Bioretention structure for ecological restoration of rivers and lakes

Abstract

The utility model discloses a biological retention structure for ecological restoration of rivers and lakes, which comprises a planting pond, a settling pond and a water storage pond, a vertical partition plate and a transverse filter screen are arranged in the settling pond, and the vertical partition plate and the transverse filter screen divide the settling pond into a spraying cavity, a garbage collecting cavity, a spraying settling pond and a front settling pond, the spraying cavity is arranged right above the spraying sedimentation tank, the garbage collecting cavity is arranged right above the front sedimentation tank, a downward drip washing spray head is arranged at the top of the spraying cavity, a hollow cover plate is arranged at the top of the garbage collecting cavity, and a water outlet is formed in the top of the garbage collecting cavity. A water outlet for connecting the spray sedimentation tank and the front sedimentation tank is formed in the vertical partition plate, and the middle part of the transverse filter screen is rotationally connected into the sedimentation tank. According to the utility model, the transverse filter screen can be prevented from being blocked by garbage, the garbage is finally collected in the spray sedimentation tank, and the problems of blockage and water accumulation are effectively avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of ecological restoration, and in particular to a biological retention structure used for ecological restoration of rivers and lakes. Background Art

[0002] Bioretention ponds can not only effectively intercept solid waste, suspended matter, organic matter, etc. in surface runoff, but also have a good adsorption and degradation effect on pollutants such as nitrogen and phosphorus dissolved in water. Currently, existing bioretention ponds generally have problems such as blockage and water accumulation, which will seriously affect the ecological effect of bioretention ponds and even have a negative impact on the environment. Utility Model Content

[0003] 1. Technical problems to be solved by the utility model

[0004] The utility model aims to solve the technical problems existing in the prior art and to provide a biological retention structure for river and lake ecological restoration, which can prevent the horizontal filter from being blocked by garbage. The garbage is finally collected in the spray sedimentation tank, effectively avoiding the occurrence of blockage and water accumulation problems.

[0005] 2. Technical solution

[0006] In order to solve the above problems, the technical solution provided by the utility model is:

[0007] A bioretention structure for river and lake ecological restoration, comprising a planting pool, a sedimentation pool and a water storage pool, wherein the sedimentation pool is arranged on the horizontal side of the planting pool, the water storage pool is arranged at the bottom of the planting pool, a vertical partition and a horizontal filter screen are arranged in the sedimentation pool, the vertical partition and the horizontal filter screen divide the sedimentation pool into a spray chamber, a garbage collection chamber, a spray sedimentation pool and a pre-sedimentation pool, the pre-sedimentation pool is arranged close to the planting pool, the spray sedimentation pool and the pre-sedimentation pool are arranged horizontally at intervals, the spray chamber is arranged directly above the spray sedimentation pool, the garbage collection chamber is arranged directly above the pre-sedimentation pool, and the pre-sedimentation pool is arranged at intervals ... The top of the spray chamber is provided with a downwardly arranged rinse nozzle, the top of the garbage collection chamber is provided with a hollow cover plate, the vertical partition is provided with a drain outlet for connecting the spray sedimentation tank and the pre-sedimentation tank, the middle part of the horizontal filter is rotatably connected to the sedimentation tank, the vertical partition is provided with a notch allowing the horizontal filter to pass through when rotating, and the notch is provided with a first revolving door and a second revolving door, the first revolving door and the second revolving door are respectively located on the upper and lower sides of the horizontal filter and are rotatably connected to the vertical partition, and the free ends of the first revolving door and the second revolving door are arranged close to the horizontal filter.

[0008] Optionally, both ends of the transverse filter are connected with folding plates, and the folding plates are rotatably connected to the transverse filter.

[0009] Optionally, a sludge pump is provided at the bottom of the pre-sedimentation tank.

[0010] Optionally, a first water level sensor is provided in the middle of the pre-sedimentation tank, and a second water level sensor is provided on the top of the garbage collection chamber, and both the first water level sensor and the second water level sensor are electrically connected to the sludge pump.

[0011] Optionally, a first submersible pump is provided in the water reservoir, a discharge outlet of the first submersible pump extends to the top of the planting pool, and a humidity sensor electrically connected to the first submersible pump is provided in the planting pool.

[0012] Optionally, a second submersible pump and a third water level sensor are provided in the water reservoir, the second submersible pump and the third water level sensor are electrically connected, and the second submersible pump is used to discharge excess water in the water reservoir.

