【摘要】 <正> 多用试验本体用于反应堆冷态驱动线试验,它是一个多节组合的不锈钢筒体,用以支承、包容、固定被试验的结构件——全模拟的燃料组件、控制棒组件、导向组件及驱动机构。多用试验本体与以往的同类试验容器不同之处在于它是多段筒节组合而成,每段筒节之间都有相同结构尺寸的阴阳法兰,并使用同一规格的橡胶密封结构。因此,试验本体的轴向尺寸可由增减筒节的方法来加长或缩短,以使其满足被试验件在轴向尺寸方面的要求。试验本体内的通道可以根据不同类型燃料组件的断面尺寸进行更换。多用试验本体的另一个特点是采用偏心调节的机构,以模拟反应堆上任何一条驱动线的错对中量。该机构位于更多还原

【Abstract】 A multipurpose testing SS vessel is made up of multiple cylinders with flanges. Simulated fuel assemblies, control element assemblies, control rod guide tubes, and control rod drive mechanism are housed, supported and installed in this vessel. Every section of the vessel is composed of the same connection flange and O sealing washer. The axial dimension of the vessel can be extended or reduced so as to meet test requirements. The baffler, which forms the plenum of the vessel, can be replaced in accordance with the type of fuel assemblies. The vessel features a top eccentric structure that enables researchers to adjust the control rod drive line (CRDL). The distance between the CRDL and the shaft of an eccentric ring in the structure is 8 mm. The largest offset of 16 mm can be attained when an eccentric ring revolves 180 degrees. The vessel with multiple sections is a very important facility for cold testing and research of CRDL. The test results will be -used as the basis in the design and analysis for every component of reactor CRDL.更多还原