Swimming pool water treatment system based on synergistic effect of medium-pressure ultraviolet rays and ozone

Abstract

The invention relates to the technical field of water treatment, and discloses a swimming pool water treatment system based on a medium-pressure ultraviolet ray and ozone synergistic effect, which comprises a pretreatment module, an ultraviolet ray treatment module, an ozone treatment module, a water quality regulation module, a recycling module and an emergency treatment module, a pretreatment tank, an ultraviolet reaction tank, an ozone contact tank, a water quality regulating tank, a circulating recycling pipeline and an emergency treatment pipeline are sequentially connected in a butt joint manner, so that the whole-process treatment of the swimming pool water from impurity removal to deep purification, water quality regulation and control to circulating optimization is realized; the sterilization, disinfection and pollutant removal capacities are enhanced, so that the dosage of chemical agents in a traditional treatment mode is reduced, the cyclic utilization rate of water resources is increased, and the potential risk of human health caused by substandard water quality is avoided; and the problems of incomplete sterilization, large water quality fluctuation, more medicament residues and serious resource waste in the traditional swimming pool water treatment can be jointly solved.

Description

Technical Field

[0001] This invention relates to the field of water treatment technology, specifically to a swimming pool water treatment system based on the synergistic effect of medium-pressure ultraviolet light and ozone. Background Technology

[0002] In the field of swimming pool water treatment, traditional disinfection methods mostly rely on chlorine-based chemical agents. While these can achieve a certain level of sterilization, they have many limitations. Firstly, chlorine disinfection has a limited range of sterilization and a slow sterilization rate, making it difficult to achieve the desired sterilization effect in a short time and failing to meet the stringent requirements for swimming pool water quality. Secondly, the reaction of chlorine with organic matter in the water produces byproducts such as chloramines. These chloramines can not only cause respiratory discomfort for swimmers but also corrode pool equipment, affecting its lifespan. Furthermore, the continuous addition of chemical agents during chlorine disinfection can easily lead to secondary water pollution, and long-term use can cause the accumulation of residual chemicals in the water, posing a potential threat to human health.

[0003] Furthermore, traditional treatment methods are ineffective in improving water quality, failing to effectively remove organic matter, resulting in insufficient water clarity and low ultraviolet light penetration, which affects subsequent disinfection. Moreover, traditional systems have high operating costs, large equipment footprint, cumbersome daily maintenance, and are easily affected by environmental factors such as water temperature, leading to poor operational stability.

[0004] In this context, a pool water treatment system based on the synergistic effect of medium-pressure ultraviolet light and ozone has emerged. This system can effectively compensate for the shortcomings of traditional treatment methods and provide a better solution for pool water treatment. Summary of the Invention

[0005] Technical problems to be solved To address the shortcomings of existing technologies, this invention provides a swimming pool water treatment system based on the synergistic effect of medium-pressure ultraviolet light and ozone. This system boasts advantages such as high-efficiency sterilization, chloramine degradation, reduced irritation, improved water quality, increased penetration rate, no secondary pollution, safe and reliable operation, and reduced operating costs. It solves the problems of traditional chlorine-based disinfection methods, including limited sterilization range, slow sterilization rate, generation of chloramine byproducts causing respiratory discomfort and equipment corrosion, poor water quality improvement, high operating costs, large equipment footprint, cumbersome daily maintenance, and poor operational stability affected by environmental factors such as water temperature.

[0006] (II) Technical Solution To achieve the above objectives, the present invention provides the following technical solution: a swimming pool water treatment system based on the synergistic effect of medium-pressure ultraviolet light and ozone, the system comprising a pretreatment module, an ultraviolet light treatment module, an ozone treatment module, a water quality conditioning module, a recycling module and an emergency treatment module, which are sequentially connected to the pretreatment tank, the ultraviolet light reaction tank, the ozone contact tank, the water quality conditioning tank, the recycling pipeline and the emergency treatment pipeline. The pretreatment module is connected to the pretreatment tank, which has a built-in multi-stage filtration device that removes large particulate impurities and suspended solids from the water, reducing the turbidity of the water. The ultraviolet treatment module is connected to the ultraviolet reaction tank and uses medium-pressure ultraviolet light to kill bacteria, viruses and algae in the water; The ozone treatment module is connected to the ozone contact tank, where ozone is used to further oxidize organic matter and microorganisms in the water; The water quality conditioning module is connected to the water quality conditioning tank and is used to adjust key indicators such as pH value, residual chlorine concentration and water temperature. The recycling module is connected to the recycling pipeline. The recycling module is used to collect, analyze and evaluate data from the pretreatment module, ultraviolet treatment module, ozone treatment module and water quality conditioning module, and provide optimization suggestions. The emergency treatment module connects to the emergency treatment pipeline. When the assessment information shows that the water quality is unqualified, the pool water is reintroduced into the pretreatment pool, ultraviolet reaction pool, ozone contact pool or water quality conditioning pool for further treatment.

