ABB TPL85-B14 - Page 68

Operation Manual / TPL85-B14/-B15/-B16
Maintenance
5
Cleaning turbine blades and nozzle ring
in operation
5.5
Page 66
© Copyright 2016 ABB. All rights reserved.
May 2016 HZTL2491_EN Revision B
Wet cleaning
1 Water supply (fresh water only) 8
Drain pipe
2 Regulating valve 9
Drain cock
3 Manometer 10
Drain
5 Stainless-steel piping 11
Orifice (integrated into turbocharger)
6 Other turbochargers 21
Air line from the compressor casing
7 Injection nozzle item 7a or 7b A
Position 1
B
Position 2
 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.
Operating the wet
cleaning system