CN207866584U - Sulfur trioxide's sampling system in coal fired boiler flue gas - Google Patents
Sulfur trioxide's sampling system in coal fired boiler flue gas Download PDFInfo
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- CN207866584U CN207866584U CN201820236450.4U CN201820236450U CN207866584U CN 207866584 U CN207866584 U CN 207866584U CN 201820236450 U CN201820236450 U CN 201820236450U CN 207866584 U CN207866584 U CN 207866584U
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- Prior art keywords
- bottle
- flue gas
- heating
- vacuum pump
- sulfur trioxide
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- 239000003546 flue gas Substances 0.000 title claims abstract description 60
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 238000005070 sampling Methods 0.000 title claims abstract description 49
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 48
- 239000003245 coal Substances 0.000 title claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 238000010438 heat treatment Methods 0.000 claims abstract description 20
- 239000007789 gas Substances 0.000 claims abstract description 18
- -1 heating sampling gun Chemical compound 0.000 claims abstract description 6
- 239000003517 fume Substances 0.000 claims description 22
- 238000009833 condensation Methods 0.000 claims description 17
- 230000005494 condensation Effects 0.000 claims description 11
- 238000001914 filtration Methods 0.000 claims description 7
- 238000009413 insulation Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 5
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 5
- 239000000779 smoke Substances 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 3
- 238000005485 electric heating Methods 0.000 claims description 3
- 239000011148 porous material Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 238000005406 washing Methods 0.000 abstract description 5
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 27
- 238000000034 method Methods 0.000 description 21
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 19
- 238000001514 detection method Methods 0.000 description 13
- 230000008569 process Effects 0.000 description 11
- 239000007788 liquid Substances 0.000 description 8
- 238000004448 titration Methods 0.000 description 8
- 238000010521 absorption reaction Methods 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000002253 acid Substances 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 241000270295 Serpentes Species 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- XTUSEBKMEQERQV-UHFFFAOYSA-N propan-2-ol;hydrate Chemical compound O.CC(C)O XTUSEBKMEQERQV-UHFFFAOYSA-N 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- FRPHFZCDPYBUAU-UHFFFAOYSA-N Bromocresolgreen Chemical compound CC1=C(Br)C(O)=C(Br)C=C1C1(C=2C(=C(Br)C(O)=C(Br)C=2)C)C2=CC=CC=C2S(=O)(=O)O1 FRPHFZCDPYBUAU-UHFFFAOYSA-N 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-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
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002274 desiccant Substances 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004090 dissolution 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
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000006210 lotion Substances 0.000 description 1
- CEQFOVLGLXCDCX-WUKNDPDISA-N methyl red Chemical compound C1=CC(N(C)C)=CC=C1\N=N\C1=CC=CC=C1C(O)=O CEQFOVLGLXCDCX-WUKNDPDISA-N 0.000 description 1
- MXWHMTNPTTVWDM-NXOFHUPFSA-N mitoguazone Chemical compound NC(N)=N\N=C(/C)\C=N\N=C(N)N MXWHMTNPTTVWDM-NXOFHUPFSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a sulfur trioxide's sampling system in coal fired boiler flue gas, including heating sampling gun, heating filter, electric heat tracing pipe, the condenser pipe, the constant temperature water bath case, gas washing bottle and vacuum pump, wherein, be provided with the coiled pipe in the condenser pipe, the rifle head of heating sampling gun is located the flue, the export of heating sampling gun is connected with the one end of coiled pipe through heating filter and electric heat tracing pipe in proper order, the other end of coiled pipe is linked together with the entry of gas washing bottle, the export of gas washing bottle is linked together with the entry of vacuum pump, wherein, be provided with wet-type flowmeter and barometer between gas washing bottle and the vacuum pump, the constant temperature water bath case is linked together with the condenser pipe, SO meter and barometer in the SO flue gas can effectually3And (5) detecting the precision.
Description
Technical field
The utility model belongs to pollutant sampling technique field, is related to a kind of sampling of sulfur trioxide in fire coal boiler fume
System.
Background technology
Coal in China consumption occupies first place in the world, and wherein about half is used for station boiler.Sulphur in coal is in combustion
A small amount of SO can be formed3Pollutant.SO3Though content is few in flue gas, flue gas acid dew point can be significantly improved, and with the water in flue gas
Steam, which combines, generates H2SO4, serious low-temperature corrosion can be generated to air preheater upstream device, flue, and fill with SCR denitration
Set the NH of escape3In conjunction with generation NH4HSO4Air preheater is blocked, boiler operatiopn safety is influenced.To mitigate air preheater downstream
Equipment, the low-temperature corrosion degree of flue, boiler are forced to improve exhaust gas temperature, reduce boiler efficiency, increase generating set
Coal consumption.
