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11.

Turbocharger Cleaning

Regular water cleaning of the turbine and the compressor reduces the formation of deposits
and extends the time between overhauls. Fresh water is injected into the turbocharger during
operation. Additives, solvents or salt water must not be used and the cleaning instructions in
the operation manual must be carefully followed.

11.1

Turbine cleaning system

A dosing unit consisting of a flow meter and an adjustable throttle valve is delivered for each
installation. The dosing unit is installed in the engine room and connected 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 supply:

Fresh water

0.3 MPa (3 bar)

Min. pressure

2 MPa (20 bar)

Max. pressure

80 °C

Max. temperature

Fig 11-1

Turbocharger cleaning system (DAAF347567)

Pipe connections

System components

Cleaning water to turbine

502##

TC cleaning device

5Z03

Cleaning water to compressor

509##

Wärtsilä control unit for 4 engines

02

Scavenging air outlet to TC cleaning valve unit

614##

Flow meter/control (7,5 - 40 l/min)

03

Flow adjustment valve, built in

04

Air filter

05

Wärtsilä 31 Product Guide - a1 - 18 October 2016

11-1

11. Turbocharger Cleaning

Wärtsilä 31 Product Guide

Содержание 31

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

Страница 2: ...L MATTERS SUITED ONLY FOR SPECIALISTS IN THE AREA AND THE DESIGN OF THE SUBJECT PRODUCTS IS SUBJECT TO REGULAR IMPROVEMENTS MODIFICATIONS AND CHANGES CONSEQUENTLY THE PUBLISHER AND COPYRIGHT OWNER OF...

Страница 3: ...specific instructions for planning the installation are always delivered Any data and information herein is subject to revision without notice Updates Published Issue First version of Product Guide W3...

Страница 4: ...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 class 5 4 5 5 Insulation 5 4 5 6 Local gauges 5 4 5 7 Cleaning procedures 5 5...

Страница 5: ...pulsion 14 1 14 Foundation 14 1 14 1 Steel structure design 14 1 14 2 Mounting of main engines 14 8 14 3 Mounting of generating sets 14 10 14 4 Flexible pipe connections 15 1 15 Vibration and Noise 15...

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Страница 7: ...ble for W rtsil 31 Generating sets Main engines Cylinder configuration 750 rpm 720 rpm 750 rpm Generator kVA Engine kW Generator kVA Engine kW kW 5856 4880 5664 4720 4880 W 8V31 7320 6100 7080 5900 61...

Страница 8: ...0 kPa total barometric pressure 25 C air temperature 30 relative humidity 25 C charge air coolant temperature Correction factors for the fuel oil consumption in other ambient conditions are given in s...

Страница 9: ...om the crankshaft centerline to the bottom of the oil sump when shallow oil sump HE3 Length of the engine block LE2 Dimension from the end of the block to the end of the crankshaft LE4 Width of the oi...

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Страница 11: ...t project specific vibration calculations may result in higher minimum speed than in the diagram below The propulsion control must also include automatic limitation of the load increase rate Maximum l...

Страница 12: ...mum recommended load increase rates for variable speed engines The propulsion control must include automatic limitation of the load increase rate If the control system has only one load increase ramp...

Страница 13: ...increased in small increments and the resulting loading rate roughly corresponds to the normal curve In normal operation the load should not be reduced from 100 to 0 in less than 15 seconds If the ap...

Страница 14: ...eceiver is at 2 LFO 35C or above HFO 45C or above High load running minimum 70 is to be followed for a minimum of 60 minutes to clean up the engine after maximum allowed low load running time has been...

Страница 15: ...5 0 5 0 5 0 5 0 5 0 kPa Backpressure max 705 705 693 705 693 mm Calculated pipe diameter for 35m s Heat balance Note 3 494 494 460 494 460 kW Jacket water HT circuit 926 926 858 926 858 kW Charge air...

