Intelligent regulation and storage revetment

Abstract

The application relates to the field of environmental protection and water resource recycling, and discloses an intelligent regulation and storage revetment, which comprises a regulation and storage pool, a water inlet, a first water pump, a second water pump, a water level sensor and a water pump controller arranged in the revetment. A partition plate with a height lower than that of the regulation and storage pool is arranged in the regulation and storage pool, and the partition plate divides the regulation and storage pool into a first chamber and a second chamber which are isolated at the lower part and connected at the upper part. The water inlet guides water into the first chamber. The inlet of the first water pump is in the first chamber, and the outlet is connected with a sewage pipe network; the inlet of the second water pump is in the second chamber, and the outlet is arranged towards a river channel. The water pump controller is configured to: when detecting that the water level of the first chamber exceeds a first water level threshold, starting the first water pump to discharge the water in the first chamber towards the sewage pipe network; and when detecting that the water level of the second chamber exceeds a second water level threshold, starting the second water pump. The application effectively realizes the functions of non-point source pollution interception, reduction of the load of the sewage pipe network and rainwater and flood regulation and storage.

Description

Technical Field

[0001] This application relates to the fields of environmental protection and water resource recycling, and in particular to a rainwater interception, storage and discharge system set up on the edge of a riverbank, belonging to the field of urban drainage and non-point source pollution control technology. Background Technology

[0002] The descriptions in this section are intended only to provide background information for the implementation of this application and should not be construed as an admission or implication that they constitute prior art.

[0003] Bank protection is an important hydraulic engineering structure set up on the edge of rivers, lakes or coastlines. Its main traditional functions are to resist water erosion, prevent bank slope collapse, stabilize the embankment and ensure flood control safety.

[0004] With the acceleration of urbanization, the area of ​​impermeable surfaces (such as rooftops, roads, and parking lots) in urban areas has increased dramatically. This leads to the rapid accumulation of rainwater during rainfall, forming surface runoff. As this runoff flows across the urban surface, it washes away and carries away large amounts of pollutants, such as suspended solids, organic matter, heavy metals, grease, and garbage.

[0005] Runoff formed at the beginning of rainfall, known as "initial rainwater," typically carries the majority of the pollutant load. If this pollutant-laden rainwater is discharged directly into nearby waterways without treatment, it will lead to eutrophication, blackening and odor of the water body, and damage to the ecosystem. This phenomenon is called non-point source pollution or non-point source pollution, and it is one of the main causes of the deterioration of urban water quality.

[0006] Traditional revetment designs are simplistic, focusing solely on flood control and structural stability while completely neglecting their potential for controlling non-point source pollution and regulating stormwater. The revetment itself occupies valuable riverside space, but its internal structural space remains underutilized.

[0007] Furthermore, existing water storage and regulation facilities employ relatively simple operation and control strategies, lacking coordinated and intelligent management of water quality and quantity. For instance, how to effectively separate high-concentration initial rainwater from relatively clean later rainwater, and intelligently determine the runoff's destination (into the sewage network or into the river) based on the sewage network's capacity and the river's water level, are problems that current technologies have failed to effectively solve. Summary of the Invention

[0008] One objective of this application is to provide an intelligent regulating and storage bank protection system that can achieve intelligent and differentiated control of rainwater runoff, thereby simultaneously achieving multiple objectives such as flood control safety, non-point source pollution reduction, and pipeline load reduction within a limited urban space.

[0009] This application discloses an intelligent water storage and water conservation bank protection system, comprising:

[0010] A regulating reservoir is located inside the revetment; a partition is installed inside the regulating reservoir, the height of which is lower than the height of the regulating reservoir, and the partition divides the regulating reservoir into a first chamber and a second chamber that are isolated at the bottom but connected at the top.

[0011] The water inlet is used to guide water into the first chamber;

[0012] The first water pump has its inlet located in the first chamber and its outlet connected to the sewage pipe network.

[0013] The second water pump has its inlet located in the second chamber and its outlet discharged into the river.

[0014] A water level sensor, installed in the first and second chambers, is used to detect the water level height;

[0015] The water pump controller is configured to: when the water level in the first chamber is detected by the water level sensor to exceed a first water level threshold, start the first water pump to perform a first pumping operation to discharge water in the first chamber to the sewage pipe network, the first pumping operation lasting for at least a first duration; and when the water level in the second chamber is detected by the water level sensor to exceed a second water level threshold, start the second water pump to perform a second pumping operation.

