CN206258426U - A kind of automatic collecting device for sulfur trioxide in coal steam-electric plant smoke - Google Patents
A kind of automatic collecting device for sulfur trioxide in coal steam-electric plant smoke Download PDFInfo
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- CN206258426U CN206258426U CN201621209273.8U CN201621209273U CN206258426U CN 206258426 U CN206258426 U CN 206258426U CN 201621209273 U CN201621209273 U CN 201621209273U CN 206258426 U CN206258426 U CN 206258426U
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- CN
- China
- Prior art keywords
- sulfur trioxide
- snakelike
- flue gas
- collecting device
- flue
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- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 title claims abstract description 100
- 239000000779 smoke Substances 0.000 title claims abstract description 34
- 239000003245 coal Substances 0.000 title claims abstract description 17
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 46
- 239000003546 flue gas Substances 0.000 claims abstract description 46
- 238000005070 sampling Methods 0.000 claims abstract description 39
- 238000010521 absorption reaction Methods 0.000 claims abstract description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000007788 liquid Substances 0.000 claims abstract description 15
- 238000005259 measurement Methods 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 7
- 238000001914 filtration Methods 0.000 claims description 6
- 239000000428 dust Substances 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 8
- 238000000034 method Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical class [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 241000790917 Dioxys <bee> Species 0.000 description 1
- 238000006424 Flood reaction Methods 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000006210 lotion Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
A kind of automatic collecting device for sulfur trioxide in coal steam-electric plant smoke, including sampling gun（2）, constant temperature water box（3）, snakelike absorption tube（5）, liquid drop separator（6）, vavuum pump（7）, atmospheric pressure meter（8）With the flowmeter with temperature survey（9）.The sampling gun inserts flue through walling of flue（1）In, sampling gun outlet connects snakelike absorption tube through pipeline；Snakelike absorption tube is placed in constant temperature water box；The flue gas of collection passes through liquid drop separator to vavuum pump after entering snakelike absorption tube；Flowmeter is entered by vavuum pump again, after being measured through flowmeter, by exhaust outlet（10）Discharge.The utility model utilizes integrated automatic collecting device, reduces human error, is easy to testing staff to carry, and improves the accuracy of operating efficiency and sulfur trioxide collection.The on-site collection work of the utility model sulfur trioxide in flue gas suitable for equipment for denitrifying flue gas.
Description
Technical field
The utility model is related to a kind of automatic collecting device for sulfur trioxide in coal steam-electric plant smoke, belongs to coal steam-electric plant smoke
Denitration technology field.
Background technology
As country is to the pay attention to day by day of power environment protection, selective catalytic reduction（SCR）Gas denitrifying technology is in the whole nation
Thermal power generation unit has obtained comprehensive popularization and has used.But at present in SCR denitration device running, the dioxy in flue gas
Change sulphur has the part to change into sulfur trioxide under denitrating catalyst effect, and the sulfur trioxide of generation is easily sprayed into denitrification process
Ammonia react to form ammonium salt and stick on lower flow device air preheater heat exchanger fin so that air preheater is produced on heat exchange hardware
The problems such as raw fouling, corrosion, ultimately result in air preheater and the phenomenons such as pressure drop rise, heat exchange efficiency reduction occur, when blocking serious very
Air-introduced machine stall can extremely be caused, so as to threaten the safe and stable operation of unit.Therefore, sulfur trioxide is dense in accurate measurement flue gas
Degree, has great importance for air preheater safe operation provides accurate foundation.
Sulfur trioxide in flue gas detection method is mainly and uses DL/T998 in country's coal-burning power plant denitrification apparatus at present《Lime
Stone-gypsum wet flue gas desulfurizing device performance acceptance test specification》The assay method of sulfur trioxide in middle flue gas, the method is main
Problem is that sulfur trioxide sampling collection process is more complicated in flue gas, and manual steps are more, easily causes sulfur trioxide sampling
Process produces deviation, so as to cause sulfur trioxide Concentration Testing inaccurate.
The content of the invention
The purpose of this utility model is that easily causing deviation etc. for sulfur trioxide in the current coal steam-electric plant smoke of collection by hand asks
A kind of topic, the utility model proposes automatic collecting device for sulfur trioxide in coal steam-electric plant smoke, it is to avoid artificial operating process
The error brought, is easy to testing staff to carry, and improves the accuracy of sulfur trioxide sampling.
The technical solution of the utility model is, a kind of automatic collecting device for sulfur trioxide in coal steam-electric plant smoke, institute
Device is stated to be surveyed including sampling gun, constant temperature water box, snakelike absorption tube, liquid drop separator, vavuum pump, atmospheric pressure meter and band temperature
The flowmeter of amount.The sampling gun is inserted in flue through walling of flue, and just to flue, sampling gun is exported through pipeline for sampling gun import
Connect snakelike absorption tube；Snakelike absorption tube is placed in constant temperature water box；The flue gas of collection passes through liquid after entering snakelike absorption tube
Drip separator to vavuum pump；Flowmeter is entered by vavuum pump again, after being measured through flowmeter, is discharged by exhaust outlet；It is attached in vavuum pump
Closely it is mounted with atmospheric pressure meter.