Страница 16: ...Hz 2 54 2 54 2 54 2 54 2 54 m Oil volume wet sump nom 6 6 6 6 6 4 6 6 6 4 m Oil volume in separate system oil tank nom 0 45 0 45 0 45 0 45 0 45 g kWh Oil consumption 100 load approx 1960 1960 1960 196...

Страница 17: ...conditions ambient air temperature 25 C LT water 25 C and 100 load Flow tolerance 5 Note 1 At ISO 15550 conditions ambient air temperature 25 C LT water 25 C Flow tolerance 5 and temperature toleranc...

Страница 18: ...te 3 618 618 575 618 575 kW Jacket water HT circuit 1157 1157 1073 1157 1073 kW Charge air HT circuit 1537 1537 1494 1537 1494 kW Charge air LT circuit 653 653 609 653 609 kW Lubricating oil LT circui...

Страница 19: ...2450 2450 l min Crankcase ventilation flow rate at full load 0 1 0 1 0 1 0 1 0 1 kPa Crankcase ventilation backpressure max 6 0 6 8 6 0 6 8 6 0 6 8 6 0 6 8 6 0 6 8 liters Oil volume in turning device...

Страница 20: ...At ISO 15550 conditions ambient air temperature 25 C LT water 25 C Flow tolerance 5 and temperature tolerance 10 C Note 2 At ISO 15550 conditions ambient air temperature 25 C LT water 25 C and 100 loa...

Страница 21: ...lance Note 3 742 742 690 742 690 kW Jacket water HT circuit 1388 1388 1288 1388 1288 kW Charge air HT circuit 1844 1844 1793 1844 1793 kW Charge air LT circuit 784 784 731 784 731 kW Lubricating oil L...

Страница 22: ...940 2940 2940 2940 l min Crankcase ventilation flow rate at full load 0 1 0 1 0 1 0 1 0 1 kPa Crankcase ventilation backpressure max 6 0 6 8 6 0 6 8 6 0 6 8 6 0 6 8 6 0 6 8 liters Oil volume in turnin...

Страница 23: ...At ISO 15550 conditions ambient air temperature 25 C LT water 25 C Flow tolerance 5 and temperature tolerance 10 C Note 2 At ISO 15550 conditions ambient air temperature 25 C LT water 25 C and 100 loa...

Страница 24: ...balance Note 3 865 865 805 865 805 kW Jacket water HT circuit 1620 1620 1502 1620 1502 kW Charge air HT circuit 2152 2152 2092 2152 2092 kW Charge air LT circuit 914 914 853 914 853 kW Lubricating oil...

Страница 25: ...430 3430 3430 3430 3430 l min Crankcase ventilation flow rate at full load 0 1 0 1 0 1 0 1 0 1 kPa Crankcase ventilation backpressure max 6 0 6 8 6 0 6 8 6 0 6 8 6 0 6 8 6 0 6 8 liters Oil volume in t...

Страница 26: ...t ISO 15550 conditions ambient air temperature 25 C LT water 25 C Flow tolerance 5 and temperature tolerance 10 C Note 2 At ISO 15550 conditions ambient air temperature 25 C LT water 25 C and 100 load...

Страница 27: ...alance Note 3 989 989 920 989 920 kW Jacket water HT circuit 1851 1851 1717 1851 1717 kW Charge air HT circuit 2459 2459 2390 2459 2390 kW Charge air LT circuit 1045 1045 974 1045 974 kW Lubricating o...

Страница 28: ...3920 3920 3920 3920 l min Crankcase ventilation flow rate at full load 0 1 0 1 0 1 0 1 0 1 kPa Crankcase ventilation backpressure max 6 0 6 8 6 0 6 8 6 0 6 8 6 0 6 8 6 0 6 8 liters Oil volume in turn...

Страница 29: ...t ISO 15550 conditions ambient air temperature 25 C LT water 25 C Flow tolerance 5 and temperature tolerance 10 C Note 2 At ISO 15550 conditions ambient air temperature 25 C LT water 25 C and 100 load...

