Drainage structure applied to municipal bridge and drainage method thereof

Abstract

The application discloses a drainage structure applied to a municipal bridge and a drainage method thereof. The drainage structure comprises a sidewalk drainage system, a bridge deck drainage system and a computer terminal. The bridge deck drainage system comprises a plurality of groups of water inlets arranged on the bridge deck of the municipal bridge, water guide pipes connected with the water inlets, backwashing assemblies arranged in the water guide pipes, drainage pipelines for connecting the water guide pipes and air path assemblies for supplying flushing air to the backwashing assemblies. The drainage pipeline comprises four-way pipes fixedly connected to the ends of the corresponding water guide pipes, connecting pipes arranged between two adjacent groups of four-way pipes, electromagnetic flow meters arranged on one group of connecting pipes and electromagnetic valves arranged on the corresponding four-way pipes. The application can automatically adjust the drainage mode according to the drainage situation, realize rapid drainage and reduce the water flow impact on the drainage pipeline, and can automatically clean the water inlet area, so that the probability of delayed drainage caused by blockage is reduced.

Description

Technical Field

[0001] This invention relates to the field of municipal bridge drainage technology, and in particular to drainage structures applied to municipal bridges, as well as drainage methods using said drainage structures. Background Technology

[0002] In order to quickly drain water from the bridge surface and prevent rainwater from accumulating on the bridge deck and seeping into the beams, thus affecting the durability of the bridge, the following design is conventionally adopted in bridge design: in addition to setting longitudinal and transverse slope drainage on the bridge deck, a certain number of drainage pipes are also set to form a complete drainage system.

[0003] However, conventional drainage systems have a single drainage mode. When the water volume is large, the drainage pipes under this single mode are subjected to a large impact from the water flow, resulting in significant losses. At the same time, as the drainage proceeds, dirt on the bridge surface will accumulate at the inlet, causing a certain degree of blockage and leading to untimely drainage. Summary of the Invention

[0004] In view of the shortcomings of the prior art described above, the purpose of this invention is to provide a drainage structure for use in municipal bridges to ensure smooth drainage and achieve rapid discharge.

[0005] Drainage structures used in municipal bridges include:

[0006] Sidewalk drainage systems are installed on both sides of the deck of municipal bridges; and

[0007] The bridge deck drainage system includes several sets of water inlets located on the bridge deck of a municipal bridge, water pipes connected to the corresponding water inlets, backwashing components installed in the water pipes, and drainage pipes for connecting the water pipes.

[0008] The drainage pipeline includes a four-way pipe fixedly connected to the end of the corresponding water inlet pipe, a connecting pipe installed between two adjacent sets of four-way pipes, an electromagnetic flow meter installed on one of the connecting pipes, and a solenoid valve installed on the corresponding four-way pipe.

[0009] The aforementioned drainage structure can automatically adjust the drainage mode according to the actual drainage conditions, achieving rapid discharge while reducing the impact of water flow on the drainage pipes, reducing maintenance costs, and improving the reliability of drainage operation. In addition, it can automatically clean the water inlet area to ensure its unobstructed flow, thereby reducing the chance of untimely drainage due to siltation.

[0010] In one embodiment, the sidewalk drainage system includes a sidewalk base layer, a water storage tank disposed within the sidewalk base layer, a water inlet channel disposed on the sidewalk base layer and connected to the water storage tank, and an overflow channel.

[0011] Furthermore, the sidewalk base layer is obtained by precast concrete; the water diversion channel is opened through the corresponding side wall of the sidewalk base layer, and the bottom surface of the water diversion channel is flush with the bridge deck; the overflow channel is located above the water storage tank, and the overflow channel is opened through the corresponding other side wall of the cast-in-place sidewalk base layer.

[0012] Furthermore, the number of water intake channels is several groups, the groups of water intake channels are distributed in parallel, and the water intake channels are equipped with a barrier net.

