Solar thermal power generation method and device

A technology of solar thermal power generation and solar heat concentration, which is applied in the field of solar thermal utilization, can solve problems such as high temperature and high solar concentration ratio, and achieve the effects of strong self-protection ability, safe operation, and flexible and convenient operation adjustment

Inactive Publication Date: 2015-09-09
NANJING RECLAIMER ENVIRONMENTAL TEKNIK
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Problems solved by technology

[0022] Therefore, how to solve the problems existing in the above-mentioned prior art, give full play to the advantages of high tower or dish solar energy concentration ratio and high temperature, and overcome the inherent shortcomings of using steam Rankine cycle in solar thermal power generation technology (if supporting corresponding water Treatment facilities, steam condensers and circulating cooling water systems, etc.), expanding the application scope of the external combustion micro gas turbine cycle, and establishing a new solar thermal power generation model with higher efficiency have become the difficulties of research in this field

Method used

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Embodiment 1

[0074] like figure 1 As shown, a schematic flow diagram of a solar thermal power generation method and device of the present invention.

[0075] A solar thermal power generation method, the method uses air as a circulating working medium, and after the air is pressurized by a top circulating compressor, it is sent to a cavity-type receiver of a solar heat concentrating device to absorb heat, and the generated high-temperature air drives a high-temperature air turbine. The top cycle generator generates electricity, thereby converting solar energy into electrical energy. The air discharged from the high-temperature air turbine is cooled by the regenerator and then discharged into the atmosphere; the compressed air after being pressurized by the bottom cycle compressor is sent to the regenerator. It absorbs the exhaust heat of the high-temperature air turbine, and the generated hot air drives the bottom-cycle air turbine, which drives the bottom-cycle generator to generate elect...

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Abstract

The invention relates to a solar thermal power generation method and device. The method adopts an operation mode of overlapping top Britten circulation and bottom Britten circulation, and adopts air as a circulation working medium. After the air is pressurized by a top circulation air compressor, the air is fed into a cavity type receiver of a solar heat collecting device for absorbing heat; and the air, with higher temperature, discharged by a high-temperature air turbine in the top Britten circulation is used as a heat source of the bottom Britten circulation, thereby to forming an overlapped solar thermal power generation system. The device can effectively improve the solar thermal power generation efficiency, is excellent in unit safety and economy, and is specifically suitable for water-deficient areas.

Description

technical field [0001] The invention relates to a solar thermal power generation method and device, specifically belonging to the technical field of solar thermal utilization. Background technique [0002] With the vigorous development of renewable energy utilization in the world, concentrated solar power (CSP) and photovoltaic solar power (PV) have developed rapidly. The use of solar photovoltaic power generation can only make use of light with a shorter wavelength, and the light with a longer wavelength is completely wasted, and the temperature of the battery increases, resulting in a decrease in the efficiency of the battery, while the use of solar thermal power generation can make full use of the entire wavelength Therefore, concentrating solar power (CSP) is gradually recognized, researched and valued by people. Compared with photovoltaic solar power (PV), concentrating solar power (CSP) has outstanding features such as large scale, high concentration, and high efficie...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F24J2/04F03G6/04F03G6/00
CPCY02E10/44Y02E10/46
Inventor 孟宁王海波魏然
Owner NANJING RECLAIMER ENVIRONMENTAL TEKNIK
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