ABB HT603545 Operation Manual page 52

Operation Manual / TPL76-C
5 Maintenance / 5.3 Cleaning the compressor during operation
Principle of wet cleaning
V-engines
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Cleaning method
Cleaning of the compressor during operation is carried out using the
cleaning method described in the following:
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Wet cleaning
This cleaning method is tested and approved by ABB Turbocharging.
To clean the compressor stage during operation, water is injected in
front of the compressor wheel.
The water does not act as a solvent, but the contamination deposit is re-
moved by the mechanical impact of the droplets. This is a very suitable
process, provided that the degree of contamination is not too high.
CAUTION
Corrosion and deposits when cleaning
Damage and impairment of turbocharger parts due to salt water and
cooling water additives
Don't use salt water for cleaning, but only clean fresh water.
u
CAUTION
Uncontrolled volumes of water
Uncontrolled volumes of water can damage the turbocharger and the
engine.
Never connect the water line without the orifice specified for the tur-
u
bocharger.
CAUTION
Formation of ice at low temperatures
Damage to turbocharger due to the formation of ice during wet clean-
ing if the intake air temperatures are too low.
Never carry out wet cleaning if intake air temperatures are under
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5 °C.
In the case of V-engines with several turbochargers on each engine, we
recommend parallel cleaning of the compressors. This cleaning process
is faster and the risk of turbocharger surging is reduced.
HZTL2485_EN Rev.G March 2020