Online cleaning device for pH meter of high-density sedimentation tank

Abstract

The utility model relates to the technical field of PH meter cleaning, in particular to a high-density sedimentation tank PH meter on-line cleaning device which comprises a high-density sedimentation tank body, a cleaning mechanism is arranged on the high-density sedimentation tank body, and the cleaning mechanism comprises a supporting table fixedly installed on one side of the high-density sedimentation tank body. And an alkaline medicine box is fixedly mounted at the top of the supporting table. Through the arrangement of the cleaning mechanism, a conveying pump, an electromagnetic valve, a first electric telescopic rod and a cleaning brush are controlled through the PLC control console, after the PH meter body is used for a period of time, the PLC control console controls the first electric telescopic rod to automatically start to vertically ascend into a cleaning cylinder, alkaline chemical adding cleaning is conducted through an alkaline chemical box, and then the PH meter body is cleaned. The cleaning brush starts to rotate in the cleaning cylinder to clean the PH meter body for a certain time, and after a certain time interval, the control process is repeated, and the acid medicine box is started to clean with acid, so that electrode dirt blockage is effectively reduced, and the measurement precision is improved.

Description

Technical Field

[0001] This utility model relates to an online cleaning device for pH meters in high-density sedimentation tanks, belonging to the field of pH meter cleaning technology. Background Technology

[0002] In water treatment processes, high-density sedimentation tanks have strict requirements for controlling the pH value of the water. Firstly, the pH meter must provide continuous and accurate measurement data. Secondly, the pH value must be stable and free from significant errors, which could affect the colloidal reaction process between chemicals and impurities in the water, ultimately leading to reaction failure or unstable effluent quality. High-density reaction processes require adjustments to the dosage of relevant chemicals based on pH levels. Therefore, online pH meters are often used for continuous analysis and monitoring in such chemical processes. However, in practical applications, the addition of flocculants and coagulants often clogs the probe, resulting in inaccurate data.

[0003] After a period of use, pH meters accumulate a lot of mud and reagents, causing the pH composite glass electrode to become clogged. If the pH meter does not have a fully automatic cleaning function, it is difficult to guarantee the requirement of long-term continuous and stable operation. Due to the electrochemical characteristics of the pH meter, the sensor (electrode) installed in the reaction cell must be removed from the sample medium periodically for maintenance (including cleaning with cleaning water). However, the components in the existing fully automatic pH meter cleaning system (such as gas and water solenoid valves, control circuit boards and control chips) are all imported, which has the disadvantages of high price and untimely supply, seriously affecting the continuous and stable operation of the pH meter.

[0004] Therefore, there is an urgent need to improve the online cleaning device for pH meters in high-density sedimentation tanks to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this invention is to provide an online cleaning device for pH meters in high-density sedimentation tanks. Through the cleaning mechanism, a PLC control console controls the delivery pump, solenoid valve, first electric telescopic rod, and cleaning brush. After the pH meter body has been used for a period of time, the PLC control console automatically raises the first electric telescopic rod vertically into the cleaning cylinder. First, alkaline cleaning is performed using an alkaline chemical tank. Inside the cleaning cylinder, the cleaning brush rotates to clean the pH meter body for a certain period. After a certain interval, the above control process is repeated by opening the acidic chemical tank for acid cleaning. After a certain interval, the above control process is repeated by opening the clean water tank for rinsing with clean water. This periodic cleaning process—alkaline cleaning → acidic cleaning → clean water rinsing—reduces electrode clogging, improves measurement accuracy, and simultaneously reduces maintenance costs.

[0006] To achieve the above objectives, the main technical solutions adopted by this utility model include:

[0007] An online cleaning device for a pH meter in a high-density sedimentation tank includes a high-density sedimentation tank body. A cleaning mechanism is installed on the high-density sedimentation tank body. The cleaning mechanism includes a support platform fixedly installed on one side of the high-density sedimentation tank body. An alkaline reagent tank is fixedly installed on the top of the support platform. An acidic reagent tank is fixedly installed on one side of the alkaline reagent tank. A clear water tank is fixedly installed on one side of the acidic reagent tank. Multiple delivery pumps are fixedly installed on the surface of the support platform. The multiple delivery pumps are respectively connected to the alkaline reagent tank, the acidic reagent tank, and the clear water tank. One side of each delivery pump is fixed... A solenoid valve is installed. A cleaning cylinder is fixedly installed on one side of the support platform, located above the high-density sedimentation tank body. Multiple sensing probes are fixedly installed on the inner wall of the cleaning cylinder. Spray heads are installed below the sensing probes. Delivery pipes connected to the multiple solenoid valves are installed on two of the spray heads. Cleaning brushes are provided below the spray heads. A first fixing frame is fixedly installed on the top of the cleaning cylinder. A first electric telescopic rod is fixedly installed on the first fixing frame. A pH meter body is fixedly installed at the output end of the first electric telescopic rod. A PLC control console is installed on the support platform.

