Self-adapting solar energy heat collection molten salt receiver system

Abstract

The present invention provides a solar energy heat collecting molten salt receiver system and method having adaptivity. The fault-tolerance molten salt pump transmitting system inputs cold molten salt in each receiver module to absorbing heat, heat molten salt after absorbing inputs in heat molten buffer tank via outlet on the top of the each receiver mould, then sending in turbine installation via the lower vessel to recycling potential energy of the heat molten salt, a flow control valve mounted on the lower vessel controls the molten salt quantity in the molten salt buffer tank and kept in a given range, each receiver in the system has a control system individual adjusting molten salt flow quantity according to temperature of the output molten salt to ensure the balance of each receiver mould output molten salt temperature and keeping with temperature set by system. The invention not only ensures optimalizing working efficiency of the molten salt receiver system and enhances working efficiency of the whole electric power plant, but also reduces cost of the system investment operation.

Description

technical field [0001] The invention relates to a solar heat collection molten salt receiver system and method, in particular to an adaptive tower type solar heat collection molten salt receiver system and method, belonging to the technical field of solar energy applications. Background technique [0002] Mankind's desire to gradually reduce and finally get rid of dependence on fossil energy has stimulated the global market to explore clean and renewable energy power generation, and solar energy has undoubtedly become a feasible option based on its clean power generation and potential unlimited supply. [0003] The molten salt receiver system has been used in solar thermal conversion systems, and one of the most common ways is to apply it to tower solar thermal power generation, which is described in US Patent No. US 4407269, US 5417052 and US 6701711 are described in detail. [0004] In the tower-type solar thermal power generation system, the heliostats in the heliostat f...

AI Technical Summary

Problems solved by technology

This difference in the amount of sunlight received will inevitably lead to differences in the heat collection of each receiver module. If the existing technology is used to adjust the flow of molten salt in each receiver module through a fixed flow balance control connection device, it will inevitably lead to a difference in each receiver module. The temperature of the molten salt output by the detector module varies

It can be seen that it is inappropriate to adopt a fixed flow distribution control for the molten salt input into each receiver module, and the fixed flow balance control connection device cannot effectively adapt to changes in working conditions and cannot realize the improvement of the working efficiency of the central receiver. Optimum, which in turn is not conducive to improving the efficiency of power plants

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