CN216379363U

CN216379363U - System for directly intercepting sewage from rainwater outlet in river channel

Info

Publication number: CN216379363U
Application number: CN202123242050.5U
Authority: CN
Inventors: 张鸿涛; 李天增; 韩志伟; 向莹; 穆晓明
Original assignee: Qing Control Environment Beijing Co ltd
Current assignee: Qing Control Environment Beijing Co ltd
Priority date: 2021-12-22
Filing date: 2021-12-22
Publication date: 2022-04-26
Anticipated expiration: 2031-12-22

Abstract

The utility model discloses a system for directly intercepting sewage from a rainwater outlet in a river channel, which is characterized in that a water outlet (3) is arranged at the position of a river channel side slope (2) of a rainwater pipeline (1) entering the river channel; an open sewage intercepting channel (4) is formed in the intersection of the water outlet and the river slope, and the water flow direction of the sewage intercepting channel is perpendicular to the water outlet direction of the water outlet; a sewage collecting well (5) is arranged on one side of the water outlet; an artificial grating (6) is arranged at the outlet of the sewage intercepting channel; and a sewage intercepting pipe (7) is connected behind the sewage intercepting pipe (4). The utility model is a sewage interception facility with an opening arranged on the side slope of the river channel, which can effectively intercept and collect sewage and prevent drainage facilities excessively protruding in the river channel from obstructing the flood of the river channel in rainy season; the device can also be used as a simple emergency facility to collect dry season sewage with unknown source discharged from a rainwater outlet.

Description

System for directly intercepting sewage from rainwater outlet in river channel

Technical Field

The utility model relates to the field of urban drainage, in particular to a system for directly intercepting sewage from a rainwater outlet in a river channel.

Background

In urban drainage systems, rain and sewage diversion is a commonly used mode. In some old cities, because a new rainwater and sewage diversion pipeline cannot be laid in an insufficient space, the system can be continuously used, but before the system is discharged into a river channel, an overflow well needs to be arranged to intercept sewage in dry seasons into a sewage interception dry pipe and finally enter a sewage treatment plant, so that the sewage can be treated to the maximum extent.

However, for some unknown reasons, sewage from some unknown sources often flows out of the rainwater outlets at the edge of the river channel and enters the river channel, so that the river channel is polluted to influence the landscape of the river channel, and the pollution is particularly obvious in the river channel in northern dry seasons.

The conventional mode of carrying out sewage damming from rainwater pipeline or confluence system pipeline of prior art sets up rainwater overflow well (also called vatch basin) at the river bank to design the sewage conduit after holding back according to holding back multiple. Because of some occasions, the bank of the river channel does not have enough space or is not suitable for arranging the sewage intercepting well.

The special situation that exists in the town actual engineering in north at present is that, the reposition of redundant personnel of rain and sewage has already been shaped, and the reposition of redundant personnel of rain and sewage system has already been built the shaping promptly, nevertheless because some unknown reasons, often has the sewage of some unknown sources to flow out from the rainwater delivery port of river course limit and gets into the river course, leads to the river course to be polluted the influence river course view, and is especially obvious in the river course when north dry season.

The method aims at the two conditions that the inflow of the dry season sewage caused by unknown reasons in the rainwater pipeline and the pollution to the river channel cannot be avoided, measures for intercepting the dry season sewage need to be taken, and the method is used for overcoming the technical problems that some river channels are not provided with enough space to be provided with overflow intercepting wells or are not suitable for building shore intercepting well facilities.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a system for directly intercepting sewage from a rainwater outlet in a river channel, which overcomes the problems in the prior art, ensures that the sewage in dry seasons which leaks into a rainwater pipe system for some unknown reason and is discharged into the river channel at the rainwater outlet is properly intercepted and effectively treated.

The purpose of the utility model is realized by the following technical scheme:

a system for directly intercepting sewage from a rainwater outlet in a river channel is characterized in that a water outlet is formed in the position, entering the river channel side slope, of a rainwater pipeline; a groove is formed at the intersection of the water outlet and the river slope to form an open sewage intercepting channel, and the water flow direction of the sewage intercepting channel is perpendicular to the water outlet direction of the water outlet; a sewage collecting well is arranged on one side of the water outlet;

an artificial grid is arranged at the outlet of the sewage intercepting channel;

a sewage intercepting pipe is connected behind the sewage intercepting channel and communicated with the sewage collecting well; the sewage collecting well is communicated with a sewage pipe network system.

Preferably, the canal wall outside the sewage intercepting canal is a water retaining overflow weir; the weir top of the water retaining overflow weir and the splayed water outlet are at the same height.

Preferably, the system for directly intercepting the sewage from the rainwater outlet in the river channel is of an open design.

Preferably, the water outlet is a splayed water outlet;

in another mode, the water outlet is a straight water outlet; the system for directly intercepting sewage from the rainwater outlet in the river channel is arranged at the bottom of the river.

Compared with the prior art, the utility model has the following beneficial technical effects:

the utility model discloses a system for directly intercepting sewage from a rainwater outlet in a river channel, which is a dry season sewage interception facility arranged on the lower side of the rainwater outlet in the river channel, wherein the facility can be positioned on a side slope of the river channel or at the bottom of a dry river in dry seasons, the intercepted sewage can be collected and accessed into a nearby sewage collection well or a sewage lifting well arranged on the side slope of the river channel, and the sewage enters a sewage pipe network system after being lifted and finally enters a sewage treatment plant system. Finally, the dry season sewage which is leaked into the rainwater pipe system for some unknown reason and discharged into the river channel at the rainwater outlet is properly intercepted and effectively treated.