[0008] Preferably, a plurality of second fixing brackets are fixedly installed on the surface of the cleaning cylinder, a second electric telescopic rod is fixedly installed on the second fixing bracket, and a support rod that is movably connected to the cleaning cylinder is fixedly installed on the output end of the second electric telescopic rod, and the support rod is connected to the cleaning brush.

[0009] Preferably, multiple sliders are fixedly installed on the cleaning cylinder, and grooves are provided at the top and bottom of the support rod.

[0010] Preferably, a fixing frame is fixedly installed at one end of the support rod, a plurality of springs are fixedly installed inside the fixing frame, a locking rod is fixedly installed at one end of the spring, and a locking block is fixedly installed on one side of the cleaning brush.

[0011] Preferably, the diameter of the locking rod matches the inner diameter of the slot on the locking block, and one end of the locking rod is arc-shaped.

[0012] Preferably, a plurality of slide rails are fixedly installed on one side of the fixed frame, a support plate is slidably installed on the slide rails, an insert block is fixedly installed on the support plate, and a plurality of slots are provided on the insert block.

[0013] Preferably, a level gauge is fixedly installed on each of the alkaline medicine tank, the acidic medicine tank, and the clean water tank, and the output of the level gauge extends into the interior of the alkaline medicine tank, the acidic medicine tank, and the clean water tank.

[0014] This utility model has at least the following beneficial effects:

[0015] By setting up the cleaning mechanism, the PLC control console controls the delivery pump, solenoid valve, first electric telescopic rod, and cleaning brush. After the pH meter body has been used for a period of time, the PLC control console controls the first electric telescopic rod to automatically rise vertically into the cleaning cylinder. First, alkaline cleaning is performed by adding alkaline chemicals through the alkaline tank. Inside the cleaning cylinder, the cleaning brush starts to rotate and clean the pH meter body for a certain period of time. After a certain interval, the above control process is repeated by opening the acidic tank for acid cleaning. After a certain interval, the above control process is repeated by opening the clean water tank for rinsing with clean water. Relying on the periodic cleaning process of alkaline cleaning → acidic cleaning → clean water rinsing, electrode clogging is reduced, measurement accuracy is improved, and maintenance costs are reduced. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the cleaning cylinder of this utility model;

[0019] Figure 3 This is a schematic diagram showing the unfolded structure of the slider and groove of this utility model;

[0020] Figure 4 This is a schematic diagram illustrating the fixing frame and card block structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the spring and locking rod structure of this utility model.

[0022] In the diagram, 1. High-density sedimentation tank; 2. Cleaning mechanism; 3. Support platform; 4. Alkaline medicine tank; 5. Acidic medicine tank; 6. Clean water tank; 7. Transfer pump; 8. Solenoid valve; 9. Cleaning cylinder; 10. Sensor probe; 11. Nozzle; 12. Transfer pipe; 13. Cleaning brush; 14. First fixed frame; 15. First electric telescopic rod; 16. pH meter body; 17. PLC control console; 18. Second fixed frame; 19. Second electric telescopic rod; 20. Support rod; 21. Slider; 22. Slide groove; 23. Fixed frame; 24. Spring; 25. Clamping rod; 26. Clamping block; 27. Slide rail; 28. Support plate; 29. ​​Insert block; 30. Slot; 31. Level gauge. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0024] like Figures 1-5 As shown in this embodiment, an online cleaning device for a high-density sedimentation tank pH meter is provided.

[0025] An online cleaning device for pH meters in high-density sedimentation tanks includes a high-density sedimentation tank body 1, a cleaning mechanism 2 mounted on the high-density sedimentation tank body 1, a support platform 3 fixedly installed on one side of the high-density sedimentation tank body 1, an alkaline reagent tank 4 fixedly installed on the top of the support platform 3, an acidic reagent tank 5 fixedly installed on one side of the alkaline reagent tank 4, a clean water tank 6 fixedly installed on one side of the acidic reagent tank 5, and multiple delivery pumps 7 fixedly installed on the surface of the support platform 3. The multiple delivery pumps 7 are respectively connected to the alkaline reagent tank 4, the acidic reagent tank 5, and the clean water tank 6. A solenoid valve 8 is fixedly installed on one side of each delivery pump 7. A cleaning cylinder 9 is fixedly installed on one side of the support platform 3, located above the high-density sedimentation tank body 1. Multiple sensing probes 10 are fixedly installed on the inner wall of the cleaning cylinder 9. Spray nozzles 11 are installed below the sensing probes 10. Delivery pipes 12 connected to multiple solenoid valves 8 are installed on two spray nozzles 11. Cleaning brushes 13 are set below the spray nozzles 11. A first fixing frame 14 is fixedly installed on the top of the cleaning cylinder 9. A first electric telescopic rod 15 is fixedly installed on the first fixing frame 14. A pH meter body 16 is fixedly installed at the output end of the first electric telescopic rod 15. A PLC control console 17 is installed on the support platform 3. By setting up the cleaning mechanism 2, the PLC control console 17 controls the delivery pump 7, solenoid valve 8, first electric telescopic rod 15, and cleaning brush 13. After the pH meter body 16 has been used for a period of time, the PLC control console 17 controls the first electric telescopic rod 15 to automatically rise vertically into the cleaning cylinder 9. First, alkaline cleaning is performed by adding chemicals through the alkaline tank 4. Inside the cleaning cylinder 9, the cleaning brush 13 starts to rotate and clean the pH meter body 16 for a certain period of time. After a certain interval, the above control process is repeated by opening the acidic tank 5 to clean with acid. After a certain interval, the above control process is repeated by opening the clean water tank 6 to rinse with clean water. By relying on the periodic cleaning process of alkaline cleaning → acidic cleaning → clean water rinsing, electrode clogging is reduced, measurement accuracy is improved, and maintenance costs are reduced.

