Flood prevention automatic early warning system

Abstract

An automatic flood prevention early warning system relates to the technical field of urban road flood prevention early warning and is used for blocking early warning of a drainage system, the drainage system comprises a sewer arranged on the side edge of a green belt and a drainage pipe communicated with the sewer and a municipal pipe network, and a rainwater grate is further arranged at the top of the sewer. The early warning system comprises a power supply, and a water flow monitoring device, a water level monitoring device and an alarm device which are electrically connected with the power supply and are in communication connection with the municipal monitoring system, a first placement bin is vertically arranged on one side of the upper part of the sewer, and the water level monitoring device is arranged in the first placement bin and faces the sewer; a second containing bin is further vertically arranged at the position corresponding to the middle of the drainage pipe and is perpendicular to the drainage pipe, and the water flow monitoring device is detachably arranged on the outer wall of the drainage pipe in the second containing bin. When the drainage system is blocked, the early warning system can accurately warn and locate the blocking position through a water flow-water level cooperative monitoring mechanism, and the emergency prevention and control and visual early warning capacity under extreme weather is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to city road flood prevention early warning technical field, concretely is a kind of flood prevention automatic early warning system. BACKGROUND

[0002] As shown in Figure 1 Rainwater grate 1 as the key filter device of city drainage system, it is usually composed of flat steel and twisted square steel or flat steel welding, it is generally arranged at the junction of the side of green belt of road two sides or road two sides and sewer 2 entrance, and it is intercepted by dense arrangement of leakage hole fallen leaves, garbage and other sundries, to prevent it from entering sewer and causing blockage.

[0003] However, in autumn flood season, strong rainfall and wind superposition will rapidly rush a large number of fallen leaves and garbage on road surface to sewer 2 entrance, although rainwater grate 1 has basic filtering function, but in fallen leaves dense section, sundries often accumulate and block leakage hole 11 in a short time, at the same time, soil loosening or silt accumulation may occur in sewer 2 inside to block drainage pipe 3, resulting in rapid decrease of drainage efficiency and rapid expansion of road water area.

[0004] More serious is that, at night, even if there is street lamp in green belt, rainwater grate 1 covered by accumulated water and fallen leaves is also difficult to be identified by traffic guidance personnel or passing vehicles in time, and accumulated water area lacks obvious warning sign, so that electric vehicle, bicycle and other light traffic tools are easy to misenter deep water area, causing safety accidents such as sideslip and out of control, and this contradiction highlights the problem of insufficient emergency prevention and control and visual early warning ability of traditional rainwater grate under extreme weather. INVENTION CONTENTS

[0005] To solve the technical problems in the above background art, the utility model provides a flood prevention automatic early warning system.

[0006] The technical scheme of the utility model is as follows:

[0007] A flood prevention automatic early warning system is used for blockage early warning work of road drainage system, wherein the drainage system includes sewer arranged at the side of green belt, drainage pipe connected with sewer and municipal pipe network, rainwater grate arranged at the top of sewer, and the early warning system mainly includes power supply, water flow monitoring device electrically connected with power supply and in communication connection with municipal monitoring system, water level monitoring device and alarm device.

[0008] As the core technical concept of the utility model, first placing bin is vertically arranged at one side of upper part of sewer, water level monitoring device is arranged in first placing bin and is arranged towards sewer, second placing bin is vertically arranged at corresponding middle position of drainage pipe, second placing bin is perpendicular to drainage pipe, and water flow monitoring device is detachably arranged on the outer wall of drainage pipe in second placing bin.

[0009] When the drainage system is blocked, the early warning system can accurately warn and locate the blockage position through the double-parameter cooperative monitoring mechanism. Specifically, through the cross verification of water level + flow double-dimensional data, the system can effectively distinguish between "rainwater grate blockage" (water flow reduction, water level stable) and "drainage pipe blockage" (water flow reduction, water level rise), avoid single parameter misjudgment, and significantly improve the efficiency of flood control emergency response.

[0010] Further, the power supply includes a solar photovoltaic panel and a battery electrically connected thereto, and a fixing seat is further arranged in the green belt, and the solar photovoltaic panel, the battery and the alarm device are arranged on the fixing seat, and the battery is electrically connected with the water flow monitoring device, the water level monitoring device and the alarm device through wires.