[0013] Optionally, a planting soil layer and a filter material layer are sequentially arranged in the planting pool from top to bottom, and a drainage channel is also arranged in the planting pool. The drainage channel extends from the top of the planting pool to the bottom of the planting pool, and drainage filter material is arranged in the drainage channel.

[0014] Optionally, the filter material particle size of the filter material layer gradually increases from top to bottom.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0017] The biological retention structure used for ecological restoration of rivers and lakes allows the garbage in the rotating garbage collection chamber of the horizontal filter to enter the spray sedimentation tank under the action of gravity. At this time, the original garbage interception surface of the horizontal filter is set downward, and then the water from the rinse nozzle in the spray chamber is used to flush the garbage interception surface to prevent the horizontal filter from being blocked by garbage. The garbage is finally collected in the spray sedimentation tank, effectively avoiding the occurrence of blockage and water accumulation problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of a bioretention structure for river and lake ecological restoration proposed in an embodiment of the utility model;

[0019] 1. Planting pool; 2. Sedimentation pool; 3. Reservoir; 4. Vertical partition; 5. Horizontal filter; 6. Spray chamber; 7. Garbage collection chamber; 8. Spray sedimentation pool; 9. Pre-sedimentation pool; 10. Rinse nozzle; 11. Hollow cover; 12. Drain; 13. First revolving door; 14. Second revolving door; 15. Folding plate; 16. Sludge pump; 17. First water level sensor; 18. Second water level sensor; 19. First submersible pump; 20. Humidity sensor; 21. Second submersible pump; 22. Third water level sensor; 23. Planting soil layer; 24. Filter material layer; 25. Drainage channel. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementation methods described here are only used to explain the utility model and do not limit the protection scope of the utility model.

[0021] It should be noted that when an element is referred to as being "fixed to", "disposed on", "fixed on" or "installed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. Further, when an element is considered to be "fixedly connected to" another element, the two may be fixed in a detachable connection manner or in a non-detachable connection manner, such as socketing, snap-on, one-piece fixation, welding, etc., which can be achieved in the prior art and will not be repeated here. When an element is perpendicular or approximately perpendicular to another element, it means that the ideal state of the two is vertical, but due to the influence of manufacturing and assembly, there may be a certain vertical error. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0023] The “first” and “second” involved in the present invention do not represent specific quantities and orders, but are merely used to distinguish names.

[0024] Combined with Figure 1A bioretention structure for river and lake ecological restoration in this embodiment includes a planting pool 1, a sedimentation pool 2 and a water storage pool 3. The sedimentation pool 2 is arranged on the horizontal side of the planting pool 1, and the upper end of the sedimentation pool 2 is arranged higher than the planting pool 1. The water storage pool 3 is arranged at the bottom of the planting pool 1. A vertical partition 4 and a horizontal filter 5 are arranged in the sedimentation pool 2. The horizontal filter 5 is arranged at the upper part of the sedimentation pool 2. The space below the horizontal filter 5 is larger than the space above the horizontal filter 5. The vertical partition 4 is arranged in the middle of the sedimentation pool 2, and the space on the left and right sides of the vertical partition 4 is The vertical partitions 4 and the horizontal filters 5 are arranged crosswise, and the vertical partitions 4 and the horizontal filters 5 divide the sedimentation tank 2 into a spray chamber 6, a garbage collection chamber 7, a spray sedimentation tank 8 and a pre-sedimentation tank 9. The pre-sedimentation tank 9 is arranged close to the planting tank 1, and the pre-sedimentation tank 9 is separated from the planting tank by a dense net. The spray sedimentation tank 8 and the pre-sedimentation tank 9 are arranged horizontally at intervals, the spray chamber 6 is arranged just above the spray sedimentation tank 8, the garbage collection chamber 7 is arranged just above the pre-sedimentation tank 9, and the top of the spray chamber 6 is provided with a spray chamber arranged downward. The nozzle 10 is washed, a hollow cover plate 11 is provided on the top of the garbage collection chamber 7, a drain port 12 for connecting the spray sedimentation tank 8 and the pre-sedimentation tank 9 is provided on the vertical partition 4, and the drain port 12 is provided at the middle height of the vertical partition 4. The middle part of the horizontal filter 5 is rotatably connected to the sedimentation tank 2, and a notch is provided on the vertical partition 4 to allow the horizontal filter 5 to pass through when rotating, so as to avoid the horizontal filter 5 from colliding with the vertical partition 4 when rotating. The first revolving door 13 and the second revolving door 14 are provided at the notch. 4 are respectively located at the upper and lower sides of the horizontal filter 5 and are rotatably connected to the vertical partition 4. The rotation of the horizontal filter 5, the first revolving door 13 and the second revolving door 14 are all controlled by a motor. When the horizontal filter 5 does not rotate, the free ends of the first revolving door 13 and the second revolving door 14 are arranged close to the horizontal filter 5. At this time, the garbage in the garbage collection chamber 7 cannot enter the spray chamber 6, and when the water in the spray sedimentation tank 8 is large, the second revolving door 14 can prevent the garbage in the spray sedimentation tank 8 from entering the pre-sedimentation tank 9.

