Automatic monitor for residual chlorine in water

Abstract

The invention relates to an automatic monitor for residual chlorine in water, and belongs to the technical field of residual chlorine monitoring, the automatic monitor for residual chlorine in water comprises a flow cell, one side of the flow cell is provided with a water inlet pipe, the other side of the flow cell is provided with a water outlet pipe, the center of the inner side of the flow cell is vertically provided with a residual chlorine electrode, and the inner side of the flow cell is provided with a water outlet pipe. The outer side of the residual chlorine electrode is movably sleeved with an electromagnetic lifting assembly in a lifting mode, the electromagnetic lifting assembly comprises an annular magnet movably arranged on the outer side of the residual chlorine electrode in a lifting mode, an electromagnet located on the lower side of the annular magnet is fixedly arranged at the bottom of the flow cell, and the outer side of the annular magnet is fixedly sleeved with a plurality of fixing sleeves; an annular scrubbing assembly is arranged on the inner side of the electromagnetic lifting assembly, a driving assembly is arranged on the outer side of the electromagnetic lifting assembly, and a plurality of water spraying mechanisms for spraying water to the driving assembly are arranged on the side wall of the flow cell.

Description

Technical Field

[0001] The present invention belongs to the technical field of residual chlorine monitoring, and particularly relates to an automatic residual chlorine monitor for water. Background Art

[0002] In the urban water supply system, residual chlorine is one of the important indicators to measure water quality safety. Chlorine disinfection is widely used in the water treatment process to kill pathogenic microorganisms and prevent secondary pollution in the pipe network. However, the residual chlorine in the water supply system needs to be maintained within a reasonable range. Too low residual chlorine will increase the risk of microbial growth, and too high residual chlorine may cause an increase in the risk of disinfection by-products. Therefore, real-time and accurate monitoring of residual chlorine can ensure continuous and effective disinfection in the water supply system, prevent the risk of microbial contamination, and help water treatment plants optimize the chlorine dosing scheme, which is crucial for ensuring drinking water safety.

[0003] For example, in a Chinese utility model patent with the publication number CN216816649U and the name of 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, the residual chlorine meter 2PT, and the pH meter 3PT are respectively connected to the PLC controller, and the PLC controller is connected to the display screen HMI. Although the residual chlorine in the water can be monitored through the above-mentioned prior art, since the residual chlorine electrode of the residual chlorine monitor is immersed in water for a long time, dirt is likely to adhere to its surface. If not cleaned, it is likely to affect the measurement accuracy and may shorten the life of the electrode. Summary of the Invention

[0004] The purpose of the present invention is to provide an automatic residual chlorine monitor for water with a simple structure and reasonable design to solve the above problems.

[0005] The present invention realizes the above purpose through the following technical solutions:

[0006] An automatic residual chlorine monitor for water includes a flow-through cell. One side of the flow-through cell is provided with a water inlet pipe, and the other side is provided with a water outlet pipe. A residual chlorine electrode is vertically arranged at the center inside the flow-through cell. An electromagnetic lifting assembly is sleeved on the outside of the residual chlorine electrode in a lifting and movable manner. An annular brushing assembly is arranged inside the electromagnetic lifting assembly, and a driving assembly is arranged outside the electromagnetic lifting assembly. A plurality of water spraying mechanisms for spraying water to the driving assembly are arranged on the side wall of the flow-through cell.

[0007] As a further optimized solution of the present invention, the electromagnetic lifting assembly includes an annular magnet sleeved on the outside of the residual chlorine electrode in a lifting and movable manner. An electromagnet is fixedly arranged at the bottom of the flow-through cell and located below the annular magnet. A plurality of fixed sleeves are fixedly sleeved on the outside of the annular magnet.

[0008] As a further optimized solution of the present invention, the annular brushing assembly includes an annular ring fixedly arranged inside the annular magnet, and a plurality of bristles for brushing and cooperating with the residual chlorine electrode are fixedly arranged on the inner ring of the annular ring.

