摘要
以某污泥干化焚烧处理工程为研究对象,分别建立污泥干化系统、焚烧及余热利用系统和烟气处理系统的能量平衡模型。基于实际运行数据和现场测定数据,确定了运行期间污泥干化焚烧系统中主要的能量损失点,包括干化载气洗涤水热损失、干化机散热损失、焚烧炉及余热利用系统散热损失、烟气洗涤水热损失等。针对系统主要的能量损失点,提出了针对全过程的节能降耗方案。即,首先通过运行参数调节来提高干化机和焚烧及余热利用系统效率从而减少散热损失,再通过余热利用干化载气以及洗涤塔前烟气,从而减少载气洗涤排污热损失和烟气洗涤水热损失。
Energy balance models of sludge drying system,incineration and waste heat utilization system and flue gas treatment system were established based on a sludge drying and incineration project.According to the operation data and on-site analytic data,the main energy loss points in the system were determined including the heat loss of the carrier gas washing water of drying system,the heat loss of the drying machine due to radiation,the heat loss of the incinerator and the waste heat utilization system due to radiation,and the sensible heat loss of the washing water of flue gas.According to these main energy loss points,this paper proposed an energy saving and consumption reducing scheme for the whole process.Firstly,the operating parameters are adjusted to improve the efficiency of drying machine,incineration and waste heat utilization system to reduce the heat loss.Then,through the usage of waste heat,drying carrier gas and flue gas in front of scrubbing tower,the heat loss of carrier gas washing sewage and the flue gas washing water can be reduced.
作者
王丽花
吕国钧
王飞
胡扬清
陈文迪
池涌
蒋旭光
WANG Li-hua;LU Guo-jun;WANG Fei;HU Yang-qing;CHEN Wen-di;CHI Yong;JIANG Xu-guang(Shanghai Municipal Sewage Company Ltd.,Shanghai 200233,China;State Key Laboratory of Clean Energy Utilization,Zhejiang University,Hangzhou 310027,China)
出处
《中国给水排水》
CAS
CSCD
北大核心
2021年第4期29-36,共8页
China Water & Wastewater
基金
国家重点研发计划项目(2018YFF0215001、2018YFC1901302、2017YFC0703100)
国家自然科学基金创新群体项目(51621005)
国家自然科学基金资助项目(51676172)
浙江大学基本科研业务费专项资金资助项目(2018FZA4010、2016FZA4010)。
关键词
污泥
干化
焚烧
能量平衡
能量损失
sludge
drying
incineration
energy balance
energy loss
