An electro-rotational enhanced demulsification dewatering device and method

CN118703227BActive Publication Date: 2026-07-03CHONGQING TECH & BUSINESS UNIV

Patent Information

Authority / Receiving Office: CN · China
Patent Type: Patents(China)
Current Assignee / Owner: CHONGQING TECH & BUSINESS UNIV
Filing Date: 2024-08-06
Publication Date: 2026-07-03

AI Technical Summary

Technical Problem

Existing single demulsification and dehydration technologies cannot achieve stable and efficient separation results. Traditional cyclone centrifugation has a high droplet breakage rate, while electric field separation has low efficiency. This results in high turbulence intensity and large shear force in the coupled separation device, making it difficult to achieve efficient separation.

Method used

An electro-cyclone-enhanced demulsification and dehydration device, combining a hydrocyclone and guide vane structure, reduces energy loss and enhances centrifugal force through the guide vane, and promotes droplet coalescence through a pulsed electric field, achieving stable and efficient separation.

Benefits of technology

It effectively reduces droplet breakage rate, improves separation efficiency, significantly enhances demulsification and dehydration effects, reduces energy consumption, and achieves efficient and stable oil-water separation.

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Abstract

This invention relates to the field of liquid physical separation technology, specifically disclosing an electro-cyclone enhanced demulsification and dehydration device and method. The dehydration device includes a hydrocyclone, which comprises a cyclone cavity, an inlet pipe, an overflow pipe, a large conical section, a small conical section, and an underflow pipe. One axial end of the cyclone cavity is sequentially connected to the large conical section, the small conical section, and the underflow pipe, while the other axial end of the cyclone cavity is closed. The overflow pipe passes through the closed end of the cyclone cavity along its axial direction and is fixedly connected to the cyclone cavity. The inlet pipe is connected to the side wall of the cyclone cavity, and its inner wall is tangent to the inner wall of the cyclone cavity. A guide vane is connected to the overflow pipe inside the cyclone cavity. The guide vane is insulated. Both the cyclone cavity and the overflow pipe are conductive. This invention utilizes the guide vane to effectively reduce the droplet breakage rate and promote flow field stability. Combined with the pulsed electric field method, it effectively improves the separation effect of cyclone centrifugation under conditions of larger particle size.

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