A linkage type disinfection device based on wind-solar complementary power supply

Abstract

The application belongs to the technical field of water disinfection, and specifically discloses a linkage type disinfection device based on wind-solar complementary power supply, which comprises a reaction tank, a monitoring module, a control module and a wind-solar complementary power supply module, the monitoring module is used for monitoring the residual chlorine value of water in real time; the control module selects a disinfection strategy according to the threshold interval to which the residual chlorine value belongs, controls the reaction tank to work based on the disinfection strategy, and estimates the total power demand of the next disinfection cycle; the wind-solar complementary power supply module receives the demand, dynamically selects a wind-solar direct supply mode or a wind-solar battery parallel supply mode to supply power to the system. The application realizes stable operation of the disinfection device based on wind-solar complementary power supply, ensures accurate and stable disinfection effect through matching control of residual chlorine feedback and solid medicament slow-release characteristics, and efficiently utilizes fluctuating renewable energy through intelligent linkage between the load and the power supply side, thereby improving the overall energy efficiency and reliability of the off-grid system.

Description

Technical Field

[0001] This invention belongs to the field of water disinfection technology, and specifically relates to a linkage disinfection device based on wind-solar hybrid power supply. Background Technology

[0002] Chlorine, as a highly efficient and safe disinfectant, has been widely used in the disinfection of drinking water, swimming pool water, and various industrial and domestic water bodies. Its application methods mainly include on-site preparation of chlorine solution and direct addition of solid slow-release agents (such as chlorine dioxide effervescent tablets). In scenarios with stable municipal power supply, automated dosing equipment employing online residual chlorine monitoring and feedback control technology can achieve a certain degree of automation. However, in vast remote areas or field operations where reliable mains power is unavailable or power supply is difficult to guarantee, existing technical solutions have the following problems: Traditional automatic dosing equipment typically includes a water pump, a mixer, multiple solenoid valves, and a continuously operating monitoring and control unit. The overall system power consumption is relatively high, and its design and operation rely on mains power, making it unusable in areas without grid coverage. Using low-power wind-solar hybrid renewable energy sources for power supply suffers from high operating power consumption leading to insufficient power supply capacity; while using large-scale wind-solar hybrid equipment presents economic challenges.

[0003] Existing mature control strategies are mainly designed for liquid disinfectants, which are incompatible with the characteristics of solid slow-release agents. Furthermore, liquid agents themselves have poor applicability in specific scenarios. Specifically, liquid disinfectants such as sodium hypochlorite are highly corrosive, requiring strict safety regulations during procurement, storage, transportation, and application. This necessitates a high degree of expertise from operators and maintenance personnel, and poses significant safety risks under rudimentary facilities. In the current state of the industry for disinfecting water bodies in mountainous areas, workers lack safety awareness and the necessary equipment for applying finished sodium hypochlorite. Summary of the Invention

[0004] The purpose of this invention is to overcome the defects in the existing technology and provide a linkage-type disinfection device based on wind-solar hybrid power supply.

[0005] This invention provides a wind-solar hybrid power supply-linked disinfection device, comprising: A reaction vessel is used to dissolve solid disinfectants to prepare disinfectant solutions. The monitoring module is used to monitor the residual chlorine level of the disinfected water in real time. The control module, connected to the monitoring module, selects the target concentration and target dosage of the disinfectant solution as the current disinfection strategy based on the different threshold ranges to which the residual chlorine value belongs; the control module controls the operating parameters of the reaction vessel based on the current disinfection strategy; The wind-solar hybrid power supply module is electrically connected to the reaction tank, the monitoring module and the control module respectively, and supplies power to the reaction tank, the monitoring module and the control module; The control module estimates the total power demand required to execute the next disinfection cycle based on the current disinfection strategy and the associated expected equipment actions, and sends the estimate to the wind-solar hybrid power supply module. The wind-solar hybrid power supply module dynamically selects the power supply mode based on the total power demand and the current parameters of the wind-solar hybrid power supply module. The power supply mode includes a direct wind-solar supply mode and a parallel wind-solar battery supply mode.

