大型空分装置冷箱内铝合金焊接施工技术
Application of Aluminum Alloy Welding Technique in Cold Box of Large Air Separation Equipment
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- DOI:
- 作者:
- 罗红发
LUO Hong-fa
- 作者单位:
- 中国石化集团第二建设公司, 江苏南京 210046
SINOPEC No.2 Construction Co., Nanjing 210046
- 关键词:
- 空分装置冷箱;铝合金焊接;施工技术
cold box of air separation equipment;aluminum alloy welding;construction technology
- 摘要:
- 铝合金材料是空分装置冷箱中的主要材料,铝制设备和铝合金管道的现场焊接是空分装置冷箱施工的重点和难点,而空分冷箱的密闭和-196℃的操作温度决定了冷箱内所有连接头必须采用焊接方式,焊接接头的质量直接关系到装置的稳定运行。文章通过介绍安庆石化48000m3/h空分装置中冷箱内铝制分馏塔的现场组对和铝镁管道焊接过程的施工控制经验,重点分析大型冷箱内铝合金焊接特点和容易产生的缺陷,从而确定铝制设备与铝合金管道焊接工艺以及空分装置大型冷箱的施工要点。
Aluminum alloy is a main kind of material used in the cold box of air separation equipment. The field welding of aluminum-made equipment and aluminum alloy pipeline is critical and difficult in the cold box construction. The cold box working in a hermetic condition and at a temperature of -196℃ requires that all joints must be welded, and the welding quality relates directly to the working stability of the equipment. Based on the construction control experience of field assembly of an aluminum-made fractionating tower and welding of aluminum and magnesium alloy pipeline in the cold box of 48 000 m3/h air separation equipment at Anqing Petrochemical Co., this paper analyses the characteristics of aluminum alloy welding in a large cold box and the defects often occurred during the welding, than makes certain the welding process of aluminum made equipment and aluminum alloy pipeline as well as key points of large cold box construction.2008,5(5): 52-56 收稿日期：2007-12-27分类号：TG44;TE973作者简介：罗红发(1968-),男,湖北人,1991年毕业于上海石油化工学校,本科,工程师,现任中国石化集团第二建设公司福建炼油乙烯一体化工程项目副经理,长期从事工程施工技术管理工作.参考文献：
[1]中华人民共和国化学工业部.现场设备工业管道焊接工程施工及验收规p[S].北京:中国计划出版社,1999.
[2]柳金海,陈百海.金属管道焊接工艺便携手册[M].北京:机械出版社.2005.