Especially in recent years, with national standard GB13223-2011《Fossil-fuel power plant atmospheric pollutant emission standard》Implement, it is coal-fired
Boiler generally implements desulphurization and denitration, dedusting environment friendly transformation.Wherein, most coal-burning boilers all use selective catalytic reduction
(SCR) technique carries out denitration transformation, and the catalyst that SCR techniques use can promote SO2It is converted into SO3, this will improve SO in flue gas3
Concentration makes SO3Harm is further deepened.At the same time, recent domestic fire coal boiler fume residual-heat utilization technology, as low pressure saves coal
Device, MGGH etc. are increasingly used widely.These technologies are drawn by fume afterheat after withdrawal air preheater, or by these waste heats
Unit heat regenerative system is returned to improve economy, or by the neat stress after these waste-heat desulfurizing towers to solve smoke evacuation visual pollution
Problem.No matter which kind of fume afterheat utilization technology, flue-gas temperature further decreases after all leading to air preheater, and aggravation is follow-up
The low-temperature corrosion of equipment and flue.Therefore, it is necessary to SO in fire coal boiler fume3Transport along flue gas flow is ground
Study carefully, alleviate the low-temperature corrosion of air preheater blocking and follow-up equipment, flue gas to greatest extent, and how accurately to measure in flue gas
SO3Concentration and SO3Condensation temperature is to carry out the basic premise of the studies above work.
SO in fire coal boiler fume3Detection technique be always a problem in industry, there are two main causes：When
SO in flue gas3Concentration is very low, the general only magnitude of more than ten ppm, the SO of all kinds of sour gas, especially high concentration in flue gas2Meeting
To SO3Testing result generate very big interference；Second is that flue-gas temperature has been approached or is less than SO in back-end ductwork3Condensation temperature, adopt
SO when sample3It is easy to be condensate in SO3On pipeline before sample collection device, the especially surface of flying dust filter device causes to adopt
Sample, detection failure.
Currently, domestic fire coal boiler fume SO3Common detection method mainly has isopropanol absorption process and control condensation method two
Kind.Isopropanol absorption process is derived from U.S. EPA Method8 methods, is a kind of selective dissolution absorption process.Isopropanol absorption process is logical
Flue gas extraction is passed through drexel bottle by over sampling device, and the isopropanol water solution for being 80% equipped with mass concentration in drexel bottle passes through
Isopropanol water solution absorbs SO3Or H2SO4, while isopropanol prevents SO2The effect of oxidation, aqueous isopropanol drexel bottle are followed by
3%H2O2Solution drexel bottle absorbs the SO in flue gas2, enter gas flowmeter metered volume after drying, above-mentioned drexel bottle is put
In 0 DEG C of ice bath.It controls condensation method and is derived from U.S. EPA Method8A methods, be a kind of selectivity condensation sampling method, flue gas
Enter filtrating equipment of flue gas from after flue extraction, glass coiled pipe is reached after filtering, temperature passes through thermostatted water in glass coiled pipe
Bath control is between 65-100 DEG C, the SO in glass coiled pipe3Or H2SO4Condensation forms fine droplet, and drop is centrifuged in coiled pipe
It is got rid of under force effect to wall surface and obtains SO to collect3Or H2SO4Detect liquid.Currently, electric power standard DL/T 998-2006 recommendations are adopted
With SO in control condensation method detection flue gas3Concentration.
Isopropanol absorption process major defect is SO2There is certain solubility in aqueous isopropanol, works as SO2Concentration is compared with SO3Concentration
When being higher by very much, the SO that is dissolved in aqueous isopropanol2SO can be seriously affected3Sampled result, and SO in fire coal boiler fume2
Concentration generally compares SO3Concentration is higher by nearly two magnitudes, therefore isopropanol absorption process can lead to the SO of fire coal boiler fume3Detection misses
Difference increases, it is therefore desirable to design a kind of sampling system to improve SO3Accuracy of detection.
Utility model content
The shortcomings that the purpose of the utility model is to overcome the above-mentioned prior arts provides three in a kind of fire coal boiler fume
The sampling system of sulfur oxide, the sampling system can effectively improve SO3Accuracy of detection.
