Rainwater collection and utilization system

Abstract

The utility model relates to the technical field of rainwater collection and utilization, and provides a rainwater collection and utilization system which is characterized in that one end of a perforated water collecting pipe is arranged in a permeable pavement, and the perforated water collecting pipe is used for collecting and conveying rainwater passing through the permeable pavement; the water storage module is located on one side of the permeable pavement, located below the perforated water collecting pipe and communicated with the perforated water collecting pipe. By means of the technical scheme, the problem that in the prior art, the rainwater absorption amount of a water storage module is not uniform is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of rainwater collection and utilization, and specifically to a rainwater collection and utilization system. Background Art

[0002] At present, there are many ways to collect rainwater in China, such as roof water collection, surface runoff water collection, slope water collection, etc. The collection efficiency varies depending on factors such as the material of the collection surface, meteorological conditions (sunshine, temperature and humidity, etc.), and the length of rainfall. There are three ways to collect rainwater in construction projects: for hardened roofs of buildings, rainwater should be concentrated into green spaces, permeable pavements, or stored in water storage facilities; for hardened ground courtyards, squares, sidewalks, etc., permeable materials should be used for paving or confluence facilities should be built to direct rainwater into permeable areas or water storage facilities; for infrastructure such as urban trunk roads, rainwater utilization facilities should be built in combination with greening facilities along the roads.

[0003] The rainwater storage module is an underground rainwater storage facility that has been widely used in recent years. It has a certain pressure bearing capacity, and more than 95% of the gaps can achieve effective water storage. Waterproof cloth or geotextile is laid around the water storage module to prevent the collected rainwater from leaking. At the same time, the water inlet pipe, water outlet pipe, water pump position and inspection well need to be set up in the structure. The water storage modules currently used are generally high-quality recycled PP polypropylene. However, in the prior art, the water storage capacity of the rainwater storage module is limited, and when encountering a ground with a large horizontal inclination angle, the absorption amount of the water storage module is uneven. Utility Model Content

[0004] The utility model provides a rainwater collection and utilization system, which solves the problem of uneven rainwater absorption by a water storage module in the related art.

[0005] The technical solution of the utility model is as follows:

[0006] A rainwater collection and utilization system, comprising:

[0007] Permeable paving;

[0008] A perforated water collecting pipe, one end of which is arranged in the permeable pavement, and the perforated water collecting pipe is used to collect and transport rainwater passing through the permeable pavement;

[0009] A water storage module, wherein the water storage module is located on one side of the permeable pavement and below the perforated water collecting pipe, and the water storage module is communicated with the perforated water collecting pipe.

[0010] Optionally, it also includes:

[0011] There are a plurality of water distribution pipes, which are spaced apart along the conveying direction of the perforated water collecting pipe, one end of each of the water distribution pipes is connected to the perforated water collecting pipe, and the other end of each of the water distribution pipes extends into the water storage module;

[0012] A water distribution pipe is arranged in the water storage module, and the other ends of the plurality of water distribution pipes are connected to the water distribution pipe, and the water distribution pipe is used to distribute rainwater.

[0013] Optionally, one end of the water distribution pipe is a closed port, and further comprises:

[0014] A recycling well is arranged on one side of the water storage module, and the other end of the water distribution pipe is connected to the recycling well.

[0015] Optionally, the water distribution pipe is located below the perforated water collecting pipe.

[0016] Optionally, it also includes:

[0017] A bioretention facility is arranged on one side of the permeable pavement, the bioretention facility is located on the ground, and the water storage module is located below the bioretention facility;

[0018] An overflow well, the bottom of which is connected to the perforated water collecting pipe, the top of which is higher than the surface of the biological retention facility, the overflow well is located at the lowest point of the protected biological retention facility, the top of which is provided with an overflow port, and the overflow port is higher than the ground.

[0019] Optionally, it also includes:

[0020] A filter element is arranged at the bottom of the overflow well, and is used for filtering rainwater passing through the overflow well.

