Sponge city seepage and drainage structure and sponge city water circulation system

Abstract

The invention belongs to the technical field of urban water seepage and drainage, and particularly relates to a sponge city seepage and drainage structure and a sponge city water circulation.The sponge city seepage and drainage structure comprises a low-position main drainage pipe located at the tail end of a drainage system, the water outlet end of the low-position main drainage pipe communicates with a drainage elbow through a valve, and the drainage elbow is used for centralized drainage of water; the lower end of the main confluence pipe is communicated with the low-position main drainage pipe, and the main confluence pipe is used for collecting water and converging the water into the low-position main drainage pipe; the high end of the converging main pipe is communicated with an exhaust part; the water outlet end of the siphon water storage and drainage system is arranged on one side of the confluence main pipe or the low-position main drainage pipe in a communicating mode, the water inlet end of the siphon water storage and drainage system is communicated with a siphon drainage device, and the siphon drainage device is arranged on the road surface and used for collecting accumulated water on the road.

Description

Technical Field

[0001] The present invention belongs to the technical field of urban water infiltration and drainage, and in particular relates to a sponge city infiltration and drainage structure and a sponge city water circulation system. Background Art

[0002] The sponge city seepage and drainage structure and the sponge city water circulation system are a comprehensive urban construction technology solution that aims to solve the problems of waterlogging and waterlogging faced in the process of urbanization. The system includes subsystems such as permeable road system, building roof greening system, rainwater utilization system, grey water reuse system, flood detention and drainage system, control system and information release system. By setting up permeable pavement and greening facilities on roads and building roofs, rainwater and sewage are collected, stored and purified, and rainwater resources are effectively utilized and recycled, thereby improving the urban water environment and improving the city's flood control and drainage capabilities. The implementation of this system will enable cities to have stronger resistance to extreme weather and promote the sustainable development of the urban ecological environment.

[0003] At present, the existing drainage system generally has the problem of poor drainage. Heavy rain will cause urban waterlogging. Temporary pumping and drainage are required, which affects the normal operation of the city and also causes huge economic losses, especially in some coastal cities. Especially in extreme rainfall conditions, the structure of the sponge city cannot effectively handle rainwater in a timely manner, which is prone to flooding disasters.

[0004] Therefore, there is an urgent need for a sponge city infiltration and drainage structure and a sponge city water circulation system to solve the problem. Summary of the invention

[0005] The purpose of the present invention is to provide a sponge city infiltration and drainage structure and a sponge city water circulation system to solve the above problems.

[0006] To achieve the above object, the present invention provides the following solutions:

[0007] Sponge city infiltration and drainage structure and sponge city water circulation system, including:

[0008] A low-level main drainage pipe is located at the end of the drainage system. The water outlet of the low-level main drainage pipe is connected to a drainage elbow through a valve. The drainage elbow is used for centralized water discharge.

[0009] A confluence main pipe, the lower end of which is connected to the low-position main drainage pipe, and is used to collect and converge water into the low-position main drainage pipe; the high end of the confluence main pipe is connected to an exhaust part;

[0010] A siphon water storage and drainage system, wherein the water outlet of the siphon water storage and drainage system is connected to the confluence main pipe or one side of the low-level main drainage pipe, and the water inlet of the siphon water storage and drainage system is connected to a siphon drainage device, which is arranged on the road surface and is used to collect road water.

[0011] Preferably, the siphon water storage and drainage system comprises a water storage tank body, wherein the water storage tank body is provided with a muddy water filter part, and the muddy water filter part separates the water storage tank body into a water storage sedimentation chamber and a drainage chamber;

[0012] A partition is fixedly connected to the inner wall of the top of the water storage sedimentation chamber, and a gap is provided between the bottom of the partition and the bottom of the water storage tank;

[0013] One side of the top of the water storage sedimentation chamber is connected to the bottom end of a slanted water inlet pipe, and the slanted water inlet pipe is used to communicate with the water outlet end of the siphon drainage device;

[0014] The top of the water storage sedimentation chamber is connected to a water intake portion;

[0015] The drainage cavity is provided with a water level detection part and an exhaust part;

[0016] The bottom end of the drainage cavity is communicated with one side of the confluence main pipe or the low-position main drainage pipe through a drainage pipe.

