Trough solar heat transfer oil and molten salt mixed thermal power generation system

Abstract

The invention relates to a groove type solar heat conduction oil and fused salt mixed thermal power generation system. The system comprises a steam turbine generator set, a steam circulation system connected with the steam turbine generator set, a medium-and-high temperature heat conduction oil system and a high-temperature fused salt system, wherein the medium-and-high temperature heat conduction oil system and the high-temperature fused salt system are connected with the steam circulation system. The above groove type solar heat conduction oil and fused salt mixed thermal power generation system is formed by combining the medium-and-high temperature heat conduction oil system and the high-temperature fused salt system. The medium-and-high temperature heat conduction oil system conducts heat transferring through heat conduction oil so as to heat a preheater and a steam generator to produce saturated steam. The high-temperature fused salt system conducts heat transferring through fused salt so as to heat a superheater and a reheater to generate high-grade superheated steam to drive the steam turbine generator set. The groove type solar heat conduction oil and fused salt mixed thermal power generation system has the beneficial effects that the steam grade of a medium-and-high-temperature groove type solar power generation system is improved, the heat losses of a high-temperature groove type solar thermal power generation system are reduced, the thermal power generation efficiency of a groove type solar power generation system is improved, and the initial investment cost and the operation and maintenance cost of a groove type solar thermal power station are reduced.

Description

technical field [0001] The invention relates to the technical field of solar power generation, in particular to a trough-type solar heat transfer oil and molten salt mixed thermal power generation system. Background technique [0002] With the development of economy and progress of society, people put forward higher and higher requirements for energy, and finding new energy has become an urgent issue facing mankind. Solar energy is a new energy developed by human beings, which is mainly divided into solar photovoltaic power generation and solar thermal power generation. Among them, solar thermal power generation is to convert solar energy into thermal energy first, then convert thermal energy into mechanical energy, and then convert mechanical energy into electrical energy. At present, the trough solar thermal power generation system is one of the more common methods of solar thermal power generation. There are relatively mature commercial power stations in the United State...

AI Technical Summary

Problems solved by technology

[0006] 4. Is there a heat storage system (generally commercial power plants have heat storage systems, only a few do not have heat storage systems)

The disadvantage is that the heat loss of the heat collection circuit and the main pipe is relatively large, and the anti-condensation system is complicated

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