Seaworthy has a solution for varnish and particulate build-up within lube oil of steam turbines (STs). After circulating through steam turbine bearings and seals for years, the lube oil is subjected to high temperature oxidation, which causes the early formation of insolubles—the beginnings of varnish. These early insolubles are soft and without definite shape, so the standard ST lube oil control is not effective. These early-stage insolubles will eventually stick to metal surfaces, such as bearings and seals, and cause these components to malfunction.
Our simple, low-cost filtration solution uses a proprietary organic filter to absorb/adsorb the insolubles from the oil before they can deposit and cause problems. The filter and pump are skid-mounted to apply sidestream filtration for the large oil reservoir. Without interfering with the operation of the ST, our system draws oil from the reservoir, removes and holds the insolubles inside the filter’s seven elements, and returns varnish-free oil back to the reservoir. This system is designed to run continuously, to match the operation of the steam turbine.
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Varnish Control for Steam Turbines
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