Absorption tower pH value measuring device with automatic flushing function

Abstract

The utility model relates to the technical field of desulfurization slurry pH value measurement, in particular to an absorption tower pH value measuring device with an automatic flushing function, which comprises an inclined connector pipe, a measuring assembly, a flushing assembly, a discharging assembly and a controller, one end of the inclined connector pipe is communicated with a lower outlet of the absorption tower liquid storage tank, and the other end of the inclined connector pipe is respectively communicated with the measuring component and the flushing component; the measuring assembly is used for detecting the pH value of desulfurization slurry in the absorption tower, and the flushing assembly is used for flushing the measuring assembly; the discharging assembly is used for discharging flushing fluid of the flushing assembly; an automatic inlet valve is arranged at the middle section of the inclined connector pipe, and the controller is electrically connected with the automatic inlet valve, the measuring assembly and the flushing assembly; the absorption tower pH value measuring device is arranged, the measuring assembly measures the pH value of the slurry in real time, the controller controls the cleaning assembly to wash the measuring assembly according to the pH abnormal value, it is convenient to guarantee automatic monitoring of the pH value of the slurry in the absorption tower, and the monitoring efficiency is improved.

Description

Technical Field

[0001] This application relates to the field of pH measurement technology for desulfurization slurry, and in particular to a pH measurement device for an absorption tower with an automatic flushing function. Background Technology

[0002] The pH value of the absorber slurry in a desulfurization system is a core technical indicator. The pH value significantly impacts the system's efficiency and gypsum formation, necessitating real-time monitoring of the absorber slurry's pH. Current pH meters primarily use pipelines to guide the slurry outside the absorber, and pH measuring electrodes are inserted into a pH measurement tank to measure the slurry's pH. The slurry's pH value is typically between 3.5 and 7. When the pH value displayed by the measuring electrode exceeds this range, it often indicates that the electrode has malfunctioned due to the slurry's influence, requiring flushing to ensure accurate pH measurements.

[0003] In existing technologies, pH measuring devices have a low degree of automation, requiring manual operation for all aspects. They cannot determine whether anomalies exist based on pH levels, and rely on manual observation of pH values ​​to decide whether flushing is necessary when pipelines are blocked, leading to delays in detection. Furthermore, the large volume of the pH measuring tank and the high flow rate of the slurry place a heavy load on the sump pump, affecting the normal discharge of the slurry. Utility Model Content

[0004] To overcome the above problems, this application provides a pH measuring device for an absorption tower with an automatic flushing function.

[0005] The pH measuring device for an absorption tower with automatic flushing function provided in this application adopts the following technical solution:

[0006] A pH measuring device for an absorber tower with an automatic flushing function includes: an inclined interface pipe, a measuring component, a flushing component, a discharge component, and a controller; one end of the inclined interface pipe is connected to the lower outlet of the absorber tower's storage tank, and the other end is connected to both the measuring component and the flushing component; the discharge component is connected to the upper end of the measuring component; the measuring component is used to detect the pH value of the desulfurization slurry inside the absorber tower, the flushing component is used to flush the measuring component, and the discharge component is used to discharge the flushing liquid from the flushing component;

[0007] An automatic inlet valve is provided in the middle section of the inclined interface pipe, and the controller is electrically connected to the automatic inlet valve, the measuring component, and the flushing component.

[0008] By adopting the above technical solution, when the pH value of the slurry needs to be measured, the controller controls the inlet automatic valve to open, and the slurry in the absorption tower flows into the measuring component through the inclined interface pipe. The measuring component measures the pH value of the slurry. The slurry continuously enters the measuring component and is discharged from the discharge component, and the pH value is fed back to the controller in real time. When the pH value displayed by the measuring component is out of range, the controller controls the inlet automatic valve to close and the flushing component to open. The flushing component introduces clean water into the measuring component to flush it, ensuring the sensitivity and accuracy of the measuring component. After cleaning the measuring component, the clean water is discharged through the discharge component. The installed pH measuring device in the absorption tower measures the pH value of the slurry in real time. The controller controls the cleaning component to flush the measuring component based on the abnormal pH value feedback, avoiding manual flushing of the cleaning component, facilitating the automation of pH value monitoring of the slurry in the absorption tower, and improving monitoring efficiency.

[0009] In one specific implementation, the measuring component includes a pH measuring cup and a pH meter. The bottom of the pH measuring cup is provided with a slurry inlet. The end of the inclined interface pipe away from the absorption tower is connected to the slurry inlet. The side wall of the pH measuring cup is provided with a slurry outlet near the top. The discharge component is connected to the slurry outlet.

