A real-time preliminary sewage purification device for public lavatories

Abstract

This invention relates to the field of wastewater purification equipment technology, specifically a real-time preliminary purification device for wastewater from public bathrooms. The device includes a purification treatment mechanism comprising a purification treatment tank, a wastewater collection chamber, and a storage tank. An inlet pipe is fixedly installed on one side of the wastewater collection chamber, and a high-sensitivity wastewater detection component is installed inside the chamber. Several reagent tanks are fixedly installed on the top of the purification treatment tank, and a metering pump is fixedly installed on one side of each reagent tank. A spray pipe is fixedly installed on one end of the metering pump extending into the purification treatment tank. A mounting frame is fixedly installed on the bottom of the inner wall of the purification treatment tank, and a first water quality detection component is fixedly installed on the mounting frame. This invention, through the design of the purification treatment mechanism, improves the effectiveness and efficiency of wastewater purification in public bathrooms, enabling quantitative water intake and preliminary detection, precise dosing of chemicals, and accurate monitoring of the purified water quality, thus ensuring the stability of the purified water quality.

Description

Technical Field

[0001] This invention relates to a real-time preliminary purification device for sewage, and more particularly to a real-time preliminary purification device for sewage from public bathrooms, belonging to the technical field of sewage purification equipment. Background Technology

[0002] Public bathhouses, such as those in schools, gymnasiums, factories, and public bathhouses, are characterized by high traffic volume, concentrated usage periods, and continuous wastewater discharge. This type of wastewater is primarily bathing wastewater with a relatively stable composition of pollutants, mainly including surfactants (from shower gels, shampoos, etc.), grease, a small amount of hair, suspended solids, and some dissolved organic matter. Although the pollutant concentration is relatively low, the large volume and concentrated discharge time mean that if discharged directly into the municipal sewer system without treatment, it will still impact the wastewater treatment system, increase the treatment burden, and result in a significant waste of recyclable water resources.

[0003] Currently, the methods for treating wastewater from public bathrooms generally suffer from the following problems and pain points: Direct discharge of sewage is common, putting pressure on both the environment and the pipeline network. Most small and medium-sized public bathrooms do not have dedicated purification equipment. Sewage is discharged directly into the municipal sewage network after being filtered by simple screens to remove large particles. This not only results in a large amount of water being discharged without being used, but also causes the accumulation of pollutants such as surfactants and organic matter in the pipeline system, affecting the biochemical treatment efficiency of municipal sewage treatment plants and potentially interfering with sludge activity, thus increasing treatment costs.

[0004] In addition, existing purification devices have a low degree of automation and are difficult to adapt to fluctuations in water quality and quantity. Although a few places have installed simple purification equipment, these devices often have many design flaws. The current influent water control is crude and lacks a precise flow monitoring and adjustment mechanism. The influent water volume fluctuates greatly, resulting in unstable reaction time and inconsistent purification effects. Furthermore, the current dosing methods are relatively rigid, mostly using fixed dosing modes with fixed time or quantity, which cannot dynamically adjust the dosage of the agent according to the real-time concentration of pollutants in the wastewater. This often results in "overdosing" causing waste of agents and secondary pollution, or "underdosing" leading to substandard effluent quality. In addition, the current technology implementation process lacks a closed-loop feedback system. Most devices do not integrate online water quality monitoring units, making it impossible to achieve closed-loop control of "detection-treatment-re-detection". The purification process relies on experience-based operation, and the quality of the effluent cannot be guaranteed.

[0005] In addition, existing equipment is difficult to maintain and has poor long-term operational stability. The existing equipment has a relatively simple structural design, the filter unit is prone to clogging and is inconvenient to clean, the sensor is easily contaminated and damaged, and it lacks self-protection mechanisms (such as liquid level protection, reagent balance monitoring, etc.), resulting in a high equipment failure rate, high maintenance costs, and difficulty in achieving long-term stable operation.

[0006] Currently, there are very few bathroom wastewater purification devices on the market that can achieve remote monitoring, data reporting, intelligent early warning, and automatic adjustment. Managers cannot keep track of the equipment's operating status and water quality in real time, making it difficult to achieve refined and intelligent operation.

[0007] In summary, existing wastewater treatment methods for public bathrooms have significant shortcomings in terms of technology, economy, and management. There is an urgent need for a real-time preliminary purification device that can achieve quantitative water intake, real-time monitoring, precise dosing, closed-loop control, and intelligent operation and maintenance, in order to improve the resource utilization rate of wastewater, reduce the pressure on municipal pipe networks, and achieve green, energy-saving, and sustainable wastewater treatment goals.

