Heliostat mirror field used for tower solar thermal power plant

A tower-type solar energy and heliostat technology, which is applied in the field of heliostat mirror fields, can solve the problems of complex mirror fields, inappropriateness, inconvenient construction and maintenance, etc., to ensure safe operation, reduce total costs, and improve land utilization. Effect
CN106524529AActive Publication Date: 2017-03-22ZHEJIANG SUPCON SOLAR TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
ZHEJIANG SUPCON SOLAR TECHNOLOGY CO LTD
Publication Date
2017-03-22

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Abstract

The invention discloses a heliostat mirror field used for a tower solar thermal power plant. The heliostat mirror field comprises a near-tower area and a far-tower area. The density of heliostats in the near-tower area is larger than that of heliostats in the far-tower area. The near-tower area comprises at least one near-tower subarea. The far-tower area comprises at least one far-tower subarea. The arrangement mode of the heliostats in each near-tower subarea is any one of the linear fixed mirror line space staggered arrangement mode, the linear fixed mirror line space non-staggered arrangement mode and the annular variable mirror line space non-staggered arrangement mode. The arrangement mode of the heliostats in each far-tower subarea is any one of the linear variable mirror line space staggered arrangement mode and the annular variable mirror line space staggered arrangement mode. Compared with the prior art, when the scale of a power station is large, the reflection efficiency of a solar mirror field is effectively improved, the arrangement rules are simple and clear, and construction and maintenance are easy.
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Description

technical field

[0001] The invention belongs to the field of solar thermal power generation, in particular to a heliostat mirror field used in a tower type solar thermal power plant. Background technique

[0002] The tower solar thermal power generation system is a solar mirror field composed of a series of heliostats with the function of automatically tracking the sun's trajectory, which concentrates and reflects sunlight to a heat absorber installed at a certain height, and heats the heat flowing through the heat absorber. The working fluid converts light energy into heat energy, thereby directly or indirectly generating high-temperature steam to drive a steam turbine to generate electricity.

[0003] In the solar mirror field, the layout of heliostats directly affects the photoelectric efficiency of the tower solar thermal power generation system. At the same time, the total investment cost of the heliostat accounts for 40%-50% of the total investment cost of the power s...

Claims

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