Bridge incident drainage collection device

Abstract

The utility model relates to municipal and highway drainage engineering technical field especially, relate to a bridge accident drainage collection device, including oil separation sedimentation tank, accident pool, water quality detection well, sedimentation tank inlet water electric valve, accident pool inlet water electric valve, the water quality detection well is linked together with the inlet pipe of accident water, the oil separation sedimentation tank and accident pool are linked together with the both ends of water quality detection well through the water pipe, the top of oil separation sedimentation tank is equipped with the oil baffle along the vertical direction, the bottom of oil baffle is suspended in the pool bottom of oil separation sedimentation tank, and the water flows through the oil separation cavity and enters the deposition cavity from the bottom of oil baffle from top to bottom, the middle of accident pool is equipped with overflow weir, and the overflow weir divides accident pool into two compartments, and after the first compartment is full of water, can overflow to the second compartment through overflow weir. The utility model can solve how to collect the accident drainage collection of the road section crossing sensitive water area, avoid the environmental risk of pollutant entering sensitive water area, realize the real-time monitoring and emergency expansion function problem.

Description

Technical Field

[0001] This utility model relates to the field of municipal and highway drainage engineering technology, and in particular to a bridge accident drainage collection device. Background Technology

[0002] The frequent occurrence of environmental pollution and damage accidents in highway traffic has aroused widespread concern throughout society. Various environmental protection departments have also issued corresponding regulations, requiring that emergency drainage in the event of various accidents should be considered in the design of bridges and roads, and that reasonable drainage systems should be designed.

[0003] However, most existing bridge deck drainage systems employ direct discharge into rivers or lakes. This direct discharge method has revealed numerous shortcomings when facing increasingly stringent environmental quality requirements. Untreated bridge deck runoff may carry large amounts of pollutants, such as oil, heavy metals, and garbage. Direct discharge into water bodies will severely pollute water quality and impact aquatic ecosystems. Furthermore, existing drainage systems generally lack real-time monitoring capabilities, cannot automatically switch treatment processes based on water quality changes, and have fixed emergency storage capacity, potentially facing insufficient capacity in the event of a major leak.

[0004] Therefore, existing bridge accident drainage systems have problems such as seriously polluting the water quality of nearby rivers, lacking real-time water quality monitoring functions, and having a fixed capacity for the accident pool, which may face the risk of insufficient capacity. Utility Model Content

[0005] The purpose of this utility model is to provide a bridge accident drainage collection device that can solve the technical problem of how to collect accident drainage from road sections crossing sensitive water areas, avoid the environmental risk of pollutants entering sensitive water areas, and at the same time ensure that rainwater runoff from the bridge surface is discharged in a timely manner, and realize the technical problem of real-time monitoring and emergency expansion functions.

[0006] To achieve the above objectives, this utility model provides the following technical solution: This utility model discloses a bridge accident drainage collection device, including an oil-water separation sedimentation tank, an accident pool, a water quality testing well, an electric valve for the sedimentation tank inlet, and an electric valve for the accident pool inlet. The water quality testing well is connected to the inlet pipe of the accident water. The oil-water separation sedimentation tank and the accident pool are respectively connected to the two ends of the water quality testing well through water pipes. The electric valve for the sedimentation tank inlet is installed on the water pipe near the side of the oil-water separation sedimentation tank, and the electric valve for the accident pool inlet is installed on the water pipe near the side of the accident pool. The top of the oil-water separator sedimentation tank is vertically equipped with an oil baffle plate. The bottom of the oil baffle plate is suspended above the bottom of the oil-water separator sedimentation tank. The oil baffle plate divides the oil-water separator sedimentation tank into an oil-water separation chamber and a sedimentation chamber. The oil-water separation chamber is connected to one end of the water quality testing well. Water flows through the oil-water separation chamber from top to bottom and enters the sedimentation chamber through the bottom of the oil baffle plate. The accident pool is equipped with an overflow weir in the middle, which divides the accident pool into two compartments. When the first compartment is full of water, the water can overflow to the second compartment through the overflow weir.

[0007] As a preferred embodiment, a hollow inclined plate is provided longitudinally inside the sedimentation chamber, and the two ends of the hollow inclined plate are respectively connected to the inner wall of the oil-separating sedimentation tank and the oil baffle plate.

[0008] Furthermore, the hollow inclined plate is composed of a row of inclined hollow plates. Water flows from bottom to top through the hollow inclined plate, causing impurities to settle at the bottom of the oil-water separation sedimentation tank. The settled water is discharged from the top of the hollow inclined plate.

