Wetland permeability improving device

Abstract

The utility model discloses a wetland permeability improving device which comprises a coarse sand layer, a gravel layer, a permeable subsoil layer and a protective layer on the outer side which are laid from top to bottom, and a drainage layer is laid between the gravel layer and the permeable subsoil layer. The drainage layer is connected with a supporting structure; a drainage pipe is further laid in the drainage layer; the drainage pipe penetrates through the protective layer and is outwards connected with a water storage tank; the water storage tank is also connected with a water outlet pipe; the other end of the water outlet pipe is connected with an irrigation mechanism; and the irrigation mechanism is arranged at the upper end of the coarse sand layer. According to the utility model, the drainage layer is laid between the gravel layer and the permeable subsoil layer of the wetland for water storage and drainage, and the drained water can be used for irrigating vegetation through the irrigation mechanism and can also be directly drained through the drainage pipe, so that the normal ecological cycle of the wetland is ensured, and meanwhile, a water source is reasonably utilized; and the ecological structure of the wetland is prevented from being damaged by excessive water.

Description

Technical Field

[0001] The utility model relates to the technical field of ecological improvement, in particular to a wetland permeability improvement device. Background Art

[0002] Artificial wetlands have attracted widespread attention due to their low construction cost, good treatment effect, and convenient operation and maintenance. However, existing artificial wetlands filter water through multiple layers of adsorption and infiltration and then infiltrate it into the ground. However, during this process, when encountering heavy rains, the excess water in the wetland is difficult to infiltrate, which easily leads to water accumulation and damages the ecological balance at the top of the wetland. Utility Model Content

[0003] The utility model aims to solve the problems in the prior art and proposes a wetland permeability improvement device.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A wetland permeability improvement device comprises a coarse sand layer, a gravel layer, a permeable subsoil layer and an outer protective layer laid from top to bottom, a drainage layer is laid between the gravel layer and the permeable subsoil layer; a supporting structure is connected to the drainage layer; a drainage pipe is also laid in the drainage layer; the drainage pipe passes through the protective layer and is externally connected to a water storage tank; the water storage tank is also connected to a water outlet pipe; the other end of the water outlet pipe is connected to an irrigation mechanism; the irrigation mechanism is arranged at the upper end of the coarse sand layer.

[0006] Preferably, the irrigation mechanism includes a pipe and a nozzle; the pipe is inserted into the gaps between the vegetation; the nozzle is arranged at the upper end of the pipe and the opening is inclined upward.

[0007] Preferably, a planting layer is also laid on the upper end of the coarse sand layer; and the pipeline is buried in the upper end of the planting layer.

[0008] Preferably, the water outlet pipe is connected to pump 1; the water outlet pipe is connected to pump 2; and both the water outlet pipe and the water outlet pipe are connected to water stop valves; the water outlet pipe is also connected to a drain pipe.

[0009] Preferably, the gravel layer includes a large gravel layer, a medium gravel layer and a small gravel layer from bottom to top; and the thickness of the large gravel layer is greater than the thickness of the small gravel layer.

[0010] Compared with the prior art, the utility model provides a wetland permeability improvement device, which has the following beneficial effects:

[0011] The wetland permeability improvement device stores and drains water by laying a drainage layer between the gravel layer and the permeable bottom soil layer of the wetland. When the water volume is excessive, the water stop valve and the pump can be opened to drain the water in the drainage layer, store the water in the water storage tank, and then discharge the water from the water storage tank through the second pump. The discharged water can be used to irrigate the vegetation through the irrigation mechanism or directly discharged through the drain pipe, avoiding damage to the ecological structure of the wetland when the water volume is too large, and can also be reasonably irrigated when the rainfall is small, while ensuring the normal ecological cycle of the wetland and reasonably using the water source.

[0012] Parts not involved in this device are the same as or can be implemented using existing technologies. The structure of this utility model is simple and the operation is convenient. Description of the Drawings

[0013] Figure 1 is the structural schematic diagram of the present utility model;

[0014] Figure 2 is the side structural schematic diagram of the present utility model.

