CN220019511U - PH detection device - Google Patents
PH detection device Download PDFInfo
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- CN220019511U CN220019511U CN202320600923.5U CN202320600923U CN220019511U CN 220019511 U CN220019511 U CN 220019511U CN 202320600923 U CN202320600923 U CN 202320600923U CN 220019511 U CN220019511 U CN 220019511U
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- pipe
- flushing
- detection
- meter
- slurry
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- 238000001514 detection method Methods 0.000 title claims abstract description 68
- 238000011010 flushing procedure Methods 0.000 claims abstract description 62
- 239000002002 slurry Substances 0.000 claims abstract description 49
- 239000007788 liquid Substances 0.000 claims abstract description 36
- 238000010992 reflux Methods 0.000 claims abstract description 26
- 230000003009 desulfurizing effect Effects 0.000 claims abstract description 15
- 239000008399 tap water Substances 0.000 claims description 4
- 235000020679 tap water Nutrition 0.000 claims description 4
- 239000010865 sewage Substances 0.000 abstract description 14
- 238000006477 desulfuration reaction Methods 0.000 description 13
- 230000023556 desulfurization Effects 0.000 description 13
- 238000005259 measurement Methods 0.000 description 6
- 239000002351 wastewater Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000004075 alteration Effects 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005070 sampling Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000019738 Limestone Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000006028 limestone Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000001139 pH measurement Methods 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model relates to the technical field of PH detection of slurry in a desulfurizing tower, and particularly discloses a PH detection device, which comprises a slurry outlet pipe arranged on one side of the desulfurizing tower, a controller, a drainage pump, a detection box, a reflux pump, a flushing mechanism and a slurry reflux pipe, wherein an inlet of the drainage pump is connected with the slurry outlet pipe, an outlet of the drainage pump is communicated with one side of the detection box through a first connecting pipe, a pH meter and a liquid level meter are arranged on the detection box, the bottom of the detection box is connected with the inlet of the reflux pump through a second connecting pipe, an outlet of the reflux pump is connected with the desulfurizing tower through the slurry reflux pipe, the flushing mechanism is respectively connected with the slurry outlet pipe, the second connecting pipe and the detection box, the bottom of the detection box is connected with a first sewage pipe, and one end of the slurry reflux pipe, which is close to the desulfurizing tower, is connected with a second sewage pipe. The utility model can effectively avoid the problem of scale damage in the pH meter tower, and the problem of scale blockage of the detection pipeline outside the tower is avoided by arranging the flushing mechanism, and meanwhile, the detection timeliness is improved by arranging the drainage pump.
Description
Technical Field
The utility model relates to the technical field of PH detection of desulfurizing tower slurry, in particular to a PH detection device.
Background
The wet desulfurization process mostly adopts alkaline slurry or solution as an absorbent, and adopts limestone or lime as a desulfurizing agent to forcedly desulfurize and oxidize, so that the wet desulfurization process is the most widely used desulfurization technology at present. The pH value of the desulfurization slurry is an important control parameter in desulfurization operation, and is an important factor affecting desulfurization efficiency and economy of the desulfurization device.
The traditional slurry pH measurement comprises direct measurement in a tower and sampling measurement outside the tower, wherein the direct measurement in the tower is easy to scale due to the fact that a pH meter is inserted into the slurry for a long time, the service life is short, and the pH meter is not easy to replace after being damaged; the sampling measurement outside the tower is to lead out a pipeline from the desulfurizing tower, and a pH meter is arranged on the pipeline, but because the slurry contains granular substances such as calcium sulfate, the circulation degree of liquid in the pipeline is not high, no cleaning measures are adopted, the blockage is easy to be caused, the numerical value detected by the pH meter is distorted, and the operation and maintenance cost is higher. The direct measurement mode in the tower is not commonly used at present, in order to solve the problem of blockage, a washing water system is arranged in the Chinese patent of the utility model of publication No. CN213275487U to wash a measurement box and an accessory pipeline so as to avoid the condition of blockage due to scaling, but the liquid circulation in the pipeline depends on gravity, the circulation speed is general, the detection timeliness is not high, the detected slurry directly enters a waste water pit, the desulfurization tower is not returned, and the waste degree is high.
