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Special power supply device for direct current smelting

A special power supply and rectifier technology, which is applied to the output power conversion device, the circuit arrangement on the support structure, and the conversion of AC power input to DC power output, etc., to achieve good results, avoid hidden troubles, and improve thermal efficiency.

Active Publication Date: 2016-04-27
广西桂变整流科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims at the problem that it is difficult to effectively protect and control the sudden change of current in the production process of the DC smelting furnace in the existing DC smelting power supply equipment. Special power supply device for DC smelting with difficult power supply equipment

Method used

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  • Special power supply device for direct current smelting
  • Special power supply device for direct current smelting
  • Special power supply device for direct current smelting

Examples

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Embodiment 1

[0030] Such as Figure 1-2 , the special power supply device for direct current smelting, including the whole machine box 1, the whole machine box 1 includes a "7" shaped transformer oil chamber 5 and a "1" shaped rectifier oil chamber 7, the transformer oil chamber 5 and the rectifier oil chamber The cavity 7 forms an overall rectangle. The transformer oil cavity 5 is provided with a transformer 4 and a current sensing limiter 8, and the transformer 4 and the current sensing limiter 8

[0031] Connected in series, the rectifier 6 is installed in the rectifier oil cavity 7, the low-voltage output end of the transformer 4 is connected to the bus bar of the rectifier 6 component, the output end of the bus bar is connected through the DC positive and negative conductive copper bar, and the DC positive and negative copper bar The other end can be directly connected with the anode and cathode of DC smelting through the whole machine box body 1. The outer side of the box body 1 of...

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Abstract

The invention discloses a special power supply device for direct current smelting. The special power supply device comprises an overall box body. The special power supply device is characterized in that the overall box body comprises a transformer and a rectifier, wherein the transformer and the rectifier are arranged in a communicated oil chamber respectively; a forced oil-circulated cooler capable of enabling an oil body to flow circularly is arranged at the outer side of the oil chamber; the transformer is connected with a current induction limiter; the current induction limiter is used for limiting the current magnitude of the transformer; and an output end connected with a direct current smelting furnace is also arranged at the side part of the overall box body.

Description

technical field [0001] The invention relates to an integrated electric current device, in particular to a special special power supply device for DC smelting. Background technique [0002] DC electric arc furnace is an important trend in the development of modern electric furnace technology. In 1885, ASEA Company of Sweden designed the world's first DC electric arc furnace. Due to the limitations of components and related technical equipment, DC electric arc furnaces have not been widely used in the history of metallurgy in the world. The three-phase AC electric arc furnace currently used for steelmaking and iron alloy making has become the leading equipment for electric arc furnace metallurgy technology. However, while the metallurgical technology of AC electric arc furnace is developing vigorously, some insurmountable shortcomings of AC electric arc furnace are gradually exposed. AC electric arc furnace has poor arc stability. Whenever the current crosses zero, the arc w...

Claims

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Application Information

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IPC IPC(8): H02M1/32H02M7/00H05K7/02H05K7/20
CPCH02M1/32H02M7/003H05K7/02H05K7/20218H02M1/0038
Inventor 龙国剑
Owner 广西桂变整流科技有限责任公司
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