A sponge city water collection and drainage structure

Abstract

The utility model relates to the technical field of municipal facilities, specifically a sponge city water collection and drainage structure, including a water reservoir body, a sewer pipe installed inside the water reservoir body, a water storage treatment mechanism installed inside the water reservoir body and used to fix the sewer pipe, and a mud-blocking adjustment mechanism installed inside the sewer pipe and used to reduce the entry of mud and sand, and the water storage treatment mechanism is fixedly connected to the municipal pipe inside the water reservoir body and connected to the sewer pipe. The sponge city water collection and drainage structure can realize the accumulation, infiltration and purification of rainwater in urban areas, and effectively reduce the content of mud and sand flowing with rainwater by adding structures such as cover plates, baffles and sand retaining pipes on the sewer pipe, and the sand filter plate arranged in the water guide pipe plays a role in filtering mud and sand, so as to filter and treat the water before entering the municipal pipe network, thereby reducing the possibility of a large amount of sludge entering the municipal pipe and effectively reducing the accumulation of sludge in the municipal pipe.

Description

Technical Field

[0001] The utility model relates to the field of municipal facilities, in particular to a sponge city water collection and drainage structure. Background Art

[0002] At present, "sponge city" is a new generation of urban stormwater management concept, which means that the city has good "elasticity" in adapting to environmental changes and responding to natural disasters caused by rainwater. It can also be called a "water-elastic city". It absorbs, stores, infiltrates and purifies water when it rains, and "releases" and utilizes the stored water when needed. The construction of sponge cities should follow the principle of ecological priority, combine natural methods with artificial measures, and maximize the accumulation, infiltration and purification of rainwater in urban areas on the premise of ensuring the safety of urban drainage and flood prevention, so as to promote the utilization of rainwater resources and the protection of the ecological environment.

[0003] In the patent with the announcement number CN213268261U, a sponge city rainwater collection system is proposed, which includes a water reservoir arranged below the ground surface, a soil layer filtering structure is arranged above the water reservoir, and also includes a sediment transport device installed below the ground surface, and a sediment discharge port is arranged at the bottom of the water reservoir...; This patent can remove the sediment accumulated at the bottom of the water reservoir by arranging the sediment transport device to maintain the normal water storage capacity of the entire water reservoir, and treat the collected rainwater, so as to achieve the purpose of reusing rainwater.

[0004] Although the above patent can use the sediment transport device to remove the sediment at the bottom of the reservoir, it is large in size, difficult to use, and has a high production cost. It cannot prevent the mud from entering the municipal pipeline. As time goes by, more mud will accumulate on the inner wall of the municipal pipeline. In view of this, the present application proposes a sponge city water collection and drainage structure. Utility Model Content

[0005] In view of the shortcomings of the prior art, the utility model provides a sponge city water collection and drainage structure, which has the advantages of being able to filter the water before entering the municipal pipe network through layers of filtration, thereby reducing the possibility of a large amount of sludge entering the municipal pipe and effectively reducing the accumulation of sludge in the municipal pipe. It solves the problem of soil entering the municipal pipe and more soil accumulating on the inner wall of the municipal pipe over time.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sponge city water collection and drainage structure, comprising a water reservoir body, a sewer pipe installed inside the water reservoir body, a water storage treatment mechanism installed inside the water reservoir body and used to fix the sewer pipe, and a mud blocking adjustment mechanism installed inside the sewer pipe and used to reduce the entry of mud and sand;

[0007] The water storage treatment mechanism is fixedly connected to the municipal pipeline inside the water storage tank body and connected to the sewer pipe, the thick gravel cushion layer is fixedly connected to the inside of the water storage tank body, the permeable geotextile is fixedly connected to the top of the thick gravel cushion layer, the planting layer is fixedly connected to the top of the permeable geotextile, and the perforated pipe is fixedly connected to the inside of the thick gravel cushion layer and connected to the sewer pipe;

[0008] The mud blocking adjustment mechanism comprises a sand retaining assembly fixedly connected to the top of the sewer pipe, a sand screening assembly fixedly connected to the inside of the sewer pipe, and a collecting assembly fixedly connected to the inside of the sewer pipe.

[0009] Optionally, the sand retaining assembly includes a cover plate detachably connected to the top of the sewer pipe, a sand retaining pipe fixedly connected to the inside of the cover plate, and a baffle fixedly connected to the top of the cover plate and fixedly connected to the sand retaining pipe.

[0010] By adopting the above technical solution, the arrangement of the sand retaining pipe and the baffle plate can be conveniently utilized to play the role of blocking mud and sand, thereby preventing mud and sand from directly entering the sand retaining pipe.

