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Free stroke piston expander generation device utilizing high pressure gas to output electric energy

A high-pressure gas and power generation device technology, which is applied in the field of expanders, can solve the problems of energy mismatch, large space occupation, and large output power, and achieve high energy conversion efficiency, less energy loss, and compact device structure.

Inactive Publication Date: 2013-10-02
BEIJING UNIV OF TECH
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  • Abstract
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Problems solved by technology

Generally, if ordinary cars and ships consider the heat recovery and reuse of internal combustion engines, it is not realistic to apply turbo expanders: the output power of the first turbo expander is large, which does not match the energy of ordinary small-scale low-grade heat sources; the second turbo expander The machine takes up a lot of space, and the space for ordinary small and low-grade heat sources is limited

Method used

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  • Free stroke piston expander generation device utilizing high pressure gas to output electric energy
  • Free stroke piston expander generation device utilizing high pressure gas to output electric energy

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Embodiment Construction

[0013] The present invention will be further described below in conjunction with the accompanying drawings.

[0014] The free-stroke piston expander of the device includes a gas distribution mechanism A (1), a pressure detection element A (2), a temperature detection element A (3), a cylinder head A (4), a cylinder body A (5), a piston A ( 6), cylinder block B (11), piston B (12), temperature detection element B (13), pressure detection element B (14), gas distribution mechanism B (15), cylinder head B (16); linear generator The integrated system includes a mover movement position detection element (7), an electronic control unit ECU (8), a linear generator mover (9), a linear generator stator (10), a rectifier (17), and an electric energy storage device (18). The free-stroke piston expander is equipped with piston A (6) and piston B (12) in the cylinder body A (5) and cylinder body B (11) respectively; cylinder head A (4) and cylinder head B (16) respectively Equipped with g...

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Abstract

The invention relates to a free stroke piston expander generation device utilizing high pressure gas to output electric energy. The device comprises a free stroke piston expander, a linear alternator, an ECU (electronic control unit), a rectifier and an electric energy storage device. According to the device, the high pressure gas is outputted to drive two pistons in the piston expander, so that the active cell in the linear alternator does reciprocating motion and cuts magnetic lines of force to directly output electric energy. Compared with the existing expander, the free stroke piston expander generation device has the advantages of compact structure, superior balance performance, adjustable expansion ratio, low abrasion frictional loss, higher energy exchange efficiency and the like, and achieves a wider application prospect.

Description

technical field [0001] The invention relates to a power generation device which utilizes high-pressure gas to output electric energy, and relates to the field of expanders. In particular, it relates to a free-stroke piston expander power generation device which utilizes high-pressure gas to output electric energy. Background technique [0002] Since the spread and development of the energy crisis in the 1970s, researchers from all over the world have paid more and more attention to the recovery and reuse of energy. Rankine cycle systems are widely used in coal, chemical and other high heat-discharging industries, in which the waste heat recovery system is an important part of its thermal power conversion, and the expanders in this system mostly use turbo expanders. Generally, if ordinary cars and ships consider the heat recovery and reuse of internal combustion engines, it is not realistic to apply turbo expanders: the output power of the first turbo expander is large, whic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01B1/00F01B25/02H02K35/02
Inventor 赵光耀张红光刘昊恒江王艳常莹
Owner BEIJING UNIV OF TECH
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