CN203376230U - Measuring device for pH (Potential of Hydrogen) value and density value of slurry - Google Patents
Measuring device for pH (Potential of Hydrogen) value and density value of slurry Download PDFInfo
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- CN203376230U CN203376230U CN201320378805.0U CN201320378805U CN203376230U CN 203376230 U CN203376230 U CN 203376230U CN 201320378805 U CN201320378805 U CN 201320378805U CN 203376230 U CN203376230 U CN 203376230U
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Abstract
The utility model discloses a measuring device for a pH (Potential of Hydrogen) value and a density value of slurry. The measuring device comprises a supporting shell, a horizontal distribution pipe, a vertical distribution pipe, a pipeline pump, a pH meter and a density meter, wherein the horizontal distribution pipe is located on the lower part in the supporting shell; a slurry inlet is formed in one end of the horizontal distribution pipe; the bottom of the vertical distribution pipe is communicated with the other end of the horizontal distribution pipe; a slurry outlet is formed in the top of the vertical distribution pipe; the pipeline pump is arranged on the horizontal distribution pipe; the pH meter and the density meter are arranged on the vertical distribution pipe. According to the measuring device, the pH value and the density value of the slurry are measured simultaneously; the device can be operated independently, has independent functions and simple distribution pipes, and is convenient to overhaul and maintain.
Description
Technical field
The utility model relates to slurries parameter measurement equipment field, is specifically related to a kind of slurry pH value and density value measurement mechanism.
Background technology
The measurement of liquid pH value and density value is widely used in fields such as chemical industry, environmental protection, electric power.In the Flue Gas Desulfurization Engineering in Power Plant project, the pH value of slurries and density value are the key process parameters of system, are the important indicators of weighing chemical response situation, assessment apparatus overall performance in absorption tower, and the stable operation of system is played an important role.But the complicacy due to gypsum slurries adhesiveness, corrosivity and wearability and connection measurement mechanism pipeline, easily cause fouling, obstruction, there are the problems such as poor reliability, maintenance workload is large, the Instrument use life-span is short in current most monitoring devices.
The pH value sensor has three kinds of mounting meanss: immersion, the formula of flowing through, plug-in type.Immersion is that the pH value installation of sensors is directly contacted with liquid in container, is easy to safeguard, but in most cases can not well realizes.The formula of flowing through generally is arranged on to be measured in arm, but owing to there is no independent suitable slurries power source, pipe arrangement pipeline complexity, in an easy generation blockage, sensor wearing and tearing, arm, the wayward PH that causes of slurry flow rate and pressure counts the problems such as inefficacy.Plug-in type directly is inserted in liquid by encapsulant and separation valve door, and same easily the generation stopped up and the sensor wear problem.
For desulphurization system, current serosity density measurement method mainly contains three kinds: gamma-rays radiation absorption mensuration, Coriolis discharge method, differential pressure method.The first method maintenance cost is very high.Second method is domestic desulphurization system serosity density measurement main method, but actual field is because flow velocity is high, wear and tear very large, progressively wearing and tearing in use procedure, there will be drift the zero point of measuring, the phenomenon of inaccurate and standby redundancy frequent breakage, the spare unit that need to constantly carry out verification and more renew often appear measuring.The differential pressure method cost is low, but actual the use occurs that gypsum deposition, turbulent flow are on problems such as measurement data impacts often.
The Chinese invention patent application that publication number is 102500221A discloses a kind of desulfurated plaster serum density and pH value measurement mechanism, the desulfuration absorbing tower bottom arranges outlet oblique connecting pipe upwards, absorption tower maintenance isolating door, the first absorption tower PH meter are set on oblique connecting pipe, and with the vertical connecting pipe of its pipeline connection, set gradually from the bottom to top service valve isolating door after service valve isolating door before densitometer, gypsum slurry densimeter, densitometer, unrestrained pipe and second absorption tower PH meter on vertical connecting pipe, described PH meter and densitometer respectively with the controller control linkage.This unit piping complexity, troublesome poeration.
