横流填料热力与阻力性能实验研究  

Experimental Research on Thermal Performance and Pressure Drop of Cross-flow Packing

作　　者：王丽莎 章立新[1] 陈雨豪 杨豪 WANG Li-sha;ZHANG Li-xin;CHEN Yu-hao;YANG Hao(Shanghai Key Laboratory of Multiphase Flow and Heat Transfer in Power Engineering,School of Energy and Power Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China)

机构地区：[1]上海理工大学能源与动力工程学院,上海市动力工程多相流动与传热重点实验室,上海200093

出　　处：《广州化学》2020年第5期58-64,共7页Guangzhou Chemistry

摘　　要：随着横流冷却塔的发展,横流填料几经优化,目前使用较为普遍的是薄膜式填料,其进风格栅、收水格栅与淋水散热段是一体的。相关填料的热力与阻力特性式报道很少,目前公开的基本是款型较为老旧的填料按行业标准在填料模拟实验台上测试所得的特性式,难以应用于现在的横流冷却塔设计。针对上述问题,研究了一种新的填料性能测试实验台,该实验台的布水及通风完全参照填料实际使用状况设计,可在接近实塔的气流与淋水分布条件下研究填料的热力及阻力特性;利用该实验台测试一款横流填料,并拟合其热力及阻力特性公式;该填料应用于实塔,对比拟合公式计算所得热力参数与实塔测试的热力参数,两者的最大相对误差为3.7%。利用拟合公式对应用该款填料的空调型冷却塔进行校核计算,其可高达30002 kg/(m^3·h)。With the development of cross-flow cooling towers,the cross-flow packing has been optimized several times.The film packing is currently commonly used,and its air inlet grille,water intake grille and water spraying cooling section are integrated.There are few reports on the thermal and resistance characteristics of the related fillers.The current disclosure is basically the characteristics of the older types of fillers tested on the filler simulation test bench according to industry standards,which is difficult to apply to the design of current cross-flow cooling towers.In view of the above problems,a new filler performance test bench was studied.The water distribution and ventilation of this bench were designed according to the actual use of the filler.The thermal and Resistance properties of the filler can be studied under the airflow and water distribution conditions close to the real tower’s condition;use this experimental platform to test a cross-flow packing and fit its thermal and resistance characteristics formula;The maximum relative error between the thermodynamic parameters calculated by the matching formula and those measured by the real tower is 3.7%when the packing is applied to the real tower.The fitting formula is used to check and calculate the air-conditioned cooling tower with this kind of filler,and the amount of is up to 30002 kg/(m^3·h).

关 键 词：横流冷却塔 填料 热力特性 阻力特性 

分 类 号：TB332[一般工业技术—材料科学与工程]