CN107677337A - Desulphurization system absorbing tower liquid-level measurement apparatus and measuring method - Google Patents
Desulphurization system absorbing tower liquid-level measurement apparatus and measuring method Download PDFInfo
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- CN107677337A CN107677337A CN201711067142.XA CN201711067142A CN107677337A CN 107677337 A CN107677337 A CN 107677337A CN 201711067142 A CN201711067142 A CN 201711067142A CN 107677337 A CN107677337 A CN 107677337A
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- absorption tower
- desulphurization system
- measurement apparatus
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- pressure
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/14—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measurement of pressure
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The present invention provides desulphurization system absorbing tower liquid-level measurement apparatus and measuring method, wherein measurement apparatus includes the pressure transmitter of absorption tower, number as many as 2, densitometer, the absorption tower side sets two slurry circulating pumps, the densitometer is arranged on slurry circulating pump exit position, for measuring the density for the slurries drawn from slurry circulating pump, the pressure transmitter is contour to be arranged on around absorption tower, and measuring method step is：S1：Absorption tower slurries are drawn from two serum recycle pump discharges, serum density is measured using mass density measurement；S2：Pressure transmitter measurement, which goes out, absorbs tower pressure interior force, calculates pressure mean values P；S3：Calculated using the density value measured and the pressure mean values calculated, draw absorption tower pulp level, measured value of the present invention is precisely stablized, beneficial to desulphurization system level monitoring and operation.
Description
Technical field
The invention belongs to thermal power plant's Limestone-gypsum Wet Flue Gas Desulfurization Process technical field, and in particular to desulphurization system absorption tower liquid
Level measuring arrangement and measuring method.
Background technology
Ensure that desulfuration absorbing tower liquid level is normally most important to desulphurization system safe and stable operation, suitable liquid level is on the one hand
So that gypsum can have enough holdup times in absorption tower；On the other hand oxidation air is caused to have suitable diffusion in slurries
Space（It is related to density liquid level）And the holdup time so that there is appropriate oxidation air amount inside the slurries slurries of absorption tower.With
Upper two principal elements ensure that Ca in slurries2SO3.2H2O oxidation and the crystallization of gypsum.Current most of absorption towers all use
Differential pressure type liquid level meter and transmitter, because slurries operating mode in absorption tower in running（Density）Change, frequently result in
Absorbing tower liquid-level is shown on DCS is forbidden, and true liquid level has a certain distance, has a strong impact on operations staff to the accurate of liquid level
Monitoring, influences the operation of desulphurization system.
The content of the invention
A kind of desulphurization system absorbing tower liquid-level measurement apparatus and measuring method are provided to solve the above technical problem present invention,
Measurement result is accurate.
The technical scheme is that：Desulphurization system absorbing tower liquid-level measurement apparatus, including absorption tower, number are as many as 2
Individual pressure transmitter, densitometer, the absorption tower side set two slurry circulating pumps, and the densitometer is arranged on slurries and followed
Ring pump discharge opening position, for measuring the high setting such as the density for the slurries drawn from slurry circulating pump, the pressure transmitter
Around absorption tower.
Scheme further, sets flushing pipeline, punching is set on flushing pipeline between the slurry circulating pump and densitometer
Water valve, regular switch valve rinse measurement densitometer loop.
Further, the number of the pressure transmitter is 3 to scheme.
Further, the pressure transmitter is set in qually spaced in sustained height around absorption tower to scheme.
Scheme further, sets blow-off pipe on the absorption tower, the blow-off pipe water inlet also exports phase with densitometer
Even.
The measuring method of desulphurization system absorbing tower liquid-level measurement apparatus comprises the following steps：
S1：Absorption tower slurries are drawn from two serum recycle pump discharges, serum density is measured using mass density measurement；
S2：Pressure transmitter measurement goes out to absorb tower pressure interior force P1, P2, P3, calculate pressure mean values P, P=；
S3：Calculated using the density value measured and the pressure mean values calculated, draw absorption tower pulp level, calculated
Formula is：
H=
H：Slurry pool of absorption tower height；
P：Pressure transmitter measurement average value value；
ρ：Mass density measurement measures slurry density value.
The beneficial effects of the invention are as follows：Multiple pressure transmitters can realize mutually it is standby, can also monitor measurement number mutually
According to accuracy, the serum density drawn using densimeter measurement from slurry circulating pump, avoid slurries operating mode to level gauging
As a result influence, periodic cleaning rinse measuring loop, make measured value accurate stable, beneficial to desulphurization system level monitoring and operation.
