Novel high-speed electro-desalting power supply

Abstract

The invention discloses a novel high-speed electro-desalting power supply, belonging to the field of electric dehydration of crude oil in oil fields and electro-desalination of crude oil in oil refineries. The device comprises a transformer, a rectifier, silicon controlled, a silicon controlled controller and a PLC (programmable logic controller) control system, wherein the transformer comprises a primary current transmitter, a primary voltage transmitter, a transformer primary coil, a transformer secondary coil a and a transformer secondary coil b. The novel high-speed electro-desalting power supply provided by the invention is provided with a low-impedance coil, the primary current transmitter and the primary voltage transmitter feed back the practical running current and voltage of the transformer to the PLC control system; the PLC control system automatically outputs signals to the silicon controlled controller according to the set transformer current and voltage; the silicon controlled controller achieves the purposes of energy conservation and consumption reduction by regulating the conduction angle of the silicon controlled; and then, the transformer secondary coil a and the transformer secondary coil b respectively output alternating current and direct current to a battery lead plate in a tank body to form an alternating current field and a direct current field, thus quickening the liquid drop accumulation and sedimentation speed, and improving the efficiency of processing crude oil by utilizing an electro-desalting dehydrator.

Description

technical field [0001] The invention belongs to the fields of electric dehydration of crude oil in oilfields and electric desalination of crude oil in oil refineries, and in particular relates to a power supply used for high-speed electric desalination equipment in the petrochemical industry. Background technique [0002] With the rapid development of the world economy, the crude oil refining business is also developing rapidly, and the processing capacity of the refinery is also increasing. The high-speed electric desalination technology has been widely used. Increase, the transformers currently used include AC desalination transformer (patent number: 97200623.0); AC and DC desalination transformer (patent number: 93246305.3); high-speed electric desalination transformer (patent number: 01201736.1), they are all 100% high impedance transformers, The purpose of designing 100% high impedance is to limit the primary current of the transformer when the secondary side of the ele...

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Problems solved by technology

[0004] From this point of view, the 100% full-impedance rectifier transformer used in the existing electric desalination equipment not only consumes a lot of electric energy, but also greatly reduces the effect of electric desalination and electric dehydration on crude oil

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