exchanger design and rating v8 4換熱器設(shè)計(jì)源文件脫硫工段e0108

Size 304.8

/ 5486.4mm

Type

BEM

Hor Connectedin

1

parallel

1

series

Surf/unit(eff.)

30.8 m2

Shells/unit

1

Surf/shell(eff.)

30.8

m2

PERFORMANCEOFONEUNIT

Fluidallocation

ShellSide

TubeSide

Fluidname

原料物流

冷卻水

Fluidquantity,Total kg/h

16251

27000

Vapor(In/Out) kg/h

13463

13059

0

0

Liquid kg/h

2788

3192

27000

27000

Noncondensable kg/h

0

0

Temperature(In/Out) C

96.2

29.63

10

35.7

Dew/Bubblepoint C

147.2

-234.04

Density(Vap/Liq) kg/m3

18.27

/ 921.09

/989.12

/1000.56

/ 993.88

Viscosity cp

.0144

/ .2899

/.8231

/1.2822

/ .7296

Molecularwt,Vap

41.88

43.18

Molecularwt,NC

Specificheat kcal/(kg*C)

.2865

/ 1.0813

/1.0678

/.9989

/ .9965

Thermalconductivity kcal/(h*m*C)

.017

/ .408

/.463

/ .503

/ .534

Latentheat kcal/kg

541.55

702.84

Pressure(abs) kgf/cm2

12.237

12.059

1.033

.999

HeatExchangerSpecificationSheet

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26Velocity

m/s

10.2

.46

27Pressuredrop,allow./calc.

kgf/cm2

.264

.178

.211

.034

28Foulingresistance(min)

m2*h*C/kca

0

0

0

Aobased

29Heatexchanged

691741

kcal/h

MTDcorrected

40.46

C

30Transferrate,Service

555.8

Dirty

570.7

Clean

570.7

kcal/(h*m2*C)

31 CONSTRUCTIONOFONESHELL Sketch

32

Design/vac/testpressure:g kgf/cm2

Designtemperature C

Numberpassespershell

Corrosionallowance mm

ShellSide

14.061/ /

271.11

1

3.18

TubeSide

3.515 / /

271.11

1

3.18

S1T2

Connections

In mm1 203.2/ -

1 76.2 / -

TS2

Size/rating

Out

1 152.4/ -

1 76.2 / -

Nominal

Intermediate / -

/ -

40TubeNo.

95

OD

19.05

Tks-

Avg

2.11

mm

Length5486.4mm

41Tubetype

Plain

Material

CarbonSteel

Pitch23.81 mmTubepattern 30

42Shell CarbonSteel ID 307.09 OD323.85 mm

43Channelorbonnet CarbonSteel

44Tubesheet-stationary CarbonSteel

45Floatingheadcover -

46Baffle-cross CarbonSteel Type Singlesegmental Cut(%d)

Shellcover -

Channelcover -

Tubesheet-floating -Impingementprotection None

43.28H Spacing:c/c 450.85 mm

47Baffle-long

-

Sealtype

Inlet

676.28

mm

48Supports-tube

U-bend

Type

49Bypassseal

Tube-tubesheetjoint

Exp.2grv

50Expansionjoint

- Type

51RhoV2-Inletnozzle 891 Bundleentrance 437 Bundleexit 221 kg/(m*s2)

52

Gaskets-Shellside

- TubeSide

FlatMetalJacketFibe

53

Floatinghead

-

54

Coderequirements

ASMECodeSecVIIIDiv1

TEMAclass R-refineryservice

55

Weight/Shell

1076

Filledwithwater

1440.1

Bundle540

kg

56

Remarks

57

58

OverallPerformance

Design(Sizing) ShellSide TubeSide

Totalmassflowrate kg/h 16251 27000

Vapormassflowrate(In/Out)

kg/h

13463

13059

0

0

Liquidmassflowrate

kg/h

2788

3192

27000

27000

Vapormassquallity

.83

.8

0

0

Temperatures

C

96.2

29.63

10

35.7

Dewpoint/Bubblepoint

C

147.2

OperatingPressures

kgf/cm2

12.237

12.059

1.033

.999

Filmcoefficient

kcal/(h*m2*C)

911.1

1662.9

Foulingresistance

m2*h*C/kcal

0

0

Velocity(highest)

m/s

10.2

.46

Pressuredrop(allow./calc.)

kgf/cm2

.264

/

.178

.211

/

.034

Totalheatexchanged

kcal/h

691741

Unit

BEM 1pass

1 ser

1

par

Overallcleancoeff.(plain/finned)

kcal/(h*m2*C)

570.7

/

Shellsize

304.8

-

5486.4

mm

Hor

Overalldirtycoeff.(plain/finned)

kcal/(h*m2*C)

570.7

/

Tubes

Plain

Effectivearea(plain/finned)

m2

30.8

/

No.

