Table 17: Compressor Cleaning Parameters - ABB HT608016 Operation Manual

Operation Manual / A170-M.. - A175-M..
7 Periodic maintenance / 7.4 Cleaning the compressor during operation
7.4.4 Wet cleaning with direct water supply
Prerequisites
On V-engines with several turbochargers per engine, parallel cleaning of both turbochargers
is recommended. This cleaning process is faster and reduces the risk of surging of the tur-
bocharger.
WARNING
Increased stress on material
During cleaning of the compressor at an engine load of 85 to 100 %, the
stress on the material of the compressor-end turbocharger parts can be in-
creased.
No personnel is allowed to be present in the vicinity of the turbocharger
u
during compressor cleaning.
Compressor cleaning must be activated from the engine control panel.
u
Wet cleaning operations for compressor with direct water supply
Trigger water injection according to the specifications of the enginebuilder.
u
Observe specified water pressure upstream of the connection to the turbocharger.
u
Operate engine for at least five additional minutes after cleaning.
u
Not more than three cleaning cycles should be conducted consecutively.
Cleaning parameters for each compressor
Product Engine load
[%]
A170-M 50 ... 100
A175-M
Table 17: Compressor cleaning parameters
© Copyright 2021 ABB. All rights reserved.
Water pres- Water injection
sure
[bar]
2.5 ... 4.5
HZTL4033_EN
Cleaning interval
period
[s]
10 25 ... 100
Ø of ori-
[h] fice
[mm]
2.9
3.4
Rev.H July 2021