CN215712114U - Initial rainwater purification pond integrating storage, purification and regulation functions - Google Patents
Initial rainwater purification pond integrating storage, purification and regulation functions Download PDFInfo
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- CN215712114U CN215712114U CN202023270223.XU CN202023270223U CN215712114U CN 215712114 U CN215712114 U CN 215712114U CN 202023270223 U CN202023270223 U CN 202023270223U CN 215712114 U CN215712114 U CN 215712114U
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Abstract
The utility model relates to an initial rainwater purification pond integrating storage, purification and regulation functions, and belongs to the field of environmental protection. The purification pond consists of an initial rainwater sedimentation region with a multilayer sedimentation structure, a rainwater storage region and a multistage surrounding type initial rainwater purification region, wherein the rainwater storage region is defined by a slope bottom line. The initial rainwater sedimentation zone of the multilayer sedimentation structure is located at the most upstream of the purification pond, the rainwater regulation zone of the pond body defined by a slope bottom line is located at the downstream of the initial rainwater sedimentation zone, and the multistage surrounding type initial rainwater purification zone is located at the periphery of the rainwater regulation zone and annularly arranged. The initial rainwater is intercepted to the initial rainwater settling zone through the initial rainwater intercepting pipeline, and the stored initial rainwater is extracted to the initial rainwater purification zone for purification treatment and recycling through the pump station in the later stage. The utility model is applied to the earth surface and constructed by excavation, thus solving the problems of construction cost and operation and maintenance; simultaneously, a purification system for primary rain is added, primary rain purification can be carried out in situ, and the problem of primary rain treatment is solved.
Description
Technical Field
The utility model relates to an initial rainwater purification pond integrating storage, purification and regulation functions, and belongs to the field of environmental protection.
Background
The initial rainwater refers to rainwater at the early stage of rainfall, and generally refers to rainfall with surface runoff formed on the ground surface with the thickness of 10-15 mm. In the early stage of rainfall, a large amount of acid gases, automobile exhaust, factory waste gas and other pollutant gases in the air are dissolved in the rainwater, and after the rainwater falls to the ground, the rainwater in the early stage contains a large amount of pollutants due to scouring of roofs, asphalt concrete roads and the like, so that the pollution degree of the rainwater in the early stage is higher and even exceeds that of common urban sewage. The sewage is directly discharged into a river channel through a rainwater pipe, and the water supply environment causes certain serious pollution.
In order to solve the problem of initial rainwater pollution, the conventional method is to construct an initial rainwater intercepting pipeline, intercept initial rainwater by arranging an intercepting well in front of a river rainwater pipe discharge port, construct an underground regulation and storage tank for storing the initial rainwater, and take measures to process in the later stage. Traditional underground regulation pond is the steel-concrete structure cell body that the underground was built, is located the underground, and the investment is high, and the operation maintenance such as desilting is complicated, and later stage initial stage rainwater is handled the difficulty, and the treatment cost is higher, and the degree of difficulty is great at present promoted on a large scale.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects, the utility model provides the initial rainwater purification pond integrating the functions of storage, purification and regulation.
The utility model adopts the following technical scheme:
the initial rainwater purification pond integrating the storage, purification and regulation functions comprises an initial rainwater sedimentation region with a multilayer sedimentation structure, a rainwater regulation region defining a pond body by a slope bottom line and a multistage surrounding type initial rainwater purification region, wherein the initial rainwater sedimentation region with the multilayer sedimentation structure is positioned at the most upstream of the purification pond, the initial rainwater sedimentation region is connected with a municipal initial rainwater interception pipeline, and the rainwater regulation region defining the pond body by the slope bottom line is positioned at the downstream of the initial rainwater sedimentation region and is used for temporarily storing initial rainwater; the multistage initial stage rainwater that encircles the type purifies the district and arranges in rainwater regulation district annular all around for the initial stage rainwater is purified to the degree of depth.
The initial stage rainwater dams through initial stage rainwater pipeline and dams to initial stage rainwater settling zone, simply subsides the back and arranges into rainwater regulation district and store, and the later stage is retrieved after pump station extraction stored initial stage rainwater to initial stage rainwater purification area purification treatment.