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

[0010] As a further optimized solution of the present invention, the water spraying mechanism includes an installation base fixedly arranged on the side wall of the flow-through pool, a plurality of spray water pipes are fixedly penetrated through the inside of the installation base, one ends of the plurality of spray water pipes extend to the inside of the flow-through pool, control valves are arranged on the plurality of spray water pipes, one ends of the plurality of spray water pipes are fixedly communicated with an intermediate pipe located outside the flow-through pool together, and an adding pipe is communicated with the upper ends of the intermediate pipes together.

[0011] As a further optimized solution of the present invention, a water inlet valve is arranged on the water inlet pipe, a water outlet valve is arranged on the water outlet pipe, and a filtering assembly for cooperating with one ends of the water inlet pipe and the water outlet pipe respectively is arranged on the inner side wall of the flow-through pool.

[0012] As a further optimized solution of the present invention, the filtering assembly includes a filter plate fixedly arranged on the inner side wall of the flow-through pool and cooperating with one ends of the water inlet pipe and the water outlet pipe, a plurality of filtering holes are formed in the filter plate, and a plurality of positioning screws connected with the flow-through pool are arranged on the edge of the filter plate.

[0013] As a further optimized solution of the present invention, a cover plate is covered on the upper side of the flow-through pool, and a fixed base connected with the residual chlorine electrode is fixedly arranged at the center of the cover plate.

[0014] As a further optimized solution of the present invention, an acid inlet pipe is fixedly communicated with the upper side of the cover plate, and an acid inlet valve is arranged on the acid inlet pipe.

[0015] As a further optimized solution of the present invention, a drain pipe is fixedly communicated with the bottom of the flow-through pool, and a drain valve is arranged on the drain pipe.

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

[0017] 1. In the present invention, by energizing the electromagnet, the annular magnet can be made to move up and down along the residual chlorine electrode, so that the bristles on the inner ring of the annular magnet can move up and down and brush on the outside of the residual chlorine electrode. Also, when the annular magnet rises to a certain position, then the water sprayed by the spray water pipes drives a plurality of driving blades on the outer ring of the annular magnet, and the driving blades can drive the annular magnet to rotate on the outside of the residual chlorine electrode, thereby rotating and brushing the dirt on the outside of the residual chlorine electrode and improving the cleaning effect of the residual chlorine electrode.

[0018] 2. In the present invention, an acidic reagent can be filled into the flow cell through an acid inlet pipe, which can pickle the dirt on the surface of the residual chlorine electrode, soften the dirt, facilitate subsequent brushing by bristles, and improve the dirt cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0020] Figure 2 is a bottom view overall structural schematic diagram of the present invention;

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

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

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

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

[0025] Figure 7 is the present invention Figure 3 an enlarged view of part A in;

[0026] Figure 8 is the present invention Figure 4 an enlarged view of part B in;

[0027] Figure 9 is the present invention Figure 4 an enlarged view of part C in;

[0028] Figure 10 is the present invention Figure 5 an enlarged view of part D in;

[0029] Figure 11 is the present invention Figure 5 an enlarged view of part E in;

[0030] Figure 12 is the present invention Figure 6 an enlarged view of part F in.

[0031] In the figure: 1. Flow cell; 2. Inlet pipe; 201. Inlet valve; 3. Outlet pipe; 301. Outlet valve; 4. Spraying 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. Fixed sleeve; 9. Driving assembly; 901. Driving ring; 902. Driving blade; 10. Ring brushing assembly; 1001. Ring; 1002. Brush bristles; 11. Filter assembly; 1101. Filter plate; 1102. Filter holes; 1103. Positioning screws; 12. Cover plate. Detailed implementation manners

[0032] The following further describes the present application in detail with reference to the accompanying drawings. It is necessary to point out here that the following specific implementation manners are only used to further illustrate the present application and cannot be construed as a limitation on the protection scope of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application according to the above application content.

