直动式溢流阀流场特性分析与实验研究
Theoretical Analysis and Experimental Study of Flow Field Characteristics in the Direct Relief Valve
宋颜和 1邱铁超 2王占齐 1周文涛 1陈馨 1张作山 1郝跃跃3
作者信息
- 1. 燕山大学 机械工程学院,河北 秦皇岛 066004
- 2. 燕山大学 机械工程学院,河北 秦皇岛 066004;辽宁工业大学 机械工程与自动化学院,辽宁 锦州 121001
- 3. 广州汇通精密液压有限公司,广东 广州 511300
- 折叠
摘要
为分析阀座锥角对流场空化特性的影响规律,以某直动式溢流阀为研究对象,基于运动微分方程建立直动式溢流阀理论模型,利用 CFD 软件对不同阀座锥角下的气液两相流特性进行仿真.理论计算结果、仿真模拟结果与实验测试结果吻合度较好,理论计算误差为 1.88%、仿真误差为 3.06%.研究结果表明:流体在阀座锥角处会形成局部空化,诱导直动式溢流阀产生噪声,通过改变阀座锥角角度可以有效改善空化现象.相关研究成果可为直动式溢流阀中阀座锥角的设计提供参考.
Abstract
To analyze the effect of the cone angle of the valve seat on the cavitation characteristics of the flow field,this paper takes a direct relief valve as the object.A theoretical model of direct relief valve is established based on differential equations of motion,and the gas-liquid two-phase flow characteristics under different valve seat cone angles were simulated by CFD software.The theoretical calculation and simulation results are in good agreement with experimental results,and the theoretical calculation deviation is 1.88%,the simulation deviation is 3.06%.The results show that the fluid will form local cavitation at the cone angle of valve seat,which will induce the noise of direct relief valve,and the cavitation phenomenon can be effectively improved by changing the cone angle of valve seat.The relevant research results can provide reference for the design of cone angle of valve seat in the direct relief valve.
关键词
直动式溢流阀/理论建模/空化优化Key words
direct relief valve/theoretical modeling/cavitation optimization引用本文复制引用
出版年
2024
NETL
NSTL
万方数据