Self-adjustable disinfectant dosing device

Abstract

This utility model relates to the field of drinking water treatment technology, specifically providing an automatically adjustable disinfectant dosing device, which at least solves one of the problems of inconvenient disinfectant transportation and easy disinfectant deterioration. The disinfectant dosing device includes a liquid tank, a stirrer, and a solid dosing compartment. The liquid tank is equipped with a water inlet pipe and an inlet pipe communicating with its inner cavity. The stirring blades of the stirrer are rotatably mounted inside the liquid tank. The solid dosing compartment includes a compartment body, a dosing motor, and a screw rod. A dosing channel is formed inside the compartment, and the screw rod is positioned within the dosing channel, forming multiple dosing positions for placing solid tablets. The dosing channel has a dosing port located at the front end of the screw rod and communicating with the liquid tank. The dosing motor is driven by the rear end of the screw rod, causing the screw rod to rotate and drive the solid tablets to move towards the dosing port. This utility model has the advantages of convenient disinfectant transportation, long shelf life, controllable disinfectant concentration, and quantitative dosing.

Description

Technical Field

[0001] This utility model relates to the field of drinking water treatment technology, specifically providing an automatically adjustable disinfectant dosing device. Background Technology

[0002] Disinfection, as a core step in drinking water purification, directly impacts the safety of water microorganisms. In rural water supply projects, constrained by economic conditions and management levels, sodium hypochlorite solution is often used as the primary disinfection method for drinking water treatment. However, its practical application has revealed several problems, specifically: Firstly, transporting liquid medicines is inconvenient. Especially in remote mountainous areas with poor road conditions, liquid medicines must be carried by manpower, resulting in high transportation costs and low efficiency. Secondly, disinfectants are prone to failure. Finished liquid disinfectants are easily decomposed and ineffective due to environmental factors such as light and temperature, resulting in a relatively short effective shelf life. Frequent replacement of the agent is necessary, leading to increased operation and maintenance costs and decreased facility operational stability. Utility Model Content

[0003] The present invention aims to solve the above-mentioned technical problems, namely, to at least solve one of the problems of inconvenient transportation of liquid disinfectants and easy failure of disinfectants in existing disinfection methods.

[0004] In a first aspect, this utility model provides an automatically adjustable disinfectant dosing device, comprising a liquid tank, a stirrer, and a solid dosing compartment; the liquid tank is provided with a water inlet pipe and an infusion pipe communicating with its inner cavity; the stirring blade of the stirrer is rotatably disposed within the liquid tank; the solid dosing compartment includes a compartment body, a dosing motor, and a screw rod; a dosing channel is formed within the compartment body, and the screw rod is disposed within the dosing channel, forming multiple dosing positions for placing solid tablets; the dosing channel is provided with a dosing port located at the front end of the screw rod and communicating with the liquid tank, and the dosing motor is driven to the rear end of the screw rod, causing the screw rod to rotate to drive the solid tablets to move in a direction close to the dosing port.

[0005] In some feasible embodiments of the above-mentioned automatically adjustable disinfectant dosing device, the chamber is provided with a replenishment channel that communicates with the dosing channel.

[0006] In some feasible embodiments of the above-mentioned automatically adjustable disinfectant dosing device, there are multiple replenishment channels, each corresponding to a dispensing position.

[0007] In some feasible embodiments of the above-described automatically adjustable disinfectant dosing device, the chamber is provided with a removable chamber cover.

[0008] In some feasible embodiments of the above-described automatically adjustable disinfectant dosing device, the chamber is equipped with a counting detector for detecting the number of solid tablets passing through the dosing port.

[0009] In some feasible embodiments of the above-described automatically adjustable disinfectant dosing device, the infusion tube is equipped with a metering pump; and / or, the liquid tank is equipped with a level gauge.

[0010] In some feasible embodiments of the above-mentioned automatically adjustable disinfectant dosing device, the water inlet pipe is equipped with a control valve, and the infusion pipe is equipped with a bottom valve.

