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Plate type heat pipe with minitype circular channels

A ring-shaped channel and plate heat pipe technology, which is applied in the direction of indirect heat exchangers, lighting and heating equipment, etc., can solve the problems of hindering the return of liquid at the condensation end, restricting heat exchange efficiency, and increasing heat transfer resistance, so as to improve anti-drying The effect of increasing the firing performance, increasing the volume of the steam chamber, and improving the heat transfer capacity

Active Publication Date: 2011-07-27
江乐新
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this type of heat pipe generally requires the evaporation end to be on the bottom and the condensation end to be on the top. Its working principle is that the working fluid evaporates at the evaporation end and transfers the heat upward to the condensation end. At this time, the two phases of vapor and liquid move in the opposite direction at high speed in the same tiny channel, generating a large frictional shear force at the vapor-liquid interface, which will hinder the return of liquid at the condensation end, making the The heat transfer resistance is greatly increased, which restricts the heat exchange efficiency. When the heat flow is too large, the micro heat pipes will even be burned out. This situation has always been the bottleneck that restricts the further improvement of the comprehensive performance of the plate micro heat pipe clusters.

Method used

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  • Plate type heat pipe with minitype circular channels
  • Plate type heat pipe with minitype circular channels
  • Plate type heat pipe with minitype circular channels

Examples

Experimental program
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Embodiment Construction

[0042] like figure 1 As shown, when the plate heat pipe is placed vertically (i.e. the main channel works at a position perpendicular to the ground or at a large angle), the steam chamber 5 is on the top, the liquid storage chamber 4 is on the bottom, the evaporation section absorbs heat, and the liquid storage chamber 4 The liquid working medium that plays the role of phase change heat is heated and evaporated. Under the action of pressure difference, the steam chooses to move to the condensation end through the evaporation channel 2, and transfers heat at a high speed. After the steam reaches the condensation end, it is heat exchanged and condensed into a liquid. The capillary force of 3 is much greater than that of the evaporation channel 2, and the liquid working medium basically flows back to the liquid storage chamber 4 under the capillary force and gravity of the return channel 3; when the evaporation channel 2 has a non-circular cross-section, a small amount of working ...

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Abstract

The invention relates to a plate type heat pipe with minitype circular channels. The interior of the plate type heat pipe is composed of a group or more than one group of minitype circular channels, wherein each circular channel comprises main channels and a connecting channel which is communicated with two ends of the main channels; the main channels are respectively an evaporation channel and a backflow channel; the connecting channel is respectively a liquid storage chamber and an evaporation chamber; the channels are filled with working media which play a role in phase change and heat transfer at a certain ratio, so that the efficient heat transfer of the heat pipe is realized; and welding, cold compression, hot compression or cementing are adopted for the sealing at each channel opening. The plate type heat pipe provided by the invention has the advantages of low heat resistance, high heat exchange efficiency, light weight, simple structure, high bearing capability and wide application, and ensures that the interface friction shearing force of vapor phase and liquid phase in the channels can be reduced maximally, thus being an efficient and practical novel heat pipe.

Description

technical field [0001] The invention relates to the technical field of phase change heat transfer and heat exchange, in particular to a plate heat pipe with a micro annular channel. Background technique [0002] The heat pipe is a kind of high-efficiency heat conductor that quickly transfers heat to the condensation end by evaporating the working fluid in the airtight container when it encounters heat at the evaporation end. In recent years, due to its efficient heat transfer performance, heat pipes have attracted more and more attention in the fields of aerospace heat transfer, microelectronic heat dissipation, solar heat transfer, and heat recovery. Researchers have conducted research on various heat pipes. Lots of research. [0003] The traditional heat pipe technology is relatively mature and has been widely used, but it needs to add capillary core inside, the structure is more complicated, the manufacturing is more troublesome, and the volume is larger, which limits it...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28D15/02
Inventor 江乐新
Owner 江乐新
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