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Anode for non-transferred arc plasma torch and plasma torch

A technology of plasma torch and arc plasma, which is applied in the field of anode and plasma torch of non-transferred arc plasma torch, and achieves the effects of simplified structure design, volume reduction and structure simplification

Inactive Publication Date: 2010-04-28
UNIV OF SCI & TECH OF CHINA +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It is still difficult to have a more comprehensive high-performance non-transferred arc plasma torch in the existing technology

Method used

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  • Anode for non-transferred arc plasma torch and plasma torch
  • Anode for non-transferred arc plasma torch and plasma torch
  • Anode for non-transferred arc plasma torch and plasma torch

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Embodiment Construction

[0034] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0035] attached figure 2 The basic structure of an application example of the anode of the non-transferred arc plasma torch of the present invention shown in Fig. 4 composition. The inner hole of the anode assembly starts from the gas inlet port ( figure 2 Indicated by arrow 11) to the outlet port ( figure 2 (shown by the middle arrow 14) is divided into the gas guide section IG, the stable arc section SA of the arc channel 30, the spoiler section SP and the anode nozzle section AN. The cyclone 1 and the cathode 2 are arranged in ...

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Abstract

The invention relates to an anode for an arc plasma torch and a non-transferred arc plasma torch with the anode. The anode comprises a stable arc section and an anode nozzle section which have evenly varied diameters, a burble section which is connected with the two sections and is provided with a groove with increasing diameter, wherein an insulating material is filled in the burble section. The plasma torch comprises a swirler, a cathode, the anode and a cathode-anode isolation sleeve which are arranged coaxially. Working gas flows into the stable arc section by rotation of the swirler, and restricts arc in an axle center position stably; the burble section ensures that air flow generates high frequency turbulence to drive an arc stream to swing in high frequency randomly and constantly impacts the inlet side of the anode nozzle; and the anode arc root moves quickly under the action of high speed air flow. The non-transferred arc plasma torch can obviously improve the arc voltage, the jump frequency and the moving speed of the anode arc root, reduces heat consumption, has the characteristics of high power, low electrode loss rate, high heat conversion efficiency, wide operation parameter range, small arc voltage fluctuation and the like, and is particularly suitable for gas heating.

Description

technical field [0001] The invention relates to an anode of a non-transferred arc plasma torch for heating a gas and a non-transferred arc plasma torch having such an anode. Background technique [0002] DC arc plasma torch is divided into two basic forms: transferred arc and non-transferred arc: when the anode and cathode of the arc are not on the same plasma torch body, it is a transferred arc plasma torch; when the anode and cathode of the arc are located on the same When on the plasma torch body it is a non-transferred arc plasma torch (USP 2922869). The non-transferred arc plasma torch relies on the arc discharge in the plasma torch to generate plasma jet or high temperature gas jet, and then use it again, such as high temperature spraying, metallurgical heating, material surface treatment, chemical material production, auxiliary combustion, waste regeneration, etc. Wait. The bottleneck limiting the use of arc plasma torches is mainly that the plasma torch electrode l...

Claims

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Application Information

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IPC IPC(8): H05H1/34
Inventor 夏维东陈佺刘明侯符仲恩俞民
Owner UNIV OF SCI & TECH OF CHINA
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