[0021] Optionally, it also includes:

[0022] An inspection well is arranged on one side of the overflow well, and the inspection well is connected to the municipal rainwater pipe network;

[0023] An overflow drain pipe, wherein both ends of the overflow drain pipe are respectively connected to the overflow well and the inspection well.

[0024] Optionally, the permeable pavement includes:

[0025] A permeable surface layer is arranged below the ground, and the top of the permeable surface layer is flush with the ground height;

[0026] A water-permeable base layer is arranged below the water-permeable base layer, and one end of the perforated water collecting pipe is arranged in the water-permeable base layer.

[0027] Optionally, it also includes:

[0028] The waterproof geotextile is arranged between the water storage module and the soil layer.

[0029] Optionally, it also includes:

[0030] A lifting pump is arranged at the bottom of the reuse well, and the lifting pump is used to pump and utilize rainwater.

[0031] The working principle and beneficial effects of the utility model are:

[0032] In the utility model, the permeable pavement serves as the uppermost layer of the system. The permeable pavement layer is made of materials with good water permeability and covers the ground, so that rainwater can quickly penetrate through the surface, reduce surface runoff, and preliminarily filter impurities in the rainwater.

[0033] The perforated water collection pipe is located below the permeable pavement. The porous structure of the perforated water collection pipe allows rainwater to fall directly into the permeable pavement after passing through the permeable pavement, and then be collected and directed to the designated collection point through the pipe network. The perforated design ensures efficient collection of rainwater and avoids energy loss during the infiltration process.

[0034] The water storage module is arranged next to the perforated water collecting pipe, located below or on the side of the permeable pavement structure, and is connected to the perforated water collecting pipe to collect and store rainwater collected through the pipe. The water storage module can be an underground water storage tank, a modular plastic water tank or other form of storage structure, which is waterproof, anti-seepage and has a certain pressure bearing capacity.

[0035] The perforated water collecting pipe is connected with the water storage module, and the arrangement of the water storage module below the perforated water collecting pipe not only makes it easier to collect and store rainwater, but also the rainwater in the perforated water collecting pipe enters the water storage module after porous diversion, which can make the water storage module absorb rainwater more evenly and prevent the problem of oversaturation on one side of the water storage module and less absorption on the other side due to the arrangement. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present utility model.

[0037] Figure 1 It is a schematic diagram of the structure of the utility model.

[0038] In the figure: 1. Permeable pavement, 2. Perforated water collection pipe, 3. Water storage module, 4. Water distribution pipe, 5. Water distribution pipe, 6. Reuse well, 7. Bioretention facility, 8. Overflow well, 9. Overflow port, 10. Filter element, 11. Inspection well, 12. Municipal rainwater pipe network, 13. Overflow drain pipe, 14. Permeable surface layer, 15. Permeable base layer, 16. Waterproof geotextile, 17. Lifting pump. DETAILED DESCRIPTION

[0039] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0040] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0041] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0042] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0043] Reference Figure 1 The utility model proposes a rainwater collection and utilization system, including a perforated water collecting pipe 2, one end of which is arranged in a permeable pavement 1, and the perforated water collecting pipe 2 is used to collect and transport rainwater passing through the permeable pavement 1; a water storage module 3 is located on one side of the permeable pavement 1, and the water storage module 3 is located below the perforated water collecting pipe 2, and the water storage module 3 is connected to the perforated water collecting pipe 2.

[0044] In this embodiment, the permeable pavement 1 serves as the top layer of the system. The permeable pavement 1 layer is made of materials with good permeability and covers the ground, so that rainwater can quickly penetrate through the surface, reduce surface runoff, and preliminarily filter impurities in the rainwater.

[0045] The perforated water collection pipe 2 is located below the permeable pavement layer 1. The porous structure of the perforated water collection pipe 2 facilitates rainwater to fall directly into the permeable pavement layer 1, and then be collected and directed to the designated collection point through the pipe network. The perforated design ensures efficient collection of rainwater and avoids energy loss during the infiltration process.

