Inner-electric-arc plasma torch for gasifiers

Abstract

The invention discloses an inner-electric-arc plasma torch for gasifiers and relates to plasma heating equipment. The inner-electric-arc plasma torch is mainly composed of a front torch body, a rear seat, a first electrode and a fourth electrode, an arc cavity and a cooling water jacket are structured in the front torch body, an inlet and a compression nozzle are respectively arranged in two ends of the arc cavity, the cooling water jacket is arranged on the outer side of the arc cavity, and the head of the first electrode is arranged out of the arc cavity of the front torch body and is close to the inlet; the head of the fourth electrode (8) extends to the compression nozzle side in the arc cavity through the compression nozzle, a metal component at the position of the compression nozzle forms a third electrode, a second annular discharging surface is arranged on the third electrode, a metal component at the position of the inlet forms a second electrode, and a first annular discharging surface is arranged on the second electrode; or the head of the fourth electrode further extends to the arc cavity from the compression nozzle and is close to the inlet, and the metal component at the position of the inlet forms an auxiliary electrode. By the inner-electric-arc plasma torch, water vapor can be heated and decomposed in the arc cavity, energy is concentrated on water molecules, and the water molecules are easier to decompose.

Description

technical field [0001] The invention relates to electric heating equipment, in particular to a plasma heating equipment. 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, garbage incineration and waste treatment, etc. In recent years, the technology of using plasma to treat dangerous and harmful wastes and household garbage has developed rapidly. The plasma treatment method is quite different from the general incineration method. This state, accompanied by the discharge phenomenon, will generate active chemicals of excited atoms, excited molecules, dissociated atoms, free atomic groups, atomic or molecular ion groups, and their collisions with other chemical substances. 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 t...

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Problems solved by technology

[0007] The purpose of the present invention is to overcome the low efficiency and low water molecule decomposition rate shortcomings of the existing plasma spray gun, design and manufacture a kind of internal arc plasma spray gun that can improve the heating efficiency of water molecules and improve the water molecule decomposition rate, It is used in coal gasification equipment, waste biomass gasification equipment or pyrolysis water hydrogen production equipment. After popularization and application, it can overcome the problems of low gasification rate, large coal resource consumption and emission caused by direct use of water vapor as gasification agent. There are many greenhouse gases and the disadvantages of low-quality synthetic gas produced, so as to reduce the consumption of coal resources and reduce greenhouse gas emissions

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