[0006] A further embodiment is that the reaction vessel includes a vessel body, a cover plate is provided on the top of the vessel body, a water inlet is provided on one side of the vessel body, a water inlet solenoid valve is provided at the water inlet, and a drain outlet is provided at the bottom of the vessel body, a drain solenoid valve is provided at the drain outlet. A stirring motor is installed in the middle of the cover plate, and a stirring rod is connected to the output end of the stirring motor. The stirring rod extends into the inside of the tank. A medicine inlet is also provided on the cover plate, and a medicine inlet pipe is connected to the bottom of the medicine inlet. A medicine basket is provided on the cover plate, and the medicine basket is fixedly connected to a vertical plate located on one side of the cover plate. A fixing plate is provided on the top of the cover plate, and a bottom plate is provided on the fixing plate. A sliding plate is provided on the bottom plate, and a first through hole is provided on the sliding plate. The first through hole and the bottom plate form a receiving cavity. The first through hole corresponds to the bottom outlet of the medicine basket so that the solid disinfectant in the medicine basket falls into the receiving cavity. A cylinder is provided at the end of the sliding plate, and the sliding plate slides along the bottom plate under the action of the cylinder. Both the fixing plate and the base plate have overlapping second through holes, the position of which coincides with the inlet; the cylinder slides the receiving cavity to the second through hole during a preset stroke, so that the solid disinfectant inside the receiving cavity falls into the inlet; The inlet solenoid valve, the outlet solenoid valve, the stirring motor, and the cylinder are all connected to the control module.

[0007] A further embodiment is that a guide rail is provided on the side of the base plate near the cylinder, and a slider that is slidably connected to the guide rail is provided at the bottom of the sliding plate. The slider and the guide rail form a friction pair, and the sliding plate and the base plate form a friction pair. A precision scraper is symmetrically arranged on the inner wall of the bottom of the medicine basket. The lower surface of the precision scraper and the upper surface of the sliding plate form a friction pair so that when the cylinder pushes the sliding plate to slide, the solid disinfectant overflowing from the receiving cavity is scraped off, so as to ensure that the amount of medicine delivered by each cylinder action is the same, and to prevent the solid disinfectant from sliding out of the medicine basket when the sliding plate is reset.

[0008] A further embodiment is that the control module includes: The deviation decision unit is used to determine the difference between the real-time residual chlorine value and the preset target value. If the difference is greater than or equal to a first deviation threshold, it outputs the number of cylinder actions that are mapped to the difference in a first manner. Water intake duration Dosage duration If the difference is less than the first deviation threshold, then the number of cylinder actions that has a second mapping relationship with the difference is output. Water intake duration Dosage duration ; The state compensation unit receives the temperature parameters of the reaction vessel and the mass ratio of solid disinfectant to water, and generates a dissolution efficiency parameter based on the temperature parameters and the mass ratio; it performs cumulative calculation on the dissolution efficiency parameter within a preset time interval to obtain a cumulative stirring requirement value, and sets a stirring intensity coefficient based on the cumulative stirring requirement value, and uses the product of the cumulative stirring requirement value and the stirring intensity coefficient as the output stirring duration; the dissolution efficiency parameter increases as the temperature parameter decreases and as the mass ratio increases; The instruction generation unit is used to receive the output values ​​of the deviation decision unit and the state compensation unit, and generate a first control instruction for controlling the reaction vessel.

[0009] A further approach involves setting the stirring intensity coefficient as follows: setting at least two cumulative stirring demand thresholds; when the cumulative stirring demand value is lower than a first cumulative demand threshold, the stirring intensity coefficient is set to a first fixed value. When the cumulative stirring demand value is between two cumulative stirring demand thresholds, the stirring intensity coefficient is obtained through linear interpolation. and Calculated between, where > When the cumulative stirring demand value exceeds the second cumulative demand threshold, the stirring intensity coefficient takes a second fixed value. .

[0010] A further embodiment includes a hybrid feedback evaluation unit connected to the instruction generation unit. Based on the parameters of cylinder action count, water inlet duration, dosing duration, and stirring duration included in the first control instruction, the hybrid feedback evaluation unit generates a dosing intensity level characterizing the intensity of this dosing operation. The dosing intensity level includes three levels: strong, medium, and weak. The hybrid feedback evaluation unit is also connected to the monitoring module. After the disinfectant solution is added, the monitoring module is controlled to perform the next sampling and monitoring of the residual chlorine value after a delayed feedback delay time. The feedback delay time is determined based on the dosing intensity level.

[0011] A further embodiment is that the control module controls the opening duration of the inlet solenoid valve as the inlet duration and controls the opening duration of the drain solenoid valve as the dosing duration.

[0012] A further embodiment is that the wind-solar hybrid power supply module includes: Parallel solar panels and wind turbines; Battery pack; The first power converter is connected to the output terminals of the solar panel and the wind turbine, respectively, to achieve regulated output; The second power converter is connected to the battery pack and is used to realize charge and discharge control and voltage matching; The output terminals of the first power converter and the second power converter are both connected to a DC bus, which supplies power to the reaction vessel, the monitoring module and the control module. In the direct wind-solar power supply mode, the second power converter is in a shutdown or charging state, and all the load power is supplied by the first power converter; in the parallel wind-solar battery power supply mode, the second power converter is in a discharging state, and the first power converter and the second power converter simultaneously output current to the DC bus and combine them on the DC bus to jointly supply the load.

