优化絮凝对TOC去除效果及电厂蒸汽品质控制作用  

Effect of optimized flocculation on TOC removal and steam quality control in power plants

作　　者：尉院春 YU Yuanchun(China Energy Nanjing Electric Power Test&Research Co.,Ltd.,State Key Laboratory of Low-carbon Smart Coal-fired Power Generation and Ultra-clean Emission,Nanjing 210023,China)

机构地区：[1]国能南京电力试验研究有限公司低碳智能燃煤发电与超净排放全国重点实验室,南京210023

出　　处：《工业用水与废水》2024年第5期20-25,共6页Industrial Water & Wastewater

摘　　要：以北江水作为原水,探讨了优化絮凝工艺在去除原水总有机碳(TOC)方面的效率,并评估了其对热电厂补给水TOCi及蒸汽氢电导率的控制效果。研究发现,通过调整聚合氯化铝(PAC)和阴离子型聚丙烯酰胺(PAM)的最佳投加量至14 mg/L和0.4 mg/L,TOC去除率可显著提升至45%,且通过及时排泥,可进一步协同提升其去除率至50%。此外,优化后的絮凝工艺使锅炉补给水TOCi降低约50μg/L,有效改善了蒸汽的氢电导率。Taking water from Beijiang river as the raw water,the efficiency of optimized flocculation process on total organic carbon(TOC)removal was discussed,and the control effect of the said process on TOCi and steam hydrogen conductivity of the make-up water of power plants were evaluated.It was found that,through adjusting the dosage of PAC and PAM to 14 and 0.4 mg/L respectively,the removal rate of TOC could be significantly increased to 45%,and then further increased to 50%through discharging sludge timely.In addition,the optimized flocculation process reduced the TOCi of the boiler feedwater by about 50μg/L,which effectively improved the steam hydrogen conductivity.

关 键 词：供热机组 优化絮凝 总有机碳 有机物 氢电导率 

分 类 号：TM621.8[电气工程—电力系统及自动化]