动态流量平衡阀启闭过程中的线弹性不等值力

李树勋; 徐娟娟; 范宜霖; 徐晓刚; 叶琛

doi:10.3969/j.issn.0258-2724.2015.06.025

动态流量平衡阀启闭过程中的线弹性不等值力

doi: 10.3969/j.issn.0258-2724.2015.06.025

基金项目:

国家自然科学基金资助项目(51349008)

甘肃省高校基本业务费资助项目(20146302)

详细信息

作者简介:
李树勋(1973-),男,教授,研究方向为控制类阀门,E-mail:gdlishuxun@126.com

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- 被引次数: 0
出版历程
- 收稿日期: 2014-12-11
- 刊出日期: 2015-12-25

Linear Elastic Nonequivalence Force for Dynamic Flow Balance Valve in Opening and Closing Process

摘要

摘要: 为了解决动态流量平衡阀流量控制精度无法达到要求的问题,建立了动态流量平衡阀动力学模型以及阀芯运动方程,数值模拟了相同口径和不同口径平衡阀阀芯处于不同位移下的三维流场模型,对比试验与数值模拟的阀芯位移误差和压差位移流量特性曲线,获得了线弹性不等值力变化规律,确定了不等值力修正系数,并优化了开孔型线.研究结果表明:通过引入线弹性不等值力修正系数,优化阀芯可变开孔后,减小了阀芯实际位移与理论位移间的误差,使试验与数值模拟的流量特性曲线趋于一致,并使流量控制精度满足5%的误差要求.
- 平衡阀 /
- 线弹性不等值力 /
- 流量控制精度 /
- 数值模拟
Abstract: In order to solve the problem that the flow rate control of a dynamic flow balance valve cannot meet the precision requirement, a dynamic model for the balance valve and the motion equation of the valve core were developed. Then, the three-dimensional flow model of the valve core with the same diameter and different diameters, both under different displacements, were solved by numerical simulation. Through comparisons in terms of the displacement error and the flow characteristic curve between the actual test and numerical simulation, the variation rule and correction factor of the linear elastic nonequivalence force were obtained, and the opening profile line was optimized. The results show that after the variable opening of the valve core is optimized by the correction factor of linear elastic nonequivalence force, the displacement error of the valve core between test and theory is reduced; the flow characteristic curve obtained by numerical simulation is consistent with the one obtained by actual test, and the flow control precision can satisfy the error requirement of less than 5%.
- balance valve /
- linear elastic nonequivalence force /
- flow rate control /
- numerical simulation

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参考文献(15)

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文章访问数: 663
HTML全文浏览量: 71
PDF下载量: 340
被引次数: 0

动态流量平衡阀启闭过程中的线弹性不等值力

doi: 10.3969/j.issn.0258-2724.2015.06.025

作者简介: 李树勋(1973-),男,教授,研究方向为控制类阀门,E-mail:gdlishuxun@126.com

计量

出版历程

Linear Elastic Nonequivalence Force for Dynamic Flow Balance Valve in Opening and Closing Process

计量

出版历程

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作者简介:
李树勋(1973-),男,教授,研究方向为控制类阀门,E-mail:gdlishuxun@126.com