Online disinfectant adding device and method for intelligent water affair of sewage treatment plant

Abstract

The invention belongs to the technical field of sewage treatment, and particularly relates to an online disinfectant adding device and method for intelligent water affairs of a sewage treatment plant. A liquid storage barrel is arranged at the top end of the bottom plate; a cover body is rotationally arranged at the top end of the liquid storage barrel; a servo motor is arranged at the top end of the liquid storage barrel; the output end of the servo motor is fixedly connected with a rotating shaft; the rotating shaft penetrates through the surface of the liquid storage barrel and is rotationally connected with the liquid storage barrel; multiple groups of stirring rods are symmetrically and fixedly connected to the side wall of the rotating shaft; through the arrangement of a first stirring blade and a second stirring blade structure, the design is simple and convenient to operate, a disinfectant at the bottom of the storage container can be stirred when the disinfectant is mixed, so that the disinfectant can be mixed more uniformly, the disinfection effect is improved, foam generated by stirring can be treated while stirring, and the disinfection effect is improved. Therefore, the mixing effect can be improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of sewage treatment, and specifically relates to an online disinfectant dosing device and method for smart water services in a sewage treatment plant. Background Art

[0002] With the development of society, online disinfectant dosing devices are often needed in other fields such as sewage treatment, drinking water treatment, swimming pools and water parks, aquaculture, medical wastewater treatment, etc. The online disinfectant dosing device is a device used to automatically and accurately add disinfectants to the target system in a specific field.

[0003] Online disinfectant dosing devices are usually composed of disinfectant storage units, metering dosing units, monitoring control units, safety protection units and other components. In urban sewage treatment plants, although most of the organic matter and suspended solids have been removed from the sewage after biological treatment, some pathogenic microorganisms may still exist. By adding disinfectants online, such as sodium hypochlorite and chlorine dioxide, it can be ensured that the discharged sewage meets the national health standards. In addition, the online disinfectant dosing device can be integrated with the smart water system of the sewage treatment plant to achieve automatic control. In the prior art, it has been found through long-term use observation that the existing online disinfectant dosing device is difficult to stir the disinfectant at the bottom of the storage container when diluting and mixing the disinfectant. Since some disinfectants have high viscosity and poor fluidity, they are easy to accumulate at the bottom of the storage container, and the bottom disinfectant is difficult to be fully mixed into the whole, which may cause the concentration of the added disinfectant to be unstable. In certain periods of time, the concentration of the added disinfectant may be lower than the required level, thereby reducing the disinfection effect, causing the microbial content in the treated sewage to exceed the standard, affecting the effluent water quality, and thus causing uneven mixing of the disinfectant. To this end, the present invention provides an online disinfectant dosing device and method for smart water services in a sewage treatment plant. Summary of the invention

[0004] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0005] The technical solution adopted by the present invention to solve its technical problems is: the present invention is an online disinfectant dosing device for smart water services in a sewage treatment plant, comprising a base plate; a liquid storage barrel is arranged on the top of the base plate; a cover body is rotatably arranged on the top of the liquid storage barrel; a servo motor is arranged on the top of the liquid storage barrel; a rotating shaft is fixedly connected to the output end of the servo motor; the rotating shaft passes through the surface of the liquid storage barrel and is rotatably connected thereto; a plurality of groups of stirring rods are symmetrically fixedly connected to the side walls of the rotating shaft; a first stirring blade is symmetrically fixedly connected to the side walls of the rotating shaft; a rotating rod is symmetrically arranged on the side walls of the liquid storage barrel; a second stirring blade is symmetrically arranged on the side walls of the rotating rod; a plurality of groups of fixed rods are fixedly connected to the bottom end of the rotating shaft; a defoaming paddle is fixedly connected to the side walls of the fixed rod; the defoaming paddle is arranged in a conical shape.

