神福鸿电脱硝自动回路分析与优化  

Analysis and Optimization of Denitration Automatic Circuit in Shenhua Fujian Energy Limited Company of Hongshan Town Shishi City Fujian Province

作　　者：吴吉 王伟哲 毕明波 Ji Wu;Weizhe Wang;Mingbo Bi(S henhua Fujian Energy Co. Ltd., Quanzhou City, Fujian, 362700, China;Neimeng Shenhua Guihua Hulun Buir Power Generation Co. Ltd., Hulun Buir City, Inner Mongolia, 021025, China)

机构地区：[1]神华福能发电有限责任公司,中国福建泉州362700 [2]内蒙古神华国华呼伦贝尔发电有限责任公司,中国内蒙古呼伦贝尔021025

出　　处：《工程技术与管理（新加坡）》2017年第1期94-98,共5页Engineering Technology & Management

摘　　要：结合中国神华福能发电有限责任公司已经投运的3#、4#超临界机组(2×1050MW),分析了不同工况下脱硝自动回路的调节效果,介绍了脱硝回路的调节原理及特点,并针对脱硝调节长期存在的问题进行了多个同类型机组的咨询与调研,同时结合机组不同工况下相关参数的变化规律进行摸索、尝试的经验,最终确定逻辑优化方案。利用机组停机期间对其回路前馈框架进行组态优化,机组运行期间根据实际调节情况在线修正各项前馈系数,通过长周期不同工况试验选择并确定最佳修正系数。逻辑优化后多次观察机组升降负荷、启停磨、暖磨、燃料量或风量突变等不同工况时,脱硝环保参数均能正常调节。完全可以解决机组投产以来存在的脱硝调节问题,优化效果非常理想。Combined with the 3#, 4# supercritical unit (2×1050MW)that has been put into operation of the Shenhua Fujian Energy Power Generation Co. Ltd. in China, the regulating effect of denitration automatic circuit under different working conditions is analyzed, and the adjustment principle and characteristics are introduced. According to the long-standing problems of denitrification regulation , several units of the same type have been consulted and investigated, at the same time, according to the groping and trying experience of the changing rules of the related parameters under different working conditions, the logical optimization scheme is finally determined. The configuration of the loop feed forward frame is optimized during the outage of the unit, and the feedforward coefficients are corrected on-line according to the actual adjustment condition during the operation of the unit, the optimum correction factor is selected and determined through the long cycle tests under different operating conditions. After the logical optimization, we find that the environmental protection parameters of denitrification can be adjusted normally in the lifting load, start and stop grinding, warm grinding, the amount change of fuel or air mutation and other different working conditions. The problem of denitrification adjustment can be solved completely after the commissioning of the unit, and the optimization effect is very satisfactory.

关 键 词：超临界机组 脱硝自动 调节原理 前馈 

分 类 号：TP311.13[自动化与计算机技术—计算机软件与理论]