毕业设计说明书[蔡]2.doc

毕业设计 课 题 名 称 年产6万PVC精馏工段工艺初步设计 及高沸塔设计 学 生 姓 名 蔡 兰 琼 学 号 0940902059 系、年级专业 生物与化学工程系2009级化学工程与工艺 指 导 教 师 胡 建 明 职 称 讲 师 2013年 5 月 18日 年产6万PVC精馏工段工艺初步设计 及高沸塔设计 蔡 兰 琼 （邵阳学院生物与化学工程系2009级化学工程与工艺专业） 指导老师：胡建明 摘 要 本次毕业设计课题为年产6万吨PVC精馏工段工艺初步设计及高沸塔设计。本次设计主要完成了PVC精馏工段工艺的选择和优化，用A2图纸绘制了带控制点的PVC精馏工段工艺流程图；对PVC精馏工段进行了物料衡算和热量衡算，列出了相应的物料衡算表和热量衡算表；对高沸塔进行了设备结构选型，并作出了详细的工艺及设备设计计算，采用A2图纸绘制了高沸塔设备装配图。 本次设计采用电石乙炔法制取氯乙烯。此法是以电石为原料，电石水解生产乙炔，氯碱生产中产生的氯气和氢气直接合成法合成氯化氢，由乙炔和氯化氢经净化后在转化器中合成粗氯乙烯单体，粗氯乙烯单体经精馏后得到精氯乙烯单体，精氯乙烯单体经悬浮聚合得到PVC。 关键词：PVC合成；粗氯乙烯精馏；物料衡算；热量衡算；设备选型 The Design of Annual Production Capacity of 60，000 Tons of PVC distillation processand high-boiling tower design Cailanqiong (2009 Chemical Engineering and Technology,Department of Biology and Engineering ,Shaoyang University) Tutor: Hu Jin Ming Summary The topic for the annual graduation PVC distillation process 60 thousand tons Preliminary Design and high-boiling tower design. The system is mainly completed a dilute nitric acid industrial production methods of selection and optimization, with the A1 drawings of the control points with PVC distillation process technology; all construction section of PVC distillation process carried out mass balance and heat balance, listing the corresponding. The mass balance sheet and heat balance sheet; major equipment construction section of the oxidation of the high-boiling tower of the equipment structure, selection, and made a detailed process and equipment design calculations, using A1 drawings of the high-boiling tower equipment assembly drawings. The design of this use of calcium carbide acetylene perchlorethylene. This method is based on calcium carbide as raw materials, the production of calcium carbide hydrolysis acetylene, chlor-alkali production of chlorine and hydrogen produced by the direct synthe