[0046] The water storage module 3 is arranged adjacent to the perforated water collecting pipe 2, located below or on the side of the permeable pavement 1 structure, and is connected to the perforated water collecting pipe 2 to collect and store rainwater collected through the pipe. The water storage module 3 can be an underground water storage tank, a modular plastic water tank or other forms of storage structure, which is waterproof, anti-seepage and has a certain pressure bearing capacity.

[0047] The perforated water collecting pipe 2 is connected to the water storage module 3, and the arrangement of the water storage module 3 below the perforated water collecting pipe 2 not only makes it easier to collect and store rainwater, but also the rainwater in the perforated water collecting pipe 2 enters the water storage module 3 after porous diversion, which can make the water storage module 3 absorb rainwater more evenly and prevent the problem of oversaturation on one side of the water storage module 3 and less absorption on the other side due to the arrangement.

[0048] Furthermore, it also includes water distribution pipes 4, which are distributed at intervals along the conveying direction of the perforated water collecting pipe 2. One ends of the water distribution pipes 4 are connected to the perforated water collecting pipe 2, and the other ends extend into the water storage module 3; the water distribution pipe 5 is arranged in the water storage module 3, and the other ends of the water distribution pipes 4 are connected to the water distribution pipe 5, and the water distribution pipe 5 is used to distribute rainwater.

[0049] In this embodiment, the water distribution pipes 4 are spaced apart along the direction of the perforated water collection pipe 2, and each water distribution pipe 4 is connected to the perforated water collection pipe 2, so that the rainwater collected by the perforated water collection pipe 2 can be evenly distributed to multiple points. This can not only make more effective use of the space of the water storage module 3 and avoid overload in a certain area, but also improve the efficiency of rainwater infiltration and storage. Through the dispersed collection of multiple water distribution pipes 4, rainwater can be transferred from the surface to the water storage module 3 more quickly, especially when the rainfall intensity is high or the duration is long. Such a design can effectively avoid congestion in the perforated water collection pipe 2 and ensure the efficient operation of the rainwater collection system.

[0050] The water distribution pipe 5 is arranged inside the water storage module 3 and is connected to each water distribution pipe 4. Its function is to further distribute and adjust the flow direction and flow rate of rainwater entering the water storage module 3. The distribution and utilization of rainwater through the water distribution pipe 5 become more flexible and controllable. When necessary, the opening degree of the water distribution pipe 5 can be adjusted by a valve or other control device to selectively guide rainwater to other places, such as adjusting the storage or discharge strategy according to the amount of rainwater.

[0051] Furthermore, one end of the water distribution pipe 5 is a closed end, and further includes a recycling well 6 , which is arranged on one side of the water storage module 3 , and the other end of the water distribution pipe 5 is connected to the recycling well 6 .

[0052] In this embodiment, the recycling well 6 is arranged on one side of the water storage module 3 and is connected to the other end of the water distribution pipe 5, which plays the role of final collection and temporary storage of rainwater. This not only provides a clear outlet for rainwater, facilitates centralized management and monitoring of collected rainwater, but also facilitates subsequent further processing or distribution of rainwater.

[0053] Furthermore, the water distribution pipe 5 is located below the perforated water collecting pipe 2 .

[0054] In this embodiment, the water distribution pipe 5 is arranged below the perforated water collecting pipe 2, so that the gravitational potential energy of rainwater can be fully utilized. After the rainwater is collected by the perforated water collecting pipe 2, it can naturally flow into the water distribution pipe 5 below, without the need for additional power devices such as pumps to drive the water flow, which greatly reduces the operating cost and maintenance complexity of the system.

[0055] Furthermore, it also includes a biological retention facility 7, which is arranged on one side of the permeable pavement 1. The biological retention facility 7 is located on the ground, and the water storage module 3 is located below the biological retention facility 7; the overflow well 8, the bottom of the overflow well 8 is connected to the perforated water collecting pipe 2, the top of the overflow well 8 is higher than the surface of the biological retention facility 7, the overflow well 8 is located at the lowest point of the protected biological retention facility 7, and the top of the overflow well 8 has an overflow port 9, and the overflow port 9 is higher than the ground.

