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Figure 6.2

Internal fuel gas system, V-engines (DAAE080852)

System components

Cylinder

03

Safety filter

01

Venting valve

04

Gas admission valve

02

Sensors and indicators

Knock sensor, cyl A#/B#

SE6014A/B..

Main gas pressure

PT901

Standard

Pressure class

Size

Pipe connections

ISO 7005-1

PN16

DN80

Gas inlet

108

ISO 7005-1

PN40

DN32

Gas system ventilation

708A/B

M42 x 2

Air inlet to double wall gas system

726A/B

When operating the engine in gas mode, the gas is injected through gas admission valves into the inlet
channel of each cylinder. The gas is mixed with the combustion air immediately upstream of the inlet valve
in the cylinder head. Since the gas valve is timed independently of the inlet valve, scavenging of the cylinder
is possible without risk that unburned gas is escaping directly from the inlet to the exhaust.

The annular space in double wall piping is ventilated artificially by underpressure created by ventilation
fans. The air inlet to the annular space is located at the engine. The ventilation air is to be taken from a
location outside the engine room, through dedicated piping. In addition, the ventilation requirements from
the project specific classification society is to be considered in the design.

44

Product Guide Wärtsilä 34DF - 3/2012

Product Guide
6. Fuel System

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Содержание 12V34DF

Страница 1: ...W RTSIL 34DF PRODUCT GUIDE...

Страница 2: ......

Страница 3: ...AND AUTHORITATIVE INFORMATION REGARDING THE SUBJECTS COVERED AS WAS AVAILABLE AT THE TIME OF WRITING HOWEVER THE PUBLICATION DEALS WITH COMPLICATED TECHNICAL MATTERS AND THE DESIGN OF THE SUBJECT AND...

Страница 4: ...ping Design Treatment and Installation 29 5 1 Pipe dimensions 30 5 2 Trace heating 30 5 3 Pressure class 31 5 4 Pipe class 31 5 5 Insulation 32 5 6 Local gauges 32 5 7 Cleaning procedures 33 5 8 Flexi...

Страница 5: ...15 3 Mounting of generating sets 141 15 4 Flexible pipe connections 142 16 Vibration and Noise 142 16 1 External forces and couples 143 16 2 Torque variations 143 16 3 Mass moments of inertia 143 16 4...

Страница 6: ...167 21 1 Unit conversion tables 168 21 2 Collection of drawing symbols used in drawings vi Product Guide W rtsil 34DF 3 2012 Product Guide Table of Contents...

Страница 7: ...0 rpm Speed 9 6 10 0 m s Mean piston speed 1 2 Maximum continuous output Table 1 1 Rating table for W rtsil 34DF Generating sets Main engines 750 rpm Cylinder configuration 750 rpm 720 rpm Generator k...

Страница 8: ...allowed The dew point shall be calculated for the specific site conditions The minimum charge air re ceiver temperature shall be above the dew point otherwise condensation will occur in the charge ai...

Страница 9: ...raph above nor lower heating value above 36 MJ m3 N Values are given in m3N is at 0 C and 101 3 kPa If the gas pressure is lower than required a pressure booster unit can be installed before the gas r...

Страница 10: ...ines operating in ambient conditions according to ISO 3046 1 2002 E 100 kPa total barometric pressure 25 C air temperature 30 relative humidity 25 C charge air coolant temperature Correction factors f...

Страница 11: ...4DF 250 5140 1155 500 2345 2385 2550 6750 W rtsil 9L34DF Weight WE3 LE5 WE6 HE6 HE5 LE3 WE5 WE2 Engine 33 3 880 505 360 710 1780 1145 1425 1350 W rtsil 6L34DF 46 8 880 505 360 420 1780 1150 1425 1350...

Страница 12: ...0 3020 2335 7735 W rtsil 16V34DF Weight WE2 LE5 WE6 HE6 HE5 WE4 LE3 WE5 Engine 56 1 1590 590 600 710 1915 850 1735 1510 W rtsil 12V34DF 70 7 1590 590 600 420 1915 850 1735 1510 W rtsil 16V34DF All dim...

Страница 13: ...900 8700 W 6L34DF 84 1055 1630 2345 4180 2200 2510 2890 3845 1150 8850 10475 W 9L34DF 96 1375 1700 2120 4365 2200 2620 3060 3775 1735 7955 10075 W 12V34DF 121 1375 1850 2120 4515 2200 2620 3060 3765 1...

Страница 14: ...from measured shaft power and actual engine speed The shaft power meter is W rtsil supply The propulsion control must also include automatic limitation of the load increase rate Maximum loading rates...

Страница 15: ...de Faster loading may result in alarms knock and undesired trips to diesel This ramp can also be used as normal loading rate in diesel mode once the engine has attained normal operating temperature Th...

