ABB HT596419 Operation Manual page 54

Operation Manual / TPL65VA32 / VA33
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 through an injection pipe fitted in the fil-
ter silencer or the suction branch.
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.
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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.
HZTL2464_EN Rev.E March 2020