Brief description of the drawings
Fig. 1 is schematic structural view of the invention.
Wherein：1st, absorption tower, 2, pressure transmitter, 3, densitometer, 4, blow-off pipe, 5, slurry circulating pump, 6, flashing valve.
Embodiment
Clearly complete description is done to the present invention below in conjunction with the accompanying drawings, so that those skilled in the art need not make
Under conditions of creative work, it can fully implement the present invention.
Embodiment：As shown in figure 1, desulphurization system absorbing tower liquid-level measurement apparatus, including absorption tower 1, number are not
Under pressure transmitter 2, densitometer 3 in 2, the side of absorption tower 1 sets two slurry circulating pumps 5, and the densitometer 3 is set
Put in the exit position of slurry circulating pump 5, for measuring the density for the slurries drawn from slurry circulating pump 5, the pressure becomes
Send device 2 is contour to be arranged on around absorption tower 1.
Preferably, flushing pipeline is set between the slurry circulating pump 5 and densitometer 3, flashing valve is set on flushing pipeline
6, regular switch valve rinses measurement densitometer loop.
Preferably, the number of the pressure transmitter 5 is 3.
Preferably, the pressure transmitter 5 is set in qually spaced in the surrounding sustained height of absorption tower 1.
Preferably, blow-off pipe 6 is set on the absorption tower 1, and the water inlet of blow-off pipe 6 is also connected with the outlet of densitometer 3.
The measuring method of desulphurization system absorbing tower liquid-level measurement apparatus comprises the following steps：
S1：Absorption tower slurries are drawn from two serum recycle pump discharges, serum density is measured using mass density measurement；
S2：Pressure transmitter measurement goes out to absorb tower pressure interior force P1, P2, P3, calculate pressure mean values P, P=；
S3：Calculated using the density value measured and the pressure mean values calculated, draw absorption tower pulp level, calculated
Formula is：
H=
H：Slurry pool of absorption tower height；
P：Pressure transmitter measurement average value value；
ρ：Mass density measurement measures slurry density value.
Presently preferred embodiments of the present invention is described above, it should be pointed out that the invention is not limited in above-mentioned
Particular implementation, wherein the equipment and structure be not described in detail to the greatest extent are construed as giving reality with the common mode in this area
Apply；Any those skilled in the art, without departing from the scope of the technical proposal of the invention, the technology according to the present invention
Essence still falls within technical solution of the present invention protection to any simple modifications, equivalents, and modifications made for any of the above embodiments
In the range of.
Claims (6)
1. desulphurization system absorbing tower liquid-level measurement apparatus, it is characterised in that become including the pressure of absorption tower, number as many as 2
Device, densitometer are sent, the absorption tower side sets two slurry circulating pumps, and the densitometer is arranged on serum recycle pump discharge position
Place is put, for measuring the density for the slurries drawn from slurry circulating pump, the pressure transmitter is contour to be arranged on absorption tower week
Enclose.
2. desulphurization system absorbing tower liquid-level measurement apparatus according to claim 1, it is characterised in that the slurry circulating pump
Flushing pipeline is set between densitometer, flashing valve is set on flushing pipeline, regular switch valve rinses measurement densitometer loop.
3. desulphurization system absorbing tower liquid-level measurement apparatus according to claim 2, it is characterised in that the pressure transmitter
Number be 3.
4. desulphurization system absorbing tower liquid-level measurement apparatus according to claim 3, it is characterised in that the pressure transmitter
It is set in qually spaced in sustained height around absorption tower.
5. desulphurization system absorbing tower liquid-level measurement apparatus according to claim 4, it is characterised in that set on the absorption tower
Blow-off pipe is put, the blow-off pipe water inlet is also connected with densitometer outlet.
