尿素热解法脱硝系统自动控制策略优化
发表时间:2018-06-25T17:09:22.453Z 来源:《电力设备》2018年第7期作者:李云邹包产赵宇[导读] 摘要:对基于选择性催化还原法的尿素热解法脱硝系统原理和自动控制策略进行了阐述。
(中国大唐集团科学技术研究院有限公司西北分公司西安 710021)摘要:对基于选择性催化还原法的尿素热解法脱硝系统原理和自动控制策略进行了阐述。
针对控制系统中存在的耦合问题,提出了一种调节两侧SCR反应器出口NOx浓度偏差的控制方案,较好地满足了脱硝自动化控制的要求,并具有较强的通用性和实用性。
关键词:SCR;尿素热解法;自动控制
Optimization of automatic control strategy for pyrolysis urea denitrification system LI-Yun,ZOU Bao-chan,Zhao-Yu
(China Datang Group Science and Technology Research Institute Co.,Ltd. Northwest Branch,XIAN 710021) Abstract:The principle and automatic control strategy of urea pyrolysis denitrification system based on selective catalytic reduction method are described. In view of the coupling problem in the control system,a control scheme for adjusting the deviation of NOx concentration in both sides of the SCR reactor is proposed.
Key words:SCR,Urea thermal decomposition,Automatic control。