15.3
Water cleaning of turbocharger during
operation
15.3.1 Water cleaning of turbine
The dirt deposits on the turbine side can be reduced by periodic
cleaning (washing) during operation. The overhaul periods can
thus be extended. Dirty turbines cause higher temperatures of
the exhaust gas and higher stress to the bearings due to imbal-
ance. Washing of the turbine side is necessary only when running
on heavy fuel.
During long periods of operation, periodic water cleaning pre-
vents the build-up of significant deposits on the turbine blades
and nozzle blades. This cleaning method does not work on very
dirty turbines which have not been washed regularly.
If the normal water cleaning of the turbine does not lower the
exhaust gas temperature level, hard deposits have probably built
up on the nozzle ring and the turbine blades in the turbocharger,
and they have to be cleaned mechanically. For that purpose, the
rotor cartridge and the nozzle ring have to be removed from the
turbocharger.
When washing with water, the water must be injected into the
exhaust system with the engine running at reduced output (see
15.3.2, step 2). The disadvantages of occasionally reducing the
output is not significant compared to the advantages of cleaning.
The necessary water flow is basically dependent upon the volume
of gas and its temperature. Additives or solvents must not be used
in the cleaning water. The use of salt water is prohibited.
Every gas inlet of the charger is equipped with a washing nozzle.
The nozzles are all connected to a common water connection
which has a valve and a quick-coupling. The water flow is con-
trolled by flow meter (4) to a suitable value, see table below.
Water cleaning of turbine
Turbocharger size
Water flow (l/min)
TPL 65
16 - 19
TPL 67
19 - 23
TPL 69
23 - 27
Cleaning should take place regularly according to maintenance
schedule, see chapter 04. Depending on the results obtained, the
washing interval may be increased or reduced.
32-200549-10
Turbocharging and Air Cooling
15
WÄRTSILÄ 32
15 - 3
Содержание VASA 6L32
Страница 4: ......
Страница 18: ...Appendix B Welding Precautions 200640 00 6...
Страница 26: ...01 Main Data Operating Data and General Design 32 200634 01 01 8 W RTSIL 32...
Страница 60: ...Appendix A Environmental Hazards 200507 02A 10...
Страница 68: ...Page 7 7 Document No 4V92A0645 Rev j...
Страница 84: ...03 Start Stop and Operation 32 200402 04 03 12 W RTSIL 32...
Страница 98: ...04 Maintenance Schedule 32 200623 01 04 14 W RTSIL 32...
Страница 154: ...07 Tightening Torques and Use of Hydraulic Tools 32 200643 01 07 30 W RTSIL 32...
Страница 162: ...08 Operating Troubles Emergency Operation 32 200402 01 08 8 W RTSIL 32...
Страница 164: ...Specific Installation Data 2005 01 09 2...
Страница 178: ...10 Engine Block with Bearings Oil Sump and Cylinder Liner 32 200150 10 14 W RTSIL 32 34SG...
Страница 216: ...Appendix A Testing of cylinder tightness 32 200142 A 4 W rtsil 20 32 34...
Страница 226: ...13 Camshaft Driving Gear 32 200546 02 13 10 W RTSIL 32...
Страница 253: ...U tube manometer Fig 15 12 401508200050 32 200549 10 Turbocharging and Air Cooling 15 W RTSIL 32 15 19...
Страница 254: ...15 Turbocharging and Air Cooling 32 200549 10 15 20 W RTSIL 32...
Страница 274: ...16 Injection System 32 200627 01 16 20 W RTSIL 32...
Страница 280: ...Fuel System 32 200508 07 17 6 W RTSIL 32...
Страница 314: ...19 Cooling Water System 32 200050 19 14 W RTSIL 32...
Страница 394: ...23 Instrumentation and Automation 32 200115 II 23 60 W RTSIL 32...