The constant temperature water box, absorption tube and liquid drop separator constitute sulfur trioxide in flue gas absorption system, for denitration dress
Put the trapping of sulfur trioxide in flue gas.
The sampling gun and smoke measurement system constitute smoke collecting measuring system, for smoke collecting and metering.
The smoke measurement system includes vavuum pump, flowmeter, pressure gauge and thermometer；Calculated for automatic real-time statistics
Required mark condition flue gas volume.
It is furnished with flue filtering material in the sampling gun, can prevents dust from entering；Meanwhile, sampling gun has heating function.
Described device carries out as follows the step of sulfur trioxide in flue gas is collected：
（1）By sampling gun（It is furnished with flue filtering material in sampling gun）In insertion flue, and sampling gun is heated to 160~
180 DEG C, sulfur trioxide will not condense to sampling gun the deviation for causing sampling during ensureing to gather flue gas；
（2）Sulfur trioxide in flue gas absorption system is entered by the flue gas of sampling gun, the flue gas for making entrance is being by constant
After 80 DEG C of constant temperature water box, the sulfur trioxide in flue gas is adsorbed in multistage absorption pipe, last flue gas is by after liquid drop separator
Enter into smoke collecting measuring system；
（3）Flue gas is in smoke collecting measuring system by flowmeter, pressure gauge, the isoparametric automatic measurement of thermometer
Afterwards, real-time statistics bid condition gas volume, data are provided for next step sulfur trioxide Concentration Testing is calculated.
The beneficial effects of the utility model are, a kind of automatic receipts for sulfur trioxide in coal steam-electric plant smoke of the utility model
Acquisition means are made up of sulfur trioxide in flue gas absorption system and smoke collecting measuring system.The utility model utilizes integrated automatic receipts
Acquisition means, reduce human error, are easy to testing staff to carry, and improve the accuracy of operating efficiency and sulfur trioxide collection,
And for the sulfur trioxide Concentration Testing result for subsequently obtaining is more accurate, stabilization provides Reliable guarantee.
The on-site collection work of the utility model sulfur trioxide in flue gas suitable for equipment for denitrifying flue gas.
Brief description of the drawings
Fig. 1 is the automatic collecting device structural representation of sulfur trioxide in flue gas；
In figure, 1 is flue；2 sampling guns；3 constant temperature water box；4 discharge outlet；5 snakelike absorption tubes；6 liquid drop separators；7 is true
Empty pump；8 atmospheric pressure meters；9 flowmeters with temperature survey；10 exhaust outlets.
Specific embodiment
Specific embodiment of the present utility model is as shown in Figure 1.
A kind of automatic collecting device for sulfur trioxide in coal steam-electric plant smoke, described device includes that sampling gun 2, water-bath is permanent
Incubator 3, snakelike absorption tube 5, liquid drop separator 6, vavuum pump 7, atmospheric pressure meter 8 and the flowmeter with temperature survey 9.It is described to adopt
Sample rifle is inserted in flue 1 through walling of flue, and just to flue 1, sampling gun 2 is exported and connects snakelike absorption through pipeline the import of sampling gun 2
Pipe 5；Snakelike absorption tube 5 is placed in constant temperature water box 3；The flue gas of collection passes through liquid drop separator 6 after entering snakelike absorption tube 5
To vavuum pump 7；The flowmeter 9 with temperature survey is entered by vavuum pump 7 again, after being measured through the flowmeter with temperature survey, by arranging
Gas port 10 is discharged；Atmospheric pressure meter 8 is mounted near vavuum pump 7；The bottom of constant temperature water box 3 is provided with discharge outlet 4.
The present embodiment sulfur trioxide in flue gas absorption system is mainly used in the collection of denitrification apparatus sulfur trioxide in flue gas, including water
Bath insulating box 3, absorption tube 5 and liquid drop separator 6 etc..
The present embodiment smoke collecting measuring system includes sampling gun and smoke measurement system.Wherein sampling gun 2 has heating
It is furnished with flue filtering material in function and rifle, prevents dust from entering.Smoke measurement system integrated vacuum pump 7, with temperature survey
The equipment such as flowmeter 9 and atmospheric pressure meter 8, and the function of required mark condition flue gas volume is calculated with automatic real-time statistics.
