Rainwater collecting and purifying device for sponge city

Abstract

The utility model relates to a rainwater collecting and purifying device for a sponge city, and relates to the field of urban water storage technologies. The device comprises a water distribution pipe and a water collecting well which are buried in a soil body, the water distribution pipe is connected with a plurality of parallel branch pipes, each branch pipe is provided with a plurality of through holes arranged at equal intervals in the length direction of the branch pipe, the branch pipes are wrapped with filter cloth used for covering the through holes, and the water distribution pipe is communicated with the water collecting well; a filter plate and a filter cylinder are arranged in the water collecting well, the filter cylinder is located below the filter plate, a gravel layer is arranged in the filter cylinder, a plurality of screw cylinders arranged in the circumferential direction of the axis of the filter cylinder are fixed to the bottom of the filter cylinder, a stud is in threaded connection with the interior of each screw cylinder, and counter bores allowing the studs to be inserted in are formed in the inner wall of the water collecting well. According to the rainwater collection and purification device, rainwater collection and purification are achieved, the cleanliness of the stored rainwater is improved, and the direct utilization range of the rainwater is widened.

Description

Technical Field

[0001] The present application relates to the field of urban water storage technology, and in particular to a rainwater collection and purification device for a sponge city. Background Art

[0002] Sponge city is a new generation of urban stormwater management concept, which means that the city can adapt to environmental changes and respond to natural disasters caused by rain like a sponge with good flexibility. It absorbs, stores and infiltrates water when it rains, and releases and utilizes the stored water when needed, so as to realize the free migration of rainwater in the city.

[0003] Since rainwater itself contains impurities, and rainwater discharged directly from the ground will carry various debris, the impurity content in the stored rainwater is relatively high. Different occasions have different requirements for the cleanliness of rainwater, which easily leads to a smaller scope of direct use of rainwater. Utility Model Content

[0004] In order to improve the problem that the scope of direct utilization of rainwater is small, the present application provides a rainwater collection and purification device for a sponge city.

[0005] The rainwater collection and purification device for a sponge city provided in this application adopts the following technical solution:

[0006] A rainwater collection and purification device for a sponge city, comprising a water distribution pipe and a water collection well buried in soil, the water distribution pipe is connected to a plurality of mutually parallel branch pipes, each of the branch pipes is provided with a plurality of through holes arranged equidistantly along its length direction, the branch pipes are wrapped with filter cloth for covering the through holes, and the water distribution pipe is connected to the water collection well;

[0007] A filter plate and a filter cartridge are provided in the water collection well. The filter cartridge is located below the filter plate and has a sand and gravel layer in it. A plurality of screw barrels arranged circumferentially along its own axis are fixed to the bottom of the filter cartridge. Each screw barrel is threadedly connected with a stud. A countersunk hole for inserting the stud is opened on the inner wall of the water collection well.

[0008] Optionally, two filter cartridges are provided in parallel and are distributed up and down, the sand and gravel layer is arranged in the upper filter cartridge, and activated carbon is arranged in the lower filter cartridge.

[0009] Optionally, a coaxially distributed funnel is fixed to the bottom of the filter cartridge below, the narrow end of the funnel faces downward and is connected to a first water pipe, the end of the first water pipe away from the funnel is horizontally connected to a second water pipe, the second water pipe is vertically connected to a plurality of downward third water pipes, the end of the third water pipe is threadedly connected to an end cap, the end cap is provided with a plurality of drainage holes, and activated carbon is provided in the funnel, the first water pipe, the second water pipe and the third water pipe.

[0010] Optionally, a circular ring is fixed to the open end of the funnel, and the circular ring is fixed to the filter cartridge by screws.

[0011] Optionally, a sealing gasket is provided between the ring and the filter cartridge.

[0012] Optionally, a plurality of support plates for supporting the filter plate are provided on the inner wall of the water collection well, a core shaft is vertically provided on the filter plate, and a cleaning brush is passed through the core shaft.

