煤矿阻爆快速蝶阀系统静力学设计及其动态特性仿真分析

摘要

针对快速蝶阀系统动态特性,采用计算流体力学方法模拟了爆破冲击造成的抽采管道流速以及蝶阀表面压力；依据该计算结果,进一步通过有限元方法对蝶阀阀板进行了静力学设计和校核,然后采用液压机械综合仿真软件AMEsim进行了整体系统的动力学仿真,得到了蝶阀系统开启和快速关闭的动态特性.通过综合力学分析和优化设计,蝶阀系统快速关断仿真和试验时间在35 ms以内,性能完全满足要求.%Aimed at examining the mechanical properties of the high-speed butterfly valve system,gas velocity in the gas drainage pipe and pressure on the valve surface after explosions were simulated by the Computational Fluid Dynamics (CFD) method. Based on the results of the simulation, the butterfly valve was designed and verified using the finite element method. AMEsim software simulated the dynamic properties of the triple offset butterfly valve system, a-chieving the fast open and shut-off characteristic of the valve. A new triple offset butterfly valve system was developed through mechanical analysis and design optimization, the fast shut-off time of less than 35 minutes was achieved through simulation and experiment.