Integrated rain and sewage diversion and interception device

Abstract

The utility model discloses an integrated rain and sewage shunt intercepting device relates to municipal drainage technical field. The device includes shaft, control unit, rainwater inlet pipe, sewage outlet pipe and rainwater outlet pipe. Two outlet pipes are equipped with electric valve respectively, and rainwater inlet pipe is equipped with water quality monitor, and the shaft is equipped with liquid level sensor, and the device still contains rain gauge. Control unit opens and closes according to water quality and rainfall data intelligent control valve, realizes accurate shunt: intercepts the initial rainwater of serious pollution to sewage plant, and the clean mid and late rainwater is discharged into natural water body. In addition, by setting liquid level sensor at rainwater outlet, the valve can also be automatically closed when the external water level is too high, effectively preventing river water from flowing back. The utility model realizes the accurate, automatic shunt of rain and sewage through source water quality monitoring and intelligent linkage control, effectively roots the river pollution and prevents the overload of sewage plant, and has the functions of intelligent anti-backflow and remote operation and maintenance.

Description

Technical Field

[0001] This utility model relates to the field of municipal drainage and environmental protection technology, specifically an integrated rainwater and sewage diversion and interception device. Background Technology

[0002] The old city area generally uses a combined sewer system, where large amounts of mixed rainwater and sewage are discharged directly into natural water bodies through overflow wells during rainfall, causing serious non-point source pollution. Therefore, upgrading the existing combined sewer system to separate rainwater and sewage is a key means of controlling water pollution at its source.

[0003] Traditional methods of separating stormwater and sewage systems rely on constructing two independent stormwater and sewage pipe networks. These projects involve huge investments, long construction periods, and significant impacts on urban traffic and residents' lives. They are also extremely difficult to implement in the narrow underground spaces of old urban areas. Therefore, integrated interceptor well equipment has emerged as a highly efficient and economical alternative solution. This type of equipment is typically installed at the outlet of the stormwater pipe network or at the sewage outlet. Through weirs, gate valves, and other facilities, it intercepts heavily polluted mixed stormwater and sewage water at the initial stage of rainfall, diverting it to the sewage pipe network and sending it to the sewage treatment plant.

[0004] However, existing interception well equipment mostly uses simple level control or time control, which cannot accurately identify the water quality of rainwater. This may lead to the accidental interception of clean rainwater, increasing the unnecessary load on sewage treatment plants, or the accidental discharge of initially polluted rainwater, causing river pollution.

[0005] Therefore, we propose an integrated rainwater and sewage diversion and interception device. Utility Model Content

[0006] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides an integrated rainwater and sewage diversion and interception device. Through source water quality monitoring and intelligent linkage control, it achieves precise and automatic diversion of rainwater and sewage, effectively eradicating river pollution and preventing sewage treatment plant overload. It also has intelligent anti-backflow and remote operation and maintenance functions, which can effectively solve the problems in the background technology.

[0007] (II) Technical Solution To achieve the above objectives, the technical solution adopted by this utility model is as follows: an integrated rainwater and sewage diversion and interception device, comprising a well, a control unit, and rainwater inlet pipe, sewage outlet pipe, and rainwater outlet pipe installed on the well. The rainwater inlet pipe is connected to the upper part of one side of the well, and the sewage outlet pipe and rainwater outlet pipe are respectively connected to the lower parts of the left and right sides of the well. The connection points of the sewage outlet pipe and rainwater outlet pipe with the well are respectively provided with a first electric valve and a second electric valve for opening and closing the pipeline. A first liquid level sensor for monitoring the water level in the well is provided on the upper part of the inner wall of the well away from the rainwater inlet pipe. A water quality monitor for monitoring the quality of the incoming water is provided on the rainwater inlet pipe. The device also includes a rain gauge for monitoring external rainfall, located on one side of the control unit. The control unit is electrically connected to the first electric valve, the second electric valve, the first liquid level sensor, the water quality monitor, and the rain gauge. The control unit is configured to control the opening and closing of the first electric valve and the second electric valve according to the monitoring data of the water quality monitor and the rain gauge.

[0008] Preferably, the outlet end of the rainwater outlet pipe is further provided with a second liquid level sensor for monitoring the external water level of the external natural water body. The second liquid level sensor is electrically connected to the control unit. The control unit is also configured to control the second electric valve to close when the external water level detected by the second liquid level sensor is higher than the internal water level detected by the first liquid level sensor.

[0009] Preferably, the control unit includes a controller and a wireless communication module electrically connected to the controller, wherein the wireless communication module is a 4G communication module or an NB-IoT communication module.

[0010] Preferably, both the first electric valve and the second electric valve are electric butterfly valves.

[0011] Preferably, the well casing is made of fiberglass or 304 stainless steel.

[0012] Preferably, both the first liquid level sensor and the second liquid level sensor are ultrasonic liquid level sensors.

