Artificial wetland in cold region

Abstract

The utility model relates to the technical field of constructed wetlands, in particular to a constructed wetland in a cold region, which comprises a constructed wetland outer wall, a water delivery main pipe for delivering water to the interior of the constructed wetland is arranged outside the constructed wetland outer wall, and a shunt pipe is mounted at a water outlet of the water delivery main pipe. An upper water inlet pipe and a lower water inlet pipe are installed at water outlets in the two ends of the flow dividing pipe, a collecting assembly is arranged on the portion, located in the constructed wetland outer wall, of the lower water inlet pipe, a water outlet main pipe is installed at a water outlet of the lower water inlet pipe, and a weir plate for isolating wetland substrates is fixedly installed on the inner wall of the constructed wetland outer wall. And a water outlet assembly is arranged in the weir plate. According to the embodiment, the lower water inlet pipe is connected with the upper water inlet pipe through the shunt pipe connected with the water conveying main pipe, and different switch valves are opened and closed, so that different water conveying pipelines are used in winter and summer to carry out water source irrigation on the constructed wetland.

Description

Technical Field

[0001] The utility model relates to the technical field of constructed wetlands, and more specifically to a constructed wetland in cold regions. Background Art

[0002] A constructed wetland is to build a pool or trench artificially, lay an anti-seepage and water-proof layer on the bottom surface, fill a substrate layer with a certain depth, plant aquatic plants, and use the triple synergistic effects of the substrate, plants, and microorganisms to purify sewage. According to the flow mode of sewage, it is divided into surface flow constructed wetlands, horizontal subsurface flow constructed wetlands, and vertical subsurface flow constructed wetlands.

[0003] In the existing constructed wetland, water is sent to the water delivery pipe at the top of the wetland substrate. Through the water outlet holes opened on the outer side of the pipe, the water flows downward through the substrate, flows to the bottom of the pool, and then the water source is collected through the branch pipes at the bottom of the pool and flows into the water outlet pipe to flow out of the constructed wetland, thus completing an inlet and outlet operation cycle of the constructed wetland. However, in some cold regions such as Xinjiang, the cold freezing period is 4 - 6 months in a year. The water source flowing out of the water delivery pipe will be frozen on the surface layer of the wetland substrate and cannot flow downward. The existing water delivery process of the constructed wetland cannot be realized in cold regions, so a water delivery structure for a constructed wetland that can be built in cold regions is needed.

[0004] In view of this, the utility model provides a constructed wetland in cold regions. Summary of the Invention

[0005] The purpose of the utility model is to solve the above-mentioned drawbacks and provide a water delivery structure for a constructed wetland that can be built in cold regions.

[0006] A shunt pipe connected by a water delivery main pipe is used to connect the lower water inlet pipe and the upper water inlet pipe, and then different switching valves are used to make different water delivery pipes be used in winter and summer to irrigate the water source of the constructed wetland.

[0007] Therefore, the utility model provides a constructed wetland in cold regions, including an outer wall of the constructed wetland. Inside the outer wall of the constructed wetland, there is a wetland substrate for planting plants. At the bottom of the inner wall of the outer wall of the constructed wetland, there is an anti-seepage bottom plate to prevent the water source from seeping out. Outside the outer wall of the constructed wetland, there is a water delivery main pipe for delivering water inside the constructed wetland. At the water outlet of the water delivery main pipe, a shunt pipe is installed. At the two ends of the water outlet of the shunt pipe, an upper water inlet pipe and a lower water inlet pipe are installed. A collection component is arranged on the part of the lower water inlet pipe located inside the outer wall of the constructed wetland. At the water outlet of the lower water inlet pipe, a water outlet main pipe is installed. An overflow weir plate for isolating the wetland substrate is fixedly installed on the inner wall of the outer wall of the constructed wetland, and a water outlet component is arranged inside the overflow weir plate.

[0008] As a further improvement of the technical solution, a first inlet switch valve for controlling the conveyed water source is installed on the outer surface of the upper inlet pipe close to the water conveyance main pipe, and a second inlet switch valve is installed on the outer surface of the lower inlet pipe close to the water conveyance main pipe.

