冷冰;赵晶;
LENG Bing;ZHAO Jing;School of Mechanical Engineering,Shenyang University of Technology;

• 1:沈阳工业大学机械工程学院

摘要(Abstract)：

以研究高压核电闸阀内流场特性及流固耦合问题为目的,分别建立了稳态、瞬态流体动力学模型和流固耦合作用下的结构动力学模型。通过分析模拟过程中流体的压力和速度分布可知,在稳态和瞬态流动状态下,流体在流经阀体中腔部位时均会产生压力波动,并在底部形成涡流。在流固耦合作用下闸阀的静力学结构变形和应力分布满足刚度和强度要求。然而,在流固耦合作用下,闸阀的动力学结构变形和应力较大,并在阀体与导轨部位产生局部应力集中。可通过加大应力集中部位的圆角以减小应力集中的程度。
In order to study the flow field characteristics and fluid-structure interaction of the high pressure nuclear power gate valve,steady-state,transient fluid dynamics models and structural dynamic models under the action of fluid structure interaction were established,respectively.Through the analysis of the pressure and velocity distribution of the fluid in the simulation process,it can be known that in the steady-state and transient flow state,the fluid will produce pressure fluctuation when it flows through the cavity of the valve body,and forms eddies at the bottom.The static structural deformation and stress distribution of the gate valve meet the requirements of stiffness and strength under the fluid-structure interaction.However,under the action of fluid-structure interaction,the dynamic structural deformation and stress of the gate valve are larger,and local stress concentration occurs at the valve body and guide rail.The degree of stress concentration can be reduced by increasing the fillet of stress concentration part.

关键词(KeyWords)： 闸阀;高压;流固耦合;应力集中
gate valve;high pressure;fluid-structure interaction;stress concentration

Abstract:

Keywords:

基金项目(Foundation): 沈阳市重大工业专项（2019JH1/10100024）

作者(Authors): 冷冰;赵晶;
LENG Bing;ZHAO Jing;School of Mechanical Engineering,Shenyang University of Technology;

参考文献(References)：

• [1]SUETSUGU Y，SHIRAI M，SHIBATA K，et al.Development of a bellows chamber with a comb-type RF shield for high-current accelerators[J].Nuclear Instruments & Methods in Physics Research，2004，531(3)：367-374.
• [2]沈伟钢，于文婕.我国阀门行业现状与发展趋势[J].科技资讯，2013(17)：84.SHEN W G，YU W J.Fluid-solid coupling characteris-tics during spherical check valve closing process[J].Science & Technology Information，2013(17)：84.
• [3]张建华，徐相兰，王曙光.高温高压电站平板闸阀的设计与计算[J].阀门，2010(2)：1-4.ZHANG J H，XU X L，WANG S G.Design and calculation on high-temperature and high-pressure parallel slide gate valve[J].Valve，2010(2)：1-4.
• [4]赵云，胡光忠，文华斌，等.球形止回阀关闭过程流固耦合特性研究[J].流体机械，2019，47(5)：28-32.ZHAO Y，HU G Z，WEN H B，et al.Study on Fluid-solid coupling characteristics during spherical check valve closing process[J].Fluid Machinery，2019，47(5)：28-32.
• [5]杨煜兵，张春光，李上青，等.基于CFD的柱塞泵进排液阀流场分析[J].管道技术与设备，2019(3)：39-40.YANG Y B，ZHANG C G，LI S Q，et al.Flow field analysis of plunger pump combination valve based on CFD[J].Pipeline Technology and Equipment，2019(3)：39-40.
• [6]张顺锋，张胜，王强，等.基于动网格的液压滑阀流固耦合分析[J].液压与气动，2017(12)：60-64.ZHANG S F，ZHANG S，WANG Q，et al.Fluid-structure interaction analysis based on dynamic mesh for hydraulic spool valve[J].Chinese Hydraulics & Pneumatics，2017(12)：60-64.
• [7]叶正寅，张伟伟，史爱明.流固耦合力学基础及其应用[M].哈尔滨：哈尔滨工业大学出版社，2010.YE Z Y，ZHANG W W，SHI A M.Fundamentals of fluid-structure coupling and its application[M].HaRbin：HaRbin Institute of Technology Press，2010.
• [8]邢景棠，崔尔杰.流固耦合力学概述[J].力学进展，1997，27(1)：19-38.XING J T，CUI E J.A survey on the fluid solid interaction mechanics[J].Advances in Mechanics，1997，27(1)：19-38.
• [9]张建斌，冯玉林，范宜霖，等.锥阀空化现象及多相流耦合强度研究[J].流体机械，2018，46(2)：29-35.ZHANG J B，FENG Y L，FAN Y L，et al.Poppet cavitation and multiphase flow coupling strength study[J].Fluid Machinery，2018，46(2)：29-35.
• [10]李涛，王玉川，亢阳，等.椭圆柱绕流摆动流固耦合的数值模拟[J].排灌机械工程学报，2018，36(4)：307-312.LI T，WANG Y C，KANG Y，et al.Numerical simulation of fluid-solid rotating motion of rigid elliptic cylinder[J].Journal of Drainage and Irrigation Machinery Engineering，2018，36(4)：307-312.
• [11]朱洪来，白象忠.流固耦合问题的描述方法及分类简化准则[J].工程力学，2007(10)：100-107.ZHU H L，BAI X Z.Description method and simplified classification rule for fluid-solid interaction problems[J].Engineering Mechanics，2007(10)：100-107.
• [12]FARHAT C，LESOINNE M，TALLEC P L.Load and motion transfer algorithms for fluid/structure interaction problems with non-matching discrete interfaces：Momentum and energy conservation，optimal discretization and application to aeroelasticity[J].Computer Methods in Applied Mechanics and Engineering，1998，157(1-2)：95-114.
• [13]刘建瑞，李昌，刘亮亮，等.高温高压核电闸阀流固热耦合分析[J].流体机械，2012，40(3)：16-20.LIU J R，LI C，LIU L L，et al.Fluid solid thermal coup-ling analysis of high-temperature and high-pressure nuclear power gate valve[J].Fluid Machinery，2012，40(3)：16-20.