[0011] Optionally, a plurality of filter residue holes are provided on the outer side of the baffle, and a filter membrane geotextile is provided on the outer side of the perforated pipe.

[0012] By adopting the above technical solution, the baffle and the filter residue holes on the baffle can be conveniently utilized to prevent impurities such as solid garbage outside the baffle from flowing through the baffle, and the filter membrane geotextile can prevent sand and gravel from entering the perforated pipe.

[0013] Optionally, the sand retaining pipe is composed of a tapered pipe and a branch pipe, and a plurality of water inlet microholes are provided on the side wall of the tapered pipe portion of the sand retaining pipe.

[0014] By adopting the above technical solution, it is convenient for rainwater to enter the sand retaining pipe through the water inlet micropores, and due to the special structure of the water inlet micropores, the entry rate of sediment can be effectively reduced.

[0015] Optionally, the sand screening assembly includes a water pipe fixedly connected to the bottom of the cover plate, a mounting block installed inside the water pipe, and a sand filter plate fixedly connected to the outside of the mounting block and fixedly connected to the inner wall of the water pipe.

[0016] By adopting the above technical solution, the setting of the sand filter plate can be conveniently utilized to filter the sediment, so as to further reduce the sediment entering the municipal pipeline.

[0017] Optionally, the mounting block is a hemispherical structure, and the sand filter plate is a conical structure.

[0018] By adopting the above technical solution, the structural characteristics of the mounting block can be conveniently utilized to prevent silt from accumulating on the top of the mounting block, and the structural characteristics of the sand filter plate can be utilized to increase the sand filtering area and prevent silt from accumulating on the sand filter plate.

[0019] Optionally, the collection assembly includes a storage box fixedly connected to the inner wall of the sewer pipe, a sand discharge pipe fixedly connected to the bottom of the cover plate and extending to the interior of the storage box, an electric-controlled gate valve fixedly connected to the interior of the sand discharge pipe, a sand guide pipe fixedly connected to the interior of the water pipe and extending to the interior of the storage box, and an electromagnetic valve fixedly connected to the interior of the sand guide pipe.

[0020] By adopting the above technical solution, it is convenient to open the electric control gate valve and the electromagnetic valve after the accumulated water stops flowing, so that the mud and sand can enter the storage box through the sand discharge pipe and the sand guide pipe.

[0021] Optionally, the storage box is annular, and the sand discharge pipe is slidably fitted to the inner side of the storage box, and a sand collecting port corresponding to the positions of the sand discharge pipe and the water guide pipe is opened on the top of the storage box.

[0022] By adopting the technical solution, it is convenient to allow the silt to enter the storage box through the sand collecting port when the sand discharge pipe and the sand guide pipe are opened.

[0023] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0024] The sponge city water collection and drainage structure can realize the accumulation, infiltration and purification of rainwater in urban areas. At the same time, by adding structures such as covers, baffles and sand retaining pipes on the sewer pipes, the sediment content flowing with the rainwater can be effectively reduced. The sand filter plate arranged in the water pipe plays a role in filtering sediment, so as to filter the water before entering the municipal pipeline network, thereby reducing the possibility of a large amount of sludge entering the municipal pipeline and effectively reducing the accumulation of sludge in the municipal pipeline. In addition, the storage box can store sediment, and after a period of use, the cover can be removed to clean the sediment from the sand collecting port of the storage box, so as to maintain a good cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the structure of the sewer pipe of the utility model;

[0026] Figure 2 This is a schematic diagram of the installation of the sewer pipe of the utility model;

[0027] Figure 3 It is a structural schematic diagram of the installation block of the utility model.

[0028] In the figure: 1. sewer pipe; 2. cover plate; 3. baffle; 301. filter residue hole; 4. sand retaining pipe; 401. water inlet micropore; 5. water guide pipe; 6. storage box; 7. sand discharge pipe; 8. electric control gate valve; 10. sand guide pipe; 11. electromagnetic valve; 12. mounting block; 15. sand filter plate; 18. municipal pipeline; 19. thick gravel cushion layer; 20. reservoir body; 21. permeable geotextile; 22. planting layer; 23. perforated pipe; 2301. filter membrane geotextile. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] See also Figure 1-3 A sponge city water collection and drainage structure in this embodiment includes a water reservoir body 20, a sewer pipe 1 installed inside the water reservoir body 20, a water storage treatment mechanism installed in the water reservoir body 20 and used to fix the sewer pipe 1, and a mud-blocking adjustment mechanism installed inside the sewer pipe 1 and used to reduce the entry of mud and sand.

