斜波薄膜填料与丝网填料性能对比试验研究

Comparative Experimental Research on the Performance of Inclined Wave Film Packing and Wire Mesh Packing

摘要: 为了探究不同类型淋水填料的冷却性能差异，为冷却塔优化设计提供数据支撑，本文在淋水填料热力阻力性能测试平台上，对斜波薄膜淋水填料和丝网淋水填料进行了热力阻力特性测试。试验在淋水密度为11.19 t/(m²·h)、断面风速为2.1 m/s、进水温度为41℃的统一工况条件下，以斜波薄膜1.8 m高淋水填料为基准，对比分析了丝网淋水填料的出塔水温、压差损失及冷却数。研究结果表明：丝网淋水填料的冷却性能弱于斜波薄膜淋水填料；填料热力性能与阻力呈正相关关系，热力性能越优，流动阻力越大。该研究成果可为冷却塔填料选型及结构优化提供重要参考。

Abstract: To explore the differences in cooling performance among different types of packings and provide data support for the optimal design of cooling towers, this paper conducts tests on the thermal resistance characteristics of inclined-wave film packings and wire mesh packings on a thermal resistance performance test platform for packings. The test was carried out under the unified operating conditions of a water spraying density of 11.19 t/(m²·h), a cross-sectional air velocity of 2.1 m/s and an inlet water temperature of 41˚C. Taking the 1.8 m-high inclined-wave film packing as the reference, a comparative analysis was performed on the outlet water temperature, pressure loss and cooling number of the wire mesh packing. The research results show that the cooling performance of the wire mesh packing is weaker than that of the inclined-wave film packing; there is a positive correlation between the thermal performance and resistance of the packings—the better the thermal performance, the higher the flow resistance. The research results can provide important reference for the selection and structural optimization of cooling tower packings.