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Ship Rules Part 6 Chapter 13, Gas Fuelled Engine Installations

Table 5-2

Classes of piping systems as per DNV rules

Class III

Class II

Class I

Media

°C

MPa (bar)

°C

MPa (bar)

°C

MPa (bar)

and < 170

< 0.7 (7)

and < 300

< 1.6 (16)

or > 300

> 1.6 (16)

Steam

and < 60

< 0.7 (7)

and < 150

< 1.6 (16)

or > 150

> 1.6 (16)

Flammable fluid

-

-

-

-

All

All

Fuel gas

and < 200

< 1.6 (16)

and < 300

< 4 (40)

or > 300

> 4 (40)

Other media

5.5

Insulation

The following pipes shall be insulated:

●

All trace heated pipes

●

Exhaust gas pipes

●

Exposed parts of pipes with temperature > 60°C

Insulation is also recommended for:

●

Pipes between engine or system oil tank and lubricating oil separator

●

Pipes between engine and jacket water preheater

5.6

Local gauges

Local thermometers should be installed wherever a new temperature occurs, i.e. before and
after heat exchangers, etc.

Pressure gauges should be installed on the suction and discharge side of each pump.

5.7

Cleaning procedures

Instructions shall be given at an early stage to manufacturers and fitters how different piping
systems shall be treated, cleaned and protected.

5.7.1

Cleanliness during pipe installation

All piping must be verified to be clean before lifting it onboard for installation. During the
construction time uncompleted piping systems shall be maintained clean. Open pipe ends
should be temporarily closed. Possible debris shall be removed with a suitable method. All
tanks must be inspected and found clean before filling up with fuel, oil or water.

Piping cleaning methods are summarised in table below:

Table 5-3

Pipe cleaning

Methods

System

A,B,C
D,F

1)

Fuel gas

A,B,C,D,F

Fuel oil

A,B,C,D,F

Lubricating oil

5-4

DBAE248994

Wärtsilä 31DF Product Guide

5. Piping Design, Treatment and Installation

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Содержание ?31DF Series

Страница 1: ...PRODUCT GUIDE W rtsil 31DF...

Страница 2: ...ULAR IMPROVEMENTS MODIFICATIONS AND CHANGES CONSEQUENTLY THE PUBLISHER AND COPYRIGHT OWNER OF THIS PUBLICATION CAN NOT ACCEPT ANY RESPONSIBILITY OR LIABILITY FOR ANY EVENTUAL ERRORS OR OMISSIONS IN TH...

Страница 3: ...ted 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 iss...

Страница 4: ...This page intentionally left blank...

Страница 5: ...etween Inspection or Overhaul Expected Life Time 4 7 4 4 Engine storage 5 1 5 Piping Design Treatment and Installation 5 1 5 1 Pipe dimensions 5 2 5 2 Trace heating 5 2 5 3 Pressure class 5 3 5 4 Pipe...

Страница 6: ...s for diesel electric propulsion 15 1 15 Foundation 15 1 15 1 Steel structure design 15 1 15 2 Mounting of main engines 15 4 15 3 Mounting of generating sets 15 5 15 4 Flexible pipe connections 16 1 1...

Страница 7: ...20 1 20 Product Guide Attachments 21 1 21 ANNEX 21 1 21 1 Unit conversion tables 21 2 21 2 Collection of drawing symbols used in drawings DBAE248994 vii Table of contents W rtsil 31DF Product Guide...

Страница 8: ...This page intentionally left blank...

Страница 9: ...1 Rating table for W rtsil 31DF Generating sets Main engines Cylinder configuration 750 rpm 720 rpm 750 rpm Generator kVA Engine kW Generator kVA Engine kW kW 5280 4400 5090 4240 4400 W 8V31DF 6600 55...

Страница 10: ...e humidity 25 C charge 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 onl...

Страница 11: ...3560 6196 6087 W8V31 500 500 300 986 877 1650 1650 4200 6836 6727 W10V31 Weight Liquids Weight Engine W5 W5 W4 W3 W2 W1 W1 H4 H3 H2 H1 H1 Engine 3 3 53 5 54 2 67 67 1585 1153 1600 3115 3115 650 1496 4...

Страница 12: ...0 W14V31 908 908 300 1250 1000 2000 2000 6120 9370 9120 W16V31 Weight Liquids Weight Engine W5 W4 W3 W2 W1 H4 H3 H2 H1 H1 Engine 4 95 72 8 1750 698 1153 1600 3500 650 1496 4633 2926 2926 W12V31 5 5 79...

Страница 13: ...of the oil sump normal wet sump H3 Height from the crankshaft centerline to engine feet fixed mounted H4 Total width of engine W1 Width of engine block at the engine feet W2 Width of oil sump W3 Widt...

Страница 14: ...This page intentionally left blank...

Страница 15: ...load is determined from measured shaft power and actual engine speed The shaft power meter is W rtsil supply The propeller efficiency is highest at design pitch It is common practice to dimension the...

Страница 16: ...s 2 2 Loading capacity Controlled load increase is essential for highly supercharged diesel engines because the turbocharger needs time to accelerate before it can deliver the required amount of air A...

Страница 17: ...rgency diesel opera tion only s Fast loading s Nominal loading s Engine load of MCR 0 0 0 0 30 120 300 100 Fig 2 2 Normal Loading rate variable speed engines 750 rpm NOTE If normal loading rate is cho...

Страница 18: ...ated engine should be used In tug applications the engines have usually reached normal operating temperature before the tug starts assisting The emergency curve is close to the maximum capability of t...

Страница 19: ...te Emergency diesel opera tion only s Fast loading MN80 s Fast loading MN70 s Nominal loading s Engine load of MCR 0 0 0 0 0 20 70 90 300 100 Fig 2 4 Normal Loading rate constant speed engines 720 750...

Страница 20: ...propulsion control The emergency curve is close to the maximum capability of the engine and it shall not be used as the normal limit In dynamic positioning applications loading ramps corresponding to...