[0008] Therefore, there is an urgent need to improve the real-time preliminary purification device for sewage in public bathrooms in order to solve the above-mentioned problems. Summary of the Invention

[0009] The purpose of this invention is to provide a real-time preliminary purification device for public bathroom wastewater. By setting up a purification treatment mechanism, it aims to improve the effect and efficiency of wastewater purification treatment in public bathrooms. It can realize quantitative water intake and preliminary detection, as well as precise dosing of chemicals and monitoring of purified water quality, thereby ensuring stable purified water quality, improving the utilization rate of wastewater resources, reducing the pressure on municipal pipe networks, and achieving the goal of green, energy-saving and sustainable wastewater treatment.

[0010] To achieve the above objectives, the main technical solutions adopted by the present invention include: A real-time preliminary purification device for public bathroom wastewater includes a purification treatment mechanism comprising a purification treatment tank, a wastewater collection pre-chamber, and a storage tank. An inlet pipe is fixedly installed on one side of the wastewater collection pre-chamber, and a high-sensitivity wastewater detection component is installed inside the wastewater collection pre-chamber. Several reagent tanks are fixedly installed on the top of the purification treatment tank, and a metering pump is fixedly installed on one side of each reagent tank. A spray pipe is fixedly installed on one end of the metering pump extending into the interior of the purification treatment tank. A mounting frame is fixedly installed on the bottom of the inner wall of the purification treatment tank, and a first water quality detection component is fixedly installed on the mounting frame.

[0011] Preferably, a first liquid level sensor is fixedly installed on the inner wall of the sewage collection chamber, a second liquid level sensor is fixedly installed on the inner wall of the reagent tank, an injection pipe is fixedly installed on the surface of the reagent tank, a threaded sleeve is fixedly installed at one end of the injection pipe, and a threaded nut is provided on the threaded sleeve.

[0012] Preferably, a plurality of slide rails are uniformly fixedly installed on the inner wall of the sewage collection chamber, and sliders are slidably installed inside the slide rails. A support frame is fixedly installed on the high-sensitivity sewage detection component, and the support frame is fixedly connected to a plurality of the sliders. A plurality of airbags are fixedly installed on the support frame.

[0013] Preferably, a motor is fixedly installed at the center of the top of the purification treatment box, and a stirring rod connected to the output end of the motor via a coupling is provided inside the purification treatment box. Several stirring blades are fixedly installed on the surface of the stirring rod, and several agitating plates are fixedly installed on the two stirring blades located at the bottom of the stirring rod.

[0014] Preferably, the wastewater collection chamber and the purification treatment box are connected by a first conveying pipe, and the purification treatment box and the storage box are connected by a second conveying pipe. Both the first and second conveying pipes are fixedly installed with an electric control valve and a conveying pump. A filter box is fixedly installed on the second conveying pipe. The top of the filter box is provided with a fixing plate, and the bottom of the fixing plate is fixedly installed with a metal filter screen, a filter gauze screen, and an activated carbon filter screen.

[0015] Preferably, two support blocks are fixedly installed on the surface of the filter box, a locking rod is movably installed at one end of each support block, two springs are fixedly installed between the locking rod and the support block, and locking blocks are fixedly installed on both sides of the fixing plate.

[0016] Preferably, a limiting block is fixedly installed at one end of the clamping rod, a limiting rod is movably installed on the limiting block, a limiting plate is fixedly installed at the bottom of the support block, and a slot adapted to the limiting rod is provided on the limiting plate.

[0017] Preferably, a sealing groove is provided on the top surface of the filter box, a sealing ring is fixedly installed on the fixing plate, and viewing windows are fixedly installed on both sides of the filter box.

[0018] Preferably, the outer walls of the purification treatment box, the sewage collection pre-chamber, and the storage box are all provided with a heat insulation layer, and the tops of the purification treatment box, the sewage collection pre-chamber, and the storage box are all provided with a sealing cover. Several fixing blocks are fixedly installed on the purification treatment box, the sewage collection pre-chamber, the storage box, and the sealing cover, and bolts are threadedly connected between two adjacent fixing blocks.

