Power generation system capable of realizing complementation between solar energy and biomass energy

Abstract

The invention discloses a power generation system capable of realizing complementation between solar energy and biomass energy. The power generation system comprises a slot type solar heat collection sub-system, a biomass after-burning sub-system and a power generation sub-system, wherein the slot type solar heat collection sub-system comprises a solar heat collection field, an oil-water heat exchanger and a heat conduction oil pump, and is used for receiving and gathering solar radiation energy; supplied water is heated up to a certain temperature or is heated until becoming steam by the oil-water heat exchanger; waste heat of heat conduction oil is used for replacing part or all high-pressure cylinder extract air of a steam turbine for heating the low-temperature supplied water; the biomass after-burning sub-system comprises a biomass boiler, a superheater, a reheater and an air pre-heater, and is used for generating high-temperature flue gas and heating products at an outlet of the oil-water heat exchanger and steam at an outlet of a high-pressure cylinder into high-temperature and high-pressure steam; the power generation sub-system comprises the steam turbine and a generator set, and is used for converting received thermal energy into electric energy and outputting the electric energy. After the power generation system capable of realizing complementation between solar energy and biomass energy is adopted, the problem that a slot type solar single thermal power generation system is low in main steam parameter can be solved, the dosage of biomass is reduced, and the biomass resource collection, transportation and storage costs can be lowered.

Description

technical field [0001] The invention relates to the technical field of renewable energy, in particular to a power generation system in which solar energy and biomass energy are complementary, in particular to a power generation system in which biomass fuel supplementary combustion is used to improve power steam parameters. Background technique [0002] The transformation of the energy structure in the 21st century is imperative. Renewable energy will gradually replace fossil energy with its advantages of inexhaustibility, cleanliness and environmental protection. Among them, solar thermal power generation and biomass power generation are two important ways of utilizing renewable energy. , has received great attention from the international academic and industrial circles. [0003] Solar thermal power generation technology uses solar concentrating technology to convert solar radiation energy into heat energy, and then generates electricity through a thermal cycle. According ...

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Problems solved by technology

[0006] In view of this, the main purpose of the present invention is to provide a solar energy and biomass energy complementary power generation system to solve the problem of low main steam parameters of the trough solar single thermal power generation system

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