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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, the air wet-bulb temperature correction algorithm for the calculation of thermodynamic characteristics of seawater cooling towers is improved. The wet-bulb temperature difference equation associated with the inlet air condition is proposed, and a method for calculating the packing height of the naturally-ventilated seawater cooling tower is developed. The effects of water vapor ratio, bottom temperature difference and inlet water temperature on seawater tower packing height were analyzed under different seawater concentration ratios. The results showed that the temperature difference between bottom and bottom decreased from 7 ℃ to 3 ℃ and the packing height increased about 10% The inlet water temperature increased from 35 ° C to 45 ° C and the packing height decreased by about 2%. Bottom temperature difference has the most significant impact on seawater tower packing height, while imported water temperature has almost no effect.