Страница 21: ...at has reached nominal operating temperatures or for an engine which has been operated at above 30 load within the last 30 minutes Cyclic wave load taking capability can be evaluated from the figures...

Страница 22: ...ntion is to continue in diesel mode In case the intention is to transfer to gas mode and continue operating in gas mode then blue line gas mode limit is valid also for diesel mode The loading rates ac...

Страница 23: ...e operation and blue line is intended for gas mode operation 2 3 2 Absolute idling Absolute idling declutched main engine disconnected generator Maximum 10 minutes if the engine is to be stopped after...

Страница 24: ...ply Gas mode Low load 5 C High load 10 C Diesel mode Starting 5 C Idling 5 C High load 10 C For further guidelines see chapter Combustion air system design NOTE Air Waste Gate AWG is needed when sucti...

Страница 25: ...el mode and or kJ kWh Gas mode 3 1 1 1 Diesel mode Table 3 1 Constant speed engines DE CPP Aux 750 720rpm MDF HFO Engine load Engine driven pumps 50 75 85 100 2 6 1 6 1 4 1 2 Lube oil 1 0 0 7 0 6 0 5...

Страница 26: ...eed engines CPP 750rpm MDF HFO Engine load Engine driven pumps 50 75 85 100 58 1 57 1 57 1 57 1 Lube oil 21 0 21 0 21 0 21 0 LT Water 21 0 21 0 21 0 21 0 HT Water 3 2 DBAE248994 W rtsil 31DF Product G...

Страница 27: ...ter turbocharger at 100 load TE 517 260 320 270 350 270 350 270 350 270 350 C Temperature after turbocharger at 85 load TE 517 270 310 260 350 260 350 260 350 260 350 C Temperature after turbocharger...

Страница 28: ...re Gas Valve Unit Fuel oil system 1000 100 1000 100 1000 100 1000 100 1000 100 kPa Pressure before HP pumps PT 101 3 6 3 6 3 6 3 6 3 6 m3 h Engine driven pump capacity MDF only 16 24 16 24 16 24 16 24...

Страница 29: ...engine nom 80 80 80 80 80 m3 h Capacity of engine driven pump nom 210 210 210 210 210 kPa Pressure drop over engine total 100 100 100 100 100 kPa Pressure drop in external system max 70 150 70 150 70...

Страница 30: ...dimensioning heat exchangers In arctic option all charge air coolers are in LT circuit Note 3 Validity of the data in diesel mode operation at ambient conditions according to ISO 15550 Lower calorific...

Страница 31: ...285 350 285 350 C Temperature after turbocharger at 85 load TE 517 285 310 285 350 285 350 285 350 285 350 C Temperature after turbocharger at 75 load TE 517 285 330 285 370 285 370 285 370 285 370 C...

Страница 32: ...100 1000 100 1000 100 kPa Pressure before HP pumps PT 101 3 6 3 6 3 6 3 6 3 6 m3 h Engine driven pump capacity MDF only 16 24 16 24 16 24 16 24 16 24 cSt HFO viscosity before the engine 140 140 140 1...

Страница 33: ...m3 h Capacity of engine driven pump nom 210 210 210 210 210 kPa Pressure drop over engine total 100 100 100 100 100 kPa Pressure drop in external system max 70 150 70 150 70 150 70 150 70 150 kPa Pre...

Страница 34: ...nsioning heat exchangers In arctic option all charge air coolers are in LT circuit Note 3 Validity of the data in diesel mode operation at ambient conditions according to ISO 15550 Lower calorific val...

Страница 35: ...re after turbocharger at 100 load TE 517 260 320 270 350 270 350 270 350 270 350 C Temperature after turbocharger at 85 load TE 517 270 310 260 350 260 350 260 350 260 350 C Temperature after turbocha...

Страница 36: ...re Gas Valve Unit Fuel oil system 1000 100 1000 100 1000 100 1000 100 1000 100 kPa Pressure before HP pumps PT 101 3 6 3 6 3 6 3 6 3 6 m3 h Engine driven pump capacity MDF only 16 24 16 24 16 24 16 24...

Страница 37: ...ter engine nom 90 90 90 90 90 m3 h Capacity of engine driven pump nom 210 210 210 210 210 kPa Pressure drop over engine total 100 100 100 100 100 kPa Pressure drop in external system max 70 150 70 150...

Страница 38: ...imensioning heat exchangers In arctic option all charge air coolers are in LT circuit Note 3 Validity of the data in diesel mode operation at ambient conditions according to ISO 15550 Lower calorific...

Страница 39: ...0 285 350 285 350 C Temperature after turbocharger at 85 load TE 517 285 310 285 380 285 350 285 380 285 350 C Temperature after turbocharger at 75 load TE 517 285 330 285 370 285 370 285 370 285 370...

Страница 40: ...100 1000 100 1000 100 kPa Pressure before HP pumps PT 101 3 6 3 6 3 6 3 6 3 6 m3 h Engine driven pump capacity MDF only 16 24 16 24 16 24 16 24 16 24 cSt HFO viscosity before the engine 140 140 140 1...

Страница 41: ...90 m3 h Capacity of engine driven pump nom 210 210 210 210 210 kPa Pressure drop over engine total 100 100 100 100 100 kPa Pressure drop in external system max 70 150 70 150 70 150 70 150 70 150 kPa P...

Страница 42: ...nsioning heat exchangers In arctic option all charge air coolers are in LT circuit Note 3 Validity of the data in diesel mode operation at ambient conditions according to ISO 15550 Lower calorific val...

Страница 43: ...rature after turbocharger at 100 load TE 517 260 320 270 350 270 350 270 350 270 350 C Temperature after turbocharger at 85 load TE 517 270 310 260 350 260 350 260 350 260 350 C Temperature after turb...

