Particle heat absorber

Abstract

The invention relates to the technical field of heat absorption and heat storage, and particularly provides a particle heat absorber for photo-thermal power generation. The particle heat absorber comprises a feeding bin used for temporarily storing heat absorption particles to be heated, and a multi-stage plate type heat absorption channel allowing the particles to flow along a preset path under the action of gravity; and the multi-stage plate type heat absorption channel is composed of a plurality of plate type structures, and the flowing direction of the particles changes when the particles flow from one plate type structure to the next adjacent plate type structure. According to the particle heat absorber, the temperature of the heat absorption particles can be increased through a simple structure, and the function of converting solar energy into heat energy at the high temperature level is achieved.

Description

technical field [0001] The invention relates to the technical field of heat absorption and energy storage, in particular to a particle heat absorber for photothermal power generation. Background technique [0002] In a sense, the development of human beings is the development of energy utilization methods. The current energy consumption in the world is still dominated by non-renewable energy. Among them, the energy consumption of coal, oil and natural gas accounts for as high as 84.3%. The consumption of a large amount of fossil energy has a great impact on The earth's ecological environment has caused great damage. New energy, especially solar energy, has the advantages of huge total, clean and safe, which has attracted extensive attention of scientific researchers. [0003] Specifically, solar power generation technologies mainly include photovoltaic power generation, solar thermal power generation, and thermal wind power generation, among which solar thermal power generat...

AI Technical Summary

Problems solved by technology

At present, the typical types of particle heat absorbers in the world include free-falling particle heat absorbers, obstructed flow particle heat absorbers, centrifugal particle heat absorbers, quartz tube particle heat absorbers, and single inclined plate particle heat absorbers. etc. Although various particle heat absorbers have their own advantages and significance, there are still some problems, such as the free-falling type heat absorber has too fast particle flow rate and short heating time, which leads to insufficient single-pass heating; hinders flow type particle heat absorber. The obstructing structure of the heater itself is prone to wear and deformation at high temperature; the structure of the centrifugal particle heat absorber is relatively complicated and needs external power to drive; the quartz glass of the quartz tube particle heat absorber is fragile and easy to dirty; The particle layer at the end of the heater is too thick and it is difficult to match the concentrating conditions

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