CN106596198A - Online SO3 measuring system and method - Google Patents
Online SO3 measuring system and method Download PDFInfo
- Publication number
- CN106596198A CN106596198A CN201611183943.8A CN201611183943A CN106596198A CN 106596198 A CN106596198 A CN 106596198A CN 201611183943 A CN201611183943 A CN 201611183943A CN 106596198 A CN106596198 A CN 106596198A
- Authority
- CN
- China
- Prior art keywords
- sampling
- reaction tube
- hydrogen chloride
- filter
- measuring system
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2247—Sampling from a flowing stream of gas
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/2202—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling
- G01N1/2205—Devices for withdrawing samples in the gaseous state involving separation of sample components during sampling with filters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
Abstract
The invention relates to an on-line SO3 measuring system and a method thereof, belongs to the field of gas sampling and measuring, and in order to solve the problems of complex system, inaccurate measurement and incapability of real-time monitoring of SO3 measuring systems in the prior art. The on-line SO3 measuring system comprises a heater, a sampling tube, a filter, a reaction tube, an air compressor, a diluting device, a flow meter, a hydrogen chloride detector and a sampling pump. When flue gas passes through the high temperature heater, sulfuric acid droplets are all converted into sulfuric acid vapor, and a quartz or ceramic filter can effectively remove dust particles in a sample gas. The sulfuric acid vapor can be reacted with calcium chloride in the reaction tube to produce hydrogen chloride, according to a value displayed by the hydrogen chloride detector, a sample gas dilution ratio, and stoichiometric coefficient ratio of the sulfuric acid vapor and the hydrogen chloride, the concentration of the sulfuric acid vapor is determined, and then the concentration of SO3 in the flue gas is determined. The on-line SO3 measuring system is mainly used for sampling and measuring of SO3 / H2SO4 in the flue gas emitted from coal-fired boilers.
Description
Technical field
The present invention relates to a kind of online sulfur trioxide measuring system and method, mainly in flue gas discharged from coal-fired boiler
SO3/H2SO4Sampling and measuring.
Background technology
Other pollutants are compared, SO in flue gas discharged from coal-fired boiler3Concentration it is relatively low, but can to flue downstream equipment and
Atmospheric environment produces larger harm.SO3Sulfuric acid mist can be combined to form with steam after spray column, easily corrosion flue afterbody
Pipe-line equipment.For the unit equipped with the out of stock equipment of SCR, SO3Can be with excessive NH3Reaction generates emplastic, so as to block
Catalyst surface micropore, shortens the service life of catalyst.Additionally, the acid dew point and SO of flue gas3Content has direct relation, SO3's
Increase improves can acid dew point, thus can increase the corrosion risk of the equipment such as air preheater, deduster.At the same time, air is entered
The SO of environment3Easily produce acid rain and blue plumage phenomenon, serious harm human body health.
Currently, for the control of sulphur in coal-burning boiler, most of desulfurization units employ Wet Flue Gas Desulfurization Technique.Although wet method
Desulphurization system can effectively remove the SO in flue gas2, but to SO3Removal efficiency it is relatively low.The SO not being removed3In wet desulphurization
Sulfuric acid droplet is easily converted in system, heavy corrosion is caused to follow-up equipment.SO3Not only produce in burner hearth, can also be in SCR
Generate in denitrification process.Correlative study shows：SCR catalyst can promote conversion of the sulfur dioxide to sulfur trioxide, so that cigarette
Sulfur trioxide concentration in gas is greatly improved.Therefore, to SO3Control need to further strengthen.Correspondingly, coal-burning boiler is arranged
Put SO in flue gas3Detection equally merit attention.SO3Detection be evaluate control technology and formulate discharge standard basis, be also
Power plant's reducing energy consumption, the foundation for reducing discharge.
For the detection of sulfur trioxide, common flue gas analyzer cannot be measured.This is due to SO3Gas easily moisture absorption,
Sulfuric acid vapor is generated with vapor reaction.When the concentration of sulfuric acid vapor reaches the acid dew point limit, sulfuric acid droplets can be produced, can be tight
Heavy corrosion instrument.
