Multi-level traveling wave thermoacoustic engine system for flue gas waste heat

Abstract

The invention relates to the technical field of engines, and discloses a multi-level traveling wave thermoacoustic engine system for flue gas waste heat. The multi-level traveling wave thermoacoustic engine system for the flue gas waste heat comprises at least three thermoacoustic engine units and resonant tubes; the engine units are connected end to end to form a loop through the resonant tubes, and the diameters of the engine units are sequentially decreased; each engine unit comprises a direct current suppressor, a main cooler, a heat regenerator, a heater, a high-temperature end laminarization element, a thermal buffering tube, a low-temperature end laminarization element and a cooler which are sequentially connected in series. According to the multi-level traveling wave thermoacoustic engine system for the flue gas waste heat, the waste heat, namely, discharged heat at different temperatures is utilized in a stepping mode, and the higher conversion efficiency can be achieved; standing wave resonant tubes with larger sizes in traditional thermoacoustic engines are cancelled, the acoustic work consumed by the resonant tubes are recovered, and the advantages of being high in efficiency, compact in structure, high in energy density, simple in output device, centralized in output and low in cost are achieved.

Description

technical field [0001] The invention relates to the technical field of engines, in particular to a flue gas waste heat multi-stage traveling wave thermoacoustic engine system, in particular to a multi-stage flue gas waste heat that can utilize heat sources of different temperature grades with high efficiency and low steps, and simultaneously output a single output Traveling wave thermoacoustic engine system. Background technique [0002] Energy is an important basis for economic development and social progress, and energy conservation and emission reduction is a key issue for my country to better carry out modernization and develop a market economy. Waste heat utilization, as an important part of energy conservation and emission reduction, has great potential for development. Waste heat belongs to secondary energy. It is rich in resources in my country and widely exists in power plant boilers and industrial equipment. The total amount of high-temperature flue gas waste heat...

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Problems solved by technology

[0010] The technical problem to be solved by the present invention is that the existing induction cooker is equipped with a fan on the base of the induction cooker. Since the existing induction cooker is not provided with an oil fume removal device, the fan is easy to suck a large amount of oil fume or water generated by cooking into the inside of the induction cooker during use, causing damage. internal electronic components, thereby reducing electromagnetic lifetime

In addition, the induction cooker sets the air outlet on the side wall of the induction cooker shell, and the air outlet is exposed to the external environment, so it is easy for insects and ants to enter the induction cooker through the air outlet, causing damage to the electronic devices, causing the induction cooker to fail to work normally, and the service life is longer. short question

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