[0025] The biological retention structure used for ecological restoration of rivers and lakes allows the garbage in the rotating garbage collection chamber 7 of the horizontal filter 5 to enter the spray sedimentation tank 8 under the action of gravity. At this time, the original garbage interception surface on the horizontal filter 5 is set facing downward, and then the rinse nozzle 10 in the spray chamber 6 outputs water to flush the garbage interception surface to prevent the horizontal filter 5 from being blocked by garbage. The garbage is finally collected in the spray sedimentation tank 8, effectively avoiding the occurrence of blockage and water accumulation problems.

[0026] As a preferred solution of the utility model, both ends of the horizontal filter 5 are connected with folding plates 15, which are rotatably connected to the ends of the horizontal filter 5. The folding plates 15 are controlled to rotate by a motor installed on the side of the horizontal filter 5. A chute cooperating with the motor is provided on the inner wall of the sedimentation tank 2 to adapt to the rotation of the horizontal filter 5. When the horizontal filter 5 rotates, the folding plates 15 preferentially move with the horizontal filter 5 and rotate toward the garbage intercepting surface of the horizontal filter 5 until they cooperate with the horizontal filter 5 to clamp the garbage, thereby preventing the garbage on the horizontal filter 5 from sliding from one end to the other end. Figure 1 As shown, when there is a lot of garbage on the upper right side of the horizontal filter 5, the folding plate 15 rotates to the upper left to clamp the garbage, and then the horizontal filter 5 rotates counterclockwise to make the original left part used as a new garbage interception surface. The folding plate 15 will only open to release the garbage after the right side of the horizontal filter 5 rotates to the left side.

[0027] As a preferred solution of the utility model, in order to facilitate the cleaning of the sludge in the pre-sedimentation tank 9, a sludge pump 16 is provided at the bottom of the pre-sedimentation tank 9, a first water level sensor 17 is provided in the middle of the pre-sedimentation tank 9, and a second water level sensor 18 is provided at the top of the garbage collection chamber 7. The first water level sensor 17 and the second water level sensor 18 are both electrically connected to the sludge pump 16. When the liquid level reaches the position of the first water level sensor 17, the sludge pump 16 starts to pump water into the river channel so that the water level is always kept below the first water level sensor 17. When the second water level sensor 18 detects water flow, it means that the rainwater above is heavy, and the sludge pump 16 stops working at this time. When the second water level sensor 18 does not monitor the water flow, it means that the water from above is reduced, and the sludge pump 16 continues to work until the water is lowered to the position of the first water level sensor 17.

[0028] As a preferred embodiment of the utility model, a first submersible pump 19 is provided in the water reservoir 3, and the discharge outlet of the first submersible pump 19 extends to the top of the planting pool 1 through a pipe. A humidity sensor 20 electrically connected to the first submersible pump 19 is provided in the planting pool 1. The humidity sensor 20 is arranged on the planting soil layer at the top of the planting pool 1. When it is detected that the soil humidity is lower than the set value, the first submersible pump 19 is controlled to pump water upward to maintain the soil humidity.

[0029] As a preferred embodiment of the utility model, a second submersible pump 21 and a third water level sensor 22 are provided in the water reservoir 3. The third water level sensor 22 is provided in the middle or top of the water reservoir 3. The second submersible pump 21 and the third water level sensor 22 are electrically connected. When the water level exceeds the position of the third water level sensor 22, the second submersible pump 2 starts to drain the excess water so that the water level is always maintained within the set height.

