海洋工程浮式生产储油平台锚桩焊接工艺及建造技术研究  

Research on Welding Technology and Construction Technology of FPSO Anchor Pile in Offshore Engineering

作　　者：姜立群[1] 赵立君 李志强[1] 李光辉 JIANG Liqun;ZHAO Lijun;LI Zhiqiang;LI Guanghui(Offshore Oil Engineering(Qingdao)Co.,Ltd.,Qingdao 266520,Shandong,China)

机构地区：[1]海洋石油工程(青岛)有限公司,山东青岛266520

出　　处：《焊管》2021年第4期17-21,共5页Welded Pipe and Tube

摘　　要：为了使海洋平台关键系泊锚桩能在交变应力的复杂深海环境下保证储油平台有稳定的系泊效果,以铸钢材料作为研究基础,对比了德标和美标铸件材料的性能,提出了铸造工艺优化控制方案,并进一步研究了铸钢件与热轧件的焊接工艺及质量控制方法。指出,在焊接实施中,应保证焊前预热温度,严格控制焊接参数和层间温度,同时保证焊后热处理实施效果,减少铸钢件焊接裂纹的形成,提升焊接质量。在以铸钢吊耳为特色的大管径锚桩预制建造工程实践中,应用了锚桩铸钢件焊接工艺,全部锚桩焊接均合格并达到标准要求。In order to ensure the stable mooring effect of offshore platform key mooring anchor piles under the complex deep sea environment of alternating stress,the performance of German standard and American Standard casting materials was compared based on cast steel materials,the casting process optimization control scheme was proposed,and the welding process and quality control method of steel castings and hot rolled parts were further studied.It is pointed out that the preheating temperature before welding and the welding parameters and interlayer temperature should be strictly controlled in the welding implementation.Meanwhile,it can ensure the effect of post weld heat treatment,reduce the formation of welding cracks and improve the welding quality.In the practice of prefabrication of large diameter anchor pile with cast steel lifting lug,the welding process of anchor pile steel castings is applied,and all anchor piles are qualified and meet the standard requirements.

关 键 词：浮式生产储油平台 锚桩 铸钢件 焊接 质量控制 

分 类 号：TG441[金属学及工艺—焊接]