Automatic metering sodium hypochlorite dosing device

Abstract

According to the sodium hypochlorite dosing device with the automatic metering function, the flow rate of sodium hypochlorite flowing to the dosing pipeline from the device body is obtained through the flow meter, and the operation frequency of the metering pump is controlled according to the obtained flow rate of sodium hypochlorite, so that the dosing amount can be flexibly adjusted according to the actual sewage quantity, waste of liquid medicine is avoided, and the operation efficiency is improved. And the maximization of the dosing effect is ensured. Meanwhile, the liquid level meter is arranged to monitor the liquid level of the solution in real time and ensure the continuity and stability of the dosing process, and components such as the first valve module, the second valve module, the Y-shaped filter and the dosing flowmeter are arranged on the dosing pipeline, so that the purity of the liquid medicine and the accuracy of flow control are ensured, and later maintenance and troubleshooting are facilitated. In addition, due to the arrangement of the pulse damper, impact and fluctuation of the medicine liquid in the pipeline can be effectively reduced, and the stability and reliability of medicine conveying are further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water treatment, in particular to an automatic metering sodium hypochlorite dosing device. Background Art

[0002] Sodium hypochlorite dosing devices are widely used in various water treatment systems. Their core function is to disinfect and sterilize water by adding sodium hypochlorite solution. The dissolution and reaction of sodium hypochlorite (NaClO) in water produces hypochlorous acid (HOCl) and hypochlorite ions (OCl-). These two substances possess powerful oxidizing properties and can effectively kill bacteria, viruses, and other microorganisms in water, thereby ensuring water safety and sanitation.

[0003] However, during the water treatment process, water quality changes from time to time, and the amount of sodium hypochlorite required varies. Excessive dosing can lead to deterioration of water quality and damage to equipment, while insufficient dosing can result in incomplete water treatment. Therefore, it is necessary to use an automatic metering sodium hypochlorite dosing device to accurately control the dosage. Utility Model Content

[0004] Aiming at the technical problem in the prior art that water quality changes from time to time during water treatment, which makes it difficult to control the amount of sodium hypochlorite solution added, the utility model provides an automatic metering sodium hypochlorite dosing device.

[0005] An automatic metering sodium hypochlorite dosing device comprises a device body filled with sodium hypochlorite solution and a controller; a level gauge for measuring the liquid level of the sodium hypochlorite solution in the device body is provided on one side of the device body; a dosing pipe connected to a dosing point is provided on the device body, and a first valve module, a Y-type filter, a dosing flow meter, a first manual ball valve, a metering pump, a pulse damper and a second valve module are provided on the dosing pipe in a direction away from the device body; the Y-type filter is used to filter impurities in the sodium hypochlorite solution; the first manual ball valve ... Used to manually control the opening of the dosing pipeline; the pulse damper is used to smooth the pulses and vibrations of the sodium hypochlorite solution pumped into the dosing pipeline by the metering pump; the first valve module, the dosing flow meter, the metering pump, and the second valve module are electrically connected to the controller respectively; the dosing flow meter is used to monitor the flow of the sodium hypochlorite solution flowing through the dosing pipeline and transmit the flow data to the controller; the controller is used to control the opening and closing of the first valve module and the second valve module, and control the operating frequency of the metering pump according to the flow data, so that the amount of sodium hypochlorite solution added matches the amount of sewage water. Furthermore, the device body includes a tank body and a tank cover, the tank body has an opening on the top, the tank cover is embedded in the opening on the top of the tank body, and can be detachably installed on the tank body.

[0006] Furthermore, the tank cover is provided with a water inlet pipe and a liquid inlet pipe, and the water inlet pipe is provided with a water inlet flowmeter and a water inlet solenoid valve electrically connected to the controller; the liquid inlet pipe is provided with a liquid inlet flowmeter and a liquid inlet solenoid valve electrically connected to the controller, and the liquid inlet pipe is connected to the sodium chlorate stock liquid tank.