[0011] In some feasible embodiments of the above-mentioned automatically adjustable disinfectant dosing device, the liquid tank is provided with an emptying pipe communicating with its inner cavity.

[0012] In some feasible embodiments of the above-mentioned automatically adjustable disinfectant dosing device, an inspection port is provided on the outer wall of the liquid tank.

[0013] In some feasible embodiments of the above-described automatically adjustable disinfectant dosing device, the disinfectant dosing device further includes a controller, and the stirrer and the dosing motor are respectively connected to the controller.

[0014] The beneficial effects of this utility model are: (1) Compared with liquid sodium hypochlorite solution, using solid disinfectant tablets as the preparation raw material has the advantages of small volume, light weight and less leakage, which is especially suitable for remote mountainous areas with poor road conditions. It eliminates the weight of liquid in the disinfectant solution, greatly reduces the cost of manual handling, and avoids the risk of waste caused by packaging damage to liquid agents during handling; (2) Solid tablets have better chemical stability than liquid solutions and are less susceptible to decomposition and failure due to environmental factors such as temperature and light. This effectively extends the shelf life, reduces the need for frequent drug replacement, lowers the operation and maintenance costs of water purification facilities, and improves the continuity and stability of water purification facility operation. (3) By driving the screw rod to rotate through the dosing motor, the amount of solid tablets can be precisely controlled. Combined with the stirrer in the liquid tank, the liquid is mixed evenly, avoiding local concentration fluctuations and ensuring that the concentration of the prepared disinfectant is reliable and stable. It can realize the automatic quantitative addition of solid disinfectant tablets and the automatic preparation of disinfectant solution, and also saves the cost of manual preparation of liquid solution. Attached Figure Description

[0015] The preferred embodiments of this utility model are described below with reference to the accompanying drawings, in which: Figure 1 A three-dimensional structural diagram of the automatically adjustable disinfectant dosing device provided in this embodiment of the utility model; Figure 2 A schematic diagram of the internal structure of the automatically adjustable disinfectant dosing device provided in this embodiment of the utility model; Figure 3 A schematic diagram of the internal structure of the solid dosing compartment of the automatically adjustable disinfectant dosing device provided in this embodiment of the utility model.

[0016] Explanation of reference numerals in the attached figures: 1. Medicine tank; 11. Water inlet pipe; 12. Infusion pipe; 13. Metering pump; 14. Level gauge; 15. Control valve; 16. Drain pipe; 161. Drain valve; 17. Inspection port; 18. Bottom valve; 2. Stirrer; 21. Stirring motor; 22. Stirring blade; 3. Solid medicine preparation bin; 31. Bin body; 311. Dosing channel; 312. Dosing port; 313. Replenishment channel; 314. Partition; 315. Bin cover; 316. Counting detector; 32. Dosing motor; 33. Screw rod; 331. Dispensing position; 4. Controller. Detailed Implementation

[0017] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Those skilled in the art can make adjustments as needed to adapt to specific applications. To better illustrate the present invention, numerous specific details are provided in the following detailed description. Those skilled in the art should understand that the present invention can be implemented even without certain specific details.

[0018] In the description of this utility model, terms such as "upper," "lower," "inner," "outer," "left," "right," "front," and "rear," which indicate direction or positional relationships, are based on the actual direction or positional relationships in practical application. These terms are used merely for ease of description and do not indicate or imply that the device to be protected must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, ordinal numbers such as "first" and "second" are used only for convenience of explanation and are not used to indicate or imply relative importance.

[0019] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0020] Please see Figures 1 to 3This utility model provides an automatically adjustable disinfectant dosing device, which includes a liquid tank 1, a stirrer 2, and a solid dosing chamber 3.

[0021] The medicine tank 1 is equipped with a water inlet pipe 11 and an infusion pipe 12 that communicate with its inner cavity. In applications where rural drinking water is stored in a water storage device (which may be a clear water pool, a reservoir, a water tank, a water treatment device, or one or more other water storage devices with water storage functions), one end of the water inlet pipe 11 is connected to the inlet pipe of the water storage device, and the other end of the water inlet pipe 11 extends into the interior of the medicine tank 1 to supply clean water to the medicine tank 1. One end of the infusion pipe 12 extends into the interior of the medicine tank 1, and the other end of the infusion pipe 12 is connected to the inlet pipe of the water storage device to transport the prepared medicine solution in the medicine tank 1 to the water storage device.

