气膜钢筋混凝土球形仓小麦储粮粮堆温度场云图分析研究

Analysis and Research on Cloud Diagram of Temperature Field of Wheat Grain Pile in Air-film Reinforced Concrete Spherical Silo

气膜钢筋混凝土球形仓(以下简称“气膜球形仓”)是一种新的仓储结构形式,为探究其在一个储藏周期内的粮情变化情况,以我国首座气膜球形仓为研究对象,以小麦粮堆为研究目标,通过数值拟合重现储藏周期内小麦的径向中垂面温度场云图分布情况。结果表明,气膜球形仓具有良好的隔热保温性能,储粮过程中具有仓温、平均粮温低等特点,在粮堆内部形成巨大且稳定的“冷芯”,有效抑制害虫繁殖活动;在一个储粮周期内,不使用化学药剂熏蒸能安全度夏,这对促进低温绿色储粮技术发展有着积极作用。

The air-film reinforced concrete spherical silo(hereinafter referred to as the air-film spherical silo)is a new type of storage structure.In order to explore the effect of the air-film spherical silo in a storage period,this paper takes the first air-film spherical silo in China as a research object and the wheat grain pile as the research target to reproduce the distribution of temperature field cloud map in the radial and vertical plane of wheat in the storage period by numerical fitting.Results showed that the air-film spherical silo had the characteristics of low silo temperature and average grain temperature.A huge and stable“cold core”formed inside the grain pile,effectively inhibiting the reproduction of pests.Therefore,the grains can safely pass the summer without the use of chemical fumigation in a whole grain storage period,which has a positive effect on promoting the development of low-temperature green grain storage technology.