本文選題：微反應(yīng)器 + 數(shù)增放大　； 參考：《北京化工大學(xué)》2015年碩士論文

【摘要】：微反應(yīng)器由于其優(yōu)異的性能受到了越來越多研究者的重視,但微反應(yīng)器存在著集成結(jié)構(gòu)復(fù)雜、加工難度大,難以檢測和控制等缺陷,在工業(yè)上應(yīng)用的較少。本文為解決微反應(yīng)器放大問題,設(shè)計制造了兩種新型反應(yīng)器。主要研究內(nèi)容如下：(1)設(shè)計了兩種反應(yīng)器,一種為適合高流速高處理量的多通道微撞擊流反應(yīng)器(multi-channel MISR),另一種為適用于低流速下的集束式對流微反應(yīng)器(C-CFMCR)。(2)使用Villermaux/Dushman反應(yīng)體系評價多通道微撞擊流反應(yīng)器的微觀混合性能。增大反應(yīng)流體雷諾數(shù)和保持體積流量比為1,可顯著提高多通道微撞擊流反應(yīng)器的微觀混合效率�；趫F(tuán)聚模型計算得到的多通道微撞擊流反應(yīng)器的微觀混合時間為0.9-20 ms。在多通道微撞擊流反應(yīng)器中制備出平均粒徑較小且粒徑分布較窄的納米硫酸鋇顆粒。(3)集束式對流微反應(yīng)器的微觀混合性能在一定范圍內(nèi)隨著流體體積流量的增大而增大,但當(dāng)流量增大到一定程度后反而有所下降。根據(jù)團(tuán)聚模型法計算得到反應(yīng)器的微觀混合時間為0.32-5.69 ms。在集束式對流微反應(yīng)器內(nèi)制備得到的硫酸鋇顆粒粒徑約為20 nm,明顯優(yōu)于攪拌釜式反應(yīng)器。本文為微反應(yīng)器的放大提供了新的思路,多通道微撞擊流反應(yīng)器和集束式對流微反應(yīng)器實現(xiàn)了微反應(yīng)器在一定規(guī)模上的放大,并且具有良好的混合效果,具有很大的工業(yè)應(yīng)用潛力。
[Abstract]:The microreactor has attracted more and more attention because of its excellent performance. However, there are many defects in the microreactor, such as complex structure, difficult processing, difficult to detect and control. In this paper, two kinds of new reactors are designed to solve the problem of microreactor magnification. 1) two kinds of reactors are designed, one is a multi channel micro impinging flow reactor (multi-channel MISR) suitable for high velocity and high velocity, and the other is a cluster type convective microreactor (C-CFMCR) suitable for low flow velocity. (2) the micro mixing performance of the multichannel micro impinging flow reactor is evaluated using the Villermaux/Dushman reaction system. The ratio of the Reynolds number and the volume flow ratio is 1, and the micro mixing efficiency of the multichannel micro impinging flow reactor can be significantly improved. The micro mixing time of the multi channel micro impinging flow reactor calculated by the aggregation model is 0.9-20 Ms. in the multi-channel micro impingement reactor to prepare the smaller average particle size and the narrow particle size distribution. Barium sulfate particles. (3) the micro mixing performance of the cluster type convective microreactor increases with the increase of volume flow rate in a certain range, but decreases when the flow rate increases to a certain extent. The micro mixing time of the reactor is calculated to be 0.32-5.69 Ms. in the cluster type convective microreactor based on the aggregation model method. The prepared barium sulfate particle size is about 20 nm, which is obviously superior to the stirred tank reactor. This paper provides a new idea for the amplification of microreactor. The multi-channel micro impinging flow reactor and the cluster type convective microreactor have realized the magnification of the microreactor on a certain scale, and have good mixing effect. It has a great industry. Application potential.
【學(xué)位授予單位】：北京化工大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2015
【分類號】：TQ052

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本文編號：1943972