泵阀一体式组合结构的设计与实验研究  

Design and experimental research of integrated pump valve structure

作　　者：周先军 薛阳帆 李龙 于富豪 韩东岳 ZHOU Xianjun;XUE Yangfan;LI Long;YU Fuhao;HAN Dongyue(School of Mechanical and Electrical Engineering,China University of Petroleum,Qingdao 266580,China;CRRC Shandong Co.,Ltd.,Jinan 250022,China)

机构地区：[1]中国石油大学(华东)机电工程学院,山东青岛266580 [2]中车山东机车车辆有限公司,山东济南250022

出　　处：《机电工程》2025年第4期706-713,共8页Journal of Mechanical & Electrical Engineering

基　　金：山东省自然科学基金面上项目(ZR2022MF291)。

摘　　要：针对高层居民热水管道流量不足,以及泵阀可控性差等问题,对泵阀一体式组合结构进行了研究,提出了一种一体式泵阀结构,设计并建立了流道和传动结构的三维模型,采用数值模拟和实验的方法,研究了阀体参数对一体式泵阀性能的影响。首先,在阀体内部引入旋转叶轮,建立了阀体与叶轮的三维模型,并设计了特殊传动结构,完成了对阀芯开启和叶轮旋转的控制;然后,采用Fluent软件,建立了流体域模型,运用多重参考系(MRF)模型研究了叶轮主动旋转过程中对阀体内部流动的影响情况,同时,结合动网格技术和流固耦合(FSI),对阀门启闭过程进行了瞬态有限元分析;然后,采用单因素分析和响应曲面设计(RSM)方法对叶轮参数进行了优化;最后,运用3D光固化技术打印出了非标零部件,并搭建了试验平台进行了试验,对仿真结果的准确性进行了验证。研究结果表明:随着叶轮转速的不断增加,流量与转速基本呈现出线性关系,效率随着转速的增加先上升后趋于稳定,旋转叶轮的最优参数组合为叶片数6片,进口安放角55°,翼展10 mm,弦长14 mm,且试验测得的出口流量与数值模拟结果基本一致,最大误差在10%以内,有效验证了仿真结果的准确性。该结果证明,一体式泵阀结构是可行的。Aiming at the problems of insufficient flow of hot water pipes for high-rise residents and poor controllability of pumps and valves,the integrated combined structure of pumps and valves was studied.A kind of integrated pump valve structure was put forward,and the three-dimensional model of flow passage and transmission structure was designed and established.The influence of valve body parameters on the performance of integrated pump valve was studied by numerical simulation and experiment.Firstly,a rotating impeller was introduced into the valve body,the three-dimensional model of the valve body and the impeller was established,and the special transmission structure was designed to control the opening of the valve core and the rotation of the impeller.Then,Fluent software was used to establish a fluid domain model,and multiple reference frame(MRF)model was used to study the influence of impeller active rotation on the internal flow of the valve body.At the same time,the transient finite element analysis of the valve opening and closing process was carried out by the combination of fluent dynamic mesh technology and fluid-structure interaction(FSI).And the parameters of the impeller were optimized by single-factor analysis and response surface methodology(RSM).Finally,the nonstandard parts were printed by 3D photo-curing technology,and a test platform was built to test the accuracy of the simulation results.The research results show that with the continuous increase of the speed of the impeller,the flow rate and the speed basically show a linear relationship,and the efficiency rises first and then tends to be stable with the increase of the speed,the optimal parameter combination of the rotating impeller is 6 blades,the inlet setting angle is 55°,the wingspan is 10 mm,and the string length is 14 mm.The outlet flow obtained by the test is basically consistent with the numerical simulation results,and the maximum error is less than 10%,thus effectively verifying the accuracy of the simulation results.This result pr

关 键 词：泵阀组合结构 旋转叶轮 流场分析 多重参考系 响应曲面设计 流固耦合 

分 类 号：TH137[机械工程—机械制造及自动化] TH122