Sewage pump station, regulation and storage tank and sewage interception main pipe linkage operation method

Abstract

The invention provides a linkage operation method for a sewage pump station, a regulation and storage tank and a sewage interception main pipe, which is applied to a linkage control system, the system comprises a first sewage interception main pipe, a second sewage interception main pipe, a pump station water inlet pipe, a sewage pump station, a regulation and storage tank, a first sewage interception main pipe flowmeter, a second sewage interception main pipe flowmeter and a pump station water inlet pipe flowmeter; the first pollutant intercepting main pipe and the storage pond are respectively communicated with the sewage pump station, the second pollutant intercepting main pipe is communicated with the storage pond, and the first pollutant intercepting main pipe flow meter and the second pollutant intercepting main pipe flow meter are respectively arranged on the first pollutant intercepting main pipe and the second pollutant intercepting main pipe. The flow of the first sewage interception main pipe, the second sewage interception main pipe and the pump station water inlet pipe is monitored in real time, different operation strategies are adopted for operation according to different operation working conditions, the sewage overflow frequency and the sewage overflow amount of the combined system drainage system are reduced to the maximum extent, the system operation efficiency and the load balance are improved, and the system safety is improved. The impact resistance and the safety of the system are enhanced, and meanwhile, the energy consumption and the operation cost are optimized.

Description

Technical Field

[0001] This invention belongs to the field of wastewater treatment technology, and specifically relates to a method for alternating operation of main and standby wastewater pumping stations. Background Technology

[0002] In the field of wastewater treatment, wastewater pumping stations and interceptor sewers are crucial components of the wastewater discharge system. Due to incomplete separation of rainwater and wastewater, large amounts of rainwater mix with the wastewater discharge system during rainy days, causing wastewater pumping stations and interceptor sewers to operate under overload conditions, posing a risk of wastewater overflow. Currently, the common method to control wastewater overflow from pumping stations and interceptor sewers is to construct a regulating tank near the pumping station and use submersible pumps to pump the wastewater stored in the regulating tank to the newly constructed interceptor sewer. However, in actual operation, due to unreasonable operation methods of pumping stations and regulating tanks, wastewater overflow still occurs in the interceptor sewer during rainy days, and the energy consumption of pumping stations and regulating tanks is high. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a method for the coordinated operation of sewage pumping stations, storage tanks and intercepting sewers. By real-time monitoring of the flow rate of the intercepting sewer, the flow rate of the pumping station inlet pipe, and the liquid level of the pumping station and storage tank, combined with intelligent control, the optimal sewage discharge path is automatically selected to reduce the frequency and flow of sewage overflow in the intercepting sewer and reduce the energy consumption of the pumping station.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: A method for the coordinated operation of a sewage pumping station, a regulating tank, and an intercepting sewer main is provided, which is applied to a linkage control system. The linkage control system includes a first intercepting sewer main, a second intercepting sewer main, a pumping station inlet pipe, a sewage pumping station, a regulating tank, a flow meter for the first intercepting sewer main, a flow meter for the second intercepting sewer main, and a flow meter for the pumping station inlet pipe. The first intercepting sewer main and the regulating tank are respectively connected to the sewage pumping station, and the second intercepting sewer main is connected to the regulating tank. The flow meters for the first intercepting sewer main and the second intercepting sewer main are respectively installed on the first intercepting sewer main and the second intercepting sewer main. The method includes the following steps: Step 1: Calculate the normal operating flow limit Q for the first and second intercepting sewer mains. z1 Q z2 ; Step 2: Calculate the operating power P of the pumping station and regulating reservoir under full load conditions. b P t ; Step 3: Use the flow meters of the first intercepting sewer main, the second intercepting sewer main, and the pump station inlet pipe to monitor their respective flow rates Q1, Q2, and Q3; Step 4: Determine the operating condition. The determination criteria are as follows: When Q3≤min(Qz1-Q1, Qz2-Q2), it is a low flow rate condition; When Qz1 - Q1 < Q3 ≤ min(Qz1 - Q1 + Qz2 - Q2Q3, Qc1 - Q1), it is the medium flow rate condition; When min(Qz1 - Q1 + Qz2 - Q2Q3, Qc1 - Q1) < Q3 ≤ Qc1 - Q1 + Qc2 - Q2, it is the high flow rate condition; When Q3 > Qc1 - Q1 + Qc2 - Q2, it is the overflow condition; Step Four: According to the different conditions determined in Step Three, adopt the corresponding operation modes for operation, where: Under the low flow rate condition: When P b ≤ P t , all the sewage is lifted and discharged to the first interception main pipe by the pumping station; when P b > P t , the sewage first enters the storage tank and is lifted and discharged to the second interception main pipe by the storage tank pump.

