An automatic residual chlorine monitor in water

Abstract

This invention relates to an automatic residual chlorine monitor in water, belonging to the field of residual chlorine monitoring technology. The automatic residual chlorine monitor includes a flow tank, with an inlet pipe on one side and an outlet pipe on the other side. A residual chlorine electrode is vertically positioned at the center of the inner side of the flow tank. An electromagnetic lifting assembly is movably mounted on the outer side of the residual chlorine electrode. The electromagnetic lifting assembly includes a ring magnet movably mounted on the outer side of the residual chlorine electrode. An electromagnet is fixedly mounted at the bottom of the flow tank below the ring magnet. Several fixing sleeves are fixedly mounted on the outer side of the ring magnet. A ring-shaped brushing assembly is located inside the electromagnetic lifting assembly, and a driving assembly is located outside the electromagnetic lifting assembly. Several water spraying mechanisms that spray water onto the driving assembly are located on the sidewall of the flow tank. This invention enables both routine and deep cleaning of the residual chlorine electrode.

Description

Technical Field

[0001] This invention belongs to the field of residual chlorine monitoring technology, specifically relating to an automatic residual chlorine monitor in water. Background Technology

[0002] In urban water supply systems, residual chlorine is a crucial indicator of water quality safety. Chlorine disinfection is widely used in water treatment processes to kill pathogenic microorganisms and prevent secondary contamination in the pipe network. However, residual chlorine in the water supply system needs to be maintained within a reasonable range. Too low a residual chlorine level increases the risk of microbial growth, while too high a level may lead to an increase in disinfection byproducts. Therefore, real-time and accurate monitoring of residual chlorine ensures continuous and effective disinfection in the water supply system, prevents the risk of microbial contamination, and helps water treatment plants optimize chlorination programs, which is vital for ensuring drinking water safety.

[0003] For example, in the Chinese utility model patent with announcement number CN216816649U entitled "A Monitoring Device", it specifically includes a turbidity meter 1PT, a residual chlorine meter 2PT, a pH meter 3PT, a PLC controller, and a display screen HMI. The turbidity meter 1PT, residual chlorine meter 2PT, and pH meter 3PT are respectively connected to the PLC controller, and the PLC controller is connected to the display screen HMI. Although the above-mentioned prior art can monitor the residual chlorine in water, the residual chlorine electrode of the residual chlorine monitor is immersed in water for a long time, and dirt is easily attached to its surface. If it is not cleaned, it can affect the measurement accuracy and may shorten the life of the electrode. Summary of the Invention

[0004] The purpose of this invention is to provide an automatic residual chlorine monitor in water that is simple in structure and reasonably designed in order to solve the above-mentioned problems.

[0005] The present invention achieves the above objectives through the following technical solutions:

[0006] An automatic residual chlorine monitor in water includes a flow tank, an inlet pipe on one side of the flow tank, an outlet pipe on the other side of the flow tank, a residual chlorine electrode vertically arranged at the center of the inner side of the flow tank, an electromagnetic lifting assembly movably mounted on the outer side of the residual chlorine electrode, an annular brushing assembly on the inner side of the electromagnetic lifting assembly, a driving assembly on the outer side of the electromagnetic lifting assembly, and several water spraying mechanisms spraying water onto the driving assembly on the side wall of the flow tank.

[0007] As a further optimization of the present invention, the electromagnetic lifting assembly includes an annular magnet that is movably mounted on the outside of the residual chlorine electrode, an electromagnet located below the annular magnet is fixedly mounted at the bottom of the flow tank, and several fixing sleeves are fixedly mounted on the outside of the annular magnet.

[0008] As a further optimization of the present invention, the annular brushing assembly includes an annular ring fixedly disposed inside the annular magnet, and the inner ring of the annular ring is fixedly disposed with a plurality of bristles that cooperate with the residual chlorine electrode for brushing.