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Страница 31: ...y by the engine block Hydraulically tensioned horizontal side screws at the lower guiding provide a very rigid crankshaft bearing assembly A hydraulic jack supported in the oil sump offers the possibi...

Страница 32: ...re centrifugally casted of a special alloyed cast iron The top collar of the cylinder liner is provided with a water jacket for distributing cooling water through the cylinder liner cooling bores This...

Страница 33: ...stage turbocharging offers ideal combination of high pressure ratios and good efficiency both at full and part load The turbochargers can be placed at the free end or flywheel end of the engine For c...

Страница 34: ...mperature LT circuit For engines operating in normal conditions the HT water is cooling the cylinders jacket and the first stage of the low pressure 2 stage charge air cooler The LT water is cooling t...

Страница 35: ...r liner 64000 128000 48000 96000 32000 24000 Cylinder head 32000 24000 32000 24000 Inlet valve 32000 24000 32000 24000 Exhaust valve 64000 48000 32000 24000 Main bearing 32000 24000 32000 24000 Big en...

Страница 36: ...This page intentionally left blank...

Страница 37: ...plan prior to construction The following aspects shall be taken into consideration Pockets shall be avoided When not possible drain plugs and air vents shall be installed Leak fuel drain pipes shall...

Страница 38: ...s of their effect on pressure drop In longer supply lines it is often necessary to restrict velocities to 15 m s to limit the pressure drop Pipeline sizing on pressure drop As a rule of thumb the pres...

Страница 39: ...ighest 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 throttled valves Con...

Страница 40: ...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...

Страница 41: ...ying flammable fluids or compressed air have to be type approved Great care must be taken to ensure proper installation of flexible pipe connections between resiliently mounted engines and ship s pipi...

Страница 42: ...e first support First three supports 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 exp...

Страница 43: ...e supports of flexible pipe connections 4V60L0796 Fig 5 3 Pipe clamp for fixed support 4V61H0842 W rtsil 31 Product Guide a1 18 October 2016 5 7 5 Piping Design Treatment and Installation W rtsil 31 P...

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Страница 45: ...enough to meet the min injection viscosity limit of the engine DMA A high quality distillate generally designated as MGO Marine Gas Oil DMZ A high quality distillate generally designated as MGO Marin...

Страница 46: ...is not clear and bright the total sediment by hot filtration and water tests shall be required 3 If the sample is not clear and bright the test cannot be undertaken and hence the oxidation stability l...

Страница 47: ...ditional properties specified by W rtsil which are not included in the ISO specification 1 Max 1010 kg m at 15 C provided that the fuel treatment system can remove water and solids sediment sodium alu...

Страница 48: ...clear and bright the total sediment by hot filtration and water tests shall be required e If the sample is not clear and bright the test cannot be undertaken and hence the oxidation stability limit sh...

Страница 49: ...PT101 FO pump A1 temperature TE116A FO temp engine inlet TE101 FO temp in volume after SV TE118 FO injector control cyl A CV1 1A FO flow control valve 2 A bank CV124A FO injector control cyl B CV1 1B...

Страница 50: ...O rail pressure B bank DE PT115B Size Pipe connections DN25 Fuel inlet 101 DN25 Fuel outlet 102 OD28 Leak fuel drain clean fuel 1033 DN32 Leak fuel drain dirty fuel 1041 DN32 Leak fuel drain dirty fue...

Страница 51: ...Nimonic to Stellite is recommended 6 2 1 Leak fuel system Clean leak fuel from the injection valves is collected on the engine and drained by gravity through a clean leak fuel connection The clean lea...

Страница 52: ...ions where several engines are connected to the same fuel feed circuit it must be possible to close the fuel supply and return lines connected to the engine individually This is a SOLAS requirement It...

Страница 53: ...lected in a separate clean leak fuel tank from where it can be pumped to the day tank and reused without separation The pipes from the engine to the clean leak fuel tank should be arranged continuosly...

