Desalination and dehydration treatment apparatus for crude oil pretreatment

Abstract

The invention discloses desalination and dehydration treatment apparatus for crude oil pretreatment. The apparatus comprises a tank body; the bottom of the tank body is provided with a base seat, oneside of the tank body is provided with an input pipe, the upper part of the tank body is provided with an output pipe, the bottom of the tank body is further provided with a water outlet pipe, and theupper part of the tank body is provided with a plurality of reactant pipes; one three-way pipe is arranged between two adjacent reactant pipes, and each three-way pipe is provided with one regulatingdevice; and a plurality of positive plates and negative plates are arranged in the tank body, the positive plates and the negative plates are arranged in a staggered manner, and two ends of each positive plate and each negative plate are separately connected with one energizing shaft. The apparatus disclosed by the invention has simple operation, and can realize a plurality of electrolysis desalination and dehydration of crude oil in an integrated manner and ensure sufficient treatment of the crude oil through mutual cooperation of the base seat, the tank body, the positive plates, the negative plates, the stirring devices, mixing devices, the three-way pipes and the reactant pipes; and the equipment is simple and takes up small space, and the high-efficiency desalination and dehydrationtreatment apparatus for the crude oil pretreatment is provided for users.

Description

technical field [0001] The invention relates to the technical field of petroleum processing equipment, in particular to a crude oil pretreatment desalination and dehydration treatment device. Background technique [0002] Petroleum, one of the main objects of geological exploration, is a viscous, dark brown liquid known as "industrial blood". There are oil reserves in some areas of the upper crust, and the main components are various alkanes, cycloalkanes, and aromatic hydrocarbons mixture. Although the crude oil entering the refinery has been dehydrated in the oil field, it still contains a certain amount of salt and water. Most of the contained salts (such as sodium chloride, calcium chloride and magnesium chloride, etc.) In the water-in-oil emulsion, there are also a small amount of salt crystals suspended in the oil. In order not to affect the crude oil processing, the first step after the crude oil enters the plant is desalination and dehydration. The removal method is...

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Problems solved by technology

[0003] The purpose of the present invention is to solve the shortcomings in the prior art, such as: the process of oil pretreatment is cumbersome, and the equipment is complicated, and it needs to be processed repeatedly for many times, and a crude oil pretreatment desalination and dehydration treatment device is proposed

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