A split channel type pumping station regulating pool

Abstract

The invention discloses a distribution groove channel type pump station regulating pool. The regulating pool comprises a regulating pool body of which the outer outline is rectangular, the water inlet end of the regulating pool body is connected with a water inlet pipe (1), the water outlet of the regulating pool body is connected with a pump station front pool (8), a roundabout type flow groove (2) which is communicated with the water inlet end and the water outlet end is formed in the regulating pool body by the partition of a partition wall (3), and a diversion plate (4) for distribution and a vertical partition plate (5) for adjusting a flow velocity are arranged in the flow groove (2). According to the distribution groove channel type pump station regulating pool, on one hand, groove channel distribution is adopted, the turning radius of water flow at a 90-degree bend and the turning radius of the water flow at a 180-degree bend are reduced, the partial hydraulic loss when the water flow turns is reduced, and the flow velocity distribution in the flow groove is uniform; one the other hand, through the additional arrangement of the flow guide plate and the vertical partition plate, the flow distribution and flow velocity distribution when the water flow turns are improved, the water flow velocity at the bottom of the flow groove is increased, and the water flow sediment carrying capacity at a high water level is improved.

Description

technical field [0001] The invention relates to a diversion channel type pumping station regulating tank, in particular to a pumping station regulating tank which prevents sediment deposition by carrying sediment movement with diverting channel water flow, and belongs to the technical field of pumping station engineering of urban water supply and drainage systems . Background technique [0002] In the design of urban pumping stations, in order to adjust the water demand in different regions and at different times, ensure the smooth operation of the pumping station under special working conditions, and adjust the water supply of the pumping station under specific circumstances, the pumping station water intake system is often arranged with adjustment pool. Under normal circumstances, the capacity of the regulating tank of the pumping station is relatively large, and the flow rate of the water flow is relatively low. When the sediment (or suspended solid particles) in the wat...

AI Technical Summary

Problems solved by technology

[0003] At present, in the regulating pool of the pumping station, the regulating pool in the form of a groove is used to prevent sedimentation by water flow, that is, the regulating pool is designed as a strip-shaped groove, and the bottom of the groove is designed as a semi-arc shape. By increasing the flow rate at the bottom of the groove To enhance the sand-carrying capacity of the water flow at the bottom of the regulating pool, this type of regulating pool has a large flow rate per unit width, a large local hydraulic loss at the turning, a relatively long flow process, and a large hydraulic loss along the way. The head of the regulating pool and The drop in the water surface at the tail is relatively large, and the space utilization rate is relatively low, which may affect the regulation and storage capacity of the regulating tank of the pumping station

Images