High-frequency impulse dehydrating and power supplying combination device with anti-short circuit impact self-recovering mode

Abstract

The invention relates to an anti-short circuit impact self-recovering mode high-frequency impulse dehydrating and power supplying combination device which is mainly used for solving the problems of a big control current, an unstable high-voltage electric field and long restoring time of a dehydrating electric field of the existing electrical dehydrating device. The input end of a power frequency rectifying unit (1) is respectively connected with an AC380V power supply, the output end of the power frequency rectifying unit (1) is connected with the input end of a high frequency inverter (2) which is connected with the input end of a high-frequency impulse transformer (5) through an electric reactor (3) and a current transformer (4), and the output end of the high-frequency impulse transformer (5) is connected with three inlet wire interfaces of a dehydrating container system (12) through three peak suppressers. The constant current self-recovering high-frequency impulse combination electrode dehydrating device provided by the invention has the characteristics that the functions of constant current and self recovering are achieved, the formation of a stable conductive ripple during the process of electric dehydrating of crude oil can be eliminated effectively, so that a high voltage dehydrating electric field is established stably.

Description

technical field [0001] The invention relates to the field of oil field crude oil gathering and transportation, and is used for crude oil dehydration, in particular to a short-circuit impact-resistant self-recovery high-frequency pulse dehydration power supply combination device. Background technique [0002] In the field of crude oil gathering and transportation in oil fields, electric dehydration is the final treatment link before the output of crude oil, and it is an important guarantee to ensure the export of qualified crude oil and provide qualified sewage that meets the downstream treatment conditions. At present, AC and DC composite electric dehydrators are generally used in oil fields , as the oilfield enters the stage of high water-cut production, especially after polymer flooding and ASP flooding are adopted in the oilfield, the viscosity of the produced fluid increases and the impurities carried increase, which leads to an increase in the conductivity of crud...

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Problems solved by technology

[0003] In order to solve the problems existing in the background technology such as large control current, unstable high-voltage electric field, easy short circuit between electrode plates and long recovery time of the dehydration electric field in the traditional electric dehydration, the present invention proposes a method to effectively eliminate the crude oil electric dehydration process. The formation of medium and stable conductive water ripples ensures the stability of the high-voltage dehydration electric field, and the anti-short-circuit impact self-recovery high-frequency pulse dehydration power supply combination device with constant current and self-recovery functions

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