稀密两相状态监测实验平台设计  

Experimental Platform Design for Dilute and Dense Phase Condition Monitoring

作　　者：王明旭[1,2] 刘梦飞 解迎鑫 曹文凯 WANG Mingxu;LIU Mengfei;XIE Yingxin;CAO Wenkai(School of Mechanical&Electrical Engineering,Henan University of Technology,Zhengzhou 450001,China;Henan Provincial Key Laboratory of Grain and Oil Storage Construction and Safety,Zhengzhou 450001,China;Anhui Juli Grain Machinery Technology Co.,Ltd.,Fuyang 236000,Anhui,China)

机构地区：[1]河南工业大学机电工程学院,郑州450001 [2]河南省粮油仓储建筑与安全重点实验室,郑州450001 [3]安徽聚力粮机科技股份有限公司,安徽阜阳236000

出　　处：《实验室研究与探索》2024年第7期64-68,共5页Research and Exploration In Laboratory

基　　金：河南省高等学校重点科研计划项目(24A460004);2020年河南省高等学校青年骨干教师培养计划项目(2020GGJS088);河南省科技研发计划联合基金项目(应用攻关类)(232103810084)。

摘　　要：为了实际测量稀密两相对应的管道尺寸、风压和空气体积流量,设计了一个稀密两相状态监测实验平台。基于空气动力学理论和比例-积分-微分(PID)控制方法,将旁路调节系统应用到实验平台入口处,以控制管道入口空气体积流量,从而实现对物料稀密两相输送的实时监测与调控。该实验平台可实现稀密两相边界条件测试和流形稳定性分析等多项测试。最后,通过多次物料流形实验,验证了旁路调节系统在调控空气体积流量方面的有效性,以及气动测控系统维持物料流形的可行性。This paper designs an experimental testing platform for monitoring both dilute and dense phase states.The platform is based on aerodynamics theory and PID control method,and uses the a bypass regulating device at the entrance of the testing platform.This device controls the air flow at the entrance of the pipe,enables real-time monitoring and regulation of the material’s dilute and dense phase transportation.The testing platform is capable to conduct various experimental tests,including tests on dilute and dense phase boundary conditions and flow stability analysis.Finally,the feasibility of using the bypass regulating device to control air flow and the measurement and control system to maintain material flow form is verified through experiments.This paper provides theoretical support for pneumatic conveying equipment for bulk grain and offers strong support for the training of innovative talents.

关 键 词：气力输送 比例-积分-微分控制 输送流形 管道压降 空气体积流量 

分 类 号：TH232[机械工程—机械制造及自动化]