摘要
作为粮食应急储备体系的基石,成品粮储藏的技术水平是保障区域粮食安全、实现节粮减损的关键所在。以华南中山地区典型成品粮低温楼房仓中缓苏间为原型,采用缩尺模型实验的方法,在外界温度30℃、相对湿度55%的条件下,采用高、中、低3种风速对缓苏间进行试验,探究下送—上回通风方式对缓苏间温度分布的影响。结果表明:送风速度是影响温场均匀性的关键因素。当送风速度达到3.4 m/s时缓苏间内平均温度为17.1℃,同时空气层与工作区温度温差为2.5℃。具有更低的温度与更小的温差,验证了“下送—上回”通风方式在提升成品粮仓储环境均匀性与稳定性方面的可行性与优势,满足准低温储藏工艺要求。
As a cornerstone of the grain emergency reserve system,the technological level of finished grain storage is crucial for ensuring regional food security and achieving grain conservation and loss reduction.This study takes the tempering room of a typical low-temperature multi-story finished grain warehouse in Zhongshan,South China,as a prototype and employs a scaled-down model experimental approach.Under external conditions of 30°C and 55%relative humidity,experiments were conducted on the tempering room using high,medium,and low airflow velocities to investigate the impact of the"bottom-supply,top-return"ventilation method on temperature distribution within the room.The results indicate that the airflow velocity is a key factor influencing the uniformity of the temperature field.When the airflow velocity reaches 3.4 m/s,the average temperature inside the tempering room is 17.1°C,while the temperature difference between the air layer and the working area is 2.5°C.This configuration achieves both lower overall temperatures and a smaller temperature gradient,thereby validating the feasibility and advantages of the"bottom-supply,top-return"ventilation method in enhancing environmental uniformity and stability for finished grain storage.These findings meet the requirements of quasi-low-temperature storage technology.
作者
韩志强
陈雁
何睿
许启铿
王闯
赵志文
刘帅
张倩影
Han Zhiqiang;Chen Yan;He Rui;Xu Qikeng;Wang Chuang;Zhao Zhiwen;LiuShuai;Zhang Qianying(Zhongshan Grain Reserve Management Co.,Ltd.,Zhongshan,Guangdong 528400;School of Civil Engineering,Henan University of Technology,Zhengzhou,Henan 450001)
出处
《粮食科技与经济》
2026年第1期81-84,95,共5页
Food Science And Technology And Economy
基金
河南省科技攻关项目(212102310291)。
关键词
气流组织
缩尺实验
楼房仓
成品粮
air distribution
scale model experiment
multi-story warehouse
finished grain