[0013] A further embodiment is that the wind-solar hybrid power supply module also includes a power generation-side prediction model, an energy compensation unit, and an execution unit; Power generation prediction model: Taking real-time collected wind speed and illuminance as input, outputs the natural power generation of solar panels and wind turbines within a preset time interval; The preset time interval is the sum of the parameters of water inlet duration, dosing duration and stirring duration included in the first control command; The power compensation unit is used to obtain the previous load power with the same first control command, and compare the load power consumption with the natural power generation to obtain the power compensation amount; The execution unit generates a second control command for the second power converter based on the power compensation amount and outputs it to the second power converter to control the discharge power of the second power converter in the parallel supply mode of wind and solar batteries.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention sets a disinfection strategy based on real-time monitored residual chlorine levels and controls the operating parameters of the reaction tank accordingly, achieving closed-loop feedback and precise on-demand control of the disinfection dosing process. By mapping continuous residual chlorine monitoring values ​​to discrete threshold ranges, the control system can translate complex water quality conditions into clear operational instructions. This ensures a high degree of matching between the disinfection response and the actual pollution load or disinfectant consumption level of the water body, avoiding energy and reagent waste from the source of control logic. Because the control is based on objective residual chlorine indicators rather than fixed time or dosage, the system can adapt to changes in water flow or water quality, significantly reducing unnecessary equipment operation frequency and duration while ensuring disinfection effectiveness, thereby directly reducing the overall energy consumption of the system.

[0015] The wind-solar hybrid power supply module of this invention includes two dynamically selectable power supply modes: direct wind-solar supply and parallel wind-solar-battery supply. It can select the mode based on the total power demand for the next cycle estimated by the control module and its own current parameters. According to the load's power demand, combined with real-time power generation capacity and battery state of charge, it dynamically determines the optimal power supply path. For example, when sunlight and wind are abundant, the system prioritizes the direct wind-solar supply mode, directly supplying renewable energy to the load while storing surplus energy. This ensures that even under intermittent fluctuations in wind and solar power generation, the load side can obtain a continuous and stable power supply, fundamentally solving the problem of traditional off-grid equipment downtime due to unstable power supply.

[0016] The reaction vessel of this invention employs a reagent basket containing a precision scraper and a sliding plate mechanism with a receiving cavity, and is driven by a cylinder for quantitative drug delivery. The state compensation unit in the control module dynamically determines the stirring time based on the dissolution efficiency parameter generated by the reaction vessel temperature and the reagent mass ratio, solving the problems of dosage control accuracy and dissolution efficiency in solid disinfectant addition, ensuring the consistency of disinfection effect and control stability. The precision scraper of this invention, when the cylinder pushes the sliding plate in reciprocating motion, can strictly scrape off excess reagent exceeding the receiving cavity and prevent the reagent from slipping during resetting. This ensures a highly consistent volume of solid reagent delivered in each cylinder stroke, laying the foundation for subsequent concentration ratio control.

[0017] The generation-side prediction model of this invention processes real-time environmental sensor data using an algorithm to proactively estimate the natural power generation curve for a future load cycle. The power compensation unit compares this predicted power with stored historical load power benchmarks corresponding to the same control commands in real time to calculate the precise power shortfall or surplus, i.e., the power compensation amount. The execution unit then generates precise control commands for the second power converter based on this compensation amount, dynamically adjusting the battery discharge current and power. When the prediction indicates insufficient wind and solar power generation, the battery is instructed to discharge earlier and as needed; when the prediction indicates surplus power generation, battery discharge is reduced or stopped and the battery enters a charging state. This achieves smooth adjustment of the load bus voltage and power level, ensuring stable output of the entire power supply system.

[0018] This invention analyzes the current disinfection strategy into specific equipment actions, including the number of cylinder actions, the opening duration of each solenoid valve, and the running time of the stirring motor. Based on these equipment actions, the control module accurately calculates the total electrical energy consumed to complete the next full disinfection cycle. This achieves proactive planning and scheduling of electrical energy. The wind-solar hybrid power supply module, combined with its own energy status, pre-calculates the optimal power distribution scheme, improving the energy efficiency, stability, and equipment lifespan of the entire off-grid energy system. Attached Figure Description

