Drainage area anti-overflow and pollution control method and system based on liquid level-water quality collaborative regulation

Abstract

The application discloses a kind of based on liquid level-water quality collaborative control drainage area prevents and spills and pollution control method and system. The method includes the steps such as division and topological construction of area, dynamic acquisition of multi-source data, establish " station-net group control " mathematical model based on space replacement and water quality inferiority ordering, collaborative control strategy generation and execution etc. The present application can successfully open up the in-situ elastic storage space inside the pipe network under the condition of rigid hard injury without physical storage tank by using pump station variable frequency feedforward mechanism;Through the means of Internet of Things, the system can scientifically adapt to return to "pure diversion mode" under extreme rainstorm, and give consideration to the three safety red lines of ecological environmental protection, sewage main pipe not spilling and rainwater dry pipe not causing waterlogging.

Description

Technical Field

[0001] This invention relates to the field of smart water technology, specifically to a method and system for preventing overflow and controlling pollution in drainage areas based on the coordinated regulation of liquid level and water quality. Background Technology

[0002] In the actual operation of the urban separate drainage system, due to historical deficiencies in the pipe network and problems such as incorrect or mixed connections, there is a widespread phenomenon of "mixed or incorrect connections" between the stormwater pipe network and the sewage pipe network. During rainfall, a large amount of rainwater mixes into the sewage system, resulting in high water levels in the sewage pipe network; at the same time, highly polluted initial rainwater, due to insufficient interception capacity, is very likely to overflow into stormwater wells and eventually enter rivers, causing serious pollution to the receiving water bodies.

[0003] Existing measures often involve constructing integrated smart interception wells in areas with severe cross-connections. However, these integrated smart interception wells are mostly isolated, single-well controls lacking a holistic perspective. They typically only control pumping based on the water level within their own well. When multiple interception wells in an area intercept water simultaneously, the downstream main sewage pipe can easily overflow instantly, causing sewage overflows in low-lying areas. Furthermore, traditional flood control scheduling generally relies on liquid level regulation, neglecting water quality. Current pipeline overflow prevention scheduling often involves blindly, proportionally, or geographically closing upstream interception gates when the sewage main pipe water level exceeds the standard. This results in the most polluted initial rainwater being discharged into rivers, while cleaner later rainwater occupies sewage network capacity. Regarding pollution control, conventional initial rainwater interception control relies on costly and large-scale physical initial rainwater storage tanks. For rigid, old areas without the conditions for constructing physical storage tanks, existing technologies often fail or can only result in blind direct discharge. Summary of the Invention

[0004] The purpose of this invention is to provide a method and system for preventing overflow and controlling pollution in drainage areas based on the coordinated regulation of liquid level and water quality. It aims to address drainage areas without physical storage tanks but equipped with variable frequency booster pump stations, dynamically balancing the safety of sewage system overflow prevention with the environmental friendliness of controlling pollution from initial rainwater runoff in rivers. Under the premise of not causing urban flooding and preventing sewage overflow, it maximizes the interception of highly polluted initial rainwater and utilizes the in-situ regulation potential of the pipe network.

[0005] A first aspect of the present invention provides a method for preventing overflow and controlling pollution in drainage areas based on the coordinated regulation of liquid level and water quality, comprising the following steps: S1, taking the upstream water collection network of a single sewage lifting pump station as the boundary, divides an independent drainage control area; identifies all n interception wells and their corresponding downstream rainwater discharge wells in the area, and sorts out the typical overflow points and key control nodes of the sewage network in the area; S2, deploy online water quality monitoring instruments in each interception well to collect real-time water quality index vector WQ reflecting the concentration of water pollutants; at the same time, deploy level gauges at typical overflow points and key control nodes of the sewage pipe network to collect real-time dynamic level data L of the sewage pipe network. S3 defines the entire sewage trunk pipeline as an elastic in-situ storage body, and constructs a distributed control model with the objective function of minimizing the total load of mixed pollutants discharged into the river, and with multiple constraints such as the sewage pipeline spatial replacement rate, the safety water level at key points and the frequency conversion operation range of the pumping station. S4, the central server executes the following dynamic control logic by coordinating the pump station frequency regulation with the gate opening in a time sequence: (1) Dynamic frequency conversion space replacement stage: In the early stage of rainfall, when the real-time liquid level meets the requirements At that time, all interception well gates remained 100% open to intercept the initial rainfall; the central server monitored the real-time liquid level and water level rise rate. The operating frequency of the booster pump station is adjusted in real time using a feedforward-feedback composite frequency conversion algorithm. : ; By using the large flow rate of the pumping station to create a dynamic "hydraulic negative pressure" in the main sewage network, the water level in the main pipe is forcibly lowered, and the in-situ storage space is dynamically shifted. In the formula: The reference design liquid level for starting the frequency converter regulation of the pump station, in meters; To improve the water collection tank or forebay of the pumping station Real-time dynamic liquid level at any given moment, in meters (m). The high water level is the safety warning level for the pumping station, and the unit is meters (m). To improve the pumping station Real-time dynamic output frequency at any given moment, in units of ; To increase the maximum frequency of operation of the pumping station, the unit is... ; To increase the minimum variable frequency operating frequency of the pumping station, the unit is... ; Corresponding to the reference liquid level The basic operating frequency of the pumping station, in units of ; This is the proportional control coefficient for the static deviation of the liquid level, in units of... ; This is the differential control coefficient for the rate of change of liquid level, in units of... ; The rate of change of liquid level over time, i.e., the real-time fluctuation rate, is expressed in units of... .

