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Coaxial travelling-wave thermo acoustic drive refrigerating system

A technology of a refrigeration system and a thermoacoustic refrigerator, which is applied in the field of refrigeration and low temperature, can solve the problems of hindering the efficiency of the whole machine, the pressure ratio of the traveling wave thermoacoustic engine is not too high, etc., and achieves reduction in size, elimination of thermoacoustic direct current, and compact system structure. Effect

Inactive Publication Date: 2007-08-15
LIHAN THERMOACOUSTIC TECH SHENZHEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the current traveling wave thermoacoustic engine-driven traveling wave thermoacoustic refrigerator generally uses helium as the common working medium, so that the pressure ratio generated by the traveling wave thermoacoustic engine is not too high, which also hinders the improvement of the efficiency of the whole machine

Method used

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  • Coaxial travelling-wave thermo acoustic drive refrigerating system
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  • Coaxial travelling-wave thermo acoustic drive refrigerating system

Examples

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Embodiment 1

[0051] As shown in Figure 2, a coaxial traveling wave thermoacoustic engine 20 and a coaxial traveling wave thermoacoustic refrigerator 21 are made respectively by the above method, and they are connected together through the same shell 16, and the engine and refrigeration There is a cavity surrounded by a shell between the machines, and a frequency modulation element is installed in the cavity to strictly isolate the traveling wave thermoacoustic engine from the traveling wave thermoacoustic refrigerator. The frequency modulation element has the function of adjusting the frequency of the sound wave, replacing the traditional The traveling wave thermoacoustic engine drives the overly bulky resonant tube in the traveling wave thermoacoustic refrigerator, and at the same time plays a role in reducing the frequency of the sound wave. The frequency modulation element is a first elastic diaphragm 19, which is made of silica gel, has a mass of 200 grams, and a tension of 2000 N / m 2 ...

Embodiment 2

[0056] As shown in Figure 5, two coaxial traveling-wave thermoacoustic engines and one coaxial traveling-wave thermoacoustic refrigerator are made respectively by the above method, and they are connected together through a "T"-shaped shell, and the two The traveling wave thermoacoustic engines are arranged symmetrically to reduce system vibration. There is a cavity surrounded by a section of housing between the engine and the refrigerator, and a frequency modulation element is installed in the cavity. This frequency modulation element is a first elastic diaphragm 19, which is located near a traveling wave thermoacoustic refrigerator. side, perpendicular to the axis of the traveling wave thermoacoustic refrigerator, it strictly isolates the traveling wave thermoacoustic refrigerator from the two traveling wave thermoacoustic engines, and the two traveling wave thermoacoustic engines are connected. The frequency modulation element has the function of adjusting the frequency of t...

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Abstract

A refrigeration system of traveling wave thermo acoustic refrigerator driven by traveling wave thermo acoustic engine, which contains traveling wave thermo acoustic engine and traveling wave thermo acoustic refrigerator which are installed in a casing, a frequency modulation element strictly isolated installation between them, said traveling wave thermo acoustic engine is coaxial traveling wave thermo acoustic engine, said traveling wave thermo acoustic refrigerator is coaxial traveling wave thermo acoustic refrigerator. Said invention utilizes a fine quality elastic membrane and a elastic-quality frequency modulation element to replace respectively the function of inertia pipe and resonatron, adopts coaxial design thermo acoustic direct current.

Description

field of invention [0001] The invention relates to the technical field of refrigeration and low temperature, in particular to a refrigeration system in which a traveling wave thermoacoustic engine drives a traveling wave thermoacoustic refrigerator. Background technique [0002] A thermoacoustic engine-driven thermoacoustic refrigerator is a new approach to refrigeration that is completely free of moving parts. It runs stably and reliably, and has a long service life; it uses heat as energy, and can use solar energy, waste heat, etc. Broad development prospects. [0003] Since the operation of the standing wave thermoacoustic machine is based on the internal irreversible thermodynamic cycle, the entropy increase caused by the irreversible heat exchange between the gas and the plate stack reduces the conversion efficiency of the standing wave thermoacoustic machine, and its thermodynamic efficiency is often not very high , generally below 0.2, and the traveling wave thermoa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F25B23/00
Inventor 罗二仓胡剑英戴巍吴剑峰
Owner LIHAN THERMOACOUSTIC TECH SHENZHEN
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