[0019] The following figures are for illustrative purposes only and are not intended to limit the scope of the invention, wherein: Figure 1 : Block diagram of the module connection principle of this invention; Figure 2 Schematic diagram of the reaction vessel structure; Figure 3 : Schematic diagram of the state of the medicine basket under load; Figure 4 Block diagram of wind-solar hybrid power supply module; In the diagram: 1. Tank; 2. Inlet; 3. Inlet solenoid valve; 4. Outlet; 5. Outlet solenoid valve; 6. Stirring motor; 7. Stirring rod; 8. Inlet; 9. Inlet pipe; 10. Cover plate; 11. Vertical plate; 12. Medicine basket; 13. Sliding plate; 14. First through hole; 15. Guide rail; 16. Slider; 17. Base plate; 18. Fixing plate; 19. Second through hole; 20. Cylinder; 21. Monitoring module; 22. Control module; 23. Wind-solar hybrid power supply module; 24. Deviation decision unit; 25. State compensation unit; 26. Command generation unit; 27. Hybrid feedback evaluation unit; 28. Solar panel; 29. ​​Wind turbine; 30. Battery pack; 31. First power converter; 32. Second power converter; 33. DC bus; 34. Generation-side prediction model; 35. Power compensation unit; 36. Execution unit. Detailed Implementation

[0020] To make the objectives, technical solutions, design methods, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the invention.

[0021] This invention provides a combined disinfection device based on wind-solar hybrid power supply, such as... Figure 1 As shown, the system includes a reaction tank, a monitoring module 21, a control module 22, and a wind-solar hybrid power supply module 23. The reaction tank is used to dissolve solid disinfectant to prepare a disinfection solution. The monitoring module 21 monitors the residual chlorine level of the water being disinfected in real time. The control module 22 is connected to the monitoring module 21 and, based on different threshold ranges of the residual chlorine level, selects the target concentration and target dosage of the disinfection solution as the current disinfection strategy, and controls the operating parameters of the reaction tank based on the current disinfection strategy. The wind-solar hybrid power supply module 23 is electrically connected to the reaction tank, monitoring module 21, and control module 22, respectively, to supply power to these components. The control module 22 executes the disinfection strategy... Previously, the system estimated the total power demand required for the next disinfection cycle based on the expected equipment actions associated with the current disinfection strategy, and sent this demand to the wind-solar hybrid power supply module 23. The wind-solar hybrid power supply module 23 then dynamically and intelligently selected the power supply mode based on the received power demand, its current wind and solar power generation capacity, and the battery storage status. Specifically, when wind and solar power generation was sufficient, it adopted a direct wind-solar supply mode, prioritizing the use of real-time renewable energy; when power generation was insufficient, it switched to a wind-solar-battery parallel supply mode, with the battery supplementing discharge to jointly ensure stable load operation. This achieved a synergy between predictable load energy consumption and precise power supply scheduling, ensuring stable and efficient operation of the device in an off-grid environment. In this embodiment, the control module 22 internally preset multiple residual chlorine thresholds, dividing continuous residual chlorine monitoring values ​​into different intervals. Each interval corresponds to a different target concentration and target dosage. For example, setting the target residual chlorine value to 0.3-0.5 mg / L, the residual chlorine value can be divided into three intervals: when the monitoring value is below 0.3 mg / L, the target concentration is... The target amount to be added is To rapidly increase residual chlorine; when the monitored value is between 0.3 and 0.5 mg / L, the target concentration is... The target amount to be added is Make minor adjustments; when the monitored value is higher than 0.5 mg / L, stop adding the drug.

[0022] like Figure 2 and Figure 3As shown, the reaction vessel includes a tank body 1 and a solid reagent metering dosing mechanism located on the top of the tank body 1; a water inlet 2 with a water inlet solenoid valve 3 is provided on one side of the tank body 1, and a drain outlet 4 with a drain outlet solenoid valve 5 is provided at the bottom; a cover plate 10 is provided on the top of the tank body 1, and a stirring motor 6 is installed in the middle of the cover plate 10, the output end of which is connected to a stirring rod 7 extending into the tank body 1; a drug inlet 8 and a connected drug inlet pipe 9 are also provided on the cover plate 10. The solid drug quantitative dosing mechanism includes a drug basket 12 fixed on a vertical plate 11 on one side of the cover plate 10, and a fixed plate 18, a bottom plate 17, and a sliding plate 13 set on the top of the cover plate 10. The sliding plate 13 has a first through hole 14, which, together with the bottom plate 17, forms a quantitative receiving cavity, and its initial position is directly opposite the bottom outlet of the drug basket 12 to receive solid drugs. The end of the sliding plate 13 is driven by a cylinder 20 and can slide along the bottom plate 17. The fixed plate 18 and the bottom plate 17 have corresponding second through holes 19 that coincide with the position of the drug inlet 8. The cylinder 20 pushes the sliding plate 13 according to a preset stroke, accurately moving the receiving cavity containing the quantitative drug to above the second through hole 19, and the drug then falls into the tank 1 through the drug inlet 8. The water inlet solenoid valve 3, the drain solenoid valve 5, the stirring motor 6, and the cylinder 20 are all controlled by the control module 22, and work together to complete the entire process of water intake, drug dissolution, and dosing.