[0017] Preferably, the muddy water filtering part comprises an inclined plate, the lower end of the inclined plate is fixedly connected to the bottom of the water storage tank, the lower end of the inclined plate is arranged close to the partition, the high end of the inclined plate is arranged away from the partition, the high end of the inclined plate is fixedly connected to the bottom end of the vertical plate, the top end of the vertical plate is fixedly connected to the top inner wall of the water storage tank, and a filter screen is embedded in the middle of the vertical plate, and the filter screen is used for the communication between the drainage cavity and the water storage sedimentation cavity;

[0018] The level of the filter screen is below the level of the water outlet end of the inclined water inlet pipe.

[0019] Preferably, the water intake part includes a water collection pipe, which is fixed to the water storage tank, and the bottom end of the water collection pipe extends into the water storage sedimentation chamber and communicates with the water storage sedimentation chamber. The bottom end of the water collection pipe is arranged close to the partition, and the top end of the water collection pipe passes through the road, and the water outlet end of the water collection pipe is located above the road surface.

[0020] Preferably, the water level detection unit comprises a water level sensor, the water level sensor is located below the filter, the water level sensor is fixedly connected to the side wall of the vertical plate, and the water level sensor is located in the drainage cavity.

[0021] Preferably, the exhaust part includes an exhaust pipe, the bottom end of the exhaust pipe is connected and arranged just above the drainage cavity, the top end of the exhaust pipe is located above the road surface, and a check valve is arranged in the exhaust pipe to prevent external air from entering the drainage cavity.

[0022] Preferably, a slope is provided at the bottom of the drainage cavity, and the lower end of the slope converges at the top of the drainage pipe. The slope is used for water to converge and flow into the drainage pipe.

[0023] Preferably, the exhaust part includes a high-level connecting pipe, the top of which is located above the road surface, the air outlet end of the connecting pipe is provided with a check valve to prevent external air from entering the confluence main pipe, and the bottom of the high-level connecting pipe is connected to the high end of the confluence main pipe.

[0024] Compared with the prior art, the present invention has the following advantages and technical effects:

[0025] When in use, the low-level main drainage pipe is used as the main outlet pipe for municipal drainage, and its design height should be below other drainage pipes. Each low-level main drainage pipe can be connected to multiple confluence main pipes in parallel. The confluence main pipe is used to converge the water in the municipal drainage area and guide it into the low-level main drainage pipe. A siphon water storage drainage system is connected and arranged on the low-level main drainage pipe or the multiple confluence main pipes. There are multiple siphon water storage drainage systems, which are arranged at the bottom of areas prone to waterlogging, and are used for rainwater collection, storage and discharge. Each siphon water storage drainage system is connected to multiple siphon drainage devices, which are arranged at the bottom of areas prone to waterlogging, and are used to collect and discharge road surface water into the corresponding siphon water storage drainage system to avoid waterlogging. By adopting the siphon drainage device, when there is a lot of road surface water, the road surface water can be sucked into the corresponding siphon water storage drainage system through the siphon principle. The siphon drainage device has a high drainage efficiency, so that the road surface water can be quickly accumulated in the siphon water storage drainage system, and mud and water are separated in the siphon water storage drainage system. When the siphon water storage drainage system is full of water, the water in the siphon water storage drainage system directly enters the low-level main drainage pipe or enters the low-level main drainage pipe through the confluence main pipe, and is discharged from the drainage elbow at the outlet end of the low-level main drainage pipe. When the water volume is small, the water in the low-level main drainage pipe is discharged by gravity. When the water volume is large, the valve can be closed first. At this time, the low-level main drainage pipe will be filled, and the air in the low-level main drainage pipe will move to the upper part of the confluence main pipe, and as the water volume increases, the water will fill the confluence main pipe. The air in the pipeline is discharged by various The water is discharged from the exhaust part connected to the high end of the confluence main pipe. Since the water has overflowed the outlet end of each siphon water storage drainage system, the siphon condition of the main drain pipe or confluence main pipe and each siphon water storage drainage system has been created. When the valve is opened, the water in the drainage elbow is discharged under the action of gravity, and the water that has been filled in the low-level main drain pipe and confluence main pipe is led out. The water in each siphon water storage drainage system will be pumped out under the siphon action, which can improve the overall drainage efficiency of the drainage network and speed up the discharge of accumulated water in the waterlogged area. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative labor:

