CN217379193U

CN217379193U - Rainwater filtering device

Info

Publication number: CN217379193U
Application number: CN202220905042.XU
Authority: CN
Inventors: 刘睿; 遇琦; 何俊超; 白伟岚
Original assignee: China Urban Construction Design and Research Institute Co Ltd
Current assignee: China Urban Construction Design and Research Institute Co Ltd
Priority date: 2022-04-19
Filing date: 2022-04-19
Publication date: 2022-09-06
Anticipated expiration: 2032-04-19

Abstract

The utility model provides a rainwater filter equipment, include: a mud pit for accumulating silt; a cover layer laid around a wellhead of the mud pit; a curb disposed on a first side of the cover layer; a flat curb disposed on a second side of the cover layer; wherein the curb of the first side is adapted to isolate the cover from a curb-side green belt; the flat curb of the second side is adapted to isolate the overlay from a roadway. The utility model discloses a scheme can effectively reduce the silt in the road rainwater runoff, protects the quality of water of accomodating, and the engineering volume is little, and the cost is low.

Description

Rainwater filtering device

Technical Field

The utility model relates to a sponge city construction technical field especially indicates a rainwater filter equipment.

Background

Urban roads have the characteristics of large production flow and high pollution load. Often carry a large amount of silt and rubbish in the road runoff, directly get into rainwater pipeline and can lead to the water to receive the pollution on the one hand, also probably cause the pipeline to block up on the one hand. Road land generally accounts for 10% -15% of total urban construction land in China, but the contribution degree of generated runoff pollution (calculated by suspended matter (SS)) to a receiving water body can be up to 50%, and especially the runoff pollution in the early stage of rainfall is the most serious. Therefore, road rainwater runoff reduction and pollution control are key technologies in sponge city construction in China.

The prior art has two solutions for rainwater runoff reduction and pollution control: one is gray facilities such as a cyclone, a regulation and storage tank and the like, separates silt in runoff and reduces the discharge of pollutants, but has the defects of large engineering quantity and high manufacturing cost; the other is a sponge city green facility, runoff is stagnant and purified by comprehensive action of soil, matrix and plants, but silt is easy to deposit on the surface of the facility or cause matrix blockage, and the filtering effect is poor.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a rainwater filter equipment, can effectively reduce the silt in the road rainwater runoff, the protection receives the quality of water.

In order to solve the technical problem, the technical scheme of the utility model as follows:

a stormwater filtration device comprising:

a mud pit for accumulating silt;

a cover layer laid around a wellhead of the mud pit;

a curb disposed on a first side of the cover layer;

a flat curb disposed on a second side of the cover layer;

wherein the curb of the first side is adapted to isolate the cover from a curb-side green belt; the flat curb of the second side is adapted to isolate the overlay from a roadway.

Optionally, the rainwater filtering apparatus further includes: and the vertical kerbs are positioned on two sides of the flat kerbs.

Optionally, cement mortar bases are arranged at the bottoms of the kerbstones and the vertical kerbs.

Optionally, a drainage hole is formed in the upper portion of the mud trap.

Optionally, the cover layer is composed of cordierite.

Optionally, the rainwater filtering device further comprises a drainage pipeline; the drainage pipeline is arranged on the outer side of the side wall of the mud sinking well and extends in the length direction parallel to the curb on the first side and the flat curb on the second side.

Optionally, a water inlet hole is formed in the pipe wall of the drainage pipeline.

Optionally, the outside of the drainage pipeline is coated with geotextile.

Optionally, a gravel drainage layer is arranged outside the mud pit; the gravel drainage layer is coated on the side wall of the mud trap and the periphery of the drainage pipeline.

Optionally, the periphery of the bottom of the mud pit is provided with a concrete cushion.