[0033] Embodiment

[0034] As Figure 1 、 Figure 2 、 Figure 5 、 Figure 11 shown, an automatic residual chlorine monitor for water includes a flow cell 1. The flow cell 1 adopts a cylindrical cavity structure with an open upper end. A cover plate 12 is covered on the upper side of the flow cell 1. The edge of the cover plate 12 is connected to the flow cell 1 by screws. An acid inlet pipe 6 is fixedly connected to the upper side of the cover plate 12. An acid inlet valve 601 is arranged on the acid inlet pipe 6. An inlet pipe 2 is arranged on one side of the flow cell 1. An inlet valve 201 is arranged on the inlet pipe 2. A dosing pump (not shown in the figure) is arranged on the inlet pipe 2. Through the dosing pump, disinfectant can be added into the flow cell 1 to realize intelligent regulation of the influent flow rate and accurately control the influent flow rate. An outlet pipe 3 is arranged on the other side of the flow cell 1. An outlet valve 301 is arranged on the outlet pipe 3. The flow cell 1 is connected in parallel with the pipe network for monitoring the residual chlorine in water. A drain pipe 7 is fixedly connected to the bottom of the flow cell 1. A drain valve 701 is arranged on the drain pipe 7. A filter assembly 11 that cooperates with one ends of the inlet pipe 2 and the outlet pipe 3 respectively is arranged on the inner side wall of the flow cell 1. The filter assembly 11 includes a filter plate 1101 fixedly arranged on the inner side wall of the flow cell 1 and cooperating with one ends of the inlet pipe 2 and the outlet pipe 3. A plurality of filter holes 1102 are formed in the filter plate 1101. A plurality of positioning screws 1103 connected to the flow cell 1 are arranged on the edge of the filter plate 1101. The filter plate 1101 can be conveniently installed and disassembled through the positioning screws 1103, which is convenient for cleaning and replacing the filter plate 1101.

[0035] such as Figure 1 and Figure 2 and Figure 3As shown, a fixed base 501 is fixedly arranged in the middle of the cover plate 12. A residual chlorine electrode 5 is fixedly arranged through the center of the fixed base 501. The detection end of the residual chlorine electrode 5 is located in the inner center of the flow-through cell 1 in the vertical direction. The content of chlorine in the water can be monitored through the residual chlorine electrode 5. Fault preliminary judgment function when the system monitors that the detected value is lower than the set minimum limit value: When this situation is monitored, first, the system will analyze and judge whether the influent flow rate fluctuates greatly. If the fluctuation is large, the influent flow rate will be adjusted to an appropriate range through the influent valve 201 and the effluent valve 301. Otherwise, the system will enter the next operation; Second, the system will automatically add a corresponding volume of disinfectant to the water inlet of the device through the dosing pump and perform the next operation according to different conditions feedback by the system, as follows: Condition 1: After the system automatically adds a corresponding volume of disinfectant to the water inlet of the device through the dosing pump, if the residual chlorine detection value increases, it indicates that the sensor has no fault. The reason for being lower than the minimum limit value is judged as: the residual chlorine content in the water of the pipe network where the monitoring point is located is low. At this time, the system will add a corresponding volume of disinfectant to the influent pipe 2, and the system will judge whether the residual chlorine detection value meets the set residual chlorine value range. If it does not meet, a corresponding volume of disinfectant will be added again, and this operation will be cycled until the detected residual chlorine detection value meets the set residual chlorine value range. In addition, the system will synchronously transmit the judgment result (that is, the residual chlorine in the pipe network of the monitoring point is insufficient) to the dispatching platform. Condition 2: After the system automatically adds a corresponding volume of disinfectant to the water inlet of the device through the dosing pump, if the residual chlorine detection value does not increase correspondingly, the system will start the brushing (i.e., regular cleaning) mode to clean the sensor. After the cleaning is completed, it will analyze and judge whether the monitored value is higher than the set minimum limit value. If it still does not reach the set minimum limit value, the system will add a corresponding volume of disinfectant to the water inlet of the device again. If the residual chlorine detection value increases, it indicates that the reason for being lower than the minimum limit value is: the residual chlorine content in the water of the pipe network where the monitoring point is located is low, and the surface of the residual chlorine electrode 5 is wrapped by stains, resulting in inaccurate detection results. In addition, the system will synchronously transmit the judgment result (that is, the residual chlorine in the pipe network is insufficient and the automatic cleaning frequency of the residual chlorine electrode 5 is too low) to the dispatching platform. Condition 3: After the system automatically adds a corresponding volume of disinfectant to the water inlet of the device through the dosing pump, if the residual chlorine detection value does not increase correspondingly, the system will start the brushing (i.e., regular cleaning) mode to clean the residual chlorine electrode 5. After the cleaning is completed, it will analyze and judge whether the monitored value is higher than the set minimum limit value. If it still does not reach the set minimum limit value, the system will add a corresponding volume of disinfectant to the water inlet of the device again. If the residual chlorine detection value still does not increase correspondingly, it can be initially judged that the residual chlorine electrode 5 may be faulty. At this time, the system will transmit the preliminary judgment result (that is, the residual chlorine electrode 5 may be faulty) to the dispatching platform.Meanwhile, the system will start the acid leaching + brushing (i.e., deep cleaning) mode to clean the residual chlorine electrode 5. After the cleaning is completed, it will analyze and judge whether the monitored value is higher than the set minimum limit value. If it still does not reach the set minimum limit value, the system will add the corresponding volume of disinfectant to the water inlet of the device again. If the residual chlorine detection value still does not increase correspondingly, it can be judged that the residual chlorine electrode 5 is damaged or its service life has expired and needs to be replaced. At this time, the system will transmit the judgment result (i.e., the residual chlorine electrode 5 has failed and needs to be replaced) back to the dispatching platform.

