A pressurized chlorination device and method for water supply networks with pneumatic assisted mixing function

Abstract

This invention discloses a pressurized chlorination device and method for water supply networks with pneumatically assisted mixing, relating to the field of chlorination technology for water supply networks. It includes a dosing unit, a blower-stirring unit, and an insertion pipe section. The dosing unit comprises a chemical tank, a dosing pump, a dosing guide pipe, and a dosing pipe. The dosing pump is fixed to one side of the outer circumference of the chemical tank, and the dosing guide pipe is connected to and fixed at the inlet pipe of the dosing pump. This invention solves the problems of low mixing efficiency, difficulty in ensuring disinfection effect, and easy concentration stratification and crystallization blockage of the chlorination agent during storage in the free diffusion chlorination method. Unlike the traditional chlorination method where the agent diffuses freely after dosing in the water supply network, this invention uses pressurized gas jet disturbance to accelerate the radial diffusion of agent molecules in the pressurized flow by utilizing the rupture shear force of microbubble clusters without additional mechanical stirring energy consumption or main pipeline head loss, thereby improving the applicability of the device.

Description

Technical Field

[0001] This invention relates to the field of chlorination technology for water supply networks, specifically to a pressurized chlorination device and method for water supply networks with pneumatic assisted mixing function. Background Technology

[0002] Chlorine dosing in water supply networks refers to the addition of chlorine disinfectant during the process of transporting tap water from the water plant to the user, either midway or at the end of the network. Essentially, it is a precise technology used to address the problem of substandard residual chlorine at the end of long-distance water supply systems.

[0003] Currently, the main chlorination technology used in water supply networks is free diffusion chlorination. This method involves adding a chlorine-based disinfectant (such as sodium hypochlorite solution or chlorine dioxide) to the flow meter or injection point in the water supply pipeline. The disinfectant gradually mixes along the water flow direction thanks to the turbulent diffusion and molecular diffusion of the water within the pipeline. This method has advantages such as simple equipment and no need for external power, making it the most widely used chlorination solution in engineering projects. However, free diffusion chlorination has low mixing efficiency, especially under pressure flow conditions in water supply networks (flow velocities typically between 0.5 and 2.0 liters per second). After injection, the agent mainly relies on axial water flow and turbulent pulsation for diffusion. Since the radial mixing intensity of the pipeline is much lower than that of axial convection, the agent molecules are distributed very unevenly on the radial cross section, resulting in a higher agent concentration in the central area of ​​the pipeline and a lower concentration near the pipe wall, forming a "plunger flow" distribution. A mixing distance of tens of times the pipe diameter is required to achieve a uniform cross section. For pipelines with many bends, short pipe sections, or multiple water intake points, it is difficult to guarantee the disinfection effect. At the same time, the agent is prone to concentration stratification during storage, which leads to fluctuations in the dosage concentration, uncontrolled residual chlorine in the pipeline network, and crystallization blockage, resulting in blockage of the outlet and damage to the dosing pump. This makes the use of the device somewhat inconvenient.

[0004] Therefore, a pressurized chlorination device and method for water supply networks with pneumatic assisted mixing function is needed to solve the problems of low mixing efficiency, difficulty in ensuring disinfection effect, and easy concentration stratification and crystallization blockage of the agent during storage in the existing free diffusion chlorination method. Summary of the Invention

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: A pressurized chlorination device for a water supply network with pneumatic assisted mixing function includes a dosing unit, a blower mixing unit, and an insertion pipe section; The dosing unit includes a medicine tank, a dosing pump, a dosing guide tube, and a dosing pipe. The dosing pump is fixed to one side of the outer circumference of the medicine tank. The dosing guide tube is connected to and fixed to the water inlet pipe of the dosing pump. The dosing pipe is connected to and fixed to the water outlet pipe of the dosing pump. The blower and agitator unit includes an air filter, an air compressor, a connecting pipe, an air inlet pipe, and a rotating cylinder. The air compressor is located on one side of the air filter. The connecting pipe is fixed in the middle of the air filter and the air compressor. The air filter and the air compressor are internally connected through the connecting pipe. The air inlet pipe is fixed in the middle of the air compressor. The insertion tube section includes a stirring tube, a drug injection tube, an injection probe, and an air outlet. The drug injection tube is fixed in the middle of the stirring tube. The injection probe is fixed at the bottom of the drug injection tube. The air outlets are evenly distributed on both sides of the outer circumference of the stirring tube. One end of the drug injection tube is fixed to the inner wall of the top of the drug injection tube and communicates with the inner cavity of the drug injection tube. One end of the air inlet tube is fixed to one side of the outer circumference of the stirring tube and communicates with the inner cavity of the stirring tube.

[0006] A further improvement of the technical solution of the present invention is that: the drug delivery tube and the connecting tube are made of PE material, the drug addition tube and the air inlet tube are made of stainless steel material, and the inner wall of the air inlet tube near the drug injection tube, the inner wall of the air inlet tube near the stirring tube and the inner wall of the air outlet are fixed with one-way valves for water backflow.

[0007] A further improvement of the technical solution of the present invention is that: an exhaust pipe is fixedly connected to one side of the top of the outer peripheral surface of the medicine tank, a breathing valve is fixed inside the exhaust pipe, and a liquid level gauge is fixed to one side of the inner peripheral surface of the medicine tank.

