A circular pump station sump with uniform water distribution device

Abstract

The invention discloses a circular pump station water collecting tank with a uniform water distribution device. The circular pump station water collecting tank is divided into an upper layer structureand a lower layer structure, wherein the lower layer structure comprises a water inlet tank culvert and a water distribution tank culvert, the upper layer structure comprises a water pump water inletflow channel, a separation pier and a water pump unit, and the upper layer structure and the lower layer structure are connected through the uniform water distribution device; the uniform water distribution device is composed of flow guide plates, support stand columns and press plates, the flow guide plates comprise the horizontal flow guide plate and the longitudinal flow guide plate which areperpendicularly and crosswise arranged, and the press plates comprise the first layer of press plate, the second layer of press plate and the third layer of press plate which are arranged in a gradingmode from bottom to top. According to the water collecting tank, the backflow and rotational flow states of bottom water flow are effectively improved, and flow distribution of an upstream face and adownstream face is uniformized; through the three layers of press plates which are arranged in the grading mode, water flow of the upper layer of the water collecting tank is uniformly diffused to the periphery in the plane direction, and the flow is uniformly distributed in the vertical face direction, so that the purpose of uniform outflow of a pump station is realized, the inflow condition ofa water pump is improved, and the safe and efficient operation of the water pump is ensured.

Description

technical field [0001] The invention relates to a circular pumping station sump provided with a uniform water distribution device, belonging to the technical field of urban water supply and drainage pumping station engineering. Background technique [0002] In urban water supply and drainage pumping stations, the sump is a water-passing structure connecting the inlet pipe culvert and the pump unit. The quality of the water flow in the sump is directly related to the safe and efficient operation of the pump. The sump is usually arranged in the form of a forward sump, a side sump, etc. When there are adverse flow states such as bias flow, backflow, and vortex in the sump, diversion piers, bottom sills, deflectors, etc. are arranged in the sump to rectify Measures can better adjust the water flow in the sump, so that the water pump can obtain good inflow conditions, so as to ensure the safe and efficient operation of the water pump unit. However, limited by urban land use and ...

AI Technical Summary

Problems solved by technology

However, limited by urban land use and inflow and outflow conditions, some pump stations may adopt a circular sump layout with one-sided pipe culvert inflow and circumferential outflow around. Uniform, partial flow and other phenomena, so that the water pump inflow conditions are not good

Due to the circumferential outflow of the water flow, it is difficult to effectively adjust the flow velocity distribution in the circular sump using traditional rectification measures, and the stable and efficient operation of the pump is greatly challenged.

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