[0007] Preferably, the pretreatment module includes a solid impurity filtration unit, a hair and fiber collection unit, and a coagulant treatment unit; The solid impurity filtration unit intercepts larger solid impurities in the water through a grid. The hair and fiber collection unit uses a hair collector to capture fine impurities such as hair, fibers, cotton wool, paper scraps, and small plastic particles in the water. The coagulant treatment unit adds a coagulant to the water, using one of polyaluminum chloride, aluminum sulfate, or alum, to coagulate colloids and tiny suspended solids in the water into flocs ranging from 100 to 500 micrometers.

[0008] Preferably, the ultraviolet treatment module is connected to the ultraviolet reaction tank and includes a medium-pressure ultraviolet lamp group, a water flow disturbance unit, and a lamp cleaning unit. The medium-pressure ultraviolet lamp group provides broad-spectrum ultraviolet irradiation in the range of 200nm to 400nm. The water flow disturbance unit makes the water flow evenly distributed through a stirrer or a water flow guide plate. The lamp cleaning unit cleans the lamps regularly through an automatic wiping device or a chemical cleaning agent.

[0009] Preferably, the ozone treatment module is connected to an ozone contact tank, which consists of an ozone generator, an ozone diffusion unit, and an exhaust gas treatment unit. The ozone generator produces ozone at a concentration of 5 mg / L-10 mg / L through corona discharge or water electrolysis. The ozone diffusion unit disperses the ozone evenly into the water through a microporous aerator or jet injector. The exhaust gas treatment unit treats unreacted ozone through activated carbon adsorption or catalytic decomposition devices.

[0010] Preferably, the water quality adjustment module includes a pH adjustment unit, a residual chlorine monitoring unit, and a temperature monitoring unit. The pH adjustment unit adjusts the pH of the water in the pool to 7.2-7.8 by adding 5%-10% hydrochloric acid or 5%-8% sodium hydroxide solution. The residual chlorine monitoring unit monitors the residual chlorine concentration in real time using a residual chlorine sensor. The temperature monitoring unit monitors the water temperature in real time using a temperature sensor. After the pH adjustment accuracy is adjusted by the automatic control system, the actual pH value in the pool is within the target pH range of 7.2-7.8, and the water quality compliance is assessed within this range.

[0011] Preferably, the recycling module includes a data acquisition unit, a data analysis unit, and an evaluation unit. The data acquisition unit is used to collect processing data from the pretreatment module, the ultraviolet treatment module, the ozone treatment module, and the water quality conditioning module. The data analysis unit calculates the operating parameters of each module in sequence based on the collected processing data. The evaluation unit evaluates the data based on the calculation results of the data analysis unit and provides optimization suggestions.

[0012] Preferably, the data analysis unit calculates the preprocessing efficiency by receiving the processed data from the preprocessing module. The calculation formula is as follows: In the formula, Indicates preprocessing efficiency. This indicates the concentration of suspended solids in the water before pretreatment. This indicates the concentration of suspended solids in the water after pretreatment.

[0013] Preferably, the data analysis unit calculates the sterilization rate by receiving processed data from the ultraviolet processing module. With chloramine decomposition rate The calculation formulas are as follows: In the formula, Indicates sterilization rate, This indicates the total number of bacteria in the water before treatment. This indicates the total number of bacteria in the treated water; In the formula, Indicates the chloramine decomposition rate. This indicates the concentration of chloramine in the water before treatment. This indicates the concentration of chloramine in the water after treatment.

[0014] Preferably, the data analysis unit calculates the ozone utilization rate by receiving the processed data from the ozone treatment module. With synergistic bactericidal enhancement rate The calculation formula is as follows: In the formula, Indicates ozone utilization rate, This indicates the amount of ozone injected. This indicates the amount of ozone in the exhaust gas; In the formula, Indicates the synergistic bactericidal enhancement rate. This indicates the sterilization effect when ozone and ultraviolet light are used in combination for disinfection. This indicates the sterilization effect when ozone is used alone. This indicates the sterilization effect when ultraviolet disinfection is used alone.