[0005] Preferably, the calculation formula for the flow rate limit Q z of the normal operation project pipeline is: Q z = ; ; The calculation formula for the flow rate limit Qc of the over - standard operation condition is: Q c = ; Among them, n is the Manning roughness coefficient, D is the pipe diameter, θ is the central angle, S is the hydraulic gradient, and α is the maximum design fullness stipulated in the "Outdoor Drainage Design Standard" (GB50014 - 2021).

[0006] Preferably, the calculation formulas for the operating powers P b and P t under the full - load conditions of the pumping station and the storage tank are as follows: P b / P t= ; Among them, Q is the rated flow rate, H is the rated head, and η is the pump efficiency.

[0007] Preferably, under the medium flow rate condition: The sewage is lifted and discharged to the first interception main pipe by the pumping station, and the excess sewage is temporarily stored in the storage tank; if it returns to the low flow rate condition before the storage tank is full, it operates according to the low flow rate condition; if it remains in the medium flow rate condition after the storage tank is full, the storage tank pump starts to pump the sewage in the storage tank to the second interception main pipe.

[0008] Preferred high-flow-rate operating condition: The pumping station and the regulating reservoir simultaneously pump water, and the outflow rate Q of the pumping station and the regulating reservoir is adjusted by adjusting the pump frequency. b Q t When P b ≤P t Flow rate Q of the regulating reservoir t =Qc2-Q2, Pump station outlet flow rate Q b =Q3-Q t When P b >P t Pump station outflow rate Q b =Qc1-Q1, Flow rate of the regulating reservoir effluent Q t =Q3-Q b .

[0009] Preferred overflow condition: The pumping station and regulating tank operate at full load in a manner that does not cause overflow of the intercepting sewer main, and the pumping station outlet flow rate Q b =Qc1-Q1, Flow rate of the regulating reservoir effluent Q t =Qc2-Q2; Flow rate Q exceeding the drainage capacity of the pumping station and regulating reservoir. y =Q1-Q b -Q t The water overflows through the overflow well in the pump station's inlet pipe.

[0010] Preferably, during operation under various conditions, the remaining operating times Tb and Tt of the pumping station and regulating reservoir are calculated in real time, using the following formula: T b = V b / (Q3- Q b ); T t = V t / (Q3- Q t ); Among them, V b V represents the remaining capacity of the pumping station. t The remaining capacity of the storage tank; when T b or T t When the value is less than the set threshold, the system issues a warning signal and automatically adjusts the operating parameters to extend the running time.

[0011] Preferably, the linkage control system further includes a water quality monitor installed on the pump station inlet pipe; when the monitored wastewater quality exceeds the preset standard, the system automatically switches to enhanced treatment mode, specifically operating as follows: Under low flow conditions, all sewage enters the regulating tank for pretreatment, and after meeting the standards, it is pumped out to the second intercepting sewer through the regulating tank pump. Under medium and high flow conditions, wastewater exceeding the standard should be stored in the regulating tank first, and the pumping station should pump out wastewater that does not exceed the standard to the first intercepting sewer. In the event of an overflow, wastewater exceeding the standard is transported to emergency treatment facilities through a dedicated pipeline to prevent direct overflow.

[0012] Preferably, the linkage control system further includes a weather forecast interface for acquiring rainfall forecast data for the next 24 hours, and the system automatically adjusts its operating strategy based on the rainfall forecast value. When the predicted rainfall is less than the set threshold, the system will continue to operate under the current conditions. When the predicted rainfall reaches the set threshold, the system will activate the storage tank in advance to lower the water level of the storage tank to below the safety line and increase the storage capacity. When the predicted rainfall exceeds the set threshold, the system enters flood control mode, prioritizing urban flood safety and suspending sewage pumping if necessary to ensure rapid rainwater discharge.