[0006] Preferably, the side wall of the liquid storage barrel is fixedly connected with a plurality of elastic sheets; the side wall of the rotating shaft is fixedly connected with a connecting plate; the side wall of the connecting plate is fixedly connected with an elastic rod; and the end of the elastic rod is fixedly connected with a marble.

[0007] Preferably, a guide rail is provided on the outer side of the liquid storage barrel; a plurality of groups of sliding rods are slidably connected to the inner side of the guide rail; a bracket is fixedly connected to the side wall of the sliding rod; and a sunshade cloth is fixedly connected to the side wall of the bracket.

[0008] Preferably, one end of the sunshade cloth is fixed with a first connecting belt; a side wall of the first connecting belt is fixed with a clamping block; the other end of the sunshade cloth is fixed with a second connecting belt; a side wall of the second connecting belt is fixed with a clamping slot; the clamping slot and the clamping block are connected by clamping.

[0009] Preferably, positioning grooves are symmetrically provided at the top of the liquid storage barrel; a first magnetic block is fixedly connected to the inner side of the positioning groove; a collecting box is provided on one side of the liquid storage barrel; a second magnetic block is symmetrically fixedly connected to the bottom end of the collecting box; and the second magnetic block is connected to the first magnetic block by magnetic connection.

[0010] Preferably, an observation window is fixedly connected to the side wall of the liquid storage barrel; and a plurality of groups of scale lines are provided on the side wall of the observation window.

[0011] Preferably, a plurality of groups of legs are fixedly connected to the bottom end of the base plate; and rubber pads are fixedly connected to the bottom ends of the legs.

[0012] A method for online dosing of disinfectants in a sewage treatment plant smart water service comprises the following steps: S1. First, check all parts of the online disinfectant dosing device, including the liquid storage tank, metering pump, pipeline, valve, and sensor, to ensure that they are intact; S2. According to the requirements of sewage treatment and water quality characteristics, select a suitable disinfectant, inject the disinfectant into the liquid storage tank, and then set the parameters of the online disinfectant dosing device according to the scale of sewage treatment, water quality and disinfection requirements, including dosing dosage, dosing frequency and dosing time; S3. The flow rate and water quality data of sewage are collected in real time through sensors, and the data are transmitted to the control system. The control system analyzes and processes the data in real time, determines the current sewage treatment situation and disinfection requirements, and calculates the required disinfectant dosage based on the water quality analysis results and disinfection requirements; S4, the control system automatically controls the work of the metering pump according to the calculated disinfectant dosage, and adds an appropriate amount of disinfectant into the sewage; S5. Continuously monitor the sewage quality after disinfection, detect the microbial content and residual chlorine content through sensors, determine whether the disinfection effect meets the requirements, and optimize and adjust the parameters of the online disinfectant dosing device according to the actual operation conditions and monitoring data to improve the system's operating efficiency and disinfection effect.

[0013] Preferably, the automatic control metering pump proposed in S4 means that the metering pump can adjust the dosage speed and dosage according to preset parameters or real-time feedback signals to ensure accurate and stable dosage of the disinfectant.

[0014] The beneficial effects of the present invention are as follows: 1. The present invention provides a first stirring blade and a second stirring blade structure. This design is not only simple and convenient to operate, but also can stir the disinfectant at the bottom of the storage container when mixing the disinfectant, so that the disinfectant can be mixed more evenly, thereby improving the disinfection effect. Moreover, while stirring, the foam generated by the stirring can be processed, thereby improving the mixing effect.

[0015] 2. The present invention has a pinball structure, which is designed to knock on the elastic sheet. The shock force generated by the knocking can mix the disinfectant and water source in the liquid storage barrel more evenly, and can also shake off the dust and impurities adhering to the surface of the liquid storage barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the accompanying drawings.

