A tower type solar power station receiver structure and receiving method

Abstract

The invention relates to a tower solar power station receiver structure and a receiving method. The area of a mirror field of a tower solar power station is huge, massive heliostats exist, the energy density on a receiver is very high, and the situations of overheating burnout and excessive stress are likely to happen once heat cannot be brought away in time in an area with the maximum concentration ratio. The tower solar power station receiver structure comprises a converging tank and a plurality of heat collecting pipes. The two ends of each heat collecting pipe are connected to the converging tank. A cylinder structure is defined by the heat collecting pipes. A high-concentration-ratio area exists on the heat collecting pipes of the cylinder structure. The tower solar power station receiver structure is characterized in that the heat collecting pipes located in the high-concentration-ratio area are inwards-concave heat collecting pipes of an inwards-concaved structure. Large structure adjustment is made on the area with the maximum concentration ratio, the heat absorbing area of the area is increased, the radiation energy is scattered, and the concentration ratio on a pipeline is reduced; and temperature distribution of the whole receiver is more reasonable through radiation energy leaking into the other side of the receiver, and damage caused by the too high temperature or uneven stress is reduced.

Description

technical field [0001] The invention relates to a tower-type solar power station receiver structure and a receiving method, which belong to the technical field of solar thermal power generation applications, and are specifically used for the heat collection function of a tower-type solar power station. Background technique [0002] Solar thermal power generation refers to the use of large-scale heliostat arrays to reflect sunlight, gather it on the receiver on the top of the tower, and take it away through the heat transfer medium circulation, and generate steam by the heat exchange device, combined with the traditional steam turbine generator process, so as to achieve the purpose of power generation. [0003] At present, many large-scale commercial tower solar power plants in the world use omnidirectional receivers, typical projects such as Solar Two, Gemasolar, and Crescent Dunes. The advantage of this kind of receiver is that it can receive energy from all directions, an...

AI Technical Summary

Problems solved by technology

[0005] In view of the uneven radiation and temperature of the receiver of the tower solar power station, which is prone to overheating and burning and excessive stress, a tower solar power station receiver structure and receiving method are provided

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