[0013] In summary, the present application includes at least one of the following beneficial technical effects:

[0014] 1. After being filtered by the filter cloth, rainwater enters the branch pipe through the through hole, and the rainwater in each branch pipe flows into the water distribution pipe, and then is discharged into the water collection well by the water distribution pipe; the rainwater discharged from the water distribution pipe and the rainwater directly flowing into the water collection well are filtered by the filter plate, sand and gravel layer and activated carbon layer by layer, and then fall into the water collection well for storage, thus realizing the collection and purification of rainwater, improving the cleanliness of the stored rainwater, and increasing the scope of direct utilization of rainwater;

[0015] 2. The number of activated carbons in the funnel, the first water pipe, the second water pipe and the third water pipe is increased, which is conducive to improving the purification effect of rainwater. At the same time, several third branches increase the rainwater discharge path, which is conducive to speeding up the discharge speed of rainwater after purification by activated carbon;

[0016] 3. The operator can rotate the cleaning brush around the core shaft to brush the filter plate to keep the holes on the filter plate unobstructed. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0018] Figure 2 It is a schematic diagram used to illustrate a through hole in an embodiment of the present application.

[0019] Figure 3 It is a schematic diagram used to illustrate the filter plate and filter cartridge in the embodiment of the present application.

[0020] Figure 4 yes Figure 3 Enlarged view of point A in the middle.

[0021] Figure 5 It is a schematic diagram used to reflect the first water pipe, the second water pipe and the third water pipe in an embodiment of the present application.

[0022] Explanation of the reference numerals in the accompanying drawings: 1. water distribution pipe; 11. branch pipe; 12. through hole; 13. filter cloth; 2. water collection well; 21. filter plate; 22. filter cartridge; 23. screw cylinder; 231. stud; 24. countersunk hole; 3. sand and gravel layer; 4. activated carbon; 5. funnel; 51. first water pipe; 52. second water pipe; 53. third water pipe; 531. end cover; 5311. drain hole; 54. ring; 55. sealing gasket; 6. support plate; 61. core shaft; 62. cleaning brush. DETAILED DESCRIPTION

[0023] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific preferred embodiments.

[0024] In the description of the present invention, it should be understood that the terms "left side", "right side", "upper part", "lower part", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. "First", "second", etc. do not indicate the importance of the components, and therefore cannot be understood as a limitation on the present invention. The specific dimensions used in this embodiment are only for illustrating the technical solution, and do not limit the scope of protection of the present invention.

[0025] The present application embodiment discloses a rainwater collection and purification device for a sponge city. Figure 1 and Figure 2 The rainwater collection and purification device includes a water distribution pipe 1 and a water collection well 2 buried in the soil. The water distribution pipe 1 is connected to a plurality of parallel branch pipes 11. Each branch pipe 11 is provided with a plurality of through holes 12 arranged equidistantly along its length direction. The branch pipe 11 is wrapped with a filter cloth 13 for covering the through holes 12. The water distribution pipe 1 is connected to the water collection well 2.

[0026] like Figure 3 A filter plate 21 and two filter cartridges 22 are provided in the water collection well 2. The filter plate 21 has a plurality of filter holes. The outer peripheral wall of the filter plate 21 is in contact with the inner wall of the water collection well 2. A plurality of support plates 6 are vertically provided on the inner wall of the water collection well 2 and are equidistantly arranged along the circumferential direction of the axis of the filter plate 21. The filter plate 21 is supported on each support plate 6 and is located below the water distribution pipe 1.

[0027] A core shaft 61 is vertically provided on the filter plate 21, and a cleaning brush 62 is passed through the core shaft 61. The cleaning brush 62 can rotate around the core shaft 61, and the rotating area of ​​the cleaning brush 62 can cover all holes on the filter plate 21. The operator can brush out the debris blocked in the holes on the filter plate 21 by rotating the cleaning brush 62.

[0028] like Figure 3 and Figure 4One end of the filter cartridge 22 is open, and the other end is closed and has a plurality of holes. The two filter cartridges 22 are located below the filter plate 21 and are arranged at intervals in the vertical direction. A plurality of screw barrels 23 arranged circumferentially along the axis of each filter cartridge 22 are fixed at the bottom. A stud 231 is threadedly connected in each screw barrel 23. A countersunk hole 24 for inserting the stud 231 is opened on the inner wall of the water collection well 2. The stud 231 is inserted into the countersunk hole 24 to support and fix the filter cartridge 22.

[0029] like Figure 3 and Figure 5 A sand and gravel layer 3 is provided in the filter cartridge 22 located at the top, an activated carbon 4 is provided in the filter cartridge 22 located at the bottom, and a funnel 5 coaxially distributed therewith is fixed to the bottom of the filter cartridge 22, a circular ring 54 is fixed to the open end of the funnel 5, the circular ring 54 is fixed to the filter cartridge 22 by screws, and a sealing gasket 55 is provided between the circular ring 54 and the filter cartridge 22.