[0022] The water supply pipe 11 is equipped with a control valve 15, and the solution tank 1 is equipped with a level gauge 14. The control valve 15 on the water supply pipe 11 and the level gauge 14 inside the solution tank 1 form a precise and coordinated system. Specifically, the level gauge 14 collects real-time data on the liquid level in the tank, providing accurate liquid level feedback to the system and ensuring that the clean water delivery volume meets the preset requirements. The control valve 15 opens and closes the pipeline in real time according to the preparation needs, dynamically adjusting the water supply to ensure that the clean water delivery volume matches the preset value, thereby maintaining a precise ratio of water to solid tablets. This design effectively avoids the concentration deviation of the disinfectant solution caused by water volume fluctuations, preventing both resource waste or safety risks caused by excessively high concentrations and insufficient disinfection effect caused by excessively low concentrations, ultimately ensuring the scientific and reliable preparation of the disinfectant solution.

[0023] Infusion tubing 12 is equipped with a metering pump 13 and a foot valve 18 (e.g.) Figure 2 As shown, the bottom valve 18 of the infusion tube 12 can be located inside the medicine tank 1 and near the bottom. When delivering the prepared medicine to the water storage device, the metering pump 13 accurately controls the amount of disinfectant delivered based on the real-time parameters of the water storage device (such as residual chlorine concentration), so as to realize the dynamic addition of disinfectant to meet the water quality requirements; the bottom valve 18 adopts a one-way valve design, which allows the liquid to flow forward and automatically closes the valve disc under reverse pressure to block the liquid backflow, which helps to prevent clean water from flowing back into the medicine tank 1.

[0024] Furthermore, such as Figure 1As shown, the medicine tank 1 is equipped with a drain pipe 16 communicating with its inner cavity. One end of the drain pipe 16 is directly connected to the bottom side of the medicine tank 1 using a through-type design. For example, a detachable and sealed connection can be achieved through an internal and external thread structure. The other end of the drain pipe 16 is connected to an inspection well or drainage ditch. The drain pipe 16 is equipped with a drain valve 161. The drain pipe 16 located at the bottom allows for complete drainage of the medicine tank 1 without any dead corners. With the precise control of the drain valve 161, sediment, residual medicine, and cleaning wastewater in the medicine tank 1 can be completely discharged to avoid cross-contamination and the risk of microbial growth, ensuring that the tank is in a clean state before each medicine preparation.

[0025] In addition, an inspection port 17 is provided on the outer wall of the medicine tank 1. Specifically, the inspection port 17 is located on the top of the medicine tank 1 or on the side wall near the top. The structure of the inspection port 17 can be designed with transparent material. Through the inspection port 17, the state of the medicine inside the medicine tank 1 (such as the uniformity of mixing and the distribution of sediment) and the operating status of the equipment (such as whether the agitator 2 is abnormal) can be directly observed. Regular cleaning is supported to prevent residual medicine or impurities from affecting the mixing accuracy. In addition, the detachable design of the inspection port 17 provides a quick access channel for maintenance or troubleshooting during malfunctions.

[0026] like Figure 2 As shown, the stirrer 2 includes a stirring motor 21 and a stirring blade 22. The stirring blade 22 is rotatably mounted inside the medicine tank 1, and the stirring motor 21 is installed on the top of the medicine tank 1. The output shaft of the stirring motor 21 is connected to the rotating shaft of the stirring blade 22 to drive the stirring blade 22 to rotate around a vertical axis. During operation, the stirring motor 21 drives the stirring blade 22 to rotate around a vertical axis through the transmission connection between its output shaft and the rotating shaft of the stirring blade 22, generating strong shear force and a circulating flow field. This mechanical power can accelerate the disintegration and dissolution of solid tablets, promote the uniform mixing of water and tablet components at the molecular level, help eliminate local concentration gradients, and ensure that the water-to-pharmaceutical ratio strictly meets the preset requirements during medicine preparation, thus eliminating fluctuations in disinfection effect caused by uneven mixing. The stirring time can be adjusted according to the properties of the tablets and the concentration of the preparation, ensuring sufficient tablet dissolution while also considering energy saving and consumption reduction.

