Wartsila ?31DF Series Bedienungsanleitung
PRODUCT GUIDE
Wärtsilä 31DF
© Copyright by WÄRTSILÄ FINLAND Oy
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COPYRIGHT © 2019 BY WÄRTSILÄ FINLAND Oy
ALL RIGHTS RESERVED. NO PART OF THIS PUBLICATION MAY BE REPRODUCED OR COPIED IN ANY FORM
OR BY ANY MEANS, WITHOUT PRIOR WRITTEN PERMISSION OF THE COPYRIGHT OWNER.
Introduction
This Product Guide provides data and system proposals for the early design
phase of marine engine installations. For contracted projects specific
instructions for planning the installation are always delivered. Any data and
information herein is subject to revision without notice. This 01/2019 issue
replaces all previous issues of the Wärtsilä 31DF Project Guides.
Wärtsilä, Marine Solutions
Vaasa, March 2019
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IntroductionWärtsilä 31DF Product Guide
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Table of contents
1-11. Main Data and Outputs ............................................................................................................................
1-11.1 Maximum continuous output ...............................................................................................................
1-21.2 Reference conditions ...........................................................................................................................
1-21.3 Operation in inclined position (only for Marine Solutions engines) ......................................................
1-31.4 Dimensions and weights .....................................................................................................................
2-12. Operating Ranges ....................................................................................................................................
2-12.1 Engine operating range ........................................................................................................................
2-22.2 Loading capacity ..................................................................................................................................
2-82.3 Low load operation ...............................................................................................................................
2-102.4 Low air temperature ............................................................................................................................
3-13. Technical Data ..........................................................................................................................................
3-13.1 Introduction ..........................................................................................................................................
3-33.2 Wärtsilä 8V31DF ...................................................................................................................................
3-113.3 Wärtsilä 10V31DF .................................................................................................................................
3-193.4 Wärtsilä 12V31DF .................................................................................................................................
3-273.5 Wärtsilä 14V31DF .................................................................................................................................
3-353.6 Wärtsilä 16V31DF .................................................................................................................................
4-14. Description of the Engine ........................................................................................................................
4-14.1 Definitions .............................................................................................................................................
4-14.2 Main components and systems ...........................................................................................................
4-64.3 Time between Inspection or Overhaul & Expected Life Time ..............................................................
4-74.4 Engine storage .....................................................................................................................................
5-15. Piping Design, Treatment and Installation .............................................................................................
5-15.1 Pipe dimensions ...................................................................................................................................
5-25.2 Trace heating ........................................................................................................................................
5-25.3 Pressure class ......................................................................................................................................
5-35.4 Pipe class .............................................................................................................................................
5-45.5 Insulation ..............................................................................................................................................
5-45.6 Local gauges ........................................................................................................................................
5-45.7 Cleaning procedures ............................................................................................................................
5-65.8 Flexible pipe connections .....................................................................................................................
5-85.9 Clamping of pipes ................................................................................................................................
6-16. Fuel Oil System .........................................................................................................................................
6-16.1 Acceptable fuel characteristics ............................................................................................................
6-96.2 Operating principles .............................................................................................................................
6-106.3 Fuel gas system ...................................................................................................................................
6-186.4 External fuel oil system ........................................................................................................................
7-17. Lubricating Oil System ............................................................................................................................
7-17.1 Lubricating oil requirements .................................................................................................................
7-27.2 External lubricating oil system .............................................................................................................
7-87.3 Crankcase ventilation system .............................................................................................................
7-107.4 Flushing instructions ............................................................................................................................
8-18. Compressed Air System ..........................................................................................................................
8-18.1 Instrument air quality ............................................................................................................................
8-18.2 External compressed air system ..........................................................................................................
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Table of contentsWärtsilä 31DF Product Guide
9-19. Cooling Water System .............................................................................................................................
9-19.1 Water quality ........................................................................................................................................
9-29.2 External cooling water system .............................................................................................................
10-110. Combustion Air System .........................................................................................................................
10-110.1 Engine room ventilation ......................................................................................................................
10-210.2 Combustion air system design ...........................................................................................................
11-111. Exhaust Gas System ..............................................................................................................................
11-111.1 Exhaust gas outlet ..............................................................................................................................
11-311.2 External exhaust gas system .............................................................................................................
12-112. Turbocharger Cleaning ..........................................................................................................................
12-112.1 Turbine cleaning system .....................................................................................................................
12-212.2 Compressor cleaning system .............................................................................................................
13-113. Exhaust Emissions .................................................................................................................................
13-113.1 Dual fuel engine exhaust components ...............................................................................................
13-113.2 Marine exhaust emissions legislation .................................................................................................
13-113.3 Methods to reduce exhaust emissions ..............................................................................................
14-114. Automation System ................................................................................................................................
14-114.1 Technical data and system overview .................................................................................................