Страница 54: ...w Rate CFR has been introduced to express the performance of separators according to a common standard CFR is defined as the flow rate in l h 30 minutes after sludge discharge at which the separation...

Страница 55: ...O Design data 0 5 MPa 5 bar 0 5 MPa 5 bar Design pressure 50 C 100 C Design temperature 100 cSt 1000 cSt Viscosity for dimensioning electric motor 6 3 3 4 Separator pre heater 1E01 The pre heater is d...

Страница 56: ...formula where max continuous rating of the diesel engine s kW P specific fuel consumption 15 safety margin g kWh b density of the fuel kg m3 daily separating time for self cleaning separator h usuall...

Страница 57: ...8 Leak fuel drain clean fuel 1033 Suction strainer MDF 1F07 DN32 Leak fuel drain dirty fuel 1041 Flow meter MDF 1I03 DN32 Leak fuel drain dirty fuel 1042 Circulation pump MDF 1P03 DN32 Leak fuel drain...

Страница 58: ...fuel 1033 Suction strainer MDF 1F07 DN32 Leak fuel drain dirty fuel 1041 Flow meter MDF 1I03 DN32 Leak fuel drain dirty fuel 1042 Stand by pump MDF 1P08 DN32 Leak fuel drain dirty fuel 1043 Day tank M...

Страница 59: ...l drain clean fuel 1033 Suction strainer MDF 1F07 DN32 Leak fuel drain dirty fuel 1041 Flow meter MDF 1I03 DN32 Leak fuel drain dirty fuel 1042 Circulation pump MDF 1P03 DN32 Leak fuel drain dirty fue...

Страница 60: ...filter 1F04 It is recommended to select an automatic filter with a manually cleaned filter in the bypass line The automatic filter must be installed before the heater between the feed pump and the de...

Страница 61: ...5 MDF cooler 1E04 The fuel viscosity may not drop below the minimum value stated in Technical data When operating on MDF the practical consequence is that the fuel oil inlet temperature must be kept b...

Страница 62: ...F06 Changeover valve 1V01 Automatic filter booster unit 1F08 Pressure control valve booster unit 1V03 Flow meter booster unit 1I01 Venting valve booster unit 1V07 Viscosity meter booster unit 1I02 Qui...

Страница 63: ...7 Pressure control valve MDF 1V02 Automatic filter booster unit 1F08 Pressure control valve booster unit 1V03 Flow meter booster unit 1I01 Overflow valve Booster unit 1V05 Viscosity meter booster unit...

Страница 64: ...5 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 pumps of screw type equipped wit...

Страница 65: ...as possible The diameter of the pipe between the fine filter and the engine should be the same as the diameter before the filters Design data according to fuel specifications Fuel viscosity 100 C Des...

Страница 66: ...coil The volume of the tank should be at least 100 l Circulation pump booster unit 1P06 The purpose of this pump is to circulate the fuel in the system and to maintain the required pressure at the in...

Страница 67: ...6 3 5 4 Overflow valve HFO 1V05 When several engines are connected to the same feeder booster unit an overflow valve is needed between the feed line and the return line The overflow valve limits the...

Страница 68: ...e 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 except in the flus...

Страница 69: ...03 ISO 8217 2012 E C BN 50 55 lubricants are to be selected in the first place for operation on HFO BN 40 lubricants can also be used with HFO provided that the sulphur content of the fuel is relative...

Страница 70: ...PT201 Lube oil temperature HP TC A outlet TE272 2 Lube oil pressure engine inlet PTZ201 Lube oil pressure LP TC B inlet PT281 1 Lube oil temperature engine inlet TE201 Lube oil pressure HP TC B inlet...

Страница 71: ...ating oil from el driven pump stand by pump 208 DN40 DN40 Lubricating oil from separator and filling wet sump 213 DN40 DN40 Lubricating oil to separator and drain wet sump 214 DN40 DN40 Lube oil to ge...

