .

[0027] Table 1

[0028]

[0029] As shown in Table 1, the 42mm×9.1mm double-hole phase-change heat pipe body has almost no change in external dimensions and only 8% increase in weight compared with the single-hole phase-change heat pipe body, and the maximum heat transfer capacity at 20°C has increased. 41.7%, the heat transfer capacity of the double-hole phase change heat pipe body is significantly improved.

[0030] The reliability calculation of the phase-change heat pipe body of the present invention shows that the basic failure rate of the phase-change heat pipe body is 100 fit. According to the requirement that the on-orbit operating life of the heat pipe is ≥ 5 years,...

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Abstract

The invention provides a phase-change heat pipe with high reliability and high heat transfer performance. The phase-change heat pipe comprises a first phase-change hole, a second phase-change hole, a third phase-change hole, a first heat pipe hole, a second heat pipe hole, a phase-change heat pipe body and a phase-change material. The first heat pipe hole is located between the first phase-change hole and the second phase-change hole. The first phase-change hole is located in the left side of the second phase-change hole. The second heat pipe hole is located between the second phase-change hole and the third phase-change hole. The second phase-change hole is located in the left side of the third phase-change hole. The first phase-change hole, the second phase-change hole, the third phase-change hole, the first heat pipe hole and the second heat pipe hole are all connected with the phase-change heat pipe body. The phase-change heat pipe body is loaded with the phase-change material. The requirement of satellites for the application reliability of the heat pipe can be met, and the temperature control requirements for satellite load antennae and one machine are met.

Description

technical field [0001] The invention relates to a phase change heat pipe, in particular to a phase change heat pipe with high reliability and high heat transfer performance. Background technique [0002] At present, most of the high-power load antennas and stand-alone units on satellites use metal aluminum ammonia phase change heat pipes to balance the temperature, suppress the temperature rise when the load stand-alone unit is working, and reduce the temperature fluctuation of the load stand-alone unit. With the development of satellite technology and the continuous expansion of demand, there are more and more load stand-alone units with high power and high heat flux for short-term work. The temperature rise index is strict and the heat pipe layout space is tight. However, the traditional single-hole phase-change aluminum ammonia heat pipe has limited heat transfer capacity and single-hole no backup design. It can no longer fully meet the complex temperature control require...

Claims

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Application Information

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IPC IPC(8): F28D20/02F28F23/00
CPCF28D20/021F28F23/00Y02E60/14
Inventor 史奇良翟载腾胡小康程锋赵小翔
Owner SHANGHAI SATELLITE ENG INST
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