Страница 44: ...re Gas Valve Unit Fuel oil system 1000 100 1000 100 1000 100 1000 100 1000 100 kPa Pressure before HP pumps PT 101 7 2 7 2 7 2 7 2 7 2 m3 h Engine driven pump capacity MDF only 16 24 16 24 16 24 16 24...

Страница 45: ...ne nom 110 110 110 110 110 m3 h Capacity of engine driven pump nom 210 210 210 210 210 kPa Pressure drop over engine total 100 100 100 100 100 kPa Pressure drop in external system max 70 150 70 150 70...

Страница 46: ...imensioning heat exchangers In arctic option all charge air coolers are in LT circuit Note 3 Validity of the data in diesel mode operation at ambient conditions according to ISO 15550 Lower calorific...

Страница 47: ...0 285 350 285 350 285 350 C Temperature after turbocharger at 85 load TE 517 285 310 285 350 285 350 285 350 285 350 C Temperature after turbocharger at 75 load TE 517 285 330 285 370 285 370 285 370...

Страница 48: ...100 1000 100 1000 100 kPa Pressure before HP pumps PT 101 7 2 7 2 7 2 7 2 7 2 m3 h Engine driven pump capacity MDF only 16 24 16 24 16 24 16 24 16 24 cSt HFO viscosity before the engine 140 140 140 1...

Страница 49: ...m3 h Capacity of engine driven pump nom 210 210 210 210 210 kPa Pressure drop over engine total 100 100 100 100 100 kPa Pressure drop in external system max 70 150 70 150 70 150 70 150 70 150 kPa Pre...

Страница 50: ...nsioning heat exchangers In arctic option all charge air coolers are in LT circuit Note 3 Validity of the data in diesel mode operation at ambient conditions according to ISO 15550 Lower calorific val...

Страница 51: ...Temperature after turbocharger at 100 load TE 517 260 320 270 350 270 350 270 350 270 350 C Temperature after turbocharger at 85 load TE 517 270 310 260 350 260 350 260 350 260 350 C Temperature afte...

Страница 52: ...re Gas Valve Unit Fuel oil system 1000 100 1000 100 1000 100 1000 100 1000 100 kPa Pressure before HP pumps PT 101 7 2 7 2 7 2 7 2 7 2 m3 h Engine driven pump capacity MDF only 16 24 16 24 16 24 16 24...

Страница 53: ...ngine nom 130 130 130 130 130 m3 h Capacity of engine driven pump nom 210 210 210 210 210 kPa Pressure drop over engine total 100 100 100 100 100 kPa Pressure drop in external system max 70 150 70 150...

Страница 54: ...imensioning heat exchangers In arctic option all charge air coolers are in LT circuit Note 3 Validity of the data in diesel mode operation at ambient conditions according to ISO 15550 Lower calorific...

Страница 55: ...285 350 285 350 285 350 285 350 C Temperature after turbocharger at 85 load TE 517 285 310 285 350 285 350 285 350 285 350 C Temperature after turbocharger at 75 load TE 517 285 330 285 370 285 370 28...

Страница 56: ...100 1000 100 1000 100 kPa Pressure before HP pumps PT 101 7 2 7 2 7 2 7 2 7 2 m3 h Engine driven pump capacity MDF only 16 24 16 24 16 24 16 24 16 24 cSt HFO viscosity before the engine 140 140 140 1...

Страница 57: ...30 m3 h Capacity of engine driven pump nom 210 210 210 210 210 kPa Pressure drop over engine total 100 100 100 100 100 kPa Pressure drop in external system max 70 150 70 150 70 150 70 150 70 150 kPa P...

Страница 58: ...nsioning heat exchangers In arctic option all charge air coolers are in LT circuit Note 3 Validity of the data in diesel mode operation at ambient conditions according to ISO 15550 Lower calorific val...

Страница 59: ...C Temperature after turbocharger at 100 load TE 517 260 320 270 350 270 350 270 350 270 350 C Temperature after turbocharger at 85 load TE 517 270 310 260 350 260 350 260 350 260 350 C Temperature aft...

Страница 60: ...re Gas Valve Unit Fuel oil system 1000 100 1000 100 1000 100 1000 100 1000 100 kPa Pressure before HP pumps PT 101 7 2 7 2 7 2 7 2 7 2 m3 h Engine driven pump capacity MDF only 16 24 16 24 16 24 16 24...

Страница 61: ...ne nom 150 150 150 150 150 m3 h Capacity of engine driven pump nom 210 210 210 210 210 kPa Pressure drop over engine total 100 100 100 100 100 kPa Pressure drop in external system max 70 150 70 150 70...

Страница 62: ...imensioning heat exchangers In arctic option all charge air coolers are in LT circuit Note 3 Validity of the data in diesel mode operation at ambient conditions according to ISO 15550 Lower calorific...

Страница 63: ...285 350 285 350 285 350 285 350 C Temperature after turbocharger at 85 load TE 517 285 310 285 350 285 350 285 350 285 350 C Temperature after turbocharger at 75 load TE 517 285 330 285 370 285 370 2...

Страница 64: ...100 1000 100 1000 100 kPa Pressure before HP pumps PT 101 7 2 7 2 7 2 7 2 7 2 m3 h Engine driven pump capacity MDF only 16 24 16 24 16 24 16 24 16 24 cSt HFO viscosity before the engine 140 140 140 1...

Страница 65: ...m3 h Capacity of engine driven pump nom 210 210 210 210 210 kPa Pressure drop over engine total 100 100 100 100 100 kPa Pressure drop in external system max 70 150 70 150 70 150 70 150 70 150 kPa Pre...

Страница 66: ...all charge air coolers are in LT circuit Note 3 Validity of the data in diesel mode operation at ambient conditions according to ISO 15550 Lower calorific value 42700 kJ kg With engine driven pumps tw...

Страница 67: ...very rigid crankshaft bearing assembly A hydraulic jack supported in the oil sump offers the possibility to lower and lift the main bearing caps e g when inspecting the bearings Lubricating oil is le...

