Sponge city rainwater management system for suburban areas

Abstract

The utility model relates to the technical field of rainwater management in urban planning and construction, and discloses a sponge city rainwater management system for suburb areas, which comprises a rainwater collection module, a rainwater purification module and a rainwater storage module, the rainwater collecting module comprises a roof water collecting device, a shallow concave type water collecting groove and a linear water collecting ditch. According to the sponge city rainwater management system for the suburb area, through the arrangement of a rainwater collection module, a rainwater purification module, a rainwater storage module, a second water pump and a drainage pipeline, the whole-process closed-loop management of rainwater from collection, purification, storage to reuse can be realized, so that the utilization rate of the rainwater in the suburb area is increased; according to the invention, the water resource waste is reduced, the ecological system service function in the region can be enhanced, the operation and maintenance cost of municipal infrastructures is reduced, the service life of equipment is prolonged, and the public service quality and the resident life quality are improved.

Description

Technical Field

[0001] This application relates to the field of rainwater management technology in urban planning and construction, specifically a sponge city rainwater management system for suburban areas. Background Technology

[0002] With the acceleration of urbanization, more and more cities are facing flooding problems caused by torrential rains, especially in suburban areas where sparse vegetation cover and hardened surfaces allow rainwater to quickly flow into rivers, causing flooding. Traditional drainage systems often focus only on the rapid discharge of rainwater, neglecting the effective utilization of rainwater resources. This not only wastes precious water resources but also exacerbates the problem of declining groundwater levels. In recent years, the concept of sponge cities has gradually emerged. By simulating the natural hydrological cycle, it absorbs, stores, infiltrates, and purifies rainwater on-site during rainfall, releasing it for use when necessary, effectively alleviating these problems. Existing rainwater management measures in suburban areas mainly include establishing artificial wetlands, installing permeable paving, and constructing underground reservoirs. These traditional solutions each have their advantages, but they also have obvious limitations and shortcomings.

[0003] Current stormwater management solutions in suburban areas generally suffer from a lack of comprehensiveness and are characterized by strong single-function approaches, failing to achieve efficient management and sustainable utilization of stormwater. For example, while permeable paving helps increase groundwater recharge, its ability to purify stormwater is limited; constructed wetlands, although capable of purifying water, cannot quickly respond to sudden heavy rainfall events. Furthermore, while underground reservoirs can store large amounts of rainwater, the lack of effective stormwater reuse mechanisms leads to significant resource waste. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application provides a sponge city rainwater management system for suburban areas, which has the advantages of effective management and utilization of rainwater, adaptability to different weather conditions, and reduced impact on the natural environment, thus solving the problems in the background technology.

[0005] To achieve the above objectives, this application provides the following technical solution: a sponge city rainwater management system for suburban areas, comprising a rainwater collection module, a rainwater purification module, and a rainwater storage module. The rainwater collection module is located above ground and includes a rooftop water collection device, a shallow concave water collection trough, and a linear water collection ditch. Pipes are fixedly installed on the inner walls of the rooftop water collection device, the shallow concave water collection trough, and the linear water collection ditch. The rainwater purification module is located below ground and includes a collection pool. A gravel layer and a coarse sand layer are fixedly installed on the inner wall of the collection pool. The rainwater collection module includes a fine sand layer, an activated carbon layer fixedly installed on the inner wall of the collection pool, a first water pump fixedly installed on the outer surface of the collection pool, a water storage tank located to the right of the rainwater purification module, a waterproof layer fixedly connected to the inner wall of the water storage tank, a connecting pipe fixedly connected to the output end of the first water pump, the outer surface of the connecting pipe extending through the outer surface of the water storage tank and the outer surface of the waterproof layer to the interior of the waterproof layer, a second water pump fixedly installed on the outer surface of the water storage tank, a drainage pipe fixedly connected to the output end of the second water pump, and the end of the drainage pipe away from the second water pump connected to an external irrigation system, a landscape water replenishment system, and an industrial water system.

[0006] The above-mentioned solution, through the installation of rainwater harvesting, purification, and storage modules, a second water pump, and drainage pipes, achieves closed-loop management of the entire process of rainwater collection, purification, storage, and reuse. This improves the utilization rate of rainwater in suburban areas, reduces water waste, and is of great significance for promoting green and sustainable development. It also enhances the ecosystem service functions of the region, such as flood control and drainage, water purification, and landscape creation, contributing to the construction of a beautiful home where humans and nature coexist harmoniously. At the same time, it reduces the operation and maintenance costs of municipal infrastructure, extends the service life of equipment, and improves the quality of public services and residents' quality of life.