[0019] Preferably, a second water quality detection component is fixedly installed on the inner wall of the storage tank, a drain pipe is fixedly installed at the bottom of the storage tank, and the drain pipe is also equipped with the electrically controlled valve and the delivery pump. An overflow trough is opened on the sealing cover at the top of the storage tank, and a third delivery pipe is provided above the overflow trough.

[0020] This invention has at least the following beneficial effects: 1. During the implementation of the technical solution, the setting of the purification treatment unit improves the effect and efficiency of sewage purification treatment in public bathrooms, and realizes quantitative collection and real-time monitoring of sewage. By setting up a sewage collection pre-chamber, in conjunction with the first liquid level sensor and high-sensitivity sewage detection components, this solution can quantitatively control the influent and detect the types and concentrations of pollutants in the sewage in real time, providing data support for subsequent precise dosing and avoiding the unstable treatment effect caused by water volume fluctuations in traditional methods.

[0021] 2. Based on wastewater testing data, this technical solution allows the system platform to automatically control the metering pump to add chemicals from the corresponding chemical tanks as needed, achieving dynamic dosing and avoiding chemical waste or substandard purification. The purification treatment tank is equipped with a first water quality testing component, forming a closed-loop control of "testing - chemical dosing - retesting" to ensure that the effluent water quality is stable and meets the standards.

[0022] 3. The filter box in this technical solution adopts a modular design. The metal filter screen, filter mesh and activated carbon filter screen are fixed by a snap-fit ​​structure, which is convenient for disassembly and cleaning and avoids clogging. Each box is equipped with a removable sealing cover on the top, which facilitates internal cleaning and maintenance and improves the long-term stability of the equipment.

[0023] 4. This solution achieves multi-stage purification. After the wastewater is treated in the purification tank, it is further filtered by multi-stage filtration tanks to remove suspended solids and impurities. A second water quality testing component is installed in the storage tank to retest the final effluent and ensure the water quality is safe and reliable. This solution also prevents equipment overload by setting up an overflow channel to connect with the municipal pipe network, thus ensuring the safety of the equipment.

[0024] 5. This technical solution integrates multiple sensors such as liquid level, water quality, and reagent balance to achieve remote monitoring, automatic early warning, and intelligent adjustment, reducing manual management costs. The solution incorporates an insulation layer in the tank to adapt to low-temperature environments. The purified water can be used for flushing, landscaping, etc., improving water resource utilization and reducing the load on municipal pipe networks. Through the above solutions, this device achieves fully automated and intelligent control of the entire process from water intake, detection, dosing, reaction, filtration to storage. It has a compact structure, is easy to maintain, and is suitable for real-time preliminary purification and reuse of wastewater from bathrooms in various public places, with significant environmental and economic benefits.

[0025] 6. This technical solution improves the effectiveness and efficiency of sewage purification in public bathrooms by setting up a purification treatment mechanism. The solution includes a purification treatment tank, a sewage collection pre-chamber, and a storage tank. The sewage collection pre-chamber is used to collect sewage and detect pollutants, and can quantitatively control the influent flow to ensure that the amount of sewage delivered to the purification treatment tank each time is basically the same. The purification treatment tank can effectively purify the sewage.

[0026] 7. This solution utilizes a dosing mechanism installed on the purification tank. Based on data from pollutant detection in the wastewater collection chamber, the system platform automatically controls a metering pump to evenly add chemicals from the reagent tank into the purification tank for purification. The purification tank also has the function of monitoring the purified water quality to ensure the quality of the purification process. The storage tank is used to store the purified water. After purification in the purification tank, the water is transferred to the storage tank for daily use. This system enables quantitative water intake and preliminary testing, precise dosing, and accurate monitoring of purified water quality, effectively ensuring the stability of the purified water quality. Attached Figure Description

[0027] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a top view schematic diagram of the purification treatment box structure of the present invention; Figure 3 This is a cross-sectional schematic diagram of the purification treatment box structure of the present invention; Figure 4 This is a cross-sectional schematic diagram of the medicine box structure of the present invention; Figure 5 This is a schematic cross-sectional view of the wastewater collection chamber structure of the present invention; Figure 6 This is a schematic diagram of the support frame structure of the present invention; Figure 7 This is a schematic diagram showing the structural distribution of the metal filter screen, filter yarn screen, and activated carbon filter screen of the present invention. Figure 8 For the present invention Figure 7 Enlarged view of point A in the middle; Figure 9 This is a schematic diagram showing the connection between the limiting rod and the limiting plate structure of the present invention; Figure 10 This is a cross-sectional view of the storage box structure of the present invention; Figure 11 This is a control flow diagram of the wastewater collection pre-chamber to the purification treatment tank according to the present invention; Figure 12 This is a flowchart illustrating the control process from the purification treatment chamber to the storage chamber in this invention.