Страница 16: ...ion than 20 s from 100 to 0 without automatic transfer to diesel first 2 2 2 Electric propulsion Figure 2 3 Increasing load successively from 0 to 100 MCR The propulsion control and the power manageme...

Страница 17: ...res that the engines are protected from load steps exceeding their maximum load acceptance capability If fast load shedding is complicated to implement or undesired the instant load step capacity can...

Страница 18: ...elow 20 load on HFO or below 10 load on MDF or gas Maximum 100 hours continuous operation At intervals of 100 operating hours the engine must be loaded to minimum 70 of the rated output Operation abov...

Страница 19: ...te 4 7710 7710 7710 kJ kWh Total energy consumption at 100 load 8130 8190 8190 kJ kWh Total energy consumption at 75 load 8350 8890 8890 kJ kWh Total energy consumption at 50 load 7629 7629 7629 kJ kW...

Страница 20: ...mp nom 35 35 35 kPa Pressure drop over charge air cooler 200 2 0 200 2 0 200 2 0 kPa Pressure drop in external system max 70 150 70 150 70 150 kPa Pressure from expansion tank 250 250 250 kPa Delivery...

Страница 21: ...on at 75 load 8350 8890 8890 kJ kWh Total energy consumption at 50 load 7629 7629 7629 kJ kWh Fuel gas consumption at 100 load 8010 8067 8067 kJ kWh Fuel gas consumption at 75 load 8153 8677 8677 kJ k...

Страница 22: ...p in external system max 70 150 70 150 70 150 kPa Pressure from expansion tank 250 250 250 kPa Delivery head of stand by pump Starting air system 3000 3000 3000 kPa Pressure nom PT 301 1500 1500 1500...

Страница 23: ...umption at 75 load 8170 8750 8750 kJ kWh Total energy consumption at 50 load 7543 7543 7543 kJ kWh Fuel gas consumption at 100 load 7839 7972 7972 kJ kWh Fuel gas consumption at 75 load 7972 8534 8534...

Страница 24: ...drop in external system max 70 150 70 150 70 150 kPa Pressure from expansion tank 250 250 250 kPa Delivery head of stand by pump Starting air system 3000 3000 3000 kPa Pressure nom PT 301 1500 1500 1...

Страница 25: ...y consumption at 75 load 8170 8750 8750 kJ kWh Total energy consumption at 50 load 7543 7543 7543 kJ kWh Fuel gas consumption at 100 load 7839 7972 7972 kJ kWh Fuel gas consumption at 75 load 7972 853...

Страница 26: ...rop in external system max 70 150 70 150 70 150 kPa Pressure from expansion tank 250 250 250 kPa Delivery head of stand by pump Starting air system 3000 3000 3000 kPa Pressure nom PT 301 1500 1500 150...

Страница 27: ...ombined flywheel thrust bearing is located at the driving end of the engine The oil sump a light welded design is mounted on the engine block from below and sealed by O rings The oil sump a light weld...

Страница 28: ...well controlled lubrication oil flow to the cylinder liner during all operating conditions Oil is fed through the connecting rod to the cooling spaces of the piston The piston cooling operates accord...

Страница 29: ...mission valves are controlled by the engine control system to regulate engine speed and power The valves are located on the cylinder head for V engines or on the intake duct of the cylinder head for i...

Страница 30: ...piping is of double wall shielded type and well protected inside the hot box The feed pipes distribute the pilot fuel from the common rail to the injection valves The pilot diesel injection part of t...

Страница 31: ...odular embedded automation system W rtsil Unified Controls UNIC The UNIC system have hardwired interface for control functions and a bus communication interface for alarm and monitoring A engine safet...

Страница 32: ...4 3 Cross section of the engine Figure 4 2 Cross section of the in line engine 26 Product Guide W rtsil 34DF 3 2012 Product Guide 4 Description of the Engine...

Страница 33: ...Figure 4 3 Cross section of the V engine Product Guide W rtsil 34DF 3 2012 27 Product Guide 4 Description of the Engine...

Страница 34: ...00 48000 60000 12000 20000 16000 24000 Piston 12000 20000 16000 24000 12000 20000 16000 24000 Piston rings 60000 100000 60000 100000 12000 20000 16000 24000 Cylinder liner 60000 100000 60000 100000 12...

Страница 35: ...nto 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 Flan...

Страница 36: ...inlet of the engine should be max 0 1 MPa 1 bar when the bottle pressure is 3 MPa 30 bar It is essential that the instrument air pressure feeding to some critical control instrumentation is not allowe...

Страница 37: ...lasses DNV or groups ABS depending on pressure temperature and media The pipe class can determine Type of connections to be used Heat treatment Welding procedure Test method Systems with high design p...

Страница 38: ...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 A B C Starting air A B C Cooling water A B C Ex...

Страница 39: ...llation length of flexible pipe connections must be correct Minimum bending radius must respected Piping must be concentrically aligned When specified the flow direction must be observed Mating flange...

