CN114808679A - Intelligent environment-friendly bridge rainwater drainage system - Google Patents
Intelligent environment-friendly bridge rainwater drainage system Download PDFInfo
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- CN114808679A CN114808679A CN202210287501.7A CN202210287501A CN114808679A CN 114808679 A CN114808679 A CN 114808679A CN 202210287501 A CN202210287501 A CN 202210287501A CN 114808679 A CN114808679 A CN 114808679A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 64
- 238000012544 monitoring process Methods 0.000 claims abstract description 42
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- 230000000694 effects Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
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- 230000004048 modification Effects 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 101100366940 Mus musculus Stom gene Proteins 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
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- 229910021529 ammonia Inorganic materials 0.000 description 1
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/08—Damp-proof or other insulating layers; Drainage arrangements or devices ; Bridge deck surfacings
- E01D19/086—Drainage arrangements or devices
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/02—Arrangement of sewer pipe-lines or pipe-line systems
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/04—Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
- E03F5/0401—Gullies for use in roads or pavements
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F7/00—Other installations or implements for operating sewer systems, e.g. for preventing or indicating stoppage; Emptying cesspools
- E03F7/02—Shut-off devices
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F2201/00—Details, devices or methods not otherwise provided for
- E03F2201/20—Measuring flow in sewer systems
Abstract
The invention discloses an intelligent environment-friendly bridge rainwater drainage system which comprises a drainage pipeline and a drainage control system, wherein the drainage pipeline comprises a rainwater port; the transverse drainage pipeline is provided with a plurality of transverse drainage pipes, the water inlet of each transverse drainage pipe is communicated with one of the rainwater inlets, and the water outlet of each transverse drainage pipe extends out of the bridge; the longitudinal drainage pipeline is longitudinally arranged at the bottom edge of the bridge; wherein, the longitudinal drain pipe is communicated with the transverse drain pipe and the water outlet of the longitudinal drain pipeline is communicated with the municipal sewage pipe network; the drainage control system comprises a monitoring assembly, a first control valve, a second control valve and a monitoring controller, wherein the monitoring assembly is arranged in the transverse drainage pipe and is close to the rainwater inlet. According to the invention, the intelligent classified discharge of rainwater is realized through the automatic switching of the drainage pipelines, the rainwater with higher pollution degree is effectively prevented from being directly discharged into the external water body, the external water resource is protected from being polluted, and the device is suitable for municipal bridges, river-crossing bridges or river-crossing bridges and has a wide application range.
Description
Technical Field
The invention relates to the field of bridge rainwater drainage, in particular to an intelligent environment-friendly bridge rainwater drainage system.
Background
The bridge deck drainage system is an important component of bridge design, and has the main function of quickly draining rainwater or snow water melted by accumulated snow falling on the bridge deck out of the bridge deck so as to prevent the accumulated water or rainwater on the bridge deck from eroding and damaging concrete beams below and improve the safety of the bridge. At the early stage of rainfall, acid gas, automobile exhaust, mill's waste gas in the air have been dissolved to the rainwater to wash the bridge floor, lead to containing a large amount of pollutants in the rainwater of initial stage, the pollution degree is higher, surpass the pollution degree of municipal sewage even, and traditional bridge floor drainage system mostly collects to the downspout and discharges into the river course or directly discharge into in nature waters, cause the water pollution of certain degree for the natural water. Therefore, how to avoid the initial rainwater on the bridge deck from being directly discharged to natural water (or municipal rainwater pipe network) to reduce water pollution is very important for the industry.
