11苯胺蒸馏塔T2740修改方案SY.doc

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苯胺蒸馏塔（T2740）修改方案

MethodStatementofAnilineDistillationTower（T2740）Modification

1、概述General

巴斯夫聚氨酯（重庆）有限公司年产40万吨二苯基甲烷二异氰酸脂（MDI）项目苯胺蒸馏塔T2740，由于设备制造图与土建施工图不相符，导致设备就位方位错位。现TMDI委托CC7现场修改，将设备裙座割断，将设备上部旋转11.25°后，再与设备下部重新焊接。此方案仅适用于苯胺蒸馏塔T2740的修改。

ForanilinedistillationtowerT2740inthisprojectofBASFPolyurethanes(Chongqing)CompanyLtdwithanannualcapacityof400,000metrictonsofMidasequipmentfabricationdrawingisnotmatchwithcivilconstructiondrawing,whichcausedmismatchindirectionofpositioning.hereTMDIauthorizeCC7toperformmodificationonsite,tocutofftheskirtofequipment,rotatingtheupperpartabout11.25°,thenre-weldwithlowerpart.thismethodstatementisavailableformodificationofanilinedistillationtowerT2740.

设备参数如下表：equipmentparameterasfollowtable:

序号SN

设备位号

EquipmentNo.

焊缝尺寸

WeldSize

焊口数

WeldedJunctionQ’ty

壁厚

ShellThickness

材质

Material

焊接接头形式

WeldJointType

焊接材料

consumable

无损检测NDE

水压试验

hydraulictest

备注

Remark

1

T2740

φ2300mm

1

14mm

Q345R

BW

CHE-507

/

2、编制依据References

2.1巴斯夫项目规范《焊接制作总体要求》GEN-0-TECH-SP-0008

BASFprojectspecificationGeneralrequirementsforweldingfabricationGEN-0-TECH-SP-0008

2.2巴斯夫项目规范《容器制造公差》GEN-0-VESS-SP-0015

BASFprojectspecificationVesselfabricationtoleranceGEN-0-VESS-SP-0015

2.2《现场设备、工业管道焊接工程施工规范》GB50236-2011

CodeforconstructionoffieldequipmentsandindustrialpipeweldingengineeringGB50236-2011

2.3《现场设备、工业管道焊接工程施工质量验收规范》GB50683-2011

CodeforacceptanceofconstructionqualityoffieldequipmentsandindustrialpipeweldingengineeringGB50683-2011

2.4《石油化工静设备安装施工质量验收规范》GB50461-2008

CodeforconstructionqualityinspectionacceptanceofpetrochemicalstaticequipmentinstallationGB50461-2008

2.5《焊接和钎焊评定标准》ASMESec.Ⅸ-2010；

EvaluationcriteriaforweldingandbrazeweldingASMESec.Ⅸ-2010；

2.6《承压设备焊接工艺评定》NB/T47014-2011

PQRforbearingpressureequipmentNB/T47014-2011

2.7厂家提供的技术资料及图纸资料

Technic