CN110044834A - A kind of sulfur trioxide on-line monitoring system and method - Google Patents
A kind of sulfur trioxide on-line monitoring system and method Download PDFInfo
- Publication number
- CN110044834A CN110044834A CN201910419472.3A CN201910419472A CN110044834A CN 110044834 A CN110044834 A CN 110044834A CN 201910419472 A CN201910419472 A CN 201910419472A CN 110044834 A CN110044834 A CN 110044834A
- Authority
- CN
- China
- Prior art keywords
- sampling
- condenser pipe
- pipe
- sulfur trioxide
- sulfuric acid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 title claims abstract description 75
- 238000012544 monitoring process Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000005070 sampling Methods 0.000 claims abstract description 76
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 65
- 239000007788 liquid Substances 0.000 claims abstract description 35
- 230000002572 peristaltic effect Effects 0.000 claims abstract description 25
- 239000008896 Opium Substances 0.000 claims abstract description 24
- 229960001027 opium Drugs 0.000 claims abstract description 24
- 238000010438 heat treatment Methods 0.000 claims abstract description 16
- 238000004458 analytical method Methods 0.000 claims abstract description 14
- 230000008054 signal transmission Effects 0.000 claims abstract description 6
- 238000011010 flushing procedure Methods 0.000 claims description 32
- 239000003546 flue gas Substances 0.000 claims description 26
- 239000000243 solution Substances 0.000 claims description 24
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 18
- 239000007789 gas Substances 0.000 claims description 17
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims description 8
- 239000000284 extract Substances 0.000 claims description 7
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000009833 condensation Methods 0.000 claims description 5
- 230000005494 condensation Effects 0.000 claims description 5
- 239000002699 waste material Substances 0.000 claims description 5
- 229910052788 barium Inorganic materials 0.000 claims description 3
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims description 3
- XTUSEBKMEQERQV-UHFFFAOYSA-N propan-2-ol;hydrate Chemical compound O.CC(C)O XTUSEBKMEQERQV-UHFFFAOYSA-N 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 2
- 230000008033 biological extinction Effects 0.000 claims 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims 1
- 230000008676 import Effects 0.000 claims 1
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 description 7
- 238000012360 testing method Methods 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 4
- 239000003595 mist Substances 0.000 description 4
- 238000002835 absorbance Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- PZZOEXPDTYIBPI-UHFFFAOYSA-N 2-[[2-(4-hydroxyphenyl)ethylamino]methyl]-3,4-dihydro-2H-naphthalen-1-one Chemical compound C1=CC(O)=CC=C1CCNCC1C(=O)C2=CC=CC=C2CC1 PZZOEXPDTYIBPI-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- TXKMVPPZCYKFAC-UHFFFAOYSA-N disulfur monoxide Inorganic materials O=S=S TXKMVPPZCYKFAC-UHFFFAOYSA-N 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 238000000870 ultraviolet spectroscopy Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/33—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using ultraviolet light
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The present invention relates to environmental technology fields such as electric power, Industrial Boilers, specially a kind of sulfur trioxide on-line monitoring system and method, including sampling system, analysis system, rinse-system and control system；Sampling system includes sequentially connected heating opium pipe, sulfuric acid collection liquid and multiple sampling condenser pipes being arranged in parallel, sequentially connected gas mass flow meter and aspiration pump；Heating opium pipe input terminal is connected to flue and is sampled, and sampling condenser pipe outlet end connects gas mass flow meter input end；Rinse-system is connected to sampling condenser pipe input end, and sand core plate is arranged in sampling condenser pipe outlet end；Analysis system includes sequentially connected colour developing bed, developing solution liquid storage device, the first peristaltic pump and ultraviolet specrophotometer；The bed input end that develops the color connects sulfuric acid collection liquid outlet end；Control system output end is separately connected rinse-system, aspiration pump, switching solenoid valve group, the first peristaltic pump and ultraviolet specrophotometer, and the solenoid valve for controlling each connecting line on-off by signal transmission interface.
