CN110565785A - Pretreatment device for road bioretention belt - Google Patents

Pretreatment device for road bioretention belt Download PDF

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Publication number
CN110565785A
CN110565785A CN201910797144.7A CN201910797144A CN110565785A CN 110565785 A CN110565785 A CN 110565785A CN 201910797144 A CN201910797144 A CN 201910797144A CN 110565785 A CN110565785 A CN 110565785A
Authority
CN
China
Prior art keywords
road
bioretention
pretreatment
runoff
water outlet
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910797144.7A
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Chinese (zh)
Inventor
杜晓丽
刘殿威
尹子杰
李俊奇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing University of Civil Engineering and Architecture
Original Assignee
Beijing University of Civil Engineering and Architecture
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing University of Civil Engineering and Architecture filed Critical Beijing University of Civil Engineering and Architecture
Priority to CN201910797144.7A priority Critical patent/CN110565785A/en
Publication of CN110565785A publication Critical patent/CN110565785A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/04Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
    • E03F5/0401Gullies for use in roads or pavements
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/04Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
    • E03F5/0401Gullies for use in roads or pavements
    • E03F5/0403Gullies for use in roads or pavements with a sediment trap
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/04Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
    • E03F5/0401Gullies for use in roads or pavements
    • E03F5/0404Gullies for use in roads or pavements with a permanent or temporary filtering device; Filtering devices specially adapted therefor
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/04Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
    • E03F5/06Gully gratings
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/10Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/14Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A10/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
    • Y02A10/30Flood prevention; Flood or storm water management, e.g. using flood barriers

Abstract

The invention relates to the technical field of road rainwater treatment, in particular to a pretreatment device for a road bioretention zone. This a preprocessing device for biological detention area of road includes the runoff collecting pit of road, the upper end opening part of runoff collecting pit of road is equipped with the rainwater grate, the inside of runoff collecting pit of road is equipped with open closed apron, the apron can be separated the inner space of runoff collecting pit for upper portion preliminary sedimentation tank and lower part and get rid of the pond, the preliminary sedimentation tank in upper portion is equipped with the overflow outlet pipe, the one end and the preliminary sedimentation tank in upper portion of overflow outlet pipe are linked together, the other end and the biological detention area of overflow outlet pipe are linked together, the pond is got rid of in lower part is equipped with the outlet. The pretreatment device for the road bioretention zone provided by the invention has the advantages of simple structure, convenience in operation and easiness in maintenance, not only can effectively prevent the surface of the bioretention zone from being blocked by floaters and suspended matters in road runoff, but also can prevent salt-containing snow-melting runoff from flowing into the bioretention zone, and prolong the service life of the bioretention zone.