Drawings

FIG. 1 is a schematic view of the structure of the present invention

FIG. 2 is a top view of FIG. 1

Numbering in the figures: 1-rainwater pipeline, 2-river slope, 3-water outlet, 4-sewage intercepting channel, 5-sewage collecting well (sewage lifting pump well), 6-artificial grid, 7-sewage intercepting pipe, 8-water retaining overflow weir, 9-river bottom

Detailed Description

As shown in fig. 1 and 2, in the system for directly intercepting sewage from a rainwater outlet in a river channel, a water outlet 3 of a rainwater pipeline 1 at a position of a river channel side slope 2 entering the river channel is a splayed water outlet, a groove is formed at the intersection of the splayed water outlet 3 and the river channel side slope 2 to form an open sewage intercepting channel 4, and the water flow direction of the sewage intercepting channel 4 is vertically arranged along the water outlet direction of the splayed water outlet 3; in dry seasons, the sewage flow in the rainwater pipeline 1 is relatively small, and the sewage intercepting canal 4 can be directly intercepted to the sewage collecting well 5 on one side of the splayed water outlet, namely the sewage lifting pump well.

An artificial grating 6 is arranged at the outlet of the sewage intercepting channel 4 to prevent large sundries from entering a subsequent sewage pipe system; the sewage intercepting canal 4 is followed by a short section of sewage intercepting pipe 7, which connects the sewage to the nearby sewage collecting well 5, whereafter the sewage can be fed into the adjacent sewage piping system.

The canal wall outside the sewage intercepting canal 4 is also provided with a water-retaining overflow weir 8, so that sewage can be intercepted, and meanwhile, when the flow in rainy seasons is large, large-flow rainwater can cross the water-retaining overflow weir 8 and be discharged into a river channel; the weir top of the water retaining overflow weir 8 and the splayed water outlet 3 are at the same height.

The whole sewage interception facility is designed to be open, so that sewage can be intercepted in dry seasons, and rainwater can submerge and flow out in rainy seasons, so that normal flood can not be influenced.

The diameter of a rainwater pipeline of the splayed water outlet is 300-1500 mm;

the size of the sewage intercepting canal can be 200 mm x 200 mm-400 mm x 400 mm according to the unknown sewage flow design in dry seasons investigated on site. The sewage intercepting pipe connected behind the sewage intercepting canal also needs to be designed according to the unknown sewage flow in dry seasons investigated on site, and the diameter of the pipeline is 200-400 mm.

The gaps between the bars of the artificial grating are 5-20 mm.

In another embodiment, the rainwater outlet 3 is a straight-line type outlet, and under the condition that no water exists at the bottom of a riverway in dry seasons, sewage interception facilities can be arranged at the bottom 9 of the riverway.

The system of the embodiment has the advantages that:

the utility model discloses a sewage interception facility with an opening arranged on a river channel slope, which can effectively intercept and collect sewage and prevent a drainage facility with an excessively raised part in a river channel from obstructing river channel flood in rainy seasons.

The utility model can also be used as a simple emergency facility for collecting dry season sewage of unknown source discharged from the rainwater outlet.

Claims

1. A system for directly intercepting sewage from a rainwater outlet in a river channel is characterized in that a water outlet (3) is formed in a position, entering a river channel side slope (2) of the river channel, of a rainwater pipeline (1); an open sewage intercepting channel (4) is formed in a groove at the intersection of the water outlet (3) and the river channel side slope (2), and the water flow direction of the sewage intercepting channel (4) is perpendicular to the water outlet direction of the water outlet (3); a sewage collecting well (5) is arranged on one side of the water outlet;

an artificial grating (6) is arranged at the outlet of the sewage intercepting channel (4);

the back of the sewage intercepting canal (4) is connected with a sewage intercepting pipe (7), and the sewage intercepting pipe (7) is communicated with the sewage collecting well (5).

2. The system for intercepting sewage directly from a storm water outlet in a river according to claim 1 wherein the wall outside the sewage intercepting channel (4) is a water retaining overflow weir (8); the weir top of the water retaining overflow weir (8) and the water outlet (3) are at the same height.

3. The system of claim 1, wherein the system for intercepting wastewater directly from a stormwater outlet in a river channel is of open design.

4. A system for intercepting sewage directly from a storm water outlet in a river according to claim 1, 2 or 3 wherein said outlet (3) is a splayed outlet.

5. The system for intercepting sewage directly from a rainwater outlet in a river according to claim 4, wherein the rainwater pipeline diameter of the splayed outlet is 300-1500 mm.

6. The system for intercepting sewage directly from a storm water outlet in a river according to claim 1 wherein said sewage intercepting canal (4) is 200 mm x 200 mm to 400 mm x 400 mm; the diameter of the sewage interception pipe (7) is 200 mm-400 mm; the gaps between the bars of the artificial grating (6) are 5-20 mm.

7. The system for intercepting sewage directly from a storm water outlet in a river according to claim 1 wherein said outlet (3) is a straight outlet; the system for directly intercepting sewage from the rainwater outlet in the river channel is arranged at the river bottom (9).

8. A system for intercepting sewage directly from a storm water outlet in a river according to claim 1 wherein said sewage collection well (5) is in communication with a sewer network system.