Operation Manual / Power2 550-M / High-pressure stage
7 Periodic maintenance / 7.2 Cleaning the compressor during operation
© Copyright 2022 ABB. All rights reserved.
HZTL4058_EN
Rev.F
March 2022
7.2.3
Prerequisites for wet cleaning of compressor
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Engine load of 50 ... 85%
CAUTION
Volume of water
Uncontrolled volumes of water can damage the pressure stages and the en-
gine.
u
Never connect injection tubes directly to a water pipe or a larger meter-
ing container other than that specified by Turbo Systems.
CAUTION
Corrosion and deposits when cleaning
Salt water and cooling water treatment substances damage and adversely
affect parts of the low-pressure and high-pressure stage.
u
Never use salt water, but only pure water for cleaning.
7.2.4
Wet cleaning of compressor
Wet cleaning operations for compressor with direct water supply
u
Trigger water injection according to the instructions of the enginebuilder.
u
The water pressure before the connection to the pressure stage must be observed (see
table Cleaning parameters).
u
After cleaning operations, a waiting period of at least five minutes is required for the
pressure stage to dry.
The cleaning process can be repeated up to three times.
The success of the cleaning can be recognised based on the charging pressure or the ex-
haust gas temperature.
If the cleaning is still unsuccessful after three processes and the engine values are unsatis-
factory, it is recommended to have the low-pressure and / or high-pressure stage checked
and cleaned by a service station.
Cleaning parameters for each compressor
Power2
Engine load
Water pressure
[bar]
Water injection period
[s]
Ø of orifice
[mm]
550 LP
80 … 85 %
3
10
2.1
Table 18: Cleaning parameters
Power2
Engine load
Water pressure
[bar]
Water injection period
[s]
550 HP
80 … 85 %
p
VE
* + 3
10
Table 19: Cleaning parameters
* Compressor inlet pressure depending on the operating point
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