Cyclone Coarse Graining Settling Dehydration Device and Method

Abstract

The invention discloses a rotational flow coarse graining sedimentation dehydration device which comprises a coarse graining processor and a precipitator, wherein the coarse graining processor comprises a swirler; a liquid inlet, an overflow port and a bottom flow port are formed in the swirler; the overflow port and the bottom flow port are externally connected with an overflow pipe and a bottom flow pipe respectively; the tail ends of the overflow pipe and the bottom flow pipe are connected with each other to be connected with a mixing liquid pipe; the other end of the mixing liquid pipe is connected onto a precipitator. In addition, the invention further discloses a method of dehydration by utilizing the rotational flow coarse graining sedimentation dehydration device. The method comprises performing coarse graining treatment on oil-water mixing liquid and performing sedimentation on the oil-water mixing liquid subjected to the coarse graining treatment. According to the invention, three separation methods are integrated in a manner of having advantages and removing disadvantages; the dehydration method is simpler compared with a coarse grinding separation method, easier to control compared with a swirler separation method, and more efficient compared with a thermochemistry sedimentation method, so that the miniaturization of the dehydration device is ensured, the stability of production operation is met, the construction cost of a separation facility is reduced, and the operating cost is decreased.

Description

technical field [0001] The invention relates to an oil-gas-water separation device and a separation method thereof, in particular to a cyclone coarse-grained sedimentation dehydration device and a method thereof. Background technique [0002] At present, the commonly used oil-gas-water separation methods mainly include the following: 1) thermochemical sedimentation method; 2) coarse graining method; 3) centrifugal force method. [0003] The Chinese patent with publication number CN1944586A discloses a kind of acousto-thermochemical sedimentation crude oil water separation process. The demulsifier with a concentration of 100PPM is added into the oil pipeline through the dosing point to mix with the oil-water mixture in the oil pipeline, and the mixture flows into the carburetor and the phase mixer through the pipeline, and then flows into the outer layer between the phase mixer and the settling tank. In the oil pipeline wrapped with the slip ultrasonic generator, then the oi...

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Problems solved by technology

[0008] Although the above-mentioned equipment has the advantages of small equipment size and high separation efficiency, its dehydration quality and stability are poor, and its application in oil fields is limited to the field of sewage treatment

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