CAJ | 학술논문

针对电厂除尘、脱硫系统改造后,锅炉引风机出现的失速问题,通过现场试验测试锅炉引风机的运行特性参数,并结合引风机的理论性能曲线分析,发现引风机实际运行的工作点接近其理论失速线,工作中出现失速问题:在引风机系统入口端加装KSE(风机性能稳定器)装置,改变其理论失速线的位置,使引风机的实际工作点远离其理论失速线.避免引风机出现失速现象.对锅炉引风机出现的失速问题进行分析探讨,提出引风机改造选型中应注意引风机失速裕度的选取问题,可为今后电厂进行类似方面的改造提供借鉴.
침대전엄제진、탈류계통개조후,과로인풍궤출현적실속문제,통과현장시험측시과로인풍궤적운행특성삼수,병결합인풍궤적이론성능곡선분석,발현인풍궤실제운행적공작점접근기이론실속선,공작중출현실속문제:재인풍궤계통입구단가장KSE(풍궤성능은정기)장치,개변기이론실속선적위치,사인풍궤적실제공작점원리기이론실속선.피면인풍궤출현실속현상.대과로인풍궤출현적실속문제진행분석탐토,제출인풍궤개조선형중응주의인풍궤실속유도적선취문제,가위금후전엄진행유사방면적개조제공차감.
For the retrofit of precipitation and flue gas desulfurization (FGD) system, stalling issue of the boiler axial-flow induced draft fan (IDF) was analyzed. By testing the running characteristic parameter of IDF at the scene, and combining with its characteristic curve, it was discovered that the actual working point of IDF nears its theory stall line, and stalling issue would appear during running. In order to make the actual working point of IDF keeping away from its theory stall line and avoid the stalling issue of IDF, KSE (the steady implement of function) equipment was installed at the entrance of the IDF to changing the position of IDF theory stall line. The stalling issue of IDF was analyzed and probed, and the problem that the stall margin selection should be considered carefully in IDF retrofit and type selection was presented, which gives some useful suggestion for the similar retrofit in power plant.