[0007] Furthermore, a stirring port is provided on the device body, and the stirring mechanism includes a stirring motor arranged on the stirring port and a stirring blade arranged in the device body; the stirring motor is electrically connected to the controller, and the rotating shaft of the stirring motor extends into the interior of the device body through the stirring port, and the stirring blade is arranged on the rotating shaft.

[0008] Furthermore, the first valve module includes a first electric ball valve and a second manual ball valve sequentially arranged on the dosing pipeline.

[0009] Furthermore, the second valve module includes a check valve, a second electric ball valve, a back pressure valve, and a safety valve which are sequentially arranged on the dosing pipeline.

[0010] Furthermore, the liquid level gauge is a magnetic flap liquid level gauge; and the metering pump is an electromagnetic diaphragm metering pump.

[0011] Furthermore, a drain pipe is provided at the bottom of the device body, and a drain solenoid valve is provided on the drain pipe.

[0012] The beneficial effects of the present invention are as follows: the present invention provides an automatic metering sodium hypochlorite dosing device, which obtains the sodium hypochlorite flow rate flowing from the device body to the dosing pipe through a flow meter and controls the operating frequency of the metering pump according to the obtained sodium hypochlorite flow rate, so that the dosing amount can be flexibly adjusted according to the actual sewage water volume, which not only avoids the waste of liquid medicine, but also ensures the maximization of the dosing effect. At the same time, by setting the liquid level meter, the device can monitor the solution level in real time to ensure the continuity and stability of the dosing process, and the first and second valve modules, Y-type filters, dosing flow meters and other components set on the dosing pipe not only ensure the purity of the liquid medicine and the accuracy of flow control, but also facilitate subsequent maintenance and troubleshooting. In addition, the setting of the pulse damper can effectively reduce the impact and fluctuation of the liquid medicine in the pipeline, further improving the stability and reliability of the drug delivery. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The present invention provides a schematic structural diagram of an automatic metering sodium hypochlorite dosing device.

[0014] Figure ID

[0015] 1. Device body; 101. Tank cover; 1011. Water inlet pipe; 111. Water inlet flowmeter; 112. Water inlet solenoid valve; 1012. Liquid inlet pipe; 113. Liquid inlet flowmeter; 114. Liquid inlet solenoid valve; 102. Tank body; 2. Liquid level gauge; 3. Dosing pipe; 4. First valve module; 41. First electric ball valve; 42. Second manual ball valve; 5. Y-type filter; 6. Dosing flowmeter; 7. First manual ball valve; 8. Metering pump; 9. Pulse damper; 10. Second valve module; 11. Sodium hypochlorite stock liquid tank; 12. Stirring mechanism; 121. Stirring motor; 1211. Rotating shaft; 122. Stirring blade; 13. Check valve; 14. Second electric ball valve; 15. Back pressure valve; 16. Safety valve. DETAILED DESCRIPTION

[0016] To further illustrate the present invention, the following description is provided with reference to the accompanying drawings. It should be noted that the embodiments described below represent only a portion of the present invention, and not all of its embodiments. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0017] refer to Figure 1 As shown, an automatic metering sodium hypochlorite dosing device includes a device body 1 filled with sodium hypochlorite solution and a controller (not shown in the figure).

[0018] Specifically, the device body 1 includes a tank body 101 and a tank cover 102. The tank body 101 has an opening at the top. The tank cover 102 is engaged with the opening at the top of the tank body 101 and is detachably mounted on the tank body 101, making it easy to clean or repair the interior of the tank body 101. The prepared sodium hypochlorite solution can also be directly introduced into the tank body 101. In this embodiment, the tank cover 102 is fixed to the tank body 101 by fixing bolts.

[0019] The tank cover 101 is provided with a water inlet pipe 1011 and a liquid inlet pipe 1012. The water inlet pipe 1011 is provided with a water inlet flowmeter 111 and a water inlet solenoid valve 112 electrically connected to the controller; the liquid inlet pipe 1012 is provided with a liquid inlet flowmeter 113 and a liquid inlet solenoid valve 114 electrically connected to the controller, and the liquid inlet pipe 1012 is connected to the sodium hypochlorite stock liquid tank 11.

