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CN-224216611-U - Absorption tower pH value measuring device with automatic flushing function

CN224216611UCN 224216611 UCN224216611 UCN 224216611UCN-224216611-U

Abstract

The application relates to the technical field of desulfurization slurry pH value measurement, in particular to an absorption tower pH value measurement device with an automatic flushing function, which comprises an inclined interface tube, a measurement assembly, a flushing assembly, a discharge assembly and a controller, wherein the inclined interface tube is connected with the measurement assembly; one end of the inclined interface tube is communicated with the lower outlet of the liquid storage tank of the absorption tower, the other end of the inclined interface tube is respectively communicated with the measuring assembly and the flushing assembly, the discharging assembly is communicated with the upper end of the measuring assembly, the measuring assembly is used for detecting the pH value of the desulfurization slurry in the absorption tower, the flushing assembly is used for flushing the measuring assembly, the discharging assembly is used for discharging flushing liquid of the flushing assembly, the middle section of the inclined interface tube is provided with an automatic inlet valve, a controller is electrically connected with the automatic inlet valve, the measuring assembly and the flushing assembly, the arranged pH value measuring device of the absorption tower is used for measuring the pH value of the slurry in real time, and the controller controls the flushing assembly to flush the measuring assembly according to the pH abnormal value, so that the automation of monitoring of the pH value of the slurry in the absorption tower is conveniently ensured, and the monitoring efficiency is improved.

Inventors

  • SONG MINJIE
  • LIU HUILING
  • ZHANG GUOLEI
  • XU DAYI
  • ZHANG LIANSHUANG
  • ZHANG MENG
  • QI HONGTAO

Assignees

  • 天津国投津能发电有限公司

Dates

Publication Date
20260508
Application Date
20250318

Claims (7)

  1. 1. The absorption tower pH value measuring device with the automatic flushing function is characterized by comprising an inclined interface tube (1), a measuring assembly (2), a flushing assembly (3), a discharging assembly (4) and a controller, wherein one end of the inclined interface tube (1) is communicated with a lower outlet of a liquid storage tank of an absorption tower, the other end of the inclined interface tube is respectively communicated with the measuring assembly (2) and the flushing assembly (3), the discharging assembly (4) is communicated with the upper end of the measuring assembly (2), the measuring assembly (2) is used for detecting the pH value of desulfurization slurry in the absorption tower, the flushing assembly (3) is used for flushing the measuring assembly (2), and the discharging assembly (4) is used for discharging flushing liquid of the flushing assembly (3); The middle section of the inclined interface tube (1) is provided with an inlet automatic valve (11), and the controller is electrically connected with the inlet automatic valve (11), the measuring assembly (2) and the flushing assembly (3).
  2. 2. The device for measuring the pH value of the absorption tower with the automatic flushing function according to claim 1, wherein the measuring assembly (2) comprises a pH measuring cup (21) and a pH meter (22), a slurry inlet is formed in the bottom of the pH measuring cup (21), one end, far away from the absorption tower, of the inclined interface tube (1) is communicated with the slurry inlet, a slurry outlet is formed in the position, close to the top, of the side wall of the pH measuring cup (21), and the discharging assembly (4) is communicated with the slurry outlet; The top of the pH measuring cup (21) is provided with a manual door (211), the pH meter (22) is inserted into the inner cavity of the pH measuring cup (21) after passing through the manual door (211), and the controller is electrically connected with the pH meter (22).
  3. 3. The absorption tower pH value measuring device with an automatic flushing function according to claim 2, wherein the flushing assembly (3) comprises a flushing pipe (31), a flushing pump (32) and an automatic flushing valve (33), one end of the flushing pipe (31) is communicated with one end side wall of the inclined interface pipe (1) far away from the absorption tower, the other end of the flushing pipe is communicated with an external water source, the flushing pump (32) is arranged on the flushing pipe (31), the flushing pump (32) is arranged close to the external water source, and the automatic flushing valve (33) is arranged at the middle section of the flushing pipe (31); The controller is electrically connected with the automatic flushing valve (33).
  4. 4. An absorption tower pH measuring apparatus with automatic flushing function according to claim 3, wherein the drain assembly (4) comprises a drain pipe (41), one end of the drain pipe (41) is communicated with a slurry outlet on the pH measuring cup (21), and the other end is communicated with a pit.
  5. 5. The device for measuring the pH value of the absorption tower with the automatic flushing function according to claim 1, further comprising an inlet manual valve (12), wherein the inlet manual valve (12) is arranged in the middle section of the inclined interface pipe (1), and the inlet manual valve (12) is positioned between the absorption tower and the inlet automatic valve (11).
  6. 6. The apparatus of claim 3, further comprising a manual flushing valve (34), wherein the manual flushing valve (34) is disposed in a middle section of the flushing pipe (31), and wherein the manual flushing valve (34) is disposed between the automatic flushing valve (33) and the flushing pump (32).
  7. 7. The device for measuring the pH value of an absorption tower with an automatic flushing function according to claim 4, wherein the pipe diameter of the drain pipe (41) is smaller than the pipe diameters of the inclined joint pipe (1) and the flushing pipe (31).