[0009] As a preferred embodiment, the bridge accident drainage collection device further includes an activated carbon adsorption tank, and the top of the oil-water separation sedimentation tank is provided with a sedimentation tank outlet pipe along the horizontal direction. The end of the sedimentation tank outlet pipe is connected to the activated carbon adsorption tank, and the end of the activated carbon adsorption tank is provided with an adsorption tank outlet pipe. An adsorption tank outlet valve is provided on the adsorption tank outlet pipe.

[0010] Furthermore, the bottom of the oil-water separation sedimentation tank is provided with a vent pipe along the horizontal direction, and the vent pipe is provided with a vent valve.

[0011] Furthermore, the top of the oil-water separation sedimentation tank and the emergency tank are respectively equipped with an inspection hole, a vent cap, and a water level gauge.

[0012] Furthermore, a photovoltaic panel is installed above the accident pool.

[0013] As a preferred embodiment, the water quality testing well is equipped with a COD water quality analyzer, a pH analyzer, and a hazardous gas detector.

[0014] The beneficial effects of this utility model are: (1) This device improves the removal rate of the sedimentation tank by setting up an oil-water separation sedimentation tank with hollow inclined plates; when there is no rainwater pipe network collection system in the surrounding area, it combines water quality sensors and PLC control to ensure that the initial rainwater enters the sedimentation tank, which can efficiently treat the initial rainwater and reduce the pollution of water bodies by road rainwater.

[0015] (2) The activated carbon adsorption tank at the end of the effluent pipe of the oil-water separator can deeply purify the initial rainwater, improve the pollutant removal rate, and meet the environmental protection requirements of special areas such as drinking water sources.

[0016] (3) An overflow baffle is installed in the accident pool. Under normal operating conditions, the overflow baffle is stored in the first compartment, which is convenient for operation and maintenance. When there is a large amount of water in a major accident or a sudden major leakage accident, pollutants can enter the second compartment through the overflow to expand the capacity of the accident pool, improve the emergency response capability for major accidents, and prevent chemical hazardous materials from entering sensitive water areas.

[0017] (4) The integrated IoT monitoring system supports real-time data transmission and remote management. The photovoltaic power generation device supplies power to the system, enabling off-grid operation and saving construction and operation costs. Attached Figure Description

[0018] Figure 1 This is a top view of the structure of this utility model.

[0019] Figure 2 for Figure 1 Cross-sectional view at point 1-1.

[0020] Figure 3 for Figure 2 Enlarged schematic diagram of the oil-water separation tank.

[0021] Figure 4 for Figure 2 Enlarged schematic diagram of the accident pool.

[0022] Figure 5 for Figure 1 Cross-sectional view at point 2-2.

[0023] Explanation of reference numerals in the attached figures: A-Oil-water separator sedimentation tank; B-Emergency tank; C-Water quality monitoring well; D-Activated carbon adsorption tank; E-PLC control cabinet; 1-Inlet pipe; 2-Inlet electric main valve; 3-Sedimentation tank inlet electric valve; 4-Emergency tank inlet electric valve; 5-Vent cap; 6-Oil baffle; 7-Inspection hole; 8-Adsorption tank outlet valve; 9-Vent valve; 10-Adsorption tank outlet pipe; 11-Vent pipe; 12-Hollow inclined plate; 13-Photovoltaic panel; 14-COD water quality analyzer; 15-pH meter; 16-Hazardous gas detector; 17-Water level gauge; 18-Sedimentation tank outlet pipe; 19-Overflow weir. Detailed Implementation

[0024] To make the technical problem solved by this utility model, the technical solution adopted, and the technical effect achieved clearer, the technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are only for explaining this utility model and not for limiting it. Furthermore, it should be noted that, for ease of description, only the parts related to this utility model are shown in the accompanying drawings, not all of them.

[0025] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Specifically, the terms "first position" and "second position" refer to two different positions.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections or detachable connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] This utility model specifically relates to a bridge accident runoff collection and resource recovery system with intelligent identification, multi-level processing, and resource recycling functions. In view of the problems existing in the prior art, the main objective of this utility model is to provide a device that can effectively collect runoff from chemical hazardous material spills, avoiding the environmental risks of chemical hazardous materials entering sensitive water areas, while ensuring timely discharge of rainwater runoff from the bridge deck, and possessing intelligent monitoring, emergency expansion, and multi-functional integrated facilities.