[0017] Figure 1 It is a stereogram in the present invention; Figure 2 It is a schematic diagram of the structure of the defoaming paddle in the present invention; Figure 3 It is a schematic diagram of the structure of the second stirring blade in the present invention; Figure 4 It is a schematic diagram of the structure of the sunshade cloth in the present invention; Figure 5 It is a schematic diagram of the structure of the collection box in the present invention; Figure 6 The present invention is a flow chart of the method.

[0018] In the figure: 1 bottom plate; 10 liquid storage barrel; 11 cover body; 12 servo motor; 13 rotating shaft; 14 stirring rod; 15 first stirring blade; 16 rotating rod; 17 second stirring blade; 18 fixing rod; 19 defoaming paddle; 2 elastic sheet; 21 connecting plate; 22 elastic rod; 23 pinball; 3 guide rail; 31 sliding rod; 32 bracket; 33 sunshade cloth; 4 first connecting belt; 41 card block; 42 second connecting belt; 43 card slot; 5 positioning slot; 51 first magnetic block; 52 collecting box; 53 second magnetic block; 6 observation window; 61 scale line; 7 support leg; 71 rubber pad. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods. Example 1

[0020] An online disinfectant dosing device for smart water services in a sewage treatment plant, such as Figure 1-Figure 4As shown, it includes a bottom plate 1; a liquid storage barrel 10 is arranged at the top of the bottom plate 1; a cover body 11 is rotatably arranged at the top of the liquid storage barrel 10; a servo motor 12 is arranged at the top of the liquid storage barrel 10; a rotating shaft 13 is fixedly connected to the output end of the servo motor 12; the rotating shaft 13 passes through the surface of the liquid storage barrel 10 and is rotatably connected thereto; a plurality of stirring rods 14 are symmetrically fixedly connected to the side wall of the rotating shaft 13; a first stirring blade 15 is symmetrically fixedly connected to the side wall of the rotating shaft 13; a rotating rod 16 is symmetrically arranged on the side wall of the liquid storage barrel 10; a second stirring blade 16 is symmetrically arranged on the side wall of the rotating rod 16 7; Multiple groups of fixed rods 18 are fixedly connected to the bottom end of the rotating shaft 13; The side wall of the fixed rod 18 is fixedly connected with a defoaming paddle 19; The defoaming paddle 19 is set in a cone shape; When working, the liquid storage barrel 10 can be supported by the bottom plate 1, and the staff rotates the cover body 11, so that the disinfectant and the water source to be diluted can be added to the liquid storage barrel 10. After the filling is completed, the cover body 11 is closed and rotated, and the servo motor 12 is operated to drive the rotating shaft 13 to rotate, and the rotating shaft 13 is rotated, so that the stirring rod 14 can be driven to rotate, The water source and the disinfectant can be mixed evenly. When the stirring rod 14 rotates, the first stirring blade 15 can be driven to rotate. The rotation of the first stirring blade 15 can drive the second stirring blade 17 on the rotating rod 16 to rotate, so that the disinfectant at the bottom of the liquid storage barrel 10 can be stirred, so that the disinfectant at the bottom of the liquid storage barrel 10 can be mixed evenly, and foam will be generated during stirring. The fixing rod 18 can support the defoaming paddle 19. The defoaming paddle 19 is conical. When the rotating shaft 13 rotates, the defoaming paddle 19 can be driven to rotate. When the defoaming paddle 19 rotates, its special conical shape will produce a strong shear force on the foam. When the foam is subjected to the shear force, the film on its surface will be stretched and broken, so as to achieve the defoaming effect. This design is not only simple and convenient to operate, but also can stir the disinfectant at the bottom of the storage container when mixing the disinfectant, so that the disinfectant can be mixed more evenly, thereby improving the disinfection effect. Moreover, during stirring, the foam generated by stirring can be processed, so as to improve the mixing effect.

