Divergent porous medium burner

Abstract

The invention discloses a divergent porous medium burner. The burner comprises a shell, a porous medium and baffle bricks. The burning end of the shell is of a cone structure or a tetragonal pyramid structure. The air inlet end of the shell is of a cylinder structure or a tetragonal prism structure. The porous medium is charged into a burning end shell body of the shell. The baffle bricks are located between the porous medium and the air inlet end of the shell. An air inlet is formed in the shell side wall of the air inlet end of the shell. A fuel gas inlet is formed in the wall surface of theshell axis end of the air inlet end of the shell. The gas inlet direction of the fuel gas inlet is perpendicular to the air inlet direction of the air inlet. The taper range of the burning end of theshell is 0-45 degrees. The porous medium has four charging modes including the uniform charging mode, the axial step charging mode, the radial step charging mode and the axial tapered charging mode.By means of the divergent porous medium burner provided by the invention, the phenomena that flames are not uniformly distributed and are unstable can be effectively avoided, and the burner has the characteristics of large power regulating range, more thorough burning and higher burning efficiency.

Description

technical field [0001] The invention belongs to the technical field of burners, in particular to a gradually expanding porous media burner. Background technique [0002] With the development of the economy, energy and environmental issues have increasingly become the focus of attention. Due to the continuous reduction of fossil fuels, in order to establish a sustainable economic model, improve energy structure and energy consumption patterns, and improve energy efficiency, it is necessary Make full use of various low calorific value gases in industrial production and energy production to achieve efficient and clean utilization of conventional energy. However, the combustible components of low-calorific-value gas are thin, and it is difficult to effectively use conventional combustion technology. How to realize the effective combustion of low-calorific-value gas and reduce the environmental problems caused by direct emissions has always been an urgent problem to be solved. ...

AI Technical Summary

Problems solved by technology

However, the combustible components of low-calorific-value gas are thin, and it is difficult to effectively use conventional combustion technology. How to realize the effective combustion of low-calorific-value gas and reduce the environmental problems caused by direct emissions has always been an urgent problem to be solved.

[0004] There are many types of porous media burners, but they are basically cylindrical or cuboid-shaped burners with the same width in the axial direction. However, it has been found in practice that burners with such structures have uneven flame distribution. And the phenomenon of unstable flame will cause steep temperature gradient near the flame surface, uneven temperature distribution, high local temperature and incomplete combustion. Burner service life

Images