The above technical scheme of the utility model at least include following beneficial effect:

the above technical scheme of the utility model, through rainwater filter equipment, include: a mud pit for accumulating silt; a cover layer laid around a wellhead of the mud pit; a curb disposed on a first side of the cover layer; a flat curb disposed on a second side of the cover layer; wherein the curb of the first side is adapted to isolate the cover from a curb-side green belt; the flat curb of the second side is adapted to isolate the overlay from a roadway. Can effectively reduce the silt in the road rainwater runoff and protect the water quality of the receiving water body, and has small engineering quantity and low manufacturing cost.

Drawings

Fig. 1 is a plan view of the rainwater filtering device of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 in the direction of the arrows;

FIG. 3 is a schematic view of a further structure in the direction of the arrows in FIG. 1;

FIG. 4 is a sectional view of the rainwater filtering apparatus of the present invention;

FIG. 5 is a schematic view of the water inlet hole formed on the pipe wall of the water discharge pipe of the present invention.

Description of reference numerals: 1. a mud sinking well; 2. a water discharge pipeline; 3. a cover layer; 4. a curb; 5. a flat kerbstone; 6. erecting a kerb stone; 7. a drain hole; 8. a water inlet hole; 9. geotextile; 10. a gravel drainage layer; 11. a concrete pad.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

As shown in fig. 1, an embodiment of the present invention provides a rainwater filtering apparatus, including: a mud pit 1 for accumulating silt; a cover layer 3 laid around the wellhead of the mud pit 1; a kerb 4 provided on a first side of the cover layer 3; a flat curb 5 provided on a second side of the cover layer 3; wherein the first side of the kerb 4 is adapted to isolate the cover layer 3 from a roadside green belt; the second-side flat kerb 5 is adapted to isolate the cover layer 3 from the road surface.

Here, the mud trap 1 may be made of stainless steel, so that the mud trap 1 may be prevented from rusting due to rainwater immersion for a long time; the mud pit 1 is detachable, and when the silt in the mud pit 1 is accumulated to a preset height, the mud pit 1 can be detached, so that the silt in the mud pit 1 can be cleaned conveniently;

the kerbstone 4 can play a role in separating the rainwater filtering device from the green belt and prevent the covering layer 3 from being dispersed into the green belt by rainwater, and the kerbstone 4 can be made of black granite and has the advantages of hard texture, difficult deformation, strong pressure resistance, high bending strength and good plane balance; the coating is not easy to magnetize, weathers, is not affected by humidity and has strong weather resistance; the acid and alkali resistance and the corrosion resistance are strong; uniform color and high appearance.

The utility model discloses an in this embodiment, can effectively reduce the silt in the road rainwater runoff through rainwater filter equipment, protect the quality of water of receiving.

The utility model discloses an optional embodiment, rainwater filter equipment still includes: and the vertical kerbs 6 are positioned on two sides of the flat kerbs 5.

It should be noted that the flat curb 5 in this embodiment is a flat curb having a top surface flush with the road surface; the vertical kerbstone refers to the vertical kerbstone with the top surface higher than the road surface.

The flat curb 5 can guide rainwater to flow into the mud trap 1 first, settle silt, and clear rainwater on the upper part enters the gravel drainage layer 10 through the drainage hole 7 of the mud trap 1 to be further filtered and is drained to a nearby rainwater well through the drainage pipeline 2, so that rainwater runoff is filtered and purified.

In this embodiment, the vertical curbs 6 at two ends of the flat curbs 5 may be in the shape of a right triangle, but are not limited to the shape of a right triangle, rainwater may flow to the flat curbs 5 through the bevel edges of the vertical curbs 6, and then flow into the cover layer 3 or the mud trap 1, so that rainwater may be further filtered, and meanwhile, the connection between the vertical curbs 6 and the flat curbs 5 is more beautiful and smooth;

the flat kerbstone 5 and the vertical kerbstone 6 can be made of granite preferably, and the materials have the advantages of hard texture, difficult deformation, strong pressure resistance, high bending strength and well-balanced plane; the paint is not easy to magnetize, weathers, is not affected by moisture and has strong weather resistance; the acid and alkali resistance and the corrosion resistance are strong; uniform color and beautiful appearance.

