摘要
紫外线(UV)杀菌技术作为一种高效、安全、经济的压载水处理技术,被广泛应用于跨洋运输船舶压载水处理领域中。由于紫外辐照时间是影响压载水UV装置杀菌效果的重要因素之一,因此论文提出对UV杀菌装置的进口和出口分别添加导流叶片,来优化杀菌装置腔体内的流场分布,改善粒子辐照剂量均匀性的处置。建立紫外辐照强度、粒子辐照剂量和耦合流体流动的数值计算模型,利用该模型对工业尺寸的UV杀菌装置进行了模拟计算。采用Fluent软件对优化后的UV杀菌装置进行模拟计算,结果显示,经过优化的杀菌装置在紫外总功率没有增加的情况下,粒子受到的紫外辐照平均剂量增长了20.5%,极大地提高了UV杀菌装置的处理效果。
As an efficient,safe and economical technology for ballast water treatment,Ultraviolet（UV）disinfection technolo-gy has been widely used in the field of ballast water treatment for trans-oceanic ships. The UV irradiation time is one of the most im-portant factors which affect the bactericidal effect of ballast water UV treatment device,so it is proposed in this paper to add guidevanes at the inlet and outlet of the UV treatment device to optimize the distribution of flow field and the uniformity of particle irradia-tion dose in the UV device. The calculation model of UV radiation intensity,particle irradiation dose and coupling fluid flow are es-tablished,and the model is used to simulate the industrial size UV treatment device. The Fluent software is used to simulate and cal-culate the optimized UV disinfection device. The simulation results show that the optimized device can increase the average dose ofultraviolet radiation of particles by 20.5% under the condition that the total power of UV is not increased,which greatly improves thetreatment effect of UV sterilization device.
作者
刘畅
傅祥棣
李俊霞
陈宁
LIU Chang;FU Xiangdi;LI Junxia;CHEN Ning(School of Energy and Power Engineering,Jiangsu University of Science and Technology,Zhenjiang 212003)
出处
《舰船电子工程》
2018年第7期80-84,共5页
Ship Electronic Engineering
关键词
压载水
UV杀菌装置
优化设计
导流叶片
ballast water
UV treatment device
optimizing design
guide vane
