散粮管道旋流气力输送流场特性研究  

Study on the flow field characteristics of cyclone pneumatic conveying of bulk grain pipeline

作　　者：杨磊[1] 王龙 张永宇 李颍鹏 徐雪萌[1] Yang Lei;Wang Long;Zhang Yongyu;Li Yingpeng;Xu Xuemeng(School of Mechanical and Electrical Engineering,Henan University of Technology,Zhengzhou,450007,China)

机构地区：[1]河南工业大学机电工程学院,郑州市450007

出　　处：《中国农机化学报》2025年第1期99-104,137,共7页Journal of Chinese Agricultural Mechanization

基　　金：“十四五”国家重点研发计划(2022YFD2100201);山东省泰安市科技创新重大专项(2021ZDZX015);河南省重点研发专项(221111112000)。

摘　　要：针对旋流气力输送气固多相流场相间作用复杂,缺乏相关流场理论及起旋技术与装备研究等问题,开展散粮水平直管旋流气力输送特性研究。设计导流叶片式起旋器产生旋流场,为维持旋流输送,设计侧向补气继旋装置。搭建试验平台,以小麦颗粒为试验材料,开展针对旋流纯流场与两相流场特性试验研究。结果表明,在旋流纯流场中,入口风速为15~20 m/s时,系统静压损失最小,旋进距离最远;在加入小麦颗粒的两相流场中,入口风速为20 m/s时,旋流管内颗粒分布均匀,静压标准差最小,输送过程更加平稳;散粮旋流气力输送继旋试验中,当主管风速度为20 m/s,补气管风速度为60 m/s,主管与辅管夹角为45°时,流场输送效果较好,系统能耗较小。验证导流叶片式起旋器和侧向补气继续装置设计的合理性。In view of the complex interphase action of gas-solid multiphase flow field,the lack of relevant flow field theory,spinning technology and equipment research,the characteristics of horizontal straight pipe cyclone pneumatic conveying of bulk grain were studied.In this paper,a vane rotor is designed to generate a swirl field.In order to maintain the swirl transport,a lateral air supply relay device is designed.A test platform was set up to study the characteristics of swirl pure flow field and two-phase flow field with wheat particles as the test material.The results show that when the inlet wind speed is 15-20 m/s,the system static pressure loss is the smallest and the precession distance is the longest.When the inlet wind speed is 20 m/s,the particle distribution in the swirl tube is uniform,the static pressure standard deviation is minimum,and the transport process is more stable.When the main air velocity is 20 m/s,the air velocity of the supplementary pipe is 60 m/s,and the Angle between the main pipe and the auxiliary pipe is 45°,the flow field conveying effect is better and the system energy consumption is less.The reasonableness of the design of vane rotor and side aeration continuation device is verified.

关 键 词：散粮 水平直管 旋流 气力输送 

分 类 号：TS210.3[轻工技术与工程—粮食、油脂及植物蛋白工程] S23[轻工技术与工程—食品科学与工程]