CN214844153U - Sampling pipe is got to desulfurization absorption tower thick liquid PH meter - Google Patents
Sampling pipe is got to desulfurization absorption tower thick liquid PH meter Download PDFInfo
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- CN214844153U CN214844153U CN202023252258.0U CN202023252258U CN214844153U CN 214844153 U CN214844153 U CN 214844153U CN 202023252258 U CN202023252258 U CN 202023252258U CN 214844153 U CN214844153 U CN 214844153U
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Abstract
A sampling tube for measuring a PH value of slurry in a desulfurization absorption tower belongs to the technical field of wet desulfurization monitoring. The utility model discloses a first sampling tube, second sampling tube, sample are responsible for and the back flow, are equipped with first ooff valve, first drainage valve, first desulfurization circulating pump and first sample valve on the first sampling tube, are equipped with second ooff valve, second drainage valve, second desulfurization circulating pump and second sample valve on the second sampling tube, and the sample is responsible for and is connected with the flushing pipe. The utility model discloses in, first sampling tubeThe position of the joint of the desulfurization absorption tower, the position of the joint of the second sampling tube and the desulfurization absorption tower and the position of the joint of the backflow tube and the desulfurization absorption tower are all lower than the liquid level of slurry in the desulfurization absorption tower, SO that the slurry flowing through the first PH meter electrode and the second PH meter electrode in the sampling main tube is directly sent to the spray pipe nozzle to participate in SO2The flue gas absorbs the reacted slurry, so that the measured values of the first PH meter and the second PH meter are the most real-time and most timely working condition values.
Description
Technical Field
The utility model belongs to the technical field of wet flue gas desulfurization monitoring, specifically relate to a desulfurization absorption tower thick liquid PH meter measurement sampling pipe.
Background
The PH meter is an important measuring instrument for controlling the desulfurization efficiency in the wet desulfurization project and is used for monitoring the SO in the desulfurization absorption tower2The flue gas absorbs the PH of the reacted slurry. In the existing wet desulphurization project, the PH meter sampling mostly adopts a direct plug-in mode, namely, an electrode of the PH meter is inserted into a slurry pool of a desulphurization absorption tower. After the PH meter is installed by adopting the mode, the problems of abrasion, scouring and the like do not occur basically, and the service life of the PH meter electrode can be effectively prolonged.
However, the slurry in the desulfurization absorption tower flows slowly, the measurement accuracy of the pH meter is poor, and the hysteresis is large. The PH meter electrode is directly inserted into a slurry tank of the desulfurization absorption tower, and during the process of maintenance, when the PH meter electrode is pulled out, slurry can leak out, the environment is polluted, and the maintenance workload is increased; moreover, the PH meter electrode can be washed only after the PH meter is disassembled, so that the disassembly and the assembly are complex and the operation is inconvenient.
Therefore, a new solution is needed to solve this problem.
Disclosure of Invention
The utility model mainly solves the technical problem existing in the prior art and provides a sampling tube for measuring and measuring the pH value of slurry in a desulfurization absorption tower.
The above technical problem of the present invention can be solved by the following technical solutions: a sampling pipe for measuring and measuring the PH value of slurry in a desulfurization absorption tower comprises a first sampling pipe, a second sampling pipe, a sampling main pipe and a backflow pipe, wherein one end of the first sampling pipe is connected with the desulfurization absorption tower, one end of the second sampling pipe is connected with the desulfurization absorption tower, the other end of the first sampling pipe and the other end of the second sampling pipe are mutually converged and then connected with one end of the sampling main pipe, the other end of the sampling main pipe is connected with one end of the backflow pipe, the other end of the backflow pipe is connected with the desulfurization absorption tower, and the positions of the connection part of the first sampling pipe and the desulfurization absorption tower, the connection part of the second sampling pipe and the desulfurization absorption tower and the connection part of the backflow pipe and the desulfurization absorption tower are all lower than the liquid level of the slurry in the desulfurization absorption tower; the device comprises a first sampling pipe, a second sampling pipe, a first PH meter electrode vertical installation pipe, a second PH meter electrode vertical installation pipe, a flushing pipe and a second sampling valve, wherein the first sampling pipe is sequentially provided with the first switch valve, the first drain valve, the first desulfurization circulating pump and the first sampling valve, the second sampling pipe is sequentially provided with the second switch valve, the second drain valve, the second desulfurization circulating pump and the second sampling valve, the sampling main pipe is provided with the first PH meter electrode vertical installation pipe and the second PH meter electrode vertical installation pipe, the first PH meter electrode vertical installation pipe is connected with the first PH meter electrode in an inserting mode, the second PH meter electrode vertical installation pipe is connected with the second PH meter electrode in an inserting mode, the sampling main pipe is connected with the flushing pipe, and the flushing valve is arranged on the flushing pipe.
