单座调节阀流致振动仿真模拟分析

Simulation Analysis of Flow-Induced Vibration in Single-Seat Control Valve

单座调节阀是过程工业系统中的重要元部件,因其常用于高温高压等工况下,其阀体结构在工作时会出现振动。严重的振动现象不仅会影响单座调节阀的调节能力,还会导致阀门关键结构的损坏。本文将提供一种基于ANSYS Transient Structural模块的单向瞬态流固耦合仿真模拟方法的模拟步骤,并分析单座调节阀流致振动强度与阀门压力工况之间的影响关系。结果表明单座调节阀流致振动强度随着阀门进出口压力差的降低而减小。本文为调节阀流致振动的影响因素分析提供了方法参考。

The single-seat control valve is a crucial component in process industry systems, often operating under high-temperature and high-pressure conditions, leading to vibrations in the valve body during operation.Severe vibration not only affects the regulation capability of the single-seat control valve but can also result in damage to key valve structures.This paper presents a simulation approach based on the ANSYS Transient Structural module for one-way transient fluid-structure interaction.It outlines the simulation steps and analyzes the relationship between the intensity of flow-induced vibrations in the single-seat control valve and the valve′s pressure conditions.The results indicate that the intensity of flow-induced vibrations decreases as the pressure difference between the valve′s inlet and outlet decreases.This study provides a methodological reference for analyzing the factors influencing flow-induced vibrations in control valves.