[0013] In one embodiment, several sets of water inlets are evenly distributed along both sides, with the water inlets on the same side being distributed in parallel; a groove for inserting a water pipe is opened through the municipal bridge, and an adhesive is filled between the water pipe and the municipal bridge.

[0014] In one embodiment, the backwashing assembly includes a steel pipe positioned upright at the center of the corresponding water inlet pipe, a one-way valve fixedly installed on the steel pipe facing the corresponding water inlet, and a branch pipe welded to the bottom end of the steel pipe; the steel pipe is suspended in the water inlet pipe by a support rod, and the branch pipe is vertically fixedly installed through the corresponding side wall of the corresponding water inlet pipe.

[0015] Furthermore, the bridge deck drainage system also includes an air circuit assembly for charging flushing air into the backwashing assembly; the air circuit assembly consists of an air pipe, a tee pipe and an air source, with the air pipe installed at the end of the corresponding branch pipe extending out of the water inlet pipe.

[0016] In one embodiment, the four-way pipe is located below the superstructure of the municipal bridge and has four ports: A, B, C, and D. Port A is connected to the water inlet pipe, ports B and C are connected to the connecting pipe, and a solenoid valve is used to control the opening and closing of port D. The connecting pipe is connected to the municipal bridge through a pipe rack and is arranged horizontally.

[0017] Furthermore, the bridge deck drainage system also includes a computer terminal; the computer terminal includes a memory, a processor, and a computer program stored in the memory and executable on the processor; when the memory executes the program, it drives the opening of the solenoid valve.

[0018] A method for venting water flow includes the following steps:

[0019] S1 cleans the inlet area of ​​the drainage structure to remove dirt accumulated at the inlet;

[0020] S2 detects the water flow velocity in the drainage pipe and changes the drainage mode based on the measured water flow velocity;

[0021] The drainage structure is the same as the drainage structure used in municipal bridges.

[0022] Compared with the prior art, the beneficial effects of the present invention are:

[0023] The pedestrian drainage system designed in this invention shares the discharge capacity of the traditional single bridge deck drainage mode, avoiding the situation where water accumulates on the bridge deck between the two pedestrian walkways. At the same time, it can retain some water as a water source for cleaning the bridge deck, and can also be used in conjunction with the guardrail flower boxes to continuously replenish the flower boxes with water-absorbing ropes that are pre-embedded.

[0024] This invention can automatically adjust the drainage mode according to the actual drainage situation. For example, when the drainage volume is large, the drainage structure automatically opens the backup discharge channel to share the drainage volume, achieving rapid discharge while reducing the water flow impact on the connecting pipe, extending the service life of the drainage pipe in the entire drainage pipeline, reducing maintenance costs, and improving the reliability of drainage operation.

[0025] This invention addresses the issue that when vehicles are driving on a bridge, debris and plastic residue may accumulate on the bridge surface, causing blockages at the drainage inlet and affecting drainage efficiency. In this embodiment, a backwashing component is installed to automatically clean the water inlet area, ensuring its smooth flow and reducing the likelihood of untimely drainage due to blockages. Attached Figure Description

[0026] Figure 1 The diagram shown is a schematic diagram of the drainage structure for municipal bridges provided by the present invention.

[0027] Figure 2 As shown Figure 1 Side view.

[0028] Figure 3 As shown Figure 2 Perspective view of A in the middle.

[0029] Figure 4 As shown Figure 3 The diagram shows the backwashing process, with arrows indicating the direction of gas flow.

[0030] Figure 5 The diagram shown is a connection diagram of a four-way pipe in a drainage structure for municipal bridges provided by the present invention.

[0031] Figure 6 The diagram shown is a drainage structure for municipal bridges provided by the present invention, with arrows indicating the direction of water flow.

[0032] Explanation of main component symbols

[0033] 1. Sidewalk base layer; 2. Water inlet trough; 3. Water storage tank; 4. Overflow trough; 5. Water inlet; 6. Water pipe; 7. Steel pipe; 8. Check valve; 9. Branch pipe; 10. Four-way pipe; 11. Connecting pipe; 12. Electromagnetic flow meter; 13. Solenoid valve.