The initial rainwater purification pond integrating the functions of storage, purification and regulation is characterized in that an initial rainwater sedimentation region of the multilayer sedimentation structure comprises a primary sedimentation region and a secondary sedimentation region; the height of the primary settling area and the height of the secondary settling area are sequentially decreased towards the height of the inner horizontal plane;
the preliminary sedimentation area is formed by enclosing a No. 1 percolation weir, and the No. 1 percolation weir extends inwards towards the rainwater inlet to form an arch;
the secondary settlement area is enclosed by 2# infiltration weir and forms, and 2# infiltration weir extends into the rainwater import and becomes the arch and arranges, and 2# infiltration weir's enclosed area is greater than 1# infiltration weir's enclosed area.
The initial rainwater purification pond integrates the functions of storage, purification and regulation, and the hydraulic retention time of the primary settling area is 0.5-1 min; the No. 1 percolation weir in the preliminary sedimentation zone consists of gravel gabions with the grain diameter of 40-60 mm;
the hydraulic retention time of the secondary settling zone is 0.5h, and the No. 2 percolation weir in the secondary settling zone consists of gravel gabions with the grain diameter of 10-20 mm.
The initial rainwater purification pond integrating the functions of storage, purification and regulation is characterized in that a multistage surrounding type initial rainwater purification area consists of a water outlet pipeline, a pump station, a backflow pipeline, a water distribution channel and a reinforced purification area; the water outlet pipeline, the pump station and the return pipeline are connected in sequence in the water flow direction, namely the water outlet pipeline, the pump station and the return pipeline, the upstream of the water outlet pipeline is connected with a water collecting area of the rainwater storage area, and the downstream of the return pipeline is connected with a water distribution channel; the water distribution channel is a steel-concrete water channel and is positioned at the periphery of the reinforced purification area; the reinforced purification area is arranged at the inner side of the water distribution channel in an annular shape and is composed of a steel-concrete tank body filled with 1-2m thick multi-stage grain size zeolite. The water distribution channel and the water quality purification area are arranged in a step shape, and the elevation of the horizontal plane is sequentially reduced in the water distribution channel, the water quality purification area and the rainwater storage area.
The initial rainwater purification pond integrates the functions of storage, purification and regulation, the rainwater regulation and storage area is positioned at the inner side of the initial rainwater purification area, and the downstream of the initial rainwater sedimentation area is mainly used for temporarily storing initial rainwater. The rainwater storage area and the water quality purification area are arranged in a ladder shape, and the horizontal plane of the rainwater storage area is lower than that of the water quality purification area. The bottom end of the rainwater regulation and storage area is provided with a water collection area lower than the bottom surface and used for draining rainwater in the area.
The initial rainwater purification pond integrates the functions of storage, purification and regulation, and a pedestrian path is arranged between the bank slope line and the edge of the water distribution channel.
Advantageous effects
The initial rainwater purification pond integrating the storage, purification and regulation functions is applied to earth surface construction through excavation, and the problems of construction cost and operation and maintenance are solved; simultaneously, a purification system for primary rain is added, primary rain purification can be carried out in situ, and the problem of primary rain treatment is solved.
The initial rainwater purification pond integrating the storage, purification and regulation functions provided by the utility model can play a role in regulating and storing flood by intercepting rainwater in the same initial rainwater purification pond, and is the initial rainwater purification pond integrating the storage, purification and regulation functions.
Drawings
FIG. 1 is a schematic top view of the rainwater purification pond of the present invention;
FIG. 2 is a schematic view of a cross-sectional view taken along line 1-1 in FIG. 1;
fig. 3 is a schematic view of a cross-section 2-2 of fig. 1.
In the figure, 1, a primary settling area 2, a secondary settling area 3, a rainwater storage area 4, a water collecting area 5, a pump station 6, an enhanced purification area 7, a water distribution channel 8, a pedestrian footpath 9.1# percolation weir 10.2# percolation weir 11, a primary rainwater interception pipeline 12, a water outlet pipeline 13 and a return pipeline 14 are arranged on a slope line.
Detailed Description
In order to make the purpose and technical solution of the embodiments of the present invention clearer, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the drawings of the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the utility model without any inventive step, are within the scope of protection of the utility model.
As shown in fig. 1: the initial rainwater purification pond integrating the storage, purification and regulation functions comprises an initial rainwater sedimentation region with a multilayer sedimentation structure, a rainwater regulation region defining a pond body by a slope bottom line and a multistage surrounding type initial rainwater purification region, wherein the initial rainwater sedimentation region with the multilayer sedimentation structure is positioned at the most upstream of the purification pond and is used for bearing a municipal initial rainwater interception pipeline, and the rainwater regulation region defining the pond body by the slope bottom line is positioned at the downstream of the initial rainwater sedimentation region and is used for temporarily storing initial rainwater; the multistage initial stage rainwater that encircles the type purifies the district and arranges in rainwater regulation district annular all around for the initial stage rainwater is purified to the degree of depth.