[0031] In this embodiment, the water storage and treatment mechanism is fixedly connected to the municipal pipeline 18 inside the water storage tank body 20 and connected to the sewer pipe 1, the thick gravel cushion layer 19 is fixedly connected to the inside of the water storage tank body 20, the permeable geotextile 21 is fixedly connected to the top of the thick gravel cushion layer 19, the planting layer 22 is fixedly connected to the top of the permeable geotextile 21, and the perforated pipe 23 is fixedly connected to the inside of the thick gravel cushion layer 19 and connected to the sewer pipe 1. Through the arrangement of the thick gravel cushion layer 19, the permeable geotextile 21, the planting layer 22, the thick gravel cushion layer 19 and the perforated pipe 23, the accumulation, infiltration and purification of rainwater in urban areas are achieved, thereby achieving the purpose of promoting the utilization of rainwater resources and protecting the ecological environment.

[0032] Among them, a filter membrane geotextile 2301 is set on the outer side of the perforated pipe 23, so as to conveniently use the set filter membrane geotextile 2301 to prevent the mud and sand in the thick gravel cushion layer 19 from entering the perforated pipe 23.

[0033] In this embodiment, the mud blocking adjustment mechanism includes a sand retaining assembly fixedly connected to the top of the sewer pipe 1 , a sand screening assembly fixedly connected to the inside of the sewer pipe 1 , and a collecting assembly fixedly connected to the inside of the sewer pipe 1 .

[0034] The sand retaining assembly includes a cover plate 2 detachably connected to the top of the sewer pipe 1, a sand retaining pipe 4 fixedly connected to the inside of the cover plate 2, and a baffle 3 fixedly connected to the top of the cover plate 2 and fixedly connected to the sand retaining pipe 4. The arrangement of the sand retaining pipe 4 and the baffle 3 is convenient for preventing mud and sand.

[0035] Among them, a plurality of filter holes 301 are provided on the outside of the baffle 3, and the filter holes 301 are conveniently used to block the solid garbage and impurities flowing with the rainwater from the outside. The sand retaining pipe 4 is composed of a tapered pipe and a branch pipe, and a plurality of water inlet micropores 401 are provided on the side wall of the tapered pipe part of the sand retaining pipe 4, so that the rainwater can flow to the sand retaining pipe 4 by using the water inlet micropores 401, and in this process, the amount of sediment flowing with the rainwater is reduced.

[0036] In this embodiment, the sand screening assembly includes a water pipe 5 fixedly connected to the bottom of the cover plate 2, a mounting block 12 installed inside the water pipe 5, and a sand filter plate 15 fixedly connected to the outside of the mounting block 12 and fixedly connected to the inner wall of the water pipe 5. The sand filter plate 15 can be used to further remove the amount of sediment in the rainwater, effectively reducing the risk of sediment entering the municipal pipeline 18.

[0037] Among them, the mounting block 12 is a hemispherical structure, and the sand filter plate 15 is a conical structure, which facilitates the use of the structural characteristics of the mounting block 12 to prevent the accumulation of mud and sand on the top of the mounting block 12, and utilizes the structural characteristics of the sand filter plate 15 to increase the area of ​​the sand filtering function and prevent the accumulation of filtered mud and sand.

[0038] In this embodiment, the collection assembly includes a storage box 6 fixedly connected to the inner wall of the sewer pipe 1, a sand discharge pipe 7 fixedly connected to the bottom of the cover plate 2 and extending to the inside of the storage box 6, an electric control gate valve 8 fixedly connected to the inside of the sand discharge pipe 7, a sand guide pipe 10 fixedly connected to the inside of the water guide pipe 5 and extending to the inside of the storage box 6, and an electromagnetic valve 11 fixedly connected to the inside of the sand guide pipe 10. The storage box 6 is convenient for collecting the sediment removed from the rainwater.

[0039] Among them, the storage box 6 is annular, and the sand discharge pipe 7 is slidably adapted to the inner side of the storage box 6. A sand collecting port corresponding to the position of the sand discharge pipe 7 and the water guide pipe 5 is opened on the top of the storage box 6, so that the sand discharge pipe 7 and the sand guide pipe 10 can use the sand collecting port to guide the collected mud and sand into the storage box 6.