[0023] In the quantitative drug delivery mechanism, a guide rail 15 is provided on the side of the base plate 17 near the cylinder 20. A slider 16, which slides along the guide rail 15, is mounted on the bottom of the sliding plate 13, forming a friction pair. The upper surface of the sliding plate 13 is in direct contact with the upper surface of the base plate 17, forming a friction pair that ensures the smoothness and accuracy of the sliding plate 13's movement. To further ensure quantitative accuracy, precision scrapers are symmetrically arranged on the inner wall of the bottom of the drug basket 12. The lower surface of the precision scraper forms a friction pair with the upper surface of the sliding plate 13, so that when the cylinder 20 pushes the sliding plate 13 to slide, the solid disinfectant overflowing from the receiving cavity is scraped off, ensuring that the amount of drug delivered by each cylinder 20 action is the same. This achieves highly repeatable quantitative drug delivery at the mechanical structure level, laying a solid foundation for subsequent concentration control, and preventing the solid disinfectant from sliding out of the drug basket 12 when the sliding plate 13 resets.

[0024] In the above, the target concentration and target dosage in the disinfection strategy directly determine the sequence of actions of a series of actuators within the reaction vessel. For example, to prepare the target concentration... Based on the concentration-water-dosage relationship of the solution, it is calculated that cylinder 20 needs to operate N times to deliver N portions of solid reagent from reagent basket 12 into the reaction tank; simultaneously, the opening time of water inlet solenoid valve 3 is controlled. 6. Stirring time of stirring motor The corresponding dosing time is controlled by opening the drain solenoid valve 5. .

[0025] Continue to refer to Figure 1 The control module 22 includes a deviation decision unit 24, a state compensation unit 25, and an instruction generation unit 26. The deviation decision unit 24 calculates the difference between the real-time residual chlorine value and the preset target value. If the difference is greater than or equal to a first deviation threshold, it calls a first mapping function and outputs a set of larger control parameters, including the number of cylinder 20 movements. Water intake duration Dosage duration If the difference is less than the threshold, the second mapping function is called to output another set of smaller cylinder action counts. Water intake duration Dosage duration This allows for graded adjustment of the response intensity based on the magnitude of the deviation. The state compensation unit 25 receives the temperature parameters and dosage ratio of the reaction vessel and calculates the dissolution efficiency parameters. and to The cumulative mixing demand value is obtained through continuous accumulation, and the mixing intensity coefficient is determined based on the mixing demand value. The accumulated value will eventually be combined with The product of these parameters is used as the output stirring time. The instruction generation unit 26 receives all parameters from the deviation decision unit 24 and the state compensation unit 25, generates a unified first control instruction containing specific timing and actions, and issues it to each actuator in the reaction tank, thus achieving intelligent composite control that responds to water quality deviations and compensates for changes in the dissolution environment. The formula for calculating the dissolution efficiency parameter is:

[0026] in, For dissolution efficiency parameters, This refers to the mass ratio of solid disinfectant to water. The temperature parameters of the reaction vessel, It's about the mass ratio. The increasing function indicates that the higher the drug concentration, the larger the function's output value. It is a decreasing function of the temperature parameter T, meaning that the lower the water temperature, the larger the function output value.

[0027] Stirring intensity coefficient The setting process employs a non-linear, segmented strategy. Specifically, the state compensation unit 25 presets a first cumulative demand threshold and a second cumulative demand threshold. When the cumulative stirring demand value calculated by the state compensation unit 25 is lower than the first cumulative demand threshold, it indicates that the dissolution conditions are good and the historical stirring demand is low. At this time, the stirring intensity coefficient... Take the smaller first fixed value directly. When the cumulative stirring demand value is between two thresholds, it indicates that the dissolution conditions are gradually deteriorating or the historical demand is increasing. At this point, the stirring intensity coefficient... Based on the specific location of the cumulative value within this interval, linear interpolation is used to... With a larger second fixed value The dynamic calculation between stirring intensity and dissolution difficulty creates a smooth and proportional relationship. When the cumulative stirring demand exceeds the second threshold, it indicates a difficult-to-dissolve condition such as low temperature or high concentration, and the stirring intensity coefficient... Then take the maximum value directly. By employing a segmentation and interpolation mechanism, the stirring time not only depends on the accumulated dissolution efficiency but also amplifies to the final stirring action with different sensitivities based on the degree of accumulation. This achieves adaptive matching between control response and the severity of the operating condition, optimizing the balance between energy consumption and dissolution effect.