In another alternative embodiment of the present invention, as shown in fig. 2, the bottom of the kerb 4 and the bottom of the vertical kerb 6 are both provided with cement mortar bases 12.

In this embodiment, the cement mortar base 12 can fix the vertical kerb 6, so that the curb 4 and the vertical kerb 6 can be installed more stably.

In another alternative embodiment of the present invention, as shown in fig. 2, a drainage hole 7 is formed at the upper part of the mud pit 1.

In this embodiment, when rainwater falls into the mud caisson 1, silt with high density sinks at the bottom of the mud caisson 1 to be deposited, rainwater with low density floats in the mud caisson 1, and is discharged out of the mud caisson 1 through the plurality of water discharge holes 7 arranged at the upper part of the mud caisson 1, so that rainwater is filtered, wherein the number of the water discharge holes 7 can be determined according to actual needs as long as the flow of rainwater can meet the requirement that all rainwater in the mud caisson 1 is discharged out of the mud caisson 1;

the peripheral side walls of the mud trap 1 can be provided with the drainage holes 7, so that rainwater can be drained out of the mud trap 1, and in consideration of draining rainwater into the rainwater well quickly, the drainage holes 7 are preferably arranged at the upper part of the side walls in the same extending direction as the drainage pipeline 2, so that rainwater drained from the drainage holes 7 can enter the drainage pipeline 2 and then flow into the rainwater well, and therefore the rainwater can be drained.

In a further alternative embodiment of the invention, the cover layer 3 is made of cordierite.

In this embodiment, the covering layer 3 made of the cordierite particles allows rainwater to penetrate, and when the amount of rainwater is large, rainwater may penetrate into the drainage pipe 2 through the covering layer 3 made of the cordierite particles, thereby draining rainwater into the rainwater well.

As shown in fig. 4, in another alternative embodiment of the present invention, the rainwater filtering apparatus further includes a drainage pipe 2; the drainage pipeline 2 is arranged on the outer side of the side wall of the mud pit 1 and extends in the length direction parallel to the curb 4 on the first side and the flat curb 5 on the second side.

In this embodiment, the drainage pipeline 2 is placed on the outer side of the side walls of at least two of the mud sumps 1, the drainage pipeline 2 is further connected to a catch basin, and rainwater drained from the drainage holes 7 of the mud sumps 1 can flow into the catch basin through the drainage pipeline 2;

the drainage pipeline 2 can be a PE pipe, and the pipeline made of the PE pipe has strong aging resistance, good chemical corrosion resistance and long service life; the growth of algae, bacteria or fungi can not be promoted, and the water quality of the receiving water body can not be polluted; good low-temperature impact resistance and good stress cracking resistance.

As shown in fig. 5, in another alternative embodiment of the present invention, at least two water inlets 8 are disposed on the wall of the drainage pipeline 2.

In this embodiment, the drainage pipeline 2 may be connected to a catch basin nearby; rainwater can enter the drainage pipeline 2 through the water inlet holes 8 formed in the pipe wall of the drainage pipeline 2, so that the rainwater is drained into the rainwater well.

In another alternative embodiment of the present invention, as shown in fig. 4, the exterior of the drainage pipeline 2 is covered with geotextile 9.

In this embodiment, geotechnical cloth 9 can be right drainage pipe 2 plays the guard action, prevents that the rubble card from being in set up on drainage pipe 2's the pipe wall cause the jam in the inlet opening 8, perhaps fall into among drainage pipe 2, influence the filter effect of rainwater.

In another alternative embodiment of the present invention, as shown in fig. 4, a gravel drainage layer 10 is provided outside the mud pit 1; the gravel drainage layer 10 covers the side wall of the mud caisson 1 and the periphery of the drainage pipeline 2.

