LIQUID-GAS SEPARATOR Russian patent published in 2017 - IPC B01D19/00 

FIELD: chemistry.

SUBSTANCE: invention relates to separators for separation of liquid media, having different specific weight, and for separation of gaseous medium accumulated in liquid. Liquid-gas separator comprises housing, a vertical partition wall, installed in housing with separation of latter into inlet and outlet sections, interconnected in upper part of housing, gas-liquid mixture feed pipeline, communicated with inlet section, as well as gas medium discharge pipe, heavier and lighter fractions of the liquid medium, a set of phase-separation nozzles in form of perforated plates arranged in parallel, overflow partition, installed in outlet section, and drain tray, which is located with its upper edge with upper edge of vertical partition and by its lower edge - with set of phase-separation nozzles on side of inlet, fixed to transverse partition, permeable to heavier fractions of liquid medium from below, gas - from above. Liquid medium heavier fraction discharge branch pipe is connected with housing lower part between vertical partition wall and overflow partition, a liquid medium light fraction discharge is provided with an adjustable gate and inserted into housing below level of liquid medium, which is controlled by sensor, control controlled gate. Gas-liquid mixture feed pipeline is inserted into vertical hydraulic cyclone, tightly fitted in housing and equipped with concentrically installed mist separator chamber, inner space of which above level of liquid is connected with gaseous medium discharge branch pipe, which is additionally connected by a tube with space under drain tray above level of liquid, lower edges of hydraulic cyclone and mist separator chamber are located in close proximity to lower part of housing. In inlet section of housing between hydraulic cyclone and mist separator chamber there are concentrically arranged cylindrical sectors, and in upper and lower parts of cylindrical sectors perpendicular to inlet and outlet headers. Between hydraulic cyclone, cylindrical sectors and mist separator chamber there are rows of pipes from porous material with a hydrophobic coating on inner surface with possibility of successive movement of gas-liquid mixture in all rows of pipes from inlet header to outlet header, wherein cylindrical sectors between rows of pipes from porous material with a hydrophobic coating on inner surfaces are made from metal mesh and gas discharge channel communicated with gas medium discharge pipe, wherein mist separator chamber inside is equipped with inertial drop catcher in form of inclined down truncated cones, reducing flow passage of mist separator chamber from top to bottom, wherein at inlet of gas medium discharge pipe there is a screen consisting of mutually facing towards each other at bottom converging upward cone, and on top of truncated cone diverging from bottom to top. Above gas outlet channel, gaseous medium outlet pipe is equipped with vertical metal mesh, where in output section of housing there is a second vertical partition wall, and between transverse partition and second vertical partition wall there is a package of phase-separating nozzles. Under package phase separation nozzles above overflow partition concentric with housing there is a pipe with through holes, wherein one end of pipe is plugged with transverse partition, and at other end inner space of pipe communicates with a pocket, rigidly secured to second separating partition. Upper edge of pocket is located above pipe, and in pocket on level of its upper edge there is a float, sinking in heavier fraction of liquid medium and emerging in a light fraction of liquid medium, connected with controlled gate. Pocket downstream of second vertical partition wall in outlet section is hydraulically communicated with discharge branch pipe of lighter fraction of liquid medium, wherein tube, connected to gas medium discharge pipe, inside housing is equipped with gas feed pipe from separator housing.

EFFECT: high efficiency of extracting gas from gas-liquid mixture and gas cleaning from impurities and high quality of gravity separation and excluding penetration of heavy fraction of liquid medium in discharge pipe of lighter fraction of liquid medium.

1 cl, 2 dwg