Страница 40: ...ts closest to the engine or generating set should be fixed supports Where necessary sliding supports can be used after these three fixed supports to allow thermal expansion of the pipe Supports should...

Страница 41: ...Figure 5 3 Pipe clamp for fixed support 4V61H0842 Product Guide W rtsil 34DF 3 2012 35 Product Guide 5 Piping Design Treatment and Installation...

Страница 42: ...data However if the total content of hydrocarbons C5 and heavier is more than 1 volume W rtsil has to be con tacted for further evaluation 3 Hydrogen content higher than 3 volume has to be considered...

Страница 43: ...0 5 0 5 0 5 mg KOH g Acid number max ISO 10307 1 0 1 3 mass Total sediment by hot filtration max ISO 12205 25 4 25 25 g m3 Oxidation stability max ISO 10370 0 30 0 30 mass Carbon residue micro method...

Страница 44: ...ASTM D664 2 5 2 5 mg KOH g Acid number max ISO 10307 2 0 1 0 1 mass Total sediment aged max ISO 10370 20 15 mass Carbon residue micro method max ASTM D 3279 14 8 mass Asphaltenes max 1 ISO 3016 30 30...

Страница 45: ...nd zinc 15 mg kg Calcium 30 mg kg and phosphorus 15 mg kg 8 6 1 3 Liquid bio fuels The engine can be operated on liquid bio fuels according to the specifications in tables 6 4 Straight liquid bio fuel...

Страница 46: ...5 5 cSt Viscosity at 40 C min max 2 0 cSt Viscosity before injection pumps min ISO 3675 12185 860 900 kg m Density at 15 C min max ISO 5165 51 Cetane number min ISO 20846 20884 10 mg kg Sulphur max IS...

Страница 47: ...io diesel can vary based on the geographical location and also based on the feedstock properties which issues must be taken into account when designing the fuel system 1 Product Guide W rtsil 34DF 3 2...

Страница 48: ...unt of pilot diesel fuel MDF Gas and pilot fuel injection are solenoid operated and electronically controlled common rail systems 6 2 2 Diesel mode operation In diesel operating mode the engine operat...

Страница 49: ...01 Venting valve 04 Gas admission valve 02 Sensors and indicators Knock sensor cyl A SE6014A Main gas pressure PT901 Standard Pressure class Size Pipe connections ISO 7005 1 PN16 DN80 Gas inlet 108 IS...

Страница 50: ...is mixed with the combustion air immediately upstream of the inlet valve in the cylinder head Since the gas valve is timed independently of the inlet valve scavenging of the cylinder is possible with...

Страница 51: ...ar space of double wall pipe to the enclosure of the gas valve unit From the enclosure of the gas valve unit a dedicated ventilation pipe is connected to the ventilation fans and from fans the pipe co...

Страница 52: ...re double block and bleed valves is done from gas storage system and gas is blown out via vent valve V02 on the GVU During a stop sequence of DF engine gas operation i e upon gas trip pilot trip stop...

Страница 53: ...onal gas inlet Air inlet A1 ISO 7005 1 DN16 DN80 Gas outlet B1 DIN 2353 DN16 G1 2 Inert gas max 15 bar g B2 DIN 2353 DN16 Gas venting D1 DIN 2353 G1 2 Instrument air 6 8 bar g X1 Figure 6 5 Main dimen...

Страница 54: ...after GVU and the enclosure of the GVU doesn t need to be opened it is enough to inert gas pipe between GVU and engine If the maintenance work is done on GVU and the enclosure of the GVU need to open...

Страница 55: ...l temperature egnine inlet TE112 Fuel oil temperature engine inlet TE101 Pilot fuel oil pressure control CV124 Pilot fuel clean leakage LS103 1A Pilot fuel oil pressure pump outlet PT125 Fuel oil leak...

Страница 56: ...ture engine inlet TE101 Pilot fuel oil pressure control CV124 Pilot fuel clean leakage A B bank LS103 1A 1B Pilot fuel oil pressure pump outlet PT125 Fuel oil leakage clean primary A B bank LS103A B P...

Страница 57: ...osely followed Poorly centrifuged fuel is harmful to the engine and a high content of water may also damage the fuel feed system Injection pumps generate pressure pulses into the fuel feed and return...

Страница 58: ...a line from the known viscosity temperature point in 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 do...

Страница 59: ...tank is foreseen then the tank must be located at least 15 m above the engine crankshaft Leak fuel tank clean fuel 1T04 Clean leak fuel is drained by gravity from the engine The fuel should be collec...

Страница 60: ...h 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 arrange ment can be used for fuels with a densi...

Страница 61: ...cosity for dimensioning electric motor Separator pre heater 1E01 The pre heater is dimensioned according to the feed pump capacity and a given settling tank temperature The surface temperature in the...