[0010] The pH measuring cup is equipped with a manual door at the top, and the pH meter is inserted into the inner cavity of the pH measuring cup after passing through the manual door; the controller is electrically connected to the pH meter.

[0011] By adopting the above technical solution, the measurement component is configured such that when measuring the pH value of the slurry, the slurry flows out from the absorption tower, passes through the inclined interface pipe, and enters the pH measuring cup from the slurry inlet. The pH meter is inserted into the pH measuring cup to measure the pH value in real time. After the slurry accumulates to a certain amount in the pH measuring cup, it is discharged from the slurry outlet along the discharge component. The manual door set on the top of the pH measuring cup allows the pH meter to be inserted and removed from the pH measuring cup by opening or closing the manual door, thus facilitating the replacement or maintenance of the pH meter. At the same time, the pH meter feeds back the pH measurement value to the controller in real time. The controller can control the flushing component to flush the measurement component, thus facilitating the automatic flushing of the measurement component.

[0012] In one specific implementation, the flushing assembly includes a flushing pipe, a flushing pump, and an automatic flushing valve. One end of the flushing pipe is connected to the side wall of the inclined interface pipe away from the absorption tower, and the other end is connected to an external water source. The flushing pump is installed on the flushing pipe and is located close to the external water source. The automatic flushing valve is located in the middle section of the flushing pipe.

[0013] The controller is electrically connected to the automatic flushing valve.

[0014] By adopting the above technical solution, the flushing assembly is designed so that when the measuring assembly needs to be flushed, the controller first controls the automatic inlet valve to close and the automatic flushing valve to open. The flushing pump pumps clean water from the external water source from the flushing pipe to the inclined interface pipe. The clean water enters the pH measuring cup from the inclined interface pipe to flush the pH meter, which facilitates the automatic cleaning of the measuring assembly.

[0015] In one specific implementation, the discharge assembly includes a drain pipe, one end of which is connected to the slurry outlet on the pH measuring cup, and the other end of which is connected to a pit.

[0016] By adopting the above technical solution and setting up the discharge component, the slurry or clean water in the pH measuring cup accumulates to a certain height and then enters the drain pipe from the slurry outlet, and overflows naturally into the pit through the drain pipe, which facilitates the discharge of slurry or clean water.

[0017] In one specific implementation scheme, an inlet manual valve is also included, which is located in the middle section of the inclined interface pipe and between the absorption tower and the inlet automatic valve.

[0018] By adopting the above technical solution, the inlet manual valve can be manually closed when the inlet automatic valve is damaged, thus isolating the slurry and facilitating the maintenance of the inlet automatic valve.

[0019] In one specific implementation, a manual flushing valve is also included, which is disposed in the middle section of the flushing pipe and is located between the automatic flushing valve and the flushing pump.

[0020] By adopting the above technical solution, the manual flushing valve can be manually closed when the automatic flushing valve is damaged, thus isolating the clean water by the manual flushing valve and facilitating the maintenance of the automatic flushing valve.

[0021] In one specific implementation, the diameter of the drain pipe is smaller than the diameter of the oblique interface pipe and the flushing pipe.

[0022] By adopting the above technical solution, the diameter of the drainage pipe is smaller than that of the inclined interface pipe and the flushing pipe. When the slurry or clean water enters the drainage pipe from the pH measuring cup, the flow rate of the slurry or clean water in the drainage pipe is reduced, which makes it easier to reduce the discharge of slurry and clean water in the ditch, thereby reducing the workload of the sump pump and achieving the energy-saving effect of the sump pump.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. The pH measuring device installed in the absorption tower measures the pH value of the slurry in real time. The controller controls the cleaning component to flush the measuring component based on the feedback of pH value anomalies, avoiding manual flushing of the cleaning component, facilitating the automation of pH value monitoring of the slurry in the absorption tower, and improving monitoring efficiency.

[0025] 2. The inlet manual valve and manual flushing valve are provided so that they can be manually closed when the inlet automatic valve or automatic flushing valve is damaged, which facilitates the maintenance of the inlet automatic valve or automatic flushing valve.

