V-shaped gap type hemispherical blunt body micro-combustor with hydrogen permeation and combustion stabilization functions

Abstract

The invention discloses a V-shaped gap type hemispherical blunt body micro-combustor with the hydrogen permeation and combustion stabilization functions. The micro-combustor comprises an outer spherical body, an inner spherical body and a blunt body. At least one set of gas inlet channels are formed in the peripheral direction of the middle of the outer spherical body. Each gas inlet channel of each set is composed of a fuel gas inlet, an air inlet and a hydrogen inlet. A gas outlet channel is formed in the bottom of the outer spherical body, and another gas outlet channel is formed in the bottom of the inner spherical body. The inner spherical body is composed of a segment and a round multi-hole panel. The segment is made of a hydrogen permeation material. The round multi-hole panel is provided with a plurality of round holes. The blunt body is a hollow hemispherical body and is arranged on the upper portion in the inner spherical body. The top of the blunt body is provided with a V-shaped gap. The micro-combustor enables gas of micro flow to generate catalytic combustion reaction fast and efficiently. Due to the blunt body, the premixed gas forms a return flow zone in the back of the blunt body; according to the characteristics of low speed and high temperature of the rear return flow zone of the blunt body, near fuel is lighted so that the purpose of combustion stabilization can be achieved, the blow-off limit of the fuel can be improved greatly, and the combustion efficiency is improved.

Description

technical field [0001] The invention relates to a micro-scale reactor suitable for gas catalytic combustion, in particular to a V-shaped slit-type hemispherical blunt body micro-combustor with the function of hydrogen permeation and stable combustion. Background technique [0002] With the development of high technology, the application of MEMS has been paid more and more attention by scientists. MEMS is the integration of microcircuits and micromachines on a chip according to functional requirements. The size is usually at the millimeter or micron level. Since its rise in the mid-to-late 1980s, it has developed extremely rapidly. It will become a new national economic growth point and an important technical way to improve military capabilities in the 21st century. The advantages of MEMS are: small size, light weight, low power consumption, good durability, low price, and stable performance. The emergence and development of MEMS is the result of scientific and innovative t...

AI Technical Summary

Problems solved by technology

However, at this stage, due to the small size of the micro-scale burner, it has the disadvantages of serious heat dissipation, short gas residence time, difficult to ignite, and unstable combustion, which leads to insufficient reaction and low combustion efficiency.

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