Solar energy gasification and power generation hybrid system

Abstract

Disclosed is a solar energy gasification and power generation hybrid system. The hybrid system comprises: heliostat fields (1), a solar tower, carbon-containing material feeder (2), gas pre-heaters (3) for gasification, a solar energy gasifier (4), a heat absorber (5), a superheater (7), combustion gas incinerator (8), blower fans (9), a water-feeding pump (10), a gas storage tank (11), a gas storage tank (12) for gasification, a water supply pre-heater (13), a turbo generator, a cooling tower, and a deoxygenator. The components are connected through pipelines; the pipelines are provided with valves (6); the solar energy gasifier (4) and the heat absorber (5) are installed at different height of the solar tower; and the heliostat fields (1a, 1b) are projected to the solar energy gasifier (4) and the heat absorber (5), separately. The number of heliostats in the heliostat fields (1a, 1b) can be automatically adjusted therebetween according to different operation modes. The hybrid system can be switched among a plurality of operation modes according to a direct solar radiation value. The hybrid system transforms solar energy to chemical energy for storage, is small in heat loss and fast in heat release, and is clean with less pollution.

Description

technical field [0001] The invention relates to a solar energy gasification and power generation hybrid system, in particular to a solar gasification and power generation hybrid system which utilizes solar energy to gasify carbonaceous materials for chemical energy storage and combines solar tower power stations. Background technique [0002] Solar thermal power generation technology has the same power generation unit as conventional thermal power technology, so it is very easy to be accepted by the existing power generation and grid industries. However, the inherent intermittency and instability of solar energy will still cause instability in the power output of solar thermal power generation technology. In order to solve the problem of instability, conventional technical means mainly include: 1) large-scale heat storage; 2) complementary power generation with fossil fuels or biomass. At present, the most commonly used method in large-scale heat storage technology is molte...

AI Technical Summary

Problems solved by technology

The energy required for biomass gasification still needs to be provided by fossil fuel combustion, therefore, a large amount of CO is still emitted. 2 and other pollutants, weakening the environmental benefits of solar power plants

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