Страница 68: ...cting rod big end bearings BEB monitoring system is as standard 4 2 5 Cylinder liner The cylinder liners are centrifugally cast of a special alloyed cast iron The top collar of the cylinder liner is p...

Страница 69: ...ive The camshafts are driven by the crankshaft through a gear train 4 2 11 Turbocharging and charge air cooling The selected 2 stage turbocharging offers ideal combination of high pressure ratios and...

Страница 70: ...system include the engine driven lubricating oil pump the electrically driven prelubricating oil pump thermostatic valve filters and lubricating oil cooler The lubricating oil pumps are located in th...

Страница 71: ...UNIC includes fuel injection control for engines with electronic fuel injection rate optimized nozzles For more information see chapter Automation system DBAE248994 4 5 4 Description of the Engine W r...

Страница 72: ...omponent HFO operation 1 MDF GAS opera tion HFO operation 1 MDF GAS opera tion Min 72000 Min 96000 24000 32000 Piston 24000 32000 24000 32000 Piston rings 96000 128000 24000 32000 Cylinder liner 48000...

Страница 73: ...torage At delivery the engine is provided with VCI coating and a tarpaulin For storage longer than 3 months please contact W rtsil Finland Oy DBAE248994 4 7 4 Description of the Engine W rtsil 31DF Pr...

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Страница 75: ...ken into consideration Pockets shall be avoided When not possible drain plugs and air vents shall be installed Leak fuel drain pipes shall have continuous slope Vent pipes shall be continuously rising...

Страница 76: ...on will take place particularly if air is not dry Even these velocities can be high in terms of their effect on pressure drop In longer supply lines it is often necessary to restrict velocities to 15...

Страница 77: ...MPa 4 bar The highest point of the pump curve at or near zero flow is 0 1 MPa 1 bar higher than the nominal point and consequently the discharge pressure may rise to 0 5 MPa 5 bar with closed or thro...

Страница 78: ...curs i e before and after heat exchangers etc Pressure gauges should be installed on the suction and discharge side of each pump 5 7 Cleaning procedures Instructions shall be given at an early stage t...

Страница 79: ...used should be protected by a suction strainer During this time the welds in the fuel piping should be gently knocked at with a hammer to release slag and the filter inspected and carefully cleaned a...

Страница 80: ...id and welded to the steel structure of the foundation to prevent vibrations and external forces to the connection which could damage the flexible connections and transmit noise The support must be cl...

Страница 81: ...Fig 5 1 Flexible hoses Drawing V60L0796 below is showing how pipes shall be clamped DBAE248994 5 7 5 Piping Design Treatment and Installation W rtsil 31DF Product Guide...

Страница 82: ...as possible to the flexible connection Next support should be 0 3 0 5 m from the first support First three supports closest to the engine or generating set should be fixed supports Where necessary sli...

Страница 83: ...Fig 5 3 Flange supports of flexible pipe connections 4V60L0796 Fig 5 4 Pipe clamp for fixed support 4V61H0842 DBAE248994 5 9 5 Piping Design Treatment and Installation W rtsil 31DF Product Guide...

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Страница 85: ...ta However if the total content of hydrocarbons C5 and heavier is more than 1 volume W rtsil has to be contacted for further evaluation 3 Hydrogen content higher than 3 volume has to be considered pro...

Страница 86: ...temperature before the engine see the Installation Manual Table 6 2 Light fuel oils Test method s and references Category ISO F Lim it Unit Characteristics DFB D M B DFZ D M Z DFA D M A DMX ISO 3104 1...

Страница 87: ...table for ship s design and intended voyage g If the sample is dyed and not transparent see ISO 8217 2017 E standard for details related to water analysis limits and test methods h The requirement is...

Страница 88: ...perating the engine in back up or diesel mode Use of these fuel qualities as a pilot fuel in gas mode is not allowed but a fuel quality fulfilling the distillate fuel specification included in chapter...

Страница 89: ...nal cases above 900 Most bunkers remain in the max 850 to 870 range at the moment CCAI value cannot always be considered as an accurate tool to determine fuels ignition properties especially concernin...

Страница 90: ...ematic viscosity at 50 C max ISO 3675 or ISO 12185 991 0 1010 0 a 991 0 1010 0 a kg m3 Density at 15 C max ISO 8217 Annex F 870 850 CCAI max f ISO 8754 or ISO 14596 Statutory require ments but max 4 5...

Страница 91: ...n properties especially concerning fuels originating from modern and more complex refinery processes g Sodium contributes to hot corrosion on exhaust valves when combined with high sulphur and vanadiu...

Страница 92: ...470 100 mg kg Sodium max IP 501 or IP 470 30 mg kg Sodium bef engine max IP 501 IP 470 or ISO 10478 30 mg kg Aluminium Silicon max IP 501 IP 470 or ISO 10478 15 mg kg Aluminium Silicon bef engine max...

Страница 93: ...installations or adversely affects the performance of the engines or is harmful to personnel or contributes overall to additional air pollution NOTE b if not within the given limits the maximum sulph...

Страница 94: ...mon rail system Electronic fuel injection rate optimized nozzle system Pilot fuel injection is active in order to avoid clogging of pilot nozzle 6 3 Fuel gas system 6 3 1 External fuel gas system 6 3...

Страница 95: ...ystem components Gas detector 01 Gas double wall system ventilation fan 02 W rtsil Gas valve unit 10N05 W rtsil LNGPAC 10N08 Size Pipe connections DN50 DN65 Gas inlet 108 DN25 DN50 16V Gas system vent...

Страница 96: ...he ventilation air is taken from both inlets and lead through the annular space of the double wall pipe to the GVU room or to the enclosure of the gas valve unit From the enclosure of the gas valve un...

Страница 97: ...double block and bleed function will relief the pressure trapped between the block valves after closing of the block valves The block valves V03 and V05 and inert gas valve V07 are operated as fail to...

