Charged spray catalytic micro burner

Abstract

The invention discloses a charged spray catalytic micro burner which mainly comprises an upper barrel, a middle barrel, a lower barrel and an igniter. Liquid fuel spay pipes are arranged in the lower barrel, a catalytic combustion gird coated with catalysts in a spraying mode is arranged between the upper barrel and the middle barrel, and an ignition needle of the igniter penetrates through the wall face of the upper barrel, and is arranged above a grid inside the upper barrel. An annular electrode is arranged between the middle barrel and the lower barrel, and a highfield area is formed between the grid and the annular electrode. A spray pipe fixing plug is arranged below the lower barrel, and the spray pipes are fixed to the plug. According to the characteristic of liquid fuel combustion under a microscale condition, the double-electrode structure is designed, the annular electrode is combined with spray pipe electrodes, a charged spray technology is combined with a catalytic combustion technology, and the multiplexing spray pipes are designed. Efficient, stable and low-pollution combustion of the liquid fuel can be achieved under the microscale condition, the aim of controlling the complex combustion process can be achieved by adjusting voltages and other simple electric field parameters, and theoretical innovativeness is achieved.

Description

technical field [0001] The invention relates to a miniature liquid fuel burner, in particular to a charge-spray catalytic micro-combustor. Background technique [0002] With the rapid development of MEMS technology, micro-energy systems have become a research hotspot today. Combustion-based micro-energy systems have the characteristics of high energy density (about 20 to 75 times that of conventional batteries) and small combustion scales (generally mm and μm levels). The performance of its core component, the micro-combustor, needs to be improved urgently, which has become a bottleneck for the further development of the micro-energy system. [0003] At present, the research on micro-scale combustion at home and abroad mostly focuses on the premixed combustion or catalytic combustion of gaseous fuels, while the research on the combustion of liquid fuels is less. Compared with gaseous fuels, liquid fuels have the advantages of easy storage and transportation, high energy de...

AI Technical Summary

Problems solved by technology

At the same time, as the size of micro-scale combustion is smaller than that of traditional combustion, many technical difficulties have arisen

For example, the ratio of the surface area to the volume of the micro burner is much larger than that of the traditional burner, which increases the heat loss and reduces the temperature in the flame stable area, which is easy to cause the flame to go out and affect the stability of the fuel ignition.

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