Surface flow wetland purification structure

Abstract

The utility model relates to a surface flow wetland purification structure which is technically characterized in that a first front cavity and a first rear cavity are arranged in a first filter box, longitudinal filter cartridges are respectively arranged in the first front cavity and the first rear cavity, a second front cavity and a second rear cavity are arranged in a second filter box, and longitudinal filter cartridges are respectively arranged in the second front cavity and the second rear cavity. A first through hole and a second through hole which are communicated with the lower end of a longitudinal filter cartridge and a second front cavity and a second rear cavity are formed in the top face of a second filter box, a third front cavity and a third rear cavity which are communicated with the bottoms of the second front cavity and the second rear cavity are formed in a third filter box, an annular lifting basket is arranged between the longitudinal filter cartridge and the first front cavity or the first rear cavity, and first snakelike flow guide channels are arranged in the second front cavity and the second rear cavity respectively. Second snake-shaped flow guide channels communicated with the tail ends of the first snake-shaped flow guide channels are respectively arranged in the third front cavity and the third rear cavity; and filtering fillers are arranged in the first snake-shaped flow guide channels and the second snake-shaped flow guide channels. According to the structure, the filtering structure can be conveniently, timely and rapidly maintained, continuous purification treatment on a wetland water source is not affected, the continuity of purification work is guaranteed, and the purification efficiency is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of surface flow wetlands, in particular to a surface flow wetland purification structure. Background Art

[0002] At present, surface flow wetlands are usually artificial ecosystems transformed from low-lying areas such as natural swamps and abandoned rivers, and can be used to treat domestic sewage, industrial wastewater, agricultural wastewater, etc. Surface flow wetlands generally distribute water to the surface of the wetland, and the water flows forward in a push flow on the surface of the wetland. During the flow process, it contacts the soil, plants, and the biofilm of plant roots, and purifies the sewage through the coordinated effects of physics, chemistry, and biology.

[0003] CN 218478643 U discloses a surface flow wetland purification structure, which includes a box body 1, the top wall of the box body 1 is connected to the box body 2 through two connecting plates, the box body 1 and the box body 2 are connected through a pipe 1, a box body 3 is fixedly arranged above one side of the box body 2, the box body 3 and the box body 2 are connected through a pipe 2, a stirring mechanism is arranged in the box body 2, a water pump is fixedly arranged at the top of the box body 3, the outlet of the water pump is connected to the box body 3 through a connecting pipe, a filter screen is fixedly connected in the box body 3, a fixed net is fixedly connected in the box body 1, a number of activated carbons are installed on the fixed net, multiple groups of filter elements are fixedly connected in the box body 1 and below the fixed net, and a water outlet pipe is connected below one side of the box body 1. The surface flow wetland purification structure is intended to filter and purify the wetland water source in advance to prevent the water quality of the water source from damaging the wetland ecological environment. However, there are the following problems during use: wetland water continuously enters this pretreatment structure, and due to the rapid accumulation of intercepted solid impurities, the maintenance of this pretreatment structure must be timely and rapid. However, the surface flow wetland purification structure is not conducive to continuous sewage purification during maintenance. Utility Model Content

[0004] The purpose of the utility model is to provide a surface flow wetland purification structure that solves the above-mentioned problems, which is not only convenient for timely and rapid maintenance of the filtering structure therein, but also does not affect the continuous purification treatment of the wetland water source, thereby ensuring the continuity of the purification work and ensuring the purification efficiency.

[0005] The technical solution of the utility model is:

[0006] A surface flow wetland purification structure comprises a first filter box, a second filter box arranged at the bottom of the first filter box, and a third filter box arranged on the left side of the second filter box, wherein the technical key points are as follows: a longitudinal partition is arranged in the first filter box and is divided into a first front cavity and a first rear cavity by the longitudinal partition, the first front cavity and the first rear cavity are respectively provided with longitudinal filter cartridges, the second filter box is provided with a second front cavity and a second rear cavity, the top surface of the second filter box is provided with a first through hole connecting the lower end of one longitudinal filter cartridge with the second front cavity, and a second through hole connecting the lower end of another longitudinal filter cartridge with the second rear cavity A through hole is provided in the third filter box, and a third front chamber connected to the bottom of the second front chamber and a third rear chamber connected to the bottom of the second rear chamber are provided. An annular liquid inlet chamber is formed between the longitudinal filter cylinder and the first front chamber or the first rear chamber. An annular basket is provided at the bottom of the annular liquid inlet chamber and is arranged around the longitudinal filter cylinder. A first serpentine guide channel is provided in the second front chamber and the second rear chamber, respectively. A second serpentine guide channel connected to the end of the first serpentine guide channel is provided in the third front chamber and the third rear chamber, respectively. Filter fillers are provided in the first serpentine guide channel and the second serpentine guide channel.

