| In this paper, and the state of Zhejiang Chemical Co., Ltd. design and manufacture of two 800,000 t / a hydrogenation unit in the hydrogenation heat exchanger, Research the performance of 2.25Cr1Mo steel welding, heat treatment performance and material properties, Developed in order to obtain the best base metal and weld mechanical properties of the heat treatment process parameters, Mastered the material weldability, Determined the optimal welding parameters and welding consumables. The results of these Research, Application materials for the hydrogenation of the kind of heat exchanger has laid a solid foundation in theory and practice. While for the ? ring heat exchanger fabrication difficulties Hydrogenation, Research Manufacturing Technology of the corresponding, Include all parts of the manufacturing process and manufacturing results, Solve the problems in the manufacturing process, Formulate a comprehensive ? ring hydrogenation heat exchanger manufacturing method, and complete manufacturing. Through the development of this project, Will greatly enhance our ability to manufacture hydrogen exchanger, Saving equipment investment, Alleviate the situation of raw material procurement difficulties, Better meet the needs of the petrochemical industry.
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