No_4—6.3主要由叶轮、机壳、进风口、支架等组成;N07.1—16主要由叶轮、机壳、进风口、传动组等组成。
叶轮:9—19型风机叶片为12片,9—26型风机叶片为16片。均属前向弯曲叶型。叶轮扩压器外缘圆周速度不超过140m/s。叶轮成型后
经静、动平衡校正,故运转平稳。
机壳:用普通钢板焊接成蜗型壳整体。
进风口:做成收敛式流线型的整体结构,用螺栓固定在前盖板组成。
传动组:由主轴、轴承箱、联轴器等组成。主轴由优质钢制成,轴承箱整体结构,采用滚动轴承,用轴承润滑脂润滑。
Fan of N_04—6 3 is mainly consists of impeller,enclosure,air inlet,suppod,etc.;fan of N_07 1—16 is mainly consists of impeller,enclosure,
air inlet,driving unit,etc..
Impeller:fan Of 9—1 9 type has 1 2 impellers.9-26 type has 1 6 impellers.all are forward direion bending types Outer edge of impeller diffuser not over 1 40m/s.The impellers have accepted static.dynamic balance calibration,SO they are able to run smoothly.stably.
Enclosure:it is made of general steel sheets by welding,it is a scroll casing.
Air inlet:it is made into an integral struure with convergence streamline,it is fixed by bolt on the front plate
Driving unit:it is consists of principal shaft,bearing housing,coupling,etc..The principal shaft is made of high—quality steel,bearing housing has integral struure,adopting rolling bearing.bearing grease for lubrication.
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