CN206020120U - SO in a kind of detection flue gas3Reaction collection device and system - Google Patents
SO in a kind of detection flue gas3Reaction collection device and system Download PDFInfo
- Publication number
- CN206020120U CN206020120U CN201621039522.3U CN201621039522U CN206020120U CN 206020120 U CN206020120 U CN 206020120U CN 201621039522 U CN201621039522 U CN 201621039522U CN 206020120 U CN206020120 U CN 206020120U
- Authority
- CN
- China
- Prior art keywords
- flue gas
- temperature
- reaction
- salt
- collection
- 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.)
- Expired - Fee Related
Links
- 238000001514 detection method Methods 0.000 title claims abstract description 40
- 239000003546 flue gas Substances 0.000 claims abstract description 115
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 88
- 150000003839 salts Chemical class 0.000 claims abstract description 68
- 238000010521 absorption reaction Methods 0.000 claims abstract description 61
- 239000000779 smoke Substances 0.000 claims abstract description 48
- 238000006243 chemical reaction Methods 0.000 claims abstract description 41
- 238000000034 method Methods 0.000 claims abstract description 33
- 238000009833 condensation Methods 0.000 claims abstract description 19
- 230000005494 condensation Effects 0.000 claims abstract description 16
- 239000003517 fume Substances 0.000 claims abstract description 16
- 239000007789 gas Substances 0.000 claims description 13
- 235000019504 cigarettes Nutrition 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 description 46
- 238000005070 sampling Methods 0.000 description 26
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 24
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 24
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 24
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 239000000523 sample Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 3
- -1 chloranilic acid ion Chemical class 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
- 239000010962 carbon steel Substances 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004949 mass spectrometry Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000001103 potassium chloride Substances 0.000 description 2
- 235000011164 potassium chloride Nutrition 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 210000002268 wool Anatomy 0.000 description 2
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 description 1
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 1
- WDIHJSXYQDMJHN-UHFFFAOYSA-L barium chloride Chemical compound [Cl-].[Cl-].[Ba+2] WDIHJSXYQDMJHN-UHFFFAOYSA-L 0.000 description 1
- 229910001626 barium chloride Inorganic materials 0.000 description 1
- 159000000009 barium salts Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- IPPWILKGXFOXHO-UHFFFAOYSA-N chloranilic acid Chemical compound OC1=C(Cl)C(=O)C(O)=C(Cl)C1=O IPPWILKGXFOXHO-UHFFFAOYSA-N 0.000 description 1
- 238000005660 chlorination reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000003189 isokinetic effect Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000001117 sulphuric acid Substances 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 230000005619 thermoelectricity Effects 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses SO in a kind of detection flue gas3Reaction collection device and system, reaction collection device includes smoke collecting part, smoke power part, temperature-controlled member, reaction part, control unit and fume collection part, smoke collecting part, reaction part and fume collection part are sequentially connected, reaction part is blank part in parallel and salt absorption piece, smoke power part makes smoke collecting part gather flue gas, and smoke power part can provide power for gathering the conveying of flue gas, the temperature of the flue gas of temperature-controlled member control collection, the temperature of temperature and salt absorption piece that flue gas is delivered to salt absorption piece process is above SO3Adiabatic condensation temperature, holds villaumite in salt absorption piece, control unit control flue gas flows through blank part or salt absorption piece；Control unit is switch module or three-way valve；The air inlet diameter of smoke collecting part is 2mm 16mm.System includes reacting collection device and HCl detection parts.
Description
Technical field
This utility model is related to the detection means of coal-fired flue-gas composition, SO in more particularly to a kind of detection flue gas3Reaction
Collection device and system.
Background technology
, based on coal, in coal combustion process, element sulphur major part therein is with SO for the energy resource structure of China2Form is present
In flue gas, fraction SO2It is converted into SO3, generally, the about SO of 1-2% in burner hearth2It is oxidized to SO3.This
Outward, with thermal power plant's Air Pollutant Emission new standard《GB-13223-2011》Promulgation, flue gas SCR denitration technique is in thermoelectricity
Factory is widely applied.Commercial SCR catalyst can promote SO2Oxidation, improve SO in flue gas3Generation and discharge, at present
Coal-fired SO2Environmental capacity has reached the level of minimum discharge, SO3Environmental capacity become current focus of attention.
