王佳琪,何世权,喻临风,张锦,刘帅帅
WANG Jiaqi,HE Shiquan,YU Linfeng,ZHANG Jin,LIU Shuaishuai

• 1:南京工业大学机械与动力工程学院

摘要(Abstract)：

针对造纸厂等企业中含有固体颗粒、纤维工况的流体介质对阀门冲蚀磨损问题，以V型调节球阀为研究对象，对中阀芯锥角30°的V型球阀进行阀芯优化，旨在为了减少冲蚀磨损进而设计出两种不同结构流通面积的阀芯锥角。对比分析阀芯锥角分别为30°，60°，90°的V型球阀，应用CFD软件对其内部流场进行三维数值模拟，通过模拟计算得到流量特性曲线、流道内的速度分布云图、压力分布云图和速度矢量图。结果表明，优化后的阀芯结构相比初始结构，阀内最大压力由535.43 kPa降至492.70 kPa逐渐稳定，阀内最低压力由低于饱和蒸汽压的-242.67 kPa升至150 kPa，减少了空化现象；且速度更加均匀稳定，阀内高速流通区域平均速度由27.77 m/s~2降至19.53 m/s~2；提高了调节性能和流通稳定性，同时延长了阀门的使用寿命。
For the problem of valve erosion and wear caused by the fluid medium containing solid particles and fibers in paper mills and other enterprises,by taking the V-shaped regulating ball valve as the research object, the valve core of V-shaped ball valve with valve core cone angle of 30° was optimized with a view to designing two different valve core cone angles with different structural flow areas in order to reduce erosion wear.The V-shaped ball valves with valve core cone angles of 30°,60°,and 90° were compared and analyzed,and the CFD software was used to carry out three-dimensional numerical simulation of the internal flow field.The flow characteristic curve,the velocity distribution nephogram in the flow channel,the pressure distribution nephogram and velocity vector diagram were obtained through simulation calculation.The results show that,compared with the initial structure,for the optimized valve core structure,the maximum pressure in the valve is gradually stabilized from 535.43 k Pa to 492.70 k Pa,and the minimum pressure in the valve is increased from -242.67 k Pa,which is lower than the saturated vapor pressure,to 150 k Pa,which reduces the cavitation phenomenon.And the speed is more uniform and stable,the average speed of the high-speed flow area in the valve is reduced from 27.77 m/s~2 to 19.53 m/s~2;the adjustment performance and flow stability are improved,and the service life of the valve is extended at the same time.

关键词(KeyWords)： V型球阀;阀芯优化;流通面积;流量特性;数值模拟
V-shaped ball valve;valve core optimization;flow area;flow characteristics;numerical simulation

Abstract:

Keywords:

基金项目(Foundation): 江苏省研究生实践创新计划(自然科学类)(SJCX21＿0524)

作者(Author): 王佳琪,何世权,喻临风,张锦,刘帅帅
WANG Jiaqi,HE Shiquan,YU Linfeng,ZHANG Jin,LIU Shuaishuai