Disclosure of Invention
In view of this, the invention provides an intelligent environment-friendly bridge rainwater drainage system, which effectively prevents initial rainwater (or snow water) with high pollution degree from being directly drained into a municipal rainwater pipe network or a river channel, and protects water resources.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention relates to a drainage pipeline and a drainage control system, wherein the drainage pipeline comprises:
the plurality of rain openings are arranged on the bridge deck of the bridge at intervals along the longitudinal direction of the bridge;
the transverse drainage pipeline is provided with a plurality of transverse drainage pipes transversely arranged on the bridge floor, the water inlet of each transverse drainage pipe is communicated with one of the rainwater inlets, and the water outlet of each transverse drainage pipe extends out of the bridge;
the longitudinal drainage pipeline is longitudinally arranged at the bottom edge of the bridge and is provided with at least one section of longitudinal drainage pipe; the longitudinal drain pipe is communicated with the transverse drain pipe, and a water outlet of the longitudinal drain pipeline is communicated with a municipal sewage pipe network;
the drainage control system comprises a monitoring assembly for monitoring the quality of rainwater, a first control valve, a second control valve and a monitoring controller, wherein the monitoring assembly is arranged in the transverse drainage pipe and is close to the rainwater port;
the monitoring assembly transmits monitored water quality signals to the monitoring controller, and the monitoring controller controls the first control valve and the second control valve to be opened and closed.
The beneficial effects are that: the invention connects the horizontal drain pipe and the longitudinal drain pipe together, and realizes the classified drainage of rainwater or snow water through the opening and closing of the first control valve and the second control valve in rainy and snowy weather. When the quality of the rainwater or the snow water meets the relevant standard, the first control valve is opened, the second control valve is closed, and the rainwater is directly drained into a water area along the transverse drain pipe; when the quality of the rainwater or the snow water does not meet the relevant standard, the first control valve is closed, the second control valve is opened, the rainwater is discharged to a municipal sewage pipe network through the second drainage pipeline, the rainwater or the snow water with higher pollution degree is effectively prevented from being directly or indirectly discharged to natural water areas (such as rivers, riverways and the like), and the water environmental pollution is reduced.
Furthermore, every horizontal drain pipe extends downstream along the bridge floor slope from its water inlet, and the extension section of horizontal drain pipe is vertical decurrent elbow structure, makes the rainwater rely on the dead weight to discharge the bridge floor smoothly.
As a further improvement, the edge of the beam body of the bridge is provided with the mounting seat, the longitudinal drainage pipeline is laid in the mounting groove of the mounting seat through a plurality of pipeline clamps in U-shaped structures, the fixing effect of the longitudinal drainage pipeline is effectively guaranteed, and the phenomenon that the longitudinal drainage pipe displaces to influence drainage is avoided to the maximum extent.
Furthermore, the longitudinal drain pipe is arranged below the transverse drain pipe, the transverse drain pipe and the longitudinal drain pipe are connected together through a connecting pipe which is obliquely arranged, and an included angle alpha between the connecting pipe and the transverse drain pipe is an acute angle. The beneficial effects are that: the connecting pipe is arranged in an inclined mode, so that water can be drained conveniently, rainwater on the bridge floor can be automatically drained into the longitudinal drainage pipeline under the action of dead weight, and rainwater drainage resistance is reduced.
As a further improvement, the first control valve is a first electromagnetic valve arranged at the water outlet end part of the transverse drain pipe; the second control valve is a second electromagnetic valve arranged on the connecting pipe, and the second electromagnetic valve is close to the water inlet end of the connecting pipe. The beneficial effects are that: first solenoid valve and second solenoid valve all communicate with monitor controller, realize horizontal drainage pipe way and vertical drainage pipe way's automatic switch-over, and then realize the categorised emission of rainwater, effectively avoid the higher rainwater of pollution degree directly or indirectly to discharge into the nature water in, reduce water pollution.
In another preferred embodiment of the present invention, the transverse drainage pipe and the longitudinal drainage pipe are arranged in a crossed manner, the first control valve is arranged on the transverse drainage pipe and located at the downstream of the crossed point, the second control valve is arranged on the longitudinal drainage pipe, and the present invention is particularly suitable for bridges with short bridge body length and generally consistent water quality, and the longitudinal drainage pipe is arranged in a reserved hole of the bridge.
