20G焊接方.docVIP

20G材质锅炉压力管道焊接方案 WELDING PROCEDURE FOR 20G MATERIAL OF BOILER PRESSURE PART 编制目的 Purpose 本工程锅炉为济南锅炉厂制造，安装于印度尼西亚南加里曼丹省。 The boiler in this project is manufactured by JINAN Boiler group co.ltd, and installed in Province of South Kalimantan, Indonesia. 在本项目，焊接材料为中国ATLANTIC制造供货、焊接设备为ZX7-400逆变氩弧焊机、电源采用柴油发电机、焊工使用印度尼西亚当地人员，焊接标准采用ASME标准。 为了保证施工质量，统一施工工艺，特制定此施工程序。 In this project, the welding material is manufactured by ATLANTIC CHINA, the welding equipment ZX-700 inverter arc welding machine. The power is supplied by diesel generator, and welders are local. ASME standardization is applied to all welding work. 编制依据 Basis 已经取得当地政府认可及PLN现场管理部的同意的WPS(PQR)施工工艺卡。 WPS (PQR) which is approved by local government or PLN site management. NWPCI上报的《检查试验的工作指导》（WI for Inspection and Test Procedure）No. NW-ITP-QM-0003 WI for Inspection and Test Procedure (No. NW-ITP-QM-0003) submitted by NWPCI 济南锅炉厂图纸资料及设备使用说明书 Drawings and document form JINAN Boiler Group Co.ltd. 适用范围 Scope #3锅炉及#4锅炉受热面部分，见下表 The following table shows boiler pressure part of #3 #4 boiler 序号 No 名称 Item 规格 Spec. 焊接方式 Welding method 1 水冷部分 Water wall 1.1 水冷壁管子 Water wall tube φ60*5 全氩弧焊 Argon arc welding 1.2 下降管 Downcomer φ377*25 氩弧焊打底、电焊盖面，需要热处理 Argon arc welding as base, electrical welding as cover, PWHT needed 1.3 分散下降管 Distributed downcomer φ133*10 氩弧焊打底、电焊盖面 Argon arc welding as base, electrical welding as cover 1.4 水冷引出管 Water guiding tube φ133*10 氩弧焊打底、电焊盖面 Argon arc welding as base, electrical welding as cover 2 过热器部分 Superheater 2.1 炉顶及后包覆 Boiler top rear steam Cooled Wall φ38*4 全氩弧焊 Argon arc welding 2.2 侧包覆 Side steam cooled wall φ42*4.5 全氩弧焊 Argon arc welding 2.3 低温过热器 Cold superheater φ38*4 全氩弧焊 Argon arc welding 2.4 连接管系 Connection piping work φ133*10 氩弧焊打底、电焊盖面 Argon arc welding as base, electrical welding as cover 2.5 连接管系 Connection piping work φ133*12 氩弧焊打底、电焊盖面 Argon arc welding as base, electrical welding as cover 2.6 连接管系 Connection piping work φ28*4 全氩弧焊 Argon arc weld