[0021] like Figure 1As shown, the side wall of the liquid storage barrel 10 is fixedly connected with multiple groups of elastic sheets 2; the side wall of the rotating shaft 13 is fixedly connected with a connecting plate 21; the side wall of the connecting plate 21 is fixedly connected with an elastic rod 22; the end of the elastic rod 22 is fixedly connected with a ball 23; when working, the elastic rod 22 can be supported by the connecting plate 21, and the ball 23 can be connected by the elastic rod 22. When the rotating shaft 13 rotates, the connecting plate 21 can be driven to rotate, and the elastic rod 22 can be driven to rotate by the connecting plate 21. The rod 22 rotates, thereby driving the ball 23 to knock on the elastic sheet 2. The shock force generated by the knocking can make the disinfectant in the liquid storage barrel 10 and the water source mixed more evenly, and the dust and impurities adhering to the surface of the liquid storage barrel 10 can be shaken off. Through this design, the elastic sheet 2 can be knocked, and the shock force generated by the knocking can make the disinfectant in the liquid storage barrel 10 and the water source mixed more evenly, and the dust and impurities adhering to the surface of the liquid storage barrel 10 can be shaken off.

[0022] like Figure 1-Figure 4 As shown, a guide rail 3 is provided on the outer side of the liquid storage barrel 10; a plurality of slide rods 31 are slidably connected to the inner side of the guide rail 3; a bracket 32 ​​is fixedly connected to the side wall of the slide rod 31; a sunshade cloth 33 is fixedly connected to the side wall of the bracket 32; during operation, the staff drags the slide rod 31 to slide in the guide rail 3, so that the bracket 32 ​​can drive the sunshade cloth 33 to wrap around the outer side of the liquid storage barrel 10. Through this design, the sunshade cloth 33 can be wrapped around the outer side of the liquid storage barrel 10, thereby reducing the decomposition or degradation of the disinfectant by ultraviolet rays in the sunlight.

[0023] like Figure 2-Figure 4 As shown, one end of the sunshade cloth 33 is fixedly connected to the first connecting belt 4; the side wall of the first connecting belt 4 is fixedly connected to the clamping block 41; the other end of the sunshade cloth 33 is fixedly connected to the second connecting belt 42; the side wall of the second connecting belt 42 is fixedly connected to the clamping groove 43; the connection method between the clamping groove 43 and the clamping block 41 is clamping; when working, the first connecting belt 4 and the second connecting belt 42 can play a connecting role, and the staff inserts the clamping block 41 into the clamping groove 43, so that the two ends of the sunshade cloth 33 can be connected together. Through this design, the two ends of the sunshade cloth 33 can be connected together, so that the sunshade cloth 33 can be completely wrapped around the outside of the liquid storage barrel 10, thereby improving the shading effect.

[0024] like Figure 1 and Figure 5As shown, a positioning groove 5 is symmetrically provided at the top of the liquid storage barrel 10; a first magnetic block 51 is fixedly connected to the inner side of the positioning groove 5; a collecting box 52 is provided on one side of the liquid storage barrel 10; a second magnetic block 53 is symmetrically fixedly connected to the bottom end of the collecting box 52; the second magnetic block 53 is connected to the first magnetic block 51 by magnetic connection; when working, the collecting box 52 is made of elastic material, and the staff clamps the notch of the collecting box 52 on the outer side of the filling port of the liquid storage barrel 10, so that the second magnetic block 53 is automatically inserted into the positioning groove 5 and connected with the first magnetic block 51, so that the collecting box 52 can be installed, and the collecting box 52 can collect the liquid overflowed during filling. This design can collect the liquid overflowed during filling, and is convenient for the staff to install and disassemble the collecting box 52, so that it is convenient for the staff to recycle the materials collected by the collecting box 52 later.

[0025] like Figure 1 and Figure 3 As shown, an observation window 6 is fixedly connected to the side wall of the liquid storage barrel 10; a plurality of scale lines 61 are provided on the side wall of the observation window 6; during operation, the staff can observe the interior of the liquid storage barrel 10 through the observation window 6, and the remaining amount of disinfectant can be clearly displayed through the scale lines 61. This design makes it easy for the staff to observe the mixing process of the disinfectant inside the liquid storage barrel 10, thereby improving practicality.