[0009] As a further improvement of the technical solution, a first outlet switch valve is installed on the outer surface of one end of the lower inlet pipe close to the water outlet main pipe.

[0010] As a further improvement of the technical solution, the collection assembly includes a leakage opening formed on the outer surface of the lower inlet pipe. A filter plate for filtering the water source flowing into the interior of the lower inlet pipe is installed on the inner wall of the leakage opening, and a water collection trough for collecting and conveying the water source flowing down from the wetland substrate is installed on the outer surface of the leakage opening.

[0011] As a further improvement of the technical solution, the water outlet assembly includes a water outlet channel installed between the weir plate and the outer wall of the constructed wetland. A water outlet groove is formed on one side of the water outlet channel close to the inner wall of the outer wall of the constructed wetland. A water outlet branch pipe for discharging the water source collected in the water outlet channel is installed inside the water outlet groove. A second water outlet switch valve is installed on the outer surface of the water outlet branch pipe close to one side of the outer wall of the constructed wetland.

[0012] As a further improvement of the technical solution, the water outlet of the water outlet branch pipe is installed inside the water outlet main pipe to discharge the water source flowing out of the water outlet channel.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. In this constructed wetland in cold regions, when conveying water to the constructed wetland in cold winter weather, the water conveyance main pipe conveys the water source to the shunt pipe. At this time, the first inlet switch valve of the upper inlet pipe and the first outlet switch valve of the lower inlet pipe are closed, and the water source enters the lower inlet pipe and flows out through the leakage opening formed on the outer surface of the lower inlet pipe to fill the wetland substrate inside the outer wall of the constructed wetland. The water source is filled from bottom to top. When it is full, the water source flows over the weir plate and into the water outlet channel, and flows into the water outlet main pipe through the water outlet branch pipe connected to the water outlet channel and then flows out, forming a cycle. In cold weather, the temperature of sewage is higher than that of clean water. The water source conveyed in cold winter weather is conveyed from the bottom to the top of the wetland substrate, and the water source will become sewage mixed with mud, and the water source will not freeze. Using the characteristics of sewage, the water source can complete the cycle from bottom to top. Even in extremely cold weather, when the water source flowing out of the surface of the wetland substrate shows a phenomenon of surface icing, the upward flow of water will have a jacking effect, and the water can also flow smoothly into the water outlet channel inside the weir plate.

[0015] 2. In this artificial wetland in cold regions, when the weather is not cold in summer, the main water supply pipe conveys water to the shunt pipe. At this time, the inlet switch valve II of the lower inlet pipe and the outlet switch valve II of the outlet branch pipe are closed. The water source is conveyed into the upper inlet pipe, and the water source flows out through the water outlet holes opened on the outer surface of the upper inlet pipe. The water source irrigates the wetland substrate from top to bottom. The water source falls from the bottom of the wetland substrate onto the anti-seepage floor slab, and the water source flows into the lower inlet pipe through the leak holes opened on the outer surface of the lower inlet pipe. The filter plate installed in the leak holes can filter the soil, and the collection tank can convey the water source faster, so that the water source flows out from the outlet main pipe connected to one end of the lower inlet pipe, achieving the effect of irrigating the artificial wetland in summer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Next, with reference to the drawings, the present utility model will be described in more detail by way of example. In the drawings:

[0017] Figure 1 is a three-dimensional schematic diagram of the present utility model;

[0018] Figure 2 is a sectional schematic diagram of the present utility model;

[0019] Figure 3 is an enlarged schematic diagram at position A of the present utility model;

[0020] Figure 4 is a three-dimensional schematic diagram of the main conveying pipe of the present utility model.

