ABB TPL65-A32 Operation Manual page 57

Principle of wet cleaning
CAUTION
V-engines
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Operation Manual / TPL65-A32 / -A33 / -A36 + TPL69-A32 / -A33
Maintenance
Cleaning the compressor during
operation
Cleaning method
Cleaning of the compressor during operation is carried out using the
cleaning method described in the following:
 Wet cleaning
This cleaning method has been tested and approved by ABB Turbo
Systems.
To clean the compressor stage while in operation, water is injected in front
of the compressor wheel from an injection pipe that is built in the filter
silencer or suction branch.
The water does not act as a solvent in the process, but the deposit is
removed by the mechanical impact of the drops. This is a very suitable
process, provided that the build-up of deposits is not too advanced.
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.

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.
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