Light-focusing solar generator and solar absorber thereof

Abstract

The invention relates to the technical field of solar electrical energy generation, and particularly relates to a light-focusing solar generator and a solar absorber thereof. The solar absorber comprises a tank, a reflecting cone and a heat-absorbing tube assembly, wherein the tank comprises a cylindrical cavity; an opening for forming a light path is formed in the top of the tank; the reflecting cone is arranged at the bottom of the cylindrical cavity; the conical wall surface of the reflecting cone faces the opening; the heat-absorbing tube assembly is fixedly arranged in the cylindrical cavity, surrounds the reflecting cone and comprises a plurality of single-pass heat-absorbing tubes; each single-pass heat-absorbing tube comprises a working medium inflowing header for flow and heat transfer of a working medium, a working medium outflowing header and heat transfer thin tubes; the outer wall surface of the tank is coated with a low emissivity material layer; the inner wall surface of the tank and the conical wall surface of the reflecting cone are coated with high reflectivity material layers; and the wall surfaces of the single-pass heat-absorbing tubes are coated with high absorptivity material layers. The solar absorber is relatively simple in structure, relatively low in cost, high in energy conversion rate and convenient for large-area popularization and application.

Description

technical field [0001] The invention relates to the technical field of solar power generation, in particular to a concentrating solar power generator and a solar absorber thereof. Background technique [0002] In the prior art, how to efficiently receive and convert the high-energy-density solar energy captured and reflected by the concentrator into the internal energy of the thermal working medium is a technical problem that needs to be solved in the high-temperature heat absorption technology of solar energy. The solar absorber is a key component in the high temperature utilization of solar energy, and its low thermal energy conversion efficiency is the fundamental problem hindering the high temperature utilization of solar energy at present. Contents of the invention [0003] The purpose of the invention is to avoid the above-mentioned deficiencies in the prior art and provide a solar absorber for concentrating solar generators with low cost and high conversion efficien...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the invention is to avoid the above-mentioned deficiencies in the prior art and provide a solar absorber for concentrating solar generators with low cost and high conversion efficiency, so as to solve the existing solar energy absorption for concentrating solar generators The energy conversion efficiency of the device is low, the cost is high, and the problem that it cannot be popularized and used in a large area

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