Water distribution device for constructed wetlands

Abstract

The utility model discloses a kind of artificial wetland water distribution devices, it includes inlet pipe, with the water distribution main pipe of inlet pipe through pipeline conduction, wherein the inlet pipe is provided with inlet valve, it is characterized by: the water distribution main pipe is provided with vertical water distribution branch pipe with water distribution main pipe vertical and pipeline conduction, vertical water distribution branch pipe top end is closed and pipe wall four quarters different height is provided with horizontally opened water distribution pinhole, the water distribution main pipe is also connected with the pipeline conduction of emptying pipe, emptying pipe is provided with emptying valve.

Description

Technical Field

[0001] This utility model relates to a rural domestic greywater treatment device, and more particularly to an artificial wetland water distribution device. Background Technology

[0002] Rural greywater refers to domestic sewage in rural areas other than toilet wastewater, specifically including bathing wastewater, washing wastewater, laundry wastewater, and kitchen wastewater generated by farmers in their daily lives. Generally, rural greywater has low concentrations of organic matter and ammonia nitrogen, but contains some impurities such as sand and food residue.

[0003] Grey water treatment processes are complex and diverse, primarily employing biological and ecological methods. Ecological methods offer advantages such as low cost, convenient operation and maintenance, and low energy consumption, gradually becoming the mainstream technology for rural domestic grey water treatment. When grey water is used for farmland irrigation or landscaping, the effluent quality only needs to meet the requirements of the "Farmland Irrigation Water Quality Standard" (GB5084-2021), without the need for advanced treatment. Constructed wetlands are a commonly used process within ecological methods. They remove suspended solids, organic matter, nitrogen, phosphorus, and other pollutants from grey water through adsorption and filtration by soil and filter media, microbial metabolism, and absorption by wetland plants. Constructed wetlands are characterized by mimicking the structure and function of natural wetlands. They are artificially constructed ecological treatment projects that purify water through the combined action of plants, filter media, and microorganisms. Constructed wetlands possess a vast surface area, and their stable chemical composition, numerous attached plant roots, and their metabolic products (oxygen, bioactive substances) provide excellent conditions for pollutant filtration, physical and chemical adsorption, chemical decomposition and precipitation, biological uptake, and oxidative decomposition and mineralization. The impermeable system, water collection and distribution system, substrate, and wetland plants are important components of constructed wetlands, among which the water distribution system affects the uniformity of water intake. Existing water distribution systems generally use distribution pipes with distribution holes for water distribution. These pipes are evenly distributed at the bottom of the constructed wetland substrate, with the distribution holes typically arranged at a 45° downward angle in a staggered pattern. The substrate around the distribution holes uses substrate with a larger particle size than the diameter of the distribution holes in the perforated pipe. Existing water distribution devices, i.e., the distribution pipes, are prone to clogging due to the following factors: 1. Pre-treated water can introduce particulate matter, which accumulates inside the distribution pipe, clogging the distribution holes and making drainage difficult; 2. The substrate containing fine particles can also enter the distribution holes from the outside, causing blockage over time. Utility Model Content

[0004] In order to solve the above-mentioned problems of the prior art, the present invention provides an anti-clogging artificial wetland water distribution device, which will be advantageous.

[0005] To achieve the above objectives, this utility model provides an artificial wetland water distribution device, which includes an inlet pipe and a main water distribution pipe connected to the inlet pipe via a pipeline. The inlet pipe is equipped with an inlet valve. The device is characterized in that: the main water distribution pipe is equipped with a vertical water distribution branch pipe that is perpendicular to the main water distribution pipe and connected to it via a pipeline. The top of the vertical water distribution branch pipe is closed and horizontally opened water distribution holes are provided at different heights around the pipe wall. The main water distribution pipe is also connected to a drain pipe that is connected to the pipeline, and the drain pipe is equipped with a drain valve.

[0006] A further technical feature of this utility model is: The main water distribution pipe is also equipped with a vent pipe that is perpendicular to the main water distribution pipe and is connected to the pipeline, with an opening at the top of the vent pipe.

[0007] The beneficial effects of this utility model are: Because the main water distribution pipe is equipped with vertical water distribution branch pipes that are perpendicular to and interconnected with the main water distribution pipe, and the top of the vertical water distribution branch pipe is closed while horizontally opened water distribution holes are set at different heights around the pipe wall, the diameter of the water distribution holes is smaller than that of the surrounding substrate, when the greywater enters the water distribution device, the greywater first fills the main water distribution pipe. As the water volume increases, the greywater level rises and enters the vertical water distribution branch pipe, entering the surrounding substrate through the water distribution holes on the vertical water distribution branch pipe. Because the diameter of the water distribution holes on the vertical water distribution branch pipe is small, the water level will gradually rise, and water distribution is completed through multiple layers of water distribution holes. Due to the small diameter of the water distribution holes, the resistance loss of sewage through the water distribution holes is greater than that through the main water distribution pipe, which can achieve uniform water distribution. The water distribution holes of the vertical water distribution branch pipe are horizontally opened, which can prevent fine particles from entering the vertical water distribution branch pipe under gravity when the surrounding substrate is filled vertically, thus effectively preventing blockage. In addition, the main water distribution pipe is connected to a drain pipe with a drain valve. When particulate matter in the incoming water enters the main water distribution pipe and causes siltation, the drain valve can be quickly opened, allowing the grey water filling the main water distribution pipe and the vertical branch water distribution pipes to be rapidly discharged, flushing out the accumulated particulate matter. Finally, preferably, a vent pipe perpendicular to the main water distribution pipe and with an open top is provided on the main water distribution pipe, allowing for faster silt removal under atmospheric pressure.

