Open Stirling thermoelectric conversion device with opposed pistons

Abstract

The invention provides an opposed piston open type Stirling thermoelectric conversion device, and the problems that an existing thermoelectric conversion device is complex in structure, large in weight and high in cost are mainly solved. The opposed piston open type Stirling thermoelectric conversion device comprises a compression mechanism (1), an expansion mechanism (2), a piston crank-link mechanism (3), a heat collector cavity (4), an upper supporting body (5), a rotation power generator (6) and a lower supporting body (7). The compression mechanism is fixed to the upper left end of the heat collector cavity. The expansion mechanism is fixed to the upper right end of the heat collector cavity. The heat collector cavity is fixed to the upper end of the rotation power generator through the upper supporting body. The piston crank-link mechanism is fixed to a rotation shaft of the rotation power generator. The lower end of the rotation power generator is fixed to the lower supporting body. After working media compressed in a compression cavity enter the heat collector cavity and are preheated, the working media enter an expansion cavity to expand and do work, an expansion piston ismade to do the linear movement, the rotation shaft of the rotation power generator is driven to rotate, and thermoelectric conversion is achieved. The opposed piston open type Stirling thermoelectricconversion device is simple in structure, small in weight and capable of being used in a paraboloid disk-shaped light gathering solar system.

Description

technical field [0001] The invention belongs to the technical field of energy, and relates to a thermoelectric conversion device, which can be used in a dish-shaped concentrated solar energy thermoelectric conversion system. Background technique [0002] With the rapid development of science and technology, people's dependence on electric energy is also increasing day by day. The shortage of traditional energy and the environmental pollution caused by its use have prompted various countries to explore and develop some real clean energy technologies. For the current energy situation, solar energy is recognized as one of the important energy sources because of its infinity, universality and cleanliness, and its development and utilization have become a hot research object today. [0003] Existing CSP application systems in foreign countries, including parabolic trough type, parabolic dish type, reflect array tower type, etc., have almost the highest energy conversion efficien...

AI Technical Summary

Problems solved by technology

Although all the key components in the system can be localized, but because they have not been applied in commercial power stations, the product quality and service life still lack long-term verification

There is still a lack of experience in integrated design and operation of commercial power plants in China

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