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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。
In order to solve the problem of the hydrophilicity of the tube indirect evaporative cooler wall, the author of this experiment in the porous ceramic tube dew point indirect evaporative cooler experimental bench on the cooler secondary / primary air volume ratio, water volume and primary air Side pressure drop experiments were carried out. The results show that when the primary air volume is 500m3 / h, the optimum secondary / primary air volume ratio is 0.9, the efficiency reaches 35.4% and the temperature drop reaches 4 ℃. When the secondary / primary air volume ratio is 0.9, The smaller the amount of water is, the higher the efficiency and temperature drop of the cooler are. When the amount of water poured is 0L / h, the efficiency and temperature drop of the cooler reach the maximum, and the efficiency and temperature drop of the cooler can be maintained for 100min. When the amount of water poured is 150L / h conditions, continuous water spray 5min porous ceramic tube can be fully wet, greatly reducing the water spray time can be truly intermittent water supply, water and energy saving; air cooler primary air pressure drop with the primary air volume increases Increase, an air volume of 500m3 / h, the pressure drop of 118Pa.