Anti-gravity capacity improved high-temperature heat pipe structure

Abstract

The invention discloses an anti-gravity capacity improved high-temperature heat pipe structure. The high-temperature heat pipe structure comprises a tube shell and a porous sintering wicking core. Theporous sintering wicking core is provided with a steam cavity. The tube shell is divided into an evaporation section, a heat insulation section and a condensation section from top to bottom in sequence. The porous sintering wicking core is mounted in the evaporation section of the tube shell. The inner walls of the heat insulation section and the condensation section of the tube shell are provided with a plurality of axial grooves. The porous sintering wicking core is of a porous structure and has high capillary pumping capacity. The porous sintering wicking core is arranged at the evaporation section and can make condensed fluid smoothly flow back to the evaporation section to prevent the evaporation section from drying out. Moreover, the liquidity of the axial grooves is high, and the fluid backflow resistance is small. The anti-gravity capacity improved high-temperature heat pipe structure has high fluid permeability, is used as a wicking structure, extends at the condensation section and the heat insulation section and can ensure that the condensed fluid has small flow resistance in the flowing process. The porous sintering wicking core and the axial grooves are used in seriesand can make the condensed fluid flow back to the evaporation section smoothly. The high-temperature heat pipe structure has the advantages of being simple in structure and good in stability and reliability.

Description

technical field [0001] The invention relates to a high-efficiency heat transfer and thermal protection heat transfer element, in particular to a high-performance heat transfer device capable of operating against gravity in a gravity environment. Background technique [0002] As an efficient heat transfer element, heat pipe has been widely concerned. With the maturity and development of heat pipe technology, the application range of heat pipes has gradually expanded from the current traditional industrial fields such as machinery, electronics, and energy to nuclear engineering fields, such as space nuclear power supply, nuclear waste cooling, and reactor accident waste heat discharge. In the field of nuclear engineering, heat pipes have a high operating temperature and require a large amount of heat transfer. The medium and low temperature heat pipes widely used in the market cannot meet the heat transfer requirements, while high-temperature heat pipes using liquid metal as a...

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a high-temperature heat pipe structure with enhanced anti-gravity capability to overcome the defects of poor anti-gravity capability, poor stability and reliability of existing heat pipes

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