弹簧式安全阀启闭动态过程仿真与分析  

Simulation and Analysis of Opening and Closing Dynamic Process of Spring Safety Valve

作　　者：闫旭 徐娇 李忠刚[3] 于广滨 贾建波[1] YAN Xu;XU Jiao;LI Zhonggang;YU Guangbin;JIA Jianbo(School of Mechanical and Electrical Engineering,Changchun University of Science and Technology,Changchun 130012,China;Harbin Electric Power Station Valve Co.,LTD,Harbin 150046,China;School of Mechatronics Engineering,Harbin Institute of Technology,Harbin 150001,China)

机构地区：[1]长春理工大学机电工程学院,长春130012 [2]哈电集团哈尔滨电站阀门有限公司,哈尔滨150046 [3]哈尔滨工业大学机电工程学院,哈尔滨150001

出　　处：《哈尔滨理工大学学报》2024年第1期25-34,共10页Journal of Harbin University of Science and Technology

基　　金：黑龙江重大科技成果转化项目(CG20A006).

摘　　要：为研究安全阀的启闭性能,采用数学建模方法对其性能进行仿真分析。首先,根据安全阀工作原理将其内部主要活动部件分别建立成等效模型,然后采用数值模拟方法对部件刚度进行求解,再通过流体分析及数据拟合来获得阀瓣推力,建立数学公式并采用龙格库塔法进行方程求解,以获得启闭过程的运动曲线。结果表明,根据数学模型求解出的运动曲线趋势与安全阀实际运动趋势相同。由此可知,数学建模结果为安全阀性能分析提供理论依据。To study the opening and closing performance of safety valve,this paper uses mathematical modeling method to simulate and analyze its performance.First,according to the working principle of safety valve,the main moving parts inside the valve are established as equivalent models respectively.Then,the stiffness of the components is solved by numerical simulation method.Subsequently,the valve disc thrust is obtained by fluid analysis and data fitting.Mathematical formula is established and the equation is solved by Runge-Kutta method to obtain the movement curve of the opening and closing process.The results show that the trend of the motion curve solved by the mathematical model is the same as that of the safety valve.It can be seen that the results of mathematical modeling provide theoretical basis for the performance analysis of safety valve.

关 键 词：安全阀 启闭特性 数学模型 流体分析 运动仿真 

分 类 号：TH122[机械工程—机械设计及理论]