浙江电力
浙江電力
절강전력
ZHEJIANG ELECTRIC POWER
2015年
1期
44-47
,共4页
旋转煤粉分离器%转子叶片%有限元%应力%磨损
鏇轉煤粉分離器%轉子葉片%有限元%應力%磨損
선전매분분리기%전자협편%유한원%응력%마손
rotary type pulverized coal classifier%rotor blade%finite element%stress%abrasion
鉴于旋转煤粉分离器转子叶片的重要性及其工作环境的恶劣性,为研究旋转煤粉分离器转子叶片的应力分布及磨损程度,应用UG NX软件建立转子叶片的三维模型及有限元模型,结合分离器内部流场确定转子在工作转速时的载荷,应用UG NX内置Nastran解算器对其进行求解,得出转子叶片应力分布情况;根据磨损理论结合转子区域流场,分析了叶片的磨损速率,指出叶片上部磨损速率比下部大,是运行、检修的重点监护部位。
鑒于鏇轉煤粉分離器轉子葉片的重要性及其工作環境的噁劣性,為研究鏇轉煤粉分離器轉子葉片的應力分佈及磨損程度,應用UG NX軟件建立轉子葉片的三維模型及有限元模型,結閤分離器內部流場確定轉子在工作轉速時的載荷,應用UG NX內置Nastran解算器對其進行求解,得齣轉子葉片應力分佈情況;根據磨損理論結閤轉子區域流場,分析瞭葉片的磨損速率,指齣葉片上部磨損速率比下部大,是運行、檢脩的重點鑑護部位。
감우선전매분분리기전자협편적중요성급기공작배경적악렬성,위연구선전매분분리기전자협편적응력분포급마손정도,응용UG NX연건건립전자협편적삼유모형급유한원모형,결합분리기내부류장학정전자재공작전속시적재하,응용UG NX내치Nastran해산기대기진행구해,득출전자협편응력분포정황;근거마손이론결합전자구역류장,분석료협편적마손속솔,지출협편상부마손속솔비하부대,시운행、검수적중점감호부위。
In the light of the importance of rotor blade of rotary pulverized coal classifier and its harsh operat-ing environment, the paper investigates stress distribution of its rotor blade and the abrasion degree. 3D mod-el and finite element model of rotor blade is built by UG NX. Load of the rotor in working speed is determined through flow field in the classifier and solved by solver Nastran in UG NX. Therefrom, stress distribution of rotor blade is concluded. In accordance with abrasion theory and flow field of rotor, the paper analyzes abra-sion rate of the blade; it points out that the abrasion rate of the upper part is greater than that of the lower part and is the key part of monitoring during operation and maintenance.