[0026] 3. The diameter of the drain pipe is smaller than that of the inclined interface pipe and the flushing pipe. When the slurry or clean water enters the drain pipe from the pH measuring cup, the flow rate of the slurry or clean water in the drain pipe is reduced, which helps to reduce the discharge of slurry and clean water in the ditch, thereby reducing the workload of the sump pump and achieving the energy-saving effect of the sump pump. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of an absorption tower pH measuring device with automatic flushing function according to this application.

[0028] Figure 2 This is an automatic flushing flow diagram of an absorption tower pH measuring device with automatic flushing function according to this application.

[0029] Explanation of reference numerals in the attached drawings: 1. Angled interface pipe; 11. Automatic inlet valve; 12. Manual inlet valve; 2. Measuring assembly; 21. pH measuring cup; 211. Manual door; 22. pH meter; 3. Flushing assembly; 31. Flushing pipe; 32. Flushing pump; 33. Automatic flushing valve; 34. Manual flushing valve; 4. Discharge assembly; 41. Drain pipe. Detailed Implementation

[0030] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0031] This application discloses a pH measuring device for an absorption tower with an automatic flushing function.

[0032] Reference Figure 1An absorber pH measuring device with automatic flushing function includes: an inclined interface pipe 1, a measuring component 2, a flushing component 3, a discharge component 4, and a controller (not shown in the figure); one end of the inclined interface pipe 1 is connected to the lower outlet of the absorber storage tank, and the other end is connected to the measuring component 2 and the flushing component 3 respectively; the lowest liquid level of the absorber is higher than the highest position of the inclined interface pipe 1; an inlet automatic valve 11 is provided in the middle section of the inclined interface pipe 1. The measuring component 2 includes a pH measuring cup 21 and a pH meter 22. The pH measuring cup 21 has a slurry inlet at its bottom, and the end of the inclined interface pipe 1 away from the absorption tower is connected to the slurry inlet. The side wall of the pH measuring cup 21 has a slurry outlet near the top, and the discharge component 4 is connected to the slurry outlet. The top of the pH measuring cup 21 has a manual door 211, and the pH meter 22 passes through the manual door 211 and is inserted into the inner cavity of the pH measuring cup 21. The flushing component 3 includes a flushing pipe 31, a flushing pump 32, and an automatic flushing valve 33. One end of the flushing pipe 31 is connected to the side wall of the inclined interface pipe 1 away from the absorption tower, and the other end is connected to an external water source. The flushing pump 32 is installed on the flushing pipe 31 and is located near the external water source. The automatic flushing valve 33 is located in the middle section of the flushing pipe 31. The discharge component 4 includes a drain pipe 41, one end of which is connected to the slurry outlet on the pH measuring cup 21, and the other end is connected to a pit.

[0033] Reference Figure 1 It also includes an inlet manual valve 12 and a manual flushing valve 34. The inlet manual valve 12 is located in the middle section of the inclined interface pipe 1, and is situated between the absorption tower and the inlet automatic valve 11. The manual flushing valve 34 is located in the middle section of the flushing pipe 31, and is situated between the automatic flushing valve 33 and the flushing pump 32. In the event of damage to the inlet automatic valve 11 or the automatic flushing valve 33, the inlet manual valve 12 or the manual flushing valve 34 can be manually closed, facilitating maintenance of the inlet automatic valve 11 or the automatic flushing valve 33.

[0034] Specifically, the controller is electrically connected to the inlet automatic valve 11, pH meter 22, and automatic flushing valve 33, respectively. Through DCS or PLC programming, it can realize automatic monitoring and flushing functions. When monitoring the pH value of the slurry in the absorption tower, the controller controls the inlet automatic valve 11 to open and the automatic flushing valve to close. The slurry flows out of the absorption tower, passes through the inclined interface pipe 1, and enters the pH measuring cup 21 from the slurry inlet. The pH meter 22 extends into the pH measuring cup 21 to measure the pH value in real time. After the slurry accumulates to a certain amount in the pH measuring cup 21, it enters the drain pipe 41 from the slurry outlet and overflows naturally from the drain pipe 41 to the pit for discharge. During this process, the pH meter 22 monitors the pH value of the slurry in real time and feeds it back to the controller. When the pH value is less than 3.5 or greater than 7, the measuring component 2 needs to be cleaned. The controller controls the inlet automatic valve 11 to close and the automatic flushing valve 33 to open. Under the action of the flushing pump 32, clean water is pumped from the flushing pipe 31 into the inclined interface pipe 1 and enters the pH measuring cup 21 from the inclined interface pipe 1 to flush the pH meter 22. At the same time, the collected clean water enters the drain pipe 41 from the slurry outlet and overflows naturally from the drain pipe 41 into the pit for discharge.

