Water purification drainage ditch and ecological drainage structure of parking lot

Abstract

The utility model discloses a water purification drainage ditch which comprises a ditch body, a partition plate is arranged in the ditch body and divides the ditch body into a water purification ditch and a water collection ditch, a grate is arranged above the water purification ditch, and a closed well lid is arranged above the water collection ditch. A filter layer and a water storage module for supporting the filter layer are arranged in the water purification ditch; the partition plate is provided with a plurality of water collecting openings in one side of the water storage module, rainwater is discharged into a water collecting ditch from the water collecting openings after being purified by the filter layer and the water storage module, the water collecting ditch is connected with an external water collecting pool, and the purified rainwater is further collected and utilized. The utility model further discloses an ecological drainage structure of the parking lot, and the water purification drainage ditch is installed on one side of a plurality of parking spaces. The ecological drainage structure can be transformed on the premise of not changing the functions and loads of the existing parking lot, and purification, discharge and utilization of rainfall in the parking lot are achieved functionally.

Description

TECHNICAL FIELD

[0001] The utility model relates to sponge city construction technical field, concretely is a kind of water purification drainage ditch and parking lot ecological drainage structure. BACKGROUND

[0002] Sponge city is a new generation of urban rainwater management concept, which refers to the city's good "elasticity" in adapting to environmental changes and coping with natural disasters caused by rainwater.Parking lot construction is an important part of urban construction, and there are a large number of ground parking lots at the present stage, most of which are non-ecological hardening ground parking lots, which are important sources of urban non-point source pollution.

[0003] Ecological parking lot is a concept that combines parking space and landscape space organically to create a parking lot with optimal rainwater organization, high greening, high load capacity and sustainable management.Most of the current ecological parking lots use plant bricks and plant grids for surface paving, which reduces the physical load of the parking lot, and the rainwater purification effect is greatly affected by the growth of plants, and in the ecological reconstruction of existing parking lots, there are problems such as high reconstruction difficulty and cost, which cannot be widely used. UTILITY MODEL CONTENT

[0004] The utility model aims to provide a kind of water purification drainage ditch and parking lot ecological drainage structure, to carry out the reconstruction of ecological drainage structure under the premise of not changing the function and load of existing parking lot, realize the purification, discharge and utilization of rainfall in parking lot.To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model discloses a kind of water purification drainage ditches, comprising: ditch body, the ditch body is provided with partition plate and is divided into water purification ditch and water collection ditch, the water purification ditch is provided with grating above, the water collection ditch is provided with closed well lid above.

[0006] The water purification ditch is provided with filter layer and water storage module, and the water storage module is arranged below the filter layer to support the filter layer.

[0007] The partition plate is provided with a plurality of water collection openings on one side of the water storage module, and rainwater is discharged into the water collection ditch from the water collection openings after being purified by the filter layer and the water storage module, and the water collection ditch is connected with an external water collection tank.

[0008] Among them, the water purification drainage ditch is installed obliquely to discharge rainwater in the water collection ditch into an external water collection tank.

[0009] Preferably, the inclination of the water purification drainage ditch is 1 ‰.

[0010] Further, the groove body is provided with a cover body support seat, and the grating and the closed well cover are placed above the cover body support seat and the partition plate.

[0011] Further, a buffer space is arranged between the grating and the filter layer to temporarily store unfiltered rainwater.

[0012] Preferably, the partition plate is provided with a plurality of overflow ports on one side of the buffer space to shunt rainwater in the buffer space.

[0013] Preferably, the filter layer comprises zeolite filler and water-permeable geotextile wrapped outside the zeolite filler.

[0014] Preferably, the groove body is a concrete groove body, and the partition plate is a concrete plate.

[0015] Preferably, the grating is a cast iron grating.

[0016] Further, the utility model discloses a parking lot ecological drainage structure, which comprises a plurality of parking spaces and the water purification drainage ditch installed on one side of the parking space.

