文档介绍：热泵热风联合干燥的实验研究
季阿敏,张庆刚,钱剑锋,孙明明
(哈尔滨商业大学能源与建筑工程学院,哈尔滨 150028)
摘要利用热泵热风联合干燥的方法,对试材大红皮萝卜进行了脱水干燥实验研究。通过对试材重量、
送风温度、送风风速和萝卜丁尺寸等单因素变化实验,得出了各因素对干燥速率的影响规律;分别以 SMER
(单位能耗除湿量)和产品感官品质为评价指标,对试材的热泵热风联合干燥效果进行分析,得出了相应
的优化组合方式。
关键词热泵干燥热风干燥联合干燥影响因素优化组合

Experimental Study bined Heat-Pump and Hot-Air Drying
JI A-min, ZHANG Qinggang,QIAN Jifeng, SUN Ming-ming,
(School of Energy and Civil Engineering, Harbin University merce, Harbin 150028)
Abstract Using the method of bined drying of heat-pump and hot-air, the dehydration drying
experiments were carried out on the test materials of the big red skin turnip. Through the single-factor
experiments of weight, supply air temperature, supply wind speed and the size of the radish small cubes on the
test material, we obtained the effect laws of various factors to the drying rate; and by taking SMER (Specific
Moisture Extraction Rate) and sensory quality respectively as the evaluation indexes, we analyzed the effect of
combined drying of heat-pump and hot-air of the test material, and obtained the corresponding optimization
combination way.
Keywords Heat-pump drying Hot-air bined drying Affecting factors bination

0 前言的环境中,在干燥的后期采用热风干燥,加快物料
的干燥,缩短干燥时间。
干燥是一种具有储存成本低和处理质量轻的优
1 热泵干燥装置的工作原理
点的保存过程[1-5]。干燥同时也是一个复杂的传热传
质过程,它不仅受到物料特性和干燥介质参数的影热泵干燥是利用热泵从低温热源吸收热量,释
响,还与干燥工艺有着重要的联系。放到高温环境中,
热风干燥是脱水蔬菜的主要