[0036] As Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 7 、 Figure 9 shown, an electromagnetic lifting component 8 is sleeved on the outer side of the residual chlorine electrode 5 in a lifting and movable manner. The electromagnetic lifting component 8 includes an annular magnet 802 sleeved on the outer side of the residual chlorine electrode 5 in a lifting and movable manner. An electromagnet 801 is fixedly arranged at the bottom of the flow cell 1 and is located below the annular magnet 802. During use, by energizing the electromagnet 801, the electromagnet 801 can be made magnetic, so that the magnetism of the electromagnet 801 is the same as the magnetism on the lower side of the annular magnet 802. Furthermore, the annular magnet 802 is repelled by the electromagnet 801, and thus the annular magnet 802 can be pushed to rise along the residual chlorine electrode 5. A plurality of fixed sleeves 803 are fixedly sleeved on the outer side of the annular magnet 802.

[0037] As Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 、 Figure 9 、 Figure 10 、 Figure 12 shown, a circular brushing component 10 is arranged on one side of the plurality of fixed sleeves 803. The circular brushing component 10 includes an annular ring 1001 fixedly arranged on one side of the plurality of fixed sleeves 803. The annular ring 1001 is connected to the plurality of fixed sleeves 803 by screws, which is convenient for disassembly and replacement. A plurality of bristles 1002 that are brush-removed in cooperation with the residual chlorine electrode 5 are fixedly arranged on the inner ring of the annular ring 1001. The brush-removing ends of the bristles 1002 abut against the outer side of the residual chlorine electrode 5, which is convenient for brushing off the dirt on the outer side of the residual chlorine electrode 5.

