Multifunctional sponge facility for rainwater energy dissipation, purification and overflow

Abstract

The utility model relates to the technical field of sponge city facilities, and discloses a multifunctional sponge facility for rainwater energy dissipation, purification and overflow, which comprises a concave greenbelt, a rainwater overflow water inlet well and a rainwater overflow water outlet well are arranged in the concave greenbelt, the top of the rainwater overflow water inlet well is fixedly connected with high-strength plastic grates I which are uniformly distributed, and the top of the rainwater overflow water outlet well is fixedly connected with high-strength plastic grates II. Uniformly-distributed overflow water inlet gutter inlets are formed among the multiple high-strength plastic grates I, a rainwater inlet pipe is fixedly connected to the right side of the rainwater overflow water inlet well, and uniformly-distributed energy dissipation anti-scour pebbles are arranged in the rainwater overflow water inlet well; outer permeation branch pipes which are uniformly distributed are fixedly connected to the front and rear ends of the rainwater overflow water inlet well. According to the utility model, the rainwater purification and greenbelt irrigation effects of the sponge facility are realized, the rainwater collection, water permeation, storage, purification and utilization effects are realized, and the dependence on the traditional water supply system is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sponge city facilities, in particular to a multifunctional sponge facility for rainwater energy dissipation and purification overflow. Background Art

[0002] "Sponge City" is a concept of urban rainwater management. It means that the city has the same characteristics as a sponge in adapting to environmental changes and responding to natural disasters caused by rainwater. It can absorb and purify rainwater when it rains, and release the water stored in the underground sponge body for use when it is not raining. Through sponge transformation, urban waterlogging can be eliminated, water sources can be protected, the ecological environment can be improved, and the city can return to nature. If the city can breathe in and out rainwater like a sponge, the internationally accepted term is "low-impact development rainwater system construction". When it rains, it absorbs water, stores water, infiltrates water, and purifies water. When needed, the stored water will be released and used.

[0003] The existing sponge facilities usually store rainwater in the sunken green space through water outlets, while the plants in the sunken green space completely rely on the water stored in the land during droughts, without other forms of irrigation. This makes the survival and growth of plants highly dependent on precipitation and soil moisture accumulation. The leaves of plants cannot absorb water and nutrients, resulting in insufficient nutrition on the leaves. At the same time, dust, dirt and other pollutants accumulated on the leaf surface cannot be removed, which ultimately reduces the ornamental value. This helps to rationally utilize rainwater resources and reduce urban water pressure. Summary of the invention

[0004] The present invention discloses a rainwater energy dissipation and purification overflow multifunctional sponge facility, which is installed in a sunken green space or rain garden to collect roof rainwater, reduce rainwater scouring, reduce rainwater runoff, reduce rainwater pollution, etc. At the same time, it can irrigate plants in the sunken green space or rain garden.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multifunctional sponge facility for rainwater energy dissipation and purification overflow, comprising a sunken green space, wherein a rainwater overflow inlet well and a rainwater overflow outlet well are arranged inside the sunken green space, a uniformly distributed high-strength plastic grate is fixedly connected to the top of the rainwater overflow inlet well, a uniformly distributed overflow rainwater inlet is arranged between a plurality of the high-strength plastic grates, a rainwater inlet pipe is fixedly connected to the right side of the rainwater overflow inlet well, uniformly distributed energy dissipation and anti-scour pebbles are arranged inside the rainwater overflow inlet well, and uniformly distributed external infiltration branches are fixedly connected to the front and rear ends of the rainwater overflow inlet well.

[0006] As a further description of the above technical solution:

[0007] The top of the rainwater overflow outlet well is fixedly connected with two evenly distributed high-strength plastic grates, and a plurality of the high-strength plastic grates are provided with evenly distributed overflow outlets. The right side of the rainwater overflow outlet well is fixedly connected with a purified outlet pipe, and the front and rear ends of the rainwater overflow outlet well are fixedly connected with evenly distributed internal infiltration branches after the rainwater is purified.

