High flux rainwater filtration separation device

Abstract

This utility model relates to a high-throughput rainwater filtration and separation device, comprising: a purification tank with an inlet pipe at its left end and a drain pipe at its right end, the drain pipe being connected to the inlet of a rainwater storage tank; a lower partition, located at the bottom of the purification tank and extending upwards, situated between the inlet pipe and the drain pipe; an upper partition, located at the top of the purification tank and extending downwards, situated between the inlet pipe and the drain pipe; and a filter device installed at the inlet of the drain pipe, through which rainwater is filtered and discharged from the drain pipe. The upper partition intercepts suspended solids, and the lower partition intercepts silt. Rainwater containing a small amount of suspended solids and silt is filtered by the filter device and discharged from the drain pipe, resulting in rainwater with high purity and excellent water quality flowing into the rainwater storage tank. The filter device intercepts a small amount of suspended solids and silt, making it less prone to clogging and extending its service life. Impurities remain inside the purification tank and do not flow out, causing pollution.

Description

Technical Field

[0001] This utility model relates to the technical field of urban rainwater harvesting devices, specifically a high-throughput rainwater filtration and separation device. Background Technology

[0002] With the acceleration of urbanization, rainwater management has become an important issue in environmental protection and resource utilization. During its flow, rainwater carries pollutants such as leaves, silt, suspended solids, mineral oil, and hydrocarbons. If it directly enters rainwater storage tanks or infiltration systems, it will not only affect water quality but may also cause groundwater pollution and system blockage.

[0003] Traditional rainwater purification systems typically employ a combination of intercepting baskets and pre-treatment devices. Their primary function is to filter larger particles (such as leaves and plastic) through simple physical interception, but they are less effective at removing fine sediment and suspended solids. Especially in areas with high rainfall, without efficient pre-treatment devices, pollutants will gradually seep into the ground after long-term operation, leading to soil and groundwater pollution. Utility Model Content

[0004] To address the technical problems in the background art, this utility model discloses a high-throughput rainwater filtration and separation device.

[0005] This utility model provides a high-throughput rainwater filtration and separation device, comprising:

[0006] The purification box has an inlet pipe on the left end and a drain pipe on the right end, which is connected to the inlet of the rainwater storage tank.

[0007] The lower partition is located at the bottom of the purification box and extends upwards; the lower partition is located between the water inlet pipe and the water outlet pipe.

[0008] The upper partition is located at the top of the purification box and extends downwards; the upper partition is located between the water inlet pipe and the water outlet pipe.

[0009] A filter device is installed at the inlet of the drain pipe, and rainwater is filtered through the filter device before being discharged from the drain pipe.

[0010] The upper baffle intercepts suspended solids, and the lower baffle intercepts silt. Rainwater containing a small amount of suspended solids and silt is filtered by the filtration device and then discharged from the drain pipe. The beneficial effects of this setup are: 1. The rainwater flowing into the rainwater storage tank has higher purity and better water quality; 2. The filtration device intercepts less suspended solids and silt, making it less prone to clogging and extending its service life; 3. Impurities remain in the purification tank and will not flow out and cause pollution; 4. This invention replaces the traditional rainwater pretreatment device, not only achieving the purpose of filtration and purification, but also having a simpler structure and fewer detours compared to the flow channels in traditional rainwater pretreatment devices. Therefore, this invention reduces the resistance to rainwater flow, increases the flow rate, and is more suitable for areas with high rainfall.

[0011] Furthermore, the filter device is a hexagonal honeycomb inclined tube filled with packing material; the upper end of the filter device is tilted to the left, and the lower end is tilted to the right. The beneficial effects of this design are: 1. Through the synergistic effect of the hexagonal honeycomb inclined tube filter device and its internal packing material, it can effectively intercept fine silt, suspended solids, and some dissolved pollutants in rainwater, significantly improving filtration accuracy and overcoming the shortcomings of traditional intercepting baskets in removing fine particles; 2. The inclined hexagonal honeycomb inclined tube can extend the water flow path, increase the contact time between pollutants and packing material, and at the same time enhance the separation effect by utilizing gravity settling and adsorption.

[0012] Furthermore, a gap is provided between the filter device and the lower partition. In this way, a flow channel connecting the left and right areas of the lower partition is formed between the filter device and the lower partition.