[0017] After the above technical scheme is adopted, the utility model has the following effects:

[0018] The utility model adopts the water purification drainage ditch to replace the traditional grass planting brick, grass planting grid and other surface layer pavement, and is simple to operate, and will not reduce the bearing load of the parking lot, and is suitable for most existing ground parking lots. Meanwhile, the utility model can carry out the reconstruction of the ecological drainage structure without changing the function and load of the existing parking lot, realizes the purification, discharge and utilization of the rainfall in the parking lot from the function, improves the total runoff control rate, runoff pollution reduction rate and rainwater comprehensive recycling rate of the ground parking lot, and is suitable for the construction of the sponge city and the field of urban non-point source pollution treatment. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a three-dimensional structure diagram of the utility model parking lot ecological drainage structure.

[0020] Figure 2 It is a cross-sectional structure diagram of the utility model water purification drainage ditch.

[0021] Main component symbol:

[0022] 1: parking space, 2: water purification and drainage ditch, 21: ditch body, 22: cover support seat, 23: partition plate, 231: water collecting port, 232: overflow port, 24: water purification ditch, 25: water collecting ditch, 26: grating, 27: closed well lid, 28: filter layer, 29: water storage module, 3: water collecting pool. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will be further described in detail in combination with the drawings and examples.

[0024] As shown in Figure 1 and Figure 2 The utility model discloses a water purification and drainage ditch, which comprises a ditch body 21, a partition plate 23 is arranged in the ditch body 21 to divide the ditch body 21 into a water purification ditch 24 and a water collecting ditch 25, the width of the water purification ditch 24 and the water collecting ditch 25 is about 0.35 meters, the depth is about 0.7 meters, and the cross section is rectangular. The water purification ditch 24 is provided with a grating 26 above, which is used for large-particle impurities in rainwater, including leaves, stones and the like; and the water collecting ditch 25 is provided with a closed well lid 27 above.

[0025] In the embodiment, the ditch body 21 is provided with a cover support seat 22, and the grating 26 and the closed well lid 27 are placed above the cover support seat 22 and the partition plate 23. The ditch body 21 is a concrete ditch body, the outer wall thickness is about 0.1 meters, the partition plate 23 is a concrete plate, the thickness is about 0.1 meters, and the grating 26 is a cast iron grating.

[0026] The water purification ditch 24 is provided with a filter layer 28 and a water storage module 29, and the water storage module 29 is arranged below the filter layer 28 to support the filter layer 28. In the embodiment, the filter layer is about 0.25 meters high, and the filter layer 28 comprises zeolite filler and water-permeable geotextile wrapped outside the zeolite filler, wherein the specification of the geotextile is 300g / m2, and the particle size of the zeolite filler is 8-16mm. After rainwater is filtered through the filter layer 28, the rainwater enters the water storage module 29, and the water storage module 29 is about 0.2 meters high.

[0027] The partition plate 23 is provided with a plurality of water collecting ports 231 on one side of the water storage module 29, the diameter of the water collecting ports 231 is not less than 50mm, rainwater is discharged into the water collecting ditch 25 from the water collecting ports 231 after being purified through the filter layer 28 and the water storage module 29, the water collecting ditch 25 is connected with an external water collecting pool 3, and the rainwater after purification is further collected and utilized. The water in the water collecting pool can be used for comprehensive utilization such as road sprinkling and greening irrigation, and the excess rainwater can be discharged into a municipal rainwater system.

[0028] Furthermore, in this embodiment, a buffer space is provided between the grate 26 and the filter layer 28 to temporarily store unfiltered rainwater. Meanwhile, the partition plate 23 has several overflow ports 232 on one side of the buffer space, each overflow port 232 having a diameter of not less than 70 mm, to divert rainwater from the buffer space.

[0029] The working principle of this utility model's water purification and drainage ditch 2 is as follows: During light rain or the initial stage of rainfall, rainwater is directly discharged into the water purification ditch 24, where it slowly infiltrates and is filtered in the filter layer 28 before being discharged into the collection ditch 25. During heavy rain, the rainwater cannot infiltrate in time and is temporarily stored in the buffer space between the grate 26 and the filter layer 28, where it slowly infiltrates and is filtered. However, since the rainwater, which was heavily polluted during the initial stage of rainfall, has already been purified, the rainwater during the middle and later stages of rainfall is relatively clean and can be directly discharged into the collection ditch. Therefore, the temporarily stored rainwater can be directly discharged into the collection ditch from the overflow outlet and then flow to an external collection pool for collection and utilization.

