广东电力
廣東電力
엄동전력
Guangdong Electric Power
2015年
9期
18-21
,共4页
张殿平%钟礼今%邓坚%叶福南%傅喻帅%王国强
張殿平%鐘禮今%鄧堅%葉福南%傅喻帥%王國彊
장전평%종례금%산견%협복남%부유수%왕국강
煤粉锅炉%低氮燃烧%优化控制%自适应
煤粉鍋爐%低氮燃燒%優化控製%自適應
매분과로%저담연소%우화공제%자괄응
pulverized coal boiler%low NOx combustion%optimization control%self-adaptive
针对一台低氮燃烧改造后的700 MW 四角切圆锅炉，提出一种锅炉多煤种低氮燃烧自适应优化控制方法。首先，对神混煤、神混煤掺烧印尼煤、神混煤掺烧石炭煤3种常用煤种开展多工况运行优化控制调整试验，获得各煤种不同工况下的优化控制参数；然后，将这些优化控制参数固化到锅炉机组的分散控制系统中，形成各煤种下的锅炉运行优化控制模式，并设置一键式操作功能；最后，运行人员根据实际燃用煤种信息，采用一键式操作功能选择相对应的运行优化控制模式，实现锅炉实时优化调整和控制。变负荷自动程序控制测试结果表明，所建立的控制模式能够有效实现变负荷过程的自动控制。实际的运行效果表明，该方法快捷、有效，参数调整精确，能杜绝误操作，提升了优化控制效果，增强了锅炉负荷与多煤种低 NOx 燃烧适应性。
針對一檯低氮燃燒改造後的700 MW 四角切圓鍋爐，提齣一種鍋爐多煤種低氮燃燒自適應優化控製方法。首先，對神混煤、神混煤摻燒印尼煤、神混煤摻燒石炭煤3種常用煤種開展多工況運行優化控製調整試驗，穫得各煤種不同工況下的優化控製參數；然後，將這些優化控製參數固化到鍋爐機組的分散控製繫統中，形成各煤種下的鍋爐運行優化控製模式，併設置一鍵式操作功能；最後，運行人員根據實際燃用煤種信息，採用一鍵式操作功能選擇相對應的運行優化控製模式，實現鍋爐實時優化調整和控製。變負荷自動程序控製測試結果錶明，所建立的控製模式能夠有效實現變負荷過程的自動控製。實際的運行效果錶明，該方法快捷、有效，參數調整精確，能杜絕誤操作，提升瞭優化控製效果，增彊瞭鍋爐負荷與多煤種低 NOx 燃燒適應性。
침대일태저담연소개조후적700 MW 사각절원과로，제출일충과로다매충저담연소자괄응우화공제방법。수선，대신혼매、신혼매참소인니매、신혼매참소석탄매3충상용매충개전다공황운행우화공제조정시험，획득각매충불동공황하적우화공제삼수；연후，장저사우화공제삼수고화도과로궤조적분산공제계통중，형성각매충하적과로운행우화공제모식，병설치일건식조작공능；최후，운행인원근거실제연용매충신식，채용일건식조작공능선택상대응적운행우화공제모식，실현과로실시우화조정화공제。변부하자동정서공제측시결과표명，소건립적공제모식능구유효실현변부하과정적자동공제。실제적운행효과표명，해방법쾌첩、유효，삼수조정정학，능두절오조작，제승료우화공제효과，증강료과로부하여다매충저 NOx 연소괄응성。
In allusion to a 700 MW tangentially fired utility boiler after low NOx combustion transformation,a kind of self-a-daptive optimization control method for multi-coal low NOx combustion for the boiler was proposed.Firstly,adjustment ex-periment on operation optimization control under various working conditions was developed for three common types of coal including mixed coal,blending combustion of mixed coal and Indonesia coal and blending combustion of mixed coal and car-boniferous coal so as to obtain optimization control parameters of various types of coal under different working conditions. Secondly,these parameters were solidified into disperse control system of the boiler unit to form operation optimization con-trol mode for the boiler under the condition of various types of coal and set one-button operating function.Finally,operat-ing crew used one-button operating function to choose corresponding operation optimization control mode according to infor-mation of practical fired coal in order to realize real-time optimization adjustment and control for the boiler.Test result of load change automatic program control indicates that the established control mode could effectively realize automatic control on load change process.Practical operational effect indicates that this method is fast and effective which could realize precise adjustment on parameters and avoid false operation as well as improve effects of optimization control and enhance adaptabil-ity of boiler load and multi-coal low NOx combustion.