[0030] The narrow end of the funnel 5 faces downward and is connected to a first water pipe 51. The end of the first water pipe 51 away from the funnel 5 is horizontally connected to a second water pipe 52. The second water pipe 52 is vertically connected to a plurality of third water pipes 53 facing downward. The end of the third water pipe 53 is threadedly connected to an end cover 531. The end cover 531 is provided with a plurality of drainage holes 5311. Activated carbon 4 is arranged in the funnel 5, the first water pipe 51, the second water pipe 52 and the third water pipe 53.

[0031] Principle of the embodiment of the present application: rainwater is filtered by the filter cloth 13 and enters the branch pipe 11 through the through hole 12, and the rainwater in each branch pipe 1 is collected in the water distribution pipe 1, and then discharged into the water collection well 2 by the water distribution pipe 1; the rainwater discharged from the water distribution pipe 1 and the rainwater directly collected in the water collection well 2 are filtered through the filter plate 21, the gravel layer 3 and the activated carbon 4 layer by layer, and then fall into the water collection well 2 for storage, thereby realizing the collection and purification of rainwater, improving the cleanliness of the stored rainwater, and increasing the scope of direct utilization of rainwater.

[0032] It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as those generally understood by those skilled in the art to which this application belongs. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with the meanings in the context of the prior art, and will not be interpreted with idealized or overly formal meanings unless defined as herein.

[0033] The meaning of "and / or" described in this application means that the situations where each exists alone or both exist at the same time are included.

[0034] The term “connection” as used in this application may mean a direct connection between components or an indirect connection between components via other components.

Claims

1. A rainwater collection and purification device for a sponge city, characterized by: It comprises a water distribution pipe (1) and a water collection well (2) buried in soil, the water distribution pipe (1) being connected to a plurality of mutually parallel branch pipes (11), each of the branch pipes (11) being provided with a plurality of through holes (12) arranged at equal distances along its length direction, the branch pipes (11) being wrapped with filter cloth (13) for covering the through holes (12), and the water distribution pipe (1) being connected to the water collection well (2); The water collection well (2) is provided with a filter plate (21) and a filter cartridge (22), the filter cartridge (22) is located below the filter plate (21) and a sand and gravel layer (3) is provided in the filter cartridge (22), a plurality of screw barrels (23) arranged circumferentially along the axis of the filter cartridge (22) are fixed to the bottom of the filter cartridge (22), each screw barrel (23) is threadedly connected with a stud (231), and a countersunk hole (24) for inserting the stud (231) is provided on the inner wall of the water collection well (2).

2. The rainwater collection and purification device for sponge cities according to claim 1 is characterized in that: Two filter cartridges (22) are arranged in parallel and are distributed up and down; the sand and gravel layer (3) is arranged on the upper filter cartridge (22), and activated carbon (4) is arranged in the lower filter cartridge (22).

3. The rainwater collection and purification device for sponge cities according to claim 2 is characterized in that: A coaxially distributed funnel (5) is fixed to the bottom of the filter cartridge (22) below. The narrow end of the funnel (5) faces downward and is connected to a first water pipe (51). The end of the first water pipe (51) away from the funnel (5) is horizontally connected to a second water pipe (52). The second water pipe (52) is vertically connected to a plurality of third water pipes (53) facing downward. The end of the third water pipe (53) is threadedly connected to an end cap (531). The end cap (531) is provided with a plurality of drainage holes (5311). Activated carbon (4) is provided in the funnel (5), the first water pipe (51), the second water pipe (52) and the third water pipe (53).

4. The rainwater collection and purification device for sponge cities according to claim 3 is characterized in that: A circular ring (54) is fixed to the open end of the funnel (5), and the circular ring (54) is fixed to the filter cartridge (22) by means of screws.

5. The rainwater collection and purification device for sponge cities according to claim 4 is characterized in that: A sealing gasket (55) is provided between the circular ring (54) and the filter cartridge (22).

6. The rainwater collection and purification device for sponge cities according to claim 1 is characterized in that: The inner wall of the water collection well (2) is provided with a plurality of supporting plates (6) for supporting the filter plate (21), a core shaft (61) is vertically provided on the filter plate (21), and a cleaning brush (62) is passed through the core shaft (61).

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