参考文献(References)：

• [1]陆培文.阀门设计入门与精通[M].北京：机械工业出版社，2009.LU P W.Introduction and mastery of valve design[M].Beijing：China Machine Press，2009.
• [2]杨源泉.阀门设计手册[M].北京：机械工业出版社，1992.YANG Y Q.Valve design manual[M].Beijing：China Machine Press，1992.
• [3]刘洁.调节阀门阀芯结构对流量特性影响分析[J].科技传播，2016，8(9)：177-178.LIU J.Analysis of the influence of regulating valve spool structure on flow characteristics[J].Science and Technology Communication，2016，8(9)：177-178.
• [4]孙丰位.V型调节球阀阀芯结构与等百分比流量特性分析[D].兰州：兰州理工大学，2012.SUN F W.V-type regulating ball valve core structure and equal percentage flow characteristics analysis[D].Lanzhou：Lanzhou University of Technology，2012.
• [5]房鑫，王泓晖，田晓洁，等.基于数值模拟的水下节流阀早期冲蚀故障特征分析[J].机电工程，2021，38(11)：1417-1423.FANG X，WANG H H，TIAN X J，et al.Analysis of early erosion fault characteristics of subsea choke valve based on numerical simulation[J].Journal of Mechanical & Electrical Engineering，2021，38(11)：1417-1423.
• [6]刘华，汪成文，赵斌.基于泵阀协调控制的电液位置伺服节能控制研究[J].机电工程，2020，37(9)：1039-1044.LIU H，WANG C W，ZHAO B.Energy saving control of electro hydraulic position servo based on pump valve coordinated control[J].Journal of Mechanical & Electrical Engineering，2020，37(9)：1039-1044.
• [7]陈亚飞，顾卫国，王德忠，等.球型调节阀关阀水锤效应的试验研究与数值计算[J].排灌机械工程学报，2021，39(10)：1027-1032.CHEN Y F，GU We G，WANG D Z，et al.Experimental study and numerical calculation of water hammer effect of closing valve of ball type regulating valve[J].Journal of Drainage and Irrigation Machinery Engineering，2021，39(10)：1027-1032.
• [8]王冠，邓建飞，寇琳媛，等.多级降压调节阀阀芯流阻特性及参数分析[J].流体机械，2021，49(12)：70-77.WANG G，DENG J F，KOU L Y，et al.Analysis of flow resistance characteristics and parameters of multistage step-down control valve spool[J].Fluid Machinery，2021，49(12)：70-77.
• [9]陈金霞.V型调节球阀球芯结构及应用特点分析[J].宁夏机械，2010(3)：20-26.CHEN J X.Analysis of the structure and application characteristics of the ball core of the V-type regulating ball valve[J].Ningxia Machinery，2010(3)：20-26.
• [10]陆培文.实用阀门设计手册[M].北京：机械工业出版社，2002.LU P W.Practical valve design manual[M].Beijing：Machinery Industry Press，2002.
• [11]LISOWKI E，FILO G.Analysis of a proportional control valve flow coefficient with the usage of a CFD method[J].Flow Measurement and Instrumention，2017，53：269-278.
• [12]张师帅.计算流体动力学及其应用——CFD软件的原理与应用[M].武汉：华中科技大学出版社，2011.ZHANG S S.Computational fluid dynamics and its applications——principles and applications of CFD software[M].Wuhan：Huazhong University of Science and Technology Press，2011.
• [13]张立强，焦喜娟，严浩，等.V型调节球阀内部流场分析及空化预测[J].兰州理工大学学报，2019，45(5)：64-65.ZHANG L Q，JIAO X J，YAN H，et al.Internal flow field analysis and cavitation prediction of V-shaped regulating ball valve[J].Journal of Lanzhou University of Technology，2019，45(5)：64-65.
• [14]赵杰，姚冉，王雯昕.往复压缩机管路系统气固耦合振动特性研究[J].流体机械，2021，49(12)：78-85.ZHAO J，YAO R，WANG W X.Study on the vibration characteristics of gas-solid coupling in the pipeline system of reciprocating compressor[J].Fluid Machinery，2017，2021，49(12)：78-85.
• [15]NIKOS CHRISOCHOIDES，ANDREY CHERNIKOV.Paraller mesh generation：theory and practice[M].CRC Press，2019.
• [16]PENG Z B，KEVIN GALVIN，ELHAM DOROODCHI.Influence of inclined plates on flow characteristics of a liquid-solid fluidized bed：A CFD-DEM study[J].Powder Technology，2019，343：70-184.
• [17]万方腾，何立东，丁继超，等.换热器管线阻尼减振技术研究[J].机电工程，2019，36(1)：36-39.WAN F T，HE L D，DING J C，et al.Damping vibration reduction technology of heat exchanger pipeline[J].Journal of Mechanical & Electrical Engineering，2019，36(1)：36-39.
• [18]杨美昆.多晶硅还原炉制造工艺技术探讨[J].化工设备与管道，2020，57(2)：33-36.YANG M K.Discussion of fabrication technology for polycrystalline silicon reduction furnace[J].Process Equipment & Piping，2020，57(2)：33-36.