一种智控型烟气余热深度回收装置的实践探索  

Practical exploration of recovery device for an intelligent-controlled flue gas waste heat

作　　者：李军[1] 耿景明[2] 樊鹏 LI Jun;GENG Jingming;FAN Peng(No.1 Oil Production Plant of Daqing Oilfield Co.,Ltd.;Daqing Oilfield Tianyu Engineering Design Co.,Ltd.;Shenzhen Jiayuntong Electronic Co.,Ltd.)

机构地区：[1]大庆油田有限责任公司第一采油厂 [2]大庆油田天宇工程设计有限责任公司 [3]深圳市佳运通电子有限公司

出　　处：《石油石化节能与计量》2024年第4期62-66,共5页Energy Conservation and Measurement in Petroleum & Petrochemical Industry

摘　　要：为了解决大庆油田加热炉排烟温度高、生产能耗大的问题,在加热炉排烟系统增设智控型烟气余热深度回收装置,以加热炉进液为冷源,将排烟温度冷却至50℃以下,综合回收烟气的显热和潜热,达到深度回收烟气余热的目的,并对烟气降温过程中产生的冷凝水进行全部回收,从根本上解决了冷凝水排放问题。应用装置前后系统整体热效率分别为79.94%和87.47%,综合计算得到装置的节能率为8.35%,节能效果显著;此外,对于1.0 MW加热炉,年平均负荷率50%,年运行时间330 h,测算得到每年节约天然气4.58×10^(4) m^(3),折合7.4万元,具有良好的经济效益。In order to solve the problems of high exhaust gas temperature and high production energy consumption in Daqing oilfield,an intelligent-controlled waste heat recovery device is installed in the exhaust gas system of heating furnace.The heating furnace inlet liquid is used as as cooling source,and the exhaust gas temperature will be cooled down to below 50℃,which comprehensively recovers the sensible heat and latent heat of flue gas,and achieves the purpose of recovering the waste heat of flue gas.In addition,all the condensation produced during the flue gas cooling process is recovered,which fundamentally solves the problem of condensation.The practical results show that the overall thermal efficiency of the system before and after application is 79.94% and 87.47% respectively,and the energy conservation rate of device achieved comprehensively is 8.35%,which makes energy conservation effect significant.Even more to the point,in view of the heating furnace of 1.0 MW,the annual average load rate is 50%,and the annual running time is 330 hours.It is estimated that natural gas is saved by 4.58×10^(4) m^(3) per year,which is equivalent to 74000 yuan and has better economic benefits.

关 键 词：油田加热炉 烟气余热 烟气冷凝水 冷凝水回收 节能降碳 

分 类 号：TK115[动力工程及工程热物理—热能工程] TE89[石油与天然气工程—油气储运工程]