控制棒水压驱动系统水压缸降压过程理论分析

发布时间：2018-07-28 17:10

【摘要】：控制棒水压驱动技术是清华大学核能与新能源技术研究院具有自主知识产权的一项新型发明专利技术。水压缸属于该项技术的关键部件,而水压缸降压过程直接影响水压缸的复位,水压缸的性能直接影响控制棒水压驱动技术的运行性能。本文建立了水压缸降压理论模型,对该过程进行了分析;根据实验运行工况,计算得出了水压缸运行性能,并利用实验数据验证了计算结果。计算结果表明:在降压过程中,内套位移减小,速度逐步减小,直到停止运动;由于缸内压力减小,缸内和缸外的压差减小,密封环泄漏流速减小。缸内压力模型能提供所需的物理量,为水压缸和驱动机构运动机理分析提供了理论基础。
[Abstract]:The control rod hydraulic drive technology is a new invention patent technology with independent intellectual property rights in the Institute of Nuclear and New Energy Technology of Tsinghua University. The hydraulic cylinder belongs to the key part of the technology, and the pressure reduction process of the hydraulic cylinder directly affects the reset of the hydraulic cylinder, and the performance of the hydraulic cylinder directly affects the performance of the control rod hydraulic drive technology. In this paper, a theoretical model of hydraulic cylinder depressurization is established, and the process is analyzed. According to the operating conditions of the experiment, the operating performance of the hydraulic cylinder is calculated, and the calculated results are verified by the experimental data. The results show that the displacement of the inner sleeve decreases and the velocity decreases gradually until the movement stops, and the leakage velocity of the seal ring decreases because of the decrease of the pressure in the cylinder and the pressure difference between the cylinder and the outside of the cylinder. The in-cylinder pressure model can provide the required physical quantity and provide a theoretical basis for the analysis of the motion mechanism of the hydraulic cylinder and the driving mechanism.
【作者单位】：清华大学核能与新能源技术研究院先进反应堆工程与安全教育部重点实验室;
【分类号】：TL351.5

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