ABB TPL85-B14 Operation Manual page 68

Operating the wet
cleaning system
© Copyright 2016 ABB. All rights reserved.
Maintenance
Cleaning turbine blades and nozzle ring
in operation
Wet cleaning
1 Water supply (fresh water only)
2 Regulating valve
3 Manometer
5 Stainless-steel piping
6 Other turbochargers
7 Injection nozzle item 7a or 7b
Before cleaning, the Operating state prerequisites for wet cleaning

must be met.
Check that the water supply (1) is open and safeguarded and that it is

also connected to the regulating valve (2) before the turbocharger.
Set drain cock (9) of drain pipe (8) on gas outlet casing to Position 1

and check whether exhaust gas escapes.
Quickly open regulating valve (2) until manometer (3) indicates follow-

ing pressure: injection nozzle (7a) 1 ± 0.2 bar or injection nozzle (7b)
3 ... 3.5 bar.
Inject water for 5 minutes (injection nozzle 7a) or 10 minutes (injection

nozzle 7b) at constant engine output.
Check whether the exhaust gas temperature decreases following the

turbine.
Operation Manual / TPL85-B14/-B15/-B16
5
5.5
8 Drain pipe
9 Drain cock
10 Drain
11 Orifice (integrated into turbocharger)
21 Air line from the compressor casing
A Position 1
B Position 2
Page 66