标题:
干燥塔尾气余热回收系统换热器设计Design of Heat Exchanger for Drying Tower Tail Gas Waste Heat Recovery System
作者:
赵金辉, 张力隽
关键字:
干燥塔尾气, 余热回收, 换热器Drying Tower Tail Gas; Recovery of Waste Heat; Heat Exchanger
期刊名称:
《Advances in Energy and Power Engineering》, Vol.1 No.3, 2013-08-12
摘要:
本文结合某蛋白粉厂干燥塔实例，设计了干燥塔尾气余热利用方案，通过设置换热器进行余热回收，将常温20℃空气进行预热，提高空气温度约80℃，预热后的空气再经过过滤器，由鼓风机送入加热器，加热后进入干燥塔，减少蒸汽的使用量，以达到减少煤炭消耗、节能减排的目的。经分析计算得到该方案核心装置换热器的设计结果，并对方案的初投资和运行效果、投资回收期等经济性指标进行了计算，表明该方案在尾气回收中可以取得较为实用的经济效益和社会效益。In combination with a protein powder factory drying tower example, an exhaust waste heat scheme is de- signed. By setting up the waste heat exchanger, the air is preheated from 20˚C to 80˚C. The preheated air goes through the filter into heater, heated into the drying tower, which can reduce the steam consumption and the coal consumption, achieving the goal of energy conservation and emissions reduction. Through analysis and calculation, the heat ex- changer design results are obtained. The initial investment, the operation results, and the investment capital are calcu- lated, which shows that the scheme in drying tower tail gas recovery has the economic and social benefits.