A Solar Free Piston Stirling Power Generation System with Heat Storage Disc

Abstract

The invention relates to a field of solar energy photo-thermal power generation and especially relates to a disc-type solar energy free piston Stirling power generation system having thermal storage function. The system includes a solar energy heat collection system. The solar energy heat collection system includes light condensation discs, a disc frame, a truss, a heat absorbing cavity and a rotation mechanism. The light condensation discs are mounted on the disc frame in rows. The disc frame is mounted on the truss. The rotation mechanism drives the truss to generate single-axis horizontal rotation. The disc frame can also do single-axis rotation. The heat absorbing cavity is disposed at the focal point of the light condensation discs and keeps static. The system is simple in structure and low in maintenance cost. The system can work stably in an uninterrupted manner for day and night. Problems such as complicated structure, maintenance difficulty and power generation instability of the prior disc-type solar energy photo-thermal power generation technology are solved.

Description

technical field [0001] The invention relates to the field of solar photothermal power generation, in particular to a disc-type solar free piston Stirling power generation system with heat storage. Background technique [0002] Energy depletion and environmental pollution have always been two major problems restricting human development. Solar thermal power generation technology is a green energy technology that uses an external combustion heat engine to directly or indirectly convert heat energy into electrical energy. It is one of the important technical paths to effectively solve the above thorny problems. [0003] According to the classification of heat collection methods, solar thermal power generation technology is mainly divided into three types: tower type, trough type and dish type. The trough technology is currently the most mature and widely used solar thermal power generation method, but its light concentration efficiency is low, and the heat transfer pipe is lon...

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Problems solved by technology

[0006] Aiming at the disadvantages of the current mainstream dish-type solar Stirling power generation system, such as strict requirements on collector control accuracy, difficulty in heat storage, and high maintenance costs of mechanical Stirling generators, the invention proposes a dish-type solar generator with heat storage. Solar Free Piston Stirling Power Generation System

The system uses the heat transfer fluid in the fixed heat-absorbing chamber to absorb the heat of the collector, and forms a set of cycle power generation circuit composed of generator, heat storage device and supplementary combustion device through the circulation system, which solves the problem of the current system Difficulty in installation and maintenance of medium-sized generators and difficulty in realizing functions such as heat storage and supplementary combustion

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