Currently, modal SO3Detection method is control condensation method and isopropanol method.Control condensation method is generally believed that and is
Accurate method, but control condensation method system complex, heating process and temperature-fall period all need to control temperature.Additionally, control
Condensation method processed also non real-time e measurement technology, the detection of sulfate ion is equally wasted time and energy.Although isopropanol method can absorb
SO3, but while can also absorb part SO2, therefore the concentration of sulfate ion in solution can be increased, form overgauge.
The content of the invention
For existing sulfur trioxide e measurement technology system complex, measure it is inaccurate, cannot real-time monitoring deficiency, the present invention
There is provided a kind of online sulfur trioxide sampling and measuring system and method.
The present invention is adopted the technical scheme that to solve above-mentioned technical problem：
A kind of online sulfur trioxide sampling and measuring system, it includes heater, sampling pipe, filter, reaction tube, dilution
Device, air compressor machine, flowmeter, hydrogen chloride detector and sampling pump.
Filter, reaction tube, diluter, flowmeter, hydrogen chloride detector, sampling pump pass sequentially through connecting tube connection, adopt
The sample pipe port of export is connected with filter inlet end, and filter outlet end is connected with reaction tube arrival end by first paragraph connecting tube,
The reaction tube port of export is connected with diluter arrival end by second segment connecting tube, and the diluter port of export passes through the 3rd section with sampling pump
Connecting tube connects；Heater is wrapped in around sampling pipe, filter, reaction tube, and air compressor machine is connected with diluter.
The sampling pipe is polytetrafluoroethylene (PTFE) making.
The filter is Guartz filter or ceramic filter.
The reaction tube is polytetrafluoroethylene (PTFE) making, and reaction tube is imported and exported two ends and is detachably connected using cutting ferrule mode, instead
Should backstop made by the arrangement glass fiber high-temperature cotton of pipe two ends.
The heater is temp. controllable, thermostatic type spiral winding resistance heater.
The diluter is ejection-type diluter.
Hydrogen chloride detector is handheld portable hydrogen chloride detector, and precision is 0.001ppm, and range is 0-10ppm.
The flowmeter and sampling pump are respectively gas glass rotameter and without oil type vavuum pump.
A kind of online SO3Measuring method, methods described is comprised the following steps：
Step one：The calcium chloride powder of enough quality is weighed using high Accuracy Electronic Balance, and calcium chloride powder is rapid
Load reaction tube, prevent calcium chloride powder from absorbing water in atmosphere, at reaction tube two ends glass fiber high-temperature cotton backstop is arranged, prevent
Reactive material is skidded off in reaction tube；
Step 2：Start sampling pump, and sampling flow is adjusted according to flowmeter, then start air compressor machine, air compressor machine is set
Pressure, after treating stable operation, the heater of heater 101, and temperature is set for 200 DEG C -300 DEG C；
Step 3：After treating temperature stabilization, sampling pipe is inserted in flue thieff hatch, start hydrogen chloride detector, continuously
Monitoring sampling, after treating registration stably, extract out sampling pipe, stop heater heating, package unit cooling after, close sampling pump and
Air compressor machine；
Step 4：The stoichiometry system of registration, sample gas thinner ratio, sulfuric acid vapor and hydrogen chloride according to hydrogen chloride detector
The ratio of number determines the concentration of sulfur trioxide in flue gas determining the concentration of sulfuric acid vapor；
The invention has the advantages that：
The characteristics of present invention has simple structure, easy to use, measurement accurately and can realize continuous on-line monitoring.The present invention
Using Guartz filter or ceramic filter, the dust granules in sample gas can be effectively removed.Using the heating with attemperating unit
Device, can effectively adjust sample temperature degree, it is ensured that temperature is in constant scope.The present invention using be equipped with calcium chloride powder reaction tube come
The sulfuric acid vapor in sampling gas is absorbed, it is 1/2 that reactant sulfuric acid vapor is constant with the ratio of the stoichiometric coefficient of product hydrogen chloride,
Measurement reaction can be passed through and generate the concentration effective detection sulfuric acid vapor of hydrogen chloride and the concentration of sulfur trioxide.The present invention is using injection
Type diluter, sampling flue gas can fully be diluted and be lowered the temperature, and be effectively prevent hydrogen chloride gas in temperature-fall period and condensed drop
In dissolving.
