Clearance type sealing Stirling thermoelectric converter supported by adopting supporting flexible plate springs

A leaf spring, gap technology, applied in the field of gap seal Stirling thermoelectric converters, achieves great advantages, low friction loss and hysteresis loss, and meets the stiffness requirements.

Active Publication Date: 2013-01-30
中国航天科技集团公司第五研究院第五一0研究所
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  • Abstract
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  • Claims
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Problems solved by technology

This Stirling thermoelectric conversion technology, which replaces traditional mechanical seals and reduces friction loss, air leakage loss and wear, has not been studied in China, and is an innovative point of the present invention.

Method used

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  • Clearance type sealing Stirling thermoelectric converter supported by adopting supporting flexible plate springs

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Embodiment Construction

[0015] The present invention and its beneficial effects will be further described in detail with reference to the accompanying drawings.

[0016] like figure 1 As shown, the thermal cylinder 1 is located at the left end, the compression cylinder 10 is located at the middle, and the generator 12 is located at the right end, and the three are fixed together by flanges. The thermal cylinder 1, the heat exchanger 2, the expansion cylinder 4, and the expansion piston 3 are long cylinders, which are sequentially fitted together inwardly; the expansion piston 3 is installed on the expansion piston rod 9 located on the central axis of the thermal cylinder 1. There are two sets of supporting flexible plate springs 8 in the expansion piston 3, which are respectively placed at the two ends of the expansion piston rod 9; the outer diameter of the supporting flexible plate springs 8 is closely matched with the inner wall of the expansion piston 3, and its central hole is sleeved on the e...

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Abstract

The invention relates to a clearance type sealing Stirling thermoelectric converter supported by adopting plate springs. The clearance type sealing Stirling thermoelectric converter comprises a hot cylinder, a compression cylinder and a linear alternating current generator which are fixedly connected through a flange, wherein the interior of the hot cylinder is sequentially sleeved with a heat exchanger and an expansion cylinder towards the center, and an expansion piston is arranged in the expansion cylinder; the expansion piston is sleeved on an expansion piston rod; and an inner cavity of the expansion piston is provided with a plurality of groups of supporting flexible plate springs which are respectively sleeved on limit pipes on the inner wall of the expansion piston and the expansion piston rod for positioning so as to ensure that clearance sealing structures are radially formed between the expansion cylinder and the expansion piston and the expansion piston and the expansion piston rod. According to the clearance type sealing Stirling thermoelectric converter, the non-contact type clearance sealing structures are realized by adopting the flexible plate spring supporting systems, and meanwhile, the rigidity requirement of a generator active cell oscillation system can be met, so that the structural characteristic of no abrasion after long-term running of moving components is realized so as to guarantee the long service life and the high rigidity of the Stirling generator.

Description

technical field [0001] The invention relates to a gap-type sealed Stirling thermoelectric converter supported by a supporting flexible plate spring, which belongs to the technical field of energy. Background technique [0002] The Stirling thermoelectric converter is a key component of the Stirling power generation system. The Stirling thermoelectric conversion technology uses heat sources such as radioactive isotope heat sources, solar energy, and nuclear energy to convert thermal energy into mechanical energy through the Stirling thermoelectric converter, and then through the Stirling thermoelectric converter. The linear alternator outputs electrical power. Stirling thermoelectric conversion technology has the highest efficiency among thermoelectric conversion technologies. Gap sealing technology is the key technology of the Stirling thermoelectric converter, which is usually realized by means of flexible leaf spring support and gas static pressure bearing, so as to reali...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02G1/053
Inventor 霍英杰王丽红董亮王田刚闫春杰王娜
Owner 中国航天科技集团公司第五研究院第五一0研究所
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