[0016] By setting up a regulating reservoir inside the revetment, and using a partition lower than the height of the reservoir to divide it into a first chamber and a second chamber that are isolated at the bottom but connected at the top, combined with a first pump (discharging to the sewage network) and a second pump (discharging to the river) respectively located in the first and second chambers and controlled by water level sensors and controllers, and specific dual-threshold, staged pumping operations (the first pump is activated to discharge sewage when the first chamber exceeds the threshold, and the second pump is activated to discharge into the river when the second chamber exceeds the threshold), intelligent diversion and regulation of initial rainwater can be achieved. Specifically, the first chamber collects and prioritizes the treatment of initial rainwater with high pollutant concentrations (discharged into the sewage network via the first pump) (initial rainwater interception). When the water volume increases, the relatively clean later rainwater overflows through the partition to the second chamber, and is discharged into the river via the second pump when the water level is too high. This effectively reduces non-point source pollution, lowers the load on the sewage network, and simultaneously achieves the regulation and safe discharge of rainwater resources, improving the ecological and flood control functions of the revetment.

[0017] Furthermore, by setting a stop threshold (third water level threshold) lower than the start threshold (second water level threshold) for the second pumping operation of the second water pump, a start-stop hysteresis can be created. This effectively prevents the second water pump from frequently starting and stopping due to small fluctuations in the water level near the second water level threshold, thereby protecting the pump equipment, extending its service life, and ensuring the stability and energy efficiency of the drainage operation.

[0018] Furthermore, by specifically limiting the height of the baffle to 50%-80% of the height of the storage tank, and ensuring that this height is higher than the first water level threshold, the first pumping operation (treating initial contaminated water) can be triggered before the water level in the first chamber reaches the overflow height. This ensures that the initial rainwater is adequately intercepted and treated before overflowing into the second chamber. Simultaneously, the reasonable overflow height design balances the interception capacity of the first chamber and the storage capacity of the second chamber, optimizing the overall system's diversion and peak shaving effects.

[0019] Furthermore, by adopting a reinforced concrete box structure as the regulating reservoir and using a foundation support structure composed of reinforced concrete cast-in-place piles and grouted clay layers, a stable and reliable structural support and foundation can be provided for the regulating reservoir, ensuring the overall stability, durability and seepage prevention performance of the revetment and internal regulating reservoir under water pressure and soil pressure, which is particularly suitable for complex geological conditions such as riverbanks.

[0020] Furthermore, by adding bypass pipelines, switching valves, and flushing nozzles, and configuring a water pump controller to implement a self-cleaning mode, this mode utilizes a second water pump to draw water from the second chamber to backwash the bottom of the first chamber. Then, the first water pump is activated to discharge suspended sediment. This automatically removes sediment from the bottom of the first chamber (initial rainwater chamber) at low water levels, preventing clogging and water quality deterioration and volume loss caused by anaerobic fermentation. This reduces the maintenance costs and safety risks of manual dredging, ensuring the long-term effective volume and operational efficiency of the storage tank.

[0021] Furthermore, by setting an inspection port on the closed top of the storage tank and making the inspection port suitable for the insertion of a temporary water pump, rainwater stored in the storage tank (especially the relatively clean water in the second chamber) can be conveniently extracted by a temporary water pump when needed (such as during the dry season) for greening irrigation, road washing, and other reuse, realizing the recycling of water resources and improving the ecological and economic benefits of the system. At the same time, the closed top also ensures operational safety.

[0022] Furthermore, by adding river level sensors and enabling the pump controller to suspend or prohibit the second pump from draining water into the river based on the detected high river level (exceeding the flood warning threshold), the water stored in the second chamber can be actively maintained during river flooding. The hydrostatic pressure generated by this stored water can balance and resist the high flood pressure from the river side, significantly improving the overturning and sliding stability of the revetment structure, transforming the storage tank from a simple drainage facility into an active flood control structure.

[0023] Furthermore, by adding a water quality sensor and having the pump controller use water quality status (whether it is worse than a preset threshold) as a parallel condition for starting the first pump (discharging into the sewage network), real-time feedback control of water quality can be achieved. The first pump will only be activated to discharge into the sewage network when the water in the first chamber is confirmed to be "sewage." This achieves more precise pollution interception, avoids the accidental discharge of clean rainwater into the sewage network, and minimizes the load on the sewage treatment plant.

[0024] Furthermore, by upgrading the fixed water level thresholds (first, second, and third water level thresholds) to parameters that can be dynamically adjusted according to environmental and operational conditions, the calculation comprehensively considers multiple factors such as predicted rainfall, sewage network status, river backflow, water level change rate, and inflow. It also incorporates variation constraints and a safety backoff mechanism, enabling the bank protection's regulation and drainage strategies to shift from passive response to proactive prediction and intelligent coordination. For example, it can pre-discharge based on predicted rainfall, suppress discharge based on network pressure, or adjust discharge based on river backflow. This refined dynamic control strategy significantly optimizes the utilization efficiency of the storage capacity, achieving global optimization and coordinated operation of the entire "bank protection-pipeline-river" system. Attached Figure Description

[0025] Figure 1 This is a schematic cross-sectional view of an intelligent water storage and riverbank protection structure according to an embodiment of this application.