[0015] Preferably, the emergency treatment module is connected to an emergency treatment pipeline, which leads to the ultraviolet reaction tank and the ozone contact tank, and consists of an emergency monitoring unit, an automatic switching unit and a secondary treatment parameter adjustment unit; The emergency monitoring unit monitors the pretreatment efficiency in real time. Sterilization rate Chloramine decomposition rate Ozone utilization rate With synergistic bactericidal enhancement rate Within the specified numerical range, when the water quality assessment unit in the recycling module fails to meet the standards, the automatic switching unit transports the pool water through the emergency treatment pipeline to the pretreatment module, ultraviolet treatment module, ozone treatment module, or water quality conditioning module for retreatment. The secondary treatment parameter adjustment unit increases the multi-stage filtration device, ultraviolet irradiation intensity, or ozone dosage. After secondary treatment, the compliance rate of secondary treatment is achieved. Water volume meeting standards after secondary treatment Total water volume entering the emergency response module The calculation is performed using the formula 100% × 100%.

[0016] Compared with existing technologies, this invention provides a swimming pool water treatment system based on the synergistic effect of medium-pressure ultraviolet light and ozone, which has the following beneficial effects: 1. This invention calculates the sterilization rate. This is used as a key safety indicator for the evaluation unit to assess the microbial inactivation effect of the ultraviolet treatment module. When the sterilization rate... A sterilization rate of ≥99.9% indicates a significant sterilization effect and meets hygiene standards; when the sterilization rate... When the sterilization rate is between 99% and 99.9%, it is necessary to check whether the power of the ultraviolet lamp has decreased and whether the water flow distribution is uniform, and appropriately increase the irradiation intensity; when the sterilization rate is... When the efficiency is less than 99%, it is necessary to replace the aging lamps and optimize the water flow disturbance device to achieve the effect of completely killing pathogenic microorganisms and preventing the spread of diseases.

[0017] 2. This invention calculates the chloramine decomposition rate. This is used as a water quality comfort index for the evaluation unit, to assess the removal effect of ultraviolet light on chloramine (odor and irritant). When the chloramine decomposition rate... A concentration of ≥80% indicates low odor and irritation in the water, resulting in a good user experience; when the chloramine decomposition rate... When the concentration is between 50% and 80%, the UV irradiation time or intensity needs to be adjusted to enhance the decomposition effect; when the chloramine decomposition rate... When the concentration is less than 50%, it needs to be combined with the ozone treatment module to enhance the oxidation and decomposition of chloramine, thereby eliminating odors and reducing skin and mucous membrane irritation.

[0018] 3. This invention calculates ozone utilization rate. This is used as an economic and environmental indicator for evaluating the sufficiency of ozone's reaction with water. When the ozone utilization rate... A rate of ≥85% indicates high ozone utilization efficiency, requiring no adjustment; when the ozone utilization rate... When the ozone utilization rate is between 60% and 85%, the aeration uniformity of the diffusion unit needs to be checked, and the ozone dosing method optimized; when the ozone utilization rate... When the ozone utilization rate is less than 60%, the ozone diffusion device needs to be inspected (e.g., the microporous aerator is clogged), and the dosage and water flow rate need to be adjusted to improve ozone utilization efficiency and reduce operating costs.

[0019] 4. This invention calculates the synergistic bactericidal enhancement rate. This is used as a synergistic effect index for evaluating the combined effect of ozone and ultraviolet light treatment. When the synergistic bactericidal enhancement rate... When the synergistic effect is ≥30%, it indicates a significant synergistic effect, and the load on a single module can be appropriately reduced to save energy; when the synergistic bactericidal enhancement rate is ≥30%, it indicates a significant synergistic effect, and the load on a single module can be appropriately reduced to save energy. When the concentration is between 10% and 30%, the ratio of ozone dosage to ultraviolet intensity needs to be adjusted to enhance the synergistic effect; when the synergistic sterilization enhancement rate... When the concentration is less than 10%, it is necessary to check whether the ozone and ultraviolet lamp treatment sequence and contact time are matched, and re-optimize the combination parameters to achieve a sterilization effect of 1+1>2 and reduce reliance on a single module.