[0027] Figure 1 It is a schematic diagram of the structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the structure of the siphon water storage and drainage system of the present invention;

[0029] Figure 3 For the present invention Figure 2 A partial enlarged view of the middle part;

[0030] Figure 4 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0031] Among them, 1. low-level main drainage pipe; 2. confluence main pipe; 3. drainage elbow; 4. valve; 5. siphon water storage drainage system; 6. siphon drainage device; 7. high-level connecting pipe; 501. water storage tank; 502. drainage pipe; 503. slope; 504. drainage cavity; 505. water storage sedimentation cavity; 506. partition; 507. inclined plate; 508. exhaust pipe; 509. water collection pipe; 510. vertical plate; 511. water level sensor Response device; 512, filter screen; 513, inclined water inlet pipe; 601, water collecting pipe; 602, sewage tank; 603, ring plate; 604, conical plug; 605, connecting rod; 606, leaking hole; 607, hook plate; 608, supporting ring plate; 609, annular filter screen; 610, column; 611, top cover; 612, floating partition; 613, floating ring; 614, limit ring; 615, support rod; 616, bushing. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] Embodiment 1:

[0035] Reference Figures 1 to 3 This embodiment discloses a sponge city infiltration and drainage structure and a sponge city water circulation system, including:

[0036] The low-level main drainage pipe 1 is located at the end of the drainage system. The water outlet of the low-level main drainage pipe 1 is connected to a drainage elbow 3 through a valve 4. The drainage elbow 3 is used for centralized water discharge.

[0037] The confluence main pipe 2, the lower end of which is connected to the low-position main drainage pipe 1, is used to collect and converge water into the low-position main drainage pipe 1; the upper end of the confluence main pipe 2 is connected to an exhaust part;

[0038] A siphon water storage and drainage system 5, the water outlet of which is connected to a confluence main pipe 2 or a side of a low-position main drainage pipe 1, and the water inlet of which is connected to a siphon drainage device 6, which is arranged on the road surface and is used to collect road water.

[0039] When in use, the low-level main drainage pipe 1 is used as the main outlet pipe for municipal drainage, and its design height should be below other drainage pipes. Each low-level main drainage pipe 1 can be connected in parallel with multiple confluence main pipes 2. The confluence main pipes 2 are used to converge the water in the municipal drainage area and guide it into the low-level main drainage pipe 1. A siphon water storage drainage system 5 is connected and arranged on the low-level main drainage pipe 1 or the multiple confluence main pipes 2. There are multiple siphon water storage drainage systems 5, which are arranged at the bottom of the area prone to waterlogging, for collecting, storing and discharging rainwater. Each siphon water storage drainage system 5 is connected to the low-level main drainage pipe 1 or the multiple confluence main pipes 2. The system 5 is connected with a plurality of siphon drainage devices 6, which are arranged at the bottom of the area prone to waterlogging, and are used to collect and discharge the surface water on the road into the corresponding siphon water storage and drainage system 5 to avoid waterlogging. By adopting the siphon drainage device 6, when there is a lot of surface water on the road, the surface water on the road can be sucked into the corresponding siphon water storage and drainage system 5 through the siphon principle. The siphon drainage device 6 has a high drainage efficiency, so that the surface water on the road can be quickly accumulated in the siphon water storage and drainage system 5, and the mud and water are separated in the siphon water storage and drainage system 5. After the siphon water storage drainage system 5 is filled with water, the water in the siphon water storage drainage system 5 directly enters the low-level main drainage pipe 1 or enters the low-level main drainage pipe 1 through the confluence main pipe 2, and is discharged from the drainage elbow 3 at the outlet end of the low-level main drainage pipe 1. When the water volume is small, the water in the low-level main drainage pipe 1 is discharged by gravity. When the water volume is large, the valve 4 can be closed first. At this time, the low-level main drainage pipe 1 will be filled, and the air in the low-level main drainage pipe 1 will move to the upper part of the confluence main pipe 2, and as the water volume increases, the water fills the confluence main pipe 2, and the air in the pipeline is discharged by each valve. The water is discharged from the exhaust part connected to the high end of each confluence main pipe 2, and because the water has overflowed the water outlet end of each siphon water storage drainage system 5, the siphon condition of the main drain pipe 1 or the confluence main pipe 2 and each siphon water storage drainage system 5 has been created at this time. When the valve 4 is opened, the water in the drainage elbow 3 is discharged under the action of gravity, and the water that has been filled in the low-level main drain pipe 1 and the confluence main pipe 2 is led out. The water in each siphon water storage drainage system 5 will be pumped out under the siphon action, which can improve the overall drainage efficiency of the drainage network and speed up the discharge of accumulated water in the waterlogged area.

