Cyclone oil gas separator and separation method

Abstract

The invention discloses a cyclone oil gas separator and a separation method. An inner wall surface of a cylindrical cyclone outer cylinder of the separator is provided with a plurality of sets of oilretaining fin groups, each group of the oil retaining fin groups comprise a plurality of fins arranged in the axial direction of the cylindrical cyclone outer cylinder from top to bottom, and fin channels are formed between the adjacent two fins; the plurality of sets of oil retaining fins are evenly distributed in the circumferential direction of the cylindrical cyclone outer cylinder; predetermined spacing is reversed between adjacent sets of the oil retaining fins, and a longitudinal flow guiding channel is formed; the fin channel is inclined along the circumference of the cylindrical cyclone outer cylinder in the intake direction of an inlet of an oil and gas mixture, and the two ends of the fin channel are respectively connected with adjacent liquid film guiding channels. The separator can effectively achieve the rectification and guidance of oil film on the wall surface of the cyclone cylinder, and accelerate the drainage of the wall surface. The presence of the fins can greatlyexpand a collision area of oil droplets, and the shape of the fins which are slightly curved inward can also prevent the oil droplets from splashing twice. The method can effectively improve the separation efficiency of the separator.

Description

technical field [0001] The invention belongs to the field of oil and gas processing equipment, and relates to a cyclone type oil and gas separator used for oil and gas separation in an oil injection compressor and a separation method. Background technique [0002] For oil-injected compressors, installing high-efficiency oil-gas separation equipment at the exhaust outlet can not only ensure the purity of the exhaust gas, but also improve the recycling of lubricating oil, which is an essential and important equipment in oil-injected compressors. The cyclone oil-gas separator is widely used in the chemical industry due to its advantages of small size, light weight and high separation efficiency, and it is also the most commonly used primary separation equipment in oil-injected compressor systems. [0003] The structure of the currently widely used cyclone separator mainly includes a mixed gas inlet pipe, a cyclone outer cylinder, a cyclone inner cylinder, an oil discharge pipe ...

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Problems solved by technology

[0006] Aiming at the problems of low oil droplet adhesion to wall and splashing of oil film in traditional separators, the present invention provides a cyclone type oil-gas separator and separation method. , the problem of oil film splashing

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