Handheld insulative discharging combustible gas igniter

Abstract

The invention discloses a handheld insulative discharging combustible gas igniter. A fastening nut, a pointed-end discharging electrode and a splicing nut are positioned at the top end of a circular-tube conductive wall, and an ignition window is arranged adjacent to the pointed-end discharging electrode on the external wall at the upper end of the circular-tube conductive wall; a core pin is arranged on the longitudinal central line of the circular-tube conductive wall; a positioning support tube, an upper sealing positioning layer, an insulating layer, a lower sealing positioning layer and a core pin positioning support post are sequentially sheathed from bottom to top between the external wall of the core pin and the internal wall of the circular-tube conductive wall; and a connection plate is fixedly connected with the external wall at the lower end of the circular-tube conductive wall. An operation button and a battery are connected in series at the input end of a boosting inverted module, and a first output wire and a second output wire connected with the output end of the boosting inverted module are respectively connected with the lower end of the circular-tube conductive wall and the lower end of the core pin. The handheld insulative discharging combustible gas igniter has 100% of igniting success rate; and compared with that of the traditional igniter, the service life is prolonged by 5 to 10 times. The handheld insulative discharging combustible gas igniter is safe and reliable, and is the reliable tool for manually igniting various industrial fuel-gas heating (soaking) furnaces.

Description

technical field [0001] The invention relates to an igniter, in particular to a hand-held insulating discharge combustible gas igniter for various industrial furnaces based on manual ignition using combustible gas as fuel. Background technique [0002] The igniters used in various industrial furnaces, especially in the compact strip steel production line (that is, CSP production line, Compact strip production) and (homogeneous) heating furnaces include combustible gas igniters and their imitations brought randomly from abroad. There are also civilian electronic igniters, etc. These igniters that have been used are difficult to meet production needs. The main problem is that unreliable ignition often leads to gas explosion accidents at the ignition port, damages the heat insulation layer near the ignition port, and reduces fuel consumption. ) thermal insulation performance, increase gas consumption, and sometimes even endanger the safety of people and equipment; each ignition ...

AI Technical Summary

Problems solved by technology

[0002] The igniters used in various industrial furnaces, especially in the compact strip steel production line (that is, CSP production line, Compact strip production) and (homogeneous) heating furnaces include combustible gas igniters and their imitations brought randomly from abroad. There are also civilian electronic igniters, etc. These igniters that have been used are difficult to meet production needs. The main problem is that unreliable ignition often leads to gas explosion accidents at the ignition port, damages the heat insulation layer near the ignition port, and reduces fuel consumption. ) thermal insulation performance, increase gas consumption, and sometimes even endanger the safety of people and equipment; each ignition must be carried out 15 to 25 minutes in advance, wasting gas and blower energy consumption; greatly increasing the labor intensity of operators and maintenance personnel

The existence of these problems is almost all concentrated on the fact that the design of the discharge mechanism cannot meet the needs of actual production, and the failure rate exceeds 85%.

Such a high number of failures is mainly due to the fact that the designer did not take into account factors such as dirty dust, acidic and harmful gases such as sulfur dioxide (SO2) and humid air on the job site, which led to the discharge mechanism of the heating (homogeneous) furnace igniter after a period of use. The insulation effect between the outer conductive stainless steel tube and the central conductive mandrel of the steel pipe decreases rapidly, which increases the leakage current between the outer conductive (shell) stainless steel tube of the discharge mechanism and the central (conductive) mandrel, resulting in The voltage between the opposite discharge needles drops below the breakdown voltage, an effective ignition arc cannot be generated, and the igniter is damaged and cannot be ignited

For example, the main problem of the igniter brought randomly from the CSP production line equipment is that the insulation problem between the core needle and the stainless steel pipe wall is not well resolved. The support body of the core needle head is a square structure, so that the core needle and the stainless steel pipe wall The gap of the igniter is connected to the atmosphere. After the igniter is used for a period of time, dust, moisture and acidic harmful gas enter the tube and damage the igniter.

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