[0040] Further optimizing the scheme, the siphon water storage and drainage system 5 includes a water storage tank 501, and a muddy water filter is provided in the water storage tank 501, and the muddy water filter divides the water storage tank 501 into a water storage sedimentation chamber 505 and a drainage chamber 504;

[0041] A partition 506 is fixedly connected to the inner wall of the top of the water storage sedimentation chamber 505, and a gap is provided between the bottom of the partition 506 and the bottom of the water storage box 501;

[0042] One side of the top of the water storage and sedimentation chamber 505 is connected to the bottom end of a slanted water inlet pipe 513, and the slanted water inlet pipe 513 is used to communicate with the water outlet end of the siphon drainage device 6;

[0043] The top of the water storage and settling chamber 505 is connected to a water intake portion;

[0044] The drainage chamber 504 is provided with a water level detection unit and an exhaust unit;

[0045] The bottom end of the drainage cavity 504 is communicated with one side of the confluence main pipe 2 or the low-position main drainage pipe 1 through the drainage pipe 502 .

[0046] Further optimized solution, the muddy water filtering part includes an inclined plate 507, the lower end of the inclined plate 507 is fixedly connected to the bottom of the water storage tank 501, the lower end of the inclined plate 507 is arranged close to the partition 506, the high end of the inclined plate 507 is arranged away from the partition 506, the high end of the inclined plate 507 is fixedly connected to the bottom end of the vertical plate 510, the top end of the vertical plate 510 is fixedly connected to the top inner wall of the water storage tank 501, and the middle part of the vertical plate 510 is embedded with a filter screen 512, and the filter screen 512 is used for the communication between the drainage chamber 504 and the water storage sedimentation chamber 505;

[0047] The level of the filter screen 512 is located below the level of the water outlet end of the inclined water inlet pipe 513 .

[0048] To further optimize the solution, the water intake part includes a water collection pipe 509, which is fixedly connected to the water storage tank 501. The bottom end of the water collection pipe 509 extends into the water storage sedimentation chamber 505 and is connected to the water storage sedimentation chamber 505. The bottom end of the water collection pipe 509 is arranged close to the partition 506, and the top end of the water collection pipe 509 passes through the road. The water outlet end of the water collection pipe 509 is located above the road surface.

[0049] According to a further optimized solution, the water level detection unit includes a water level sensor 511 . The water level sensor 511 is located below the filter screen 512 . The water level sensor 511 is fixedly connected to the side wall of the vertical plate 510 . The water level sensor 511 is located in the drainage cavity 504 .

[0050] A further optimized solution is that the exhaust part includes an exhaust pipe 508, the bottom end of the exhaust pipe 508 is connected and arranged just above the drainage chamber 504, the top end of the exhaust pipe 508 is located above the road surface, and a check valve is arranged in the exhaust pipe 508 to prevent external air from entering the drainage chamber 504.

[0051] To further optimize the solution, a slope 503 is provided at the bottom of the drainage cavity 504 , and the lower end of the slope 503 converges at the top of the drainage pipe 502 . The slope 503 is used for water to converge and flow into the drainage pipe 502 .