[0028] In the diagram, 1. Purification treatment mechanism; 2. Purification treatment chamber; 3. Wastewater collection pre-chamber; 4. Storage tank; 5. Inlet pipe; 6. High-sensitivity wastewater detection component; 7. Chemical tank; 8. Metering pump; 9. Spray pipe; 10. Fixing frame; 11. First water quality detection component; 12. First liquid level sensor; 13. Second liquid level sensor; 14. Threaded sleeve; 15. Nut; 16. Slide rail; 17. Slider; 18. Support frame; 19. Airbag; 20. Motor; 21. Stirring rod; 22. Stirring blade; 23. Stirring plate; 24. First conveying pipe; 25. Second... 26. Delivery pipe; 27. Electrically controlled valve; 28. Delivery pump; 29. ​​Filter box; 30. Fixing plate; 31. Metal filter screen; 32. Filter mesh; 33. Activated carbon filter screen; 34. Support block; 35. Clamping rod; 36. Spring; 37. Clamping block; 38. Limiting rod; 39. Limiting plate; 40. Sealing groove; 41. Sealing ring; 42. Viewing window; 43. Insulation layer; 44. Sealing cover; 45. Fixing block; 46. Bolt; 47. Second water quality detection component; 48. Drain pipe; 49. Overflow tank; 50. Third delivery pipe; 51. Liquid injection pipe. Detailed Implementation

[0029] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0030] like Figures 1-12 As shown in the figure, this embodiment provides an example of a real-time preliminary purification device for sewage in public bathrooms.

[0031] A real-time preliminary purification device for public bathroom wastewater includes a purification treatment unit 1. The purification treatment unit 1 includes a purification treatment box 2, a wastewater collection pre-chamber 3, and a storage box 4. An inlet pipe 5 is fixedly installed on one side of the wastewater collection pre-chamber 3. A high-sensitivity wastewater detection component 6 is provided inside the wastewater collection pre-chamber 3. Several reagent boxes 7 are fixedly installed on the top of the purification treatment box 2. A metering pump 8 is fixedly installed on one side of the reagent box 7. A spray pipe 9 is fixedly installed on one end of the metering pump 8 extending into the interior of the purification treatment box 2. A fixing frame 10 is fixedly installed on the bottom of the inner wall of the purification treatment box 2. A first water quality detection component 11 is fixedly installed on the fixing frame 10.

[0032] The installation of purification treatment unit 1 improves the effectiveness and efficiency of wastewater treatment in public bathrooms. It includes a purification treatment tank 2, a wastewater collection pre-chamber 3, and a storage tank 4. The wastewater collection pre-chamber 3 collects wastewater and detects pollutants; the data is transmitted to an external system platform, and the influent flow rate is quantitatively controlled to ensure a consistent amount of wastewater is delivered to the purification treatment tank 2 each time. The purification treatment tank 2 is used to purify the wastewater and is equipped with a dosing mechanism. Several chemical tanks 7 store flocculants, acid-base neutralizers, heavy metal scavengers, and oxidizing-reducing agents, and even phosphorus removal agents and deodorizers. In addition to antiscaling agents, relying on the data from the detection of pollutants in the sewage in the sewage collection chamber 3, the system platform automatically controls the metering pump 8 to evenly add the agents from the agent tank 7 into the purification treatment tank 2 for purification. After purification, the first water quality detection component 11 in the purification treatment tank 2 can also detect the purified water quality to ensure the quality of water purification. The storage tank 4 is used to store the purified water. After the purification treatment tank 2 purifies the water, it will be transported into the storage tank 4. The storage tank 4 stores the water for daily use, realizing quantitative water intake and preliminary detection, and can accurately add chemicals and monitor the purified water quality, ensuring the stability of the purified water quality.

