1 000 MW机组大型海水冷却塔热力性能试验研究

冷却塔的热力性能是冷却塔工艺设计的关键影响因素。为获得大型海水冷却塔的热力性能，对某1 000 MW机组配用的淋水面积为12 000 m2的大型海水冷却塔的热力性能进行了试验研究，得到了大型海水冷却塔热力性能方程式，并与淡水模拟塔中淋水填料热力性能试验结果进行了对比分析；给出了大型海水冷却塔内实测风温分布；分析了冷却塔采用海水后热季时对出塔水温的影响量，可为海水冷却塔的工程应用提供参考。

Experimental Research on Thermal Performance of Large Seawater Cooling Tower Used in 1000-MW Power Unit

The thermal performance is the key affecting factor for the design of the cooling tower. In order to obtain the thermal performance of the large seawater cooling tower, the experimental research is conducted on the thermal performance of the large seawater cooling tower with 12 000-m2 drenching area used in a 1 000-MW power unit. From the research the thermal performance equation of the tower is obtained and the comparison is conducted between the tower’s thermal performance and the test results of the packing in the freshwater simulated cooling tower. The real air temperature distribution in the large seawater cooling tower is presented. The influence of seawater on the outlet water temperature of the cooling tower is analyzed quantitatively. The results can be a reference for the engineering application of the seawater cooling tower.