Intelligent sewage rainwater box culvert

Abstract

This utility model belongs to the field of stormwater culvert technology. It discloses an intelligent stormwater culvert for intercepting sewage, comprising a culvert body. A hydraulically operated, bottom-opening weir gate is installed near the center of the culvert body. The hydraulically operated, bottom-opening weir gate divides the culvert body into a first chamber and a second chamber from left to right. A floating baffle is installed inside the first chamber near the hydraulically operated, bottom-opening weir gate. This stormwater culvert has an intelligent diversion function. Compared to traditional interception wells, it not only intercepts sewage on sunny days but also automatically opens or closes the gate according to different conditions based on parameters measured by water quality analyzers, rain gauges, and level gauges, thus achieving intelligent sewage interception. This effectively and thoroughly separates rainwater and sewage. Utilizing the diversion well approach in a stormwater culvert can effectively intercept sewage in the culvert on sunny days, greatly reducing the frequency of combined rainwater and sewage overflows during rainy days. It can play a significant role in the treatment of black and odorous water bodies and the control of river water quality.

Description

Technical Field

[0001] This utility model relates to the field of rainwater culvert technology, specifically to an intelligent sewage interception rainwater culvert. Background Technology

[0002] Stormwater culverts play a vital role in stormwater drainage systems. They effectively collect and transport rainwater, ensuring the smooth operation of urban drainage systems. During periods of heavy rainfall in summer, stormwater culverts can also act as flood discharge points, preventing urban flooding.

[0003] According to the "2022 China Urban and Rural Construction Statistical Yearbook," the total length of urban drainage pipelines in my country in 2022 was 913,500 km. Of this, sewage pipelines accounted for 420,600 km (46.0%), stormwater pipelines for 407,000 km (44.6%), and combined sewer systems for stormwater and sewage for 85,900 km (9.4%). This shows that combined sewer systems still constitute a significant proportion of my country's infrastructure. Given my country's economic situation and the difficulties of renovating old urban areas, combined sewer systems will likely continue to exist in the short term.

[0004] Therefore, when faced with rainfall, the water volume in the combined sewer system increases with the increase in rainfall. When the water volume in the system exceeds the load of the main sewer system and the treatment capacity of the sewage treatment plant, the excess rainwater and sewage will still be discharged into the receiving water body in the form of overflow, becoming a potential pollution hazard to urban water bodies.

[0005] Due to incomplete separation of rainwater and sewage, a large number of sewage pipe networks are connected to rainwater culverts, which results in the inability to effectively intercept sewage in the rainwater culverts during dry weather. The frequency of overflow of combined rainwater and sewage is generally high, and it cannot play a significant role in the treatment of black and odorous water bodies and the control of river water quality, which is not conducive to maintaining a good social environment and ecological development. Utility Model Content

[0006] The purpose of this invention is to provide an intelligent sewage interception and rainwater culvert, which aims to solve the aforementioned technical problems existing in the prior art.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A smart stormwater interception culvert includes a culvert body. A hydraulically operated bottom-opening weir gate is installed near the middle of the culvert body. The hydraulically operated bottom-opening weir gate divides the culvert body into a first chamber and a second chamber from left to right. A floating baffle is installed inside the first chamber and near the hydraulically operated bottom-opening weir gate. A flow intercepting pipe is installed on one side of the inner wall of the first chamber. A hydraulically operated flow limiting gate is installed at the inlet end of the flow intercepting pipe. The hydraulically operated flow limiting gate is located on the inner surface of the first chamber. The first chamber is connected to the inlet end of an integrated pumping station through the flow intercepting pipe.

[0009] The integrated pump station includes a shell, inside which a water pump mechanism and a float level gauge are installed near the bottom. The outlet end of the water pump mechanism extends out of the shell and is connected to the municipal sewage network or sewage treatment plant through a water pipe.

[0010] A high-definition camera, a radar level gauge, and a COD water quality sensor are installed on the other side of the inner wall of the first well chamber. The radar level gauge is also installed on one side of the inner wall of the second well chamber. An optical rain gauge and an intelligent control box are installed on the ground near the top of the box culvert.

[0011] In a preferred embodiment of the present invention, an inlet pipe and an outlet pipe are respectively provided on opposite sides of the outer wall of the housing near the center, and a basket grille is provided at the outlet end of the inlet pipe.

[0012] In a preferred embodiment of the present invention, a maintenance platform is provided on the back of the housing and near the middle, and a maintenance ladder is provided on one side of its inner wall in a vertical direction. The maintenance ladder extends to the bottom of the housing, and an upward-opening cover is provided on the top of the housing and directly above the maintenance ladder.

