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.