CN215715833U

CN215715833U - Double-filtering system for concave greenbelt in sponge city

Info

Publication number: CN215715833U
Application number: CN202121407123.9U
Authority: CN
Inventors: 祝叶; 曹鹏; 镇淑娟; 黄巧瑜; 宋岳洋
Original assignee: Zhuhai Huafa Architectural Design Consulting Co Ltd; Zhuhai Huafa Group Co Ltd
Current assignee: Zhuhai Huafa Architectural Design Consulting Co Ltd; Zhuhai Huafa Group Co Ltd
Priority date: 2021-06-23
Filing date: 2021-06-23
Publication date: 2022-02-01
Anticipated expiration: 2031-06-23

Abstract

The utility model relates to a double-filtering system for concave greenbelts in sponge cities, which belongs to the field of filtering and comprises a concave greenbelt capable of naturally permeating, an overflow well and a rainwater filtering device, wherein the water inlet end of the rainwater filtering device is communicated with the overflow well through an overflow pipe, and the outlet of the rainwater filtering device is communicated with a collecting pool through a conveying pipe; the overflow well is positioned in the middle of the concave green land, the water inlet well mouth of the overflow well is positioned at the bottom or inside the reservoir of the concave green land and communicated with the reservoir, and the rainwater filtering device is positioned below the concave green land. Through setting up overflow well and rainwater filter equipment, just can solve the problem that the waterlogging appears when rainfall is great.

Description

Double-filtering system for concave greenbelt in sponge city

Technical Field

The utility model relates to the field of filtration, in particular to a double-filtration system for concave green land in a sponge city.

Background

The sponge city refers to a city which can have good elasticity in the aspects of adapting to environmental changes and natural disasters caused by corresponding rainwater like a sponge, and a concave green land is a way for constructing the sponge city and is represented as a height lower than that of a peripheral public green land, also called a low-potential green land. The flower bed is contrary to a flower bed, the concept is that rainwater is received and stored by utilizing an open space, the runoff drainage is reduced, generally speaking, a low-potential green land has certain requirements on the concave depth, and the soil quality is not improved. Compared with the line shape of a vegetation shallow trench, the vegetation shallow trench mainly has the advantages that the surface can receive more rainwater, and the plants in the vegetation shallow trench are mainly made of native herbs.

But recessed greenery patches adopt the natural infiltration method to the filtration mode of rainwater, and then alleviate flood pressure through extension rainwater infiltration time, and simple structure, this will lead to when rainfall is great in summer, and unnecessary rainwater can't be discharged fast, the phenomenon of waterlogging appears.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a double-filtration system for a concave green land in a sponge city, which solves the problem of waterlogging when the rainfall is large.

The technical scheme of the utility model is realized as follows:

the utility model provides a double-filtering system for concave greenbelts in sponge cities, which comprises a concave greenbelt capable of naturally permeating, an overflow well and a rainwater filtering device, wherein the water inlet end of the rainwater filtering device is communicated with the overflow well through an overflow pipe, and the outlet of the rainwater filtering device is communicated with a collecting pool through a conveying pipe; the overflow well is located the intermediate position of recessed greenery patches, the well mouth of intaking of overflow well is located the cistern bottom or inside of recessed greenery patches, and with the cistern is linked together, rainwater filter equipment is located the below of recessed greenery patches.

The preferable technical scheme of the utility model is that an overflow cavity is arranged in the overflow well, the overflow cavity is communicated with the reservoir through the water inlet well mouth, and the overflow cavity is communicated with the overflow pipe.

The utility model also comprises a well cover, wherein the well cover is matched with the water inlet well mouth and is detachably connected with the overflow well.

The preferable technical proposal of the utility model is that the utility model also comprises a sewage draining pipe; the rainwater filtering device is also provided with a drain outlet, one end of the drain pipe is communicated with the drain outlet and is connected with the rainwater filtering device, and the other end of the drain pipe is communicated with the sewage filtering device.

