本文在广泛的蒸汽压力和过冷水温度范围内,针对饱和蒸汽通过不同出口直径的喷嘴在过冷水中浸没射流凝结引起的压力冲击特性进行了实验研究,测量得到了不同轴向位置和径向位置的冲击压力,并分析了入口蒸汽压力,过冷水温度和喷嘴出口直径对冲击压力的影响规律。结果表明冲击压力主要受入口蒸汽压力和过冷水温度的影响;同时,当汽水参数以及无量纲轴向和径向距离相同时,不同出口直径的喷嘴对应的冲击压力变化很小,从而表明喷嘴出口直径对压力冲击影响很小。
An experiment was carried out to study the impact pressure characteristic induced by steam jet condensation in water for different nozzle diameters in the wide range of pressures and water temperatures.The pressures at various axial and radial distances were measured,and the influence of nozzle diameter on the impact pressure was analyzed.The results indicated that the pressure was mainly affected by inlet steam pressure and water temperature.Moreover,the nozzle diameter hardly affected the pressure at the same parameters of steam and water as well as the dimensionless axial and radial distances.
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