横向通风技术在高大平房仓小麦储藏上的应用  

Application of transverse ventilation in wheat warehouse

作　　者：石天玉[1] 赵会义[1] 祝祥坤 张文龙 沈邦灶 曹阳[1] 魏雷[1] 

机构地区：[1]国家粮食局科学研究院,北京100037 [2]清苑国家粮食储备库,河北保定071100 [3]浙江中穗省级粮食储备库,浙江杭州311201

出　　处：《粮油食品科技》2015年第B03期28-32,共5页Science and Technology of Cereals,Oils and Foods

基　　金：粮食公益性行业科研专项经费项目(201313001-06)

摘　　要：探讨了横向通风技术在60 m×21 m高大平房仓小麦储藏上的应用,设计了横向通风系统方案。对实仓横向通风管网风速、风量、压力和粮堆内部静压等参数的研究测试结果表明,21 m跨度小麦高大平房仓横向通风系统中系统总阻力和单位粮层阻力随着单位通风量增大而增加,在实际降温通风作业过程中,单位通风量选取不应大于7 m3/h·t;横向通风系统中,通风途径比小,通风过程中粮堆内静压分布均匀,粮堆内气流分布比较均匀。The application of transverse ventilation system in large warehouse （60 × 21 ） for wheat storage was studied, and the system was designed. The air velocity, volume, pressure and resistance of the ven- tilation system and the static pressure in the grain bulk were detected. The results showed that both the total resistance of ventilation system and the unit profile resistance of grain bulk increased along with the increase of the unit aeration volume, which should be no more than 7m^3/h·t during the aeration application. The coefficient of variation of static pressure in the grain bulk was small, which reflected high uniformity of airflow distribution.

关 键 词：高大平房仓 小麦 横向通风 单位通风量 

分 类 号：S379.5[农业科学—农产品加工]