Turbine Contamination Control ™
A critical installation such as a gas or steam turbine requires constantly perfectly clean and dry oil for proper lubrication, anywhere in the system, from bearings to the control hydraulics. Yet it often happens that the oil is (extremely) contaminated, even though you replace the standard filters on time. How come?
This has everything to do with the aging or oxidation process of oil. Even in new oil, the aging process is already well underway. The only thing we have to add to this are catalysts; dirt particles such as metals and moisture. The temperature does the rest. The oxidation level rises and there is a chemical reaction in the oil, namely, OXIDATION. This forms a brown, soft deposit (the oxidation product) and is called resin or varnish. Varnish formation not only allows the oil to oxidize even faster, it also forms a deposit on the walls of the tank and it settles in the pipes of the entire system, in pumps, valves and clogs up existing filters. This in turn results in insufficient bearing lubrication, deteriorating temperature housekeeping, poorly functioning pumps and valves, more frequent replacement of the standard filters and perhaps even of the oil. We can say that the oil is losing its lubricating properties and the ability to transport dirt to the filter.
Can this be solved by replacing the oil? Well, no ... In 99% of the cases the oil is not really the problem and can be cleaned using proper filtration like Triple R. Often the varnish residue inside the machine/system is such that replacing the oil is only a very temporary solution. This is because the new oil loosens the dirt that is present everywhere and then transports it to the standard filters. A filter that is not resistant to this type of dirt, clogs, and then needs to be replaced again. The frequency will increase and breakdowns imminent. Keep in mind that the new oil, in case of an oil change, is directly in contact with the residue inside the system, causing the new oil's oxidation process to go even faster.
The data below is from a steam turbine / gas turbine (GT10) oil cleaning project, a CHP, where we started with a NAS 10 and an oxidation degree of 70%, and after cleaning with our systems, within 2 weeks, have realized a NAS 3 and an oxidation degree of 15%.
Particle contamination analysis > 2 micron
Varnish (oxidation product)
Analising oxidation levels (by oil samples)
Results from analysis (microscopic)
The solution? Triple R Oil Cleaner | TRIS B.V. We have developed systems specifically for gas and steam turbines. These systems ensure effective removal of dirt particles <1 micron, preventing oil oxidation (resin varnish formation) and removing water / moisture; THE all in one solution for gas and steam turbines!