CN219526408U

CN219526408U - Horizontal subsurface flow wetland with buffering blocking effect

Info

Publication number: CN219526408U
Application number: CN202320673645.6U
Authority: CN
Inventors: 孔祥文; 周子豪; 蔡意; 张旺南; 张涛; 王奥迪
Original assignee: Csd Water Service Co ltd; Yangtze Ecology and Environment Co Ltd
Current assignee: Csd Water Service Co ltd; Yangtze Ecology and Environment Co Ltd
Priority date: 2023-03-30
Filing date: 2023-03-30
Publication date: 2023-08-15
Anticipated expiration: 2033-03-30

Abstract

The utility model provides a horizontal undercurrent wetland with buffering jam effect, including the wetland cell body, the wetland cell body intussuseption is filled with the wetland filler, the topography of wetland cell body bottom is the slope form that is higher than the water outlet end in the water inlet end of wetland cell body, the water distribution canal sets up in wetland cell body water inlet end one side, the lateral wall of water distribution canal is equipped with water conservancy diversion hole and wetland cell body intercommunication, the water collecting canal sets up in wetland cell body water outlet end one side, the water outlet end one side of wetland cell body still is equipped with the wetland pump well, the water outlet end of wetland cell body is switched on with the wetland pump well, install the sewage pump in the wetland pump well, the bottom in the wetland cell body is equipped with the back flush pipe. The wetland system has simple structure and lower manufacturing cost, is suitable for large-scale application, and the top planting layer of the wetland filler can not be immersed in water, so that plants can be planted in a variety, the bottom structure of the wetland tank body can effectively relieve the filler cleaning and flushing period of the medium-small horizontal subsurface flow wetland, and the disposable service life of the wetland filler is prolonged.

Description

Horizontal subsurface flow wetland with buffering blocking effect

Technical Field

The utility model relates to the technical field of horizontal subsurface flow constructed wetlands, in particular to a horizontal subsurface flow constructed wetland with a buffering and blocking effect.

Background

At present, environmental problems are becoming more and more popular, traditional sewage treatment modes are generally accompanied by the construction of a large number of concrete structures and other structures, the beneficiaries of sewage treatment are limited by the knowledge of sewage treatment, and the sewage treatment sites with great significance and clear boundaries are often confusing to emotion and prejudice, so that the construction of small and medium-sized sewage treatment facilities is hindered. The ecological sewage purification treatment mode of constructed wetland construction can be easily accepted by people, so that the ecological sewage purification treatment mode based on the constructed wetland water quality upgrading purification mode is more and more widely applied.

Although CN206680262U discloses an anti-blocking constructed wetland system, the structure of the system is complex, the cost of the multi-layer structure of the tank body is high, and the system is inconvenient for large-area application. In addition, the water flow enters the packing layer through the gravel layer, then flows into the water collecting channel of the water outlet from the overflow triangular weir, and then flows into the receiving water body through the water outlet pipe discharging system, and the packing surface layer is immersed in water, so that the water-loving plants can be planted, and the diversity of the plants is insufficient. In addition, the system is not provided with a back flushing structure, and when the system is used, the gravel layer and the filler layer are easy to be blocked, and the filler is required to be replaced after the gravel layer and the filler layer are blocked.

Disclosure of Invention

The utility model aims to solve the technical problems that: the horizontal subsurface flow wetland system is simple in structure, low in manufacturing cost and suitable for large-scale application, the top planting layer of the wetland filler can not be immersed in water, plants can be planted in a variety, the filling material cleaning and flushing period of the small and medium horizontal subsurface flow wetland can be effectively relieved through the bottom structure of the wetland tank body, and the disposable service life of the wetland filler is prolonged.

In order to achieve the technical characteristics, the aim of the utility model is realized in the following way: the utility model provides a horizontal undercurrent wetland with buffering jam effect, including the wetland cell body, the wetland cell body intussuseption is filled with the wetland filler, the topography of wetland cell body bottom is the slope form that is higher than the water outlet end in the water inlet end, the water distribution canal sets up in wetland cell body water inlet end one side, the lateral wall of water distribution canal is equipped with water conservancy diversion hole and wetland cell body intercommunication, the water catch canal sets up in wetland cell body water outlet end one side, the water outlet end one side of wetland cell body still is equipped with the wetland pump well, the bottom of wetland pump well is less than the bottom of wetland cell body water outlet end one side, install the sewage pump in the wetland pump well, the delivery port of sewage pump lets in the water catch canal, the bottom in the wetland cell body is equipped with the backwash pipe, the mouth of pipe of backwash pipe stretches into in the wetland pump well from the water outlet end of wetland cell body.