Disclosure of Invention
The utility model aims to overcome the defects in the prior art and provide a PH detection device.
In order to achieve the above purpose, the utility model provides a PH detection device, which comprises a slurry liquid outlet pipe arranged on one side of a desulfurization tower, and further comprises a controller, a drainage pump, a detection box, a reflux pump, a flushing mechanism and a slurry reflux pipe, wherein an inlet of the drainage pump is connected with the slurry liquid outlet pipe, an outlet of the drainage pump is communicated with one side of the detection box through a first connecting pipe, a PH meter and a liquid level meter are arranged on the detection box, the bottom of the detection box is connected with an inlet of the reflux pump through a second connecting pipe, an outlet of the reflux pump is connected with the desulfurization tower through the slurry reflux pipe, control valves are arranged on the slurry liquid outlet pipe, the second connecting pipe and the slurry reflux pipe, the flushing mechanism is respectively connected with the slurry liquid outlet pipe, the second connecting pipe and the detection box, a first sewage pipe is connected with the bottom of the detection box, one end of the slurry reflux pipe close to the desulfurization tower is connected with a second sewage pipe, and the first sewage pipes and the second sewage pipes are respectively electrically connected with the drainage pump, the reflux pump, the control valve, the sewage valve, the pH meter and the liquid level meter.
Further, the flushing mechanism comprises a first flushing pipe connected with the slurry liquid outlet pipe, a second flushing pipe connected with the upper side of the detection box and a third flushing pipe connected with the second connecting pipe, wherein the other ends of the first flushing pipe, the second flushing pipe and the third flushing pipe are all connected with a tap water pipe, flushing valves are arranged on the first flushing pipe, the second flushing pipe and the third flushing pipe, the connection point of the first flushing pipe and the slurry liquid outlet pipe is positioned on the slurry liquid outlet pipe between the control valve and the drainage pump, the connection point of the third flushing pipe and the second connecting pipe is positioned on the second connecting pipe between the control valve and the reflux pump, and the flushing valves are electrically connected with the controller.
Further, the flushing mechanism further comprises a ring pipe arranged at the upper end of the detection box, a plurality of evenly distributed nozzles are arranged on the ring pipe, and the ring pipe is communicated with the second flushing pipe.
Further, the pH meter is arranged on one side of the first connecting pipe connected with the detection box, and the detection head of the pH meter corresponds to the pipe orifice position of the first connecting pipe connected with the detection box.
Further, the pH meter is installed at an angle of 65-85 deg.
Further, the detection box is a cylindrical detection box.
Further, the nozzle is a fan-shaped nozzle.
The beneficial effects are that: according to the utility model, the problem of scale damage in the tower of the pH meter can be effectively avoided by detecting the liquid outside the tower, meanwhile, the drainage pump is arranged to accelerate the slurry circulation, the detection timeliness is improved, the flushing mechanism is arranged to avoid the problem of scale blockage of a detection pipeline outside the tower, and the reflux pump and the slurry reflux pipe are arranged to recycle the slurry.
Drawings
FIG. 1 is a schematic view of a PH detection device according to an embodiment of the utility model;
fig. 2 is a schematic view of a grommet in a test tank according to an embodiment of the present utility model.
In the figure: 1. a desulfurizing tower; 2. a slurry outlet pipe; 3. a drainage pump; 4. a first connection pipe; 5. a detection box; 6. a second connection pipe; 7. a reflux pump; 8. a slurry return pipe; 9. a control valve; 10. a first drain pipe; 11. a second drain pipe; 12. a blow-down valve; 13. a pH meter; 14. a liquid level gauge; 15. a first flush tube; 16. a second flush tube; 17. a third flush tube; 18. a flush valve; 19. a tap water pipe; 20. a grommet; 21. a nozzle; 22. and (5) a waste water pit.
Detailed Description
The utility model will be further illustrated by the following drawings and specific examples, which are carried out on the basis of the technical solutions of the utility model, it being understood that these examples are only intended to illustrate the utility model and are not intended to limit the scope of the utility model.
As shown in fig. 1 to 2, an embodiment of the present utility model provides a PH detection apparatus, which includes a slurry outlet pipe 2 disposed at one side of a desulfurizing tower 1, and further includes a controller, a drainage pump 3, a detection tank 5, a reflux pump 7, a flushing mechanism, and a slurry reflux pipe 8.