Description

Pretreatment device for road bioretention belt
Technical Field
The invention relates to the technical field of road rainwater treatment, in particular to a pretreatment device for a road bioretention zone.
Background
Under the guidance of the concept of developing rainwater management with low influence in sponge cities, the traditional technology directly replaces the road drainage mode combining a rainwater port and pipeline quick drainage by an ecological drainage mode combining slow drainage slow release and source dispersion gradually. The ecological drainage is to organize drainage by applying green infrastructure such as a biological retention zone in a road greening isolation zone, and requires that road surface runoff enters the biological retention zone through a curbstone notch (namely an inflow port) preferentially, seeps, retains and purifies in the biological retention zone, and the rest runoff enters a rainwater pipe network for discharge. However, the existing bioretention belt has the following problems when receiving road runoff:
Road runoff floater, suspended solid content are more, can pile up in a large number after directly getting into the bioretention area and take the surface at the bioretention, cause the bioretention to take the jam, shorten bioretention and take life, increase the daily operation maintenance cost in bioretention area and the frequency of overhaul rebuilding.
In order to ensure the traffic safety, a large amount of chloride salt snow-melting agent is used to accelerate the melting of the accumulated snow on the road when snowing in northern cities. Saline snow-melting runoff can still enter a biological retention zone along a curbstone notch like rainwater runoff, and serious influence is caused on plants and soil in the biological retention zone.
Disclosure of Invention
Technical problem to be solved
The invention aims to provide a pretreatment device for a road bioretention belt, which solves the problems that the operation and maintenance of the existing bioretention belt are inconvenient when road runoff is received, and plants and soil in the bioretention belt are affected by salt-containing snow melting runoff.
(II) technical scheme
In order to solve the technical problem, the invention provides a pretreatment device for a road biological retention zone, which comprises a road runoff collecting tank, wherein a rainwater grate is arranged at an opening at the upper end of the road runoff collecting tank; the inside of the road runoff collecting tank is provided with an openable cover plate, and the cover plate can divide the inner space of the road runoff collecting tank into an upper pre-settling tank and a lower discharging tank; the upper pre-settling tank is provided with an overflow water outlet pipe, one end of the overflow water outlet pipe is communicated with the upper pre-settling tank, and the other end of the overflow water outlet pipe is communicated with the biological retention zone; the lower discharging pool is provided with a water outlet.
Specifically, the inside wall ring of road runoff collecting pit is equipped with the apron installation department, the apron install in the upper surface of apron installation department.
Specifically, the cover plate is connected with the cover plate mounting part through a rotary connecting piece.
Further, the cover plate is provided with an operating handle.
Furthermore, the inner side wall of the upper pre-settling tank is provided with a cover plate positioning piece for positioning the cover plate.
Specifically, the cover plate positioning piece is connected with the operating handle.
Specifically, the overflow outlet pipe is arranged at the upper part of the upper pre-settling tank, and the arrangement position of the overflow outlet pipe is higher than the biological retention zone.
Specifically, the water outlet is communicated with a rainwater pipeline.
Specifically, the drain opening is disposed at the bottom of the lower drain tank.
Furthermore, the biological detention zone is provided with an anti-scouring structure corresponding to the water outlet of the overflow water outlet pipe.
(III) advantageous effects
The technical scheme of the invention has the following advantages:
According to the pretreatment device for the road bioretention zone, provided by the invention, in a rainfall season, the cover plate is in a closed state, road rainwater runoff flows into the upper pre-settling tank after floating substances are filtered by the rainwater grate, the liquid level in the upper pre-settling tank is gradually raised to the position of the overflow water outlet pipe along with the increase of water amount, rainwater in the upper pre-settling tank can be fully precipitated in the process, and then the road rainwater runoff after filtration and precipitation treatment enters the bioretention zone through the overflow water outlet pipe to be further subjected to storage, infiltration and purification, so that the concentration of water inflow pollutants in the bioretention zone is greatly reduced. In the snowing season, the cover plate is in an open state, snowmelt runoff containing a large amount of snowmelt agent flows into the lower part to be discharged after floating objects are filtered by the rainwater grate, and is discharged through the water outlet arranged on the lower part to be discharged, so that the influence of the salt-containing snowmelt agent on plants and soil in the biological detention zone is avoided.
The pretreatment device for the road bioretention zone provided by the invention has the advantages of simple structure, convenience in operation, easiness in maintenance and convenience in installation and construction, not only can effectively prevent the surface of the bioretention zone from being blocked by floaters and suspended matters in road runoff, reduce the daily maintenance times and frequency of the bioretention zone, but also can prevent salt-containing snow-melting runoff from flowing into the bioretention zone and prolong the service life of the bioretention zone.
Drawings
FIG. 1 is a top view of a pretreatment device for a roadway bioretention belt according to an embodiment of the present invention;
3 FIG. 3 2 3 is 3 a 3 sectional 3 view 3 taken 3 along 3 line 3 A 3- 3 A 3 of 3 FIG. 3 1 3 in 3 a 3 pretreatment 3 device 3 for 3 a 3 bioretention 3 strip 3 of 3 a 3 roadway 3 according 3 to 3 an 3 embodiment 3 of 3 the 3 present 3 invention 3; 3
FIG. 3 is a sectional view taken along line B-B of FIG. 1 in a pretreatment device for a bioretention strip of a roadway according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of a cover plate in a pretreatment device for a bioretention belt for roads according to an embodiment of the present invention.
In the figure: 1: a road runoff collecting tank; 101: an upper pre-settling tank; 102: a lower discharge tank; 2: a road; 3: a curb stone; 4: a bioretention zone; 5: a rainwater grate; 6: a cover plate; 7: an overflow water outlet pipe; 8: a water outlet; 9: an inflow port; 10: an operating handle; 11: a cover plate positioning piece; 12: an anti-scour structure; 13: a cover plate mounting portion; 14: rotating the connecting piece; 15: the bioretention belt barricade.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
As shown in fig. 1 to 4, the embodiment of the invention provides a pretreatment device for a road bioretention belt, which comprises a road runoff collecting tank 1, wherein the road runoff collecting tank 1 is used for collecting road runoff.
a curbstone 3 is provided between the road 2 and the biological retention belt 4, and the curbstone 3 is provided with openings at intervals, and the openings are set as inflow ports 9. The road runoff collecting tank 1 is arranged at a position corresponding to the inflow opening 9, so that the road runoff can enter the road runoff collecting tank 1 through the inflow opening 9. The road runoff treated by the road runoff collecting tank 1 can enter the biological retention zone 4. Each biological detention zone 4 is respectively arranged corresponding to each road runoff collecting tank 1.