[0013] In a preferred embodiment of this utility model, the water pump mechanism includes a submersible pump, which is fixedly installed at the bottom of the housing. The output end of the submersible pump is provided with a connecting pipe, and the submersible pump is connected to the water outlet pipe through the connecting pipe. A check valve, an electric stop valve, and a limit expansion joint are arranged sequentially from bottom to top on the connecting pipe near the water outlet pipe.

[0014] In a preferred embodiment of this utility model, the hydraulically operated bottom-opening weir gate, the hydraulically operated flow-limiting gate, the high-definition camera, the radar level gauge, the COD water quality sensor, the optical rain gauge, the submersible pump, the check valve, the electric stop valve, and the limit expansion joint are all electrically connected to the intelligent control box via wires.

[0015] In a preferred embodiment of this utility model, ladders are provided on the inner walls of both the first well chamber and the second well chamber.

[0016] The beneficial effects of this utility model are:

[0017] This utility model of a rainwater culvert has an intelligent diversion function. Compared with traditional interception wells, it not only intercepts sewage on sunny days, but also automatically opens or closes the gates according to different situations based on the measurement of parameters such as water quality analyzers, rain gauges, and level gauges, thus achieving intelligent sewage interception. This effectively and thoroughly separates rainwater and sewage. By applying the diversion well method to the rainwater culvert, it can effectively intercept sewage in the rainwater culvert on sunny days, which can greatly reduce the frequency of overflow of combined rainwater and sewage during rainy days. It can play a significant role in the treatment of black and odorous water bodies and the control of river water quality, and has good social, environmental and ecological benefits. Attached Figure Description

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

[0019] Figure 2 This is a schematic diagram of the vertical cross-sectional planar structure of this utility model (AA).

[0020] Figure 3 This is a schematic diagram of the plan structure of an integrated pumping station.

[0021] Attached reference numerals; where: 1. Hydraulic bottom-opening weir gate; 2. Hydraulic flow-limiting gate; 3. High-definition camera; 4. Radar level gauge; 5. Floating baffle; 6. COD water quality sensor; 7. Ladder; 8. Optical rain gauge; 9. Integrated pump station; 91. Shell; 92. Inlet pipe; 93. Outlet pipe; 94. Cover plate; 95. Maintenance ladder; 96. Basket grille; 97. Maintenance platform; 98. Float level gauge; 10. Pump mechanism; 101. Submersible pump; 102. Connecting pipe; 103. Check valve; 104. Electric plug valve; 105. Limiting expansion joint; 11. Box culvert body; 111. First well chamber; 112. Second well chamber; 12. Cut-off pipe; 13. Intelligent central control box. Detailed Implementation

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the present utility model will be briefly introduced below in conjunction with the accompanying drawings and descriptions of the embodiments or the prior art. Obviously, the following description of the structure of the accompanying drawings is only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. It should be noted that the description of these embodiments is used to help understand this utility model, but does not constitute a limitation on this utility model.

[0023] Example:

[0024] like Figure 1-3As shown, this embodiment provides an intelligent stormwater interception culvert, including a culvert body 11. A hydraulically operated bottom-opening weir gate 1 is provided near the middle of the culvert body 11. The hydraulically operated bottom-opening weir gate 1 divides the culvert body 11 into a first well chamber 111 and a second well chamber 112 from left to right. A floating baffle 5 is provided inside the first well chamber 111 and near the hydraulically operated bottom-opening weir gate 1. A flow intercepting pipe 12 is provided on one side of the inner wall of the first well chamber 111. A hydraulically operated flow limiting gate 2 is provided at the water inlet end of the flow intercepting pipe 12. The hydraulically operated flow limiting gate 2 is located on the inner surface of the first well chamber 111. The first well chamber 111 is connected to the water inlet end of the integrated pump station 9 through the flow intercepting pipe 12.

[0025] The integrated pump station 9 includes a housing 91. Inside the housing 91 and near the bottom, there is a water pump mechanism 10 and a float level gauge 98. The outlet end of the water pump mechanism 10 extends out of the housing 91 and is connected to the municipal sewage network or sewage treatment plant through a water pipe.

[0026] A high-definition camera 3, a radar level gauge 4, and a COD water quality sensor 6 are installed on the other side of the inner wall of the first well chamber 111. A radar level gauge 4 is also installed on one side of the inner wall of the second well chamber 112. An optical rain gauge 8 and an intelligent control box 13 are installed on the ground near the top of the box culvert.

[0027] In a preferred embodiment of the present invention, ladders 7 are further provided on the inner walls of both the first well chamber 111 and the second well chamber 112.

[0028] In a preferred embodiment of this utility model, the hydraulically operated bottom-opening weir gate 1, the hydraulically operated flow-limiting gate 2, the high-definition camera 3, the radar level gauge 4, the COD water quality sensor 6, the optical rain gauge 8, the submersible pump 101, the check valve 103, the electric plug valve 104, and the limit expansion joint 105 are all electrically connected to the intelligent control box 13 via wires.

