ABB A140-H55 - Table 14 Wet Cleaning of Turbines

Operation Manual / 4 Product description / A130-H.. - A140-H..
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Periodic maintenance work
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HZTL4030_EN
Revision C
September 2015
Figure 23: 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
Turbocharging Service Station.
Product
Temperature before
turbine before
cleaning [°C]
Maximum
temperature before
turbine during
cleaning [°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
Table 14: Wet cleaning of turbines, parameters
1)
Corresponds to a water pressure p
WT
of 1.5 bar (overpressure compared to atmosphere)