Combustion bed of Rijke pulse combustion device for gas fuel

Abstract

The invention relates to a combustion bed of a Rijke pulse combustion device for gas fuel. The combustion bed is characterized in that a gas inlet pipe is arranged in the center of a distribution cavity, the top end of the gas inlet pipe is tightly attached to an upper distribution plate, and gas outlet holes are formed in the side wall of the gas inlet pipe; pipe holes are evenly formed in the upper distribution plate and a lower distribution plate of the distribution cavity in the circumferential direction, thin combustion pipes are arranged inside the pipe holes in a penetrating mode, and gas inlet holes are formed in the side walls of the thin combustion pipes. The combustion bed is scientific and reasonable in design, and the gas fuel is conveyed into the gas inlet pipe, is distributed for the first time in the gas outlet holes of the gas inlet pipe, enters the distribution cavity, then is conveyed to each part of the distribution cavity through a fuel conveying channel and is distributed for the second time in the thin combustion pipes to achieve the effect of uniform distribution of a bed layer; and compared with common combustion, the combustion bed has the advantages of being uniform in gas distribution, sufficient in combustion, short in combustion flame and good in pulse combustion stability.

Description

technical field [0001] The invention belongs to the technical field of pulse combustion, and relates to a gas combustion device, in particular to a combustion bed of a Rick type pulse combustion device used for gas fuel. Background technique [0002] Pulsating combustion is a combustion method between continuous combustion and explosive combustion. It is a self-excited oscillation combustion phenomenon that occurs under a certain burner structure. Compared with the continuous combustion process, the pulse burner has high combustion intensity, heat transfer efficiency and overall thermal efficiency, and low pollutant emission. According to the different acoustic structure of the burner, the pulsating burner is divided into three types: Schmidt type, Helmholtz type and Rijke type. Among them, the Helmholtz type is suitable for gaseous fuels, while the Rick type pulsating burner can burn solid, liquid, and gaseous fuels. [0003] The Rick type pulsating burner is a vertical s...

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Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a combustion bed for a Rick-type pulsation combustion device for gas fuel, which solves the problem of uneven distribution of gas fuel in a large-diameter pulsation burner, long flames, and pulsation The combustion is unstable, and even the technical problem of pulsating combustion cannot be stimulated

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