[0052] To further optimize the solution, the exhaust part includes a high-level connecting pipe 7, the top of the high-level connecting pipe 7 is located above the road surface, the air outlet end of the connecting pipe 7 is provided with a check valve to prevent external air from entering the confluence main pipe 2, and the bottom of the high-level connecting pipe 7 is connected to the high end of the confluence main pipe 2.

[0053] The use process of the present invention is as follows:

[0054] 1) When there is less water accumulation:

[0055] Through gravity drainage of each siphon drainage device 6, water is discharged into the corresponding inclined water inlet pipe 513, and the inclined water inlet pipe 513 gathers the water into the water storage sedimentation chamber 505. Since the amount of water is small, the water can settle statically in the water storage sedimentation chamber 505, so that the silt and suspended solids contained in the water are settled to the bottom of the water storage sedimentation chamber 505. In addition, since the water storage tank 501 is buried underground, the temperature changes little, and the evaporation rate of the water in the water storage sedimentation chamber 505 is low, which can play a good water storage role. This part of the stored water can be led out of the ground through the water collection pipe 509 for irrigation, water injection by a sprinkler truck, etc.

[0056] 2) When there is a lot of water accumulation:

[0057] When the rainfall is heavy, waterlogging occurs on the road surface. At this time, the accumulated water quickly flows to the inclined water inlet pipe 513 through the siphon drainage method of each siphon drainage device 6, and enters the water storage sedimentation chamber 505 through the inclined water inlet pipe 513. The water level in the water storage sedimentation chamber 505 is quickly raised, and the sediment at the bottom of the water storage sedimentation chamber 505 is also disturbed. The partition plate 506 can prevent the water above the inclined plate 507 from being disturbed, and the suspended solids in the water above the inclined plate 507 settle and fall onto the inclined plate 507, and then flow along the inclined plate 507. The inclined plate 507 slopes down to the bottom of the water storage sedimentation chamber 505, and the clean water above the inclined plate 507 enters the drainage chamber 504 through the filter screen 512 and is discharged from the drainage pipe 502. Since the drainage capacity of the drainage pipe 502 is limited, water is stored in the drainage chamber 504, and the gas in the drainage chamber 504 is discharged through the exhaust pipe 508. The water level in the drainage chamber 504 rises, and the water level in the drainage chamber 504 can be sensed by the water level sensor 511. When the water level in the drainage chamber 504 reaches the highest level, it flows to the drainage chamber 504. The municipal management personnel sends a signal, indicating that the siphon water storage and drainage system 5 has reached the drainage limit. At this time, the municipal management personnel closes the valve 4, so that the low-level main drainage pipe 1 and the confluence main pipe 2 are quickly filled with water, and then the valve 4 is opened. At this time, the low-level main drainage pipe 1 is switched from the initial gravity drainage to the siphon drainage, and the drainage volume of the low-level main drainage pipe 1 or the confluence main pipe 2 is much larger than the drainage volume of each siphon water storage and drainage system 5, and the siphon principle is used to suck out the water in the drainage cavity 504 of each siphon water storage and drainage system 5. Compared with the previous gravity drainage, the drainage capacity is greatly improved, and the water in the drainage cavity 504 is quickly discharged. The water level in the drainage cavity 504 drops, so that the water in the water storage sedimentation cavity 505 can re-enter the drainage cavity 504. After the water in the water storage sedimentation cavity 505 is discharged, it can be sucked in by each siphon drainage device 6. Through this arrangement, the entire drainage network forms a siphon effect, thereby quickly discharging the waterlogging water, greatly improving the drainage efficiency.