[0008] As a further description of the above technical solution:

[0009] A permeable purification sand layer is arranged at the bottom of the sunken green space, and the outer permeable branch pipe and the inner permeable branch pipe after rainwater purification are both arranged inside the permeable purification sand layer.

[0010] As a further description of the above technical solution:

[0011] The rainwater inlet pipe and the purified water outlet pipe are both fixedly connected with filter screens.

[0012] As a further description of the above technical solution:

[0013] The standard of the rainwater inlet pipe is DN100-DN200, and the standard of the purified water outlet pipe is DN200.

[0014] As a further description of the above technical solution:

[0015] The total length of the rainwater overflow inlet well is 70 cm, the length of the rainwater overflow inlet well extending out of the sunken green space is 10 cm, the total length of the rainwater overflow outlet well 10 is 100 cm, the length of the rainwater overflow outlet well extending out of the sunken green space is 18 cm, and the distance between the sunken green space and the ground is 38 cm.

[0016] As a further description of the above technical solution:

[0017] The slope of the rainwater inlet pipe and the purified outlet pipe is i=001.

[0018] The utility model has the following beneficial effects:

[0019] In the utility model, through the mutual cooperation of mechanisms such as the rainwater inlet pipe, the rainwater overflow inlet well, the energy dissipation and anti-scour pebbles, the external infiltration branch pipe, the internal infiltration branch pipe after the rainwater purification and the overflow inlet rainwater outlet, the sponge facility is realized to transform the rainwater and irrigate the green space, and the effects of rainwater collection, permeability, storage, purification and utilization are achieved, reducing the dependence on the traditional water supply system. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A top view of a multifunctional sponge facility for rainwater energy dissipation and purification overflow proposed by the utility model;

[0021] Figure 2 A cross-sectional view of a multifunctional sponge facility for rainwater energy dissipation and purification overflow proposed by the utility model;

[0022] Figure 3 It is a structural cross-sectional view of a rainwater overflow inlet well of a rainwater energy dissipation and purification overflow multifunctional sponge facility proposed by the utility model;

[0023] Figure 4 It is a structural cross-sectional view of a rainwater overflow outlet well of a rainwater energy dissipation and purification overflow multifunctional sponge facility proposed by the utility model;

[0024] Legend:

[0025] 1. Rainwater inlet pipe; 2. Rainwater overflow inlet well; 3. High-strength plastic grate 1; 4. Sunken green space; 5. External infiltration branch pipe; 6. Energy dissipation and anti-scour pebbles; 7. Infiltration purification sand layer; 8. Purified outlet pipe; 9. Internal infiltration branch pipe after rainwater purification; 10. Rainwater overflow outlet well; 11. High-strength plastic grate 2; 12. Overflow inlet rainwater outlet; 13. Overflow outlet rainwater outlet. Implementation

[0026] 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.

[0027] Reference Figure 1-3The utility model provides an embodiment: a rainwater energy dissipation and purification overflow multifunctional sponge facility, comprising a sunken green space 4, a rainwater overflow inlet well 2 and a rainwater overflow outlet well 10 are arranged inside the sunken green space 4, a uniformly distributed high-strength plastic grate 3 is fixedly connected to the top of the rainwater overflow inlet well 2, a uniformly distributed overflow rainwater inlet 12 is arranged between the multiple high-strength plastic grates 3, a rainwater inlet pipe 1 is fixedly connected to the right side of the rainwater overflow inlet well 2, uniformly distributed energy dissipation and anti-scouring pebbles 6 are arranged inside the rainwater overflow inlet well 2, and uniformly distributed high-strength plastic grates 3 are fixedly connected to the top of the rainwater overflow inlet well 2. An external infiltration branch pipe 5 is distributed, and an infiltration purification sand layer 7 is arranged at the bottom of the sunken green space 4. The external infiltration branch pipe 5 and the internal infiltration branch pipe 9 after rainwater purification are both arranged inside the infiltration purification sand layer 7. The building rainwater is transmitted to the rainwater overflow inlet well 2 through the rainwater inlet pipe 1. The rainwater is dissipated by the evenly distributed energy dissipation and anti-scouring pebbles 6. A part of the rainwater after energy dissipation enters the external infiltration branch pipe 5 and is discharged into the infiltration purification sand layer 7. The infiltration purification sand layer 7 also has a purifying effect on rainwater. The other part flows out to the sunken green space 4 through the overflow rainwater inlet 12 between multiple high-strength plastic grates 3.

