直流式蒸汽发生器壳侧局部阻力特性试验研究

The Experimental Study on Resistance Characteristics of Shell Side of Once-through Steam Generator

本文基于模化试验方法研究了直流式蒸汽发生器壳侧局部阻力特性,测得了不同工况下试验体总体压降与分段压降,以及各复杂关键部件如进出口接管、均流格栅、进出口流量分配罩等位置的流量、温度、压力和差压数据,拟合出了蒸汽发生器试验体总阻力系数与雷诺数的关系式,本文试验结果可为蒸汽发生器CFD计算方法提供验证和支撑。

In this paper,the local resistance characteristics of the shell side of the once-through steam generator were studied based on the scaling analysis method.The test equipment overall pressure drop and segmented pressure drop under different working conditions were measured,as well as the flow rate,temperature,pressure and pressure drop data of each complex key component,such as the inlet and outlet nozzles,the flow board equalization and the inlet and outlet flow distribution equipment.The relationship between the total resistance coefficient of the steam generator test body and the Reynolds number was fitted.The results of this paper could provide verification and support for the CFD calculation method of the once-through steam generator.