Ground-source cooling device applicable to solar power generating system

Abstract

The invention provides a ground-source cooling device applicable to a solar power generating system. The ground-source cooling device applicable to the solar power generating system comprises a circulating medium and an underground circulating cooling system, wherein the underground circulating cooling system is arranged under the ground surface, absorbs heat brought by the circulating medium through underground soil and releases the heat to environment through the ground surface, thereby achieving an aim of reducing the temperature of the circulating medium. The ground-source cooling device applicable to the solar power generating system takes advantages of the land area occupied by the solar power generating system to the maximum extent, has the characteristics of low construction cost and simple and reliable operation, and overcomes limitation that a turbine cooling system in a solar photothermal power generating technology can only adopt an air cooling technology within a special area.

Description

technical field [0001] The invention relates to a ground source cooling device, in particular to a ground source cooling device for a solar power generation system. Background technique [0002] The earth's surface receives solar radiation all year round, the total amount is about 2.6X1024J, about 50% of which is absorbed by the earth, half of the energy is radiated out in the form of long waves, and the rest becomes the driving force for water circulation, air circulation, and plant growth, making the surface of the earth usually at 15 ℃ or so. According to the changing characteristics of temperature, the crust of the earth's surface can be divided into three zones, namely: variable temperature zone, constant temperature zone and temperature increasing zone; variable temperature zone, due to the influence of solar radiation, its temperature has diurnal, annual , century or even longer periodical changes, its thickness is generally 15-20m; the range of temperature change in...

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Problems solved by technology

[0006] Therefore, it is of great significance to develop a technology that uses ground source heat pumps to release heat to the surface, and then slowly release heat to the environment to achieve low cost and high efficiency to release excess heat generated in solar CSP power generation systems. This technology is of great significance to overcome air cooling. The disadvantages of high CSP construction cost, unstable operation, inconvenient maintenance and large loss brought by technology

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