As a further improvement, the monitoring assembly comprises a plurality of probes for monitoring water quality; the monitoring controller is arranged in a waterproof box at the edge of the bridge. The beneficial effects are that: the monitoring assembly is provided with a plurality of probes, can realize the monitoring of different index information in water quality, can comprehensively analyze the water quality of rainwater, ensures that directly-discharged rainwater meets the requirements of relevant specifications, and reduces water pollution.
The intelligent environment-friendly bridge rainwater drainage system further comprises a power supply assembly, wherein a power supply output end of the power supply assembly is connected with a power supply input end of the drainage control system, and a power supply input end of the power supply assembly is connected with a municipal power supply pipe network or a street lamp solar power generation system. The beneficial effects are that: the intelligent environment-friendly bridge rainwater drainage system can utilize the electric energy of the solar power generation system above the street lamp, thereby saving energy.
The invention has the advantages that the device is provided with the transverse drainage pipeline communicated with the outside and the longitudinal drainage pipeline communicated with the municipal pollution pipe network, intelligent classified drainage of rainwater can be realized through automatic switching of the two drainage pipelines, rainwater with higher pollution degree is effectively prevented from being directly drained into the outside water body, the outside water resource is protected from being polluted, and the device is not only suitable for municipal bridges, but also suitable for cross-river or river bridges, and has wide application range.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 2 is a schematic block diagram of a circuit according to a first embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a second embodiment of the present invention.
Fig. 4 is a connection view of the transverse drain pipe and the longitudinal drain pipe in the second embodiment of the present invention.
Detailed Description
The following describes embodiments of the present invention in detail with reference to the accompanying drawings, which are implemented on the premise of the technical solution of the present invention, and give detailed implementation manners and specific operation procedures, but the scope of the present invention is not limited to the following embodiments.
Implementation mode one
As shown in fig. 1 and 2, the intelligent environment-friendly bridge rainwater drainage system comprises a drainage pipeline and a drainage control system; the drainage pipeline comprises a plurality of rain openings 1, a transverse drainage pipeline and a longitudinal drainage pipeline, and the plurality of rain openings 1 are arranged on the bridge deck 4.1 of the bridge at intervals along the longitudinal direction of the bridge; wherein:
the transverse drain pipe 2 is provided with a plurality of transverse drain pipes 2 (the transverse drain pipes 2 are transversely arranged) transversely arranged on a bridge floor 4.1, the transverse drain pipes 2 correspond to the rainwater inlets 1 one by one, a water inlet of each transverse drain pipe 2 is communicated with one rainwater inlet 1, a water outlet of each transverse drain pipe 1 extends out of the bridge, each transverse drain pipe 2 is obliquely and downwardly arranged along the gradient of the bridge floor from the corresponding rainwater inlet 1, the transverse drain pipes 2 extend out of the bridge floor, and an extension section (namely a part positioned on the outer side of the bridge) of each transverse drain pipe 2 is of a vertically and downwardly bent elbow structure, so that rainwater of each transverse drain pipe 2 is completely drained out of the bridge floor 4.1 by means of self weight, and drainage resistance is reduced;
the longitudinal drainage pipeline is composed of a plurality of sections of longitudinal drainage pipes 3 which are connected together (of course, the longitudinal drainage pipeline can also be a longitudinal drainage pipe 3 according to the length of the bridge), the longitudinal drainage pipe 3 is arranged longitudinally along the bridge, the longitudinal drainage pipe 3 is positioned below the transverse drainage pipe 2, the longitudinal drainage pipe 3 is provided with connecting pipes 6 which are in one-to-one correspondence with the transverse drainage pipes 2, the longitudinal drainage pipe 3 is respectively communicated with the transverse drainage pipes 2 through a plurality of connecting pipes 6, the connecting pipes 6 extend downwards from the tops of the connecting pipes in an inclined manner, and an included angle alpha between the central axis of each connecting pipe 6 and a vertical plane is not more than 70 degrees, so that rainwater in the transverse drainage pipes 2 is automatically drained into the longitudinal drainage pipe 3 by virtue of self weight;
the water outlet of the longitudinal drainage pipeline is communicated with a municipal sewage pipe network, so that rainwater which does not meet the discharge requirement is directly discharged into a municipal pollution pipe network through the longitudinal drainage pipeline, enters a municipal pollution treatment system, is treated to be qualified and then is discharged into a natural water body.