Страница 72: ...to the engine automation system The transducer is measuring the low level of oil in the oil sump The direct driven lubricating oil pump is of screw type and equipped with a pressure control valve The...

Страница 73: ...l 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 20V 8V 10V Pipe connections DN250 DN200...

Страница 74: ...sure control valve 2V03 Separator 2S01 12V 20V 8V 10V Pipe connections DN250 DN200 Lube oil to el driven pump 207 DN150 DN150 Lube oil from el driven pump 208 DN40 DN40 Lubricating oil from separator...

Страница 75: ...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 Lubricating oil to s...

Страница 76: ...he system oil tank after a long stop must be taken into account when dimensioning the electric motor Separator preheater 2E02 The preheater is to be dimensioned according to the feed pump capacity and...

Страница 77: ...cated 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 the pressure loss For the same reason the su...

Страница 78: ...01 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 minimize pressure l...

Страница 79: ...idered with regards to high viscosity With cold oil the pressure at the pump will reach the relief pressure of the safety valve Design data see Technical data Capacity 350 kPa 3 5 bar Max pressure saf...

Страница 80: ...near the engine The connection between engine and pipe is to be flexible Design data see Technical data Flow see Technical data Backpressure max 80 C Temperature Fig 7 6 Condensate trap DAAE032780B Th...

Страница 81: ...or driven stand by pump 2P04 is installed then piping shall be flushed running the pump circulating engine oil through a temporary external oil filter recommended mesh 34 microns into the engine oil s...

Страница 82: ...The properties to be analyzed are Viscosity BN AN Insolubles Fe and Particle Count Commissioning procedures shall in the meantime be continued without interruption unless the commissioning engineer b...

Страница 83: ...gn pressure 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 Internal compressed air system All engines independent of cylinder number are sta...

Страница 84: ...er 06 Sensors and indicators Charge air shut off valve position A bank GS621 Circulation valve control CV133 Charge air shut off valve position B bank GS631 PDSV valve CV134 Turning gear engage soleno...

Страница 85: ...l starting air system DAAF301502 Size Pipe connections System components DN32 Starting air inlet 301 Cooler Starting air compressor unit 3E01 OD12 Instrument air inlet 320 Air filter starting air inle...

Страница 86: ...nsate drain If the air vessels are mounted horizontally there must be an inclination of 3 5 towards the drain valve to ensure efficient draining Fig 8 3 Starting air vessel Weight kg Dimensions mm Siz...

Страница 87: ...volume shall be divided into at least two equally sized starting air vessels 8 3 4 Air filter starting air inlet 3F02 Condense formation after the water separator between starting air compressor and s...

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Страница 89: ...through 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 inhibit...

Страница 90: ...ressure CAC inlet TE475 HT water temperature jacket outlet A bank TEZ402 LT water temperature LOC outlet TE482 HT water temperature jacket outlet B bank TE403 Liner temperature 1 cyl A TE7 1A HT water...

Страница 91: ...02 LT water tempterature HP CAC outlet TE476 HT water temperature jacket outlet A bank TEZ402 LT water temperature LOC outlet TE482 HT water temperature jacket outlet B bank TE403 Liner temperature 1...

Страница 92: ...emperature high pressure CAC inlet TE475 HT water temperature jacket outlet A bank TEZ402 LT water temperature LOC outlet TE482 HT water temperature jacket outlet B bank TE403 Liner temperature 1 cyl...

Страница 93: ...from air cooler 416 DN150 DN125 LT water inlet 451 DN150 DN125 LT water outlet 452 DN150 DN125 LT water from stand by pump 457 OD15 OD15 LT water air vent 483 W rtsil 31 Product Guide a1 18 October 2...

Страница 94: ...let A bank TEZ402 LT water temperature LOC outlet TE482 HT water temperature jacket outlet B bank TE403 Liner temperature 1 cyl A TE7 1A HT water temperature jacket outlet B bank TEZ403 Liner temperat...