[0028] This utility model provides a bridge accident drainage collection device, including an oil-water separator sedimentation tank A, an accident tank B, a water quality testing well C, an activated carbon adsorption tank D, an electric valve 3 for the sedimentation tank inlet, and an electric valve 4 for the accident tank inlet. The water quality testing well C is connected to the inlet pipe 1 for the accident water. The oil-water separator sedimentation tank A and the accident tank B are respectively connected to the two ends of the water quality testing well C through water pipes. The electric valve 3 for the sedimentation tank inlet is installed on the water pipe near the side of the oil-water separator sedimentation tank A, and the electric valve 4 for the accident tank inlet is installed on the water pipe near the side of the accident tank B.

[0029] The inlet pipe is located at the beginning of this device, connecting to the end pipe of the bridge deck rainwater collection system. A water quality sensor is installed at the inlet pipe to detect pH value and COD concentration. COD (Chemical Oxygen Demand) refers to the amount of oxygen equivalent consumed by a chemical reaction to oxidize reducing inorganic and organic matter in a water sample; it is a very important indicator for determining whether the water environment is polluted. The oil-water separator and emergency tank are connected to the inlet pipe.

[0030] An oil-water separator sedimentation tank A has a vertically mounted oil baffle 6 at its top, with its bottom suspended above the bottom of the tank. The oil baffle 6 divides the tank into an oil-water separation chamber and a sedimentation chamber. The oil-water separation chamber is connected to one end of a water quality monitoring well C. Water flows from top to bottom through the oil-water separation chamber, passing through the bottom of the oil baffle 6, and enters the sedimentation chamber. A hollow inclined plate 12 is longitudinally mounted inside the sedimentation chamber. Both ends of the hollow inclined plate 12 are connected to the inner wall of the oil-water separator sedimentation tank A and the oil baffle 6, respectively. The hollow inclined plate 12 consists of a row of inclined hollow plates. Water flows from bottom to top through the hollow inclined plate 12, settling impurities at the bottom of the tank. The settled water is discharged from above the hollow inclined plate 12. The top of the oil-water separator sedimentation tank A is equipped with a sedimentation tank outlet pipe 18 along a horizontal direction. The end of the sedimentation tank outlet pipe 18 is connected to the activated carbon adsorption tank D. The end of the activated carbon adsorption tank D is equipped with an adsorption tank outlet pipe 10, and an adsorption tank outlet valve 8 is installed on the adsorption tank outlet pipe 10. The bottom of the oil-water separator sedimentation tank A is equipped with a vent pipe 11 along a horizontal direction, and a vent valve 9 is installed on the vent pipe 11. The tops of the oil-water separator sedimentation tank A and the emergency tank B are respectively equipped with an inspection hole 7, a vent cap 5, and a water level gauge 17.

[0031] The grease trap is located at the rear end of the inlet pipe. The collected initial rainwater enters the grease trap through a valve. It contains a removable inclined plate sedimentation device to separate grease, floating matter, and settle sediment and other impurities from the rainwater. An activated carbon adsorption tank is connected to the end of the grease trap, where the collected initial rainwater is discharged after grease trapping and deep purification. The outlet pipe is located at the rear end of the grease trap.

[0032] An overflow weir 19 is located in the middle of the emergency pool B, dividing it into two compartments. When the first compartment is full, water overflows into the second compartment via the overflow weir 19. Photovoltaic panels 13 are installed above the emergency pool B. The emergency pool is located on the other side of the inlet pipe. Collected emergency water is controlled by a valve to enter and be stored in the emergency pool. The emergency pool is divided into two compartments connected by an overflow weir. When the first compartment is full, water overflows into the second compartment via the overflow weir. Inspection holes, ventilation facilities, and photovoltaic solar panels are installed on the top.

[0033] The water quality testing well C is equipped with a COD water quality analyzer 14, a pH analyzer 15, and a hazardous gas detector 16.

[0034] The intelligent control system includes a PLC controller, which automatically switches the inlet valve of the oil separator sedimentation tank and the inlet valve of the emergency tank based on sensor data; the Internet of Things monitoring module uploads water level and water quality data to the cloud management platform in real time via a GPRS transmission module.

[0035] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be further described below with reference to the accompanying drawings and specific embodiments. However, the examples given are not intended to limit the utility model.

