Multi-ring connected Stirling reversible heat engine

A technology of heat engine and heat, which is applied in the direction of hot gas variable displacement engine devices, mechanical equipment, machines/engines, etc., can solve the problems of large pressure fluctuations and large changes in the volume of the working chamber, and achieve strong heat dissipation, small overall volume, Solve the effect of heat dissipation

Inactive Publication Date: 2012-10-03
孔令斌
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reason is that the volume of the working chamber connected by the double ring changes greatly, and the pressure fluctuation also increases accordingly.

Method used

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  • Multi-ring connected Stirling reversible heat engine
  • Multi-ring connected Stirling reversible heat engine
  • Multi-ring connected Stirling reversible heat engine

Examples

Experimental program
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Effect test

Embodiment Construction

[0037] This embodiment is a Stirling generator with six working chambers and double ring connection for solar thermal power generation. The temperature of the heat storage medium in the existing solar heat storage technology can reach above 400°C. Take 400°C (673.15K) as the heat source temperature to design a generator with an output power of 300KW.

[0038]The main structural parameters are: cylinder diameter 200mm, stroke 120mm, distribution circle diameter 600mm, flow volume 10L, orientation block 100mm; heat engine diameter 1000mm, heat engine length 950mm excluding regenerator, control system and generator.

[0039] The set working parameters are: maximum working pressure 9MPa, heat engine efficiency 0.25, heat source temperature 673.15K, cold source temperature 333.15K, speed 900 rpm.

[0040] The thermodynamic calculation result of a working chamber is: the output electric power Power is 52.47KW, the heat absorption power P h 209.9KW, cooling power P C It is 157.4KW...

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Abstract

The invention relates to a multi-ring connected Stirling reversible heat engine. Cylinders at the heat inflow end of the engine are communicated with cylinders at the heat outflow end of the engine, which correspond to piston groups arranged at intervals through heaters, heat exchange regenerators and radiators to form working cavities; the working cavities and the piston groups are connected alternately to form a plurality of closed connecting rings; the connecting directions of all the closed connecting rings are consistent; two working cavities with the phase difference pi are respectively communicated with two heat exchange channels of the same heat exchange regenerator; the whole engine is provided with at least two closed connecting rings; and each closed connecting ring is formed by connecting at least three piston groups and at least three working cavities alternately. By combining the heat exchange regenerators with the high-efficiency radiators, the output power of a single working cavity is increased; the inherent advantages of simple structure, high efficiency, low noise and the like of the Stirling heat engine are fully exerted; and manufacturing cost and using cost are lower than those of an internal combustion engine, a steam turbine and a gas turbine.

Description

Technical field [0001] The invention relates to a Stirling heat engine, in particular to a multi-ring connection type Stirling reversible heat engine. Background technique [0002] In 1995, the International Stirling Engine Conference held in Tokyo, Japan predicted that the 21st century would be the century of Stirling engines! There has been an upsurge in the study of Stirling heat engines all over the world, and the technology of Stirling heat engines is on the eve of a major breakthrough. [0003] In June 2011, the Stirling reversible heat engine obtained the Chinese invention patent, marking the emergence of a new type of Stirling heat engine. However, there are still many technical issues that need to be resolved. [0004] Each constant volume process and each constant temperature process of the four-cavity Stirling reversible heat engine occupy a phase angle of π / 2. This coincidence gives people the impression that the four-cavity Stirling reversible heat engine is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02G1/043F02G1/053F02G1/045
Inventor 孔令斌
Owner 孔令斌
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