[0013] Preferably, the linkage control system further includes a remote monitoring center, which is connected to each monitoring and control device via a wireless communication network, and is used for: It displays real-time system operating status, flow data, water level data, and water quality data. Receive early warning signals from the system and notify relevant personnel via SMS, email, etc. Remotely control the operating parameters of pumping stations and regulating reservoirs to achieve remote manual intervention; Store historical operational data, establish a database, and provide data support for system optimization and decision-making; Generate statistical reports and trend analysis charts to intuitively display the system's operating status.

[0014] The present invention can achieve the following beneficial effects: This invention monitors the flow rates of the first intercepting sewer, the second intercepting sewer, and the pump station inlet pipe in real time. Based on different operating conditions, it automatically selects the most suitable operating method in conjunction with intelligent control. This achieves the goal of minimizing the frequency and volume of sewage overflow in combined sewer systems, improving system operating efficiency and load balance, enhancing system shock resistance and safety, and optimizing energy consumption and operating costs. Attached Figure Description

[0015] Figure 1 This is a system diagram of the present invention.

[0016] In the diagram: 1. First intercepting sewer main; 2. Second intercepting sewer main; 3. Pump station inlet pipe; 4. Sewage pump station; 5. Regulating tank; 6. Flow meter of the first intercepting sewer main; 7. Flow meter of the second intercepting sewer main; 8. Flow meter of the pump station inlet pipe; 9. Water quality analyzer. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] like Figure 1 As shown in the figure, the arrows represent the direction of water flow. The operating system of the present invention includes a first intercepting sewer main 1, a second intercepting sewer main 2, a pumping station inlet pipe 3, a sewage pumping station 4, a regulating tank 5, a first intercepting sewer main flow meter 6, a second intercepting sewer main flow meter 7, and a pumping station inlet pipe flow meter 8. The first intercepting sewer main 1 and the regulating tank 5 are respectively connected to the sewage pumping station 4, and the second intercepting sewer main 2 is connected to the regulating tank 5. The first intercepting sewer main flow meter 6 and the second intercepting sewer main flow meter 7 are respectively installed on the first intercepting sewer main 1 and the second intercepting sewer main 2.

[0019] In terms of runtime control, the following method shall be followed: Step 1: Calculate the normal operating flow limit Q for the first intercepting sewer main 1 and the second intercepting sewer main 2. z1 Q z2 ; Calculate the flow limit Q for the first intercepting sewer main 1 and the second intercepting sewer main 2 under above-standard operating conditions. c1 Q c2 ; Normal operating pipeline flow limit Q z The calculation formula is: Q z = ; ; The formula for calculating the flow limit Qc under conditions exceeding the standard is as follows: Q c = ; Where n is the Manning roughness coefficient, D is the pipe diameter, θ is the central angle, S is the hydraulic gradient, and α is the maximum design fullness as specified in the "Outdoor Drainage Design Standard" GB50014-2021. Step 2: Calculate the operating power P of the pumping station and regulating reservoir under full load conditions. b P t The calculation formula is: P b / P t= ; Where Q is the rated flow rate, H is the rated head, and η is the pump efficiency; Step 3: Use the first interception main pipe flowmeter 1, the second interception main pipe flowmeter 2, and the pump station inlet pipe flowmeter 8 to monitor their respective flows Q1, Q2, and Q3 respectively; Step 4: Determine the working conditions, and the determination conditions are as follows: When Q3 ≤ min{Qz1 - Q1, Qz2 - Q2}, it is a low-flow working condition; When Qz1 - Q1 < Q3 ≤ min{Qz1 - Q1 + Qz2 - Q2, Q3, Qc1 - Q1}, it is a medium-flow working condition; When min{Qz1 - Q1 + Qz2 - Q2, Q3, Qc1 - Q1} < Q3 ≤ Qc1 - Q1 + Qc2 - Q2, it is a high-flow working condition; When Q3 > Qc1 - Q1 + Qc2 - Q2, it is an overflow working condition; Step 4: According to the different working conditions determined in Step 3, adopt the corresponding operation modes for operation, where: Under the low-flow working condition: When P b ≤ P t , all the sewage is lifted and discharged to the first interception main pipe by the pump station; when P b > P t , the sewage first enters the storage tank and is lifted and discharged to the second interception main pipe by the storage tank pump.