[0033] A first liquid level sensor 12 is fixedly installed on the inner wall of the sewage collection pre-chamber 3. A second liquid level sensor 13 is fixedly installed on the inner wall of the reagent tank 7. An injection pipe 51 is fixedly installed on the surface of the reagent tank 7. A threaded sleeve 14 is fixedly installed at one end of the injection pipe 51. A threaded nut 15 is provided on the threaded sleeve 14. Several slide rails 16 are evenly fixedly installed on the inner wall of the sewage collection pre-chamber 3. A slider 17 is slidably installed inside the slide rail 16. A support frame 18 is fixedly installed on the high-sensitivity sewage detection component 6. The support frame 18 is fixedly connected to several sliders 17. Several airbags 19 are fixedly installed on the support frame 18. A motor 20 is fixedly installed at the center of the top of the purification treatment box 2. A stirring rod 21 connected to the output end of the motor 20 through a coupling is provided inside the purification treatment box 2. Several stirring blades 22 are fixedly installed on the surface of the stirring rod 21. Several stirring plates 23 are fixedly installed on the two stirring blades 22 at the bottom of the stirring rod 21.

[0034] By using a first liquid level sensor 12, a second liquid level sensor 13, a threaded sleeve 14, a nut 15, and an injection pipe 51, the first liquid level sensor 12 in the sewage collection pre-chamber 3 can quantitatively monitor the amount of sewage collected, ensuring that the amount of water delivered to the purification treatment tank 2 each time is the same. The second liquid level sensor 13 in the reagent tank 7 can monitor the remaining amount of reagent, sending a signal to the system platform when the reagent is depleted, allowing for timely replenishment of reagent through the injection pipe 51. The threaded connection of the threaded sleeve 14 and the nut 15 seals one end of the injection pipe 51, preventing dust and impurities from entering during reagent flow. The system also utilizes a slide rail 16 and a slider... 17. The support frame 18 and airbag 19 are designed with stainless steel as the slide rail 16, slider 17 and support frame 18, and the surface is coated with anti-corrosion coating. In the purification treatment tank 2, the height of the high-sensitivity sewage detection component 6 can be adjusted according to the sewage inflow by relying on the floating function of the airbag 19. The high-sensitivity sewage detection component 6 can monitor the sewage volume in the sewage collection chamber 3 in real time. With the setting of motor 20, stirring rod 21, stirring blade 22 and stirring plate 23, the motor 20 drives the stirring rod 21 to rotate after running. The rotation of the stirring rod 21 can make the stirring blade 22 and stirring plate 23 stir the sewage and the agent, so that the sewage and the agent are fully mixed and the purification treatment effect is improved.

[0035] In this embodiment, as Figures 1-12 As shown, the sewage collection pre-chamber 3 and the purification treatment box 2 are connected by a first conveying pipe 24, and the purification treatment box 2 and the storage box 4 are connected by a second conveying pipe 25. An electric control valve 26 and a conveying pump 27 are fixedly installed on both the first and second conveying pipes 24 and 25. A filter box 28 is fixedly installed on the second conveying pipe 25. A fixing plate 29 is provided on the top of the filter box 28. A metal filter screen 30, a filter gauze screen 31, and an activated carbon filter screen 32 are fixedly installed on the bottom of the fixing plate 29. Two support blocks 33 are fixedly installed on the surface of the filter box 28. A locking rod 34 is movably installed at one end of each support block 33. Two springs 35 are fixedly installed between the locking rod 34 and the support block 33. Locking blocks 36 are fixedly installed on both sides of the fixing plate 29. A limiting block 37 is fixedly installed at one end of the locking rod 34. A limiting rod 38 is movably installed on the limiting block 37. A limiting plate 39 is fixedly installed at the bottom of the support block 33. A slot adapted to the limiting rod 38 is provided on the limiting plate 39.

[0036] The first and second conveying pipes 24 and 25 are used to connect the sewage collection chamber 3, the purification treatment tank 2, and the storage tank 4 through the first conveying pipe 24, the second conveying pipe 25, the electric control valve 26, the conveying pump 27, the filter box 28, the fixing plate 29, the metal filter screen 30, the filter mesh 31, and the activated carbon filter screen 32. The water can be conveyed by the electric control valve 26 and the conveying pump 27. After the filter box 28 is set on the second conveying pipe 25, certain sediments will be generated in the water after purification in the purification treatment tank 2. When the purification treatment tank 2 conveys the treated water to the storage tank 4, the water will be filtered through the filter box 28 and then through the metal filter screen 30, the filter mesh 31, and the activated carbon filter screen 32 to filter and separate the sediments from the water flow, thereby further ensuring the water quality in the storage tank 4. In this design, the fixed plate 29 and the filter box 28 are connected and fixed by the engagement of two sets of clamping rods 34 and clamping blocks 36, and by multiple sets of springs 35. The engagement of clamping rods 34 and clamping blocks 36 is a movable connection. After the clamping rods 34 are pulled outward to separate from the clamping blocks 36, the fixing of the fixed plate 29 can be removed. Then the fixed plate 29 can be pulled upward to remove the metal filter screen 30, filter screen 31 and activated carbon filter screen 32 for cleaning to prevent clogging after long-term use. At the same time, after the clamping rods 34 are pulled outward, the limiting rod 38 is pushed down and inserted into the empty groove on the limiting plate 39, thereby overcoming the elasticity of the springs 35 and preventing the clamping rods 34 from resetting during disassembly.

