CN202831175U

CN202831175U - Connection structure of urban rainwater and sewage pipelines

Info

Publication number: CN202831175U
Application number: CN201220488840.3U
Authority: CN
Inventors: 高学珑
Original assignee: Fuzhou Planning Design and Research Institute
Current assignee: Fuzhou Planning And Design Institute Group Co ltd
Priority date: 2012-09-24
Filing date: 2012-09-24
Publication date: 2013-03-27
Anticipated expiration: 2022-09-24

Abstract

The utility model relates to a connection structure of urban rainwater and sewage pipelines. The connection structure of the urban rainwater and sewage pipelines comprises a sewage discharge pipe of a building and a gutter inlet, and is characterized in that the sewage discharge pipe of the building is connected with a sewage discharge header pipe, the gutter inlet is connected with the sewage discharge header pipe through a pipeline, and a sewage outlet of the sewage discharge header pipe is connected with a confluence tube of a flow closure well. A sewage closure pipe of the river closure well leads to a sewage treatment plant, and an overflow pipe of the flow closure well leads to a river way. The structure can avoid the pollution of sewage to the river way when in sunny days, can lower the workload of the sewage treatment plant, and most importantly, can greatly reduce the pollution of rainwater and sewage mixed flow to the river way.

Description

The dirty pipe connecting structure of city rain

Technical field

The utility model relates to the dirty pipe connecting structure of a kind of city rain.

Background technology

In the design that the pipeline of existing city rain, sewage distributes, mostly will building sewage and the rainwater interflow after be discharged in the river course, the pollution that this design is serious the river course, can affect equally the environment of river course periphery.

Summary of the invention

The purpose of this utility model is to provide a kind of dirty mixed flow of rain that can reduce greatly to the dirty pipe connecting structure of the city rain of the pollution of river.

Of the present utility model being characterised in that: the dirty pipe connecting structure of a kind of city rain, the blow-off pipe and the inlet for stom water that comprise building, it is characterized in that: the blow-off pipe of described building is connected with blowdown main, described inlet for stom water is connected with blowdown main through pipeline, the collecting fitting of the sewage draining exit of described blowdown main and a catchpit links, the dirty pipe that cuts of described catchpit leads to Wastewater Treatment Plant, and the bleed off pipe of described catchpit leads to the river course.

Further, above-mentioned catchpit comprises the well body, the central region of described well body is provided with overflow weir, so that the well intracoelomic cavity is divided into intake antrum and spill cavity, be connected with on the described well body sidewall for collecting fitting from the dirty mixed flow of rain to intake antrum that introduce, be positioned to be connected with on the well body sidewall of intake antrum one side and cut dirty pipe and be used for the dirty mixed flow of rain is discharged to Wastewater Treatment Plant, be positioned at and be connected with the dirty mixed flow of rain that bleed off pipe is used for overflowing on the well body sidewall of spill cavity one side and be discharged to the river course.

Further, the invert elevation (IE) of above-mentioned collecting fitting is higher than the invert elevation (IE) that cuts dirty pipe.

Further, be provided with cover plate in the upper shed of above-mentioned well body.

Further, be provided with manhole on the blow-off pipe of above-mentioned pipeline and building.

Advantage of the present utility model: pipeline configuration is rationally distributed, transform in existing pipeline connection, and the workload of transforming is little, the funds that use are also little, but can when fine day, can avoid sewage to the pollution in river course, can reduce the live load of Wastewater Treatment Plant when the large rainy day, the use of this structure has reduced the pollution of the dirty mixed flow of rain to the river course greatly; The catchpit that uses simultaneously has the reverse-filling function, and the river that has solved catchpit pours in down a chimney problem, and because the limited space of river levee, the space that the well body is set is relatively more nervous, and well body volume of the present invention is little, is applicable to the place of river levee narrow space, has solved the construction space problem; Then, this catchpit simple structure, only at one overflow weir of inner chamber setting, easy construction, and be conducive to protect fragile river levee; At last, this catchpit overall structure is simple, cheap, is conducive to reduce the construction works cost.

Description of drawings

Fig. 1 is the organigram of the utility model embodiment.

Fig. 2 is the organigram of catchpit among the utility model embodiment.

Fig. 3 is the A-A sectional view of Fig. 2.

Among the figure: 1 is the blow-off pipe of building; 2 is inlet for stom water; 3 is blowdown main; 4 is pipeline; 5 is catchpit; 6 is Wastewater Treatment Plant; 7 is the river course; 8 is manhole; 51 is collecting fitting; 52 for cutting dirty pipe; 53 is bleed off pipe; 54 is the well body; 55 is overflow weir; 56 is intake antrum; 57 is spill cavity; 58 is cover plate.

