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根据内置式控制棒水压驱动技术的特点,提出离心泵连续运行和隔膜泵间歇运行2种驱动回路设计方案,并从振动噪声和耗功的角度对2种方案进行计算、分析和比较。针对隔膜泵间歇运行方案,以某反应堆冷态调试工况为例,计算分析驱动机构水压缸泄漏流量和控制棒动作间隔时间对充水间隔时间和泵运行时间的影响。结果表明,离心泵连续运行方案适用于控制棒数目较多、泄漏流量较大的工况;当泄漏流量较小时,采用隔膜泵间歇运行方案,通过选择合适的隔膜泵流量和储水箱气水比,可减少泵运行时间、增加储水箱充水间隔时间,并减小振动、噪声以及降低功耗。
According to the characteristics of the hydraulic control technology of the built-in control rod, two kinds of driving circuit design schemes are proposed, which are the continuous operation of the centrifugal pump and the intermittent operation of the diaphragm pump. The two schemes are calculated, analyzed and compared from the perspective of vibration noise and power consumption. Aiming at the intermittent operation scheme of diaphragm pump, taking a cold condition of a reactor as an example, the influence of hydraulic cylinder leakage flow and control rod action interval on water filling interval and pump running time was calculated and analyzed. The results show that the continuous operation scheme of centrifugal pump is suitable for the condition that the number of control rods is large and the leakage flow is large. When the leakage flow rate is small, the intermittent operation scheme of diaphragm pump is adopted. By choosing the appropriate diaphragm pump flow rate and water- , Reducing pump run time, increasing tank fill intervals, and reducing vibration, noise, and power consumption.