The entrance of drainage pump 3 is connected thick liquid drain pipe 2, the export of drainage pump 3 and detection case 5 one side are through first connecting pipe 4 intercommunication, install pH meter 13 and level gauge 14 on the detection case 5, detection case 5 is the preferred cylindrical detection case, pH meter 13 installs in the one side that first connecting pipe 4 is connected with detection case 5, the detection head of pH meter 13 corresponds the mouth of pipe position that first connecting pipe 4 is connected with detection case 5, pH meter 13 slope installation, pH meter 13 installation angle is 65-85, the detection head of pH meter 13 just so can be fine in time detect the thick liquid that flows out from first connecting pipe 4.
The bottom of the detection box 5 is connected with the inlet of a reflux pump 7 through a second connecting pipe 6, and the outlet of the reflux pump 7 is connected with the desulfurizing tower 1 through a slurry reflux pipe 8. The slurry liquid outlet pipe 2, the second connecting pipe 6 and the slurry return pipe 8 are respectively provided with a control valve 9, the bottom of the detection box 5 is connected with a first sewage discharge pipe 10, one end of the slurry return pipe 8, which is close to the desulfurizing tower 1, is connected with a second sewage discharge pipe 11, sewage discharge valves 12 are respectively arranged on the first sewage discharge pipe 10 and the second sewage discharge pipe 11, and the first sewage discharge pipe 10 and the second sewage discharge pipe 11 are communicated with a wastewater pit 22. The controller is respectively and electrically connected with the drainage pump 3, the reflux pump 7, the flushing mechanism, the control valve 9, the blow-down valve 12, the pH meter 13 and the liquid level meter 14, the controller is not shown in the figure, the controller is preferably plc, and the controller can be in communication connection with an electric control system of the desulfurizing tower 1 when in use.
The flushing mechanism is respectively connected with the slurry outlet pipe 2, the second connecting pipe 6 and the detection box 5, specifically, the flushing mechanism comprises a first flushing pipe 15 connected with the slurry outlet pipe 2, a second flushing pipe 16 connected with the upper side of the detection box 5 and a third flushing pipe 17 connected with the second connecting pipe 6, and the other ends of the first flushing pipe 15, the second flushing pipe 16 and the third flushing pipe 17 are all connected with a tap water pipe 19. The first flushing pipe 15, the second flushing pipe 16 and the third flushing pipe 17 are respectively provided with a flushing valve 18, the connection point of the first flushing pipe 15 and the slurry liquid outlet pipe 2 is positioned on the slurry liquid outlet pipe 2 between the control valve 9 and the drainage pump 3, the connection point of the third flushing pipe 17 and the second connecting pipe 6 is positioned on the second connecting pipe 6 between the control valve 9 and the reflux pump 7, and the flushing valve 18 is electrically connected with the controller.
The flushing mechanism further comprises a ring pipe 20 arranged at the upper end of the detection box 5, a plurality of evenly distributed nozzles 21 are arranged on the ring pipe 20, the nozzles 21 are fan-shaped nozzles, and the ring pipe 20 is communicated with the second flushing pipe 16. The spraying direction of the nozzles 21 faces the inner wall of the detection box 5, and all spraying ranges of the nozzles 21 can cover the inner ring of the detection box 5, namely, the range of the inner wall of the detection box 5 polluted by slurry can be cleaned by water sprayed by the nozzles 21.
The drain pump 3, the return pump 7, the control valve 9, the drain valve 12, the flushing valve 18, the pH meter 13, the liquid level meter 14, the detection box 5 and the pipelines all need to have anti-corrosion characteristics, and specific material types and the like are selected according to actual practice.
When the device is used, the controller controls the control valve 9 on the slurry outlet pipe 2 to be opened and controls the drainage pump 3 to be started, the slurry reaches the detection box 5, the pH meter 13 transmits the detected pH parameter to the controller, the controller transmits the parameter to the electronic control system of the desulfurization tower 1, the liquid level meter 14 detects the slurry liquid level in the detection box 5 and transmits the liquid level data to the controller, when the liquid level reaches a starting set value, the controller controls the control valve 9 on the second connecting pipe 6 and the control valve 9 on the slurry return pipe 8 to be opened and controls the return pump 7 to be started, the slurry is discharged back to the desulfurization tower 1, if the liquid level is lower than the low set value, the return pump 7 is controlled to be stopped until the liquid level returns to the starting set value, and if the liquid level is higher than a warning set value (when the return pump 7 is damaged, the drainage pump 3 is controlled to be closed) and each control valve 9 is closed.
