CN109574404B - Drainage purification system for highway bridge - Google Patents
Drainage purification system for highway bridge Download PDFInfo
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- CN109574404B CN109574404B CN201811635935.1A CN201811635935A CN109574404B CN 109574404 B CN109574404 B CN 109574404B CN 201811635935 A CN201811635935 A CN 201811635935A CN 109574404 B CN109574404 B CN 109574404B
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/32—Biological treatment of water, waste water, or sewage characterised by the animals or plants used, e.g. algae
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Abstract
The invention relates to a drainage purification system for a highway bridge, which comprises a rainwater flow guide pipe, wherein the rainwater flow guide pipe comprises a bridge body flow guide section and a bridge pier flow guide section, the bridge body flow guide section comprises a vertical part, an inclined guide part and a pressure reducing device connected with the inclined guide part, a sediment tank is arranged at the bottom of the joint of the vertical part and the inclined guide part, and a blocking device is arranged in front of the sediment tank; the screen blocking device consists of a fixed filter and a movable filter screen which are horizontally arranged, the fixed filter screen is arranged on the front side in the water flow direction and is fixed at the water inlet of the inclined guide part, the movable filter screen is arranged on the rear side of the fixed filter screen and is arranged above the front side of the slag settling tank, two sides of the top of the movable filter screen are provided with slide rod holes, and the side edges of the slide rod holes are provided with springs connected with the fixed filter screen; a sliding rod is arranged in the pipe corresponding to the top positions of the fixed filter screen and the movable filter screen; and a drainage wall is arranged at the joint of the vertical part positioned at the rear side of the movable filter screen and the slag settling tank. The filter screen of this system has from the cleaning function, and this system realizes that the rainwater is elementary to be filtered and makes highway bridge more beautified.
Description
Technical Field
The invention belongs to the technical field of road engineering, and particularly relates to a drainage purification system for a highway bridge.
Background
Along with the development of road and bridge construction, the public road and bridge application is wider and wider, has shortened the stroke of people's trip greatly, nevertheless has certain safety problem simultaneously: 1. in rainy seasons, rainwater on the bridge floor of the highway bridge is accumulated and cannot be quickly removed due to abundant rainwater, so that the vehicle is easy to slip, and potential safety hazards exist; 2. due to the passing of vehicles, the rainwater is doped with automobile oil stains, and is discharged into a river channel along with the rainwater, so that the water quality of the water body is easily polluted.
In order to solve the technical problems, patent CN108166386A discloses a drainage system for highway bridges and a construction method thereof, comprising a water trough, a bridge floor rainwater diversion device, a first purification device and a second purification device; through the design of bridge floor rainwater guiding device, can reduce the gathering of rainwater on the bridge floor in leading to the water trough fast, the security when improving the driving. However, such a purification system provided with consumables such as fly ash and a resin bed requires periodic replacement, and requires a large amount of resources and is difficult to maintain.
Disclosure of Invention
The invention aims to solve the technical problem that the drainage purification system for the highway bridge has the self-cleaning function of the filter screen, and the bridge pier of the highway bridge is set into an ecological filter system, so that the highway bridge is beautified while rainwater is primarily filtered.
In order to achieve the purpose, the drainage purification system for the highway bridge comprises a rainwater flow guide pipe arranged on a bridge body, wherein the rainwater flow guide pipe comprises a bridge body flow guide section and a bridge pier flow guide section, the bridge body flow guide section comprises a vertical part extending downwards from the bridge floor, an inclined guide part arranged at the lower end of the vertical part and bent inwards, and a pressure reducing device connected with the inclined guide part and arranged on the lower wall of the bridge body;
the screen blocking device is composed of a fixed filter and a movable filter screen which are horizontally arranged, the fixed filter screen is arranged on the front side in the water flow direction and is fixed at a water inlet of the inclined guide part, the movable filter screen is arranged on the rear side of the fixed filter screen and is arranged above the front side of the slag settling tank, slide rod holes are formed in two sides of the top of the movable filter screen, and springs are arranged on the side edges of the slide rod holes and connected with the tops of the fixed filter screens; a sliding rod inserted into the sliding rod hole is arranged in the pipe corresponding to the top positions of the fixed filter screen and the movable filter screen;
and a drainage wall which is curved upwards is arranged at the joint of the vertical part and the slag settling tank on the rear side of the movable filter screen.
