Rod drop

Based on the principle of hydraulic control rod driving system(HCRDS), the paper gives a new scram method, which makes the inside pressure of step cylinder discharge, to solve the scram problem of HCRDS in control rod hang up accident and inversion conditions, and some experiments were caried out with the 1∶1 experimental loop of the HCRDS for the 200 MW nuclear heating reactor(NHR200).

结果表明:控制棒的落棒速度明显提高,棒外与棒内差压在卸压一定时间后能够达到较高的数值。

The experimental results of stepup, stepdown and scram in normal condition and depressurization condition indicate that control rod can stepup, stepdown and scram normally in depressurization condition.

利用200MW低温核供热堆水力控制棒驱动系统的1∶1实验台架模拟系统失压工况,进行控制棒步升、步降、开阀落棒及关泵开阀落棒实验,并与正常工况下的提棒、落棒的实验结果进行比较。

Experimental Study on the Scram of Electromagnetic Movable Coil Control Rod Drive Mechanism;

可移动线圈电磁驱动控制棒快速落棒实验研究

Control rod is a key safety control system for nuclear reactors, with the scram time parameters being crucial to reactor safety.

因此,进行了可移动线圈电磁驱动控制棒机构在不同流速下的快速落棒实验;用VC编写的软件控制了实验过程并记录了实验数据;分析了快速落棒实验的数据;得到了各种工况的落棒时间,此外还分析了造成落棒时间差异的原因。

Control rod is a key safety control system for nuclear reactors, with the scram time parameters being crucial to reactor safety.

控制棒的落棒在反应堆控制中是一个十分重要的方面,尤其是落棒时间这个参数。

Measurement of ARI rod worth by rod drop-off;

落棒法测量所有控制棒全插时的棒价值