[0007] In the above-mentioned surface flow wetland purification structure, the first serpentine diversion channel is formed by connecting multiple sections of horizontal diversion channels end to end, and the second serpentine diversion channel is formed by connecting multiple sections of vertical diversion channels end to end.

[0008] In the above-mentioned surface flow wetland purification structure, a first inlet pipeline connected to the first front cavity and a second inlet pipeline connected to the first rear cavity are provided on the top of the first filter box. The upper ends of the first inlet pipeline and the second inlet pipeline are connected to a horizontal main pipe, and the horizontal main pipe is also connected to the main inlet. The first inlet pipeline and the second inlet pipeline are respectively provided with a gate valve.

[0009] In the above-mentioned surface flow wetland purification structure, the side wall of the third filter box is provided with a first outlet pipe corresponding to the end of the second serpentine guide channel of the third front chamber, and a second outlet pipe corresponding to the end of the second serpentine guide channel of the third rear chamber.

[0010] The above-mentioned surface flow wetland purification structure, the annular basket includes a lower annular storage tank, a filter wall extending along the inner circumferential wall of the lower annular storage tank to the top surface of the first filter box, a plurality of pillars extending along the outer circumferential wall of the lower annular storage tank to the top surface of the first filter box, and an annular pressure cover connected to the filter wall and the upper ends of the pillars, the upper end of the longitudinal filter cartridge extends to the top surface of the first filter box, the top surface of the first filter box is provided with an annular outlet corresponding to the annular pressure cover, the edge of the annular pressure cover is pressed on the edge of the annular outlet, and the top surface of the annular pressure cover is provided with a first handle.

[0011] In the above-mentioned surface flow wetland purification structure, the right side surface of the second filter box is provided with a side end cover corresponding to the first serpentine guide channel, and the side end cover is provided with a second handle.

[0012] In the above-mentioned surface flow wetland purification structure, the top surface of the third filter box is provided with a top cover corresponding to the second serpentine diversion channel, and the top cover is provided with a third handle.

[0013] In the above-mentioned surface flow wetland purification structure, the lower parts of the left and right side walls of the first front chamber and the first rear chamber are respectively provided with guiding inclined surfaces extending toward the lower annular storage tank of the annular basket.

[0014] The beneficial effects of the utility model are:

[0015] 1. The first front chamber, the second front chamber and the third front chamber are interconnected, and the first rear chamber, the second rear chamber and the third rear chamber are interconnected, thereby forming two sets of filtration and purification systems. The wetland water source can enter the two filtration and purification systems at the same time, or one of them can be selected for filtration and purification, which is convenient for maintenance and repair in the other filtration and purification system, without affecting the continuous purification of the wetland water source, ensuring the continuity of the purification work and the purification efficiency.

[0016] 2. The annular basket is used to collect solid impurities accumulated on the outside of the longitudinal filter cylinder. During maintenance, the annular basket is lifted out of the first filter box to facilitate timely cleaning of the solid impurities in the annular basket. When performing maintenance in the second and third filter boxes, the single non-working cavity can be opened to ensure that the maintenance work is carried out normally and quickly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 yes Figure 1 A top view of a part of the cross section;

[0019] Figure 3 yes Figure 1 Enlarged view of part A in the middle.

[0020] In the figure: 1. first filter box, 2. first handle, 3. longitudinal filter cartridge, 4. annular pressure cover, 5. main inlet, 6. horizontal main pipe, 7. gate valve, 8. first inlet pipeline, 9. support, 10. filter wall, 11. lower annular storage tank, 12. side end cover, 13. second handle, 14. filter packing, 15. first serpentine guide channel, 16. second filter box, 17. top cover, 18. third handle, 19. filter packing, 20. second serpentine guide channel, 21. third filter box, 22. first outlet pipeline, 23. second outlet pipeline, 24. second inlet pipeline, 25. first front chamber. DETAILED DESCRIPTION

[0021] The utility model is described in detail according to the accompanying drawings of the specification.