Further, the movable filter screen is an arc-shaped filter screen with the middle part protruding backwards, under the relaxation state of the spring, the middle net body of the movable filter screen protrudes and is arranged below the vertical part, and the bottom edge of the fixed filter screen is provided with a buffer stop column made of anti-corrosion rubber.
Furthermore, the tank body of the slag settling tank extends downwards from the inclined wall at the bottom of the bridge body to protrude outwards, an opening is arranged at the protruding part of the tank body, and a sealing door is arranged on the opening.
Furthermore, a top cover is arranged at an opening at the top of the rainwater flow guiding pipe, and the top cover comprises a cover body, a frame body arranged below the cover body and supporting columns for connecting the periphery of the frame body and the cover body; the cover body is higher than the bridge floor of the highway bridge, a notch is arranged on the bridge floor corresponding to the top opening of the rainwater guide pipe, and a rainwater port is formed between the notch and the cover body;
the mesh size of the movable filter screen is 5-8mm, and the mesh size of the fixed filter screen is 2-5 mm.
Furthermore, a buffer pool, a first-stage plant pool, a second-stage plant pool, a third-stage plant pool and a fourth-stage plant pool are sequentially arranged on the bridge pier diversion section from the upper wall to the lower wall of the bridge pier, the buffer pool is connected with the pressure reducing device through a connecting pipe, a spraying device and a water pipe are arranged at the bottom of the buffer pool, an outlet of the water pipe is communicated with the first-stage plant pool, and a rainwater inlet of the water pipe is arranged at the upper edge of the side wall of the buffer pool; the bottom in first order plant pond, second grade plant pond and third level plant pond all evenly distributed a plurality of apertures, the bottom in first order plant pond, second grade plant pond and third level plant pond all is equipped with flourishing pond, the pool face area in flourishing pond is greater than the bottom area that corresponds the plant pond, the bottom in flourishing pond is equipped with sprinkler and flowing water branch pipe, the export of flowing water branch pipe leads to next-level plant pond, the bottom in fourth grade plant pond is equipped with the running water mouth, the water pipe that sets up along the pier wall is connected to the running water mouth.
Further, the first-stage plant pond, the second-stage plant pond, the third-stage plant pond and the fourth-stage plant pond respectively comprise a planting layer, a pebble layer, a planting soil layer and a gravel layer from top to bottom; one or more of physalis alkekengi, drooping bevel grass, ophiopogon japonicus and rhynchophylla is planted in the planting layer of the first-stage plant pond; one or more of rhizoma alismatis, herba allii fistulosi, aquatic mint, loosestrife, herba lonicerae, eichhornia crassipes, and field thistle are planted in the planting layers of the second-stage plant pond, the third-stage plant pond and the fourth-stage plant pond.
Furthermore, the convex lengths of the first plant pond, the second plant pond, the third plant pond and the fourth plant pond are increased in sequence compared with the bridge pier.
Furthermore, a plurality of pores are distributed at the bottom of the water containing pool, and a pore net layer is arranged at the bottom of the water containing pool; the spraying device comprises a bottom plate, wherein a plurality of water diversion long holes are distributed on the bottom plate in parallel, and diversion sheets are uniformly distributed on the water diversion long holes, are of arc-shaped strip structures, and gradually narrow towards the bottom from the top to form a pointed shape; the interval length between the water diversion long holes which are arranged in parallel is 2-6m, and the interval length of the diversion pieces on the same water diversion long hole is 2-6 cm.
Furthermore, a ladder stand is arranged along the bottom of the bridge body towards the bottom of the pier and corresponds to the side part of the plant pond.
