洗扫车气力输送系统两相流仿真研究  

Two Phase Flow Field Research and Simulation on Sweeper Pneumatic Conveying System

作　　者：王悦新[1] 张国胜[2] 

机构地区：[1]龙岩学院机电工程学院,福建龙岩364012 [2]交通运输部公路科学研究院,北京100088

出　　处：《交通节能与环保》2017年第5期27-30,共4页Transport Energy Conservation & Environmental Protection

基　　金：福建省自然科学基金项目(2017J01706)

摘　　要：近年来随着城市环卫要求的提高,洗扫车的销售量逐年增加,气力输送系统作为洗扫车关键技术之一,对其研究工作将日益深入。针对某FLM5164型扫路车吸嘴跨度长而导致的压力速度分布不均匀、吸尘效果不理想的问题,提出反吹式吸嘴、负压式沉降室,以及与反吹式吸嘴相结合的沉降室结构。在此基础上,建立洗扫车气力输送系统总体模型和吸嘴流场模型,分析吸嘴的两相流场分布及沉降室流场的速度和压力分布情况。结果表明:该反吹式吸嘴及沉降室结构可以满足对应风机的两相吸尘要求。该研究结果将为后续气力输送系统的优化设计提供参考。With the increasing requirements of city environmental hygiene,the sale amount of sweeper increase year after year.Pneumatic conveying system as one of the key technology of sweeper,the research work dealing with this system will more and more deepen.Dealing with the questions caused by FLM5164 sweeper long span,unevenly distribution of the pressure and velocity,not ideal vacuum suction,promote blowback nozzle and negative pressure dust chamber,and the dust chamber configuration combining with the blowback nozzle.Based on this,a pneumatic conveying system integral model and nozzle flow model are built,analyzing the nozzle's two phase flow field and dust chamber's velocity and pressure distribution.Research result shows that this blowback nozzle and dust chamber configuration can meet the corresponding fan's two phase suction requirements,this thesis' s work will provide reference for the future pneumatic conveying system optimization and design.

关 键 词：洗扫车 气力输送系统 流场分析 优化 

分 类 号：U469.6[机械工程—车辆工程]