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Electrostatic coalescence crude oil dehydrator

A technology of crude oil dehydration and electrostatic coalescence, which is applied in the direction of electricity/magnetic dehydration/emulsification, etc., can solve the problems of high water content in crude oil and difficult maintenance of transformers, and achieve the effects of enhancing the coalescence effect, easy maintenance, and preventing tripping

Active Publication Date: 2014-06-25
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide an electrostatic coalescence crude oil dehydrator to solve the problems existing in the existing electrostatic coalescence crude oil dehydrator that the water content of the dehydrated crude oil is high and the transformer is difficult to maintain when it fails

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  • Electrostatic coalescence crude oil dehydrator
  • Electrostatic coalescence crude oil dehydrator
  • Electrostatic coalescence crude oil dehydrator

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Embodiment Construction

[0015] see figure 1 , The electrostatic coalescence crude oil dehydrator (abbreviated as crude oil dehydrator) of the present invention is provided with a horizontal cylindrical tank body 1, and a weir plate 6 is arranged in the tank body 1. The inside of the tank body 1 is divided into a first chamber and a second chamber. The first chamber is provided with an oil inlet pipe 2 , a first drain pipe 41 , an insulating support 5 , a first electrode 70 , and a first transformer 31 . The first electrode 70 is composed of a vertically suspended electrode piece with an insulating layer, and the top of the electrode piece is fixed on the insulating support 5 ; the second chamber is provided with an oil outlet pipe 11 . The above features are basically the same as the existing crude oil dehydrator. Wherein, the oil inlet pipe 2 is connected to the top of the tank body 1 , and the bottom of the oil inlet pipe 2 is provided with a first distributor 21 . Oil inlet pipe 2 can also be c...

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Abstract

The invention discloses an electrostatic coalescence crude oil dehydrator to solve problems of high water content in dehydrated crude oil and the like existing in present crude oil dehydrators. The crude oil dehydrator of the invention is characterized in that the inside of a tank (1) is divided in to two chambers; the first chamber is provided with an insulation support (5), first electrodes (70) and a first transformer (31); electrode members in the first electrodes are vertically-suspended cylindrical electrodes (7); each of the cylindrical electrodes (7) comprises a metal electrode and an insulation layer arranged on the outer surface of the metal electrode, the cylindrical electrodes (7) are arranged on a horizontal plane in a square grid lattice mode, each horizontally or vertically spaced cylindrical electrode is grounded, and the other ungrounded cylindrical electrodes are powered up; the second chamber is provided with a second electrode (9) and a second transformer (32); and the first transformer and the second transformer are pulse transformers and are arranged on the outside of the tank. The crude oil dehydrator is mainly used for dehydrating crude oil which is exploited from offshore and land oil fields, and has a high water content or is severely emulsified.

Description

technical field [0001] The invention relates to an electrostatic coalescence crude oil dehydrator, which is used for removing water contained in crude oil. Background technique [0002] The use of electrostatic coalescence crude oil dehydrator to remove water contained in crude oil is a common method in the petroleum industry. The oil-water emulsion usually flows vertically or horizontally in the tank of the crude oil dehydrator; when flowing through the electric field formed by the electrodes, the water droplets will be affected by dipole coalescence force, electrophoretic force and shock coalescence force. Small water droplets will attract each other and coalesce into larger water droplets, relying on the oil-water density difference and gravity to settle to the bottom of the tank to achieve the purpose of oil-water separation. Commonly used power supply methods for crude oil dehydrators include DC, AC, and DC pulse. When dealing with crude oil with high water content, i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G33/02
Inventor 崔新安王春升虎锐彭松梓李春贤郑晓鹏
Owner CHINA PETROLEUM & CHEM CORP
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