The pressure reducing device comprises a cavity, a water inlet is formed in one side above the cavity, a water outlet is formed in the other side below the cavity, a plurality of transverse partition plates are vertically arranged in the cavity, one side edge of each transverse partition plate is not fixed on the wall of the cavity, the other side edges of the transverse partition plates are fixed on the wall of the cavity, and the transverse partition plates divide the cavity into slow flow channels which are communicated end to end; a buffer belt with a convex edge structure is arranged at the front side of the diaphragm plate which is not fixed on the wall of the cavity body, and a net body is arranged at the joint of the buffer belt and the diaphragm plate;
the water inlet is provided with a fine-pore filter screen, and the aperture of the fine-pore filter screen is 00.5-0.12 cm; an impurity cavity is arranged below the outer side of the water inlet of the pressure reducing device, a water passage is arranged at the bottom of the impurity cavity and communicated with the bottom of the cavity, and a second pore filter screen is arranged on the water passage.
The drainage purification system for the highway bridge guides the rainwater guide pipe to the bottom of the bridge along the bridge surface of the bridge, and rainwater is filtered, decompressed and slowly flowed in the process and then enters a multistage plant pond to be filtered by an ecological system; the pressure-reducing slow flow has the function of slow flow when the rainwater is excessive (particularly during rainstorm), so that the scouring force on plants in a plant pond can be weakened, and the plants are prevented from being injured. The system has the important improvement that the double-layer filter screen structure of the rainwater flow guiding pipe ensures that the movable filter screen can shake off the filter substances adhered to the movable filter screen through rainwater washing and enter the sedimentation tank, so that cleaning personnel can clean the movable filter screen conveniently; the structure also has a primary decompression flow slowing function. Another important improvement point is that a vertical ecological filtering system of the bridge pier is designed, aquatic plants are planted on the wall of the bridge pier, and when rainwater flows through the plant pond, most pollutants in runoff are removed under the combined action of precipitation, filtration, permeation, absorption, biodegradation and the like, so that the purposes of rainwater runoff collection and utilization and runoff pollution control are achieved.
Drawings
FIG. 1 is a schematic structural view of one embodiment of a drainage purification system for highway bridges according to the present invention;
FIG. 2 is an enlarged view of the structure at the position A in FIG. 1;
FIG. 3 is a schematic structural view of an embodiment of the present invention in a state where a fixed screen and a movable screen are combined;
FIG. 4 is a schematic structural view of still another embodiment of the drainage purification system for highway bridges according to the present invention;
FIG. 5 is a schematic structural view of one embodiment of a top cover of the present invention;
FIG. 6 is a schematic sectional view of the plant pond and the water holding tank according to the present invention;
FIG. 7 is a schematic structural view of a fine mesh layer at the lower part of a water containing pool according to the present invention;
fig. 8 is a schematic cross-sectional view of a pressure relief device of the present invention.
Reference numerals
In the figure: 1-rainwater flow guide pipe; 10-bridge body diversion section; 101-a vertical portion; 102-a tapered guide; 103-a slag settling tank; 105-a drainage wall; 106-sealing door; 11-a blocking device; 110-fixing the filter screen; 111-a movable screen; 112-rod hole; 114-a slide rod; 115-buffer stop post; 2-a buffer pool; 20-bridge pier diversion section; 21-a water flow pipe; 22-a flow manifold; 3-first-stage plant pond; 4-second plant pond; 40-an inclined wall; 41-small hole; 5-third-stage plant ponds; 50-a top cover; 501, a cover body; 502-frame body; 503-support column; 504-gap; 6-fourth plant pond; 60-a pressure reducing device; 61-a cavity; 62-water inlet; 63-water outlet; 64-diaphragm plate; 65-a buffer zone; 66-impurity chamber; 67-a mesh body; 68-fine mesh filter screen; 69-water passage; 690-second fine mesh screen; 7-water containing pool; 70-a bottom plate; 71-a water diversion long hole; 72-drainage sheet; 73-pores; 74-a base plate; 8-water pipe; 90-connecting pipe.