[0008] A further improvement of the technical solution of the present invention is that: a stirring assembly is connected to the surface of the medicine container, the stirring assembly includes a rotating tube, a sleeve plate, a rotating cylinder, a second gear ring, a third spur gear, and a driving component. The rotating tube is rotatably connected through the middle of the inner wall of the top of the medicine container. The sleeve plate is fixedly fitted at the bottom of the outer circumference of the rotating tube. The rotating cylinder is rotatably connected through the sleeve plate at one side. The third spur gear is fixedly fitted at the top of the outer circumference of the rotating cylinder. The second gear ring is fixed at the inner circumference of the medicine container near the third spur gear. The second gear ring and the third spur gear are meshed together. The driving component is connected to the rotating tube.

[0009] A further improvement of the technical solution of the present invention is that: the driving component includes a motor and a first spur gear. The motor is fixed at the top of the medicine container near the rotating tube. The first spur gear is fixedly sleeved at the output end of the motor and at the position of the rotating tube on the outer circumferential surface of the top of the medicine container. The two first spur gears are meshed together.

[0010] A further improvement of the technical solution of the present invention is that: the stirring assembly further includes a gear ring one, a spur gear two, a limiting groove, a limiting block, a guide wheel, a spring telescopic rod one, and a movable shaft. The gear ring one is fixed at the middle position of the top of the inner wall of the medicine container. The limiting groove is opened at the top of the medicine container at the outer position of the gear ring one. The limiting block is slidably inserted into the inner cavity of the limiting groove. The movable shaft is rotatably connected to the bottom position of the limiting block. The bottom of the movable shaft is rotatably connected to the bottom of the inner wall of the rotating cylinder. The guide wheel is located at one side of the limiting block. One side of the spring telescopic rod one is fixed to the surface of the guide wheel. The guide wheel is slidably inserted into the inner cavity of the limiting groove. The spur gear two is fixedly sleeved at the top position of the outer circumference of the movable shaft. The spur gear two and the gear ring one are meshed together.

[0011] A further improvement of the technical solution of the present invention is that: the stirring assembly further includes a fixed shaft, a stirring cutting block one, a rotating shaft, a stirring cutting block two, a bevel gear one, and a bevel gear two. The fixed shaft is uniformly fixed at both sides of the bottom of the outer circumference of the rotating cylinder. The stirring cutting block one is uniformly fixed at both ends of the outer circumference of the fixed shaft. The rotating shaft is rotatably connected to the outer circumference of the rotating cylinder at the middle position of the two fixed shafts. The stirring cutting blocks two are evenly distributed around the rotating shaft at equal intervals and fixed at the outer circumference of the rotating shaft. The bevel gear one is uniformly fixedly sleeved at the bottom of the outer circumference of the movable shaft. The bevel gear two is fixedly sleeved at the position of the rotating shaft located in the inner cavity of the rotating cylinder. The bevel gear one and two adjacent bevel gear two are meshed together.

[0012] A further improvement of the technical solution of the present invention is that: the stirring assembly further includes an exhaust component, which includes an air guide pipe, a rotating pipe, a connecting groove, an exhaust hole, a connecting cylinder, a sealing groove, a sealing ring, and a circular gear. The air guide pipe is fixed to one end of the outer circumference of the air inlet pipe. The connecting groove is opened on one side of the inner wall of the sleeve plate. The connecting cylinder is fixed to the other side of the sleeve plate. The rotating pipe is located at the bottom of the connecting cylinder. The inner cavity of the rotating pipe and the inner cavity of the connecting cylinder are connected through the connecting groove. The exhaust hole is uniformly spaced. The exhaust port is located on both sides of the bottom of the outer circumference of the rotating tube. A one-way valve is fixed inside the exhaust port. The sealing groove is located on the bottom surface of the air guide pipe and the connecting cylinder. The sealing ring is fixed at the top of the rotating tube and the adjacent sealing groove. The inner cavities of the rotating tube and the connecting cylinder are connected. The inner cavities of the air guide pipe and the rotating tube are connected. The fourth spur gear is fixedly sleeved at the top of the outer circumference of the rotating tube. The fourth spur gear and the second gear ring are meshed together.

[0013] A further improvement to the technical solution of this invention is that: the exhaust component further includes a movable plate, a piston rod, two spring telescopic rods, a first contact block, and a second contact block. The piston rod is slidably inserted at the top position of the connecting cylinder. The movable plate is fixed at the top position of the piston rod. The first contact block is fixed at the top position of the movable plate. The two second spring telescopic rods are fixed at the bottom position of the movable plate. The bottom of the second spring telescopic rod is fixed to the surface of the sleeve plate. Multiple second contact blocks are evenly fixed at the top of the inner wall of the medicine container near the limiting groove. The first and second contact blocks are hemispherical. A one-way valve is fixed at the connection between the connecting groove and the inner cavity of the connecting cylinder. A method for pressurized chlorination of a water supply network with pneumatic assisted mixing function includes the following steps: Includes the following steps: Step 1: Connect the injection probe of the inserted pipe section to the flow measurement port or injection port of the water supply network, and electrically connect the air filter, air compressor and dosing pump to the control unit and supply power accordingly; Step 2: Add chlorine supplement to the inside of the medicine tank and stir the chlorine supplement using the stirring component; Step 3: Start the air compressor and air filter. The air filter draws in outside air and filters it to remove particulate matter and microorganisms. The filtered clean air is then delivered to the air compressor through the connecting pipe. Step 4: The air compressor delivers compressed air through the air inlet pipe to the inner cavity of the mixing pipe for pneumatic mixing. The control unit monitors the water supply network pressure in real time and adjusts the air compressor's outlet pressure to dynamically follow the water supply network pressure and always be slightly higher than the network pressure. Step 5: The control unit starts the dosing pump. The dosing pump draws chlorine supplement from the tank through the dosing pipe. The supplement is delivered to the inner cavity of the injection pipe through the dosing pipe and enters the water supply network through the injection probe. Step 6: When the breather valve detects that the liquid level is lower than the set low limit, the control unit issues a low liquid level alarm signal. When the liquid level is lower than the ultra-low limit, the control unit forcibly stops the dosing pump to prevent it from running dry. When the exhaust pipe exhausts gas due to excessive pressure inside the tank, the control unit can adjust the intermittent operation of the air compressor or the speed of the stirring component to maintain the pressure balance inside the tank. Step 7: When the chlorination operation is completed or maintenance is required, the control unit stops the dosing pump, continues to run the air compressor and exhaust agitator for 1 second to purge residual chemicals from the pipeline, stops the air compressor and motor, and automatically balances the pressure in the chemical tank through the exhaust pipe to complete the shutdown.