The initial stage rainwater dams through initial stage rainwater pipeline and dams to initial stage rainwater settling zone, simply subsides the back and arranges into rainwater regulation district and store, and the later stage is retrieved after pump station extraction stored initial stage rainwater to initial stage rainwater purification area purification treatment.
The initial rainwater sedimentation area of the multilayer sedimentation structure comprises a primary sedimentation area 1 and a secondary sedimentation area 2; the height of the primary sedimentation region 1 and the height of the secondary sedimentation region 2 are sequentially decreased towards the height of the horizontal plane of the rainwater storage region 3; the preliminary sedimentation region 1 is formed by enclosing a No. 1 percolation weir 9, and the No. 1 percolation weir extends into the rainwater collection region to form an arch; the secondary sedimentation area 2 is formed by enclosing a No. 2 percolation weir 10, the No. 2 percolation weir 10 extends into the rainwater collection area to form an arch, and the enclosing area of the No. 2 percolation weir 10 is larger than that of a No. 1 percolation weir 9. The hydraulic retention time of the primary settling zone 1 is 0.5-1min, and large particles and silt in the initial rainwater are mainly removed; the No. 1 percolation weir consists of gravel gabions with the grain diameter of 40-60mm and is used for intercepting large-particle suspended matters in initial rainwater; the hydraulic retention time of the secondary sedimentation area 2 is 0.5h, and smaller particles in initial rainwater are mainly removed; the No. 2 percolation weir consists of gravel gabions with the grain diameter of 10-20mm and is used for intercepting the suspension of smaller particles in initial rainwater.
The multistage surrounding type initial rainwater purification area comprises a water outlet pipeline 12, a pump station 5, a return pipeline 13, a water distribution channel 8 and an enhanced purification area 6. The connection sequence of the water outlet pipeline 12, the pump station 5 and the return pipeline 13 is water outlet pipeline 12-pump station 5-return pipeline 13 in sequence according to the water flow direction, the upstream of the water outlet pipeline 13 is connected with the water collecting zone 4 of the rainwater storage zone 3, and the downstream of the return pipeline 13 is connected with the water distribution channel 7; the water distribution channel 7 is a steel-concrete channel, is positioned at the periphery of the reinforced purification area 6, is used for receiving water from a return pipeline 13 and distributing water to the reinforced purification area 6, and the design parameters of the water distribution channel are set according to the water quantity; the strengthening and purifying area 6 is positioned at the inner side of the water distribution channel 7 and is annularly arranged for strengthening and purifying initial rainwater, the strengthening and purifying area 6 is composed of a steel-concrete tank body filled with 1-2m thick multi-stage grain size zeolite, and the initial rainwater can reach the purification purpose through permeation and adsorption among the zeolite. The water distribution channel 7, the reinforced purification area 6 and the rainwater storage area 3 are arranged in a ladder shape, and the height of the horizontal plane is gradually reduced. The water outlet pipeline 12 and the return pipeline 13 are made of stainless steel pipes, and the pipe diameters are determined according to the flow; the design flow and the lift of the pump station 5 are determined according to the specific initial rainwater flow and the terrain; the water distribution channel adopts a steel-concrete channel with the width of 1-2m and the depth of 1-2 m; the initial rain purification area is composed of a zeolite filler layer with the thickness of 1-2 m.
The rainwater regulation and storage area comprises a rainwater regulation and storage area 3 and a water collection area 4. The volume of the rainwater storage area 3 is determined according to the initial rainwater interception rainwater amount; the depth of the water collecting area is 1-2m, and the device is mainly used for emptying the purification pond. The rainwater regulation and storage area 3 is located inside the strengthening and purifying area 6 and at the downstream of the initial rainwater settling area, and is mainly used for temporarily storing initial rainwater. The rainwater storage area 3 and the strengthening purification area 6 are arranged in a ladder shape, and the horizontal plane of the rainwater storage area is lower than that of the water quality purification area. The bottom end of the rainwater regulation and storage area 3 is provided with a water collection area 4 lower than the bottom surface and used for draining rainwater in the area.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. The utility model provides a collect and store, purify, regulation function in initial stage rainwater purification pond of an organic whole which characterized in that: the purification pond consists of an initial rainwater sedimentation region with a multilayer sedimentation structure, a rainwater storage region defining a pond body by a bottom slope line and a multistage surrounding type initial rainwater purification region, wherein the initial rainwater sedimentation region with the multilayer sedimentation structure is positioned at the most upstream of the purification pond, the initial rainwater sedimentation region is used for bearing a municipal initial rainwater interception pipeline, and the rainwater storage region defining the pond body by the bottom slope line is positioned at the downstream of the initial rainwater sedimentation region; the multistage surrounding type initial rainwater purification area is annularly arranged around the rainwater regulation and storage area.