Description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 1 is marked：101- heaters, 102- sampling pipes, 103- filters, 104- reaction tubes, 105- air compressor machines, 106- are dilute
Release device, 107- flowmeters, 108- hydrogen chloride detectors, 109- sampling pumps.
Specific embodiment
Below in conjunction with the accompanying drawings the present invention is further described with specific embodiment.It is pointed out that specific embodiment is only
For illustrating the technology contents of the present invention, it is easier to understand in order to reader, and does not represent embodiments of the present invention and only limit to
In this.
Specific embodiment one：As shown in figure 1, the online sulfur trioxide measuring system described in present embodiment includes heating
Device 101, sampling pipe 102, filter 103, reaction tube 104, air compressor machine 105, diluter 106, the detection of flowmeter 107, hydrogen chloride
Instrument 108 and sampling pump 109；
The filter 103, reaction tube 104, diluter 106, flowmeter 107, hydrogen chloride detector 108, sampling pump 109
Connecting tube connection is passed sequentially through, the port of export of sampling pipe 102 be connected with the arrival end of filter 103, the port of export of filter 103 and reacted
The arrival end of pipe 104 is connected by first paragraph connecting tube, and the port of export of reaction tube 104 is connected with the arrival end of diluter 106 by second segment
Adapter connection, the port of export of diluter 106 is connected with sampling pump 109 by the 3rd section of connecting tube, and flowmeter 107 and hydrogen chloride are detected
Instrument 108 is connected in turn in the between diluter 106 and sampling pump 109 the 3rd section of connecting tube；Heater 101 is wrapped in sampling pipe
102nd, around filter 103, reaction tube 104, air compressor machine 105 is connected with diluter 106.
Specific embodiment two：Sampling pipe 102 described in present embodiment is made using inert material polytetrafluoroethylene (PTFE), this
Sample can avoid being reacted with sulfuric acid vapor under high temperature.Other compositions and annexation are identical with specific embodiment one.
Specific embodiment three：Filter described in present embodiment is heat-resisting Guartz filter or ceramic filter,
The dust granules in the middle of sampling flue gas can be removed.Other compositions and annexation are identical with specific embodiment one or two.
Specific embodiment four：Reaction tube described in present embodiment is the reaction tube made by polytetrafluoroethylmaterial material,
Calcium chloride powder is placed in the middle of reaction tube, the two ends of reaction tube are detachably connected using cutting ferrule mode, are easy to reactive material
Change.Backstop made by the arrangement glass fiber high-temperature cotton of reaction tube two ends, for preventing reactant from skidding off in reaction tube.Other
Composition and annexation are identical with specific embodiment one or three.
Specific embodiment five：Heater described in present embodiment is spiral winding resistance heater, is provided with automatically
Temperature regulating device, can make the temperature in probe tube keep constant.Other compositions and annexation and the phase of specific embodiment one or four
Together.
Specific embodiment six：Diluter described in present embodiment is ejection-type diluter, can supply dilute for sampling air lift
Space is released, and sampling temperature degree is down to into normal temperature, prevent hydrogen chloride to be dissolved in condensing droplet.Other composition and annexation with
Specific embodiment one or five is identical.
Specific embodiment seven：Hydrogen chloride detector described in present embodiment is handheld portable hydrogen chloride detector,
Range is 0-10ppm, and certainty of measurement is 0.001ppm, can accurately measure the discharged hydrogen cloride concentration of reaction.Other composition and
Annexation is identical with specific embodiment one or six.
Specific embodiment eight：The sampling cigarette after the measurable dilution of gas glass rotameter described in present embodiment
Air volume, and sample gas thinner ratio is may be used to determine, the sampling pump described in present embodiment is without oil type vavuum pump, using the teaching of the invention it is possible to provide gas
The detached power of sampler body.Other compositions and annexation are identical with specific embodiment one or seven.
