CN106813954A - A kind of sampling system suitable for the sampling of low concentration sulfur trioxide - Google Patents
A kind of sampling system suitable for the sampling of low concentration sulfur trioxide Download PDFInfo
- Publication number
- CN106813954A CN106813954A CN201710049703.7A CN201710049703A CN106813954A CN 106813954 A CN106813954 A CN 106813954A CN 201710049703 A CN201710049703 A CN 201710049703A CN 106813954 A CN106813954 A CN 106813954A
- Authority
- CN
- China
- Prior art keywords
- sulfur trioxide
- sampling
- condenser coil
- water bath
- thermostat water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- AKEJUJNQAAGONA-UHFFFAOYSA-N sulfur trioxide Chemical compound O=S(=O)=O AKEJUJNQAAGONA-UHFFFAOYSA-N 0.000 title claims abstract description 122
- 238000005070 sampling Methods 0.000 title claims abstract description 64
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 32
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 22
- 239000003546 flue gas Substances 0.000 claims abstract description 22
- 238000010521 absorption reaction Methods 0.000 claims abstract description 20
- 238000009833 condensation Methods 0.000 claims abstract description 17
- 230000005494 condensation Effects 0.000 claims abstract description 17
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims abstract description 12
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 claims abstract description 10
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims description 10
- 238000010438 heat treatment Methods 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 4
- TXKMVPPZCYKFAC-UHFFFAOYSA-N disulfur monoxide Inorganic materials O=S=S TXKMVPPZCYKFAC-UHFFFAOYSA-N 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 5
- 239000000428 dust Substances 0.000 description 5
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 5
- 239000000523 sample Substances 0.000 description 5
- 239000008187 granular material Substances 0.000 description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- -1 isopropanol Sulfur trioxide Chemical compound 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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
- G01N1/24—Suction devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L7/00—Heating or cooling apparatus; Heat insulating devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L7/00—Heating or cooling apparatus; Heat insulating devices
- B01L7/02—Water baths; Sand baths; Air baths
Abstract
The present invention relates to a kind of sampling system suitable for the sampling of low concentration sulfur trioxide, including the first thermostat water bath, the second thermostat water bath, ice bath pot, Drexel bottle and aspiration pump, the first condenser coil is provided with first thermostat water bath, the second condenser coil is provided with second thermostat water bath, hydrogen peroxide is provided with Drexel bottle, sulfur trioxide sampling gun is connected with one end of first condenser coil, absorption bottle is provided with ice bath pot, isopropanol is provided with absorption bottle, absorption bottle is connected with Drexel bottle, and Drexel bottle is connected with aspiration pump；Advantages of the present invention：Sampling processing is carried out by sulfur trioxide sampling gun flue gas, flue gas is passed sequentially through in the absorption bottle for entering ice bath pot after the first thermostat water bath and the second thermostat water bath condensation process, realize that sulfur trioxide is condensed and collection by isopropanol, condensed equivalent to existing single condenser coil, can ensure that sulfur trioxide total condensation, collection in flue gas, condensation efficiency is improved, sulfur trioxide is collected completely in being capable of achieving flue gas.
Description
Technical field
The present invention relates to a kind of sampling system suitable for the sampling of low concentration sulfur trioxide.
Background technology
Sulfur trioxide is a kind of great pollution that caused by coal burning thing of harmfulness, three oxidations generated in existing coal-fired plant flue gas
Sulphur, the sampling apparatus of existing sulfur trioxide includes sampling gun and single condenser coil, and being sampled by sampling gun, it is cold to be then sent to
Solidifying coil condensation is collected, and existing sampling apparatus is not suitable with the test of low concentration sulfur trioxide, and test data is inaccurate, it is impossible to real
The total condensation of sulfur trioxide is collected in existing flue gas, and sampling gun is easily inhaled by dust granules to sulfur trioxide in chilling process
It is attached.
The content of the invention
The technical problem to be solved in the present invention is just to provide a kind of sampling system suitable for the sampling of low concentration sulfur trioxide,
Solve the problems, such as that existing sampling apparatus can not realize that sulfur trioxide total condensation is collected.