SO3It is a kind of serious pollution gas of harm, its harm is mainly reflected in terms of following three：(1), work as flue gas
In SO3When content is crossed more than 10ppm, will cause severe contamination, the SO in flue gas to atmospheric environment3Can be combined with vapor
Generate and its small sulphuric acid droplet, reduce the transparency of flue gas, cause the generation of " Lan Yu " phenomenon.(2), SO in flue gas3Contain
The increase of amount can increase substantially the acid dew point of flue gas, cause corrosion phenomenon to steam generator system.(3), for SCR denitration technique,
SO3Can also be with excessive NH3Reaction generates ammonium nitrate and nitric acid hydrogen ammonium, and the micropore on blocking catalyst surface shortens making for catalyst
With the life-span, harmful effect is produced to SCR reactions.SO3Detection be to realize SO3The important prerequisite of control supervision, it is therefore desirable to high-precision
The SO of degree3Testing equipment.
Current SO3The method of measurement is divided into two class of sampling analysis method and on_line detection method.Sampling analysis method mainly includes controlling
Condensation method processed, spiral tube method and isopropanol absorption process.Control condensation method and spiral tube method be all by flue gas at a certain temperature
Condensed, made the SO in flue gas3Condense in catcher, then deionized water rinses catcher, by detecting in water
Sulfate ion concentration, obtains SO in flue gas3Concentration；It is to realize SO by isopropanol that isopropanol absorbs rule3Absorption, most
Concentration that water detect sulfate ion is dissolved in afterwards.Control condensation method, spiral tube method and isopropanol absorption process cannot realize SO3Height
Measure of precision, and smoke sampling be filtered into pyroprocess, and SO3Condensation and absorption be chilling process, therefore exist
Condensation segment from high temperature to low temperature, SO during being somebody's turn to do3Can deposit in tube wall, and due to SO during low temperature absorption3Turned by gaseous state
Drop or aerosol is turned to, causes to absorb not exclusively, these are all had adverse effect on to the precision for measuring.
Multiple SO are disclosed and have been developed in this area3Measuring technology, the patent of Application No. 201310376879.5
Disclose the on-line measuring device of sulfur trioxide and method in a kind of flue gas, device include smoke collecting unit, gas-liquid separator,
Vapor detection unit, the first NaOH solution tank NaOH, Liquid Detection unit and digital control unit.The patent achieves SO in flue gas3?
Line measure, to flue gas in SO3Sampled, and analyzed SO3Content.The method condensation at low temperature realizes SO3Separation,
Then with the SO after isopropanol or water absorption and separation3And precipitation is formed with barium salt, liquid phase is carried out finally by spectrophotometer
Detection obtains SO3Content, the method using condensation at low temperature the method for sampling, SO in sampling process3Deposition and absorb not exclusively
Problem, affect certainty of measurement, and more complicated, be not easy to Site Detection.
Patent 201410125511.6 discloses a kind of Detection ＆ Controling method of sulfur trioxide gas bulk concentration：Using light source
Light beam is sent, the one end for passing the beam through reaction cavity reaches the other end.By measuring the resistance value size of photoconductive resistance
The concentration of sulfur trioxide gas in detection reaction cavity.The method is simple to operate, but be subject to flue gas in flying dust, vapor and its
The impact of his component, it is difficult to accurately measure SO3Content.
The patent of Application No. 201510562239.2 provides a kind of sulfur trioxide analytical tool and method, by sampling
Rifle gathers flue gas, then mixes in Drexel bottle with aqueous isopropanol, and sulfur trioxide is absorbed as sulfate ion；By sample liquid
Pump to reactor, chemical reaction occurs with chloranilic acid barium, generate barium sulfate and discharge the chloranilic acid ion of equivalent；Profit
With the chloranilic acid ion concentration in spectrophotometer measurement reactant liquor, so as to obtain the sulfate ion concentration in sample liquid,
Calculate the sulfur trioxide concentration in flue gas.The method still falls within isopropanol absorption process, and instrument is various, complex operation, and nothing
Method avoids the shortcoming that low temperature absorption is brought.