As shown in fig. 2, the bottom edge of the beam body 4.2 of the bridge is provided with a mounting seat 4.3 (longitudinally arranged), and the longitudinal drain pipe 3 is laid in the mounting seat 4.3 through a plurality of pipeline clamps 7 in a U-shaped structure, so that the fixing effect of the longitudinal drain pipeline is effectively ensured, and the longitudinal drain pipe 3 is prevented from displacement to influence drainage to the maximum extent. In addition, the length of the longitudinal drain pipe 3 can be flexibly adjusted according to the total length of the bridge and the local rainfall.
As shown in fig. 1, the drainage control system comprises a monitoring component for monitoring the quality of rainwater, a first control valve (i.e. a first electromagnetic valve 8.1), a second control valve (i.e. a second electromagnetic valve 8.2) and a monitoring controller 10, wherein a water quality monitoring part is arranged in the transverse drainage pipe 2 and is close to the rainwater port 1; the first electromagnetic valve 8.1 is arranged at the water outlet end of the transverse drain pipe 2 to control the drainage of the transverse drain pipe 2, and the second electromagnetic valve 8.2 is arranged on the connecting pipe 6 to control the on-off conditions of the longitudinal drain pipe 3 and the transverse drain pipe 2, so that the foundation is laid for realizing classified drainage. During rainy weather or rainwater melt, the quality of water signal transmission that the monitoring subassembly will monitor is to monitor controller 10, monitor controller carries out the analysis to the quality of water signal that receives, and according to the opening and closing of the quality of water data control first solenoid valve 8.1 after the analysis and second solenoid valve 8.2, with the automatic switch-over of realizing horizontal drain pipe 2 and longitudinal drain pipe 3, make rainwater (or snow water) that do not conform to the emission requirement flow into municipal sewer pipe network through longitudinal drain line, avoid polluting comparatively serious water and directly merge the river course into.
As shown in fig. 1, the monitoring assembly 9 is close to the water inlet of the transverse drain pipe 2, it includes the first probe (i.e. turbidity sensor) that the interval set up in the transverse drain pipe 2, the second probe (i.e. dissolved oxygen sensor), the third probe (COD sensor), the fourth probe (i.e. ammonia nitrogen sensor), the fifth probe (i.e. BOD sensor) and the sixth probe (i.e. pH probe), the quality of water signal transmission to the monitoring controller 10 that a plurality of probes will monitor, the monitoring controller 10 is handled with the analysis quality of water to the signal of monitoring, make the rainwater that accords with discharge standard directly discharge and do not accord with discharge standard discharge again after municipal pollution treatment system handles, effectively avoid the pollutant in the rainwater directly to discharge into external water, avoid water pollution. During actual installation, the monitoring assembly and the monitoring main controller can be matched with a commercially available multi-parameter water quality monitor; the probe in the transverse drain pipe 2 can be increased flexibly according to local drainage indexes, and for example, a temperature sensor, a total phosphorus sensor, a total ammonia sensor and the like can be arranged in the transverse drain pipe 2.
During actual construction, the drainage pipelines of the bridge rainwater drainage system are symmetrically arranged around the longitudinal center line of the bridge, so that rainwater flows into the transverse drainage pipes 2 at two sides of the bridge from the center of the bridge deck 4.1 to realize quick drainage of the bridge deck 4.1; in addition, when actually installing, the drainage control system is matched with the transverse drainage pipes 2 to ensure that the rainwater discharged by each transverse drainage pipe 2 meets the drainage requirement of the industry standard.