in fig. 1, the road runoff collecting tank 1 is arranged between two bioretention belts 4, the two bioretention belts 4 are respectively set to be 4A and 4B, and then bioretention belt retaining walls 15 are respectively arranged between the bioretention belt 4A and the road runoff collecting tank 1 and between the bioretention belt 4B and the road runoff collecting tank 1. Wherein, the road runoff collecting tank 1 is correspondingly matched with the biological detention belt 4B.
The following will specifically describe the matching structure of the road runoff collecting tank 1 and the bioretention belt 4B as an example.
The upper end opening part of the road runoff collecting tank 1 is provided with a rainwater grate 5, and road runoff entering the road runoff collecting tank 1 can be filtered through the rainwater grate 5, so that floating materials in the road runoff are filtered.
The inside of road runoff collecting pit 1 is equipped with open closed apron 6, when apron 6 is in closed condition, can be separated the inner space of road runoff collecting pit 1 for two parts of upper portion preliminary sedimentation tank 101 and lower part and get rid of pond 102 through apron 6. The road runoff can be settled by the upper pre-settling tank 101 and can be directly discharged by the lower discharge tank 102.
Wherein, the upper portion preliminary sedimentation tank 101 is provided with an overflow outlet pipe 7, one end of the overflow outlet pipe 7 is communicated with the upper portion preliminary sedimentation tank 101, and the other end of the overflow outlet pipe 7 is communicated with the biological detention zone 4B. That is, the road runoff entering the upper pre-settling tank 101 can enter the bioretention zones 4B through the overflow outlet pipe 7.
Wherein, the lower discharging pool 102 is provided with a water outlet 8, and the road runoff entering the lower discharging pool 102 can be discharged through the water outlet 8.
In the rainfall season, the cover plate 6 is in a closed state, road rainwater runoff generated by rainfall wraps a large amount of floating and suspended pollutants and flows to the inflow port 9, the floating objects are filtered by the rainwater grate 5 and then flow into the upper pre-settling tank 101, the liquid level gradually rises to the position of the overflow water outlet pipe 7 along with the increase of the water amount, and suspended solids are fully settled in the upper pre-settling tank 101. Then, the filtered and precipitated road rainwater runoff enters the biological retention zone 4B for further storage, seepage and purification. Because a large amount of floaters and suspended solids are all held back in the road rainwater runoff, the possibility of entering the biological detention zone is avoided, thereby slowing down the blockage problem of the biological detention zone, prolonging the service life of the biological detention zone, and enabling pollutants in the road rainwater runoff to be gathered together through the rainwater grate 5 and the upper pre-settling tank 101, thereby being convenient for cleaning and maintenance of operators.
After winter, when cleaning and maintaining the road runoff collecting tank 1, the operating personnel can directly clean up the sediment intercepted by the cover plate 6 and then open the cover plate 6. When snowing, road snowmelt runoff containing a large amount of snowmelt agent still enters the road runoff collecting tank 1 through the inflow port 9, floating objects are filtered out through the rain grate 5, then the road snowmelt runoff directly enters the lower removing tank 102, and then the road snowmelt runoff is directly discharged through the water outlet 8. That is, the road snow melt runoff can not enter the bioretention zone, thereby effectively avoiding the harm to plants and soil caused by the snow melt agent entering the bioretention zone, further prolonging the service life of the bioretention zone and reducing the maintenance cost.
Further, the water outlet 8 is communicated with a rainwater pipeline, that is, the road snow-melting runoff entering the lower discharge tank 102 can directly flow into the rainwater pipeline through the water outlet 8, and then is discharged through the rainwater pipeline for disposal.
Particularly, the inside wall ring of road runoff collecting pit 1 is equipped with apron installation department 13, and apron 6 is installed in the upper surface of apron installation department 13 to can intercept the storage through 6 road runoff entering into upper portion preliminary sedimentation tank 101 of apron, and then realize the sediment processing to road runoff.
Specifically, the cover plate 6 is connected to the cover plate mounting portion 13 through the rotary connecting member 14, that is, the cover plate 6 is rotatably mounted on the cover plate mounting portion 13, and the operation is convenient.
In the present embodiment, the pivot joint 14 is a hinge. Of course, other configurations of the rotational connection may be used as long as the rotational connection between the cover plate 6 and the cover plate mounting portion 13 is achieved.
Further, the cover 6 is provided with an operation knob 10, and the opening and closing operation of the cover 6 is facilitated by the operation knob 10.
Further, the inner side wall of the upper pre-settling tank 101 is provided with a cover plate positioning member 11 for positioning the cover plate 6. When the cover 6 is in the open state, the cover 6 may be positioned by the cover positioning member 11 so that the cover 6 is maintained in the open state.
Specifically, the cover positioning member 11 can be connected to the operating handle 10. That is, when the cover 6 is in the open state, the cover positioning member 11 may be connected to the operating handle 10, thereby keeping the cover 6 in the open state.
The operating handle 10 can be of a U-shaped structure, the cover plate positioning piece 11 can be a hook, and after the cover plate 6 is opened, the operating handle 10 of the U-shaped structure can be directly hung on the hook, so that the cover plate 6 can be positioned, and the cover plate 6 is kept in an open state.
Specifically, the overflow outlet pipe 7 is arranged at the upper part of the upper pre-settling tank 101, so that the road runoff entering the upper pre-settling tank 101 can be fully settled.
Wherein, overflow outlet pipe 7 sets up the position and is higher than biological detention area 4B to be convenient for the road runoff after the sedimentation treatment in upper portion preliminary sedimentation tank 101 flows into biological detention area 4B.
Specifically, the drain 8 is disposed at the bottom of the lower drainage basin 102 to facilitate direct drainage of road runoff into the lower drainage basin 102.
Further, the biological retention zone 4B is provided with an anti-scouring structure 12, and the anti-scouring structure 12 corresponds to the water outlet of the overflow water outlet pipe 7. That is, the road runoff in the upper pre-settling tank 101 flows out from the water outlet of the overflow water outlet pipe 7, then is dissipated through the erosion prevention structure 12, and then flows into the bioretention zone 4B, so that the direct erosion of the road runoff on the bioretention zone 4B is prevented.
In this embodiment, the erosion protection structure 12 is formed by gravel packing. Of course, the anti-scouring structure with other structural forms can be adopted according to the actual use requirement.
In conclusion, the pretreatment device for the road bioretention zone, provided by the embodiment of the invention, has the advantages of simple structure, convenience in operation, easiness in maintenance and convenience in installation and construction, the surface of the bioretention zone can be effectively prevented from being blocked by floating objects and suspended matters in road runoff, the daily maintenance frequency and frequency of the bioretention zone are reduced, salt-containing snow-melting runoff can be prevented from flowing into the bioretention zone, and the service life of the bioretention zone is prolonged.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the present invention, unless otherwise specified, "a plurality" means one or more; "plurality" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims (10)