Application number 201520621768.0 discloses a kind of portable sulfur trioxide chemical absorbing automatic sampling apparatus, including
Probe tube, filter, chemical absorption arrangement, control device.The method is using absorbing liquid to the SO in sampling flue gas3Inhaled
Receive, due to SO under low temperature3For sulfuric acid mist, sulfuric acid droplets state, there are problems that absorbing incomplete, impact certainty of measurement.
Utility model content
For overcoming the defect of prior art, this utility model to provide SO in a kind of detection flue gas3Reaction collection device
And system, have the advantages that certainty of measurement high, stable, do not disturbed by anthropic factor.
For achieving the above object, the technical solution of the utility model is：
SO in a kind of detection flue gas3Reaction collection device, including smoke collecting part, smoke power part, temperature control portion
Part, reaction part, control unit and fume collection part, the smoke collecting part, reaction part and fume collection part according to
Secondary connection, the reaction part is blank part in parallel and salt absorption piece, and the smoke power part adopts the flue gas
Collection part collection flue gas, and the smoke power part can provide power for gathering the conveying of flue gas, the temperature-controlled member control
The temperature of temperature and salt absorption piece that the temperature of the flue gas of system collection, flue gas are delivered to salt absorption piece process is above SO3
Adiabatic condensation temperature, holds villaumite in the salt absorption piece, and the control unit control flue gas flows through blank part or salt absorption portion
Part.
SO in a kind of detection flue gas3Reaction collection device, including salt absorb branch road, blank branch road, smoke power part,
Temperature-controlled member, control unit and fume collection part, the salt are absorbed branch road and are connected with fume collection part, the blank branch road
Branch circuit parallel connection is absorbed with salt, the salt absorbs branch road includes the first smoke collecting part and salt absorption piece, first flue gas
The flue gas of acquisition component collection enters fume collection part through salt absorption piece, and the blank branch road includes the second smoke collecting portion
Part and blank part, the second smoke collecting part enter fume collection part, the smoke power part through blank part
The smoke collecting part collection flue gas is made, and the smoke power part can provide power for gathering the conveying of flue gas, institute
State the temperature of the flue gas of temperature-controlled member control collection, flue gas and be delivered to the temperature of salt absorption piece process and the temperature of salt absorption piece
Degree is above SO3Adiabatic condensation temperature, holds villaumite in the salt absorption piece, and the control unit control flue gas flows through blank part
Or salt absorption piece.
Required flue gas only need to be acquired, be collected by reaction collection device of the present utility model at the scene, and at energy collection
Manage a large amount of flue gas specimen, the flue gas of collection delivered to fixed detection site then and is detected, gather and carry simple and convenient,
Without the need for in-site installation complex detection instrument, reduce testing cost, applied widely.
Wherein, the circuit temperature-controlling that temperature-controlled member can be located to blank part is paramount in SO3Adiabatic condensation temperature, it is also possible to not right
The branch road that blank part is located carries out temperature control.
Preferably, be can be by cigarette for the smoke collecting part, the first smoke collecting part, the second smoke collecting part
In road, flue gas is delivered to the conduit component in this utility model device.Such as sampling head, sampling tube etc..
Preferably, the smoke power part is gas in flue gas in flue to be sucked into this utility model device
Power part.Air pump of sampling pump or controllable gas flow of gas flow etc. for example can control.
Preferably, the temperature-controlled member be according to detection temperature control heater by temperature control to design temperature with
On.
It is further preferred that the design temperature is 200 DEG C.
It is further preferred that the design temperature is 260 DEG C.
Wherein, the blank part is the part for not holding villaumite.As do not held the salt absorption piece of villaumite, not having
Hold the connecting tube of villaumite or do not hold container of villaumite etc..
The fume collection part is to be collected the part for holding to flue gas.Such as collect airbag, gas collecting bottle, gas to receive
Collection bottle, Soviet Union's agate tank etc..
Preferably, the control unit is switch module or three-way valve.