[0007] Furthermore, the rooftop water collection device is made of stainless steel.

[0008] The above solution, by setting up a roof water collection device, can collect rainwater falling on the surface of the house. Furthermore, the stainless steel material has excellent corrosion resistance, high strength, and durability, which significantly extends the service life of the pipes.

[0009] Furthermore, both the shallow concave water collection trough and the linear water collection ditch are made of precast concrete.

[0010] The above scheme, by setting up shallow concave water collection troughs and linear water collection ditches, can collect rainwater from both sides of the road and green spaces, thereby increasing the rainwater collection area. In addition, the concrete has excellent durability and corrosion resistance, ensuring that it will not fail due to wear or corrosion during long-term use.

[0011] Furthermore, the diameter of the gravel layer ranges from 10 to 40 mm.

[0012] The above scheme, by setting up a gravel layer, can perform preliminary filtration of the collected rainwater, filtering out larger materials in the rainwater, and the gravel layer can also effectively prevent water flow from eroding and damaging the filter layer.

[0013] Furthermore, the coarse sand layer has a particle size between 2 and 5 mm, and the fine sand layer has a particle size of less than 2 mm.

[0014] The above scheme provides good skeletal support and permeability by setting a coarse sand layer, forming a stable filter layer while ensuring smooth water flow. The fine sand layer tightly fits the gaps between the gravel layers, further improving filtration performance. The coarse sand layer can capture smaller suspended solids and impurities, improving filtration accuracy.

[0015] Furthermore, the water storage tank is made of reinforced concrete.

[0016] The above solution, by setting up a water storage tank, can collect filtered rainwater, and the reinforced concrete material has excellent structural strength and durability, thereby improving its service life.

[0017] Furthermore, the drainage pipe is made of PVC-U pipe.

[0018] Through the above solution, the drainage pipe material has excellent weather resistance and chemical stability, and can withstand the pressure and water flow erosion under various environmental conditions for a long time, ensuring the safe transportation of water resources.

[0019] Furthermore, the rooftop water collection device, the shallow concave water collection trough, and the linear water collection ditch are connected to the inner wall of the collection pool via pipes.

[0020] Through the above scheme, the collected rainwater can be stably transported to the interior of the rainwater purification module by means of the roof water collection device, shallow concave water collection trough and linear water collection ditch. The pipe is made of corrosion-resistant and high-strength material to ensure that it will not be damaged by rainwater corrosion or pressure during the transportation process.

[0021] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0022] This sponge city rainwater management system for suburban areas, through the installation of rainwater collection modules, rainwater purification modules, rainwater storage modules, a second water pump, and drainage pipes, achieves closed-loop management of the entire process of rainwater collection, purification, storage, and reuse. This improves the utilization rate of rainwater in suburban areas, reduces water waste, and is of great significance for promoting green and sustainable development. Furthermore, it enhances the ecosystem services of the region, such as flood control and drainage, water purification, and landscape creation, contributing to the construction of a beautiful home where humans and nature coexist harmoniously. Simultaneously, it reduces the operation and maintenance costs of municipal infrastructure, extends equipment lifespan, and improves the quality of public services and residents' quality of life. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural diagram of the entire application;

[0024] Figure 2 This is a schematic diagram of the internal structure of the rainwater harvesting module and rainwater purification module of this application;

[0025] Figure 3 This is a three-dimensional structural diagram of the rainwater purification module and rainwater storage module of this application;

[0026] Figure 4 This is a schematic diagram of the internal structure of the rainwater storage module in this application.

[0027] In the picture:

[0028] 1. Rainwater harvesting module; 101. Rooftop water collection device; 102. Shallow concave water collection trough; 103. Linear water collection ditch; 2. Rainwater purification module; 201. Collection tank; 202. Gravel layer; 203. Coarse sand layer; 204. Fine sand layer; 205. Activated carbon layer; 3. Rainwater storage module; 301. Water storage tank; 302. Waterproof layer; 4. First water pump; 5. Connecting pipe; 6. Second water pump; 7. Drainage pipe. Detailed Implementation

