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叙述了涡轮流量计(P2004F—52H—E)、加热段(内含Dg40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、14MPa: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。
Described the turbine flowmeter (P2004F-52H-E), heating section (including a Dg40 angle valve), the heating section of the outlet to the vertical section of the upstream (including the level of 90 ° and 180 ° elbow each one, vertical 90 ° and 180 ° elbows and a straight pipe section of about 2.5m) and the upstream of the vertical straight pipe section to the heat exchanger inlet (including two vertical 90 ° elbows, one horizontal 90 ° elbow and about 2.5m straight pipe sections) and the Dg40 angle valve , Dg40 direct-flow valve and inverted U-tube heat exchanger under natural circulation and forced circulation conditions, and the experimental results under these two conditions were compared. The comparison results show that the resistance characteristics of the heating section, the impeller of the turbine and the hot section are the same under the natural circulation and the forced circulation. The experimental parameters range: pressure P = 10,14MPa: Reynolds number Re = 10 ~ 3 ~ 1.4 × 10 ~ 5; mass flow rate G = 72.4 ~ 313kg / (m ~ 2 · s). The results are available for safety design of nuclear reactors.