The utility model has the preferable technical scheme that a filter screen is arranged at the output port, the filter screen is positioned in the conveying pipe, and the filter screen is fixedly arranged on the rainwater filtering device.

The utility model also comprises a fine sand filter layer and a gravel cushion layer, wherein the fine sand filter layer is positioned above the gravel cushion layer, and the fine sand filter layer and the gravel cushion layer are both positioned below the concave green land.

The preferable technical scheme of the utility model is that the gravel cushion further comprises a water collecting layer, wherein the water collecting layer is positioned at the bottom of the gravel cushion and is communicated with the collecting tank through a main water collecting pipe.

The preferable technical scheme of the utility model is that the middle part of the water collecting layer is provided with a water collecting tank, the top of the water collecting layer is uniformly provided with water through holes, and a plurality of the water through holes are communicated with the water collecting tank; the bottom of the water collecting layer is provided with a plurality of water collecting pipes, one ends of the water collecting pipes are communicated with the water collecting grooves, and the other ends of the water collecting pipes are communicated with the main water collecting pipe.

The utility model has the beneficial effects that: the rainwater filtering device is arranged below the overflow well and the concave greenbelt, wherein the overflow well is communicated with the rainwater filtering device through the overflow pipe, when the concave greenbelt meets a period of large rainfall in summer, rainwater is collected into the water storage tank of the concave greenbelt and then enters the overflow well, and then the rainwater filtering device is used for filtering and purifying, so that the rainwater meets the use standard, and finally the rainwater is conveyed to the collecting tank through the conveying pipe to be collected. Consequently, when summer produces great rainfall, realize dredging fast through the overflow well, alleviate flood pressure's purpose, solve the problem that produces the waterlogging, and the rainwater that enters into the overflow well passes through rainwater filter equipment and realizes the utilization to the rainwater, reaches the outer effect of arranging of reduction runoff.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic view of the utility model;

fig. 2 is a schematic structural view of a water collection layer in the utility model.

The reference numerals in the figures are explained below:

1. concave greenery patches; 11. a reservoir; 2. an overflow well; 21. a water inlet wellhead; 22. an overflow chamber; 23. a well cover; 3. a rainwater filtration device; 31. an output port; 32. a sewage draining outlet; 33. a filter screen; 4. an overflow pipe; 5. a delivery pipe; 6. a blow-off pipe; 7. a fine sand filtration layer; 8. a gravel cushion layer; 9. a water collection layer; 91. a water collection tank; 92. a water through hole; 93. a water collection pipe; 10. a main header.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," "fourth," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Fig. 1 shows a specific embodiment of a double-filtration system for a concave green land in a sponge city provided by the utility model, which comprises a concave green land 1 capable of naturally permeating, an overflow well 2 and a rainwater filtration device 3, wherein the water inlet end of the rainwater filtration device 3 is communicated with the overflow well 2 through an overflow pipe 4, and the outlet 31 of the rainwater filtration device 3 is communicated with a collection pool through a delivery pipe 5; the overflow well 2 is positioned in the middle of the concave green land 1, the water inlet well mouth 21 of the overflow well 2 is positioned at the bottom or inside the reservoir 11 of the concave green land 1 and is communicated with the reservoir 11, and the rainwater filtering device 3 is positioned below the concave green land 1. Specifically, the collecting pit is the rainwater through the natural infiltration of recessed greenery patches or through the place that collects after rainwater filter equipment 3 carries out filtration purification, then when recessed greenery patches 1 meet the great period of summer rainfall down, the rainwater collects in recessed greenery patches 1's cistern 11, then enter into overflow well 2 inside, preferentially, 2 inside can set up at least one filter screen of overflow well, with to recessed greenery patches 1 or subaerial discarded object, large-scale rubbish such as withered leaf carry out the prefilter, rainwater through the prefilter enters into rainwater filter equipment 3 through overflow pipe 4 and carries out secondary filter and purification, make the rainwater reach and accord with the standard that accords with the use, collect in the collecting pit through conveyer pipe 5 at last. Consequently, when summer produces great rainfall, realize dredging fast through overflow well 2, alleviate flood pressure's purpose, solve the problem that produces the waterlogging, and the rainwater that enters into overflow well 2 passes through rainwater filter equipment 3 and realizes the utilization to the rainwater, reaches the outer effect of arranging of reduction runoff.

