摘要
囊体管道水力运输作为一种相对较新的输送方式,与传统的输送方式相比较,更加节能、高效、环保。为进一步推动囊体管道水力输送,优化圆柱体结构参数,通过将圆柱体的荷载作为控制变量,对圆柱体在有压管道运移时的水力特性进行探究。通过研究得出:圆柱体的平均速度随着荷载的增大而减小;有压管道内水流的压强沿程减小且圆柱体的荷载不影响这种变化趋势;同一断面压强值随圆柱体荷载的增大而增大;单位能耗随着圆柱体荷载的增大而增大;圆柱体的输送率随着荷载增大先增大后减小,并在圆柱体荷载为4 N时最大。研究结论为优化圆柱体结构参数及囊体管道水力输送的投入使用提供了一定的理论基础。
As a new type of pipeline hydrotransport,capsule hydrotransport is more energy-saving,highly efficient,and environmental-friendly compared with traditional transmission.In order to optimize the structural parameters of cylindrical capsule and promote capsule hydrotransport,we investigate the hydraulic characteristics of cylindrical capsules conveyed in pressurized pipeline under different loads.We find that:1)the mean velocity of capsule increases with the rising of load;2)water pressure in the pipeline reduces along the way,and the load of capsule does not affect this trend;3)on a given section,pressure magnifies with the increment of load;4)unit energy consumption also rises with the augment of load;5)the transmission rate of capsule increases until the load reaches 4 N,and then decays.The conclusions of this paper offer theoretical basis for optimizing the structural parameters of cylindrical capsule and applying capsules in hydrotransport.
作者
胡志毅
李永业
黄莹彬
HU Zhi-yi;LI Yong-ye;HUANG Ying-bin(School of Water Conservancy Science and Engineering,Taiyuan University of Technology,Taiyuan 030024, China;Huaihe River Commission of the Ministry of Water Resources,Bengbu 233000,China)
出处
《长江科学院院报》
CSCD
北大核心
2018年第11期86-90,共5页
Journal of Changjiang River Scientific Research Institute
基金
国家自然科学基金项目(51109155
51179116)
山西省自然科学基金项目(2015011067)
太原理工大学校青年基金项目(1205-04020202)
关键词
水力输送
囊体管道
圆柱体
有压管道
单位能耗
输送率
hydraulic transmission
capsule pipeline
cylindrical capsule
pressurized pipeline
unit energy consumption
transmission rate