Страница 95: ...t The HT water pump is circulating the cooling water in the circuit and a thermostatic valve controls the outlet temperature HT thermostatic valve s can be mounted as option outside of the engine The...

Страница 96: ...4P11 Preheating unit 4N01 Temp control valve charge air 4V09 Circulating pump evaporator 4P19 Evaporator unit 4N02 16V 20V 12V 14V 8V 10V Pipe connections DN150 DN125 DN100 HT water inlet 401 DN150 DN...

Страница 97: ...unit 4N02 Temperature control valve charge air 4V09 Circulating pump preheater 4P04 Transfer pump 4P09 16V 20V 12V 14V 8V 10V Pipe connections DN150 DN125 DN100 HT water inlet 401 DN150 DN125 DN100 H...

Страница 98: ...irculating pump preheater 4P04 16V 20V 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 DN150 DN125 DN100...

Страница 99: ...unit 4N02 Temperature control valve charge air 4V09 Circulating pump preheater 4P04 Transfer pump 4P09 16V 20V 12V 14V 8V 10V Pipe connections DN150 DN125 DN100 HT water inlet 401 DN150 DN125 DN100 H...

Страница 100: ...entral cooler outlet is typically returned 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 in Fi...

Страница 101: ...of 4V08 can be lower than 38 C if necessary 9 3 4 Charge air temperature control valve 4V09 The temperature of the charge air is maintained on desired level with an electrically actuated temperature...

Страница 102: ...control valves 9 3 8 Expansion tank 4T05 The expansion tank compensates for thermal expansion of the coolant serves for venting of the circuits and provides a sufficient static pressure for the circu...

Страница 103: ...lations with several main engines the capacity of the separate heat source can be dimensioned for preheating of two engines provided that this is acceptable for the operation of the ship If the coolin...

Страница 104: ...250 DN40 145 13 12 45 510 350 755 900 1250 DN40 150 13 12 54 550 400 805 900 1260 DN40 187 13 12 72 550 400 805 900 1260 DN40 190 13 12 81 575 450 855 900 1260 DN40 215 13 12 108 9 3 11 Throttles Thro...

Страница 105: ...cyl B only DF engine SE6 4B Exhaust gas temperature cyl B TE5 1B Charge air pressure high pressure TC A inlet PT611A Exhaust gas temperature TC A inlet TE511 Charge air temperature high pressure TC A...

Страница 106: ...2 Cleaning water to turbine 502LP OD12 Condensate water from air cooler 6072 OD28 Cleaning water to turbine 502HP OD15 Scavenging air outlet to TC cleaning valve unit 614LP OD12 Cleaning water to comp...

Страница 107: ...4A Exhaust gas temperature cyl A TE5 1A Knock cyl B only DF engine SE6 4B Exhaust gas temperature cyl B TE5 1B Charge air pressure high pressure TC A inlet PT611A Exhaust gas temperature TC A inlet TE...

Страница 108: ...02HP OD18 Cleaning water to compressor 509LP OD18 Cleaning water to compressor 509HP DN450 Air inlet to turbocharger 601 Charge air from pressure reducing valve 603 OD12 Condensate water from air rece...

Страница 109: ...W 16V31 Fig 10 4 Exhaust pipe connections W12V W16V31 DAAF343596 Fig 10 5 Exh aust pipe diameters and support DAAF351047 B mm A mm TC type Engine 700 DN550 ABB POWER2 850 M 8V31 800 DN550 10V31 W rts...

Страница 110: ...e for thermal expansion and prevent damages to the turbocharger due to vibrations Diesel engine 1 Exhaust gas bellows 2 Connection for measurement of back pressure 3 Transition piece 4 Drain with wate...

Страница 111: ...e bellows on the turbocharger There should be a fixing point on both sides of the pipe at the support The bellows on the turbocharger may not be used to absorb thermal expansion from the exhaust pipe...

Страница 112: ...ble damage All exhaust gas bellows must be of an approved type 10 3 5 SCR unit 11N14 The SCR unit requires special arrangement on the engine in order to keep the exhaust gas temperature and backpressu...