[0029] Specific examples Figure 1-2 As shown, the hydraulically operated bottom-opening weir gate 1 divides the main body 11 of the box culvert into the first well chamber 111 on the left and the second well chamber 112 on the right. A high-definition camera 3 is fixedly connected to the well wall of the first well chamber 111 to collect video or image information inside the well, so as to facilitate the control of drainage of the diversion well.

[0030] The level gauge uses a radar level gauge 4 to measure the liquid level height before and after the hydraulically operated lower open weir 1 in real time, and to analyze and control the descent height of the hydraulically operated lower open weir 1 to control the discharge of water.

[0031] The floating baffle 5 can move up and down using the buoyancy of water to effectively intercept floating objects from upstream, such as garbage and oil, and prevent them from entering the downstream water body;

[0032] A COD water quality sensor 6 is fixedly installed on the well wall of the first well chamber 111. The COD water quality sensor 6 is located below the liquid surface and is used to detect the water quality in the first well chamber 111 in real time, so that the hydraulically operated bottom-opening weir gate 1 can be opened when the water is clear to discharge the relatively clean water later.

[0033] The main body of the box culvert 11 is equipped with two ladders 7 on its side wall. One ladder 7 is located in the first well chamber 111 near the hydraulic flow limiting gate 2, and the other is located in the second well chamber 112 behind the bottom-opening weir gate.

[0034] The intelligent control box 13 controls the automatic data collection of various sensors, including video and image acquisition; automatic water level detection; automatic rainfall detection; and the intelligent control box 13 has the function of storing and querying historical data for more than one year; reports can be queried for real-time historical data; historical trends of water quality and quantity can be generated and queried in real time; and relevant trend analysis of the data can be performed.

[0035] This culvert has four modes, which can be switched via the intelligent control box 13:

[0036] 1. Sunny Day Mode:

[0037] On sunny days, the main body of the box culvert 11 contains only sewage. The hydraulically operated bottom-opening weir gate 1 rises up and is in a closed state, the hydraulically operated flow-limiting gate 2 opens, and the integrated pump station 9 operates, so that the sewage is intercepted and sent to the sewage treatment plant.

[0038] 2. First Rain Mode:

[0039] At the beginning of rainfall, surface runoff enters the main body of the box culvert 11. At this time, the rainwater is highly polluted. The hydraulically operated bottom-opening weir gate 1 is still closed, the hydraulically operated flow-limiting gate 2 is opened, the integrated pumping station 9 is running, and the sewage is discharged directly from the intercepting pipe 12 to prevent the initial rainwater from entering the natural water body.

[0040] 3. Rainy Season Mode:

[0041] When there is heavy rainfall, the water level inside the main body 11 of the box culvert reaches the set value, the hydraulic flow restriction gate 2 closes, and the hydraulic bottom-opening weir gate 1 opens to realize the function of rainwater flood discharge.

[0042] 4. Anti-backflow mode:

[0043] When the water level of the natural water body is higher than the water level inside the main body 11 of the box culvert during the flood season, the hydraulically operated bottom-opening weir gate 1 rises up and is in a closed state, the hydraulically operated flow-limiting gate 2 opens, and the integrated pumping station 9 operates to prevent river water from flowing back into the rainwater box culvert.

[0044] In a preferred embodiment of the present invention, a water inlet pipe 92 and a water outlet pipe 93 are respectively provided on opposite sides of the outer wall of the housing 91 near the center, and a basket grille 96 is provided at the water outlet end of the water inlet pipe 92.

[0045] In a preferred embodiment of the present invention, a maintenance platform 97 is provided on the back of the housing 91 near the middle, and a maintenance ladder 95 is provided on one side of its inner wall in a vertical direction. The maintenance ladder 95 extends to the bottom of the housing 91, and an upward-opening cover plate 94 is provided on the top of the housing 91 and directly above the maintenance ladder 95.

[0046] In a preferred embodiment of the present invention, the water pump mechanism 10 further includes a submersible pump 101, which is fixedly installed at the bottom of the housing 91. The output end of the submersible pump 101 is provided with a connecting pipe 102, and the submersible pump 101 is connected to the outlet pipe 93 through the connecting pipe 102. Near the outlet pipe 93, the connecting pipe 102 is provided with a check valve 103, an electric stop valve 104, and a limit expansion joint 105 in sequence from bottom to top.

[0047] Specifically, such as Figure 3 As shown, sewage enters the pumping station through inlet pipe 92 and basket screen 96. Larger debris in the wastewater is intercepted by basket screen 96, which requires regular manual cleaning. Float level gauge 98 senses the liquid level. When the liquid level in the integrated pumping station reaches a designated height, it sends a signal to intelligent control box 13. Intelligent control box 13 controls the check valve 103, electric stop valve 104, and limit switch 105 to open, and then controls the submersible pump 101 to start pumping water into the municipal sewage network or sewage treatment plant. When the liquid level in the pumping station falls below the designated height, intelligent control box 13 first controls the check valve 103, electric stop valve 104, and limit switch 105 to close, and then controls the submersible pump 101 to shut down.