[0036] like Figure 1 The diagram shown is a structural schematic of a bridge accident collection device according to this utility model. The device includes an oil-water separation sedimentation tank A, an accident tank B, a water quality testing well C, an activated carbon adsorption tank D, a PLC control cabinet E, an inlet pipe 1, an electric main inlet valve 2, an electric inlet valve for the sedimentation tank 3, an electric inlet valve for the accident tank 4, a vent cap 5, an oil baffle plate for the oil-water separation tank 6, an inspection hole 7, an outlet valve for the adsorption tank 8, a vent valve for the oil-water separation sedimentation tank 9, an outlet pipe for the adsorption tank 10, a vent pipe for the oil-water separation sedimentation tank 11, an inclined plate 12, a photovoltaic panel 13, a COD water quality analyzer 14, a pH meter 15, a hazardous gas detector 16, a water level gauge 17, and an outlet pipe for the sedimentation tank 18.

[0037] After being collected by the bridge rainwater collection system, the incoming water enters the water quality testing well C through the inlet pipe 1. The classification of the incoming water is determined by three instruments in the water quality testing well C: COD water quality analyzer 14, pH analyzer 15, and hazardous gas detector 16.

[0038] like Figure 2 , 4 As shown, when the COD concentration is too high, the pH fluctuates significantly, or hazardous gases are detected, the inlet electric valve 3 of the sedimentation tank is automatically closed, and the inlet electric valve 4 of the emergency tank is opened, allowing incoming water to enter the emergency tank B. The emergency water is collected and temporarily stored in the emergency tank B. When the incoming water is small, it is stored in the first compartment of the emergency tank B. When the incoming water is large, it can overflow into the second compartment. When the water level gauge 17 detects that the tank is full, the inlet electric valve 4 of the emergency tank is automatically closed. After an accident, the emergency water stored in the emergency tank B is transported to a designated location for treatment by a special vehicle.

[0039] When the incoming water from an accident enters accident pool B, if the volume of water is small, it will flow into the first compartment of the accident pool; if the volume is large, the water will overflow into the second compartment through the overflow weir once the first compartment is full. After the accident is handled, the accident water will be transported by an accident handling vehicle to the appropriate treatment plant for further processing.

[0040] like Figure 2 , 3 As shown in Figure 5, when the incoming water is determined to be normal rainwater (i.e., pH and COD concentrations are normal and no hazardous gases are detected), the inlet electric valve 3 of the sedimentation tank automatically opens, and the inlet electric valve 4 of the emergency tank closes. After sedimentation treatment in the oil-water separator sedimentation tank A, the water then passes through the oil baffle 6 to separate grease, silt, and floating matter before entering the activated carbon adsorption tank D, where impurities are adsorbed and discharged. Under normal circumstances, the adsorption tank outlet valve 8 is open, and the oil-water separator sedimentation tank vent valve 9 is closed. Before maintenance, the tank needs to be emptied. At this time, the adsorption tank outlet valve 8 is closed, the oil-water separator sedimentation tank vent valve 9 is opened, and the water is vented through the oil-water separator sedimentation tank vent pipe 11. Then, the inspection port 7 is opened for maintenance.

[0041] When the incoming water from an accident enters the oil-water separator sedimentation tank A, the oil sludge is blocked by the oil baffle plate 6. Because the density of oil sludge is less than that of water, the oil sludge floats on the upper layer of the oil baffle plate 6. The bottom of the oil baffle plate 6 is suspended above the bottom of the oil-water separator sedimentation tank A. The incoming water flows from top to bottom through the bottom of the oil baffle plate 6 and enters the hollow inclined plate 12. The inclined plate 12 is composed of a row of inclined hollow plates through which the water flow can pass. The water flows from bottom to top through the hollow inclined plate 12, settling the impurities at the bottom of the oil-water separator sedimentation tank A. The settled water is discharged from the top of the hollow inclined plate 12 and enters the activated carbon adsorption tank D through the sedimentation tank outlet pipe 18. After further adsorption treatment by the activated carbon, the water flows out of the oil-water separator sedimentation tank A through the adsorption tank outlet pipe 10.

[0042] All of the above signals are connected to PLC control cabinet E, and the PLC automatically controls the valve operation. The system can be powered by photovoltaic solar panels 13.

[0043] This utility model has the following advantages: (1) This device improves the removal rate of the sedimentation tank by setting up an oil-water separation sedimentation tank with inclined plates; when there is no rainwater pipe network collection system in the surrounding area, it combines water quality sensors and PLC control to ensure that the initial rainwater enters the sedimentation tank, which can efficiently treat the initial rainwater and reduce the pollution of water bodies by road rainwater.

