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华 中 科 技 大 学 硕 士 学 位 论 文
PAGE I
摘 要
本文综述和分析了管式连续微滤膜的应用现状、热电厂循环冷却排污水的处理概况和管式连续微滤膜在热电厂循环冷却排污水回用处理领域的应用情况,简要介绍了保定热电厂万吨级微滤膜法处理回用循环冷却排污水的项目以及该项目在运行过程中存在的膜管堵塞问题。在对管式连续微滤膜的污染问题进行了比较深入的研究和分析的基础上,构建了管式连续微滤膜用于澄清过滤(全量过滤方式)的过滤模型并运用于实际运行,为管式连续微滤膜在澄清过滤领域过滤性能优化提供了理论依据和工程借鉴。
论文对管式微滤膜过滤过程中的总阻力进行了细化和分类,对管式连续微滤膜澄清过滤(全量过滤方式)过程中的污染颗粒进行受力分析,然后应用流体力学和微滤渗透理论构建了管式连续微滤膜澄清过滤的数学模型,运用数值分析知识对模型进行了形式变换和性能优化,并找到模型中参数的求解方法,运用Matlab优化工具箱函数和实验数据成功求解出各微滤机组的模型参数,并成功地将该模型运用于指导微滤机组运行参数的优化,运行数据得到了很高的拟合精度和良好的拟合效果。
关键词:管式连续微滤膜,循环冷却排污水,污染机理,过滤模型,优化和模拟
Abstract
In this paper, it made a brief synthesis and analysis of the application of tubular continuous micro-filtration membrane (TCMFM), the introduction of the circulating cooling sewage water (CCSW) treatment of thermal power plant and overview and application of the TCMFM in the field of CCSW in thermal power plant, and then briefly introduced the project of TCMFM treating and reuse 10,000-ton scale for CCSW in Baoding thermal power plant, as the problems of block up of TCMFM in the operation of the project, this paper is based on the TCMFM pollution problems were more in-depth experimental and analysis, then established a model of TCMFM using for defecate filtration, it provides a theoretical basis for optimization of TCMFM in defecate filtration.
This paper detailed analyzed the mechanism of pollution on TCMFM filtrate CCSW, and filters in the process of the resistance to the details and classifications, on the defecate filtration of TCMFM (dead-end filtration) in the force balance analysis of pollution particles, then using the theory of hydrodynamics and Micro-filtration infiltration, established a mathematical model of the TCMFM to defecate filtration, using knowledge of numerical analysis to the establishment of the model is to change the form and performance optimization, and parameters in the model to find the solution, optimize the use of Matlab toolbox functions and the experimental data for the success of the model parameters micro-filtration
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