全焊接板式换热器在煤制乙二醇装置中的应用  

Application of Fully Welded Plate Heat Exchanger in Plant of Ethylene Glycol Made from Coal

作　　者：钱泰磊[1] 郑伟业[1] 迟浩淼[1] 叶晶[1] 陈宁衡 

机构地区：[1]中国船舶重工集团公司第七一一研究所能源装备事业部,上海201108

出　　处：《化工设备与管道》2016年第2期16-19,共4页Process Equipment & Piping

基　　金：国家重点基础研究发展计划(973计划)资助项目(2013CB228304)

摘　　要：国内煤制乙二醇装置中工艺介质对铁离子含量有严格要求,且多具有腐蚀性,要求换热器与工艺介质接触的部分使用不锈钢材质,使得换热器的一次性投资成本过高。某公司200 kt/a煤制乙二醇装置采用可拆全焊接板式换热器及板壳式换热器作为换热设备用于装置中,运行状况良好,设备一次性投资、设备重量、占地面积、运行维护费用以及装置停车时间等都大为降低。In the equipment of ethylene glycol made from coal, the iron ion existed in process medium should be strictly limited. Because this ion has corrosion performance, the parts in touch with the medium in heat exchanger are often constructed with stainless steel, which makes investment with high cost. In one 200 000 t/a coal made ethylene glycol plant, fully welded plate heat exchanger and plate-shell heat exchanger were used, which not only has good performance, but also greatly decreases the cost of equipment investment, the weight of equipment, field occupation, cost of maintenance and equipment shut-off time.

关 键 词：板式换热器 全焊接 板壳式换热器 煤制乙二醇装置 腐蚀 

分 类 号：TQ051.5[化学工程] TH122[机械工程—机械设计及理论]