[0027] In this embodiment, the solid drug dispensing chamber 3 includes a chamber body 31, a drug dispensing motor 32, and a screw rod 33. A drug dispensing channel 311 is formed inside the chamber body 31. The screw rod 33 is disposed inside the drug dispensing channel 311 and forms multiple drug placement positions 331 for placing solid tablets. The drug dispensing channel 311 is provided with a drug dispensing port 312 located at the front end of the screw rod 33 and communicating with the drug liquid tank 1. The drug dispensing motor 32 is driven to the rear end of the screw rod 33, so that the screw rod 33 rotates to drive the solid tablets to move in the direction close to the drug dispensing port 312.

[0028] Specifically, such asFigure 3 As shown, the dosing channel 311 is located at the bottom of the internal space of the chamber 31 and extends horizontally. The spiral rod 33 includes a spiral rod-shaped structure (such as a rotating spring) extending horizontally. The spiral rod 33 is located inside the dosing channel 311 and divides the dosing channel 311 into multiple dosing positions 331. The size of the dosing position 331 matches the size of the solid tablet, that is, the dosing position 331 can only hold a single solid tablet. The solid tablet is specifically a solid chlorine agent, such as a solid disinfectant preparation with chlorine dioxide or trichloroisocyanuric acid as the core component. The dosing motor 32 is located on one side of the chamber 31. The other side of the chamber 31 away from the dosing motor 32 has a protrusion that covers the dosing port 312 (the outer shape of the protrusion can be square or conical, as long as it does not affect the passage of the solid tablet through the dosing port 312). The output shaft of the dosing motor 32 is connected to a push plate, which is connected to the spiral rod 33 and can drive the spiral rod 33 to rotate. During operation, the solid drug dispensing chamber 3 is driven by the dosing motor 32 to rotate the screw rod 33. The screw rod 33 has multiple drug dispensing positions 331, which drive the solid tablets to move in an orderly manner along the dosing channel 311 to the dosing port 312 connected to the liquid medicine tank 1. Finally, the tablets are accurately and quantitatively dropped into the liquid medicine tank 1, completing the automated and precise dosing process and ensuring accurate water-to-drug ratio.

[0029] It should be noted that the solid drug dispensing chamber 3 structure in the above embodiments is merely exemplary, and the structure of the solid drug dispensing chamber 3 is not limited thereto. Those skilled in the art can adjust the external structure of the solid drug dispensing chamber 3 as needed, as long as it has the above functions.

[0030] Furthermore, the container 31 is equipped with a counting detector 316 to detect the number of solid tablets passing through the dosing port 312. The counting detector 316 can be a photoelectric sensor, an infrared sensor, etc. Taking a photoelectric sensor as an example, its transmitter and receiver are located on opposite sides of the dosing port 312. When a solid tablet passes by, the solid tablet blocks the light beam, triggering a pulse signal. The receiver accurately calculates the amount of medicine added at one time through signal waveform analysis (such as pulse width and amplitude changes). The counting detector 316 can accurately control the number of tablets added each time, thereby ensuring that the concentration of the prepared disinfectant is maintained at the required level. This not only improves the accuracy of disinfectant preparation but also avoids the errors that may occur when manually preparing the solution, greatly reducing the operating cost of rural water supply disinfection and improving the operating efficiency and reliability of the entire water supply system.

