320 MW机组运行中高加退出对SCR装置的影响及对策

天津科技 ›› 2023, Vol. 50 ›› Issue (Z): 78-80.

320 MW机组运行中高加退出对SCR装置的影响及对策

王富国, 田野

国能天津大港发电厂天津 300270

收稿日期:2023-09-20 出版日期:2023-12-06 发布日期:2023-12-27

Influence and Countermeasures of High Pressure Heater Out of Service on SCR Unit in 320 MW Unit Operation

WANG Fuguo, TIAN Ye

Guoneng Tianjin Dagang Power Plant,Tianjin 300270,China

Received:2023-09-20 Online:2023-12-06 Published:2023-12-27

摘要/Abstract

摘要： SCR烟气脱硝技术因其成熟可靠被广泛应用于我国火力发电厂。SCR装置对入口烟气温度有严格要求,锅炉给水温度的下降会直接导致烟气温度的下降。高加退出运行后,SCR装置如何保持正常运行,已成为目前火力发电厂亟待解决的课题。对某厂320 MW机组运行中投、退高加做了大量数据统计及分析,总结出了能够保障SCR装置安全运行的高加投、退操作措施,对保障火力发电厂脱硝系统安全运行有指导、借鉴意义。

关键词: 影响因素, 脱硝装置, 高加退出的影响, 原因及对策, 优化措施

Abstract: SCR flue gas denitration technology has been widely used in China’s thermal power plants because of its maturity and reliability. SCR devices have strict requirements for inlet flue gas temperature. The decrease of boiler feed water temperature will directly lead to the decrease of flue gas temperature. How to ensure the normal operation of the SCR device after the high pressure heater out of service has become an urgent issue for the majority of thermal power plants. This paper makes a large amount of data statistics and analysis for the operation of the 320 MW unit in a plant,and summarizes the operation measures of high pressure heater out of service or put into service that can ensure the safe operation of the SCR device. It is of guiding and reference significance to ensure the safe operation of denitration system in thermal power plant.

Key words: influencing factors, denitration device, impact of high pressure heater out of service, reasons and countermeasures, optimization measures

中图分类号:

X701

王富国, 田野. 320 MW机组运行中高加退出对SCR装置的影响及对策[J]. 天津科技, 2023, 50(Z): 78-80.

WANG Fuguo, TIAN Ye. Influence and Countermeasures of High Pressure Heater Out of Service on SCR Unit in 320 MW Unit Operation[J]. TIANJIN SCIENCE & TECHNOLOGY, 2023, 50(Z): 78-80.