[0006] Preferably, the objective function and constraints of the distributed control model in S3 are as follows: The objective function is: ; The constraints are: ; In the formula: Total mass of pollutants; Real-time opening of the electric gate on the sewage connection pipe side The first regulation Dynamic discharge flow of river overflow from each intercepting well; For the first Real-time pollutant concentration in the downstream rainwater well of each interceptor well; To adjust the calculation step size; Real-time liquid levels at key monitoring points in the sewage pipe network; This corresponds to the maximum permissible safe water level red line; To increase the minimum variable frequency operating frequency of the pumping station; To improve the pumping station Real-time dynamic output frequency at any given moment; To increase the maximum frequency of operation of the pumping station; Real-time opening of the electric gate on the sewage connection pipe side Directly driven Dynamic interception flow rate of each interception well; To increase the flow rate of the pumping station; The dynamic water storage capacity of the area's sewage pipe network; This is the water quality deterioration interception priority matrix generated by a descending sorting algorithm.

[0007] Preferably, the real-time water quality index vector WQ includes at least one of COD concentration, ammonia nitrogen concentration, and total phosphorus concentration; the water quality index vector WQ is used to determine the pollution level of the water from the intercepting well and serves as the basis for priority matrix sorting.

[0008] Preferably, in step S1, the typical overflow points are obtained by coupling and screening historical pipeline operation liquid level big data, pipeline diameter parameters, pipeline slope parameters, and catchment area of ​​the area; the key control nodes include pump station forebay, main pipeline junction nodes, pipeline inverted siphon nodes, and intercepting well connecting pipe nodes.

[0009] Preferably, the level gauge is a high-precision hydrostatic level transmitter with a sampling frequency of not less than 10Hz; the online water quality monitor uses a spectral water quality sensor to achieve millisecond-level clock synchronization with the level gauge.

[0010] Preferably, the dynamic control logic in S4 further includes: (2) Water quality deterioration elimination stage: when the real-time liquid level Furthermore, the frequency of the sewage pumping station has been forcibly locked to the highest frequency. At that time, the system stopped blindly and comprehensively blocking traffic and retrieved the priority matrix. In order of increasing water quality concentration, the gate openings of the corresponding interception wells are proactively reduced or closed sequentially. It prevents relatively clean rainwater from entering, freeing up space in the main sewage pipe and maintaining the high-concentration initial rainwater interception channel at the top of the matrix.

[0011] Preferably, it also includes the S5 steady-state backtracking control step: after the rainfall ends and the liquid level at all key points in the pipeline network drops back to the normal steady-state water level, the system resets all interception well gates to the fully open state, the pump station resumes rated power frequency steady-state operation, clears the temporary calculation parameters of the distributed control model, and waits for the next round of rainfall to trigger control.

[0012] A second aspect of the present invention provides a system for implementing the method described in any of the preceding claims, characterized in that it comprises: (1) Topology construction module: used to divide independent drainage control areas with the upstream water collection network of a single sewage lifting pump station as the boundary, and identify all interception wells, corresponding downstream rainwater discharge wells and key control nodes of the sewage network within the area; (2) Multi-source data acquisition module: used to acquire the real-time water quality index vector WQ of each intercepting well, as well as the dynamic liquid level data of the key control node. ; (3) Core model construction module: used to construct a distributed "station-network group control" mathematical model, with the objective function being to minimize the total load of mixed pollutants discharged into the river, and multiple constraints being the spatial replacement rate of the sewage pipe network, the safe water level at key points, and the frequency conversion operation range of the pumping station, and generating a water quality deterioration interception priority matrix. ; (4) Collaborative execution module: used to execute dynamic liquid level data Regulate the operating frequency of the pumping station And when the liquid level triggers an early warning and the pump station reaches its maximum frequency, the priority matrix is ​​retrieved. The gates of the corresponding intercepting wells are adjusted to be reduced or closed in order of increasing water concentration.

