Ignition gun

Abstract

The invention discloses an ignition gun. The ignition gun comprises a conveying pipe and a nozzle, wherein a proportioner is arranged at one end of the conveying pipe, the other end of the conveying pipe is detachably connected with the nozzle, and the proportioner comprises transmission mechanisms, an inlet end cover and a proportioner body used for mounting the transmission mechanisms and the inlet end cover; a partition plate is arranged in the middle of a cavity of the proportioner body, and the partition plate partitions the cavity of the proportioner body into two conveying cavities; the first transmission mechanism and the second transmission mechanism are arranged in two conveying cavities of the proportioner body separately; the cavity volume ratio of the two conveying cavities except the volume occupied by the transmission mechanisms is the air combustion ratio; a through hole is formed in the partition plate; and a second transmission shaft on the second transmission mechanism penetrates through the through hole to be coaxially connected with the first transmission mechanism. The volume of the conveying cavities is controlled by changing the sizes of the two transmission mechanisms, so that the precise volume ratio of two gases is achieved, and the proportion accuracy of fuel and air is achieved.

Description

technical field [0001] The invention relates to the field of gas combustion ignition, more specifically, it relates to an ignition gun. Background technique [0002] Burners are an important part of industrial boilers, and ignition guns are an important component of industrial burners. At present, the ignition guns in use mainly include two types: the type with combustion air and the type without combustion air. The ignition gun with combustion-supporting air has stronger adaptability to changes in ambient gas composition. But the ignition gun with combustion air generally still has the following problems: (1) it is difficult to achieve the exact ratio of combustion air and gas fuel; (2) it is difficult to ignite when the mixed gas flow rate in the ignition gun is too fast; (3) the ignition gun When the flow rate of the internal mixed gas is too slow, the anti-interference ability of the flame after ignition is poor. [0003] Chinese patent application number 201410355035...

AI Technical Summary

Problems solved by technology

But the ignition gun with combustion air generally still has the following problems: (1) it is difficult to achieve the exact ratio of combustion air and gas fuel; (2) it is difficult to ignite when the mixed gas flow rate in the ignition gun is too fast; (3) the ignition gun When the flow rate of the internal mixed gas is too slow, the anti-interference ability of the flame after ignition is poor

However, the problem of accurate ratio of combustion-supporting air and gas fuel has not been solved

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