During actual installation, the monitoring controller is arranged in a waterproof box on the fixed foundation of the railing of the bridge to protect the monitoring controller; the intelligent environment-friendly bridge rainwater drainage system also comprises a power supply assembly, wherein the power output end of the power supply assembly is connected with the power input end of the drainage control system, and the power input end of the power supply assembly is connected with a municipal power supply pipe network or a street lamp solar power generation system, so that the electric energy converted from solar energy can be fully utilized, and the energy is saved; the municipal power supply pipe network is used as standby power supply to ensure the normal work of the drainage control system.
The intelligent environment-friendly bridge rainwater drainage system disclosed by the invention has the working process as follows: in rainy days (or snow melting), because the bridge floor 4.1 is usually that the middle part is higher and both ends are lower in the width direction, rainwater on the bridge floor 4.1 flows to both ends and gets into horizontal drain pipe 2 by inlet for stom water 1 along bridge floor 4.1 this moment, and the quality of water signal that the detection subassembly was monitoring the rainwater in real time to the quality of water signal transmission who will monitor to monitor controller 10, monitor controller 10 carries out the analysis to the quality of water signal that receives and according to the switch of analysis result control first solenoid valve 8.1 and second solenoid valve 8.2. Specifically, the method comprises the following steps:
when the quality of the rainwater or the snow water meets the relevant standard, the monitoring controller controls the first electromagnetic valve 8.1 to be opened and the second electromagnetic valve 8.2 to be closed, the rainwater or the snow water automatically drains along the obliquely arranged transverse drain pipe 2, and the rainwater meeting the drainage index can be directly drained into natural water areas for bridges across the river or across the river;
when the quality of the rainwater or the snow water does not meet the relevant discharge standard, the monitoring controller 10 controls the first electromagnetic valve 8.1 to be closed and the second electromagnetic valve 8.2 to be opened, the rainwater flows into the longitudinal drainage pipeline through the transverse drainage pipe 2 and is discharged to a municipal sewage pipe network through the longitudinal drainage pipeline, the rainwater or the rainwater with higher pollution degree is effectively prevented from being directly or indirectly discharged to natural water areas (such as rivers, riverways and the like), and the water environmental pollution is reduced.
The automatic rainwater drainage system can realize flexible drainage of rainwater through automatic switching of the two drainage pipelines, effectively avoid rainwater with higher pollution degree from being directly drained into external water, protect external water resources from being polluted, is suitable for municipal bridges, river-crossing bridges or river-crossing bridges, and has wide application range.
Second embodiment
The present embodiment differs from the first embodiment in that: in the embodiment, the transverse drain pipe 2 and the longitudinal drain pipe 3 are arranged in a crossed manner, and the longitudinal drain pipe 3 is arranged in a reserved hole of the bridge; the longitudinal drain 3 has a cross-over point with the transverse drain 2, a first solenoid valve 8.1 being arranged on the transverse drain downstream of the cross-over point, and a second solenoid valve 8.2 being arranged on the longitudinal drain 3 upstream and downstream of the cross-over point, as shown in particular in fig. 3-4. When the water quality meets the discharge standard, the first electromagnetic valve 8.1 is opened and the second electromagnetic valve 8.2 is closed, so that the rainwater is directly discharged into the water body through the transverse drain pipe 2; when the quality of the rainwater does not meet the local discharge standard, the first electromagnetic valve 8.1 is closed and the second electromagnetic valve 8.2 is opened, so that the rainwater enters the municipal sewage system along the longitudinal drain pipe 3. The embodiment is particularly suitable for the conditions that the bridge length is short and the rainwater quality of the bridge deck is generally consistent.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" when they are used are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.