[0026] Figure 1 The reference numerals used in the accompanying drawings are as follows:

[0027] 1: Regulating reservoir;

[0028] 2: Partition;

[0029] 3: First chamber;

[0030] 4: Second chamber;

[0031] 5: Water inlet;

[0032] 6: First outlet;

[0033] 7: Second outlet;

[0034] 8: Water quality sensor;

[0035] 9: Precast reinforced concrete square piles;

[0036] 10: River channel;

[0037] 11: Knocking on the door;

[0038] 12: Lateral wall;

[0039] 13: Inspection port;

[0040] 14: Ground;

[0041] 15: First water pump;

[0042] 16: Second water pump;

[0043] 17: Guide rail;

[0044] 18: Reinforced concrete box structure;

[0045] 19: Top. Detailed Implementation

[0046] In the following description, many technical details are presented to help the reader better understand this application. However, those skilled in the art will understand that the technical solutions claimed in this application can be implemented even without these technical details and various variations and modifications based on the following embodiments.

[0047] To make the objectives, technical solutions, and advantages of this application clearer, the embodiments of this application will be described in further detail below with reference to the accompanying drawings.

[0048] One embodiment of this application relates to an intelligent water storage and conservation bank protection system, such as... Figure 1 As shown, the intelligent water storage and storage revetment includes:

[0049] Storage tank 1 is located inside the revetment; a partition 2 is installed inside storage tank 1, the height of partition 2 being lower than the height of storage tank 1, partition 2 dividing storage tank 1 into a first chamber 3 that is isolated at the bottom and connected at the top. Figure 1 (Right side of partition 2) and second chamber 4 Figure 1 (Left side of partition 2). Optionally, a filter screen can be installed on partition 2 to filter the water overflowing from the first chamber 3 to the second chamber 4, thereby further ensuring that the water in the second chamber 4 is relatively clean. The height of partition 2 can be 50%-80% of the height of the storage tank 1; when the water level in the first chamber 3 exceeds the height of partition 2, water automatically overflows from the first chamber 3 to the second chamber 4.

[0050] Inlet 5 is used to guide water into the first chamber 3.

[0051] The first water pump 15 has its inlet located in the first chamber 3 and its outlet connected to the sewage pipe network. Figure 1 The outlet pipe of the first water pump 15 is connected to the sewage pipe network through the first outlet 6. Figure 1 The main body of the first water pump 15 is also in the first chamber 3.

[0052] The second water pump 16 has its inlet located in the second chamber 4 and its outlet discharged into the river channel 10. Figure 1The outlet pipe of the second water pump 16 discharges water into the river channel 10 through the second outlet 7. Figure 1 The main body of the second water pump 16 is also located in the second chamber 4. A flap valve 11 is installed on the second outlet 7.

[0053] A water level sensor, installed in the first chamber 3 and the second chamber 4, is used to detect the water level height. The water level sensor can be an ultrasonic level gauge, a float level gauge, etc. The water level sensor mentioned here can be a set of water level sensors, respectively installed in the first chamber 3 and the second chamber 4, to measure the water levels of interest.

[0054] A pump controller is electrically connected to a first pump 15, a second pump 16, and a water level sensor. The pump controller may include a processor and a memory electrically connected to each other. The memory stores computer-executable instructions, which, when executed by the processor, enable the pump controller to: start the first pump 15 to perform a first pumping operation to discharge water from the first chamber 3 into the sewage network when the water level sensor detects that the water level in the first chamber 3 exceeds a first water level threshold (the height of the partition 2 is higher than the first water level threshold); and start the second pump 16 to perform a second pumping operation when the water level sensor detects that the water level in the second chamber 4 exceeds a second water level threshold. The first time period can be a preset fixed value. Optionally, subsequent first pumping operations can be prohibited for a second time period after the first pumping operation ends to avoid frequent starting of the first pump 15. Optionally, the pump controller can also be configured to shut down the second pump 16 to stop the second pumping operation when the water level in the second chamber 4 is detected by the water level sensor to be lower than a third water level threshold; wherein the third water level threshold is lower than the second water level threshold. This can prevent the second pump 16 from frequently starting and stopping under certain circumstances.

[0055] The aforementioned processor can be a Central Processing Unit (CPU), Graphics Processing Unit (GPU), Digital Signal Processor (DSP), Microcontroller Unit (MCU), Neural Processing Unit (NPU), Application Specific Integrated Circuit (ASIC), Field Programmable Gate Array (FPGA), PLC, or other programmable logic devices. The aforementioned memory can be read-only memory (ROM), random access memory (RAM), flash memory, hard disk, or solid-state drive, etc.

[0056] Optionally, in one embodiment, the storage tank 1 includes a reinforced concrete box structure 18, which is supported by a foundation support structure; the foundation support structure includes multiple precast reinforced concrete square piles 9; a grouted clay layer is provided between the precast reinforced concrete square piles 9. Both the reinforced concrete box structure 18 and the partition 2 can be cast using concrete of strength grade C30 or higher. Optionally, in another embodiment, the sidewalls of the storage tank 1 can be constructed using a composite structure of permeable concrete and HDPE geomembrane, achieving an optimal balance between structural strength and impermeability, which reduces costs and improves durability compared to pure C30 concrete.

