Three-phase two-pulse-wave high-power pulse current power supply for electrolytic cells and power supplying method

Abstract

The invention discloses a three-phase two-pulse-wave high-power pulse current power supply for electrolytic cells and a power supplying method. The three-phase two-pulse-wave high-power pulse current power supply for the electrolytic cells comprises a three-phase voltage regulation transformer, a three-phase induction filtering and rectifying transformer, a three-phase induction filter, a same-phase inverse-parallel-connection alternating current bus bar, single-phase rectifying cabinets, same-phase inverse-parallel-connection direct current bus bars and a unified controller. The three-phase voltage regulation transformer, the three-phase induction filtering and rectifying transformer and the same-phase inverse-parallel-connection alternating current bus bar are serially connected in sequence, output ends of the same-phase inverse-parallel-connection alternating current bus bar are respectively connected with input ends of the single-phase rectifying cabinets, output ends of the single-phase rectifying cabinets are connected with positive and negative electrodes of the electrolytic cells through the same-phase inverse-parallel-connection direct current bus bars, and the unified controller is connected with control ends of the single-phase rectifying cabinets. Two-pulse-wave high-power pulse current power source adjustable in duty ratio can be supplied to the electrolytic cells, thereby the electrolytic cells can be guaranteed in the most efficient electrolysis state and energy consumption of electrolysis is greatly reduced.

Description

technical field [0001] The invention relates to an electrolysis power supply in the metallurgical industry, in particular to a three-phase two-pulse high-power pulse current power supply and a power supply method for an electrolytic cell. Background technique [0002] At present, electrolytic manganese, electrolytic zinc and other industries use multi-pulse direct current electrolysis technology, that is, three-phase alternating current is rectified into 6-pulse or 12-pulse direct current through a three-phase rectifier bridge, and the rectified direct current is directly connected to the electrolytic tank for electrolysis. DC electrolytic manganese has the problems of low electrolytic current efficiency and high power consumption per ton of electrolytic manganese, and its DC power consumption can reach 5800~6100 kW·h / t. [0003] According to relevant literature, in the pulse electrolysis process, the electrolysis efficiency is affected by the charge transfer and surface d...

AI Technical Summary

Problems solved by technology

At present, there is no high-power pulse power supply in my country's nonferrous metallurgical electrolysis industry, which seriously restricts the improvement of electrolysis current efficiency in the electrolysis industry of manganese and zinc.

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