Electrolytic sodium hypochlorite generator with automatic salinity adjusting function

Abstract

The utility model discloses an electrolytic sodium hypochlorite generator with an automatic salinity adjusting function, and relates to the technical field. Comprising a generator body, a soft water inlet is formed in one side of the generator body, a salt dissolving box, a salt water metering pump, a flow meter, a salinity buffer tank and an electrolytic bath are arranged in the generator body, the soft water inlet is provided with two water outlet ends, the first water outlet end is connected to the salt dissolving box, and the second water outlet end is connected to the salinity buffer tank through the flow meter; a water outlet of the salt dissolving box is connected to a salinity buffer tank through a salt water metering pump, a salinity probe is arranged in the salinity buffer tank, a water outlet of the salinity buffer tank is connected to an electrolytic bath, a sodium hypochlorite outlet is formed in one side of the generator body, and a water outlet of the electrolytic bath is connected to the sodium hypochlorite outlet; a control system is further arranged in the generator, the signal input end of the control system is electrically connected with the salinity probe, and the signal output end of the control system is electrically connected with the saline water metering pump.

Description

Technical Field

[0001] This utility model relates to the technical field, specifically to an electrolytic sodium hypochlorite generator with an automatic salinity adjustment function. Background Technology

[0002] The device that generates sodium hypochlorite solution by electrolyzing brine is called a sodium hypochlorite generator. It has been proven to be a safe, reliable, low-cost, accurate, and highly effective disinfection device. Current electrolytic sodium hypochlorite generator technology involves passing tap water through a water softener to remove calcium and magnesium ions, producing softened water. This softened water then enters a salt dissolving tank to dissolve refined salt, creating saturated brine. The softened water and saturated brine are mixed using a flow meter to control their flow ratio, resulting in a dilute brine solution with a salinity of 2.5%–3%. This dilute brine is then fed into an electrolytic cell for electrolysis, producing a sodium hypochlorite concentration of 0.8%. However, this process suffers from low salt utilization. When the concentration of saturated brine in the salt dissolving tank is too high or too low, the flow meters for both softened water and saturated brine are not adjusted, leading to unstable dilute brine concentrations or concentrations below 2.5%. This affects the lifespan of the electrolytic cell and results in unstable sodium hypochlorite solution concentrations, severely impacting disinfection effectiveness and increasing operating costs. Utility Model Content

[0003] Therefore, this utility model provides an electrolytic sodium hypochlorite generator with automatic salinity adjustment function to solve the problems existing in the above-mentioned technology.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] An electrolytic sodium hypochlorite generator with automatic salinity adjustment function includes a generator body, which is a shell-shaped structure with an opening on one side. A soft water inlet is located on one side of the generator body. Inside the generator body are a salt dissolving tank, a brine metering pump, a flow meter, a salinity buffer tank, and an electrolytic cell. The soft water inlet has two outlets, a first outlet and a second outlet. The first outlet is connected to the salt dissolving tank, and the second outlet is connected to the salinity buffer tank via the flow meter. The outlet of the salt dissolving tank is connected to the salinity buffer tank via the brine metering pump. A salinity probe is installed inside the salinity buffer tank, and the outlet of the salinity buffer tank is connected to the electrolytic cell. A sodium hypochlorite outlet is located on one side of the generator body, and the outlet of the electrolytic cell is connected to the sodium hypochlorite outlet.

[0006] The generator is also equipped with a control system. The signal input terminal of the control system is electrically connected to the salinity probe, and the signal output terminal of the control system is electrically connected to the brine metering pump.

[0007] Optionally, a temperature probe is also provided in the electrolytic cell, and the temperature probe is electrically connected to the control system.

[0008] Optionally, a soft water inlet valve is provided on the soft water inlet pipe.

[0009] Optionally, a regulating valve is installed on the pipeline between the second water outlet and the flow meter.

[0010] Optionally, a one-way valve is installed on the pipeline between the salinity buffer tank and the electrolytic cell, so that the brine flows from one side of the salinity buffer tank to the other side of the electrolytic cell.

[0011] Optionally, a dispensing valve is installed on the pipeline between the electrolytic cell and the sodium hypochlorite outlet.

[0012] Optionally, the control system includes a PLC controller and a touch screen, the touch screen being electrically connected to the PLC controller, and the brine metering pump and salinity probe being electrically connected to the PLC controller.

[0013] This utility model has at least the following beneficial effects:

[0014] This invention establishes a control system electrically connected to a brine metering pump and a salinity probe within a salinity buffer tank. Soft water enters through the soft water inlet, then flows into a salt dissolving tank to dissolve the brine, and finally into the salinity buffer tank via a flow meter. The salinity probe detects the brine concentration in the buffer tank. Based on the salinity value provided by the control system, the brine metering pump draws brine from the salt dissolving tank into the salinity buffer tank. The salinity is then balanced in the buffer tank. The balanced brine then enters an electrolytic cell for electrolysis to produce sodium hypochlorite disinfectant. By automatically adjusting the brine concentration, the invention reduces equipment operation and maintenance costs and improves the disinfection effect of sodium hypochlorite. Attached Figure Description

[0015] To more clearly illustrate the prior art and the present invention, the accompanying drawings used in the description of the prior art and the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are merely exemplary, and those skilled in the art can derive other drawings from the provided drawings without any creative effort.

