| 大型热泵粮食烘干塔结构特性分析 |
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| 引用本文： | 孙椰望,王冠斌,杨秋娟,李伟钊.大型热泵粮食烘干塔结构特性分析[J].农业工程,2020,10(3):59-62. |
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| 作者姓名： | 孙椰望 王冠斌 杨秋娟 李伟钊 |
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| 作者单位： | 中国科学院理化技术研究所,北京100190;北京理工大学,北京100081;河南省中科院科技成果转移转化中心,河南郑州450016;北京北特圣迪科技发展有限公司,北京100028;中国科学院理化技术研究所,北京100190 |
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| 基金项目： | 国家自然科学基金（项目编号：51805035）；国家科技支撑计划（项目编号：2015BAD19B00）；国家高技术农机发展计划（863计划）（项目编号：Y2C20311C2） |
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| 摘 要： | 为解决传统粮食烘干系统燃煤污染大、能耗高、控制不易和烘干品质较低的问题,优化设计了国内首台套大型热泵粮食烘干塔系统。针对该系统的烘干塔特殊结构,采用极端载荷边界条件的有限元结构分析和动态分析方法,较好地实现了粮食烘干塔的结构强度和动态稳定性设计与分析,解决了烘干塔因实体结构太大不易试验分析的问题。试验结果表明,该热泵粮食烘干系统能够在-30℃低温环境下实现高效运行,并达到了空气源热泵粮食烘干塔系统的设计目标和稳定运行,具备产业化推广应用的相关技术要求。
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| 关 键 词： | 热泵 粮食烘干塔 结构分析 可靠性 |
| 收稿时间： | 2019/10/24 0:00:00 |
| 修稿时间： | 2020/2/6 0:00:00 |
Structural Analysis of Heat-pump Grain Drying Tower |
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| SUN Yewang,WANG Guanbin,YANG Qiujuan,LI Weizhao.Structural Analysis of Heat-pump Grain Drying Tower[J].Agricultural Engineering,2020,10(3):59-62. |
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| Authors: | SUN Yewang WANG Guanbin YANG Qiujuan LI Weizhao |
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| Institution: | (Technical Institute of Physics and Chemistry,CAS,Beijing 100190,China;Beijing Institute of Technology,Beijing 100081,China;Henan Province Technical Realization Center of CAS,Zhengzhou Henan 450016,China;Beijing BSD Science Development Co.,Ltd.,Beijing 100028,China) |
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| Abstract: | In order to solve problems of coal-fired pollution，high energy consumption，bad control and lower drying quality problems in normal grain drying systems，large scale heat-pump grain drying system was designed and optimized.According to special structure of drying tower of this system，finite element structure analysis and dynamic analysis method of extreme load boundary condition were adopted to designed and analyzed structural strength and dynamic stability of grain drying tower，problem that drying tower was too large to be tested and analyzed was solved.Test results showed that heat-pump grain drying system could achieve efficient and stable operation at low temperature environment of -30℃，that design goal was achieve.Heat-pump grain drying tower could meet relevant technical requirements for industrial application. |
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| Keywords: | heating pump grain drying tower structural analysis reliability |
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