95

OD

19.05

Tks

2.11

mm

EffectiveMTD

C

40.46

Pattern

30

Pitch

23.81

mm

Actual/Requiredarearatio(dirty/clean)

1.03

/

1.03

Baffles

Singlesegmental

Cut(%d) 43.28

Vibrationproblem(Tasc/TEMA)RhoV2problem

Possible

/

No

Yes

Totalcost

16038

Dollar(US)

ResistanceDistribution

OverallCoefficient/ResistanceSummary

Clean

Dirty

MaxDirty

Arearequired m2

30

30

30.8

Arearatio:actual/required

1.03

1.03

1

Overallcoefficient

kcal/(h*m2*C)

570.7

570.7

555.8

Overallresistance

m2*h*C/kca

.00175

.00175

.0018

Shellsidefouling

m2*h*C/kca

0.0

0

.00002

Tubesidefouling

0.0

0

.00002

ResistanceDistribution

kcal/(h*m2*C)

m2*h*C/kcal

%

%

%

Shellsidefilm

18729

.0011

62.64

62.64

61

Shellsidefouling

0

0

1.3

Tubewall

18729

.00005

3.05

3.05

2.97

Tubesidefouling*

0

0

1.3

Tubesidefilm*

1662.9

.0006

34.32

34.32

33.42

*Basedonoutsidesurface-Arearatio:Ao/Ai= 1.28

HeatTransferCoefficients

Filmcoefficients

kcal/(h*m2*C)

ShellSide

TubeSide

Barearea(OD) / Finnedarea

Barearea(OD) / IDarea

Overallfilmcoefficients

911.1 /

1662.9

/ 2135.6

Vaporsensible

/

/

Twophase

911.1 /

/

Liquidsensible

/

1662.9

/ 2135.6

HeatTransferParameters

In

Out

In

Out

Prandtlnumbers

Vapor

.85

.94

Liquid

2.77

6.84

9.17

4.91

Reynoldsnumbers

VaporNominal

169646.2

197812.2

LiquidNominal

1743.54

703.87

5284.8

9287.66

MTDandFlux

TemperatureDifference

C

HeatFlux(basedontubeO.D)

kcal/(h*m2)

OveralleffectiveMTD

40.46

Overallactualflux

23178

OnepasscounterflowMTD

40.43

Criticalflux

LMTDbasedonendpoints

36.31

Highestactualflux

45499

EffectiveMTDcorrectionfactor

1.11

Highestactual/criticalflux

WallTemperatures

C

Shellmeanmetaltemperature

58.05

Tubemeanmetaltemperature

33.65

Tubewalltemperatures(highest/lowest)

60.17

/ 15.88

DutyDistribution

HeatLoadSummary

ShellSide

TubeSide

kcal/h

%total

kcal/h

%total

Vaporonly

0

0

0

0

2-Phasevapor

-243263

35

0

0

Latentheat

-230151

33

0

0

2-Phaseliquid

-218328

32

0

0

Liquidonly

0

0

691741

100

Total

-691741

100

691741

100

PressureDrop

PressureDrop kgf/cm2

ShellSide

TubeSide

Maximumallowed

.264

.211

Totalcalculated

.178

.034

Gravitational

0

0

Frictional

.179

.034

Momentumchange

-.001

0

Pressuredropdistribution

m/s

kgf/cm2

%dp

m/s

kgf/cm2

%dp

Inletnozzle

6.37

.007

3.76

1.57

.013

38.57

Enteringbundle

4.46

.46

.001

1.53

Insidetubes

.46 .46

.014

39.57

InletspaceXflow

4.7

.012

6.86

BaffleXflow

7.05 5.02

.058

32.25

Bafflewindows

10.2 7.26

.079

44.4

OutletspaceXflow

3.35

.009

5.08

Exitingbundle

2.68

.46

.001

2.4

Outletnozzle

7.87

.014

7.66

1.58

.006

17.92

Intermediatenozzles

ThermosiphonPiping

Pipingreferencepoints

mm

Pressurepoints

kgf/cm2

C

Quality

Heightofliquidincolumn

HeightofheattransferregioninletHeightofheattransferregionoutletHeightofcolumnreturnline

