[Asia Pump Network News] Impeller Fluorine plastic centrifugal pump is an important part of the pump is also a key component. According to different structure, the fluorine plastic centrifugal pump impeller can be divided into different types, the following is about the pump impeller classification, as follows: Fluoroplastic centrifugal pump impeller classification (1) According to its mechanical structure can be divided into closed, Semi-closed and open three. Closed impeller for conveying cleaning fluid; semi-closed and open impeller for conveying solids containing suspension, such pumps are inefficient. Closed and semi-closed impeller in operation, part of the impeller away from the high-pressure liquid can leak into the cavity between the impeller and the pump housing, because the impeller inlet pressure liquid front is low, so the liquid on the impeller before and after Side of the pressure range, they have to point to the impeller suction side of the axial thrust. The force to promote the impeller to the suction port side of the move, causing the impeller and the pump shell contact at the wear and tear, serious pump vibration caused damage to the normal operation of the pump. Drilling a number of small holes in the impeller rear cover reduces the pressure differential across the impeller, reducing the adverse effects of axial thrust while reducing pump efficiency. These holes are called balance holes. (2) According to the different liquid suction method, the impeller can be divided into single suction type and double suction type. The single suction type impeller has a simple structure and the liquid can only be sucked in from one side. Double-suction impeller can absorb fluid symmetrically from both sides of the impeller at the same time, which not only has a larger suction capacity, but also basically eliminates axial thrust. (3) According to the geometry of the blade on the impeller, the blade can be divided into three kinds after bending, radial and forward bending, which is widely used because kinetic energy of the back bending blade is converted to static pressure energy. Read more: China Building Water Exhibition Pump Valve Tube Fittings Exhibition Water Expo Xiamen Maritime Exhibition Internet + Forum Yiwu Expo Industry Interconnection (Xiamen) Technology Co., Ltd. Asia Pump Network Editor: He Duanhui (QQ / WeChat: 2355962924) http://beng.liuti.cn/ (service hotline: 400-6030-811)