Specific embodiment nine：It is a kind of based on the online of system described in any embodiment in specific embodiment 1 to 8
SO3Measuring method, specifically includes following steps：
Step one：The calcium chloride powder of enough quality is weighed using high Accuracy Electronic Balance, and calcium chloride powder is rapid
Load reaction tube 104, prevent calcium chloride powder from absorbing water in atmosphere.Arrange what glass fiber high-temperature cotton made at reaction tube two ends
Backstop, prevents reactive material from skidding off in reaction tube.
Step 2：Start sampling pump 109, and sampling flow is adjusted according to flowmeter 107.Then air compressor machine 105 is started, if
Press pressure is empty, after treating stable operation, the heater of heater 101, and temperature is set for 200 DEG C -300 DEG C；
Step 3：After treating temperature stabilization, and sampling pipe 102 is inserted in flue thieff hatch.Start hydrogen chloride detector
108, continuous monitoring sampling.After treating registration stably, sampling pipe 102 is extracted out, stop heater 101 and heat.Package unit is cooled down
Afterwards, sampling pump 109 and air compressor machine 105 are closed；
Step 4：The stoichiometry system of registration, sample gas thinner ratio, sulfuric acid vapor and hydrogen chloride according to hydrogen chloride detector
The ratio of number determines the concentration of sulfur trioxide in flue gas determining the concentration of sulfuric acid vapor；
Step 5：Dismounting filter 103, is rinsed using deionized water to it, and cleaning solution is poured in beaker.Using ion
Sulfate ion concentration in chromatograph measurement beaker.
, wherein it is desired to be understood by, in measurement filter 103 sulfate ion concentration be in order to determine because sulfuric acid vapor with
Error caused by flue gas neutral and alkali dust granules substance reaction institute, so as to further improve the accuracy of measurement.
Claims (9)
1. a kind of online SO3Measuring system, it is characterised in that it includes：Heater (101), sampling pipe (102), filter
(103), reaction tube (104), air compressor machine (105), diluter (106), flowmeter (107), hydrogen chloride detector (108) and sampling
Pump (109)；
The filter (103), reaction tube (104), diluter (106), flowmeter (107), hydrogen chloride detector (108), adopt
Sample pump (109) passes sequentially through connecting tube connection, and sampling pipe (102) port of export is connected with filter (103) arrival end, filter
(103) port of export is connected with reaction tube (104) arrival end by first paragraph connecting tube, reaction tube (104) port of export and diluter
(106) arrival end is connected by second segment connecting tube, and diluter (106) port of export is connected with sampling pump (109) by the 3rd section
Pipe connects, and flowmeter (107) and hydrogen chloride detector (108) are connected in turn between diluter (106) and sampling pump (109)
In 3rd section of connecting tube；Heater (101) is wrapped in around sampling pipe (102), filter (103), reaction tube (104), pneumatics
Machine (105) is connected with diluter (106).
2. online SO according to claim 13Measuring system, it is characterised in that：The sampling pipe (102) is by polytetrafluoro
The sampling pipe that ethene makes.
3. online SO according to claim 1 and 23Measuring system, it is characterised in that：The filter (103) is quartzy mistake
Filter or ceramic filter.
4. online SO according to claim 33Measuring system, it is characterised in that：The reaction tube (104) is by polytetrafluoro
The reaction tube that ethene makes, reaction tube (104) is imported and exported two ends and is detachably connected using cutting ferrule mode, and reaction tube (104) two
End arrangement backstop by made by glass fiber high-temperature cotton.
5. the online SO according to claim 1 or 43Measuring system, it is characterised in that：The heater (101) is adjustable
Temperature, thermostatic type spiral winding resistance heater.
6. online SO according to claim 53Measuring system, it is characterised in that：The diluter (106) is dilute for ejection-type
Release device.
7. the online SO according to claim 1 or 63Measuring system, it is characterised in that：Hydrogen chloride detector (108) is hand-held
Portable hydrogen chloride detector, precision is 0.001ppm, and range is 0-10ppm.
8. online SO according to claim 73Measuring system, it is characterised in that：The flowmeter (107) and sampling pump
(109) it is respectively gas glass rotameter and without oil type vavuum pump.
