环境风对直接空冷机组影响的数值仿真及优化

摘要

以宁夏某电厂350MW直接空冷机组为例,环境风直接影响直接空冷机组的换热性能,针对环境风温对空冷机组影响,数值仿真不同风温、风速、风向对直接空冷机组背压和负荷的影响,分析不利情况,提出降负荷运行.%Taking 350MW direct air-cooling unit in one power plant in ning xia as an example, the environmental wind directly affects the heat transfer performance of direct air-cooling unit.In view of the environmental air temperature effecting on air cooling unit,this paper makes numerical simulation of direct air-cooling unit under different air temperature,wind speed and direction of direct air cooling unit back pressure and the change of load,analysising of adverse situation,putting forward the load down.