Parabolic trough solar concentrating collector with collector separated from concentrator

Abstract

The invention discloses a parabolic trough type solar concentrating heat collector with a heat collector and an optical collector distributed in a separated way. The parabolic trough type solar concentrating heat collector comprises a rectangular space truss (1), a cantilever beam (2), a semicircular connecting frame (3), a reflecting mirror assembly (8), the heat collector (9) and a supporting truss (10), wherein the supporting truss (10) is arranged on the reflecting mirror assembly (8) in a crossing manner, the heat collector (9) is mounted on the supporting truss (10), and is positioned on the axis formed by the focuses of the reflecting mirror assembly (8), and since the position of the axis formed by the focuses of the reflecting mirror assembly (8) is unchanged always during automatic sun chasing, light rays reflected by the reflecting mirror assembly (8) are always collected on the heat collector (9) remaining stationary. According to the parabolic trough type solar concentrating heat collector provided by the invention, since the heat collector and the optical collector are distributed in a separated manner, under a condition that the heat collector is kept to be fixed, during system automatic sun chasing, the condenser can accurately reflect sunlight onto the heat collector always, and the solar concentrating heat collector is easy to install and debug, and is high in efficiency and low in cost.

Description

Technical field [0001] The invention relates to a trough-type solar thermal power generation system, in particular to a trough-type solar thermal power generation in which the solar collector can always accurately reflect sunlight to the collector when the collector is kept fixed. The system, specifically, is a parabolic trough solar concentrator that can reduce the difficulty of connecting the control system and the pipeline while ensuring the concentrator's concentrating accuracy, and improve the reliability of the system. Heater. Background technique [0002] The trough solar concentrator is an important component of the trough solar thermal power generation system. It consists of a parabolic trough reflector, a support structure, a heat collector and a driving device. Multiple concentrator units are assembled in series or in parallel to realize large-scale solar energy utilization. At present, the trough solar thermal power generation system is a relatively mature medium an...

AI Technical Summary

Problems solved by technology

However, there are still disadvantages such as high operating cost, low operating efficiency and reliability, and inconvenient installation and maintenance.

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