High-energy igniter oil gun restoring method

Abstract

The invention relates to the field of high-energy igniter maintenance, in particular to a high-energy igniter oil gun restoring method. The high-energy igniter oil gun restoring method comprises the following steps that materials are selected, wherein weld wires matched with a welding base material of the high-energy igniter oil gun are selected; clearing and pairing are carried out, wherein the welding portions of copper ends and steel connectors of the high-energy igniter oil gun are cleared, and the copper ends and the steel connectors are paired; welding is carried out, wherein argon tungsten-arc welding is adopted for welding the copper ends and the steel connectors, the diameter of the weld wires is 2.2-2.6 mm, the welding speed is 40-60 mm / min, the welding current is 50-80 A, arc voltage is 12-15 V, and argon flow is 10-15 L / min. According to the high-energy igniter oil gun restoring method, argon tungsten-arc welding is adopted for welding, suitable welding parameters are selected, and under the circumstances that enough heat is input to the welding portions of the copper end and the welding quality is ensured, the situation that the heat burns through pipe walls or scald the copper ends of a lining can be effectively prevented.

Description

technical field [0001] The invention relates to the field of maintenance of high-energy igniters, in particular to a method for repairing an oil gun of a high-energy igniter. Background technique [0002] The high-energy igniter oil gun device is mainly composed of gun head, gun core, inner tube, outer tube, insulating secondary sleeve, high-voltage shielded cable, oil connector, gas connector and plug. It can be directly used to ignite natural gas, liquefied petroleum gas, kerosene, diesel, heavy oil, residual oil, etc. The high-energy ignition gun has strong anti-pollution ability, can ignite in water, is suitable for various complex environments, and is widely used in thermal power generation industry. The end of the high-voltage shielded cable heat dissipation shell and the outer pipe joint of the oil gun are brass on one side, and ordinary low-carbon steel on the other. The welding of copper and steel is more difficult than the welding of steel and steel, and copper a...

AI Technical Summary

Problems solved by technology

In the existing copper-steel welding, due to the good thermal conductivity of the copper material, in order to enable the copper side to obtain sufficient heat and prevent defects in the weld, a large welding heat input specification should be adopted, but for high-energy igniter oil guns In other words, the wall thickness of the copper pipe and steel pipe is relatively thin (<2.0mm), and there is an insulating secondary sleeve hose inside. Large heat input can easily burn through the pipe wall or scald the inner insulating secondary sleeve hose. This is a difficult point in the repair of high-energy igniter oil guns

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