9. a kind of online SO based on system described in any claim in claim 1 to 83Measuring method, it is characterised in that institute
The method of stating is comprised the following steps：
Step one：The calcium chloride powder of enough quality is weighed using high Accuracy Electronic Balance, and calcium chloride powder is quickly charged with
Reaction tube (104), prevents calcium chloride powder from absorbing water in atmosphere, in reaction tube (104) two ends arrangement glass fiber high-temperature cotton gear
Net, prevents reactive material from skidding off in reaction tube (104)；
Step 2：Start sampling pump (109), and sampling flow adjusted according to flowmeter (107), then start air compressor machine (105),
Air compressor machine (105) pressure is set, after treating stable operation, the heater of heater (101), and temperature is set for 200
℃-300℃；
Step 3：After treating temperature stabilization, sampling pipe (102) is inserted in flue thieff hatch, start hydrogen chloride detector
(108), continuous monitoring sampling, after treating registration stably, extracts sampling pipe (102) out, stops heater (101) heating, the whole series dress
After putting cooling, sampling pump (109) and air compressor machine (105) are closed；
Step 4：The stoichiometry of registration, sample gas thinner ratio, sulfuric acid vapor and hydrogen chloride according to hydrogen chloride detector (108)
The ratio of coefficient determines the concentration of sulfur trioxide in flue gas determining the concentration of sulfuric acid vapor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611183943.8A CN106596198A (en) | 2016-12-20 | 2016-12-20 | Online SO3 measuring system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611183943.8A CN106596198A (en) | 2016-12-20 | 2016-12-20 | Online SO3 measuring system and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106596198A true CN106596198A (en) | 2017-04-26 |
Family
ID=58599836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611183943.8A Pending CN106596198A (en) | 2016-12-20 | 2016-12-20 | Online SO3 measuring system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106596198A (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107421789A (en) * | 2017-07-04 | 2017-12-01 | 东方电气集团东方锅炉股份有限公司 | Sulfur trioxide in flue gas sampling gun |
| CN108303293A (en) * | 2018-02-09 | 2018-07-20 | 华能国际电力股份有限公司 | The sampling of sulfur trioxide and detecting system and method in a kind of fire coal boiler fume |
| CN108786426A (en) * | 2018-08-17 | 2018-11-13 | 浙江大学 | A kind of semidry method removes the pilot-plant of fluorine chlorine in coal-fired flue-gas |
| CN109896505A (en) * | 2019-04-17 | 2019-06-18 | 华能国际电力股份有限公司 | A kind of stable device and method for generating sulfur trioxide gas |
| CN111323415A (en) * | 2020-04-16 | 2020-06-23 | 中科易朔(厦门)防火技术服务有限公司 | Testing device and testing method for detecting smoke toxicity generated by high polymer material |
| CN111487094A (en) * | 2020-05-25 | 2020-08-04 | 中煤科工集团重庆研究院有限公司 | SO in the exhaust gas3Detection preprocessing system and using method thereof |
| CN112414791A (en) * | 2020-09-29 | 2021-02-26 | 清华大学 | Device and method for collecting trace sulfur trioxide in industrial gas |
| CN112964609A (en) * | 2021-01-25 | 2021-06-15 | 国网冀北电力有限公司电力科学研究院 | On-site detection system for smoke pollutants of stove |
| CN114636786A (en) * | 2021-11-19 | 2022-06-17 | 清华大学 | Device and method for detecting sulfur trioxide or sulfuric acid mist in flue gas |
| CN114739877A (en) * | 2022-03-29 | 2022-07-12 | 安徽理工大学 | System and method for detecting concentration of free silica in coal dust |
| US11940376B2 (en) | 2022-03-29 | 2024-03-26 | Anhui University of Science and Technology | System and method for detecting concentration of free SiO2 in coal dust |
