不同地区不同储存条件对储粮“热皮”厚度的研究

粮食在储存过程中,粮温随仓温、气温变化。春夏演替过程中,粮温表现为"热皮""冷芯",粮堆产生温度梯度。实际工作中,粮情测温电缆行列间距通常在4～5 m,边缘测温点距粮面、仓底和仓壁0.3～0.5 m,无法准确反映"热皮"处粮情状况。本实验旨在研究"热皮"厚度范围,为制定粮仓保温措施提供参考。

Study on the thickness of hot skin of stored grain under different storage conditions in different areas

In the process of grain storage, grain temperature changes with warehouse temperature and air temperature. In the process of spring and summer succession, grain temperature shows hot skin and cold core, and grain pile produces temperature gradient. In practical work, the distance between the rows and columns of grain temperature measurement cables is usually 4 to 5 meters, and the edge temperature measurement points are 0.3 to 0.5 meters away from the grain surface, warehouse bottom and warehouse wall, which can not accurately reflect the grain situation at the hot skin. The purpose of this experiment is to study the thickness range of hot skin and provide a basis for the formulation of thermal insulation measures for granaries.