[0011] In order to improve the safety of the system, the battery is waterproof and explosion-proof, and the fixing seat can be arranged in a hidden place of the green belt to improve the safety of the system.

[0012] In order to facilitate the later maintenance of the water flow monitoring device and the water level monitoring device, the upper ends of the first and second placing bins are provided with detachable cover plates, and the upper sides of the cover plates and the peripheries of the two placing bins are usually covered with silt. When the water flow monitoring device and the water level monitoring device are maintained, the cover plates can be opened by digging away the silt, which is very convenient.

[0013] Further, the wires pass through the two cover plates and are electrically connected with the corresponding water flow monitoring device and water level monitoring device. The wires are arranged in a position which is convenient for wiring and subsequent maintenance.

[0014] In order to improve the safety of the system, the battery is waterproof and explosion-proof, and the fixing seat can be arranged in a hidden place of the green belt to improve the safety of the system.

[0015] In some implementations, the sewer is provided with at least two in parallel to improve the drainage efficiency, and the first placing bin is arranged between the two sewers to facilitate the water level monitoring device to monitor the water level of the two sewers.

[0016] Further, the water level monitoring device is a non-contact water level sensor.

[0017] Further, the first placing bin has a rectangular cross-sectional shape and is made of transparent high-density polyethylene material, and two non-contact water level sensors are arranged in the first placing bin and face the two sewers respectively.

[0018] As an implementation, the water flow monitoring device is an outer clamping type ultrasonic sensor, and the alarm mechanism of the alarm device includes sound alarm and / or light alarm.

[0019] When the drainage system is blocked, the early warning system can accurately warn through the water flow monitoring device and water level monitoring device cooperative monitoring mechanism, and accurately locate the blockage position, at the same time through the alarm device directly judge the blockage position, help the repair personnel to find the first aid position quickly, and timely remind the passing vehicle pedestrian to accurately avoid danger, thereby improving the emergency prevention and control and visual early warning ability under extreme weather. BRIEF DESCRIPTION OF DRAWINGS

[0020] In the drawings:

[0021] Figure 1 For the prior art;

[0022] Figure 2 For the use of the flood control automatic early warning system (top view ground perspective) of the utility model;

[0023] Figure 3 For Figure 2 A-A cross-sectional view in the;

[0024] Figure 4 For Figure 2 B-B cross-sectional view in the;

[0025] Figure 5 For Figure 3 Enlarged view of C in the;

[0026] The components represented by the reference signs in the drawings are:

[0027] 1, rainwater grate; 11, handle; 2, sewer; 3, drain pipe; 4, street light fixing rod; 5, wire; 6, water level monitoring device; 7, water flow monitoring device; 8, first storage bin; 81, first cover plate; 9, second storage bin; 91, second cover plate. DETAILED DESCRIPTION

[0028] In combination Figures 2-4 , the embodiment provides a flood control automatic early warning system for road drainage system blockage early warning work.

[0029] In combination Figure 2 , the drainage system includes a sewer 2 arranged on the side of the green belt, a drain pipe 3 connected with the sewer 2 and the municipal pipe network, and a rainwater grate 1 arranged on the top of the sewer 2, wherein the early warning system mainly comprises a power supply, a water flow monitoring device 7 electrically connected with the power supply and in communication connection with a municipal monitoring system, a water level monitoring device 6 and an alarm device.

[0030] In combination Figure 3 and Figure 4The first placing bin 8 is vertically arranged on one side of the upper portion of the sewer 2, the water level monitoring device 6 is arranged in the first placing bin 8 and faces the sewer 2, and the second placing bin 9 is vertically arranged at the middle position of the drain pipe 3, the second placing bin 9 is perpendicular to the drain pipe 3, and the water flow monitoring device 7 is detachably arranged on the outer wall of the drain pipe 3 in the second placing bin 9.

