卧式蒸发冷却电机冷却系统的设计  

Design problems of cooling system in horizontal evaporative cooling generator

作　　者：蔡静[1] 余顺周[1] 顾国彪[1] 

机构地区：[1]中国科学院电工研究所,北京100080

出　　处：《哈尔滨工业大学学报》2006年第10期1789-1792,共4页Journal of Harbin Institute of Technology

摘　　要：卧式大型发电机采用蒸发冷却方式时,矩形线棒中流体的流动形式属于泵强迫循环流动沸腾,从流道的形状、流体的组成、加热的方式及流动的方式等多个方面叙述了卧式蒸发冷却电机矩形线棒内两相流动的特点,以及卧式蒸发冷却电机矩形线棒内两相流动的特殊性,并提出了新观点:仅由出口处气相含量的多少和工作压力来描述两相流动的压力降是不全面的,还应考虑两相流动段的长度,指出:应重视卧式蒸发冷却电机流量与热负荷的匹配问题以及流量与泵匹配的问题,尽快开展这方面的研究.In the hollow stator bar in horizontal evaporative cooling generator, the cooling method is forced boiling convection. The article states the characters of the two - phase flow in the hollow bar from several aspects： tube shape, liquid composition, heating fashion and flow style, etc, and puts forward new point： it is not enough to confirm the pressure loss of the two phase flow in heated tube only by the exit vapor quantity and work pressure, and the length of the two phase flow must be considered. The article points out that the matching of the flux and heat load and the matching of the flux and pump should be thought much of.

关 键 词：卧式蒸发冷却电机 冷却系统 气液两相流动 

分 类 号：TM31[电气工程—电机]