[0028] In the above-described control module 22, a hybrid feedback evaluation unit 27 is also included. After the instruction generation unit 26 generates the first control instruction, the hybrid feedback evaluation unit 27 analyzes the instruction and comprehensively evaluates the intensity of the disinfectant solution preparation and addition operation based on the combination and magnitude of the number of cylinder 20 actions, water inlet duration, addition duration, and stirring duration contained in the instruction. This intensity is then categorized into three levels: strong, medium, and weak. The hybrid feedback evaluation unit 27 sets a corresponding feedback delay duration based on the assessed intensity level. After completing the addition operation, the control monitoring module 21 pauses routine monitoring and resumes the next residual chlorine value sampling monitoring only after this specific delay duration has elapsed. For example, a high number of cylinder actions, long water inlet and addition durations, and long stirring durations indicate a strong addition level, meaning a large disinfectant dosage and high solution concentration are applied. Because the added disinfectant solution has a large volume and high concentration, it takes longer to achieve uniform mixing and reaction equilibrium in the disinfected water. Therefore, a longer delay time is set. For weak-level addition, a shorter delay is set to ensure that the residual chlorine value collected by the monitoring module 21 is a representative value after the water has been fully mixed and the reaction has reached a stable state. This avoids misjudgment of control commands due to improper monitoring timing and effectively improves the stability and reliability of the feedback control loop.

[0029] In the above description, the control module 22 controls the water inlet and dosing process of the reaction tank by precisely controlling the opening duration of the water inlet solenoid valve 3 and the drain solenoid valve 5. Specifically, the first control command generated by the instruction generation unit 26 includes the water inlet duration calculated by the deviation decision unit 24. Dosage duration The control module 22 sends an electrical signal corresponding to the water inlet duration to the water inlet solenoid valve 3, causing it to open and maintain a precise flow. The timing, thereby controlling the amount of water entering the reaction tank, sends an electrical signal corresponding to the dosing duration to the drain solenoid valve 5, causing it to open and maintain a precise flow rate. The timing allows for control over the flow rate and total amount of the prepared disinfectant solution added to the water being disinfected.

[0030] like Figure 4 As shown, the hardware structure of the wind-solar hybrid power supply module 23 consists of a power generation unit, an energy storage unit, a power conversion unit, and a DC bus 33. The power generation unit includes parallel-connected solar panels 28 and a wind turbine 29. The energy storage unit is a battery pack 30. The power conversion unit includes a first power converter 31 and a second power converter 32; the input terminal of the first power converter 31 is connected to the output terminals of the solar panels 28 and the wind turbine 29, responsible for stabilizing voltage and performing maximum power point tracking for fluctuating wind and solar power generation; the second power converter 32 is bidirectionally connected to the battery pack 30, responsible for managing battery charging and discharging and voltage matching. The output terminals of the first power converter 31 and the second power converter 32 are jointly connected to the DC bus 33, providing unified power supply to all loads. Specifically, when the natural power generation from wind and solar power is sufficient to meet the load demand, the system enters the direct wind-solar power supply mode. In this mode, the second power converter 32 is turned off or only in a charging state, and all load power is supplied by the first power converter 31. When it is determined that natural power generation is insufficient, the system switches to the parallel wind-solar-battery power supply mode. In this mode, the second power converter 32 is activated and enters a discharging state, synchronously outputting current to the DC bus 33 along with the first power converter 31. The two currents are superimposed and combined on the bus to jointly power the load, thus ensuring the stability of the bus voltage under any conditions. The process of superimposing and combining the two currents on the bus is as follows: Total load current demand... This is determined by all the operating devices. The first power converter 31 will try its best to output current within its current maximum capacity range. The second power converter 32 uses an internal control loop to monitor the voltage and total current of the DC bus 33 in real time. When only... Unable to maintain stable bus voltage, i.e. < At that time, it automatically draws energy from the battery pack 30 and outputs a current. , making + = This satisfies the total load demand and pulls the bus voltage back to the set value. The synthesis process occurs at the physical connection point of the DC bus 33, where the current output by the first power converter 31... With the current output of the second power converter 32 They converge on DC bus 33 and together constitute the total current. Supply load.

