烟风道整形METHOD STATEMENT FOR ROUNDNESS REPAIR WORK FOR FLUE GAS LINE AND DUCT.docx

烟风道整形METHOD STATEMENT FOR ROUNDNESS REPAIR WORK FOR FLUE GAS LINE AND DUCT.docx

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烟风道整形METHODSTATEMENTFORROUNDNESSREPAIRWORKFORFLUEGASLINEANDDUCT

VIETNAMOILANDGASCORPORATION（PETRO-VIETNAM）

DUNGQUATREFINERY（DQR）PROJECT

METHODSTATEMENTFORROUNDNESSREPAIRWORKFOR

FLUEGASLINEANDDUCT

DocumentNo.：

8474L-800-17059-6800-MS013－Rev.　A

DocumentClass:

Z

REVIEWBY:

TPC

REVIEWBYPMC/DQR

CODE1

ReviseandResubmit

CODE1

ReviseandResubmit

CODE2

ReviewWithCommentsWorkMayProceed/Revise&Resubmit

CODE2

ReviewwithcommentsWorkMayProceed/Revise&Resubmit

CODE3

ReviewWithoutCommentWorkMayProceed

CODE3

ReviewWithoutCommentWorkMayProceed

STAMP

STAMP

SIGNATURE

SIGNATURE

NAME

NAME

DATE

DATE

REVIEWSTATUS

A

Nov8,2007

ForReview

REV.

DATE

STATUS

ORIGINATOR（NAME&VISA）

CHECKER（NAME&VISA）

APPROVER（NAME&VISA）

DOCUMENTREVISIONS

CONTENT

1.PURPOSE

2.SCOPEOFWORK

3.REFERENCEDOCUMENTS

4.ORGNIZATIONCHART

5.CONSTRUCTIONPROCEDURE

6.HSE

Attachment.1.OrganizationChart

Attachment.2.roundnesschecktable

1.purpose

ThisprocedureisprovidedtoguidetheroundnessrepairworkforfluegaslineandductinME1inDungQuatrefineryproject.

Theprimaryobjectiveshallbeconformedinfullwiththeprojectspecificationandensurethatallqualityandsafetyrequirementiscompliedwithaccordingly.

2.scopeOFWORK

Thisproceduredescribesthesiteactivitiesofrepairingroundnessworkforfluegaslineandduct.thedetaillineandductlistasfollowing:

A.Line150047（1stRgFlueGasLine）:

15spools

No.

DWG.No.

TagNo

DetailDwgNo

Priority

1

J-06010-39A

Line150047

A

V-216G-104-A-301

1

2

J-06010-39A

Line150047

B

V-216G-104-A-301

2

3

J-06010-39A

Line150047

C

V-216G-104-A-302

3

4

J-06010-39A

Line150047

D

V-216G-104-A-302

4

5

J-06010-39A

Line150047

E

V-216G-104-A-302

54

7

J-06010-39A

Line150047

G

V-216G-104-A-303

56

8

J-06010-39B

Line150047

H

V-216G-104-A-303

57

10

J-06010-39B

Line150047

K

V-216G-104-A-304

59

11

J-06010-39B

Line150047

L

V-216G-104-A-304

60

12

J-06010-39B

Line150047

P

V-216G-104-A-306

61

13

J-06010-39B

Line150047

M

V-216G-104-A-306

62

14

J-06010-39B

Line150047

N

V-216G-104-A-306

63

B.Line150054（2ndRgFlueGasLine）:

26spools

No.

DWG.No.

