自然通风海水冷却塔填料高度计算方法  

Method for Calculating the Packing Height Inside a Natural Ventilation Sea Water Cooling Tower

作　　者：谢迎春[1] 杨友胜[2] 徐震[3] 

机构地区：[1]中国海洋大学工程学院,山东青岛266100 [2]国家海洋局南海维权技术与应用重点实验室,广东广州510310 [3]中国科学院(工程热物理所)先进能源动力重点实验室,北京100190

出　　处：《热能动力工程》2013年第6期633-637,664,共5页Journal of Engineering for Thermal Energy and Power

基　　金：国家自然科学基金资助项目(51275495);国家海洋局南海维权技术与应用重点实验室开放基金资助项目(SMZS-KCF-P2013012);国家高新技术研究发展计划(863)项目(2012AA091103);中国海洋大学国家大学生创业训练计划资助项目(201310423065)

摘　　要：基于Merkel理论,改进了用于海水冷却塔热力特性计算的空气湿球温度修正算法,提出关联进气状态的湿球温差方程,发展了一种自然通风海水冷却塔填料高度解析计算方法。分析了不同海水浓缩倍率下水气比、底部温差和进口水温对海水冷却塔填料高度的影响,结果表明浓缩倍率为2时,底部温差由7℃降至3℃,填料高度增加约10%,而进口水温由35℃增至45℃,填料高度减小约2%。底部温差对海水塔填料高度的影响最为显著,而进口水温几乎无影响。Based on the Merkel theory,improved was an air wet ball temperature correction calculation method for calculating the thermal characteristics of sea water cooling towers with a wet ball temperature difference equation relating to the air inlet state being proposed and an analytic calculation method for calculating the packing height in a natural ventilation sea water cooling tower being developed. On this basis,the influence of the water / gas ratio,bottom temperature difference and inlet and outlet water temperature at various sea water concentration ratios on the packing height in a sea water cooling tower was analyzed. It has been found that when the concentration ratio is 2,the bottom temperature difference will decline from 7℃ to 3 ℃,the packing height will rise by about 10%,the inlet water temperature will increase from 35 ℃ to 45 ℃ and the packing height will drop by about 2%. The bottom temperature difference has a most remarkable influence on the packing height in the sea water cooling tower while the inlet water temperature has almost no influence.

关 键 词：海水冷却塔 填料高度 底部温差 

分 类 号：TM621.9[电气工程—电力系统及自动化]