CN206740577U - Slurry density of desulfurizing absorption column monitoring system - Google Patents
Slurry density of desulfurizing absorption column monitoring system Download PDFInfo
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- CN206740577U CN206740577U CN201720314517.7U CN201720314517U CN206740577U CN 206740577 U CN206740577 U CN 206740577U CN 201720314517 U CN201720314517 U CN 201720314517U CN 206740577 U CN206740577 U CN 206740577U
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- measurement
- monitoring system
- tank
- pressure difference
- measurement tank
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- 238000010521 absorption reaction Methods 0.000 title claims abstract description 30
- 239000002002 slurry Substances 0.000 title claims abstract description 28
- 238000012544 monitoring process Methods 0.000 title claims abstract description 22
- 230000003009 desulfurizing effect Effects 0.000 title claims abstract description 11
- 238000005259 measurement Methods 0.000 claims abstract description 57
- 239000007788 liquid Substances 0.000 claims abstract description 18
- 238000011010 flushing procedure Methods 0.000 claims description 19
- 239000000523 sample Substances 0.000 claims description 4
- 239000004743 Polypropylene Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- -1 polypropylene Polymers 0.000 claims description 3
- 229920001155 polypropylene Polymers 0.000 claims description 3
- 238000004140 cleaning Methods 0.000 claims description 2
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 11
- 210000002966 serum Anatomy 0.000 description 10
- 238000006477 desulfuration reaction Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 230000023556 desulfurization Effects 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000000151 deposition Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 229910052602 gypsum Inorganic materials 0.000 description 2
- 239000010440 gypsum Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 208000019155 Radiation injury Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000012857 radioactive material Substances 0.000 description 1
- 238000003904 radioactive pollution Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
Slurry density of desulfurizing absorption column monitoring system,It is connected in parallel on the Sprayer Circulation pipeline on absorption tower,Including measuring tank,The measurement tank skin thickness is 4 ~ 6mm,Inside diameter is 130 ~ 160mm,Volume space is highly 1.5 ~ 2.5m,Its bottom is cone bucket structure,And this cone bucket structural base is provided with liquid inlet,Then closed by blind flange at top,And it is provided with two pressure difference measuring interfaces in the homonymy side wall of measurement tank,The difference in height of two pressure difference measuring interfaces is 1 ~ 2m,And double flange diaphragm type pressure transmitters are installed on two pressure difference measuring interfaces,A differential pressure transmitter is in series between two pressure difference measuring interfaces simultaneously,In addition,On top, another upper lateral part of pressure difference measuring interface is provided with the overfall towards absorption tower,The overfall is extend on the slurries liquid level on absorption tower by pipeline.The utility model can effectively improve accuracy of measurement, extend the service life of measuring instrumentss, reduce measurement apparatus cost and maintenance cost.
Description
Technical field
Data monitoring technical field is the utility model is related to, specially a kind of desulfurization being used in wet method fume desulfurizing system
Absorption tower serum density monitoring system.
Background technology
In wet limestone-gypsum FGD system, it usually needs the parameters of environment in absorption tower are monitored,
Wherein, absorption tower serum density is important data, and it directly connects the desulfuration efficiency for the system of having influence on, desulfurizing agent disappears
The stable operation of consumption, the quality of accessory substance or even desulphurization system.In general, in sweetening process, slurries in absorption tower
Between 14 ~ 22%, each desulfurization company of density values is more or less the same concentration general control, and general control 1050 ~
1150kg/m3Between.
The most-often used density measure mode of wet method fume desulfurizing system mainly has three kinds at present：Utilize Coriolis stream
Gauge direct measurement, differential pressure method measurement and the measurement of gamma-rays radiation absorption mensuration.
Wherein, when being measured using Coriolis flowmeter, its principle is to influence flowmeter resonance frequency by serum density
Rate, the change of vibration parameters is detected, serum density is then calculated by the conversion of physical quantity, it is deposited during converting
In multiple links for producing easy error such as linear distortion, thus measurement data floating is larger, meanwhile, Coriolis flowmeter
Easily cause pipeline blockage in the larger slurries class material of measurement density and cause measurement to terminate, if increase passes through flowmeter
Flow, although the continuity of measurement can be ensured, flowmeter abrasion can be accelerated, cause measurement pipe mechanical structure to change,
And then damage flowmeter.
