Thermoacoustic-drive thermomagnetic power generating system

Abstract

A thermoacoustic-drive thermomagnetic power generating system comprises a thermoacoustic engine and a thermomagnetic power generator mounted on a resonance tube of the thermoacoustic engine. The thermomagnetic power generator comprises two room-temperature heat exchangers, a high-temperature heat exchanger, at least one magnet conductive section, a pair of magnetizing blocks and a permanent magnet, wherein the high-temperature heat exchanger is arranged between the two room-temperature heat exchangers, the magnet conductive sections are mounted among the room-temperature heat exchangers and the high-temperature heat exchanger, the magnetizing blocks are disposed oppositely, the permanent magnet is clamped between one ends of the magnetizing blocks, the magnet conductive sections are clamped between the other ends of the magnetizing blocks, a coil is sleeved on the magnetizing blocks, and each magnet conductive section, the permanent magnet and the pair of magnetizing blocks form a magnetic loop. When alternating flowing fluid in a system moves back and forth among the room-temperature heat exchangers and the high-temperature heat exchanger, sheets of magnetized materials of the magnet conductive sections are heated or cooled; magnetic resistance and magnetic flux of the magnetic loop vary along with variation of magnetic conductivity of the magnetized materials, and the coil generates induced electromotive force and generates electric energy then. The thermoacoustic-drive thermomagnetic power generating system is totally free of mechanical moving parts, high in reliabilityand power density and the like.

Description

technical field [0001] The invention relates to a thermomagnetic power generation device, in particular to a thermoacoustic driven thermomagnetic power generation system. Background technique [0002] Thermoacoustic engines have the advantages of good energy adaptability, no moving parts, and high reliability. It is a device that uses thermal energy to generate fluid reciprocating motion; in addition, its operating frequency is very wide, generally in the range of several hertz to thousands of hertz. A thermomagnetic generator is a device that uses high-permeability materials to undergo a huge change in the permeability near the Curie temperature, which causes a change in the magnetic flux passing through the coil in the magnetic circuit, thereby generating electrical energy. However, the thermomagnetic power generation system needs to alternately heat and cool the magnetic material, and how to realize rapid heating and cooling of the magnetic material is one of the difficu...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of mechanical moving parts in the existing thermomagnetic generator and the problem that it is difficult to realize rapid heat exchange, which leads to problems such as difficult production, high maintenance cost, low power density, and difficult expansion, etc., and provides a A thermoacoustic-driven thermomagnetic power generation system; the thermoacoustic-driven thermomagnetic power generation system has no mechanical moving parts, and can realize high-frequency heating and cooling, and has the advantages of high reliability, high power density, and low manufacturing cost. It overcomes the problems existing in the traditional thermomagnetic power generation technology, and has broad application prospects in the utilization of solar energy, biomass heat energy and industrial waste heat.

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