[0020] 5. This invention uses an emergency monitoring unit in the emergency treatment module to monitor key indicators in real time to quickly identify water quality anomalies. An automatic switching unit directs substandard water to the corresponding treatment module for secondary purification. A secondary treatment parameter adjustment unit enhances filtration, sterilization, or oxidation capabilities. The combination of these three units can solve the problem of sudden water quality failures during the circulation process and supplement the fault tolerance mechanism of the conventional treatment process to ensure that the pool water always meets safety standards, thereby avoiding the health risks caused by the direct reuse of substandard water. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the present invention; Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Please see Figure 1 A swimming pool water treatment system based on the synergistic effect of medium-pressure ultraviolet light and ozone. The system includes a pretreatment module, an ultraviolet light treatment module, an ozone treatment module, a water quality conditioning module, a recycling module, and an emergency treatment module, which are connected in sequence to the pretreatment tank, the ultraviolet light reaction tank, the ozone contact tank, the water quality conditioning tank, the recycling pipeline, and the emergency treatment pipeline. The pretreatment module is connected to the pretreatment tank, which has a built-in multi-stage filtration device to remove large particulate impurities and suspended solids from the water, reduce the turbidity of the water, and create favorable conditions for subsequent treatment. The ultraviolet treatment module is connected to the ultraviolet reaction tank and utilizes the broad-spectrum sterilization properties of medium-pressure ultraviolet lamps to efficiently kill bacteria, viruses and algae in the water; The ozone treatment module connects to the ozone contact tank, and through the strong oxidizing power of ozone, it further oxidizes organic matter and microorganisms in the water, thereby improving water quality. The water quality conditioning module connects to the water quality conditioning tank and is used to adjust key indicators such as pH value, residual chlorine concentration and water temperature to ensure that the water quality meets the standards. The recycling module interfaces with the recycling pipeline and includes a data acquisition unit, a data analysis unit, and an evaluation unit. The data acquisition unit collects data from each module; the data analysis unit calculates the operating parameters of each module based on the collected data; and the evaluation unit evaluates the data from the recycling module and provides optimization suggestions. The emergency treatment module connects to the emergency treatment pipeline. When the assessment information shows that the water quality is not up to standard, the pool water will be reintroduced into the pretreatment pool, ultraviolet reaction pool, ozone contact pool or water quality conditioning pool for further treatment.

[0024] The advantages are: by establishing pretreatment, ultraviolet (UV) treatment, ozone treatment, water quality conditioning, recycling, and emergency treatment modules, and sequentially connecting them to the pretreatment tank, UV reaction tank, ozone contact tank, water quality conditioning tank, recycling pipeline, and emergency treatment pipeline, the entire process of pool water treatment—from impurity removal to deep purification, water quality control, and recycling optimization—is achieved. The synergistic effect of multiple modules enhances sterilization, disinfection, and pollutant removal capabilities. Data-driven assessment and emergency mechanisms ensure water quality stability, reducing the amount of chemical reagents used in traditional treatment methods, increasing water resource recycling rates, and decreasing equipment wear and maintenance costs. This avoids the potential health risks posed by substandard water quality. The collaboration of each module can jointly solve the problems of incomplete sterilization, large water quality fluctuations, excessive reagent residues, and serious resource waste in traditional pool water treatment.

[0025] The pretreatment module includes a solid impurity filtration unit, a hair and fiber collection unit, and a coagulant treatment unit; The solid impurity filtration unit uses a grid to intercept larger solid impurities in the water, including leaves, plastic fragments, branches, stones, fruit shells, and sand, preventing these impurities from entering subsequent treatment modules and damaging the equipment. The hair and fiber collection unit uses a hair collector to capture fine impurities such as hair, fibers, cotton wool, paper scraps, and small plastic particles in the water, preventing them from tangling around equipment parts and affecting processing efficiency. The coagulant treatment unit adds a coagulant to the water, using one of polyaluminum chloride, aluminum sulfate, or alum, to coagulate colloids and tiny suspended solids in the water into flocs ranging from 100 to 500 micrometers, which are then removed by sedimentation, reducing the treatment load on subsequent treatment modules.

[0026] The pretreatment module first intercepts solid impurities such as leaves, stones, and other large particles, then captures fine impurities such as hair and fibers, and finally uses a coagulant to coagulate and precipitate colloids and tiny suspended solids. This reduces the content of various impurities in the water in stages, thereby solving the problem of equipment damage and reduced treatment efficiency caused by impurities clogging and entanglement in subsequent treatment modules. This creates low-load and highly stable influent conditions for deep purification.

[0027] The ultraviolet (UV) treatment module connects to the UV reaction tank and includes a medium-pressure UV lamp assembly, a water flow disturbance unit, and a lamp cleaning unit. The medium-pressure UV lamp assembly provides broad-spectrum UV irradiation in the range of 200nm to 400nm to efficiently sterilize, decompose chloramines, and oxidize organic matter. The water flow disturbance unit uses a stirrer or water flow guide plate to ensure uniform water flow and maintain treatment effectiveness. The lamp cleaning unit uses an automatic wiping device or chemical cleaning agent to regularly clean the lamps and maintain UV transmittance.

