热管余热节能回收装置在粮食干燥系统中的应用试验研究

摘要

The waste heat recovery of heat exchanger in the grain drying system of 1.67×106 kJ was studied.The heat pipe device was installed on the top of the heat exchanger,with simple structure and easy maintenance.The experiment results showed that when the furnace temperature was about 316~437℃,and the ambient temperature was 22℃,the clean air temper-ature increased from 22℃ to about 40℃,and the waste heat recovery effect was very obvious,which created good conditions for energy saving and consumption reducing in the drying system.%针对 1.67×106 kJ 粮食干燥系统中换热器的余热回收进行了研究.将热管装置安装在换热器的顶部,其结构简单,维修方便.应用实验结果表明,当炉膛温度在 316~437℃、环境温度 22℃左右时,新鲜空气温度能够从22℃提高到40℃左右,余热回收效果非常明显,这为整个干燥系统的节能降耗创造了很好的条件.