Host by cast iron rotary fan casting, metal ring 2 (or spring 8), host a rotary axis wind turbine production and supply, a rotor vane 4, an eccentric cylinder, pump cover 2 Composition Direct rotary fan, which fan metal ring, rotor vane pump cover and cylinder rotating eccentric fan wholesale phone, wear-resistant castings produced by the host axis by 45 # steel manufacturing. rotary vane blower 4 embedded in the aliquot inner rotor, rotary fan shaft fastened in the rotor center shaft with bearings at both ends of the front and rear cover-attachment pump installed on an eccentric cylinder rotating fans, the rotor case and 4 embedded in the rotor vane and cylinder body wall forming four volumes ranging from space, rotary blower running, pushing the metal ring or spring slide along the cylinder wall uniform motion, rotary blower block by suction, suction port guide gas tank, exhaust air intake and exhaust ports gas guide groove formed a working process rotary fan by: intake stroke, compression stroke, exhaust stroke three parts rotary fan rotation when the rotor vane groove 4 reciprocate. , air is sucked into, compressed, is discharged to form the fan. Rotating fan performance test methods: the study of small rotary fan performance testing, full use of existing wind chamber outlet type rotary fan performance test device, into the modern virtual instrument technology, virtual instrument DAQ data acquisition module, Based on the establishment of a rotary fan performance PC-automatic acquisition system. The system can automatically collect original parameter rotary fan i.e. dynamic pressure, static pressure, torque, speed, temperature, and calculate the corresponding flow, efficiency, shaft power and draw a change in the pressure, the efficiency, with the flow rate of the shaft power There are dimensionless and dimensionless curves, curves printout and data reports. Rotary blower production and supply, Zhucheng East Han Machinery Co., Ltd. (certified), rotary blower provided by Zhucheng East Han Machinery Co. Zhucheng East Han Machinery Co., Ltd. (www.dhlcfj.com) is an industry leader in Shandong Weifang, 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. In Zhucheng East Han Machinery Co. led the staff warmly welcome all inquiries negotiations to create Zhucheng East Han Machinery Co., a better future.