[0014] Due to the adoption of the above technical solution, the technical progress achieved by this invention compared to the prior art is as follows: This invention utilizes a dosing unit, a blower-stirring unit, and an insertion pipe section to create a dual-pipeline structure consisting of a stirring pipe and a dosing pipe. The annular gap between the stirring pipe and the dosing pipe serves as the blower-stirring pipe. One-way valves at the air inlet, air outlet, and dosing pipe prevent backflow of water during dosing and stirring. This differs from traditional chlorination methods where the dosing agent diffuses freely after being added to the water supply network. This invention uses pressurized gas jet disturbance to accelerate the radial diffusion of drug molecules in the pressurized flow through the rupture shear force of microbubble clusters, without additional mechanical stirring energy consumption or main pipeline head loss, thereby improving the applicability of the device.

[0015] This invention, through its stirring assembly, facilitates thorough stirring of the medicine entering the inner cavity of the medicine container. The presence of stirring forces in multiple directions effectively enhances the stirring effect, forcing the medicine to form turbulent flow both vertically and horizontally within the container. This prevents the medicine from stratifying and crystallizing and clogging when stored statically inside the container for extended periods, thus promoting the normal operation of the device and improving its applicability.

[0016] This invention utilizes an exhaust component to provide thorough pneumatic agitation of the medicine entering the inner cavity of the medicine container. The gas discharged under the trajectory of the rotating tube forms a cluster of microbubbles. The shear force and wake effect generated when the bubbles rise can disperse agglomerates or localized high-concentration areas in the medicine. Furthermore, the breaking force of the bubbles generated by the exhaust can penetrate into gaps and corners that are difficult for mechanical stirring rods to reach. In addition, the exhaust gas can blow away or carry away the chlorine gas generated by the decomposition of sodium hypochlorite above the liquid surface, reducing corrosion and odor. Moreover, the exhaust agitation can destroy the thin layer of carbonate that easily reacts with CO2 on the surface of sodium hypochlorite solution, thereby further improving the applicability of the device. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the overall structure of the present invention; Figure 2 This is a three-dimensional cross-sectional view of the stirring tube in the present invention from the front view direction; Figure 3 In this invention Figure 2 Enlarged structural diagram at point A; Figure 4 This is a three-dimensional cross-sectional view of the medicine jar of the present invention; Figure 5 This is a three-dimensional structural diagram of the limiting block in this invention; Figure 6 This is a three-dimensional cross-sectional view of a local structure in this invention; Figure 7 In this invention Figure 6 Enlarged structural diagram at point B; Figure 8 In this invention Figure 6 Enlarged schematic diagram of the structure at point C; Figure 9 This is a schematic diagram of the three-dimensional structure of the medicine jar of the present invention from a bottom view. Figure 10 This is a schematic diagram illustrating the working principle of the present invention.

[0018] In the diagram: 1. Medicine container; 2. Stirring tube; 3. Air filter; 4. Air compressor; 5. Connecting pipe; 6. Injection pipe; 7. Injection probe; 8. Air inlet pipe; 9. Air outlet; 10. Dosing pump; 11. Drug delivery pipe; 12. Dosing pipe; 13. Air delivery pipe; 14. Rotating pipe; 15. Motor; 16. Circular gear one; 17. Sleeve plate; 18. Rotating cylinder; 19. Rotating pipe; 20. Gear ring one; 21. Circular gear two; 22. Limiting groove; 23. Gear ring two; 24. Circular gear three; 25. Limiting block; 26. 27. Guide wheel; 28. Spring telescopic rod one; 29. ​​Movable shaft; 30. Connecting groove; 31. Exhaust hole; 32. Fixed shaft; 33. Stirring and cutting block one; 34. Rotating shaft; 35. Stirring and cutting block two; 36. Bevel gear one; 37. Bevel gear two; 38. Connecting cylinder; 39. Movable plate; 40. Piston rod; 41. Spring telescopic rod two; 42. Sealing groove; 43. Sealing ring; 44. Abutting block one; 45. Abutting block two; 46. Level gauge; 47. Exhaust pipe; 48. Breathing valve; 49. Circular gear four. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to embodiments: Example 1, First aspect, such as Figures 1-10 As shown, the present invention provides a pressurized chlorination device for water supply networks with pneumatic assisted mixing function, including a dosing unit, a blower mixing unit and an insertion pipe section.

[0020] The dosing unit includes a medicine tank 1, a dosing pump 10, a dosing guide pipe 11, and a dosing pipe 12. The dosing pump 10 is fixed to one side of the outer circumference of the medicine tank 1. The dosing guide pipe 11 is connected to and fixed to the water inlet pipe of the dosing pump 10. The dosing pipe 12 is connected to and fixed to the water outlet pipe of the dosing pump 10.

