SOLAR COLLECTOR Russian patent published in 2002 - IPC

FIELD: high-temperature solar power plants with concentrators of solar radiation, applicable in all branches of industry, where thermal power is needed. SUBSTANCE: the solar collector has a body with a translucent coating and a heat absorber located in its lower part, reflecting members in the form of mirror wedge- shaped prisms are installed between them row upon row. According to the invention, the heat absorber is made in the form of the upper transparent surface with prisms installed on it, and the lower wall, whose central part is provided with staggered hemispherical bulges engageable with the upper surface of the heat absorber and supporting it with its tops, and the edges of its lower wall are made in the form of concave semicylindrical surfaces for placement of tubs with low-boiling heat-transfer agent in them for absorbing the collector thermal power; the transparent surface of the heat absorber between the wedge-shaped prisms additionally fulfilling the function of concentrators is made convexo- concave, and the prisms proper are made thin-walled and hollow with concave lateral faces and a convexo-concave base point-engageable with the transparent surface of the heat absorber and its lower wall is filled with liquid with a high boiling point, forming shallow lenses together with the convexo-concave section of the heat absorber transparent surface, and the cavity between the collector translucent coating and the transparent surface of the heat absorber is filled with gas possessing high heat-insulating properties. EFFECT: enhanced temperatures of the heat-transfer agent without any use of Sun tracking systems. 6 dwg