[0009] As a further optimization of the present invention, the driving assembly includes a driving ring fixedly disposed on the outside of the annular magnet, and a plurality of driving blades are fixedly disposed on the outside of the driving ring.

[0010] As a further optimization of the present invention, the water spraying mechanism includes a mounting base fixedly installed on the side wall of the flow pool, a plurality of water spraying pipes are fixedly installed through the inner side of the mounting base, one end of the plurality of water spraying pipes extends to the inner side of the flow pool, a control valve is provided on each of the plurality of water spraying pipes, one end of the plurality of water spraying pipes is fixedly connected to an intermediate pipe located on the outer side of the flow pool, and the upper end of the intermediate pipe is connected to an addition pipe.

[0011] As a further optimization of the present invention, an inlet valve is provided on the inlet pipe, an outlet valve is provided on the outlet pipe, and a filter assembly is provided on the inner side wall of the flow pool, which respectively cooperates with one end of the inlet pipe and the outlet pipe.

[0012] As a further optimization of the present invention, the filter assembly includes a filter plate fixedly disposed on the inner side wall of the flow pool and cooperating with one end of the inlet pipe and the outlet pipe. The filter plate has a plurality of filter holes, and the edge of the filter plate is provided with a plurality of positioning screws that are connected to the flow pool.

[0013] As a further optimization of the present invention, the upper side of the flow cell is covered with a cover plate, and a fixed base connected to the residual chlorine electrode is fixedly disposed at the center of the cover plate.

[0014] As a further optimization of the present invention, an acid inlet pipe is fixedly connected to the upper side of the cover plate, and an acid inlet valve is provided on the acid inlet pipe.

[0015] As a further optimization of the present invention, a drain pipe is fixedly connected to the bottom of the flow pool, and a drain valve is provided on the drain pipe.

[0016] The beneficial effects of this invention are as follows:

[0017] 1. In this invention, by energizing an electromagnet, the annular magnet can be raised and lowered along the residual chlorine electrode. This allows the bristles of the inner ring of the annular magnet to brush away dirt from the outside of the residual chlorine electrode. Furthermore, when the annular magnet rises to a certain position, water sprayed from a water pipe drives multiple drive blades on the outer ring of the annular magnet. These drive blades then rotate the annular magnet on the outside of the residual chlorine electrode, thereby rotating and brushing away the dirt on the outside of the residual chlorine electrode, thus improving the cleaning effect of the residual chlorine electrode.

[0018] 2. In this invention, acidic reagents can be introduced into the flow cell through the acid inlet pipe, which can acid wash the dirt on the surface of the residual chlorine electrode, soften the dirt, and make it easier to remove it by brushing, thereby improving the dirt cleaning effect. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall front structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the overall structure of the present invention viewed from below;

[0021] Figure 3 This is a schematic diagram of the first internal overall structure of the present invention;

[0022] Figure 4 This is a schematic diagram of the second internal overall structure of the present invention;

[0023] Figure 5 This is a schematic diagram of the third internal overall structure of the present invention;

[0024] Figure 6 This is a schematic diagram of the fourth internal overall structure of the present invention;

[0025] Figure 7 This is the present invention. Figure 3 Enlarged view of point A in the middle;

[0026] Figure 8 This is the present invention. Figure 4 Enlarged view at point B in the middle;

[0027] Figure 9 This is the present invention. Figure 4 Enlarged view at point C;

[0028] Figure 10 This is the present invention. Figure 5 Enlarged view at point D;

[0029] Figure 11 This is the present invention. Figure 5 Enlarged view at point E in the middle;

[0030] Figure 12 This is the present invention. Figure 6 Enlarged view of point F in the middle.