[0021] The blower mixing unit includes an air filter 3, an air compressor 4, a connecting pipe 5, and a rotating drum 18. The air compressor 4 is located on one side of the air filter 3. The connecting pipe 5 is fixed in the middle of the air filter 3 and the air compressor 4. The air filter 3 and the air compressor 4 are internally connected through the connecting pipe 5. The air inlet pipe 8 is fixed in the middle of the air compressor 4. The drug delivery pipe 11 and the connecting pipe 5 are made of PE material, and the drug delivery pipe 12 and the air inlet pipe 8 are made of stainless steel.

[0022] The insertion section includes a stirring tube 2, a drug injection tube 6, an injection probe 7, and an air outlet 9. The drug injection tube 6 is fixed in the middle of the stirring tube 2. The injection probe 7 is fixed at the bottom of the drug injection tube 6. The air outlet 9 is evenly distributed on both sides of the outer circumference of the stirring tube 2. One end of the drug injection tube 12 is fixed to the inner wall of the top of the drug injection tube 6 and is connected to the inner cavity of the drug injection tube 6. One end of the air inlet tube 8 is fixed to one side of the outer circumference of the stirring tube 2 and is connected to the inner cavity of the stirring tube 2. One-way valves are fixed to the inner walls of the air inlet tube 8 near the drug injection tube 6, the inner walls of the air inlet tube 8 near the stirring tube 2, and the inner walls of the air outlet 9 for backflow prevention.

[0023] In practical use, the injection probe 7 is connected to the water supply network, and the air filter 3, air compressor 4, and dosing pump 10 are electrically connected to the external control unit. Then, the chlorine supplement is added to the inside of the tank 1 through the feed pipe. The dosing pump 10 is started by the control unit, allowing it to deliver the chlorine supplement to the inner cavity of the injection pipe 6 through the guide pipe 11 and dosing pipe 12, and then into the water supply network through the injection probe 7. The air filter 3 is started by the control unit to draw in and filter outside air, and then delivers the filtered air to the air compressor 4. The air compressor 4 delivers the air to the inside of the injection pipe 6 through the air inlet pipe 8, and discharges it from the air outlet 9. This allows the clean compressed air delivered by the air filter 3 and air compressor 4 to form microbubbles when discharged from the air outlet 9. The microbubble cluster utilizes the shear flow and eddies generated by the rising and bursting of bubbles in water to replace the mechanical agitator and perform the stirring function. The outlet pressure of the air filter 3 and air compressor 4 dynamically follows the water supply network pressure and is slightly higher than the network pressure. Since the stirring pipe 2 and the injection pipe 6 form a dual-pipe structure, the annular gap between the stirring pipe 2 and the injection pipe 6 is a blower-stirring pipe. The one-way valves set at the air inlet pipe 8, air outlet 9 and injection pipe 12 can prevent water backflow during the addition of chemicals and stirring. This is different from the traditional chlorination method where the chemicals diffuse freely after being added to the water supply network. This invention uses pressurized gas jet disturbance to accelerate the radial diffusion of chemical molecules in the pressurized flow by utilizing the bursting shear force of the microbubble cluster without additional mechanical stirring energy consumption or main pipeline head loss, thereby improving the applicability of the device.

[0024] An exhaust pipe 46 is fixedly connected to one side of the top of the outer circumference of the medicine tank 1. A breather valve 47 is fixed inside the exhaust pipe 46. A level gauge 45 is fixed to one side of the inner circumference of the medicine tank 1. By controlling the breather valve 47, sodium hypochlorite vapor can be intermittently discharged to the outside of the medicine tank 1, thereby realizing the function of depressurization and maintaining the pressure balance inside the tank. The level gauge 45 can monitor the amount of medicine and realize the function of low level alarm.

[0025] In Example 2, a second aspect, a stirring assembly is connected to the surface of the medicine container 1. The stirring assembly includes a rotating tube 14, a sleeve 17, a rotating cylinder 18, a gear ring 23, a spur gear 24, and a driving component. The rotating tube 14 is rotatably connected to the middle position of the inner wall of the top of the medicine container 1. The sleeve 17 is fixedly fitted at the bottom position of the outer circumference of the rotating tube 14. The rotating cylinder 18 is rotatably connected to one side of the sleeve 17. The spur gear 24 is fixedly fitted at the top position of the outer circumference of the rotating cylinder 18. The gear ring 23 is fixed to the inner circumference of the medicine container 1 near the spur gear 24. The gear ring 23 and the spur gear 24 are meshed together. The driving component is connected to the rotating tube 14.

[0026] The drive component enables the rotating tube 14 to rotate, thereby driving the sleeve 17 to rotate and causing the rotating cylinder 18 to make a circular motion. Thus, under the circular motion trajectory of the three circular gears 24 and the meshing action with the gear ring 23, the rotating cylinder 18 can make a circular motion while rotating on its own axis.

[0027] The driving component includes a motor 15 and a spur gear 16. The motor 15 is fixed at the top of the medicine container 1 near the rotating tube 14. The spur gear 16 is fixedly sleeved on the output end of the motor 15 and the outer circumferential surface of the rotating tube 14 at the top of the medicine container 1. The two spur gears 16 are meshed together. By starting the motor 15, one of the spur gears 16 is rotated, so that the rotating tube 14 can be rotated under the meshing action of the two spur gears 16.

