氯碱装置中降膜蒸发器技术研究与工程应用

发布时间：2018-03-19 06:33

本文选题：氯碱工业　切入点：三效降膜蒸发器　出处：《华东理工大学》2015年硕士论文　论文类型：学位论文

【摘要】：文章介绍了氯碱装置中进口两效逆流降膜蒸发器的结构和蒸发浓缩工艺情况,分析了装置在生产运行过程中出现的一些问题,提出了对原进口两效逆流降膜蒸发器的改进方案。1、根据装置实际运行情况,从节能环保、提高产能、降低成本的角度,在进口两效逆流降膜蒸发器的基础上,增加国产一效蒸发器。2、介绍和分析改进后的三效逆流降膜蒸发器的结构特点、工艺流程、工艺要求、运行状况等,并比较了其与进口两效逆流降膜蒸发器的异同点。3、进行了相关的物料衡算、热量衡算和传热面积的计算,从而验证了改进后蒸发器的合理性、可行性和优越性。本文通过理论分析和实验验证,得出增加国产一效之后的三效逆流降膜蒸发器的相关参数结果和一系列结论,证明了改进后蒸发器投入生产应用确实可以带来更大的经济效益,从而使以国代进的氯碱工程得到保障,对推动我国氯碱工业的发展具有重要意义。
[Abstract]:This paper introduces the structure of the imported two-effect countercurrent falling film evaporator in the chlor-alkali plant and the process of evaporation and concentration, and analyzes some problems in the process of production and operation of the unit. The improvement scheme of the original two-effect countercurrent falling film evaporator is put forward. According to the actual operation situation of the unit, from the point of view of saving energy, environmental protection, increasing production capacity and reducing cost, and on the basis of imported two-effect countercurrent falling film evaporator, To introduce and analyze the structure characteristics, technological process, technological requirements, operation status of the improved three-effect countercurrent falling film evaporator, with the addition of domestic one-effect evaporator .2. The difference and difference between the two effect countercurrent falling film evaporator and imported evaporator are compared, and the calculation of material balance, heat balance and heat transfer area is carried out, which verifies the rationality of the improved evaporator. Feasibility and superiority. Through theoretical analysis and experimental verification, the related parameters and a series of conclusions of the three-effect countercurrent falling film evaporator after increasing the domestic first effect are obtained. It is proved that the application of the improved evaporator into production can bring more economic benefits, thus the chlor-alkali engineering in China can be guaranteed, and it is of great significance to promote the development of the chlor-alkali industry in China.
【学位授予单位】：华东理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TQ114

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