Operation Manual / TPL67-C.. - TPL71-C..
Cleaning turbine blades and nozzle ring
in operation
Page 64
© Copyright 2016 ABB. All rights reserved.
April 2016 HZTL2488_EN Revision C
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.
Set the required volume of water on the flow meter as shown in the ta-
ble in the following chapter
.
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).
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