永磁驱动调速技术在引风机改造中的应用

Application of Permanent Magnet Drive Speed Regulation Technology in the Reformation of Lnduced Draft Fan

通过对液力耦合调速器、变频调速器和永磁驱动调速器优缺点的比较,采用永磁驱动调速技术对锅炉引风机进行改造,并对改造后的经济效益和安全性能进行了分析,改造后,机组运行振幅下降89%,噪音降幅20%,机组每年可节省费用71.2万元,1.5a即可收回投资,风机运行可靠性显著提高。

By comparing the advantages and disadvantages of the hydraulic coupling governor,the frequency conversion governor and the permanent magnet drive governor,the permanent magnet drive speed regulation technology is used to transform the induced draft fan of the boiler,and the economic benefits and safety after the transformation The performance was analyzed.After the transformation,the operating amplitude of the unit was reduced by 89%,and the noise was reduced by 20%.The unit could save 712 thousand yuan each year,and the investment could be recovered within 1.5 years,and the reliability of the fan operation was significantly improved.