ABB A135-M55 - Fig. 25: Carrying out Wet Cleaning of Turbine; Table 14: Wet Cleaning of Turbine, Parameters

Operation Manual / 4 Product description / A130-M.. - A145-M..
6 Periodic maintenance work / 6.3 Cleaning the turbine during opera-
tion
© Copyright 2020 ABB. All rights reserved. HZTL4031_EN Rev.L July 2020
Fig.25: Carrying out wet cleaning of turbine
u Fulfil prerequisites.
u Ensure that the water supply(01) is guaranteed.
u Open the stop valve(02) and set the required water pressure at the manometer (3) (see
cleaning parameters in the table (see Table13: Turbine wet cleaning, recommended oper-
ating state →48)).
If an optional flowmeter (04) is present, set the water volume flow V
W
on the basis of the
cleaning parameters in the table (see Table14: Wet cleaning of turbine, parameters
→49).
u Close the stop valve (02) after 10minutes.
u Wait for 10minutes; do not change the load during this stabilisation phase.
If the cleaning result is unsatisfactory or there is water leakage, contact an ABB Turbochar-
ging Service Station.
Product Temperature be-
fore turbine before
cleaning [°C]
Maximum temper-
ature before tur-
bine during clean-
ing [°C]
Water volume flow
V
W
[dm
3
/min]
1)
Injection time
[min]
A130 350 ... 430 530 4.0 10
A135 350 ... 430 530 5.5 10
A140 350 ... 430 530 8.5 10
A145 350 ... 430 530 12.0 10
Table14: Wet cleaning of turbine, parameters
1)
Corresponds to a water pressure p
WT
of 1.5bar (overpressure compared to atmosphere)
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