[0048] The main function of check valve 103 is to prevent backflow of the medium and protect the safety of the pipeline system and equipment. When the water pump stops working, check valve 103 can prevent water in the pipeline from flowing back into the water pump, avoiding damage to the impeller of submersible pump 101 or burnout of the motor.

[0049] In addition, the check valve 103 can reduce water hammer and protect the water pump from the effects of water hammer.

[0050] The electric plug valve 104 is controlled by an electric actuator to open and close the valve, and is mainly used to regulate flow and control the flow of media. It can be used in automatic control systems to achieve precise flow regulation.

[0051] The limit expansion joint 105 is mainly used to compensate for the expansion and contraction displacement of pipelines, ensuring that the pipeline can expand and contract freely within the allowable axial displacement range, while controlling lateral displacement to prevent pipeline breakage and misalignment.

[0052] During routine maintenance, staff can enter through the cover plate 94 on the top of the shell 91 and descend to the maintenance platform 97 via the maintenance ladder 95. They can clean large debris inside the basket grille 96 and also retrieve and clean the sludge deposited at the bottom of the shell 91.

[0053] Finally, it should be noted that the above are merely preferred embodiments of this utility model and are not intended to limit the scope of protection 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 scope of protection of this utility model.

Claims

1. A smart stormwater interception culvert, comprising a culvert body (11), characterized in that, A hydraulically operated bottom-opening weir gate (1) is provided near the middle of the main body (11) of the box culvert. The hydraulically operated bottom-opening weir gate (1) divides the main body (11) of the box culvert into a first well chamber (111) and a second well chamber (112) from left to right. A floating baffle (5) is provided inside the first well chamber (111) and near the hydraulically operated bottom-opening weir gate (1). A flow-blocking pipe (12) is provided on one side of the inner wall of the first well chamber (111). A hydraulically operated flow-limiting gate (2) is provided at the water inlet end of the flow-blocking pipe (12). The hydraulically operated flow-limiting gate (2) is located on the inner surface of the first well chamber (111). The first well chamber (111) is connected to the water inlet end of the integrated pump station (9) through the flow-blocking pipe (12). The integrated pump station (9) includes a housing (91), and a water pump mechanism (10) and a float level gauge (98) are provided inside the housing (91) and near the bottom. The water outlet of the water pump mechanism (10) extends out of the housing (91) and is connected to the municipal sewage network or sewage treatment plant through a water pipe. A high-definition camera (3), a radar level gauge (4) and a COD water quality sensor (6) are installed on the other side of the inner wall of the first well chamber (111). The radar level gauge (4) is also installed on one side of the inner wall of the second well chamber (112). An optical rain gauge (8) and an intelligent control box (13) are installed on the ground near the top of the box culvert.

2. The intelligent sewage interception and rainwater culvert according to claim 1, characterized in that, Water inlet pipe (92) and water outlet pipe (93) are respectively provided on opposite sides of the outer wall of the shell (91) near the center. The water outlet end of the water inlet pipe (92) is provided with a basket grille (96).

3. The intelligent sewage interception rainwater culvert according to claim 2, characterized in that, A maintenance platform (97) is provided on the back of the housing (91) and near the middle. A maintenance ladder (95) is provided on one side of the inner wall of the housing (91) in a vertical direction. The maintenance ladder (95) extends to the bottom of the housing (91). An upward-opening cover plate (94) is provided on the top of the housing (91) and directly above the maintenance ladder (95).

4. The intelligent sewage interception and rainwater culvert according to claim 3, characterized in that, The water pump mechanism (10) includes a submersible pump (101), which is fixedly installed at the bottom of the housing (91). The output end of the submersible pump (101) is provided with a connecting pipe (102). The submersible pump (101) is connected to the outlet pipe (93) through the connecting pipe (102). Near the outlet pipe (93), the connecting pipe (102) is provided with a check valve (103), an electric stop valve (104), and a limit expansion joint (105) in sequence from bottom to top.

5. The intelligent sewage interception and rainwater culvert according to claim 4, characterized in that, The hydraulically operated bottom-opening weir gate (1), the hydraulically operated flow-limiting gate (2), the high-definition camera (3), the radar level gauge (4), the COD water quality sensor (6), the optical rain gauge (8), the submersible pump (101), the check valve (103), the electric plug valve (104), and the limit expansion joint (105) are all electrically connected to the intelligent control box (13) via wires.

6. The intelligent sewage interception and rainwater culvert according to claim 1, characterized in that, The inner walls of the first well chamber (111) and the second well chamber (112) are both equipped with ladders (7).

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