[0038] As Figure 3 、 Figure 4 、 Figure 5 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 、 Figure 12As shown, a drive assembly 9 is provided outside the electromagnetic lifting assembly 8. The drive assembly 9 includes a drive ring 901 provided outside the annular magnet 802. The drive ring 901 is connected to the outside of the fixed sleeve 803 by screws, which facilitates the installation and disassembly of the drive ring. A number of drive vanes 902 are fixedly provided on the outside of the drive ring 901. A number of water spraying mechanisms 4 for spraying water towards the drive assembly 9 are provided on the side wall of the flow cell 1. In this embodiment, two groups of water spraying mechanisms 4 are provided, and the specific number is flexibly selected according to the actual situation. The water spraying mechanism 4 includes a mounting base 401 fixedly provided on the side wall of the flow cell 1. A number of water spray pipes 402 are fixedly and penetratingly provided inside the mounting base 401. One end of a number of water spray pipes 402 extends to the inside of the flow cell 1. Control valves 403 are provided on a number of water spray pipes 402. One end of a number of water spray pipes 402 is fixedly and communicatively connected to an intermediate pipe 404 located outside the flow cell 1. The upper ends of the intermediate pipe 404 are commonly connected to an addition pipe 405. One end of the addition pipe 405 is connected to a water pump (not shown in the figure). The clean water is pumped into the inside of the intermediate pipe 404 through the addition pipe 405 by the water pump. Then, by opening the corresponding control valve 403, the corresponding water spray pipe 402 can be opened, so that the water sprayed from the water spray pipe 402 can wash away the dirt on the surface of the residual chlorine electrode 5, and can also impact one side of the drive vane 902, so that the drive ring 901 drives the annular magnet 802 to rotate around the residual chlorine electrode 5, and then drives the annular ring 1001 and the bristles 1002 inside the inner circle of the annular magnet 802 to rotate outside the residual chlorine electrode 5, so that the dirt on the surface of the residual chlorine electrode 5 can be brushed and cleaned. And when the annular magnet 802 is at the bottom, the water sprayed from the water spray pipe 402 can also reversely wash the filter plate 1101, so that the dirt in the filter holes 1102 of the filter plate 1101 is washed away.

[0039] It should be noted that for this automatic residual chlorine monitor in water, when performing routine cleaning, the electromagnet 801 is energized, which can make the electromagnet 801 magnetic, so that the magnetism of the electromagnet 801 is the same as that of the lower side of the annular magnet 802. As a result, the annular magnet 802 is repelled by the electromagnet 801, and the annular magnet 802 can be pushed to rise along the residual chlorine electrode 5 for vertical brushing and cleaning. At the same time, the magnetic force of the electromagnet 801 is kept unchanged, so that the annular magnet 802 is sleeved outside the residual chlorine electrode 5 in a suspended state. Then, clean water is pumped into the interior of the intermediate pipe 404 through the adding pipe 405 by a water pump. Then, by opening the control valve 403 at the corresponding height, the corresponding water spray pipe 402 can be opened, so that the water sprayed by the water spray pipe 402 can impact one side of the driving blade 902, and the driving ring 901 can drive the annular magnet 802 to rotate around the residual chlorine electrode 5. Further, the annular ring 1001 and the bristles 1002 inside the annular magnet 802 rotate outside the residual chlorine electrode 5, so that the dirt on the surface of the residual chlorine electrode 5 can be brushed and cleaned. By adjusting the magnetic force of the electromagnet 801, the height of the annular magnet 802 can be adjusted to clean the dirt at different heights of the residual chlorine electrode 5. And by driving the cleaning water to rotate and splash in the reverse direction by the driving blade 902, the inner side wall of the flow cell 1 can also be cleaned; when performing deep cleaning, first close the water inlet pipe 2 and the water outlet pipe 3, and at the same time close the drain pipe 7. Then, the acidic reagent is filled into the interior of the flow cell 1 through the acid inlet pipe 6. After a period of time, open the drain pipe 7 to discharge the acidic reagent, so that the dirt on the surface of the residual chlorine electrode 5 is pre-softened. Repeat the above operation, and more stubborn dirt can be cleaned, improving the cleaning effect and prolonging the service life of the residual chlorine electrode 5.