Страница 113: ...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 certain point and...

Страница 114: ...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 CSS system is buil...

Страница 115: ...se 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 collector and a condense...

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Страница 117: ...connected 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 Wat...

Страница 118: ...LP compressor 180 18 LP turbine 1 6 5 HP compressor 220 22 HP turbine 11 2 Compressor cleaning system The compressor side of the turbocharger is cleaned with the same equipment as the turbine 11 2 W r...

Страница 119: ...nitrogen usually inert react with oxygen to form Nitric oxide NO and Nitrogen dioxide NO2 which are usually grouped together as NOx emissions Their amount is strictly related to the combustion temper...

Страница 120: ...itrogen Oxides applies to diesel engines over 130 kW installed on ships built defined as date of keel laying or similar stage of construction on or after January 1 2000 and different levels Tiers of N...

Страница 121: ...or the whole ship IMO NOx emission standards The first IMO Tier 1 NOx emission standard entered into force in 2005 and applies to marine diesel engines installed in ships constructed on or after 1 1 2...

Страница 122: ...l engines 130 kW installed in ships which keel laying date is 1 1 2016 or later when operating inside the North American ECA and the US Caribbean Sea ECA The IMO Tier 3 NOx limit is defined as follows...

Страница 123: ...f fuel oil used onboard a ship must currently not exceed 0 1 in weight The Marpol Annex VI has undertaken a review with the intention to further reduce emissions from ships The current and upcoming li...

Страница 124: ...significantly reduce NOx emissions when this is required Diesel engine exhaust emissions can be reduced either with primary or secondary methods The primary methods limit the formation of specific em...

Страница 125: ...egic control functions such as start stop sequen cing and speed load control i e speed governing of the engine The communication modules handle engine internal and external communication as well as ha...

Страница 126: ...ors solenoids and wires Led indication of status and detected faults Digital status outputs Shutdown latching and reset Shutdown pre warning Shutdown override configuration depending on application 13...

Страница 127: ...wall router are installed in a steel sheet cabinet for bulkhead mounting protection class IP44 13 1 7 Cabling and system overview Fig 13 2 UNIC overview Table 13 1 Typical amount of cables Cable types...

Страница 128: ...rface unit F 1 x Ethernet CAT 5 Communication interface unit Integrated automation system G 2 x 0 75 mm2 Engine Pre lubrication pump starter H 1 x CAN bus 120 ohm Engine Turning gear starter I NOTE Ca...

Страница 129: ...trically when the turning gear is engaged The engine is equipped with a slow turning system which rotates the engine without fuel injection for a few turns before start Slow turning is performed autom...

Страница 130: ...4 20 mA signal It is also possible to select an operating mode in which the speed reference can be adjusted with increase decrease signals The electronic speed control handles load sharing between par...

Страница 131: ...onverter is to be mounted on the external system The electric motor ratings are listed in the table below Table 13 2 Electric motor ratings for engine turning device Current A Power kW Frequency Hz Vo...

Страница 132: ...en the engine is running 13 4 1 5 Stand by pump LT cooling water if applicable 4P05 The engine control system starts the pump automatically via a motor starter if the cooling water pressure drops belo...

Страница 133: ...o 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 corrects the sy...

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Страница 135: ...the flywheel one on each side of the engine A distance sleeve should be used together with the fitted bolts The distance sleeve must be mounted between the seating top plate and the lower nut in order...

Страница 136: ...e to be inclined outwards with regard to the centre line of the engine The inclination of the supporting surface should be 1 100 and it should be machined so that a contact surface of at least 75 is o...

Страница 137: ...Fig 14 1 Main engine seating and fastening steel chocks DAAF343802 W rtsil 31 Product Guide a1 18 October 2016 14 3 14 Foundation W rtsil 31 Product Guide...

