卧式双轴圆盘反应器的成膜特性及圆盘结构优化模拟  

Simulation on film formation characteristics of horizontal biaxial disc reactor and disc structure optimization

作　　者：朱宏跃 陈旭鹏 路荣荣 周丹 刘一鸣 ZHU Hongyue;CHEN Xupeng;LU Rongrong;ZHOU Dan;LIU Yiming(Shanxi Key Laboratory of Catalysis and Energy Coupling,Taiyuan University of Science and Technology,Taiyuan 030024,Shanxi Province,China;School of Chemical Engineering,Dalian University of Technology,Dalian 116033,Liaoning Province,China)

机构地区：[1]太原科技大学催化转化能源耦合山西省重点实验室,山西太原030024 [2]大连理工大学化工学院,辽宁大连116033

出　　处：《化学工程》2024年第10期58-63,76,共7页Chemical Engineering(China)

基　　金：国家自然科学基金资助项目(22075197);山西省高等学校科技创新项目(2023L182);来晋工作优秀博士奖励资金项目(20232066);太原科技大学校级博士启动金资助项目(20222082)。

摘　　要：圆盘反应器具有优异的传质性能,常被用于聚合物脱挥过程。通过CFD(流体力学)数值模拟方法,研究不同操作条件下卧式双轴搅拌圆盘反应器的成膜特性与表面更新特性,利用流体体积函数法模拟,得到相比于背转,对转在膜面积、表面更新频率和功率方面更有优势。聚合物黏度越大,液膜越厚。转速是影响液膜平均更新频率的主要因素。对比分析3类新型圆盘结构在不同工况条件下的脱挥性能,得到圆齿型圆盘表面更新快、功率消耗少,但持液量最少。Disk reactors are often used in polymer devolatilization processes because of their excellent mass transfer performance.The CFD numerical simulation method was used to study the film-forming characteristics and surface renewal characteristics of the horizontal biaxial stirred disc reactor under different operating conditions and the fluid volume function method was used to simulate.It is found that compared with back-rotation,counter-rotation has more advantages in membrane area,surface update frequency and power.The greater the viscosity of the polymer,the thicker the liquid film,and the rotational speed is the main factor affecting the average update frequency of the liquid film.Comparative analysis of the devolatilization performance of three types of new disc structures under different working conditions shows that the scalloped disc surface updates quickly,consumes less power,but has the least liquid holding capacity.

关 键 词：双轴圆盘反应器 成膜特性 表面更新 结构优化 数值模拟 

分 类 号：TQ051.7[化学工程]