The wet land filler comprises a coarse wet land filler positioned at the inner bottom of the wet land tank body and a fine wet land filler filled above the coarse wet land filler, and the diversion hole is positioned in the height of the coarse wet land filler.

The bottom of the wetland tank body is also provided with a ridge part and a groove part, the ridge part and the groove part are distributed in a sector shape around the wetland pump well, the downstream water outlet end of the groove part is communicated with the wetland pump well, and the backwash pipe is distributed along the groove part.

And a lifting device for fixing and lifting the submersible sewage pump is arranged in the wetland pump well.

The wetland pump well is also provided with a liquid level meter which is used for controlling the start and stop of the submersible sewage pump.

The utility model has the following beneficial effects:

1. sewage in the water distribution channel enters the wetland filler of the wetland tank body through the flow guide holes, is filtered by the wetland filler, is collected into the wetland pump well from the back flushing pipe, is discharged into the water collecting channel through the submersible sewage pump, and has the dual functions of forward water collection and reverse flushing. The wetland system has simple structure and lower manufacturing cost, is suitable for large-scale application, and the top planting layer of the wetland filler can not be immersed in water, so that plants can be planted in a variety, the bottom structure of the wetland tank body can effectively relieve the filler cleaning and flushing period of the medium-small horizontal subsurface flow wetland, and the disposable service life of the wetland filler is prolonged.

2. The bottom of the wetland tank body is provided with the ridge and the groove, the micro-topography structure enables the bottom of the wetland tank body to form a height difference, water flow is convenient to pass through, and the backwash pipes are arranged along the groove, so that water is convenient to collect. During the reverse flushing, the orifice of the back flushing pipe is connected with the outer connecting pipe, and the back flushing is carried out by connecting an air pump or a water pump with the outer connecting pipe.

Drawings

FIG. 1 is a schematic view showing a cross-sectional structure of an embodiment of the present utility model.

Fig. 2 is a schematic view of the bottom structure of the wetland tank body according to the present utility model.

FIG. 3 is a schematic illustration of the arrangement of backwash pipes of the present utility model.

In the figure: the wet land pool comprises a wet land pool body 1, a water distribution channel 2, a diversion hole 21, a water collecting channel 3, a submersible sewage pump 4, a pipe orifice 5, an outer connecting pipe 7, a water outlet 8, coarse wet land filling 9, fine wet land filling 10, a lifting device 11, a wet land pump well 12, a backwashing pipe 13, a liquid level meter 14, a ridge 15 and a groove 16.

Detailed Description

Embodiments of the present utility model will be further described with reference to the accompanying drawings.

Referring to fig. 1-3, a horizontal subsurface flow wetland with buffer blocking effect comprises a wetland tank body 1, wetland filler is filled in the wetland tank body 1, the ground at the bottom of the wetland tank body 1 is inclined, the water distribution channel 2 is arranged on one side of the water inlet end of the wetland tank body 1, the side wall of the water distribution channel 2 is provided with a diversion hole 21 communicated with the wetland tank body 1, the water collecting channel 3 is arranged on one side of the water outlet end of the wetland tank body 1, one side of the water outlet end of the wetland tank body 1 is also provided with a wetland pump well 12, the bottom of the wetland pump well 12 is lower than the bottom of one side of the water outlet end of the wetland tank body 1, a sewage pump 4 is arranged in the wetland pump well 12, a water outlet 8 of the sewage pump 4 is led into the water collecting channel 3, the bottom in the wetland tank body 1 is provided with a backwash pipe 13, and a pipe orifice 5 of the backwash pipe 13 extends into the wetland pump well 12 from the water outlet end of the wetland tank body 1. Sewage in the water distribution channel 2 enters the wetland filler of the wetland tank body 1 through the diversion holes 21, is filtered by the wetland filler, is collected into the wetland pump well 12 from the back flushing pipe 13, is discharged into the water collecting channel 3 through the submersible sewage pump 4, and the back flushing pipe 13 has the double functions of forward water collection and reverse flushing. The wetland system has simple structure and lower manufacturing cost, is suitable for large-scale application, and the top planting layer of the wetland filler can not be immersed in water, so that plants can be planted in a variety, the bottom structure of the wetland tank body can effectively relieve the filler cleaning and flushing period of the medium-small horizontal subsurface flow wetland, and the disposable service life of the wetland filler is prolonged.

Specifically, referring to fig. 1, the wetland filler includes a coarse wetland filler 9 located at the bottom in the wetland tank 1 and a fine wetland filler 10 filled above the coarse wetland filler 9, and the deflector hole 21 is located within the height of the coarse wetland filler 9. Coarse wetland packing 9 is provided for filtration, fine wetland packing 10 is provided for adsorbing pollutants, and plant cultivation is facilitated.

