聚合物熔体冷却器结构开发及理论计算分析  

Structure Development and Theoretical Analysis of Melt Cooler for Polymer

作　　者：杨丽含 朱伟林[1] 吴申康 郑大龙[1] 李庆春[1] 何亚东[1] 

机构地区：[1]北京化工大学机电工程学院,北京100029

出　　处：《塑料科技》2016年第9期68-72,共5页Plastics Science and Technology

摘　　要：针对高分子聚合物在发泡过程中具有高黏度、低流速的特点,根据高聚物熔体的换热需求、工艺条件,设计研发出了具有多孔式换热内芯的熔体冷却器。基于对流传热理论,计算不同结构参数下换热内芯的换热面积,对比分析各结构参数对换热面积和熔体压降的影响,总结得出规律。还针对某一种特定工艺条件进行理论设计计算并与实验值进行对比,得到最优结构参数配置,为多孔式熔体冷却器的优化设计和系列化设计提供参考依据。According to the characteristics of high viscosity and low flow rate of polymer in the foaming process, the melt cooler with porous heat transfer inner core was designed and developed according to the requirement of heat transfer and the technological conditions. Based on convection heat transfer theory, the heat exchange area of the heat in the core under different structural parameters was calculated, the influence of the structure parameters on the heat transfer area and the melt pressure drop was compared and analyzed, and then the rules were summarized. Aiming at getting the optimal structure parameter configuration under a specific condition, theoretical calculation was compared with the experimental values, and provided the reference for the porous melt cooler design and series design.

关 键 词：高聚物熔体 冷却器 结构设计 对流传热 

分 类 号：TQ315[化学工程—高聚物工业]