Description
Technical field
The present invention relates to environmental technology fields such as electric power, Industrial Boilers, specially a kind of sulfur trioxide on-line monitoring system
And method.
Background technique
Often contain SO in the flue gas of coal-burning power plant and Industrial Boiler3, SO3It is not only that corrosive pipeline and air preheater is caused to block
Immediate cause, and be also to form the important presoma of PM2.5, Yi Yinfa atmospheric haze.From 2015, domestic various regions phase
Environmental protection administration is closed successively by the SO of coal-burning boiler3Concentration of emission limit value is set to 5mg/m3.Alkaline agent sprays to reduce flue gas in part power plant
In SO3Concentration, SO3It is big by loading effects to generate concentration, SO3Concentration directly decide the amount of injection of alkaline agent.Therefore, very
It is necessary to the SO in coal-fired flue-gas3Concentration is monitored on-line, is that coal-burning power plant and Industrial Boiler prevent and treat air preheater blocking, pipe
Road burn into alkaline agent the amount of injection and SO3Foundation is instructed in the offer of the problems such as discharge beyond standards.
Currently, existing SO3Mensuration is mostly off-line measurement method, cannot achieve the function of on-line monitoring.Although on the market
Existing company develops SO3On-line monitoring equipment, but the technical principle of the equipment has with chinese national standard or international standard
It enters and leaves, measurement accuracy remains to be discussed.Therefore, how to realize to SO in coal-fired flue-gas3The accurate on-line measurement of concentration is ability
Field technique personnel's technical issues that need to address.
Summary of the invention
Aiming at the problems existing in the prior art, the present invention provides a kind of SO3On-line monitoring system and method, are able to achieve pair
SO in coal-fired flue-gas3The accurate on-line measurement of concentration is that coal-burning power plant and Industrial Boiler prevent and treat air preheater blocking, pipeline corruption
Erosion, alkaline agent the amount of injection and SO3Foundation is instructed in the offer of discharge beyond standards problem.
The present invention is to be achieved through the following technical solutions:
A kind of sulfur trioxide on-line monitoring system, including sampling system, analysis system, rinse-system and control system；
The sampling system includes sequentially connected heating opium pipe, sulfuric acid collection liquid and multiple sampling condensations being arranged in parallel
Pipe and sequentially connected gas mass flow meter and aspiration pump；The input terminal of heating opium pipe is connected to flue and is sampled, and adopts
The input end of the outlet end connection gas mass flow meter of sample condenser pipe；The inlet end and an outlet end of sampling condenser pipe is respectively set
Switching solenoid valve group；
The rinse-system is connected to the input end of sampling condenser pipe, samples the outlet end setting sand core plate of condenser pipe；
The analysis system includes sequentially connected colour developing bed, developing solution liquid storage device, the first peristaltic pump and ultraviolet spectrometry
Photometer；The outlet end of the input end connection sulfuric acid collection liquid of colour developing bed；
The output end of the control system is separately connected rinse-system, aspiration pump, switching electricity by signal transmission interface
Magnet valve group, the first peristaltic pump and ultraviolet specrophotometer, and the solenoid valve for controlling each connecting line on-off.
Preferably, it heats in opium pipe and is provided with thermocouple, the end for heating opium pipe is connected through filter with sampling condenser pipe.
Preferably, the rinse-system includes sequentially connected flushing liquid storage tank and the second peristaltic pump, the second peristaltic pump
Sample the input end of condenser pipe；The output end of the control system is separately connected the second peristaltic pump by signal transmission interface.
Further, the outlet end of the second peristaltic pump connects the input end of sampling condenser pipe through liquid storage device.
Preferably, setting samples the switching electromagnetism of the inlet end and an outlet end setting of condenser pipe there are two condenser pipe is sampled
Valve group, for making the condensation of two sampling condenser pipes under control of the control system and rinsing interlocking.
Preferably, thermocouple is provided in the sampling condenser pipe.
Preferably, waste liquid bottle is arranged in the output end of the ultraviolet specrophotometer.
