Multistage gas reverse swirl burner

Abstract

The invention discloses a multistage gas reverse swirl burner. The multistage gas reverse swirl burner comprises a fuel spraying pipe and an air guide barrel set; the air guide barrel set comprises afirst-stage air guide barrel, a second-stage air guide barrel and a third-stage air guide barrel, the air outlet end of the first-stage air guide barrel is provided with a flame stabilizing disc to output first-stage swirl gas, the first-stage air guide barrel is sleeved with the second-stage air guide barrel, the second-stage air guide barrel is provided with multiple second blades to output second-stage swirl gas, the first-stage swirl gas and the second-stage swirl gas are opposite in swirl direction, the second-stage air guide barrel is sleeved with the third-stage air guide barrel, the third-stage air guide barrel is provided with a porous plate to output high-speed straight-through flow gas, the fuel spraying pipe set comprises a first-stage fuel spraying pipe, a second-stage fuel spraying pipe and a third-stage fuel spraying pipe, the first-stage fuel spraying pipe is located on the first-stage air guide barrel to spray fuel to the first-stage swirl gas, the second-stage fuel spraying pipe is located on the second-stage air guide barrel to spray fuel to the second-stage swirl gas, and the third-stage fuel spraying pipe is located on the third-stage air guide barrel. The airand gas mixing degree can be greatly improved, gas mixing is more uniform, combustion is more sufficient, and pollutant emission is lower.

Description

technical field [0001] The invention relates to the field of burners, in particular to a multi-stage gas reverse swirl burner. Background technique [0002] Energy and the environment are related to the most fundamental survival issues of human society. As the industrial revolution continues to advance, energy supply shortage and environmental pollution have become the main problems in the industrial field of human society. At the same time, there is a huge waste of energy. As the key equipment in industrial furnaces, gas burners have better pollutant emission characteristics than pulverized coal burners. At the same time, the enhancement of environmental protection awareness and the improvement of environmental protection laws have made it a key issue for people to study to improve the emission characteristics of the burner, improve the combustion characteristics and make it work efficiently. Different burner structures determine the mixing mode and mixing speed of gas and...

AI Technical Summary

Problems solved by technology

It is designed to solve the problems of insufficient combustion of the burner, low utilization rate of fuel energy, reduction of energy waste and emission of pollutants after combustion.

Images