CN213986385U - Slurry pH value measuring device of desulfurization system absorption tower - Google Patents
Slurry pH value measuring device of desulfurization system absorption tower Download PDFInfo
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- CN213986385U CN213986385U CN202022902584.5U CN202022902584U CN213986385U CN 213986385 U CN213986385 U CN 213986385U CN 202022902584 U CN202022902584 U CN 202022902584U CN 213986385 U CN213986385 U CN 213986385U
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Abstract
The utility model provides a slurry pH value measuring device of an absorption tower of a desulfurization system, which comprises a sampling pipeline, wherein a first pH meter is arranged on the sampling pipeline, and one end of the sampling pipeline is connected with the side wall of the absorption tower; the other end of the main reflux pipe is communicated with the main reflux pipe, and the main reflux pipe is arranged on the side wall of the absorption tower. The utility model discloses a thick liquid pH value measuring device improves the online detection rate of PH meter through arranging transformation to thermal power factory desulfurization system absorption tower thick liquid pH value measuring device, realizes the technical target of online continuous operation control of PH meter and thick liquid zero release to promote desulfurization efficiency.
Description
Technical Field
The utility model relates to a desulfurization system's thick liquid pH value measures technical field, specifically is a thick liquid pH value measuring device of desulfurization system absorption tower.
Background
At present, the arrangement modes of the measuring device of the pH meter of the absorption tower of the limestone wet flue gas desulfurization system mainly comprise three types: (1) the pipeline between the outlet of the gypsum discharge pump and the gypsum cyclone is arranged in the gypsum dewatering machine room; (2) an outlet pipeline of the gypsum discharge pump returns to the pit of the absorption tower through the pH meter; (3) the outlet pipeline of the gypsum discharge pump returns to the absorption tower through the pH meter, and the three arrangement processes have respective advantages and disadvantages.
(1) The gypsum discharge pump is arranged in the gypsum dewatering machine room on the pipeline between the outlet of the gypsum discharge pump and the gypsum cyclone, the arrangement mode is far away, and the absorption tower gypsum discharge pump is required to continuously supply slurry during operation, so that the gypsum discharge pump is large in power consumption and abrasion. Meanwhile, the start and stop of the gypsum discharge pump in terms of items can not be realized, after dehydration and stoppage, the gypsum discharge pump still needs to be operated to provide slurry for a pH meter, the gypsum discharge pump can not be stopped for maintenance for a long time, and the monitoring of the pH value is influenced when defect treatment occurs.
(2) Gypsum discharge pump outlet pipe way gets back to the absorption tower pit through the pH meter and arranges, the structure arranges simply for (1), the pipeline is shorter, but the same unable branch that appears opens and stops, after the dehydration is stopped transport, the gypsum discharge pump still need the operation to provide the thick liquid for the pH meter, the gypsum discharge pump can't obtain the outage for a long time and overhaul, the problem of influence is caused to the control of pH value when taking place the defect processing, and greatly increased opening of absorption tower pit pump stops the frequency, the wearing and tearing of power consumption and accessory.
(3) The outlet pipeline of the gypsum discharge pump returns to the absorption tower through the pH meter and is arranged, and compared with the structure (2), the structure greatly reduces the starting and stopping frequency of the pit pump, the power consumption and the abrasion of accessories. But the problem that the startup and shutdown of the gypsum discharge pump in terms of items can not be realized, the gypsum discharge pump still needs to be operated to provide slurry for a pH meter after dehydration and shutdown, the gypsum discharge pump can not be shut down for maintenance for a long time, and the monitoring of the pH value is influenced when defect treatment occurs.
In view of the above, the present invention is particularly proposed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a thick liquid pH value measuring device of desulfurization system absorption tower to solve the prior art problem among the above-mentioned background art.
In order to solve the technical problem, the invention provides a slurry pH value measuring device of an absorption tower of a desulfurization system, which comprises a sampling pipeline, wherein a first pH meter is arranged on the sampling pipeline, and one end of the sampling pipeline is connected with the side wall of the absorption tower; the other end of the main reflux pipe is communicated with the main reflux pipe, and the main reflux pipe is arranged on the side wall of the absorption tower.
Furthermore, the device also comprises a bypass standby pipeline, wherein one end of the bypass standby pipeline is connected with the side wall of the absorption tower; the other end is communicated with the sampling pipeline.
Further, the device also comprises a second pH meter, and the second pH meter and the first pH meter are arranged in parallel.
Furthermore, a reaction tank is arranged at the bottom of the absorption tower, and the sampling pipeline and the bypass standby pipeline are communicated with the reaction tank.
Furthermore, pressure gauges are arranged on the sampling pipeline and the bypass standby pipeline.
Furthermore, the front end of the pressure gauge is provided with a slurry circulating pump.
Furthermore, the sampling pipeline and the bypass standby pipeline are both provided with electromagnetic flow meters.
Furthermore, discharge pipelines are arranged between the slurry circulating pump and the electromagnetic flowmeter.
Furthermore, all be provided with manual diaphragm control valve on sample pipeline and the spare pipeline of bypass, manual diaphragm control valve all sets up the front end of first pH meter.
Furthermore, a manual diaphragm control valve is arranged at the rear end of the first pH meter.
Compared with the prior art, the invention has the beneficial effects that:
the utility model provides a thick liquid pH value measuring device of desulfurization system absorption tower is through directly communicating with the reaction tank with the sample pipeline, rethread pH meter to absorption tower backward flow female pipe department, the long period continuous operation of gypsum extraction pump has been removed, absorption tower pit pump frequently opens and stops, the fault rate is high and the complicated scheduling problem of system, the gypsum extraction pump has been reduced, the wearing and tearing of pit pump and export pipeline and accessory corrode, the system is simple has been reached, the convenient effect of maintenance, realize the technical goal of online continuous operation control of pH meter and thick liquid zero release.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is the utility model provides a slurry pH value measuring device of desulfurization system absorption tower.
