氯乙烯合成混合气脱水石墨冷凝器的泄漏治理  

Leakage Control for Graphite Condenser of Dehydrated Vinyl Chloride Gas Mixture

作　　者：夏汝焱[1] 王凌[1] 

机构地区：[1]浙江巨化股份有限公司电化厂,浙江衢州324004

出　　处：《化工生产与技术》2010年第2期55-56,58,共3页Chemical Production and Technology

摘　　要：分析了电石法聚氯乙烯生产中,乙炔和氯化氢混合气体脱水用浮头列管式石墨冷凝器频繁泄漏的原因,一是频繁停车破坏了石墨列管中的冰层厚度与气相物料之间的动态平衡,导致列管冻裂;二是气相出口短节过短导致部分石墨列管在伸缩时受力较大而破裂。提出了预防和改进措施,尽量避免无计划停车,新增DCS监测和视频监控、安装盐水放净管道、气相出口短节更换为软连接、改人工为自动控制放凝酸。实施后,取得较好效果。The usage condition of shell and tube floating head graphite condenser used for vinyl chloride gas mixture dehydrating during the production of calcium carbide method-PVC is introduced.Mixed dehydration process is briefly summarized.The basic parameters of the used condenser is described.The cause of frequently leaks on graphite tube on the condition of frequently condenser start-stop is analyzed and corresponding prevention and improvement measures for controlling leakage is put forward.Good results after its implementation are achieved.

关 键 词：氯乙烯 石墨冷凝器 泄漏 预防 改进 

分 类 号：TQ222.423[化学工程—有机化工]