Finally, it should be emphasized that the above-described embodiments are merely preferred embodiments of the present invention, and not limitative of the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and equivalents may be made to the embodiments described in the foregoing without inventive faculty, or that equivalents may be substituted for elements thereof. Therefore, any modifications, equivalents, improvements, etc., which come within the spirit and principle of the present invention, should be construed as being included in the scope of the present invention.
Claims (8)
1. The utility model provides an intelligence environment-friendly bridge rainwater drainage system which characterized in that: including drain line and drainage control system, the drain line includes:
the plurality of rain openings are arranged on the bridge deck of the bridge at intervals along the longitudinal direction of the bridge;
the transverse drainage pipeline is provided with a plurality of transverse drainage pipes transversely arranged on the bridge floor, the water inlet of each transverse drainage pipe is communicated with one of the rainwater inlets, and the water outlet of each transverse drainage pipe extends out of the bridge;
the longitudinal drainage pipeline is longitudinally arranged at the bottom edge of the bridge and is provided with at least one section of longitudinal drainage pipe; the longitudinal drain pipe is communicated with the transverse drain pipe, and a water outlet of the longitudinal drain pipeline is communicated with a municipal sewage pipe network;
the drainage control system comprises a monitoring assembly for monitoring the quality of rainwater, a first control valve, a second control valve and a monitoring controller, wherein the monitoring assembly is arranged in the transverse drainage pipe and is close to the rainwater port;
the monitoring assembly transmits monitored water quality signals to the monitoring controller, and the monitoring controller controls the first control valve and the second control valve to be opened and closed.
2. The intelligent environment-friendly bridge rainwater drainage system according to claim 1, characterized in that: every horizontal drain pipe extends downstream along the bridge floor slope from its water inlet, and the extension section of horizontal drain pipe is vertical decurrent elbow structure.
3. The intelligent environment-friendly bridge rainwater drainage system according to claim 1 or 2, wherein: the edge of the beam body of the bridge is provided with a mounting seat, and the longitudinal drainage pipeline is laid in a mounting groove of the mounting seat through a plurality of pipeline clamps in U-shaped structures.
4. The intelligent environment-friendly bridge rainwater drainage system according to claim 3, characterized in that: the longitudinal drainage pipe is located below the transverse drainage pipe, the transverse drainage pipe and the longitudinal drainage pipe are connected together through a connecting pipe which is obliquely arranged, and an included angle alpha between the connecting pipe and the transverse drainage pipe is an acute angle.
5. The intelligent environment-friendly bridge rainwater drainage system according to claim 4, wherein: the first control valve is a first electromagnetic valve arranged at the water outlet end part of the transverse drain pipe; the second control valve is a second electromagnetic valve arranged on the connecting pipe, and the second electromagnetic valve is close to the water inlet end of the connecting pipe.
6. The intelligent environment-friendly bridge rainwater drainage system according to claim 1, characterized in that: the transverse drain pipe and the longitudinal drain pipe are arranged in a crossed mode, the first control valve is arranged on the transverse drain pipe and located at the downstream of the crossed point, and the second control valve is arranged on the longitudinal drain pipe.
7. The intelligent environment-friendly bridge rainwater drainage system according to claim 1, characterized in that: the monitoring assembly comprises a plurality of monitoring probes for monitoring rainwater quality information; the monitoring controller is arranged in a waterproof box on the fixed foundation of the railing of the bridge.
8. The intelligent environment-friendly bridge rainwater drainage system according to claim 1, characterized in that: the drainage control system is characterized by further comprising a power supply assembly, wherein the power output end of the power supply assembly is connected with the power input end of the drainage control system, and the power input end of the power supply assembly is connected with a municipal power supply pipe network or a street lamp solar power generation system.
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| CN202210287501.7A CN114808679B (en) | 2022-03-23 | 2022-03-23 | Intelligent environment-friendly bridge rainwater drainage system |
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| CN202210287501.7A CN114808679B (en) | 2022-03-23 | 2022-03-23 | Intelligent environment-friendly bridge rainwater drainage system |
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