[0031] In the diagram: 1. Flow tank; 2. Inlet pipe; 201. Inlet valve; 3. Outlet pipe; 301. Outlet valve; 4. Spray mechanism; 401. Mounting base; 402. Spray pipe; 403. Control valve; 404. Intermediate pipe; 405. Addition pipe; 5. Residual chlorine electrode; 501. Fixed base; 6. Acid inlet pipe; 601. Acid inlet valve; 7. Drain pipe; 701. Drain valve; 8. Electromagnetic lifting assembly; 801. Electromagnet; 802. Ring magnet; 803. Fixing sleeve; 9. Drive assembly; 901. Drive ring; 902. Drive blades; 10. Annular brushing assembly; 1001. Annular ring; 1002. Brush bristles; 11. Filter assembly; 1101. Filter plate; 1102. Filter hole; 1103. Positioning screw; 12. Cover plate. Detailed Implementation

[0032] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0033] Example

[0034] like Figure 1 , Figure 2 , Figure 5 , Figure 11 As shown, an automatic residual chlorine monitor in water includes a flow tank 1, which is a cylindrical cavity structure with an open top. A cover plate 12 is fitted over the upper side of the flow tank 1, and the edge of the cover plate 12 is connected to the flow tank 1 by screws. An acid inlet pipe 6 is fixedly connected to the upper side of the cover plate 12, and an acid inlet valve 601 is installed on the acid inlet pipe 6. A water inlet pipe 2 is installed on one side of the flow tank 1, and a water inlet valve 201 is installed on the water inlet pipe 2. A dosing pump (not shown in the figure) is installed on the water inlet pipe 2, which can add disinfectant into the flow tank 1 to achieve intelligent regulation and precise control of the water inlet flow rate. An outlet pipe 3 is installed on the other side of the flow tank 1, and an outlet valve is installed on the outlet pipe 3. 301. The flow tank 1 is connected in parallel with the pipe network for monitoring residual chlorine in the water. The bottom of the flow tank 1 is fixedly connected to a drain pipe 7, and a drain valve 701 is installed on the drain pipe 7. The inner side wall of the flow tank 1 is provided with filter components 11 that are respectively matched with one end of the inlet pipe 2 and the outlet pipe 3. The filter components 11 include filter plates 1101 fixedly installed on the inner side wall of the flow tank 1 and matched with one end of the inlet pipe 2 and the outlet pipe 3. The filter plates 1101 have several filter holes 1102. The edge of the filter plates 1101 is provided with several positioning screws 1103 that are connected to the flow tank 1. The positioning screws 1103 facilitate the installation and disassembly of the filter plates 1101, and facilitate the cleaning and replacement of the filter plates 1101.

