Vortex separator filters represent the most complex centrifugal
separation design offered. This two stage design is a type of
separator except the coalescing section is the second stage and not
the primary stage as with the standard designs.
The process gas enters into the side of the centrifugal separator filter and a centrifugal vortex is created due to the entry angle, nozzle size and vessel diameter. The inlet to the filter cartridge manifold for the coalescing stage is located within the low velocity portion of the centrifugal vortex, thus droplets and particles larger than 10 microns are propelled to the vessel walls where they coalesce to a common drain under the vortex containment plate (VCP). The VCP prevents re-entrainment of the separated fluid into the process gas.
The process gas with droplets finer than 10 microns enter the filter cartridge manifold and pass through coalescing filter cartridges made of epoxy saturated borosilicate microglass fibers. A matrix of fibers creates a drain channel, thus the fine droplets are coalesced into larger droplets and drained from the cartridge and back into the separator body.
The fineness of the droplets that can be removed is dependent upon the filter cartridge design and can be as low as ½ micron removed with 99.7% efficiency. The body of separator filters has a chamber cover to enable periodic filter cartridge replacement which might be required if particulate fouls the filter cartridge media.