System for utilizing solar step developing heat

Abstract

The invention relates to a cascade-developed heat utilization system of solar energy, which adopts that: in a low temperature section, a complex parabolic condenser is matched with a normal temperature receiver and the normal temperature receiver is output to an intermediate temperature section; in the intermediate temperature section, a parabolic trench-typed condenser is matched with an intermediate temperature receiver which is output to a high temperature section through a gas-water separator; in the high temperature section, a disk-typed condenser is matched with a high-temperature receiver which is output to a steam turbine. The cascade-developed heat utilization system of solar energy of the invention solves the defects that disk type is too expensive in manufacturing, and the trench type incurs the conflict between the reliability and the efficiency at high temperature, and the like. The effects of the cascade-developed heat utilization system of solar energy of the invention lie in that: the low temperature section adopts the complex parabolic condenser, the intermediate temperature section adopts the parabolic trench-typed condenser and the high temperature section adopts the parabolic disk-typed condenser; the three heat collecting sections are connected in series and respective advantages thereof are utilized while respective defects thereof are avoided; the three heat collecting sections are led to be combined dynamically to produce synergistic effects.

Description

technical field [0001] The invention relates to a solar heat utilization system, in particular to a cascade-developed solar heat utilization system. Background technique [0002] Among the many ways of solar energy conversion and utilization, medium and high temperature solar thermal utilization is a very important technology, that is, using focused heat collection technology to generate high-temperature gas or steam that is sufficient to drive thermal machinery, and finally drive a generator to generate electricity, which is solar thermal power generation technology. [0003] Before the present invention, the technology types adopted for solar thermal power generation were mainly tower type, trough type and dish type. The tower type has the advantages of large power generation capacity and simple technical route, but there are also defects such as huge receiver, difficult manufacture, and large initial investment in the system. The trough and disc are still in the experim...

AI Technical Summary

Problems solved by technology

If you blindly pursue high temperature and high pressure, it will cause temperature difference stress on the receiver, which will inevitably sacrifice the reliability of the collector and its system

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