Drainage four-way inspection well to prevent water flow hedging

Abstract

The invention discloses a water drainage cross inspection well preventing water face-to-face flushing, belongs to the field of water drainage projects and particularly relates to a rainwater and sewage convergence water drainage structure. The well is an intersection inspection well applicable to a rainwater or sewage pipeline. Branch pipes on the two sides of a water drainage pipeline are connected into the inspection well through sluices with large cornering radius, the sluices of the branch pipes on the two sides are spaced from a sluice of an upstream pipeline, and the included angle of afflux of the three sluices is small. The inspection well can prevent face-to-face flushing of water entering the inspection well, reduce turbulence flow to stabilize the water and bring the water drainage efficiency of the intersection inspection well into full play, thereby reducing the frequency of waterlogging of urban roads.

Description

technical field

[0001] The invention relates to a drainage four-way inspection well for preventing water flow from colliding, and belongs to the field of drainage engineering, in particular to a drainage structure for the confluence of rainwater and sewage. Background technique

[0002] Urban rainwater drainage is generally organized drainage. The rainwater on the ground is collected and discharged to the rainwater pipe through the runoff, and then discharged into the natural water body through the rainwater pipe system. Most of the urban rainwater pipeline system is laid along the road, and the urban roads criss-cross. The rainwater from the units or residential areas on both sides of the road is connected to the urban rainwater pipeline through the three-way inspection well or the four-way inspection well. When designing urban rainwater pipelines, designers generally use standard drawings. For the four-way inspection well in the current national standard diagram "06MS201 ...

Examples

Embodiment 1

[0016] Embodiment 1: For the plan view of the masonry type four-way inspection well, see figure 1 According to the pipe diameters of the downstream pipe 7, the upstream pipe 8, the left branch pipe 9, and the right branch pipe 10, as well as the angle α between the branch pipes and the radius R, the dimensions of each part are determined. Connected, that is, the inner top of the water inlet and outlet pipes are the same height. Increasing the included angle α can reduce the size of the inspection well, but the water flow conditions will become worse. figure 1 The included angle α in is 20°. The well body 1 is built with bricks, and the distance between the knuckles of the well body 1 at the downstream pipe 7, the left branch pipe 9, and the right branch pipe 10 and the inner diameter of the pipe should be ≥ 150mm. Isolation platform 6 and workbench 11 are poured with formwork concrete, and the catchment trough 2, upstream trough 3, left trough 4, and right trough 5 should be...

Embodiment 2

[0017] Embodiment 2: In addition to the masonry type, the drainage four-way inspection well to prevent water flow hedging can also make the launder into plastic pipe fittings. The catchment launder 2 can be replaced by launder pipe fittings 21, which are arranged in the well body 1, and the upstream flow Groove 3, left trough 4, and right trough 5 can be replaced by upstream straight pipe 31, left curved pipe 41, and right curved pipe 51 respectively, which are arranged outside the well body 1 and correspond to the launder pipe fittings 21 respectively. The interface is connected, and the size of the well body 1 can be greatly reduced. The branch pipes on both sides and the upstream main pipe are separated by pipe fittings and flow into the inspection well at a small angle. The water flow condition is good, the well body size is relatively small, and the construction is convenient. For the plan view of the pipe-fitting four-way inspection well, see Figure 4 , the side branch...

technical field

[0001] The invention relates to a drainage four-way inspection well for preventing water flow from colliding, and belongs to the field of drainage engineering, in particular to a drainage structure for the confluence of rainwater and sewage. Background technique

[0002] Urban rainwater drainage is generally organized drainage. The rainwater on the ground is collected and discharged to the rainwater pipe through the runoff, and then discharged into the natural water body through the rainwater pipe system. Most of the urban rainwater pipeline system is laid along the road, and the urban roads criss-cross. The rainwater from the units or residential areas on both sides of the road is connected to the urban rainwater pipeline through the three-way inspection well or the four-way inspection well. When designing urban rainwater pipelines, designers generally use standard drawings. For the four-way inspection well in the current national standard diagram "06MS201 ...

Examples

Embodiment 1

[0016] Embodiment 1: For the plan view of the masonry type four-way inspection well, see figure 1 According to the pipe diameters of the downstream pipe 7, the upstream pipe 8, the left branch pipe 9, and the right branch pipe 10, as well as the angle α between the branch pipes and the radius R, the dimensions of each part are determined. Connected, that is, the inner top of the water inlet and outlet pipes are the same height. Increasing the included angle α can reduce the size of the inspection well, but the water flow conditions will become worse. figure 1 The included angle α in is 20°. The well body 1 is built with bricks, and the distance between the knuckles of the well body 1 at the downstream pipe 7, the left branch pipe 9, and the right branch pipe 10 and the inner diameter of the pipe should be ≥ 150mm. Isolation platform 6 and workbench 11 are poured with formwork concrete, and the catchment trough 2, upstream trough 3, left trough 4, and right trough 5 should be...

Embodiment 2

[0017] Embodiment 2: In addition to the masonry type, the drainage four-way inspection well to prevent water flow hedging can also make the launder into plastic pipe fittings. The catchment launder 2 can be replaced by launder pipe fittings 21, which are arranged in the well body 1, and the upstream flow Groove 3, left trough 4, and right trough 5 can be replaced by upstream straight pipe 31, left curved pipe 41, and right curved pipe 51 respectively, which are arranged outside the well body 1 and correspond to the launder pipe fittings 21 respectively. The interface is connected, and the size of the well body 1 can be greatly reduced. The branch pipes on both sides and the upstream main pipe are separated by pipe fittings and flow into the inspection well at a small angle. The water flow condition is good, the well body size is relatively small, and the construction is convenient. For the plan view of the pipe-fitting four-way inspection well, see Figure 4 , the side branch...

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