[0026] like Figure 4 As shown, a plurality of groups of legs 7 are fixedly connected to the bottom end of the base plate 1; a rubber pad 71 is fixedly connected to the bottom end of the leg 7; when working, the rubber pad 71 can be connected through the leg 7, and the friction between the device and the ground can be increased through the rubber pad 71. This design can increase the friction between the device and the ground, thereby improving the stability of the device during operation. Example 2

[0027] A method for online dosing of disinfectant for smart water services of a sewage treatment plant, the method is applicable to the online dosing of disinfectant for smart water services of a sewage treatment plant mentioned above, the method comprising the following steps: S1. First, check the various components of the online disinfectant dosing device, including the liquid storage tank 10, the metering pump, the pipeline, the valve, and the sensor, to ensure that they are intact; S2. According to the requirements of sewage treatment and water quality characteristics, a suitable disinfectant is selected and injected into the liquid storage barrel 10. Then, according to the scale of sewage treatment, water quality and disinfection requirements, the parameters of the online disinfectant dosing device are set, including dosing dosage, dosing frequency and dosing time; S3. The flow rate and water quality data of sewage are collected in real time through sensors, and the data are transmitted to the control system. The control system analyzes and processes the data in real time, determines the current sewage treatment situation and disinfection requirements, and calculates the required disinfectant dosage based on the water quality analysis results and disinfection requirements; S4. The control system automatically controls the metering pump according to the calculated disinfectant dosage to add an appropriate amount of disinfectant to the sewage; Figure 6 As shown, the automatic control metering pump proposed in S4 means that the metering pump can adjust the dosage speed and dosage according to preset parameters or real-time feedback signals to ensure accurate and stable dosage of the disinfectant.

[0028] S5. Continuously monitor the sewage quality after disinfection, detect the microbial content and residual chlorine content through sensors, determine whether the disinfection effect meets the requirements, and optimize and adjust the parameters of the online disinfectant dosing device according to the actual operation conditions and monitoring data to improve the system's operating efficiency and disinfection effect.

[0029] The method for online disinfectant addition of smart water services in sewage treatment plants also includes the following steps: Step 1, the bottom plate 1 can support the liquid storage barrel 10, and the staff can rotate the cover body 11 to add disinfectant and the water source that needs to be diluted into the liquid storage barrel 10. After the filling is completed, the cover body 11 is closed and rotated. The servo motor 12 is operated to drive the rotating shaft 13 to rotate. The rotating shaft 13 is rotated to drive the stirring rod 14 to rotate, so that the water source and the disinfectant can be evenly mixed. When the stirring rod 14 rotates, the first stirring blade 15 can be driven to rotate. The rotation of the first stirring blade 15 can drive the second stirring blade 17 on the rotating rod 16 to rotate, so that the disinfectant at the bottom of the liquid storage barrel 10 can be stirred, so that the disinfectant at the bottom of the liquid storage barrel 10 can be The venom is mixed evenly, and foam is generated while stirring. The fixing rod 18 can support the defoaming paddle 19. The defoaming paddle 19 is set in a cone shape, so when the rotating shaft 13 rotates, the defoaming paddle 19 can be driven to rotate. When the defoaming paddle 19 rotates, its special conical shape will produce a strong shear force on the foam. When the foam is subjected to the shear force, the film on its surface will be stretched and broken, thereby achieving the defoaming effect. This design is not only simple and convenient to operate, but also when mixing the disinfectant, the disinfectant at the bottom of the storage container can be stirred, so that the disinfectant can be mixed more evenly, thereby improving the disinfection effect. Moreover, while stirring, the foam generated by stirring can be processed, thereby improving the mixing effect.

