多孔陶瓷管式露点间接蒸发冷却器实验研究

为了解决管式间接蒸发冷却器壁面的亲水性问题,笔者在多孔陶瓷管式露点间接蒸发冷却器实验台上通过实验的方法对该冷却器的二次/一次风量比、淋水量以及一次空气侧压降进行了实验研究。结果表明:一次风量为500m3/h时,最佳二次/一次风量比为0.9,此时效率达到35.4%,温降达到4℃;在二次/一次风量比为0.9的工况下,淋水量越小,冷却器的效率和温降越高,在淋水量为0L/h时,冷却器的效率和温降达到最大,并且冷却器效率和温降可稳定维持100min,在淋水量为150L/h工况下,连续喷水5min可以将多孔陶瓷管充分湿润,大大缩减了喷水时间,可真正实现间歇供水,节水节能;冷却器一次空气侧压降随着一次风量的增大而增大,一次风量为500m3/h时,压降为118Pa。

Experimental Study on Porous Ceramics Tube Type Dew Point Indirect Evaporative Cooler

To improve the hydrophilic of tube type indirect evaporative cooler wall surface,the experimental study was carried out with the porous ceramics tube type dew point indirect evaporative cooler test rig.The ratio of the secondary and primary air volumes,the water spray volume and the primary air-side pressure drop of the cooler were discussed.The results demonstrated that the best ratio of the secondary and primary air volumes was 0.9 when the primary air volume was 500 m3 /h.Under this condition,the efficie...