摘要
本文通过实验研究四种PVC斜交错淋水填料的热力和阻力性能，得到：通过嵌入点粘结替代传统粘结方式，填料在运行过程中可以保持流道规则和畅通，大大改善填料的性能。在相同粘结方式下，小片距填料的冷却效率都比大片距填料高，但小片距的通风阻力比大片距的大；在相同片距条件下，在迎面风速1．0-2．6m／s范围内，嵌入点粘结的阻力值是传统方式粘结阻力值的93．2％～98．14％；都是嵌入点粘结条件下，增大填料片距，会带来冷却效率降低，在满足相同冷却量的情况下，增大气水比，即增加空气流量，导致通风阻力大大增加，甚至比小片距的通风阻力还大，因此，填料在运行过程中要选择适当的片距。
Four kinds of oblique cross film packing with different adhesion technology and packing space were used as test objects in this paper to analysis their thermal and resistance performance. Results show that by replacing traditional adhesion by embedding points adhesion, the performance of oblique cross film packing was greatly improved due to the regular and unimpenetrable flow path. Under the same adhesion, the cooling efficiency of the packing of small packing space is higher than that of large packing space, but the resistance of the packing with small packing space is also higher. Under the same packing space, when the air velocity is within the limits of 1.0-2.6m/s, the resistance of the packing of embedding points adhesion is 93.2% -98.14% of the traditional ones. For the packings of embedding points adhesion, increasing the packing space can reduce the cooling efficiency. Under the same cooling capacity, increasing air water ratio （air flow rate） leads to larger ventilation resistance, even larger than that of the small packing space. Therefore, proper packing space is required.
出处
《建筑热能通风空调》
2016年第11期53-59,共7页
Building Energy & Environment
关键词
冷却塔
淋水填料
嵌入点粘结
冷却效率
通风阻力
cooling tower, packing, embedding points adhesion, packing space, thermal performance, ventilation resistance