[0028] The stirring assembly also includes a gear ring 20, a spur gear 21, a limiting groove 22, a limiting block 25, a guide wheel 26, a spring telescopic rod 27, and a movable shaft 28. The gear ring 20 is fixed at the middle position of the top of the inner wall of the medicine tank 1. The limiting groove 22 is opened at the top of the medicine tank 1, located outside the gear ring 20. The limiting block 25 is slidably inserted into the inner cavity of the limiting groove 22. The movable shaft 28 is rotatably connected to the bottom position of the limiting block 25. The bottom of the movable shaft 28 is rotatably connected to the bottom of the inner wall of the rotating cylinder 18. The guide wheel 26 is located on one side of the limiting block 25. One side of the spring telescopic rod 27 is fixed to the surface of the guide wheel 26. The guide wheel 26 is slidably inserted into the inner cavity of the limiting groove 22. The spur gear 21 is fixedly sleeved at the top position of the outer circumference of the movable shaft 28. The spur gear 21 and the gear ring 20 are meshed together.

[0029] When the rotating cylinder 18 makes a circular motion, it can drive the movable shaft 28 to make a circular motion. Thus, under the meshing action of the second gear 21 and the first gear ring 20, the movable shaft 28 can make a circular motion and rotate at the same time. During the circular motion, it is resisted by the limiting block 25 and the inner wall of the second gear 21, which can limit the movement trajectory of the movable shaft 28. Since the guide wheel 26 can slide with the inner cavity of the second gear 21, it can cause the spring telescopic rod 27 to contract when it encounters external vibration. Under the action of the rebound force of the spring telescopic rod 27, the vibration force is weakened, thereby further improving the stability of the movable shaft 28 during movement.

[0030] The stirring assembly also includes a fixed shaft 31, a stirring cutting block 32, a rotating shaft 33, a stirring cutting block 34, a bevel gear 35, and a bevel gear 36. The fixed shaft 31 is evenly fixed on both sides of the bottom of the outer circumference of the rotating cylinder 18. The stirring cutting block 32 is evenly fixed on both ends of the outer circumference of the fixed shaft 31. The rotating shaft 33 is rotatably connected to the outer circumference of the rotating cylinder 18 at the middle position between the two fixed shafts 31. The stirring cutting block 34 is evenly distributed around the rotating shaft 33 and fixed on the outer circumference of the rotating shaft 33. The bevel gear 35 is evenly fixedly sleeved on the bottom of the outer circumference of the movable shaft 28. The bevel gear 36 is fixedly sleeved on the rotating shaft 33 at the position inside the rotating cylinder 18. The bevel gear 35 and the two adjacent bevel gears 36 are meshed together.

[0031] When the movable shaft 28 rotates, the rotating shaft 33 is in a rotating state due to the meshing action of the first bevel gear 35 and the second bevel gear 36. The fixed shaft 31 can move along the movement trajectory of the rotating cylinder 18, and in conjunction with the stirring cutter 32, it can apply a horizontal cutting and stirring force to the liquid medicine entering the inner cavity of the medicine tank 1. When the rotating shaft 33 moves along the movement trajectory of the rotating cylinder 18, it can also have a vertical rotational movement trajectory, and in conjunction with the stirring cutter 34, it can apply a vertical cutting and stirring force to the liquid medicine entering the inner cavity of the medicine tank 1. The two mixing and cutting blocks 2 and 34 are set at acute angles on the surface along the cutting direction, which can reduce the stirring resistance when stirring the medicine entering the inner cavity of the medicine tank 1. This facilitates the thorough stirring of the medicine entering the inner cavity of the medicine tank 1. The presence of stirring forces in multiple directions effectively improves the stirring effect of the medicine, forcing the liquid to form turbulent flow in the medicine tank 1. This can prevent the medicine from stratifying and crystallizing and clogging when it is stored in the medicine tank 1 for a long time, thus promoting the normal operation of the device and improving its applicability.

[0032] In Example 3, the third aspect, the stirring assembly further includes an exhaust component, which includes an air guide pipe 13, a rotating pipe 19, a connecting groove 29, an exhaust port 30, a connecting cylinder 37, a sealing groove 41, a sealing ring 42, and a spur gear 48. The air guide pipe 13 is connected and fixed at one end of the outer circumference of the air inlet pipe 8. The connecting groove 29 is opened at one side of the inner wall of the sleeve plate 17. The connecting cylinder 37 is fixed through and fixed at the other side of the sleeve plate 17. The rotating pipe 19 is located at the bottom of the connecting cylinder 37. The inner cavity of the rotating pipe 19 and the inner cavity of the connecting cylinder 37 are connected through the connecting groove 29. The exhaust ports 30 are evenly spaced. One-way valves are fixed inside the exhaust holes 30 at both sides of the bottom of the outer circumference of the rotating tube 19. Sealing grooves 41 are opened at the bottom surface of the air guide tube 13 and the connecting cylinder 37. Sealing rings 42 are fixed at the top of the rotating tube 14 and the rotating tube 19. The sealing rings 42 and the adjacent sealing grooves 41 are slidably inserted and connected. The inner cavities of the rotating tube 19 and the connecting cylinder 37 are connected. The inner cavities of the air guide tube 13 and the rotating tube 14 are connected. Circular gear 48 is fixedly sleeved at the top of the outer circumference of the rotating tube 19. Circular gear 48 and gear ring 23 are meshed and connected.