[0034] The above description of the main component symbols, together with the accompanying drawings and specific embodiments, provides a more detailed explanation of the present invention. Detailed Implementation

[0035] The present invention will now be described in detail with reference to the accompanying drawings.

[0036] Example 1

[0037] Please see Figure 1-6 This embodiment provides a drainage structure for use on municipal bridges, which includes a pedestrian drainage system, a bridge deck drainage system, and a computer terminal installed on both sides of the bridge deck.

[0038] The sidewalk drainage system includes a sidewalk base layer 1, a water storage tank 3 within the sidewalk base layer 1, a water intake channel 2 connected to the water storage tank 3 and situated on the sidewalk base layer 1, and an overflow channel 4. The sidewalk base layer 1 is precast concrete. The water intake channel 2 is constructed along the corresponding side wall of the sidewalk base layer 1, with its bottom surface flush with the bridge deck. Several sets of water intake channels 2 are arranged in parallel, and each channel 2 is equipped with a barrier net to prevent debris from entering the water storage tank 3 and causing blockages. The overflow channel 4 is located above the water storage tank 3 and is constructed along the corresponding side wall of the cast-in-place sidewalk base layer 1.

[0039] To separate pedestrians and vehicles and ensure pedestrian safety, municipal bridges are equipped with guardrails (not shown) for separation. Furthermore, the sidewalks are elevated above the bridge surface. This design aims to provide a buffer in the event of a vehicle collision where avoidance is impossible. The sidewalk drainage system in this embodiment alleviates the drainage burden of traditional single-bridge-surface drainage systems, preventing water accumulation on the bridge surface between the sidewalks. Simultaneously, a water storage tank 3 retains some water, which can be used for bridge surface cleaning and, in conjunction with the guardrail flower boxes, continuously replenishes the flower boxes with pre-embedded absorbent ropes.

[0040] The drainage process of the pedestrian walkway drainage system in this embodiment is as follows: rainwater flows into the water storage tank 3 along the water inlet trough 2. When the water level in the water storage tank 3 is higher than the overflow trough 4, the excess water flows down to both sides of the bridge along the overflow trough 4. When cleaning and maintaining the bridge deck, the water remaining in the water storage tank 3 is used as a water source on-site. It should be noted that, in order to facilitate the use of the water storage tank 3, a water intake (not shown in the figure) connected to the water storage tank 3 is provided on the pedestrian walkway base layer 1. Normally, the water intake is sealed with a cover, which will not be described in detail here.

[0041] The bridge deck drainage system includes several sets of water inlets 5 located on the bridge deck of the municipal bridge, water pipes 6 connected to the corresponding water inlets 5, backwashing components installed in the water pipes 6, drainage pipes for connecting the water pipes 6, and air circuit components for charging the backwashing components with flushing air.

[0042] Several sets of inlets 5 are evenly distributed along both sides, with the inlets 5 on the same side being parallel to each other. A trench for inserting the water pipe 6 is cut through the municipal bridge, and the water pipe 6 and the municipal bridge are filled with adhesive. The drainage pipeline includes a four-way pipe 10 fixedly connected to the end of the corresponding water pipe 6, a connecting pipe 11 installed between two adjacent sets of four-way pipes 10, an electromagnetic flow meter 12 installed on one of the connecting pipes 11, and a solenoid valve 13 installed on the corresponding four-way pipe 10.

[0043] The four-way pipe 10 is located below the superstructure of the municipal bridge and has four ports: A, B, C, and D. Port A is connected to the water inlet pipe 6, ports B and C are connected to the connecting pipe 11, and the solenoid valve 13 is used to control the opening and closing of port D. The connecting pipe 11 is connected to the municipal bridge via a pipe rack and is arranged horizontally.