[0016] The structures, proportions, sizes, etc. illustrated in this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed herein, and are not intended to limit the conditions under which this utility model can be implemented. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0017] Figure 1 This is a first-view structural diagram of an embodiment of the present invention;

[0018] Figure 2 This is a process flow diagram of one embodiment of the present invention.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1. Soft water inlet; 2. Flow meter; 3. Salt dissolving tank; 4. Brine metering pump; 5. Salinity buffer tank; 6. Salinity probe; 7. Electrolytic cell; 8. Sodium hypochlorite outlet; 9. Temperature probe; 10. Touch screen; 11. Generator body. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0022] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. The terms "first," "second," "third," "fourth," etc. (if present), in the specification, claims, and accompanying drawings of this utility model are intended to distinguish the objects they refer to. For solutions with a sequential flow, this terminology need not be interpreted as describing a specific order or sequence; for solutions with device structures, this terminology does not distinguish between matters of importance or positional relationships.

[0023] Furthermore, the terms “comprising,” “having,” and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are expressly listed, but may also include other steps or units that are not expressly listed but are inherent to these processes, methods, products, or devices, or steps or units added based on further optimizations of the inventive concept.

[0024] like Figure 1 and Figure 2As shown, this utility model discloses an electrolytic sodium hypochlorite generator with automatic salinity adjustment function, comprising a generator body 11, which is a shell-shaped structure. One side of the generator body 11 has an opening (with a movable baffle). A soft water inlet 1 is provided on one side of the generator body 11. Inside the generator body 11 are a salt dissolving tank 3, a brine metering pump 4, a flow meter 2, a salinity buffer tank 5, and an electrolytic cell 7. The soft water inlet 1 has two... The water outlets are a first water outlet and a second water outlet. The first water outlet is connected to the salt dissolving tank 3, and the second water outlet is connected to the salinity buffer tank 5 through the flow meter 2. The water outlet of the salt dissolving tank 3 is connected to the salinity buffer tank 5 through the brine metering pump 4. A salinity probe 6 is installed inside the salinity buffer tank 5. The water outlet of the salinity buffer tank 5 is connected to the electrolytic cell 7. A sodium hypochlorite outlet 8 is provided on one side of the generator body 11, and the water outlet of the electrolytic cell 7 is connected to the sodium hypochlorite outlet 8.

[0025] The generator is also equipped with a control system. The signal input terminal of the control system is electrically connected to the salinity probe 6, and the signal output terminal of the control system is electrically connected to the brine metering pump 4.

[0026] The aforementioned generator body 11 adopts a conventional generator setup, internally housing a flow meter 2, a brine metering pump 4, a salinity buffer tank 5, a salt dissolving tank 3, and an electrolytic cell 7, all fixedly installed inside the generator body 11. A soft water inlet 1 is located on the external side of the generator body 11 for connecting to an external water source. The soft water inlet 1 is connected to a pipe inside the generator body 11, with a tee connector at the end of the pipe. The two outlets of the tee connector are the first outlet and the second outlet, respectively. The first outlet of the tee connector is connected to the salt dissolving tank 3, allowing soft water to pass through. Salt water is dissolved in the salt dissolving tank 3. The second outlet of the three-way connector is connected to the flow meter 2 through a pipe. The flow meter 2 is then connected to the salinity buffer tank 5 through a pipe. The outlet of the salt dissolving tank 3 is connected to the salt metering pump 4. The salt water in the salt dissolving tank 3 is transported to the salinity buffer tank 5 through the soft water metering pump. The salt water and soft water are mixed in the salinity buffer tank 5. After the mixing is completed, the salt water is transported to the electrolysis cell 7 for electrolysis to produce sodium hypochlorite solution. Then, a sodium hypochlorite outlet 8 is set on one side of the generator body 11 to connect to the electrolysis cell 7 and discharge the sodium hypochlorite solution.

[0027] To achieve automatic control, a control system is installed inside the generator body 11. The control system is electrically connected to the brine metering pump 4 and the salinity probe 6 in the salinity buffer tank 5. The control system presets the brine concentration and detects the brine concentration in the salinity buffer tank 5 through the salinity probe 6. Based on the concentration difference, the control system controls the brine metering pump 4 to operate, transporting the brine in the salt dissolving tank 3 to the salinity buffer tank 5 for mixing. Until the salinity probe 6 detects that the salinity in the salinity buffer tank 5 has reached the preset value, the control system controls the brine metering pump 4 to stop operating and closes the inlet valve of the flow meter 2. Then, the mixed brine in the salinity buffer tank 5 is transported to the electrolysis cell 7 for electrolysis.