[0013] (III) Beneficial Effects Compared with the prior art, this utility model provides an integrated rainwater and sewage diversion and interception device, which has the following beneficial effects: 1. This integrated rainwater and sewage diversion and interception device, by installing a water quality monitoring instrument on the rainwater inlet, can directly and accurately monitor the water pollution status of rainwater in real time from the source. Combined with the rainfall data from the rain gauge, the control unit intelligently controls the opening and closing of the valve. This allows the system to accurately distinguish between heavily polluted initial rainwater and relatively clean mid-to-late-stage rainwater, ensuring that the former is intercepted and flows into the sewage pipe network, while the latter is discharged into natural water bodies. This fundamentally avoids river pollution and reduces the amount of rainwater entering the sewage treatment plant, significantly reducing its operating load and energy consumption.

[0014] 2. This integrated rainwater and sewage diversion and interception device, by installing a second liquid level sensor at the outlet end of the rainwater outlet pipe, monitors the water level of the external natural water body in real time and compares it with the data of the first liquid level sensor inside the well. When it is determined that there is a risk of backflow, the control unit will immediately close the second electric valve, forming a reliable physical barrier, effectively preventing river water from backflowing into the municipal drainage system, completely solving the risk of waterlogging that may be caused by traditional interception wells during the flood season or high tide, and improving the safety and reliability of the entire drainage system.

[0015] 3. This integrated rainwater and sewage diversion and interception device, with the help of a wireless communication module (such as 4G / NB-IoT), can remotely transmit all on-site monitoring data (water level, water quality, rainfall, equipment status) to the central monitoring platform and receive remote instructions. This allows managers to monitor the equipment's operating status in real time, set parameters, and intervene remotely, achieving true unattended operation and intelligent cluster management, reducing the cost of manual inspection and management difficulty. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an integrated rainwater and sewage diversion and interception device according to the present invention.

[0017] Figure 2 This is a schematic diagram of the control unit in an integrated rainwater and sewage diversion and interception device of this utility model.

[0018] In the diagram: 1. Well shaft; 2. Control unit; 3. Rainwater inlet pipe; 4. Sewage outlet pipe; 5. Rainwater outlet pipe; 6. First electric valve; 7. Second electric valve; 8. First liquid level sensor; 9. Water quality monitor; 10. Rain gauge; 11. Second liquid level sensor; 12. Controller; 13. Wireless communication module. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0020] This embodiment is an integrated rainwater and sewage diversion and interception device.

[0021] like Figure 1-2 As shown, an integrated rainwater and sewage diversion and interception device includes a well casing 1, a control unit 2, a rainwater inlet pipe 3, a sewage outlet pipe 4, and a rainwater outlet pipe 5. The rainwater inlet pipe 3 is connected to the upper part of one side of the well casing 1 and is used to introduce water from the municipal rainwater pipe into the well casing. The sewage outlet pipe 4 and the rainwater outlet pipe 5 are respectively connected to the lower parts of the left and right sides of the well casing 1.

[0022] A first electric valve 6 is installed at the connection between the sewage outlet pipe 4 and the well shaft 1, and a second electric valve 7 is installed at the connection between the rainwater outlet pipe 5 and the well shaft 1. In this embodiment, both the first electric valve 6 and the second electric valve 7 are electric butterfly valves with good sealing performance and rapid opening and closing, used to switch the corresponding pipelines on and off.

[0023] A first liquid level sensor 8 is installed on the upper part of the inner wall of the well shaft 1, away from the rainwater inlet pipe 3. In this embodiment, the first liquid level sensor 8 is an ultrasonic liquid level sensor, which is used to monitor the water level in the well shaft 1 in real time in a non-contact manner and transmit the signal to the control unit 2.

[0024] A water quality monitor 9 is installed on the rainwater inlet pipe 3 to monitor key water quality indicators such as chemical oxygen demand (COD), ammonia nitrogen (NH3-N), and turbidity in the inlet water in real time before sewage and rainwater are mixed, so as to obtain real and accurate water quality data from the source.

[0025] The device also includes a rain gauge 10, which is installed on a support column or open ground on one side of the control unit 2 to monitor the intensity of external rainfall and the cumulative rainfall in real time.

[0026] The control unit 2 is the core of this device, and it includes a controller 12 and a wireless communication module 13 electrically connected to the controller 12. The wireless communication module 13 is preferably a 4G communication module or an NB-IoT communication module. The control unit 2 is electrically connected to the first electric valve 6, the second electric valve 7, the first liquid level sensor 8, the water quality monitor 9, and the rain gauge 10 via cables, respectively, to receive monitoring data from each sensor and issue control commands according to preset program logic.

[0027] To further enhance functionality, a second liquid level sensor 11 is also provided at the outlet end of the rainwater outlet pipe 5. In this embodiment, this sensor also adopts an ultrasonic liquid level sensor to monitor the water level of external natural water bodies (such as rivers) in real time. The second liquid level sensor 11 is also electrically connected to the control unit 2.