As a preferred embodiment of the present application, as shown in fig. 1, an overflow chamber 22 is provided inside the overflow well 2, the overflow chamber 22 is communicated with the reservoir 11 through a water inlet well head 21, and the overflow chamber 22 is communicated with the overflow pipe 4. The excessive rainwater enters the overflow cavity 22 of the overflow well 2 through the water inlet well mouth 21 for dredging; as the further scheme of this application, the two filtration system in concave greenery patches in sponge city still includes well lid 23, well lid 23 and the well head 21 looks adaptation of intaking, well lid 23 can be dismantled with overflow well 2 and be connected. Specifically, well lid 23 accessible threaded connection's mode or joint mode are connected with overflow well 2, and when the rainfall was less, accessible well lid 23 sealed into water well mouth 21, avoided large-scale rubbish such as discarded object, dead leaf to drop to produce in overflow well 2 and block to lead to the big difficult dredging problem of rainfall. On the other hand, closing the well lid 23 allows the rainwater to be purified and filtered by natural infiltration of the recessed green 1.

As a preferred embodiment of the present application, as shown in fig. 1, the outlet 31 is provided with a filter net 33, the filter net 33 is located inside the conveying pipe 5, and the filter net 33 is fixedly installed on the rainwater filtering device 3. Then filter when carrying out final output to the rainwater, quality when guaranteeing the rainwater output.

As a specific embodiment of the present application, as shown in fig. 1, a double filtration system for a concave green land in a sponge city further comprises a sewage discharge pipe 6; the rainwater filtering device 3 is also provided with a drain outlet 32, one end of the drain pipe 6 is communicated with the drain outlet 32 and is connected with the rainwater filtering device 3, and the other end is communicated with the sewage filtering device. The sewage and garbage generated in the rainwater filtering device 3 is discharged through the sewage outlet 32, and finally the aim of discharging and clearing through the sewage discharge pipe 6 is achieved.

As a specific embodiment of the present application, as shown in fig. 1, the double-filtration system for a concave green land in a sponge city further includes a fine sand filtration layer 7 and a gravel cushion layer 8, the fine sand filtration layer 7 is located above the gravel cushion layer 8, and both the fine sand filtration layer 7 and the gravel cushion layer 8 are located below the concave green land 1. Specifically, the fine sand filter layer 7 mainly plays a role of resistance interception in natural penetration, and is mainly used for removing suspended impurities, colloidal substances and part of microorganisms in water. And the gravel cushion layer 8 carries out secondary filtration on the rainwater filtered by the fine sand filtering layer 7 to remove suspended impurities, colloid impurities and the like in the water. So as to achieve the purpose of purification.

As a specific embodiment of the present application, as shown in fig. 1 and fig. 2, the double-filtration system for a concave green land in a sponge city further comprises a water collection layer 9, the water collection layer 9 is located at the bottom of the gravel cushion 7, and the water collection layer 9 is communicated with the collection tank through a main water collection pipe 10. Specifically, the middle part of the water collecting layer 9 is provided with a water collecting tank 91, the top part of the water collecting layer is uniformly provided with water through holes 92, and the water through holes 92 are communicated with the water collecting tank 91; the bottom of water collecting layer 9 is provided with a plurality of collector pipes 93, and a plurality of collector pipes 93 one end all is linked together with water catch bowl 91, and the other end all is linked together with total header 10. Therefore, the gravel cushion 7 finishes filtering rainwater and enters the water collecting tank 91 through the plurality of water through holes 92 to be collected, and finally, the filtered rainwater is discharged through the plurality of water collecting pipes 93 and collected into the total water collecting pipe 10 to be conveyed into the collecting tank together.