Страница 138: ...14 4 W rtsil 31 Product Guide a1 18 October 2016 W rtsil 31 Product Guide 14 Foundation...

Страница 139: ...Fig 14 2 Main engine seating and fastening resin chocks DAAF346146 W rtsil 31 Product Guide a1 18 October 2016 14 5 14 Foundation W rtsil 31 Product Guide...

Страница 140: ...14 6 W rtsil 31 Product Guide a1 18 October 2016 W rtsil 31 Product Guide 14 Foundation...

Страница 141: ...Fig 14 3 Main engine seating and fastening Adjustable chocks DAAF346157 W rtsil 31 Product Guide a1 18 October 2016 14 7 14 Foundation W rtsil 31 Product Guide...

Страница 142: ...e 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 available Fig 14 4 Principle of resilien...

Страница 143: ...ected number of mounts and their final position is shown in the generating set drawing Fig 14 5 Recommended design of the generating set seating DAAE020067A 14 3 1 1 Rubber mounts The generating set i...

Страница 144: ...d to the engine or generating 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...

Страница 145: ...ld avoid 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 frequen...

Страница 146: ...144 150 8 8 108 112 5 47 47 72 75 24 46 23 36 37 5 720 750 12V31 1 1 168 175 1 1 126 131 38 38 84 88 8 8 42 44 720 750 14V31 1 1 192 200 1 1 144 150 24 24 96 100 28 28 48 50 720 750 16V31 15 3 Mass mo...

Страница 147: ...The results represent typical exhaust gas free field linear sound power levels at engine full load and nominal speed Exhaust Gas Sound Power Level in Octave Frequency Band dB ref 1pW Total 4000 2000...

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Страница 149: ...e flywheel end Therefore also a 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...

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Страница 151: ...ce work on the engine it is advised to build the maintenance platforms on recommended elevations The width of the platforms should be at minimum 800 mm to allow adequate working space The surface of m...

Страница 152: ...nents Size of the service area is dependent of the overhauling strategy chosen e g one cylinder at time one bank at time or the whole engine at time Service area should be plain steel deck dimensioned...

Страница 153: ...1 Service space requirement 17 3 1 1 Service space requirement Fig 17 1 Service space requirement DAAF063858 W rtsil 31 Product Guide a1 18 October 2016 17 3 17 Engine Room Layout W rtsil 31 Product G...

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Страница 155: ...Engine TC in FWE 1496 846 3048 2416 6280 7126 2235 560 760 1920 W 8V31 1496 846 3048 2416 6280 7126 2235 1206 1406 1920 W 10V31 TC in FE 1496 846 3048 2416 6280 7126 2235 560 760 1920 W 8V31 1496 846...

Страница 156: ...18 2 Lifting of generating sets Fig 18 2 Lifting of generating sets DAAF341224 18 2 W rtsil 31 Product Guide a1 18 October 2016 W rtsil 31 Product Guide 18 Transport Dimensions and Weights...

Страница 157: ...500 812 1028 785 W 8V31 500 812 1028 785 W 10V31 Fig 18 4 Charge air cooler HP Dimensions mm Weight kg Engine I H G 625 850 1170 830 W 8V31 625 850 1170 830 W 10V31 Fig 18 5 Charge air cooler LP Dimen...

Страница 158: ...sions mm Weight kg Engine K J 891 1610 680 W 8V31 891 1610 680 W 10V31 Fig 18 7 Turbocharger HP 18 4 W rtsil 31 Product Guide a1 18 October 2016 W rtsil 31 Product Guide 18 Transport Dimensions and We...

Страница 159: ...ston 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 3 Exhaust valve...

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Страница 161: ...DF 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 Business Onlin...

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Страница 163: ...f 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 Flow conversion...

Страница 164: ...20 2 Collection of drawing symbols used in drawings Fig 20 1 List of symbols DAAE000806c 20 2 W rtsil 31 Product Guide a1 18 October 2016 W rtsil 31 Product Guide 20 ANNEX...

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Страница 168: ...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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