[0030] Step 2, the elastic rod 22 can be supported by the connecting plate 21, and the ball 23 can be connected by the elastic rod 22. When the rotating shaft 13 rotates, the connecting plate 21 can be driven to rotate. The connecting plate 21 is rotated, so that the elastic rod 22 can be driven to rotate. The elastic rod 22 is rotated, so that the ball 23 can be driven to knock the elastic sheet 2. The shock force generated by the knocking can make the disinfectant in the liquid storage barrel 10 and the water source mixed more evenly, and the dust and impurities adhering to the surface of the liquid storage barrel 10 can be shaken off. Through this design, the elastic sheet 2 can be knocked. The shock force generated by the knocking can make the disinfectant in the liquid storage barrel 10 and the water source mixed more evenly, and the dust and impurities adhering to the surface of the liquid storage barrel 10 can be shaken off.

[0031] Step 3, the staff drags the slide bar 31 to slide in the guide rail 3, so that the bracket 32 ​​can drive the sunshade cloth 33 to wrap around the outside of the liquid storage barrel 10. Through this design, the sunshade cloth 33 can be wrapped around the outside of the liquid storage barrel 10, thereby reducing the decomposition or degradation of the disinfectant by ultraviolet rays in the sunlight.

[0032] Step 4, the first connecting belt 4 and the second connecting belt 42 can play a connecting role, and the staff inserts the card block 41 into the card slot 43, so that the two ends of the sunshade cloth 33 can be connected together. Through this design, the two ends of the sunshade cloth 33 can be connected together, so that the sunshade cloth 33 can be completely wrapped around the outside of the liquid storage barrel 10, thereby improving the shading effect.

[0033] Step 5, the collecting box 52 is made of elastic material, and the staff clamps the notch of the collecting box 52 on the outside of the filling port of the liquid storage barrel 10, so that the second magnetic block 53 is automatically inserted into the positioning groove 5 to connect with the first magnetic block 51, so that the collecting box 52 can be installed, and the liquid overflowing during filling can be collected by the collecting box 52. This design can collect the liquid overflowing during filling, and is convenient for the staff to install and disassemble the collecting box 52, so that the staff can recycle the materials collected by the collecting box 52 later.

[0034] Step 6, the observation window 6 allows the staff to observe the interior of the liquid storage barrel 10, and the scale line 61 can clearly display the remaining amount of disinfectant. This design allows the staff to observe the mixing process of the disinfectant inside the liquid storage barrel 10, thereby improving practicality.

[0035] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. An online disinfectant dosing device for smart water management of a sewage treatment plant, comprising a bottom plate (1); characterized in that: A liquid storage barrel (10) is arranged at the top of the bottom plate (1); a cover body (11) is rotatably arranged at the top of the liquid storage barrel (10); a servo motor (12) is arranged at the top of the liquid storage barrel (10); a rotating shaft (13) is fixedly connected to the output end of the servo motor (12); the rotating shaft (13) passes through the surface of the liquid storage barrel (10) and is rotatably connected thereto; a plurality of groups of stirring rods (14) are symmetrically fixedly connected to the side wall of the rotating shaft (13); a first stirring blade (15) is symmetrically fixedly connected to the side wall of the rotating shaft (13); a rotating rod (16) is symmetrically arranged on the side wall of the liquid storage barrel (10); a second stirring blade (17) is symmetrically arranged on the side wall of the rotating rod (16); a plurality of groups of fixed rods (18) are fixedly connected to the bottom end of the rotating shaft (13); a defoaming paddle (19) is fixedly connected to the side wall of the fixed rod (18); the defoaming paddle (19) is arranged in a conical shape.

2. The online disinfectant dosing device for smart water services in a sewage treatment plant according to claim 1 is characterized by: The side wall of the liquid storage barrel (10) is fixedly connected to a plurality of groups of elastic sheets (2); the side wall of the rotating shaft (13) is fixedly connected to a connecting plate (21); the side wall of the connecting plate (21) is fixedly connected to an elastic rod (22); and the end of the elastic rod (22) is fixedly connected to a pinball (23).