In this embodiment, the gravel drainage layer 10 can filter rainwater discharged from the mud trap 1 or rainwater directly permeated through the covering layer 3, and filter gravel or garbage from the rainwater, so that the water quality of the receiving water body is guaranteed.

In another alternative embodiment of the present invention, as shown in fig. 2 and 3, a concrete pad 11 is provided around the bottom of the mud pit 1.

In this embodiment, the concrete cushion 11 that 1 bottom periphery of mud caisson is equipped with can make the safe normal use who stabilizes of mud caisson 1 will the plain soil of concrete cushion 11 below is tamped, can reach more and make the safe effect that stabilizes of mud caisson 1.

In another optional embodiment of the present invention, the rainwater filtering apparatus has the following working processes:

rainwater permeates through the mud trap 1 and the gravel covering layer 3;

rainwater permeating through the mud pit 1 permeates into the mud pit 1, and after a period of sedimentation, impurities such as silt and garbage with heavy weight are sunk into the bottom of the mud pit 1, rainwater with light weight floats to the upper part of the mud pit 1, is discharged out of the mud pit 1 through the water discharge hole 7, passes through the gravel drainage layer 10 and is filtered by the geotextile 9, enters the drainage pipeline 2 from the water inlet hole in the pipe wall of the drainage pipeline 2, and flows into a nearby rainwater well through the drainage pipeline 2;

through the rainwater of the direct infiltration of the gravel overburden 3, get into gravel drainage layer 10, pass through geotechnological cloth 9's filtration, through inlet opening on the 2 pipe walls of drainage pipe gets into among the drainage pipe 2, through drainage pipe 2 flows into in the rainwater well nearby.

The above embodiment of the utility model, in can reduce the silt in the road rainwater runoff by a wide margin through rainwater filter equipment for rainwater impurity content in the rainwater well subducts by a wide margin, thereby protects the quality of water of receiving.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A rainwater filtration device, comprising:

a mud pit (1) for accumulating silt;

a covering layer (3) laid around the wellhead of the mud pit (1);

a kerb (4) provided on a first side of the cover layer (3);

a flat kerbstone (5) disposed on a second side of the cover layer (3);

wherein the first side of the kerb (4) is adapted to isolate the cover layer (3) from a roadside green belt; the second-side flat kerb (5) is adapted to isolate the cover layer (3) from the road surface.

2. The stormwater filtration device according to claim 1, further comprising: the vertical kerbs (6), the vertical kerbs (6) are positioned on two sides of the flat kerbs (5).

3. A stormwater filtration device as claimed in claim 2, characterized in that the kerbstones (4) and the kerbstones (6) each have a cement mortar base (12) at their bottom.

4. A rainwater filtering device according to claim 1, characterized in that the upper part of said mud pit (1) is provided with a drainage hole (7).

5. Stormwater filtration device according to claim 1, characterized in that the cover layer (3) consists of cordierite.

6. A stormwater filtration device as claimed in claim 1, further comprising a drain conduit (2); the drainage pipeline (2) is arranged on the outer side of the side wall of the mud sinking well (1) and extends in the length direction parallel to the curb (4) on the first side and the flat curb (5) on the second side.

7. A rainwater filtering device according to claim 6, characterised in that the pipe wall of said draining pipe (2) is provided with water inlet holes (8).

8. A stormwater filtration device as claimed in claim 7, characterized in that the draining conduit (2) is externally coated with a geotextile (9).

9. A stormwater filtration device as claimed in claim 6, characterized in that the outside of the mud pit (1) is provided with a gravel drainage layer (10); the gravel drainage layer (10) is coated on the side wall of the mud caisson (1) and the periphery of the drainage pipeline (2).

10. A stormwater filtration device as claimed in claim 1, characterized in that the periphery of the bottom of the mud pit (1) is provided with a concrete pad (11).