Pump body of vertical pipeline pump capable of reducing hydraulic losses

Abstract

The invention discloses a pump body of a vertical pipeline pump capable of reducing hydraulic losses. The pump body comprises a water suction chamber cavity, a water inlet pipeline and a water outletpipeline. The inner wall, opposite to a water inlet of the water suction chamber cavity, in an inner cavity of the water inlet pipeline extends inwards to form a flow guide cone structure; an inlet partition plate which extends along the pipeline and equally divides the pipeline into two channels is arranged in the middle of the inner cavity of the water inlet pipeline; a water suction chamber partition plate extending from the water inlet of the water suction chamber cavity to a flow guide cone is arranged on the inner wall, opposite to the water inlet of the water suction chamber cavity, inthe inner cavity of the water inlet pipeline, and the upper end of the water suction chamber partition plate is an upper slope extending from the water inlet of the water suction chamber cavity to themiddle of the flow guide cone; and the two sides of the water suction chamber partition plate are side slopes extending downwards from the upper slope to the inner wall of the water inlet pipeline. According to the pump body of the vertical pipeline pump, flowing of fluid at an inlet of an impeller is improved, vortexes at the bottom are eliminated, the hydraulic losses are reduced, and the efficiency of the pump is improved.

Description

technical field [0001] The invention relates to a pump body of a vertical pipeline pump for reducing hydraulic loss, belonging to the field of vertical pipeline pumps. Background technique [0002] Pipeline pump is a kind of single-stage single-suction or multi-stage centrifugal pump. It is of vertical structure and can be conveniently installed in the middle of the transportation pipeline as a booster delivery pump. It is widely used. The structure of the traditional pipeline pump includes a water absorption chamber cavity, a water inlet pipeline communicated with the axially lower end of the water absorption chamber cavity, and a water outlet pipeline communicated with the side wall of the water absorption chamber cavity; the inlet center of the water inlet pipeline The line connecting the outlet center of the water outlet pipe is perpendicular to the axis of the water suction chamber cavity; therefore, the water inlet pipe in the traditional pipeline pump adopts a 90-degr...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem that the water inlet pipe in the traditional pipeline pump adopts a 90-degree elbow structure, which leads to uneven velocity distribution of the liquid flow in the elbow-type flow channel, large hydraulic loss, and a circular velocity around the impeller inlet. The difference is large, the pressure distribution is uneven, and there is a pressure difference, which has a certain impact on the cavitation and efficiency of the pump

Images