6. a kind of method that desulphurization system absorbing tower liquid-level measurement apparatus using described in claim 5 measures liquid level of slurry, its
It is characterised by, comprises the following steps：
S1：Absorption tower slurries are drawn from two serum recycle pump discharges, serum density is measured using mass density measurement；
S2：Pressure transmitter measurement goes out to absorb tower pressure interior force P1, P2, P3, calculate pressure mean values P, P=；
S3：Calculated using the density value measured and the pressure mean values calculated, draw absorption tower pulp level, calculated
Formula is：
H=
H：Slurry pool of absorption tower height；
P：Pressure transmitter measurement average value value；
ρ：Mass density measurement measures slurry density value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711067142.XA CN107677337A (en) | 2017-11-03 | 2017-11-03 | Desulphurization system absorbing tower liquid-level measurement apparatus and measuring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711067142.XA CN107677337A (en) | 2017-11-03 | 2017-11-03 | Desulphurization system absorbing tower liquid-level measurement apparatus and measuring method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107677337A true CN107677337A (en) | 2018-02-09 |
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ID=61145267
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711067142.XA Pending CN107677337A (en) | 2017-11-03 | 2017-11-03 | Desulphurization system absorbing tower liquid-level measurement apparatus and measuring method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108362610A (en) * | 2018-03-25 | 2018-08-03 | 华电电力科学研究院有限公司 | A kind of density that can be self-cleaning and pH value accurate measuring systems and 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 |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100041163A (en) * | 2008-10-13 | 2010-04-22 | 한국전력공사 | Method and apparatus for improving the removal rate of sulfur oxides at gas desulfurization process |
| CN202562559U (en) * | 2011-12-31 | 2012-11-28 | 浙江省电力试验研究院 | A liquid level measurement device for absorption tower |
| CN103868822A (en) * | 2013-07-29 | 2014-06-18 | 北京朗新明环保科技有限公司 | Density determination device for slurry in wet desulfurization absorption tower |
| CN204154352U (en) * | 2013-12-10 | 2015-02-11 | 中国神华能源股份有限公司 | The liquid level emasuring device on absorption tower |
| CN204330519U (en) * | 2014-12-01 | 2015-05-13 | 福建鑫泽环保设备工程有限公司 | The device of uninterrupted measurement slurry density of desulfurizing absorption column and pH value |
| CN206168214U (en) * | 2016-10-28 | 2017-05-17 | 大唐贵州发耳发电有限公司 | Close measuring device in absorption tower |
| CN206300811U (en) * | 2016-12-07 | 2017-07-04 | 北京国电龙源环保工程有限公司 | A kind of absorption tower serum density test coupon road |
| CN206399759U (en) * | 2016-12-30 | 2017-08-11 | 大唐贵州发耳发电有限公司 | A kind of device for serosity density measurement |
| CN207502020U (en) * | 2017-11-03 | 2018-06-15 | 大唐彬长发电有限责任公司 | Desulphurization system absorbing tower liquid-level measuring device |
-
2017
- 2017-11-03 CN CN201711067142.XA patent/CN107677337A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20100041163A (en) * | 2008-10-13 | 2010-04-22 | 한국전력공사 | Method and apparatus for improving the removal rate of sulfur oxides at gas desulfurization process |
| CN202562559U (en) * | 2011-12-31 | 2012-11-28 | 浙江省电力试验研究院 | A liquid level measurement device for absorption tower |
| CN103868822A (en) * | 2013-07-29 | 2014-06-18 | 北京朗新明环保科技有限公司 | Density determination device for slurry in wet desulfurization absorption tower |
| CN204154352U (en) * | 2013-12-10 | 2015-02-11 | 中国神华能源股份有限公司 | The liquid level emasuring device on absorption tower |
| CN204330519U (en) * | 2014-12-01 | 2015-05-13 | 福建鑫泽环保设备工程有限公司 | The device of uninterrupted measurement slurry density of desulfurizing absorption column and pH value |
| CN206168214U (en) * | 2016-10-28 | 2017-05-17 | 大唐贵州发耳发电有限公司 | Close measuring device in absorption tower |
| CN206300811U (en) * | 2016-12-07 | 2017-07-04 | 北京国电龙源环保工程有限公司 | A kind of absorption tower serum density test coupon road |
| CN206399759U (en) * | 2016-12-30 | 2017-08-11 | 大唐贵州发耳发电有限公司 | A kind of device for serosity density measurement |
| CN207502020U (en) * | 2017-11-03 | 2018-06-15 | 大唐彬长发电有限责任公司 | Desulphurization system absorbing tower liquid-level measuring device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108362610A (en) * | 2018-03-25 | 2018-08-03 | 华电电力科学研究院有限公司 | A kind of density that can be self-cleaning and pH value accurate measuring systems and 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 |
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