In order to solve the above-mentioned technical problem, the present invention is achieved by the following technical solutions：One kind is applied to low concentration
The sampling system of sulfur trioxide sampling, including the first thermostat water bath, the second thermostat water bath, ice bath pot, Drexel bottle and pumping
Pump, is provided with the first condenser coil in the first thermostat water bath, the second condenser coil is provided with the second thermostat water bath, in Drexel bottle
The hydrogen peroxide that can wash away sulfur dioxide in flue gas is provided with, heatable sulfur trioxide is connected with one end of the first condenser coil and is adopted
Sample rifle, the other end of the first condenser coil is connected with one end of the second condenser coil, is provided with and the second condenser coil in ice bath pot
The connected absorption bottle of the other end, the isopropanol that can ensure that sulfur trioxide total condensation in flue gas, collect is provided with absorption bottle, inhale
Receive bottle to be connected with Drexel bottle, Drexel bottle is connected with aspiration pump.
Preferably, the maximum heating temperature of sulfur trioxide sampling gun is not less than 300 DEG C, and metal filter is provided with sampling gun
Core, absorption of the dust granules to sulfur trioxide when can effectively avoid low temperature.
Preferably, sulfur trioxide sampling gun is connected by connecting flexible pipe with the first condenser coil, and the highest for connecting flexible pipe adds
Hot temperature is not less than 280 DEG C, can prevent sulfur trioxide from connecting soft in-tube condensation.
Preferably, the temperature in the first thermostat water bath and the second thermostat water bath is all provided with being set to 60~65 DEG C, ice bath pot
Interior temperature setting into -2~0 DEG C, collect in can ensure that flue gas by sulfur trioxide total condensation.
Preferably, the first condenser coil and the second condenser coil are snakelike glass coil pipe, Stability Analysis of Structures, installing/dismounting side
Just, the damage of the first condenser coil and the second condenser coil can be prevented, is conducive to sulfur trioxide to convey completely.
Preferably, drier is provided with aspiration pump, can ensure that the security of aspiration pump.
In sum, advantages of the present invention：1. sampling processing is carried out by sulfur trioxide sampling gun flue gas, flue gas leads to successively
Cross after the first thermostat water bath and the second thermostat water bath condensation process in the absorption bottle for entering ice bath pot, realized by isopropanol
Sulfur trioxide is condensed and collected, and is condensed equivalent to existing single condenser coil, can ensure that sulfur trioxide total condensation, receipts in flue gas
Collection, improves condensation efficiency, it is adaptable to which low concentration sulfur trioxide is sampled, and sulfur trioxide is collected completely in being capable of achieving flue gas；
2. the sulfur trioxide of the condensation in absorption bottle is collected after Drexel bottle is processed by aspiration pump, by gas washing
The dioxygen water energy being provided with bottle effectively washes away sulfur dioxide in flue gas, improves the data that sulfur trioxide collects test；
3. sulfur trioxide sampling gun is arranged to heatable structure, and dust granules are to three oxidations when can effectively avoid low temperature
The absorption of sulphur, efficiency when improving sampling.
Brief description of the drawings
The invention will be further described below in conjunction with the accompanying drawings：
Fig. 1 is a kind of structural representation of sampling system suitable for the sampling of low concentration sulfur trioxide of the present invention.
Specific embodiment
As shown in figure 1, a kind of sampling system suitable for the sampling of low concentration sulfur trioxide, including the first thermostat water bath 1,
Second thermostat water bath 2, ice bath pot 3, Drexel bottle 4 and aspiration pump 5, the first condenser coil 11 is provided with the first thermostat water bath 1,
It is provided with the second condenser coil 21, Drexel bottle 4 in second thermostat water bath 2 and is provided with the hydrogen peroxide that can wash away sulfur dioxide in flue gas
41, heatable sulfur trioxide sampling gun 6, the other end of the first condenser coil 11 are connected with one end of the first condenser coil 11
One end with the second condenser coil 21 is connected, and the absorption bottle being connected with the other end of the second condenser coil 21 is provided with ice bath pot 3
7, it is provided with absorption bottle 7 and can ensure that sulfur trioxide total condensation, the isopropanol 71 of collection, absorption bottle 7 and the phase of Drexel bottle 4 in flue gas
Even, Drexel bottle 4 is connected with aspiration pump 5.