[0031] Continue to refer to Figure 4 The wind-solar hybrid power supply module 23 also includes a power generation-side prediction model 34, an energy compensation unit 35, and an execution unit 36. The power generation-side prediction model 34 takes real-time collected wind speed and illuminance data as input and, through a built-in algorithm model, predicts the natural power generation curve that the solar panels 28 and wind turbine 29 can generate within a preset time interval (this interval is equal to the sum of the durations of all actions, such as water intake, addition, and stirring, included in the upcoming first control command). The energy compensation unit 35 retrieves the actual load power consumption curve recorded during the previous execution of the same first control command from historical data. The energy compensation unit 35 compares the predicted natural power generation curve with the historical load power consumption curve point by point in real time, calculating the power difference between the two, which is the amount of power compensation that the battery needs to provide or absorb. Finally, the execution unit 36 ​​generates a specific second control command based on the power compensation amount and sends it to the second power converter 32 to precisely control the discharge power magnitude and trend of the converter in the parallel supply mode of wind and solar batteries, thereby realizing active and feedforward compensation for natural power generation fluctuations and ensuring the power balance of the DC bus 33.

Claims

1. A combined disinfection device based on wind-solar hybrid power supply, characterized in that, include: A reaction vessel is used to dissolve solid disinfectants to prepare disinfectant solutions. The monitoring module (21) is used to monitor the residual chlorine value of the disinfected water in real time; The control module (22) is connected to the monitoring module (21) and selects the target concentration and target dosage of the disinfectant solution as the current disinfection strategy based on the different threshold ranges to which the residual chlorine value belongs. The control module (22) controls the operating parameters of the reaction vessel based on the current disinfection strategy; The wind-solar hybrid power supply module (23) is electrically connected to the reaction tank, the monitoring module (21) and the control module (22) respectively, and supplies power to the reaction tank, the monitoring module (21) and the control module (22); The control module (22) estimates the total power demand required to perform the next disinfection cycle based on the current disinfection strategy and the associated expected equipment actions, and sends it to the wind-solar hybrid power supply module (23). The wind-solar hybrid power supply module (23) dynamically selects the power supply mode based on the total power demand and the current parameters of the wind-solar hybrid power supply module (23). The power supply mode includes the direct wind-solar supply mode and the parallel wind-solar battery supply mode.

2. The integrated disinfection device based on wind-solar hybrid power supply according to claim 1, characterized in that, The reaction vessel includes a tank body (1), a cover plate (10) is provided on the top of the tank body (1), a water inlet (2) is provided on one side of the tank body (1), a water inlet solenoid valve (3) is provided at the water inlet (2), a drain outlet (4) is provided at the bottom of the tank body (1), and a drain solenoid valve (5) is provided at the drain outlet (4). A stirring motor (6) is provided in the middle of the cover plate (10), and a stirring rod (7) is connected to the output end of the stirring motor (6). The stirring rod (7) extends into the tank body (1). A medicine inlet (8) is also provided on the cover plate (10), and a medicine inlet pipe (9) is connected to the bottom of the medicine inlet (8). A medicine basket (12) is provided on the cover plate (10). The medicine basket (12) is fixedly connected to a vertical plate (11) located on one side of the cover plate (10). A fixing plate (18) is provided on the top of the cover plate (10). A bottom plate (17) is provided on the fixing plate (18). A sliding plate (13) is provided on the bottom plate (17). A first through hole (14) is provided on the sliding plate (13). The first through hole (14) and the bottom plate (17) form a receiving cavity. The first through hole (14) corresponds to the bottom outlet of the medicine basket (12) so that the solid disinfectant in the medicine basket (12) falls into the receiving cavity. A cylinder (20) is provided at the end of the sliding plate (13). The sliding plate (13) slides along the bottom plate (17) under the action of the cylinder (20). Both the fixing plate (18) and the bottom plate (17) are provided with overlapping second through holes (19), and the position of the second through hole (19) coincides with the inlet (8); the cylinder (20) causes the receiving cavity to slide to the second through hole (19) under a preset stroke, so that the solid disinfectant inside the receiving cavity falls into the inlet (8); The water inlet solenoid valve (3), the drain solenoid valve (5), the stirring motor (6), and the cylinder (20) are respectively connected to the control module (22).

3. A linkage-type disinfection device based on wind-solar hybrid power supply according to claim 2, characterized in that, The bottom plate (17) is provided with a guide rail (15) on the side near the cylinder (20), and the bottom of the sliding plate (13) is provided with a slider (16) that is slidably connected to the guide rail (15). The slider (16) and the guide rail (15) form a friction pair, and the sliding plate (13) and the base plate (17) form a friction pair; A precision scraper is symmetrically arranged on the inner wall of the bottom of the medicine basket (12). The lower surface of the precision scraper and the upper surface of the sliding plate (13) form a friction pair so that when the cylinder (20) pushes the sliding plate (13) to slide, the solid disinfectant overflowing from the receiving cavity is scraped off, so as to ensure that the amount of medicine delivered each time the cylinder (20) moves is the same, and to prevent the solid disinfectant from sliding out of the medicine basket (12) when the sliding plate (13) is reset.