| CN114636786B (en) * | 2021-11-19 | 2024-04-19 | 清华大学 | Device and method for detecting sulfur trioxide or sulfuric acid mist in flue gas |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4115518A (en) * | 1974-11-06 | 1978-09-19 | Unibra | Gas desulphurization |
| JPS54110169A (en) * | 1978-02-17 | 1979-08-29 | Ishikawajima Harima Heavy Ind Co Ltd | Treating method for dust contained in exhaust gas |
| JPS59197859A (en) * | 1983-04-25 | 1984-11-09 | Mitsubishi Heavy Ind Ltd | Continuous measuring method of concentration of sulfur trioxide in waste gas |
| JPS61171526A (en) * | 1985-01-25 | 1986-08-02 | Mitsubishi Heavy Ind Ltd | Treatment of exhaust gas |
| CN1869706A (en) * | 2006-06-08 | 2006-11-29 | 聚光科技（杭州）有限公司 | Method for continuous monitoring smoke discharge and its device |
| CN102419292A (en) * | 2011-08-10 | 2012-04-18 | 攀钢集团有限公司 | System for determining SO3 in flue gas |
| CN103439152A (en) * | 2013-08-26 | 2013-12-11 | 上海明华电力技术工程有限公司 | Polymorphic sampling system and method for sulfur trioxide in exhaust of stationary pollution source |
| CN204241279U (en) * | 2014-10-08 | 2015-04-01 | 福建龙净环保股份有限公司 | A kind of sulfur trioxide in flue gas sampling apparatus |
| CN204964281U (en) * | 2015-09-23 | 2016-01-13 | 汇众翔环保科技河北有限公司 | Flue gas analysis's pretreatment systems |
| CN206057037U (en) * | 2016-09-06 | 2017-03-29 | 山东能工低碳科技有限公司 | A kind of SO3The device of on-line checking |
-
2016
- 2016-12-20 CN CN201611183943.8A patent/CN106596198A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4115518A (en) * | 1974-11-06 | 1978-09-19 | Unibra | Gas desulphurization |
| JPS54110169A (en) * | 1978-02-17 | 1979-08-29 | Ishikawajima Harima Heavy Ind Co Ltd | Treating method for dust contained in exhaust gas |
| JPS59197859A (en) * | 1983-04-25 | 1984-11-09 | Mitsubishi Heavy Ind Ltd | Continuous measuring method of concentration of sulfur trioxide in waste gas |
| JPS61171526A (en) * | 1985-01-25 | 1986-08-02 | Mitsubishi Heavy Ind Ltd | Treatment of exhaust gas |
| CN1869706A (en) * | 2006-06-08 | 2006-11-29 | 聚光科技（杭州）有限公司 | Method for continuous monitoring smoke discharge and its device |
| CN102419292A (en) * | 2011-08-10 | 2012-04-18 | 攀钢集团有限公司 | System for determining SO3 in flue gas |
| CN103439152A (en) * | 2013-08-26 | 2013-12-11 | 上海明华电力技术工程有限公司 | Polymorphic sampling system and method for sulfur trioxide in exhaust of stationary pollution source |
| CN204241279U (en) * | 2014-10-08 | 2015-04-01 | 福建龙净环保股份有限公司 | A kind of sulfur trioxide in flue gas sampling apparatus |
| CN204964281U (en) * | 2015-09-23 | 2016-01-13 | 汇众翔环保科技河北有限公司 | Flue gas analysis's pretreatment systems |
| CN206057037U (en) * | 2016-09-06 | 2017-03-29 | 山东能工低碳科技有限公司 | A kind of SO3The device of on-line checking |
Non-Patent Citations (1)
| Title |
|---|
| EMIL VAINIO ET.AL.: "Experimental Evaluation and Field Application of a Salt Method for SO3 Measurement in Flue Gases", 《ENERGY & FUELS》 * |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107421789A (en) * | 2017-07-04 | 2017-12-01 | 东方电气集团东方锅炉股份有限公司 | Sulfur trioxide in flue gas sampling gun |
| CN108303293A (en) * | 2018-02-09 | 2018-07-20 | 华能国际电力股份有限公司 | The sampling of sulfur trioxide and detecting system and method in a kind of fire coal boiler fume |
| CN108786426A (en) * | 2018-08-17 | 2018-11-13 | 浙江大学 | A kind of semidry method removes the pilot-plant of fluorine chlorine in coal-fired flue-gas |
| CN109896505A (en) * | 2019-04-17 | 2019-06-18 | 华能国际电力股份有限公司 | A kind of stable device and method for generating sulfur trioxide gas |
| CN109896505B (en) * | 2019-04-17 | 2023-11-03 | 华能国际电力股份有限公司 | Device and method for stably generating sulfur trioxide gas |
| CN111323415A (en) * | 2020-04-16 | 2020-06-23 | 中科易朔(厦门)防火技术服务有限公司 | Testing device and testing method for detecting smoke toxicity generated by high polymer material |