[0022] like Figure 1 to Figure 3 As shown, the surface flow wetland purification structure includes a first filter box 1 , a second filter box 16 arranged at the bottom of the first filter box 1 , and a third filter box 21 arranged at the left side of the second filter box 16 .

[0023] The first filter box 1 is provided with a longitudinal partition and is divided into a first front chamber 25 and a first rear chamber by the longitudinal partition, and the first front chamber 25 and the first rear chamber are respectively provided with longitudinal filter cartridges 3. The second filter box 16 is provided with a second front chamber and a second rear chamber, and the top surface of the second filter box 16 is provided with a first through hole connecting the lower end of one longitudinal filter cartridge 3 with the second front chamber, and a second through hole connecting the lower end of another longitudinal filter cartridge 3 with the second rear chamber. The third filter box 21 is provided with a third front chamber connected to the bottom of the second front chamber, and a third rear chamber connected to the bottom of the second rear chamber.

[0024] An annular liquid inlet cavity is formed between the longitudinal filter cartridge 3 and the first front cavity 25 or the first rear cavity, and an annular basket arranged around the longitudinal filter cartridge 3 is provided at the bottom of the annular liquid inlet cavity. In this embodiment, the annular basket comprises a lower annular storage tank 11, a filter wall 10 extending along the inner circumferential wall of the lower annular storage tank 11 toward the top surface of the first filter box 1, a plurality of pillars 9 extending along the outer circumferential wall of the lower annular storage tank 11 toward the top surface of the first filter box 1, and an annular gland 4 connected to the upper ends of the filter wall 10 and the pillars 9. The upper end of the longitudinal filter cartridge 3 extends to the top surface of the first filter box 1, and the top surface of the first filter box 1 is provided with an annular outlet corresponding to the annular gland 4, the edge of the annular gland 4 is pressed on the edge of the annular outlet, and the top surface of the annular gland 4 is provided with a first handle 2. The lower parts of the left and right side walls of the first front cavity 25 and the first rear cavity are respectively provided with guiding inclined surfaces extending toward the lower annular storage tank 11 of the annular basket.

[0025] The second front cavity and the second rear cavity are respectively provided with a first serpentine guide channel 15, and the third front cavity and the third rear cavity are respectively provided with a second serpentine guide channel 20 connected to the end of the first serpentine guide channel 15. In this embodiment, the first serpentine guide channel 15 is formed by connecting multiple sections of horizontal guide channels end to end, and the second serpentine guide channel 20 is formed by connecting multiple sections of vertical guide channels end to end. Filter fillers 14 and 19 are provided in the first serpentine guide channel 15 and the second serpentine guide channel 20. The right side of the second filter box 16 is provided with a side end cover 12 corresponding to the first serpentine guide channel 15, and the side end cover 12 is provided with a second handle 13. The top surface of the third filter box 21 is provided with a top cover 17 corresponding to the second serpentine guide channel 20, and the top cover 17 is provided with a third handle 18.

[0026] In this embodiment, the top of the first filter box 1 is provided with a first inlet pipeline 8 communicating with the first front cavity 25 and a second inlet pipeline 24 communicating with the first rear cavity. The upper ends of the first inlet pipeline 8 and the second inlet pipeline 24 are connected to a horizontal main pipe 6, and the horizontal main pipe 6 is also connected to the main inlet 5. The first inlet pipeline 8 and the second inlet pipeline 24 are respectively provided with a gate valve 7. The side wall of the third filter box 21 is provided with a first outlet pipeline 22 corresponding to the end of the second serpentine guide channel 20 of the third front cavity, and a second outlet pipeline 23 corresponding to the end of the second serpentine guide channel 20 of the third rear cavity.

[0027] Working principle:

[0028] 1. When in use, the sewage transmitted from the wetland water source is injected into the horizontal main pipe 6 through the main inlet 5. The sewage is diverted to the first inlet pipe 8 and the second inlet pipe 24 through the horizontal main pipe 6, and then enters the annular liquid inlet cavity of the two first filter boxes 1 through the first inlet pipe 8 and the second inlet pipe 24. After filtering the solid medium through the filter wall 10 of the annular basket and the longitudinal filter cylinder 3, it enters the two first serpentine guide channels 15 of the second filter box 16. After the secondary filtration of the filter filler 14 in the first serpentine guide channel 15, it enters the two second serpentine guide channels 20 of the third filter box 21. After the tertiary filtration of the filter filler 19 in the second serpentine guide channel 20, it is discharged to the surface flow wetland through the first outlet pipe 22 and the second outlet pipe 23 to avoid the solid impurities in the sewage from causing damage to the wetland.