[0013] The present invention also provides an electronic device, including a memory and a processor, wherein the memory stores a computer program, and when the processor executes the computer program, it implements the drainage area overflow prevention and pollution control method based on liquid level-water quality coordinated regulation as described in any of the preceding claims.

[0014] The present invention also provides a computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, it implements the steps of the drainage area overflow prevention and pollution control method based on liquid level-water quality coordinated regulation as described in any of the above claims.

[0015] Compared with the prior art, the present invention has the following beneficial effects: This invention successfully opens up in-situ elastic storage space inside the pipeline network by utilizing the frequency conversion feedforward mechanism of the pump station under the rigid condition of no physical storage tank.

[0016] This invention introduces a water quality deterioration matrix P as an elimination chain, ensuring that during dangerous periods when the pipeline capacity is extremely limited, the sewage system can "refinedly intercept and transport the relatively high-concentration, highly polluted first rainwater" through "on-demand interception".

[0017] This invention can take into account both flood control and overflow prevention: by using the Internet of Things, the system can scientifically and adaptively return to the "pure diversion mode" under extreme rainstorms, thus taking into account the triple safety red lines of ecological protection, preventing overflow of sewage main pipes, and preventing waterlogging caused by rainwater main pipes. Attached Figure Description

[0018] Figure 1 This is a flowchart of the present invention. Detailed Implementation

[0019] The embodiments of the present invention will be further described below with reference to the accompanying drawings. It should be understood that the following embodiments are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0020] This invention discloses a method for preventing overflow and controlling pollution in drainage areas based on the coordinated regulation of liquid level and water quality, comprising the following steps: S1, taking the upstream water collection network of a single sewage lifting pump station as the boundary, divides an independent drainage control area; identifies all n interception wells and their corresponding downstream rainwater discharge wells in the area, and sorts out the typical overflow points and key control nodes of the sewage network in the area; S2, deploy online water quality monitoring instruments in each interception well to collect real-time water quality index vector WQ reflecting the concentration of water pollutants; at the same time, deploy level gauges at typical overflow points and key control nodes of the sewage pipe network to collect real-time dynamic level data L of the sewage pipe network. S3 defines the entire sewage trunk pipeline as an elastic in-situ storage body, and constructs a distributed control model with the objective function of minimizing the total load of mixed pollutants discharged into the river, and with multiple constraints such as the sewage pipeline spatial replacement rate, the safety water level at key points and the frequency conversion operation range of the pumping station. S4, the central server executes the following dynamic control logic by coordinating the pump station frequency regulation with the gate opening in a time sequence: (1) Dynamic frequency conversion space replacement stage: In the early stage of rainfall, when the real-time liquid level meets the requirements At that time, all interception well gates remained 100% open to intercept the initial rainfall; the central server monitored the real-time liquid level and water level rise rate. The operating frequency of the booster pump station is adjusted in real time using a feedforward-feedback composite frequency conversion algorithm. : ; By using the large flow rate of the pumping station to create a dynamic "hydraulic negative pressure" in the main sewage network, the water level in the main pipe is forcibly lowered, and the in-situ storage space is dynamically shifted. In the formula: The reference design liquid level for starting the frequency converter regulation of the pump station, in meters; To improve the water collection tank or forebay of the pumping station Real-time dynamic liquid level at any given moment, in meters (m). The high water level is the safety warning level for the pumping station, and the unit is meters (m). To improve the pumping station Real-time dynamic output frequency at any given moment, in units of ; To increase the maximum frequency of operation of the pumping station, the unit is... ; To increase the minimum variable frequency operating frequency of the pumping station, the unit is... ; Corresponding to the reference liquid level The basic operating frequency of the pumping station, in units of ; This is the proportional control coefficient for the static deviation of the liquid level, in units of... ; This is the differential control coefficient for the rate of change of liquid level, in units of... ; The rate of change of liquid level over time, i.e., the real-time fluctuation rate, is expressed in units of... .

