ABB TPL65-A32 - Page 64

Operation Manual / TPL65-A32 / -A33 / -A36 + TPL69-A32 / -A33
Maintenance
5
Cleaning turbine blades and nozzle ring
in operation
5.4
Page 62
September 2014 HZTL2498_EN Revision A
Layout of cleaning pipes
1
Water supply (fresh water only) 6
Other engine
2
Regulating valve 7
Injection nozzle
3
Manometer 8
Drain pipe
4
Air supply with 3-way valve 9
Drain cock
5
Water pipe (stainless steel)
10
Drain
G
Pipes on gas inlet casing 11
Flowmeter
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.
NOTICE
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.
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