Mitsubishi Auxiliary Boiler : MAC-BMitsubishi Auxiliary Boiler Mitsubishi Auxiliary Boiler :: MACMAC--BB

Meaning of Meaning of MACMAC--BBM : MitsubishiM : MitsubishiA : AuxiliaryA : AuxiliaryC : CompactC : CompactB : TypeB : Type

December, 2007

History of Mitsubishi Marine BoilerHistory of Mitsubishi Marine BoilerHistory of Mitsubishi Marine Boiler

＊＊1885 : The first Marine Boiler manufactured1885 : The first Marine Boiler manufactured

＊＊1964 : The first Two1964 : The first Two--drum waterdrum water--walled MAC Boilerwalled MAC Boiler

＊＊1983 : The first MAC1983 : The first MAC--B manufacturedB manufactured

--More than 120 years historyMore than 120 years history

＊＊TwoTwo--Drum WaterDrum Water--Tube MAC Boiler :Total 1,393Tube MAC Boiler :Total 1,393

＊＊MACMAC--B Boiler : Total 1,227B Boiler : Total 1,227 (As of Nov. 2007)(As of Nov. 2007)

--Total Total 505000 Boilers 00 Boilers (including Main Boiler)(including Main Boiler)

'92 '94 '96 '98 '00 '02 '04 '06

56

37

24

4240

63

9396

7063

94101

82

54

7079

0

25

50

75

100

125B

oile

r

Year

(’07 Plan)

Production Record (MAC-B Type Boiler)Production Record (MACProduction Record (MAC--B Type Boiler)B Type Boiler)

AppearanceAppearanceAppearance Steam DrumSteam Drum

Water DrumWater Drum

F.O.BurnerF.O.Burner

43433737343434343030292922222020202019191313111110101010tontonWater weightWater weight

1141149898757573737272676754544949474744443535313128282626tontonDry weightDry weight

8329832975727572681568156058605853005300454345434165416537873787340734073029302927162716232823281940194015521552kg/hkg/hFOCFOC

11--Soot blowerSoot blower

2 or 32 or 311--No. of burnerNo. of burner

60/3860/38℃℃Feed water/ Feed water/

Air temp.Air temp.

82.582.580.580.5%%Boiler EfficiencyBoiler Efficiency

SaturatedSaturated℃℃Steam Temp.Steam Temp.

18/16 18/16 (1.77/1.57MPa)(1.77/1.57MPa)kg/cm2gkg/cm2gDesign/Design/Working Press.Working Press.

110110100100909080807070606055555050454540403535303025252020t/ht/hMax. Max. EvapEvap..

110B110B100B100B90B90B80B80B70B70B60B60B55B55B50B50B45B45B40B40B35B35B30B30B25B25B20B20BMACMAC--TypeType

Standard SpecificationStandard SpecificationStandard Specification

Design/Working Press is changeable according to request

MACMAC -- ****BBEx) 40Ex) 40t/ht/h boiler boiler →→ MACMAC--40B40B

Steam Steam OutletOutlet

Combustion Combustion Air InletAir Inlet

GeneratingGenerating TubeTube

Steam Steam DrumDrum

Water Water DrumDrum

Soot BlowerSoot Blower

Screen TubeScreen Tube

Front(Rear) Front(Rear) Wall TubeWall Tube

StructureStructureStructureF.O.BurnerF.O.Burner

Steam SeparatorSteam Separator

FurnaceFurnace

GasOutletGasGasOutletOutlet

Combustion Gas FlowCombustion Gas FlowCombustion Gas Flow

Baffle PlateBaffle Plate

Partition water wallPartition water wall

Wind BoxWind Box

--Easy inspection and maintenanceEasy inspection and maintenance--Two manholesTwo manholes--InIn--line tube arrangementline tube arrangement--Less soot deposit using bare tubesLess soot deposit using bare tubes--Applicable soot blower during boiler operationApplicable soot blower during boiler operation((SSoot blower is standard equipment)oot blower is standard equipment)

--TwoTwo--drum waterdrum water--walled typewalled type--Long lifetime due to fLong lifetime due to furnace surrounded by urnace surrounded by water wallwater wall tubestubes and no thermal stress constructionand no thermal stress construction--Stable Combustion with large furnaceStable Combustion with large furnace--Pure steamPure steam

--Safe OperationSafe Operation--Easy operation and monitoring using Graphic panelEasy operation and monitoring using Graphic panel--Stable water levelStable water level--Back fire protection Back fire protection of of boiler control systemboiler control system

--Production CapacityProduction Capacity :: 120 boilers/year120 boilers/year

Advantages of MAC-BAdvantages of MACAdvantages of MAC--BB

InIn--llineine tube arrangementtube arrangement

manholemanhole

Soot Soot blowerblower

Steam separator & baffle plateSteam separator & baffle plate

Boiler Control SystemBoiler Control SystemBoiler Control System

ACCACCFWCFWC

: Automatic Boiler Control : Automatic Boiler Control : Automatic Combustion Control : Automatic Combustion Control : Feed Water Control : Feed Water Control : Burner Management System: Burner Management System