[0021] In some preferred embodiments, the objective function and constraints of the distributed control model in S3 are as follows: The objective function is: ; The constraints are: ; In the formula: Total mass of pollutants; Real-time opening of the electric gate on the sewage connection pipe side The first regulation Dynamic discharge flow of river overflow from each intercepting well; For the first Real-time pollutant concentration in the downstream rainwater well of each interceptor well; To adjust the calculation step size; Real-time liquid levels at key monitoring points in the sewage pipe network; This corresponds to the maximum permissible safe water level red line; To increase the minimum variable frequency operating frequency of the pumping station; To improve the pumping station Real-time dynamic output frequency at any given moment; To increase the maximum frequency of operation of the pumping station; Real-time opening of the electric gate on the sewage connection pipe side Directly driven Dynamic interception flow rate of each interception well; To increase the flow rate of the pumping station; The dynamic water storage capacity of the area's sewage pipe network; This is the water quality deterioration interception priority matrix generated by a descending sorting algorithm.

[0022] Specifically, the real-time water quality index vector WQ includes at least one of COD concentration, ammonia nitrogen concentration, and total phosphorus concentration; the water quality index vector WQ is used to determine the pollution level of the water coming from the intercepting well, serving as the basis for priority matrix sorting. In step S1, the typical overflow points are obtained through coupling screening using historical pipeline operation liquid level big data, pipeline diameter parameters, pipeline slope parameters, and catchment area of ​​the area; the key control nodes include the pump station forebay, main pipeline junction nodes, pipeline inverted siphon nodes, and intercepting well connecting pipe nodes. The liquid level gauge is preferably a high-precision hydrostatic liquid level transmitter with a sampling frequency of not less than 10Hz; the online water quality monitoring instrument preferably uses a spectral water quality sensor to achieve millisecond-level clock synchronization sampling with the liquid level gauge.

[0023] In a preferred embodiment, the dynamic control logic in S4 further includes: (2) Water quality deterioration elimination stage: when the real-time liquid level Furthermore, the frequency of the sewage pumping station has been forcibly locked to the highest frequency. At that time, the system stopped blindly and comprehensively blocking traffic and retrieved the priority matrix. In order of increasing water quality concentration, the gate openings of the corresponding interception wells are proactively reduced or closed sequentially. It prevents relatively clean rainwater from entering, freeing up space in the main sewage pipe and maintaining the high-concentration initial rainwater interception channel at the top of the matrix.

[0024] In a further preferred embodiment, the system also includes the S5 steady-state backtracking control step: after the rainfall ends and the liquid levels at all key points in the pipeline network fall back to the normal steady-state water level, the system resets all interception well gates to the fully open state, the pump station resumes rated power frequency steady-state operation, clears the temporary calculation parameters of the distributed control model, and waits for the next round of rainfall to trigger control.

[0025] In another preferred embodiment, the system for implementing any of the methods described above includes: (1) Topology construction module: used to divide independent drainage control areas with the upstream water collection network of a single sewage lifting pump station as the boundary, and identify all interception wells, corresponding downstream rainwater discharge wells and key control nodes of the sewage network within the area; (2) Multi-source data acquisition module: used to acquire the real-time water quality index vector WQ of each intercepting well, as well as the dynamic liquid level data of the key control node. ; (3) Core model construction module: used to construct a distributed "station-network group control" mathematical model, with the objective function being to minimize the total load of mixed pollutants discharged into the river, and multiple constraints being the spatial replacement rate of the sewage pipe network, the safe water level at key points, and the frequency conversion operation range of the pumping station, and generating a water quality deterioration interception priority matrix. ; (4) Collaborative execution module: used to execute dynamic liquid level data Regulate the operating frequency of the pumping station And when the liquid level triggers an early warning and the pump station reaches its maximum frequency, the priority matrix is ​​retrieved. The gates of the corresponding intercepting wells are adjusted to be reduced or closed in order of increasing water concentration.

[0026] The method of the present invention will be described below with reference to specific embodiments.

[0027] Please see Figure 1 This invention discloses a method for preventing overflow and controlling pollution in drainage areas based on the coordinated regulation of liquid level and water quality, comprising the following parts: 1. Zone division and topology construction In a specific instance, a level gauge is installed on a typical overflowing sewage well W in a sewage pumping station service area without a regulating tank. Based on the well depth and historical overflow statistics, a level gauge is set... There are three intercepting wells (J1, J2, and J3) in this area, each equipped with a water quality monitoring instrument. The frequency converter range of the sewage lift pump station is 30Hz~50Hz. The frequency modulation control coefficient is .