[0044] The computer terminal includes a memory, a processor, and a computer program stored in the memory and executable on the processor. When the memory executes the program, it drives the opening of the solenoid valve 13. In this embodiment, the electromagnetic flowmeter 12 and the solenoid valve 13 are linked based on the computer terminal, and the timed opening of the backwashing assembly is controlled. The computer terminal can be a computer or other intelligent devices, which will not be elaborated upon here.

[0045] When the flow velocity measured by the electromagnetic flowmeter 12 is not higher than 1.0 m / s, the solenoid valve 13 is in the closed state. At this time, the D port of the four-way pipe 10, which serves as a backup drainage channel, is not open, and water flows directionally along the connecting pipe 11. When the flow velocity measured by the electromagnetic flowmeter 12 exceeds 1.0 m / s, the solenoid valve 13 is activated. At this time, the D port of the four-way pipe 10 is opened to increase the drainage channels and facilitate rapid drainage. In this embodiment, the drainage mode is automatically adjusted based on the aforementioned settings. When the drainage volume is large, the drainage structure automatically opens the backup drainage channel to share the drainage volume, achieving rapid drainage while reducing the water flow impact on the connecting pipe 11, extending the service life of the drainage pipes in the entire drainage pipeline, reducing maintenance costs, and improving the reliability of drainage operation.

[0046] The backwash assembly includes a steel pipe 7 positioned vertically at the center of the corresponding water inlet pipe 6, a one-way valve 8 fixedly installed on the steel pipe 7 facing the corresponding water inlet 5, and a branch pipe 9 welded to the bottom end of the steel pipe 7. The steel pipe 7 is suspended in the water inlet pipe 6 by a support rod, and the branch pipe 9 is vertically fixed and installed through the corresponding side wall of the water inlet pipe 6. The air circuit assembly consists of an air pipe, a tee pipe, and an air source. The air pipe is installed at the end of the corresponding branch pipe 9 that extends out of the water inlet pipe 6.

[0047] In response to the issue that bridge surfaces may accumulate debris and plastic during traffic, which can cause blockages at the inlet as drainage progresses, thus affecting drainage efficiency, this embodiment includes a backwashing component to automatically clean the inlet 5, ensuring its unobstructed flow and reducing the likelihood of delayed drainage due to blockages. The specific cleaning process is as follows: the air circuit component is activated periodically, flushing out through the air passage formed by the steel pipe 7 and the branch pipe 9 and acting on the inlet 5 to disperse the accumulated debris. Simultaneously, to ensure the air passage operates independently without being affected by drainage, a one-way valve 8 is installed to allow the air passage to open in one direction, preventing water from damaging the air circuit component.

[0048] In summary, the drainage structure of this embodiment has the following advantages compared with the current drainage measures of municipal bridges: The drainage structure of this embodiment can automatically adjust the drainage mode according to the actual drainage situation, realize rapid discharge while reducing the impact of water flow on the drainage pipe, reduce maintenance costs, improve the reliability of drainage operation, and can also automatically clean the water inlet area to ensure its smooth flow, thereby reducing the probability of untimely drainage due to siltation.

[0049] Example 2

[0050] This embodiment provides a method for venting water, which includes the following steps:

[0051] S1 cleans the water inlet area of ​​the drainage structure provided in Example 1 to remove the dirt collected at the inlet.

[0052] S2 detects the water flow velocity in the drainage pipe and changes the drainage mode based on the measured water flow velocity.

[0053] When the water flow velocity is not higher than 1.0 m / s, keep the backup discharge channel closed. When the water flow velocity is higher than 1.0 m / s, open the backup discharge channel to share the drainage volume and achieve rapid discharge.

[0054] In summary, the discharge method of this embodiment has the following advantages compared with the discharge measures of traditional bridges: the discharge method of this embodiment can realize the automatic adjustment of the drainage mode. When the drainage volume is large, the drainage structure automatically opens the backup discharge channel to share the drainage volume, thereby achieving rapid discharge.

[0055] The naming of each component is based on its function as described in the specification, and is not limited to the specific terms used in this invention. Those skilled in the art may also choose other terms to describe the names of the components of this invention.

