Replacement Intervals For Turbocharger Components - ABB HT575645 Operation Manual

4.3
4.3
Rotating components
Non-rotating components
Influencing parameters
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Operation
Replacement intervals for turbocharger
components
Replacement intervals for turbocharger com-
ponents
The recommended replacement intervals for the compressor and turbine
wheels due to stress caused by centrifugal forces and load cycles are cal-
culated under consideration of the operating conditions while applying the
safety concept for rotating components. They can be found on the turbo-
charger rating plate. Incalculable influencing parameters can shorten the
recommended replacement intervals for the rotor,
rameters
.
The expected replacement intervals for non-rotating components and
bearing parts are extremely dependent upon system-specific operating
see Influencing parameters
conditions,
When the specified, periodic inspections are carried out, the individual
components are inspected for wear and tear and replaced if necessary. In
this way, trouble-free operation is ensured.
The following parameters influence the replacement intervals for turbo-
charger components:
Parameters influencing bearing parts
 Poor quality of the lubricating oil (lubrication oil filter system, condition
of lubricating oil)
 Unusual loads (vibration, start/stop frequency)
 Non-permissible state of rotor unbalance
Parameters influencing non-rotating components exposed to exhaust gas
 Fuel quality (gas, MDO, HFO)
 Load profile (thermal load changes, number of starts/stops)
 Temperature level of exhaust gas
 Turbine cleaning frequency
 Procedure for turbine cleaning
Operation Manual / TPL67-C.. - TPL71-C..
4
4.3
see Influencing pa-
.
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