[0030] As a preferred embodiment of the utility model, a planting soil layer 23 and a filter layer 24 are sequentially arranged in the planting pool 1 from top to bottom. The main function of planting plants in the planting soil layer 23 is to reduce pollutants in the water body by physical interception and biological absorption. The filter material below the planting soil filters and adsorbs pollutants in the water that are not absorbed by the plants. The particle size of the filter material layer 24 gradually increases from top to bottom, and the filter material components are mainly ceramsite, volcanic stone, zeolite, etc. of various particle sizes. After the water is filtered by the filter material layer 24, part of it enters the water storage tank below, thereby ensuring the purification effect of the biological retention tank on pollutants. A drainage channel 25 is also provided in the planting pool 1. The drainage channel 25 extends from the top of the planting pool 1 to the bottom of the planting pool 1. A drainage filter material is arranged in the drainage channel 25. The drainage filter material adopts large-particle filtration. When the water flow is large, the water body can be quickly discharged into the water storage tank through this channel.

[0031] The above schematically describes the present invention and its implementation methods, which are not restrictive. The drawings show only one implementation method of the present invention, and the actual structure is not limited thereto. Therefore, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A bioretention structure for river and lake ecological restoration, characterized by: The utility model comprises a planting pool, a sedimentation pool and a water storage pool, wherein the sedimentation pool is arranged on the horizontal side of the planting pool, the water storage pool is arranged at the bottom of the planting pool, a vertical partition and a horizontal filter screen are arranged in the sedimentation pool, the vertical partition and the horizontal filter screen divide the sedimentation pool into a spray chamber, a garbage collection chamber, a spray sedimentation pool and a pre-sedimentation pool, the pre-sedimentation pool is arranged close to the planting pool, the spray sedimentation pool and the pre-sedimentation pool are arranged horizontally at intervals, the spray chamber is arranged directly above the spray sedimentation pool, the garbage collection chamber is arranged directly above the pre-sedimentation pool, and the top of the spray chamber is provided with A downwardly arranged rinse nozzle, a hollow cover plate is provided on the top of the garbage collection chamber, a drain port for connecting the spray sedimentation tank and the pre-sedimentation tank is provided on the vertical partition, the middle part of the horizontal filter is rotatably connected to the sedimentation tank, a notch is provided on the vertical partition to allow the horizontal filter to pass through when rotating, a first revolving door and a second revolving door are provided at the notch, the first revolving door and the second revolving door are respectively located on the upper and lower sides of the horizontal filter and are rotatably connected to the vertical partition, and the free ends of the first revolving door and the second revolving door are arranged close to the horizontal filter.

2. A bioretention structure for river and lake ecological restoration according to claim 1, characterized in that: Both ends of the transverse filter are connected with folding plates, and the folding plates are rotatably connected to the transverse filter.

3. The bioretention structure for river and lake ecological restoration according to claim 1, characterized in that: A sludge pump is provided at the bottom of the pre-sedimentation tank.

4. A bioretention structure for river and lake ecological restoration according to claim 3, characterized in that: A first water level sensor is provided in the middle of the pre-sedimentation tank, and a second water level sensor is provided on the top of the garbage collection chamber. Both the first water level sensor and the second water level sensor are electrically connected to the sludge pump.

5. The bioretention structure for river and lake ecological restoration according to claim 1, characterized in that: A first submersible pump is arranged in the water reservoir, a drainage outlet of the first submersible pump extends to the top of the planting pool, and a humidity sensor electrically connected to the first submersible pump is arranged in the planting pool.

6. A bioretention structure for river and lake ecological restoration according to claim 5, characterized in that: A second submersible pump and a third water level sensor are provided in the water reservoir. The second submersible pump is electrically connected to the third water level sensor. The second submersible pump is used to discharge excess water in the water reservoir.

7. A bioretention structure for river and lake ecological restoration according to any one of claims 1 to 6, characterized in that: A planting soil layer and a filter material layer are sequentially arranged in the planting pool from top to bottom. A drainage channel is also arranged in the planting pool. The drainage channel extends from the top of the planting pool to the bottom of the planting pool. A drainage filter material is arranged in the drainage channel.

8. A bioretention structure for river and lake ecological restoration according to claim 7, characterized in that: The particle size of the filter material in the filter material layer increases gradually from top to bottom.

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