Detailed Description
The following description will be made with reference to the following examples to describe an embodiment of a drainage purification system for highway bridges according to the present invention. The following examples are only used to illustrate the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby; various changes and modifications can be made by one skilled in the art without departing from the spirit and scope of the invention, and all equivalent technical solutions also fall within the scope of the invention, which is defined by the claims.
Examples
Fig. 1 shows an embodiment of a drainage purification system for highway bridges according to the present invention. The system is including the rainwater honeycomb duct 1 of locating the bridge body, rainwater honeycomb duct 1 includes bridge body water conservancy diversion section 10 and pier water conservancy diversion section 20, bridge body water conservancy diversion section 10 includes from bridge floor downwardly extending's vertical part 101, locates vertical part 101 and incurve oblique guide part 102, connection oblique guide part 102 just locates pressure relief device 60 on the bridge body lower wall, the linking department bottom of vertical part 101 and oblique guide part 102 is equipped with detritus pond 103, the place ahead in detritus pond 103 is equipped with blocks net device 11.
As shown in fig. 3, the blocking device 11 is composed of a fixed filter screen 110 and a movable filter screen 111 which are horizontally arranged, the fixed filter screen 110 is arranged at the front side of the water flow direction and is fixed at the water inlet of the inclined guide part 102, the movable filter screen 111 is arranged at the rear side of the fixed filter screen 110 and is arranged above the front side of the sediment tank 103, two sides of the top of the movable filter screen 111 are provided with rod holes 112, and the side of the rod hole 112 is provided with a spring 113 connected with the top of the fixed filter screen 110; a sliding rod 114 inserted into the sliding rod hole 112 is arranged in the pipe corresponding to the top positions of the fixed filter screen 110 and the movable filter screen 111. A gap is formed between the rod hole 112 and the rod 114, and the gap is preferably 0.5-2cm in size, so that the rod can vibrate up, down, left and right except for stretching back and forth. The movable filter screen 111 is arranged to vibrate under the action of rain wash to shake off impurities blocked or hung on the net body, so that the impurities on the net body can be self-cleaned.
In some examples, the junction of the vertical portion 101 and the scum basin 103, which is located at the rear side of the movable screen 111, is provided with an arc-shaped upwardly curved drainage wall 105, as shown in fig. 2. The drainage wall 105 redirects vertically falling rainwater, which changes from longitudinal to lateral by its blockage, and the rainwater impacts the movable screen laterally.
The movable filter screen 111 is an arc-shaped filter screen with the middle part protruding backwards, under the relaxation state of the spring, the middle net body of the movable filter screen 111 protrudes and is arranged below the vertical part 101, rainwater falling vertically can impact the protruding part, and the bottom edge of the fixed filter screen 110 is provided with a buffer stop column 115 made of anti-corrosion rubber. The arrangement of the buffer stop column 115 makes the movable filter screen move forward, the bottom of the movable filter screen collides with the buffer stop column, the buffer stop column has certain elastic restoring force, the movable filter screen has certain energy storage capacity, and the movable filter screen reversely pushes the movable filter screen to intensify the vibration.
As shown in fig. 2, the tank body of the slag settling tank 103 extends downwards from the inclined wall 40 at the bottom of the bridge body to protrude outwards, and an opening is arranged at the position of the protruding part and is provided with a sealing door 106. The sealing door can be sealed through the sealing gasket arranged on the door frame in some examples, and cleaning personnel only need to open the sealing door periodically to clean garbage accumulated in the sediment tank.
