A multi-stage variable-diameter spiral oil-water separator

Abstract

A multi-stage variable-diameter spiral oil-water separator. It can efficiently separate the separation medium with high viscosity and small particles. It is characterized in that: the wall tube contains at least two separation units; the separation unit is composed of a spiral piece, an inner tube and a fluid connection, and the wall tube, the spiral piece and the inner tube are surrounded to form a spiral flow channel; the spiral pieces at each level are independent; The upper end of the first-stage inner tube is fixed with a stabilizing cone; the split fluid is fixed in the center with an inverted frustum-shaped circular tube channel through two fan-shaped connectors, and the diameter gradually decreases along the axial direction; the tail end of the inner tube is also fixed. It is in the shape of an inverted truncated cone, matching with the inner circular tube channel of the split fluid, leaving an annular space for flow, the outer diameter of the inner tube increases step by step, and the inner diameter of the corresponding level of circular tube channel is also enlarged in the same proportion; the final The tail end of the lower inner pipe is connected with the top end of the overflow pipe, and the overflow pipe matches the tail end of the lowermost inner pipe, forming an annular flow space with gradually decreasing diameter between them.

Description

Technical field: [0001] The invention relates to a two-phase separation treatment device applied in the fields of petroleum, chemical industry, environmental protection and the like. Background technique: [0002] At present, the rapid separation methods used for two phases (taking oil and water two phases as an example) mainly include centrifugation (such as cyclone separation, spiral separation, etc.), air flotation, filtration and membrane separation. Cyclone separation has the advantages of small equipment size, etc., but it has limited ability to remove fine oil droplets, and the space for effective separation of mass transfer and exchange between two phases in the cyclone is small, mainly concentrated in the inlet jet and the cyclone chamber, and As the loss along the cyclone increases, the effective separation speed gradually decreases and the separation time is shorter; air flotation can adapt to a smaller range of oil concentration changes; filtration can better ach...

AI Technical Summary

Problems solved by technology

It is difficult for the existing separation equipment to achieve efficient separation for the separation medium in the state of high viscosity and small particles

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