Intake and exhaust blower structure of a rectangular outlet structure - the traditional form, with two rectangular vents on the chassis, respectively, for the fan intake and exhaust purposes. 2, shaped vent structure - the design, manufacture are relatively simple, widely used. 3, pre-intake structure - slit open before the exhaust, intake air flow path through the pre-import volume of high pressure gas to the primitive to the internal pressure in advance with the exhaust pressure to balance the high-pressure water-cooled Roots blower, thereby reducing the reflux impact strength and reduce noise. Characteristics of a Roots blower, due out in the form of clover with a rotor structure and reasonable housing outlet structure, so a small high pressure blower fan vibration, low noise. 2, the overall structure of the impeller and shaft and impeller wear small saving blower, fan performance enduring, long-term continuous operation. 3, complete models to meet the needs of different users for different purposes. Roots blower fan is widely used throughout the petrochemical, building materials, electricity, metallurgy, fertilizer, mining, ports, textile, food, paper, aquaculture and wastewater treatment, environmental protection industry and many other areas, mostly for air transport, can also be used to transport gas, hydrogen, acetylene, carbon dioxide and other flammable, explosive and corrosive gases. Energy efficient blower | blower | Zhucheng East Han Machinery Co., Ltd. is provided by Zhucheng East Han Machinery Co. Zhucheng East Han Machinery Co., Ltd. (www.dhlcfj.com) (www.dhlcfj.com) strong, credible, Shandong Weifang fan, ventilation equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead the East Han Machinery Co., Ltd. Zhucheng and you hand into the brilliant, for a better future!