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Direct-current arc plasma power supply and system

A plasma and DC arc technology, which is applied in the direction of converting AC power input to DC power output, electrical components, and output power conversion devices, etc., can solve the problem of inability to meet high voltage requirements during arc starting, and achieve high power conversion efficiency. , the effect of increasing the high voltage

Active Publication Date: 2020-04-10
CHINA PETROCHEMICAL CORP +2
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0007] The present invention provides a DC arc plasma power supply, which is used to solve the problem that the DC arc plasma power supply in the prior art cannot meet the high voltage requirement during arcing; the present invention also provides a DC arc plasma system, which is used To solve the problem that the DC arc plasma power supply in the DC arc plasma system in the prior art cannot meet the high voltage demand at the time of arcing

Method used

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  • Direct-current arc plasma power supply and system
  • Direct-current arc plasma power supply and system
  • Direct-current arc plasma power supply and system

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Embodiment Construction

[0021] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0022] Example of DC arc plasma system:

[0023] This embodiment provides a DC arc plasma system, the system includes a DC arc plasma power supply (hereinafter referred to as the power supply) and an arcing load, the power supply output end of the power supply is connected to the arcing load, so that the DC arc plasma power supply generates The AC signal is sent to both ends of the arcing load, causing the non-conductive gas to break down, thereby forming a conductive channel to generate arc discharge. The arcing load here can be a plasma torch or a graphite electrode.

[0024] Its structural connection diagram is as follows figure 2 shown.

[0025] like figure 2 As shown, the power supply includes an input rectifier module, an inverter modul...

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Abstract

The invention relates to a direct-current arc plasma power supply and system. The power supply and the system comprise an input rectification module, an inversion module, a high-frequency voltage transformation module, an output rectification module and a power supply output end which are connected in sequence, the power supply and the system further comprises a voltage compensation module, the compensation voltage output end of the voltage compensation module is connected in series with the direct current end of the output rectification module; the compensation voltage output end of the voltage compensation module and the direct current end of the output rectification module are connected in series, then the voltage output end is connected with the power supply output end, and when the direct current end of the output rectification module outputs a direct current arcing voltage, the voltage compensation module outputs a compensation voltage in the same direction as the direct currentarcing voltage. According to the invention, the voltage compensation module can increase the high voltage required by arcing, and guarantees the reliable completion of arc discharge.

Description

technical field [0001] The invention belongs to the technical field of DC plasma arc, and in particular relates to a DC arc plasma power supply and a system. Background technique [0002] Direct current flows through the gas, so that the original non-conductive gas is broken down, and a conductive channel is formed between the two poles, thereby generating arc discharge, that is, DC arc plasma. DC arc plasma is generally realized by plasma torch or graphite electrode. Due to the characteristics of high temperature and energy concentration, DC arc plasma has been widely used in many fields. At present, in the mechanical processing industry, it is often used in welding, cutting, spraying and other processing fields; in the metallurgical industry, it is mainly used in metal melting and remelting, heat preservation, new smelting processes and other processes; in the chemical industry, it is It is used in processes such as pyrolysis of coal, production of acetylene, and thin fi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02M7/217H02M7/5387H02M1/14H02M1/12
CPCH02M1/126H02M1/143H02M7/217H02M7/5387
Inventor 赵永刚冉利民李功强李健伟华新军陈婵娟赵景吉倩倩王磊杜娟
Owner CHINA PETROCHEMICAL CORP
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