The utility model content
The utility model provides a kind of slurry pH value and density value measurement mechanism, measures pH value and the density value of slurries simultaneously, device continuously-running, functional independence, succinct, the convenient maintenance maintenance of pipe arrangement.
A kind of slurry pH value and density value measurement mechanism, comprising: support housing; Be positioned at the horizontal pipe arrangement of support housing bottom, an end of this horizontal pipe arrangement is slurry inlet; The vertical pipe arrangement that bottom is communicated with the horizontal pipe arrangement other end, the top of this vertical pipe arrangement is the slurries outlets; Be arranged on the in-line pump on horizontal pipe arrangement; And be arranged on pH meter and the densitometer on vertical pipe arrangement.
As preferably, also be provided with pH meter display screen and densitometer display screen on described support housing.For showing pH meter and densitometric measured value, be convenient to observe.
As preferably, also be provided with the in-line pump shift knob on described support housing.The in-line pump shift knob is arranged on support housing, is convenient to control the operation of in-line pump.
As preferably, also be provided with access door on described support housing.Conveniently device is overhauled to maintenance.
As preferably, between described vertical pipe arrangement and horizontal pipe arrangement, by curve bend, be connected.
As preferably, the nominal diameter of described horizontal pipe arrangement is DN40～DN50, and the length of described horizontal pipe arrangement is 0.8～1.2m.For the flow velocity in the level of control pipe arrangement is greater than 1.5m/s, the big or small general control of horizontal pipe arrangement is DN40～DN50 at nominal diameter, is preferably DN50, length is 0.8～1.2m, is preferably 1m.
As preferably, the nominal diameter of described vertical pipe arrangement is DN100～DN125, and the height of described vertical pipe arrangement is 0.8～1.2m.For the flow velocity of controlling in vertical pipe arrangement is about 0.5m/s, vertically the big or small general control of pipe arrangement is DN100～DN125 at nominal diameter, is preferably DN100, is highly 0.8～1.2m, is preferably 1m.
As preferably, described pH meter is positioned at densitometric below, and described pH meter installation place be 350mm～450mm with the vertical distance of pipe arrangement bottom, described densitometer installation place and pH meter installation place apart from being 300mm～400mm.
As preferably, the probe of described pH meter tilts to insert in vertical pipe arrangement, with the angle of surface level be 30～45 °.
As preferably, described densitometer tilts to be arranged on described vertical pipe arrangement, with the angle of surface level be 30～45 °.
Described pH meter adopts the formula pH value sensor of flowing through, and described densitometer adopts the tuning-fork type densitometer.
The utility model device is controlled and adjust flux through in-line pump, constant with flow velocity of being full of that keeps liquid in pipe arrangement, piping method guarantees that the flow velocity in horizontal pipe arrangement is greater than non-silting velocity (being greater than 1.5m/s), flow velocity in vertical pipe arrangement meets pH value and the density value accurate stable is measured needed best require (about 0.5m/s), the installation of can be used for flowing through formula pH value sensor and tuning-fork type densitometer (belonging to the Coriolis discharge method).
Said pipe arrangement is connected the outside slurry pipe line of pick-up unit by the outlet of slurry inlet and slurries and realizes circulating of slurries, by connecting the outside flushing pipe of pick-up unit, realizes that pipeline, PH count, densitometric flushing.
By in-line pump shift knob opening conduits pump, showing screen display numerical value, when measurement mechanism is stopped using, by the in-line pump shift knob, close in-line pump when measurement mechanism uses, then squeeze into fresh water (FW) by outside pipe arrangement and clean measurement mechanism.Can be derived and be obtained by engineering fluid mechanics knowledge, the liquid density measurement value that this measurement mechanism obtains and its actual value only differ a coefficient with the matched tube structure Size dependence.This measurement mechanism continuously-running, functional independence, succinct, the convenient maintenance maintenance of pipe arrangement, PH meter and densitometer are worked under optimum condition separately, guaranteed to detect numerical value accurately and stable, be specially adapted to plasm PH value in power plant smoke desulfurization by wet method and the measurement of density.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 be figure along A-A to structural representation.
