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Part Sales & Technical Service Team 3. Water In Oil Monitoring System
Part Sales & Technical Service Team
3. Water In Oil Monitoring System
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Contents
1. Why Water-In Oil System?
2. What is DOOSAN WIO?
3. How to Retrofit
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1. Why Water In Oil System?
1) In 2-stroke engine, approx. 20% of all damages reported to classification
societies relate to bearings.
Based on statistics from Det Norske Veritas in the period from 1990 to 1996
Slow speed engines damages
0 5 10 15 20 25
Others
Main Bearing & Journal
Crank Bearing & Pin
Fuel pump, camshaft & drives
Crosshead bearing & guides
Cylinder cover & valves
Cylinder liner
Cylinderblock, frame & bedplate
Piston
Turbo charger
Percentage of all damages
• Low speed engines damages
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1. Why Water In Oil System?
2) Facts about 2-stroke diesel engine bearing damages.
Water-in oil
Spark erosion Incorrect assembly
Foreign matters entering the oil
way
Water-in oilMain Fact !
Water-in oil is a major contributor to a poor bearing condition.
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1. Why Water In Oil System?
Engine type : 6S50MC-C Water contaminated in system oil. No oil mist alarm! Required a month for repair.
3) Bearing accident case, cause of water-in oil contamination.
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1. Why Water In Oil System?
4) Why WIO system?
WIO system monitors the water content directly at the system and can be connected to the ship’s alarm system.
All vessels having DOOSAN-MAN engines (bore 46cm and above) ordered after Nov. 2008, have WIO system as standard.
Water-in oil is a major contributor to a poor bearing condition.
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2. What is DOOSAN WIO?
1) Working principles
Monitors the water content directly at the main lub oil inlet on the engine
Measurement independent of oil type, age and temperature.
Two alarms relay for AMS. High alarm level High High alarm level
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2. What is DOOSAN WIO?
Sensing module
Main LO inlet line pipe To main engine
Controller
To AMS systemDC 24V
2) Lay-out
Engine side
ECR
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2. What is DOOSAN WIO?
3) Main component
Controller
Sensing module
Controller Installed on each engine for analyzing of data from humidity sensing module. Displayed water-in oil value & oil temperature. Easy to download measurement history to PC.
Check up data (humidity and Temperature)
High accuracy (including nonlinearity, ±0.001Wa) * Wa : water activity
Sensing module
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2. What is DOOSAN WIO?
Measured ValuesHumidity Operating Range: 0 ~ 100% Relative Humidity, 0 ~ 1WaOperating Temperature Range: -40 ~ +190 ℃Accuracy: ±0.1% RH, ±0.001 WaResponse Time: < 6 sec (50% RH -> 0% RH)
Inputs and OutputsOperating Voltage 5 ~ 40VDCRelay Outputs 0.5A, 250 VAC (High alarm, High High alarm)Digital Outputs RS-485Analog Outputs 4 ~ 20mADisplay VFD Panel
Recommended alarm limitsHigh alarm level 0.8 WaHigh High alarm level 1.0 Wa (Wa : water activity)
4) Technical data
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3. How to Retrofit
1) Installation of Sensing module 2) Installation of controller
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Your Choice! Your Success!Your success partner
Doosan Engine & Bosung Engineering
- Thank you -
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Contact Point
H. P. ParkDirector / Head OfficeTel: 82-51-601-0802
E-mail: [email protected]
Kenny ParkBranch Manager / Hamburg
BranchTel : 49-40-2385-7710
E-mail : [email protected] Mermiris
Sales Manager / Greece OfficeTel : 30-210-418-7010
E-mail : [email protected]
Bosung Engineering Co.,Ltd.
www.bosung.com
