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Thermo-acoustic drive frictional nano-generation system employing elastic membrane

An elastic diaphragm and nano-power generation technology, which is applied in the direction of friction generators, machines/engines, and mechanisms for generating mechanical power, can solve the problem of lack of stable power sources for friction nano-generators, and achieve a wide variety of preparation materials and long service life. Long and stable thermoelectric conversion effect

Active Publication Date: 2017-06-20
TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of the present invention is to overcome the shortcomings of the existing thermoacoustic power generation system and the lack of a stable power source for the friction nanogenerator, and solve the technical difficulties in the coupling of the friction nanogenerator and the thermoacoustic engine, and provide a thermoacoustic generator using an elastic diaphragm. Acoustic-driven triboelectric nanogenerator system

Method used

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  • Thermo-acoustic drive frictional nano-generation system employing elastic membrane
  • Thermo-acoustic drive frictional nano-generation system employing elastic membrane
  • Thermo-acoustic drive frictional nano-generation system employing elastic membrane

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Embodiment 1

[0034] figure 1 It is a schematic structural diagram of a thermoacoustic-driven frictional nano-power generation system using an elastic diaphragm in Embodiment 1 of the present invention, which includes: a standing wave thermoacoustic engine 11 and a resonator connected to the standing wave thermoacoustic engine through a connecting pipe 2 The frictional nanogenerator 5 at the junction of the tube 115 and the room temperature heat exchanger 114.

[0035] The standing wave thermoacoustic engine includes a thermal cavity 111 , a heater 112 , a plate stack 113 , a room temperature heat exchanger 114 and a resonance tube 115 connected in sequence.

[0036] The triboelectric nanogenerator 5 is installed in a bellows 3, and the inner cavity of the bellows 3 is ellipsoidal. The bellows 3 communicates with the standing wave thermoacoustic engine 11 through a connecting pipe 2, and a circular elastic diaphragm 41 is installed in the bellows 3 to divide the bellows into upper and lowe...

Embodiment 2

[0043] figure 2 It is a structural schematic diagram of a thermoacoustic-driven frictional nano-power generation system using an elastic diaphragm in Embodiment 2 of the present invention, which includes: a standing wave thermoacoustic engine 11 and two connecting pipes 2 respectively bypassing the standing wave thermal generator 11. Two frictional nanogenerators 5 at the junction of the acoustic engine resonance tube 115 and the room temperature heat exchanger 114 .

[0044] The standing wave thermoacoustic engine includes a thermal cavity 111 , a heater 112 , a plate stack 113 , a room temperature heat exchanger 114 and a resonance tube 115 connected in sequence.

[0045] Each of the triboelectric nanogenerators 5 is respectively installed in a bellows 3, and the inner cavity of the bellows 3 is ellipsoidal. The bellows 3 communicates with the standing wave thermoacoustic engine 11 through a connecting pipe 2, and a combination piece 42 is installed in the bellows 3 to div...

Embodiment 3

[0052] image 3 It is a structural schematic diagram of a thermoacoustic-driven frictional nanopower generation system using an elastic diaphragm in Embodiment 3 of the present invention, which includes: a traveling wave thermoacoustic engine 12 and a frictional nanogenerator 5 .

[0053] The traveling wave thermoacoustic engine 12 includes a main room temperature heat exchanger 124, a regenerator 123, a heater 122, a thermal buffer tube 126, a secondary room temperature heat exchanger 127, and a feedback tube 128 connected in sequence. The feedback tube 128 One end is connected to the main room temperature heat exchanger 124, and the other end of the feedback pipe 128 is respectively connected to the secondary room temperature heat exchanger 127, the resonance tube 125 and the friction nanogenerator connecting pipe 2 through a four-way connection, and one end of the connecting pipe 2 is connected to Bellows 3 are connected.

[0054] The friction nanogenerator 5 is installed ...

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Abstract

The invention discloses a thermo-acoustic drive frictional nano-generation system employing an elastic membrane, and the system comprises a thermo-acoustic engine and a plurality of membrane boxes (3), wherein the membrane boxes (3) are communicated with the thermo-acoustic engine through connection pipes (2). The interior of the inner cavity of each membrane box (3) is provided with an elastic membrane, wherein the elastic membrane enables the membrane box (3) to be divided into an upper cavity and a lower cavity, the upper cavity and lower cavity are isolated with each other, and the interior of the lower cavity is provided with a frictional nano-generator. The system enables the external heat energy to be converted into acoustic energy through the thermo-acoustic engine, and converts the acoustic energy into electric energy for output through the frictional nano-generator. The whole system is high in reliability, is low in cost, is simple in structure, and is long in service life. Compared with a conventional frictional nano-generation mode, the system can achieve the continuous, stable and high-power thermo-electric conversion.

Description

technical field [0001] The invention relates to the field of thermoacoustic power generation, in particular to a thermoacoustic driven frictional nanometer power generation system using an elastic diaphragm. Background technique [0002] When an appropriate temperature gradient and sound field exist in a pipe, acoustic oscillations are spontaneously generated, converting thermal energy into mechanical energy in the form of acoustic waves, which is the thermoacoustic effect. As a new type of external combustion heat engine, thermoacoustic engine uses thermoacoustic effect to convert heat energy into sound energy. It has the advantages of reliable operation and long life without mechanical moving parts, high potential thermal efficiency and environmental friendliness. According to the sound field characteristics of thermoacoustic conversion, thermoacoustic engines can be divided into traveling wave thermoacoustic engines and standing wave thermoacoustic engines. Low, but it h...

Claims

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Application Information

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IPC IPC(8): H02N1/04F03G7/00
CPCF03G7/002H02N1/04
Inventor 朱顺敏余国瑶罗二仓吴张华戴巍
Owner TECHNICAL INST OF PHYSICS & CHEMISTRY - CHINESE ACAD OF SCI
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