Description of reference numerals:
1-a sampling pipe; 2-an absorption column;
3-bypassing the standby pipeline; 11-a first pH meter;
12-a second pH meter; 13-manual diaphragm control valve;
14-pressure gauge; 15-slurry circulation pump;
16-an electromagnetic flow meter; 17-a discharge conduit;
21-a reflux main pipe; 22-reaction tank.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise. Furthermore, the terms "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1, the device for measuring the pH value of slurry in an absorption tower of a desulfurization system according to the present invention comprises a sampling pipe 1, wherein a first pH meter 11 is disposed on the sampling pipe 1, and one end of the sampling pipe 1 is connected to a side wall of the absorption tower 2; the other end is communicated with a reflux main pipe 21, and the reflux main pipe 21 is arranged on the side wall of the absorption tower 2. Through communicating the reaction tank 22 in 1 directness of sample pipeline and the absorption tower 2, can directly take a sample from reaction tank 22, rethread first pH meter 11 to the female pipe 21 department of backward flow, set up the technological defect of three kinds of current arrangements in the reasonable background art of having avoided like this, guarantee the online monitoring rate of pH value to desulfurization efficiency has been promoted.
In this embodiment, the slurry pH measuring device further includes a bypass standby pipe 3, and one end of the bypass standby pipe 3 is connected to the side wall of the absorption tower 2; the other end is communicated with a sampling pipeline 1. The tower bottom of the absorption tower 2 is provided with a reaction tank 22, a bypass spare pipeline 3 is communicated with the reaction tank 22, when the sampling pipeline 1 is damaged, the bypass spare pipeline 3 is started, the bypass spare pipeline 3 directly samples from the reaction tank 22, and then the slurry enters the first pH meter 11 to carry out pH measurement on the slurry after the front end of the first pH meter 11 is converged with the sampling pipeline 1. In order to prevent the first pH meter 11 from being damaged and further influencing the field measurement, a second pH meter 12 is further arranged, and the second pH meter 12 and the first pH meter 11 are arranged in parallel.
In addition, manual diaphragm control valves 13 are provided in both the sampling line 1 and the bypass backup line 3, and are provided at the front end and the rear end of the first pH meter 11. The front end of the first pH meter is arranged for opening and closing the sampling pipeline 1 and the bypass standby pipeline 3, so that the two pipelines can be conveniently switched for use. The arrangement at the rear end of the first pH meter is to prevent the slurry backflow of the absorption tower 2 during the maintenance of the pH meter.
In this embodiment, all be provided with manometer 14 on sample pipeline 1 and the bypass spare pipeline 3, manometer 14's front end all is provided with slurry circulating pump 15, and slurry circulating pump 15 can make the slurry in absorption tower 2 constantly circulate in sample pipeline to guarantee the continuous measurement of online pH value. Still be provided with electromagnetic flowmeter 16 on sample pipeline 1 and the spare pipeline 3 of bypass in order to be used for monitoring the thick liquid flow, still be provided with discharge pipe 17 between electromagnetic flowmeter 16 and the thick liquid circulating pump 15, when thick liquid circulating pump 15 stop work, open this discharge pipe 17, discharge the thick liquid totally, prevent that the thick liquid from solidifying the jam.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. The slurry pH value measuring device of the absorption tower of the desulfurization system is characterized by comprising a sampling pipeline, wherein a first pH meter is arranged on the sampling pipeline, and one end of the sampling pipeline is connected with the side wall of the absorption tower; the other end of the main reflux pipe is communicated with the main reflux pipe, and the main reflux pipe is arranged on the side wall of the absorption tower.
2. The slurry pH measuring device according to claim 1, further comprising a bypass backup pipe, one end of which is connected to a side wall of the absorption tower; the other end is communicated with the sampling pipeline.
3. The slurry pH measuring device according to claim 1, further comprising a second pH meter, wherein the second pH meter and the first pH meter are arranged in parallel.
4. The apparatus for measuring pH value of slurry according to claim 2, wherein a reaction tank is provided at the bottom of the absorption tower, and the sampling pipe and the bypass standby pipe are both communicated with the reaction tank.
5. The slurry pH measuring device according to claim 2, wherein pressure gauges are provided on both the sampling pipe and the bypass backup pipe.
6. The slurry pH value measuring device according to claim 5, wherein a slurry circulating pump is provided at each front end of the pressure gauge.
7. The slurry pH measuring device according to claim 6, wherein electromagnetic flow meters are provided on both the sampling pipe and the bypass backup pipe.
8. The slurry pH measuring device according to claim 7, wherein a discharge conduit is provided between the slurry circulation pump and the electromagnetic flow meter.
9. The slurry pH measuring device according to claim 2, wherein a manual diaphragm control valve is provided on each of the sampling pipe and the bypass backup pipe, and the manual diaphragm control valves are provided at a front end of the first pH meter.
10. The slurry pH measuring device according to claim 1, wherein a manual diaphragm control valve is further provided at a rear end of the first pH meter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022902584.5U CN213986385U (en) | 2020-12-07 | 2020-12-07 | Slurry pH value measuring device of desulfurization system absorption tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022902584.5U CN213986385U (en) | 2020-12-07 | 2020-12-07 | Slurry pH value measuring device of desulfurization system absorption tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213986385U true CN213986385U (en) | 2021-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202022902584.5U Active CN213986385U (en) | 2020-12-07 | 2020-12-07 | Slurry pH value measuring device of desulfurization system absorption tower |
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| CN (1) | CN213986385U (en) |
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