[0021] The meanings of the various reference numerals in the drawings are as follows:

[0022] 1. Outer wall of artificial wetland; 2. Wetland substrate; 3. Main water supply pipe; 31. Shunt pipe; 32. Upper inlet pipe; 302. Inlet switch valve I; 33. Lower inlet pipe; 303. Inlet switch valve II; 3031. Outlet switch valve I; 4. Collection assembly; 401. Filter plate; 402. Collection tank; 5. Outlet main pipe; 6. Weir plate; 7. Outlet assembly; 701. Outlet channel; 702. Outlet tank; 703. Outlet branch pipe; 704. Outlet switch valve II. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] In the existing artificial wetland, the water source is sent to the water conveying pipe at the top of the wetland substrate. Through the water outlet holes opened on the outer side of the pipe, the water flows through the substrate from top to bottom, flows to the bottom of the pool, and then the water source is collected through the branch pipe at the bottom of the pool and flows into the outlet pipe to flow out of the artificial wetland, thus completing an inlet and outlet operation cycle of the artificial wetland. However, in some cold regions such as Xinjiang, the cold freezing period lasts for 4 - 6 months in a year. The water source flowing out of the water conveying pipe will be frozen on the surface of the wetland substrate and cannot flow downward. The existing water conveying process of the artificial wetland cannot be realized in cold regions, so an artificial wetland water conveying structure that can be built in cold regions is needed.

[0024] As Figures 1 - 3 shown, the device includes an artificial wetland outer wall 1. Inside the artificial wetland outer wall 1, there is a wetland substrate 2 for plant cultivation. At the bottom of the inner wall of the artificial wetland outer wall 1, there is an anti-seepage bottom plate to prevent water source from seeping out. Outside the artificial wetland outer wall 1, there is a water supply main pipe 3 for supplying water to the inside of the artificial wetland. At the water outlet of the water supply main pipe 3, a shunt pipe 31 is installed. At the two ends of the water outlet of the shunt pipe 31, an upper inlet pipe 32 and a lower inlet pipe 33 are installed. A collection component 4 is arranged at the part of the lower inlet pipe 33 inside the artificial wetland outer wall 1. At the water outlet of the lower inlet pipe 33, a water outlet main pipe 5 is installed. A weir plate 6 for isolating the wetland substrate 2 is fixedly installed on the inner wall of the artificial wetland outer wall 1. Inside the weir plate 6, there is a water outlet component 7.

[0025] The shunt pipe 31 connected through the water supply main pipe 3 connects the lower inlet pipe 33 and the upper inlet pipe 32. Then, by switching different on-off valves, different water supply pipes are used in winter and summer to irrigate the artificial wetland with water source.

[0026] First, the specific structure of the collection component 4 is disclosed. The collection component 4 includes a leak opening formed on the outer surface of the lower inlet pipe 33. Inside the wall of the leak opening, a filter plate 401 for filtering the water source flowing into the inside of the lower inlet pipe 33 is installed. On the outer surface of the leak opening, a water collecting tank 402 for collecting and conveying the water source flowing down from the wetland substrate 2 is installed.

[0027] On the outer surface of the upper inlet pipe 32 close to the water supply main pipe 3, a first water inlet on-off valve 302 for controlling the water supply is installed. On the outer surface of the lower inlet pipe 33 close to the water supply main pipe 3, a second water inlet on-off valve 303 is installed. On the outer surface of one end of the lower inlet pipe 33 close to the water outlet main pipe 5, a first water outlet on-off valve 3031 is installed.

[0028] When watering the artificial wetland in cold winter weather, the water source is fed into the water supply main pipe 3 and then conveyed to the shunt pipe 31. At this time, the first water inlet on-off valve 302 of the upper inlet pipe 32 and the first water outlet on-off valve 3031 of the lower inlet pipe 33 are closed. The water source flows into the lower inlet pipe 33 and flows out through the leak opening formed on the outer surface of the lower inlet pipe 33 to fill the wetland substrate 2 inside the artificial wetland outer wall 1 with water source. The water source is filled from bottom to top. When it is full, the water source flows over the weir plate 6 and into the water outlet channel 701, and then flows into the water outlet main pipe 5 through the water outlet branch pipe 703 connected to the water outlet channel 701 to form a cycle. In cold weather, the temperature of sewage is higher than that of clean water. The water source conveyed in cold winter weather is conveyed from the bottom to the top of the wetland substrate 2, and the water source will become sewage mixed with mud, and the water source will not freeze. Using the characteristics of sewage, the water source is circulated from bottom to top. Even in extremely cold weather, when the water source flowing out from the surface of the wetland substrate 2 shows a surface icing phenomenon, the upward flow of water will have a jacking effect, and the water can also flow smoothly into the water outlet channel 701 inside the weir plate 6.