Страница 62: ...n g kWh b density of the fuel kg m3 daily separating time for self cleaning separator h usually 23 h or 23 5 h t The flow rates recommended for the separator and the grade of fuel must not be exceeded...

Страница 63: ...ne filter MDF 1F05 Leak fuel drain clean fuel 103 Suction strainer MDF 1F07 Leak fuel drain dirty fuel 104 Flow meter MDF 1I03 Pilot fuel inlet 112 Circulation pump MDF 1P03 Pilot fuel outlet 117 Leak...

Страница 64: ...F 1P03 Pilot fuel inlet 112 Leak fuel tank clean fuel 1T04 Pilot fuel outlet 117 Day tank MDF 1T06 Leak fuel tank dirty fuel 1T07 Quick closing valve fuel oil tank 1V10 If the engines are to be operat...

Страница 65: ...pump There should be a by pass line around the consumption meter which opens automatically in case of ex cessive pressure drop Fine filter MDF 1F05 The fuel oil fine filter is a full flow duplex type...

Страница 66: ...ir operation in a black out situation by means of stored energy Depending on system design and classification regulations it may in some cases be permissible to use the emergency generator HFO engines...

Страница 67: ...fuel tank dirty fuel 1T07 Suction strainer MDF 1F07 De aeration tank booster unit 1T08 Automatic filter booster unit 1F08 Changeover valve 1V01 Flow meter booster unit 1I01 Pressure control valve boos...

Страница 68: ...circuit unless individual circulating pumps before each engine are installed Main engines and auxiliary engines should preferably have separate fuel feed units Individual circulating pumps or other s...

Страница 69: ...screw pump as feed pump The capacity of the feed pump must be sufficient to prevent pressure drop during flushing of the automatic filter A suction strainer with a fineness of 0 5 mm should be install...

Страница 70: ...ooster unit 1I01 If a fuel consumption meter is required it should be fitted between the feed pumps and the de aeration tank When it is desired to monitor the fuel consumption of individual engines in...

Страница 71: ...formula where heater capacity kW P total fuel consumption at full output 15 margin l h Q temperature rise in heater C T Viscosimeter booster unit 1I02 The heater is to be controlled by a viscosimeter...

Страница 72: ...fineness Maximum permitted pressure drops at 14 cSt 20 kPa 0 2 bar clean filter 80 kPa 0 8 bar alarm Overflow valve HFO 1V05 When several engines are connected to the same feeder booster unit an overf...

Страница 73: ...visions for installation of a temporary flushing filter The fuel pipes at the engine connections 101 and 102 are disconnected and the supply and return lines are connected with a temporary pipe or hos...

Страница 74: ...al gas MDF and HFO lubricating oil quality must be chosen based on HFO requirements BN 50 55 lubricants are to be selected in the first place for operation on HFO BN 40 lubricants can also be used wit...

Страница 75: ...erature TC outlet TE272 Lubricating oil pressure engine inlet PTZ201 Oil mist detector QU700 Lubricating oil temperature engine inlet TE201 Lubricating oil temperature engine inlet if ME TI201 Lubrica...

Страница 76: ...Lubricating oil pressure engine inlet PTZ201 Lubricating oil temperature TC B outlet TE282 Lubricating oil temperature engine inlet TE201 Oil mist detector QU700 Lubricating oil low level wet sump LS2...

Страница 77: ...and by pump connection is available as option Concerning flow rate and pressure of the engine driven pump see Technical data The pre lubricating oil pump is an electric motor driven gear pump equipped...

Страница 78: ...F03 Lubricating oil from separator and filling 213 Suction strainer stand by pump 2F06 Lubricating oil to separator and drain 214 Separator unit 2N01 Lubricating oil filling 215 Separator pump separat...

Страница 79: ...04 Crankcase air vent 701 Suction strainer stand by pump 2F06 Separator unit 2N01 Separator pump separator unit 2P03 Stand by pump 2P04 Separator 2S01 Condensate trap 2S02 System oil tank 2T01 Sludge...

Страница 80: ...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 must be suffi...

Страница 81: ...such a position that self closing is en sured Suction and return pipes of the separator must not be located close to each other in the tank The ventilation pipe from the system oil tank may not be co...

Страница 82: ...cover or through the separator pipe The system should be arranged so that it is possible to measure the filled oil volume 7 3 4 Suction strainers 2F01 2F04 2F06 It is recommended to install a suction...

Страница 83: ...ilation pipes may not be combined with other ventilation pipes e g vent pipes from the system oil tank The diameter of the pipe shall be large enough to avoid excessive back pressure Other possible eq...

Страница 84: ...mended mesh 34 microns into the engine oil sump through a hose and a crankcase door The pump shall be protected by a suction strainer 2F06 Whenever possible the separator unit shall be in operation du...

