管道机器人取能模块建模与几何参数仿真分析

Modeling of Pipeline Robot Energy Acquisition Module and Simulation Analysis of Geometric Parameters

管道机器人在工作过程中,受到线缆长度或蓄电池容量的影响,工作时间会受到限制。为了使机器人在管道内能够持续地工作,设计了一款能在管道内部将流体动能转化为电能的取能模块。叶轮在取能模块中起到将流体动能转化为机械能的作用,是整个模块的核心部分。针对不同参数的叶轮进行建模,并对叶轮进行CFD仿真分析。进而能分析叶轮在管道内部的受力情况以及叶轮形状等参数对于管道内部流场的影响。根据受力情况可校核叶轮的强度,并根据管道内部流场的变化进行叶轮的选型。

During the working process of the pipeline robot,the busy time will be limited due to the influence of the length of the cable or the capacity of the battery.To improve the continuous working time of the pipeline robot,an energy acquisition module that can convert the kinetic energy of water into electrical power inside the pipeline is designed.The impeller plays the role of converting hydro-kinetic energy into mechanical energy in the energy extraction module and is the core part of the entire module.In this paper,the impeller with different parameters is modeled,and the CFD simulation analysis of the impeller is carried out.Therefore,the force of the impeller inside the pipeline and the influence of the shape of the impeller and other parameters on the flow field inside the channel can be analyzed.The strength of the impeller can be checked according to the force,and the impeller can be selected according to the change of the flow field inside the pipeline.