Fuse salt jet impinging heat dump

Abstract

The invention relates to a fuse salt jet impinging heat dump which comprises an absorber (1), a high-temperature steel plate (2), inflow ports (3 and 3'), an outlet (4) and a nozzle (16), wherein the fuse salt jet impinging heat dump (8) is a of cylinder shape, and the front of the absorber (1) faces converged sunlight; the high-temperature steel plate (2) is positioned at the interior of the fuse salt jet impinging heat dump (8) and fixed on the shell of the fuse salt jet impinging heat dump (8) in welding manner, and the high-temperature steel plate (2) is embedded with the nozzle (16); an outlet of the nozzle (16) faces the back of the absorber (1), the inlet is connected with the inflow ports (3 and 3') arranged on the bottom of the fuse salt jet impinging heat dump (8); fuse salt is delivered to the inflow ports (3 and 3') through pump exhausting to flow to the nozzle (16) through a pipeline, thereby spraying to absorber (1), and the absorber (1) is subjected to jet impinging cooling so as to take away the heat; and the heated fuse salt flows out from the outlet (4) of bottom of a gap positioned between the absorber (1) and high-temperature steel plate (2).

Description

technical field [0001] The invention relates to a molten salt heat absorber for solar tower thermal power generation. Background technique [0002] Solar thermal power generation has attracted much attention in the field of new energy due to its unlimited resources and no pollution. Among them, tower-type solar thermal power generation technology has attracted a large number of researchers to conduct research because of its huge commercial prospects. The heat absorber is a key component of solar tower thermal power generation. The molten salt heat absorber has attracted the attention of researchers due to the many advantages of the molten salt working fluid, and has been used in Solar Two and Solar Tres power stations. [0003] At present, there are cavity type, column type and other types of heat absorbers that use fluid as the heat transfer medium. U.S. Patent US5862800 describes a cylindrical heat absorber using molten salt as a working medium. The heat absorbing surfac...

AI Technical Summary

Problems solved by technology

[0006] 1. To overcome the problems of ablation of the heat-absorbing surface and thermal stress damage caused by the uneven heat flux density of the heat-absorbing surface of the traditional heat-absorbing pipe;

[0007] 2. To overcome the problem of low convective heat transfer coefficient of the pipeline fluid medium in the heat absorber;

[0008] 3. Solve the problem of antifreeze and thawing of molten salt in pipelines in traditional molten salt heat absorbers

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