It is further preferred that the valve member includes switching A and switch B, switch A and be arranged on salt absorption piece place
On branch road, switch B and be arranged on the branch road that blank part is located.
Preferably, it is provided with salt in filter element, or the reaction part between smoke collecting part and reaction part to inhale
Filter element is equipped with the upstream of receiving apparatus and the blank part place branch road.
Preferably, the first filter element is set between the first smoke collecting part and salt absorption piece；The blank
The downstream of the second smoke collecting part on branch road arranges the second filter element.
Wherein, filter element, the first filter element and the second filter element can remove the flying dust in flue gas.
It is further preferred that the material that the filter element of the filter element is adopted is for sintering metal, pottery, silica wool or fibre
Dimension.
Preferably, the smoke collecting part and salt absorption piece are connected by connecting tube, and the temperature-controlled member control connects
The temperature of adapter is higher than SO3Adiabatic condensation temperature；The blank part is the second connecting tube.
It is further preferred that the salt absorption piece is removably mounted in connecting tube.
It is further preferred that the salt absorption piece is cancellated hollow tubular device for both sides.
Preferably, the smoke collecting part is carbon steel pipe, stainless steel tube, polyfluortetraethylene pipe or polyfluoroprene pipe.
Preferably, the air inlet diameter of the smoke collecting part is 2mm-16mm.
Preferably, the smoke power part is after fume collection part.
SO in a kind of detection flue gas3System, including above-mentioned reaction collection device and HCl detection parts, the HCl detections
Part is used for the content for detecting the HCl in the flue gas that collects in reaction collection device.
Preferably, the HCl detection parts are the device or component of the content that can detect HCl.
It is further preferred that HCl detection parts are electrochemical process detection means, on-line mass spectroscopy detection means or infrared detection
Device.
The beneficial effects of the utility model are：
1. this utility model is by flue gas to SO3On adiabatic condensation temperature, it is to avoid SO3Condense, afterwards with chloride to SO3
Carry out absorbing reaction and produce hydrogen chloride, it is to avoid SO in control condensation method and isopropanol absorption process3Condensation and absorption in tube wall
Not exclusively cause the drawbacks of measuring inaccurate.
2. this utility model has the advantages that simple to operate, high precision, manual operation error are little, and application prospect is very wide
Wealthy.
Description of the drawings
Structural representations of the Fig. 1 for this utility model embodiment 1；
Structural representations of the Fig. 2 for salt absorption plant；
Structural representations of the Fig. 3 for this utility model embodiment 6；
Wherein, 1. sampling head, 2. connecting tube, 3. heater, 4. defecator, 5. valve A, 6. valve B, 7. salt absorb
Device, 8. attemperating unit, 9. bridge piece, 10. hydrogen chloride collection device, 11. sampling pumps, 12. second connecting tubes, 13. tubulars
Device, 14. network structure, 15. hooks, 16. second sampling heads, 17. second defecators.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment the utility model is described in further detail.
Embodiment 1
As shown in figure 1, SO in a kind of detection flue gas3Reaction collection device, including sampling head 1, connecting tube 2, heating dress
3, defecator 4, valve A5, valve B6, salt absorption plant 7, attemperating unit 8, hydrogen chloride detection means 10 and sampling pump 11 is put,
Sampling head 1 is connected to one end of connecting tube 2, and for carrying out isokinetic sampling to flue gas, heater 3 is arranged on the outside of connecting tube 2,
For heating to flue gas, defecator 4 is arranged at the front portion of connecting tube 2, and for removing the flying dust in flue gas, salt absorbs dress
7 rear portions for being arranged at connecting tube 2 are put, for absorbing the SO in flue gas3, the other end of connecting tube 2 is by bridge piece 9 and chlorination
Hydrogen collection device 10 connects, and the bridge piece 9 is provided with valve B6, and hydrogen chloride collection device 10 is used for collecting flue gas, temperature control
Device 8 is located at heater end, and for being adjusted to heating-up temperature and controlling, sampling pump 11 is located at hydrogen chloride collection device
10 downstreams, for controlling sampling flow.
