轻工机械2025，Vol.43Issue(5)：47-51,5.DOI:10.3969/j.issn.1005-2895.2025.05.006
基于气扫式膜蒸馏的热敏料液近冰点浓缩装置
Near-Freezing Point Concentration Device for Heat-Sensitive Liquids Based on Sweeping Gas Membrane Distillation
刘际洲 1陈东 1曹旭 1葛晟1
作者信息
- 1. 天津科技大学机械工程学院,天津 300457
- 折叠
摘要
Abstract
Regarding the issue of solute loss caused by low-temperature concentration requirements and freeze concentration methods for heat-sensitive liquids,a near-freezing point concentration device based on sweeping gas membrane distillation was designed.This device achieved concentration of heat-sensitive liquids at near 0℃and atmospheric pressure by vaporizing water from the liquid into water vapor,which was then expelled through hydrophobic microporous membranes with no solute loss during the concentration process.The effects of membrane tube inner diameter,membrane pore size,purge gas flow rate,and temperature of sweeping gas out of heat receiver on device performance were analyzed by establishing a mathematical model and developing performance simulation software.The results indicate that when the inner diameter of the membrane tube is 1.0 mm,the membrane pore diameter is 0.2 μm,the sweeping gas flow rate is 0.3 m/s,and the temperature of the sweeping gas exiting the heat receiver is-6℃,the device achieves a concentration rate of 0.182 kg/h and an energy consumption ratio of 0.294 kWh/kg.The research provides a reference for further optimizing the performance of the concentration device and is conducive to its industrial application.关键词
浓缩装置/气扫式膜蒸馏/近冰点浓缩/热敏料液/浓缩速率/浓缩能耗比Key words
concentration device/sweeping gas membrane distillation/near-freezing point concentration/heat-sensitive liquids/concentration rate/concentration energy consumption ratio分类
轻工纺织引用本文复制引用
刘际洲,陈东,曹旭,葛晟..基于气扫式膜蒸馏的热敏料液近冰点浓缩装置[J].轻工机械,2025,43(5):47-51,5.
