【摘要】 叙述了涡轮流量计(P2004F-52H-E)、加热段(内含Dg4O角阀一个)、加热段出口至垂直管段上游(内含水平90°和180°弯头各一个,垂直90°和180°弯头各一个及2.5m左右直管段)和垂直直管段上游至换热器入口(内含两个垂直90°弯头,一个水平90°弯头及2.5m左右直管段)以及Dg40角阀、Dg40直通阀和倒U形管换热器在自然循环和强迫循环条件下的阻力特性,并将这两种条件下的实验结果进行了比较。比较结果表明,在加热段和涡轮以及热段阻力件自然循环和强迫循环条件下的阻力特性是一致的。实验的参数范围为:压力p=10 ～15MPa;雷诺数Re=10~3～1.4×10~5;质量流速G=72.4～313kg/(m~2·s)。研究结果可供核反应堆安全设计参考。更多还原

【Abstract】 The resistance characteristics of piping components such as turbine, bundle test section, valves and heat exchanger under natural circulation condition are presented. Two sets of piping elements connected in series are also tested. One includes two horizontal elbows with angle of 90 and 180 respectively and a straight tube of 2. 5-meter long. The other includes two vertical elbows with angle of 90,a horizontal elbow with angle of 90 and a straight tube of 2. 5-meter long. The experimental data obtained under natural circulation condition are compared with those obtained under forced circulation condition. The results show the loss characteristics of the above piping components, except for heat exchanger, are consistent both in natural circulation condition and in forced circulation condition. The tests are conducted over the following ranges of the parameters; pressure p=10-15MPa;Reynolds number Re =103-1. 4X 105;mass velocity G =72. 4-313kg/(m2.s). The results can be used for safety design of reactors.更多还原