[0035] In particular, the diameter of the drain pipe 41 is smaller than that of the inclined interface pipe 1 and the flushing pipe 31. When the slurry or clean water enters the drain pipe 41 from the pH measuring cup 21, the flow rate of the slurry or clean water in the drain pipe 41 is reduced, which makes it easier to reduce the discharge of slurry or clean water in the ditch, thereby reducing the workload of the sump pump and achieving the energy-saving effect of the sump pump.

[0036] Reference Figure 2 The implementation principle of the pH measuring device for an absorption tower with automatic flushing function in this application embodiment is as follows: First, the cycle time and flushing time are input into the controller. When the automatic flushing program is activated, the pH meter 22 continuously judges the pH value. When pH>7 or pH<3.5, the automatic flushing mode is activated. When the automatic flushing program starts, the controller issues a command to close the inlet automatic valve 11 and the automatic flushing valve 33. After the valves are closed, a command to open the automatic flushing valve 33 is issued to start flushing the pH meter 22 and the pipeline. After the flushing time reaches the set time, the automatic flushing valve 33 is closed and the inlet automatic valve 11 is opened. The cycle timer is reset at this time and the timing starts again. The program is executed again after the cycle time is reached. The cycle timer can be manually input; when the automatic flushing program is not activated, each valve can be operated manually individually.

[0037] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A pH measuring device for an absorption tower with an automatic flushing function, characterized in that, include: The system comprises an inclined interface pipe (1), a measuring component (2), a flushing component (3), a discharge component (4), and a controller; one end of the inclined interface pipe (1) is connected to the lower outlet of the absorption tower storage tank, and the other end is connected to the measuring component (2) and the flushing component (3), respectively; the discharge component (4) is connected to the upper end of the measuring component (2); the measuring component (2) is used to detect the pH value of the desulfurization slurry inside the absorption tower, the flushing component (3) is used to flush the measuring component (2), and the discharge component (4) is used to discharge the flushing liquid from the flushing component (3); An inlet automatic valve (11) is provided in the middle section of the oblique interface pipe (1), and the controller is electrically connected to the inlet automatic valve (11), the measuring component (2) and the flushing component (3).

2. The pH measuring device for an absorption tower with automatic flushing function according to claim 1, characterized in that: The measuring component (2) includes a pH measuring cup (21) and a pH meter (22). The pH measuring cup (21) has a slurry inlet at the bottom. The inclined interface pipe (1) is connected to the slurry inlet at the end away from the absorption tower. The pH measuring cup (21) has a slurry outlet on its side wall near the top. The discharge component (4) is connected to the slurry outlet. The pH measuring cup (21) is provided with a manual door (211) at the top, and the pH meter (22) is inserted into the inner cavity of the pH measuring cup (21) after passing through the manual door (211); the controller is electrically connected to the pH meter (22).

3. The pH measuring device for an absorption tower with automatic flushing function according to claim 2, characterized in that: The flushing assembly (3) includes a flushing pipe (31), a flushing pump (32), and an automatic flushing valve (33). One end of the flushing pipe (31) is connected to the side wall of the inclined interface pipe (1) away from the absorption tower, and the other end is connected to an external water source. The flushing pump (32) is installed on the flushing pipe (31) and is located close to the external water source. The automatic flushing valve (33) is located in the middle section of the flushing pipe (31). The controller is electrically connected to the automatic flushing valve (33).

4. The pH measuring device for an absorption tower with automatic flushing function according to claim 3, characterized in that: The discharge assembly (4) includes a drain pipe (41), one end of which is connected to the slurry outlet on the pH measuring cup (21), and the other end is connected to the pit.

5. The pH measuring device for an absorption tower with automatic flushing function according to claim 1, characterized in that: It also includes an inlet manual valve (12), which is located in the middle section of the inclined interface pipe (1) and is located between the absorption tower and the inlet automatic valve (11).

6. The pH measuring device for an absorption tower with automatic flushing function according to claim 3, characterized in that: It also includes a manual flushing valve (34), which is located in the middle section of the flushing pipe (31) and between the automatic flushing valve (33) and the flushing pump (32).

7. The pH measuring device for an absorption tower with automatic flushing function according to claim 4, characterized in that: The diameter of the drain pipe (41) is smaller than the diameter of the oblique interface pipe (1) and the flushing pipe (31).

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