Differential pressure method measurement is a kind of method of differential pressure between measurement absorption tower different height, and what is obtained is agitator in tower, slurry
Serum density under liquid circulating pump, oxidation fan running status, now the slurries in absorption tower be under suspended state, be not steady
Serum density under state, and the serum density deviation being actually needed is big and deviation mobility scale is larger.
Gamma-rays radiation absorption mensuration is utilized by different densities slurries to radiological dose decay difference, is detected through slurry
Radiological dose after liquid, physical quantity conversion is carried out, serum density is then convert into, although its measurement accuracy is higher, special
In the case of can also have linear distortion equal error link.Simultaneously as gamma-rays radiation absorption mensuration utilizes radioactive material
Matter is aided in, and radioactive pollution is caused to surrounding environment, also there is certain radiation injury to operating personnel, thus is supervised more
Strictly, operation difficulty is high, equipment is expensive, limits use range.
For these reasons, the equal Shortcomings of existing monitoring mode, it is impossible to meet that serum density is surveyed in desulfuration absorbing tower
System stable operation, the needs of accurate measurement are measured, accurately absorption tower can not be controlled to run, desulfurizing byproduct gypsum can not be ensured
Quality, influence whole system smoke desulfurization efficiency.
Utility model content
The technical problem that the utility model solves is to provide a kind of slurry density of desulfurizing absorption column monitoring system, with solution
The shortcomings that in certainly above-mentioned background technology.
The technical problem that the utility model solves is realized using following technical scheme：
Slurry density of desulfurizing absorption column monitoring system, it is connected in parallel on the Sprayer Circulation pipeline on absorption tower, including measurement tank, institute
It is 4 ~ 6mm to state measurement tank skin thickness, and inside diameter is 130 ~ 160mm, and volume space is highly 1.5 ~ 2.5m, and its bottom is cone bucket knot
Structure, and this cone bucket structural base is provided with liquid inlet, top is then closed by blind flange, and in the homonymy side wall of measurement tank
Two pressure difference measuring interfaces are provided with, the difference in height of two pressure difference measuring interfaces is 1 ~ 2m, and is pacified on two pressure difference measuring interfaces
Equipped with double flange diaphragm type pressure transmitters, while a differential pressure transmitter is in series between two pressure difference measuring interfaces, separately
Outside, overfall towards absorption tower is provided with another upper lateral part of top pressure difference measuring interface, the overfall is stretched into by pipeline
To on the slurries liquid level on absorption tower.
In the utility model, the measurement tank preferably uses polypropylene tank body.
In the utility model, the arrival end of the measurement tank is provided with the adjustable restriction orifice in aperture, is limited by changing
The aperture of discharge orifice plate can adjust the slurry flow rate in measurement tank, slurry stream in tank is moved steadily and is not deposited fouling.
In the utility model, it is 30 ° ~ 45 ° obliquely settings to measure two pressure difference measuring interfaces set on pot sidewall
To avoid depositing fouling.
In the utility model, the both sides of the differential pressure transmitter are provided with single flushing interface and magnetic valve comes to difference
The detection probe of pressure transmitter is cleared up to keep accuracy.
In the utility model, pH value measuring instrument is also equipped with the measurement tank top blind flange, to monitoring in real time
The pH value of sprayed slurry, and it is provided with pH value measuring instrument single flushing interface and magnetic valve carrys out inspection to pH value measuring instrument
Probing head is cleared up to keep accuracy.
In the utility model, independence is respectively arranged with the pipeline corresponding to the liquid inlet and overfall of the measurement tank
The liquid-inlet valve door and liquid valve door of control, meanwhile, it is also associated with rushing between the liquid inlet of the liquid-inlet valve door and measurement tank
Pipeline is washed to be rinsed cleaning to measurement tank to keep accuracy.
In the utility model, manual emptying valve is provided with below the measurement tank, for when device is stopped transport or is overhauled
Discharge the slurries in measurement apparatus.
The advantages of the utility model and beneficial effect are：
Measurement pipeline is connect 1. drawing from circulating-pump outlet pipeline, is avoided installed in the density measuring equipment absorbed in tower wall
Measurement result caused by measured value caused by being disturbed by agitator and oxidation air is fluctuated, and installation site is improper can not be anti-
The problem of reflecting tower bottom true slurry density.
Measurement pipeline is connect 2. drawing from circulating-pump outlet pipeline, avoids to draw to connect pipe gravity flow pipeline and drain into trench from tower bottom and leads
The problem of sump pump frequent starting of cause.