[0031] Furthermore, the storage chamber 31 is equipped with a replenishment channel 313 connected to the dosing channel 311, through which solid tablets can be replenished to the dispensing positions 331. The storage chamber 31 contains multiple partitions 314, with the replenishment channel 313 formed between adjacent partitions 314. There are multiple replenishment channels 313, each corresponding to a dispensing position 331. The dimensions of the dispensing positions 331 are precisely matched to the external dimensions of the solid tablets, forming a dedicated "one tablet per slot" placement structure. This means each dispensing position 331 can only hold one solid tablet, ensuring stable positioning and no overlapping during transport. This guarantees precise and controllable quantity of tablets pushed by the screw rod 33 in a single rotation, helping to avoid dosage deviations caused by tablet misalignment or quantity errors, thus ensuring the accuracy of the dosage from the source.

[0032] In addition, the storage compartment 31 is equipped with a removable cover 315, which provides a direct and unobstructed physical entrance for replenishing medication. Staff can quickly open the cover 315 and directly replenish the medication via the replenishment channel 313 and the medication dispensing position 331. Each replenishment channel 313 can store multiple solid medications, forming a "dynamic replenishment unit" with the corresponding medication dispensing position 331. When the dispensing motor 32 drives the screw rod 33 to rotate, the multiple medication dispensing positions 331 on the screw rod 33 move the solid medications along the dispensing channel 311 towards the dispensing port 312 connected to the liquid medicine tank 1 in an orderly manner. If a medication dispensing position 331 away from the dispensing port 312 becomes vacant, the medication in the corresponding replenishment channel 313 will immediately slide into the vacant position under gravity, achieving precise "instant replenishment" when empty. This process exhibits a progressive consumption characteristic, starting from the furthest point and moving closer. The tablets in the replenishment channel 313 furthest from the dispensing port 312 are consumed first, followed by continuous replenishment of tablets from adjacent replenishment channels 313 to their corresponding dispensing positions 331. Eventually, the tablets in all replenishment channels 313 are exhausted sequentially in spatial order (from the dispensing motor 32 to the dispensing port 312). When the monitoring system detects that all replenishment channels 313 along the direction from the dispensing motor 32 to the dispensing port 312 are empty of solid tablets or have fewer than a certain quantity of solid tablets, it triggers an alert signal, prompting staff to open the storage cover 315 and replenish the tablets in batches from each replenishment channel 313.

[0033] In this embodiment, as Figure 1 As shown, the disinfectant dosing device also includes a controller 4. The stirrer 2, the dosing motor 32, the metering pump 13, the level gauge 14, the control valve 15, and the drain valve 161 are respectively connected to the controller 4. The controller 4 serves as the intelligent hub of the disinfectant dosing device. By coordinating the linkage logic of the stirrer 2, the dosing motor 32, the metering pump 13, the level gauge 14, the control valve 15, and the drain valve 161, the controller 4 achieves automated, precise, and safe control of the dosing process.

[0034] Based on the aforementioned disinfectant dosing device structure, this utility model also provides a control method for an automatically adjustable disinfectant dosing device, the control method comprising: S1. When a pharmaceutical signal is received and the liquid level in the liquid tank 1 is less than or equal to the first preset liquid level threshold, the dosing motor 32 is started to add a first preset number of solid tablets into the liquid tank 1.

[0035] The pharmaceutical manufacturing signal refers to a pharmaceutical demand signal automatically triggered by monitoring liquid parameters (including parameters such as liquid level, concentration, and flow rate) within a water storage device (such as a clear water tank, reservoir, or storage tank, either directly triggered by manual operation). The liquid level in the pharmaceutical tank 1 can be obtained through the liquid level gauge 14 within the pharmaceutical tank 1. When a pharmaceutical manufacturing signal is received and the liquid level in the pharmaceutical tank 1 is less than or equal to a first preset liquid level threshold, it indicates that the pharmaceutical preparation process needs to be initiated and the liquid level in the pharmaceutical tank 1 is already low. At this time, the control system will automatically trigger the dispensing motor 32 to operate, precisely dispensing a first preset number of solid tablets into the pharmaceutical tank 1 through a screw conveyor mechanism, thereby officially starting the pharmaceutical preparation process. This mechanism, through the dual judgment of the liquid level threshold and the pharmaceutical manufacturing signal, ensures the timeliness of pharmaceutical preparation while avoiding resource waste caused by excessive dispensing of pharmaceutical solution, demonstrating the precise control characteristics of the intelligent pharmaceutical preparation system.

