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2013年5月上旬,江苏双良新能源装备有限公司为浙江卫星石化45万t/a丙烷脱氢项目制作的首台热联合进料换热器预组装完毕。该换热器直径2.7 m,为典型的超大型深孔焊高温换热器,单根换热管长21 m,总长29 m,总质量200 t,主材S30409不锈钢,换热管与管板连接为深孔焊接。深孔焊采用精良的进口设备,技术人员经反复试验、论证,确定精确的焊接参数,严控焊缝成型,并逐根进行氦气检漏,确保焊接质量。
In early May 2013, Jiangsu Shuangliang New Energy Equipment Co., Ltd. pre-assembled the first hot-combined feed heat exchanger manufactured by Zhejiang Satellite Petrochemical 450,000 t / a Propane Dehydrogenation Project. The diameter of the heat exchanger is 2.7 m. It is a typical super large deep hole welded high temperature heat exchanger. The length of a single heat transfer tube is 21 m, the total length is 29 m, the total mass is 200t. The main material S30409 stainless steel, heat exchange tube and tube plate Connection for deep hole welding. Deep hole welding using sophisticated imported equipment, technical personnel after repeated testing, demonstration, to determine the precise welding parameters, strict control of weld formation, and helium gas leak by root to ensure the welding quality.