ABCABC

BMSBMS

Control FO control Control FO control valvevalve by detecting FO by detecting FO pressure at FO headerpressure at FO header

Control F.D.FAN inlet vane by detecting burner Control F.D.FAN inlet vane by detecting burner draft lossdraft loss (between wind box and furnace)(between wind box and furnace)

①① Control FW control V/V by detecting drum Control FW control V/V by detecting drum water level (1 element type)water level (1 element type)

②② Use Steam Flow as Feed Forward signal Use Steam Flow as Feed Forward signal when there are 2 boiler control (2 elements type)when there are 2 boiler control (2 elements type)

Steam press. control ：Steam press.Steam press. control control ：： Control FO flow to reduce the deviation with Control FO flow to reduce the deviation with setting pressure by detecting Drum pressuresetting pressure by detecting Drum pressure

FO Flow control ：FO FlowFO Flow control control ：：

Air Flow control ：Air FlowAir Flow control control ：：

FW flow control ：FW flow control FW flow control ：：

Wind boxWind box

FurnaceFurnace

Differential Pressure Differential Pressure = Burner draft loss= Burner draft loss

((Burner draft Burner draft loss) loss) = (Wind box press.) = (Wind box press.) –– (Furnace press.)(Furnace press.)

Auto start/stop of Slave boilerAuto start/stop of Slave boileraccording to Master boiler loadaccording to Master boiler load

Master/SlaveMaster/SlaveOperationOperation

Depend on Steam PressureDepend on Steam PressureBurner AutoBurner AutoStart/StopStart/Stop

N/AN/A--Cancel unnecessary alarmCancel unnecessary alarmwhile Boiler Stopswhile Boiler StopsReposeRepose

N/AN/A--IGS ToppingIGS Topping--upup(interlock with soot blower)(interlock with soot blower)IGS Top UpIGS Top Up

5.5k/7k5.5k/7k(0.54/0.69MPa)(0.54/0.69MPa)

6k6k(0.59MPa)(0.59MPa)

ExhExh. Eco. Back up. Eco. Back upduring voyageduring voyageECO Back upECO Back up

12k/16.5k12k/16.5k(1.18/1.62MPa)(1.18/1.62MPa)

16k 16k (1.57MPa)(1.57MPa)COPT operationCOPT operationTanker ServiceTanker Service

Burner AutoBurner AutoStart/StopStart/Stop

SteamSteamPress.Press.ConditionConditionBoiler ModeBoiler Mode

--Automatic Operation Automatic Operation

--Boiler ModeBoiler Mode

Start : Steam Press. 12k(1.18MPa)

Stop : Steam Press. 16.5k(1.62MPa)

Start : Boiler load 60%

Stop : Boiler load 25%

Local Boiler Control Panel

Graphic Panel

Condition Monitor

Graphic PanelGraphic Panel

Condition Monitor

Boiler Control PanelBoiler Control Boiler Control PanelPanel

BusanBusan<HARRIS PYE KOREA><HARRIS PYE KOREA><<TK TK MACHINERY>MACHINERY>

ShanghaiShanghai<<SHINSEI KOGYOSHINSEI KOGYO>><<HARRIS PYE CHINAHARRIS PYE CHINA>>2006 OPEN2006 OPEN

SingaporeSingapore<TAKNAS><TAKNAS><<HARRIS PYEHARRIS PYE>>

DubaiDubai<<TAKNASTAKNAS>><<HARRIS PYEHARRIS PYE>>

HoustonHouston<<TOEITOEI>><<TAKNASTAKNAS>>

HamburgHamburg<<TAKNASTAKNAS>>

U.K.U.K.<<HARRIS PYEHARRIS PYE>>

PortugalPortugal<<HARRIS PYEHARRIS PYE>>

Kobe, JapanKobe, Japan<<SHINSEI KOGYOSHINSEI KOGYO>><<HARRIS PYEHARRIS PYE>>Nagasaki, JapanNagasaki, Japan<SHINSEI KOGYO><SHINSEI KOGYO><TOYO DENGYO><TOYO DENGYO><<AMCOAMCO Engineering>Engineering>

Rio de JaneiroRio de Janeiro<<HARRIS PYEHARRIS PYE>>

<CONTROL PANEL MANUFACTURER> TOYO DENGYO, AMCO Engineering<CONTROL PANEL MANUFACTURER> TOYO DENGYO, AMCO Engineering<CONTROL EQUIPMENT A/S FIRM> <CONTROL EQUIPMENT A/S FIRM> TAKNAS, TK MACHINERY TAKNAS, TK MACHINERY <REPAIRER><REPAIRER> HARRIS PYE, SHINSEI KOGYO, TOEIHARRIS PYE, SHINSEI KOGYO, TOEI

DenmarkDenmark<<HARRIS PYEHARRIS PYE>>

BahrainBahrain<<HARRIS PYEHARRIS PYE>>

Mitsubishi Heavy Industries, Ltd. Mitsubishi Heavy Industries, Ltd. Nagasaki Shipyard & Machinery WorksNagasaki Shipyard & Machinery Works

MHI Marine Engineering, Ltd.MHI Marine Engineering, Ltd.