Synthesize above-mentioned two filtration system of concave greenery patches in sponge city's beneficial effect lie in:

the rainwater filtering device is arranged below the overflow well and the concave greenbelt, wherein the overflow well is communicated with the rainwater filtering device through the overflow pipe, when the concave greenbelt meets a period of large rainfall in summer, rainwater is collected into the water storage tank of the concave greenbelt and then enters the overflow well, and then the rainwater filtering device is used for filtering and purifying, so that the rainwater meets the use standard, and finally the rainwater is conveyed to the collecting tank through the conveying pipe to be collected. Consequently, when summer produces great rainfall, realize dredging fast through the overflow well, alleviate flood pressure's purpose, solve the problem that produces the waterlogging, and the rainwater that enters into the overflow well passes through rainwater filter equipment and realizes the utilization to the rainwater, reaches the outer effect of arranging of reduction runoff.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And any modifications, equivalents, improvements and the like which are obvious and which are made by this disclosure are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a two filtration system of concave greenery patches in sponge city, includes concave greenery patches (1) that can permeate naturally, its characterized in that:

the rainwater filter device is characterized by further comprising an overflow well (2) and a rainwater filter device (3), wherein the water inlet end of the rainwater filter device (3) is communicated with the overflow well (2) through an overflow pipe (4), and the outlet (31) of the rainwater filter device (3) is communicated with a collecting pool through a conveying pipe (5);

overflow well (2) are located the intermediate position of recessed greenery patches (1), the well mouth of intaking (21) of overflow well (2) are located cistern (11) bottom or inside of recessed greenery patches (1), and with cistern (11) are linked together, rainwater filter equipment (3) are located the below of recessed greenery patches (1).

2. The double filtration system of sponge city concave green land as claimed in claim 1, wherein:

overflow well (2) inside overflow chamber (22) that is equipped with, overflow chamber (22) pass through into water well head (21) with cistern (11) are linked together, overflow chamber (22) with overflow pipe (4) are linked together.

3. The double filtration system of sponge city concave green land as claimed in claim 1, wherein:

still include well lid (23), well lid (23) with into water well head (21) looks adaptation, well lid (23) with overflow well (2) can be dismantled and be connected.

4. The double filtration system of sponge city concave green land as claimed in claim 1, wherein:

delivery outlet (31) is provided with filter screen (33), filter screen (33) are located the inside of conveyer pipe (5), just filter screen (33) fixed mounting be in on rainwater filter equipment (3).

5. The double filtration system of sponge city concave green land as claimed in claim 1, wherein:

also comprises a sewage draining pipe (6);

the rainwater filtering device (3) is also provided with a drain outlet (32), one end of the drain pipe (6) is communicated with the drain outlet (32) and is connected with the rainwater filtering device (3), and the other end of the drain pipe is communicated with the sewage filtering device.

6. The double filtration system of sponge city concave green land as claimed in claim 1, wherein:

still include fine sand filter layer (7) and rubble bed course (8), fine sand filter layer (7) are located the top of rubble bed course (8), fine sand filter layer (7) reach rubble bed course (8) all are located the below of recessed greenery patches (1).

7. The double filtration system of a sponge city recessed greenbelt according to claim 6, wherein:

still include water-collecting layer (9), water-collecting layer (9) are located the bottom of rubble bed course (8), just water-collecting layer (9) through total collector pipe (10) with the catch pit is linked together.

8. The double filtration system of sponge city concave green land of claim 7, wherein:

a water collecting tank (91) is arranged in the middle of the water collecting layer (9), water through holes (92) are uniformly distributed in the top of the water collecting layer, and the water through holes (92) are communicated with the water collecting tank (91);

the bottom of the water collecting layer (9) is provided with a plurality of water collecting pipes (93), one ends of the water collecting pipes (93) are communicated with the water collecting grooves (91), and the other ends of the water collecting pipes are communicated with the total water collecting pipe (10).