Axial-flow type isodirectional outflow cyclone separator

Abstract

The invention relates to an axial-flow type isodirectional outflow cyclone separator, and mainly solves the problems that existing hydrocyclones have a poor effect in removing tiny oil drops. The cyclone separator is characterized in that: a flow guiding body is disposed in a steady flow guiding cavity, a steady flow guiding cone is fixed at the upper end of the flow guiding body, and the cone surface adopts circular curve connection to achieve smooth transition; the flow guiding body is composed by connecting at least 3 guiding vanes and a central shaft, and the guiding vanes have a variable helix angle structure; the major diameter end of the steady flow guiding cone is in coaxial connection with the central shaft of the flow guiding body; the inner bottom surface of a separation cavity is closed, an overflow outlet pipe passing through the inner bottom surface is fixed at the center of the inner bottom surface, a tangential outlet is disposed on a side wall above the bottom surface and is connected to an underflow tangential outlet pipe; and the liquid cyclone direction permitted by the underflow tangential outlet pipe is identical to the liquid cyclone direction formed by the flow guiding body. The separator of the invention has the advantages of high separation efficiency to tiny oil drops, axial inflow and isodirectional outflow, etc., and can be used for gas-liquid separation, oil-water separation, as well as solid-liquid separation.

Description

Technical field: [0001] The patent application of the present invention relates to a cyclone separation device used in petroleum, chemical industry, environmental protection and other fields to realize two-phase separation. Background technique: [0002] At present, the rapid separation methods used for two-phase (oil-water two-phase as an example) mainly include cyclone separation, air flotation, filtration and membrane separation. Cyclone separation has the advantages of small equipment size, but its ability to remove small oil droplets is limited; air flotation can adapt to a small range of oil concentration changes; However, frequent backwashing is required to ensure the long-term stable operation of the equipment; the cost of membrane separation equipment is relatively high, and the requirements for medium conditions are relatively strict. Among them, the hydrocyclone used in the cyclone separation method uses the density difference between the media for centrifugal se...

AI Technical Summary

Problems solved by technology

However, after these existing devices are applied in the field of water treatment technology, they are gradually found to have practical problems such as poor removal of fine oil droplets.

Especially after the oilfield development enters the medium-high water-cut production period, with the continuous expansion of the polymer flooding scale, the production volume of the polymer-containing sewage increases year by year, the viscosity of the polymer-containing sewage is high,

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