摘要
以琅琊山水电站为例,对发电机层顶拱送风方式进行了热态相似模型试验,采用相似理论与热量阿基米德相似准则数,构建试验模型相似比例尺,探讨了同一风量下不同风口个数、送风温度、送风方式及排风方式对发电机层工作区速度场与温度场的影响程度。结果表明,在空调送风、机械排风时发电机层工作区气流组织均匀,风速满足要求,能有效消除工作区热负荷。
Taking Langya Mountain hydropower station for an example, the thermal state similarity model test of the dome in generator floor is discussed. Based on similarity theory and similarity number of heat Archimedes, the similarity scales of experimental model are established. Based on the different vents numbers, air temperature, velocity, ways of ventilation and exhaust ways, the change of velocity and temperature field distribution in generator floor are analyzed. The results show that the air flow distribution is uniform when the air-conditioning cold is supplied and the fans for the ventilation are working; the wind velocity meets requirements and the temperature is effectively reduced.
出处
《水电能源科学》
北大核心
2011年第8期144-147,共4页
Water Resources and Power
基金
河南省教育厅科技攻关基金资助项目(2009B560005)
河南省教育厅自然科学研究计划基金资助项目(2011B560008)
关键词
琅琊山水电站
发电机层
气流组织
模型试验
相似理论
速度场
温度场
Langya Mountain hydropower station
generator floor
air flow distribution
model test
theory of similarity
velocity filed
temperature field