Shown in figure, Reference numeral is as follows:
1-support housing 2-densitometer display screen 3-pH counts display screen
4-densitometer 5-pH meter 6-in-line pump shift knob
The horizontal pipe arrangement of the vertical pipe arrangement 8-of 7-in-line pump 9-
The outlet of 10-slurry inlet 11-slurries.
Embodiment
As depicted in figs. 1 and 2, a kind of slurry pH value and density value measurement mechanism, comprise support housing 1, horizontal pipe arrangement 9, vertical pipe arrangement 7, in-line pump 8, pH meter 5 and densitometer 4.
Horizontal pipe arrangement 9 is arranged on the bottom in support housing 1, for stable detection, in this horizontal pipe arrangement, the flow velocity of slurries is greater than 1.5m/s, this flow velocity is controlled by size and the in-line pump of level of control pipe arrangement 9, the nominal diameter of horizontal pipe arrangement 9 is DN40～DN50, and length is 0.8～1.2m, in present embodiment, length is 1m, and nominal diameter is DN50.
One end of this horizontal pipe arrangement 9 extends outside support housing 1, and its port is slurry inlet 10, and the other end of this horizontal pipe arrangement 9 is positioned at support housing 1 inside, and the connecting tube pump reaches by curve bend and corresponding flange and is connected with the bottom of vertical pipe arrangement 7.
In-line pump 8 is arranged between the port of the port of horizontal pipe arrangement 9 and curve bend, and in-line pump shift knob 6 is arranged on support housing 1.
Vertically the bottom of pipe arrangement 7 is connected with horizontal pipe arrangement 9, extend outside support housing 1 on top, extending support housing 1 outer port is slurries outlet 11, is stable detection, and vertically the slurry flow rate in pipe arrangement 7 is controlled at 0.5m/s, for making flow velocity reach requirement, vertically the height of pipe arrangement 7 is 0.8～1.2m, and nominal diameter is DN100～DN125, in present embodiment, vertically the height of pipe arrangement 7 is 1.0m, and nominal diameter is DN100.
PH meter 5 and densitometer 4 are arranged on vertical pipe arrangement 7, pH meter 5 is positioned at the below of densitometer 4, the installation place of pH meter 5 is 350～450mm with the distance of vertical pipe arrangement 7 bottoms, spacing between densitometer 4 and pH meter 5 is 300～400mm, in present embodiment, the installation place of pH meter 5 is 400mm with the distance of vertical pipe arrangement 7 bottoms, and the spacing between densitometer 4 and pH meter 5 is 350mm.
PH meter 5 and densitometer 4 all tilt to be arranged on vertical pipe arrangement 7, and the probe of pH meter 5 is downward-sloping to be stretched in vertical pipe arrangement 7, and angle of inclination is 30～45 ° for surface level, pressing from both sides angle, in present embodiment, is 30 °; In present embodiment, densitometer 4 adopts the tuning-fork type densitometer, and the angle of the densitometric center line of this tuning-fork type and surface level is 30～45 °, in present embodiment, is 30 °.
PH meter display screen 3 and densitometer display screen 2 are installed on support housing 1, on support housing 1, also arrange by access hole.
When being used, passes through the utility model in-line pump shift knob 6 opening conduits pumps 8, slurries to be determined are sent into by the slurries entrance, flow velocity in in-line pump level of control pipe arrangement is greater than 1.5m/s, vertically the flow velocity in pipe arrangement is about 0.5m/s, slurries pass through pH meter and densitometer successively, show screen display numerical value at two, when measurement mechanism is stopped using, by in-line pump shift knob 6, close in-line pump 8, then squeeze into fresh water (FW) by outside pipe arrangement and clean measurement mechanism.
The foregoing is only better implementation example of the present utility model, be not limited to the utility model, all within the utility model spirit and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. a slurry pH value and density value measurement mechanism, is characterized in that, comprising:
Support housing; Be positioned at the horizontal pipe arrangement of support housing bottom, an end of this horizontal pipe arrangement is slurry inlet; The vertical pipe arrangement that bottom is communicated with the horizontal pipe arrangement other end, the top of this vertical pipe arrangement is the slurries outlets; Be arranged on the in-line pump on horizontal pipe arrangement; And be arranged on pH meter and the densitometer on vertical pipe arrangement.
