Wartsila 31, Product Manual

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11. Turbocharger Cleaning
Regular water cleaning of the turbine and the compressor reduces the formation of deposits
and extends the time between overhauls. Fresh water is injected into the turbocharger during
operation. Additives, solvents or salt water must not be used and the cleaning instructions in
the operation manual must be carefully followed.
11.1 Turbine cleaning system
A dosing unit consisting of a flow meter and an adjustable throttle valve is delivered for each
installation. The dosing unit is installed in the engine room and connected to the engine with
a detachable rubber hose. The rubber hose is connected with quick couplings and the length
of the hose is normally 10 m. One dosing unit can be used for several engines.
Water supply:
Fresh water
0.3 MPa (3 bar) Min. pressure
2 MPa (20 bar) Max. pressure
80 °C Max. temperature
Fig 11-1 Turbocharger cleaning system (DAAF347567)
Pipe connections System components
Cleaning water to turbine 502## TC cleaning device 5Z03
Cleaning water to compressor 509## Wärtsilä control unit for 4 engines 02
Scavenging air outlet to TC cleaning valve unit 614## Flow meter/control (7,5 - 40 l/min) 03
Flow adjustment valve, built in 04
Air filter 05
Wärtsilä 31 Product Guide - a1 - 18 October 2016 11-1
11. Turbocharger Cleaning Wärtsilä 31 Product Guide