关键词：旋流泵 设计 水力计算
The pump of 80WZ70-12 Vortex Pump design
Abstract
This 80WZ70-12 Series Vortex Pump is a common specification. The series of free plug sewage pumps, mainly used in the transport of industrial wastewater and municipal sewage, the vortex impeller pump, no blocking performance, over capacity and long fiber particles by ability. Indoor particles in the pressurized water flow generated by rotating vortex impeller driven movement, suspended particles themselves do not produce energy, but in the flow channel and fluid exchange of energy. In the flow process, the suspended particles or long fibers and leaves do not touch, leaves the situation much less wear and tear, there is no gap increased due to erosion and the situation, in the long run will not result in a serious decline in efficiency, adopting the impeller type pump suitable for pumping large particles and long fibers containing medium. From a performance perspective, the lower impeller efficiency, equivalent to only 70% of normal closed impeller around, lift curve relatively flat. This article, in accordance with the pump design parameters, calculate the impeller, the hydraulic pressure structural parameters of the water room. According to security and reliability, standardization and implementation of standardized, rational identification and selection of motive power, sealed type, bearing body (bracket) structure, the coupling forms and materials of all parts and precision. Complete the design of paper (manual hydraulic calculation), assembly design and drawing of maps and map the major parts.
Key words : Vortex Pump Design Hydraulic calculation