Second connecting tube 12 is set after defecator 4, and the second connecting tube 12 is in parallel with salt absorption plant 7, the second connecting tube
12 import is arranged in the connecting tube 2 between defecator 4 and salt absorption plant 7, and the second connecting tube 12 is provided with valve A5,
Second connecting tube, 12 rear end is connected with hydrogen chloride collection device 10.
1 a diameter of 7mm of sampling head (flue gas flow rate is 15m/s).
Connecting tube 2 is carbon steel pipe.
Filter element of the defecator 4 for sintering metal.Filter element is Round Porous column structure, and filter element can be matched somebody with somebody with connecting tube 2 just
Close.
As shown in Fig. 2 salt absorption plant 7 is the hollow tubular device 13 that both sides are network structure 14, tubular device 13
Can coordinate with connecting tube 2 just, be provided with sealing ring on the drum outer wall of salt absorption plant 7, and the external diameter of sealing ring be slightly larger than
Connection bore, makes salt absorption plant 7 be arranged in connecting tube 2 just, while ensureing salt absorption plant 7 and connecting tube 2
Seamless installation, the side network structure 14 of tubular device 13 is provided with hook 15, convenient dismounting and installs salt absorption plant 7.
Salt in salt absorption plant 7 is sodium chloride.
Hydrogen chloride collection device 10 is Soviet Union's agate tank.
(simulated flue gas, simulated flue gas temperature are 300 DEG C to flue gas, SO in simulated flue gas3Content be 42.0ppm) by adopting
Sample head 1 enters connecting tube 2, and 2 outer arrangement heater 3 of connecting tube is to flue gas to 240 DEG C, it is to avoid SO3Condensation；Subsequently borrow
Defecator 4 is helped to remove the flying dust in flue gas, flue gas is divided into two-way afterwards, can switch over by valve, lead up to valve
A5 (now valve B6 is closed), is directly entered Soviet Union's agate tank by the second connecting tube 12, collects the flue gas not contacted with villaumite, collected
Will be closed after closed for Soviet Union's agate tank removing into after, and another Soviet Union's agate tank will be installed, now valve B6 is opened, and valve A5 is closed, cigarette
Gas enters salt absorption plant 7, and another collection airbag collection is contacted with villaumite, reacted flue gas, and respectively two are revived in agate tanks
Flue gas detected (using electrochemical process detection detection), obtain the initial concentration of original HCl and reacted cigarette in flue gas
The concentration of HCl in gas, in reacted flue gas, the concentration of HCl deducts the initial concentration of original HCl and obtains the HCl of actual output
Concentration 85.0ppm, be calculated SO in flue gas3Content 42.5ppm, the sampled pump 11 of last flue gas discharges.
Embodiment 2
The present embodiment is same as Example 1, and difference is：
1 a diameter of 12mm of sampling head (flue gas flow rate is 5m/s).
Connecting tube 2 is stainless steel tube.
Filter element of the defecator 4 for pottery.
Salt in salt absorption plant 7 is potassium chloride.
Hydrogen chloride collection device 10 is gas collecting bottle.
2 outer arrangement heater 3 of connecting tube is to flue gas to 260 DEG C.
Detected using on-line mass spectroscopy.
Flue gas adopts SO3Simulated flue gas of the content for 70.4ppm.
The reaction that detection is obtained generates concentration 139.6ppm of hydrogen chloride, obtains SO in flue gas3Concentration 69.8ppm.
Embodiment 3
The present embodiment is same as Example 1, and difference is：
1 a diameter of 9mm of sampling head (flue gas flow rate is 10m/s).
Connecting tube 2 is polyfluortetraethylene pipe.
Filter element of the defecator 4 for silica wool.
Salt in salt absorption plant 7 is copper chloride.
Hydrogen chloride collection device 10 is collection and confinement of gases bottle.
2 outer arrangement heater 3 of connecting tube is to flue gas to 300 DEG C.
Using infrared detection.
Flue gas adopts SO3Simulated flue gas of the content for 13.4ppm.
The reaction that detection is obtained generates concentration 27.6ppm of hydrogen chloride, obtains SO in flue gas3Content 13.8ppm.
Embodiment 4
The present embodiment is same as Example 1, and difference is：
1 a diameter of 8mm of sampling head (flue gas flow rate is 12m/s).
