Light gathering device in parabolic trough solar thermal power generation system

Abstract

The invention discloses a light gathering device in a parabolic trough solar thermal power generation system. The light gathering device comprises a base, a turnover mechanism, a revolving mechanism and a rotating mechanism, the turnover mechanism, the revolving mechanism and the rotating mechanism are correspondingly arranged on the base from bottom to top, the turnover mechanism makes the revolving mechanism rotate in the vertical direction, the revolving mechanism makes the rotating mechanism revolve in the horizontal direction, a reflector is arranged on the rotating mechanism, and the rotating mechanism makes the reflector rotate in the longitudinal direction. The light gathering device is scientific and reasonable, safe and convenient in use, the rotation of the light gathering device in the three-dimensional space is achieved by the turnover mechanism, the revolving mechanism and the rotating mechanism, the better light tracing can be achieved with the rotation of sun, and thusthe light gathering effect is better.

Description

technical field [0001] The invention relates to the technical field of solar thermal power generation, in particular to a light concentrating device in a trough solar thermal power generation system. Background technique [0002] In the family of new energy and renewable energy, solar energy is the most eye-catching. Solar energy is a clean energy, which is especially important for environmental protection. The current solar thermal power generation can be divided into solar trough power generation, solar dish power generation and solar tower power generation according to the solar energy collection method. [0003] Among them, trough power generation is the earliest commercialized solar thermal power generation system. It adopts a large-area single-axis trough solar tracking lighting panel. By focusing the sunlight, it gathers the sunlight to the linear receiver installed on the focus of the parabolic reflector, and heats the heat transfer fluid flowing through the receive...

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Problems solved by technology

[0004] The trough solar thermal power generation system has a compact structure, and its solar heat radiation collection device occupies a smaller area than the tower and dish systems, and its power station is currently the highest in power and annual efficiency among all solar thermal power stations; currently the trough The existing problems of solar-type solar energy are mainly related to its tracking of the sun. The existing tracking generally uses a swing form such as a swing arm to realize the rotation of the trough-type concentrator. The swing form has low precision and poor tracking effect. However, if the trough-type , it requires a very large driving force

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