Method for improving flow distribution evenness of oblique inflow box culvert of city pump station
A technology of flow distribution and uniformity, which is applied in the field of improving the flow distribution uniformity of the oblique inflow box culvert in urban pumping stations, and can solve the problem of uneven distribution of the influent flow of each hole of the box culvert, biased inflow of the fore pond of the pumping station, affecting the pumping station. Safety and stability and other issues, to achieve the effect of improving the uniformity of flow distribution, easy production and simple structure
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Embodiment 1
[0034] This embodiment has the schematic diagram of the plane and elevation structure dimensions of the composite rectifying device proposed by the present invention as figure 2 , 3 As shown, the floor plan of the drainage pumping station is as follows Figure 4 shown.
[0035] The overall length of the gate well 2 is L=16m, and the width W=10m. The inlets of the water inlet box culvert 1 and the first and second diffusion box culverts are square with side length B=4m. The width of the rectangular area of the gate well W1=5m, trapezoidal The angle between the hypotenuse wall of the area and the side wall of the rectangular area connected to it is α=135°, the angle between the center line of the water inlet box culvert 1 and the gate well 2 is θ=45°; the beam is facing the water inlet hole of the diffusion box culvert And the distance between them is W2=2.4m, two beams are arranged vertically, the section width of a single beam is B1=0.6m, the height H1=0.8m, the vertical ...
Embodiment 2
[0037] The composite rectifying device described in this embodiment differs from Embodiment 1 in that: the width W1 of the rectangular area of the gate shaft is W1 = 4m, and the included angle α between the oblique side wall of the trapezoidal area and the side wall of the connected rectangular area = 140 °, the angle between the center line of the water inlet box culvert and the gate well θ=40°; the beam is facing the water inlet hole of the diffusion box culvert and the distance between them is W2=2m, the cross-sectional width B1=0.2m of a single beam, and the height H1= 1.2m, the vertical distance between two adjacent crossbeams H2=2m, the radius of the two corners of the crossbeam facing the inflow of the gate well R=0.1m; the width of the diversion pier B2=0.5m, the length of the diversion pier a4 L1 =5m and the distance between the head and the crossbeam C1=3m, the length of the diversion pier b5 L2=4m, the distance between the head and the crossbeam C2=2.5m, and the di...
Embodiment 3
[0039] The composite rectifying device described in this embodiment differs from Embodiment 1 in that: the width W1 of the rectangular area of the gate shaft is W1 = 6m, and the included angle α between the oblique side wall of the trapezoidal area and the side wall of the connected rectangular area = 130 °, the angle between the center line of the inlet box culvert and the gate well is θ=50°; the beam is facing the inlet hole of the diffusion box culvert and the distance between them is W2=4m, three beams are arranged vertically, and the section width of a single beam is B1=1m, height H1=0.4m, vertical distance between two adjacent crossbeams H2=0.4m, the radius of the two corners of the crossbeam facing the inflow of the gate well R=0.15m; the width of the diversion pier B2=0.2 m, the length of diversion pier a4 is L1=3m and the distance between its head and crossbeam C1=2m, the length of diversion pier b5 is L2=3m, the distance between its head and crossbeam is C2=1m, and ...
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