In order to achieve the above objectives, the sampling system of sulfur trioxide includes adding in fire coal boiler fume described in the utility model
Hot sampling gun, hot filtration apparatus, electric tracing tube, condenser pipe, constant water bath box, drexel bottle and vacuum pump, wherein set in condenser pipe
It is equipped with coiled pipe, the pipette tips for heating sampling gun are located in flue, heat the outlet of sampling gun heated filter and electric companion successively
Heat pipe is connected with one end of coiled pipe, and the other end of coiled pipe is connected with the entrance of drexel bottle, the outlet of drexel bottle with it is true
The entrance of sky pump is connected, wherein be provided with wet flow indicator and barometer between drexel bottle and vacuum pump, constant water bath box with
Condenser pipe is connected.
The first anti-suck bottle is provided between coiled pipe and drexel bottle.
Outlet the second anti-suck bottle and drier bottle of drexel bottle are connected with the entrance of vacuum pump, and wet flow indicator
Between the second anti-suck bottle and drier bottle, barometer is used to measure the flue gas pressures of wet flow indicator inlet.
It is provided with flow control valve between wet flow indicator and drier bottle.
It is double sleeve stainless steel structures to heat sampling gun, and electricity is provided between the inner wall and outer wall of heat tracing smoke sampling rifle and is added
Hot device makes SO in flue gas by the electric heater3The temperature of gas is higher than SO3The condensation temperature of gas.
It is provided with heat insulation layer on the outer wall of electric tracing tube, electric heating pipeline is provided between heat insulation layer and the outer wall of electric tracing tube
Layer.
Hot filtration apparatus is prepared using ceramic porous material；
Electric tracing tube is prepared by polytetrafluoroethylene material；
Alkaline rinse is placed in drexel bottle；
The vacuum pump is vacuum diaphragm pump, and the pump head of vacuum pump is prepared using polytetrafluoroethylene material.
The utility model has the advantages that：
The sampling system of sulfur trioxide when specific operation, is passing through heating in fire coal boiler fume described in the utility model
Sampling gun carries out the sampling of flue gas, and the heated filter of heating sampling gun output flue gas and electric tracing tube enter in coiled pipe,
And cooled down in coiled pipe, make the SO in flue gas3Gas condenses, and the flue gas of coiled pipe output passes through air pressure after drexel bottle
Meter and wet flow indicator measure the flow and pressure of flue gas, to realize SO in fire coal boiler fume3Sampling, then when detecting,
The SO that can be obtained according to the flow and pressure and snakelike in-tube condensation of flue gas3Amount calculates SO in flue gas3Concentration, operation letter
It is single, it is convenient, the precision of sampling can be effectively improved, and then reduce SO in flue gas3Detection error.It needs to illustrate simultaneously
It is that the utility model cools down the flue gas in coiled pipe using the thermostatted water in constant water bath box, therefore the temperature of flue gas
It is relatively easy to control, while flue gas whole progress heat tracing before entering coiled pipe, avoid the SO in flue gas3Gas is transmitting
The error of detection is condensed and increased in the process.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Wherein, 1 be heating sampling gun, 2 be hot filtration apparatus, 3 be electric tracing tube, 4 be condenser pipe, 5 be constant water bath box,
6 be the first anti-suck bottle, 7 be drexel bottle, 8 be the second anti-suck bottle, 9 be wet flow indicator, 10 be flow control valve, 11 be dry
Drying prescription bottle, 12 are vacuum pump.
Specific implementation mode
The utility model is described in further detail below in conjunction with the accompanying drawings：
With reference to figure 1, the sampling system of sulfur trioxide includes that heating samples in fire coal boiler fume described in the utility model
Rifle 1, hot filtration apparatus 2, electric tracing tube 3, condenser pipe 4, constant water bath box 5, drexel bottle 7 and vacuum pump 12, wherein condenser pipe 4
Inside it is provided with coiled pipe, the pipette tips of heating sampling gun 1 are located in flue, the outlet of heating sampling gun 1 heated filter 2 successively
And electric tracing tube 3 is connected with one end of coiled pipe, the other end of coiled pipe is connected with the entrance of drexel bottle 7, drexel bottle 7
Outlet is connected with the entrance of vacuum pump 12, wherein wet flow indicator 9 and air pressure are provided between drexel bottle 7 and vacuum pump 12
Meter, constant water bath box 5 are connected with condenser pipe 4.