[0026] In this embodiment, as Figures 1-5As shown, multiple second fixing brackets 18 are fixedly installed on the surface of the cleaning cylinder 9. A second electric telescopic rod 19 is fixedly installed on the second fixing bracket 18. A support rod 20 that is movably connected to the cleaning cylinder 9 is fixedly installed on the output end of the second electric telescopic rod 19. The support rod 20 is connected to the cleaning brush 13. Multiple sliders 21 are fixedly installed on the cleaning cylinder 9. Slide grooves 22 are opened at the top and bottom of the support rod 20. A fixing frame 23 is fixedly installed at one end of the support rod 20. Multiple springs 24 are fixedly installed inside the fixing frame 23. A locking rod 25 is fixedly installed at one end of the spring 24. A locking block 26 is fixedly installed on one side of the cleaning brush 13. With the second fixed frame 18, the second electric telescopic rod 19, and the support rod 20, the two second electric telescopic rods 19 can be activated simultaneously to move the cleaning brush 13 via the support rod 20, thereby adjusting the distance between the two cleaning brushes 13 and facilitating better contact between the cleaning brushes 13 and the pH meter body 16 for cleaning. With the slider 21 and the groove 22, the slider 21 on the cleaning cylinder 9 is slidably installed in the groove 22 on the support rod 20. Under the sliding connection of the slider 21 and the groove 22, the friction between the support rod 20 and the cleaning cylinder 9 can be reduced, making the movement of the cleaning brush 13 smoother and reducing resistance. With the fixed frame 23, the spring 24, the locking rod 25, and the locking rod 26, the cleaning brush 13 and the support rod 20 are connected by the engagement of multiple locking rods 25 and locking blocks 26. Because it is a movable locking connection, the cleaning brush 13 can be disassembled from one end of the support rod 20, thereby facilitating the removal and cleaning of the cleaning brush 13.

[0027] In this embodiment, as Figures 1-5As shown, the diameter of the locking rod 25 matches the inner diameter of the slot on the locking block 26, and one end of the locking rod 25 is set to be arc-shaped. Multiple slide rails 27 are fixedly installed on one side of the fixed frame 23. A support plate 28 is slidably installed on the slide rail 27. An insert block 29 is fixedly installed on the support plate 28. Multiple slots 30 are opened on the locking block 26. A level gauge 31 is fixedly installed on the alkaline medicine tank 4, the acid medicine tank 5, and the clean water tank 6. The output of the level gauge 31 extends into the interior of the alkaline medicine tank 4, the acid medicine tank 5, and the clean water tank 6. By matching the diameter of the clamping rod 25 with the inner diameter of the groove on the clamping block 26, the connection between the clamping rod 25 and the clamping block 26 is made tighter, thereby maintaining the stability of the cleaning brush 13 and preventing it from shaking. At the same time, by making one end of the clamping rod 25 arc-shaped, the clamping block 26 can more easily squeeze one end of the clamping rod 25 during disassembly and assembly, making disassembly and assembly more convenient. Through the setting of the slide rail 27, support plate 28, insert block 29 and slot 30, after the fixing frame 23 and the clamping block 26 are combined, multiple insert blocks 29 are inserted into the slot 30 for riveting, which can further tighten the combined fixing frame 23 and the clamping block 26, and further prevent the clamping block 26 from falling off the fixing frame 23. Through the setting of the liquid level gauge 31, the liquid volume in the alkaline medicine tank 4, acidic medicine tank 5 and clean water tank 6 can be detected at any time, so as to add and replenish in time.