[0028] The working principle and process of this utility model are as follows: Sunny Day Mode: At this time, the rain gauge 10 has no signal, and the water quality monitor 9 detects that the rainwater inlet pipe 3 contains domestic sewage with a high concentration of pollutants. Based on this, the control unit 2 determines that it is in "sewage mode", controls the first electric valve 6 to open and the second electric valve 7 to close, intercepting all sewage and transporting it to the sewage treatment plant through the sewage outlet pipe 4.

[0029] Initial rainfall pattern: Rain gauge 10 detects the start of rainfall, and water quality monitor 9 detects that the incoming initial rainwater has poor quality (high pollutant concentration). Control unit 2 determines it as "polluted runoff" and keeps the first electric valve 6 open and the second electric valve 7 closed, intercepting the heavily polluted initial rainwater and diverting it to the sewage network.

[0030] Heavy rain and post-rainfall mode: As rainfall continues, the runoff scouring effect weakens, and the water quality monitor 9 detects that the influent water quality becomes cleaner. The control unit 2 combines the data from the rain gauge 10 and the water quality monitor 9, determines it to be "clean rainwater," and then controls the first electric valve 6 to close and the second electric valve 7 to open, allowing the cleaner mid-to-late-stage rainwater to be directly discharged into natural water bodies through the rainwater outlet pipe 5, thereby reducing the load on the sewage treatment plant.

[0031] Anti-backflow mode: Throughout the operation, the control unit 2 continuously compares the data from the first liquid level sensor 8 (water level in the well) and the second liquid level sensor 11 (river water level). When the river water level is detected to be higher than the water level in the well, indicating a risk of backflow, the control unit 2 will immediately issue a command to close the second electric valve 7, forming a physical barrier to effectively prevent river water from flowing back into the municipal pipe network system.

[0032] Remote monitoring: Throughout the process, the operating status of all equipment, as well as data collected by sensors such as water level, water quality, and rainfall, are uploaded in real time to the remote monitoring center via the wireless communication module 13, enabling unattended operation and intelligent management. Staff can also remotely set parameters or manually control valves through the monitoring platform, making operation convenient.

[0033] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An integrated rainwater and sewage diversion and interception device, comprising a well shaft (1), a control unit (2), and a rainwater inlet pipe (3), a sewage outlet pipe (4), and a rainwater outlet pipe (5) disposed on the well shaft (1), wherein the rainwater inlet pipe (3) is connected to the upper part of one side of the well shaft (1), and the sewage outlet pipe (4) and the rainwater outlet pipe (5) are respectively connected to the lower parts of the left and right sides of the well shaft (1), characterized in that: The connection points of the sewage outlet pipe (4) and the rainwater outlet pipe (5) with the well (1) are respectively provided with a first electric valve (6) and a second electric valve (7) for switching the pipeline on and off. The upper part of the inner wall of the well (1) away from the rainwater inlet pipe (3) is provided with a first liquid level sensor (8) for monitoring the water level inside the well (1). The rainwater inlet pipe (3) is equipped with a water quality monitoring instrument (9) for monitoring the quality of the incoming water. The device also includes a rain gauge (10) for monitoring external rainfall, located on one side of the control unit (2); The control unit (2) is electrically connected to the first electric valve (6), the second electric valve (7), the first liquid level sensor (8), the water quality monitor (9), and the rain gauge (10), respectively; the control unit (2) is configured to control the opening and closing of the first electric valve (6) and the second electric valve (7) according to the monitoring data of the water quality monitor (9) and the rain gauge (10).

2. The integrated rainwater and sewage diversion and interception device according to claim 1, characterized in that: The outlet end of the rainwater outlet pipe (5) is also provided with a second liquid level sensor (11) for monitoring the external water level of the external natural water body. The second liquid level sensor (11) is electrically connected to the control unit (2). The control unit (2) is also configured to control the second electric valve (7) to close when the external water level monitored by the second liquid level sensor (11) is higher than the internal water level monitored by the first liquid level sensor (8).

3. The integrated rainwater and sewage diversion and interception device according to claim 2, characterized in that: The control unit (2) includes a controller (12) and a wireless communication module (13) electrically connected to the controller (12), wherein the wireless communication module (13) is a 4G communication module or an NB-IoT communication module.

4. The integrated rainwater and sewage diversion and interception device according to claim 1, characterized in that: Both the first electric valve (6) and the second electric valve (7) are electric butterfly valves.

5. The integrated rainwater and sewage diversion and interception device according to claim 1, characterized in that: The well casing (1) is made of fiberglass or 304 stainless steel.

6. The integrated rainwater and sewage diversion and interception device according to claim 1, characterized in that: Both the first liquid level sensor (8) and the second liquid level sensor (11) are ultrasonic liquid level sensors.

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