Multi-electric-field electric desalting and dewatering system and equipment adopting vertical polar plates

Abstract

The invention discloses a multi-electric-field electro-desalting and dewatering system and equipment adopting vertical polar plates, and belongs to the field of crude oil electro-desalting and dewatering, the multi-electric-field electro-desalting and dewatering equipment adopting the vertical polar plates comprises an electro-desalting and dewatering tank, the electro-desalting and dewatering tank is internally provided with an upper electric field unit and a lower electric field unit, the electric field unit is mounted in the electric desalting and dewatering tank through the mounting accessory, the upper electric field unit comprises a semi-closed water disc, a downpipe, an upper vertical polar plate, an upper oil inlet distributor and an upper backwashing device, and the lower electric field unit comprises a lower vertical polar plate, a lower oil inlet distributor and a lower backwashing device; an oil outlet collecting pipe is further arranged in the electric desalting and dewatering tank; according to the invention, the size of the electro-desalting and dewatering tank can be reduced, and the occupied area and investment can be reduced in a large-scale electro-desalting and dewatering system under the conditions of certain treatment capacity and oil product property.

Description

technical field [0001] The present invention relates to the field of electric desalination and dehydration of crude oil, more specifically, relates to a high-efficiency electric desalination and dehydration that adapts to large-scale crude oil processing capacity, heavy and inferior crude oil quality, capacity expansion of existing electric desalination and dehydration tanks, and energy-saving transformation Complete system and equipment. Background technique [0002] Crude oil electric desalination and dehydration equipment is an important equipment for petrochemical and oil refining enterprises. It is an effective guarantee for reducing scaling and corrosion of petrochemical equipment and preventing catalyst poisoning. The operation effect of electric desalination and dehydration equipment is related to the smooth operation, safe production and economic benefits of the whole plant of petrochemical and oil refining enterprises. [0003] The new development trend of crude o...

AI Technical Summary

Problems solved by technology

However, when the operating temperature of electric desalination and dehydration and the properties of crude oil do not change much, the density difference between crude oil and water and the viscosity of crude oil change very little. Therefore, efforts can only be made to reduce the rising speed of crude oil in the electric field

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