利用谷冷技术在高温季节对高大浅圆仓中所储玉米进行降温,谷冷机出风口温度为18℃,相对湿度为80%,净谷冷时间为380.5h,试验仓基础粮温从25.96℃降低至20.64℃,吨粮成本为0.50元/吨.度,平均水分降低0.3%。通过对谷冷过程中粮温和水分变化的检测分析,研究了谷冷降温过程中粮食平均温度及粮食水分含量的变化规律,探讨了温度降低量与能耗之间的对应关系。 The use of valley cold technology in the high temperature season of corn stored in the shallow shallow silo cooling, valley cooler outlet temperature of 18 ℃, relative humidity of 80%, net valley cooling time was 380.5h, the basic temperature of the test chamber from 25.96 ℃ to 20.64 ℃, the cost per ton of grain is 0.50 yuan / ton, while the average water content decreases 0.3%. Through the analysis of the changes of grain temperature and water during the valley chilling process, the variation of grain average temperature and grain moisture content in the process of valley cooling was studied, and the correspondence between the temperature decrease and energy consumption was discussed.