Страница 98: ...Pressure transmitter gas inlet PT01 Mass flow meter FT01 Pressure transmitter inert gas PT05 Pressure manometer gas inlet PI02 Temperature sensor gas inlet TE01 Pressure transmitter control air PT06 P...

Страница 99: ...ig 6 5 Main dimensions of the enclosed GVU DAAF060741A Fig 6 6 Main dimensions of the open GVU DAAW010186A 1266 Height 2000 Width 950 Depth DBAE248994 6 15 6 Fuel Oil System W rtsil 31DF Product Guide...

Страница 100: ...e transmitter P01 Shut off valve V08 Manual shut off valve V01 Local pressure indicator P02 Shut off valve V09 Vent valve V02 Pressure transmitter P03 Pressure regulator V10 First block valve V03 Pres...

Страница 101: ...posal e g a suitable furnace can also be considered However this kind of arrangement has to be accepted by classification society on a case by case basis NOTE All breathing and ventilation pipes that...

Страница 102: ...value that can be used as guidance The required gas pressure to the engine depends on the engine load This is regulated by the GVU 6 4 External fuel oil system The design of the external fuel system...

Страница 103: ...ility especially when comparing different suppliers Typically a totally different value than XX micron absolute e g a real example 10 micron nominal e10 60 approx 60 micron absolute XX micron absolute...

Страница 104: ...parallel to the nearest viscosity temperature line in the diagram Example 2 Known viscosity 60 cSt at 50 C K The following can be read along the dotted line viscosity at 80 C 20 cSt temperature at fu...

Страница 105: ...1T04 Clean leak fuel is drained by gravity from the engine The fuel should be collected in a separate clean leak fuel tank from where it can be pumped to the day tank and reused without separation Th...

Страница 106: ...th gravity disc are used then each stand by separator should be operated in series with another separator so that the first separator acts as a purifier and the second as clarifier This arrangement ca...

Страница 107: ...ty and recommended throughput of the separator The pump should be protected by a suction strainer mesh size about 0 5 mm An approved system for control of the fuel feed rate to the separator is requir...

Страница 108: ...re the separator The heaters to be provided with safety valves and drain pipes to a leakage tank so that the possible leakage can be detected 6 4 4 5 Separator 1S01 1S02 Based on a separation time of...

Страница 109: ...uld be located directly beneath the separators or as close as possible below the separators unless it is integrated in the separator unit The sludge pipe must be continuously falling DBAE248994 6 25 6...

Страница 110: ...04 OD28 Leak fuel drain clean fuel 1033 Fine filter MDF 1F05 DN32 Leak fuel drain dirty fuel 1041 Suction strainer MDF 1F07 DN32 Leak fuel drain dirty fuel 1042 Flow meter MDF 1I03 DN32 Leak fuel drai...

Страница 111: ...lean fuel 1033 Fine filter MDF 1F05 DN32 Leak fuel drain dirty fuel 1041 Suction strainer MDF 1F07 DN32 Leak fuel drain dirty fuel 1042 Flow meter MDF 1I03 DN32 Leak fuel drain dirty fuel 1043 Stand b...

Страница 112: ...ak fuel drain clean fuel 1033 Fine filter MDF 1F05 DN32 Leak fuel drain dirty fuel 1041 Suction strainer MDF 1F07 DN32 Leak fuel drain dirty fuel 1042 Flow meter MDF 1I03 DN32 Leak fuel drain dirty fu...

Страница 113: ...flat pressure versus flow curve In installations where MDF is fed directly from the MDF tank 1T06 to the circulation pump a suction strainer 1F07 with a fineness of 0 5 mm shall be installed to prote...

Страница 114: ...eed circulation pump capacity Design flow 1 6 MPa 16 bar Design pressure 34 m absolute mesh size 50 75 ISO16889 Fineness Maximum permitted pressure drops at 14 cSt 20 kPa 0 2 bar clean filter 80 kPa 0...

Страница 115: ...ar Max pressure drop fuel oil 60 kPa 0 6 bar Max pressure drop water min 15 Margin heat rate fouling 50 150 C Design temperature MDF HFO installa tion DBAE248994 6 31 6 Fuel Oil System W rtsil 31DF Pr...

Страница 116: ...eration tank booster unit 1T08 Suction filter booster unit 1F06 Changeover valve 1V01 Automatic filter booster unit 1F08 Pressure control valve booster unit 1V03 Flow meter booster unit 1I01 Venting v...

Страница 117: ...ter unit 1F06 Changeover valve 1V01 Suction strainer MDF 1F07 Pressure control valve MDF 1V02 Automatic filter booster unit 1F08 Pressure control valve booster unit 1V03 Flow meter booster unit 1I01 O...

Страница 118: ...chapter Technical data 6 4 6 3 Feeder booster unit 1N01 A completely assembled feeder booster unit can be supplied This unit comprises the following equipment Two suction strainers Two fuel feed pump...

Страница 119: ...manually cleaned filter in the bypass line The automatic filter must be installed before the heater between the feed pump and the de aeration tank and it should be equipped with a heating jacket Overh...

Страница 120: ...pressure pumps at operating temperature Heater booster unit 1E02 The heater must be able to maintain a fuel viscosity of 14 cSt at maximum fuel consumption with fuel of the specified grade and a give...

Страница 121: ...n filter 20 kPa 0 2 bar Alarm 80 kPa 0 8 bar Maximum permitted pressure drops at 14 cSt 6 4 6 5 Overflow valve HFO 1V05 When several engines are connected to the same feeder booster unit an overflow v...

Страница 122: ...fuel pipes at the engine connections 101 and 102 are disconnected and the supply and return lines are connected with a temporary pipe or hose on the installation side All filter inserts are removed ex...

Страница 123: ...Fuel S content m m Lubricating oil BN Fuel standard Category 4 5 30 55 GRADE NO 4D GRADE NO 5 6 DMC RMA10 RMK55 DC A30 K700 RMA10 RMK700 ASTM D 975 01 ASTM D 396 04 BS MA 100 1996 CIMAC 2003 ISO 8217...

