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Electric desalting and dehydrating device, and electric desalting and dehydrating method

A technology of electric desalination and dehydration and electrode plate, applied in the field of electric desalination and dehydration, can solve the problems of poor electric desalination and dehydration, the extra space occupied by the reverse water injection pipe, etc., to achieve the effect of improving the effect, uniform flow and slow flow rate

Active Publication Date: 2015-03-25
CHINA PETROLEUM & CHEM CORP +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an electric desalination dehydrator and an electric desalination dehydration method to solve the problems existing in the existing electric desalination and dehydration technology that the effect of electric desalination and dehydration is not good, and the extra space occupied by the reverse water injection pipe is relatively large.

Method used

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  • Electric desalting and dehydrating device, and electric desalting and dehydrating method
  • Electric desalting and dehydrating device, and electric desalting and dehydrating method
  • Electric desalting and dehydrating device, and electric desalting and dehydrating method

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Embodiment Construction

[0017] see figure 1 , figure 2 , Figure 5 with Image 6 , The electric desalination dehydrator of the present invention is provided with a horizontal tank body 5 and a transformer 8 . The bottom of the tank body 5 is provided with an inlet pipe 6 and a drain pipe 4, and the top of the tank body 5 is provided with an oil outlet pipe 7. Two or three layers of electrode plates are horizontally arranged in the tank body 5, and the electrode plates are horizontal electrode plates. The inlet pipe 6 and the oil outlet pipe 7 are usually arranged in the middle of the axial length of the tank body 5; The upper collector 71 is connected. The inlet of the inlet pipe 6 is connected with the oil inlet pipe 14, and the oil inlet pipe 14 is provided with a mixer 11 . Distributor 61 and collector 71 all can use various commonly used types, figure 1 , figure 2 , Figure 5 with Image 6 All shown are tubular. Mixer 11 can use various commonly used mixers, such as SL type, SK type ...

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Abstract

The invention discloses an electric desalting and dehydrating device, and an electric desalting and dehydrating method. With the device and the method, problems such as poor electric desalting and dehydrating effects and high additional spatial height occupation of reverse water injection pipe of existing electric desalting and dehydrating technologies are solved. According to the electric desalting and dehydrating device provided by the invention, 2 or 3 layers of electrode plates are horizontally arranged in a tank body (5), wherein one layer is a water spray electrode plate (2). Along an axial direction of the tank body, a main pipe (21) is arranged on the water spray electrode plate. Branched pipes (22) and electrode rods (24) are arranged on two sides of the main pipe. Nozzles are arranged on the bottoms of the branched pipes. When 3 layers of electrode plates are arranged in the tank body, the water spray electrode plate is arranged on the middle layer or the lower layer. When 2 layers of electrode plates are arranged in the tank body, the water spray electrode plate is arranged on the upper layer. The invention also discloses an electric desalting and dehydrating method adopting the electric desalting and dehydrating device. The device and the method are mainly used in oil fields and oil refineries for removing salt and water contained in raw oil.

Description

technical field [0001] The invention relates to an electric desalination dehydrator used in oil fields and oil refineries for removing salt and water in raw oil, and an electric desalination and dehydration method. Background technique [0002] Raw oil (referring to crude oil or its distillate oil) contains salt, which will cause corrosion of processing equipment and also have a bad effect on the activity of catalysts (such as catalytic cracking catalysts). Therefore, the desalination of raw oil has become an indispensable link in its processing. Desalination of raw oil generally adopts water washing method, the main process is: add low salt water (preferably fresh water, demineralized water is better) to the raw oil and mix thoroughly to make the original salt water, sediment and / or crystallization in the raw oil The salt is diluted or dissolved, and then as much water as possible is separated and discharged in the electric desalination dehydrator, and the salt dissolved i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G33/02C10G32/02
Inventor 刘家国崔新安汪实彬袁海欣李兵兵刘英
Owner CHINA PETROLEUM & CHEM CORP
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