600MW直接空冷机组空冷风机叶片改造.pdfVIP

内蒙古 电力技术 2015年第33卷第5期 INNER MONGOLIA ELECTRIC POWER 61 doi：10．3969~．issn．1008—6218．2015．05．002 600MW直接空冷机组空冷风机叶片改造 常 屹。朱启春 ，肖 梁，窦喜平 (内蒙古京隆发电有限责任公司，内蒙古 乌兰察布 012100) ‘ … h l 一 一 摘要 ：内蒙4-京隆发电有限责任公司600MW直接空冷机组在夏季高温时段背压较高， I 机组出力受阻。针对此问题，经分析研究，设计出一种新型风机叶片：叶片的叶根与叶身设计 为一体 ，保证 了叶片受力的连续传递 ，提高了叶片的强度和刚度 ；叶片基体材质选用 196S树 ；脂；叶片成型后分别进行运转试验、疲劳试验、破坏性试验等检测，以保证叶片的安全运转；经 Modification on AirCoolingFan Bladeof600MW DirectAirCoolingUnit CHANGYi，ZHUQiehun，XIAOLiang，DOUXiping (InnerMongoliaJinglongPowerGenerationCo．，Ltd．，Ulanchab 012100，China) nglong high designed．Blade rootand blade body were designed as a whole to ensure continuously delivery the force to the blade，which improved the strength and stiffness ofthe blade； 196S resin was selected as base material of the blade．Running tests， fatigue tests， destructive testing，etc．has been ca~ied outto ensure the safe operation of the blade； aftercalculation and selection，6 low noise YPD airfoilblades have been selected asthe fan blades．Afterreplacingthenew blades，afn flow wasincreased by 8％，and powerwas decreased by 6．4％ ，the condition of large backpressure of the ai卜cooling unitwas ． improved during the heavy load period …in summer and the stability of the fan was improved．This rehabilitation program can 。provide a reference for the transformation of otheraircoolingfans． Key words：600MW directaircooling unit；