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我厂高压聚乙烯装置是由3条年产30万t高压聚乙烯的生产线组成。其中,E-14(C,D,E3台)(以下简称E-14)超高压换热器是该装置中的关键设备。换热器的作用是将二次压缩机二段出口的最高工作压力为216MPa的超高压乙烯气体冷却后送往反应器的。该换热器的工作条件相当恶劣,其内管是由低合金高强钢(材质为AISI4340H)经热轧冷拔而成的超高压管构成,承受216MPa的
Our plant is a high-pressure polyethylene plant with an annual output of 300,000 t high-pressure polyethylene production line. Among them, E-14 (C, D, E3) (hereinafter referred to as E-14) EHV heat exchanger is the key equipment in the device. The role of the heat exchanger is the second compressor outlet of the highest working pressure of 216MPa ultra-high pressure ethylene gas cooled reactor sent to the reactor. The heat exchanger working conditions rather harsh, the inner tube is made of low alloy high strength steel (made of AISI4340H) by hot-rolled cold drawn ultra-high pressure pipe composition, to withstand 216MPa