【作者】 杨涛；

【导师】 王晓静； 王之顺；

【作者基本信息】 天津大学 ， 化学工程， 2020， 硕士

【摘要】 含油污水的排放不仅会影响水中的溶解氧,还将在水表面形成一层油膜,阻碍空气与水之间的物质交换,导致水中缺氧,严重威胁水生生物的生命并破坏生态平衡在水环境中,这些情况最终将反映在周围环境中影响整个生态环境。双维弦波聚结板是本课题组设计开发的一种新型聚结板结构,本文使用Soildworks软件对双维弦波聚结分离器进行三维建模,通过workbench平台中mesh软件对三维模型进行网格划分,使用Fulent对不同聚结板结构的相分离过程进行模拟,考虑了聚结板的亲疏水特性以及双维弦波聚结板的结构尺寸波幅A、周期T、间距H、板长L、板面性质K值对分离效率的影响。采用Box-Behnken组合试验对双维弦波聚结板进行了响应面分析,选取聚结板的板长L、板间距H、波幅A、周期T、板面性质K共5个结构参数,在单因素分析的基础之上对其进行5因素3水平响应面分析,拟合得出了分离效率的二次多项式回归方程,并且求解出当L=809mm,H=20,A=15,T=125mm,K=0.109,分离效率的理论最大值为0.9484。推导出双维弦波聚结板分离器的处理量Q的公式,通过计算得出本文中分离器的处理量Q为1.7m^3/h,为改型装备技术的进一步应用推广提供了设计计算依据。更多还原

【Abstract】 The discharge of oily sewage will not only affect the dissolved oxygen in the water,but also form an oil film on the surface of the water,hinder the exchange of substances between the air and the water,leading to the lack of oxygen in the water,seriously threatening the life of aquatic organisms and destroying the ecological balance in the water environment In the meantime,these situations will eventually be reflected in the surrounding environment and affect the entire ecological environment.The two-dimensional sine wave coalescing plate is a new type of coalescing plate structure designed and developed by this research group.This article uses Soildworks software to carry out three-dimensional modeling of the two-dimensional sine wave coalescence separator,and the three-dimensional model through the mesh software in the workbench platform.Mesh division,using Fulent to simulate the phase separation process of different coalescence plate structures,considering the hydrophilic and hydrophobic characteristics of the coalescence plate and the structural dimensions of the two-dimensional sine wave coalescence plate Amplitude A,period T,spacing H,plate length L.The effect of the surface property K value on the separation efficiency.The Box-Behnken combined test was used to analyze the response surface of the two-dimensional sine wave coalescing plate.The five structural parameters of the plate length L,plate spacing H,amplitude A,period T,and plate surface property K were selected.Based on the single factor analysis,a 5-factor 3-level response surface analysis was carried out,and the quadratic polynomial regression equation of separation efficiency was obtained by fitting,and the solution was found when L=809mm,H=20,A=15,T=125mm,K=0.109,the theoretical maximum value of separation efficiency is 0.9484.The formula of the processing capacity Q of the two-dimensional sine wave coalescence plate separator is derived,and the processing capacity Q of the separator in this paper is calculated to be 1.7m~3/h,which provides a design calculation basis for the further application and promotion of the modified equipment technology.更多还原