Specifically, the coarse wetland filler 9 is generally crushed stone with the particle size of 3-5cm, and the fine wetland filler 10 is ceramsite with the particle size of 6-10 mm.

Referring to fig. 2, the bottom of the wetland tank body 1 is further provided with a ridge 15 and a groove 16, the ridge 15 and the groove 16 are distributed in a fan shape around the wetland pump well 12, the downstream water outlet end of the groove 16 is communicated with the wetland pump well 12, and the backwash pipes 13 are distributed along the groove 16. The micro-topography structure enables the bottom of the wetland tank body 1 to form a height difference, so that water can flow through conveniently, and the backwash pipes 13 are distributed along the groove parts 16, so that water can be collected conveniently. During the reverse flushing, the pipe orifice 5 of the back flushing pipe 13 is connected with the outer connecting pipe 7, and back flushing is carried out by connecting an air pump or a water pump with the outer connecting pipe 7.

Specifically, the back flushing pipe is composed of UPVC or PE pipe, and the part at the bottom of the wetland adopts perforation design.

Referring to fig. 1, a lifting device 11 for fixing and lifting the submersible sewage pump 4 is arranged inside the wetland pump well 12. The lifting device 11 is arranged to facilitate fixing the position of the submersible sewage pump 4, prevent the submersible sewage pump 4 from overturning and facilitate taking out the submersible sewage pump 4. Preferably, the lifting device 11 may employ a submersible pump coupling and lifting device disclosed in CN 212003635U.

The wetland pump well 12 is also provided with a liquid level meter 14, and the liquid level meter 14 is used for controlling the start and stop of the submersible sewage pump 4. The liquid level meter 14 is arranged to control the start and stop of the submersible sewage pump 4. Specifically, the liquid level meter 14 is a floating ball liquid level meter, the liquid level meter 14 is connected with a matched controller, and the controller controls the submersible sewage pump 4 to start and stop.

The working process or principle of the utility model:

the construction operation flow of the horizontal subsurface flow wetland is as follows:

1. firstly, the liquid level in the wetland tank body 1 is reduced by the wetland pump well 12;

2. because the structure of the bottom of the wetland tank body 1 enables liquid in the wetland to be well converged to the position of the wetland pump well 12, the wetland pump well 12 can well drain the whole wetland;

3. the air pump or the water pump for back flushing is connected through the reserved outer connecting pipe 7 for back flushing;

4. if the water is washed, the wetland pump well 12 discharges the back-washed liquid through the submersible sewage pump 4, so that the trafficability of the wetland is effectively improved.

Claims

1. The utility model provides a horizontal undercurrent wetland with buffering jam effect, including wetland cell body (1), its characterized in that, wetland cell body (1) intussuseption is filled with the wetland filler, the topography of wetland cell body (1) bottom is the slope form that the water inlet end is higher than the water outlet end, water distribution canal (2) set up in wetland cell body (1) water inlet end one side, the lateral wall of water distribution canal (2) is equipped with water conservancy diversion hole (21) and wetland cell body (1) intercommunication, water collecting canal (3) set up in wetland cell body (1) water outlet end one side, the water outlet end one side of wetland cell body (1) still is equipped with wetland pump well (12), the bottom of wetland pump well (12) is less than the bottom of wetland cell body (1) water outlet end one side, install in wetland pump well (4), water outlet (8) of submersible pump (4) lets in canal (3), the bottom in wetland cell body (1) is equipped with backwash pipe (13), backwash pipe (13) stretch into wetland pump well (12) from the mouth of pipe (5) of wetland cell body (1).

2. A horizontal subsurface flow wetland with buffer plugging effect according to claim 1, wherein: the wet land filler comprises a coarse wet land filler (9) positioned at the inner bottom of the wet land tank body (1) and a fine wet land filler (10) filled above the coarse wet land filler (9), and the diversion holes (21) are positioned in the height of the coarse wet land filler (9).

3. A horizontal subsurface flow wetland with buffer plugging effect according to claim 1, wherein: the bottom of the wetland tank body (1) is also provided with a ridge (15) and a groove (16), the ridge (15) and the groove (16) are distributed in a fan shape around the wetland pump well (12), the downstream water outlet end of the groove (16) is communicated with the wetland pump well (12), and the backwash pipe (13) is arranged along the groove (16).

4. A horizontal subsurface flow wetland with buffer plugging effect according to claim 1, wherein: and a lifting device (11) for fixing and lifting the submersible sewage pump (4) is arranged in the wetland pump well (12).

5. A horizontal subsurface flow wetland with buffer plugging effect according to claim 1, wherein: the wetland pump well (12) is also provided with a liquid level meter (14), and the liquid level meter (14) is used for controlling the start and stop of the submersible sewage pump (4).