[0030] When using this invention, the grate 26 needs to be cleaned regularly to prevent large particles from clogging the drainage system. Secondly, the zeolite packing in the filter layer 28 also needs to be cleaned regularly, and the permeable geotextile should be replaced. The cleaning cycle for the grate 26, filter layer 28, and other related components can be determined based on the rainfall frequency, but cleaning once every 1-3 months is generally optimal.

[0031] Furthermore, this utility model also discloses an ecological drainage structure for a parking lot, including: several parking spaces 1 and a clean water drainage ditch 2 installed on one side of the parking space 1. In this embodiment, the clean water drainage ditch 2 is installed at an angle at the front end of the parking space 1 to drain rainwater from the collection ditch 25 into an external collection pool 3. A slope is provided between the parking space 1 and the clean water drainage ditch 2 to guide rainwater from the parking space 1 into the clean water drainage ditch 2. The slope of the clean water drainage ditch 2 is 1‰, and the slope between the parking space 1 and the clean water drainage ditch 2 is also 1‰.

[0032] The above description is only a preferred embodiment of the present utility model. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A water-cleaning drain, characterized by The utility model relates to a kind of water purification and drainage ditch, including: The gutter body (21) is provided with partition plate (23) in the gutter body (21) The gutter body (21) is divided into clean water ditch (24) and water collecting ditch (25), the clean water ditch (24) is provided with grating (26) above, the water collecting ditch (25) is provided with closed well lid (27) above; Filter layer (28) and water storage module (29) are provided in the clean water ditch (24), and the water storage module (29) is arranged below the filter layer (28) to support the filter layer (28); The partition plate (23) is provided with a plurality of water collecting ports (231) on one side of the water storage module (29), and rainwater is discharged into the water collecting ditch (25) from the water collecting ports (231) after being purified by the filter layer (28) and the water storage module (29), and the water collecting ditch (25) is connected with an external water collecting tank (3).

2. A water purifying drain according to claim 1, wherein: The water purification and drainage ditch (2) is installed obliquely to discharge rainwater in the water collecting ditch (25) into the external water collecting tank (3).

3. A water purifying drain according to claim 2, wherein: The inclination of the water purification and drainage ditch (2) is 1 ‰.

4. A water purifying drain according to claim 1, wherein: The gutter body (21) is provided with a cover support seat (22), and the grating (26) and the closed well lid (27) are placed above the cover support seat (22) and the partition plate (23).

5. A water purifying drain according to claim 1, wherein: A buffer space is provided between the grating (26) and the filter layer (28) to temporarily store unfiltered rainwater.

6. A water-cleaning drain according to claim 5, wherein: The partition plate (23) is provided with a plurality of overflow ports (232) on one side of the buffer space to shunt rainwater in the buffer space.

7. A water purifying drain according to claim 1, wherein: The filter layer (28) includes zeolite filler and water-permeable geotextile wrapped outside the zeolite filler.

8. A water purifying drain according to claim 1, wherein: The gutter body (21) is a concrete gutter body, and the partition plate (23) is a concrete plate.

9. A water purifying drain according to claim 1, wherein: The grating (26) is a cast iron grating.

10. A parking lot eco-drainage structure, characterized by, The utility model relates to a kind of water purification and drainage ditch, including: A plurality of parking spaces (1) and the water purification and drainage ditch (2) installed on one side of the parking space (1) as claimed in any one of claims 1-9 are provided; The water purification and drainage ditch (2) is installed at the front end of the parking space (1), and a slope is provided between the parking space (1) and the water purification and drainage ditch (2) to guide rainwater in the parking space (1) into the water purification and drainage ditch (2), and the inclination of the slope between the parking space (1) and the water purification and drainage ditch (2) is 1 ‰.

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