2. The initial rainwater purification pond integrating storage, purification and regulation functions as claimed in claim 1, wherein: the initial rainwater sedimentation area of the multilayer sedimentation structure comprises a primary sedimentation area and a secondary sedimentation area; the height of the primary settling area and the height of the secondary settling area are sequentially decreased towards the height of the inner horizontal plane;
the preliminary sedimentation area is formed by enclosing a No. 1 percolation weir, and the No. 1 percolation weir extends inwards to the rainwater inlet to form an arch;
the secondary sedimentation area is formed by enclosing a No. 2 percolation weir, the No. 2 percolation weir extends into the rainwater inlet to form an arch, and the enclosed area of the No. 2 percolation weir is larger than that of the No. 1 percolation weir.
3. The initial rainwater purification pond integrating storage, purification and regulation functions as claimed in claim 2, wherein: the hydraulic retention time of the primary settling area is 0.5-1 min; the No. 1 percolation weir in the preliminary sedimentation zone consists of gravel gabions with the grain diameter of 40-60 mm;
the hydraulic retention time of the secondary settling zone is 0.5h, and the No. 2 percolation weir in the secondary settling zone consists of gravel gabions with the grain diameter of 10-20 mm.
4. The initial rainwater purification pond integrating storage, purification and regulation functions as claimed in claim 1 or 2, wherein: the initial rainwater purification area consists of a water outlet pipeline, a pump station, a backflow pipeline, a water distribution channel and a reinforced purification area; the water outlet pipeline, the pump station and the return pipeline are connected in sequence in the water flow direction, namely the water outlet pipeline, the pump station and the return pipeline, the upstream of the water outlet pipeline is connected with a water collecting area of the rainwater storage area, and the downstream of the return pipeline is connected with a water distribution channel; the water distribution channel is a steel-concrete water channel and is positioned at the periphery of the reinforced purification area; the reinforced purification area is positioned at the inner side of the water distribution channel and is annularly arranged, and the reinforced purification area is formed by a steel-concrete pool body filled with 1-2m thick multi-stage grain size zeolite; the water distribution channel and the water quality purification area are arranged in a step shape, and the elevation of the horizontal plane is sequentially reduced in the water distribution channel, the water quality purification area and the rainwater storage area.
5. The initial rainwater purification pond integrating storage, purification and regulation functions as claimed in claim 1, wherein: the rainwater storage region is positioned at the inner side of the initial rainwater purification region, the rainwater storage region and the water quality purification region are arranged in a step shape at the downstream of the initial rainwater sedimentation region, and the horizontal plane of the rainwater storage region is lower than the water quality purification region; the bottom end of the rainwater regulation and storage area is provided with a water collection area lower than the bottom surface.
6. The initial rainwater purification pond integrating storage, purification and regulation functions as claimed in claim 4, wherein: a pedestrian path is arranged between the bank slope line and the edge of the water distribution channel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202023270223.XU CN215712114U (en) | 2020-12-30 | 2020-12-30 | Initial rainwater purification pond integrating storage, purification and regulation functions |
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| CN202023270223.XU CN215712114U (en) | 2020-12-30 | 2020-12-30 | Initial rainwater purification pond integrating storage, purification and regulation functions |
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| CN215712114U true CN215712114U (en) | 2022-02-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115581157A (en) * | 2022-10-28 | 2023-01-10 | 南京大学建筑规划设计研究院有限公司 | Sponge flower bed integrating rainwater purification, regulation and storage and recycling and use method |
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2020
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115581157A (en) * | 2022-10-28 | 2023-01-10 | 南京大学建筑规划设计研究院有限公司 | Sponge flower bed integrating rainwater purification, regulation and storage and recycling and use method |
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