论文部分内容阅读
年产52万吨尿素装置C0_2汽提塔是尿索高压设备的核心。本文介绍按国际先进标准施工的C0_2汽提塔六个关键焊接工艺。这六个关键是:球封头内壁及管板的带极埋弧堆焊;C0_2汽提管与管板的手工氩弧焊;衬里及内件的焊接;手工堆焊圆孤过渡区;20MnMoδ145深环缝焊接;Ω膨胀节的焊接。
Annual output of 520,000 tons of urea plant C0_2 stripper is the core of urinary cable high pressure equipment. This article introduces six key welding technologies of C0_2 stripping tower constructed according to international advanced standards. The six key are: ball seal head wall and tube plate with submerged arc welding; C0_2 stripping pipe and tube plate manual TIG welding; lining and inner parts of the welding; manual surfacing round solitary transition zone; 20MnMoδ145 Deep-ring seam welding; Ω expansion joint welding.