球罐型360°茶叶摇青机设计及实验验证  

Design of spherical type 360°of tea stirring machine,flow field analysis and experimental analysis

作　　者：杨君 刘木华[3] 阮承治 张渤 叶江华 YANG Jun;LIU Mu-hua;RUAN Cheng-zhi;ZHANG Bo;YE Jiang-hua(College of Mechanical and Electrical Engineering,Wuyi University,Wuyishan,Fujian 354300,China;Agricultural Machinery Intelligent Control and Manufacturing Technology of Fujian Provincial Key Laboratory,Wuyishan,Fujian 354300,China;College of Engineering,Jiangxi Agricultural University,Nanchang,Jiangxi,330045,China;College of Tea and Food Science,Wuyi University,Wuyishan,Fujian 354300,China)

机构地区：[1]武夷学院机电工程学院,福建武夷山354300 [2]农机智能控制与制造技术福建省高校重点实验室,福建武夷山354300 [3]江西农业大学工学院,江西南昌330045 [4]武夷学院茶与食品学院,福建武夷山354300

出　　处：《食品与机械》2020年第10期81-86,共6页Food and Machinery

基　　金：国家自然科学基金项目(编号:61903288);福建省科技厅高校产学合作项目(编号:2019N503);福建省自然基金面上项目(编号:2018J01471);福建省高校杰出青年科研人才培育计划(编号:闽教科[2018]47号);福建省教育厅中青年教师教育科研项目(编号:JAT170587);武夷学院科研项目(编号:XP201804);南平市科技计划项目(编号:N2017DG01)。

摘　　要：针对现有滚筒式摇青机工作过程中流场分布不均匀导致茶叶做青品质参次不齐的问题,设计了一种新型球罐型360°茶叶摇青机,并优化其热风输送管结构;采用计算流体动力学软件STAR-CCM+对摇青机球罐体流场进行数值模拟,并通过样机做青验证。结果表明:球罐型360°茶叶摇青机送风管加装导流板,球罐内部不同点的实测最高温度与最低温度偏差2K,气流分布均匀。在做青吹风时间、摇青时间、晾青时间和做青次数等工艺参数相同条件下,新型摇青机茶叶做青品质优于传统滚筒式摇青机。In order to solve the problem of uneven distribution of flow field in the working process of traditional cylindrical tea stirring machine,a new type of 360°spherical tea stirring machine is designed,and the structure of hot air conveying pipe of the tea stirring machine is optimized.The computational fluid dynamics software STAR-CCM+is used to simulate the flow field of the spherical tank of the stirring machine.And the prototype is tested and verified.The results show that after the installation of annular guide plate on the air supply pipe of the 360°stirring machine,the temperature offset between the highest and lowest points is 2 K,and airflow is steady distributed.With the same prototype stirring parameters(blowing time,shaking time,air drying time and times of green making),the stirring quality of tea made by the new type of machine is better than that by the traditional stirring machine.

关 键 词：球罐型摇青机 计算流体力学 流场分析 样机试验 

分 类 号：TS272.3[农业科学—茶叶生产加工]