[0057] Optionally, in one embodiment, such as Figure 1 As shown, the stormwater storage tank 1 has a closed top 19 with at least one access port 13. The access port 13 is adapted to allow a temporary pump to be inserted to extract water stored in the stormwater storage tank 1 for rainwater reuse. Rainwater reuse includes applications such as green space irrigation and road washing. A guide rail 17 extends into the stormwater storage tank 1 from the access port. The top 19 may be flush with the ground 14.

[0058] Optionally, in one embodiment, the intelligent water storage revetment further includes a water quality sensor 8, which is electrically connected to a pump controller. The pump controller is further configured to, when the water level sensor detects that the water level in the first chamber 3 exceeds a first water level threshold, and the water quality sensor 8 detects that the water quality is worse than a preset water quality threshold, start the first pump 15 to perform a first pumping operation to discharge water from the first chamber 3 into the sewage network; when the duration of the first pumping operation has exceeded the first duration and the water quality sensor 8 detects that the water quality is better than the preset water quality threshold, shut off the first pump 15 to stop the first pumping operation. The water quality sensor 8 can be a turbidity meter, a COD sensor, or a TSS (Total Suspended Solids) sensor, etc.

[0059] Optionally, in one embodiment, based on the previous embodiments, a smart flood control and water storage revetment with flood protection function is further provided. The outer wall 12 of the reinforced concrete box structure 18 of the water storage tank 1 (the side facing the river channel 10, which can be a reinforced concrete retaining wall) directly serves as the main water-facing structure of the revetment. The water storage tank itself is the revetment. This saves materials and construction steps, and achieves structural unity of the two major functions of "water storage" and "water storage".

[0060] In this embodiment, the intelligent regulating revetment also includes a river level sensor, which is installed in the river channel outside the revetment to monitor the river's water level in real time. The river level sensor can be a conventional water level detection device such as an ultrasonic level gauge, a pressure level gauge, or a radar level gauge. Its installation position is preferably on a fixed bracket on the water-facing side of the outer revetment to ensure accurate reflection of the actual water level changes in the river channel.

[0061] The pump controller communicates with the river level sensor, enabling it to receive real-time river level data. The pump controller's control program is pre-set with flood warning thresholds, determined based on local flood control standards and historical flood data; for example, these thresholds can be set to the local warning or guaranteed water level.

[0062] When the river level sensor detects that the river level exceeds the flood warning threshold, it indicates that the river is in a high flood level state. The external flood exerts significant lateral water pressure on the revetment structure, posing a risk of overturning and sliding. In this situation, the pump controller executes the following control strategy: if the second pump is running, its second pumping operation is immediately suspended; if the second pump has not yet started, its operation is prohibited even if the water level in the second chamber exceeds the second water level threshold. Through this control, a high water level is maintained in the second chamber. A check valve can be installed at the outlet of the second pump to prevent backflow when the river level is higher than the water level in the chamber.

[0063] The water stored in the second chamber exerts outward hydrostatic pressure on the revetment, acting on its inner surface. Under normal conditions, this hydrostatic pressure is an unfavorable load on the revetment structure. However, when the river is at a high flood level, the outer side of the revetment experiences significant lateral pressure from the river flood. At this time, the water stored in the second chamber and the hydrostatic pressure it generates transform into beneficial counterweight and reverse support force. Specifically, the weight of the stored water increases the self-weight of the revetment structure, improving its resistance to slippage; simultaneously, the outward pressure exerted by the stored water on the inner surface of the revetment partially offsets the inward pressure exerted by the river flood on the outer surface, thereby reducing the net lateral load on the revetment structure and significantly improving its overturning stability.

[0064] When the river level sensor detects that the river level has fallen below the flood warning threshold, it indicates that the flood threat has been eliminated. The pump controller then resumes normal control mode, allowing the second pump to start and operate normally according to the water level in the second chamber.

[0065] This embodiment achieves the dual function of the stormwater storage tank by adding a river level sensor and optimizing the control strategy: serving as a rainwater storage facility under normal conditions and as a stabilizing counterweight for the revetment during flood threats. This design makes full use of existing storage space without requiring additional counterweight structures, improving the safety of the revetment while maintaining the system's economy and practicality, and significantly enhancing the reliability of the revetment under extreme weather conditions.

[0066] Optionally, in one embodiment, a smart water storage revetment with self-cleaning function is implemented. This smart water storage revetment includes a water storage tank, an inlet, a first water pump, a second water pump, a water level sensor, a pump controller, and a self-cleaning system.

