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Induction type thermoacoustic liquid metal magnetofluid multiphase alternating current power generation system

A magnetic fluid generator and liquid metal technology, applied in electromechanical devices, electrical components, machines/engines, etc., can solve the problems of low voltage, high output current, difficult sealing and assembly, etc., and achieve high power generation efficiency and long service life , high reliability effect

Active Publication Date: 2022-06-21
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] In view of this, it is necessary to overcome the shortcomings of the existing thermoacoustic liquid metal magnetic fluid power generation system, such as large output current, low voltage and inability to output multi-phase alternating current, complex structure, large flow loss, and difficult sealing and assembly of the magnetic fluid generator, to provide an induction Thermoacoustic liquid metal magnetic fluid multiphase AC power generation system

Method used

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  • Induction type thermoacoustic liquid metal magnetofluid multiphase alternating current power generation system
  • Induction type thermoacoustic liquid metal magnetofluid multiphase alternating current power generation system
  • Induction type thermoacoustic liquid metal magnetofluid multiphase alternating current power generation system

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Embodiment 1

[0035] see figure 1 , is a schematic structural diagram of an induction thermoacoustic liquid metal magnetic fluid multiphase AC power generation system provided in Embodiment 1 of the present invention, including: a multistage traveling wave thermoacoustic engine 1 and a multistage induction liquid metal magnetic fluid generator 2, so The working medium in the multi-stage traveling wave thermoacoustic engine is gas, and the gas is helium or nitrogen, and the working medium in the multi-stage induction liquid metal magnetic fluid generator is low melting point liquid metal. The structure of each unit and its working mode are described in detail below.

[0036] Specifically, the multi-stage traveling wave thermoacoustic engine 1 includes several thermoacoustic conversion units 10 connected in series in a loop, and each of the thermoacoustic conversion units 10 includes a main room temperature heat exchanger 11 , a regenerator 12 , a heating 13, thermal buffer tube 14, sub-room...

Embodiment 2

[0055] see image 3 , is a schematic structural diagram of the inductive thermoacoustic liquid metal magnetic fluid multiphase AC power generation system provided in Embodiment 2 of the present invention, and only the differences from Embodiment 1 are described below.

[0056] It can be understood that in Example 1, the gas working medium in the thermoacoustic engine and the liquid metal in the magnetofluidic generator rely on gravity to form a gas-liquid interface, which limits the reliability and application scope of the power generation system to a certain extent, such as In the case of offshore power generation with relatively large vibration and outer space with relatively low or no gravitational acceleration, the solution in Embodiment 1 cannot be used.

[0057] On the basis of Embodiment 1, the present embodiment 2 installs an elastic film 18 at the gas-liquid interface to separate the gas working medium in the thermoacoustic engine from the liquid metal in the magnetic...

Embodiment 3

[0060] see Figure 4 , is a schematic structural diagram of the inductive thermoacoustic liquid metal magnetic fluid multiphase AC power generation system provided in Embodiment 3 of the present invention, and only the differences from Embodiment 1 are described below.

[0061] On the basis of Embodiment 1, this embodiment 3 also uses liquid metal as the working medium for the thermoacoustic engine, so that there is no need to use an elastic film to control the gas-liquid interface, which further improves the reliability and service life of the power generation system. Applications such as space power generation are critical.

[0062] The inductive thermoacoustic liquid metal ferrofluidic multiphase AC power generation system provided in the third embodiment of the present invention couples the inductive liquid metal ferrofluidic generator in the resonance tube of the multistage traveling wave thermoacoustic engine, and converts the external heat source through the thermoacous...

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Abstract

According to the induction type thermoacoustic liquid metal magnetofluid multiphase alternating current power generation system provided by the invention, the induction type liquid metal magnetofluid power generator is coupled in the resonant tube of the multistage traveling wave thermoacoustic engine, and heat energy provided by an external heat source is converted into sound energy (mechanical energy) of reciprocating oscillation of a working medium in the thermoacoustic engine through a thermoacoustic effect; and the liquid metal in the induction type liquid metal magnetohydrodynamic generator is pushed to reciprocate. Under the action of an external constant magnetic field, alternating annular current is induced in liquid metal flowing back and forth in an annular flow channel around the magnetic core, then an alternating magnetic field in the axial direction of the flow channel is generated, further, the alternating magnetic field induces electromotive force in a coil wound on the outer side of a pipeline, and output of electric energy can be achieved through an external load. Due to the adoption of the power generation technology combining the thermo-acoustic engine and the magnetohydrodynamic generator, the system is high in theoretical power generation efficiency, completely free of mechanical moving parts, high in reliability and long in service life.

Description

technical field [0001] The invention relates to the technical field of power generation, in particular to an inductive thermoacoustic liquid metal magnetic fluid multiphase alternating current power generation system. Background technique [0002] When there is an axial temperature gradient in a pipeline, and the temperature gradient is large enough, spontaneous reciprocating oscillation will occur in the pipeline. This spontaneous reciprocating oscillation not only pumps the heat from the high temperature end to the low temperature end, but also realizes the Convert part of the heat into mechanical energy of reciprocating oscillation. Because the mechanical motion of reciprocating oscillation has many similarities with sound waves, it is also called sound energy. This is the realization principle of the thermoacoustic effect. A thermoacoustic engine is an energy conversion device that uses the thermoacoustic effect to directly convert thermal energy into sound energy. Bec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K44/18H02K44/16H02K44/08F03G7/00F03G7/06
CPCH02K44/18H02K44/16H02K44/085F03G7/00F03G7/06
Inventor 罗二仓蒋超解家春朱顺敏余国瑶赵爱虎吕征刘凯旋赵守智
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI