core leg

The tightening methods of legs in power transformer cores are introduced; A tightening device for large core leg is showed, and proved to be feasible by the formula derivation.

介绍了电力变压器铁芯柱的夹紧方式，提出一种用于大直径铁芯柱压紧装置，并用公式推导证明其可行。

The simultaneous injection into cold leg and hot leg for more reactor core safety during large break loss of coolant accident

大破口失水事故时冷热段同时安注反应堆堆芯会更安全

The results show that the reactor core can be cooled and boron precipitation can be prevented during the cold leg recirculation or both of cold and hot leg recirculation using low head injection system ( LHIS).

分析结果表明，低压安注系统在冷段注入再循环和在冷、热段同时注入再循环时能保证堆芯冷却，并防止硼酸结晶。

It is necessary to determine switchover time to simultaneous cold and hot leg safety injection during LOCA long-term core cooling.

在失水事故长期冷却过程中，必须确定安全注射系统从冷段注射切换到冷热段同时注射的切换时间。