某制冰洁净车间气流组织的数值模拟及优化设计  

Numerical Simulation and Optimization Design of an Ice-making Clean Workshop

作　　者：戴志海 谢东 王汉青[2,3] 杨红波[4] DAI Zhi-hai;XIE Dong;WANG Han-qing;YANG Hong-bo(School of Civil Engineering,University of South China,Hengyang 421000,China;Engineering Lab of Hunan for Building Environment Control,University of South China,Hengyang 421001,China;School of Civil Engineering,Central South University of Forestry and Technology,Changsha 410004,China;Guangzhou Bingquan Refrigeration Equipment Co.,Ltd.,Guangzhou 511447,China)

机构地区：[1]南华大学土木工程学院,衡阳421000 [2]南华大学建筑环境控制技术湖南省工程实验室,衡阳421000 [3]中南林业科技大学土木工程学院,长沙410004 [4]广州冰泉制冷设备有限责任公司,广州511400

出　　处：《科学技术与工程》2023年第28期12225-12233,共9页Science Technology and Engineering

基　　金：国家自然科学基金(U1867221);湖南省自然科学基金(2020JJ6004)。

摘　　要：制冰洁净车间中设计良好的气流组织能快速去局部短时间触发的污染物,能有效减少产品暴露在污染环境中的时间,因此对洁净车间气流组织进行优化设计是非常有必要的。基于CFD(computational fluid dynamics)技术以某低温制冰洁净车间为研究对象,探究不同洁净风柜布置方案和不同运行工况对洁净车间中污染物排除速率和温度均匀性的影响,并寻求更优的布置方案和运行工况。通过不同布置方案的对比模拟,发现吸风口的位置对于颗粒物去除效率有非常大的影响;通过单因素模拟并进行因素交互性分析得出结论,当送风角度为45°,换气次数为30次/h时,洁净车间生产区域的环境参数最佳,与优化前的环境参数对比,60 s内的颗粒物去除效率提高了5.3%,温度均匀性提高了22.3%。The well-designed air distribution in the ice making clean workshop can quickly remove local triggering pollutants accidentally generated and reduce the time of effective products exposed to the polluted environment.Therefore,it is very necessary to optimize the air distribution in the clean workshop.Based on computational fluid dynamics(CFD)technology,a low-temperature ice making clean workshop was taken as the research object,to explore the influence of different clean air cabinet layout schemes and different operating conditions on the pollutant removal rate and temperature uniformity in the clean workshop,and to seek better layout schemes and operating conditions.Through the comparison and simulation of different arrangement schemes,it is found that when the particulate matter is emitted from the source,some of the particulate matter will be directly removed in a short period of time by a closer suction vent,and the position of the suction vent has a great impact on the removal efficiency of the phenomenon of particulate matter.Through single factor simulation and factor interaction analysis,it is concluded that when the air supply angle is 45°and the air change frequency is 30 times/h,the environmental parameters of the production area of the clean workshop are the best.Compared with the environmental parameters before optimization,the particle removal efficiency is increased by 5.3%and the temperature uniformity is increased by 22.3%within 60 s.

关 键 词：洁净室 数值模拟 颗粒气溶胶 温度均匀性 

分 类 号：TU834[建筑科学—供热、供燃气、通风及空调工程]