Sewage filtering equipment based on sponge city system

Abstract

The utility model belongs to the technical field of filtering equipment, and particularly relates to sewage filtering equipment based on a sponge city system, which comprises a road and drainage channels arranged on two sides of the road, a plurality of drainage ports distributed at equal intervals are reserved on the surface of each drainage channel, and filtering components are arranged in the drainage ports. The filter assembly comprises a filter cartridge main body, annularly distributed drainage holes are formed in the lower side wall of the filter cartridge main body, and the diameter of the drainage holes is smaller than that of quartz sand; rainwater is filtered layer by layer through the sponge structure layer, the filtered rainwater enters the drainage channel through the drainage port, the problem that blockage is prone to being caused after sundries enter a traditional urban sewage well is solved, urban waterlogging caused by rainfall is relieved, and after the filtering assembly is used for a long time, the filtering effect is good. And the filter cartridge main body can be taken out to replace or wash the sponge structure layer, so that permeated impurities are removed, the filtering effect is kept for a long time, and cyclic utilization is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of filtering equipment, in particular to sewage filtering equipment based on a sponge city system. Background Art

[0002] A sponge city refers to a city that is able to adapt to environmental changes and cope with natural disasters caused by rainwater, just like a sponge. It is a new generation of urban stormwater management concept and can also be called a "water-elastic city."

[0003] The pavement structure of traditional cities usually uses sewage wells to collect sewage. However, the contents of the collected sewage are complex and can easily cause blockage in the sewage wells, resulting in urban waterlogging.

[0004] The existing Chinese patent with announcement number CN220057519U discloses a sponge city pavement structure, which belongs to the field of pavement structure. The sponge city pavement structure includes: a drainage cylinder, which is provided with a plurality of drainage holes, and the plurality of drainage holes are located on the upper side of the drainage cylinder; two waterproof boards, which are respectively arranged on both sides of the drainage cylinder, and the two waterproof boards are provided with curbstones, and the curbstones on the two waterproof boards, the two waterproof boards, and the drainage cylinder are enclosed to form a groove, and the plurality of drainage holes are located on the side of the drainage cylinder close to the groove; a sponge structure layer, which is arranged in the groove. Rainwater flows into the groove enclosed by the curbstone, the waterproof board, and the drainage cylinder.

[0005] In view of the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: the device filters rainwater layer by layer through a sponge structure layer, and impurities penetrate into the sponge structure layer after long-term use, which makes it inconvenient to clean and needs to be improved; therefore, in view of the above problems, a sewage filtration device based on a sponge city system is proposed. Utility Model Content

[0006] In order to make up for the deficiencies of the prior art and solve the above-mentioned technical problems, the utility model proposes a sewage filtering device based on a sponge city system.

[0007] The technical solution adopted by the utility model to solve its technical problems is: the sewage filtering equipment based on the sponge city system described in the utility model includes a road and a drainage channel installed on both sides of the road, the surface of the drainage channel is reserved with a plurality of equally distributed drainage outlets, a filter assembly is installed inside the drainage outlet, the filter assembly includes a filter cartridge body, the lower side wall of the filter cartridge body is provided with drainage holes distributed in an annular shape, the diameter of the drainage holes is smaller than quartz sand, the filter cartridge body is plugged into the inside of the filter cartridge body, a sponge structure layer is installed inside the filter cartridge body, the sponge structure layers are sequentially composed of a fine filtration layer, a coarse filtration layer and a planting layer from bottom to top, connecting the drainage channel with an external rainwater storage device Collect filtered rainwater. When it rains, rainwater on the road flows into the drainage ditch and enters the interior of the filter cartridge body through the drainage port, and the rainwater is filtered through the sponge structure layer. Large impurities on the surface of the rainwater will be blocked by the planting layer, and then roughly processed by the coarse filter layer, and finally further filtered by the fine filter layer. The filtration speed is faster, and the rainwater and sewage are collected more cleanly. The filtered rainwater enters the drainage ditch through the drainage port, which solves the problem that traditional urban sewage wells are easily blocked by debris, alleviates urban waterlogging caused by precipitation, and after the filter component has been used for a long time, the filter cartridge body can be taken out to replace or rinse the sponge structure layer to remove the infiltrated impurities, maintain the filtration effect for a long time, and achieve recycling.

[0008] Preferably, the top height of the filter cartridge body is at the same level as the top height of the drainage channel.

