高温热泵除湿干燥技术的初步研究  

Preliminary studyon high- temperature heatpump dehumidification for wood drying

作　　者：王喜平[1] 张璧光[1] 赵忠信[1] 

机构地区：[1]北京林业大学

出　　处：《木材工业》1994年第4期11-13,34,共4页China Wood Industry

摘　　要：本文介绍了高温热泵除湿干燥的工作循环及评价指标，并在研制ＲＣＧ３０Ｇ高温热泵除湿干燥机的基础上进行实际干燥实验研究。结果表明：１．高温热泵除湿干燥节能效果显著，干燥速度较快，具有较高的干燥质量；２．采用Ｒ１４２ｂ制冷剂可以获得较高的供风温度（最高供风温度＞７０℃），缩短干燥周期，降低能耗，同时可以减少对大气臭氧层的破坏；３．从干燥室低温区引入二次风可以减少干燥室的热量损失，同时可以满足冷凝器的风量要求。In this paper, the working circulations and evaluation methods ofhigh-temperature heat pump dehumidification,were presented. On the basis ofresearch and development of RCG30G high-temperature heat pump dehumidifierfor wood drying(HTHPD),a series of practical drying tests were performed.The results are as following:1.RCG30G HTHPD can save energy effectivelywhile drying timber, and also has advantages of high drying speed, good dry-ing quality and lower drying cost.2.Using the refrigerent R142b can raise thesupply air temperature (Max.> 70℃) ’ shorten the drying cycle and reducethe energy consumption and the ozonospheric disturbance.3.By drawing se-cond return air from the low temperature area of kiln into HTHPD, the heatloss of kiln was reduced greatly, meanwhile the air volume need of the con-denser can be met perfectly.

关 键 词：热泵 除湿 干燥 脱水比能耗 木材加工 制材 

分 类 号：TS652[轻工技术与工程]