In some examples, as shown in fig. 5, a top cover 50 is disposed at the top opening of the rainwater guiding pipe 1, and the top cover 50 includes a cover 501, a frame 502 disposed below the cover 501, and a supporting column 503 connecting the periphery of the frame 502 and the cover 501; the cover body 501 is higher than the bridge deck of the highway bridge, a notch 504 is arranged on the bridge deck corresponding to the top opening of the rainwater guide pipe 1, and a rainwater inlet is formed between the notch 504 and the cover body 501; compared with the prior art, the rainwater flow guide pipe has larger inlet, and can flush small garbage such as leaves, broken stones and the like on the road surface into the pipe through rainwater so as to be deposited in the sediment tank; so that the road surface does not need to be cleaned too much under normal conditions.
The mesh sizes of the movable filter screen and the fixed filter screen are adjusted according to actual road conditions, in some preferable examples, the mesh size of the movable filter screen 111 is 5-8mm, the mesh size of the fixed filter screen 110 is 2-5mm, and particulate matters with corresponding sizes are intercepted through the mesh sizes, so that the pipeline is prevented from being blocked.
Fig. 4 shows yet another embodiment of the drainage purification system for highway bridges of the present invention. The pier diversion section 20 is sequentially provided with a buffer tank 2, a first-stage plant pond 3, a second-stage plant pond 4, a third-stage plant pond 5 and a fourth-stage plant pond 6 from the upper wall to the lower wall of the pier, the buffer tank 2 is connected with the pressure reducing device 60 through a connecting pipe 90, the bottom of the buffer tank 2 is provided with a spraying device and a water flowing pipe 21, and the outlet of the water flowing pipe 21 is communicated with the first-stage plant pond 3; the bottom of first order plant pond 3, second grade plant pond 4 and third level plant pond 5 all evenly distributed a plurality of apertures 41, the bottom of first order plant pond 3, second grade plant pond 4 and third level plant pond 5 all is equipped with flourishing pond 7, the pool face area in flourishing pond 7 is greater than the bottom area in corresponding plant pond, the bottom in flourishing pond 7 is equipped with sprinkler and flowing water branch pipe 22, the export of flowing water branch pipe 22 leads to next-level plant pond, the bottom in fourth level plant pond 6 is equipped with the drain, the water pipe 8 that sets up along the pier wall is connected to the drain. When rainwater enters the pier diversion section, a rainwater spraying device in the buffer tank sprays rainwater to the first-stage plant pond, and when more rainwater exists, the rainwater flows to the first-stage plant pond from the water flowing pipe 21; therefore, in some specific examples, the rainwater inlet of the water flowing pipe 21 is arranged at the upper edge of the side wall of the buffer pool. Rainwater in the first-stage plant pond flows out of the small holes at the bottom of the pond to the water containing pond after being subjected to ecological filtration by plants in the pond; the bottom of the water holding tank is sprayed to the second-stage plant pond and flows to the second-stage plant pond through the flowing water branch pipe 22; therefore, the second-stage plant pond, the third-stage plant pond and the fourth-stage plant pond filter rainwater until the rainwater filtered by the fourth stage directly enters the water pipe 8 and flows out.
The first-stage plant pond 3, the second-stage plant pond 4, the third-stage plant pond 5 and the fourth-stage plant pond 6 respectively comprise a planting layer, a pebble layer, a planting soil layer and a gravel layer from top to bottom; wherein the planting soil layer is adjusted according to different plants. Fig. 6 shows a sectional structure diagram of the plant pond of the first stage 3, the second stage 4, the third stage 5 and the water holding pond 7. The first-stage plant pond 3 is preferably suitable for planting some yin-loving aquatic plants and other ornamental aquatic plants because the first-stage plant pond is arranged below the bridge floor. In some examples, the first stage plant pond 3 is planted with one or more of medulla Junci, Ecliptae herba, Ophiopogon japonicus or Elaeagnus Selengensis in the planting layer; one or more of rhizoma alismatis, allium fistulosum, aquatic mint, loosestrife, herba lonicerae, eichhornia crassipes and field thistle are planted in the planting layers of the second-stage plant pond 4, the third-stage plant pond 5 and the fourth-stage plant pond 6.