[0029] When the weather is not cold in summer, the main water supply pipe 3 conveys water from the water source to the shunt pipe 31. At this time, the inlet switch valve II 303 of the lower inlet pipe 33 and the outlet switch valve II 704 of the outlet branch pipe 703 are closed. The water source is conveyed into the upper inlet pipe 32, and the water source flows out through the water outlet holes opened on the outer surface of the upper inlet pipe 32. The water source irrigates the wetland substrate 2 from top to bottom. The water source falls from the bottom of the wetland substrate 2 onto the anti-seepage bottom plate, and the water source flows into the lower inlet pipe 33 through the leak holes opened on the outer surface of the lower inlet pipe 33. The filter plate 401 installed in the leak holes can filter the soil, and the collection tank 402 can convey the water source faster, so that the water source flows out from the outlet main pipe 5 connected to one end of the lower inlet pipe 33, achieving the effect of irrigating the artificial wetland in summer.

[0030] The improvement of this embodiment lies in that: through the structures of the upper inlet pipe 32 and the lower inlet pipe 33, the characteristics of using higher sewage temperature are realized, and the effect of using different water pipes to convey water sources in summer and winter is achieved, solving the problem that artificial wetlands cannot be built in cold regions in the prior art.

[0031] Due to the problem of how the water source flows out from bottom to top in the prior art in winter, therefore, Figure 4 The second embodiment of the present utility model is shown.

[0032] According to the above disclosure of the specific structure of the water outlet assembly 7, the water outlet assembly 7 includes a water outlet channel 701 installed between the weir plate 6 and the inner wall of the artificial wetland outer wall 1. A water outlet groove 702 is opened on one side of the water outlet channel 701 close to the inner wall of the artificial wetland outer wall 1. An outlet branch pipe 703 for collecting the water source flowing out in the water outlet channel 701 is installed inside the water outlet groove 702. An outlet switch valve II 704 is installed on the outer surface of the outlet branch pipe 703 close to the artificial wetland outer wall 1.

[0033] The water outlet of the outlet branch pipe 703 is installed inside the outlet main pipe 5 to discharge the water source flowing out of the water outlet channel 701.

[0034] By installing a weir plate 6 shorter than the artificial wetland outer wall 1 on the inner wall of the artificial wetland outer wall 1, the water source flowing from bottom to top can flow into the water outlet channel 701 inside the weir plate 6, and the water source is discharged through the outlet branch pipe 703 connected to the water outlet channel 701.

[0035] To sum up, the working principle of this solution is as follows:

[0036] When water is conveyed to the constructed wetland in cold winter weather, the main water conveyance pipe 3 conveys the water source to the shunt pipe 31. At this time, the inlet switch valve 302 of the upper inlet pipe 32 and the outlet switch valve 3031 of the lower inlet pipe 33 are closed, and the water source enters the lower inlet pipe 33 and flows out through the leakage openings formed on the outer surface of the lower inlet pipe 33 to fill the wetland substrate 2 inside the outer wall 1 of the constructed wetland with water. The water is filled from bottom to top. When it is full, the water source flows over the weir plate 6 and into the outlet channel 701, and then flows into the main outlet pipe 5 through the outlet branch pipe 703 connected to the outlet channel 701 to form a cycle. In cold weather, the temperature of sewage is higher than that of purified water. The water source conveyed in cold winter weather is conveyed from the bottom to the top of the wetland substrate 2, and the water source will become sewage mixed with soil, and the water source will not freeze. Using the characteristics of sewage, the water source can complete the cycle from bottom to top. Even in extremely cold weather, when the water source flowing out of the surface of the wetland substrate 2 shows a surface icing phenomenon, the upward flow of water will have a jacking effect, and the water can also flow smoothly into the outlet channel 701 of the weir plate 6;

