Turbine Seal Leakage
Existing Application Retrofit
An existing LM6000 turbine installation located in Minnesota had an
operational problem on a SSS-Clutch and clutch oil system. The
system utilized a gravity oil return to the tank and was
experiencing positive pressure build-up within the EG Enclosure. The
results were oil mist emissions from the vent port and seal leakage.
Between seal leakage and oil mist emissions the customer was
experiencing a relatively high rate of oil consumption rate.
Additionally, the oil mist created environmental issues. More
importantly, the oil consumption seemed to be causing a reduction in
transposed power and vibration problems in the turbine.
Turbine Model: GE LM6000 Turbine
Oil Flow Rate: 200 Liters per Minute
Oil Temperature: 90-140 degree F
Oil Pressure: 20-25 PSI
Oil Viscosity: ISO-VG32
Tank Size: 6' X 4' X 4' H
The fill port on the lubrication skid was a 2-inch ANSI bolt
pattern, raised face flange. The seal manufacturer recommends
at least 1.5 to 2.0-inches of Mercury vacuum inside clutch housing
to prevent seal leakage issues.
Install a blower assisted exhaust system on the vent port of the
lubrication skid to eliminate oil mist and to create a vacuum in the
reservoir to eliminate seal leakage The Solberg Manufacturing,
Inc. BAE series was selected to handle the job.
The turbine OEM and the customer liked the turn-key design of the
system, which allowed for a quick and easy retro-fit. They also
found the service level and on-site support provided by Solberg to be a
The Solberg BAE:
Blower Assisted Exhaust designs consist of the vacuum rated chamber; a
blower system that is used to create the required vacuum level; and a
coalescing filter. The optional design on the automated vacuum
regulator system allows the customer to monitor and adjust the vacuum
level within the tank from a remote PC. The element is rated
99.97% efficient at the 0.3- micron particle size to protect the
environment and is designed for a service interval of 1-year, which
makes the installation maintenance free.
Solberg technical support and engineering were on site to help supervise
the installation and the wiring for the system. Preliminary tests
were run to ensure that all of the interfaces were working properly.
Periodic reviews are conducted, allowing the customer to ask questions
and receive help with regular service on the system – such as element