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
闫旭 1徐娇 2李忠刚 3于广滨 4贾建波1
作者信息
- 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
- 4. 长春理工大学 机电工程学院,长春 130012;哈尔滨工业大学 机电工程学院,哈尔滨 150001
- 折叠
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.
Abstract
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Key words
safety valve/opening and closing characteristics/mathematical model/fluid analysis/kinematic simulation引用本文复制引用
基金项目
黑龙江重大科技成果转化项目(CG20A006)
出版年
2024
NETL
NSTL
万方数据