[0035] like Figure 1 , Figure 2 , Figure 3As shown, a fixed base 501 is fixedly installed in the middle of the cover plate 12. A residual chlorine electrode 5 is fixedly installed through the center of the fixed base 501. The detection end of the residual chlorine electrode 5 is located vertically in the center of the inner side of the flow tank 1. The residual chlorine electrode 5 can monitor the chlorine content in the water. The system has a fault diagnosis function when the detected value is lower than the set minimum limit: When this situation is detected, the first step is that the system will analyze and judge whether the inlet flow rate fluctuates greatly. If the fluctuation is large, the inlet flow rate will be adjusted to a suitable range through the inlet valve 201 and the outlet valve 301. Otherwise, the system will proceed to the next step. The second step is that the system will automatically add the corresponding volume of disinfectant to the inlet of the device through the dosing pump, and perform the next step according to the different situations fed back by the system, as follows: Situation 1: After the system automatically adds the corresponding volume of disinfectant to the inlet of the device through the dosing pump, if the residual chlorine detection value increases, it indicates that the sensor is not faulty. The reason for the value being lower than the minimum limit is determined to be that the residual chlorine content in the water in the pipeline where the monitoring point is located is too low. At this time, the system will add the corresponding volume of disinfectant to the inlet pipe 2. The system will determine whether the residual chlorine detection value meets the set residual chlorine value range. If it does not meet the set value, the corresponding volume of disinfectant will be added again. This operation will be repeated until the detected residual chlorine value meets the set residual chlorine value range. In addition, the system will simultaneously send the judgment result (i.e., insufficient residual chlorine in the monitoring point network) back to the dispatch platform. Scenario 2: After the system automatically adds the corresponding volume of disinfectant to the device inlet via the dosing pump, if the residual chlorine detection value does not increase accordingly, the system will start the scrubbing (i.e., routine cleaning) mode to clean the sensor. After cleaning, the system will analyze and determine whether the monitored value is higher than the set minimum limit. If it still does not reach the set minimum limit, the system will add the corresponding volume of disinfectant to the device inlet again. If the residual chlorine detection value increases, it indicates that the reason for being lower than the minimum limit is that the residual chlorine content in the pipe network water where the monitoring point is located is low, and the surface of the residual chlorine electrode 5 is covered with dirt, resulting in inaccurate detection results. In addition, the system will simultaneously send the judgment result (i.e., insufficient residual chlorine in the pipe network and too low frequency of automatic cleaning of the residual chlorine electrode 5) back to the dispatch platform. Scenario 3: After the system automatically adds the appropriate volume of disinfectant to the device inlet via the dosing pump, if the residual chlorine level does not increase accordingly, the system will initiate a scrubbing (i.e., routine cleaning) mode to clean the residual chlorine electrode 5. After cleaning, the system analyzes whether the monitored value is higher than the set minimum limit. If it still does not reach the set minimum limit, the system will add the appropriate volume of disinfectant to the device inlet again. If the residual chlorine level still does not increase accordingly, it can be preliminarily determined that the residual chlorine electrode 5 may be malfunctioning. At this time, the system will send the preliminary judgment result (i.e., the residual chlorine electrode 5 may be malfunctioning) back to the dispatching platform.Simultaneously, the system will initiate an acid immersion + scrubbing (i.e., deep cleaning) mode to clean the residual chlorine electrode 5. After cleaning, the system will analyze and determine whether the monitored value is higher than the set minimum limit. If the value is still below the set minimum limit, the system will add the corresponding volume of disinfectant to the inlet of the device again. If the residual chlorine detection value still does not increase accordingly, it can be determined that the residual chlorine electrode 5 is damaged or has reached the end of its service life and needs to be replaced. At this time, the system will send the determination result (i.e., the residual chlorine electrode 5 has failed and needs to be replaced) back to the dispatch platform.

[0036] like Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 7 , Figure 9 As shown, an electromagnetic lifting assembly 8 is movably mounted on the outside of the residual chlorine electrode 5. The electromagnetic lifting assembly 8 includes an annular magnet 802 that is movably mounted on the outside of the residual chlorine electrode 5. An electromagnet 801 located below the annular magnet 802 is fixedly mounted at the bottom of the flow cell 1. In use, by energizing the electromagnet 801, the electromagnet 801 becomes magnetic, and the magnetism of the electromagnet 801 is the same as the magnetism of the lower side of the annular magnet 802. As a result, the annular magnet 802 is repelled by the electromagnet 801, which pushes the annular magnet 802 to rise along the residual chlorine electrode 5. Several fixed sleeves 803 are fixedly mounted on the outside of the annular magnet 802.

[0037] like Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 9 , Figure 10 , Figure 12 As shown, a ring-shaped brushing assembly 10 is provided on one side of several fixed sleeves 803. The ring-shaped brushing assembly 10 includes an annular ring 1001 fixedly disposed on one side of several fixed sleeves 803. The annular ring 1001 is connected to several fixed sleeves 803 by screws for easy disassembly and replacement. Several bristles 1002 that cooperate with the brushing of the residual chlorine electrode 5 are fixedly disposed on the inner ring of the annular ring 1001. The brushing ends of the bristles 1002 abut against the outer side of the residual chlorine electrode 5 to facilitate the removal of dirt from the outer side of the residual chlorine electrode 5.