[0013] The specific installation structure of the filter device is as follows: a horizontally arranged support plate is set at the right end of the purification box; the right end of the filter device is fixedly connected to the upper end of the support plate, and the left end is fixedly connected to the right side of the upper partition.

[0014] Furthermore, a gap is provided between the filter device and the right side of the purification chamber, forming a clean water chamber; a drain pipe extends downwards from the left end of the drain pipe into the clean water chamber. The combination of the clean water chamber and the drain pipe allows the filtered clean water to be discharged in a specific direction, reducing the risk of filter media clogging.

[0015] Furthermore, the purification chamber is equipped with an upward-extending first inspection well and a second inspection well at both ends; the water inlet pipe is located on the first inspection well. The design of the first and second inspection wells facilitates internal cleaning and maintenance of the device, ensuring long-term operational stability.

[0016] Furthermore, the lower baffle is located to the right of the upper baffle and directly below the left end of the filter device. This arrangement results in a small flow area and a high flow velocity in the channel formed between the filter device and the lower baffle, allowing the water flowing through the channel to flush the lower end of the filter device and preventing clogging.

[0017] Because rainwater exerts a strong scouring force on the well wall when it enters the first inspection well through the inlet pipe, it can easily damage the first inspection well. Therefore, a further improvement is made: the outlet end of the inlet pipe is connected to a drain pipe that extends downwards and has its outlet facing the lower partition. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] In the diagram: 1. Purification box; 2. Lower partition; 3. Upper partition; 4. Filter device; 5. Clean water chamber; 6. Drainage pipe; 7. First inspection well; 8. Second inspection well; 9. Drain pipe; 11. Inlet pipe; 12. Drain pipe; 13. Support plate; 14. Left end cover; 15. Right end cover. Detailed Implementation

[0021] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0022] like Figure 1 As shown, and with Figure 1 For reference, this utility model discloses a high-throughput rainwater filtration and separation device, including a cylindrical, horizontally arranged purification box 1, with a left end cover 14 and a right end cover 15 respectively sealed at its left and right ends, which are fixed and sealed by welding.

[0023] The top of the purification box 1 has two upward-extending inspection wells, namely the first inspection well 7 and the second inspection well 8. The design of the first inspection well 7 and the second inspection well 8 facilitates the internal cleaning and maintenance of the device and ensures long-term operational stability.

[0024] The first inspection well 7 is connected to the middle of the inlet pipe 11. After the rainwater passes through the intercepting basket to filter out large impurities, it flows into the purification tank 1 through the inlet pipe 11. The upper part of the right end cover 15 is connected to the drain pipe 12, which is connected to the inlet of the rainwater storage tank. The purified water is discharged from the drain pipe 12 and enters the rainwater storage tank.

[0025] A lower partition 2 extending upwards is provided at the bottom of the middle position of the purification tank 1, and an upper partition 3 extending downwards is provided at the top of the middle position of the purification tank 1. The upper partition 3 is located to the left of the lower partition 2 and there is a gap between the upper partition 3 and the lower partition 2. Water in the left area of ​​the lower partition 2 flows into the right area of ​​the lower partition 2 from between the upper and lower partitions 2.

[0026] The purification tank 1 is also equipped with a filter device 4. Rainwater is filtered through the filter device 4 and discharged from the drain pipe 12. In this embodiment, the filter device 4 is a hexagonal honeycomb inclined tube filled with packing material. The outlet of the hexagonal honeycomb inclined tube faces upward and the inlet faces downward. The upper end of the filter device 4 is tilted to the left and the lower end is tilted to the right. The advantages of this setting are: 1. Through the synergistic effect of the hexagonal honeycomb inclined tube filter device 4 and its internal packing material, it can effectively intercept fine silt, suspended solids and some dissolved pollutants in rainwater, significantly improving the filtration accuracy and overcoming the shortcomings of traditional intercepting baskets in removing fine particles; 2. The inclined hexagonal honeycomb inclined tube can extend the water flow path, increase the contact time between pollutants and packing material, and at the same time enhance the separation effect by utilizing gravity sedimentation and adsorption.

[0027] The specific installation structure of the filter device 4 is as follows: a horizontally arranged support plate 13 is connected to the left side of the right end cover 15, the lower end of the right end of the filter device 4 is connected to the upper end of the support plate 13, and the left end is connected to the right side of the upper partition 3, all of which are fixed by glue.