[0020] Before introducing the sodium hypochlorite stock solution into the sewage, it is often necessary to dilute the sodium hypochlorite stock solution to obtain the sodium hypochlorite solution. The controller opens and closes the water inlet solenoid valve 113 and the liquid inlet solenoid valve 114 to allow the addition of water and the sodium hypochlorite stock solution. The water inlet flowmeter 111 and the liquid inlet flowmeter 113 precisely control the water inlet and the sodium hypochlorite inlet, thereby accurately adjusting the mixing ratio, ensuring that the resulting sodium hypochlorite solution concentration meets the requirements, and improving the use effect of the solution.

[0021] In which, the device body 1 is provided with a stirring port, and the stirring port is provided with a stirring mechanism 12, and the stirring mechanism 12 includes a stirring motor 121 arranged on the stirring port and a stirring blade 122 arranged in the device body 1; the stirring motor 121 is electrically connected to the controller, and the rotating shaft 1211 of the stirring motor 121 extends into the interior of the device body 1 through the stirring port, and the stirring blade 122 is arranged on the rotating shaft 1211.

[0022] When preparing a sodium hypochlorite solution, water and a sodium hypochlorite stock solution are introduced into the device body 1, and the controller activates the stirring motor 121. As the stirring motor 121 rotates, the stirring blades 122 efficiently stir the solution, allowing the water and sodium hypochlorite stock solution to mix thoroughly and form a uniform sodium hypochlorite solution. This stirring not only improves the mixing efficiency of the solution but also ensures its uniformity and stability, facilitating the accurate calculation of the dosage of the sodium hypochlorite solution.

[0023] The bottom of the device body 1 is provided with a drain pipe (not shown in the figure), and the drain pipe is provided with a drain solenoid valve (not shown in the figure). Water can be introduced into the device body 1 through the water inlet pipe to clean the fluid in the device body 1 and then discharged through the drain pipe.

[0024] A level gauge 2 for measuring the liquid level of the sodium hypochlorite solution in the device body 1 is provided on one side of the device body 1, and the level gauge 2 is electrically connected to the controller. Through the provision of the level gauge 2, the controller can accurately receive the liquid level of the sodium hypochlorite solution in the device body 1 measured by the level gauge 2 in real time, promptly detect the situation where the liquid level is too high or too low, and promptly replenish or stop replenishing the sodium hypochlorite solution in the device body 1, thereby avoiding interruption of dosing due to drying up of the solution or preventing waste or environmental pollution caused by overflow of the solution, thereby ensuring the continuity and stability of the dosing process. In this embodiment, the level gauge 3 is a magnetic flap level gauge.

[0025] The device body 1 is provided with a dosing pipe 3 connected to the dosing point, and the dosing pipe 3 is provided with a first valve module 4, a Y-type filter 5, a dosing flow meter 6, a first manual ball valve 7, a metering pump 8, a pulse damper 9 and a second valve module 10 in sequence along the direction away from the device body 1; the first valve module 4, the dosing flow meter 6, the metering pump 8, and the second valve module 10 are electrically connected to the controller respectively.

[0026] In this embodiment, the dosing point is a disinfection tank filled with sewage. The first valve module 4 includes a first electric ball valve 41 and a second manual ball valve 42, which are sequentially arranged on the dosing pipe 3. The second valve module 10 includes a check valve 13, a second electric ball valve 14, a back pressure valve 15, and a safety valve 16, which are sequentially arranged on the dosing pipe 3.