[0033] The purified air discharged from the air compressor 4 can be delivered to the inner cavity of the rotating tube 14 through the air guide pipe 13, and then delivered to the inner cavity of the rotating tube 19 through the connecting groove 29 and the connecting cylinder 37. It can also be discharged from multiple exhaust holes 30, thus providing pneumatic stirring for the medicine entering the inner cavity of the medicine tank 1. Furthermore, the one-way valve inside the exhaust hole 30 prevents liquid from entering the inner cavity of the rotating tube 19 when the exhaust hole 30 is not venting. Simultaneously, the rotating tube 19 can rotate along the movement trajectory of the sleeve 17, and under the meshing action of the four circular gears 48 and the two gear rings 23, it can perform both circular and self-rotation motions, thereby providing sufficient pneumatic stirring for the medicine entering the inner cavity of the medicine tank 1. The gas discharged from the rotating tube 19 forms a cluster of microbubbles. The shear force and wake effect generated when the bubbles rise can disperse agglomerates or local high-concentration areas in the agent. The breaking force of the bubbles generated by the exhaust can penetrate into gaps and corners that are difficult for the mechanical stirring rod to reach. In addition, the exhaust gas can blow away or carry away the chlorine gas generated by the decomposition of sodium hypochlorite above the liquid surface, reducing corrosion and odor. The exhaust stirring can also destroy the thin layer of carbonate that easily reacts with CO2 on the surface of sodium hypochlorite solution. Thus, in combination with the mechanical stirring of the rotating cylinder 18, which dominates the main flow field, and the bubble stirring of the rotating tube 19, which fills the local dead zones, the combination of the two can achieve a relatively uniform concentration distribution throughout the tank, thereby further improving the applicability of the device.

[0034] The exhaust component also includes a movable plate 38, a piston rod 39, a second spring telescopic rod 40, a first contact block 43, and a second contact block 44. The piston rod 39 is slidably inserted at the top position of the connecting cylinder 37. The movable plate 38 is fixed at the top position of the piston rod 39. The first contact block 43 is fixed at the top position of the movable plate 38. The two second spring telescopic rods 40 are fixed at the bottom position of the movable plate 38. The bottom of the second spring telescopic rod 40 is fixed to the surface of the sleeve plate 17. Multiple second contact blocks 44 are evenly fixed at the top of the inner wall of the medicine tank 1 near the limiting groove 22. The first contact block 43 and the second contact block 44 are arranged in a hemispherical shape. A one-way valve is fixed at the connection between the connecting groove 29 and the inner cavity of the connecting cylinder 37.

[0035] When the sleeve 17 rotates, it drives the first contact block 43 to make a circular motion. The first contact block 43 can successively abut against the adjacent second contact block 44, thereby causing the movable plate 38 and the piston rod 39 to move vertically downward under the abutting force of the first contact block 43 and the second contact block 44. The vertical downward movement of the movable plate 38 will compress the second spring telescopic rod 40, causing it to deform. The vertical downward movement of the piston rod 39 will pressurize the gas in the inner cavity of the connecting cylinder 37, and the one-way valve set at the connection between the connecting groove 29 and the inner cavity of the connecting cylinder 37 will stop the flow of gas. Under the effect of the isolation, the gas compressed by the piston rod 39 will not flow into the inner cavity of the connecting groove 29, so that the gas in the inner cavity of the connecting cylinder 37 can be accelerated to the inside of the rotating tube 19 under the push of the piston rod 39, which is conducive to improving the use effect of the exhaust hole 30 for exhaust stirring. When the first contact block 43 separates from the second contact block 44, the movable plate 38 and the first contact block 43 can be reset under the action of the spring extension rod 40. When it contacts the other second contact block 44 again, it will move vertically downward again.