TagNo

DetailDwgNo

Priority

1

J-06010-41A

Line150054

A

V-216G-104-A-321

19

2

Line150054

B

V-216G-104-A-321

18

3

Line150054

C

V-216G-104-A-321

17

4

Line150054

D

V-216G-104-A-321

16

5

Line150054

E

V-216G-104-A-322

15

6

Line150054

F

V-216G-104-A-322

14

7

Line150054

G

V-216G-104-A-322

13

8

Line150054

H

V-216G-104-A-323

12

9

Line150054

J

V-216G-104-A-323

11

10

Line150054

K

V-216G-104-A-323

10

11

Line150054

L

V-216G-104-A-323

9

12

Line150054

M

V-216G-104-A-325

8

13

Line150054

N

V-216G-104-A-325

7

14

Line150054

P

V-216G-104-A-325

6

15

Line150054

Q

V-216G-104-A-325

5

16

Line150054

Q1

V-216G-104-A-325

43

17

Line150054

R

V-216G-104-A-325

44

18

Line150054

S

V-216G-104-A-325

45

19

Line150054

T

V-216G-104-A-326

46

20

Line150054

U

V-216G-104-A-326

47

21

Line150054

V

V-216G-104-A-326

48

22

Line150054

W

V-216G-104-A-327

49

23

Line150054

X

V-216G-104-A-327

50

24

Line150054

Y

V-216G-104-A-327

51

25

Line150054

Z

V-216G-104-A-327

52

26

Line150054

Z1

V-216G-104-A-327

53

C.Line150035（VaporLine）:

23spools

No.

DWG.No.

TagNo

DetailDwgNo

Priority

1

Line150035

A

V-216G-104-A-331

42

2

Line150035

B

V-216G-104-A-331

41

3

Line150035

C

V-216G-104-A-331

40

4

Line150035

D

V-216G-104-A-331

39

5

Line150035

E

V-216G-104-A-331

38

6

Line150035

F

V-216G-104-A-331

37

7

Line150035

G

V-216G-104-A-331

36

9

Line150035

J

V-216G-104-A-332

34

10

Line150035

K

V-216G-104-A-332

33

11

Line150035

L

V-216G-104-A-332

32

12

Line150035

M

V-216G-104-A-334

31

13

Line150035

N

V-216G-104-A-334

30

14

Line150035

P

V-216G-104-A-334

29

16

Line150035

R

V-216G-104-A-335

27

18

Line150035

T

V-216G-104-A-335

25

20

Line150035

V

V-216G-104-A-336

23

21

Line150035

W

V-216G-104-A-339

22

22

Line150035

X

V-216G-104-A-339

21

24

Weathershield

V-216G-104-A-339

D.Line150059（AirLine）:

5spools

No.

DWG.No.

TagNo

DetailDwgNo

Priority

3

Line150059

C

V-216G-104-A-312

89

4

Line150059

D

V-216G-104-A-313

90

E.Duct150047（1stRgFlueGasDuct）:

10spools

No.

DWG.No.

TagNo

DetailDwgNo

Priority

1

DuctPG-150107

A

V-216G-104-A-102A

84

3

DuctPG-150107

C

V-216G-104-A-102A

86

4

DuctPG-150107

D

V-216G-104-A-102A

87

5

DuctPG-150109

V-216G-104-A-102A

78

6

DuctPG-150110

A

V-216G-104-A-103A

79

7

DuctPG-150110

B

V-216G-104-A-103A

80

8

DuctPG-150110

C

V-216G-104-A-103A

81

9

DuctPG-150110

D

V-216G-104-A-104A

82

10

DuctPG-150110

E

V-216G-104-A-104A

83

F.Duct150054（2ndRgFlueGasDuct）:

14spools

No.

DWG.No.

TagNo

DetailDwgNo

Priority

1

DuctPG-150103

A

V-216G-104-A-112A

73

2

DuctPG-150103

B

V-216G-104-A-112A

74

3

DuctPG-150103

C

V-216G-104-A-112A

75

4

DuctPG-150103

D

V-216G-104-A-112A

76

5

DuctPG-150103

E

V-216G-104-A-112A

77

6

DuctPG-150105

V-216G-104-A-112A

64

7

DuctPG-150106

A

V-216G-104-A-113A

65

8

DuctPG-150106

B

V-216G-104-A-113A

66

9

DuctPG-150106

C

V-216G-104-A-114A

67

10

DuctPG-150106

D

V-216G-104-A-114A

68

11

DuctPG-150111

A

V-216G-104-A-115A

69

12

DuctPG-150111

B

V-216G-104-A-115A

70

14

DuctPG-150111

D

V-216G-104-A-115A

72

3.referencedocuments

1.DrawingissuedbyTPCandorfluegaslineandductspecificationofferedbymanufacture

2.VARIATIONREQUESTINITIATEDBYTPC.