A kind of sulfur trioxide on-line monitoring method, includes the following steps,
Step 1, aspiration pump and a sampling condenser pipe are opened, heated opium pipe extracts flue gas, remaining sampling condenser pipe closes
It closes；Heated opium pipe extracts flue gas, and under the influence of centrifugal force, the sulfuric acid formed after sulfur trioxide is condensed gets rid of cold to the sampling
The tube wall of solidifying pipe acquires the gas volume that air pump extracts by gas mass flow meter；
Step 2, after to be sampled, the sampling condenser pipe for completing sampling is closed, rinse-system is opened and is rinsed with flushing liquor
The sampling condenser pipe of sampling is completed, the sulfuric acid flushing liquor after flushing is collected in sulfuric acid collector, this is closed after flushing and is adopted
Sample condenser pipe；Another sampling condenser pipe is opened while flushing and carries out continuous sampling, remaining sampling condenser pipe is closed；
Step 3, the sulfuric acid flushing liquor of collection carries out chromogenic reaction by colour developing bed and generates ultraviolet solution, by the purple of generation
Solution storage is in developing solution liquid storage device；
Step 4, purple is generated liquid injection ultraviolet specrophotometer and tested by the first peristaltic pump, the absorbance A measured,
The sulfate ion concentration in sulfuric acid flushing liquor, and the sulfuric acid that this is measured are converted by sulfuric acid-chloranilic acid barium standard curve
Ion concentration is passed in control system, in conjunction with the flushing liquor volume of gas volume and the rinse-system control of acquisition, is converted into
SO in flue gas3Concentration, and by this SO3Concentration is shown in the controls.
Preferably, the flushing liquor is at least one of deionized water and isopropanol water solution.
Preferably, heating the heating temperature in opium pipe is 260-300 DEG C, the flue gas that heated opium pipe extracts by filter into
Row dust-filtering.
Compared with prior art, the invention has the following beneficial technical effects:
After the present invention is carried out smoke sampling and kept the temperature or heated using heating opium pipe, three in flue gas are made by aspiration pump
Sulfur oxide sampling condenser pipe in condense and by centrifugal force separate after form sulfuric acid, a small amount of sulfuric acid mist, the gas of collection at large are molten
Glue can further absorb sulfuric acid mist and aerosol and energy impurity screening when through the sand core plate of over-sampling condenser pipe tail portion,
The sulfuric acid sampled in condenser pipe completed in real time with flushing liquor acquisition by rinse-system, condensed gas phase pass through air pump and take out
The gas flow extracted out and by the acquisition of gas mass flow meter；Real-time ensuring has a sampling condenser pipe job, has worked immediately
It rinses；The sulfuric acid flushing liquor in sampling condenser pipe that acquisition is completed carries out chromogenic reaction by colour developing bed and generates purple solution, the
One peristaltic pump tests purple solution injection ultraviolet specrophotometer, and test data is shown in the controls；From
And it can be to the SO in flue gas3Concentration is monitored on-line, the SO in the flue gas of reflection discharge in real time3Concentration.
Further, the flushing liquor in liquid storage tank will be rinsed in real time by the first peristaltic pump, is stored in liquid storage device according to quantity
In, the sampling flue gas in sampling condenser pipe is then subjected to quantitative flushing.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of sulfur trioxide on-line monitoring system described in present example.
In figure: 1- thermocouple, 2- heat opium pipe, 3- filter, the first peristaltic pump of 41-, the second peristaltic pump of 42-, 5- flushing
Liquid storage tank, 6- liquid storage device, 7- sampling condenser pipe, 8- sulfuric acid collector, 9- colour developing bed, 10- developing solution liquid storage device, 11- air pump,
12- gas mass flow meter, 13- ultraviolet specrophotometer, 14- waste liquid bottle, 15- control system, 16- signal transmission interface.
Specific embodiment
Below with reference to specific embodiment, the present invention is described in further detail, it should be noted that following implementations
Example be it is illustrative, be not restrictive, cannot be limited the scope of protection of the present invention with following embodiments.