[0028] Reference Figure 1 , Figure 2 and Figure 4 The top of the rainwater overflow outlet well 10 is fixedly connected with uniformly distributed high-strength plastic grates 11, and uniformly distributed overflow outlets 13 are arranged between the multiple high-strength plastic grates 11. The right side of the rainwater overflow outlet well 10 is fixedly connected with a purified outlet pipe 8, and the front and rear ends of the rainwater overflow outlet well 10 are fixedly connected with uniformly distributed internal infiltration branch pipes 9 after rainwater purification. The excess rainwater remaining in the sunken green space 4 enters the rainwater overflow outlet well 10 through the overflow outlets 13 between several high-strength plastic grates 11, and the other part is discharged into the rainwater in the infiltration purification sand layer 7 through the external infiltration branch pipe 5. After the rainwater in the soil is stored and purified, the excess is absorbed into the rainwater overflow outlet well 10 through the internal infiltration branch pipe 9 after rainwater purification. The excess rainwater after infiltration is uniformly discharged into the municipal rainwater pipe network through the purified outlet pipe 8 to meet the functional requirements of the sponge facility.

[0029] Reference Figure 1-2 The rainwater inlet pipe 1 and the purified outlet pipe 8 are both fixedly connected with a filter screen. The filter screen can prevent the rainwater inlet pipe 1 and the purified outlet pipe 8 from transmitting rainwater that has not been completely treated. The standard of the rainwater inlet pipe 1 is DN100-DN200, and the standard of the purified outlet pipe 8 is DN200. If the diameters of the rainwater inlet pipe 1 and the purified outlet pipe 8 can be gradually expanded, it will help slow down the water flow speed, thereby reducing the probability of hydraulic shock.

[0030] Reference Figure 2The total length of the rainwater overflow inlet well 2 is 70 cm, the length of the rainwater overflow inlet well 2 extending out of the sunken green space 4 is 10 cm, the total length of the rainwater overflow outlet well 10 is 100 cm, the length of the rainwater overflow outlet well 10 extending out of the sunken green space 4 is 18 cm, and the distance between the sunken green space 4 and the ground is 38 cm. Since the rainwater overflow inlet well 2 is always flowing into the sunken green space 4, there will be no backflow into the rainwater overflow inlet well 2, and the rainwater remaining in the sunken green space 4 will not flow back into the rainwater overflow inlet well 2. When the water reaches a certain height, it will enter the rainwater overflow outlet well 10 through the overflow rainwater outlet 13. The rainwater overflow outlet well 10 is higher than the rainwater overflow inlet well 2, so as to prevent impurities at the bottom of the soil in the sunken green space 4 from entering the rainwater overflow outlet well 10 along with the rainwater when the rainwater overflow inlet well 2 is discharged. The sunken green space 4 is higher than the rainwater overflow inlet well 2 and the rainwater overflow outlet well 10 at the same time, so that the rainwater is absorbed by the rainwater overflow outlet well 10 to avoid overflowing the sunken green space 4.

[0031] Reference Figure 2 The slope of the rainwater inlet pipe 1 and the purified outlet pipe 8 is i=0.01. The appropriate slope can increase the speed of water flow, increase drainage efficiency, and reduce the risk of water accumulation and blockage.

