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公开(公告)号:WO2021129100A1
公开(公告)日:2021-07-01
申请号:PCT/CN2020/123100
申请日:2020-10-23
Applicant: 华南理工大学
IPC: G05D7/06 , G05D13/62 , G05D13/66 , B05B12/08 , B05B12/087 , G05D7/0635
Abstract: 一种新型非牛顿流体微涂覆系统,包括非牛顿流体材料装载机构、流体建模单元、智能反馈涂覆控制单元;非牛顿流体材料装载机构包括内设调压阀的储料压力桶(101)及通过进料管道(103)相连的顶针阀式喷嘴(107),调压阀控制储料压力桶(101)的气压大小,流体可被压入进料管道(103)后由喷嘴(107)喷出;流体建模系统负责对非牛顿流体的非线性特性进行过程分析,并对微涂覆过程动态建模;智能反馈涂覆控制系统包括上位机(112)、信号输入模块(111)、控制器(109)、被控对象模块、检测单元、执行模块,基于非牛顿流体模型,负责对管道流体的流速进行反馈控制。解决了现有微涂覆过程未按流体非线性特征进行反馈控制的难题,可应用于喷漆、荧光粉胶涂覆等各种表面涂覆工艺。
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公开(公告)号:WO2021263024A1
公开(公告)日:2021-12-30
申请号:PCT/US2021/038955
申请日:2021-06-24
Applicant: RAVEN INDUSTRIES, INC.
Inventor: BURGERS, Travis , STEENSMA, Seth , KROSSCHELL, Justin , KOCER, Jared, Ernest
IPC: B05B12/08 , B05B1/30 , A01M7/0042 , A01M7/0089 , B05B1/32 , B05B12/087 , B05B13/005
Abstract: A sprayer nozzle assembly includes a control valve configured to control a flow rate of agricultural product according to a duty cycle having valve open and valve closed positions. The assembly includes a sprayer tip having a tip orifice for spraying the agricultural product. A throttled interface duct interconnects the control valve and the sprayer tip. The throttled interface duct includes an interface duct profile. The interface duct profile is configured to decrease a flow characteristic of the agricultural product while the control valve is in the valve closed position.
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