[0020] Except for the low-flow working condition, for the medium-flow working condition, high-flow working condition, and overflow working condition, the following methods are respectively used to control the system operation: Under the medium-flow working condition: The sewage is lifted and discharged to the first interception main pipe by the pump station, and the excess sewage is temporarily stored in the storage tank; if it returns to the low-flow working condition before the storage tank is full, operate according to the low-flow working condition; if it remains in the medium-flow working condition after the storage tank is full, the storage tank pump starts to pump the sewage in the storage tank to the second interception main pipe; High-flow working condition: The pump station and the storage tank drain water simultaneously, and by adjusting the pump frequency, adjust the outlet flows Q b 、Q t of the pump station and the storage tank. When P b ≤ P t , the outlet flow Q t of the storage tank = Qc2 - Q2, and the outlet flow Q b of the pump station = Q3 - Q t ; when P b > P t , the outlet flow Q b of the pump station = Qc1 - Q1, and the outlet flow Q t of the storage tank = Q3 - Q b ; Overflow working condition: The pump station and the storage tank operate at full load in a way that does not cause the interception main pipe to overflow, and the outlet flow Q b= Qc1 - Q1, the discharge flow rate Q of the storage tank t = Qc2 - Q2; the flow rate Q exceeding the drainage capacity of the pumping station and the storage tank y = Q1 - Q b -Q t , and overflows through the overflow well of the pumping station inlet pipe.

[0021] The method for the coordinated operation of the sewage pumping station, the storage tank and the intercepting main sewer proposed in the above embodiments has significant advantages in terms of the operation efficiency of the sewage system, load balance, safety guarantee, etc. through multi-device collaborative control and dynamic adjustment of working conditions, which are mainly reflected in the following aspects: The multi-device linkage to optimize the flow distribution and the accurate load control based on the working conditions can improve the system operation efficiency and load balance. The buffering effect of the storage tank can reduce the overflow risk. The storage tank can temporarily store the excess sewage under medium and high flow conditions to avoid the direct overflow of the intercepting main sewer. For example: Under medium flow, if the storage tank is full and the low flow has not recovered, the system automatically starts the storage tank water pump to drain to the second intercepting main sewer, extending the system's anti-shock time; Under the overflow condition, the system operates at full load with priority Q b = Qc1 - Q1, Qt = Qc2 - Q2, and only discharges the flow rate Q exceeding the treatment capacity y through the overflow well, reducing the risk of pollutants being directly discharged into the environment.

[0022] In some preferred embodiments of the present invention, during the operation of each working condition, the remaining operation times Tb and Tt of the pumping station and the storage tank are calculated in real time, and the calculation formulas are as follows: Tb = Vb / (Q3 - Qb); Tt = Vt / (Q3 - Qt); where, Vb is the remaining capacity of the pumping station, and Vt is the remaining capacity of the storage tank; when Tb or Tt is less than the set threshold, the system issues a warning signal and automatically adjusts the operation parameters to extend the operation time.

[0023] In some other preferred embodiments, the linkage control system further includes a water quality monitor 9, which is installed on the pumping station inlet pipe 3; when it is detected that the sewage quality exceeds the preset standard, the system automatically switches to the enhanced treatment mode, and the specific operation mode is: Under low flow conditions, all the sewage enters the storage tank for pretreatment, and after reaching the standard, it is lifted and drained to the second intercepting main sewer by the storage tank water pump; Under medium and high flow conditions, the exceeding-standard sewage is preferentially stored in the storage tank, and the pumping station lifts and drains the non-exceeding-standard sewage to the first intercepting main sewer; Under the overflow condition, the exceeding-standard sewage is transported to the emergency treatment facility through a special pipeline to avoid direct overflow.

[0024] In some preferred embodiments, the linkage control system further includes a weather forecast interface for acquiring rainfall forecast data for the next 24 hours, and the system automatically adjusts its operating strategy based on the rainfall forecast values. When the predicted rainfall is less than the set threshold, the system will continue to operate under the current conditions. When the predicted rainfall reaches the set threshold, the system will activate the storage tank in advance to lower the water level of the storage tank to below the safety line and increase the storage capacity. When the predicted rainfall exceeds the set threshold, the system enters flood control mode, prioritizing urban flood safety and suspending sewage pumping if necessary to ensure rapid rainwater discharge.

[0025] This embodiment can collect data in real time through flow meters, water quality monitors, energy consumption modules, etc., and automatically determine the working conditions and switch the operating mode in combination with preset algorithms, thereby reducing manual intervention and improving management efficiency.