[0036] Example 4, fourth aspect, such as Figures 1-10 This invention provides a method for pressurized chlorination of a water supply network with pneumatic assisted mixing function, comprising the following steps: Step 1: Connect the injection probe 7 of the inserted pipe section to the flow measurement port or injection port of the water supply network, and electrically connect the air filter 3, air compressor 4 and dosing pump 10 to the control unit and supply power (the control unit here is a controller of the prior art, which can control the operation of the equipment in this invention). Step 2: Add chlorine supplement to the inside of medicine tank 1, and stir the chlorine supplement using the stirring component; Step 3: Start the air compressor 4 and air filter 3. The air filter 3 draws in outside air and filters it to remove particulate matter and microorganisms from the air. The filtered clean air is then delivered to the air compressor 4 through the connecting pipe 5. Step 4: The air compressor 4 delivers compressed air through the air inlet pipe 8 to the inner cavity of the mixing pipe 2 for pneumatic mixing. The control unit monitors the water supply network pressure in real time and adjusts the outlet pressure of the air compressor 4 so that it dynamically follows the water supply network pressure and is always slightly higher than the network pressure. Step 5: The control unit starts the dosing pump 10. The dosing pump 10 draws chlorine supplementing agent from the medicine tank 1 through the dosing pipe 11. The agent is delivered to the inner cavity of the injection pipe 6 through the dosing pipe 12 and enters the water supply network through the injection probe 7. Step 6: When the breather valve 47 detects that the liquid level is lower than the set low limit, the control unit sends a low liquid level alarm signal. When the liquid level is lower than the ultra-low limit, the control unit forcibly stops the dosing pump 10 to prevent it from running dry. When the exhaust pipe 46 exhausts gas due to excessive pressure in the tank, the control unit can adjust the intermittent operation of the air compressor 4 or the speed of the stirring component to maintain the pressure balance in the medicine tank 1. Step 7: When the chlorination operation is completed or maintenance is required, the control unit stops the dosing pump 10, continues to run the air compressor 4 and exhaust agitator for 30 to 60 seconds to purge residual agents in the pipeline, stops the air compressor 4 and motor 15, and automatically balances the pressure in the medicine tank 1 through the exhaust pipe 46 to complete the shutdown.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0038] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A pressurized chlorination device for a water supply network with pneumatic assisted mixing function, characterized in that: Includes a dosing unit, a blower-stirring unit, and an insertion tube section; The dosing unit includes a medicine tank (1), a dosing pump (10), a dosing guide pipe (11), and a dosing pipe (12). The dosing pump (10) is fixed on one side of the outer circumference of the medicine tank (1). The dosing guide pipe (11) is connected to and fixed at the water inlet pipe of the dosing pump (10). The dosing pipe (12) is connected to and fixed at the water outlet pipe of the dosing pump (10). The blower mixing unit includes an air filter (3), an air compressor (4), a connecting pipe (5), an air inlet pipe (8), and a rotating cylinder (18). The air compressor (4) is located on one side of the air filter (3). The connecting pipe (5) is fixed in the middle of the air filter (3) and the air compressor (4). The air filter (3) and the air compressor (4) are connected internally through the connecting pipe (5). The air inlet pipe (8) is fixed in the middle of the air compressor (4). The insertion tube section includes a stirring tube (2), a drug injection tube (6), an injection probe (7), and an air outlet (9). The drug injection tube (6) is fixed in the middle of the stirring tube (2). The injection probe (7) is fixed in the bottom of the drug injection tube (6). The air outlet (9) is evenly distributed on both sides of the outer circumference of the stirring tube (2). One end of the drug addition tube (12) is fixed to the inner wall of the top of the drug injection tube (6) and is connected to the inner cavity of the drug injection tube (6). One end of the air inlet tube (8) is fixed to one side of the outer circumference of the stirring tube (2) and is connected to the inner cavity of the stirring tube (2).

2. The pressurized chlorination device for a water supply network with pneumatic assisted mixing function according to claim 1, characterized in that: The drug delivery tube (11) and connecting tube (5) are made of PE material, the drug addition tube (12) and air inlet tube (8) are made of stainless steel material, and the inner wall of the air inlet tube (8) near the drug injection tube (6), the inner wall of the air inlet tube (8) near the stirring tube (2) and the inner wall of the air outlet (9) are fixed with one-way valves for water backflow.

3. A pressurized chlorination device for a water supply network with pneumatic assisted mixing function according to claim 1, characterized in that: An exhaust pipe (46) is fixedly connected to one side of the top of the outer peripheral surface of the medicine tank (1), a breathing valve (47) is fixed inside the exhaust pipe (46), and a level gauge (45) is fixed to one side of the inner peripheral surface of the medicine tank (1).

4. A pressurized chlorination device for a water supply network with pneumatic assisted mixing function according to claim 1, characterized in that: The surface of the medicine container (1) is connected to a stirring assembly, which includes a rotating tube (14), a sleeve plate (17), a rotating cylinder (18), a gear ring two (23), a spur gear three (24), and a driving component. The rotating tube (14) is rotatably connected to the middle position of the inner wall of the top of the medicine container (1). The sleeve plate (17) is fixedly sleeved at the bottom position of the outer circumference of the rotating tube (14). The rotating cylinder (18) is rotatably connected to one side of the sleeve plate (17). The spur gear three (24) is fixedly sleeved at the top position of the outer circumference of the rotating cylinder (18). The gear ring two (23) is fixed at the position of the inner circumference of the medicine container (1) near the spur gear three (24). The gear ring two (23) and the spur gear three (24) are meshed together. The driving component is connected to the rotating tube (14).

5. A pressurized chlorination device for a water supply network with pneumatic assisted mixing function according to claim 4, characterized in that: The driving component includes a motor (15) and a first spur gear (16). The motor (15) is fixed at the top of the medicine container (1) near the rotating tube (14). The first spur gear (16) is fixedly sleeved on the output end of the motor (15) and the outer circumferential surface of the rotating tube (14) at the top of the medicine container (1). The two first spur gears (16) are meshed together.

6. A pressurized chlorination device for a water supply network with pneumatic assisted mixing function according to claim 5, characterized in that: The stirring assembly also includes a gear ring (20), a spur gear (21), a limiting groove (22), a limiting block (25), a guide wheel (26), a spring telescopic rod (27), and a movable shaft (28). The gear ring (20) is fixed at the middle position of the top of the inner wall of the medicine container (1). The limiting groove (22) is opened at the top of the medicine container (1) at the outer position of the gear ring (20). The limiting block (25) is slidably inserted into the inner cavity of the limiting groove (22). The movable shaft (28) is rotatably connected to the limiting block (25). At the bottom position, the bottom of the movable shaft (28) is rotatably connected to the bottom of the inner wall of the rotating cylinder (18). The guide wheel (26) is located on one side of the limiting block (25). One side of the spring telescopic rod (27) is fixed to the surface of the guide wheel (26). The guide wheel (26) is slidably inserted into the inner cavity of the limiting groove (22). The second spur gear (21) is fixedly sleeved on the top position of the outer circumference of the movable shaft (28). The second spur gear (21) is meshed with the first gear ring (20).