[0037] In this embodiment, as Figures 1-12 As shown, a sealing groove 40 is provided on the top surface of the filter box 28, a sealing ring 41 is fixedly installed on the fixing plate 29, and viewing windows 42 are fixedly installed on both sides of the filter box 28. The outer walls of the purification treatment box 2, the sewage collection pre-chamber 3, and the storage box 4 are all provided with a heat insulation layer 43. The top of the purification treatment box 2, the sewage collection pre-chamber 3, and the storage box 4 are all provided with a sealing cover 44. Several fixing blocks 45 are fixedly installed on the purification treatment box 2, the sewage collection pre-chamber 3, the storage box 4, and the sealing cover 44. Bolts 46 are threadedly connected between two adjacent fixing blocks 45. A second water quality detection component 47 is fixedly installed on the inner wall of the storage box 4. A drain pipe 48 is fixedly installed at the bottom of the storage box 4, and an electric control valve 26 and a delivery pump 27 are also provided on the drain pipe 48. An overflow trough 49 is provided on the sealing cover 44 at the top of the storage box 4, and a third delivery pipe 50 is provided above the overflow trough 49.

[0038] In this design, the fixing plate 29 and the filter box 28 are connected by the sealing groove 40, the sealing ring 41, and the viewing window 42. At this time, the sealing groove 40 is tightly connected with the sealing ring 41, which plays a sealing role and prevents water from leaking from the gap at the connection. The viewing window 42 makes it easy to check the blockage of sediment in the filter box 28 so that it can be cleaned in time. With the setting of the insulation layer 43, the sealing cover 44, the fixing block 45, and the bolts 46, the insulation layer 43 can keep the purification treatment box 2, the sewage collection front chamber 3, and the storage box 4 warm, preventing the inside of the purification treatment box 2, the sewage collection front chamber 3, and the storage box 4 from freezing in low temperature environments. A sealing cover 44 is installed on the purification treatment box 2, the sewage collection pre-chamber 3 and the storage box 4, which is fixed by several fixing blocks 45 and bolts 46. After the bolts 46 are removed, the sealing cover 44 can be removed so that the interior of the purification treatment box 2, the sewage collection pre-chamber 3 and the storage box 4 can be cleaned and maintained regularly. With the installation of the second water quality detection component 47, the drain pipe 48, the overflow tank 49, and the third delivery pipe 50, the second water quality detection component 47 is used to re-detect the water quality of the reclaimed water to ensure that the water quality in the storage tank 4 meets the standards. The drain pipe 48 at the bottom of the storage tank 4 is used to transport the qualified reclaimed water to water points such as toilet flushing and greening irrigation. The other end of the third delivery pipe 50 is connected to the municipal sewage network, and the overflow water can be discharged into the municipal sewage network. At the same time, the high-sensitivity sewage detection component 6, the first water quality detection component 11, and the second water quality detection component 47 all include pH sensors, COD sensors, and suspended solids concentration sensors to achieve comprehensive monitoring of key water quality parameters of sewage and purified water.

