本文采用理论计算与数值仿真方法对滑油压力控制阀进行细致的流动特性分析。在给定流量或给定进出口压差条件下，通过对不同开度下阀内流场的分析得出：进出口压差确定时，流量与开度基本呈线性关系；流量确定时，进出口压差与开度呈四次曲线关系。二级节流降压有效地减小阀内滑油的压降与湍流度，防止滑油发生空化、乳化现象并减小滑油对滑阀的冲蚀。
Theoretical calculation and numerical simulation are carried out to analyze flow characteristics of lubricating oil control valve. For given rate of flow or given pressure difference between inlet and outlet, through the analysis of the internal flow field of the valve under different open degrees, it came to the conclusion that when the pressure difference between the import and export is determined, the flow rate is linear with valve opening; when the flow rate is determined, the pressure difference and valve opening is biquadratic curve. two-step throttle can effectively reduce the pressure drop and turbulence of the lubricating oil in the valve, besides it can avoid the cavitation and emulsification of lubricating oil and reduce the erosion of lubricating oil to the spool valve.
2019,41(5): 105-108 收稿日期：2018-03-25
DOI：10.3404/j.issn.1672-7649.2019.05.021
分类号：U672.2
作者简介：倪林森(1990-),男,硕士研究生,主要从事汽轮辅机设计
参考文献：
[1] 谢雄峰. 汽轮发电机组润滑油系统的现状与改进[J]. 中国电力, 1997(4):24-25 XIE Xiong-feng. Lubricating oil system of steam turbine-generator set-present status and modification[J]. Electric Power, 1997(4):24-25
[2] 陆培文. 实用阀门设计手册[M]. 北京:机械工业出版社, 2012.
[3] 陶正良, 蔡定硕, 严春雷. 电站调节阀内流场的三维数值模拟及实验研究[J]. 工程热物理学报, 2003, 24(1):63-65 TAO Zhen-liang, CAI Ding-shuo, YAN Chun-lei. Three dimensional numerical simulation and experimental study on fluid field of control valve in power station[J]. Journal of Engineering Thermophysics, 2003, 24(1):63-65
[4] 余晓明, 茅忠明, 孔彪龙. 减压阀性能试验与内部流场数值计算[J]. 上海理工大学学报, 2009, 31(2):183-189 YU Xiao-ming, MAO Zhong-ming, KONG Biao-long. Computer assistant test and numerical simulation analysis for pressure reducing valve[J]. Journal of University of Shanghai for Science and Technology, 2009, 31(2):183-189
[5] 李哲, 魏志军, 张平. 自力式调压阀变开度流场及特性分析[J]. 推进技术, 2008, 29(5):622-626 LI Zhe, WEI Zhi-jun, ZHANG Pin. Analysis of characteristic and flow field of self operated pressure-regulating vlave[J]. Journal of Propulsion Technology, 2008, 29(5):622-626
[6] 李哲, 魏志军, 张平. 调压阀内流场数值模拟及动态特性分析[J]. 北京理工大学学报, 2007, 27(5):263-263 LI Zhe, WEI Zhi-jun, ZHANG Pin. Internal flow field numerical calculation and dynamic characteristic study of pressure regulating valve[J]. Transaction of Beijing Institute of Technology, 2007, 27(5):263-263
[7] 訚耀保, 沈力, 赵艳培, 等. 基于CFD的车载高压气动减压阀流场分析[J]. 流体机械, 2010, 38(1):23-26 YIN Yao-bao, SHEN Li, ZHAO Yan-pei. Research on flow field of high pressure reducing valve of hydrogen[J]. Fluid Machinery, 2010, 38(1):23-26
[8] 廖义德, 刘银水, 黄艳, 等. 二级节流阀抗气蚀性能的实验研究[J]. 流体机械, 2010, 38(1):23-26 LIAO Yi-de, LIU Yin-shui, HUANG Yan. Experimental research on anti-cavitation characteristics of two-step throttle in water Hydraulic system[J]. Fluid Machinery, 2010, 38(1):23-26
[9] 明赐东. 调节阀应用1000问[J]. 自动化与仪表, 2006(4):34-34 MING Ci-dong. 1000 questions on the application of regulating valve[J]. Automation and Instrumenation, 2006(4):34-34
[10] 张宝峰. 多级节流孔板的设计计算[J]. 陕西电力, 2005, 33(5):27-28 ZHANG Bao-feng. Design and calculation of multistage throttle orifice[J]. Shaanxi Electric Power, 2005, 33(5):27-28
[11] 孙淮清, 王建中. 流量测量节流装置设计手册[M]. 化学工业出版社, 2005.
[12] 胡宗成, 高怡秋, 杨懿. 凝水系统水位调节阀流量系数特性研究[J]. 舰船科学技术, 2013, 35(10):65-68 HU Zong-cheng, GAO Yi-qiu, YANG Yi. Research on flow coefficient of level control valve in condensate water system[J]. Ship Science and Technology, 2013, 35(10):65-68