7. A pressurized chlorination device for a water supply network with pneumatic assisted mixing function according to claim 6, characterized in that: The stirring assembly also includes a fixed shaft (31), a stirring cutting block one (32), a rotating shaft (33), a stirring cutting block two (34), a bevel gear one (35), and a bevel gear two (36). The fixed shaft (31) is evenly fixed at both sides of the bottom of the outer circumference of the rotating cylinder (18). The stirring cutting block one (32) is evenly fixed at both ends of the outer circumference of the fixed shaft (31). The rotating shaft (33) is rotatably connected to the outer circumference of the rotating cylinder (18) at two fixed positions. At the middle position of the shaft (31), the stirring and cutting blocks (34) are evenly distributed around the rotating shaft (33) and fixed on the outer circumferential surface. The first bevel gear (35) is evenly fixedly sleeved on the bottom position of the outer circumferential surface of the movable shaft (28). The second bevel gear (36) is fixedly sleeved on the rotating shaft (33) at the position of the inner cavity of the rotating cylinder (18). The first bevel gear (35) and the two adjacent bevel gears (36) are meshed and connected.

8. A pressurized chlorination device for a water supply network with pneumatic assisted mixing function according to claim 6, characterized in that: The stirring assembly also includes an exhaust component, which includes an air guide pipe (13), a rotating pipe (19), a connecting groove (29), an exhaust hole (30), a connecting cylinder (37), a sealing groove (41), a sealing ring (42), and a spur gear (48). The air guide pipe (13) is fixed to one end of the outer circumference of the air inlet pipe (8). The connecting groove (29) is located on one side of the inner wall of the sleeve plate (17). The connecting cylinder (37) is fixed to the other side of the sleeve plate (17). The rotating pipe (19) is located at the bottom of the connecting cylinder (37). The inner cavity of the rotating pipe (14) and the inner cavity of the connecting cylinder (37) are connected through the connecting groove (29). The exhaust holes (30) are evenly distributed on the rotating pipe. At the bottom of the outer circumference of the tube (19), a one-way valve is fixed inside the exhaust hole (30). The sealing groove (41) is opened at the bottom surface of the air guide tube (13) and the connecting cylinder (37). The sealing ring (42) is fixed at the top of the rotating tube (14) and the rotating tube (19). The sealing ring (42) and the adjacent sealing groove (41) are slidably inserted and connected. The inner cavity of the rotating tube (19) and the connecting cylinder (37) are connected. The inner cavity of the air guide tube (13) and the rotating tube (14) are connected. The fourth spur gear (48) is fixedly sleeved at the top of the outer circumference of the rotating tube (19). The fourth spur gear (48) and the second gear ring (23) are meshed and connected.

9. A pressurized chlorination device for a water supply network with pneumatic assisted mixing function according to claim 8, characterized in that: The exhaust component also includes a movable plate (38), a piston rod (39), a second spring telescopic rod (40), a first contact block (43), and a second contact block (44). The piston rod (39) is slidably inserted at the top of the connecting cylinder (37). The movable plate (38) is fixed at the top of the piston rod (39). The first contact block (43) is fixed at the top of the movable plate (38). The two second spring telescopic rods (40) are fixed at the bottom of the movable plate (38). The bottom of the second spring telescopic rod (40) is fixed to the surface of the sleeve plate (17). The multiple second contact blocks (44) are evenly fixed at the top of the inner wall of the medicine tank (1) near the limiting groove (22). The first contact block (43) and the second contact block (44) are hemispherical. A one-way valve is fixed at the connection between the connecting groove (29) and the inner cavity of the connecting cylinder (37).

10. A method for pressurized chlorination of a water supply network with pneumatic assisted mixing function, comprising a pressurized chlorination device for a water supply network with pneumatic assisted mixing function as described in any one of claims 1-9, characterized in that: Includes the following steps: Step 1: Connect the injection probe (7) of the inserted pipe section to the flow measurement port or injection port of the water supply network, and connect the air filter (3), air compressor (4) and dosing pump (10) to the control unit and supply them with power. Step 2: Add chlorine supplement to the inside of the medicine tank (1) and stir the chlorine supplement using the stirring assembly; Step 3: Start the air compressor (4) and air filter (3). The air filter (3) draws in outside air and filters it to remove particulate matter and microorganisms from the air. The filtered clean air is then delivered to the air compressor (4) through the connecting pipe (5). Step 4: The air compressor (4) delivers compressed air through the air inlet pipe (8) to the inner cavity of the mixing pipe (2) for pneumatic mixing. The control unit monitors the water supply network pressure in real time and adjusts the outlet pressure of the air compressor (4) so ​​that it dynamically follows the water supply network pressure and is always slightly higher than the network pressure. Step 5: The control unit starts the dosing pump (10). The dosing pump (10) draws chlorine supplement from the medicine tank (1) through the dosing pipe (11). The medicine is delivered to the inner cavity of the injection pipe (6) through the dosing pipe (12) and enters the water supply network from the injection probe (7). Step 6: When the breathing valve (47) detects that the liquid level is lower than the set low limit, the control unit sends a low liquid level alarm signal. When the liquid level is lower than the ultra-low limit, the control unit forcibly stops the dosing pump (10) to prevent dry running. When the exhaust pipe (46) exhausts due to excessive pressure in the tank, the control unit can adjust the intermittent operation of the air compressor (4) or the speed of the stirring component to maintain the pressure balance in the medicine tank (1). Step 7: When the chlorination operation is completed or maintenance is required, the control unit stops the dosing pump (10), continues to run the air compressor (4) and exhaust stirring for 30 to 60 seconds to purge the residual agent in the pipeline, stops the air compressor (4) and motor (15), and automatically balances the pressure in the medicine tank (1) through the exhaust pipe (46) to complete the shutdown.

Images