ABB TPL65-A32 Operation Manual page 64

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Operation Manual / TPL65-A32 / -A33 / -A36 + TPL69-A32 / -A33
Maintenance
Cleaning turbine blades and nozzle ring
in operation
Layout of cleaning pipes
1 Water supply (fresh water only)
2 Regulating valve
3 Manometer
4 Air supply with 3-way valve
5 Water pipe (stainless steel)
G Pipes on gas inlet casing
Wet cleaning procedure for turbine during operation
Meet prerequisites and operating condition requirements without fail

before cleaning.
Make sure water supply (1) is connected, turned on and guaranteed.

Open drain pipe (8,9) if provided.

Switch over 3-way valve (4) from scavenging air mode to water supply.

Set the required volume of water on the flow meter as shown in the
table in the following chapter Cleaning parameters.
After injecting required volume of water, shut off water supply again by

switching over 3-way valve (4) to scavenging air mode.
Finish injection procedure this way.

Close drain hole (if provided) above drain pipe (8,9).

After cleaning, wait with engine running for at least 10 minutes without

changing load to allow turbocharger to dry.
5
5.4
6 Other engine
7 Injection nozzle
8 Drain pipe
9 Drain cock
10 Drain
11 Flowmeter
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