[0028] The ultraviolet treatment module utilizes the broad-spectrum irradiation of medium-pressure ultraviolet lamps to efficiently kill bacteria and viruses. The water flow disturbance unit ensures uniform irradiation of the water body, and the lamp cleaning unit maintains the ultraviolet penetration efficiency, thereby achieving the goal of comprehensively improving the sterilization effect, decomposing chloramines and oxidizing organic matter, while avoiding the problem of substandard local water treatment.

[0029] The ozone treatment module is connected to the ozone contact tank, which consists of an ozone generator, an ozone diffusion unit, and an exhaust gas treatment unit. The ozone generator produces ozone at a concentration of 5mg / L-10mg / L through corona discharge or water electrolysis. The ozone diffusion unit disperses the ozone evenly into the water through a microporous aerator or jet injector to improve utilization. The exhaust gas treatment unit treats unreacted ozone through activated carbon adsorption or catalytic decomposition devices to ensure the safety of the pool water.

[0030] The ozone treatment module described above stably produces high-concentration ozone through an ozone generator, achieves thorough mixing of ozone with water through a diffusion unit, and eliminates the safety hazards of unreacted ozone through an exhaust gas treatment unit. This achieves the effect of enhancing the oxidation and decomposition of organic matter and synergistically improving the sterilization ability of ultraviolet light, while ensuring the safety and environmental protection of the treatment process.

[0031] The water quality conditioning module includes a pH adjustment unit, a residual chlorine monitoring unit, and a temperature monitoring unit. The pH adjustment unit adjusts the pH of the water in the pool to 7.2-7.8 by adding 5%-10% hydrochloric acid or 5%-8% sodium hydroxide solution. The residual chlorine monitoring unit monitors the residual chlorine concentration in real time using a residual chlorine sensor. The temperature monitoring unit monitors the water temperature in real time using a temperature sensor. After the pH adjustment accuracy is adjusted by the automatic control system, the actual pH value in the pool is within the target range of 7.2-7.8, and the water quality compliance is assessed within this range.

[0032] The water quality adjustment module described above can precisely adjust the pH value of the water to a suitable range of 7.2-7.8, monitor and regulate the residual chlorine concentration in real time to maintain continuous sterilization ability, and monitor the water temperature to ensure the comfort of swimming pool water use. This achieves the effect of fully meeting safety standards for water quality indicators and improving the swimming experience, while avoiding equipment corrosion or chlorine failure caused by abnormal pH values.

[0033] The recycling module includes a data acquisition unit, a data analysis unit, and an evaluation unit. The data acquisition unit is used to collect the treatment data from the pretreatment module, the ultraviolet treatment module, the ozone treatment module, and the water quality conditioning module. The data analysis unit calculates the operating parameters of each module in sequence based on the collected treatment data. The evaluation unit evaluates the data based on the calculation results of the data analysis unit and provides optimization suggestions.

[0034] The data analysis unit receives the processed data from the preprocessing module and calculates the preprocessing efficiency. The calculation formula is as follows: In the formula, Indicates preprocessing efficiency. This indicates the concentration of suspended solids in the water before pretreatment. This indicates the concentration of suspended solids in the water after pretreatment.

[0035] The advantage is that it can calculate the preprocessing efficiency. This is used to evaluate the performance of the pretreatment module and its ability to remove impurities. When the pretreatment efficiency... When the efficiency is ≥90%, it indicates excellent preprocessing results, and the current operating parameters can be maintained; when the preprocessing efficiency is... When the efficiency reaches 70%–90%, it is recommended to check for clogging of the filter and insufficient coagulant dosage, and adjust the operating parameters accordingly; when the pretreatment efficiency reaches [a certain level], [further details needed]. When the efficiency is less than 70%, the machine needs to be shut down for cleaning or replacement of filter components, and the coagulant dosing scheme needs to be optimized to restore the pretreatment effect and reduce the load on subsequent modules.

[0036] The data analysis unit calculates the sterilization rate by receiving processed data from the ultraviolet processing module. With chloramine decomposition rate The calculation formulas are as follows: In the formula, Indicates sterilization rate, This indicates the total number of bacteria in the water before treatment. This indicates the total number of bacteria in the treated water; The advantage is that it can calculate the sterilization rate. This is used as a key safety indicator for the evaluation unit to assess the microbial inactivation effect of the ultraviolet treatment module. When the sterilization rate... A sterilization rate of ≥99.9% indicates a significant sterilization effect and meets hygiene standards; when the sterilization rate... When the sterilization rate is between 99% and 99.9%, it is necessary to check whether the power of the ultraviolet lamp has decreased and whether the water flow distribution is uniform, and appropriately increase the irradiation intensity; when the sterilization rate is... When the efficiency is less than 99%, it is necessary to replace the aging lamps and optimize the water flow disturbance device to achieve the effect of completely killing pathogenic microorganisms and preventing the spread of diseases.