[0031] The power supply includes a solar photovoltaic panel and a battery electrically connected with the solar photovoltaic panel, a fixing seat is further arranged in the green belt, the solar photovoltaic panel, the battery and the alarm device are arranged on the fixing seat, and the battery is electrically connected with the water flow monitoring device 7, the water level monitoring device 6 and the alarm device through the wire 5.

[0032] The solar photovoltaic panel, the battery and the alarm device are arranged on the fixing seat in the green belt, which can avoid occupying the road space and reduce the risk of human damage, and the alarm device can directly remind the repair personnel and the passing vehicles and pedestrians, so that the accurate risk avoidance and early warning processing are facilitated.

[0033] In combination with Figure 2 In order to quickly remove the fallen leaves and other sundries in the rainwater grate 1, one side of the rainwater grate 1 close to the green belt is hinged to the sewer 2, the other side is rotatably provided with a handle 11, and the upper side of the rainwater grate 1 is further provided with a storage groove corresponding to the handle 11.

[0034] The solar photovoltaic panel is arranged at an inclination of 15°-30°, and the upper side of the solar photovoltaic panel is free of obstructions, so that the daily power generation capacity can be increased by more than 20%.

[0035] The height of the fixing seat of the embodiment can be set according to actual conditions, for example, when a street lamp fixing rod 4 for installing a street lamp is arranged in the green belt, the fixing seat can be directly installed on the street lamp fixing rod 4, and the connection mode can adopt the prior art.

[0036] For the case that it is inconvenient to arrange the fixing seat on the street lamp fixing rod 4, the fixing seat is arranged in a hidden place of the green belt to improve the system safety.

[0037] In order to improve the system safety, the battery is preferably a waterproof and explosion-proof battery with an IP67 shell.

[0038] In some implementations, the sewer 2 is arranged at least in parallel with two sewers 2 to improve the drainage efficiency, and the first placing bin 8 is arranged between the two sewers 2 to facilitate the water level monitoring device 6 to monitor the water level of the two sewers 2.

[0039] As preferred, the water level monitoring device 6 is a non-contact water level sensor to avoid direct contact with sewage, reduce maintenance frequency, and the first placement bin 8 has a rectangular cross-sectional shape and is made of transparent high-density polyethylene material, specifically UV-resistant high-density polyethylene, and the inner wall is provided with an anti-fog coating, and two non-contact water level sensors are arranged in the first placement bin 8 and face the two sewers 2 respectively to monitor the water level of the two sewers 2.

[0040] As preferred, the water flow monitoring device 7 is an outer clamping ultrasonic sensor, which can be clamped on the outer ring of the drain pipe 3 without the need for opening, thereby protecting the structural integrity of the drain pipe 3 and reducing maintenance frequency.

[0041] The alarm mechanism of the alarm device includes sound alarm and / or light alarm, and the embodiment preferably uses sound and light alarms.

[0042] To facilitate the later maintenance and waterproofing of the water flow monitoring device 7 and the water level monitoring device 6, the first placement bin 8 and the second placement bin 9 are provided with removable covers at the upper ends, and the covers are usually covered with sand on the upper side and around the two placement bins. When the water flow monitoring device 7 and the water level monitoring device 6 are maintained, the covers can be opened by digging away the sand, which is very convenient.

[0043] In combination with Figure 4 and Figure 5 , the covers at the upper ends of the first placement bin 8 and the second placement bin 9 are respectively a first cover 81 and a second cover 91, and to prevent water accumulation, the first cover 81 and the second cover 91 are both arranged obliquely.

[0044] The wires 5 pass through the middle of the two covers and enter the corresponding placement bins, and then are electrically connected to the corresponding water flow monitoring device 7 and water level monitoring device 6. The wires 5 are arranged in a position that is convenient for wiring and subsequent maintenance, and rubber sealing rings are arranged between the covers and the corresponding placement bin interfaces and the wires 5.

[0045] As an optional implementation, the wires 5 are further sleeved with protective tubes to protect the wires 5 and improve their service life.