When the pipelines of the device need cleaning, the controller firstly controls the control valves 9 to be closed, then opens the drain valves 12, finally opens the flushing valve 18, and finally discharges the purified water into the pipelines and into the waste water pit 22, so that the pipelines and the detection box 5 are flushed.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that other parts not specifically described are within the prior art or common general knowledge to a person of ordinary skill in the art. Modifications and alterations may be made without departing from the principles of this utility model, and such modifications and alterations should also be considered as being within the scope of the utility model.
Claims (7)
1. The utility model provides a PH detection device, includes the thick liquid drain pipe of locating desulfurizing tower one side, its characterized in that still includes controller, drainage pump, detection case, backwash pump, flushing mechanism and thick liquid back flow, the entrance linkage thick liquid drain pipe of drainage pump, the export of drainage pump and detection case one side are through first connecting pipe intercommunication, install pH meter and level gauge on the detection case, the detection case bottom passes through the entrance linkage of second connecting pipe and backwash pump, the export of backwash pump passes through thick liquid back flow connection desulfurizing tower, all be equipped with the control valve on thick liquid drain pipe, second connecting pipe and the thick liquid back flow, flushing mechanism is connected with thick liquid drain pipe, second connecting pipe and detection case respectively, detection case bottom is connected with first blow off pipe, and the thick liquid back flow is close to the one end of desulfurizing tower and is connected with the second blow off pipe, all be equipped with the blow off valve on first blow off pipe and the second blow off pipe, the controller respectively with drainage pump, backwash pump, flushing mechanism, control valve, blow off valve, pH meter and level gauge electric connection.
2. The PH detecting device according to claim 1, wherein the flushing mechanism comprises a first flushing pipe connected with the slurry outlet pipe, a second flushing pipe connected with the upper side of the detecting tank, and a third flushing pipe connected with the second connecting pipe, the other ends of the first flushing pipe, the second flushing pipe and the third flushing pipe are all connected with the tap water pipe, flushing valves are arranged on the first flushing pipe, the second flushing pipe and the third flushing pipe, the connection point of the first flushing pipe and the slurry outlet pipe is positioned on the slurry outlet pipe between the control valve and the drainage pump, the connection point of the third flushing pipe and the second connecting pipe is positioned on the second connecting pipe between the control valve and the reflux pump, and the flushing valves are electrically connected with the controller.
3. The PH detecting device according to claim 2, wherein the flushing mechanism further comprises a collar arranged at the upper end of the detecting box, a plurality of evenly distributed nozzles are arranged on the collar, and the collar is communicated with the second flushing pipe.
4. The PH detecting device according to claim 1, wherein the PH meter is installed at a side where the first connection pipe is connected to the detecting tank, and the detecting head of the PH meter corresponds to a position of a pipe orifice where the first connection pipe is connected to the detecting tank.
5. The PH detection apparatus according to claim 4, wherein the PH meter is mounted at an angle of 65 ° to 85 °.
6. The PH detection apparatus according to claim 1, wherein the detection case is a cylindrical detection case.
7. The PH detection apparatus according to claim 3, wherein the nozzle is a fan-shaped nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320600923.5U CN220019511U (en) | 2023-03-24 | 2023-03-24 | PH detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320600923.5U CN220019511U (en) | 2023-03-24 | 2023-03-24 | PH detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220019511U true CN220019511U (en) | 2023-11-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320600923.5U Active CN220019511U (en) | 2023-03-24 | 2023-03-24 | PH detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220019511U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118688107A (en) * | 2024-06-04 | 2024-09-24 | 北京埃德泰克智能科技有限公司 | PH detection system and method |
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2023
- 2023-03-24 CN CN202320600923.5U patent/CN220019511U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118688107A (en) * | 2024-06-04 | 2024-09-24 | 北京埃德泰克智能科技有限公司 | PH detection system and method |
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