- 學位論文
水旋風分離器模擬與研究
Simulation and research of water cyclone separator
摘要
過濾分離技術在工業上運用相當廣泛，在近代化學、能源及環保工程中也擔任重要的角色，如食品精製、化工產品純化、高純度電子材料製造和生物技術。其中水旋風分離器是在固液分離中最普遍被使用的技術，利用固體和液體的離心力不同達到粒子沉降和分離的分離裝置，可以應用在固-液相分離，或者是將液-液相、氣-液相以及固-液-氣多相分離。過去在水旋風分離器模擬大多都是以CFD來進行探討，學術界很少人利用Aspen plus程式來進行模擬，故本研究以Aspen plus著手。 本研究使用AspenPlus軟體模擬直徑30mm之水旋風分離器，進料使用馬鈴薯澱粉水溶液並詳細描述如何在Aspen plus裡面操作水旋風分離器，進而去分析壓力以及錐角，對其溢流和底流的粒徑分佈與分離效率的影響，並和過去的實驗數據進行模擬分析比較。 模擬結果顯示，Aspen plus在水旋風分離器上模擬的突破，可以用來快速觀察溶液內部粒徑分佈，也可以對應其分離效率的形式進行模擬，比較常運用在水旋風分離器上的CFD模擬還要快速方便。壓力的變化與實驗數據趨勢一致，而在錐角上的影響，錐角越小，分離效果越好，錐角越大，可較快分離出粒徑較大的產物。
並列摘要
Filtration and separation technology is widely used in industry and plays an important role in modern chemical, energy and environmental engineering, such as food refining, chemical product purification, high-purity electronic material manufacturing and biotechnology. The hydrocyclone separator is a high energy-saving technology in solid-liquid separation, which utilizes the inertial centripetal force of solid and liquid to achieve separation and separation of particles, which can be applied to solid-liquid phase bifurcation or liquid-liquid phase, Gas-liquid phase and solid-liquid-gas multiphase bifurcation. In the past, most of the hydrocyclone simulations in the academic world were discussed by CFD. Few people used the Aspen plus program to simulate, so this study started with Aspen plus. In this study, AspenPlus software was used to simulate a hydrocyclone with a diameter of 30 mm. The potato aqueous solution was used for the feed.And describe in detail how to operate the hydrocyclone in the Aspen plus.Furthermore, the effects of pressure and cone angle on the particle size distribution and separation efficiency of the overflow and underflow are analyzed, and compared with the experimental data of the past. The simulation results show that the breakthrough of Aspen plus simulation on the hydrocyclone can be used to quickly observe the internal particle size distribution of the solution, or simulate the form of separation efficiency.It is faster and more convenient than CFD simulation, which is often used on hydrocyclone.The change of pressure is consistent with the trend of experimental data, and the influence on the cone angle, the smaller the cone angle, the better the separation effect, the larger the cone angle, the more the separated particle size.