化工厂工艺管道施工方案.docVIP

目 录 工程概况····························································2 编制依据·····························································2 施工应具备的条件及施工准备·············································2 管道安装质量控制流程图················································2 管道组成件及管道支承件的检验···········································3 阀门的检验···························································3 其它管道组成件的检验··················································4 管道预制 ····························································5 焊接 ······························································5 管道安装 ···························································9 管道压力试验······················································10 管道吹扫 ·························································11 防腐施工 ························································11 人力机具投入计划···················································12 质量、安全保证体系及措施············································14 概述 本方案使用于宁波巨化化工科技有限公司宁波巨化200Kt/a消耗臭氧层物质（ODS）替代品原料扩建项目（二期）项目工艺管道安装工程，本项目工艺管道分外管和装置区（氯化单元、吸收单元、回收单元，冷冻站）两部分，管道材质主要是20#、304、20+PE、16Mn、316等。 编制依据 《工业金属管道施工及验收规范》GB50235-97 《现场设备、工业管道焊接工程施工及验收规范》GB50236-98 《石油化工剧毒、可燃介质管道施工及验收规范》SH3501-2002 《石油化工设备及管道涂料防腐蚀技术规范》SH3022-2002 施工应具备的条件及施工准备 施工应具备的条件： 施工图纸、安装规范、标准等资料齐全。 到货的配管材料满足施工要求，施工所需机具、工具、仪器及消耗材料等配备齐全。 与管道有关的土建工程已经检验合格，满足安装要求，并已办理交接手续。 与管道连接的机械找正合格，固定完毕。 针对本工程编制的焊接工艺规程已经审定，焊接人员特殊工种已报验。 施工准备 技术人员、检验人员及施工人员应认真熟悉图纸和有关规范、标准、设计要求。 绘制管道轴册图报监理审核合格。 技术人员应向参加施工的有关人员进行技术交底。 对管道组成件及管道支承件进行检验，质量证明书必须齐全。 为了保证管道安装的质量，加快施工进度，提高组对、焊接、加工的精度，管道的加工、预制在管道预制厂进行。 管道安装流程图 图纸审查、设计交底 技术方案、措施编制 工艺设计 焊接工艺评定 原材料、管阀配件检查、复验 管段预制件、组成件交验 法兰与管螺纹、紧固件清理 预制管段清理 密封面、密封垫粗糙度检查 支架清理 管道连接件油脂保护 支架安装 管道组成件安装 管道试压、吹洗 组装口、安装口施焊接 管道油漆、保温 焊缝探伤 不锈钢管道焊缝酸洗