CAJ | 학술논문

应用非线性化的增量分析方法，将锅炉运行状态与设计状态下的炉膛出口烟温（ftmaance exit gas temperature，FEGT）增量作为表征炉膛灰污染程度的参数，建立了I-FEGT的计算模型；在经过仿真计算验证模型正确性的基础上，结合某台600Mw机组燃煤锅炉实时采集的数据，利用所建模型对炉膛灰污染状况进行了实时监测，结果表明：I-FEGT能正确反映炉膛灰污染程度及其变化。可用于电站锅炉炉膛受热面灰污染实时监测、实时指导吹灰或检验吹灰效果。
응용비선성화적증량분석방법，장과로운행상태여설계상태하적로당출구연온（ftmaance exit gas temperature，FEGT）증량작위표정로당회오염정도적삼수，건립료I-FEGT적계산모형；재경과방진계산험증모형정학성적기출상，결합모태600Mw궤조연매과로실시채집적수거，이용소건모형대로당회오염상황진행료실시감측，결과표명：I-FEGT능정학반영로당회오염정도급기변화。가용우전참과로로당수열면회오염실시감측、실시지도취회혹검험취회효과。
By Applying nonlinear incremental analysis methods, the extent of ash fouling in furnace was represented by the increment of furnace exit gas temperature （I-FEGT） between two states： actual running state and designing state. And the mathematical model for I-FEGT was also established. For validating in respect of accuracy, some calculations were carried on in simulation mode. Using the real time data of a coal-fired utility boiler in 600 MW power plant, I-FEGT was calculated for on-line monitoring the varieties of ash fouling in furnace. The results indicate that, I-FEGT correctly reflects the extent and varieties of ash fouling in furnace, can be used for furnace ash fouling monitoring, real-time guidance or checking effect for soot-blowing.