Sampling system of the invention is the sampling principle that condensation sampling national standard is controlled based on sulfur trioxide, and is arranged extremely
Few two-way samples condenser pipe, opens sampling all the way, and another way is closed, and after immediately close off sampling after the completion of sampling all the way, opens punching
It washes system flush and has just acquired the sampling condenser pipe of sample, while opening another way sampling condenser pipe and continuing to sample, realization is adopted in real time
Sample and monitoring.
The technical principle of sulfate ion analysis system of the invention is to be based on sulfate ion ultra-violet analysis principle, and set
Set colour developing bed, developing solution liquid storage device, peristaltic pump and ultraviolet specrophotometer, the solution that system to be sampled is collected by colour developing bed into
Row chromogenic reaction generates developing solution, is then measured with ultraviolet specrophotometer to developing solution.Measuring principle be sulfate radical from
Sub- uv measurement principle.
The data that sulfate ion analysis system measures are transferred to control system by the present invention, and control system carries out data and changes
It calculates and shows measurement concentration.Specifically, the absorbance A measured by analysis system, is changed by sulfuric acid-chloranilic acid barium standard curve
The sulfate ion concentration being counted as in sulfuric acid flushing liquor, and the sulfate ion concentration that this is measured is passed in control system, knot
Close the gas volume of acquisition and the flushing liquor volume of the second peristaltic pump 42 control, the SO being converted into flue gas3Concentration, and by this SO3
Concentration is shown in control system 13.
A kind of sulfur trioxide on-line monitoring system of the invention, it is specific as follows,
As shown in Figure 1, a kind of sulfur trioxide on-line monitoring system includes sampling system, analysis system and control system 15,
Sampling system includes heating opium pipe 2, sampling condenser pipe 7, aspiration pump 11, gas mass flow meter 12, sulfuric acid collector 8 and rinses
System, rinse-system are made of flushing liquid storage tank 5, peristaltic pump 4 and liquid storage device 6；Analysis system includes colour developing bed 9, developing solution storage
Liquid device 10, peristaltic pump 4, ultraviolet specrophotometer 13 and waste liquid bottle 14.
A kind of sulfur trioxide on-line monitoring method of the invention, it is specific as follows,
It opens aspiration pump 11 and a sampling condenser pipe 7, another sampling condenser pipe 7 is in close state, aspiration pump 11
Heated opium pipe 2 extracts flue gas, and under the influence of centrifugal force, the condensed sulfuric acid of sulfur trioxide is got rid of to sampling condenser pipe 7
On tube wall, after to be sampled, the sampling condenser pipe 7 is closed, opens the sampling condenser pipe 7 that rinse-system rinses acquisition sample,
And open another sampling condenser pipe 7 simultaneously and carry out continuous sampling, the sulfuric acid flushing liquor after flushing is collected in sulfuric acid collector 8
In, the sulfuric acid flushing liquor of collection carries out chromogenic reaction by colour developing bed 9 and generates purple solution, and the purple solution of generation is stored in
In developing solution liquid storage device 10, subsequent peristaltic pump 4 tests purple solution injection ultraviolet specrophotometer 13, and test data exists
It is shown in control system 15, the liquid tested is discharged into waste liquid bottle 14.
Wherein, flushing liquor is any one of deionized water and isopropanol water solution, and the number time is on-line analysis system out
It is adjustable in 0.4~20min.Wherein, filter 3 is used to filter the dust in flue gas；The thermocouple 1 being arranged in heating opium pipe 2 is used
In feeding back the temperature in heating opium pipe 2 to it, control it at 260-300 DEG C temperature；Sample the thermocouple 1 in condenser pipe 7
For the temperature in feedback sample condenser pipe 7, make it by temperature control in the condensation temperature of sulfur trioxide and following.