Страница 124: ...relubricating oil pump 2F04 System oil tank 2T01 Suction strainer stand by pump 2F06 Sludge tank 2T06 Separator unit 2N01 Pressure control valve 2V03 Pre lube oil pump 2P02 12V 16V 8V 10V Pipe connect...

Страница 125: ...y pump 2P04 Pressure control valve 2V03 Separator 2S01 12V 16V 8V 10V Pipe connections DN200 DN250 Lube oil to el driven pump 207 DN150 DN150 Lube oil from el driven pump 208 DN40 DN40 Lubricating oil...

Страница 126: ...2N01 Renovated oil tank 2T05 Separator pump separator unit 2P03 Sludge tank 2T06 Separator 2S01 12V 16V 8V 10V Pipe connections DN40 DN40 Lubricating oil from separator and filling 213 DN40 DN40 Lubr...

Страница 127: ...the system oil tank When the engine is running the temperature in the system oil tank located in the ship s bottom is normally 65 75 C To enable separation with a stopped engine the heater capacity mu...

Страница 128: ...nk Further on the return pipes must not be located in the same corner of the tank as the suction pipe of the pump The suction pipe of the pump should have a trumpet shaped or conical inlet to minimise...

Страница 129: ...ion strainers 2F01 2F04 2F06 It is recommended to install a suction strainer before each pump to protect the pump from damage The suction strainer and the suction pipe must be amply dimensioned to min...

Страница 130: ...e pump and the geometric suction height must be specially considered with regards to high viscosity Design data see Technical data Capacity 350 kPa 3 5 bar Max pressure safety valve 100 C Design tempe...

Страница 131: ...se from crankcase ventilation outlet extra mass on the oil mist detector must be avoided There should be a fixing point on both sides of the pipe at the support Absolutely rigid mounting between the p...

Страница 132: ...Leave the separator running also after the flushing procedure this to ensure that any remaining contaminants are removed If an electric motor driven stand by pump 2P04 is installed then piping shall b...

Страница 133: ...nliness a LO sample shall be taken by the shipyard after the flushing is completed The properties to be analyzed are Viscosity BN AN Insolubles Fe and Particle Count Commissioning procedures shall in...

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Страница 135: ...e 0 7 MPa 7 bar Nominal pressure 3 C Dew point temperature 1 mg m3 Max oil content 3 m Max particle size 8 2 External compressed air system The design of the starting air system is partly determined b...

Страница 136: ...ct determination of the minimum capacity the rules of the classification societies must be followed 8 2 2 Oil and water separator 3S01 An oil and water separator should always be installed in the pipe...

Страница 137: ...arting attempt has elapsed A failed start can consume two times the air volume stated in technical data If the ship has a class notation for unattended machinery spaces then the starts are to be demon...

Страница 138: ...the water separator between starting air compressor and starting air vessels create and loosen abrasive rust from the piping fittings and receivers Therefore it is recommended to install a filter bef...

Страница 139: ...the engines It is important that water of acceptable quality and approved corrosion inhibitors are used directly when the system is filled after completed installation 9 1 1 Corrosion inhibitors The...

Страница 140: ...er cooling system Some cooling water additives react with zinc forming harmful sludge Zinc also becomes nobler than iron at elevated temperatures which causes severe corrosion of engine components Fig...

Страница 141: ...to HT circuit 406 DN150 DN125 DN100 HT water from stand by pump 408 OD12 OD12 OD12 HT water airvent from air cooler 416 DN150 D125 DN100 LT water inlet 451 DN150 D125 DN100 LT water outlet 452 DN150 D...

Страница 142: ...r 4V08 Evaporator unit 4N02 Temperature control valve charge air 4V09 Circulating pump preheater 4P04 Transfer pump 4P09 16V 12V 14V 8V 10V Pipe connections DN150 DN125 DN100 HT water inlet 401 DN150...

Страница 143: ...by pump HT 4P03 Circulating pump preheater 4P04 16V 12V 14V 8V 10V Pipe connections DN150 DN125 DN100 HT water inlet 401 DN150 DN125 DN100 HT water outlet 402 OD18 OD18 OD18 HT water air vent 404 DN1...

Страница 144: ...er 4V08 Evaporator unit 4N02 Temperature control valve charge air 4V09 Circulating pump preheater 4P04 Transfer pump 4P09 16V 12V 14V 8V 10V Pipe connections DN150 DN125 DN100 HT water inlet 401 DN150...

Страница 145: ...urned back to the sea chest in order to prevent ice slush from blocking the sea water filters An example flow diagram of the arctic sea water system is shown below Fig 9 5 Example flow diagram of arct...

Страница 146: ...rols the maximum temperature of the water that is mixed with HT water from the engine outlet before the HT pump The control valve can be either self actuated or electrically actuated Especially in ins...

Страница 147: ...ansion of the coolant serves for venting of the circuits and provides a sufficient static pressure for the circulating pumps Design data min 10 of the total system volume Volume NOTE The maximum press...

Страница 148: ...recommended also for engines that operate exclusively on marine diesel fuel The energy required for preheating of the HT cooling water can be supplied by a separate source or by a running engine ofte...

Страница 149: ...s Electric or steam heaters Circulating pump Control cabinet for heaters and pump Set of thermometers Non return valve Safety valve 9 2 14 Throttles Throttles orifices are to be installed in all by pa...

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Страница 151: ...n note also that the earlier mentioned demand on 30 air exchanges hour has to be fulfilled is then calculated using the formula where qv air flow m s total heat emission to be evacuated kW air density...

Страница 152: ...er with air filter DAAF391752 Fig 10 2 Engine room ventilation air duct connected to the turbocharger DAAF391711 10 2 Combustion air system design Usually the combustion air is taken from the engine r...

Страница 153: ...t is max 1 5 kPa The duct should be provided with a step less change over flap to take the air from the engine room or from outside depending on engine load and air temperature For very cold condition...

