水平布置间冷塔环境风影响的性能研究

Analysis on the Performance of the Auxiliary Cooling Tower in the Horizontal Arrangement from the Environmental Wind

本文针对2 ×600 MW核电机组空冷系统,研究其在环境风的各项因素变化时对间接空冷系统性能的影响。结果表明:虽然风向对间冷塔的影响相对直冷要减弱很多,但空冷系统对风速的敏感程度很大,风速增加散热能力降低,背压增加,风速的变化对间冷运行效果的影响非常直接,尤其空冷系统受不同风温和不同风速组合的影响更为敏感,风速风温增加散热性能降低相对更多,因此对于空冷系统来说,对环境风的影响进行分析研究具有重要的意义。

For the 2 ×600 MW air cooling system, the influence on the performance of auxiliary cooling system is studied when the factors in the environmental wind change. The result shows: the effect of the wind direction on the auxiliary cooling tower is less than the direct air-cooling tower. But the degree of sensitivity on the wind speed from the air cooling system is very big. With the wind speed increasing, the heat dissipation capability reduces, and the back pressure increases, so the changes of the wind speed have a direct influence on the operation effect of the auxiliary cooling tower. Especially the combination of the different wind speed and temperature also has a more sensitive effect on the air cooling system. With the increase of the wind speed and temperature, the heat dissipation capability reduces. So the analysis of the environmental wind has an important significance.