[0028] A gap is provided between the filter device 4 and the right end cover 15, thereby forming a wedge-shaped clean water chamber 5 that is wider at the top and narrower at the bottom between the filter device 4, the right end cover 15, and the support plate 13. A drain pipe 6 extends downward from the left end of the drain pipe 12 into the clean water chamber 5. The cooperation between the clean water chamber 5 and the drain pipe 6 allows the filtered clean water to be discharged in a directional manner, reducing the risk of filter media clogging.

[0029] The lower baffle 2 is located directly below the left end of the filter device 4. With this arrangement, the flow channel formed between the filter device 4 and the lower baffle 2 has a small flow area and a fast flow velocity, which causes the water flowing through the channel to flush the lower end of the filter device 4, thus preventing the filter device 4 from becoming clogged.

[0030] Because rainwater has a strong scouring force on the well wall when it enters the first inspection well 7 through the inlet pipe 11, which can easily damage the first inspection well 7, the outlet end of the inlet pipe 11 is connected to a drain pipe 9 that extends downward and has its outlet facing the lower partition 2.

[0031] The upper baffle 3 intercepts suspended solids, and the lower baffle 2 intercepts silt. Rainwater containing a small amount of suspended solids and silt is filtered by the filter device 4 and then discharged from the drain pipe 12. The advantages of this embodiment are: 1. The rainwater flowing into the rainwater storage tank has higher purity and better water quality; 2. The filter device 4 intercepts less suspended solids and silt, making it less prone to clogging and extending its service life; 3. Impurities remain in the purification tank 1 and will not flow out of the purification tank 1 to cause pollution; when there are too many impurities, they can be cleaned using a sludge truck; 4. This embodiment replaces the traditional rainwater pretreatment device, which is the pretreatment rainwater treatment device disclosed in patent CN201510591599.5. It not only achieves the purpose of filtration and purification, but also the flow channel in this embodiment is simpler in structure and has fewer deflections compared to the flow channel in the traditional rainwater pretreatment device. Therefore, this embodiment reduces the resistance to rainwater flow, has a larger flow rate, and is more suitable for areas with high rainfall.

[0032] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A high flux rainwater filtration separation device characterised in that, include: The purification box (1) has an inlet pipe (11) at its left end and a drain pipe (12) at its right end. The drain pipe (12) is connected to the inlet of the rainwater storage tank. The lower partition (2) is located at the bottom of the purification box (1) and extends upward; the lower partition (2) is located between the water inlet pipe (11) and the drain pipe (12); An upper partition (3) is provided on the top of the purification box (1) and extends downward; the upper partition (3) is located between the water inlet pipe (11) and the drain pipe (12); A filter device (4) is installed at the inlet of the drain pipe (12). Rainwater is filtered by the filter device (4) and then discharged from the drain pipe (12).

2. The high-throughput rainwater filtration and separation device according to claim 1, characterized in that: The filter device (4) is a hexagonal honeycomb inclined tube, which is filled with filler. The upper end of the filter device (4) is tilted to the left and the lower end is tilted to the right.

3. The high-throughput rainwater filtration and separation device according to claim 2, characterized in that: There is a gap between the filter device (4) and the lower partition (2).

4. The high-throughput rainwater filtration and separation device according to claim 3, characterized in that: A horizontally arranged support plate (13) is provided at the right end of the purification box (1); The right end of the filter device (4) is fixedly connected to the upper end of the support plate (13), and the left end is fixedly connected to the right side of the upper partition plate (3).

5. The high-throughput rainwater filtration and separation device according to claim 4, characterized in that: The filter device (4) and the right side of the purification box (1) are provided with a gap, which forms a water purification chamber (5); The left end of the drain pipe (12) leads to a drain pipe (6) that extends downward into the clean water chamber (5).

6. The high-throughput rainwater filtration and separation device according to claim 1, characterized in that: The purification box (1) is provided with an upwardly extending first inspection well (7) and second inspection well (8) at both ends; The water inlet pipe (11) is installed on the first inspection well (7).

7. The high-throughput rainwater filtration and separation device according to claim 4, characterized in that: The lower partition (2) is located to the right of the upper partition (3) and directly below the left end of the filter device (4).

8. The high-throughput rainwater filtration and separation device according to claim 6, characterized in that: The inlet pipe (11) is connected to a drain pipe (9) that extends downwards and has its outlet facing the lower partition (2).

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