Self-purification structure and method for solar thermal power station with molten salt as medium

Abstract

The invention relates to a self purification structure and method for a solar energy thermal power plant adopting fused salt as a medium, achieves the self purification effect on fused salt, and overcomes the problems that the working condition is unstable and the corrosivity is increased due to impurities. The self purification structure is characterized in that a lug chamber tank is located beside a salt storage tank; a lug chamber tank upper connecting pipeline is communicated with the upper part of the lug chamber tank and the upper part of the salt storage tank; a lug chamber tank upper connecting valve is mounted on the lug chamber tank upper connecting pipeline; a lug chamber tank lower connecting pipeline is communicated with the lower part of the lug chamber tank and the lower part of the salt storage tank; a lug chamber tank lower connecting valve is mounted on the lug chamber tank lower connecting pipeline; a lug chamber tank emptying pipeline is communicated with a lug chamber tank emptying port; a lug chamber tank blowoff valve is mounted on the lug chamber tank emptying pipeline; a sediment collection tank is located below the salt storage tank; the entire sediment collection tank is lower than the horizontal plane where the bottom of the salt storage tank is located; a collection tank connecting pipeline is communicated with the bottom of the salt storage tank and the upper part of the sediment collection tank; a collection tank junction valve is mounted on the collection tank connecting pipeline; a collection tank emptying pipeline is communicated with the bottom of the sediment collection tank; and a collection tank blowoff valve is mounted on the collection tank emptying pipeline.

Description

technical field [0001] The invention relates to a self-purifying structure and method for a solar thermal power station using molten salt as a medium. Background technique [0002] Solar thermal power generation refers to the use of a large-scale array of parabolic or dish-shaped mirrors to collect solar thermal energy, increase the energy density by concentrating light, increase the heating temperature, convert the absorbed solar energy into thermal energy, and then transfer the thermal energy to the heat-conducting medium , is taken away by the heat-conducting medium, passes through the heat storage link, and generates steam from the heat exchange device. Combined with the traditional turbogenerator technology, it is finally output in the form of electric energy, so as to achieve the purpose of power generation. The solar thermal power generation system is mainly composed of a concentrating subsystem, a heat collecting subsystem, a thermal storage subsystem, and a power ge...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art, and provide a self-purification structure and method for a solar thermal power station with molten salt as the medium, which can achieve the effect of self-purification of molten salt, thereby overcoming the Unstable working conditions and increased corrosion caused by impurities

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