不同横向通风方式降温保水效果对比研究  

Comparative Study on the Effect of Different Horizontal Ventilation Ways to Cooling and Keeping Water

作　　者：许建双 王学正 安超楠 白国伟 彭超远 李喜洋 陈峰 张杰 XU Jian-shuang;WANG Xue-zheng;AN Chao-nan;BAI Guo-wei;PENG Chao-yuan;LI Xi-yang;CHEN Feng;ZHANG jie(State Grain Reserves Nan yang Depot Co.,Ltd.,Nanyang,Henan 473000,China;The henan branch of china grain reserves group Co.,Ltd.,Zhengzhou,Henan 450000,China;Quality inspection center of China grain Henan branch,Zhengzhou,Henan 450000,China)

机构地区：[1]中央储备粮南阳直属库有限公司,河南南阳473000 [2]中国储备粮管理集团有限公司河南分公司,河南郑州450000 [3]中国储备粮管理集团有限公司河南分公司质检中心,河南郑州450000

出　　处：《粮油食品科技》2020年第6期223-228,共6页Science and Technology of Cereals,Oils and Foods

摘　　要：为了解不同横向通风方式的降温效果和水分损失情况,在2个30 m跨度小麦仓分别实施覆膜式横向通风和揭膜式横向通风。通过检测2个仓通风前后粮温、水分变化和通风时间及能耗等参数,对降温效果、单位能耗、水分损失、温度和水分均匀性进行了评价。结果表明,覆膜式通风降温与揭膜式通风降温相比,通风均匀性和降温效果较好,虽然通风时间、单位能耗分别增加140 h、600 Kw∙h,但降温幅度提高0.5℃,粮食水分损失较小,整仓平均水分仅减少0.1%,为合理选择横向通风方式提供了依据。To understand the cooling effect and water loss of different transverse ventilation modes,Cover the grain stack with film and step by step unwinding grain stack film both in the transverse ventilation were used in the two wheat stored warehouses which the wide is 30 m.The temperature and moisture of the grain in the two warehouses before and after ventilation were tested,the uniformity of grain temperature was measured.The cooling effect,unit energy consumption,water loss,temperature and water uniformity were evaluated.The result indicate that:compared with the step by step unwinding grain stack film in the transverse ventilation,although the ventilation time and unit energy consumption of covering the grain stack with film increased by 140 h and 600 kW.h respectively.However,the uniformity of ventilation was better,the cooling effect was slightly better,the cooling range was 0.5℃higher,the grain water loss was small,the average water of the whole barn wass 0.1%smaller.So it provides a basis for the reasonable selection of transverse ventilation.

关 键 词：横向通风 通风均匀性 降温效果 通风能耗 水分损失 

分 类 号：TS210.2[轻工技术与工程—粮食、油脂及植物蛋白工程] TU834.25[轻工技术与工程—食品科学与工程]