1. A pretreatment device for a road bioretention belt characterized by: the rainwater collecting device comprises a road runoff collecting tank, wherein a rainwater grate is arranged at an opening at the upper end of the road runoff collecting tank; the inside of the road runoff collecting tank is provided with an openable cover plate, and the cover plate can divide the inner space of the road runoff collecting tank into an upper pre-settling tank and a lower discharging tank; the upper pre-settling tank is provided with an overflow water outlet pipe, one end of the overflow water outlet pipe is communicated with the upper pre-settling tank, and the other end of the overflow water outlet pipe is communicated with the biological retention zone; the lower discharging pool is provided with a water outlet.
2. The pretreatment device for a road bioretention belt according to claim 1 wherein: the inside wall ring of road runoff collecting pit is equipped with the apron installation department, the apron install in the upper surface of apron installation department.
3. The pretreatment device for a road bioretention belt according to claim 2 wherein: the cover plate is connected with the cover plate mounting part through a rotating connecting piece.
4. The pretreatment device for a road bioretention belt according to claim 1 wherein: the cover plate is provided with an operating handle.
5. The pretreatment device for a road bioretention belt according to claim 4 wherein: and a cover plate positioning piece used for positioning the cover plate is arranged on the inner side wall of the upper pre-settling tank.
6. the pretreatment device for a road bioretention belt according to claim 5 wherein: the cover plate positioning piece is connected with the operating handle.
7. the pretreatment device for a road bioretention belt according to claim 1 wherein: the overflow water outlet pipe is arranged on the upper part of the upper part pre-settling tank, and the arrangement position of the overflow water outlet pipe is higher than the biological retention zone.
8. The pretreatment device for a road bioretention belt according to claim 1 wherein: the water outlet is communicated with a rainwater pipeline.
9. The pretreatment device for a road bioretention belt according to claim 1 wherein: the water outlet is arranged at the bottom of the lower discharging pool.
10. The pretreatment device for a road bioretention belt according to claim 1 wherein: the biological detention zone is provided with an anti-scouring structure corresponding to the water outlet of the overflow water outlet pipe.
CN201910797144.7A 2019-08-27 2019-08-27 Pretreatment device for road bioretention belt Pending CN110565785A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910797144.7A CN110565785A (en) 2019-08-27 2019-08-27 Pretreatment device for road bioretention belt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910797144.7A CN110565785A (en) 2019-08-27 2019-08-27 Pretreatment device for road bioretention belt

