虾饲料颗粒对自动饲喂系统提升管管壁的磨损研究  

Study on The Abrasion of Shrimp Feed Pellets of Feeding System's Lifting Pipe's Wall

作　　者：王腾 胡国胜 王雨 赵文捷 宋君萍[1,2] WANG Teng;HU Guosheng;WANG Yu;ZHAO Wenjie;SONG Junping(School of Mechanical and Electrical Engineering,Qingdao University of Science and Technology,Shandong Qingdao 266000,China;Sino-German Institute of Science and Technology,Qingdao University of Science and Technology,Shandong Qingdao 266000,China)

机构地区：[1]青岛科技大学机电工程学院,山东青岛266000 [2]青岛科技大学中德科技学院,山东青岛266000

出　　处：《饲料工业》2023年第10期7-11,共5页Feed Industry

摘　　要：实验针对虾饲料颗粒对气力输送自动饲喂系统管道的磨损开展研究。基于气固两相流理论,建立计算流体模型与离散元模型,通过计算流体力学与离散单元法耦合求解,探究气力输送自动饲喂系统提升管角度与入口风速对弯管内法向与切向磨损的影响。结果表明:提升管角度对法向和切向累积接触能影响不大,较大提升管角度可显著减小管道切向磨损面积;入口风速对法向和切向累积接触能影响较大,且较小入口风速可显著降低管道法向磨损面积。研究结果可为虾饲料自动饲喂系统的设计优化提供理论指导。The wear and tear of pipes in automatic pellet feeding systems caused by pellet movement dur⁃ing pneumatic is studied.Based on the gas-solid two-phase flow theory,the computational fluid dynamic(CFD)model and discrete element model(DEM)approach were developed,and solved by the coupling of CFD and DEM.The normal along with tangential wear in the bend caused by angle of the lift pipe and inlet air speed in the conveying system had been comprehensively explored.It shows that the angle of the lift pipe possesses no significant effect on the cumulative contact energy in both the normal and tan⁃gential directions.However,a larger lift pipe angle will considerably reduce the tangential wear area of the pipe.The inlet air velocity has a relatively large effect on the cumulative contact energy in both the normal and tangential directions.And a smaller inlet air velocity can substantially reduce the normal wear area of the pipe.The results will provide theoretical guidance for the design and optimization of the shrimp feed autonomous feeding system.

关 键 词：气力输送自动饲喂系统 磨损 虾饲料颗粒 计算流体力学-离散元耦合法 相对磨损模型 

分 类 号：S817.12[农业科学—畜牧学]