And the convex lengths of the first-stage plant pond 3, the second-stage plant pond 4, the third-stage plant pond 5 and the fourth-stage plant pond 6 are sequentially increased in comparison with the pier. Namely, the area of the next stage is larger than that of the previous stage, so that rainwater can be scattered in the next stage pond.
A plurality of pores 73 are distributed at the bottom of the water containing pool 7, and a pore net layer 70 is arranged at the bottom of the water containing pool; as shown in fig. 6-7, the spraying device includes a bottom plate 74, a plurality of long water diversion holes 71 arranged in parallel are distributed on the bottom plate 74, the long water diversion holes 71 are uniformly distributed with water diversion pieces 72, the water diversion pieces 72 are in an arc-shaped strip structure, and the top part of the water diversion pieces is gradually narrowed towards the bottom part to form a pointed shape; the interval length between the long water diversion holes 71 which are arranged in parallel is 2-6m, and the interval length of the diversion pieces 72 on the same long water diversion hole 71 is 2-6 cm. The fine mesh layer is made of a material resistant to water bubbles, such as nylon cloth; the pore net layer at the bottom of the water containing pool slowly flows rainwater, and simultaneously effectively blocks particle impurities and the like in the soil layer from entering pores, so that blockage is avoided; the water diversion slot hole leads water to the drainage piece, rainwater flows down from the drainage piece and is scattered, the drainage piece structure cannot be blocked by particles, and the drainage effect is good and smooth.
Corresponding to the lateral part of the plant pond, follow the bridge body bottom is equipped with cat ladder 9 towards the pier bottom, and this cat ladder is maintenance personal's convenient passageway.
As shown in fig. 8, the pressure reducing device 60 includes a cavity 61, a water inlet 62 is disposed on one side above the cavity 61, a water outlet 63 is disposed on the other side below the cavity 61, a plurality of transverse partition plates 64 are vertically disposed inside the cavity 61, one side of each transverse partition plate 64 is not fixed to the wall of the cavity 61, the other side is fixed to the wall of the cavity 61, and the transverse partition plates 64 divide the cavity 61 into slow flow passages which are communicated end to end; a buffer belt 65 with a convex rib structure is arranged at the front side of the diaphragm 64 which is not fixed on the wall of the cavity 61, and a net body 67 is arranged at the joint of the buffer belt 65 and the diaphragm 64. The water inlet 62 is provided with a fine-hole filter screen 68, and the aperture size of the fine-hole filter screen 68 is 0.05-0.12 cm; an impurity cavity 66 is arranged below the outer side of the water inlet 62 of the pressure reducing device, a water passage 69 is arranged at the bottom of the impurity cavity 66 and communicated with the bottom of the cavity 61, and a second fine-hole filter screen 690 is arranged on the water passage 69. Through the horizontal setting and the buffering area of pressure relief device's cross slab with rainwater decompression slow flow, avoid water pressure too big to erode the pier guiding device in next stage, cause this pier guiding section can't realize abundant filter effect.
It should be noted that, in this document, the term "comprises/comprising" or any other variation thereof is intended to cover a non-exclusive inclusion, so that a process, method, article or apparatus that comprises a list of elements does not include only those elements but also other elements not expressly listed or inherent to such process, method, article or apparatus.
The preferred embodiments and examples of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the embodiments and examples described above, and various changes can be made within the knowledge of those skilled in the art without departing from the concept of the present invention.