[0058] Embodiment 2:

[0059] refer to Figure 4The difference between this embodiment and embodiment 1 is that the siphon drainage device 6 includes a water collecting pipe 601, the bottom of the water collecting pipe 601 is connected to the side wall of the inclined water inlet pipe 513, a ring plate 603 is axially connected to the inner side of the middle of the water collecting pipe 601, a conical plug 604 is movably provided in the middle of the ring plate 603, the conical plug 604 is used to adjust the size of the flow channel in the middle of the ring plate 603, a connecting rod 605 is axially connected to the top of the conical plug 604, the connecting rod 605 vertically slides with a shaft sleeve 616, the shaft sleeve 616 is fixed to the inner wall of the water collecting pipe 601 through a support rod 615, a floating baffle 612 is axially connected to the top of the connecting rod 605, a floating ring 613 is axially connected to the bottom of the floating baffle 612, the floating ring 613 is limited by a limiting ring 614, a plurality of columns 610 are fixed to the side wall of the limiting ring 614, and the plurality of columns 610 are arranged at equal intervals in the circumferential direction, and a plurality of columns 610 are fixed to the side wall of the limiting ring 614. The bottom of the column 610 is fixedly connected to the top of the same support ring plate 608, the support ring plate 608 is axially connected to the outside of the water collecting pipe 601, the outside of several columns 610 is wrapped with an annular filter 609, and the top of several columns 610 is fixedly connected to the bottom of the same top cover 611; the outer side of the water collecting pipe 601 is axially connected with a sewage trough 602, the bottom of the sewage trough 602 is located below the support ring plate 608, the top of the sewage trough 602 and the top of the top cover 611 are located in the same horizontal plane, and a distance is left between the inner wall of the sewage trough 602 and the column 610, the bottom of the sewage trough 602 is axially connected with a hook plate 607, and the bottom of the sewage trough 602 is connected to a plurality of leakage holes 606, and the plurality of leakage holes 606 are arranged around the side wall of the water collecting pipe 601, and the leakage holes 606 are used to connect the bottom of the sewage trough 602 with the water collecting pipe 601.

[0060] When in use, when the rainfall is small, rainwater accumulates in the sewage trough 602. When the water level in the sewage trough 602 rises to overflow the top surface of the supporting ring plate 608, the rainwater can flow into the water collecting pipe 601 through the gaps between the columns 610. At this time, the flow channel gap between the ring plate 603 and the conical plug 604 is the smallest, and the drainage speed is the slowest. Under the action of gravity, the water is discharged from the water collecting pipe 601 to the inclined water inlet pipe 513. When the water volume increases, the water collecting pipe 601 is filled. The water surface height in the water collecting pipe 601 exceeds the top of the supporting ring plate 608 and is connected with the water in the sewage trough 602. At this time, the water level continues to rise until the floating ring 613 floats up with the rising water level. When the floating ring 613 floats up, the conical plug 604 separates from the ring plate 603, and the flow channel gap between the conical plug 604 and the ring plate 603 becomes larger, thereby improving the drainage efficiency. The function of the limiting ring 614 is to ensure that the conical plug 604 and the ring plate 603 has a minimum flow channel gap. When the accumulated water height reaches the plane where the top cover 611 is located, the flow channel gap between the conical plug 604 and the ring plate 603 is the largest. As the flow channel gap becomes larger, the accumulated water in the water collecting pipe 601 is full, and then a siphon effect is formed. When the flow channel gap becomes larger and the drainage speed increases, the accumulated water on the road surface can be quickly sucked in under the siphon effect. The annular filter 609 prevents debris from clogging the gap between adjacent columns 610. The hook plate 607 set at the bottom of the sewage trough 602 is used to hook larger debris during drainage. The leakage hole 606 connected to one side of the bottom of the sewage trough 602 can assist drainage in the initial stage of drainage on the one hand, and on the other hand, when the siphon effect is formed, suction can be formed at the bottom of the sewage trough 602 to suck larger debris into the sewage trough 602 and be hooked by the hook plate 607 to prevent it from clogging the gap between the columns 610, thereby ensuring the drainage effect.

[0061] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0062] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. Sponge city infiltration and drainage structure and sponge city water circulation system, characterized in that: include: A low-position main drainage pipe (1) is located at the end of the drainage system, and the water outlet end of the low-position main drainage pipe (1) is connected to a drainage elbow (3) through a valve (4), and the drainage elbow (3) is used for centralized water discharge; a confluence main pipe (2), the lower end of which is in communication with the low-position main drainage pipe (1) and is used to collect water and flow it into the low-position main drainage pipe (1); the upper end of the confluence main pipe (2) is in communication with an exhaust portion; A siphon water storage and drainage system (5), wherein the water outlet of the siphon water storage and drainage system (5) is connected to the confluence main pipe (2) or one side of the low-position main drainage pipe (1), and the water inlet of the siphon water storage and drainage system (5) is connected to a siphon drainage device (6), wherein the siphon drainage device (6) is arranged on the road surface and is used to collect water accumulated on the road.