Preferably, the return pipe is provided with a first maintenance isolating valve.
Preferably, a second overhauling isolation valve is arranged on the second sampling pipe and is positioned at the downstream of the second sampling valve.
Preferably, the sampling main pipe is provided with an exhaust valve.
The utility model discloses beneficial effect who has: the utility model discloses in, the position of first sampling tube and desulfurization absorption tower junction, second sampling tube and desulfurization absorption tower junction, the position of back flow and desulfurization absorption tower junction all are less than the liquid level of thick liquid in the desulfurization absorption tower for the thick liquid of the interior source uninterrupted first PH meter electrode of interior source, second PH meter electrode is directly sent to the shower nozzle and participates in SO to the thick liquid of sample person in charge2The flue gas absorbs the reacted slurry, so that the measured values of the first PH meter and the second PH meter are the most real-time and most timely working condition values. The utility model discloses a set up the flushing pipe, the tip of flushing pipe lets in the sparge water, can wash first PH meter electrode and second PH meter electrode, need not to dismantle, and convenient operation. The utility model discloses an adjust the aperture that first maintenance isolating valve and second overhauld the isolating valve and control the velocity of flow of thick liquid in the sample main pipe, reduce to first PH meter electrode andand the abrasion of the second PH meter electrode ensures the service life of the first PH meter electrode and the second PH meter electrode.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. a first sampling tube; 2. a second sampling tube; 3. a sampling main pipe; 4. a return pipe; 5. a first on-off valve; 6. a first drain valve; 7. a first desulfurization circulating pump; 8. a first sampling valve; 9. a second on-off valve; 10. a second drain valve; 11. a second desulfurization circulating pump; 12. a second sampling valve; 13. a first pH meter electrode; 14. a second pH meter electrode; 15. a flush tube; 16. a flush valve; 17. a first service isolation valve; 18. a second service isolation valve; 19. an exhaust valve; 20. a first PH meter electrode is vertically provided with a tube; 21. the second PH meter electrode was mounted vertically on the tube.
Detailed Description
The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings.
Example (b): the utility model provides a desulfurization absorption tower thick liquid PH meter gets sample tube, as shown in fig. 1 for desulfurization absorption tower, be responsible for 3 and back flow 4 including first sampling tube 1, second sampling tube 2, sample, the one end of first sampling tube 1 is connected with the desulfurization absorption tower, the one end of second sampling tube 2 is connected with the desulfurization absorption tower, the other end of first sampling tube 1 and the other end of second sampling tube 2 are connected with the one end of being responsible for 3 with the sample after gathering mutually, the other end that the sample was responsible for 3 is connected with back flow 4, the other end of back flow 4 is connected with the desulfurization absorption tower, is equipped with in the desulfurization absorption tower to be used for with SO and is connected with the one end of being responsible for 3 with the sample2The slurry of flue gas absorption reaction, the position of first sampling tube 1 and desulfurization absorption tower junction, the position of second sampling tube 2 and desulfurization absorption tower junction, the position of back flow 4 and desulfurization absorption tower junction all are less than the liquid level of the interior slurry of desulfurization absorption tower.
The first sampling pipe 1 is provided with a first switch valve 5, a first drainage valve 6, a first desulfurization circulating pump 7 and a first sampling valve 8, the first switch valve 5 is positioned at the upstream of the first drainage valve 6, the first drainage valve 6 is positioned at the upstream of the first desulfurization circulating pump 7, and the first desulfurization circulating pump 7 is positioned at the upstream of the first sampling valve 8; and a second switch valve 9, a second liquid discharge valve 10, a second desulfurization circulating pump 11 and a second sampling valve 12 are arranged on the second sampling pipe 2, the second switch valve 9 is positioned at the upstream of the second liquid discharge valve 10, the second liquid discharge valve 10 is positioned at the upstream of the second desulfurization circulating pump 11, and the second desulfurization circulating pump 11 is positioned at the upstream of the second sampling valve 12.
