doi:10.16186/j.cnki.1673-9787.2020.4.9

Received:2019/12/20

Revised:2020/02/19

Published:2020/07/15

Feasibility analysis of the fluid-induced vibration experimental prototypefor evaporator components of sodium-cooled fast reactor

ZHOU Lijun1, WU Zhiguang1, LU Yuan1, XIAO Changzhi1,2

1.China Institute of Atomic Energy， Beijing  102413 ， China；2.Western Advanced Nuclear Energy Research Institute of China， Xi’an  710049 ， Shaanxi， China

Abstract:The steam generator of sodium-cooled fast reactor （ SFR） was designed by straight tube structure. It was consisted of evaporator and superheater components. For the steam generator， the coolant liquid metal sodium flowed through the shell-side，and the water/steam was located at tube-side. When water was heated to superheated steam，it inevitably experienced boiling and heat transfer deterioration process. Two-phase flow instability phenomenon was occurred in tube-side of steam generator， and this easily caused series of operational and safe issues if the components were poorly designed. The feasibility analysis of the evaporator component fluid- induced vibration experimental prototype was focused on. The main conclusions were as follows：The important similarity criterions related to experimental prototype design were deduced by similarity analysis method ；A basic simplified structure of experimental prototype was designed by comparing with the prototype components；Flow field characteristic and modal characteristics were simulated by constructing a CFD model， and the feasibility of fluid-induced vibration experimental prototype was furtherly demonstrated；The feasibilities of ten groups of components were proved，and it provided the theoretical basis for subsequent superheater experimental prototype design.

Key words:sodium-cooled fast reactor;evaporator component;flow-induced vibration;similarity analysis;feasibility analysis

钠冷快堆蒸发器流致振动试验件可行性分析_周立军.pdf