火电厂1000MW机组横流塔淋水填料和配水优化布置研究

摘要

Natural draught cross-flow cooling tower applies to large capacity fossil fuel power unit.This paper refer to cooling demand of 1 000 MW fossil fuel power unit,combine water distribution calculation,thermal calculation and optimization calculation,put forward water distribution system arrangement,the correlation between variations of packing arrangement and water temperature of tower outlet,recommended range of packing height,depth and radius of natural draught cross-flow cooling tower.The result economizes the packing and reduces the circulating water pumps hydraulic pressure.%自然通风横流式冷却塔是一种适用于大容量火电机组的冷却塔形式.按火力发电厂1 000 MW机组循环水系统的冷却负荷,针对自然通风横流式冷却塔,结合配水计算、热力计算和优化计算对填料高度、填料深度和半径进行研究和分析,给出了1 000 MW机组自然通风横流式冷却塔配水系统布置型式、淋水填料高度、深度变化与出塔水温相关关系,以及淋水填料高度、深度、半径推荐范围,以达到节省填料,降低水泵扬程的目的.