摘要
为解决某630 MW机组锅炉长期喷氨自动无法投入问题,对当前机组脱硝喷氨调门逻辑进行分析。通过增加辅助调整逻辑完善改进目前喷氨控制系统,辅助调整逻辑改善后,解决因流量计失准、喷氨均匀性偏差大时倒/顺挂现象引起的喷氨自动无法投入的问题;过量喷氨现象减轻,氨逃逸量下降;喷氨自动投入率提高;改善烟气分析仪校准维护后瞬时值突升问题,达到提高喷氨自动投入率、降低运行人员劳动强度目的。
To address the long-standing issue of the inability to automatically inject ammonia in the boiler of a certain 630 MW unit,an analysis of the current ammonia injection logic for denitration of the unit was conducted.By adding auxiliary adjustment logic to improve the existing ammonia injection control system,the auxiliary adjustment logic has resolved issues such as the inability to automatically inject ammonia due to flowmeter inaccuracies and large deviations in ammonia uniformity,leading to reverse/forward hanging phenomena.Excessive ammonia injection has been mitigated,and ammonia escape has decreased.The rate of automatic ammonia injection has been improved,and the issue of sudden increases in instantaneous values after calibration and maintenance of the flue gas analyzer has been improved,achieving the goal of increasing the rate of automatic ammonia injection and reducing the labor intensity for operating personnel.
作者
刘帅
程耀
刘凤武
LIU Shuai;CHENG Yao;LIU Feng-wu
出处
《节能》
2024年第8期79-81,共3页
Energy Conservation
关键词
喷氨自动控制
逻辑优化
脱硝系统
automatic ammonia injection control
logic optimization
denitration system
作者简介
刘帅(1990-),男,本科,工程师,研究方向为燃煤电厂锅炉运行。