Main composition in flue gas is SO2And NO, SO2Concentration be 2450mg/m3, the concentration of NO is 280mg/m3, flue gas
Oxygen content be 6.0%, 120 DEG C of temperature.Sampling national standard GB/T 21508-2008 is condensed according to control, is surveyed with offline sampling method
Obtain SO3Concentration be 10.6mg/m3, and the SO in the flue gas is measured with method of the invention3Concentration is 10.1mg/m3, with national standard
Measurement result differs 0.5mg/m3, relative standard deviation is all within 5%.
The steam generation testing stand for building simulation under lab, it is 1.3mg/m that sulfur trioxide concentration, which is respectively configured,3、
2.4mg/m3、5.1mg/m3、10mg/m3、20mg/m3、30mg/m3、50mg/m3、100mg/m3、150mg/m3And 200mg/m3's
Containing SO3Vapor simulation flue gas, the SO detected based on method of the invention3The concentration error of concentration and above-mentioned configuration 2% with
Interior, this illustrates that monitoring method accuracy of the invention is high.
A kind of sulfur trioxide on-line monitoring system of the present invention and method, can sulfur trioxide and sulfuric acid in automatic collection flue gas
Sulfur trioxide and sulfuric acid mist are transferred in sulfuric acid collection liquid by acid mist, and sulfuric acid collection liquid is continuously sent in analysis system
It is analyzed, carry out signal conversion processes eventually by control system and shows measurement numerical value, the sulfur trioxide that can accurately measure
Concentration range can satisfy the SO in coal-fired flue-gas30.5~250mg/m of concentration3Range.
Claims (10)
1. a kind of sulfur trioxide on-line monitoring system, which is characterized in that including sampling system, analysis system, rinse-system and control
System (15) processed；
The sampling system includes that sequentially connected heating opium pipe (2), sulfuric acid collection liquid (8) and multiple samplings being arranged in parallel are cold
Solidifying pipe (7) and sequentially connected gas mass flow meter (12) and aspiration pump (11)；Heat the input terminal connection of opium pipe (2)
It is sampled in flue, the input end of outlet end connection gas mass flow meter (12) of sampling condenser pipe (7)；Sample condenser pipe
(7) switching solenoid valve group is respectively set in inlet end and an outlet end；
The rinse-system is connected to the input end of sampling condenser pipe (7), and sand core is arranged in the outlet end of sampling condenser pipe (7)
Plate；
The analysis system includes sequentially connected colour developing bed (9), developing solution liquid storage device (10), the first peristaltic pump (41) and purple
Outer spectrophotometer (13)；The outlet end of input end connection sulfuric acid collection liquid (8) of colour developing bed (9)；
The output end of the control system (15) is separately connected rinse-system, aspiration pump by signal transmission interface (16)
(11), switching solenoid valve group, the first peristaltic pump (41) and ultraviolet specrophotometer (13), and it is logical for controlling each connecting line
Disconnected solenoid valve.
2. a kind of sulfur trioxide on-line monitoring system according to claim 1, which is characterized in that set in heating opium pipe (2)
It is equipped with thermocouple (1), the end for heating opium pipe (2) is connected through filter (3) with sampling condenser pipe (7).
3. a kind of sulfur trioxide on-line monitoring system according to claim 1, which is characterized in that the rinse-system packet
Sequentially connected flushing liquid storage tank (5) and the second peristaltic pump (42) are included, the second peristaltic pump (42) samples the import of condenser pipe (7)
End；The output end of the control system (15) is separately connected the second peristaltic pump (42) by signal transmission interface (16).
4. a kind of sulfur trioxide on-line monitoring system according to claim 3, which is characterized in that the second peristaltic pump (42)
Outlet end connects the input end of sampling condenser pipe (7) through liquid storage device (6).
5. a kind of sulfur trioxide on-line monitoring system according to claim 1, which is characterized in that setting is cold there are two sampling
Solidifying pipe (7), the switching solenoid valve group of the inlet end and an outlet end setting of sampling condenser pipe (7), in control system (15)
Make the condensation of two samplings condenser pipe (7) under control and rinses interlocking.
6. a kind of sulfur trioxide on-line monitoring system according to claim 1, which is characterized in that the sampling condenser pipe
(7) thermocouple (1) is provided in.