[0037] In the formula, Indicates the chloramine decomposition rate. This indicates the concentration of chloramine in the water before treatment. This indicates the concentration of chloramine in the water after treatment.

[0038] The advantage is that it allows for the calculation of chloramine decomposition rate. This is used as a water quality comfort index for the evaluation unit, to assess the removal effect of ultraviolet light on chloramine (odor and irritant). When the chloramine decomposition rate... A concentration of ≥80% indicates low odor and irritation in the water, resulting in a good user experience; when the chloramine decomposition rate... When the concentration is between 50% and 80%, the UV irradiation time or intensity needs to be adjusted to enhance the decomposition effect; when the chloramine decomposition rate... When the concentration is less than 50%, it needs to be combined with the ozone treatment module to enhance the oxidation and decomposition of chloramine, thereby eliminating odors and reducing skin and mucous membrane irritation.

[0039] The data analysis unit calculates the ozone utilization rate by receiving the processed data from the ozone treatment module. With synergistic bactericidal enhancement rate The calculation formula is as follows: In the formula, Indicates ozone utilization rate, This indicates the amount of ozone injected. This indicates the amount of ozone in the exhaust gas; The advantage is that it allows for the calculation of ozone utilization rate. This is used as an economic and environmental indicator for evaluating the sufficiency of ozone's reaction with water. When the ozone utilization rate... A rate of ≥85% indicates high ozone utilization efficiency, requiring no adjustment; when the ozone utilization rate... When the ozone utilization rate is between 60% and 85%, the aeration uniformity of the diffusion unit needs to be checked, and the ozone dosing method optimized; when the ozone utilization rate... When the ozone utilization rate is less than 60%, the ozone diffusion device needs to be inspected (e.g., the microporous aerator is clogged), and the dosage and water flow rate need to be adjusted to improve ozone utilization efficiency and reduce operating costs.

[0040] In the formula, Indicates the synergistic bactericidal enhancement rate. This indicates the sterilization effect when ozone and ultraviolet disinfection methods are used in combination. For example, after treatment with a combination of ozone and medium-pressure ultraviolet light, the number of remaining E. coli colonies in the water is shown. This indicates the sterilization effect when ozone is used alone. For example, it shows the amount of residual bacteria after treating a water sample with the same initial concentration using only ozone. This indicates the sterilization effect when using ultraviolet disinfection methods alone, such as the amount of bacteria remaining in a water sample under the same conditions when irradiated with only medium-pressure ultraviolet light.

[0041] The advantage is that it can calculate the synergistic bactericidal enhancement rate. This is used as a synergistic effect index for evaluating the combined effect of ozone and ultraviolet light treatment. When the synergistic bactericidal enhancement rate... A synergistic effect of ≥30% indicates a significant synergistic effect, which can appropriately reduce the load on a single module to save energy; when the synergistic bactericidal enhancement rate is ≥30%, it indicates a significant synergistic effect, which can appropriately reduce the load on a single module to save energy. When the concentration is between 10% and 30%, the ratio of ozone dosage to ultraviolet intensity needs to be adjusted to enhance the synergistic effect; when the synergistic sterilization enhancement rate... When the concentration is less than 10%, it is necessary to check whether the treatment sequence and contact time of ozone and ultraviolet light are matched, and re-optimize the combination parameters to achieve a sterilization effect of 1+1>2 and reduce reliance on a single module.