3. The online disinfectant dosing device for smart water services in a sewage treatment plant according to claim 1 is characterized by: A guide rail (3) is provided on the outside of the liquid storage barrel (10); a plurality of groups of slide bars (31) are slidably connected to the inside of the guide rail (3); a bracket (32) is fixedly connected to the side wall of the slide bar (31); and a sunshade cloth (33) is fixedly connected to the side wall of the bracket (32).

4. The online disinfectant dosing device for smart water management of a sewage treatment plant according to claim 3 is characterized by: One end of the sunshade cloth (33) is fixedly connected to a first connection belt (4); a side wall of the first connection belt (4) is fixedly connected to a clamping block (41); the other end of the sunshade cloth (33) is fixedly connected to a second connection belt (42); a side wall of the second connection belt (42) is fixedly connected to a clamping groove (43); the clamping groove (43) and the clamping block (41) are connected by clamping.

5. The online disinfectant dosing device for smart water management of a sewage treatment plant according to claim 1 is characterized by: The top of the liquid storage barrel (10) is symmetrically provided with positioning grooves (5); a first magnetic block (51) is fixedly connected to the inner side of the positioning groove (5); a collecting box (52) is provided on one side of the liquid storage barrel (10); a second magnetic block (53) is symmetrically fixedly connected to the bottom end of the collecting box (52); the second magnetic block (53) is connected to the first magnetic block (51) by magnetic connection.

6. The online disinfectant dosing device for smart water management of a sewage treatment plant according to claim 1 is characterized by: An observation window (6) is fixedly connected to the side wall of the liquid storage barrel (10); the side wall of the observation window (6) is provided with a plurality of groups of scale lines (61).

7. The online disinfectant dosing device for smart water management of a sewage treatment plant according to claim 1 is characterized by: The bottom end of the bottom plate (1) is fixedly connected to a plurality of groups of supporting legs (7); the bottom ends of the supporting legs (7) are fixedly connected to rubber pads (71).

8. A method for online dosing of disinfectant for smart water services of a sewage treatment plant, the method being applicable to an online dosing of disinfectant device for smart water services of a sewage treatment plant mentioned in claims 1-7, the method comprising the following steps: S1. First, check the various components of the online disinfectant dosing device, including the liquid storage tank (10), the metering pump, the pipeline, the valve, and the sensor, to ensure that they are intact; S2. According to the requirements of sewage treatment and water quality characteristics, a suitable disinfectant is selected, and the disinfectant is injected into the liquid storage barrel (10). Then, according to the scale of sewage treatment, water quality and disinfection requirements, the parameters of the online disinfectant dosing device are set, including dosing dosage, dosing frequency and dosing time; S3. The flow rate and water quality data of sewage are collected in real time through sensors, and the data are transmitted to the control system. The control system analyzes and processes the data in real time, determines the current sewage treatment situation and disinfection requirements, and calculates the required disinfectant dosage based on the water quality analysis results and disinfection requirements; S4, the control system automatically controls the work of the metering pump according to the calculated disinfectant dosage, and adds an appropriate amount of disinfectant into the sewage; S5. Continuously monitor the sewage quality after disinfection, detect the microbial content and residual chlorine content through sensors, determine whether the disinfection effect meets the requirements, and optimize and adjust the parameters of the online disinfectant dosing device according to the actual operation conditions and monitoring data to improve the system's operating efficiency and disinfection effect.

9. The method for online adding disinfectant for smart water management of a sewage treatment plant according to claim 8, characterized in that: The automatic control metering pump proposed in S4 means that the metering pump can adjust the dosing speed and dosage according to preset parameters or real-time feedback signals to ensure accurate and stable dosing of the disinfectant.

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