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Страница 155: ...ine Driving end Free end 0 45 90 0 45 90 W 8V31DF W 10V31DF TC location Engine Driving end Free end 0 45 0 45 W 12V31DF W 14V31DF W 16V31DF Fig 11 2 Exhaust pipe connections W12V W16V31 DAAF343596A NO...

Страница 156: ...mm Engine 700 DN550 W 8V31DF 800 DN550 W 10V31DF B mm A mm Engine 900 DN450 W 12V31DF 900 DN450 W 14V31DF 1000 DN450 W 16V31DF Fig 11 4 Exhaust pipe diameters and support DAAF351275A DAAF351507A 11 2...

Страница 157: ...missible pressure for any of the components in the system Other components in the system might have a lower maximum pressure limit The consequences of a possible gas explosion can be minimized with pr...

Страница 158: ...sequence is automatically controlled by the GVU Fig 11 6 Exhaust gas ventilation arrangement DAAF315146 11 2 3 Relief devices rupture discs Explosion relief devices such as rupture discs are to be ins...

Страница 159: ...LAS regulations Surface temperatures must be below 220 C on whole engine operating range 11 2 5 Supporting It is very important that the exhaust pipe is properly fixed to a support that is rigid in al...

Страница 160: ...harger outlet serves to minimise the external forces on the turbocharger and thus prevent excessive vibrations and possible damage All exhaust gas bellows must be of an approved type 11 2 8 SCR unit 1...

Страница 161: ...d power through a number of correction factors The spectrum of the required attenuation in the exhaust system is achieved when the free field sound power A is transferred into sound pressure B at a ce...

Страница 162: ...e optimization is made according to the engine characteristics to the sound level requirements and to other equipment installed in the exhaust gas system like SCR exhaust gas boiler or scrubbers The C...

Страница 163: ...antee for the noise level after the silencer When included in the scope of supply the standard silencer is of the absorption type equipped with a spark arrester It is also provided with a soot collect...

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Страница 165: ...a detachable rubber hose The rubber hose is connected with quick couplings and the length of the hose is normally 10 m One dosing unit can be used for several engines Water supply Fresh water 0 3 MPa...

Страница 166: ...The compressor side of the turbocharger is cleaned with the same equipment as the turbine NOTE If the turbocharger suction air is below 5 C washing is not possible 12 2 DBAE248994 W rtsil 31DF Product...

Страница 167: ...or any ordinary diesel engine and the engine will be delivered with an EIAPP certificate to show compliance with the MARPOL Annex VI 13 2 Marine exhaust emissions legislation 13 2 1 International Mari...

Страница 168: ...ines same methods as mentioned above can be used to reduce exhaust emissions when running in diesel mode In gas mode there is no need for scrubber or SCR Refer to the W rtsil Environmental Product Gui...

Страница 169: ...municated over a Modbus TCP connection to external systems 14 1 Technical data and system overview 14 1 1 Ingress protection The ingress protection class of the system is IP54 14 1 2 Ambient temp for...

Страница 170: ...SM The above equipment and instrumentation are prewired on the engine 14 1 3 Local operator panel The Local operator panel LOP consist of a display unit LDU with touch screen and pushbuttons as well a...

Страница 171: ...mation system on the engine and provides isolation from other power supply systems onboard The cabinet is designed for bulkhead mounting protection degree IP44 max ambient temperature 50 C The power u...

Страница 172: ...rface unit B 1 x 2 x 0 75 mm2 1 x 2 x 0 75 mm2 1 x 2 x 0 75 mm2 24 x 0 75 mm2 24 x 0 75 mm2 Engine Propulsion Control System Engine Power Management System Main Switch board C 2 x 0 75 mm2 Power unit...

Страница 173: ...wer supply 3 x 2 x 0 75 mm2 Power unit Gas Valve Unit I 3 x 2 x 0 75 mm2 2 x 5 x 0 75 mm2 Gas Valve Unit Exhaust gas fan and pre lube starter I 4 x 2 x 0 75 mm2 3 x 2 5 x 2 5 mm2 Exhaust gas fan and p...

Страница 174: ...Fig 14 4 Typical signal overview Main engine 14 6 DBAE248994 W rtsil 31DF Product Guide 14 Automation System...

Страница 175: ...s Turning device engaged Pre lubricating pressure low override if black out input is high and within last 30 minutes after the pressure has dropped below the set point of 0 8 bar Stop signal to engine...

Страница 176: ...only the diesel fuel system The blackout signal disables some of the start blocks to get the engine running as quickly as possible All checks during start up that are related to gas fuel system or pi...

Страница 177: ...ransferring between operating modes the operator should consider the following To prevent an overload of the gas supply system transfer one engine at a time to gas operating mode Before a transfer com...

Страница 178: ...d with increase decrease signals The electronic speed control handles load sharing between parallel engines fuel limiters and various other control functions e g ready to open close clutch speed filte...

Страница 179: ...V W rtsil 31DF 14 4 1 2 Pre lubricating oil pump The pre lubricating oil pump must always be running when the engine is stopped The engine control system handles start stop of the pump automatically v...

Страница 180: ...control system starts the pump automatically via a motor starter if the cooling water pressure drops below a preset level when the engine is running 14 4 1 7 Stand by pump LT cooling water if applica...

Страница 181: ...power back into the network The diesel generator can absorb max 5 reverse power 6 The power management system performs loading and unloading of generators in a speed droop system and it usually also...

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Страница 183: ...her with the fitted bolts The distance sleeve must be mounted between the seating top plate and the lower nut in order to provide a sufficient guiding length for the fitted bolt in the seating top pla...

Страница 184: ...tion of the supporting surface should be 1 100 and it should be machined so that a contact surface of at least 75 is obtained against the chocks Recommended chock dimensions are 250 x 200 mm and the c...