[0027] The first electric ball valve 41 and the second electric ball valve 14 have a remote control function. The controller can remotely open or close the first electric ball valve 41 and the second electric ball valve 14 to achieve precise control of the dosing flow rate. The back pressure valve 15 can stabilize the pressure in the dosing pipeline 3, ensuring that the flow rate of the sodium hypochlorite solution is stable and not affected by external factors, thereby improving the accuracy and stability of the dosing process. The safety valve 16 can monitor the pressure in the dosing pipeline 3 and automatically release the pressure when the pressure exceeds the preset value, thereby protecting the system from damage, helping to ensure that the dosing device operates within a safe pressure range, and preventing equipment failure or accidents caused by overpressure.

[0028] The Y-type filter 5 is used to filter impurities in the sodium hypochlorite solution. The Y-type filter can effectively filter out impurities that may be present in the sodium hypochlorite solution, such as particulate matter and suspended solids, to ensure the purity of the solution. This prevents impurities from clogging or abrading the metering pump 8, the dosing pipe 3, and the like.

[0029] The first manual ball valve 7 is used to manually control the opening of the dosing pipe 3, so that the operator can quickly adjust the dosage according to the actual situation to meet different treatment requirements; in an emergency, such as leakage of sodium hypochlorite solution or rupture of the dosing pipe 3, the operator can quickly cut off the dosing process by closing the first manual ball valve 7 to ensure safety.

[0030] In this embodiment, the first manual ball valve 7 cooperates with the second manual ball valve 42 to manually control the opening of the dosing pipeline 3 before and after the dosing flowmeter 6. When necessary, by fine-tuning the opening of the two manual ball valves, the dosing flow rate can be made more stable, avoiding the impact of flow fluctuations on the treatment effect. The pulse damper 9 is used to smooth the pulses and vibrations of the sodium hypochlorite solution pumped into the dosing pipeline 3 by the metering pump 8, ensuring the smooth flow of the solution, helping to reduce wear and leakage risks on the dosing pipeline 3, and protecting the equipment on the dosing pipeline 3 through which the solution flows.

[0031] The dosing flowmeter 6 is used to monitor the flow rate of the sodium hypochlorite solution flowing through the dosing pipeline 3 and transmit the flow rate data to the controller. The controller is used to control the opening and closing of the first valve module 4 and the second valve module 10, and to control the operating frequency of the metering pump based on the flow rate data, so that the amount of sodium hypochlorite solution added matches the amount of sewage. In this embodiment, the metering pump 8 is an electromagnetic diaphragm metering pump.

[0032] When the sodium hypochlorite solution flows through the dosing pipe 3, the dosing flowmeter 6 monitors its flow in real time and converts the measurement results into electrical signals and transmits them to the controller. After receiving the electrical signal and obtaining the flow data, the controller will perform real-time processing and analysis. Based on the preset algorithm and logic, combined with the demand for sodium hypochlorite solution by the sewage volume, it calculates the amount of sodium hypochlorite solution required for the current sewage volume. Furthermore, the controller adjusts the operating frequency of the metering pump 5 according to the calculated amount of sodium hypochlorite solution to be added. By accurately controlling the operating frequency of the metering pump 8, it can ensure that the amount of sodium hypochlorite solution added matches the amount of sewage water to be treated, thereby achieving the best disinfection and oxidation effect.

[0033] Throughout the dosing process, the controller continuously receives feedback from dosing flowmeter 6 and automatically fine-tunes the operating frequency of metering pump 8 based on actual conditions to determine whether the current flow rate of the cleaning agent meets the set requirements. If the current flow rate data is lower than the set value, the control system increases the operating frequency of metering pump 8 to increase the delivery rate; if the current flow rate data is higher than the set value, the operating frequency of metering pump 8 is reduced to reduce the delivery rate. This ensures that the amount of sodium hypochlorite solution added to cleaning agent storage tank 203 during the dosing process matches the amount of wastewater to be treated, thereby improving treatment efficiency and effluent quality.