[0037] When the weather is not cold in summer, the main water conveyance pipe 3 conveys the water source to the shunt pipe 31. At this time, the inlet switch valve 303 of the lower inlet pipe 33 and the outlet switch valve 704 of the outlet branch pipe 703 are closed, and the water source is conveyed into the upper inlet pipe 32. The water source flows out through the water outlet holes formed on the outer surface of the upper inlet pipe 32, and the water source irrigates the wetland substrate 2 from top to bottom. The water source falls from the bottom of the wetland substrate 2 onto the anti-seepage floor slab, and the water source flows in through the leakage openings formed on the outer surface of the lower inlet pipe 33. The filter plate 401 installed in the leakage openings can filter the soil, and the collection tank 402 can convey the water source faster, so that the water source flows out from the main outlet pipe 5 connected to one end of the lower inlet pipe 33, achieving the effect of irrigating the constructed wetland in summer.

[0038] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. An artificial wetland in cold regions, comprising an artificial wetland outer wall (1), characterized in that: A wetland matrix (2) for planting plants is arranged inside the artificial wetland outer wall (1), an anti-seepage bottom plate for preventing water from seeping out is arranged at the bottom of the inner wall of the artificial wetland outer wall (1), a water supply main pipe (3) for supplying water to the artificial wetland is arranged outside the artificial wetland outer wall (1), a diversion pipe (31) is installed at the water outlet of the water supply main pipe (3), an upper water inlet pipe (32) and a lower water inlet pipe (33) are installed at the water outlets at both ends of the diversion pipe (31), a collecting component (4) is arranged at the part of the lower water inlet pipe (33) located inside the artificial wetland outer wall (1), and a water outlet main pipe (5) is installed at the water outlet of the lower water inlet pipe (33), a weir plate (6) for isolating the wetland matrix (2) is fixedly installed on the inner wall of the artificial wetland outer wall (1), and a water outlet component (7) is arranged inside the weir plate (6).

2. The artificial wetland for cold regions according to claim 1, characterized in that: A first water inlet switch valve (302) for controlling the water source is installed on the outer surface of the upper water inlet pipe (32) close to the water supply main pipe (3), and a second water inlet switch valve (303) is installed on the outer surface of the lower water inlet pipe (33) close to the water supply main pipe (3).

3. The artificial wetland for cold regions according to claim 1, characterized in that: A water outlet switch valve 1 (3031) is installed on the outer surface of one end of the lower water inlet pipe (33) close to the water outlet main pipe (5).

4. The artificial wetland for cold regions according to claim 1, characterized in that: The collecting component (4) comprises a leak opening formed on the outer surface of the lower water inlet pipe (33); a filter plate (401) for filtering water flowing into the lower water inlet pipe (33) is installed on the inner wall of the leak opening; and a water collecting trough (402) for collecting and transporting water flowing down from the wetland matrix (2) is installed on the outer surface of the leak opening.

5. The artificial wetland for cold regions according to claim 1, characterized in that: The water outlet assembly (7) comprises a water outlet channel (701) installed between the weir plate (6) and the outer wall (1) of the artificial wetland, a water outlet trough (702) is provided on a side of the water outlet channel (701) close to the inner wall of the outer wall (1) of the artificial wetland, a water outlet branch pipe (703) is installed inside the water outlet trough (702) for collecting water flowing out of the water outlet channel (701), and a water outlet switch valve 2 (704) is installed on the outer surface of the water outlet branch pipe (703) on a side close to the outer wall (1) of the artificial wetland.

6. The artificial wetland for cold regions according to claim 5, characterized in that: The water outlet of the water outlet branch pipe (703) is installed inside the water outlet main pipe (5) to discharge the water source flowing out of the water outlet channel (701).

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