Heat conduction equipment applying semiconductor principle and uses thereof

Abstract

The invention relates to a heat conductive apparatus applying semi-conductor principle and its use thereof wherein the apparatus comprises a housing, carrier and heat conducting working medium arranged in the hermetic vacuum housing, the invention can be used in the foundation construction of railroad, highway and other linear project and on the objects needing heat preservation. By using the characteristic of low thermal factor at positive temperature and high thermal factor at negative temperature of the system, the regulation between the temperature of the environment and the temperature of the protected objects can be realized.

Description

technical field [0001] The invention relates to a heat conduction device and its application, in particular to a heat conduction device utilizing the semiconductor principle which can insulate heat at a positive temperature and conduct heat at a negative temperature, and its application. Background technique [0002] With the development of national production and regional economy, our country has been continuously constructing engineering buildings such as railways, highways, oil pipelines, and optical cables in permafrost areas. Due to the influence of artificial engineering measures, the surface heat transfer conditions have been changed, especially in the high solar radiation areas of the Qinghai-Tibet Plateau. Due to artificial engineering, the heat-absorbing surface and heat-absorbing heat of engineering buildings have been greatly increased after implementation, making the lower part of the foundation of various engineering measures The overall heat balance of the per...

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Problems solved by technology

Although this thermal pile has the function of heat conduction, it does not have the function of heat insulation. When the ambient temperature is higher than the temperature of its lower part, the thawing effect of the ambient high temperature on the frozen soil cannot be prevented; and its heat dissipation is only point heat dissipation, which affects the area Large projects are expensive

Therefore, under the unique actual conditions of permafrost regions on the Qinghai-Tibet Plateau in my country, that is, the annual average ground temperature of permafrost is close to zero in many permafrost regions (called high-temperature permafrost). It is predicted that the climate of the Qinghai-Tibet Plateau will warm by 2.3°C in 50 years, and the high-temperature permafrost area will show a trend of rapid increase, resulting in the fact that these engineering measures are either not effective, or the cost is too high to be used in large quantities in linear engineering, or It only cools at the point, but it is difficult to meet the actual requirements of the project for cooling on the line and on the surface

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