高扬程泵站液控蝶阀的磨损特性分析及结构优化研究  

Wear Characteristics Analysis and Structural Optimization of Hydraulic Butterfly Valve in Gaoyangcheng Pumping Station

作　　者：史小梅 闫宏福 Shi Xiaomei;Yan Hongfu(Gansu Jingtaichuan Electric Power Irrigation Water Resources Utilization Center,Baiyin 730400,Gansu,China)

机构地区：[1]甘肃省景泰川电力提灌水资源利用中心,甘肃白银730400

出　　处：《农业技术与装备》2024年第6期16-18,21,共4页Agricultural Technology & Equipment

基　　金：甘肃省水利重点科研计划项目(24GSLK021)。

摘　　要：阀门通常使用于多相流的环境下,运行环境相对恶劣,特别是其内部的固-液两相流场分布十分复杂,使得阀门容易出现汽蚀和冲蚀磨损现象。为解决上述阀门使用问题,提高阀门的使用寿命,以蝶阀为例,利用Fluent有限元分析软件建立湍流和离散相流模型,对蝶形阀中部流道内的流场进行数值仿真,分析阀口开度对蝶阀壁面和蝶板磨损的影响。结果表明,蝶阀的磨损量及磨损幅度均随蝶阀自身的开度降低而增加,蝶阀磨损幅度最大的部位是蝶板,中间部分几乎不受磨损。通过对蝶阀结构的优化,有效减小蝶阀自身的磨损幅度,提高蝶阀稳定性。The valve is usually used in a multi-phase flow environment,the operating environment is relatively harsh,especially the distribution of the solid-liquid two-phase flow field inside is very complex,making the valve prone to cavitation and erosion wear.In order to solve the above problems and improve the service life of the valve,taking the butterfly valve as an example,the turbulent flow and discrete phase flow model were established by using the finite element analysis software Fluent,and the flow field in the middle channel of the butterfly valve was numerically simulated,and the influence of the opening degree of the valve on the wear of the butterfly valve wall and butterfly plate was analyzed.The results showed that the wear amount and wear range of the butterfly valve increase with the decrease of the opening of the butterfly valve itself.The butterfly plate is the most worn part of the butterfly valve,and the middle part is almost free from wear.By optimizing the structure of the butterfly valve,the wear range of the butterfly valve can be effectively reduced and the stability of the butterfly valve can be improved.

关 键 词：蝶阀 磨损 特性分析 结构优化 

分 类 号：S633.3[农业科学—蔬菜学]