[0028] 2. Simulation of dynamic control process Example 1: Initial Stage of Rainfall (Spatial Displacement) The real-time water level of a typical overflowing sewage well W, 5 minutes after rainfall. The water level rose rapidly from 1.0m to 1.2m within one minute due to a sudden increase in rainfall; this is the rate of water level rise. =0.2 m / min. Gates J1, J2, and J3 maintain an opening of 100%. Substituting into the control equation: Results: The system detected a high rate of increase and pre-adjusted the pump station frequency to 36Hz. Increased pumping created a dynamic negative pressure space within the sewage trunk line, achieving in-situ regulation and storage of the pipeline network.

[0029] Example 2: Peak Rainfall Period (Water Quality Degradation and Diversion Regression) Continuous rainfall caused the water level at a typical overflowing sewage well (W) to rise rapidly to 2.3m, triggering the warning level. Furthermore, the sewage lift pump station frequency was locked at the highest frequency of 50Hz, and the pipe network's drainage capacity reached its limit. At this time, based on the real-time water quality of each inspection well: J1 interception well: COD = 400mg / L (high-concentration initial rainwater mixed with water), J2 interception well: COD = 150mg / L (medium-concentration intermediate mixed water), J3 interception well: COD = 50mg / L (clean late-stage rainwater), the system automatically generated a priority matrix, determining the elimination order as: J3>J2>J1. Execution method: The system immediately and completely closed the J3 gate (gate opening set to 0%). At this time, the drainage in the J3 local area adaptively reverted to the rainwater and sewage separation mode. The clean late-stage rainwater with a COD concentration of 50mg / L was directly discharged into the river using the original design flood discharge capacity of the rainwater pipe network, and the inflow of external rainwater into the sewage system was instantly cut off. At the same time, the system maintains the J1 interception well gate at 100% interception opening to ensure that the mixed water with the most severe COD concentration of 400mg / L preferentially enters the sewage system, thus achieving maximum pollution control under extreme conditions.

Claims

1. A method for preventing overflow and controlling pollution in drainage areas based on the coordinated regulation of liquid level and water quality, characterized in that, Includes the following steps: S1, taking the upstream water collection network of a single sewage lifting pump station as the boundary, divides an independent drainage control area; identifies all n interception wells and their corresponding downstream rainwater discharge wells in the area, and sorts out the typical overflow points and key control nodes of the sewage network in the area; S2, deploy online water quality monitoring instruments in each interception well to collect real-time water quality index vector WQ reflecting the concentration of water pollutants; at the same time, deploy level gauges at typical overflow points and key control nodes of the sewage pipe network to collect real-time dynamic level data L of the sewage pipe network. S3 defines the entire sewage trunk pipeline as an elastic in-situ storage body, and constructs a distributed control model with the objective function of minimizing the total load of mixed pollutants discharged into the river, and with multiple constraints such as the sewage pipeline spatial replacement rate, the safety water level at key points and the frequency conversion operation range of the pumping station. S4, the central server executes the following dynamic control logic by coordinating the pump station frequency regulation with the gate opening in a time sequence: (1) Dynamic frequency conversion space replacement stage: In the early stage of rainfall, when the real-time liquid level meets the requirements At that time, all interception well gates remained 100% open to intercept the initial rainfall; the central server monitored the real-time liquid level and water level rise rate. The operating frequency of the booster pump station is adjusted in real time using a feedforward-feedback composite frequency conversion algorithm. : ； By using the large flow rate of the pumping station to create a dynamic "hydraulic negative pressure" in the main sewage network, the water level in the main pipe is forcibly lowered, and the in-situ storage space is dynamically shifted. In the formula: The reference design liquid level for starting the frequency converter regulation of the pump station, in meters; To improve the water collection tank or forebay of the pumping station Real-time dynamic liquid level at any given moment, in meters (m). The high water level is the safety warning level for the pumping station, and the unit is meters (m). To improve the pumping station Real-time dynamic output frequency at any given moment, in units of ; To increase the maximum frequency of operation of the pumping station, the unit is... ; To increase the minimum variable frequency operating frequency of the pumping station, the unit is... ; Corresponding to the reference liquid level The basic operating frequency of the pumping station, in units of ; This is the proportional control coefficient for the static deviation of the liquid level, in units of... ; This is the differential control coefficient for the rate of change of liquid level, in units of... ; The rate of change of liquid level over time, i.e., the real-time fluctuation rate, is expressed in units of... .

