Plasma torch of double-stage nozzle structure

Abstract

The invention discloses a plasma torch of a double-stage nozzle structure and relates to plasma equipment. The plasma torch is composed of a backseat, a cathode, a first insulating torch rack, a first nozzle, a first sleeve, a second insulating torch rack, a second nozzle and a second sleeve; the cathode is mounted at the front end of the center of the backseat, the first nozzle is mounted in the first sleeve, the second nozzle is mounted in the second sleeve, the backseat with the cathode is mounted in a rear mounting groove in the first insulating torch rack, the first sleeve with the first nozzle is mounted in a front mounting groove of the first insulating torch rack and a rear connecting slot of the second insulating torch rack, and the second sleeve with the second nozzle is mounted in a front connecting slot of the second insulating torch rack; the head of the cathode extends into a bell mouth space of the rear end of the first nozzle, and the bell mouth space of the first nozzle forms a first discharge area. Two-stage high-temperature plasma arc is generated in the plasma torch, so that heating efficiency and resolving capability of the plasma torch are improved, and application requirements on the fields of pyrolysis water hydrogen production, solid waste disposal and harmful gas treatment can be met.

Description

technical field [0001] The invention relates to plasma equipment, in particular to a nozzle structure of 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 thousa...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the shortcomings of incomplete decomposition and low heating efficiency in the existing plasma spray gun, and provide a plasma spray gun with a two-stage nozzle structure, so that the plasma spray gun can reach a higher processing temperature and improve the efficiency of the plasma. The heating efficiency and decomposition ability of the body spray gun can meet the application requirements in the fields of pyrolysis of water for hydrogen production, solid waste disposal and harmful gas treatment

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