Single-stage centrifugal pump is mainly used to achieve the function of drainage transport, it was born to help many sectors of the water transfer project to smooth progress, not only accelerated the development of these industries, but also to ensure that China's steady industrial production get on. Next will be single-stage centrifugal pump structure and structural characteristics to share. Single-stage centrifugal pump structure and structural features 1, the pump casing pump axial split and radial dosage two. Most single-stage centrifugal pump shell are volute, multi-stage centrifugal pump radial split shell is generally a circular shell or a circular shell. The general volute pump housing cavity was spiral-type runner. Used to collect the liquid from the impeller, and guide the diffuser to the pump outlet. Pump housing to withstand all the pressure of work and liquid heat load. 2, impeller impeller is the only part of the work, the pump through the impeller on the liquid work. Impeller structure type is closed, open, semi-open three. Closed impeller blades, front cover, rear cover composition. Semi-open impeller blades and cover from the composition. Open impeller blades only, no front and rear cover. Closed impeller high efficiency, low efficiency open impeller. 3, the seal ring The role of the seal ring is to prevent leakage within the pump and external leakage, made of wear-resistant seal ring material, set in the impeller front and rear cover and pump casing. Can be replaced after wear. 4, shaft and bearing pump shaft fixed impeller, one end mounted coupling. According to the size of the pump, the bearing cho chooses the rolling bearing and the sliding bearing. 5, shaft seal There are two general mechanical seal and packing seal. Pumps are generally set into both juice filling seal, but also can be installed mechanical seal. Through the above description of single-stage centrifugal pump structure, presumably the user must have a more understanding of the basic structure of single-stage centrifugal pump. The economy of our country is undergoing rapid development. Many areas are facing opportunities and challenges. If in the development of the industry can have a relatively good product was born, will certainly give the industry an incentive to stimulate development. For a single-stage centrifugal pump, it faces the market and pressure are not small, how to better grasp the future, need for all efforts and help.
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