储粮通风时机的选择与效果

SELECTION OF VENTILATION OPPORTUNITY AND ITS EFFECTS

应用机械通风达到低温要求后,选择最佳降温降水时机,采用控温技术,排除仓内、粮层内积热,延缓粮层内冷空气上升速率,以保持储粮品质;并介绍通风降水时机选择的湿度条件、温度条件,防止无效通风。

After given cold temperature was acquited by mechanic ventilation, selecting optimum temperature and moisture content reducing opportunity and making use of temperature controlling technique were taken to remove accumulated heat in storehouse space and stored grain and retard rising velocity of cold air in stored grain for maintaining quality of storage grain. In addition, humidity and temperature circumstances of ventilation opportunity selection for moisture content reducing was introduced , so as to avoid invalid ventilation.