[0067] The regulating reservoir is located inside the revetment, measuring 10 meters in length, 5 meters in width, and 3 meters in height, with a total volume of 150 cubic meters. A partition, 2 meters high (67% of the reservoir's height), divides the reservoir into two chambers: a first chamber with a lower compartment isolated but an upper compartment connected. The first chamber has a volume of approximately 100 cubic meters, and the second chamber has a volume of approximately 50 cubic meters.

[0068] The inlet is located on the upper side wall of the first chamber to guide rainwater runoff into the first chamber during heavy rain.

[0069] The first pump is a sewage pump with a flow rate of 50 cubic meters per hour. Its inlet is located at the bottom of the first chamber, about 0.2 meters from the bottom of the pool, through a suction pipe. Its outlet is connected to the municipal sewage network through a sewage discharge pipe.

[0070] The second water pump is a clean water pump with a flow rate of 40 cubic meters per hour and a head of 15 meters. Its inlet is located at the bottom of the second chamber through a suction pipe, about 0.3 meters from the bottom of the pool, and its outlet is connected to the river discharge pipeline.

[0071] The water level sensor includes a first water level sensor installed in the first chamber and a second water level sensor installed in the second chamber. Both of them are ultrasonic level gauges and detect the water level height in their respective chambers in real time.

[0072] The self-cleaning system includes a bypass line, switching valves, and a flushing nozzle assembly.

[0073] The bypass pipeline is made of stainless steel. Its inlet is connected to the outlet of the second water pump through a tee joint, and its outlet is connected to the bottom of the first chamber through the pool wall.

[0074] The switching valve is an electrically operated three-way ball valve, installed at the outlet of the second water pump. This three-way valve has three channels: port A connects to the outlet of the second water pump, port B connects to the river discharge pipeline, and port C connects to the bypass pipeline. In normal drainage mode, the three-way valve connects channels A and B; in self-cleaning mode, the three-way valve switches to channel AC. The switching valve is controlled by the water pump controller via power.

[0075] Flushing Nozzle Assembly: Twelve high-pressure flushing nozzles are evenly arranged at the bottom of the first chamber in a 3x4 matrix, with a spacing of approximately 2 meters. Each nozzle is a fan-shaped jet nozzle with a 60-degree jet angle and high jet pressure. The twelve nozzles are connected to the outlet of the bypass pipeline through distribution pipes, forming a uniform bottom flushing coverage network.

[0076] The water pump controller can be a PLC controller, which integrates the control program. The relevant parameter settings are as follows.

[0077] Normal operating mode parameter settings: The first water level threshold is 1.5 meters, which is used to trigger the first water pump to start the first water pumping operation for a duration of 10 minutes; the second water level threshold is 2.2 meters, which is used to trigger the second water pump to start, i.e., exceeding the height of the baffle by 0.2 meters; the third water level threshold is 0.5 meters, which is used to stop the second water pump.

[0078] Self-cleaning mode parameter settings: Cleaning start threshold: The water level in the first chamber is below 0.3 meters and the water level in the second chamber is below 0.4 meters. Start delay: After the conditions are met, start after a 2-hour delay to ensure that the flushing time is 15 minutes after the rainstorm ends and the subsequent sewage discharge time is 20 minutes.

[0079] The normal pumping operation is as follows:

[0080] Initial state: Before the rainstorm, both the first and second chambers are empty or at low water levels.

[0081] Rainwater entry: When heavy rain occurs, rainwater runoff quickly enters the first chamber through the inlet.

[0082] First-stage drainage: When the first water level sensor detects that the water level in the first chamber has reached 1.5 meters, the pump controller starts the first water pump, which discharges the initial rainwater (containing a large amount of pollutants) in the first chamber into the sewage network at a flow rate of 50 cubic meters per hour. The first water pump automatically stops after running for 10 minutes.

[0083] Overflow regulation: If the rainfall is continuous and heavy, and the water level in the first chamber continues to rise and exceeds the height of the partition (2 meters), the water will begin to overflow from the first chamber to the second chamber, thus regulating the storage of cleaner rainwater in the later stages.

[0084] Second-stage pumping: When the second water level sensor detects that the water level in the second chamber exceeds 2.2 meters, the pump controller controls the switching valve to keep the A and B channels connected, and starts the second water pump to discharge clean rainwater from the second chamber into the river. When the water level in the second chamber drops below 0.5 meters, the second water pump automatically stops.

[0085] The self-cleaning process is as follows:

[0086] After several heavy rain events, a certain amount of silt and suspended particulate matter, about several centimeters thick, will accumulate at the bottom of the first chamber. The system will automatically initiate a cleaning and maintenance process.

[0087] After the rainstorm ends, the water pump controller continuously monitors the water levels in both chambers. When the water level in the first chamber is below 0.3 meters and the water level in the second chamber is below 0.4 meters for more than 2 hours, the controller determines that the rainstorm event has ended and the system has entered a low-water-level stable state, and automatically starts the self-cleaning program.

