High-temperature thermal insulation protection structure for tower type photovoltaic power station heat absorber

Abstract

The invention discloses a high-temperature thermal insulation protection structure for a tower type photovoltaic power station heat absorber. The high-temperature thermal insulation protection structure comprises a supporting framework, an inner tight sealing heat preservation layer and an outer protection layer, wherein the inner tight sealing heat preservation layer is arranged on the inner sideof the supporting framework, and the outer protection layer is arranged on the outer side of the supporting framework. An air layer is arranged between the inner tight sealing heat preservation layerand the outer protection layer. The high-temperature thermal-insulation protection structure for the tower-type photovoltaic power station heat absorber is optimized in design. Because the heat insulation protection function and heat preservation function of the heat absorber are separated, on the premise of ensuring the heat efficiency of the heat absorber, through the optimized structural design, high-cost protection materials are prevented from being selected, and the cost is reduced. A reasonable ventilation opening is formed in the structure, so that requirements for the environment temperature and ventilation of the heat absorber in the extreme seasons of winter and summer are met, and the operation safety and reliability of a system and equipment are ensured.

Description

technical field [0001] The present invention relates to the technical field of tower-type photothermal power plants, and more specifically, relates to a high-temperature heat insulation protection structure for a heat absorber of a tower-type photothermal power station. Background technique [0002] For the tower solar thermal power station, the main function of the heat absorber is to convert the solar energy tracked, focused and reflected by the mirror field into heat energy that can be used efficiently, and provide heat source for the turbogenerator set at the back end. The internal supporting steel structure of the heat absorber is fixed on the platform of the heat absorbing tower, and the heating tube panel is suspended and fixed on the outside of the supporting steel structure to absorb the direct radiation of sunlight reflected by the mirror field, but for the upper and lower headers of the heating tube panel and non- The supporting steel structure part of the effecti...

AI Technical Summary

Problems solved by technology

[0005] In foreign commercialized photothermal power plants, the heat insulation protection boards often use nano-plates or hard ceramic plates with exclusive patented technology. Although the performance is superior, the cost is too high, accounting for about 10% of the overall investment cost of the heat sink. One tenth, the cost and cycle of equipment maintenance and replacement in the later period are difficult to meet the project needs

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