4-68 type centrifugal fan of the structural characteristics of the machine No. 4-68 type fan NO2.8-5 allocated mainly by the impeller, housing, air inlet and other units directly connected electric motor, NO6.3-20 addition to the above section also There are parts of the transmission unit. 1) The impeller 12 by the tilting wing blade welded to the curved wheel cover in the middle of the plate-type roulette are carbon steel plate manufacturing, and after static and dynamic balance correction, air good performance centrifugal fan, high efficiency, smooth operation. 1) housing is welded with high-quality carbon steel plate snail shape. Housing made of two different forms, NO.2.8-12.5 cabinet made whole, can not open, NO16,20 enclosure made of two open along the carved were divided into two halves, bolted. 2) made convergent inlet streamline the overall structure, mounted on the side of the fan centrifugal fan 9-19, parallel to the axial cross-section shape of the curve, the gas can smoothly enter the impeller centrifugal fan 4-72, and the loss of the more small. 3) the transmission part of the spindle, bearing box, bearing, pulley or coupling components. (4) 4-68 type centrifugal fan performance and selection of the sample is given only No prototype dimensionless performance table and performance curve, thus the performance curve and the curve can be calculated No10 above table are dimensionless fan performance parameters. Fan performance generally refers to the performance of air transport in the standard state. When a state is a non-standard state, the performance of the non-standard state must be converted into state performance standards, and then select the fan according to terms of performance. 4-70 type centrifugal fan №.2.8 ~ 6 fans are allocated by the impeller, housing, air inlet and other units Direct motor and composition; №.7 ~ 12 in addition to a portion of the outer centrifugal fan parameters, as well as transmission parts Wait. 1) The impeller 10 by the sheet backward arc type blade, curved front plate and the plate after the plate components. They are made of steel plate, and by the dynamic and static balance correction, air good performance, high efficiency and smooth operation. 2) The air inlet formed integrally mounted on the fan side. Parallel to the axial cross-section shape of the curve, the gas can smoothly enter the impeller and smaller losses. 3) the transmission section 2 points from the spindle, bearing housing, bearings, pulleys composition. 4-79 centrifugal fan _ Teng-ho fans (certified) _ Hebei centrifugal fan is provided by Tang Hao Fan Manufacturing Co. Hebei. Hebei Teng Hao Fan Manufacturing Co. (www.thfengji.com) is a leader in Baoding, fans, ventilation equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Teng Hao Fan leadership with the staff warmly welcome all inquiries negotiations to create Teng-ho fans a better future.