[0038] like Figure 3 , Figure 4 , Figure 5 , Figure 7 , Figure 8 , Figure 9 , Figure 10 , Figure 12As shown, a drive assembly 9 is provided on the outer side of the electromagnetic lifting assembly 8. The drive assembly 9 includes a drive ring 901 disposed on the outer side of the annular magnet 802. The drive ring 901 is connected to the outer side of the fixing sleeve 803 by screws, which facilitates the installation and removal of the drive ring. Several drive blades 902 are fixedly disposed on the outer side of the drive ring 901. Several water spraying mechanisms 4 for spraying water onto the drive assembly 9 are provided on the side wall of the flow pool 1. In this embodiment, two sets of water spraying mechanisms 4 are provided, and the specific number can be flexibly selected according to actual needs. The water spraying mechanism 4 includes a mounting base 401 fixedly disposed on the side wall of the flow pool 1. Several water spraying pipes 402 are fixedly and penetrated through the inner side of the mounting base 401. One end of several water spraying pipes 402 extends to the inner side of the flow pool 1. Each of the several water spraying pipes 402 is provided with a control valve 403. One end of several water spraying pipes 402 is fixedly connected to a middle pipe 404 located on the outer side of the flow pool 1. The upper end of the middle pipe 404 is connected to a central pipe 404 located on the outer side of the flow pool 1. The intermediate pipe 404 is connected to an addition pipe 405, one end of which is connected to a water pump (not shown in the figure). The water pump draws cleaning water into the interior of the intermediate pipe 404 through the addition pipe 405. Then, by opening the corresponding control valve 403, the corresponding water spray pipe 402 is opened, allowing the water sprayed from the water spray pipe 402 to wash away the dirt on the surface of the residual chlorine electrode 5. It can also impact one side of the drive blade 902, which causes the drive ring 901 to drive the annular magnet 802 to rotate around the residual chlorine electrode 5. This causes the annular ring 1001 and bristles 1002 of the annular magnet 802 to rotate on the outside of the residual chlorine electrode 5, thus brushing away the dirt on the surface of the residual chlorine electrode 5. When the annular magnet 802 is at the bottom, the water sprayed from the water spray pipe 402 can also backwash the filter plate 1101, washing away the dirt in the filter holes 1102 on the filter plate 1101.

[0039] It should be noted that in this automatic residual chlorine monitor for water, during routine cleaning, energizing the electromagnet 801 makes it magnetic. The magnetism of the electromagnet 801 is the same as the magnetism on the lower side of the annular magnet 802, causing the annular magnet 802 to be repelled by the electromagnet 801. This pushes the annular magnet 802 upwards along the residual chlorine electrode 5 for vertical cleaning. Simultaneously, the magnetic force of the electromagnet 801 remains unchanged, allowing the annular magnet 802 to be suspended and fitted outside the residual chlorine electrode 5. Then, a water pump draws cleaning water into the middle pipe 404 through the addition pipe 405. Opening the corresponding height control valve 403 opens the corresponding water spray pipe 402, allowing the water sprayed from the spray pipe 402 to impact one side of the drive blade 902. This causes the drive ring 901 to rotate the annular magnet 802 around the residual chlorine electrode 5. This causes the annular ring 1001 and brush bristles 1002 of the inner ring magnet 802 to rotate outside the residual chlorine electrode 5, thus cleaning the dirt on the surface of the residual chlorine electrode 5. By adjusting the magnetic force of the electromagnet 801, the height of the annular magnet 802 can be adjusted, allowing dirt at different heights on the residual chlorine electrode 5 to be cleaned. Furthermore, by driving the blades 902 in the opposite direction to rotate and splash the cleaning water, the inner wall of the flow tank 1 can also be cleaned. For deep cleaning, first close the inlet pipe 2 and the outlet pipe 3, and simultaneously close the drain pipe 7. Then, the acidic reagent is introduced into the flow tank 1 through the acid inlet pipe 6. After a period of time, the drain pipe 7 is opened to discharge the acidic reagent, thus pre-softening the dirt on the surface of the residual chlorine electrode 5. Repeating the above operation can clean even more stubborn dirt, improve the cleaning effect, and extend the service life of the residual chlorine electrode 5.