[0056] In this embodiment, the bioretention facility 7 is a rainwater treatment method that simulates a natural wetland. It is arranged on one side of the permeable pavement 1 and can capture and temporarily store part of the rainwater. Through the action of soil, plant roots and microorganisms, the rainwater is naturally filtered and purified, and suspended matter, nutrients and other pollutants are removed, thereby improving the water quality of the rainwater and making it more suitable for reuse or groundwater recharge.

[0057] The overflow well 8 is located at the lowest point of the biological retention facility 7 and has a certain height from the bottom surface. Its bottom is connected to the perforated water collecting pipe 2. When the amount of rainwater exceeds the treatment capacity of the biological retention facility 7, the rainwater will accumulate on the biological retention layer. When the height of the rainwater exceeds the overflow well 8, the rainwater can flow into the perforated water collecting pipe 2 through the overflow well 8, and finally reach the water storage module 3 or the reuse well 6 from the perforated water collecting pipe 2.

[0058] Furthermore, a filter element 10 is arranged at the bottom of the overflow well 8, and the filter element 10 is used to filter rainwater passing through the overflow well 8.

[0059] In this embodiment, when the amount of rainwater exceeds the processing capacity of the biological retention and needs to be discharged through the overflow well 8, the filter element 10 can further intercept and remove large particle impurities such as suspended matter, silt, leaf fragments, etc. in the water to prevent clogging of the perforated water collection pipe 2.

[0060] Furthermore, it also includes an inspection well 11 arranged on one side of the overflow well 8, and the inspection well 11 is connected to the municipal rainwater pipe network 12; the two ends of the overflow drainage pipe 13 are respectively connected to the overflow well 8 and the inspection well 11.

[0061] In this embodiment, the inspection well 11 is arranged on one side of the overflow well 8 and is connected to the municipal rainwater pipe network 12. It serves as an important inspection point in the system, which facilitates the staff to regularly check whether the pipes in the system are unobstructed and whether there is sediment accumulation, as well as to perform necessary cleaning and maintenance work to ensure the long-term and effective operation of the rainwater drainage system.

[0062] The inspection well 11 serves as a connection point, allowing the overflow well 8 and the municipal rainwater pipe network 12 to be smoothly connected. When the amount of rainwater in the system is too large and exceeds its own processing capacity, the excess rainwater passing through the overflow well 8 can enter the inspection well 11 through the overflow drain pipe 13, and finally be discharged into the municipal rainwater pipe network 12, effectively preventing rainwater backflow or water accumulation in local areas.

[0063] Furthermore, the permeable pavement 1 includes a permeable surface layer 14, which is arranged below the ground, and the top of the permeable surface layer 14 is flush with the ground height; a permeable base layer 15 is arranged below the permeable base layer 15, and one end of the perforated water collecting pipe 2 is arranged in the permeable base layer 15.

[0064] In this embodiment, the permeable surface layer 14 is the part that directly contacts the ground, and is usually made of a material with good water permeability, such as permeable concrete, permeable bricks, etc. Its design allows rainwater to directly penetrate through the surface layer and enter the lower structure, while ensuring the flatness of the ground and the comfort of walking. The top of the surface layer is flush with the ground, which not only maintains the beauty of the ground, but also ensures the normal passage of pedestrians and vehicles.

[0065] The permeable base layer 15 is located below the permeable surface layer 14 and is an important component of the permeable pavement 1 structure. The permeable base layer 15 is usually composed of crushed stone, gravel or other permeable materials, has strong permeability and a certain bearing capacity, can temporarily store part of the rainwater, and allow the rainwater to continue to infiltrate into the next layer of structure or directly enter the water collection system, and also plays a role in filtering and stabilizing the ground.

[0066] One end of the perforated water collecting pipe 2 is arranged in the permeable base layer 15. Such a layout enables rainwater that penetrates through the permeable surface layer 14 and the base layer to directly enter the perforated water collecting pipe 2, so as to be efficiently collected.

[0067] Furthermore, it also includes a waterproof geotextile 16, which is arranged between the water storage module 3 and the soil layer.

