遵化县粮食局在新店子中心粮站,开展了双层塑料薄膜密闭粮堆控温的试验,经三年摸索总结,认为采用此法,能保持粮堆较低的温度,是一项安全贮粮新技术。一、试验的依据与方案的选择粮堆中的传热方式,主要是粮堆中气流与仓内外气流的对流和传导。空气本身的导热系数是很低的,因此只要控制冷热气流的对流,就能控制粮堆的温度。于是一九八二 Zunhua County Grain Bureau in the new shop sub-center Grain Station, launched a double plastic film closed grain heap temperature control test, after three years groping concluded that the use of this method can keep the lower temperature of the grain heap is a safe storage New technology of grain First, the test basis and program options The heat transfer in the grain heap, mainly in the grain heap and the warehouse inside and outside the air flow convection and conduction. The thermal conductivity of air itself is very low, so as long as the convection of hot and cold air flow control, you can control the temperature of the grain piles. So in 1982