
Operation Manual / 4 Product description / A150-M.. - A155-M..
6
Periodic maintenance work
Page 49 / 120
© Copyright 2017 ABB. All rights reserved.
HZTL4032_EN
Revision F
January 2017
CAUTION
Maximum temperature at turbine inlet during cleaning
During cleaning, the temperature at the turbine inlet will rise and may strain
the material significantly.
Make sure the maximum temperature at the turbine inlet is not exceeded
during cleaning.
Figure 21: Carrying out wet cleaning of turbines
Fulfil prerequisites.
Ensure that the water supply (01) is guaranteed.
Open the stop valve (02) and set the water volume flow V
W
with a flowmeter (03) (see
cleaning parameters).
Close the stop valve (02) after 10 minutes.
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 Turbocharg-
ing Service Station.
Product
Temperature before
turbine before clean-
ing [°C]
Maximum tempera-
ture before turbine
during cleaning [°C]
Water volume flow
V
W
[dm
3
/min]
1)
Injection time
[min]
A150
350 ... 430
530
14.0
10
A155
350 ... 430
530
19.0
10
Table 13: Wet cleaning of turbines, parameters for 1-nozzle cleaning
1)
Corresponds to a water pressure p
WT
of 1.5 bar (overpressure compared to atmosphere)
before the cleaning nozzle
Product
Temperature before
turbine before clean-
ing [°C]
Maximum tempera-
ture before turbine
during cleaning [°C]
Water volume flow
V
W
[dm
3
/min]
1)
Injection time
[min]
A150
350 ... 430
530
18.0
10
A155
350 ... 430
530
25.0
10
Table 14: Wet cleaning of turbines, parameters for 6-nozzle cleaning
1)
Corresponds to a water pressure p
WT
of 2.5 bar (overpressure compared to atmosphere) at
the connection point WA/WG