[0029] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0030] Please see Figure 1 , Figure 2 and Figure 3This embodiment describes a sponge city rainwater management system for suburban areas, including a rainwater harvesting module 1, a rainwater purification module 2, and a rainwater storage module 3. The rainwater harvesting module 1 is located above the ground and includes a rooftop water collection device 101, a shallow concave water collection trough 102, and a linear water collection ditch 103. Pipes are fixedly installed on the inner walls of the rooftop water collection device 101, the shallow concave water collection trough 102, and the linear water collection ditch 103. 101. The shallow concave water collection trough 102 and the linear water collection ditch 103 function to collect rainwater from various types of areas such as houses, roads, and green spaces, thereby increasing the rainwater collection area and improving the performance of rainwater harvesting. The rainwater purification module 2 is located below the ground and includes a collection pool 201. A gravel layer 202, a coarse sand layer 203, and a fine sand layer 204 are fixedly installed on the inner wall of the collection pool 201. 4. An activated carbon layer 205 is fixedly installed on the inner wall of the collection tank 201. Through the action of the gravel layer 202, coarse sand layer 203, fine sand layer 204, and activated carbon layer 205, it can efficiently remove suspended solids, organic matter, heavy metal ions, and other harmful substances from rainwater, improve the water quality and safety of rainwater, and improve the utilization efficiency of water resources. A first water pump 4 is fixedly installed on the outer surface of the collection tank 201. The rainwater storage module 3 includes a water storage tank 301, which is located to the right of the rainwater purification module 2. On the side, a waterproof layer 302 is fixedly connected to the inner wall of the water storage tank 301. A connecting pipe 5 is fixedly connected to the output end of the first water pump 4. The outer surface of the connecting pipe 5 extends through the outer surface of the water storage tank 301 and the outer surface of the waterproof layer 302 to the interior of the waterproof layer 302. A second water pump 6 is fixedly installed on the outer surface of the water storage tank 301. A drainage pipe 7 is fixedly connected to the output end of the second water pump 6. The end of the drainage pipe 7 away from the second water pump 6 is connected to an external irrigation system, a landscape water replenishment system, and an industrial water system.

[0031] Please see Figure 1 and Figure 2 The rooftop water collection device 101 is made of stainless steel. By setting up the rooftop water collection device 101, rainwater falling on the surface of the house can be collected. Stainless steel has excellent corrosion resistance, high strength and durability, which significantly extends the service life of the pipes. The shallow concave water collection trough 102 and the linear water collection ditch 103 are both made of precast concrete. By setting up the shallow concave water collection trough 102 and the linear water collection ditch 103, rainwater can be collected from both sides of the road and green space, thereby increasing the rainwater collection area. Concrete has excellent durability and corrosion resistance, ensuring that it will not fail due to wear or corrosion during long-term use.

[0032] Please see Figure 1 and Figure 2The gravel layer 202 has a diameter ranging from 10 to 40 mm. By setting the gravel layer 202, the collected rainwater can be initially filtered to remove larger particles from the rainwater. The gravel layer 202 can also effectively prevent water flow from eroding and damaging the filter layer. The coarse sand layer 203 has a particle size between 2 and 5 mm, and the fine sand layer 204 has a particle size of less than 2 mm. By setting the coarse sand layer 203, it can provide good skeletal support and permeability, forming a stable filter layer while ensuring the smooth flow of water. By setting the fine sand layer 204, it can tightly fit the gaps between the gravel layers 202, thereby further improving the filtration performance. The coarse sand layer 203 can capture smaller suspended solids and impurities, improving the filtration accuracy.

[0033] Please see Figure 2 , Figure 3 and Figure 4 The water storage tank 301 is made of reinforced concrete. By setting up the water storage tank 301, filtered rainwater can be collected. The reinforced concrete material has excellent structural strength and durability, thereby improving service life. The drainage pipe 7 is made of PVC-U pipe. The drainage pipe 7 material has excellent weather resistance and chemical stability, and can withstand the pressure and water flow scouring under various environmental conditions for a long time, ensuring the safe transportation of water resources. The roof water collection device 101, the shallow concave water collection trough 102, and the linear water collection ditch 103 are connected to the inner wall of the collection tank 201 through pipes. Through the function of the roof water collection device 101, the shallow concave water collection trough 102, and the linear water collection ditch 103, the collected rainwater can be stably transported to the interior of the rainwater purification module 2. The pipes are made of corrosion-resistant and high-strength materials to ensure that they will not be damaged by rainwater corrosion or pressure during transportation.