[0015] In the figure: 1 coarse sand layer, 2 gravel layer, 3 permeable bottom soil layer, 4 protective layer, 5 drainage layer, 51 support structure, 52 drain pipe, 53 water storage tank, 54 outlet pipe, 55 outlet pipe, 56 first pump, 57 second pump, 58 water stop valve, 59 drain pipe, 6 irrigation mechanism, 61 pipeline, 62 sprinkler head, 7 planting layer. Detailed Embodiment

[0016] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0017] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 construed as a limitation to the present utility model.

[0018] Refer to Figure 1-2A wetland permeability improvement device comprises a coarse sand layer 1, a gravel layer 2, a permeable subsoil layer 3 and an outer protective layer 4 laid from top to bottom, a drainage layer 5 is laid between the gravel layer 2 and the permeable subsoil layer 3; a supporting structure 51 is connected to the drainage layer 5; a drainage pipe 52 is also laid in the drainage layer 5; the drainage pipe 52 passes through the protective layer 4 and is externally connected to a water storage tank 53; an outlet pipe 54 is also connected to the water storage tank 53; the other end of the outlet pipe 55 is connected to an irrigation mechanism 6; the irrigation mechanism 6 is arranged at the upper end of the coarse sand layer 1.

[0019] The irrigation mechanism 6 includes a pipe 61 and a nozzle 62; the pipe 61 is inserted into the gaps between the vegetation; the nozzle 62 is arranged at the upper end of the pipe 61 and the opening is inclined upward; a planting layer 7 is also laid on the upper end of the coarse sand layer 1; the pipe 61 is buried in the upper end of the planting layer 7.

[0020] The outlet pipe 54 is connected to a pump 1 56 ; the outlet pipe 55 is connected to a pump 2 57 ; and both the outlet pipes 54 and 55 are connected to a water stop valve 58 ; the outlet pipe 54 is also connected to a drain pipe 59 , and when water is difficult to store, water can be pumped out through an external drainage device via the drain pipe 59 .

[0021] The gravel layer 2 includes a large gravel layer, a medium gravel layer and a small gravel layer from bottom to top; and the thickness of the large gravel layer is greater than that of the small gravel layer, so as to ensure the normal circulation of water.

[0022] An LDPE lining is laid between the drainage layer 5 and the gravel layer 2, the thickness of the permeable subsoil layer 3 is 20-35 cm, and the thickness of the coarse sand layer 1 is 8-16 cm.

[0023] By laying a drainage layer 5 between the gravel layer 2 and the permeable subsoil layer 3 of the wetland, water storage and drainage are carried out. When the water is in excess, the water stop valve 58 and the pump 1 56 can be opened to pump out the water in the drainage layer 5 and store the water in the water storage tank 53. The water is then discharged from the water storage tank 53 through the pump 2 57. The discharged water can be used to irrigate the vegetation through the irrigation mechanism 6 and can also be directly discharged through the drainage pipe 59. The water source is used reasonably while ensuring the normal ecological structure of the wetland.

[0024] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A wetland permeability improvement device, comprising a coarse sand layer (1), a gravel layer (2), a permeable subsoil layer (3) and an outer protective layer (4) laid from top to bottom, characterized in that: A drainage layer (5) is laid between the gravel layer (2) and the permeable subsoil layer (3); a support structure (51) is connected to the drainage layer (5); a drainage pipe (52) is also laid in the drainage layer (5); the drainage pipe (52) passes through the protective layer (4) and is externally connected to a water storage tank (53); a water outlet pipe (54) is also connected to the water storage tank (53); the other end of the water outlet pipe (54) is connected to an irrigation mechanism (6); and the irrigation mechanism (6) is arranged at the upper end of the coarse sand layer (1).

2. A wetland permeability improvement device according to claim 1, characterized in that: The irrigation mechanism (6) comprises a pipe (61) and a nozzle (62); the pipe (61) is inserted into the gaps between the vegetation; the nozzle (62) is arranged at the upper end of the pipe (61) and the opening is inclined upward.

3. A wetland permeability improvement device according to claim 2, characterized in that: A planting layer (7) is also laid on the upper end of the coarse sand layer (1); and the pipeline (61) is buried in the upper end of the planting layer (7).

4. A wetland permeability improvement device according to claim 1, characterized in that: The gravel layer (2) comprises, from bottom to top, a large gravel layer, a medium gravel layer and a small gravel layer; and the thickness of the large gravel layer is greater than the thickness of the small gravel layer.

Images