单板干燥蒸汽余热资源回收利用分析  

Analysis of reusing steam waste heat resources during veneer drying

作　　者：刘翔[1] 孙军[1] 徐德良[1] 许广珍 杨牧[1] 

机构地区：[1]南京林业大学材料科学与工程学院,南京210037

出　　处：《木材加工机械》2014年第6期23-25,共3页Wood Processing Machinery

基　　金：十二五国家科技支撑计划"胶合板生产干燥节能技术"(2012BAD24B0304);江苏高校优势学科建设工程资助项目

摘　　要：对胶合板干燥生产线蒸汽余热资源状况进行了测试和分析计算。结果表明,如将单板干燥机排出的冷凝水余热充分回收利用,可明显提高单板干燥能量利用效率,减少生产能耗成本。针对单板干燥蒸汽余热资源温度较低且一次蒸汽与工艺用汽参数不匹配的特点,提出了蒸汽余热回收的技术方案。分析计算结果表明,采用以蒸汽喷射器为核心的蒸汽梯级利用装置来回收蒸汽冷凝水余热,投资回收周期短,回收效果明显,可产生良好的经济效益和社会效益。This article analyzed and calculated the steam waste heat resource of plywood drying production line, the results shows that If the exhaust heat of condensate water can be fully recycled ,the energy efficiency of veneer drying will improved and the production cost will reduced obviously. According to the characteristics of low temperature exhaust heat and there are differences between primary steam and process steam, the technical scheme of waste heat recovery was put forward.The analysis shows that using steam cascade utilization device in waste heat recovery of plywood drying can achieve good economic and social benefits. The investment recovery period is short and the waste heat recycling effects is obvious.

关 键 词：单板 干燥 余热回收 蒸汽喷射器 

分 类 号：TS652[轻工技术与工程] TK115[动力工程及工程热物理—热能工程]