[0039] In this embodiment, as Figures 1-12 As shown in the figure, the working process of the real-time preliminary purification device for public bathroom wastewater provided in this embodiment is as follows: Step 1: First, bathroom wastewater is introduced into the wastewater collection pre-chamber 3 through the inlet pipe 5. The high-sensitivity wastewater detection component 6 monitors parameters such as pollutant concentration, pH value, ammonia nitrogen content, total phosphorus content, heavy metal ion concentration, and odor concentration in the wastewater in real time. The first liquid level sensor 12 detects the wastewater level. When the wastewater reaches the set level, the first liquid level sensor 12 sends a signal to the controller. The system platform controls the electric valve 26 and the delivery pump 27 on the first delivery pipe 24 to open, delivering a fixed amount of wastewater into the purification treatment tank 2. Step 2: Based on the various water quality parameters detected by the high-sensitivity wastewater detection component 6, the system platform accurately calculates the required reagents and dosages for different specific water quality conditions: If the pH value of the wastewater is detected to be outside the suitable range of 6-9, the system automatically controls the metering pump 8 corresponding to the reagent tank 7 storing the acid-base neutralizing agent to start, and adds a quantitative amount of acid-base neutralizing agent into the purification treatment tank 2 through the spray pipe 9 to adjust the pH value of the wastewater to the neutral range, creating suitable conditions for subsequent purification reactions. If the concentration of suspended solids in the wastewater is detected to be too high or there is a large amount of colloidal matter, the metering pump 8 corresponding to the flocculant will be started to add flocculant, causing the suspended solids and colloids to quickly coagulate into large flocs, which will facilitate subsequent filtration and separation. If heavy metal ions are detected in the wastewater, the metering pump 8 corresponding to the heavy metal chelating agent will be activated to convert the heavy metal ions into insoluble precipitates through a chelation reaction, thus preventing heavy metal contamination of the reclaimed water. If the levels of ammonia nitrogen and total phosphorus in the wastewater exceed the standards, the system controls the metering pumps 8 corresponding to the phosphorus removal agent and the oxidizing-reducing agent to start in tandem. The phosphorus removal agent reacts with phosphorus ions to generate phosphate precipitates, and the oxidizing-reducing agent oxidizes and decomposes ammonia nitrogen into harmless substances, thus achieving nitrogen and phosphorus removal. If a noticeable odor is detected in the wastewater, such as a sulfide odor, start the metering pump 8 corresponding to the deodorizer, add the deodorizer to neutralize the odor molecules, and ensure that the reclaimed water has no unpleasant odor. For wastewater with hard water quality that is prone to scale formation, the system can add an appropriate amount of anti-scaling agent according to the water hardness data to prevent scale buildup inside the purification device and subsequent water pipes, thus extending the service life of the equipment. Step 3: After the reagents are added, the motor 20 starts, driving the stirring rod 21, stirring blade 22, and stirring plate 23 to rotate, ensuring that the wastewater and various reagents are fully mixed and reacted, thus ensuring that the purification effects are fully realized. During the reaction, the rotation of the stirring blade 22 and stirring plate 23 prevents flocs and sediments from settling at the bottom of the tank, ensuring uniform reaction. Step 4: After the reaction is complete, the first water quality detection component 11 performs a second test on the purified water to verify whether parameters such as pH value, pollutant concentration, and heavy metal ion concentration meet the standards. If the water quality meets the standards, the system platform controls the electric valve 26 and the delivery pump 27 on the second delivery pipe 25 to open. The wastewater passes through the metal filter screen 30, the filter mesh 31, and the activated carbon filter screen 32 in sequence for filtration and purification before entering the storage tank 4 for storage. If the first water quality detection component 11 detects that the water quality does not meet the standards, the system platform controls the corresponding metering pump 8 to add reagents again according to the water quality parameters that do not meet the standards, and restarts the motor 20 to stir and react until the water quality meets the standards before filtration and delivery. Step 5: The second water quality detection component 47 inside the storage tank 4 conducts a third comprehensive test on the reclaimed water to ensure that the water quality fully meets the standards for reclaimed water use. The qualified reclaimed water can be transported to water points such as toilet flushing, greening irrigation, and road cleaning through the drain pipe 48. If the water level in the storage tank 4 is too high, the excess qualified reclaimed water will be discharged into the municipal sewage network through the overflow tank 49 and the third delivery pipe 50. If the second water quality detection component 47 detects that the reclaimed water does not meet the standards, the system will close the electric control valve 26 on the drain pipe 48 and issue an alarm signal to remind staff to investigate the problem and prevent the discharge or use of substandard water.

[0040] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A real-time preliminary purification device for sewage in public bathrooms, characterized in that: The purification treatment mechanism (1) includes a purification treatment box (2), a sewage collection chamber (3) and a storage box (4). A water inlet pipe (5) is fixedly installed on one side of the sewage collection chamber (3). A high-sensitivity sewage detection component (6) is provided inside the sewage collection chamber (3). Several reagent boxes (7) are fixedly installed on the top of the purification treatment box (2). A metering pump (8) is fixedly installed on one side of the reagent box (7). A spray pipe (9) is fixedly installed on one end of the metering pump (8) extending into the interior of the purification treatment box (2). A fixing frame (10) is fixedly installed on the bottom of the inner wall of the purification treatment box (2). A first water quality detection component (11) is fixedly installed on the fixing frame (10).