[0009] Preferably, the fine filter layer is made of quartz sand.

[0010] Preferably, the coarse filter layer is made of pebbles.

[0011] Preferably, a handle is symmetrically fixedly connected to the top of the filter cartridge body, and the handle is convenient for taking out the filter cartridge body.

[0012] Preferably, the filter assembly further comprises an intercepting net and a limiting convex layer, the limiting convex layer is fixedly mounted on both sides of the top of the drainage channel, and a positioning opening is provided on the surface of the limiting convex layer.

[0013] Preferably, positioning columns are fixedly connected to both sides of the interception net, and the central area of ​​the interception net is arranged in an arc shape. The flowing garbage on the drainage channel is intercepted by the interception net. When installing the interception net, the outer arc surface of the interception net is installed in line with the flow direction of the water flow, so that the intercepted garbage is kept on both sides of the interception net under the impact of the water flow, avoiding the garbage from blocking the interception net as a whole. The positioning columns are inserted into the fixed interception net at the positioning port, which is convenient for disassembly and assembly.

[0014] Preferably, water baffle plate 1 and water baffle plate 2 are symmetrically fixedly connected to the top of the drainage ditch, water baffle plate 1 is higher than water baffle plate 2, water baffle plate 2 is installed on the side of the drainage ditch close to the road, and the top height of water baffle plate 2 is lower than or equal to the top surface height of the road, and rainwater is intercepted in the drainage ditch by water baffle plate 1 and water baffle plate 2 and waits for filtration by the filter assembly.

[0015] Preferably, the filter cartridge body is composed of a fine filter cartridge, a coarse filter cartridge and a planting cartridge from bottom to top, and the fine filter cartridge, the coarse filter cartridge and the planting cartridge are combined through a threaded connection. The filter cartridge body is formed by the combination of the fine filter cartridge, the coarse filter cartridge and the planting cartridge. When cleaning, the sponge structure layers can be split and poured out in turn for cleaning to avoid large amounts of mixing of the sponge structure layers.

[0016] Preferably, the surfaces of the planting tube and the coarse filtration tube are respectively provided with flow holes and coarse filtration holes, the flow holes are larger than the coarse filtration holes, and the coarse filtration holes are smaller than pebbles, and the flow holes and coarse filtration holes are used for rainwater flow, while respectively blocking the planting layer and the coarse filtration layer accordingly.

[0017] The utility model is beneficial in that:

[0018] 1. The utility model filters rainwater layers through a sponge structure layer, and the filtered rainwater enters the drainage channel through the drain port, which solves the problem that traditional urban sewage wells are easily blocked by debris, alleviates urban waterlogging caused by precipitation, and after the filter component is used for a long time, the filter cartridge body can be taken out to replace or rinse the sponge structure layer to remove the infiltrated impurities, maintain the filtering effect for a long time, and realize recycling.

[0019] 2. The filter cartridge body of the utility model is formed by combining a fine filter cartridge, a coarse filter cartridge and a planting cartridge. When cleaning, the cartridges can be disassembled in sequence and the sponge structure layer can be poured out for cleaning to avoid mixing when the sponge structure layer is poured out. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the internal structure of the drainage channel of the utility model;

[0023] Figure 3 This is a cross-sectional view of the main body of the filter cartridge of the utility model;

[0024] Figure 4 For this utility model Figure 3 A structural diagram of ;

[0025] Figure 5 This is a schematic diagram of the expanded structure of the filter cartridge body of the utility model.