[0042] The recycling module provides optimization suggestions based on the evaluation information from the evaluation unit. The specific suggestions are as follows: (1) Based on pretreatment efficiency Dynamically adjust the coagulant dosage and filter cleaning cycle to ensure stable impurity removal effect; (2) Combined with sterilization rate With synergistic bactericidal enhancement rate Optimize the ratio of the number of operating ultraviolet lamps to the ozone dosage concentration to reduce energy consumption while ensuring effectiveness; (3) Based on the chloramine decomposition rate The residual chlorine data monitored in real time by the residual chlorine monitoring unit is used to balance the intensity of ultraviolet radiation and the concentration of residual chlorine, thereby avoiding the contradiction between odor generation and insufficient sterilization ability. (4) By measuring ozone utilization rate The analysis was used to adjust the ozone diffusion method and water flow velocity to improve the reaction efficiency of ozone with water. (5) Based on the long-term trend of the operating parameters of each module, formulate a preventive maintenance plan for the equipment to reduce water quality fluctuations caused by sudden failures; The emergency treatment module connects to the emergency treatment pipeline, which leads to the ultraviolet reaction tank and the ozone contact tank. It consists of an emergency monitoring unit, an automatic switching unit, and a secondary treatment parameter adjustment unit. The emergency monitoring unit monitors the pretreatment efficiency in real time. Sterilization rate Chloramine decomposition rate Ozone utilization rate With synergistic bactericidal enhancement rate Within the specified numerical range, when the water quality assessment unit in the recycling module fails to meet the standards, the automatic switching unit transports the pool water through the emergency treatment pipeline to the pretreatment module, ultraviolet treatment module, ozone treatment module, or water quality conditioning module for retreatment. The secondary treatment parameter adjustment unit increases the multi-stage filtration device, ultraviolet irradiation intensity, or ozone dosage to ensure compliance. After secondary treatment, the compliance rate of secondary treatment is determined. Water volume meeting standards after secondary treatment Total water volume entering the emergency response module The calculation is performed using the formula 100% × 100%.

[0043] The advantages are: the emergency monitoring unit in the above emergency treatment module can monitor key indicators in real time to quickly identify water quality abnormalities; the automatic switching unit can guide unqualified water to the corresponding treatment module for secondary purification; and the secondary treatment parameter adjustment unit can enhance filtration, sterilization or oxidation capabilities. The combination of the three units can solve the problem of sudden water quality failure in the circulation process and supplement the fault tolerance mechanism of the conventional treatment process to ensure that the pool water always meets safety standards, thereby avoiding the health risks caused by the direct reuse of unqualified water.

[0044] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A swimming pool water treatment system based on the synergistic effect of medium-pressure ultraviolet light and ozone, characterized in that, The system includes a pretreatment module, an ultraviolet treatment module, an ozone treatment module, a water quality conditioning module, a recycling module, and an emergency treatment module, which are sequentially connected to the pretreatment tank, the ultraviolet reaction tank, the ozone contact tank, the water quality conditioning tank, the recycling pipeline, and the emergency treatment pipeline. The pretreatment module is connected to the pretreatment tank, which has a built-in multi-stage filtration device that removes large particulate impurities and suspended solids from the water, reducing the turbidity of the water. The ultraviolet treatment module is connected to the ultraviolet reaction tank and uses medium-pressure ultraviolet light to kill bacteria, viruses and algae in the water; The ozone treatment module is connected to the ozone contact tank, where ozone is used to further oxidize organic matter and microorganisms in the water; The water quality conditioning module is connected to the water quality conditioning tank and is used to adjust key indicators such as pH value, residual chlorine concentration and water temperature. The recycling module is connected to the recycling pipeline. The recycling module is used to collect, analyze and evaluate data from the pretreatment module, ultraviolet treatment module, ozone treatment module and water quality conditioning module, and provide optimization suggestions. The emergency treatment module connects to the emergency treatment pipeline. When the assessment information shows that the water quality is unqualified, the pool water is reintroduced into the pretreatment pool, ultraviolet reaction pool, ozone contact pool or water quality conditioning pool for further treatment.

2. The swimming pool water treatment system based on the synergistic effect of medium-pressure ultraviolet light and ozone according to claim 1, characterized in that: The pretreatment module includes a solid impurity filtration unit, a hair and fiber collection unit, and a coagulant treatment unit. The solid impurity filtration unit intercepts larger solid impurities in the water through a grid. The hair and fiber collection unit uses a hair collector to capture fine impurities such as hair, fibers, cotton wool, paper scraps, and small plastic particles in the water. The coagulant treatment unit adds a coagulant to the water, using one of polyaluminum chloride, aluminum sulfate, or alum, to coagulate colloids and tiny suspended solids in the water into flocs ranging from 100 to 500 micrometers.

3. The swimming pool water treatment system based on the synergistic effect of medium-pressure ultraviolet light and ozone according to claim 1, characterized in that: The ultraviolet treatment module is connected to the ultraviolet reaction tank and includes a medium-pressure ultraviolet lamp group, a water flow disturbance unit, and a lamp cleaning unit. The medium-pressure ultraviolet lamp group provides broad-spectrum ultraviolet irradiation in the range of 200nm to 400nm. The water flow disturbance unit uses a stirrer or a water flow guide plate to make the water flow evenly distributed. The lamp cleaning unit cleans the lamps regularly using an automatic wiping device or a chemical cleaning agent.