[0036] Furthermore, when a pharmaceutical signal is received and the liquid level in the pharmaceutical tank 1 is less than or equal to a first preset liquid level threshold, before starting the dispensing motor 32, the control method includes: S11. Obtain the continuous running time of the medicine tank 1 and compare the continuous running time with a first preset time threshold; based on the comparison result of the continuous running time and the first preset time threshold, selectively start the cleaning program of the medicine tank 1; if the continuous running time is greater than or equal to the first preset time threshold, start the cleaning program of the medicine tank 1.

[0037] Specifically, the continuous running time of the medicine tank 1 is calculated from the moment the cleaning procedure was completed last time. The continuous running time is reset after each cleaning cycle. The setting of the first preset time threshold requires comprehensive consideration of factors such as equipment hardware characteristics, chemical properties of the medicine, environmental conditions, and process requirements. By quantifying the balance between equipment usage intensity and risk, it ensures that the cleanliness of the medicine preparation environment and the disinfection effect meet standards, while also optimizing equipment lifespan and system automation efficiency. When the continuous running time is greater than or equal to the first preset time threshold (i.e., the duration of continuous operation exceeding the threshold for medicine tank 1), it indicates that medicine residue may accumulate inside the medicine tank 1, microorganisms may grow, or crystals may form, easily contaminating the newly prepared medicine. In this case, a forced cleaning procedure before adding the medicine can effectively remove residues, ensuring a clean medicine preparation environment, avoiding cross-contamination, and helping to ensure the sterility and concentration stability of the prepared medicine.

[0038] In this embodiment, the cleaning procedure of the medicine tank 1 includes: draining the liquid in the medicine tank 1; supplying liquid to the medicine tank 1 through the water pipe 11 and starting the stirrer 2 to clean the medicine tank 1; after the liquid level in the medicine tank 1 is greater than or equal to the first preset liquid level threshold, draining the liquid in the medicine tank 1 and turning off the stirrer 2.

[0039] Specifically, the drain valve 161 is opened, and the liquid in the medicine tank 1 is drained through the drain pipe 16. This initial drain removes residual medicine or impurities, preventing cross-contamination. Next, water is added, and the agitator 2 is activated. This creates a vortex to flush away scale, microbial film, and crystals from the inner wall, effectively improving the cleaning effect on the medicine tank 1. The first preset liquid level threshold is the threshold at which the cleaning water nearly fills the entire medicine tank 1. When the liquid level in the medicine tank 1 is greater than or equal to the first preset liquid level threshold, it indicates that the cleaning water has almost filled the entire medicine tank 1. At this point, a second drain is performed to completely remove the cleaning water, preventing residual cleaning water from diluting the new medicine. The agitator 2 can be turned off either simultaneously with or after the second drain. The number of times the water is added to the medicine tank 1 and the second drain is performed can be set by the operator based on equipment usage and actual needs.

[0040] S12. Obtain the storage time of the medicine in the medicine tank 1 and compare the storage time with the second preset time threshold; based on the comparison result of the storage time and the second preset time threshold, selectively start the cleaning program of the medicine tank 1; if the storage time is greater than or equal to the second preset time threshold, start the cleaning program of the medicine tank 1.

