Spherical Tanks Erection Procedure

]ONTROLLED DOCUMENT

:HECKED

:ORINFORMATION .ORFASRICATION :ORERICTION

:ORPURCHASING :ORUSE qSBUILD

c.'y' Yl. L-)r s-{DARYA PALA Eng. Co.

0 REV DATE

FIRSTISSUE

Mohammadi

DESCRIPTION

PREP./DESIGN

Moosavi

H.Vanaki

CHECKED APPROVED

g .figRt N.t.G.C.

OIVNFR:

NATIONALIRANIANGASCOMPANY DOCUMENT No.: PC EC TAG DIS TP SN 037 TK 3710 ME PR 003

HIRBODAN EPCCO.

PROJECT NAME :

ILAM GAS TREATING PLANT SPHERICAL STORAGETANKS

CONTRACTOR :RICTION

DOC. NAME :

ERECTION PROCEDURE SPHERICAL TANKS

]UALN CONTROL

:O[,IMERCIAL

ITEM NO/S TK-3710 A/B/C/D

]LIENT

Y OF AZARAS ND CO (AIC)

VAT.ENG.

AzarAb Ref.No.

ilffi AZARAIJ

I

CUSTOMER JOBNo.

]ETAILENG. r'ESSELTEQUIP,2

ueslcxc ENc.DEPr. AZARAB wousrruxco

DOC.No. File Name: Page Rev. vH-v0434101-tto3 1 r ' PROJECT No.

v043

z/g

0

r'ESSELAEQUIP,l JRO PLANNING

qRCHIVE ]ECIPIENTS

DOC NO.:

AZAR-AB INDUSTRIES II,AI4 SPHERE_

TABLEOF CONTENTS

1

General

2

Foundation

3

Erection

Pagd 2/9

vH-V043-0101-003

AZAR-AB TNDUSTRTES ILAM SPHERE-

DOC NO.:

1- General Thisprocedure appliesto fielderectionworkof 1047m3spherical tanks TK-3710NBICIDat ILAMGASTREATINGPLANT. All fielderectionshallbe performedstrictlyin accordancewiththe drawings approvedby the owner.

2- Foundation Beforeerectionworkof tanks,Foundation shallbe checkedby thetankbuilder in accordance withfieldin specificmanual.lf thereweresomeobstracles on tankerection, suchfoundation shouldbe repairedby foundation constructor.

3- Erection 3.1-Theerectionsequence shallbe as follows: - Lowerpartof columnson thefoundations. - Equatorplateswithuppercolumns. - Intermediate equatorplates. - Bottomcrownplates. - Top crownplates. 3.2-Prior to the erectionof column,the levelof foundation shallbe adjusted to the specifiedlevelwithshimplate.The clearancebetweenfoundation andcolumnbaseshallbe concreted beforethe hvdrostatic test. 3.3-Erection of lowercolumns. Duringerectionof lowercolumn,levelandplumpness shallbe checked. (note:The referencepointshallbe markedbeforeerection,this pointshallbe determined fromtop of column.(FlG. 1) 3.4-Allowable tolerance of plumpness andlevelof eachcolumnsis as following: Plumpness: H/500mm(Plus/Minus) Level : 3 mm(Plus/Minus)

Page'3/9

VH_V043-0101-003

AZAR-AB INDUSTRIES II,AM SPHERE-

DOC NO.:

VII-V043-0101-003

3.5-Erection of equatorplatewithuppercolumn. - Priorto the equatorplateerection,erectiontoolsmustbe installed.And thenstagingshallbe installed on the equatorplates. typicallayoutis shownin FIG.2,butshape,number& locationof erectiontools may be changedif necessary. - Two plateswith uppercolumn(MarkedA) shallbe erected. - The intermediateplatewithoutuppercolumn(MarkedB) shallbe erected. - Followthe sameprocedurefor the remainingequalorplates. - Aftererectionof the eouatorolatesinsidediameter"D"shallbe checked. the out of roundness shallnotexceed1%of the nominaldiametershown in drawing(FlG.3). 3.6-Erectionof bottomandtop crownplates. - Eachbottomandtop crownsconsistof sevenplates. - the adjacentplates(markedC) shallbe assembled plates. priorto 3 remaining - the plates(markedD) shallbe assembled priorto erectionof centerplate.

Page'4/9

AZAR-AB

DOCNO. : Vrr-V043-0101-003

XNDUSIRXES

F I G ,1

Paqe 5/9

AZAR-AB IIIDUSTRIES rr.Al,t SPHERE-

DoC NO.: ---!--------

VH-V043-0101-003

AZAR-AB IIIDUSTRIES rLAId SPEERE-

DOC NO.:

FIG, 3 Pag€ 7/9

vH-V043-0101-003

AZAR-AB INDUSIRIES IIAM SPIIERE-

DOC NO.:

FIG.4

Page 8/9

VA-V043-0101-003

Doc No':

AZAR-AB rNDusrRrEs II,AM SPHERE-

-t-

-FIG'5, Pasa 9/9

vH-V043-0101-003