7. a kind of sulfur trioxide on-line monitoring system according to claim 1, which is characterized in that the uv-spectrophotometric
Waste liquid bottle (14) are arranged in the output end for counting (13).
8. a kind of sulfur trioxide on-line monitoring method, which is characterized in that using being as described in claim 1-7 any one
System, includes the following steps,
Step 1, aspiration pump (11) and a sampling condenser pipe (7) are opened, heated opium pipe (2) extracts flue gas, remaining sampling is cold
Solidifying pipe (7) is closed；Heated opium pipe (2) extracts flue gas, under the influence of centrifugal force, the sulfuric acid formed after sulfur trioxide is condensed
It gets rid of to the tube wall of the sampling condenser pipe (7), the gas volume extracted by gas mass flow meter (12) acquisition air pump (11)；
Step 2, after to be sampled, the sampling condenser pipe (7) for completing sampling is closed, rinse-system is opened and has been rinsed with flushing liquor
At the sampling condenser pipe (7) of sampling, the sulfuric acid flushing liquor after flushing is collected in sulfuric acid collector (8), closes after flushing
The sampling condenser pipe (7)；Another sampling condenser pipe (7) is opened while flushing carries out continuous sampling, remaining sampling condenser pipe
(7) it closes；
Step 3, the sulfuric acid flushing liquor of collection carries out chromogenic reaction by colour developing bed (9) and generates ultraviolet solution, by the purple of generation
Solution storage is in developing solution liquid storage device (10)；
Step 4, purple is generated liquid injection ultraviolet specrophotometer (13) and tested by the first peristaltic pump (41), the extinction measured
A is spent, the sulfate ion concentration in sulfuric acid flushing liquor is converted by sulfuric acid-chloranilic acid barium standard curve, and this is measured
Sulfate ion concentration is passed in control system, in conjunction with the flushing liquor volume of gas volume and the rinse-system control of acquisition, is changed
The SO being counted as in flue gas3Concentration, and by this SO3Concentration is shown in control system (13).
9. a kind of sulfur trioxide on-line monitoring method according to claim 8, which is characterized in that the flushing liquor is to go
At least one of ionized water and isopropanol water solution.
10. a kind of sulfur trioxide on-line monitoring method according to claim 8, which is characterized in that in heating opium pipe (2)
Heating temperature is 260-300 DEG C, and the flue gas that heated opium pipe (2) is extracted carries out dust-filtering by filter (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910419472.3A CN110044834A (en) | 2019-05-20 | 2019-05-20 | A kind of sulfur trioxide on-line monitoring system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910419472.3A CN110044834A (en) | 2019-05-20 | 2019-05-20 | A kind of sulfur trioxide on-line monitoring system and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110044834A true CN110044834A (en) | 2019-07-23 |
Family
ID=67282703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910419472.3A Pending CN110044834A (en) | 2019-05-20 | 2019-05-20 | A kind of sulfur trioxide on-line monitoring system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110044834A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110426251A (en) * | 2019-08-30 | 2019-11-08 | 华能国际电力股份有限公司 | A kind of sulfur trioxide on-line sampling device and method |
| CN110954377A (en) * | 2019-12-03 | 2020-04-03 | 华电电力科学研究院有限公司 | SO in flue gas based on condensation separation3Detection device and method |
| CN110987839A (en) * | 2019-12-27 | 2020-04-10 | 西安热工研究院有限公司 | Intermittent sulfur trioxide online measuring equipment and method |
