不同调节方式下二次风机低负荷运行能耗分析  

Secondary Fan's Energy Consumption Analysis Under Low-load with Different Adjustment Methods

作　　者：张文元 ZHANG Wen-yuan(Shanxi International Energy Group Co. ,Ltd. ,Taiyuan 030001,Shanxi Province)

机构地区：[1]山西国际能源集团有限公司,山西太原030001

出　　处：《沈阳工程学院学报（自然科学版）》2018年第2期122-125,148,共5页Journal of Shenyang Institute of Engineering:Natural Science

摘　　要：针对火电机组常年低负荷运行的现状,结合循环流化床机组二次风机不同调节方式下低负荷运行的数据,分析了风机运行的经济性及安全性。结果表明,对于入口挡板调节的风机,在50%负荷以下采用单台风机运行;对于液阻调节的风机,在70%负荷下采用单台风机运行;对于变频调节的风机,在全频段都采用双台风机并列运行。The operating efficiency and safety of the secondary fan of the circulating fluidized bed unit was analyzed according to the running performance curve of the fan and its operating characteristics under the variable operating conditions. The results showthat it is recommended to employ a single fan operation under 50% load for the entrance baffle adjustment fan,employ a single fan operation under 70% load for the liquid resistance adjust fan and employ parallel operation in full band for variable frequency controlled fans.

关 键 词：二次风机 低负荷运行 并列运行 节能 

分 类 号：TM621[电气工程—电力系统及自动化]