4. A swimming pool water treatment system based on the synergistic effect of medium-pressure ultraviolet light and ozone as described in claim 1, characterized in that: The ozone treatment module is connected to the ozone contact tank, which consists of an ozone generator, an ozone diffusion unit, and an exhaust gas treatment unit. The ozone generator produces ozone at a concentration of 5 mg / L-10 mg / L through corona discharge or water electrolysis. The ozone diffusion unit disperses the ozone evenly into the water through a microporous aerator or jet injector. The exhaust gas treatment unit treats unreacted ozone through activated carbon adsorption or catalytic decomposition devices.

5. A swimming pool water treatment system based on the synergistic effect of medium-pressure ultraviolet light and ozone according to claim 1, characterized in that: The water quality adjustment module includes a pH adjustment unit, a residual chlorine monitoring unit, and a temperature monitoring unit. The pH adjustment unit adjusts the pH of the water in the pool to 7.2-7.8 by adding 5%-10% hydrochloric acid or 5%-8% sodium hydroxide solution. The residual chlorine monitoring unit monitors the residual chlorine concentration in real time using a residual chlorine sensor. The temperature monitoring unit monitors the water temperature in real time using a temperature sensor. After the pH adjustment accuracy is adjusted by the automatic control system, the actual pH value in the pool is within the target pH range of 7.2-7.8, and the water quality compliance is assessed within this range.

6. A swimming pool water treatment system based on the synergistic effect of medium-pressure ultraviolet light and ozone according to claim 1, characterized in that: The recycling module includes a data acquisition unit, a data analysis unit, and an evaluation unit. The data acquisition unit is used to collect processing data from the pretreatment module, the ultraviolet treatment module, the ozone treatment module, and the water quality conditioning module. The data analysis unit calculates the operating parameters of each module in sequence based on the collected processing data. The evaluation unit evaluates the data based on the calculation results of the data analysis unit and provides optimization suggestions.

7. A swimming pool water treatment system based on the synergistic effect of medium-pressure ultraviolet light and ozone according to claim 6, characterized in that: The data analysis unit receives the processed data from the preprocessing module and calculates the preprocessing efficiency. The calculation formula is as follows: In the formula, Indicates preprocessing efficiency. This indicates the concentration of suspended solids in the water before pretreatment. This indicates the concentration of suspended solids in the water after pretreatment.

8. A swimming pool water treatment system based on the synergistic effect of medium-pressure ultraviolet light and ozone according to claim 6, characterized in that: The data analysis unit calculates the sterilization rate by receiving the processed data from the ultraviolet processing module. With chloramine decomposition rate The calculation formulas are as follows: In the formula, Indicates sterilization rate, This indicates the total number of bacteria in the water before treatment. This indicates the total number of bacteria in the treated water; In the formula, Indicates the chloramine decomposition rate. This indicates the concentration of chloramine in the water before treatment. This indicates the concentration of chloramine in the water after treatment.

9. A swimming pool water treatment system based on the synergistic effect of medium-pressure ultraviolet light and ozone according to claim 6, characterized in that: The data analysis unit calculates the ozone utilization rate by receiving the processed data from the ozone treatment module. With synergistic bactericidal enhancement rate The calculation formula is as follows: In the formula, Indicates ozone utilization rate, This indicates the amount of ozone injected. This indicates the amount of ozone in the exhaust gas; In the formula, Indicates the synergistic bactericidal enhancement rate. This indicates the sterilization effect when ozone and ultraviolet light are used in combination for disinfection. This indicates the sterilization effect when ozone is used alone. This indicates the sterilization effect when ultraviolet disinfection is used alone.

10. A swimming pool water treatment system based on the synergistic effect of medium-pressure ultraviolet light and ozone according to claim 1, characterized in that: The emergency treatment module is connected to the emergency treatment pipeline, which leads to the ultraviolet reaction tank and the ozone contact tank. It consists of an emergency monitoring unit, an automatic switching unit, and a secondary treatment parameter adjustment unit. The emergency monitoring unit monitors the pretreatment efficiency in real time. Sterilization rate Chloramine decomposition rate Ozone utilization rate With synergistic bactericidal enhancement rate Within the specified numerical range, when the water quality assessment unit in the recycling module fails to meet the standards, the automatic switching unit transports the pool water through the emergency treatment pipeline to the pretreatment module, ultraviolet treatment module, ozone treatment module, or water quality conditioning module for retreatment. The secondary treatment parameter adjustment unit increases the multi-stage filtration device, ultraviolet irradiation intensity, or ozone dosage. After secondary treatment, the compliance rate of secondary treatment is achieved. Water volume meeting standards after secondary treatment Total water volume entering the emergency response module The calculation is performed using the formula 100% × 100%.

Images