[0041] Specifically, the storage time of the solution in solution tank 1 is calculated from the moment the solution preparation was completed in solution tank 1. The storage time is reset after each new solution is prepared. The second preset time threshold needs to consider multiple factors, including the chemical stability of the solution, environmental conditions, and equipment characteristics. By quantifying storage risks and hygiene and safety requirements, it ensures that the solution maintains an effective concentration and hygiene standards during storage, avoiding the risk of reduced disinfection effectiveness or contamination due to expiration. When the storage time is greater than or equal to the second preset time threshold, it indicates that the prepared solution is nearing its expiration date and is at risk of becoming ineffective. At this time, the cleaning procedure of solution tank 1 needs to be started. This allows for dynamic control of the effectiveness of the solution before dosing, effectively preventing the risk of concentration decay, microbial growth, or chemical deterioration caused by long-term storage. It ensures that the solution used meets the effective concentration and hygiene standards. The cleaning procedure not only removes degradation products, microbial films, and other residues that may be generated by the expired solution, avoiding cross-contamination of the newly prepared solution, but also provides dual protection in conjunction with the runtime monitoring, thereby improving the reliability of the solution preparation process, the stability of the disinfection effect, and the level of precision in the automated management of the equipment.

[0042] It should be noted that the monitoring of continuous running time in step S11 and the monitoring of storage time in step S12 are performed simultaneously. That is, steps S11 and S12 are performed simultaneously without any order. As long as either step meets the start conditions of the cleaning program of the medicine tank 1, the cleaning program of the medicine tank 1 can be started.

[0043] S2, cause the water supply pipe 11 to deliver a first preset amount of solvent to the medicine tank 1.

[0044] Solid tablets are dissolved by adding a liquid solvent (usually water) to form a preliminary solution. The initial preset volume of liquid effectively controls the concentration of the solution, ensuring that the concentration of the completely dissolved solid tablets meets the requirements for subsequent stirring and dosing.

[0045] S3. Start the stirrer 2 to stir the liquid in the medicine tank 1 to form a disinfectant.

[0046] Mechanical stirring promotes thorough mixing of solid tablets and liquids, which helps to accelerate dissolution and ensure uniform concentration of the solution. It also shortens dissolution time and improves the efficiency of disinfectant preparation.

[0047] S4. Obtain the liquid parameters in the water storage device, and adjust the amount of disinfectant delivered to the water storage device through the infusion pipe 12 based on the liquid parameters.

[0048] In rural water supply systems, the liquid parameters of water storage devices (such as water production flow rate and residual chlorine concentration) may fluctuate due to seasonal changes and water demand. By monitoring the liquid parameters of the water storage devices in real time, the controller 4 can adjust the amount of disinfectant (i.e., the amount of disinfectant added) according to the changes in parameters. It can flexibly adapt to various complex and ever-changing situations in rural water supply systems and provide accurate and reliable disinfection protection for the safety of rural water supply quality.

[0049] Furthermore, the inlet flow rate and outlet residual chlorine concentration of the water storage device are obtained, and the amount of disinfectant delivered to the water storage device through the infusion pipe 12 is adjusted based on the inlet flow rate and outlet residual chlorine concentration.

[0050] Specifically, the flow rate of the produced water can be monitored in real time by installing a flow meter at the inlet pipe of the water storage device. When the inlet flow rate increases, the amount of disinfectant solution delivered to the water storage device through the infusion pipe 12 should be increased simultaneously to match the increase in inlet flow rate and ensure stable disinfection effect. Conversely, when the inlet flow rate decreases, the amount of disinfectant delivered should be reduced accordingly to avoid excessive disinfectant addition leading to excessive residual chlorine or waste of resources. The residual chlorine concentration of the water outlet of the water storage device can be obtained by a residual chlorine sensor inside the water storage device or at the outlet pipe. When the residual chlorine concentration of the water outlet is high, it indicates that the current amount of disinfectant added to the water storage device has exceeded the requirement. At this time, the amount of disinfectant solution delivered to the water storage device through the infusion pipe 12 should be reduced to avoid excessive disinfectant addition leading to excessive residual chlorine. When the residual chlorine concentration of the water outlet is low, the amount of disinfectant delivered should be increased or not adjusted, provided that the disinfection effect meets the standard, to maintain the residual chlorine concentration within a safe range.