Страница 85: ...size 8 2 Internal compressed air system All engines independent of cylinder number are started by means of compressed air with a nominal pressure of 3 MPa 30 bar The start is performed by direct inje...

Страница 86: ...te valve 15 Non return valve 07 Starting booster for speed governor 08 Sensors and indicators Start solenoid valve CV321 Stop shutdown solenoid valve CV153 1 Slow turning solenoid valve CV331 Stop shu...

Страница 87: ...alve 15 Non return valve 07 Starting booster for speed governor 08 Sensors and indicators Start solenoid valve CV321 Stop shutdown solenoid valve CV153 1 Slow turning solenoid valve CV331 Stop shutdow...

Страница 88: ...yer Figure 8 3 Example of external compressed air system DAAE055759a Pipe connections System components Starting air inlet 3 MPa 301 Air filter starting air inlet 3F02 Control air to bypass wastegate...

Страница 89: ...the drain valve to ensure efficient draining Figure 8 4 Starting air vessel Weight kg Dimensions mm Size Litres D L3 1 L2 1 L1 274 480 110 243 1767 250 450 480 133 243 3204 500 625 650 133 255 2740 7...

Страница 90: ...ng 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 before the starting air inlet on the e...

Страница 91: ...ngines 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 use of...

Страница 92: ...cylinder jackets TE402 LT water temperature after CAC TE482 HT water temperature after cylinder jackets TEZ402 LT water stand by pump start if stand by pump PS460 HT water stand by pump start if stand...

Страница 93: ...LT water pressure before CAC PT471 HT water temp after cylinder jackets A bank TE402 LT water temperature before CAC TE471 HT water temp after cylinder jackets B bank TE403 LT water temperature after...

Страница 94: ...water out from the engine by circulating some water back to the cooling water pump inlet The HT temperature control valve is always mounted on the engine while the LT temperature control valve can be...

Страница 95: ...ng unit 4N01 Temperature control valve heat recovery 4V02 Evaporator unit 4N02 Temperature control valve central cooler 4V08 Stand by pump HT 4P03 Temperature control valve charge air 4V09 Circulating...

Страница 96: ...trol valve heat recovery 4V02 Evaporator unit 4N02 Temperature control valve charge air 4V09 Circulating pump preheater 4P04 Transfer pump 4P09 Pipe connections LT water inlet 451 HT water inlet 401 L...

Страница 97: ...heat recovery 4V02 Preheating unit 4N01 Temperature control valve central cooler 4V08 Evaporator unit 4N02 Temperature control valve charge air 4V09 Circulating pump preheater 4P04 Transfer pump 4P09...

Страница 98: ...be achieved in most installations with frequency control of the sea water pumps Minimum flow velocity fouling and maximum sea water temperature salt deposits are however issues to consider 9 3 3 Temp...

Страница 99: ...system 9 3 8 Fresh water central cooler 4E08 Design data see chapter Technical Data Fresh water flow see chapter Technical Data Heat to be dissipated max 60 kPa 0 6 bar Pressure drop on fresh water si...

Страница 100: ...ficient static pressure for the circulating pumps Design data 70 150 kPa 0 7 1 5 bar Pressure from the expansion tank at pump inlet min 10 of the total system volume Volume NOTE The maximum pressure a...

Страница 101: ...p must be used It is common to use the heat from running auxiliary engines for preheating of main engines In installations with several main engines the capacity of the separate heat source can be dim...

Страница 102: ...of thermometers Non return valve Safety valve Figure 9 8 Preheating unit electric 3V60L0562C Dimensions mm Pipe conn Weight kg Pump capacity m h Heater capacity kW E D C B A In outlet 60 HZ 50 Hz 460...

Страница 103: ...tem perature control valves Throttles must also be installed wherever it is necessary to balance the waterflow between alternate flow paths 9 3 15 Thermometers and pressure gauges Local thermometers...

Страница 104: ...acity of the ventilation air 1 01 kJ kgK c temperature rise in the engine room C T The heat emitted by the engine is listed in chapter Technical data The engine room ventilation air has to be provided...

Страница 105: ...equipped with a flap for controlling the direction and amount of air Also other combustion air consumers for example other engines gas turbines and boilers shall be served by dedicated combustion air...

Страница 106: ...9 kg water kg dry air If the air manifold pressure receiver pressure under these conditions is 2 5 bar 3 5 bar absolute the dew point will be 55 C If the air temperature in the air manifold is only 45...

Страница 107: ...Exhaust gas temperature after each cylinder TE50 1A Charge air temperature after CAC TE601 Exhaust gas temperature after TC TE517 Charge air shut off valve position optional GS621 TC speed SE518 Char...

Страница 108: ...et TE600 Exhaust wastegate valve position GT519 Charge air pressure after CAC PT601 Exhaust gas temperature TC inlet B bank TE521 Charge air temperature after CAC TE601 Exhaust gas temperature TC outl...