The first anti-suck bottle 6 is provided between coiled pipe and drexel bottle 7；The second anti-suck of outlet bottle 8 of drexel bottle 7 and
Drier bottle 11 is connected with the entrance of vacuum pump 12, and wet flow indicator 9 be located at the second anti-suck bottle 8 and drier bottle 11 it
Between, barometer is used to measure the flue gas pressures of 9 inlet of wet flow indicator；It is arranged between wet flow indicator 9 and drier bottle 11
There is flow control valve 10.
It is double sleeve stainless steel structures to heat sampling gun 1, and electricity is provided between the inner wall and outer wall of heat tracing smoke sampling rifle
Heater makes SO in flue gas by the electric heater3The temperature of gas is higher than SO3The condensation temperature of gas；Electric tracing tube 3
It is provided with heat insulation layer on outer wall, electric heating pipeline layer is provided between heat insulation layer and the outer wall of electric tracing tube 3.
Hot filtration apparatus 2 is prepared using ceramic porous material；Electric tracing tube 3 is by prepared by polytetrafluoroethylene material
At；It is placed with alkaline rinse in drexel bottle 7；The vacuum pump 12 is vacuum diaphragm pump, and the pump head of vacuum pump 12 uses polytetrafluoro
Vinyl material is prepared.
The detection process of SO3 is in flue gas：
It heats sampling gun 1 and acquires flue gas in flue, the heated filter 2 of the flue gas and electric tracing tube 3 enter snake
It in shape pipe, and exchanges heat with the thermostatted water in condenser pipe 4 in coiled pipe, makes the SO in flue gas3Gas condense and cover in
In coiled pipe, wherein the thermostatted water in constant water bath box 5 enters in condenser pipe 4, the thermostatted water in condenser pipe 4 and coiled pipe
Interior flue gas is entered after being exchanged heat in constant water bath box 5, so that the temperature of flue gas is more than the water dew point of flue gas and is less than SO3Gas
The condensation temperature of body, the flue gas of coiled pipe output is successively through the first anti-suck bottle 6, drexel bottle 7, the second anti-suck bottle 8 and drying
Agent bottle 11 enters in vacuum pump 12, and the flow for detecting 8 exit flue gas of the second anti-suck bottle in real time by wet flow indicator 9 is believed
Breath, the pressure information of 9 inlet flue gas of wet flow indicator is detected by barometer in real time；
The SO in coiled pipe is cleaned by cleaning solution3Sample is condensed, SO is obtained3Liquid is detected, NaOH titrands pair are passed through
SO3It detects liquid and carries out chemistry titration, and record the amount of the NaOH titrands consumed during chemistry titration, then basis disappears
The amount of the NaOH titrands of consumption and the concentration of NaOH titrands calculate SO in flue gas using acid-base neutralization method3Quality；
The volume that obtained flue gas flow information calculates flue gas is measured according to wet flow indicator 9, then according to the temperature of flue gas
The pressure of degree and flue gas is modified the flue gas volume being calculated, and obtains the sampling volume of flue gas under the status of criterion, then root
According to SO in the sampling volume and flue gas of flue gas under the status of criterion3Mass Calculation flue gas in SO3Concentration.
It should be noted that the aqueous isopropanol that cleaning solution is a concentration of 5%, wherein quick added with soda acid in cleaning solution
Sense type indicator, soda acid responsive type indicator are the mixture of methyl red and bromocresol green；
By NaOH titrands to SO3It detects liquid and carries out chemistry titration, and record what chemistry titration consumed in the process
The detailed process of the amount of NaOH titrands is：By NaOH titrands to SO3It detects liquid and carries out chemistry titration, work as SO3
When the color of detection liquid becomes beam green from claret, then stops chemistry titration, stood after stirring, work as SO3Detect the color of liquid
When variation, then continue chemistry titration, works as SO3When the color of detection liquid does not change, then consumption during chemistry titration is recorded
NaOH titrands amount, wherein a concentration of 0.1mol/L of NaOH titrands.
The temperature of flue gas is set to be higher than SO by heating the electric heater in sampling gun 13The condensation temperature of gas ensures flue gas
It is not condensed when by heating sampling gun 1.
Constant water bath box 5 both can be coiled pipe bulk temperature constant control more than flue gas water dew point and SO3Condensation temperature
To condense SO below degree3Gas, while the bulk temperature of coiled pipe can be stepped up until SO3Condensation temperature, accurately to measure
SO under specific coal quality neat stress environment3Condensation temperature.
Prevent the washing lotion in drexel bottle 7 in detection process suck-back to snake by the first anti-suck bottle 6 and the second anti-suck bottle 8
SO is caused in shape pipe3Sampling failure.