[0051] The beneficial effects of this utility model are: (1) Compared with liquid sodium hypochlorite solution, using solid disinfectant tablets as the preparation raw material has the advantages of small volume, light weight and less leakage, which is especially suitable for remote mountainous areas with poor road conditions. It eliminates the weight of liquid in the disinfectant solution, greatly reduces the cost of manual handling, and avoids the risk of waste caused by packaging damage to liquid agents during handling; (2) Solid tablets have better chemical stability than liquid solutions and are less susceptible to decomposition and failure due to environmental factors such as temperature and light. This effectively extends the shelf life, reduces the need for frequent drug replacement, lowers the operation and maintenance costs of water purification facilities, and improves the continuity and stability of water purification facility operation. (3) By driving the screw rod 33 to rotate through the dosing motor 32, the amount of solid tablets can be precisely controlled. Combined with the stirrer 2 in the liquid tank 1, the liquid is mixed evenly, avoiding local concentration fluctuations and ensuring that the concentration of the prepared disinfectant is reliable and stable. This enables the automatic quantitative dosing of solid disinfectant tablets and the automatic preparation of disinfectant solution, and also saves the cost of manual preparation of liquid. (4) In the process of automatic drug dispensing, the control method adopts a closed-loop design of "intelligent triggering - precise dosing - dynamic regulation". That is, the automatic dosing is achieved by dual triggering of liquid level threshold and drug dispensing signal, and the amount of disinfectant delivered is adjusted in real time by combining the parameters of water storage device, so as to achieve precise control of residual chlorine, providing accurate and reliable disinfection guarantee for the safety of rural water supply, and adapting to the special needs of rural scenarios.

[0052] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. An automatically adjustable disinfectant dosing device, characterized by, The disinfectant dosing device includes a liquid tank (1), a stirrer (2), and a solid dosing container (3); The medicine tank (1) is equipped with a water inlet pipe (11) and an infusion pipe (12) that are connected to its inner cavity; The stirring blade (22) of the stirrer (2) is rotatably disposed inside the liquid tank (1); The solid drug dispensing chamber (3) includes a chamber body (31), a drug dispensing motor (32), and a screw rod (33). A drug dispensing channel (311) is formed inside the chamber body (31). The screw rod (33) is disposed inside the drug dispensing channel (311) and forms multiple drug placement positions (331) for placing solid tablets. The drug dispensing channel (311) is provided with a drug dispensing port (312) located at the front end of the screw rod (33) and communicating with the liquid medicine tank (1). The drug dispensing motor (32) is driven to the rear end of the screw rod (33) so that the screw rod (33) rotates to drive the solid tablets to move in a direction close to the drug dispensing port (312).

2. The automatically adjustable disinfectant dosing device according to claim 1, characterized in that, The chamber (31) is provided with a replenishment channel (313) that is connected to the drug delivery channel (311).

3. The automatically adjustable disinfectant dosing device according to claim 2, characterized in that, There are multiple medicine replenishment channels (313), and each channel is set up in a corresponding manner to a medicine dispensing position (331).

4. The self-adjustable disinfectant dosing device of claim 2, wherein, The compartment (31) is provided with a removable compartment cover (315).

5. The self-adjustable disinfectant dosing device of claim 1, wherein, The container (31) is equipped with a counting detector (316) for detecting the number of solid tablets passing through the drug delivery port (312).

6. The self-adjusting disinfectant dosing device of claim 1, wherein, The infusion tube (12) is equipped with a metering pump (13); and / or The liquid tank (1) is equipped with a level gauge (14).

7. The self-adjusting disinfectant dosing device of claim 1, wherein, The water supply pipe (11) is equipped with a control valve (15), and the infusion pipe (12) is equipped with a bottom valve (18).

8. The self-adjusting disinfectant dosing device of claim 1, wherein, The medicine tank (1) is equipped with an emptying pipe (16) that communicates with its inner cavity.

9. The self-adjusting disinfectant dosing device of claim 1, wherein, The outer wall of the medicine tank (1) is provided with an inspection port (17).

10. The automatically adjustable disinfectant dosing device according to any one of claims 1 to 9, characterized in that, The disinfectant dosing device also includes a controller (4), and the stirrer (2) and the dosing motor (32) are respectively connected to the controller (4).

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