Specific implementation step is as follows：
（1）To be prepared in advance two clean anhydrous snakelike absorption tube series connection, and will be connected with high temperature resistant silicon sebific duct
Snakelike absorption tube two ends connected with sampling gun and liquid drop separator respectively；
（2）The snakelike absorption tube connected is put into the constant water bath box into sulfur trioxide in flue gas absorption system, to thermostatted water
Bath cabinet is added water to and floods snakelike absorption tube, and heated water bath case reclaimed water is to more than 60 DEG C and keeps constant temperature；
（3）Sampling gun（Be furnished with flue filtering material in sampling gun, the filtering material be it is a kind of not with flue gas generationization
Learn reaction and resistant to elevated temperatures activated carbon class material）After being heated to 160~180 DEG C, in insertion flue；
（4）Start the vavuum pump in smoke collecting measuring system, control flue gas flow carries out the oxygen of flue gas three in 5-6L/min
Change sulphur sampling so that flue gas enters sulfur trioxide in flue gas absorption system by the flue gas of sampling gun, and the flue gas of entrance is by water
After bath insulating box, the sulfur trioxide in flue gas is adsorbed in the snakelike absorption tube of two-stage, last flue gas is laggard by liquid drop separator
Enter to smoke collecting measuring system, flue gas is isoparametric by flowmeter, pressure gauge, thermometer in smoke collecting measuring system
After automatic measurement, real-time statistics bid condition gas volume；
（5）Complete sulfur trioxide in flue gas sampling after, with washing lotion will connect the snakelike absorption tube of two-stage in sulfur trioxide rush
Wash in getting off to be settled to 100mL volumetric flasks, and record the mark shape volume of sampling flue gas simultaneously, be fabricated to sulfur trioxide sample,
Marked title and preserved, be next step carry out sulfur trioxide Concentration Testing work it is ready.
Claims (7)
1. a kind of automatic collecting device for sulfur trioxide in coal steam-electric plant smoke, it is characterised in that described device includes sampling
Rifle, constant temperature water box, snakelike absorption tube, liquid drop separator, vavuum pump, atmospheric pressure meter and the flowmeter with temperature survey；Institute
Sampling gun is stated through in walling of flue insertion flue, just to flue, sampling gun outlet connects snakelike absorption through pipeline for sampling gun import
Pipe；Snakelike absorption tube is placed in constant temperature water box；The flue gas of collection passes through liquid drop separator to very after entering snakelike absorption tube
Empty pump；Flowmeter is entered by vavuum pump again, after being measured through flowmeter, is discharged by exhaust outlet；Air is mounted near vavuum pump
Pressure gauge.
2. a kind of automatic collecting device for sulfur trioxide in coal steam-electric plant smoke according to claim 1, its feature exists
In the constant temperature water box, absorption tube and liquid drop separator constitute sulfur trioxide in flue gas absorption system, for denitrification apparatus flue gas
The trapping of sulfur trioxide.
3. a kind of automatic collecting device for sulfur trioxide in coal steam-electric plant smoke according to claim 1, its feature exists
In the sampling gun and smoke measurement system constitute smoke collecting measuring system, for smoke collecting and metering.
4. a kind of automatic collecting device for sulfur trioxide in coal steam-electric plant smoke according to claim 3, its feature exists
In the smoke measurement system includes vavuum pump, flowmeter, pressure gauge and thermometer；Needed for being calculated for automatic real-time statistics
Mark condition flue gas volume.
5. a kind of automatic collecting device for sulfur trioxide in coal steam-electric plant smoke according to claim 3, its feature exists
In, it is characterised in that it is furnished with flue filtering material in the sampling gun, can prevents dust from entering；Meanwhile, sampling gun has heating
Function.
6. a kind of automatic collecting device for sulfur trioxide in coal steam-electric plant smoke according to claim 1, its feature exists
In the snakelike absorption tube has many, is sequentially connected in series each other.
7. a kind of automatic collecting device for sulfur trioxide in coal steam-electric plant smoke according to claim 1, its feature exists
In the bath temperature of the constant temperature water box is 70o DEG C ± 10 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621209273.8U CN206258426U (en) | 2016-11-10 | 2016-11-10 | A kind of automatic collecting device for sulfur trioxide in coal steam-electric plant smoke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621209273.8U CN206258426U (en) | 2016-11-10 | 2016-11-10 | A kind of automatic collecting device for sulfur trioxide in coal steam-electric plant smoke |
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| Publication Number | Publication Date |
|---|---|
| CN206258426U true CN206258426U (en) | 2017-06-16 |
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ID=59025786
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621209273.8U Active CN206258426U (en) | 2016-11-10 | 2016-11-10 | A kind of automatic collecting device for sulfur trioxide in coal steam-electric plant smoke |
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Cited By (1)
| 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 |
-
2016
- 2016-11-10 CN CN201621209273.8U patent/CN206258426U/en active Active
Cited By (1)
| 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 |
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| GR01 | Patent grant |