[0026] The above embodiments provide a dynamic early warning and emergency response mechanism. By calculating the remaining operating time (Tb, Tt), switching to enhanced treatment modes when water quality monitoring exceeds standards, and adjusting the storage capacity in advance through meteorological forecasting interfaces, system risks can be predicted in advance and emergency measures can be initiated. For example: Based on rainfall forecasts, the water level in the storage tanks is lowered in advance to reserve space for the mixed flow of rainwater and sewage during heavy rain, thus balancing flood control and pollution control needs.

[0027] In some preferred embodiments, the linkage control system further includes a remote monitoring center, which is connected to each monitoring and control device via a wireless communication network, and is used for: It displays real-time system operating status, flow data, water level data, and water quality data. Receive early warning signals from the system and notify relevant personnel via SMS, email, etc. Remotely control the operating parameters of pumping stations and regulating reservoirs to achieve remote manual intervention; Store historical operational data, establish a database, and provide data support for system optimization and decision-making; Generate statistical reports and trend analysis charts to intuitively display the system's operating status.

[0028] The remote monitoring center can view the system status in real time, receive early warning signals, and remotely adjust parameters to achieve intelligent management of "unattended operation and maintenance + remote operation and maintenance".

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A method for the coordinated operation of a sewage pumping station, a regulating tank, and an intercepting sewer, applied to a coordinated control system, characterized in that: The described linkage control system includes a first interception main sewer (1), a second interception main sewer (2), a pump station inlet pipe (3), a sewage pump station (4), a storage tank (5), a first interception main sewer flowmeter (6), a second interception main sewer flowmeter (7), and a pump station inlet pipe flowmeter (8); the first interception main sewer (1) and the storage tank (5) are respectively connected to the sewage pump station (4), the second interception main sewer (2) is connected to the storage tank (5), and the first interception main sewer flowmeter (6) and the second interception main sewer flowmeter (7) are respectively installed on the first interception main sewer (1) and the second interception main sewer (2); This method includes the following steps: Step 1: Calculate the normal operating flow limit Q for the first intercepting sewer (1) and the second intercepting sewer (2). z1 Q z2 ; Calculate the out-of-standard operating conditions and the out-of-standard flow limit Q for the first intercepting sewer (1) and the second intercepting sewer (2). c1 Q c2 ; Step 2: Calculate the operating power P of the pumping station and regulating reservoir under full load conditions. b 、P t ; Step 3: Use the first interception main sewer flowmeter (1), the second interception main sewer flowmeter (2), and the pump station inlet pipe flowmeter (8) to monitor their respective flows Q1, Q2, and Q3 respectively; Step 4: Determine the working conditions, and the determination conditions are as follows: When Q3 ≤ min(Qz1 - Q1, Qz2 - Q2), it is a low-flow working condition; When Qz1 - Q1 < Q3 ≤ min(Qz1 - Q1 + Qz2 - Q2Q3, Qc1 - Q1), it is a medium-flow working condition; When min(Qz1 - Q1 + Qz2 - Q2Q3, Qc1 - Q1) < Q3 ≤ Qc1 - Q1 + Qc2 - Q2, it is a high-flow working condition; When Q3 > Qc1 - Q1 + Qc2 - Q2, it is an overflow working condition; Step 4: According to the different working conditions determined in Step 3, operate using the corresponding operating methods, where: Under low flow conditions: when P b ≤P t All sewage is pumped to the first intercepting sewer main via a pumping station; when P b >P t Wastewater first enters the regulating tank, and is then pumped out to the second intercepting sewer main by the regulating tank pump.

2. The method for coordinated operation of a sewage pumping station, regulating tank, and intercepting sewer as described in claim 1, characterized in that: Normal operating pipeline flow limit Q z The calculation formula is: Q z = ； ； The calculation formula for the flow limit value Qc of the over-standard operating condition is: Q c = ； Where, n is the Manning roughness coefficient, D is the pipe diameter, θ is the central angle, S is the hydraulic gradient, and α is the maximum design fullness stipulated in the "Outdoor Drainage Design Standard" (GB50014-2021).

3. The method for coordinated operation of a sewage pumping station, a regulating tank, and an intercepting sewer as described in claim 1, characterized in that: Calculate the operating power P of the pumping station and regulating reservoir under full load conditions. b 、P t The calculation formula is as follows: P b / P t= ; Where, Q is the rated flow, H is the rated head, and η is the pump efficiency.

