Burner for outputing thick and thin premixed gas by using small fire holes and conical tubular fire holes

Abstract

The invention relates to the field of commercial kitchen utensils, in particular to a burner for outputing thick and thin premixed gas by using small fire holes and conical tubular fire holes. According to the burner for outputing the thick and thin premixed gas by using the small fire holes and the conical tubular fire holes, the small-aperture circular fire holes and the large-aperture conical tubular fire holes are used, the premixed gas with higher concentration and the premixed gas with lower concentration are simultaneously output for secondary mixing and combustion, and the premixed gaswith the higher concentration and the premixed gas with the lower concentration complement each other with missing air and fuel gas in the combustion reaction process. Two kinds of burners are combined together, two kinds of fuel gas and air supply mixing structures and two kinds of fire hole characteristics are adopted to output two thick and thin premixed gas, and the thick and thin premixed gas is subjected to secondary mixing and combustion in the combustion reaction process. The thick and thin premixed gas burner which is not prone to being tempered and does not require secondary air supply in the combustion reaction process can be provided.

Description

technical field [0001] The invention relates to the field of commercial kitchen utensils, and more specifically relates to a burner that uses a small fire hole and a tapered tubular fire hole to output rich-lean premixed gas. Background technique [0002] Scientific experiments have confirmed: 1. The flow resistance of the premixed gas flowing in the conical pipe with a contraction angle of 6-8 degrees is small, and the loss of gas kinetic energy is small, and the larger the outlet diameter of the conical pipe, the smoother the gas circulation and the gas flow rate. The easier it is to make bigger; 2. The burner that relies on gas kinetic energy to inhale air for premixed combustion uses a smooth inner wall of the ejector, and the gas flow resistance and kinetic energy loss will be significantly smaller than the ejector with a rough inner wall; 3. The bell mouth of the ejector The absence of damper baffles will significantly reduce the resistance when the outside air is suck...

AI Technical Summary

Problems solved by technology

At present, there is no fire hole channel in the market. The air channel with a 6-8 degree conical hole is used. The wall of the ejector is smooth. The bell mouth of the main ejector is not equipped with a damper baffle. The output of the premixed gas with a large difference, the diameter of the gas outlet of the fire hole is large, and it is not easy for the flame to fall back from the fire hole to the premixed gas chamber. These features are all in a self-priming gas burner, so Design of a Burner Using Small Flame Hole and Conical Tube Flame Hole to Output Rich-lean Premixed Gas

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