船舶推进用电机二次蒸发冷却实验研究

Experimental research of double evaporation-cooling technology in ship propulsion motor

本文首先介绍了电机的浸润式自循环蒸发冷却工作原理,接着根据船舶推进用电机的冷却要求提出了二次蒸发冷凝的方案并且与常规的蒸发冷凝进行了对比实验,实验结果表明二次蒸发冷凝的方案是可行的,能够满足船舶推进用电机的冷却技术要求。扩展了蒸发冷却技术应用的范围。

The principle of close-loop-self-circulating (CLSC) evaporation-cooling is introduced firstly, then the idea of double evaporation-cooling is presented according to the cooling requirements of a ship propulsion motor. Two models of a ship propulsion motor using the evaporation-cooling technology are built, one uses the normal evaporation-cooling technique and the other uses the double evaporation-cooling technique. The experiment using R113 as the coolant is done firstly on the normal evaporation-cooling model. Then there are some experiments on the double evaporation-cooling model. R113 is used as the primary coolant in the stator cavity and R113,R11 and R123 are used as the secondary coolant respectively in the special condenser. The experimental results show that double evaporation-cooling is operable and can meet the cooling requirements of the ship propulsion motor. So the evaporation-cooling technology can have a wider application.