Coked light oil oil-water separation device capable of delaying coking

Abstract

The invention discloses a coked light oil oil-water separation device capable of delaying coking. The device comprises a coked light oil oil-water separation device main body, a fractionating tower reflux slot, a coked exhaust gas separation slot, a vertical tank, a horizontal tank, a light oil slot, a first pipeline, a branch pipe, a second pipeline, a third pipeline, a fourth pipeline, a fifth pipeline, a waste oil extraction pump, a sixth pipeline, a seventh pipeline, a control valve, a stop valve, a draining pump and a support rod, wherein the fractionating tower reflow slot and the cokedexhaust gas separation slot are arranged on the outer wall of one side of the coked light oil oil-water separation device main body; according to the oil-water separation device disclosed by the invention, the vertical tank and the horizontal tank are arranged on the traditional coked light oil oil-water separation system for delaying the coking; the water in the coked light oil is completely separated through the arrangement of the structure, the energy consumption is reduced, the unnecessary waste is avoided, and the production benefit is increased; a water collecting cover draining pipe isarranged at the top end of the valve so as to play a good function of keeping out the rain; and the problem that the service life is influenced since the valve is corroded after being used for a longtime is avoided.

Description

technical field [0001] The invention relates to the technical field of an oil-water separation device for coking light oil, in particular to an oil-water separation device for delayed coking and coking light oil. Background technique [0002] delayed coking thermal cracking craft. Its main purpose is to convert high carbon residual oil into light oil ; The device used can be used for cyclic operation, that is, heavy oil of coking heavier distillates distillate As circulating oil, the residence time in the device is relatively long; the oil-water separation system technology in the delayed coking production process in the existing market is relatively mature, but the light oil density (900-950g / cm3) produced by the fractionation system in the delayed coking production process is different from that of The water is close, the original light oil separation tank cannot meet the separation requirements, and the coking light oil has too much water content, which causes th...

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Problems solved by technology

Its main purpose is to convert high carbon residual oil into light oil ; The device used can be used for cyclic operation, that is, heavy oil of coking heavier distillates distillate As circulating oil, the residence time in the device is relatively long; the oil-water separation system technology in the delayed coking production process in the existing market is relatively mature, but the light oil density (900-950g / cm3) produced by the fractionation system in the delayed coking production process is different from that of The water is similar, the original light oil separation tank cannot meet the separation requirements, and the coking light oil has too much water content, which causes the coking light oil to be returned to the raw material oil tank, resulting in waste; and entering the raw material oil tank causes separation with water, which is not conducive to dehydration of the raw material oil. Among them, the control valves used in the oil-water separation system are all simple valves on the market, which do not have the ability to keep out the rain. When used for a long time, they are easy to corrode the valve and affect the service life. It is not convenient to control the opening and closing of the valve.

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