MVR工业废水处理设备升膜蒸发器研究

发布时间：2018-07-06 20:50

本文选题：MVR升膜蒸发器 + TA2　；参考：《西安建筑科技大学》2015年硕士论文

【摘要】：MVR(蒸汽机械再压缩技术)从2007年起开始从北美和欧洲进入中国市场,主要应用在工业废水处理、食品深加工、奶制品行业和饮料等行业。目前,国内MVR工业废水处理设备供应商的规模普遍较小,高端水处理技术、化学品和设备的研发实力偏弱,在核心水处理设备研制方面与国外专业水处理设备研制厂家存在较大差距,其主要设备依然以进口为主。本课题以国外某公司一套MVR(蒸汽机械再压缩技术)污水处理设备为基础,参照ASME制造规范,结合我国国情,按照GB150.1-GB150.4-2011《压力容器》及TSG R0004-2009《固定式压力容器安全技术监察规程》制造规范,对其中的升膜蒸发部分进行了设计与改造。随着我国压力容器用材制造标准的逐年完善及国产材料性能的逐年提高,国产材料完全可以达到甚至超过国外对应牌号材料的性能指标。本课题在文献研究的基础上,对国产厚度为6mm的TA2板材和厚度为12mm的TA10板材以及规格为φ38.1x1.2的TA10换热管的化学成分、力学性能进行了试验,证明设备改造所选材料的化学成分、力学性能达到或超过国家标准和ASTM规范要求值,同时也确认厚度为6mm的Q345R热轧板及厚度为40mm的Q345R正火板的各项性能指标均超过国家标准和ASTM规范要求值。本课题在对国产材料性能检测试验的基础上,通过NX8.0软件实体建模及Fluent软件模拟分析,对比了鸭嘴管型蒸发罐和伸入管型蒸发罐的工作情况。选用规则设计规范,按弹性失效设计准则中的最大拉应力设计准则对MVR升膜蒸发器换热器完成内压容器强度计算,按稳定失效设计准则对MVR升膜蒸发器换蒸发罐完成外压容器稳定性校核,根据校核结果确定设备国产化制造的基本参数及技术特性。本课题依据规则设计所定的设备基本参数及技术特性及所选材料的实际性能对MVR升膜蒸发器换热器及MVR升膜蒸发器蒸发罐进行了国产化设计、优化、制造和验收。本课题的研究,对打破工业废水处理先进设备的研制技术为大型跨国水处理公司所垄断的局面做了有益尝试,同时也为我国该类设备的研发、制造奠定了一些基础。
[Abstract]:MVR (steam machinery recompression technology) has been entering the Chinese market from North America and Europe since 2007. It is mainly used in industrial wastewater treatment, food processing, dairy industry and beverage industry. At present, domestic MVR industrial wastewater treatment equipment suppliers are generally small, high-end water treatment technology, chemicals and equipment R & D strength is weak, There is a big gap between the development of core water treatment equipment and that of foreign professional water treatment equipment manufacturers, and its main equipment is still mainly imported. This subject is based on a set of MVR (steam machinery recompression technology) sewage treatment equipment of a foreign company, referring to ASME manufacturing specification, combining with the national conditions of our country. According to the manufacturing specifications of GB150.1-GB150.4-2011 "pressure vessel" and TSG R0004-2009 "Safety Technical Supervision Code for fixed pressure vessels", the evaporation part of the riser film was designed and modified. With the improvement of the manufacturing standard and the improvement of the properties of the domestic materials, the domestic materials can reach or exceed the performance index of the foreign materials. On the basis of literature study, the chemical composition and mechanical properties of TA2 sheet with thickness of 6mm, TA10 plate with thickness of 12mm and TA10 heat transfer pipe with 蠁 38.1x1.2 are tested, and the chemical composition of the material selected for the equipment modification is proved. The mechanical properties of Q345R hot rolled plate with thickness of 6mm and Q345R normalizing plate with thickness of 40mm are above the required values of national standard and ASTM code. On the basis of testing and testing the performance of domestic materials, through NX8.0 software entity modeling and fluent software simulation analysis, the working conditions of duckbill tubular evaporator and inserted tubular evaporator are compared. According to the maximum tensile stress design criterion of the elastic failure design criterion, the internal pressure vessel strength of the heat exchanger of the MVR riser evaporator is calculated according to the regular design code. According to the stability failure design criterion, the external pressure vessel stability check is completed on the MVR riser evaporator, and the basic parameters and technical characteristics of the domestic manufacture of the equipment are determined according to the check results. According to the basic parameters and technical characteristics of the equipment designed according to the rules and the actual performance of the selected materials, the domestic design, optimization, manufacture and acceptance of the heat exchangers and evaporators for the MVR riser evaporators have been carried out. The research of this subject has made a beneficial attempt to break the development technology of advanced industrial wastewater treatment equipment for the monopoly of large transnational water treatment companies, and has also laid some foundation for the R & D and manufacture of this kind of equipment in our country.
【学位授予单位】：西安建筑科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：X76

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