[0088] The controller issues a command, and the electric three-way valve switches from channel AB to channel AC. At this time, the outlet of the second water pump changes from the original river discharge to connection to the bypass pipeline.

[0089] High-pressure flushing then begins. The controller activates the second water pump to remove residual water from the second chamber or replenish clean water through the inlet. Water is delivered at a flow rate of 40 cubic meters per hour through a bypass pipe to the flushing nozzle assembly at the bottom of the first chamber. Twelve nozzles simultaneously spray fan-shaped jets of water at high pressure, creating a high-speed water jet that washes over the bottom of the first chamber. The high-pressure water jet impacts the sludge layer, causing deposited sludge, sand, and other solid particles to resuspend and re-enter the water, forming a high-concentration muddy water. This process lasts approximately 15 minutes, during which the water level in the first chamber gradually rises.

[0090] The sewage discharge phase then begins. Once the required flushing time has elapsed, the controller immediately shuts off the second water pump. Simultaneously, the controller restores the switching valve to the AB channel connection state. After a 5-second delay, the controller starts the first water pump. The first pump rapidly discharges the highly concentrated muddy water containing a large amount of suspended sediment from the first chamber into the sewage network at a flow rate of 50 cubic meters per hour. The sewage discharge operation continues for 20 minutes, ensuring that the first chamber is returned to a near-empty state and the bottom is thoroughly flushed.

[0091] After the sewage discharge is completed, the first water pump automatically stops, and the system returns to its initial standby state, waiting for the next rainfall event.

[0092] This embodiment achieves the following technical effects by adding a self-cleaning system:

[0093] It achieves automatic dredging capability, eliminating the need for manual entry into the storage tank for dredging operations, completely avoiding the safety risks of confined space operations, and eliminating potential dangers such as hydrogen sulfide poisoning and oxygen deficiency asphyxiation. Furthermore,

[0094] Maintenance costs are significantly reduced. Traditional water storage tanks require manual dredging once a quarter, including pumping, manual dredging, and waste transportation and disposal. With this embodiment, the frequency of manual dredging can be reduced to once a year or less, resulting in a substantial decrease in annual maintenance costs.

[0095] Furthermore, regular automatic cleaning effectively prevents the long-term accumulation of silt. The self-cleaning system uses relatively clean water stored in the second chamber for flushing; this water is rainwater collected by the system, eliminating the need for additional tap water. Compared to manual dredging, which requires a large amount of flushing water, this system conserves water resources.

[0096] Furthermore, the entire cleaning process requires no manual intervention. The controller automatically determines whether the rainstorm has ended, when to start cleaning, and how to control the coordinated operation of valves and water pumps based on the water level. This achieves truly unattended intelligent management, making it particularly suitable for remote or understaffed bank protection facilities.

[0097] Optionally, in one embodiment, to improve the system's adaptability to heavy rain and pipeline network conditions, the pump controller is equipped with a dynamic threshold calculation module, used to calculate the first water level threshold in real time based on environmental and operating parameters. Second water level threshold and the third water level threshold .

[0098] First water level threshold Second water level threshold and the third water level threshold The calculation method is as follows:

[0099]

[0100] in:

[0101] , These are the initial settings for the first and second water level thresholds, which are baseline values ​​determined after the system commissioning is completed based on factors such as the size of the storage tank and the capacity of the pipeline network.

[0102] Indicates the variable Limited to the range The clamping function inside, when Time return ,when Time return ,when Time return It is used to ensure that the threshold does not exceed the safety boundary;

[0103] For the current moment The predicted rainfall (unit: mm) for the future forecast period can be obtained through meteorological department interfaces or local weather stations. , These are correction functions that adjust the first and second water level thresholds based on the predicted rainfall, respectively. When the predicted rainfall increases... , This lowers the threshold to enable advance sorting;

[0104] This is a back pressure or availability index of the sewage pipe network at the current moment, reflecting the load-bearing status of the pipe network; This is a pipeline constraint correction function; when the pipeline is under stress (back pressure increases)... ,make Improvements were made to suppress discharges into the sewage network;

[0105] This refers to the current backwater level or tidal level of the river channel; This is a backwater correction function, applied when the river level rises. ,make To prevent river water from flowing back into the river;

[0106] , These represent the water level change rates (units: m / s or m / min) of the first and second chambers, respectively. Positive values ​​indicate rising water levels, while negative values ​​indicate falling water levels. , This is a correction function for early action; when the water level rises rapidly, it takes a negative value to initiate pumping earlier.

[0107] Estimated inflow rate (unit: m³) calculated based on water level changes 3 ( / h), reflecting the current amount of water entering the storage tank; , This is an inflow correction function that takes a negative value to lower the threshold when the inflow increases.