| CN112147287A (en) * | 2020-10-21 | 2020-12-29 | 西安热工研究院有限公司 | Online measurement system and method for HCl in flue gas |
| CN112945887A (en) * | 2021-03-11 | 2021-06-11 | 西安交通大学 | Flue gas in-situ monitoring system and method |
| CN113125212A (en) * | 2021-04-15 | 2021-07-16 | 哈尔滨工程大学 | Aerosol sampling pretreatment system suitable for closed space fire condition |
| CN113552285A (en) * | 2021-05-28 | 2021-10-26 | 华电电力科学研究院有限公司 | Online flue gas sulfur trioxide intermittent monitoring equipment and method |
| WO2023010634A1 (en) * | 2021-08-06 | 2023-02-09 | 西安热工研究院有限公司 | Quick-response online continuous measurement system for sulfur trioxide and method therefor |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103472061A (en) * | 2013-08-27 | 2013-12-25 | 浙江大学 | Device and method for detecting sulfur trioxide in flue gas on line |
| CN106501443A (en) * | 2016-10-31 | 2017-03-15 | 杭州意能电力技术有限公司 | For testing the test system of sulfur trioxide concentration and its condenser in flue gas |
| CN206082073U (en) * | 2016-07-25 | 2017-04-12 | 西安热工研究院有限公司 | System for adsorbent circulation demercuration of can regenerating is retrieved with mercury |
| CN106596427A (en) * | 2016-12-15 | 2017-04-26 | 东南大学 | Device and method for measuring SO3 in industrial waste gas online |
| CN109254124A (en) * | 2018-10-31 | 2019-01-22 | 华能国际电力股份有限公司 | A kind of SO3Concentration on-line measuring device and method |
| CN109342284A (en) * | 2018-10-22 | 2019-02-15 | 北京清新环境技术股份有限公司 | A kind of detection system and detection method for harmful substances from flue gases |
| CN109632408A (en) * | 2019-02-21 | 2019-04-16 | 中国华电科工集团有限公司 | SO in a kind of flue gas3Self-operated measuring unit and method |
| CN208766151U (en) * | 2018-05-29 | 2019-04-19 | 深圳睿境环保科技有限公司 | SO in a kind of on-line checking flue gas3The system of content |
-
2019
- 2019-05-20 CN CN201910419472.3A patent/CN110044834A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103472061A (en) * | 2013-08-27 | 2013-12-25 | 浙江大学 | Device and method for detecting sulfur trioxide in flue gas on line |
| CN206082073U (en) * | 2016-07-25 | 2017-04-12 | 西安热工研究院有限公司 | System for adsorbent circulation demercuration of can regenerating is retrieved with mercury |
| CN106501443A (en) * | 2016-10-31 | 2017-03-15 | 杭州意能电力技术有限公司 | For testing the test system of sulfur trioxide concentration and its condenser in flue gas |
| CN106596427A (en) * | 2016-12-15 | 2017-04-26 | 东南大学 | Device and method for measuring SO3 in industrial waste gas online |
| CN208766151U (en) * | 2018-05-29 | 2019-04-19 | 深圳睿境环保科技有限公司 | SO in a kind of on-line checking flue gas3The system of content |
| CN109342284A (en) * | 2018-10-22 | 2019-02-15 | 北京清新环境技术股份有限公司 | A kind of detection system and detection method for harmful substances from flue gases |
| CN109254124A (en) * | 2018-10-31 | 2019-01-22 | 华能国际电力股份有限公司 | A kind of SO3Concentration on-line measuring device and method |
| CN109632408A (en) * | 2019-02-21 | 2019-04-16 | 中国华电科工集团有限公司 | SO in a kind of flue gas3Self-operated measuring unit and method |
Non-Patent Citations (2)
| Title |
|---|
| 小林义隆 编著: "《作业环境的有害物质测定》", 28 February 1983, 冶金工业出版社 * |
| 莫利斯∙卡茨等: "《空气采样与分析方法》", 30 June 1982, 人民卫生出版社 * |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110426251A (en) * | 2019-08-30 | 2019-11-08 | 华能国际电力股份有限公司 | A kind of sulfur trioxide on-line sampling device and method |
| CN110954377A (en) * | 2019-12-03 | 2020-04-03 | 华电电力科学研究院有限公司 | SO in flue gas based on condensation separation3Detection device and method |
| CN110987839A (en) * | 2019-12-27 | 2020-04-10 | 西安热工研究院有限公司 | Intermittent sulfur trioxide online measuring equipment and method |
| CN112147287A (en) * | 2020-10-21 | 2020-12-29 | 西安热工研究院有限公司 | Online measurement system and method for HCl in flue gas |
