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Anti-explosive method of electric welder

A technology of electric welding machine and electric welding handle, which is applied in arc welding equipment, welding rod characteristics, welding equipment and other directions, can solve the problems of generating electric sparks, arc light of electric electrodes, and electric equipments that are easy to generate electric sparks, etc., so as to ensure safety and solve the Effects of explosion-proof problems

Inactive Publication Date: 2010-06-16
双鸭山金德工贸有限责任公司
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Problems solved by technology

[0004] In order to achieve the above object, the present invention will solve the following problems: the one is to solve the problem that electrical sparks are easily generated by electrical equipment under normal working conditions and fault conditions; It is to solve the problem of poor contact or disconnection of the wires during the welding process, which is easy to generate electric sparks

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  • Anti-explosive method of electric welder
  • Anti-explosive method of electric welder

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Embodiment Construction

[0020] Put the electrical equipment prone to electric sparks in the flameproof enclosure for explosion-proof, forming an explosion-proof electric welding machine; during the welding process, the arc generated by the electric welding rod is sealed with a high-pressure water curtain to form an explosion-proof electric welding tongs; The ground wire of the welded part adopts two-wire power supply. When one wire is disconnected, the other wire is powered to ensure the reliability of power supply. The connection between the ground wire of the welded part and the welded part uses a contact pressure sensor to monitor the contact state, forming a The welding piece grounding connector with blocking function, when the contact is not good, the sensor sends a signal, which is blocked by the protection control circuit, and the power supply of the welding handle wire and the ground wire of the welded piece is disconnected.

[0021] Implementation column 1: figure 1 This is the overall structura...

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Abstract

The invention relates to an anti-explosive method of an electric welder, which is suitable for welding large machinery equipment on working surfaces in coal mine underground excavation. The electric welder, a contactor and other electrical equipment are arranged in an explosion-isolation outer casing to isolate explosion, a high-pressure water pump and a water tank are arranged in an outer casing without explosion isolation, and a protection control circuit is arranged in the explosion-isolation outer casing. The protection control circuit comprises the gas locking protection of anti-explosive electric welding handle clippers, flow locking protection, water pressure locking protection and electric welder over-current protection. The ends of the anti-explosive electric welding holder clippers are provided with clamping mechanisms for clamping electrodes, and are also provided with a plurality of spray nozzles. During welding, a high-pressure water curtain is sprayed out of the spray nozzles, and the arc light generated by electric welding is sealed by the water curtain.

Description

Technical field [0001] The invention relates to an explosion-proof method of an electric welding machine. The explosion-proof method of the electric welding machine is suitable for welding large-scale mechanical equipment in a mining face in a coal mine. technical background [0002] At present, large-scale mechanical equipment used in underground mining face of coal mines, if the mechanical equipment is damaged, it is difficult to transport to the surface for maintenance, requiring a long time and man-hours, affecting production and causing great economic losses. Generally, underground maintenance is adopted. , Even underground electric welding, underground fire electric welding is likely to cause coal dust and gas explosion accidents. Although generally approved by the chief engineer of the mine and some management measures are taken, there is no reliable technical guarantee, which will threaten the life and safety of miners. Summary of the invention [0003] The purpose of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K9/32B23K9/10B23K9/28
Inventor 李孝杰
Owner 双鸭山金德工贸有限责任公司
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