2. The method according to claim 1, characterized in that, In step S4, the objective function and constraints of the distributed control model in S3 are as follows: The objective function is: ; The constraints are: ; In the formula: Total mass of pollutants; Real-time opening of the electric gate on the sewage connection pipe side The first regulation Dynamic discharge flow of river overflow from each intercepting well; For the first Real-time pollutant concentration in the downstream rainwater well of each interceptor well; To adjust the calculation step size; Real-time liquid levels at key monitoring points in the sewage pipe network; This corresponds to the maximum permissible safe water level red line; To increase the minimum variable frequency operating frequency of the pumping station; To improve the pumping station Real-time dynamic output frequency at any given moment; To increase the maximum frequency of operation of the pumping station; Real-time opening of the electric gate on the sewage connection pipe side Directly driven Dynamic interception flow rate of each interception well; To increase the flow rate of the pumping station; The dynamic water storage capacity of the area's sewage pipe network; This is the water quality deterioration interception priority matrix generated by a descending sorting algorithm.

3. The method according to claim 1, characterized in that, In step S2, the real-time water quality index vector WQ includes at least one of COD concentration, ammonia nitrogen concentration, and total phosphorus concentration; the water quality index vector WQ is used to determine the pollution level of the water coming from the intercepting well and serves as the basis for priority matrix sorting.

4. The method according to claim 1, characterized in that, In step S1, the typical overflow points are obtained by coupling and screening historical pipeline operation liquid level big data, pipeline diameter parameters, pipeline slope parameters, and area catchment area; the key control nodes include pump station forebay, main pipeline intersection nodes, pipeline inverted siphon nodes, and intercepting well connecting pipe nodes.

5. The method according to claim 1, characterized in that, In step S2, the level gauge is a high-precision hydrostatic level transmitter with a sampling frequency of not less than 10Hz; the online water quality monitor uses a spectral water quality sensor to achieve millisecond-level clock synchronization sampling with the level gauge.

6. The method according to claim 1, characterized in that, The dynamic control logic described in S4 also includes: (2) Water quality deterioration elimination stage: when the real-time liquid level Furthermore, the frequency of the sewage pumping station has been forcibly locked to the highest frequency. At that time, the system stopped blindly and comprehensively blocking traffic and retrieved the priority matrix. In order of increasing water quality concentration, the gate openings of the corresponding interception wells are proactively reduced or closed sequentially. It prevents relatively clean rainwater from entering, freeing up space in the main sewage pipe and maintaining the high-concentration initial rainwater interception channel at the top of the matrix.

7. The method according to claim 1, characterized in that, It also includes the S5 steady-state backtracking control steps: after the rainfall ends and the liquid levels at all key points in the pipeline network fall back to the normal steady-state water level, the system resets all interception well gates to the fully open state, the pumping station resumes rated power frequency steady-state operation, clears the temporary calculation parameters of the distributed control model, and waits for the next round of rainfall to trigger control.

8. A system for implementing the method according to any one of claims 1-7, characterized in that, include: (1) Topology construction module: used to divide independent drainage control areas with the upstream water collection network of a single sewage lifting pump station as the boundary, and identify all interception wells, corresponding downstream rainwater discharge wells and key control nodes of the sewage network within the area; (2) Multi-source data acquisition module: used to acquire the real-time water quality index vector WQ of each intercepting well, as well as the dynamic liquid level data of the key control node. ; (3) Core model construction module: used to construct a distributed "station-network group control" mathematical model, with the objective function being to minimize the total load of mixed pollutants discharged into the river, and multiple constraints being the spatial replacement rate of the sewage pipe network, the safe water level at key points, and the frequency conversion operation range of the pumping station, and generating a water quality deterioration interception priority matrix. ; (4) Collaborative execution module: used to execute dynamic liquid level data Regulate the operating frequency of the pumping station And when the liquid level triggers an early warning and the pump station reaches its maximum frequency, the priority matrix is ​​retrieved. The gates of the corresponding intercepting wells are adjusted to be reduced or closed in order of increasing water concentration.

9. An electronic device comprising a memory and a processor, wherein the memory stores a computer program, characterized in that: When the processor executes the computer program, it implements the drainage area overflow prevention and pollution control method based on liquid level-water quality coordinated regulation as described in any one of claims 1 to 7.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by the processor, it implements the steps of the drainage area overflow prevention and pollution control method based on liquid level-water quality coordinated regulation as described in any one of claims 1 to 7.

Images