4. The method for coordinated operation of a sewage pumping station, regulating tank, and intercepting sewer as described in claim 1, characterized in that: Under the medium-flow working condition: Sewage is lifted and discharged to the first interception main sewer by the pump station, and the excess sewage is temporarily stored in the storage tank; If it returns to the low-flow working condition before the storage tank is full, operate according to the low-flow working condition; if it remains in the medium-flow working condition after the storage tank is full, the storage tank pump starts to pump the sewage in the storage tank to the second interception main sewer.

5. The method for coordinated operation of a sewage pumping station, a regulating tank, and an intercepting sewer as described in claim 1, characterized in that: High flow rate operation: The pumping station and the regulating reservoir pump water simultaneously. The outflow rate Q of the pumping station and the regulating reservoir is adjusted by adjusting the pump frequency. b Q t When P b ≤P t Flow rate Q of the regulating reservoir t =Qc2-Q2, Pump station outlet flow rate Q b =Q3-Q t When P b >P t Pump station outflow rate Q b =Qc1-Q1, Flow rate of the regulating reservoir effluent Q t =Q3-Q b .

6. A method for the coordinated operation of a sewage pump station, a storage tank, and an interception main sewer according to claim 1, characterized in that: Overflow condition: The pumping station and regulating tank operate at full load in a manner that does not cause overflow of the intercepting sewer main, and the pumping station outlet flow rate Q b =Qc1-Q1, Flow rate of the regulating reservoir effluent Q t =Qc2-Q2; Flow rate Q exceeding the drainage capacity of the pumping station and regulating reservoir. y =Q1-Q b -Q t The water overflows through the overflow well in the pump station's inlet pipe.

7. The method for coordinated operation of a sewage pumping station, a regulating tank, and an intercepting sewer as described in claim 1, characterized in that: During the operation of each working condition, the remaining operation times Tb and Tt of the pump station and the storage tank are calculated in real time, and the calculation formulas are as follows: T b = V b / (Q3 - Q b ); T t = V t / (Q3- Q t ); Among them, V b V represents the remaining capacity of the pumping station. t The remaining capacity of the storage tank; when T b or T t When the value is less than the set threshold, the system issues a warning signal and automatically adjusts the operating parameters to extend the running time.

8. The method for coordinated operation of a sewage pumping station, a regulating tank, and an intercepting sewer as described in claim 1, characterized in that: The linkage control system further includes a water quality monitor (9), which is installed on the pump station inlet pipe (3); when it is detected that the sewage quality exceeds the preset standard, the system automatically switches to the enhanced treatment mode, and the specific operating method is: Under the low-flow working condition, all the sewage enters the storage tank for pretreatment, and after reaching the standard, it is lifted and discharged to the second interception main sewer by the storage tank pump; Under the medium-flow and high-flow working conditions, the exceeded-standard sewage is preferentially stored in the storage tank, and the pump station lifts and discharges the non-exceeded-standard sewage to the first interception main sewer; Under the overflow working condition, the exceeded-standard sewage is transported to the emergency treatment facility through a special pipeline to avoid direct overflow.

9. A method for coordinated operation of a sewage pumping station, a regulating tank, and an intercepting sewer as described in claim 1, characterized in that: The linkage control system also includes a weather forecast interface for acquiring rainfall forecast data for the next 24 hours. The system automatically adjusts its operating strategy based on the rainfall forecast values. When the predicted rainfall is less than the set threshold, the system will continue to operate under the current conditions. When the predicted rainfall reaches the set threshold, the system will activate the storage tank in advance to lower the water level of the storage tank to below the safety line and increase the storage capacity. When the predicted rainfall exceeds the set threshold, the system enters flood control mode, prioritizing urban flood safety and suspending sewage pumping if necessary to ensure rapid rainwater discharge.

10. A method for coordinated operation of a sewage pumping station, a regulating tank, and an intercepting sewer as described in claim 1, characterized in that: The linkage control system also includes a remote monitoring center, which is connected to each monitoring and control device via a wireless communication network. The remote monitoring is used for: It displays real-time system operating status, flow data, water level data, and water quality data. Receive early warning signals from the system and notify relevant personnel via SMS, email, etc. Remotely control the operating parameters of pumping stations and regulating reservoirs to achieve remote manual intervention; Store historical operational data, establish a database, and provide data support for system optimization and decision-making; Generate statistical reports and trend analysis charts to intuitively display the system's operating status.

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