2. The real-time preliminary purification device for public bathroom wastewater according to claim 1, characterized in that: A first liquid level sensor (12) is fixedly installed on the inner wall of the sewage collection chamber (3), a second liquid level sensor (13) is fixedly installed on the inner wall of the medicine tank (7), an injection pipe (51) is fixedly installed on the surface of the medicine tank (7), a threaded sleeve (14) is fixedly installed at one end of the injection pipe (51), and a threaded nut (15) is provided on the threaded sleeve (14).

3. The real-time preliminary purification device for public bathroom wastewater according to claim 1, characterized in that: Several slide rails (16) are uniformly fixedly installed on the inner wall of the sewage collection chamber (3). Slider (17) is slidably installed inside the slide rails (16). A support frame (18) is fixedly installed on the high-sensitivity sewage detection component (6), and the support frame (18) is fixedly connected to several sliders (17). Several airbags (19) are fixedly installed on the support frame (18).

4. The real-time preliminary purification device for public bathroom wastewater according to claim 1, characterized in that: A motor (20) is fixedly installed at the center of the top of the purification treatment box (2). Inside the purification treatment box (2), there is a stirring rod (21) connected to the output end of the motor (20) via a coupling. Several stirring blades (22) are fixedly installed on the surface of the stirring rod (21). Several stirring plates (23) are fixedly installed on the two stirring blades (22) at the bottom of the stirring rod (21).

5. A real-time preliminary purification device for public bathroom wastewater according to claim 1, characterized in that: The sewage collection chamber (3) and the purification treatment box (2) are connected by a first conveying pipe (24), and the purification treatment box (2) and the storage box (4) are connected by a second conveying pipe (25). An electric control valve (26) and a conveying pump (27) are fixedly installed on the first conveying pipe (24) and the second conveying pipe (25). A filter box (28) is fixedly installed on the second conveying pipe (25). A fixing plate (29) is provided on the top of the filter box (28), and a metal filter screen (30), a filter gauze screen (31), and an activated carbon filter screen (32) are fixedly installed on the bottom of the fixing plate (29).

6. A real-time preliminary purification device for public bathroom wastewater according to claim 5, characterized in that: Two support blocks (33) are fixedly installed on the surface of the filter box (28). A locking rod (34) is movably installed at one end of the support block (33). Two springs (35) are fixedly installed between the locking rod (34) and the support block (33). Locking blocks (36) are fixedly installed on both sides of the fixing plate (29).

7. A real-time preliminary purification device for public bathroom wastewater according to claim 6, characterized in that: One end of the lever (34) is fixedly installed with a limiting block (37), and a limiting rod (38) is movably installed on the limiting block (37). A limiting plate (39) is fixedly installed at the bottom of the support block (33), and a slot adapted to the limiting rod (38) is provided on the limiting plate (39).

8. A real-time preliminary purification device for sewage in public bathrooms according to claim 7, characterized in that: The top surface of the filter box (28) is provided with a sealing groove (40), a sealing ring (41) is fixedly installed on the fixing plate (29), and viewing windows (42) are fixedly installed on both sides of the filter box (28).

9. A real-time preliminary purification device for sewage in public bathrooms according to claim 5, characterized in that: The outer walls of the purification treatment box (2), the sewage collection chamber (3) and the storage box (4) are all provided with a heat insulation layer (43). The tops of the purification treatment box (2), the sewage collection chamber (3) and the storage box (4) are all provided with a sealing cover (44). Several fixing blocks (45) are fixedly installed on the purification treatment box (2), the sewage collection chamber (3), the storage box (4) and the sealing cover (44). Bolts (46) are threadedly connected between two adjacent fixing blocks (45).

10. A real-time preliminary purification device for sewage in public bathrooms according to claim 9, characterized in that: The inner wall of the storage tank (4) is fixedly installed with a second water quality detection component (47), the bottom of the storage tank (4) is fixedly installed with a drain pipe (48), and the drain pipe (48) is also equipped with the electric control valve (26) and the delivery pump (27). The sealing cover (44) at the top of the storage tank (4) is provided with an overflow trough (49), and a third delivery pipe (50) is provided above the overflow trough (49).

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