4. A linkage-type disinfection device based on wind-solar hybrid power supply according to claim 3, characterized in that, The control module (22) includes: The deviation decision unit (24) is used to determine the difference between the real-time residual chlorine value and the preset target value. If the difference is greater than or equal to the first deviation threshold, the number of cylinder (20) actions that is mapped to the difference is output. Water intake duration Dosage duration If the difference is less than the first deviation threshold, then the number of cylinder actions that has a second mapping relationship with the difference is output. Water intake duration Dosage duration ; The state compensation unit (25) receives the temperature parameters of the reaction vessel and the mass ratio of the solid disinfectant to water, and generates a dissolution efficiency parameter based on the temperature parameters and the mass ratio; it performs cumulative calculation on the dissolution efficiency parameter within a preset time interval to obtain a cumulative stirring requirement value, and sets a stirring intensity coefficient based on the cumulative stirring requirement value, and uses the product of the cumulative stirring requirement value and the stirring intensity coefficient as the output stirring time; the dissolution efficiency parameter increases as the temperature parameter decreases and increases as the mass ratio increases; The instruction generation unit (26) is used to receive the output values ​​of the deviation decision unit (24) and the state compensation unit (25) and generate a first control instruction for controlling the reaction vessel.

5. A linkage-type disinfection device based on wind-solar hybrid power supply according to claim 4, characterized in that, The process for setting the stirring intensity coefficient is as follows: at least two cumulative stirring demand thresholds are set; when the cumulative stirring demand value is lower than the first cumulative demand threshold, the stirring intensity coefficient is set to a first fixed value. When the cumulative stirring demand value is between two cumulative stirring demand thresholds, the stirring intensity coefficient is obtained through linear interpolation. and Calculated between, where > When the cumulative stirring demand value exceeds the second cumulative demand threshold, the stirring intensity coefficient takes a second fixed value. .

6. A linkage-type disinfection device based on wind-solar hybrid power supply according to claim 5, characterized in that, The control module (22) further includes a hybrid feedback evaluation unit (27), which is connected to the instruction generation unit (26). Based on the parameters of cylinder (20) action number, water inlet duration, dosing duration and stirring duration included in the first control instruction, it generates a dosing intensity level that characterizes the intensity of this dosing operation. The dosing intensity level includes three levels: strong, medium and weak. The hybrid feedback evaluation unit (27) is also connected to the monitoring module (21). After the disinfectant solution is added, it controls the monitoring module (21) to perform the next sampling and monitoring of the residual chlorine value after a delayed feedback delay time. The feedback delay time is determined based on the dosing intensity level.

7. A combined disinfection device based on wind-solar hybrid power supply according to claim 6, characterized in that, The control module (22) controls the opening duration of the water inlet solenoid valve (3) as the water inlet duration and controls the opening duration of the drain solenoid valve (5) as the dosing duration.

8. A linkage-type disinfection device based on wind-solar hybrid power supply according to claim 7, characterized in that, The wind-solar hybrid power supply module (23) includes: Parallel solar panels (28) and wind turbine (29); Battery pack (30); The first power converter (31) is connected to the output terminals of the solar panel (28) and the wind turbine (29) respectively, and is used to achieve regulated output; The second power converter (32) is connected to the battery pack (30) and is used to realize charge and discharge control and voltage matching; The output terminals of the first power converter (31) and the second power converter (32) are both connected to the DC bus (33), which supplies power to the reaction vessel, the monitoring module (21) and the control module (22); In the direct wind and solar power supply mode, the second power converter (32) is in the off or charging state, and all the load power is supplied by the first power converter (31); in the parallel wind and solar battery power supply mode, the second power converter (32) is in the discharging state, and the first power converter (31) and the second power converter (32) simultaneously output current to the DC bus (33) and combine it on the DC bus (33) to jointly supply the load.

9. A linkage-type disinfection device based on wind-solar hybrid power supply according to claim 8, characterized in that, The wind-solar hybrid power supply module (23) also includes a power generation side prediction model (34), an energy compensation unit (35), and an execution unit (36). The power generation prediction model (34) takes the real-time collected wind speed and illuminance as input and outputs the natural power generation of the solar panel (28) and wind turbine (29) within a preset time interval. The preset time interval is the sum of the parameters of water inlet duration, dosing duration and stirring duration included in the first control command; The power compensation unit (35) is used to obtain the previous load power with the same first control command, and compare the load power consumption with the natural power generation to obtain the power compensation amount; The execution unit (36) generates a second control command for the second power converter (32) based on the power compensation amount and outputs it to the second power converter (32) to control the discharge power of the second power converter (32) in the parallel supply mode of wind and solar batteries.

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