LiquidlevelincolumnInlettoheatedsectionBoilingboundarypositionOutletofheatedsection

Exitofoutletpiping

35.7

0

Pressurechanges(-loss/+gain)

kgf/cm2

Inletcircuit

Exchanger

Outletcircuit

FrictionalGravitationalMomentumFlashingNozzles

Total

InletCircuitPiping

Inletcircuitelement

Frictionalpressuredropatentry kgf/cm2

Frictionalpressuredropatelement kgf/cm2

OutletCircuitPiping

Outletcircuitelement

Frictionalpressuredropatentry kgf/cm2

Frictionalpressuredropatelement kgf/cm2

Voidfraction

Twophaseflowpattern

FlowAnalysis

ShellSideFlowFractions

Inlet

Middle

Outlet

DiameterClearance mm

Crossflow

.77

.68

.77

Window

.88

.77

.88

Bafflehole-tubeOD

.07

.13

.07

.79

BaffleOD-shellID

.05

.1

.05

3.18

ShellID-bundleOTL

.11

.1

.11

12.7

Passlanes

0

0

0

Rho*V2Analysis

Flowarea

mm2

Velocity

m/s

Density

kg/m3

Rho*V2

kg/(m*s2)

TEMAlimit

kg/(m*s2)

Shellinletnozzle

32275

6.37

21.96

891

744

Shellentrance

46607

4.41

21.96

427

5953

Bundleentrance

46100

4.46

21.96

437

5953

Bundleexit

54666

2.68

30.79

221

5953

Shellexit

18512

7.92

30.79

1931

5953

Shelloutletnozzle

18639

7.87

30.79

1905

mm2

m/s

kg/m3

Tubeinletnozzle

4769

1.57

1000.56

2471

8928

Tubeinlet

16417

.46

1000.56

209

Tubeoutlet

16417

.46

993.88

210

Tubeoutletnozzle

4769

1.58

993.88

2488

ThermosiphonsandKettles

Thermosiphons

Thermosiphonstability

Verticaltubesidethermosiphons

Flowreversalcriterion-topofthetubes(shouldbe>0.5)Floodingcriterion-topofthetubes(shouldbe>1.0)Fractionofthetubelengthflooded

KutateladzeNumberinaxialnozzle

Kettles

Recirculationratio

QualityattopofbundleEntrainmentfraction

MethodsSummary

Hotside

Coldside

HeatTransferCoefficientmultiplier

No

No

HeatTransferCoefficientspecified

No

No

Pressuredropmultiplier

No

No

Pressuredropcalculationoption

frictiononly

frictiononly

Calculationmethod

Advancedmethod

DesuperheatingheattransfermethodMulticomponentcondensingheattransfermethodVaporshearenhancedcondensation

Liquidsubcoolingheattransfer(verticalshell)

WetwallHTFS-Silver-Bell

YesNotUsed

Subcooledboilingaccountedforin

PostdryoutheattransferaccountedforinCorrectiontouser-suppliedboilingcurveFallingfilmevaporationmethod

Heattransfer&pressuredropNo

BoilingcurvenotusedHTFSrecommendedmethod

SinglephasetubesideheattransfermethodLowfinCalculationmethod

HTFSrecommendedmethodHTFS/ESDU

FluidElasticInstabilityAnalysis(HTFS)

Vibrationtubenumber

1

2

4

5

6

8

Vibrationtubelocation Inletrow,centreOuterwindow,bottomBaffleoverlap BottomRow Inletrow,end Outerwindow,t

Vibration

No

Possible

No

No

No

Possible

W/Wcforheavydamping

(LDec=0.1)

.31

.39

.09

.2

.31

.39

W/Wcformediumdamping(LDec=0.03)

.57

.72

.16

.36

.57

.72

W/Wcforlightdamping (LDec=0.01)

.99

1.24

.27

.62

.99

1.24

W/Wcforestimateddamping

.67

.84

.16

.42

.67

.83

EstimatedlogDecrement

.02

.02

.03

.02

.02

.02

Tubenaturalfrequency

cycle/s

53.06

53.06

159.22

53.06

53.06

53.06

Naturalfrequencymethod

ExactSolution

ExactSolution

ExactSolution

ExactSolution

ExactSolution

ExactSolutio

Dominantspan

Tubeeffectivemass

kg/m

1.06

1.06

1.06

1.06

1.06

1.06

Note:W/Wc=ratioofactualshellsideflowratetocriticalflowrateforonsetoffluid-elasticinstability

