火电厂脱硫顺序控制逻辑设计
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摘要
针对火电厂炉内加石灰石进行脱硫时DCS操作步骤复杂、SO_2不易控制的现状,提出了炉内脱硫顺序控制的方案。基于OVATION控制系统,利用MASTERSEQ算法和DEVICESEQ算法设计出顺序控制逻辑,并详细阐述了顺序控制逻辑的具体实现方法,结合现场设备完成调试,实际运行效果良好,实现了炉内脱硫控制操作简单、SO_2容易控制的目标。
Aimed at solving current situation of DCS complex operation steps when added limestone powder to desulphurization in the furnace of thermal power plant and difficulty of controlling the concentration of SO_2,the scheme of desulphurization sequence control was proposed. Based on OVATION control system, MASTERSEQ algorithm and DEVICESEQ algorithm were used to have designed sequence control logic. This paper also elaborated the implementation method of sequential control logic, and completed debugging with field devices. Thesystem has runned well in actual production, achieved the goal of simple operation of desulfurization and controlling SO_2 concentration easily.
Aimed at solving current situation of DCS complex operation steps when added limestone powder to desulphurization in the furnace of thermal power plant and difficulty of controlling the concentration of SO_2,the scheme of desulphurization sequence control was proposed. Based on OVATION control system, MASTERSEQ algorithm and DEVICESEQ algorithm were used to have designed sequence control logic. This paper also elaborated the implementation method of sequential control logic, and completed debugging with field devices. Thesystem has runned well in actual production, achieved the goal of simple operation of desulfurization and controlling SO_2 concentration easily.
引文
[1] 白建云.大型火力发电厂顺序控制技术研究与应用.热力发电,2007(03):71-76.
[2] 山西平朔电厂二期扩建工程石灰石系统运行说明书.
[3] 汪秀丽.中国电力系统自动化综述[J].水利电力科技,2005(06).
[4] 林勇.浅谈火电机组自起停顺序控制技术的应用[J] .热力发电,2006(07):71-73.
[5] 张立鹤.大型火电机组化学水处理控制系统应用研究[D].西安建筑科技大学,2017.
[6] Ovation算法参考手册REF_1100.2006.
[2] 山西平朔电厂二期扩建工程石灰石系统运行说明书.
[3] 汪秀丽.中国电力系统自动化综述[J].水利电力科技,2005(06).
[4] 林勇.浅谈火电机组自起停顺序控制技术的应用[J] .热力发电,2006(07):71-73.
[5] 张立鹤.大型火电机组化学水处理控制系统应用研究[D].西安建筑科技大学,2017.
[6] Ovation算法参考手册REF_1100.2006.