The maximum heating temperature of sulfur trioxide sampling gun 6 is not less than in 300 DEG C, and sampling gun 6 and is provided with metal filtering core 61, energy
Absorption of effective dust granules when avoiding low temperature to sulfur trioxide, sulfur trioxide sampling gun 6 is cold with first by connecting flexible pipe 8
Solidifying coil pipe 11 is connected, and the maximum heating temperature for connecting flexible pipe is not less than 280 DEG C, and sulfur trioxide can be prevented cold in connection flexible pipe
Solidifying, sulfur trioxide sampling gun includes probe tube and the heater strip being built in probe tube, and metal filtering core 61 is arranged on probe tube
Feed end, one end for connecting flexible pipe is arranged on the discharge end of probe tube by crossover sub, can improve the reliability of connection, prevents
Connect the loosening of flexible pipe.
Temperature in first thermostat water bath 1 and the second thermostat water bath 2 is all provided with being set to 60~65 DEG C, in ice bath pot 3
Temperature setting can ensure that the collection of sulfur trioxide total condensation, the first condenser coil 11 and the second condensate pans in flue gas into -2~0 DEG C
Pipe 21 is snakelike glass coil pipe, Stability Analysis of Structures, easy installation and removal, can prevent the first condenser coil and the second condenser coil
Damage, be conducive to sulfur trioxide to convey completely, drier 51 is provided with aspiration pump 5, can ensure that the security of aspiration pump.
Sampling system also includes pedestal and the shifting roller being arranged on pedestal, can realize the quick movement of sampling system,
Pedestal is provided with the first chassis, the second chassis and the 3rd chassis, and the first thermostat water bath is arranged on the first chassis, the second constant temperature
Water-bath is arranged on the second chassis, and ice bath pot is arranged on the 3rd chassis, and fixed sulfur trioxide sampling gun is additionally provided with pedestal
Fixed cover, sulfur trioxide sampling gun is arranged on fixed cover interior energy and prevents the damage of sulfur trioxide sampling gun, and prevents grey trifle in the world
Matter enters in sulfur trioxide sampling gun, and the 3rd chassis is provided with horizontal-extending plate, and horizontal-extending plate is provided with fixed Drexel bottle
Axle sleeve, can prevent the damage of Drexel bottle, and aspiration pump is arranged on the bottom of pedestal, can guarantee that the steady operation of aspiration pump, prevent outer
The interference on boundary, reduces the damage of aspiration pump.
Using preceding, the temperature of sulfur trioxide sampling gun 6 is first heated to 300 DEG C, the temperature control in the first thermostat water bath 1
System at 55 DEG C, temperature control in the second thermostat water bath 2 at 50 DEG C, the temperature control in ice bath pot 3 at 0 DEG C, then by three
Sulfur oxide sampling gun 6 is placed in flue gas, is set by being heated to sulfur trioxide sampling gun 6, can prevent particle in chilling process
Absorption of the dust to sulfur trioxide, the flue gas after sampling passes sequentially through the first condenser coil 11, in the first thermostat water bath 1
In the absorption bottle 7 entered after the second condenser coil 21 in two thermostat water baths 2 in ice bath pot 3, cigarette is ensured by isopropanol 71
Sulfur trioxide total condensation, collection, then drive aspiration pump 5 in gas, by the sulfur trioxide sampling processing in absorption bottle 7, and lead to
The hydrogen peroxide 41 crossed in Drexel bottle 4 washes away sulfur dioxide in flue gas, can improve the reliability of sulfur trioxide sampling, it is ensured that test number
According to accuracy.
In addition to above preferred embodiment, the present invention also has other implementation methods, and those skilled in the art can be according to this
Invention is variously modified and deforms, and without departing from spirit of the invention, all should belong to appended claims of the present invention and determine
The scope of justice.