[0034] This embodiment of a sponge city rainwater management system for suburban areas, through the configuration of a rainwater collection module 1, a rainwater purification module 2, a rainwater storage module 3, a second water pump 6, and drainage pipes 7, enables closed-loop management of the entire process of rainwater collection, purification, storage, and reuse. This improves the utilization rate of rainwater in suburban areas, reduces water waste, and is of great significance for promoting green and sustainable development. Furthermore, it enhances the ecosystem service functions of the region, such as flood control and drainage, water purification, and landscape creation, contributing to the construction of a beautiful home where humans and nature coexist harmoniously. At the same time, it reduces the operation and maintenance costs of municipal infrastructure, extends the service life of equipment, and improves the quality of public services and residents' quality of life.

[0035] It should be noted that the roof water collection device 101 can be selected in different colors and shapes according to the architectural style. Secondly, the type of filter material inside the rainwater purification module 2 can be appropriately changed according to the actual water quality to ensure efficient filtration. Finally, the capacity of the water storage tank 301 can also be flexibly changed according to the size of the project.

[0036] The working principle of the above embodiment is as follows: This solution, through scientific and reasonable design, realizes closed-loop management of the entire process of rainwater collection, purification, storage and reuse. First, a rainwater collection module 1 is set on the ground, and the interior of the rainwater collection module 1 includes various types of water collection facilities such as roof water collection device 101, shallow concave water collection trough 102 and linear water collection ditch 103, thereby increasing the rainwater collection area. Then, the rainwater purification module 2 can comprehensively purify the collected rainwater to ensure that the water quality meets the reuse standards. Next, the purified rainwater is continuously transported to the interior of the storage tank 301 through the first water pump 4 and connecting pipe 5, and safely stored in the underground storage tank 1 for later use. Finally, according to the needs of different application scenarios, a reasonable rainwater distribution strategy is formulated so that rainwater can be fully used in agricultural irrigation, landscaping and other fields, thereby achieving the purpose of saving resources and improving the ecological environment.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0038] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sponge city rainwater management system for suburban areas, comprising a rainwater harvesting module (1), a rainwater purification module (2), and a rainwater storage module (3), characterized in that: The rainwater collection module (1) is located above the ground. The rainwater collection module (1) includes a roof water collection device (101), a shallow concave water collection trough (102), and a linear water collection ditch (103). Pipes are fixedly installed on the inner walls of the roof water collection device (101), the shallow concave water collection trough (102), and the linear water collection ditch (103). The rainwater purification module (2) is located below the ground. The rainwater purification module (2) includes a collection pool (201). A gravel layer (202) is fixedly installed on the inner wall of the collection pool (201). A coarse sand layer (203) is fixedly installed on the inner wall of the collection pool (201). A fine sand layer (204) is fixedly installed on the inner wall of the collection pool (201). An activated carbon layer (205) is fixedly installed on the inner wall of the collection pool (201). A first water pump (4) is fixedly installed on the outer surface of the pool (201). The rainwater storage module (3) includes a water storage pool (301). The water storage pool (301) is located on the right side of the rainwater purification module (2). A waterproof layer (302) is fixedly connected to the inner wall of the water storage pool (301). A connecting pipe (5) is fixedly connected to the output end of the first water pump (4). The outer surface of the connecting pipe (5) extends through the outer surface of the water storage pool (301) and the outer surface of the waterproof layer (302) to the interior of the waterproof layer (302). A second water pump (6) is fixedly installed on the outer surface of the water storage pool (301). A drainage pipe (7) is fixedly connected to the output end of the second water pump (6). The end of the drainage pipe (7) away from the second water pump (6) is connected to an external irrigation system, a landscape water replenishment system, and an industrial water system.

2. A sponge city rainwater management system for suburban areas according to claim 1, characterized in that: The roof water collection device (101) is made of stainless steel.

3. A sponge city rainwater management system for suburban areas according to claim 1, characterized in that: The shallow concave water collection trough (102) and the linear water collection ditch (103) are both made of precast concrete.

4. A sponge city rainwater management system for suburban areas according to claim 1, characterized in that: The diameter of the gravel layer (202) ranges from 10 to 40 mm.

5. A sponge city rainwater management system for suburban areas according to claim 1, characterized in that: The coarse sand layer (203) has a particle size between 2 and 5 mm, and the fine sand layer (204) has a particle size less than 2 mm.

6. A sponge city rainwater management system for suburban areas according to claim 1, characterized in that: The water storage tank (301) is made of reinforced concrete.

7. A sponge city rainwater management system for suburban areas according to claim 1, characterized in that: The drainage pipe (7) is made of PVC-U pipe.

8. A sponge city rainwater management system for suburban areas according to claim 1, characterized in that: The roof water collection device (101), the shallow concave water collection trough (102), and the shallow concave water collection trough (102) are connected to the inner wall of the collection pool (201) through pipes.

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