Страница 185: ...ly mounted on rubber elements The transmission of forces emitted by the engine is 10 20 when using resilient mounting For resiliently mounted engines a speed range of 500 750 rpm is generally availabl...

Страница 186: ...nd number of cylinders propeller shaft speed RPM and number of propeller blades The selected number of mounts and their final position is shown in the generating set drawing Fig 15 2 Recommended desig...

Страница 187: ...all connections must be flexible and no grating nor ladders may be fixed to the engine or generating set When installing the flexible pipe connections unnecessary bending or stretching should be avoid...

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Страница 189: ...id natural frequencies of decks bulkheads and superstructures close to the excitation frequencies The double bottom should be stiff enough to avoid resonances especially with the rolling frequencies F...

Страница 190: ...couples and forces zero or insignificant 16 2 DBAE248994 W rtsil 31DF Product Guide 16 Vibration and Noise...

Страница 191: ...1 1 144 150 5 5 108 112 5 34 34 72 75 18 16 36 37 5 720 750 12V31DF 1 1 168 175 1 1 126 131 27 27 84 88 7 7 42 44 720 750 14V31DF 1 1 192 200 1 1 144 150 17 17 96 100 22 22 48 50 720 750 16V31DF coup...

Страница 192: ...1pW Diesel Mode Total 8000 4000 2000 1000 500 250 125 Hz 125 114 116 119 121 115 110 100 8V 125 114 118 121 118 115 107 100 10V W31 Engine A weighted Sound Power Level in Octave Frequency Band dB ref...

Страница 193: ...ded A clutch is also required when two or more engines are connected to the same driven machinery such as a reduction gear To permit maintenance of a stopped engine clutches must be installed in twin...

Страница 194: ...ss of shafts between rotating masses Material of shafts including tensile strength and modulus of rigidity Gear ratios Drawing number of the diagram Propeller and shafting A mass elastic diagram or pr...

Страница 195: ...tia of all parts of the coupling Number of flexible elements Linear progressive or degressive torsional stiffness per element Dynamic magnification or relative damping Nominal torque permissible vibra...

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Страница 197: ...shaft distances are to be arranged in order to provide sufficient space between engines for maintenance and operation 18 1 1 Main engines Fig 18 1 W8V31 W10V31 turbocharger in free end DAAF324239A DBA...

Страница 198: ...Fig 18 2 W8V31 W10V31 turbocharger in driving end DAAF353762A Fig 18 3 W12V31 W14V31 W16V31 turbocharger in free end DAAF392987 18 2 DBAE248994 W rtsil 31DF Product Guide 18 Engine Room Layout...

Страница 199: ...Fig 18 4 W12V31 W14V31 W16V31 turbocharger in driving end DAAF393139 All dimensions in mm DBAE248994 18 3 18 Engine Room Layout W rtsil 31DF Product Guide...

Страница 200: ...2 Generating sets Fig 18 5 V engines turbocharger in free end DAAF363645 D C B A Engine 2300 3800 2620 2200 W 8V31DF All dimensions in mm 18 4 DBAE248994 W rtsil 31DF Product Guide 18 Engine Room Lay...

Страница 201: ...maintenance platforms should be of non slippery material grating or chequer plate NOTE Working Platforms should be designed and positioned to prevent personnel slipping tripping or falling on or betw...

Страница 202: ...ervice space requirement 18 4 1 1 Service space requirement main engine Fig 18 6 Service space requirement Main engine W8V31 W10V31 DAAF443904 18 6 DBAE248994 W rtsil 31DF Product Guide 18 Engine Room...

Страница 203: ...Fig 18 7 Service space requirement Main engine W12V31 W14V31 W14V31 DAAF438352 DBAE248994 18 7 18 Engine Room Layout W rtsil 31DF Product Guide...

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Страница 205: ...ansport Dimensions and Weights 19 1 Lifting of main engines Fig 19 1 Lifting of main engines DAAF336773C All dimensions in mm DBAE248994 19 1 19 Transport Dimensions and Weights W rtsil 31DF Product G...

Страница 206: ...19 2 Lifting of generating sets Fig 19 2 Lifting of generating sets DAAF341224 19 2 DBAE248994 W rtsil 31DF Product Guide 19 Transport Dimensions and Weights...

Страница 207: ...135 730 W 12V31DF 625 912 1135 730 W 14V31DF 625 912 1135 730 W 16V31DF Fig 19 4 Charge air cooler HP Dimensions mm Weight kg Engine I H G 625 850 1155 830 W 8V31DF 625 850 1155 830 W 10V31DF 558 639...

Страница 208: ...with suction branch 1568 W 10V31DF 876 1411 with filter or 1861 with suction branch 1020 W 12V31DF 876 1411 with filter or 1861 with suction branch 1020 W 14V31DF 876 1411 with filter or 1861 with suc...

Страница 209: ...shell 10 72 4 Piston 2 94 7 Split gear wheel 11 307 Cylinder liner 3 21 6 Small intermediate gear 12 400 Cylinder head 4 60 6 Large intermediate gear 13 5 2 Inlet valve 5 61 8 Camshaft drive gear 14 3...

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Страница 211: ...and PDF format Engine outline drawings are available not only in 2D drawings in PDF DXF format but also in 3D models in near future Please consult your sales contact at W rtsil for more information En...

Страница 212: ...This page intentionally left blank...

Страница 213: ...ar kPa Moment of inertia and torque conversion factors Power conversion Multiply by To Convert from Multiply by To Convert from 23 730 lbft2 kgm2 1 360 hp metric kW 737 562 lbf ft kNm 1 341 US hp kW F...

Страница 214: ...21 2 Collection of drawing symbols used in drawings Fig 21 1 List of symbols DAAE000806D 21 2 DBAE248994 W rtsil 31DF Product Guide 21 ANNEX...

Страница 215: ......

Страница 216: ...cycle power solutions for the marine and energy markets By emphasising technological innovation and total efficiency W rtsil maximises the environmental and economic performance of the vessels and pow...

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