摘要
为了完善和发展筒装料管道水力输送技术,通过物理模型试验和理论分析相结合的方法研究有压管道内串列管道双车的运移速度的影响因素.结果表明:随着雷诺数、管道车直径、车身长度的逐渐增大,管道双车的运移速度均呈现出逐渐增大的变化趋势;而随着荷重的增加,管道双车的运移速度逐渐降低;不同车间距下管道双车的运移速度小于单个管道车的运移速度,且随着车间距的不断增大,管道双车的运移速度逐渐增大并向单个管道车的运移速度靠拢.采用多元回归分析中的标准回归系数法对各影响因素进行分析,结果发现雷诺数、管道车直径、车身长度、荷重、双车间距对管道双车的运移速度影响程度依次降低.研究成果可为优化管道车结构,提高管道双车的运移速度,降低管道车的输运能耗等提供一定的参考和基础.
In order to improve and develop the hydraulic transportation technology of tube loading pipeline,the influence factors of moving velocity of tandem two-pipe vehicles in pressure pipeline were studied by combining physical model test and theoretical analysis.The results show that:with the increase of Reynolds number,pipe vehicle diameter and vehicle length,the transportation velocity of two-pipe vehicles increases gradually.However,with the increase of the load,the transportation velo-city of two-pipe vehicles will gradually decrease.The results show that the transportation velocity of two-pipe vehicles is less than that of single pipeline vehicle under different vehicle spacing,and with the increase of vehicle spacing,the transportation velocity of two-pipe vehicle gradually increases and approaches to that of single pipeline vehicle.The standard regression coefficient method in multiple regression analysis was used to analyze the influencing factors.The results show that the influences of Reynolds number,vehicle diameter,vehicle length,load and distance between two vehicles on the transportation velocity of pipeline vehicles decrease in turn.The research results provide a certain re-ference and basis for optimizing the structure of the pipeline vehicle,increasing the transportation velocity of the two-pipe vehicles,and reducing the transportation energy consumption of pipeline vehicle.
作者
贾晓萌
孙西欢
李永业
JIA Xiaomeng;SUN Xihuan;LI Yongye(School of Hydro Science & Engineering, Taiyuan University of Technology, Taiyuan, Shanxi 030024, China)
出处
《排灌机械工程学报》
EI
CSCD
北大核心
2021年第1期50-55,共6页
Journal of Drainage and Irrigation Machinery Engineering
基金
国家自然科学基金资助项目(51179116,50579044,51109155)。
关键词
管道双车
雷诺数
管道车直径
车长
荷重
双车间距
标准回归系数法
two-pipe vehicle
Reynolds number
vehicle diameter
vehicle length
load
vehicle spacing
standard regression coefficient method
