A micro-combustor for catalytic reforming of liquid fuel

Abstract

The invention relates to a combustion device, in particular to a catalytic reforming microburner of liquid fuel. The catalytic reforming microburner of the liquid fuel comprises a round top cover plate and a shell connected with the top cover plate into a whole, wherein the top cover plate is provided with two symmetrical fuel inlet holes; the upper part of the side surface of the shell is provided with two symmetrical air inlet holes; the lower part of the side surface of the shell is provided with two symmetrical vent holes; the center of the bottom of the shell is provided with an igniter hole; a fuel channel and an air channel are in crossed communication at an angle of 90 degrees; the fuel channel and the air channel are communicated with one side of a combustion chamber; an exhaust duct is communicated with the other side of the combustion chamber. The catalytic reforming microburner of the liquid fuel has the beneficial effects that the fuel channel and the surface of the combustion chamber are provided with annular threads to enlarge heat exchange areas and reinforce heat exchange between fuel and high-temperature smoke; the fuel channel and the surface of the combustion chamber are respectively provided with cracking catalyst / reforming catalyst and combustion catalyst, and liquid fuel can be enabled to efficiently burn in the microburner.

Description

technical field [0001] The invention relates to a combustion device, in particular to a micro burner for catalytic reforming of liquid fuel. Background technique [0002] The micro energy supply system with micro-scale burner as the core has attracted more and more attention due to its advantages of small size, light weight, high energy density, and long energy supply time. However, the size of the micro-scale burner is several orders of magnitude smaller than that of the traditional burner, and its small characteristic scale increases the specific surface area, greatly improves the heat dissipation rate, causes serious heat loss, makes the flame difficult to stabilize, and is prone to flameout; at the same time, The reduction in size leads to a short residence time of fuel and air in the burner, which cannot ensure the complete combustion of fuel, especially liquid fuel. Therefore, achieving stable combustion without flameout in a micro scale is the primary problem to be s...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems of unstable combustion, low combustion efficiency and low comprehensive heat utilization efficiency in the micro-scale combustion process of liquid fuels in the prior art, a micro-combustor for catalytic reforming of liquid fuels is proposed

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