[0108] , This is the safe lower / upper limit of the first water level threshold (engineering preset hard boundary). Not lower than the equipment's minimum safe water level and check valve requirements; Not exceeding the maximum permissible operating water level (e.g., a safety margin below the overflow / maintenance port). Controller to Apply the following constraints:

[0109]

[0110] , This is the safe lower / upper limit of the second water level threshold. Not lower than the backflow prevention safety line; Not higher than the structural and flood discharge permit water level. The controller... Apply the following constraints:

[0111]

[0112] The third water level threshold The calculation formula is:

[0113]

[0114]

[0115] in, This is the initial start-stop hysteresis. and These are dynamic correction terms based on the inflow rate and water level change rate, ensuring that the hysteresis is appropriately increased when the flow rate is high or the water level rises rapidly to prevent frequent start-stop cycles; and a clamping function is used to ensure... Within a safe range . , For start-stop hysteresis The lower / upper bound of safety satisfies .

[0116] To avoid threshold jitter, the controller also sets a constraint on the maximum change in a single cycle:

[0117]

[0118] That is, within any control period, the change in any water level threshold shall not exceed the corresponding limit. . This is the control / sampling period (time step), which is the time interval between two consecutive threshold calculations or control decisions. It can be adaptively adjusted according to rainfall intensity / inflow (e.g., conventional). (Take 10–60 seconds, shorten to 1–10 seconds for heavy rainfall conditions). This represents the maximum allowable change in the i-th water level threshold within a single control cycle.

[0119] When the water level sensor detects the water level in the first chamber Exceeding the first threshold calculated in the current calculation If the water is not in the locked period, the controller starts the first water pump 15 to discharge water into the sewage pipe network; the pumping continues for at least the first duration and then stops, entering the locked period. The lockout period can be dynamically calculated based on rainfall forecasts and pipeline availability.

[0120]

[0121] When rainfall intensity increases, the lockout time is shortened for a faster response; when pipeline pressure is high, the lockout time is extended to avoid overload.

[0122] When the water level in the second chamber Exceeding the second threshold At that time, the controller starts the second water pump 16 to discharge water into the river; during the pumping process, the controller adjusts according to... , and Dynamically adjust the pump speed when the water level drops to the third threshold. And the pumping will stop when the descent rate is lower than the preset value.

[0123] If any sensor signal is abnormal or external data is lost, the controller automatically reverts to a fixed threshold mode, using a safety setting. , Perform control and issue maintenance prompts. Ensure system operation. The security relationship always holds, and all threshold changes are constrained by the defined upper and lower bounds.

[0124] This embodiment changes the water level threshold from a fixed constant to a multi-parameter adaptive function, enabling the system to automatically adjust the pumping strategy based on environmental conditions such as rainfall forecasts, pipeline capacity, and river backflow. This achieves a synergistic effect of "pre-drainage, prevention of backflow, and energy-saving control," significantly improving the intelligence and safety of the water storage and bank protection system.

[0125] It should be noted that in this application, relational terms such as "first" and "second" are used merely 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. In this application, if it refers to performing an action according to an element, it means performing the action at least according to that element, including two cases: performing the action only according to that element, and performing the action according to that element and other elements. Expressions such as "multiple," "repeatedly," and "various" include two, two times, two kinds, and more than two, more than two times, and more than two kinds.

[0126] This specification includes combinations of various embodiments described herein. Individual references to embodiments (e.g., “one embodiment”, “some embodiments”, or “preferred embodiments”) do not necessarily refer to the same embodiment; however, these embodiments are not mutually exclusive unless indicated to be mutually exclusive or are readily apparent to those skilled in the art. It should be noted that the word “or” is used in a non-exclusive sense throughout this specification unless the context explicitly indicates or requires it.

[0127] All references to this application are considered to be incorporated in their entirety into the disclosure of this application so that they can serve as a basis for modifications if necessary. Furthermore, it should be understood that after reading the contents of this application, those skilled in the art can make various alterations or modifications to this application, and these equivalent forms also fall within the scope of protection claimed in this application.

Claims

1. A smart water storage and bank protection system, characterized in that, include: A regulating reservoir is located inside the revetment; a partition is installed inside the regulating reservoir, the height of which is lower than the height of the regulating reservoir, and the partition divides the regulating reservoir into a first chamber and a second chamber that are isolated at the bottom but connected at the top. The water inlet is used to guide water into the first chamber; The first water pump has its inlet located in the first chamber and its outlet connected to the sewage pipe network. The second water pump has its inlet located in the second chamber and its outlet discharged into the river. A water level sensor, installed in the first and second chambers, is used to detect the water level height; The water pump controller is configured to: when the water level in the first chamber is detected by the water level sensor to exceed a first water level threshold, start the first water pump to perform a first pumping operation to discharge water in the first chamber to the sewage pipe network, the first pumping operation lasting for at least a preset first duration; and when the water level in the second chamber is detected by the water level sensor to exceed a second water level threshold, start the second water pump to perform a second pumping operation. A bypass pipeline has its inlet connected to the outlet of the second water pump and its outlet connected to the bottom of the first chamber; A switching valve is installed on the bypass pipeline and / or the river discharge pipeline of the second water pump to switch the outlet direction of the second water pump; A flushing nozzle is located at the bottom of the first chamber and is connected to the bypass pipeline; The water pump controller is also configured to perform a self-cleaning mode, including: When the water levels in both the first chamber and the second chamber are detected to be below the preset cleaning start threshold, the switching valve is controlled to connect the outlet of the second water pump to the bypass pipeline, and the second water pump is started to spray the water in the second chamber through the flushing nozzle to the bottom of the first chamber to suspend the sediment, and the flushing continues for a preset duration. After the flushing time is completed, the switching valve is restored to its original state, and the first water pump is started to discharge the water containing suspended sediments into the sewage pipe network.

