Dual media atomizing combustor

Abstract

The invention relates to a dual media atomizing combustor comprising a main oil gun, a main gas nozzle, an electronic igniter, an air bellow, a combustion air cyclone and a combustion air servo regulating mechanism as well as a medium-pressure atomizing media nozzle and a fuel and atomizing media control valve. A main oil gun nozzle, the medium-pressure atomizing media nozzle and the combustion air cyclone are in a concentric structure, the main oil gun is in the center, and the medium-pressure atomizing media nozzle and the combustion air cyclone are circularly and sequentially arranged on the external circumference centering about the main oil gun which is internally provided with liquid fuel and high-pressure atomizing media so as to realize the single combustion or the mixed combustion of the liquid fuel and the gaseous fuel. The combustor with the safe interlocking functions of automatic / manual control and continuous proportional adjustment of loads and air-fuel ratio greatly improves the atomizing performance, the combustion performance and the operation and maintenance performance of the fuel and is suitable for high-volume heat-load boilers or other oil burners.

Description

technical field [0001] The invention relates to a burner. Background technique [0002] In order to save materials, reduce costs and improve thermal efficiency, in recent years, the design of steam boilers often adopts a higher volume heat load, so that the diameter and length of the combustion chamber or furnace are reduced. At present, the traditional high-pressure medium (steam / compressed air) atomizing burners at home and abroad all use a single high-pressure medium to atomize fuel oil. The outstanding disadvantage is that the shape and size of the flame are not easy to control; The mixing degree of the mist decreases, the burnout process of the oil mist increases, and the flame length increases. The above-mentioned shortcomings make the combustion flame of the traditional high-pressure medium atomizing burner unsuitable for thin and short-shaped combustion chambers or furnaces. Contents of the invention [0003] The purpose of the present invention is to provide a d...

AI Technical Summary

Problems solved by technology

At present, the traditional high-pressure medium (steam / compressed air) atomizing burners at home and abroad all use a single high-pressure medium to atomize fuel oil. The outstanding disadvantage is that the shape and size of the flame are not easy to control; The mixing degree of the mist decreases, the burnout process of the oil mist is lengthened, and the flame length increases

The above shortcomings make the combustion flame of the traditional high-pressure medium atomizing burner unsuitable for thin and short-shaped combustion chambers or furnaces

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