[0040] The working principle of the above embodiment is:

[0041] When the sponge city water collection and drainage structure is used, the thick gravel cushion layer 19, the permeable geotextile 21, the planting layer 22, the thick gravel cushion layer 19 and the perforated pipe 23 are arranged to achieve the accumulation, infiltration and purification of rainwater in the urban area, so as to promote the utilization of rainwater resources and protect the ecological environment. In this process, the rainwater accumulated on the ground and the liquid entering the perforated pipe 23 can enter the municipal pipe 18 through the sewer pipe 1;

[0042] The cover plate 2 and the baffle plate 3 arranged on the top of the sewer pipe 1 can use the filter residue holes 301 to block the solid garbage and impurities flowing with the rainwater from the outside, and the sand entering the inner side of the baffle plate 3 with the rainwater is blocked by the sand retaining pipe 4 and accumulated on the top of the cover plate 2, while the rainwater can flow into the sand retaining pipe 4 through the water inlet micropores 401 after exceeding a certain limit, and enter the municipal pipeline 18 along the water guide pipe 5;

[0043] In this process, the silt flowing into the sand retaining pipe 4 with the rainwater needs to be filtered by the filter sand plate 15, so as to effectively reduce the possibility of sludge entering the municipal pipeline 18; after the rain stops, the electric control gate valve 8 and the electromagnetic valve 11 can be opened to allow the accumulated silt to enter the storage box 6 through the sand discharge pipe 7 and the sand guide pipe 10, so as to facilitate subsequent centralized treatment, and at the same time prevent excessive accumulation of silt from affecting the discharge of the next rainwater;

[0044] After a period of use, the cover plate 2 can be removed to clean the sand from the sand collecting opening of the storage box 6 so as to maintain a good cleaning effect.

Claims

1. A sponge city water collection and drainage structure, characterized by: It comprises a water storage tank body (20), a sewer pipe (1) installed inside the water storage tank body (20), a water storage treatment mechanism installed inside the water storage tank body (20) and used to fix the sewer pipe (1), and a mud blocking adjustment mechanism installed inside the sewer pipe (1) and used to reduce the entry of mud and sand; The water storage treatment mechanism comprises a municipal pipeline (18) fixedly connected to the interior of the water storage tank body (20) and connected to the sewer pipe (1), a thick gravel cushion layer (19) fixedly connected to the interior of the water storage tank body (20), a permeable geotextile (21) fixedly connected to the top of the thick gravel cushion layer (19), a planting layer (22) fixedly connected to the top of the permeable geotextile (21), and a perforated pipe (23) fixedly connected to the interior of the thick gravel cushion layer (19) and connected to the sewer pipe (1); The mud blocking adjustment mechanism comprises a sand blocking component fixedly connected to the top of the sewer pipe (1), a sand screening component fixedly connected to the inside of the sewer pipe (1), and a collecting component fixedly connected to the inside of the sewer pipe (1).

2. A sponge city water collection and drainage structure according to claim 1, characterized in that: The sand retaining assembly comprises a cover plate (2) detachably connected to the top of the sewer pipe (1), a sand retaining pipe (4) fixedly connected to the inside of the cover plate (2), and a retaining plate (3) fixedly connected to the top of the cover plate (2) and fixedly connected to the sand retaining pipe (4).

3. A sponge city water collection and drainage structure according to claim 2, characterized in that: A plurality of filter residue holes (301) are provided on the outer side of the baffle (3), and a filter membrane geotextile (2301) is sleeved on the outer side of the perforated pipe (23).

4. A sponge city water collection and drainage structure according to claim 2, characterized in that: The sand retaining pipe (4) is composed of a tapered pipe and a branch pipe, and a plurality of water inlet microholes (401) are provided on the side wall of the tapered pipe portion of the sand retaining pipe (4).

5. A sponge city water collection and drainage structure according to claim 2, characterized in that: The sand screening assembly comprises a water pipe (5) fixedly connected to the bottom of the cover plate (2), a mounting block (12) mounted inside the water pipe (5), and a sand filter plate (15) fixedly connected to the outside of the mounting block (12) and fixedly connected to the inner wall of the water pipe (5).

6. A sponge city water collection and drainage structure according to claim 5, characterized in that: The mounting block (12) is a hemispherical structure, and the sand filter plate (15) is a conical structure.

7. A sponge city water collection and drainage structure according to claim 5, characterized in that: The collecting assembly comprises a storage box (6) fixedly connected to the inner wall of the sewer pipe (1), a sand discharge pipe (7) fixedly connected to the bottom of the cover plate (2) and extending to the interior of the storage box (6), an electric control gate valve (8) fixedly connected to the interior of the sand discharge pipe (7), a sand guide pipe (10) fixedly connected to the interior of the water guide pipe (5) and extending to the interior of the storage box (6), and an electromagnetic valve (11) fixedly connected to the interior of the sand guide pipe (10).

8. A sponge city water collection and drainage structure according to claim 7, characterized in that: The storage box (6) is annular, and the sand discharge pipe (7) is slidably fitted inside the storage box (6). The top of the storage box (6) is provided with a sand collection opening corresponding to the positions of the sand discharge pipe (7) and the water guide pipe (5).

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