Connecting tube 2 is polyfluoroprene pipe.
Filter element of the defecator 4 for fiber.
Salt in salt absorption plant 7 is the mixture of calcium chloride and potassium chloride.
2 outer arrangement heater 3 of connecting tube is to flue gas to 400 DEG C.
Flue gas adopts SO3Simulated flue gas of the content for 10.4ppm.
The reaction that detection is obtained generates concentration 20.2ppm of hydrogen chloride, obtains SO in flue gas3Content 10.1ppm.
Embodiment 5
The present embodiment is same as Example 1, and difference is：
1 a diameter of 6mm of sampling head (flue gas flow rate is 15m/s).
Connecting tube 2 is polyfluortetraethylene pipe.
Filter element of the defecator 4 for pottery.
Salt in salt absorption plant 7 is the mixture of barium chloride and sodium chloride.
2 outer arrangement heater 3 of connecting tube is to flue gas to 260 DEG C.
Flue gas adopts SO3Simulated flue gas of the content for 27.3ppm.
The reaction that detection is obtained generates concentration 53.4ppm of hydrogen chloride, obtains SO in flue gas3Content 26.7ppm.
Embodiment 6
The present embodiment is same as Example 1, and difference is：As shown in figure 3, the import connection the of the second connecting tube 12
Two sampling heads 16, are provided with the second defecator 17 in the second connecting tube, the specification phase of the second defecator 17 and defecator 4
With.
Although the above-mentioned accompanying drawing that combines is described to specific embodiment of the present utility model, not to utility model
The restriction of protection domain, one of ordinary skill in the art should be understood that on the basis of the technical solution of the utility model, this area
Various modifications or deform still in protection domain of the present utility model that technical staff is made by need not paying creative work
Interior.
Claims (7)
1. one kind detects SO in flue gas3Reaction collection device, it is characterized in that, including smoke collecting part, smoke power part,
Temperature-controlled member, reaction part, control unit and fume collection part, the smoke collecting part, reaction part and fume collection
Part is sequentially connected, and the reaction part is blank part in parallel and salt absorption piece, and the smoke power part makes described
Smoke collecting part gathers flue gas, and the smoke power part can provide power for gathering the conveying of flue gas, the temperature control
The temperature of the flue gas of component controls collection, flue gas are delivered to the temperature of salt absorption piece process and the temperature of salt absorption piece is high
In SO3Adiabatic condensation temperature, holds villaumite in the salt absorption piece, and the control unit control flue gas flows through blank part or salt is inhaled
Receive part；The control unit is switch module or three-way valve；The air inlet diameter of the smoke collecting part is 2mm-16mm.
2. one kind as claimed in claim 1 detects SO in flue gas3Reaction collection device, it is characterized in that, in smoke collecting part
It is provided with the upstream of salt absorption plant and the blank part in filter element, or the reaction part to be located between reaction part
Filter element is equipped with branch road.
3. one kind detects SO in flue gas3Reaction collection device, it is characterized in that, absorb branch road, blank branch road, flue gas including salt and move
Power part, temperature-controlled member, control unit and fume collection part, the salt are absorbed branch road and are connected with fume collection part, described
Blank branch road absorbs branch circuit parallel connection with salt, and the salt absorbs branch road includes the first smoke collecting part and salt absorption piece, described
The flue gas of the first smoke collecting part collection enters fume collection part through salt absorption piece, and the blank branch road includes the second cigarette
Gas acquisition component and blank part, the second smoke collecting part enter fume collection part, the flue gas through blank part
Power part makes the smoke collecting part collection flue gas, and the smoke power part can be provided for gathering the conveying of flue gas
Power, the temperature of the flue gas of the temperature-controlled member control collection, flue gas are delivered to the temperature of salt absorption piece process and salt absorbs
The temperature of part is above SO3Adiabatic condensation temperature, holds villaumite in the salt absorption piece, and the control unit control flue gas is flowed through
Blank part or salt absorption piece；The control unit is switch module or three-way valve；The air inlet of the smoke collecting part
A diameter of 2mm-16mm.