2. The sponge city drainage structure and sponge city water circulation system according to claim 1 are characterized by: The siphon water storage and drainage system (5) comprises a water storage box (501), wherein a muddy water filter is provided in the water storage box (501), and the muddy water filter divides the water storage box (501) into a water storage sedimentation chamber (505) and a drainage chamber (504); A partition plate (506) is fixedly connected to the inner wall of the top of the water storage sedimentation chamber (505), and a gap is provided between the bottom of the partition plate (506) and the bottom of the water storage box (501); One side of the top of the water storage sedimentation chamber (505) is connected to the bottom end of an inclined water inlet pipe (513), and the inclined water inlet pipe (513) is used to communicate with the water outlet end of the siphon drainage device (6); The top of the water storage sedimentation chamber (505) is connected to a water intake portion; The drainage cavity (504) is provided with a water level detection unit and an exhaust unit; The bottom end of the drainage cavity (504) is connected to one side of the confluence main pipe (2) or the low-position main drainage pipe (1) through a drainage pipe (502).

3. The sponge city drainage structure and sponge city water circulation system according to claim 2 are characterized by: The muddy water filtering part comprises an inclined plate (507), the lower end of the inclined plate (507) is fixedly connected to the bottom of the water storage tank (501), the lower end of the inclined plate (507) is arranged close to the partition (506), the upper end of the inclined plate (507) is arranged away from the partition (506), the upper end of the inclined plate (507) is fixedly connected to the bottom end of the vertical plate (510), the top end of the vertical plate (510) is fixedly connected to the top inner wall of the water storage tank (501), and a filter screen (512) is embedded in the middle of the vertical plate (510), and the filter screen (512) is used for the communication between the drainage chamber (504) and the water storage sedimentation chamber (505); The level of the filter screen (512) is located below the level of the water outlet end of the inclined water inlet pipe (513).

4. The sponge city drainage structure and sponge city water circulation system according to claim 2 are characterized by: The water intake portion comprises a water collection pipe (509), the water collection pipe (509) is fixedly connected to the water storage box (501), the bottom end of the water collection pipe (509) extends into the water storage sedimentation chamber (505) and communicates with the water storage sedimentation chamber (505), the bottom end of the water collection pipe (509) is arranged close to the partition (506), the top end of the water collection pipe (509) passes through the road, and the water outlet end of the water collection pipe (509) is located above the road surface.

5. The sponge city drainage structure and sponge city water circulation system according to claim 3 are characterized by: The water level detection unit comprises a water level sensor (511), the water level sensor (511) is located below the filter screen (512), the water level sensor (511) is fixedly connected to the side wall of the vertical plate (510), and the water level sensor (511) is located in the drainage cavity (504).

6. The sponge city drainage structure and sponge city water circulation system according to claim 2, characterized in that: The exhaust portion comprises an exhaust pipe (508), the bottom end of the exhaust pipe (508) is connected and arranged just above the drainage chamber (504), the top end of the exhaust pipe (508) is located above the road surface, and a check valve is arranged in the exhaust pipe (508) for preventing external air from entering the drainage chamber (504).

7. The sponge city drainage structure and sponge city water circulation system according to claim 2, characterized in that: A slope (503) is provided at the bottom of the drainage cavity (504), and the lower end of the slope (503) converges at the top of the drainage pipe (502). The slope (503) is used for water to converge and flow into the drainage pipe (502).

8. The sponge city drainage structure and sponge city water circulation system according to claim 1, characterized in that: The exhaust section comprises a high-position connecting pipe (7), the top of which is located above the road surface, a check valve is provided at the air outlet end of the connecting pipe (7) to prevent external air from entering the main confluence pipe (2), and the bottom of the high-position connecting pipe (7) is connected to the high end of the main confluence pipe (2).

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