A petrochemical oil-water separation device

Abstract

The invention relates to the technical field of oil-water separation, in particular to a petrochemical oil-water separation device. One end is fixedly connected to the inner wall of the layered barrel, a connecting ring is connected in the collar through a rotation limiting mechanism, a vertical lifting mechanism is connected to the connecting ring, a filter plate is slidably sealed at the bottom of the surface of the connecting ring, and the side walls of the filter plate and The inner walls of the layered barrel are in sliding contact. In this technical solution, after the air bubbles rise to the bottom of the filter plate, they will rise out through the connection between the filter plate and the connecting ring and the arc groove on the side of the filter plate, and reach the layered place, thereby effectively reducing the air bubbles in the rising process. The probability of solid particles contacting and breaking is conducive to separating oil droplets with smaller diameters from the water body below and improving the effect of oil-water separation.

Description

technical field [0001] The invention relates to the field of oil-water separation, in particular to a petrochemical oil-water separation device. Background technique [0002] Oil-water separation is mainly based on the difference in density or chemical properties of water and oil, using the principle of gravity sedimentation or other physicochemical reactions to remove impurities or complete the separation of oil and water. Air flotation is a method that relies on the formation of tiny air bubbles in water, which carry flocs and float to the liquid surface to purify water. The condition is that air bubbles attached to oil droplets can form oil and gas particles. Since the appearance of bubbles increases the density difference between water and particles, and the particle diameter is larger than that of crude oil droplets, replacing oil density with particle density can significantly increase the rising speed. Publication number CN112408546A discloses a petrochemical oil-wa...

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Problems solved by technology

[0003] In the field of petrochemical industry, in addition to crude oil and water, the oil well production fluid often contains rock debris, clay particles, scale deposits, corrosion products, and rock debris extracted from the oil reservoir. Mechanical impurities such as clay particles, scale deposits, and corrosion products are easily adsorbed on the oil-water interface, thereby hindering the coalescence between oil droplets and water droplets, and making the oil-water separation effect of the produced fluid worse; polymers with high water content will make The increase in the viscosity of the water phase of the produced liquid will slow down the floating rate of the oil droplets in the produced liquid with high water content, and the oil-water separation effect will become poor. Therefore, it is necessary to filter the solids in the mixed liquid before the oil-water separation. During the operation, it is difficult to completely remove the solids in the oil-water mixture. During the process of floating and stratifying the oil and gas in the water by the air flotation method, when the oil and gas particles touch the solid particles in the mixed liquid during the rising process, Bubbles generated by oil and gas particles are easy to break during contact, thereby reducing the effect of oil-water separation

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