Oil-water separation method and device

Abstract

The invention discloses an oil-water separation method and an oil-water separation device. A corrugated sheet is driven by a motor to move up and down and rotate, and is driven by a moving shaft to do reciprocation; relative motion of liquid drops occurs through rotation motion of the corrugated sheet; the liquid drops in emulsion fluid with different heights are continuously conglomerated in an up-and-down motion process of the corrugated sheet; after the coagulation is carried out for a certain time, the separation between oil and water is completed; the corrugated sheet has certain length and width, and a zigzag channel for enabling the fluid to flow back and forth on the channel is provided, so that scattered liquid drops are conglomerated to a maximum extent; the corrugated sheet is made of hydrophilic materials, and is oleophylic and free of sticking oil; oil drops are adsorbed and are continuously conglomerated on the sheet, and after the oil drops are increased to a certain extent, the corrugated sheet moves to an oil layer and is blended into the oil after the oil drops are broken; through up-and-down motion and rotation motion, the oil drops are conglomerated during floating and float during coagulation; impurities glide by means of gravity, and a gap between stacked sheets is difficultly blocked.

Description

technical field [0001] The invention relates to an oil-water separation technology, in particular to an oil-water separation method and device. Background technique [0002] At present, the three-phase separators used in oilfields mainly include vertical three-phase separators and horizontal three-phase separators, while vertical separators mainly use methods such as cyclone separation and gravity separation. The phase separator separates the gas and liquid through the cyclone. After the oil and water enter the liquid collection area, the separation of the oil and water is mainly achieved by gravity sedimentation. Although the method of heating or adding a demulsifier is currently used to speed up the separation speed, these methods only start from To a certain extent, the separation effect has been achieved, but it still takes a long time to separate oil and water, and the separation speed is relatively slow. Contents of the invention [0003] In order to solve the short...

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Problems solved by technology

[0002] At present, the three-phase separators used in oilfields mainly include vertical three-phase separators and horizontal three-phase separators, while vertical separators mainly use methods such as cyclone separation and gravity separation. The phase separator separates the gas and liquid through the cyclone. After the oil and water enter the liquid collection area, the separation of the oil and water is mainly achieved by gravity sedimentation. Although the method of heating or adding a demulsifier is currently used to speed up the separation speed, these methods only start from To a certain extent, the separation effect is achieved, and it still takes a long time to separate oil and water, and the separation speed is slow

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