[0040] The embodiments described above are merely examples of several implementations of the present invention, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention.

Claims

1. An automatic residual chlorine monitoring device for water, comprising a flow-through tank (1), characterized in that: A water inlet pipe (2) is provided on one side of the flow tank (1), and a water outlet pipe (3) is provided on the other side of the flow tank (1). A residual chlorine electrode (5) is vertically arranged in the center of the inner side of the flow tank (1). An electromagnetic lifting assembly (8) is movably mounted on the outer side of the residual chlorine electrode (5). A ring-shaped brushing assembly (10) is provided on the inner side of the electromagnetic lifting assembly (8). A driving assembly (9) is provided on the outer side of the electromagnetic lifting assembly (8). Several water spraying mechanisms (4) that spray water to the driving assembly (9) are provided on the side wall of the flow tank (1). The electromagnetic lifting assembly (8) includes an annular magnet (802) that is movably mounted on the outside of the residual chlorine electrode (5). An electromagnet (801) located below the annular magnet (802) is fixedly mounted at the bottom of the flow tank (1). Several fixed sleeves (803) are fixedly mounted on the outside of the annular magnet (802). The annular brushing assembly (10) includes an annular ring (1001) fixedly disposed inside the annular magnet (802), and the inner ring of the annular ring (1001) is fixedly provided with a plurality of bristles (1002) that cooperate with the residual chlorine electrode (5) for brushing. The drive assembly (9) includes a drive ring (901) fixedly disposed on the outside of the annular magnet (802), and a plurality of drive blades (902) are fixedly disposed on the outside of the drive ring (901). The water spraying mechanism (4) includes a mounting base (401) fixedly installed on the side wall of the flow pool (1). A plurality of water spraying pipes (402) are fixedly installed through the inner side of the mounting base (401). One end of the plurality of water spraying pipes (402) extends to the inner side of the flow pool (1). A control valve (403) is provided on each of the plurality of water spraying pipes (402). One end of the plurality of water spraying pipes (402) is fixedly connected to an intermediate pipe (404) located outside the flow pool (1). The upper end of the intermediate pipe (404) is connected to an addition pipe (405).

2. The automatic residual chlorine monitor in water according to claim 1, characterized in that: The inlet pipe (2) is equipped with an inlet valve (201), the outlet pipe (3) is equipped with an outlet valve (301), and the inner wall of the flow pool (1) is equipped with a filter assembly (11) that is respectively matched with one end of the inlet pipe (2) and the outlet pipe (3).

3. The automatic residual chlorine monitor in water according to claim 2, characterized in that: The filter assembly (11) includes a filter plate (1101) fixedly installed on the inner wall of the flow pool (1) and cooperating with one end of the inlet pipe (2) and the outlet pipe (3). The filter plate (1101) has a plurality of filter holes (1102) and the edge of the filter plate (1101) is provided with a plurality of positioning screws (1103) connected to the flow pool (1).

4. The automatic residual chlorine monitor in water according to claim 3, characterized in that: The upper side of the flow cell (1) is covered by a cover plate (12), and a fixed base (501) connected to the residual chlorine electrode (5) is fixedly provided at the center of the cover plate (12).

5. The automatic residual chlorine monitor in water according to claim 4, characterized in that: The upper side of the cover plate (12) is fixedly connected to an acid inlet pipe (6), and an acid inlet valve (601) is provided on the acid inlet pipe (6).

6. An automatic residual chlorine monitor in water according to any one of claims 1-5, characterized in that: The bottom of the flow pool (1) is fixedly connected to a drain pipe (7), and a drain valve (701) is provided on the drain pipe (7).

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