| CN112147287B (en) * | 2020-10-21 | 2024-01-23 | 西安热工研究院有限公司 | Online measurement system and method for HCl in flue gas |
| CN112945887A (en) * | 2021-03-11 | 2021-06-11 | 西安交通大学 | Flue gas in-situ monitoring system and method |
| CN112945887B (en) * | 2021-03-11 | 2023-12-19 | 西安交通大学 | Flue gas in-situ monitoring system and method |
| CN113125212A (en) * | 2021-04-15 | 2021-07-16 | 哈尔滨工程大学 | Aerosol sampling pretreatment system suitable for closed space fire condition |
| CN113552285A (en) * | 2021-05-28 | 2021-10-26 | 华电电力科学研究院有限公司 | Online flue gas sulfur trioxide intermittent monitoring equipment and method |
| WO2023010634A1 (en) * | 2021-08-06 | 2023-02-09 | 西安热工研究院有限公司 | Quick-response online continuous measurement system for sulfur trioxide and method therefor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110044834A (en) | A kind of sulfur trioxide on-line monitoring system and method | |
| CN106053375B (en) | A kind of coal-fired plant flue gas pollutant minimum discharge on-line monitoring system | |
| CN201207023Y (en) | On-line measurement system for boiler discharging flue gas field | |
| CN105004761A (en) | Denitration system escaping ammonia on-line continuous monitoring device and method | |
| WO2021098447A1 (en) | Device and method for low-concentration total particle sampling of flue gas from thermal power plant | |
| CN1995956A (en) | Method and device for detecting SO3 content in flue gas | |
| CN109342284A (en) | A kind of detection system and detection method for harmful substances from flue gases | |
| CN105354358B (en) | Wet electrical dust precipitator performance on-site verification method and system | |
| CN109254124A (en) | A kind of SO3Concentration on-line measuring device and method | |
| CN110763811A (en) | Ammonia escape grid sampling device and detection method | |
| CN206038527U (en) | Coal fired power plant smoke pollutants minimum discharge on -line monitoring system | |
| CN208092007U (en) | A kind of fired power generating unit is pluggable, diversification interface type CO2Monitoring system | |
| CN113959792A (en) | Device and method for measuring mercury in flue gas based on low-temperature plasma pyrolysis | |
| CN110044835A (en) | Sulfur trioxide on-line analysis system and method | |
| CN207502430U (en) | It is a kind of can on-line proving bypass sampling type micro-wave survey unburned carbon in flue dust equipment | |
| CN106053156B (en) | Flue gas sampling device and method | |
| CN209229756U (en) | It is a kind of to detect the safety device for improving heat accumulation type thermal oxidation furnace based on LEL | |
| CN109765275B (en) | Method and device for rapidly detecting hydrogen sulfide content of crude oil on line outdoors | |
| CN215866401U (en) | Quick-response online continuous sulfur trioxide measurement system | |
| CN111766341B (en) | Correction method for sulfur trioxide concentration test in industrial waste gas | |
| CN206020116U (en) | A kind of flue gas sampling device | |
| CN115201407A (en) | Sulfur trioxide measuring device, flue gas analyzer and sulfur trioxide measuring method | |
| CN210090314U (en) | Sulfur trioxide on-line monitoring system | |
| CN209117651U (en) | A kind of SO3Concentration on-line measuring device | |
| CN209459973U (en) | A kind of Thermal generation unit SCR denitration exiting flue gas sampler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 100031, 6, Fuxing Avenue, Xicheng District, Beijing Applicant after: HUANENG POWER INTERNATIONAL Inc. Applicant after: Xi'an Thermal Power Research Institute Co.,Ltd. Address before: 100031 Beijing city Xicheng District Fuxingmen South Street No. 2 C Applicant before: HUANENG POWER INTERNATIONAL Inc. Applicant before: Xi'an Thermal Power Research Institute Co.,Ltd. |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190723 |