Tubematerialdensity

kg/m3

7841.74

Tubeaxialstress

kgf/mm2

-.34

TubematerialYoung'sModulus

U-bendlongestunsupportedlength

kgf/mm2

mm

20519.47

ResonanceAnalysis(HTFS)

Vibrationtubenumber

1

1

1

2

2

2

Vibrationtubelocation Inletrow,centre Inletrow,centre Inletrow,centreOuterwindow,bottomOuterwindow,bottomOuterwindow,bo

Locationalongtube

Vibrationproblem

Inlet

No

Midspace

Possible

Outlet

No

Inlet

Possible

Midspace

No

Outlet

Possible

Spanlength

mm

676.28

901.7

1127.12

1127.12

901.7

676.28

Frequencyratio:Fv/Fn

2.04

1.5

.67

1.12

1.88

.84

Frequencyratio:Fv/Fa

.22

.18

.09

.12

.23

.11

Frequencyratio:Ft/Fn

1.31

.96

.43

.72

1.21

.54

Frequencyratio:Ft/Fa

.14

.12

.06

.08

.15

.07

Vortexsheddingamplitude

mm

.18

Turbulentbuffetingamplitude

mm

.04

.05

TEMAamplitudelimit

mm

.38

.38

.38

Naturalfreq.,Fn

cycle/s

53.06

53.06

53.06

53.06

53.06

53.06

Acousticfreq.,Fa

cycle/s

484.26

434.84

403.6

484.26

434.84

403.6

Flowvelocity

m/s

4.46

3.28

1.46

2.46

4.1

1.83

X-flowfraction

1

.8

.8

.8

.8

.8

RhoV2

kg/(m*s2)

437

289

66

133

453

103

StrouhalNo.

.46

.46

.46

.46

.46

.46

SimpleFluidElasticInstability(TEMA)

Tubematerialdensity kg/m3 7841.74

Tubeaxialstress kgf/mm2 -.34

TubematerialYoung'sModulus kgf/mm2 20519.47

Inlet C-CWindow C-COverlap Outlet

Vibrationindication

Unsupportedspan mm

Tubenaturalfrequency,fn cycle/s

Crossflowvelocity m/s

Criticalvelocity m/s

CrossflowtocriticalvelocityratioEstimatedlogdecrement

AmplitudeVibrationAnalysis(TEMA)

VortexsheddingindicationTurbulentbuffetingindication

Tubenaturalfrequency,fn cycle/s

Vortexsheddingfrequency,fvs cycle/s

Vortexsheddingamplitude mm

Vortexsheddingamplitudelimit mm

Vortexsheddingamplitudelimit mm

Turbulentbuffettingamplitude mm

Turbulentbuffettingamplitudelimit mm

AcousticVibrationAnalysis(TEMA)

Acousticresonanceindication

Crossflowvelocity m/s

Strouhalnumber

Acousticfrequency,fa cycle/s

Inlet C-CWindow C-COverlap Outlet

Inlet C-CWindow C-COverlap Outlet

Vortexsheddingfrequency,fvs cycle/s

Turbulentbuffettingfrequency,ftb cycle/s

ConditionAfa/fvsConditionAfa/ftb

ConditionBvelocity m/s

ConditionCvelocity m/s

ConditionC

ShellSide

ShellSide

ShellSide

TubeSide

TubeSide

TubeSide

Nozzletype

Inlet

Outlet

Inlet

Outlet

Numberofnozzles

1

1

1

1

Actualoutsidediameter mm

219.08

168.28

88.9

88.9

Insidediameter mm

202.72

154.05

77.93

77.93

Heightundernozzle mm

82.15

40.91

Domeinsidediameter mm

Vaporbeltinsidediameter mm

Vaporbeltinsidewidth mm

Vaporbeltslotarea mm2

Impingementprotection

Noimpingement

Noimpingement

Noimpingement

BasicGeometry

UnitConfiguration

ExchangertypePositionArrangementBaffletypeBafflenumber

Spacing(cen-cen)