The sampling tube is provided with a first PH meter electrode vertical installation tube 20 and a second PH meter electrode vertical installation tube 21, the first PH meter electrode vertical installation tube 20 is inserted with a first PH meter electrode 13, and the second PH meter electrode vertical installation tube 21 is inserted with a second PH meter electrode 14. For PH meter electrode easy dismounting, as preferred, plug piece is all installed to first PH meter electrode perpendicular installation pipe 20 and second PH meter electrode perpendicular installation pipe 21, first PH meter electrode 13 is installed on first PH meter electrode perpendicular installation pipe 20 through the mode of grafting plug piece, second PH meter electrode 14 is installed on second PH meter electrode perpendicular installation pipe 21 through the mode of grafting plug piece. The sampling main pipe 3 is connected with a flushing pipe 15, and a flushing valve 16 is arranged on the flushing pipe 15.
Through setting up two way sampling tubes, first sampling tube 1 and second sampling tube 2 promptly, can prevent that the desulfurization circulating pump on one of them sampling tube from taking place because of the unable circumstances of taking a sample of shutting down, having ensured the security of taking a sample. The position of the joint of the first sampling tube 1 and the desulfurization absorption tower, the position of the joint of the second sampling tube 2 and the desulfurization absorption tower, and the position of the joint of the backflow tube 4 and the desulfurization absorption tower are all lower than the liquid level of the slurry in the desulfurization absorption tower, SO that the slurry flowing through the first PH meter electrode 13 and the second PH meter electrode 14 from the source in the sampling main tube 3 is directly sent to the spray tube nozzle to participate in SO2The flue gas absorbs the reacted slurry, so that the measured values of the first pH meter and the second pH meter are the most real-time and most timely working condition values. During the use, first PH meter and the equal external controller of second PH meter, first PH meter and second PH meter can use alone respectively, perhaps use of mutually supporting, when mutually supporting the use, can proofread the measuring value each other. A first PH meter electrode 13 and a second PH meter electrode 14 are respectively inserted in the first PH meter electrodeOn the perpendicular installation pipe 20 and the perpendicular installation pipe 21 of second PH meter electrode, when overhauing and maintaining, direct plug can, and can not cause the spill of thick liquid.
The backflow pipe 4 is provided with a first overhauling isolation valve 17, the second sampling pipe 2 is provided with a second overhauling isolation valve 18, and the second overhauling isolation valve 18 is positioned at the downstream of the second sampling valve 12. Through setting up first maintenance isolating valve 17 and second maintenance isolating valve 18, the easy access maintenance of one side, on the other hand, the accessible is adjusted the aperture of first maintenance isolating valve 17 and second maintenance isolating valve 18 and is controlled the flow rate of thick liquid in the sample person in charge 3, reduces the wearing and tearing to first PH meter electrode 13 and second PH meter electrode 14, guarantees the life of first PH meter electrode 13 and second PH meter electrode 14.
Be equipped with discharge valve 19 on the sample is responsible for 3, through setting up discharge valve 19, can avoid the sample to be responsible for 3 in have gaseous gathering.
During working, if the first sampling pipe 1 is used for sampling and monitoring, the first switch valve 5 is switched on, the first drainage valve 6 is switched off, the first desulfurization circulating pump 7 is in a working state, the first sampling valve 8 is switched on, the first PH meter electrode 13 and/or the second PH meter electrode 14 are/is used for sampling and monitoring, and the first maintenance isolating valve 17 is switched on; if adopt 2 sampling monitoring of second sampling tube, second ooff valve 9 switches on, and second flowing back valve 10 closes, and second desulfurization circulating pump 11 is in operating condition, and second sampling valve 12 switches on, and second maintenance isolating valve 18 switches on, and first PH meter electrode 13 and/or second PH meter electrode 14 carry out sampling monitoring, and first maintenance isolating valve 17 switches on.
During flushing, if the first sampling pipe 1 is adopted for flushing, the first overhauling isolation valve 17 is closed, the flushing valve 16 is conducted, flushing water is introduced into the end part of the flushing pipe 15, the flushing water flows into the sampling main pipe 3 through the flushing pipe 15, and the first PH meter electrode 13 and the second PH meter electrode 14 are flushed; then the first sampling valve 8 is conducted, the first desulfurization circulating pump 7 is reversely connected and is in a working state, the first liquid discharge valve 6 is conducted, the first switch valve 5 is closed, and the flushed wastewater is discharged from the first liquid discharge valve 6 after passing through the first sampling valve 8 and the first desulfurization circulating pump 7; if the second sampling pipe 2 is adopted for flushing, the first maintenance isolating valve 17 is closed, the flushing valve 16 is conducted, flushing water is introduced into the end part of the flushing pipe 15, the flushing water flows into the sampling main pipe 3 through the flushing pipe 15, and the first PH meter electrode 13 and the second PH meter electrode 141 are flushed; then the second overhauls isolation valve 18 and switches on, and second sampling valve 12 switches on, and second desulfurization circulating pump 11 reverse connection is in operating condition, and second flowing back valve 10 switches on, and second ooff valve 9 closes, and the waste water after washing is through second overhauls isolation valve 18, second sampling valve 12, second desulfurization circulating pump 11 after, discharge from second flowing back valve 10.
