斜瓣式止回阀启闭过程的动态特性分析  

Fluid Dynamic Characteristics Analysis of Tilting Check Valves in Opening and Closing Process

作　　者：姚怀宇 汝强 徐毅翔 钱锦远[1] 金志江[1] YAO Huai-yu;RU Qiang;XU Yi-xiang;QIAN Jin-yuan;JIN Zhi-jiang(Institute of Process Equipment,Zhejiang University;CNNC SUFA Technology Industry Co.,Ltd.)

机构地区：[1]浙江大学化工机械研究所 [2]中核苏阀科技实业股份有限公司

出　　处：《化工机械》2022年第1期58-64,共7页Chemical Engineering & Machinery

基　　金：国家自然科学基金项目(52175067);浙江省重点研发计划项目(2021C01021)。

摘　　要：为加速实现先进压水堆用斜瓣式止回阀的国产化,提升我国核电业的自主开发能力,利用动网格技术模拟研究了斜瓣式止回阀阀瓣启闭过程中的动态响应特性。结果表明:低于50%THA(热耗率验收)工况下,增加工况参数对启闭时间、最大角速度和阀瓣受到的最大压力的提升效果较小;止回阀管道的流量应高于1.5%THA工况下的流量,以避免阀瓣与阀座反复碰撞。For purpose of accelerating localization of the tilting check valve for advanced pressurized water reactor,the dynamic mesh technology was adopted to study dynamic response characteristics in the opening and closing process of the tilting check valve.The results show,under the condition of less than 50%THA(turbine heat-acceptance),the increasing operating parameters has little effect on the opening and closing time,the maximum angle speed and the maximum pressure value of the valve core;in order to avoid the collision between the valve core and valve seat,the flow rate of check valve pipe should be higher than the flow valve under the 1.5%THA operating conditions.

关 键 词：斜瓣式止回阀 动网格 动态特性 THA工况 最小流量 

分 类 号：TQ055.81[化学工程]