Claims

1. A drainage structure applied to municipal bridges, characterized in that, include: Sidewalk drainage system, which is installed on both sides of the bridge deck of municipal bridges; as well as The bridge deck drainage system includes several sets of inlets (5) opened on the bridge deck of the municipal bridge, water pipes (6) connected to the corresponding inlets (5), backwashing components installed in the water pipes (6), and drainage pipes for connecting the water pipes (6). The drainage pipeline includes a four-way pipe (10) fixedly connected to the end of the corresponding water inlet pipe (6), a connecting pipe (11) installed between two adjacent sets of four-way pipes (10), an electromagnetic flow meter (12) installed on one of the connecting pipes (11), and a solenoid valve (13) installed on the corresponding four-way pipe (10). The backwash assembly includes a steel pipe (7) located at the center of the corresponding water inlet pipe (6), a one-way valve (8) fixedly installed on the steel pipe (7) facing the corresponding water inlet (5), and a branch pipe (9) welded to the bottom end of the steel pipe (7); the steel pipe (7) is suspended in the water inlet pipe (6) by a support rod, and the branch pipe (9) is vertically fixed and installed through the corresponding side wall of the water inlet pipe (6); the bridge deck drainage system also includes an air circuit assembly for filling the backwash assembly with flushing air; the air circuit assembly consists of an air pipe, a three-way pipe and an air source, and the air pipe is installed at the end of the corresponding branch pipe (9) that extends out of the water inlet pipe (6).

2. The drainage structure applied to municipal bridges according to claim 1, characterized in that, The sidewalk drainage system includes a sidewalk base layer (1), a water storage tank (3) located in the sidewalk base layer (1), a water inlet channel (2) located on the sidewalk base layer (1) and connected to the water storage tank (3), and an overflow channel (4).

3. The drainage structure applied to municipal bridges according to claim 2, characterized in that, The sidewalk base layer (1) is obtained by precast concrete; the water channel (2) is opened through the corresponding side wall of the sidewalk base layer (1), and the bottom surface of the water channel (2) is flush with the bridge deck; The overflow trough (4) is located above the water storage tank (3), and the overflow trough (4) is opened through the corresponding side wall of the cast-in-place pedestrian walkway base (1).

4. The drainage structure applied to municipal bridges according to claim 3, characterized in that, The number of water intake channels (2) is several groups, and the several groups of water intake channels (2) are distributed in parallel, and a barrier net is installed at the water intake channel (2).

5. The drainage structure applied to municipal bridges according to claim 1, characterized in that, Several sets of inlets (5) are evenly distributed along both sides, and the inlets (5) on the same side are distributed in parallel. The municipal bridge has a through groove for inserting the water pipe (6), and the water pipe (6) and the municipal bridge are filled with adhesive.

6. The drainage structure applied to municipal bridges according to claim 1, characterized in that, The four-way pipe (10) is located below the superstructure of the municipal bridge, and the four-way pipe (10) has four ports: A, B, C, and D. Among them, port A is connected to the water inlet pipe (6), ports B and C are connected to the connecting pipe (11), and the solenoid valve (13) is used to control the opening and closing of port D; the connecting pipe (11) is connected to the municipal bridge through the pipe rack, and the connecting pipe (11) is set horizontally.

7. The drainage structure for municipal bridges according to claim 6, characterized in that, The bridge deck drainage system also includes a computer terminal; The computer terminal includes a memory, a processor, and a computer program stored in the memory and executable on the processor; when the memory executes the program, it drives the opening of the solenoid valve (13).

8. A method for venting water, comprising the following steps: S1 cleans the inlet area of ​​the drainage structure to remove dirt accumulated at the inlet; S2 detects the water flow velocity in the drainage pipe and changes the drainage mode according to the measured water flow velocity; characterized in that the drainage structure is the drainage structure applied to municipal bridges as described in any one of claims 1 to 7.

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