Water-cooled anode of plasma generator

Abstract

The invention discloses a water-cooled anode of a plasma generator. A spiral inner anode with arcs passing through the central hole is arranged; the outer surface is provided with N parallelly-wound spiral water channels formed by axial thread; and the water channel is sleeved with an outer anode. Upper and lower end ring seats whose axial inner sides are provided with upper and lower backwater grooves are arranged and are axially connected with the inner anode as a whole. A sealed stainless steel outer cylinder is arranged outside the outer anode, and a backwater channel exists between the sealed stainless steel outer cylinder and the outer anode. After arc initiation of the generator, heat source arcs entering the central hole conduct electricity with the inner ring, heat is radiated tothe spiral water channels, water passes through the lower backwater groove, is subjected to secondary cooling by the backwater uplink channel, passes through the outer anode and is then discharged. Pressure cold water is introduced into the spiral water channel through an inlet pipe, an inlet and outlet ring seat and the upper backwater groove, the cold water rises axially and spirally from insideto outside radially in a spiral socket, the cooling area is greatly increased, and plus secondary cooling of the backwater, the cooling effects are excellent. Due to the N parallelly-wound spiral water channels, the cooling is uniform. Leading-in and leading-out of cold and hot water are facilitated due to the backwater grooves, and the ring seats at two ends can be cooled. The structure facilitates manufacturing, installation and maintenance. The water-cooled anode disclosed in the invention can be used in a non-transfer plasma generator, especially a high-power generator.

Description

[0001] (1) Technical field: water-cooled anode of plasma generator, the present invention relates to the structure of water-cooled anode of high-power (above 200KW) plasma generator, which belongs to the category of ion generation and spark gap (H01T). (two) background technology: [0002] A plasma generator that generates a high-temperature heat source includes the following parts: cathode assembly, anode assembly, water cooling system, air pressure system, and water pressure system. The anode is a cylindrical electric conductor, and when the cathode and anode are energized, an arc is generated and emitted at the cathode emitter, and the center hole of the anode is the arc channel. It can also be said that the arc 10A in the center hole of the anode is the only heat source for generating heat in the anode, and the anode cylinder only plays the function of conduction and heat dissipation. When the existing air-cooled plasma generator is working, the heat of the arc in the cent...

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Problems solved by technology

[0004] The water-cooled anode of the plasma generator provided by the present invention is to solve the problem that the existing air-cooled and general water-cooled anodes have high temperature and short life and cannot meet the needs of high-power plasma generators.

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