2. The intelligent water storage and bank protection system as described in claim 1, characterized in that, The water pump controller is further configured to shut down the second water pump to stop the second pumping operation when the water level in the second chamber is detected by the water level sensor to be lower than the third water level threshold; wherein the third water level threshold is lower than the second water level threshold.

3. The intelligent water storage and bank protection system as described in claim 1, characterized in that, The height of the baffle is 50%-80% of the height of the storage tank; when the water level in the first chamber exceeds the height of the baffle, water automatically overflows from the first chamber to the second chamber; the height of the baffle is higher than the first water level threshold.

4. The intelligent water storage and bank protection system as described in claim 1, characterized in that, The regulating reservoir includes a reinforced concrete box structure, which is supported by a foundation support structure; the foundation support structure includes multiple reinforced concrete cast-in-place piles; and a grouted clay layer is provided between the reinforced concrete cast-in-place piles.

5. The intelligent water storage and bank protection system as described in claim 4, characterized in that, Both the reinforced concrete box structure and the partition are made of concrete with a strength grade of C30 or higher.

6. The intelligent water storage and bank protection system as described in claim 1, characterized in that, The storage tank has a closed top with at least one access port; the access port is adapted to insert a temporary water pump to extract water stored in the storage tank for rainwater reuse.

7. The intelligent water storage and bank protection system as described in claim 1, characterized in that, Also includes: River water level sensors are installed in the river channel outside the revetment to detect the water level height in the river channel; The water pump controller is also configured to: When the river water level sensor detects that the river water level exceeds the preset flood warning threshold, the second pumping operation of the second water pump is suspended or the second water pump is prohibited from being started, so as to maintain the water storage in the second chamber. When the river is at a high flood level, the hydrostatic pressure generated by the water stored in the second chamber on the revetment is used to resist the flood pressure on the river side, thereby improving the revetment's anti-overturning stability and anti-sliding stability.

8. The intelligent water storage and bank protection system as described in any one of claims 1-7, characterized in that, It also includes water quality sensors; The water pump controller is electrically connected to the water quality sensor and is used to start the first water pump to perform a first pumping operation to discharge water in the first chamber to the sewage pipe network when the water level sensor detects that the water level in the first chamber exceeds the first water level threshold and the water quality sensor detects that the water quality is worse than the preset water quality threshold; when the duration of the first pumping operation has exceeded the first duration and the water quality sensor detects that the water quality is better than the preset water quality threshold, the first water pump is turned off to stop the first pumping operation.

9. The intelligent water storage and bank protection system as described in claim 2, characterized in that, The water pump controller sets the first water level threshold. Second water level threshold With the third water level threshold The parameters are set to be dynamically adjusted according to the environment and operating conditions, and their calculation relationship is as follows: in: , These are the initial settings for the first and second water level thresholds, respectively; Indicates will Limited to the range Inside; To predict rainfall, , This is a function that adjusts the threshold based on the predicted rainfall; when the predicted rainfall increases... , This lowers the threshold to allow for earlier pre-sorting; This refers to the back pressure or availability index of the sewage pipe network. This is a pipeline constraint correction function, used when the pipeline is under pressure. ,promote Suppress emissions; Information on river backwater or tidal levels. This is a backwater correction function, applied when the river level rises. ,promote To prevent backflow; , The water level change rate is the rate of change between the first and second chambers. , This is a correction function for advance actions; To estimate the inflow rate, , This is an inflow rate correction function that lowers the threshold as the inflow rate increases. , It is the safe lower and upper limits of the first water level threshold. , These are the safe lower and upper limits of the second water level threshold; Dynamic start-stop hysteresis The calculation is as follows: in This is the initial hysteresis. and It is a function adjusted by the inflow rate and the rate of change of water level. , It is start-stop hysteresis The lower and upper bounds of safety; Furthermore, the pump controller applies a single-cycle maximum change constraint to the change amount each time it calculates and updates the threshold: To prevent frequent fluctuations in the threshold, ensure The security relationship always holds, among which The time interval between two consecutive threshold calculations. This represents the maximum allowable change in the i-th water level threshold within a single time interval; When external data or sensor signals are abnormal, the controller automatically reverts to a preset fixed threshold. Implement security controls.

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