14-714.2 Functions ...........................................................................................................................................
14-1114.3 Alarm and monitoring signals .............................................................................................................
14-1114.4 Electrical consumers ..........................................................................................................................
14-1314.5 System requirements and guidelines for diesel-electric propulsion ..................................................
15-115. Foundation ..............................................................................................................................................
15-115.1 Steel structure design ........................................................................................................................
15-115.2 Mounting of main engines ..................................................................................................................
15-415.3 Mounting of generating sets ..............................................................................................................
15-515.4 Flexible pipe connections ...................................................................................................................
16-116. Vibration and Noise ................................................................................................................................
16-116.1 External forces & couples ...................................................................................................................
16-416.2 Mass moments of inertia ....................................................................................................................
16-416.3 Air borne noise ...................................................................................................................................
16-416.4 Exhaust noise .....................................................................................................................................
17-117. Power Transmission ...............................................................................................................................
17-117.1 Flexible coupling ................................................................................................................................
17-117.2 Torque flange ......................................................................................................................................
17-117.3 Clutch .................................................................................................................................................
17-117.4 Shaft locking device ...........................................................................................................................
17-217.5 Input data for torsional vibration calculations ....................................................................................
17-317.6 Turning gear ........................................................................................................................................
18-118. Engine Room Layout ..............................................................................................................................
18-118.1 Crankshaft distances ..........................................................................................................................
18-518.2 Space requirements for maintenance ................................................................................................
18-518.3 Transportation and storage of spare parts and tools .........................................................................
18-518.4 Required deck area for service work ..................................................................................................
19-119. Transport Dimensions and Weights .....................................................................................................
19-119.1 Lifting of main engines .......................................................................................................................
19-219.2 Lifting of generating sets ....................................................................................................................
19-319.3 Engine components ...........................................................................................................................
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Wärtsilä 31DF Product GuideTable of contents
20-120. Product Guide Attachments ..................................................................................................................
21-121. ANNEX .....................................................................................................................................................
21-121.1 Unit conversion tables ........................................................................................................................
21-221.2 Collection of drawing symbols used in drawings ...............................................................................
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Table of contentsWärtsilä 31DF Product Guide
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1. Main Data and Outputs
The Wärtsilä 31DF is a 4-stroke, non-reversible, turbocharged and intercooled diesel engine
with direct fuel injection.
310 mmCylinder bore ........................
430 mmStroke ...................................
2 inlet valves, 2 exhaust valvesNumber of valves .................
8, 10, 12, 14 and 16Cylinder configuration .........
50°V-angle .................................
Clockwise, counterclockwiseDirection of rotation .............
720, 750 rpmSpeed ...................................
10.32 - 10.75 m/sMean piston speed ...............
1.1 Maximum continuous output
Table 1-1 Rating table for Wärtsilä 31DF
Generating setsMain enginesCylinder
configuration 750 rpm720 rpm750 rpm
Generator [kVA]Engine [kW]Generator [kVA]Engine [kW][kW]
52804400509042404400W 8V31DF
66005500636053005500W 10V31DF
79206600763063606600W 12V31DF
92407700890074207700W 14V31DF
1056088001018084808800W 16V31DF
The mean effective pressure Pe can be calculated as follows:
where:
mean effective pressure [bar]Pe =
output per cylinder [kW]P =
engine speed [r/min]n =
cylinder diameter [mm]D =
length of piston stroke [mm]L =
operating cycle (4)c =
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1. Main Data and OutputsWärtsilä 31DF Product Guide
1.2 Reference conditions
The output is available within a range of ambient conditions and coolant temperatures specified
in the chapter Technical Data. The required fuel quality for maximum output is specified in the
section Fuel characteristics. For ambient conditions or fuel qualities outside the specification,
the output may have to be reduced.
The specific fuel consumption is stated in the chapter Technical Data. The statement applies
to engines operating in ambient conditions according to ISO 15550:2002 (E).
100 kPatotal barometric pressure
25 °Cair temperature
30 %relative humidity
25 °Ccharge air coolant temperature
Correction factors for the fuel oil consumption in other ambient conditions are given in standard
ISO 15550:2002 (E).
1.3 Operation in inclined position (only for Marine Solutions
engines)
The engine is designed to ensure proper engine operation at inclination positions. Inclination
angle according to IACS requirement M46.2 (1982) (Rev.1 June 2002) - Main and auxiliary
machinery.
Max. inclination angles at which the engine will operate satisfactorily:
Table 1-2 Inclination with Normal Oil Sump
15°
●Permanent athwart ship inclinations (list)
22.5°
●Temporary athwart ship inclinations (roll)
10°
●Permanent fore and aft inclinations (trim)
10°
●Temporary fore and aft inclinations (pitch)
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Wärtsilä 31DF Product Guide1. Main Data and Outputs
Dieses Handbuch passt für folgende Modelle
5
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