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基于节能减排的趋势,生产药用蒸馏水和注射用水的蒸馏水机的传热性能日益受到关注。以列管式蒸馏水机传热基本单元的结构特点为基础,搭建了以水和水蒸气为传热介质的简易实验台。通过试验研究,得到不同工况下内置光管和波纹管两种形式蒸馏水机基本结构的传热性能;同时建立其流动与传热的三维简化计算模型,利用计算流体力学方法,分别对两种形式蒸馏水机进行数值模拟,将实验值与数值计算结果进行对比分析,并综合评价其换热性能,为药用蒸馏水机整体换热结构的性能优化提供了技术手段和理论依据。
Based on the trend of energy conservation and emission reduction, heat transfer performance of distilled water machines for producing medicinal distilled water and water for injection has drawn increasing attention. Based on the structural characteristics of the basic unit of heat transfer in a tube-type distilled water machine, a simple experiment bench with water and steam as the heat transfer medium was set up. Through the experimental study, the heat transfer performance of the basic structure of two kinds of distilled water machines with built-in light pipe and corrugated pipe under different working conditions was obtained. At the same time, a three-dimensional simplified calculation model of flow and heat transfer was established. By using computational fluid dynamics method, Form distilled water machine, the experimental value and the numerical calculation result are compared and analyzed, and the heat transfer performance is evaluated comprehensively, which provides the technical means and theoretical basis for the performance optimization of the overall heat exchange structure of the medicinal distilled water machine.