Claims (6)
1. it is a kind of suitable for low concentration sulfur trioxide sampling sampling system, it is characterised in that：Including the first thermostat water bath
(1), the second thermostat water bath (2), ice bath pot (3), Drexel bottle (4) and aspiration pump (5), are provided with the first thermostat water bath (1)
It is provided with first condenser coil (11), the second thermostat water bath (2) in the second condenser coil (21), Drexel bottle (4) and is provided with and can wash
The hydrogen peroxide (41) of sulfur dioxide in flue gas is removed, being connected with heatable sulfur trioxide on one end of the first condenser coil (11) adopts
Sample rifle (6), the other end of the first condenser coil (11) is connected with one end of the second condenser coil (21), is provided with ice bath pot (3)
It is provided with the absorption bottle (7) being connected with the other end of the second condenser coil (21), absorption bottle (7) and can ensure that sulfur trioxide in flue gas
Total condensation, the isopropanol (71) collected, absorption bottle (7) are connected with Drexel bottle (4), and Drexel bottle (4) is connected with aspiration pump (5).
2. it is according to claim 1 it is a kind of suitable for low concentration sulfur trioxide sampling sampling system, it is characterised in that：Three
The maximum heating temperature of sulfur oxide sampling gun (6) is not less than in 300 DEG C, and sampling gun (6) and is provided with metal filtering core (61).
3. it is according to claim 2 it is a kind of suitable for low concentration sulfur trioxide sampling sampling system, it is characterised in that：Three
Sulfur oxide sampling gun (6) is connected by connecting flexible pipe (8) with the first condenser coil (11), connects the maximum heating temperature of flexible pipe not
Less than 280 DEG C.
4. it is according to claim 1 it is a kind of suitable for low concentration sulfur trioxide sampling sampling system, it is characterised in that：The
Temperature in one thermostat water bath (1) and the second thermostat water bath (2) is all provided with being set to 60~65 DEG C, the temperature in ice bath pot (3)
It is arranged to -2~0 DEG C.
5. it is according to claim 4 it is a kind of suitable for low concentration sulfur trioxide sampling sampling system, it is characterised in that：The
One condenser coil (11) and the second condenser coil (21) are snakelike glass coil pipe.
6. it is according to claim 1 it is a kind of suitable for low concentration sulfur trioxide sampling sampling system, it is characterised in that：Take out
Drier (51) is provided with air pump (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710049703.7A CN106813954A (en) | 2017-01-23 | 2017-01-23 | A kind of sampling system suitable for the sampling of low concentration sulfur trioxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710049703.7A CN106813954A (en) | 2017-01-23 | 2017-01-23 | A kind of sampling system suitable for the sampling of low concentration sulfur trioxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106813954A true CN106813954A (en) | 2017-06-09 |
Family
ID=59112176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710049703.7A Pending CN106813954A (en) | 2017-01-23 | 2017-01-23 | A kind of sampling system suitable for the sampling of low concentration sulfur trioxide |
Country Status (1)
| Country | Link |
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| CN (1) | CN106813954A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107621393A (en) * | 2017-10-12 | 2018-01-23 | 国网河北能源技术服务有限公司 | Sulfur trioxide sampling apparatus and its method of testing in a kind of flue gas |
| 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 |
| CN108871877A (en) * | 2018-04-03 | 2018-11-23 | 南京师范大学 | A kind of multistage temperature control acquisition condensable particulate matter device |
| CN111766341A (en) * | 2020-07-07 | 2020-10-13 | 西安热工研究院有限公司 | Correction method for sulfur trioxide concentration test in industrial waste gas |
| CN112162068A (en) * | 2020-11-10 | 2021-01-01 | 西安热工研究院有限公司 | Sulfur trioxide sampling test system and method for absorbing and removing sulfur dioxide interference by adopting isopropanol |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107621393A (en) * | 2017-10-12 | 2018-01-23 | 国网河北能源技术服务有限公司 | Sulfur trioxide sampling apparatus and its method of testing in a kind of flue gas |
| 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 |
| CN108871877A (en) * | 2018-04-03 | 2018-11-23 | 南京师范大学 | A kind of multistage temperature control acquisition condensable particulate matter device |
| CN108871877B (en) * | 2018-04-03 | 2021-08-10 | 南京师范大学 | Device for collecting condensable particles through multistage temperature control |
| CN111766341A (en) * | 2020-07-07 | 2020-10-13 | 西安热工研究院有限公司 | Correction method for sulfur trioxide concentration test in industrial waste gas |
| CN112162068A (en) * | 2020-11-10 | 2021-01-01 | 西安热工研究院有限公司 | Sulfur trioxide sampling test system and method for absorbing and removing sulfur dioxide interference by adopting isopropanol |
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Application publication date: 20170609 |