[0026] In the figure: 1. Road; 2. Drainage channel; 3. Drainage outlet; 4. Filter assembly; 41. Filter cartridge body; 42. Sponge structure layer; 43. Handle; 44. Intercepting net; 45. Limiting convex layer; 46. Positioning port; 47. Positioning column; 48. Drainage hole; 411. Fine filter cartridge; 412. Coarse filter cartridge; 413. Planting cartridge; 414. Circulation hole; 415. Coarse filter hole; 421. Fine filter layer; 422. Coarse filter layer; 423. Planting layer; 5. Water retaining board one; 6. Water retaining board two. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Example 1: Please refer to Figure 1-4As shown, a sewage filtering device based on a sponge city system includes a road 1 and a drainage channel 2 installed on both sides of the road 1. The surface of the drainage channel 2 is reserved with a plurality of equally spaced drainage outlets 3. A filter assembly 4 is installed inside the drainage outlet 3. The filter assembly 4 includes a filter cartridge body 41. The lower side wall of the filter cartridge body 41 is provided with drainage holes 48 distributed in an annular shape. The diameter of the drainage holes 48 is smaller than that of quartz sand. The filter cartridge body 41 is plugged into the interior of the filter cartridge body 41. A sponge structure layer 42 is installed inside the filter cartridge body 41. The sponge structure layer 42 is composed of a fine filter layer 421, a coarse filter layer 422 and a planting layer 423 from bottom to top. The drainage channel 2 is connected to an external rainwater storage device to collect filtered rainwater. When it rains, the road Rainwater on road 1 flows into drainage channel 2, enters the interior of filter cartridge body 41 through drainage port 3, and is filtered by sponge structure layer 42. Large impurities on the surface of rainwater are blocked by planting layer 423, and then are roughly processed by coarse filter layer 422, and finally are further filtered by fine filter layer 421. The filtering speed is faster, and rainwater and sewage are collected more cleanly. The filtered rainwater enters drainage channel 2 through drainage port 3, which solves the problem that traditional urban sewage wells are easily blocked by debris, alleviates urban waterlogging caused by precipitation, and after long-term use of filter assembly 4, the filter cartridge body 41 can be taken out to replace or rinse the sponge structure layer 42 to remove infiltrated impurities, maintain the filtering effect for a long time, and realize recycling.

[0029] The top of the filter cartridge body 41 is at the same level as the top of the drainage channel 2 .

[0030] The fine filter layer 421 is made of quartz sand.

[0031] The coarse filter layer 422 is made of pebbles.

[0032] A handle 43 is symmetrically fixedly connected to the top of the filter cartridge body 41 , and the handle 43 is convenient for taking out the filter cartridge body 41 .

[0033] The filter assembly 4 further includes an intercepting net 44 and a limiting convex layer 45 . The limiting convex layer 45 is fixedly mounted on both sides of the top of the drainage channel 2 . A positioning opening 46 is formed on the surface of the limiting convex layer 45 .

[0034] Positioning columns 47 are fixedly connected to both sides of the interception net 44. The central area of ​​the interception net 44 is set to an arc shape. The interception net 44 is used to intercept the flowing garbage on the drainage channel 2, and the large garbage is intercepted. When used in conjunction with the sponge structure layer 42, when installing the interception net 44, the outer arc surface of the interception net 44 is installed in line with the flow direction of the water flow, so that the intercepted garbage is kept on both sides of the interception net 44 under the impact of the water flow, avoiding the garbage from blocking the interception net 44 as a whole. The positioning columns 47 are inserted into the fixed interception net 44 of the positioning port 46, which is easy to disassemble and assemble.

[0035] The top of the drainage ditch 2 is symmetrically fixedly connected with water baffle plate 1 5 and water baffle plate 2 6. Water baffle plate 1 5 is higher than water baffle plate 2 6. Water baffle plate 2 6 is installed on the side of the drainage ditch 2 close to the road 1, and the top height of water baffle plate 2 6 is lower than or equal to the top surface height of the road 1. Rainwater is intercepted in the drainage ditch 2 by water baffle plate 1 5 and water baffle plate 2 6 and waits for filtering by the filter component 4.

[0036] Example 2: For comparison with Example 1, please refer to Figure 5 As shown, the utility model provides another embodiment, the filter cartridge body 41 is composed of a fine filter cartridge 411, a coarse filter cartridge 412 and a planting cartridge 413 from bottom to top, and the fine filter cartridge 411, the coarse filter cartridge 412 and the planting cartridge 413 are combined by threaded connection, and the filter cartridge body 41 is formed by the fine filter cartridge 411, the coarse filter cartridge 412 and the planting cartridge 413. When cleaning, the sponge structure layer 42 can be split and poured out in turn for cleaning to avoid mixing when the sponge structure layer 42 is poured.

[0037] A circulation hole 414 and a coarse filtering hole 415 are respectively formed on the surfaces of the planting cylinder 413 and the coarse filtering cylinder 412. The circulation hole 414 is larger than the coarse filtering hole 415, and the coarse filtering hole 415 is smaller than the pebbles.

