Tower type solar thermal power generation system for heat absorber of vacuum heat absorption pipes

Abstract

The invention discloses a tower type solar thermal power generation system for a heat absorber of vacuum heat absorption pipes, which is characterized in that water / steam is taken a heat transfer fluid, and fusion salt is taken as a heat storage medium. The tower type solar thermal power generation system comprises a heliostat (1), a support tower (2), a heat absorber (3), a steam turbine (4), a generator (5), a deaerator (6), a condenser (7), a water feed pump (8), a high-temperature fusion salt storage tank (9), a low-temperature fusion salt storage tank (10), a water / steam-fusion salt heat exchanger (11), a fusion salt steam generator (12) and a control valve (13). The heat absorber (3) is formed by connecting the vacuum heat absorption pipes (18) in series and in parallel. According to the invention, the heliostat is arranged in a fan-shaped manner, a rectangular manner or a circumferential manner, the high-temperature and high-pressure overheating steam is obtained, and the solar thermal power generation system is suitable for a large installed capacity tower type solar thermal power generation station.

Description

technical field [0001] The invention relates to a tower type solar thermal power generation system, in particular to a tower type solar thermal power generation system using a vacuum heat absorbing tube as a heat absorber. Background technique [0002] Solar energy is an inexhaustible renewable energy source. Today, as fossil fuels are decreasing year by year and the international energy situation is becoming increasingly severe, the development and utilization of solar energy is one of the important ways to realize the diversification of energy supply and ensure energy security. The basic principle of the tower-type solar thermal power generation device is to use many heliostats to reflect solar radiation to the solar receiver placed on the tower, and generate superheated steam or high-temperature air with the help of heating medium to drive the generator set to generate electricity. The high temperature solar heat absorber is the core component of the tower thermal power g...

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies of the existing water / steam heat absorbers, such as low thermal efficiency, high requirements on the precision of the concentrating system, and poor safety, and propose a tower-type solar thermal power generation system with a vacuum heat absorbing tube as the heat absorber

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