一种双温位热源驱动的热声三相交流发电系统

Thermo-acoustic three-phase alternating current generating system driven by double-temperature-position heat source

Abstract

本发明公开了一种双温位热源驱动的热声三相交流发电系统,包括磁流体发电装置和构成环路的热声转换装置,所述环路内充有可相变工质,该可相变工质的液相作为磁流体发电装置的工质,可相变工质的气相作为热声转换装置的工质;所述磁流体发电装置和相匹配的热声转换装置作为一个环路单元,所述热声三相交流发电系统至少有两个环路单元,各环路单元之间相互连通共用所述的可相变工质。以气液相变热声转换机构产生一定量的声功,再以行波热声发动机作为放大级把产生的声功放大。中温换热器与高温换热器加热温度的不同,可实现双温位热源利用,驱动系统工作,可提高中低温位低品位热源的利用率。系统内存在气液相变,具有自适应调节能力。
The invention discloses a thermo-acoustic three-phase alternating current generating system driven by a double-temperature-position heat source. The thermo-acoustic three-phase alternating current generating system comprises a magnetic fluid electric generating device and a thermo-acoustic converting device forming a loop. The loop is filled with a phase-changeable work medium, the liquid phase of the phase-changeable work medium serves as the work medium of the magnetic fluid electric generating device, and the gas phase of the phase-changeable work medium serves as the medium of the thermo-acoustic converting device. The magnetic fluid electric generating device and the matched thermo-acoustic converting device serve as a loop unit, the thermo-acoustic three-phase alternating current generating system at least comprises two loop units, and the loop units are communicated with each other to share the phase-changeable work medium. A certain amount of acoustic power is produced through a gas-liquid phase change thermo-acoustic converting mechanism, and a traveling wave thermo-acoustic engine serves as an amplification stage to amplify the produced acoustic power. A medium temperature heat exchanger and a high temperature heat exchanger are different in heating temperature, the double-temperature-position heat source can be used for driving the system to work, and the utilization rate of a medium and low temperature position and low grade heat source can be increased. Gas-liquid phase change exists in the system, and therefore the self-adaptation adjusting capacity is achieved.

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