2. slurry pH value according to claim 1 and density value measurement mechanism, is characterized in that, also is provided with pH meter display screen and densitometer display screen on described support housing.
3. slurry pH value according to claim 1 and density value measurement mechanism, is characterized in that, also is provided with the in-line pump shift knob on described support housing.
4. slurry pH value according to claim 1 and density value measurement mechanism, is characterized in that, also is provided with access door on described support housing.
5. slurry pH value according to claim 1 and density value measurement mechanism, is characterized in that, between described vertical pipe arrangement and horizontal pipe arrangement, by curve bend, is connected.
6. slurry pH value according to claim 1 and density value measurement mechanism, is characterized in that, the nominal diameter of described horizontal pipe arrangement is DN40～DN50, and the length of described horizontal pipe arrangement is 0.8～1.2m.
7. slurry pH value according to claim 1 and density value measurement mechanism, is characterized in that, the nominal diameter of described vertical pipe arrangement is DN100～DN125, and the height of described vertical pipe arrangement is 0.8～1.2m.
8. slurry pH value according to claim 1 and density value measurement mechanism, it is characterized in that, described pH meter is positioned at densitometric below, described pH meter installation place is 350mm～450mm with the distance of vertical pipe arrangement bottom, and the distance of described densitometer installation place and pH meter installation place is 300mm～400mm.
9. slurry pH value according to claim 1 and density value measurement mechanism, is characterized in that, the probe of described pH meter tilts to insert in vertical pipe arrangement, with the angle of surface level be 30～45 °.
10. slurry pH value according to claim 1 and density value measurement mechanism, is characterized in that, described densitometer tilts to be arranged on described vertical pipe arrangement, with the angle of surface level be 30～45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320378805.0U CN203376230U (en) | 2013-06-27 | 2013-06-27 | Measuring device for pH (Potential of Hydrogen) value and density value of slurry |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320378805.0U CN203376230U (en) | 2013-06-27 | 2013-06-27 | Measuring device for pH (Potential of Hydrogen) value and density value of slurry |
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| Publication Number | Publication Date |
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| CN203376230U true CN203376230U (en) | 2014-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320378805.0U Expired - Lifetime CN203376230U (en) | 2013-06-27 | 2013-06-27 | Measuring device for pH (Potential of Hydrogen) value and density value of slurry |
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| CN (1) | CN203376230U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106442216A (en) * | 2016-08-30 | 2017-02-22 | 浙江天蓝环保技术股份有限公司 | Online tubular density measurement device and liquid density measurement method |
| CN108760572A (en) * | 2018-08-19 | 2018-11-06 | 戴红梅 | The measuring device and its method of boric acid concentration in a kind of boron recovery system |
| CN111965068A (en) * | 2020-07-03 | 2020-11-20 | 华电电力科学研究院有限公司 | Simple system and method for improving online measurement accuracy of density of desulfurized gypsum slurry |
| CN115684276A (en) * | 2022-12-28 | 2023-02-03 | 北京华科仪科技股份有限公司 | Desulfurization system pH value prediction method and system based on integrated fusion model |
-
2013
- 2013-06-27 CN CN201320378805.0U patent/CN203376230U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106442216A (en) * | 2016-08-30 | 2017-02-22 | 浙江天蓝环保技术股份有限公司 | Online tubular density measurement device and liquid density measurement method |
| CN108760572A (en) * | 2018-08-19 | 2018-11-06 | 戴红梅 | The measuring device and its method of boric acid concentration in a kind of boron recovery system |
| CN111965068A (en) * | 2020-07-03 | 2020-11-20 | 华电电力科学研究院有限公司 | Simple system and method for improving online measurement accuracy of density of desulfurized gypsum slurry |
| CN115684276A (en) * | 2022-12-28 | 2023-02-03 | 北京华科仪科技股份有限公司 | Desulfurization system pH value prediction method and system based on integrated fusion model |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140101 |