[0032] Working principle: When the rainwater energy dissipation and purification overflow multifunctional sponge facility is in use, the building rainwater is discharged into the rainwater overflow inlet well 2 with anti-scour effect through the rainwater inlet pipe 1. After the rainwater passes through the energy dissipation and anti-scour effect pebbles 6, part of the rainwater enters the sunken green space 4 through the overflow rainwater inlet port 12, and the other part enters the infiltration purification sand layer 7 through the external infiltration branch pipe 5. The rainwater in the infiltration purification sand layer 7 is easy to store and infiltrate. The rainwater on the sunken green space 4 enters the rainwater overflow outlet well 10 through the high-strength plastic grate 11. The purified rainwater in the infiltration purification sand layer 7 reaches the rainwater overflow outlet well 10 through the internal infiltration branch pipe 9 after rainwater purification. The excess rainwater after infiltration is discharged into the municipal rainwater pipe network through the purified outlet pipe 8 to meet the functional requirements of the sponge facility.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multifunctional sponge facility for rainwater energy dissipation and purification overflow, comprising a sunken green space (4), Features: A rainwater overflow inlet well (2) and a rainwater overflow outlet well (10) are arranged inside the sunken green space (4); a uniformly distributed high-strength plastic grate one (3) is fixedly connected to the top of the rainwater overflow inlet well (2); uniformly distributed overflow inlet rainwater outlets (12) are arranged between a plurality of the high-strength plastic grate ones (3); a rainwater inlet pipe (1) is fixedly connected to the right side of the rainwater overflow inlet well (2); uniformly distributed energy dissipation and anti-scouring pebbles (6) are arranged inside the rainwater overflow inlet well (2); and uniformly distributed external infiltration branch pipes (5) are fixedly connected to the front and rear ends of the rainwater overflow inlet well (2).

2. A multifunctional sponge facility for rainwater energy dissipation and purification overflow according to claim 1, Features: The top of the rainwater overflow outlet well (10) is fixedly connected to two uniformly distributed high-strength plastic grates (11), and between the plurality of the two high-strength plastic grates (11) are arranged uniformly distributed overflow outlet rainwater ports (13). The right side of the rainwater overflow outlet well (10) is fixedly connected to a purified outlet pipe (8), and the front and rear ends of the rainwater overflow outlet well (10) are fixedly connected to uniformly distributed internal infiltration branch pipes (9) after the rainwater is purified.

3. A multifunctional sponge facility for rainwater energy dissipation and purification overflow according to claim 1, Features: A permeable and purified sand layer (7) is provided at the bottom of the sunken green space (4), and the outer permeable branch pipe (5) and the inner permeable branch pipe (9) after rainwater purification are both provided inside the permeable and purified sand layer (7).

4. A multifunctional sponge facility for rainwater energy dissipation and purification overflow according to claim 1, Features: The rainwater inlet pipe (1) and the purified water outlet pipe (8) are both fixedly connected with filter screens.

5. A multifunctional sponge facility for rainwater energy dissipation and purification overflow according to claim 1, Features: The standard of the rainwater inlet pipe (1) is DN100-DN200, and the standard of the purified water outlet pipe (8) is DN200.

6. A multifunctional sponge facility for rainwater energy dissipation and purification overflow according to claim 1, Features: The total length of the rainwater overflow inlet well (2) is 70 centimeters, and the length of the rainwater overflow inlet well (2) extending out of the sunken green space (4) is 10 centimeters. The total length of the rainwater overflow outlet well (10) is 100 centimeters, and the length of the rainwater overflow outlet well (10) extending out of the sunken green space (4) is 18 centimeters. The distance between the sunken green space (4) and the ground is 38 centimeters.

7. A multifunctional sponge facility for rainwater energy dissipation and purification overflow according to claim 1, Features: The rainwater inlet pipe (1) and the purified water outlet pipe (8) have a slope i=0.01.

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