[0028] In this embodiment, as Figures 1-5 As shown in the figure, the working process of the online cleaning device for a high-density sedimentation tank pH meter provided in this embodiment is as follows:

[0029] The PLC control console 17 controls the delivery pump 7, solenoid valve 8, first electric telescopic rod 15, and cleaning brush 13. After the pH meter body 16 has been used for a period of time, the PLC control console 17 controls the first electric telescopic rod 15 to automatically rise vertically into the cleaning cylinder 9. At this time, the sensing probe 10 detects that the pH meter body 16 has reached the cleaning cylinder 9. First, alkaline cleaning is performed by adding alkaline chemicals through the alkaline chemical tank 4. The alkaline solution is sprayed onto the pH meter body 16 by the delivery pump 7, solenoid valve 8, delivery pipe 12, and nozzle 11. Then, the cleaning brush 13 starts to rotate inside the cleaning cylinder 9 to clean the pH meter body 16 for a certain period of time. After a certain interval, the above control process is repeated by opening the acid chemical tank 5 to clean with acid. After a certain interval, the above control process is repeated by opening the clean water tank 6 to rinse with clean water. By relying on the periodic cleaning process of alkaline cleaning → acid cleaning → clean water rinsing, electrode clogging is reduced, measurement accuracy is improved, and maintenance costs are reduced.

Claims

1. An online cleaning device for pH meters in high-density sedimentation tanks, comprising a high-density sedimentation tank body (1), characterized in that: A cleaning mechanism (2) is provided on the high-density sedimentation tank body (1). The cleaning mechanism (2) includes a support platform (3) fixedly installed on one side of the high-density sedimentation tank body (1). An alkaline chemical tank (4) is fixedly installed on the top of the support platform (3). An acidic chemical tank (5) is fixedly installed on one side of the alkaline chemical tank (4). A clear water tank (6) is fixedly installed on one side of the acidic chemical tank (5). Multiple delivery pumps (7) are fixedly installed on the surface of the support platform (3). The multiple delivery pumps (7) are respectively connected to the alkaline chemical tank (4), the acidic chemical tank (5), and the clear water tank (6). A solenoid valve (8) is fixedly installed on one side of each delivery pump (7). A solenoid valve (8) is fixedly installed on one side of the support platform (3). A cleaning cylinder (9) is located above the high-density sedimentation tank body (1). Multiple sensing probes (10) are fixedly installed on the inner wall of the cleaning cylinder (9). A nozzle (11) is installed below the sensing probe (10). A delivery pipe (12) connected to multiple solenoid valves (8) is installed on two of the nozzles (11). A cleaning brush (13) is provided below the nozzle (11). A first fixing frame (14) is fixedly installed on the top of the cleaning cylinder (9). A first electric telescopic rod (15) is fixedly installed on the first fixing frame (14). A pH meter body (16) is fixedly installed at the output end of the first electric telescopic rod (15). A PLC control console (17) is installed on the support platform (3).

2. The online cleaning device for a high-density sedimentation tank pH meter according to claim 1, characterized in that: Multiple second fixing brackets (18) are fixedly installed on the surface of the cleaning cylinder (9). A second electric telescopic rod (19) is fixedly installed on the second fixing bracket (18). A support rod (20) that is movably connected to the cleaning cylinder (9) is fixedly installed on the output end of the second electric telescopic rod (19). The support rod (20) is connected to the cleaning brush (13).

3. The online cleaning device for a high-density sedimentation tank pH meter according to claim 2, characterized in that: Multiple sliders (21) are fixedly installed on the cleaning cylinder (9), and grooves (22) are provided at the top and bottom of the support rod (20).

4. The online cleaning device for a high-density sedimentation tank pH meter according to claim 3, characterized in that: A fixed frame (23) is fixedly installed at one end of the support rod (20), and multiple springs (24) are fixedly installed inside the fixed frame (23). A clamping rod (25) is fixedly installed at one end of the spring (24), and a clamping block (26) is fixedly installed on one side of the cleaning brush (13).

5. The online cleaning device for a high-density sedimentation tank pH meter according to claim 4, characterized in that: The diameter of the lever (25) matches the inner diameter of the slot on the block (26), and one end of the lever (25) is arc-shaped.

6. The online cleaning device for a high-density sedimentation tank pH meter according to claim 5, characterized in that: Multiple slide rails (27) are fixedly installed on one side of the fixed frame (23), a support plate (28) is slidably installed on the slide rails (27), a plug (29) is fixedly installed on the support plate (28), and multiple slots (30) are opened on the card block (26).

7. The online cleaning device for a high-density sedimentation tank pH meter according to claim 1, characterized in that: A level gauge (31) is fixedly installed on each of the alkaline medicine tank (4), the acidic medicine tank (5), and the clean water tank (6), and the output of the level gauge (31) extends into the interior of the alkaline medicine tank (4), the acidic medicine tank (5), and the clean water tank (6).

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