3. being measured at one on tank, packing density and pH value measuring instrumentss, concentration measurement serum density and pH value two are big simultaneously
Parameter, reduce the complexity of measuring system, add the reliability and accuracy of measurement apparatus, and measurement overall process can be realized
Automatically control, and reduce cost of installation and maintenance.
Brief description of the drawings
Fig. 1 is the schematic diagram of the utility model preferred embodiment.
Fig. 2 is the structural representation that the utility model preferred embodiment measures tank.
Wherein：1st, absorption tower；2nd, Sprayer Circulation pump；3rd, shower；4th, liquid-inlet valve door；5th, the first flushing valve；6th, current limliting
Orifice plate；7th, manual emptying valve；8th, tank is measured；9th, blind flange；10th, liquid valve door；11st, differential pressure transmitter；12nd, pH value measures
Instrument；13rd, the second flushing valve；14th, the 3rd flushing valve；15th, the 4th flushing valve.
Embodiment
In order that technological means, creation characteristic, reached purpose and effect that the utility model is realized are easy to understand, under
Face combines and is specifically illustrating, and the utility model is expanded on further.
Referring to the preferred embodiment of Fig. 1, Fig. 2 slurry density of desulfurizing absorption column monitoring system, in the present embodiment, monitoring
System is molded over by the side of absorption tower 1, and Sprayer Circulation pipeline is provided with by the side of absorption tower 1, and the Sprayer Circulation pipeline includes spray
Circulating pump 2 and shower 3.And monitoring system is molded over the pipeline being molded directly between Sprayer Circulation pump 2 and shower 3
On.
Monitoring system main body is measurement tank 8, and the measurement tank 8 is polypropylene tank body, and its wall thickness is 5mm, and inside diameter is
150mm, volume space are highly 2m, and its bottom is cone bucket structure, and this cone bucket structural base is provided with liquid inlet, and is being entered
Liquid mouth position is provided with restriction orifice 6, and the bottom of restriction orifice 6 is provided with manual emptying valve 7；It is and logical at the top of measurement tank 8
Cross blind flange 9 to close, multiple screwed holes are provided with blind flange 9, and pH value measuring instrument 12 is installed in screwed hole.Measure tank
Two pressure difference measuring interfaces are provided with 8 homonymy side wall, the difference in height of two pressure difference measuring interfaces is 1.3m, and in two pressure differences
Double flange diaphragm type pressure transmitters are installed on measurement interface, while a difference is in series between two pressure difference measuring interfaces
Pressure transmitter 11.
The present embodiment at work, measures corresponding inlet pipeline on tank 8 and draws from circulating-pump outlet pipeline and connect, carry out blowing
The slurries for drenching circulating pump 2 enter the restriction orifice of the inlet ductwork, the then measured bottom of tank 8 that measure tank 8 through liquid-inlet valve door 4
6, enter from bottom in measurement tank 8, pass upward through overfall and flow into outlet conduit, finally return to absorption tower by liquid valve door 10
In 1.In the process, restriction orifice 6 can measure slurry flow rate in tank 8 by changing aperture adjustment, make slurries in the tank of measurement tank 8
Flowing is steady and does not deposit fouling.And the differential pressure transmitter 11 installed in the measurement side wall of tank 8 is used for measuring between two interfaces
Differential pressure value, and this differential pressure value is scaled slurry density value output.
In the present embodiment, the pH that the pH value measuring instrument 12 installed on the top flange lid 9 of tank 8 can be used to measure slurries is measured
Value, the pH value that pH value measuring instrument 12 measures upload to system after averaging, the foundation that can also be controlled as desulphurization system.
And it is respectively arranged with flushing line and the second flushing valve in the pin position of the both sides of differential pressure transmitter 11 and pH value measuring instrument 12
The 13, the 3rd flushing valve 14 of door and the 4th flushing valve 15, the external technique flushing water of these flushing lines, for auto-flushing
Meter probe.Meanwhile it is also equipped with flushing line and the first flushing valve 5, the flush pipe in the inlet ductwork of measurement tank 8
The equally external technique flushing water in road, further prevent slurries from depositing structure for rinsing whole measurement tank 8.The lower section of measurement tank 8 is set
There is manual emptying valve 7, for discharging the slurries in monitoring system when device is stopped transport or is overhauled.
The present embodiment solves the problems of traditional measurement method well, and the automatic prison of measurement overall process can be achieved
Survey, improve accuracy of measurement, extend the service life of measuring instrumentss, reduce measurement apparatus cost and maintenance cost
The advantages of general principle of the present utility model, principal character and the utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification
Simply illustrate principle of the present utility model, on the premise of the spirit and scope of the utility model is not departed from, the utility model is also
Various changes and modifications are had, these changes and improvements are both fallen within claimed the scope of the utility model.The utility model
Claimed scope is by appended claims and its equivalent thereof.