Publications (1)

Publication Number Publication Date
CN110565785A true CN110565785A (en) 2019-12-13

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CN201910797144.7A Pending CN110565785A (en) 2019-08-27 2019-08-27 Pretreatment device for road bioretention belt

Country Status (1)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101666116A (en) * 2009-07-27 2010-03-10 重庆大学 Drainage system used in cities, towns and communities
JP2012001989A (en) * 2010-06-18 2012-01-05 Sekisui Chem Co Ltd Filter for street inlet
CN104652596A (en) * 2013-11-20 2015-05-27 北京泰宁科创雨水利用技术股份有限公司 Rainwater bio-retention filtering device
CN108571050A (en) * 2018-04-19 2018-09-25 中冶华天南京工程技术有限公司 Underground type road rain water runoff collection processing system implementing
CN109629654A (en) * 2018-12-26 2019-04-16 中冶南方工程技术有限公司 A kind of pretreatment formula road rain water port system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101666116A (en) * 2009-07-27 2010-03-10 重庆大学 Drainage system used in cities, towns and communities
JP2012001989A (en) * 2010-06-18 2012-01-05 Sekisui Chem Co Ltd Filter for street inlet
CN104652596A (en) * 2013-11-20 2015-05-27 北京泰宁科创雨水利用技术股份有限公司 Rainwater bio-retention filtering device
CN108571050A (en) * 2018-04-19 2018-09-25 中冶华天南京工程技术有限公司 Underground type road rain water runoff collection processing system implementing
CN109629654A (en) * 2018-12-26 2019-04-16 中冶南方工程技术有限公司 A kind of pretreatment formula road rain water port system

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