Point-line focusing combined solar thermal power generation system and method

A solar thermal power generation and line focusing technology, which is applied in the fields of solar thermal power generation, mechanical power generation with solar energy, heat storage equipment, etc. Deterioration of heat transfer and other problems, to achieve the effect of reducing heat transfer oil pollution, improving efficiency, and convenient operation and maintenance

Pending Publication Date: 2021-09-28
HUANENG CLEAN ENERGY RES INST
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Problems solved by technology

The tower type adopts hydraulic fluid, which is difficult to control under the large heat load and large heat load change rate of the tower heat absorber, resulting in the deterioration of heat transfer in some areas of the heat absorbing gas, and problems such as tube explosion in molten salt
In the low-temperature section, molten salt is used as the heat-collecting m

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  • Point-line focusing combined solar thermal power generation system and method

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[0024] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings and embodiments. Apparently, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0025] see figure 1 , a point-line focusing combined solar thermal power generation system, the low-temperature heat collecting section uses the characteristics of low temperature and high mirror field efficiency of line focusing to replace the preheater, and the high-temperature section adopts the characteristics of point focusing at high temperature and high thermoelectric efficiency, reducing The height of the point-focused heat sink improves the efficiency of the mirror field. The inventi...

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Abstract

The invention discloses a point-line focusing combined solar thermal power generation system and method. A low-temperature heat collection section utilizes the characteristics of low temperature and high mirror field efficiency of line focusing to replace a preheater, a high-temperature section adopts the characteristics of high temperature and high thermoelectric efficiency of point focusing, the height of a point focusing heat absorber is reduced, and the mirror field efficiency is improved. The point-line focusing combined solar thermal power generation system is high in integration efficiency, small in loss and low in cost.

Description

technical field [0001] The invention belongs to the field of new energy power generation, and in particular relates to a point-line focusing combined solar thermal power generation system and method. Background technique [0002] In a high-proportion renewable energy power generation system, it is necessary to build a new type of power system or power supply system to support the realization of the dual-carbon goal. Solar thermal power generation has the function of large-scale and long-term heat storage and energy storage, and can be used as a base-load power supply or a peak-shaving power supply , to overcome the disadvantages of renewable energy generation volatility, gaps, discontinuities, etc., improve the stability of the power system, and provide a path to achieve double-carbon goals, save large-scale wind power, and photovoltaic energy storage peak regulation. [0003] At present, in the combined solar thermal power generation system, the trough type generally adopts...

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Application Information

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IPC IPC(8): F03G6/06F01K11/02F01K13/00F28D20/00
CPCF03G6/06F01K11/02F01K13/00F01K13/006F28D20/0034F28D2020/0047Y02E60/14Y02E70/30Y02E10/46
Inventor 许世森郑建涛徐越
Owner HUANENG CLEAN ENERGY RES INST
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