Claims (8)
1. slurry density of desulfurizing absorption column monitoring system, it is connected in parallel on the Sprayer Circulation pipeline on absorption tower, it is characterised in that including
Tank is measured, the measurement tank skin thickness is 4 ~ 6mm, and inside diameter is 130 ~ 160mm, and volume space is highly 1.5 ~ 2.5m, its bottom
Portion is cone bucket structure, and this cone bucket structural base is provided with liquid inlet, and top is then closed by blind flange, and in measurement tank
Two pressure difference measuring interfaces are provided with homonymy side wall, the difference in height of two pressure difference measuring interfaces is 1 ~ 2m, and is surveyed in two pressure differences
Double flange diaphragm type pressure transmitters are installed on amount interface, while a differential pressure is in series between two pressure difference measuring interfaces
Transmitter, in addition, another upper lateral part in top pressure difference measuring interface is provided with overfall towards absorption tower, the overfall passes through
Pipeline is extend on the slurries liquid level on absorption tower.
2. monitoring system according to claim 1, it is characterised in that the measurement tank is polypropylene tank body.
3. monitoring system according to claim 1, it is characterised in that it is adjustable that the arrival end of the measurement tank is provided with aperture
Restriction orifice.
4. monitoring system according to claim 1, it is characterised in that two pressure differences set on measurement pot sidewall are surveyed
Interface is measured as 30 ° ~ 45 ° obliquely settings.
5. monitoring system according to claim 1, it is characterised in that the both sides of the differential pressure transmitter are provided with individually
Flushing interface and magnetic valve are cleared up the detection probe of differential pressure transmitter.
6. monitoring system according to claim 1, it is characterised in that be provided with pH value on the measurement tank top blind flange
Measuring instrument, and it is provided with single flushing interface on the pH value measuring instrument and magnetic valve detection probe is cleared up.
7. monitoring system according to claim 1, it is characterised in that corresponding to the liquid inlet and overfall of the measurement tank
Pipeline on be respectively arranged with the liquid-inlet valve door and liquid valve door of independent control, and in the liquid inlet of liquid-inlet valve door and measurement tank
Between be also associated with flushing line come to measurement tank be rinsed cleaning.
8. monitoring system according to claim 1, it is characterised in that be provided with manual emptying valve below the measurement tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720314517.7U CN206740577U (en) | 2017-03-29 | 2017-03-29 | Slurry density of desulfurizing absorption column monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720314517.7U CN206740577U (en) | 2017-03-29 | 2017-03-29 | Slurry density of desulfurizing absorption column monitoring system |
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| Publication Number | Publication Date |
|---|---|
| CN206740577U true CN206740577U (en) | 2017-12-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720314517.7U Expired - Fee Related CN206740577U (en) | 2017-03-29 | 2017-03-29 | Slurry density of desulfurizing absorption column monitoring system |
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| Country | Link |
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| CN (1) | CN206740577U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108801850A (en) * | 2018-06-21 | 2018-11-13 | 国电环境保护研究院有限公司 | A kind of flue gas wet flue gas desulfurization gypsum slurries are in line density and pH value combined measurement device and measurement method |
| CN109030739A (en) * | 2018-07-31 | 2018-12-18 | 中国大唐集团科学技术研究院有限公司西北分公司 | A kind of pH value of slurry of desulfuration absorption tower and density online testing device and method |
| CN113617516A (en) * | 2021-06-21 | 2021-11-09 | 中国矿业大学 | Dense medium density control device for coal preparation plant and use method |
-
2017
- 2017-03-29 CN CN201720314517.7U patent/CN206740577U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108801850A (en) * | 2018-06-21 | 2018-11-13 | 国电环境保护研究院有限公司 | A kind of flue gas wet flue gas desulfurization gypsum slurries are in line density and pH value combined measurement device and measurement method |
| CN109030739A (en) * | 2018-07-31 | 2018-12-18 | 中国大唐集团科学技术研究院有限公司西北分公司 | A kind of pH value of slurry of desulfuration absorption tower and density online testing device and method |
| CN113617516A (en) * | 2021-06-21 | 2021-11-09 | 中国矿业大学 | Dense medium density control device for coal preparation plant and use method |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171212 |