逆顺流式与逆流式无填料喷雾冷却塔的试验研究

Experimental Study on Parallel & Counter-flow and Counter-flow No-padding Spraying Cooling Tower

根据雾化冷却原理,建立了逆顺流式无填料喷雾冷却塔和逆流式无填料喷雾冷却塔,在介绍了30 t/h试验用逆顺流式和逆流式无填料喷雾冷却塔的结构和性能的基础上,通过试验对两种冷却塔的冷却性能进行了研究,试验结果表明:当设计风量相同时,逆流式无填料喷雾冷却塔的实测风量比逆顺流式无填料喷雾冷却塔的实测风量大5.5%;在试验工况基本相同的条件下,逆流式无填料喷雾冷却塔的进出水温差较逆顺流式无填料喷雾冷却塔大0.5℃,逼近度约小0.9℃,冷却效率大20%,且其冷却效率最大值为53.4%。

According to the principle of atomization cooling, the parallel ＆ counter-flow no-padding spraying cooling tower and the counter-flow no-padding spraying cooling tower were established. The structure and performance of the 30t/h experimental parallel ＆ counter-flow no-padding spraying cooling tower and counter-flow no-padding spraying cooling tower were introduced. And through experiments the cooling performances of this two kinds of cooling tower were studied. The results showed ： when the design air flow of two kinds of cooling tower were the same, the measured air flow of counter-flow no-padding and spraying cooling tower was 5.5% more than that of parallel ＆ counter-flow no-padding and spraying cooling tower. When the experimental cases were approximately the same, the temperature difference of cooling water in the former was 0.5 ℃ higher than the latter, the degree of the former approximation was 0.9℃ less, and the cooling efficiency of the former was 20% higher; what＇ s more, the cooling efficiency of counter-flow no-padding and spraying cooling tower could reach 53.4 % to the maximum.