Expected Exchange Intervals - ABB HT846739 Operation Manual

Operation Manual / TPS48-D/E.. - TPS61-D/E..
4 Operation / 4.3 Expected exchange intervals

4.3 Expected exchange intervals

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Rotating components
The recommended replacement intervals for compressor wheels and tur-
bine wheels are defined depending on the operating conditions and
based on the safety concept (SiKo) for rotating parts. These intervals
can be found on the turbocharger rating plate.
Non-rotating components
Depending on the system-specific operating conditions, a distinction is
made between:
¡
the replacement interval for the bearing parts and
¡
the replacement interval for those non-rotating components that are
exposed to hot gases.
Decisive in this respect are various influencing parameters, which can
drastically shorten the replacement intervals of these parts in extreme
cases.
During the specified periodic service work, the individual components
are inspected for wear and, if necessary, replaced.
Expected replacement intervals [h]
Turbine casing
Nozzle ring
Gas outlet flange
Partition wall
Rotor components
Bearing parts
Other casings
GAS = Natural gas
The specified values are a guide only and not guaranteed (see following
section Influencing parameters).
HZTL2410_EN
GAS / MDO
25000 ... 50000
50000
50000
50000
See rating plate information
12000 ... 32000
50000
MDO = Marine diesel oil
HFO
25000 ... 50000
10000 ... 25000
35000 ... 50000
35000 ... 50000
12000 ... 24000
50000
HFO = Heavy fuel oil
Rev.F March 2020