Claims (7)
1. the sampling system of sulfur trioxide in a kind of fire coal boiler fume, which is characterized in that including heating sampling gun (1), heating
Filter (2), electric tracing tube (3), condenser pipe (4), constant water bath box (5), drexel bottle (7) and vacuum pump (12), wherein condensation
It manages and is provided with coiled pipe in (4), the pipette tips of heating sampling gun (1) are located in flue, and the outlet of heating sampling gun (1) is successively through adding
Heat filter (2) and electric tracing tube (3) are connected with one end of coiled pipe, the entrance of the other end and drexel bottle (7) of coiled pipe
It is connected, the outlet of drexel bottle (7) is connected with the entrance of vacuum pump (12), wherein between drexel bottle (7) and vacuum pump (12)
It is provided with wet flow indicator (9) and barometer, constant water bath box (5) is connected with condenser pipe (4).
2. the sampling system of sulfur trioxide in fire coal boiler fume according to claim 1, which is characterized in that coiled pipe with
The first anti-suck bottle (6) is provided between drexel bottle (7).
3. the sampling system of sulfur trioxide in fire coal boiler fume according to claim 2, which is characterized in that drexel bottle
(7) the second anti-suck of outlet bottle (8) and drier bottle (11) is connected with the entrance of vacuum pump (12), and wet flow indicator
(9) between the second anti-suck bottle (8) and drier bottle (11), barometer is for measuring wet flow indicator (9) inlet
Flue gas pressures.
4. the sampling system of sulfur trioxide in fire coal boiler fume according to claim 3, which is characterized in that wet type flow
It is provided with flow control valve (10) between meter (9) and drier bottle (11).
5. the sampling system of sulfur trioxide in fire coal boiler fume according to claim 1, which is characterized in that heating sampling
Rifle (1) is double sleeve stainless steel structures, electric heater is provided between the inner wall and outer wall of heat tracing smoke sampling rifle, by described
Electric heater makes SO in flue gas3The temperature of gas is higher than SO3The condensation temperature of gas.
6. the sampling system of sulfur trioxide in fire coal boiler fume according to claim 1, which is characterized in that electric tracing tube
(3) it is provided with heat insulation layer on outer wall, electric heating pipeline layer is provided between heat insulation layer and the outer wall of electric tracing tube (3).
7. the sampling system of sulfur trioxide in fire coal boiler fume according to claim 1, which is characterized in that heating and filtering
Device (2) is prepared using ceramic porous material；
Electric tracing tube (3) is prepared by polytetrafluoroethylene material；
It is placed with alkaline rinse in drexel bottle (7)；
The vacuum pump (12) is vacuum diaphragm pump, and the pump head of vacuum pump (12) is prepared using polytetrafluoroethylene material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820236450.4U CN207866584U (en) | 2018-02-09 | 2018-02-09 | Sulfur trioxide's sampling system in coal fired boiler flue gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820236450.4U CN207866584U (en) | 2018-02-09 | 2018-02-09 | Sulfur trioxide's sampling system in coal fired boiler flue gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207866584U true CN207866584U (en) | 2018-09-14 |
Family
ID=63457021
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| CN201820236450.4U Active CN207866584U (en) | 2018-02-09 | 2018-02-09 | Sulfur trioxide's sampling system in coal fired boiler flue gas |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108303293A (en) * | 2018-02-09 | 2018-07-20 | 华能国际电力股份有限公司 | System and method for sampling and detecting sulfur trioxide in coal-fired boiler flue gas |
| CN110220755A (en) * | 2019-07-24 | 2019-09-10 | 福建省锅炉压力容器检验研究院 | A kind of stationary source sulfureous in flue gas acid mist sample devices |
| CN115792079A (en) * | 2022-10-20 | 2023-03-14 | 国能唯真(山东)测试分析有限公司 | Method for measuring ammonium sulfate and ammonium bisulfate in coal-fired flue gas |
-
2018
- 2018-02-09 CN CN201820236450.4U patent/CN207866584U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108303293A (en) * | 2018-02-09 | 2018-07-20 | 华能国际电力股份有限公司 | System and method for sampling and detecting sulfur trioxide in coal-fired boiler flue gas |
| CN110220755A (en) * | 2019-07-24 | 2019-09-10 | 福建省锅炉压力容器检验研究院 | A kind of stationary source sulfureous in flue gas acid mist sample devices |
| CN115792079A (en) * | 2022-10-20 | 2023-03-14 | 国能唯真(山东)测试分析有限公司 | Method for measuring ammonium sulfate and ammonium bisulfate in coal-fired flue gas |
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