[0028] The electrolytic cell 7 is also equipped with a temperature probe 9, which is electrically connected to the control system.

[0029] Temperature probe 9 is used to monitor the temperature inside electrolytic cell 7 in real time.

[0030] A soft water inlet valve is installed on the soft water inlet 1 pipeline.

[0031] A soft water inlet valve is installed on the soft water inlet 1 pipeline to facilitate control of the soft water input.

[0032] A regulating valve is installed on the pipeline between the second water outlet and the flow meter 2.

[0033] A regulating valve is installed on the pipeline upstream of flow meter 2 to control the disconnection of soft water delivery after the mixing is completed.

[0034] A one-way valve is installed on the pipeline between the salinity buffer tank 5 and the electrolytic cell 7, so that the brine flows from one side of the salinity buffer tank 5 to the other side of the electrolytic cell 7.

[0035] By installing a one-way valve between the salinity buffer tank 5 and the electrolytic cell 7, after the proportioning is completed, the one-way valve is opened, and the brine flows from the salinity buffer tank 5 into the electrolytic cell 7 for electrolysis, while preventing brine backflow.

[0036] A dispensing valve is installed on the pipeline between the electrolytic cell 7 and the sodium hypochlorite outlet 8.

[0037] By setting a discharge valve, the sodium hypochlorite solution that has been electrolyzed in the electrolytic cell 7 is opened after electrolysis is completed, allowing it to flow out.

[0038] The control system includes a PLC controller and a touch screen 10. The touch screen 10 is electrically connected to the PLC controller, and the brine metering pump 4 and the salinity probe 6 are both electrically connected to the PLC controller.

[0039] The saturated brine ratio is set to a dilute brine with a salinity of 2.5% to 3% by the PLC controller. When the salinity monitoring device detects that the brine concentration is lower than the set value, the PLC controller outputs a variable signal to the metering pump. The brine metering pump 4 automatically changes its operating frequency until the set salinity value is reached. The dilute brine with adjusted salinity is then sent into the electrolysis tank 7 for electrolysis to produce sodium hypochlorite disinfectant.

[0040] By setting the touch screen 10, the concentration of the brine can be preset on the touch screen 10, and the opening and closing of the device can be controlled. At the same time, the salinity and temperature can be displayed on the touch screen 10 in real time for easy observation.

[0041] The above specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments.

[0042] The technical features of the above embodiments can be combined in any way (as long as there is no contradiction in the combination of these technical features). For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described; these embodiments not explicitly written should also be considered to be within the scope of this specification.

[0043] The present invention has been described in a relatively specific and detailed manner above through general description and specific embodiments. It should be noted that, without departing from the concept of the present invention, various modifications and improvements can be made to these specific embodiments, all of which fall within the scope of protection of this application. Therefore, the scope of protection of this patent application should be determined by the appended claims.

Claims

1. An electrolytic sodium hypochlorite generator with automatic salinity adjustment function, comprising a generator body, the generator body is a shell structure, one side of the generator body is provided with an opening, characterized in that: The side of the generator body is provided with a soft water inlet, and the inside of the generator body is provided with a salt dissolving tank, a brine metering pump, a flow meter, a salinity buffer tank and an electrolytic cell. The control system is further provided in the generator, and a signal input end of the control system is electrically connected with the salinity probe.

2. The electrolytic sodium hypochlorite generator with automatic salinity adjustment function according to claim 1, characterized in that: The electrolytic cell is further provided with a temperature probe, and the temperature probe is electrically connected with the control system.

3. The electrolytic sodium hypochlorite generator with automatic salinity adjustment function according to claim 1, characterized in that: A soft water inlet valve is arranged on the pipeline of the soft water inlet.

4. The electrolytic sodium hypochlorite generator with automatic salinity adjustment function according to claim 1, characterized in that: An adjusting valve is arranged on the pipeline between the second water outlet and the flow meter.

5. The electrolytic sodium hypochlorite generator with automatic salinity adjustment function according to claim 1, characterized in that: A one-way valve is arranged on the pipeline between the salinity buffer tank and the electrolytic cell, and the brine flows from one side of the salinity buffer tank to one side of the electrolytic cell.

6. The electrolytic sodium hypochlorite generator with automatic salinity adjustment function according to claim 1, characterized in that: A medicine outlet valve is arranged on the pipeline between the electrolytic cell and the sodium hypochlorite outlet.

7. The electrolytic sodium hypochlorite generator with automatic salinity adjustment function according to claim 1, characterized in that: The control system comprises a PLC controller and a touch screen, the touch screen is electrically connected with the PLC controller, and the brine metering pump and the salinity probe are both electrically connected with the PLC controller.

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