V-shaped trash rack

Abstract

The invention provides a V-shaped trash rack, and belongs to the technical field of pump station trash blocking and cleaning. The V-shaped trash rack is formed by fixing two plane racks to a vertical column located at the V-shaped top end, wherein a certain angle is formed between the two plane racks. The plane racks are composed of rack bars 1, vertical beams 2 and boundary beams 3, and the rack bars are horizontally arranged. The included angle between two plane rack surfaces ranges from 30 degrees to 90 degrees, the included angle is small when the flow rate is small, and the included angle is large when the flow rate is large. The height of the V-shaped trash rack is larger than the water depth of an inside section which is provided with the V-shaped trash rack, the top end of the V-shaped trash rack is towards water current, and intercepted objects on the V-shaped trash rack slide and gather towards the V-shaped two sides along the rack bars of the plane racks. The area of the rack surface of the V-shaped trash rack is larger than the area of the rack surface of a planar trash rack. When water plants of the same size block the fronts of the racks, the unblocked open area of the V-shaped trash rack is large, and the trash blocking water head is small. The water plants in front of the V-shaped trash rack slide along the rack surface under the effect of the water current, gather on the two sides, and are close to a river bank, and then the water plants on bank sides can be conveniently cleaned by people in time. The V-shaped trash rack is adopted, a rack body is large in bearing capacity, a trash cleaning service bridge can be eliminated, and therefore engineering cost is reduced, running cost of a pump station host is reduced, and trash cleaning cost and workloads can be reduced.

Description

technical field [0001] The invention relates to a V-shaped trash rack, in particular to a small and medium-sized pumping station trash-stopping device, which belongs to the technical field of pumping station trash-stopping and cleaning. Background technique [0002] The trash rack installed in front of the pumping station can prevent dirt (mainly aquatic plants) from entering the pump and ensure the safe operation of the pump unit. The trash rack generally adopts a plane shape, and is placed in the diversion channel or in front of the pump station inlet pool (inlet flow channel) at an angle of 75° or 90° to the water surface. Large-scale pumping stations need to be equipped with cleaning work bridges and equipped with cleaning machines. Small and medium-sized pumping stations generally do not have cleaning equipment, and manual cleaning is required, which is difficult and dangerous, and the cleaning workload is heavy. For small and medium-sized rural pumping stations with ...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problems of the single-fan planar trash rack widely used in small and medium-sized pumping stations at present, such as large trash-blocking resistance and difficult cleaning, the present invention designs a trash-blocking rack with small trash-blocking resistance and easy cleaning through theoretical analysis, flow numerical simulation and experimental research. V-shaped trash rack for cleaning

Images