Yokohama, JapanYokohama, Japan<<SHINSEI KOGYOSHINSEI KOGYO>>

(TOKYO)(TOKYO)+81+81--33--37983798--59415941

OfficeOfficeTechnical AgentTechnical Agent

Tokyo, JapanTokyo, Japan

New DelhiNew Delhi

JakartaJakarta

Hong KongHong Kong

TaipeiTaipeiBeijingBeijing

Ho Chi Ho Chi MinhMinh

IstanbulIstanbul

MoscowMoscow

MunichMunich

ParisParis

MadridMadrid

SeattleSeattleLos AngelesLos Angeles Hartford (Connecticut)Hartford (Connecticut)

Fort Worth (Texas)Fort Worth (Texas)

BostonBoston

MexicoMexico

Sao Paulo (CBC)Sao Paulo (CBC)

New YorkNew York

After-sales Service Network in the WorldAfterAfter--sales Service Network in the Worldsales Service Network in the World

GO Firing for SOx Emission Control (1/3)GO Firing for SOx Emission Control (1/3)GO Firing for SOx Emission Control (1/3)

-- SOx Emission Control in EUSOx Emission Control in EU

2007.112007.11～～NNorth Seaorth Sea

Other SeaOther Sea4.54.5％％

2010.1.12010.1.1～～AllAll Ports in EUPorts in EU0.1%0.1%

2006.52006.5～～BBalticaltic SSeaea1.51.5％％

OperationOperationAreaAreaSulfur content Sulfur content of fuel oilof fuel oil

Applying Applying ““LowLow--Sulfur Fuel Oil (Gas Oil)Sulfur Fuel Oil (Gas Oil)””: DMA Grade of : DMA Grade of ISOISO 82178217

NORTH SEA

BALTIC SEA

By CraftMAP

The only measure is The only measure is ・・・・・・

GO Firing for SOx Emission Control (2/3)GO Firing forGO Firing for SOx Emission Control (2/3)SOx Emission Control (2/3)

-- Indispensable Item for applying GAS OILIndispensable Item for applying GAS OIL

Boiler trip by Boiler trip by ““Heat trace onHeat trace on””““FO temp. highFO temp. high””

3) Additional 3) Additional interlockinterlock

Atomizing mediumAtomizing medium・・AirAir : Burner performance can be kept . : Burner performance can be kept . ・・SteamSteam : Burner turn down ratio decrease. : Burner turn down ratio decrease.

Atomizer must be changed to keep burner Atomizer must be changed to keep burner performance.performance.

Combustion control is also necessary to change Combustion control is also necessary to change according to the above modification.according to the above modification.

2) Change of 2) Change of atomizing mediumatomizing mediumor or atomizeratomizer itself itself

Modification of control systemModification of control system

Gas Oil ViscosityGas Oil Viscosity・・> 2.5 > 2.5 cStcSt : MHI standard FO pump (option) is available. : MHI standard FO pump (option) is available. ･･<< 2.5 2.5 cStcSt : Additional FO pump for Gas Oil is necessary.: Additional FO pump for Gas Oil is necessary.

**Viscosity criteria may be changed by pump makerViscosity criteria may be changed by pump maker..

Discharge pressure can not be taken for Gas Oil with low Discharge pressure can not be taken for Gas Oil with low viscosity by fuel oil pump planned only for HFO.viscosity by fuel oil pump planned only for HFO.

1) Additional 1) Additional fuel oil pumpfuel oil pumpfor Gas Oilfor Gas Oil

RemarksRemarksItemItem

GO Firing for SOx Emission Control (3/3)GO Firing forGO Firing for SOx Emission Control (3/3)SOx Emission Control (3/3)

-- Recommendation Item for applying GAS OILRecommendation Item for applying GAS OIL

･･For multiFor multi--burner boilerburner boiler･･Shorten ignition time at increasing firing burnerShorten ignition time at increasing firing burner

3) 3) Igniter Igniter for all burnersfor all burners

･･IIndependentndependent FO piping of Heavy Fuel Oil and FO piping of Heavy Fuel Oil and Gas Oil to the FO control valveGas Oil to the FO control valve・・AAvoid mixing Gas Oil with high temperature void mixing Gas Oil with high temperature Heavy Fuel Oil in case of bunker changeHeavy Fuel Oil in case of bunker change

2) Independent2) Independent fuel oil pipingfuel oil piping

Additional operation mode for GO firingAdditional operation mode for GO firing･･Combustion control change for GO firingCombustion control change for GO firing･･Activate additional interlockActivate additional interlock

-- Boiler trip by Boiler trip by ““Heat trace onHeat trace on”” , , ““FO temp. highFO temp. high””

1) 1) GO modeGO modeRemarksRemarksItemItem