4.OrganizationChart

Workingcrewshallmainlybeorganizedbyskilledandexperiencedpersonnelasshownintheorganizationchartasfollow:

SeeAttachment-01

5.CONSTRUCTIONPROCEDURE

5.1.REFORMINGWORKFORFLUEGASLINE&DUCT（STRAIGHTSPOOL）

5.1.1Toolpreparation

A.REFORMINGSTIFFENER

B.REFORMINGGUIDEPIPE

C.JACK

5.1.2TOOLDESIGN

A.REFORMINGSTIFFENER

Material:

SS400asperattachedsketch

Detailsizeareasfollows

Otherdimensionareasfollows

PlateThickness:

δ=16~25mm

PlateHeight:

MIN.150mm

PlateWidth:

600~1000mm

B.ReformingstiffenerPipe

Material:

SGPasperattachedsketch.

PipeSize:

2″~4″

Pipelength:

dependontheductdiameter

ConnectionLugPlate:

δ=16~25mm

Connectionbaseplate:

δ=16~25mm

C.JACK

Hydraulicjack:

16T

Screwjack:

16T

Sketchasfollows:

5.1.3TOOLSETTING

DirectionofreformingjigshallbesettheshortDiameterasperattachedsketch.

ReformingstiffenershallbesettoinsideofductcasingplatewithTackwelding.

TackweldingshallbeappliedonlyCenterofReformingStiffeneraspertheSketch.

WeldingLengthshallbekeptaround50mm.

5.1.4Reformingworkforfluegaslineandduct

Beforerepairingwork,theductspool’sroundnessshouldbecheckedwithTPC’ssiteengineers,andrecordingthespoolroundnessdatum.

BeforesettingofReformingtoolstoinsideofduct,trueringofductshouldbecutted,weldingjointsbetweenductbodyandtureringshouldbegrinded.

AftersettingofReformingtoolstoinsideofduct,jackshouldbeusedforextendeddirectionaspersketch.

Finally,GapbetweenDuctcasingandReformingStiffenerwillbedisappeared.

OutsideofReformingstiffenerwillbetouchtotheDuctinsidesurfacewhenbothendsofreformingstiffenershallbeweldedtotheductcasing.

AlsoLongdiametersideshallbeweldedwithotherReformingstiffenerafterreformedworks.

4-ReformingstiffenersweldedtotheinsideofductwhenReformingguidepipeandjackshallberemovedfromduct,areinsteadedofsupportpipes.

Finally,checktheroundnessofthespoolductwithTPC’ssiteengineers,andrecordthespoolroundnessdatum.

Aftercasingforfluegaslineandduct,removethesupportpipesandstiffenerplates.

5.2.REFORMINGWORKFORFLUEGASLINE&DUCT（ELBOWSPOOL）

5.2.1Toolpreparation

A、Supportplate

B、Wedge

5.2.2TOOLDESIGN

A、Supportplatesizeandshape,pleaseseesketch.δ=16mm

B、Wedgeabout:

300mm*40mm*25mm

5.2.3Reformingmethodasbelowsketch:

5.2.4Reformingworkforelbowspoolforfluegaslineandduct

Beforerepairingwork,theductspool’sroundnessshouldbecheckedwithTPC’ssiteengineers,andrecordingthespoolroundnessdatum.

BeforesettingofReformingwedgestooutsideofduct,trueringofductshouldbeweldedbetweensupportplateandturering.

AftersettingofReformingwedgestooutsideofduct.thehammershouldbeusedforreducingdirection.

Finally,theelbowspoolwillbecomeround.thentackweldingjointsbetweenwedgeandtruering.aftercasingforfluegaslineandduct,removewedgesbygringdingmachine.

5.3checkandreceive

5.3.1Beforestarttoreforming,allfluegaslineandductspools‘sroundnessshouldbecheckedbyTPC’ssiteengineers,andrecordedbyTCC.Iftheroundnessisoutoftolerance,thespoolsshouldberepaired.

5.3.2Theroundnesstoleranceis±5mm。

NOTE：

IFTHESPOOLCIRCLEGIRTHISOUTOFTOLERANCE，ITISSUGGESTEDTHATTPCTOREFUSETORECEIVETHESPOOL，BECAUSEITISDIFFICULTTOREFORMINGASPERALLOWTOLERANCEBYTCC。

5.3.3Whenthespoolswhichneedtoreforminginthewater,thespoolsshallbeliftoutofthewaterbycrane.

5.3.4Whenthespoolswhichthearrangementplaceisnotsuitforreformingshallberot