Claims (10)
1. The drainage purification system for the highway bridge comprises a rainwater guide pipe (1) arranged on a bridge body, and is characterized in that the rainwater guide pipe (1) comprises a bridge body flow guide section (10) and a pier flow guide section (20), the bridge body flow guide section (10) comprises a vertical part (101) extending downwards from the bridge floor, an inclined guide part (102) arranged at the lower end of the vertical part (101) and bent inwards, and a pressure reducing device (60) connected with the inclined guide part (102) and arranged on the lower wall of the bridge body, a sediment tank (103) is arranged at the bottom of the joint of the vertical part (101) and the inclined guide part (102), and a blocking device (11) is arranged in front of the sediment tank (103);
the blocking device (11) is composed of a fixed filter screen (110) and a movable filter screen (111) which are horizontally arranged, the fixed filter screen (110) is arranged on the front side of the water flow direction and is fixed at a water inlet of the inclined guide part (102), the movable filter screen (111) is arranged on the rear side of the fixed filter screen (110) and is arranged above the front side of the sediment tank (103), slide rod holes (112) are formed in two sides of the top of the movable filter screen (111), and springs (113) are arranged on the side edges of the slide rod holes (112) and are connected with the top of the fixed filter screen (110); a sliding rod (114) inserted into the sliding rod hole (112) is arranged in the pipe corresponding to the top positions of the fixed filter screen (110) and the movable filter screen (111);
and an arc-shaped upward-bent drainage wall (105) is arranged at the joint of the vertical part (101) and the slag settling tank (103) positioned at the rear side of the movable filter screen (111).
2. The drainage and purification system for highway bridges according to claim 1, wherein said movable screen (111) is an arc-shaped screen with a middle portion protruding backward, in the relaxed state of said spring, the net body in the middle portion of said movable screen (111) is protruded under said vertical portion (101), and the bottom edge of said fixed screen (110) is provided with a bumper post (115) made of corrosion-resistant rubber.
3. The water drainage and purification system for the highway bridge according to claim 1, wherein the tank body of the sediment tank (103) extends downwards from the inclined wall (40) at the bottom of the bridge body and is provided with an opening at the outwards protruding part, and the opening is provided with a sealing door (106).
4. The drainage purification system for the highway bridge according to claim 1, wherein a top cover (50) is arranged at the top opening of the rainwater guide pipe (1), and the top cover (50) comprises a cover body (501), a frame body (502) arranged below the cover body (501) and a support column (503) connecting the periphery of the frame body (502) and the cover body (501); the cover body (501) is higher than the bridge floor of a highway bridge, a notch (504) is arranged on the bridge floor corresponding to the top opening of the rainwater guide pipe (1), and a rainwater inlet is formed between the notch (504) and the cover body (501);
the mesh size of the movable filter screen (111) is 5-8mm, and the mesh size of the fixed filter screen (110) is 2-5 mm.
5. The drainage purification system for the highway bridge according to claim 1, wherein the pier diversion section (20) is sequentially provided with a buffer tank (2), a first-stage plant pond (3), a second-stage plant pond (4), a third-stage plant pond (5) and a fourth-stage plant pond (6) from the upper wall to the lower wall of the pier, the buffer tank (2) is connected with the pressure reducing device (60) through a connecting pipe (90), the bottom of the buffer tank (2) is provided with a spraying device and a water flowing pipe (21), the outlet of the water flowing pipe (21) is communicated with the first-stage plant pond (3), and the rainwater inlet of the water flowing pipe (21) is arranged at the upper edge of the side wall of the buffer tank (2); the bottom in first order plant pond (3), second grade plant pond (4) and third level plant pond (5) all evenly distributed a plurality of apertures (41), the bottom in first order plant pond (3), second grade plant pond (4) and third level plant pond (5) all is equipped with flourishing pond (7), the pool face area in flourishing pond (7) is greater than the bottom area that corresponds the plant pond, the bottom in flourishing pond (7) is equipped with sprinkler and flowing water branch pipe (22), the export of flowing water branch pipe (22) leads to next-stage plant pond, the bottom in fourth level plant pond (6) is equipped with the drain, the water pipe (8) that set up along the pier wall are connected to the drain.