To sum up, the utility model discloses in, the position of first sampling tube and desulfurization absorption tower junction, second sampling tube and desulfurization absorption tower junction, the position of back flow and desulfurization absorption tower junction all are less than the liquid level of thick liquid in the desulfurization absorption tower for the thick liquid of the interior source of sample person in charge uninterrupted first PH meter electrode, second PH meter electrode is directly sent to the shower nozzle and participates in SO2The flue gas absorbs the reacted slurry, so that the measured values of the first PH meter and the second PH meter are the most real-time and most timely working condition values. The utility model discloses a set up the flushing pipe, the tip of flushing pipe lets in the sparge water, can wash first PH meter electrode and second PH meter electrode, need not to dismantle, and convenient operation. The utility model discloses an adjust the aperture that first maintenance isolating valve and second overhauld the isolating valve and control the velocity of flow of thick liquid in the sample main pipe, reduce the wearing and tearing to first PH meter electrode and second PH meter electrode, guarantee the life of first PH meter electrode and second PH meter electrode.
Finally, it should be noted that the above embodiments are merely representative examples of the present invention. Obviously, the present invention is not limited to the above-described embodiments, and many modifications are possible. Any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should be considered as belonging to the protection scope of the present invention.
Claims (4)
1. A sampling pipe for measuring and measuring the PH value of slurry in a desulfurization absorption tower is characterized by comprising a first sampling pipe, a second sampling pipe, a sampling main pipe and a backflow pipe, wherein one end of the first sampling pipe is connected with the desulfurization absorption tower, one end of the second sampling pipe is connected with the desulfurization absorption tower, the other end of the first sampling pipe and the other end of the second sampling pipe are mutually converged and then connected with one end of the sampling main pipe, the other end of the sampling main pipe is connected with one end of the backflow pipe, the other end of the backflow pipe is connected with the desulfurization absorption tower, and the positions of the connection part of the first sampling pipe and the desulfurization absorption tower, the connection part of the second sampling pipe and the desulfurization absorption tower and the connection part of the backflow pipe and the desulfurization absorption tower are all lower than the liquid level of the slurry in the desulfurization absorption tower; the device comprises a first sampling pipe, a second sampling pipe, a first PH meter electrode vertical installation pipe, a second PH meter electrode vertical installation pipe, a flushing pipe and a second sampling valve, wherein the first sampling pipe is sequentially provided with the first switch valve, the first drain valve, the first desulfurization circulating pump and the first sampling valve, the second sampling pipe is sequentially provided with the second switch valve, the second drain valve, the second desulfurization circulating pump and the second sampling valve, the sampling main pipe is provided with the first PH meter electrode vertical installation pipe and the second PH meter electrode vertical installation pipe, the first PH meter electrode vertical installation pipe is connected with the first PH meter electrode in an inserting mode, the second PH meter electrode vertical installation pipe is connected with the second PH meter electrode in an inserting mode, the sampling main pipe is connected with the flushing pipe, and the flushing valve is arranged on the flushing pipe.
2. The measuring and sampling pipe for the pH value of the slurry in the desulfurization absorption tower as recited in claim 1, wherein the return pipe is provided with a first maintenance isolating valve.
3. The measuring and sampling pipe for the pH value of the slurry in the desulfurization absorption tower as recited in claim 1, wherein the second sampling pipe is provided with a second maintenance isolating valve, and the second maintenance isolating valve is positioned at the downstream of the second sampling valve.
4. The measuring and sampling pipe for the pH value of the slurry in the desulfurization absorption tower as recited in claim 1, wherein the sampling main pipe is provided with an exhaust valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023252258.0U CN214844153U (en) | 2020-12-29 | 2020-12-29 | Sampling pipe is got to desulfurization absorption tower thick liquid PH meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023252258.0U CN214844153U (en) | 2020-12-29 | 2020-12-29 | Sampling pipe is got to desulfurization absorption tower thick liquid PH meter |
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| Publication Number | Publication Date |
|---|---|
| CN214844153U true CN214844153U (en) | 2021-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023252258.0U Active CN214844153U (en) | 2020-12-29 | 2020-12-29 | Sampling pipe is got to desulfurization absorption tower thick liquid PH meter |
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| CN (1) | CN214844153U (en) |
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