超大型湿式冷却塔干湿混合雨区正交优化研究  

Study on Orthogonal Optimization for the Super-large Wet Cooling Tower With Dry-wet Hybrid Rain Zone

作　　者：张政清 王明勇[2] 张德英 陈瑞 何锁盈 高明[1] ZHANG Zhengqing;WANG Mingyong;ZHANG Deying;CHEN Rui;HE Suoying;GAO Ming(Shandong Engineering Laboratory for High-efficiency Energy Conservation and Energy Storage Technology&Equipment(School of Energy and Power Engineering,Shandong University),Jinan 250061,Shandong Province,China;Xi'an Thermal Power Research Institute Co.,Ltd.,Xi’an 710054,Shaanxi Province,China)

机构地区：[1]高效节能及储能技术与装备山东省工程实验室(山东大学能源与动力工程学院),山东省济南市250061 [2]西安热工研究院有限公司,陕西省西安市710054

出　　处：《中国电机工程学报》2022年第22期8224-8231,共8页Proceedings of the CSEE

基　　金：国家自然科学基金项目(51776111);山东大学青年学者未来计划(2018WLJH73)。

摘　　要：为研究分流板各参数对干湿雨区冷却塔性能提升效果的影响规律,并得到优化的干湿混合雨区结构参数,该文建立湿式冷却塔三维数值计算模型,并对某超大型湿式冷却塔干湿混合雨区进行正交优化研究。结果表明:对所研究的冷却塔而言,分流板总覆盖面积为2797.08m2、安装角度为15°、长度为30.9m、安装高度为10.37m、数量4的干湿混合雨区能达到最佳性能提升效果;在该文研究范围内,性能提升效果随分流板总覆盖面积、长度和安装高度的增加而增强,随安装角度的增大先增强后减弱,随分流板数量的增大先减弱后增强;相关性分析表明干区总体积对温降增量的影响要大于干区进口总面积。该研究可为雨区干湿混合冷却模式的工程应用提供理论参考和借鉴。In order to study the influence of the parameters of the split-plates on the efficiency of the dry-wet rain zone cooling towers, and obtain the optimized parameters of the dry-wet hybrid rain zone, the three-dimensional numerical model of wet cooling towers was established in this paper, and the orthogonal optimization of the dry-wet hybrid rain zone of a super-large wet cooling tower was proposed. The results show that for the cooling tower studied in the paper, the best efficiency can be achieved with the split-plates with a total coverage area of 2797.08m2, an installation angle of 15°, a length of 30.9m, an installation height of 10.37m and a number of 4;within the researched range, the efficiency enhancement effect increases with the the total coverage area, length and installation height, increases first and then decreases with the increase of installation angle, and decreases first and then increases with the increase of the number of split-plates. The correlation analysis shows that the influence of the total volume of the dry zone on the temperature drop increment is higher than the total inlet area. The research can provide theoretical reference for the engineering application of dry-wet hybrid cooling mode in rain zone.

关 键 词：超大型湿式冷却塔 冷却性能 正交优化 干湿混合雨区 数值计算 

分 类 号：TK12[动力工程及工程热物理—工程热物理]