[0029] 2. Regularly clean one of the annular liquid inlet cavities, that is, lift the annular basket to clean out solid impurities. At the same time, regularly clean and replace the filter fillers in the corresponding first serpentine guide channel 15 and the corresponding second serpentine guide channel 20.

[0030] The above is a detailed description of the embodiments of the utility model, but the above contents are only preferred embodiments of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of the invention of the utility model should still fall within the scope of this patent.

Claims

1. A surface flow wetland purification structure, comprising a first filter box, a second filter box arranged at the bottom of the first filter box, and a third filter box arranged at the left side of the second filter box, characterized in that: The first filter box is provided with a longitudinal partition and is divided into a first front chamber and a first rear chamber by the longitudinal partition, the first front chamber and the first rear chamber are respectively provided with longitudinal filter cartridges, the second filter box is provided with a second front chamber and a second rear chamber, the top surface of the second filter box is provided with a first through hole connecting the lower end of a longitudinal filter cartridge with the second front chamber, and a second through hole connecting the lower end of another longitudinal filter cartridge with the second rear chamber, the third filter box is provided with a third front chamber connected to the bottom of the second front chamber, and a third rear chamber connected to the bottom of the second rear chamber, an annular liquid inlet chamber is formed between the longitudinal filter cartridge and the first front chamber or the first rear chamber, the bottom of the annular liquid inlet chamber is provided with an annular basket arranged around the longitudinal filter cartridge, the second front chamber and the second rear chamber are respectively provided with a first serpentine guide channel, the third front chamber and the third rear chamber are respectively provided with a second serpentine guide channel connected to the end of the first serpentine guide channel, and filter fillers are provided in the first serpentine guide channel and the second serpentine guide channel.

2. The surface flow wetland purification structure according to claim 1, characterized in that: The first serpentine guide channel is formed by connecting multiple sections of horizontal guide channels end to end, and the second serpentine guide channel is formed by connecting multiple sections of vertical guide channels end to end.

3. The surface flow wetland purification structure according to claim 1, characterized in that: A first inlet pipeline communicating with the first front cavity and a second inlet pipeline communicating with the first rear cavity are provided at the top of the first filter box. The upper ends of the first inlet pipeline and the second inlet pipeline are connected to a horizontal main pipe, and the horizontal main pipe is also connected to the main inlet. The first inlet pipeline and the second inlet pipeline are respectively provided with a gate valve.

4. The surface flow wetland purification structure according to claim 1, characterized in that: The side wall of the third filter box is provided with a first outlet pipeline corresponding to the end of the second serpentine guide channel of the third front cavity, and a second outlet pipeline corresponding to the end of the second serpentine guide channel of the third rear cavity.

5. The surface flow wetland purification structure according to claim 1 is characterized by: The annular basket includes a lower annular storage tank, a filter wall extending along the inner circumferential wall of the lower annular storage tank to the top surface of the first filter box, a plurality of pillars extending along the outer circumferential wall of the lower annular storage tank to the top surface of the first filter box, and an annular pressure cover connected to the filter wall and the upper ends of the pillars. The upper end of the longitudinal filter cylinder extends to the top surface of the first filter box. The top surface of the first filter box is provided with an annular outlet corresponding to the annular pressure cover. The edge of the annular pressure cover is pressed on the edge of the annular outlet. The top surface of the annular pressure cover is provided with a first handle.

6. The surface flow wetland purification structure according to claim 1, characterized in that: A side end cover corresponding to the first serpentine flow guide channel is provided on the right side surface of the second filter box, and a second handle is provided on the side end cover.

7. The surface flow wetland purification structure according to claim 1, characterized in that: A top cover corresponding to the second serpentine flow guide channel is disposed on the top surface of the third filter box, and a third handle is disposed on the top cover.

8. The surface flow wetland purification structure according to claim 1, characterized in that: The lower parts of the left and right side walls of the first front cavity and the first rear cavity are respectively provided with guiding inclined surfaces extending toward the lower annular storage tank of the annular basket.

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