[0044] (2) An overflow baffle is installed in the accident pool. Under normal operating conditions, the water is stored in the first compartment, which is convenient for operation and maintenance. When there is a large amount of water in a major accident, it can be overflowed into the second compartment to improve the emergency response capability for major accidents and prevent chemical hazardous materials from entering sensitive water areas.

[0045] (3) The integrated IoT monitoring system supports real-time data transmission and remote management. The photovoltaic power generation device supplies power to the system, enabling off-grid operation and saving construction and operation costs.

[0046] (4) The activated carbon adsorption tank at the end of the outlet pipe can deeply purify the initial rainwater, improve the pollutant removal rate, and meet the environmental protection requirements of special areas such as drinking water sources.

[0047] This invention can solve the technical problem of how to collect accident drainage from road sections crossing sensitive water areas, avoid the environmental risk of pollutants entering sensitive water areas, and at the same time ensure that rainwater runoff from the bridge surface is discharged in a timely manner, so as to realize the functions of real-time monitoring and emergency expansion.

[0048] All other undescribed parts belong to the prior art. The specific embodiments described above further illustrate the purpose, technical solution and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the protection scope of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A bridge accident drainage collection device, characterized in that: The system includes an oil-water separator (A), an emergency pool (B), a water quality testing well (C), an electric valve (3) for the sedimentation tank inlet, and an electric valve (4) for the emergency pool inlet. The water quality testing well (C) is connected to the inlet pipe (1) for the emergency water. The oil-water separator (A) and the emergency pool (B) are respectively connected to both ends of the water quality testing well (C) through water pipes. The electric valve (3) for the sedimentation tank inlet is installed on the water pipe near the side of the oil-water separator (A), and the electric valve (4) for the emergency pool inlet is installed on the water pipe near the side of the emergency pool (B). The top of the oil-water separation sedimentation tank (A) is provided with an oil baffle plate (6) in a vertical direction. The bottom of the oil baffle plate (6) is suspended above the bottom of the oil-water separation sedimentation tank (A). The oil baffle plate (6) divides the oil-water separation sedimentation tank (A) into an oil-water separation chamber and a sedimentation chamber. The oil-water separation chamber is connected to one end of the water quality testing well (C). Water flows through the oil-water separation chamber from top to bottom through the bottom of the oil baffle plate (6) and enters the sedimentation chamber. The accident pool (B) is provided with an overflow weir (19) in the middle. The overflow weir (19) divides the accident pool (B) into two compartments. When the first compartment is full of water, the water can overflow to the second compartment through the overflow weir (19).

2. The bridge accident drainage collection device according to claim 1, characterized in that: The sedimentation chamber is provided with a hollow inclined plate (12) along the longitudinal direction. The two ends of the hollow inclined plate (12) are respectively connected to the inner wall of the oil-separated sedimentation tank (A) and the oil baffle plate (6).

3. A bridge accident drainage collection device according to claim 2, characterized in that: The hollow inclined plate (12) is composed of a row of inclined hollow plates. Water flows from bottom to top through the hollow inclined plate (12), causing impurities to settle at the bottom of the oil-water separation sedimentation tank (A). The settled water is discharged from the top of the hollow inclined plate (12).

4. A bridge accident drainage collection device according to claim 3, characterized in that: The bridge accident drainage collection device also includes an activated carbon adsorption tank (D), and a sedimentation tank outlet pipe (18) is provided horizontally at the top of the oil-water separation sedimentation tank (A). The end of the sedimentation tank outlet pipe (18) is connected to the activated carbon adsorption tank (D). The end of the activated carbon adsorption tank (D) is provided with an adsorption tank outlet pipe (10), and an adsorption tank outlet valve (8) is provided on the adsorption tank outlet pipe (10).

5. A bridge accident drainage collection device according to claim 4, characterized in that: The bottom of the oil-water separator sedimentation tank (A) is provided with a vent pipe (11) in the horizontal direction, and the vent pipe (11) is provided with a vent valve (9).

6. A bridge accident drainage collection device according to claim 5, characterized in that: The top of the oil-water separator (A) and the emergency tank (B) are respectively equipped with an inspection hole (7), a vent cap (5) and a water level gauge (17).

7. A bridge accident drainage collection device according to any one of claims 1 to 6, characterized in that: A photovoltaic panel (13) is installed above the accident pool (B).

8. A bridge accident drainage collection device according to claim 7, characterized in that: The water quality testing well (C) is equipped with a COD water quality tester (14), a pH tester (15), and a hazardous gas detector (16).

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