Spacingatinlet

BEM

1 parallel 1 seriesSinglesegmental

10

mm 450.85

mm 676.28

Tubenumber 95

Tubelengthactual mm 5486.4

Tubepasses 1

Tubetype Plain

TubeO.D. mm 19.05

Tubepitch mm 23.81

Tubepattern 30

Shell Kettle Fronthead RearHead

Outsidediameter mm 323.85 323.85 323.85

Insidediameter mm 307.09 307.09 307.09

196.85

5257.8

mm

Distancetotubesheet

Tubes

Tubes

Type

Plain

Totalnumberoftubes

95

Outsidediameter

mm

19.05

Numberoftubesplugged

0

Insidediameter

mm

14.83

Tubelengthactual

mm

5486.4

Wallthickness

mm

2.11

Tubelengtheffective

mm

5410.2

AreaRatioAo/Ai

1.28

Tubesheetthickness

mm

34.92

Pitch

mm

23.81

Material

CarbonSteel

Pattern

30

Thermalconductivity

kcal/(h*m*C)

44.684

Externalenhancement

Internalenhancement

Lowcircumferentialfins

Lowlongitudinalfins

fin

FindensityFinheightFinthickness

Tuberootdiameter

Tubewallthicknessunder

#/mmmmmmm

mm

FinnumberFinthicknessFinheightFinspacing

Cutandtwistlength

mmmmmm

mm

0

Baffles

Baffles

Type

Singlesegmental

Bafflecut:inner/outer/interm

Tubesinwindow

Yes

Actual(%diameter)

/ 43.28

/

Number

Spacing(center-center)SpacingatinletSpacingatoutlet

Spacingatcenterin/outforG,H,I,JSpacingatcenterforHshell

Endlengthofthefronthead

mmmmmmmmmmmm

10

450.85

676.28

676.28

714.38

Nominal(%diameter)Actual(%area)

CutorientationThickness

TuberowsinbaffleoverlapTuberowsinbafflewindow

Bafflehole-tubeoddiamclearance

Shellid-tubeoddiamclearance

/ 40

/ 41.48

mm

mm

mm

/

/

3.

18

H4.76

2

2.5

.79

Endlengthoftherearhead

mm

714.38

VariableBaffleSpacings

Bafflespacing mm

Bafflecutpercent,outerBafflecutpercent,innerNumberofbafflespaces

Baffleregionlength mm

Bafflecutareapercent,outerBafflecutareapercent,inner

SupportsunderinletnozzleSupportsunderoutletnozzleSupportsbetweenbaffles

Supportsblankingbaffles

Supports-tubes

Longitudinalbaffle

Thickness

mm

Windowlengthatfrontend

mm

0

Windowlengthatcenter

mm

No

Windowlengthatrearend

mm

Supports-Misc.Baffles

0

0

0

0

Supportsatu-bend

Supportsatin/outofG,H,I,Jshell

SupportsatcenterofHshellSupportsforK,Xshells

Bundle

ShellIDtocenter1sttuberow

Fromtop mm 82.15

Frombottom mm 40.91

Fromright mm 13.05

Fromleft mm 13.05

Impingementprotection None

Impingementdistance mm

Impingementplatediameter mm

Impingementplatewidth mm

Impingementplatelength mm

Grosssurfaceareapershell m2 31.2

Effectivesurfaceareapershell m2 30.8

Baretubeareapershell m2 30.8

Finnedareapershell m2 0

U-bendareapershell m2 0

Tubepasses 1

Tubepasslayout Ribbon(singleband)

Tubepassorientation Standard(horizontal)

U-bendorientation Undefined

Horizontalpasslanewidth mm

Verticalpasslanewidth mm

Interpasstubealignment No

Deviationintubes/pass 0

Outertubelimit mm 294.39

Shellid-bundleotldiamclearance mm 12.7

Tierodnumber 4

Tieroddiameter mm 9.55

Sealingstrips(pairs) 1

TubetoTubesheetjoint Exp.2grv

Tubeprojectionfromfronttsht mm 3.18

Tubeprojectionfromreartsht mm 3.18

Enhancements

mm

tape

Twisted

thickness

mm

None

Tubeinserttype

Twisttape360degtwistpitch

Internalenhancements

ThermosiphonPiping

Inletcircuit

Inletcircuitelement

Insidediameter mm

Lengthorradius mm

NumberinparallelNumberinseries

Outletcircuit

Inletcircuitelement

Insidediameter mm

Lengthorradius mm

NumberinparallelNumberinseries

Cost/Weights

Weights

kg

Costdata

Dollar(US)

Shell

458.9

Laborcost

117