Recently, Jiangsu Shuangliang New Energy Equipment Co., Ltd. completed the pre-assembly of the first heat combined feed heat exchanger produced by Zhejiang Satellite Petrochemical's 450,000 tons/year propane dehydrogenation project. The heat exchanger diameter of 2.7 meters, is a typical large-scale deep hole welding high temperature heat exchanger, a single heat exchange tube length of 21 meters, a total length of 29 meters, weighs 200 tons, the main material S30409 stainless steel, heat exchange tube and tube sheet connection For deep hole welding. Deep-hole welding adopts sophisticated imported equipment. After repeated tests and demonstrations, the technicians determine the precise welding parameters, strictly control the welding seam formation, and conduct radical helium leak detection to ensure the welding quality. High Purity Oxygen Generator,High Pressure Oxygen Generator,High Effective Customized Oxygen Generator,95% Purity Oxygen Generator Jiangsu Minnuo Group Co.,Ltd , https://www.mingngroupcn.com