4. one kind as claimed in claim 3 detects SO in flue gas3Reaction collection device, it is characterized in that, first flue gas is adopted
Between collection part and salt absorption piece, the first filter element is set；The downstream of the second smoke collecting part on the blank branch road
Second filter element is set.
5. the one kind as described in claim 1 or 3 detects SO in flue gas3Reaction collection device, it is characterized in that, smoke collecting portion
Part and salt absorption piece are connected by connecting tube, and the temperature of the temperature-controlled member control connecting tube is higher than SO3Adiabatic condensation temperature；Described
Blank part is the second connecting tube.
6. one kind as claimed in claim 5 detects SO in flue gas3Reaction collection device, it is characterized in that, the salt absorption piece
Detachable must be arranged on connecting tube in.
7. one kind detects SO in flue gas3System, it is characterized in that, including the reaction collection device as described in claim 1-6 is arbitrary
And HCl detection parts, content of the HCl detection parts for the HCl in the flue gas of collection in detection reaction collection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621039522.3U CN206020120U (en) | 2016-09-06 | 2016-09-06 | SO in a kind of detection flue gas3Reaction collection device and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621039522.3U CN206020120U (en) | 2016-09-06 | 2016-09-06 | SO in a kind of detection flue gas3Reaction collection device and system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206020120U true CN206020120U (en) | 2017-03-15 |
Family
ID=58259048
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621039522.3U Expired - Fee Related CN206020120U (en) | 2016-09-06 | 2016-09-06 | SO in a kind of detection flue gas3Reaction collection device and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206020120U (en) |
-
2016
- 2016-09-06 CN CN201621039522.3U patent/CN206020120U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106248442B (en) | SO in a kind of detection flue gas3Method | |
| CN106353457A (en) | Method and system for detecting flue gas SO3 based on salt absorption | |
| CN103472061A (en) | Device and method for detecting sulfur trioxide in flue gas on line | |
| CN103439152B (en) | The polymorphic sampling system of sulfuric anhydride and polymorphic method of testing in Concentration in Fixed Pollutants Source | |
| CN106289884B (en) | A kind of SO3The method of on-line checking | |
| CN109342284A (en) | A kind of detection system and detection method for harmful substances from flue gases | |
| CN102879239A (en) | Flue gas pre-treatment type sampling and analysis device and method for escaping ammonia of denitration system of power plant | |
| KR101760259B1 (en) | Extractive continuous ammonia monitoring system | |
| CN105944568A (en) | Multi-point sampling and measurement system for exhaust smoke from inlet and outlet of denitration CEMS of thermal power plant | |
| CN111982611B (en) | Online detection device and detection method for ammonia in flue gas | |
| CN110763811A (en) | Ammonia escape grid sampling device and detection method | |
| CN106501443A (en) | For testing the test system of sulfur trioxide concentration and its condenser in flue gas | |
| CN203490171U (en) | Online detection device for sulfur trioxide in smoke | |
| CN107941718A (en) | flue gas pollutant environment monitoring system | |
| CN206057037U (en) | A kind of SO3The device of on-line checking | |
| CN110806339A (en) | SO in flue gas of thermal power plant3Sampling method | |
| CN111366677A (en) | SCR catalyst performance evaluation device for removing nitric oxide, benzene and toluene in cooperation | |
| CN104931303A (en) | Sampling device and sampling method for detecting ammonia escaping concentration of smoke denitration | |
| CN204679474U (en) | A kind of device measuring escape ammonia concentration in equipment for denitrifying flue gas | |
| CN205982241U (en) | Detect flue gas SO3's flue gas reaction unit and system based on salt absorbs | |
| CN206020120U (en) | SO in a kind of detection flue gas3Reaction collection device and system | |
| CN108414299A (en) | A kind of stationary source exhaust gas sampling apparatus and the method for sampling | |
| CN202814766U (en) | Escape ammonia sampling analyzing device of smoke pretreatment type power plant denitrating system | |
| CN204924740U (en) | Automatic sampling device of portable sulfur trioxide chemical absorption | |
| WO2023061248A1 (en) | Form-based test method and apparatus for mercury in flue gas from stationary pollution source in whole process |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170315 |