[0046] In combination with Figure 5 , to ensure that the monitoring range of the water level sensor covers the normal water level to the warning water level interval, the first placement bin 8 is located at a position of 50%-90% of the height of the sewer 2, and the periphery of the first placement bin 8 is filled with concrete material except for the positions corresponding to the two sewers 2 on both sides to improve the waterproof performance, and the first cover 81 is obliquely arranged near the ground and the upper side is covered with concrete material to be flush with the ground. When maintaining, the upper side of the first cover 81 must be excavated, and after maintenance is completed, the concrete is filled to seal it.

[0047] When the drainage system is blocked, the early warning system can effectively distinguish between "stormwater grate 1 blockage" (water flow decreases, water level remains stable) and "drain 3 blockage" (water flow decreases, water level rises) through water level + flow cross-verification, avoiding single parameter misjudgment and significantly improving flood control emergency response efficiency.

[0048] Specifically, in the scenario of stormwater grate 1 blockage: after fallen leaves or debris cover the drain holes, rainwater is blocked outside the sewer 2, causing a sharp drop in water flow into the drain 3. At this time, the water flow monitoring device 7 detects that the flow is below the preset threshold (such as <10% of the rated value), triggering the alarm device to start the audible and visual warning for pedestrians, and simultaneously sending the positioning information to the municipal monitoring system.

[0049] In the scenario of internal blockage of drain 3: if the drain 3 is blocked due to sediment accumulation or structural collapse, rainwater will continue to accumulate in the sewer 2 and cannot be discharged. The water level monitoring device 6 detects that the water level rise rate is abnormal (such as >10 cm / min) or exceeds the safety threshold (such as 80% of the depth of sewer 2), immediately starts the alarm and marks "drain 3 blockage", which can accurately guide the dredging personnel to prioritize handling.

Claims

1. An automatic flood control early warning system for use in predicting blockages in road drainage systems, the drainage system comprising a sewer (2) located along the side of a green belt, a drainage pipe (3) connecting the sewer (2) and a municipal pipe network, and a rain grate (1) installed on top of the sewer, characterized in that, Includes a power supply and a water flow monitoring device (7) electrically connected to it and communicating with the municipal monitoring system, a water level monitoring device (6) and an alarm device; The sewer (2) has a first placement chamber (8) vertically arranged on one side of the upper part, and the water level monitoring device (6) is located in the first placement chamber (8) and facing the sewer (2); A second placement chamber (9) is also vertically provided at the middle position of the drain pipe (3). The second placement chamber (9) is perpendicular to the drain pipe (3), and the water flow monitoring device (7) is detachably installed on the outer wall of the drain pipe (3) inside the second placement chamber (9).

2. The automatic flood control early warning system as described in claim 1, characterized in that, The power source includes a solar photovoltaic panel and a battery electrically connected to it, and a fixed base is also provided in the green belt; The solar photovoltaic panel, battery, and alarm device are all mounted on a fixed base. The battery is electrically connected to the water flow monitoring device (7), water level monitoring device (6), and alarm device via a wire (5).

3. The automatic flood control early warning system as described in claim 2, characterized in that, The upper ends of the first placement compartment (8) and the second placement compartment (9) are provided with removable covers.

4. The automatic flood control early warning system as described in claim 3, characterized in that, The conductor (5) passes through the two cover plates and is electrically connected to the corresponding water flow monitoring device (7) and water level monitoring device (6).

5. The automatic flood control early warning system as described in claim 4, characterized in that, A rubber sealing ring is provided between the cover plate and the corresponding placement compartment interface and between the cover plate and the wire (5), and the cover plate is inclined.

6. The automatic flood control early warning system as described in claim 1, characterized in that, At least two sewers (2) are arranged side by side, and the first placement compartment (8) is located between the two sewers (2).

7. The automatic flood control early warning system as described in claim 6, characterized in that, The water level monitoring device (6) is a non-contact water level sensor.

8. The automatic flood control early warning system as described in claim 7, characterized in that, The first placement compartment (8) has a rectangular cross-sectional shape and is made of transparent high-density polyethylene material.

9. The automatic flood control early warning system as described in claim 1, characterized in that, The water flow monitoring device (7) is an external clamp-on ultrasonic sensor.

10. An automatic flood warning system as described in any one of claims 1-9, characterized in that, The alarm mechanism of the alarm device includes sound alarm and / or light alarm.

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