Страница 109: ...0 45 90 NA297 W 6L34DF 0 45 90 NA307 W 9L34DF 0 45 90 NA297 W 12V34DF 0 45 90 NA307 W 16V34DF Figure 11 4 Exhaust pipe diameters and support DAAE082783 B mm A mm TC type Engine 600 DN400 NA297 W 6L34...

Страница 110: ...5 Exhaust pipe diameters and support DAAE082784 86 B mm A mm TC type Engine 800 2 x DN400 NA297 W 12V34DF 900 2 x DN400 NA307 W 16V34DF 104 Product Guide W rtsil 34DF 3 2012 Product Guide 11 Exhaust G...

Страница 111: ...be safely directed through predefined routes The following guidelines should be observed when designing the external exhaust system The piping and all other components in the exhaust system should hav...

Страница 112: ...any source of ignition The number and location of explosion relief devices shall be such that the pressure rise caused by a possible explosion cannot cause any damage to the structure of the exhaust s...

Страница 113: ...ter the turbocharger Resilient mounts can be accepted for resiliently mounted engines with long bellows provided that the mounts are self captive maximum deflection at total failure being less than 2...

Страница 114: ...ed 11 3 10 Exhaust gas silencer 5R09 The yard designer should take into account that unfavorable layout of the exhaust system length of straight parts in the exhaust system might cause amplification o...

Страница 115: ...ected to the engine with 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 su...

Страница 116: ...Thus the emissions of SOx from the dual fuel engine are negligable When the engine is in diesel operating mode the emissions are in the same range as for any ordinary diesel engine and the engine wil...

Страница 117: ...File contains information about the components affecting NOx emissions and each critical component is marked with a special IMO number The allowable setting values and parameters for running the engi...

Страница 118: ...date is 1 1 2011 or later The IMO Tier 2 NOx limit is defined as follows 44 x rpm 0 23 when 130 rpm 2000 NOx g kWh The NOx level is a weighted average of NOx emissions at different loads and the test...

Страница 119: ...limits were agreed Final adoption of the proposed sulphur limits was taken by IMO MEPC 58 in October 2008 The upcoming limits for future fuel oil sulphur contents are presented in the following table...

Страница 120: ...for alarm and monitoring are communicated over a Modbus TCP connection to external systems Figure 14 1 Architecture of UNIC C3 Short explanation of the modules used in the system Main Control Module H...

Страница 121: ...selectors mechanical propulsion Normal emergency mode Decrease Increase speed Local emergency stop Local shutdown reset Local mode selector switch with positions blow blocked local and remote Position...

Страница 122: ...detection on sensors solenoids and wires Led indication of status and detected faults Digital status outputs Shutdown latching and reset Shutdown pre warning Shutdown override configuration depending...

Страница 123: ...Integrated Automation System A 1 x 2 x 0 75 mm2 1 x 2 x 0 75 mm2 1 x 2 x 0 75 mm2 14 x 0 75 mm2 14 x 0 75 mm2 Engine Propulsion Control System Engine Power Management System Main Switchboard B 2 x 0...

Страница 124: ...haust gas fan and pre lube starter Exhaust gas ventilation unit K NOTE Cable types and grouping of signals in different cables will differ depending on installation Dimension of the power supply cable...

Страница 125: ...e blackout detection system can force the engine to run in backup operating mode conventional diesel fuel injection only It is possible to transfer a running engine from gas into diesel operating mode...

Страница 126: ...of 0 5 bar Stop signal to engine activated safety shut down emergency stop normal stop External start block active Drive voltage low override if black out input is high Main control module control vo...

Страница 127: ...med This is done by stopping the engine and re starting it in diesel or gas operating mode After the blackout situation is over i e when the first engine is started in backup operating mode connected...

Страница 128: ...unloading Whilst an engine is transferring the starting and stopping of heavy electric consumers should be avoided 14 2 4 Stop shutdown and emergency stop Stop mode Before stopping the engine the cont...

Страница 129: ...ncing frequency adjustment or gen erator loading unloading control in the external control system In a speed droop system each individual speed control unit decreases its internal speed reference when...

Страница 130: ...3 x 440 29 0 15 5 50 3 x 400 V engines 30 5 18 0 60 3 x 440 Exhaust gas ventilation unit The exhaust gas ventilating unit is engine specific and includes an electric driven fan flow switch and closing...

Страница 131: ...he engine control system handles start stop of the pump automatically via a motor starter Sea water pumps 4P11 The pumps can be stopped when all engines are stopped provided that cooling is not requir...

Страница 132: ...holding down bolts is shown the foundation drawings It is recommended that the bolts are made from a high strength steel e g 42CrMo4 or similar A high strength material makes it possible to use a hig...