[0038] Working principle: connect the drainage channel 2 with the external rainwater storage device to collect filtered rainwater. When it rains, rainwater on the road 1 flows into the drainage channel 2, enters the interior of the filter cartridge body 41 through the drainage port 3, and filters the rainwater layer by layer through the sponge structure layer 42. Large impurities on the surface of the rainwater will be blocked by the planting layer 423, and then roughly processed by the coarse filter layer 422, and finally further filtered by the fine filter layer 421. The filtration speed is faster, and the rainwater and sewage are collected more cleanly. The filtered rainwater enters the drainage channel 2 through the drainage port 3, which solves the problem that traditional urban sewage wells are easily blocked by debris, alleviates urban waterlogging caused by precipitation, and after the filter component 4 is used for a long time, the filter cartridge body 41 can be taken out to replace or rinse the sponge structure layer 42 to remove the infiltrated impurities, maintain the filtration effect for a long time, and realize recycling.

[0039] The flowing garbage on the drainage channel 2 is intercepted by the interception net 44. When installing the interception net 44, the outer arc surface of the interception net 44 is aligned with the flow direction of the water flow, so that the intercepted garbage is kept on both sides of the interception net 44 under the impact of the water flow, avoiding the garbage from blocking the interception net 44 as a whole. The positioning column 47 is inserted into the positioning port 46 to fix the interception net 44, which is easy to disassemble and assemble.

[0040] The filter cartridge body 41 is formed by combining a fine filter cartridge 411 , a coarse filter cartridge 412 and a planting cartridge 413 . When cleaning, the sponge structure layer 42 can be sequentially split and poured out for cleaning to avoid mixing when the sponge structure layer 42 is poured out.

[0041] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0042] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A sewage filtration device based on a sponge city system, comprising a road (1) and drainage channels (2) installed on both sides of the road (1), characterized in that: The surface of the drainage channel (2) is reserved with a plurality of equally spaced drainage openings (3), the drainage openings (3) are internally installed with a filter assembly (4), the filter assembly (4) comprising a filter cartridge body (41), the lower side wall of the filter cartridge body (41) being provided with drainage holes (48) distributed in an annular shape, the filter cartridge body (41) being plugged into the interior of the filter cartridge body (41), the filter cartridge body (41) being internally installed with a sponge structure layer (42), the sponge structure layer (42) being sequentially composed of a fine filtration layer (421), a coarse filtration layer (422) and a planting layer (423) from bottom to top.

2. The sewage filtration equipment based on the sponge city system according to claim 1 is characterized in that: The top height of the filter cartridge body (41) is at the same level as the top height of the drainage channel (2).

3. The sewage filtration equipment based on the sponge city system according to claim 1 is characterized in that: The fine filter layer (421) is made of quartz sand.

4. The sewage filtration equipment based on the sponge city system according to claim 1 is characterized in that: The coarse filter layer (422) is made of pebbles.

5. The sewage filtration equipment based on the sponge city system according to claim 1 is characterized in that: A handle (43) is symmetrically fixedly connected to the top of the filter cartridge body (41).

6. The sewage filtration equipment based on the sponge city system according to claim 1 is characterized in that: The filter assembly (4) further comprises an intercepting net (44) and a limiting convex layer (45), wherein the limiting convex layer (45) is fixedly mounted on both sides of the top of the drainage channel (2), and a positioning opening (46) is provided on the surface of the limiting convex layer (45).

7. The sewage filtration equipment based on the sponge city system according to claim 6 is characterized in that: Positioning columns (47) are respectively fixedly connected to both sides of the interception net (44), and the central area of ​​the interception net (44) is arranged in an arc shape.

8. The sewage filtration equipment based on the sponge city system according to claim 1 is characterized in that: The top of the drainage channel (2) is symmetrically fixedly connected with a water baffle plate 1 (5) and a water baffle plate 2 (6); the water baffle plate 1 (5) is higher than the water baffle plate 2 (6); the water baffle plate 2 (6) is installed on a side of the drainage channel (2) close to the road (1); and the top height of the water baffle plate 2 (6) is lower than or equal to the top surface height of the road (1).

9. The sewage filtration equipment based on the sponge city system according to claim 1 is characterized in that: The filter cartridge body (41) is composed of a fine filter cartridge (411), a coarse filter cartridge (412), and a planting cartridge (413) from bottom to top, and the fine filter cartridge (411), the coarse filter cartridge (412), and the planting cartridge (413) are combined through a threaded connection.

10. The sewage filtration equipment based on the sponge city system according to claim 9 is characterized in that: The surfaces of the planting cylinder (413) and the coarse filtering cylinder (412) are respectively provided with a circulation hole (414) and a coarse filtering hole (415).

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