地下管道防腐施工方案DocumentNo.:文件编号：CNI23-CM-016Fabrication编制：Examineandverify审核：Approval批准：Contents目录Projectoverview工程概况.........................................................1-3Fabricationreference编制依据.........................................................3-3Constructionprinciple三、施工原则.........................................................3-33PEanticorrosiveproductionprocess四、3PE防腐生产工艺流程..............................................4-93PEanticorrosivespecificproductionsteps3PE防腐具体制作步骤.............................................9-13Heatshrinkabletapeanticorrosiveconcretesteps六、热收缩带防腐具体步骤............................................14-15Safetyattentions七、安全注意事项....................................................16-16ProjectOverview一、工程概况ThisprojectisLindeHuayi(Chongqing)GasesCo.,Ltd1BillionNm3/yearSyngasCO/H2project,locatedinChongqing(Changshou)ChemicalIndustryPark,andthemainworkcontainssubstation、compressionunit、powerabsorptionunit、washingunit、rawgascompressorunit、Hightemperatureshiftunitetc..本项目为林德化医（重庆）气体有限公司10亿Nm3/年合成气制备CO/H2项目，位于重庆（长寿）化工园区内，其中主体工作包括变电所、压缩单元、变电吸附单元、洗涤单元、原料气压缩单元、高温变换单元等。Undergroundpipelinecontainscirculatingwatersystem,watersystem,watersupplyanddrainagesystem,atotalofabout1744mweldingpipeextension,Dia-intotalof10070inch,buriedsteelpipeanticorrosionmethods3PEcoating,toensurethattheundergroundpipelineanticorrosionconstructionsafety,highquality,efficientcompletionoftheproject,especiallythepreparationofthisplan.地下管道包括循环水系统、工业水系统、给排水系统，管道共计延长米约1744m，焊接Dia-in共计10070寸，埋地钢管防腐方法采用3PE涂层防腐，为保证地下管道防腐施工安全、优质、高效完成，特编制本方案。Fabricationreference二、编制依据Linderelateddrawingandtechnicalstandard林德相关图纸、技术标准Polyethylenecoatingforburiedsteelpipeline埋地钢制管道聚乙烯防腐层........................................(GB/T23257-2009)Watersupplyanddrainagepipelineengineeringconstructionandacceptance《给排水管道工程施工及验收规范》...................................（GB50268-97）Petroleumandchemicalequipmentandpipelinetechnicalspecificationforthecoatinganticorrosion《石油化工设备和管道