Страница 133: ...the clearance bolts shall be 44 mm M42 bolts while the hole in the chocks for the fitted bolts shall be drilled and reamed to the correct size 43H7 when the engine is finally aligned to the reduction...

Страница 134: ...Figure 15 1 Main engine seating and fastening in line engines steel chocks DAAE085777 128 Product Guide W rtsil 34DF 3 2012 Product Guide 15 Foundation...

Страница 135: ...per engine W 9L34DF W 6L34DF 2 2 Fitted bolt 20 14 Clearance bolt 22 16 Round nut 22 16 Lock nut 2 2 Distance sleeve 6 4 Lateral support 22 16 Chocks Product Guide W rtsil 34DF 3 2012 129 Product Gui...

Страница 136: ...Figure 15 2 Main engine seating and fastening in line engines resin chocks DAAE085778 130 Product Guide W rtsil 34DF 3 2012 Product Guide 15 Foundation...

Страница 137: ...per engine W 9L34DF W 6L34DF 2 2 Fitted bolt 20 14 Clearance bolt 22 16 Round nut 22 16 Lock nut 2 2 Distance sleeve 6 4 Lateral support 22 16 Chocks Product Guide W rtsil 34DF 3 2012 131 Product Gui...

Страница 138: ...Figure 15 3 Main engine seating and fastening V engines steel chocks DAAE085776 132 Product Guide W rtsil 34DF 3 2012 Product Guide 15 Foundation...

Страница 139: ...per engine W 16V34DF W 12V34DF 2 2 Fitted bolt 18 14 Clearance bolt 20 16 Round nut 20 16 Lock nut 2 2 Distance sleeve 6 4 Lateral support 20 16 Chocks Product Guide W rtsil 34DF 3 2012 133 Product Gu...

Страница 140: ...Figure 15 4 Main engine seating and fastening V engines resin chocks DAAE085781 134 Product Guide W rtsil 34DF 3 2012 Product Guide 15 Foundation...

Страница 141: ...per engine W 16V34DF W 12V34DF 2 2 Fitted bolt 18 14 Clearance bolt 20 16 Round nut 20 16 Lock nut 2 2 Distance sleeve 6 4 Lateral support 20 16 Chocks Product Guide W rtsil 34DF 3 2012 135 Product Gu...

Страница 142: ...foot A resin chock is cast under the intermediate steel plate Cylinder configurations 9L and 18V are mounted on cylindrical rubber elements These rubber elements are mounted to steel plates in groups...

Страница 143: ...Figure 15 6 Principle of resilient mounting V engines 2V69A0248a Product Guide W rtsil 34DF 3 2012 137 Product Guide 15 Foundation...

Страница 144: ...AE084469 W 16V34DF Rmax mm W 12V34DF Rmax mm W 9L34DF Rmax mm W 6L34DF Rmax mm H mm 715 1400 810 810 1600 985 985 905 1800 1045 1045 980 1950 1090 2200 B mm C mm D mm E mm F G mm Engine 170 100 475 35...

Страница 145: ...n The number of mounts and their location is calculated to avoid resonance with excitations from the gener ating set engine the main engine and the propeller NOTE To avoid induced oscillation of the g...

Страница 146: ...the mounts is natural rubber and it must therefore be protected from oil oily water and fuel The mounts should be evenly loaded when the generating set is resting on the mounts The maximum permissibl...

Страница 147: ...nerating set When installing the flexible pipe connections unnecessary bending or stretching should be avoided The external pipe must be precisely aligned to the fitting or flange on the engine It is...

Страница 148: ...cies 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 Figure 16 1 Coordin...

Страница 149: ...20 750 W 16V34DF 16 3 Mass moments of inertia The mass moments of inertia of the main engines including flywheel are typically as follows J kgm Engine 440 490 W 6L34DF 640 660 W 9L34DF 700 780 W 12V34...

Страница 150: ...3 Typical sound power level for engine noise W V34DF 16 5 Exhaust noise Figure 16 4 Typical sound power level for exhaust noise W L34DF 144 Product Guide W rtsil 34DF 3 2012 Product Guide 16 Vibration...

Страница 151: ...Figure 16 5 Typical sound power level for exhaust noise W V34DF Product Guide W rtsil 34DF 3 2012 145 Product Guide 16 Vibration and Noise...

Страница 152: ...rather heavy coupling can be mounted on the flywheel without intermediate bearings The type of flexible coupling to be used has to be decided separately in each case on the basis of the tor sional vi...

Страница 153: ...intenance of a stopped engine clutches must be installed in twin screw vessels which can operate on one shaft line only 17 4 Shaft locking device To permit maintenance of a stopped engine clutches mus...

Страница 154: ...ional vibration calculations Figure 17 4 Power take off at free end DAAE084566 PTO shaft connected to L mm D4 mm D3 mm D2 mm D1 mm Rating 1 kW Engine extension shaft with support bearing 650 260 300 2...