[0040] The above embodiments only represent several implementation manners of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. An automatic residual chlorine monitor in water, comprising a flow-through cell (1), characterized in that: One side of the flow cell (1) is provided with a water inlet pipe (2), the other side of the flow cell (1) is provided with a water outlet pipe (3), a residual chlorine electrode (5) is vertically arranged at the center inside the flow cell (1), an electromagnetic lifting assembly (8) is sleeved on the outer side of the residual chlorine electrode (5) in a lifting and movable manner, an annular brushing assembly (10) is arranged inside the electromagnetic lifting assembly (8), a driving assembly (9) is arranged on the outer side of the electromagnetic lifting assembly (8), and a plurality of water spraying mechanisms (4) for spraying water to the driving assembly (9) are arranged on the side wall of the flow cell (1).

2. An automatic residual chlorine monitor in water according to claim 1, characterized in that: The electromagnetic lifting assembly (8) includes an annular magnet (802) sleeved on the outer side of the residual chlorine electrode (5) in a lifting and movable manner, an electromagnet (801) is fixedly arranged at the bottom of the flow cell (1) and located below the annular magnet (802), and a plurality of fixing sleeves (803) are fixedly sleeved on the outer side of the annular magnet (802).

3. An automatic residual chlorine monitor in water according to claim 2, characterized in that: The annular brushing assembly (10) includes an annular ring (1001) fixedly arranged inside the annular magnet (802), and a plurality of bristles (1002) for brushing and cooperating with the residual chlorine electrode (5) are fixedly arranged on the inner ring of the annular ring (1001).

4. An automatic residual chlorine monitor in water according to claim 3, characterized in that: The driving assembly (9) includes a driving ring (901) fixedly arranged on the outer side of the annular magnet (802), and a plurality of driving blades (902) are fixedly arranged on the outer side of the driving ring (901).

5. An automatic residual chlorine monitor in water according to claim 4, characterized in that: The water spraying mechanism (4) includes a mounting base (401) fixedly arranged on the side wall of the flow cell (1), a plurality of water spraying pipes (402) are fixedly penetrated through the inside of the mounting base (401), one ends of the plurality of water spraying pipes (402) extend to the inside of the flow cell (1), control valves (403) are arranged on the plurality of water spraying pipes (402), one ends of the plurality of water spraying pipes (402) are fixedly communicated with an intermediate pipe (404) located outside the flow cell (1) together, and an adding pipe (405) is communicated with the upper ends of the intermediate pipes (404) together.

6. An automatic residual chlorine monitor in water according to claim 5, characterized in that: An inlet valve (201) is arranged on the water inlet pipe (2), an outlet valve (301) is arranged on the water outlet pipe (3), and a filtering assembly (11) for cooperating with one ends of the water inlet pipe (2) and the water outlet pipe (3) respectively is arranged on the inner side wall of the flow cell (1).

7. An automatic residual chlorine monitor in water according to claim 6, characterized in that: The filtering assembly (11) includes a filtering plate (1101) fixedly arranged on the inner side wall of the flow cell (1) and cooperating with one ends of the water inlet pipe (2) and the water outlet pipe (3), a plurality of filtering holes (1102) are formed in the filtering plate (1101), and a plurality of positioning screws (1103) connected with the flow cell (1) are arranged on the edge of the filtering plate (1101).

8. An automatic residual chlorine monitor in water according to claim 7, characterized in that: A cover plate (12) is covered on the upper side of the flow cell (1), and a fixing base (501) connected with the residual chlorine electrode (5) is fixedly arranged at the center of the cover plate (12).

9. An automatic residual chlorine monitor in water according to claim 8, characterized in that: An acid inlet pipe (6) is fixedly communicated with the upper side of the cover plate (12), and an acid inlet valve (601) is arranged on the acid inlet pipe (6).

10. An automatic residual chlorine monitor in water according to any one of claims 1-9, characterized in that: A drain pipe (7) is fixedly communicated with the bottom of the flow cell (1), and a drain valve (701) is arranged on the drain pipe (7).

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