| CN111487094B (en) * | 2020-05-25 | 2023-05-02 | 中煤科工集团重庆研究院有限公司 | SO in the flue gas is discharged 3 Detection pretreatment system and use method thereof |
| CN111487094A (en) * | 2020-05-25 | 2020-08-04 | 中煤科工集团重庆研究院有限公司 | SO in the exhaust gas3Detection preprocessing system and using method thereof |
| CN112414791A (en) * | 2020-09-29 | 2021-02-26 | 清华大学 | Device and method for collecting trace sulfur trioxide in industrial gas |
| CN112964609A (en) * | 2021-01-25 | 2021-06-15 | 国网冀北电力有限公司电力科学研究院 | On-site detection system for smoke pollutants of stove |
| CN114636786A (en) * | 2021-11-19 | 2022-06-17 | 清华大学 | Device and method for detecting sulfur trioxide or sulfuric acid mist in flue gas |
| CN114636786B (en) * | 2021-11-19 | 2024-04-19 | 清华大学 | Device and method for detecting sulfur trioxide or sulfuric acid mist in flue gas |
| CN114739877A (en) * | 2022-03-29 | 2022-07-12 | 安徽理工大学 | System and method for detecting concentration of free silica in coal dust |
| CN114739877B (en) * | 2022-03-29 | 2022-11-15 | 安徽理工大学 | System and method for detecting concentration of free silica in coal dust |
| US11940376B2 (en) | 2022-03-29 | 2024-03-26 | Anhui University of Science and Technology | System and method for detecting concentration of free SiO2 in coal dust |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106596198A (en) | Online SO3 measuring system and method | |
| CN106053375B (en) | A kind of coal-fired plant flue gas pollutant minimum discharge on-line monitoring system | |
| CN108303293A (en) | The sampling of sulfur trioxide and detecting system and method in a kind of fire coal boiler fume | |
| CN106501443A (en) | For testing the test system of sulfur trioxide concentration and its condenser in flue gas | |
| CN108507918B (en) | Device and method for on-line monitoring concentration of ultralow-emission flue gas particles | |
| CN103471878A (en) | Sampling and collecting system of SO3 in wet method desulphurization system tail flue gas | |
| CN106353457B (en) | A kind of detection flue gas SO absorbed based on salt3Method and system | |
| CN106248442B (en) | SO in a kind of detection flue gas3Method | |
| CN105181614B (en) | Sulfur trioxide analytical instrument and method | |
| CN202853655U (en) | Flue gas monitoring system | |
| CN207730510U (en) | A kind of harvester for sulfur trioxide in flue gas | |
| CN104931303A (en) | Sampling device and sampling method for detecting ammonia escaping concentration of smoke denitration | |
| CN106289884B (en) | A kind of SO3The method of on-line checking | |
| CN103207250B (en) | Method for testing ammonia escape of flue gas denitrification system | |
| CN207866584U (en) | The sampling system of sulfur trioxide in a kind of fire coal boiler fume | |
| CN104226300A (en) | SCR (Selective Catalytic Reduction) catalyst and preparation method thereof | |
| CN207600810U (en) | A kind of multidraw mechanism for CEMS systems | |
| CN207248580U (en) | One kind is based on flue-gas temperature and thermostat water bath coolant controlled SO3Sampling system | |
| CN206270239U (en) | A kind of uv analyzer of nitrogen oxides in effluent content measurement | |
| CN208206808U (en) | A kind of measurement power plant's denitrating catalyst is to the device of oxidation rate of sulfur dioxide | |
| CN210123399U (en) | Sulfur trioxide online analysis system | |
| CN202693386U (en) | Sampling device used in process of measuring SO3 in smoke | |
| CN104122374A (en) | Method and device for checking sulfur trioxide sampling test system | |
| CN208736793U (en) | A kind of ammonia in flue gas gas collecting test device | |
| CN206057037U (en) | A kind of SO3The device of on-line checking |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170426 |