Страница 155: ...nertia of the propeller at full zero pitch in water Torsional stiffness or dimensions of the shaft Material of the shaft including tensile strength and modulus of rigidity Drawing number of the diagra...

Страница 156: ...in speed Power distribution between the different users Power speed curve of the load 17 7 Turning gear The engine is equipped with an electrical driven turning gear capable of turning the flywheel 15...

Страница 157: ...llowed in order to provide sufficient space between engines for maintenance and operation 18 1 1 Main engines Figure 18 1 Crankshaft distances in line engines DAAE082974A A mm Engine type 2700 W 6L34D...

Страница 158: ...kshaft distances V engines DAAE082971 A mm Combusion air system 3700 TC with air filter silencer on turbocharger 3800 Air duct connected to TC 152 Product Guide W rtsil 34DF 3 2012 Product Guide 18 En...

Страница 159: ...in line engines DAAE082973 F E D C B A Engine type 1700 410 2800 1910 1660 1600 W 6L34DF 2000 110 2800 2510 2260 2200 W 9L34DF All dimensions in mm Dependent on the generator type Product Guide W rts...

Страница 160: ...general guidelines can be given It is essential to check that all engine components can be dismounted The most critical are usually turbochargers and charge air coolers When using a combination of in...

Страница 161: ...o allow adequate space for engine inspections and maintenance there has to be sufficient free space between the intermediate propeller shaft and the engine To enable safe working conditions the shaft...

Страница 162: ...e type 1480 2700 1880 940 W 6L34DF 1480 2700 1880 940 W 9L34DF Figure 18 7 Main engine arrangement in line engines DAAE086972B Notes All dimensions in mm Intermediate shaft diameter to be determined c...

Страница 163: ...9 Main engine arrangement V engines DAAE083975 Notes All dimensions in mm Intermediate shaft diameter to be determined case by case Depends on type of gearbox Depends on type of shaft bearing Product...

Страница 164: ...the platforms should be at minimum 800 mm to allow adequate working space The surface of maintenance platforms should be of non slippery material grating or chequer plate 18 3 Transportation and stor...

Страница 165: ...4 1 Service space requirement for the in line engine Figure 18 10 Service space requirement turbocharger in free end DAAE083978 Product Guide W rtsil 34DF 3 2012 159 Product Guide 18 Engine Room Layo...

Страница 166: ...18 4 2 Service space requirement for the V engine Figure 18 11 Service space requirement turbocharger in free end DAAE083976 160 Product Guide W rtsil 34DF 3 2012 Product Guide 18 Engine Room Layout...

Страница 167: ...s DAAE083962 E2 E1 D3 D2 D1 C B A Engine 2940 2940 1520 980 980 490 2990 540 W 6L34DF 4410 3920 2010 980 490 490 4460 540 W 9L34DF All dimensions in mm Transport bracket weight 890 kg Rear side B bank...

Страница 168: ...30 530 1090 560 3430 630 W 12V34DF 2154 2266 4450 4450 530 1090 560 4550 630 W 16V34DF All dimensions in mm Transport bracket weight dry oil sump 935 kg wet oil sump 1060 kg Rear side B bank 1 Operati...

Страница 169: ...ure 19 3 Lifting of generating sets DAAE083966 69 W mm L mm H mm Engine 2245 2845 3700 6000 6550 6900 W L34DF 2975 3275 4500 6500 8000 8480 W V34DF Product Guide W rtsil 34DF 3 2012 163 Product Guide...

Страница 170: ...083974 Weight kg Dimensions mm Engine E D C 500 436 672 963 W 6L34DF 500 594 790 963 W 9L34DF 850 600 600 2056 W 12V34DF 950 600 600 2056 W 16V34DF Table 19 3 Turbocharger DAAE083974 Weight kg Dimensi...

Страница 171: ...74 Piston 2 127 Split gear wheel 11 253 Cylinder liner 3 31 Small intermediate gear 12 410 Cylinder head 4 156 Large intermediate gear 13 3 Inlet valve 5 103 Camshaft gear wheel 14 2 8 Exhaust valve...

Страница 172: ...n web and PDF format Drawings are available in PDF and DXF format and in near future also as 3D models Consult your sales contact at W rtsil to get more information about the product guides on the Bus...

Страница 173: ...ar kPa Table 21 6 Moment of inertia and torque conversion factors Multiply by To Convert from 23 730 lbft2 kgm2 737 562 lbf ft kNm Table 21 5 Power conversion factors Multiply by To Convert from 1 360...

Страница 174: ...21 2 Collection of drawing symbols used in drawings Figure 21 1 List of symbols DAAE000806c 168 Product Guide W rtsil 34DF 3 2012 Product Guide 21 ANNEX...

Страница 175: ......

Страница 176: ...in complete lifecycle 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...

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