6. The drainage purification system for public road bridges according to claim 5, characterized in that the first stage plant pond (3), the second stage plant pond (4), the third stage plant pond (5) and the fourth stage plant pond (6) each comprise, from top to bottom, a planting layer, a pebble layer, a planting soil layer and a gravel layer; one or more of physalis alkekengi, dromey clinopodium herb, ophiopogon japonicus and rhynchophylla is planted in the planting layer of the first-stage plant pond (3); one or more of rhizoma alismatis, allium fistulosum, aquatic mint, loosestrife, monochoria japonica, eichhornia crassipes and field thistle are planted in the planting layers of the second-stage plant pond (4), the third-stage plant pond (5) and the fourth-stage plant pond (6).
7. The drainage purification system for public road bridges of claim 5, characterized in that the convex lengths of the first stage plant pond (3), the second stage plant pond (4), the third stage plant pond (5) and the fourth stage plant pond (6) are increased in sequence compared with the bridge pier.
8. The water drainage purification system for road bridges as claimed in claim 5, wherein a plurality of fine holes (73) are distributed at the bottom of the water containing tank (7), and a fine hole mesh layer (70) is provided at the bottom thereof; the spraying device comprises a bottom plate (74), wherein a plurality of water diversion long holes (71) which are arranged in parallel are distributed on the bottom plate (74), the water diversion long holes (71) are uniformly distributed with flow diversion sheets (72), each flow diversion sheet (72) is of an arc-shaped strip structure, the top of each flow diversion sheet gradually narrows towards the bottom, and a pointed head shape is formed; the interval length between the water diversion long holes (71) which are arranged in parallel is 2-6m, and the interval length of the water diversion sheets (72) on the same water diversion long hole (71) is 2-6 cm.
9. A drainage purification system for public road bridges according to claim 5, wherein a ladder (9) is provided along the bottom of said bridge body toward the bottom of the pier, corresponding to the side of the plant pond.
10. The drainage purification system for the highway bridge according to claim 1, wherein the pressure reduction device (60) comprises a cavity (61), a water inlet (62) is arranged on one side above the cavity (61), a water outlet (63) is arranged on the other side below the cavity (61), a plurality of transverse partition plates (64) are vertically arranged in the cavity (61), one side of each transverse partition plate (64) is not fixed on the wall of the cavity (61), the other side is fixed on the wall of the cavity (61), and the transverse partition plates (64) divide the cavity (61) into slow flow channels which are communicated end to end; a buffer belt (65) with a convex edge structure is arranged at the front side of the diaphragm (64) which is not fixed on the wall of the cavity (61), and a net body (67) is arranged at the joint of the buffer belt (65) and the diaphragm (64);
a fine-hole filter screen (68) is arranged on the water inlet (62), and the aperture of the fine-hole filter screen (68) is 0.05-0.12 cm; an impurity cavity (66) is arranged below the outer side of a water inlet (62) of the pressure reducing device (60), a water passage (69) is formed in the bottom of the impurity cavity (66) and communicated with the bottom of the cavity (61), and a second pore filter screen (690) is arranged on the water passage (69).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811635935.1A CN109574404B (en) | 2018-12-29 | 2018-12-29 | Drainage purification system for highway bridge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811635935.1A CN109574404B (en) | 2018-12-29 | 2018-12-29 | Drainage purification system for highway bridge |
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| Publication Number | Publication Date |
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| CN109574404A CN109574404A (en) | 2019-04-05 |
| CN109574404B true CN109574404B (en) | 2022-01-25 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH10338908A (en) * | 1997-06-05 | 1998-12-22 | Shingiken Consultant:Kk | Road surface drainage system |
| CN206599732U (en) * | 2017-03-06 | 2017-10-31 | 安素梅 | A kind of bridge drainage system |
| CN207672420U (en) * | 2017-12-03 | 2018-07-31 | 浙江临金高速公路有限公司 | Highway bridge runoff is collected and Ecological Disposal purification system |
| CN207685241U (en) * | 2017-12-22 | 2018-08-03 | 楚雄师范学院 | A kind of automation grape wine filter plant |
| CN108166386A (en) * | 2018-01-23 | 2018-06-15 | 浙江建设职业技术学院 | A kind of drainage system and its construction method for highway bridge |
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