[0008] In summary, the artificial wetland water distribution device described in this utility model not only has the function of preventing clogging, but also has the function of self-draining particulate matter accumulation. Attached Figure Description

[0009] The structure of this utility model will be better understood from the following description taken in conjunction with the accompanying drawings, wherein the same reference numerals identify the same elements: Figure 1 This is a structural schematic diagram of an embodiment of the present invention. Detailed Implementation

[0010] The specific embodiments of this utility model will now be described in conjunction with the accompanying drawings.

[0011] like Figure 1 As shown, an artificial wetland water distribution device according to a specific embodiment of the present invention includes an inlet pipe 1 and a main water distribution pipe 2 connected to the inlet pipe 1 via a pipeline. The inlet pipe 1 is equipped with an inlet valve 3. The main water distribution pipe 2 is equipped with vertical water distribution branch pipes 4 that are perpendicular to and connected to the main water distribution pipe 2. The top of the vertical water distribution branch pipe 4 is closed, and horizontally opened water distribution holes 5 are provided at different heights around the pipe wall. The main water distribution pipe 2 is also connected to a drain pipe 6, which is equipped with a drain valve 7. In this embodiment, the main water distribution pipe 2 is also equipped with a vent pipe 8 that is perpendicular to and connected to the main water distribution pipe, with an open top.

[0012] Because the main water distribution pipe 2 is equipped with vertical water distribution branch pipes 4 that are perpendicular to and connected to the main water distribution pipe, and the top of the vertical water distribution branch pipe 4 is closed, and horizontally opened water distribution holes 5 are set at different heights around the pipe wall, the diameter of the water distribution holes 5 is smaller than that of the surrounding substrate, when the grey water enters the water distribution device from the inlet pipe 1, the grey water first fills the main water distribution pipe 2. As the water volume increases, the grey water level rises and enters the vertical water distribution branch pipe 4. It then enters the surrounding substrate through the water distribution holes 5 on the vertical water distribution branch pipe 4. Because the diameter of the water distribution holes 5 on the vertical water distribution branch pipe 4 is small, the water level will gradually rise, and water distribution is completed through multiple layers of water distribution holes 5. Because the diameter of the water distribution holes 5 is small, the resistance loss of sewage through the water distribution holes 5 is greater than that through the main water distribution pipe, which can achieve uniform water distribution. The water distribution holes 5 of the vertical water distribution branch pipe 4 are horizontally opened, which can prevent fine particles from entering the vertical water distribution branch pipe 4 under gravity when the surrounding substrate is filled vertically, thus effectively preventing blockage. In addition, the main water distribution pipe 2 is also connected to a drain pipe 6 with a drainage valve 7. When particles in the incoming water enter the main water distribution pipe and cause siltation, the drain valve 7 can be quickly opened, and the grey water filling the main water distribution pipe 2 and the vertical water distribution branch pipe 4 can be quickly discharged, flushing out the silted particles in the main water distribution pipe 2. Finally, preferably, a vent pipe 8 is provided on the main water distribution pipe 2, perpendicular to the main water distribution pipe 2 and with a pipe connection. The top of the vent pipe 8 is open, so that the silt is discharged more quickly under atmospheric pressure.

[0013] In summary, the artificial wetland water distribution device described in this utility model not only has the function of preventing clogging, but also has the function of self-draining particulate matter accumulation.

[0014] The technical content and features of this utility model have been disclosed above. However, it is understood that, under the inventive concept of this utility model, those skilled in the art can make various changes and improvements to the above structure, including combinations of the technical features disclosed or claimed herein, as well as other combinations that explicitly include these features. All such modifications and / or combinations fall within the technical field to which this utility model pertains and are within the protection scope of the claims of this utility model.

Claims

1. An artificial wetland water distribution device, comprising an inlet pipe and a main water distribution pipe connected to the inlet pipe via a pipeline, wherein an inlet valve is provided on the inlet pipe, characterized in that: The main water distribution pipe is equipped with a vertical water distribution branch pipe that is perpendicular to the main water distribution pipe and has a pipeline connection. The top of the vertical water distribution branch pipe is closed and the pipe wall is provided with horizontally opened water distribution holes at different heights. The main water distribution pipe is also connected to a drain pipe with a pipeline connection, and a drain valve is provided on the drain pipe.

2. The artificial wetland water distribution device as described in claim 1, characterized in that: The main water distribution pipe is also equipped with a vent pipe that is perpendicular to the main water distribution pipe and is connected to the pipeline, with an opening at the top of the vent pipe.

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