The specific embodiment

For above-mentioned feature and advantage of the present utility model can be become apparent, embodiment cited below particularly, and cooperate appended graphic being described in detail below.

With reference to legend, plant the dirty pipe connecting structure of city rain, the blow-off pipe 1 and the inlet for stom water 2 that comprise building, it is characterized in that: the blow-off pipe 1 of described building is connected with blowdown main 3, described inlet for stom water 2 is connected with blowdown main 3 through pipeline 4, the collecting fitting 51 of the sewage draining exit of described blowdown main 3 and a catchpit 5 links, and the dirty pipe 52 that cuts of described catchpit 5 leads to Wastewater Treatment Plant 6, and the bleed off pipe 53 of described catchpit 5 leads to the river course.

Above-mentioned catchpit 5 comprises well body 54, the central region of described well body 54 is provided with overflow weir 55, so that well body 54 inner chambers are divided into intake antrum 56 and spill cavity 57, be connected with on described well body 54 sidewalls for collecting fitting 51 from the dirty mixed flow of rain to intake antrum 56 that introduce, be positioned to be connected with on the well body sidewall of intake antrum 56 1 sides and cut dirty pipe 52 and be used for the dirty mixed flow of rain is discharged to Wastewater Treatment Plant 6, be positioned at and be connected with the dirty mixed flow of rain that bleed off pipe 53 is used for overflowing on well body 54 sidewalls of spill cavity 57 1 sides and be discharged to river course 7.

The invert elevation (IE) of above-mentioned collecting fitting 51 is higher than the invert elevation (IE) that cuts dirty pipe 52.

Be provided with cover plate 58 in the upper shed of above-mentioned well body 54.

Be provided with manhole 8 on the blow-off pipe 1 of above-mentioned pipeline 4 and building.

Operating principle of the present utility model is: in fine day, because discharge is little, the building sewage in the flow passage interception well all is discharged to Wastewater Treatment Plant by wastewater interception pipe and processes, and has so just avoided the sewage pollution river course; And when rainy day, because of the water yield large, perhaps the dirty mixed flow water level of the rain of flow passage interception well can be higher than the height of overflow weir, at this moment, the dirty mixed flow of excessive rain to spill cavity is discharged to the river course by bleed off pipe from the overflow weir top, although can cause some to pollute to the river course, can reduce greatly the live load of Wastewater Treatment Plant like this.Accomplish that fine sewage do not arrange the inland river, the rainy day river does not pour in down a chimney, rainwater advances Sewage Plant less.

In the utility model one preferred embodiment: described well body adopts steel concrete to build and forms or be built into by cement mortar and fly ash brick, described well body below also is equipped with one deck C15 element concrete bed course, described well body below also is equipped with the rubble of one deck and fills with sand cushion and one deck natural sand bed course, described height of weir plate satisfy the overflow weir top mark tall and big in fine inland river at the incoming tide overflow well go out pool level and add again 15 ~ 30cm.

The above only is preferred embodiment of the present utility model, and all equalizations of doing according to the utility model claim change and modify, and all should belong to covering scope of the present utility model.

Claims

1. dirty pipe connecting structure of city rain, the blow-off pipe and the inlet for stom water that comprise building, it is characterized in that: the blow-off pipe of described building is connected with blowdown main, described inlet for stom water is connected with blowdown main through pipeline, the collecting fitting of the sewage draining exit of described blowdown main and a catchpit links, the dirty pipe that cuts of described catchpit leads to Wastewater Treatment Plant, and the bleed off pipe of described catchpit leads to the river course.

2. the dirty pipe connecting structure of city according to claim 1 rain, it is characterized in that: described catchpit comprises the well body, the central region of described well body is provided with overflow weir, so that the well intracoelomic cavity is divided into intake antrum and spill cavity, be connected with on the described well body sidewall for collecting fitting from the dirty mixed flow of rain to intake antrum that introduce, be positioned to be connected with on the well body sidewall of intake antrum one side and cut dirty pipe and be used for the dirty mixed flow of rain is discharged to Wastewater Treatment Plant, be positioned at and be connected with the dirty mixed flow of rain that bleed off pipe is used for overflowing on the well body sidewall of spill cavity one side and be discharged to the river course.

3. the dirty pipe connecting structure of city according to claim 2 rain, it is characterized in that: the invert elevation (IE) of described collecting fitting is higher than the invert elevation (IE) that cuts dirty pipe.

4. the dirty pipe connecting structure of city rain according to claim 2 is characterized in that: be provided with cover plate in the upper shed of described well body.

5. the dirty pipe connecting structure of city rain according to claim 1 is characterized in that: be provided with manhole on the blow-off pipe of described pipeline and building.