Description

Absorption tower pH value measuring device with automatic flushing function Technical Field The application relates to the technical field of desulfurization slurry pH value measurement, in particular to an absorption tower pH value measurement device with an automatic flushing function. Background The pH value of the slurry in the absorption tower in the desulfurization system is a core technical index of the desulfurization system, the pH value has great influence on the efficiency of the desulfurization system and gypsum generation, and the pH value of the slurry in the absorption tower needs to be detected in real time. Current pH meters drain slurry out of the absorber column, primarily through associated piping, and measure slurry inserted into the pH measuring cell through pH metering electrodes. The pH value of the slurry is generally 3.5-7, and when the pH value displayed by the pH measuring electrode exceeds the range, the pH measuring electrode is often influenced by the slurry to fail, and the accuracy of the measurement of the pH electrode is required to be ensured by flushing. In the prior art, the degree of automation of the pH measuring device is lower, various operations all need manual operation, whether the mark is abnormal or not can not be judged according to the pH value, and when a pipeline is blocked, whether flushing is carried out or not is determined by manually observing the pH value, so that the problem that the mark cannot be found in time exists. Meanwhile, the pH measuring tank is large in volume, and the slurry flow is large, so that the load of the pit pump is heavy, and the normal discharge of the slurry is influenced. Disclosure of utility model In order to overcome the problems, the application provides an absorption tower pH value measuring device with an automatic flushing function. The application provides an absorption tower pH value measuring device with an automatic flushing function, which adopts the following technical scheme: the absorption tower pH value measuring device with the automatic flushing function comprises an inclined interface pipe, a measuring assembly, a flushing assembly, a discharging assembly and a controller, wherein one end of the inclined interface pipe is communicated with a lower outlet of a liquid storage tank of an absorption tower, the other end of the inclined interface pipe is respectively communicated with the measuring assembly and the flushing assembly, and the discharging assembly is communicated with the upper end of the measuring assembly; The middle section of the inclined interface tube is provided with an inlet automatic valve, and the controller is electrically connected with the inlet automatic valve, the measuring assembly and the flushing assembly. By adopting the technical scheme, when the pH value of the slurry is required to be measured, the controller controls the inlet automatic valve to be opened, the slurry in the absorption tower flows into the measuring assembly through the inclined interface pipe, the measuring assembly measures the pH value of the slurry, the slurry continuously enters the measuring assembly and is discharged from the discharging assembly, the pH value is fed back to the controller in real time, when the pH value displayed by the measuring assembly exceeds the range, the controller controls the inlet automatic valve to be closed, the flushing assembly is opened, clear water is introduced into the measuring assembly by the flushing assembly, the measuring assembly is flushed, so that the sensitivity and the accuracy of the measuring assembly are ensured, and the clear water is discharged through the discharging assembly after the measuring assembly is cleaned. The pH value measuring device of the absorption tower is arranged, the measuring component measures the pH value of the slurry in real time, the controller controls the cleaning component to flush the measuring component according to the feedback abnormality of the pH value, the cleaning component is prevented from being flushed manually, the automation of monitoring the pH value of the slurry in the absorption tower is convenient to ensure, and the monitoring efficiency is improved. In a specific implementation mode, the measuring assembly comprises a pH measuring cup and a pH meter, wherein the bottom of the pH measuring cup is provided with a slurry inlet, one end of the inclined interface pipe, which is far away from the absorption tower, is communicated with the slurry inlet, the side wall of the pH measuring cup, which is close to the top, is provided with a slurry outlet, and the discharging assembly is communicated with the slurry outlet; The top of the pH measuring cup is provided with a manual door, the pH meter penetrates through the manual door and then is inserted into the inner cavity of the pH measuring cup, and the controller is electrically connected with the pH meter. Through adopting the technical scheme, the measurement