[0034] Preferably, the controller obtains the water inlet volume and the sodium hypochlorite inlet volume through the water inlet flowmeter 111 and the liquid inlet flowmeter 113, thereby adjusting the mixing ratio of the sodium hypochlorite stock solution and water to obtain the precise concentration of the sodium hypochlorite solution; and then, the volume of the sodium hypochlorite solution required for the corresponding sewage volume can be calculated based on the sodium hypochlorite concentration, the feedback data of the dosing flowmeter 6, and the sewage treatment demand, thereby accurately controlling the operating frequency of the metering pump 8 to ensure that the amount of sodium hypochlorite solution added matches the amount of sewage to be treated.

[0035] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention and are not intended to limit the present invention to the specific embodiments described. Obviously, other modifications and variations may be made based on the contents of this specification. The embodiments selected and specifically described in this specification are intended to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. They are not intended to limit the present invention, and any simple variations of the present invention fall within the scope of protection of the present invention.

Claims

1. An automatic metering sodium hypochlorite dosing device, characterized in that: The device comprises a device body filled with sodium hypochlorite solution and a controller; A level gauge for measuring the level of the sodium hypochlorite solution in the device body is provided on one side of the device body; a dosing pipe connected to the dosing point is provided on the device body, and a first valve module, a Y-type filter, a dosing flow meter, a first manual ball valve, a metering pump, a pulse damper, and a second valve module are provided on the dosing pipe in a direction away from the device body; the Y-type filter is used to filter impurities in the sodium hypochlorite solution; the first manual ball valve is used to manually control the opening of the dosing pipe; and the pulse damper is used to smooth the pulses and vibrations of the sodium hypochlorite solution pumped into the dosing pipe by the metering pump. The first valve module, dosing flow meter, metering pump, and second valve module are electrically connected to the controller respectively; the dosing flow meter is used to monitor the flow of sodium hypochlorite solution flowing through the dosing pipeline and transmit the flow data to the controller; the controller is used to control the opening and closing of the first valve module and the second valve module, and control the operating frequency of the metering pump according to the flow data, so that the amount of sodium hypochlorite solution added matches the amount of sewage.

2. An automatic metering sodium hypochlorite dosing device according to claim 1, characterized in that: The device body comprises a tank body and a tank cover. The tank body is provided with an opening on the top. The tank cover is engaged with the opening on the top of the tank body and can be detachably mounted on the tank body.

3. An automatic metering sodium hypochlorite dosing device according to claim 2, characterized in that: The tank cover is provided with a water inlet pipe and a liquid inlet pipe, and the water inlet pipe is provided with a water inlet flowmeter and a water inlet solenoid valve electrically connected to the controller; the liquid inlet pipe is provided with a liquid inlet flowmeter and a liquid inlet solenoid valve electrically connected to the controller, and the liquid inlet pipe is connected to the sodium chlorate stock liquid tank.

4. An automatic metering sodium hypochlorite dosing device according to claim 3, characterized in that: The device body is provided with a stirring port, and the stirring port is provided with a stirring mechanism. The stirring mechanism includes a stirring motor arranged on the stirring port and a stirring blade arranged in the device body; the stirring motor is electrically connected to the controller, and the rotating shaft of the stirring motor extends into the interior of the device body through the stirring port, and the stirring blade is arranged on the rotating shaft.

5. The automatic metering sodium hypochlorite dosing device according to claim 1, characterized in that: The first valve module includes a first electric ball valve and a second manual ball valve which are sequentially arranged on the dosing pipeline.

6. The automatic metering sodium hypochlorite dosing device according to claim 1, characterized in that: The second valve module includes a check valve, a second electric ball valve, a back pressure valve, and a safety valve which are sequentially arranged on the dosing pipeline.

7. The automatic metering sodium hypochlorite dosing device according to claim 1, characterized in that: The liquid level gauge is a magnetic flap liquid level gauge; the metering pump is an electromagnetic diaphragm metering pump.

8. The automatic metering sodium hypochlorite dosing device according to claim 1, characterized in that: A drainage pipe is provided at the bottom of the device body, and a drainage solenoid valve is provided on the drainage pipe.

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