CAJ | 학술논문

内蒙古京隆发电有限责任公司600 MW直接空冷机组在夏季高温时段背压较高，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；经计算选型，风机选用6叶片低噪声YPD叶型。更换新型叶片后，风机风量提高8%，功率降低6.4%，改善了空冷机组夏季高负荷期间背压过大状况，提高了风机运行的稳定性。改造方案可为其他空冷风机改造提供参考。
내몽고경륭발전유한책임공사600 MW직접공랭궤조재하계고온시단배압교고，궤조출력수조。침대차문제，경분석연구，설계출일충신형풍궤협편：협편적협근여협신설계위일체，보증료협편수력적련속전체，제고료협편적강도화강도；협편기체재질선용196S수지；협편성형후분별진행운전시험、피로시험、파배성시험등검측，이보증협편적안전운전；경계산선형，풍궤선용6협편저조성YPD협형。경환신형협편후，풍궤풍량제고8%，공솔강저6.4%，개선료공랭궤조하계고부하기간배압과대상황，제고료풍궤운행적은정성。개조방안가위기타공랭풍궤개조제공삼고。
The output of 600 MW direct air cooling unit in Inner Mongolia Jinglong Power Generation Co.,Ltd. was blocked because of higher backpressure in the high temperature period in summer. To solve the problem above, a new type of blade was designed. Blade root and blade body were designed as a whole to ensure continuously delivery the force to the blade, which improved the strength and stiffness of the blade;196S resin was selected as base material of the blade. Running tests, fatigue tests, destructive testing, etc. has been carried out to ensure the safe operation of the blade;after calculation and selection, 6 low noise YPD airfoil blades have been selected as the fan blades. After replacing the new blades, fan flow was increased by 8%, and power was decreased by 6.4%, the condition of large backpressure of the air-cooling unit was 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 other air cooling fans.