Mini liquid burner capable of reducing wall wetting effect and burning method thereof

A micro-liquid and burner technology, applied in the direction of combustion method, burner, combustion type, etc., can solve the problems of low fuel utilization rate, short mixture residence time, uneven combustion temperature distribution, etc., and achieve the effect of increasing residence time.

Pending Publication Date: 2018-10-12
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the shortcomings and deficiencies of the above-mentioned prior art, to provide a miniature liquid burner and its combustion method that reduces the wetted wall effect, to solve the problem of using charged spray for liquid hydrocarbon fuel in the microscale of the burner. When using the new method, the wet wall phenomenon is serious, the fuel utilization rate is low, the mixture gas residence time is short, and the combustion temperature distribution is uneven and other technical problems

Method used

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  • Mini liquid burner capable of reducing wall wetting effect and burning method thereof
  • Mini liquid burner capable of reducing wall wetting effect and burning method thereof
  • Mini liquid burner capable of reducing wall wetting effect and burning method thereof

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Embodiment

[0036] Such as Figure 1-5shown. The invention discloses a miniature liquid burner for reducing the wetted wall effect, which comprises an outer sleeve 2, an inner sleeve 3 and a combustion chamber 13 arranged at the inner upper part of the inner sleeve 3; the outer sleeve 2 and the inner sleeve 3 They are nested with each other, and their lower ends are sealed and fixed on the lower cover plate 6, and the upper end of the outer sleeve 2 is sealed by the upper cover plate 1; the fuel nozzle 7 is installed on the lower cover plate 6; the outer sleeve 2 and the inner sleeve 3 are connected to each other interval, and form the exhaust gas discharge channel; there is a gap 15 between the upper end of the inner sleeve 3 and the upper cover plate 1, and the upper port of the inner sleeve 3 is sealed with the outer edge of the combustion chamber 13; the exhaust gas after combustion in the combustion chamber 13 , sequentially discharged from the gap 15 at the upper end of the inner s...

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PUM

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Abstract

The invention discloses a mini liquid burner capable of reducing wall wetting effect and a burning method thereof. The burner mainly comprises an upper cover plate, a lower cover plate, an inner sleeve, an outer sleeve, a burning chamber, a tapered atomizing chamber, etc., wherein a plurality of air inlet notches which are symmetrically distributed are tangentially formed along the circumferentialwall surface of the tapered atomizing chamber; a plurality of air inlet pipelines penetrate the outer sleeve and the inner sleeve and communicate with an air chamber; outside air enters the air chamber through the air inlet pipelines and then spirally moves along the inner wall surface of the tapered atomizing chamber through the air inlet notches, and the air forms an air film on the inner wallsurface of the tapered atomizing chamber, and thus the wall wetting effect caused by liquid charge atomizing in the atomizing chamber can be reduced; and meanwhile, partial exhaust gas is recovered and utilized to preheat the air and preserve the heat of the burner, so that the heat loss is decreased, and the burning efficiency is improved.

Description

technical field [0001] The invention relates to a combustion device, in particular to a miniature liquid burner and a combustion method for reducing the wetted wall effect. Background technique [0002] In the past ten years, with the rapid development of MEMS micro-processing technology and the urgent needs of both military and civilian applications, various micro-miniature aircraft and portable electronic devices have emerged. Currently, the vast majority of tiny devices and systems are powered by conventional chemical batteries. However, chemical batteries have disadvantages such as low energy density, large volume and weight, short use time, and long charging time, which are not enough to meet the requirements of micro power equipment for endurance. The energy density of liquid hydrocarbon fuels can reach dozens of times the energy density of the best lithium batteries at present. At the same time, liquid hydrocarbon fuels are environmentally friendly fuels compared to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23D11/22F23D11/36F23D11/44F23D11/38
CPCF23D11/22F23D11/36F23D11/38F23D11/441Y02E20/34
Inventor 甘云华叶宏程江政纬
Owner SOUTH CHINA UNIV OF TECH
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