Double-pole electric arc plasma torch used for water pyrolysis

Abstract

The invention relates to a plasma torch, in particular to a double-pole electric arc plasma torch used for water pyrolysis. The double-pole electric arc plasma torch is composed of a backseat, a cathode, a spiral fluid director, a middle electrode assembly, an insulating connecting piece and an anode assembly. A water supply flow guide pipe and a cathode connecting rod are arranged in a revolution body of the backseat; the cathode is composed of a microporous membrane cathode head and a cathode sleeve, and micropores of the microporous membrane cathode head form a filtering channel for water molecules; the middle electrode assembly comprises a middle electrode and an annular electrode; the cathode is connected to the front end of the cathode connecting rod, the spiral fluid director is installed on the backseat, the middle electrode assembly is connected between the spiral fluid director and the insulating connecting piece, and an anode sleeve and an anode are installed at the front end of the insulating connecting piece; the head of the cathode enters the entrance space in the rear end of the middle electrode, a first discharging area is formed by the entrance space in the rear end of the middle electrode, and a second discharging area is formed by the space between the annular electrode and the rear end of the anode. The higher processing temperature of the plasma torch can be reached, and the heating efficiency and the decomposition capacity of the plasma torch are improved.

Description

technical field [0001] The invention relates to plasma equipment, in particular to a plasma spray gun. Background technique [0002] At present, plasma technology has been widely used, industrially used in plasma ignition, plasma spraying, metal smelting, plasma heating to manufacture nanomaterials, cutting, waste incineration and waste treatment, etc. The plasma treatment method is very different from the general method. Plasma is a state formed under the ionosphere or discharge phenomenon. With the discharge phenomenon, excited atoms, excited molecules, dissociated atoms, free atomic groups, Active chemicals of groups of atoms or molecular ions and their reactions resulting from collisions with other chemicals. In the plasma generator, the discharge effect causes the working gas molecules to lose the outer electrons and form an ion state, which generates high temperature through mutual collision, and the temperature can reach more than tens of thousands of degrees. [00...

AI Technical Summary

Problems solved by technology

[0004] The cathode of the plasma torch is the part that emits electrons. Due to the impact of the current and the high temperature of tens of thousands of degrees, the head of the cathode is easily ablated and damaged, which not only affects the production, but also increases the production cost.

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