[0068] In this embodiment, the waterproof geotextile 16 is laid between the water storage module 3 and the soil layer, which can effectively prevent moisture and impurities in the soil from penetrating into the water storage module 3, maintain the purity of rainwater, and prevent pollutants in the soil from entering the rainwater collection system, thereby protecting the quality of the stored rainwater and ensuring that it can be used for subsequent cleaning purposes, such as irrigation, cleaning, etc.

[0069] Furthermore, it also includes a lifting pump 17, which is arranged at the bottom of the reuse well 6, and the lifting pump 17 is used to pump and utilize rainwater.

[0070] In this embodiment, the lift pump 17 can extract and utilize the rainwater stored in the reuse well 6. In seasons with relatively small rainfall, the lift pump 17 can pump rainwater from the reuse well 6 to irrigate the organisms on the biological retention facility 7.

[0071] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A rainwater collection and utilization system, characterized in that: include: Permeable paving (1); A perforated water collecting pipe (2), one end of which is arranged in the permeable pavement (1), and the perforated water collecting pipe (2) is used to collect and transport rainwater passing through the permeable pavement (1); A water storage module (3), the water storage module (3) being located on one side of the permeable pavement (1), and the water storage module (3) being located below the perforated water collecting pipe (2), and the water storage module (3) being in communication with the perforated water collecting pipe (2); There are a plurality of water distribution pipes (4) which are spaced apart along the conveying direction of the perforated water collecting pipe (2); one end of each of the water distribution pipes (4) is connected to the perforated water collecting pipe (2), and the other end of each of the water distribution pipes (4) extends into the water storage module (3); A water distribution pipe (5) is arranged in the water storage module (3); the other ends of the plurality of water distribution pipes (4) are all connected to the water distribution pipe (5); and the water distribution pipe (5) is used to distribute rainwater.

2. A rainwater collection and utilization system according to claim 1, characterized in that: The water distribution pipe (5) has a closed end at one end and further comprises: A recycling well (6) is arranged on one side of the water storage module (3), and the other end of the water distribution pipe (5) is connected to the recycling well (6).

3. A rainwater collection and utilization system according to claim 1, characterized in that: The water distribution pipe (5) is located below the perforated water collecting pipe (2).

4. A rainwater collection and utilization system according to claim 1, characterized in that: Also includes: A biological retention facility (7) is arranged on one side of the permeable pavement (1), the biological retention facility (7) is located on the ground, and the water storage module (3) is located below the biological retention facility (7); An overflow well (8), the bottom of the overflow well (8) being connected to the perforated water collecting pipe (2), the top of the overflow well (8) being higher than the surface of the biological retention facility (7), the overflow well (8) being located at the lowest point of the protected biological retention facility (7), the top of the overflow well (8) being provided with an overflow port (9), and the overflow port (9) being higher than the ground.

5. A rainwater collection and utilization system according to claim 4, characterized in that: Also includes: A filter element (10) is arranged at the bottom of the overflow well (8), and the filter element (10) is used to filter rainwater passing through the overflow well (8).

6. A rainwater collection and utilization system according to claim 4, characterized in that: Also includes: An inspection well (11) is arranged on one side of the overflow well (8), and the inspection well (11) is connected to a municipal rainwater pipe network (12); An overflow drainage pipe (13), wherein two ends of the overflow drainage pipe (13) are respectively connected to the overflow well (8) and the inspection well (11).

7. A rainwater collection and utilization system according to claim 1, characterized in that: The permeable pavement (1) comprises: A permeable surface layer (14) is arranged below the ground, and the top of the permeable surface layer (14) is flush with the ground; A water-permeable base layer (15) is arranged below the water-permeable base layer (15), and one end of the perforated water collecting pipe (2) is arranged inside the water-permeable base layer (15).

8. A rainwater collection and utilization system according to claim 1, characterized in that: Also includes: A waterproof geotextile (16) is arranged between the water storage module (3) and the soil layer.

9. A rainwater collection and utilization system according to claim 2, characterized in that: Also includes: A lifting pump (17) is arranged at the bottom of the reuse well (6), and the lifting pump (17) is used to pump and utilize rainwater.

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