CN108507998A - A kind of sulfur dioxide detection device and its detection method - Google Patents
A kind of sulfur dioxide detection device and its detection method Download PDFInfo
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- CN108507998A CN108507998A CN201810201475.5A CN201810201475A CN108507998A CN 108507998 A CN108507998 A CN 108507998A CN 201810201475 A CN201810201475 A CN 201810201475A CN 108507998 A CN108507998 A CN 108507998A
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- Prior art keywords
- sulfur dioxide
- reaction
- detection device
- reaction bed
- reaction chamber
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- RAHZWNYVWXNFOC-UHFFFAOYSA-N sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 title claims abstract description 156
- 238000001514 detection method Methods 0.000 title claims abstract description 89
- 230000037361 pathway Effects 0.000 claims abstract description 32
- 239000007788 liquid Substances 0.000 claims abstract description 24
- 239000007789 gas Substances 0.000 claims description 35
- 239000003153 chemical reaction reagent Substances 0.000 claims description 26
- 230000002572 peristaltic Effects 0.000 claims description 12
- KWYUFKZDYYNOTN-UHFFFAOYSA-M potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 9
- 238000001035 drying Methods 0.000 claims description 8
- 238000004020 luminiscence type Methods 0.000 claims description 8
- BAUYGSIQEAFULO-UHFFFAOYSA-L Iron(II) sulfate Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 6
- 239000011790 ferrous sulphate Substances 0.000 claims description 6
- 235000003891 ferrous sulphate Nutrition 0.000 claims description 6
- 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- HWYHZTIRURJOHG-UHFFFAOYSA-N Luminol Chemical compound O=C1NNC(=O)C2=C1C(N)=CC=C2 HWYHZTIRURJOHG-UHFFFAOYSA-N 0.000 claims description 5
- 239000005864 Sulphur Substances 0.000 claims description 5
- 230000000875 corresponding Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 230000003287 optical Effects 0.000 claims description 5
- NINIDFKCEFEMDL-UHFFFAOYSA-N sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000004364 calculation method Methods 0.000 claims description 4
- 230000005484 gravity Effects 0.000 claims description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 4
- 239000008367 deionised water Substances 0.000 claims description 3
- 239000003365 glass fiber Substances 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 239000004745 nonwoven fabric Substances 0.000 claims description 3
- 238000010926 purge Methods 0.000 claims description 3
- 239000004408 titanium dioxide Substances 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 claims 1
- 238000000605 extraction Methods 0.000 claims 1
- 229910052739 hydrogen Inorganic materials 0.000 claims 1
- 239000001257 hydrogen Substances 0.000 claims 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims 1
- 230000035945 sensitivity Effects 0.000 abstract description 9
- JCXJVPUVTGWSNB-UHFFFAOYSA-N nitrogen dioxide Chemical compound O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 description 10
- MHAJPDPJQMAIIY-UHFFFAOYSA-N hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 8
- 239000003570 air Substances 0.000 description 5
- CBENFWSGALASAD-UHFFFAOYSA-N ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 5
- 150000004763 sulfides Chemical class 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 239000012080 ambient air Substances 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 239000007791 liquid phase Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 241000790917 Dioxys <bee> Species 0.000 description 2
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitrogen oxide Substances O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 2
- 206010037660 Pyrexia Diseases 0.000 description 2
- TXKMVPPZCYKFAC-UHFFFAOYSA-N disulfur monoxide Inorganic materials O=S=S TXKMVPPZCYKFAC-UHFFFAOYSA-N 0.000 description 2
- 230000002708 enhancing Effects 0.000 description 2
- 239000003546 flue gas Substances 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052813 nitrogen oxide Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
- G01N21/76—Chemiluminescence; Bioluminescence
Abstract
The invention discloses a kind of sulfur dioxide detection device and its detection methods,Including protecgulum,Rear cover and it is protected from light cavity,The protecgulum is connected with the rear cover,And closed reaction chamber is formed between the two,The reaction chamber is equipped with reaction bed close to one end of the protecgulum,The reaction chamber is equipped with inlet channel and outlet passageway at the diameter both ends of its horizontal direction,The top of the reaction bed is equipped with and the first feed pathway for being connected outside the protecgulum,Second feed pathway,The bottom end of the reaction bed is equipped with and the liquid outlet channel that is connected outside the protecgulum,The present invention solves the technological deficiency of sulfur dioxide detection device in the prior art,Realize the accuracy of detection and reliability for improving sulfur dioxide detection device,It provides a kind of with higher sensitivity and stability,It is simple in structure,It is easy to carry,Testing result accuracy high sulfur dioxide detection device and its detection method.
Description
Technical field
The present invention relates to a kind of sulfur dioxide detection devices, and in particular to a kind of sulfur dioxide detection device and its detection side
Method.
Background technology
Sulfur dioxide is that quantity is maximum, distribution is most wide, influences the gas pollutant of human life's property most serious in air
One of and nitrogen oxides, carbon monoxide, hydrocarbon and particulate matter be considered as five big pollutant of air together, wherein two
Sulfur oxide is the therein first big pollutant, is an important sources of acid rain, has to health and environmental ecology larger
Harm.Sulfur dioxide in air mostlys come from artificial pollution, including fossil-fuel-fired and sulphur-containing substance industry life
Production process, therefore the sulfur dioxide in Accurate Determining ambient air judges atmospheric pollution level for understanding atmosphere pollution mechanism,
It determines pollution source, carries out air quality early warning, and help formulates rational urban planning and construction etc. and is all of great significance.
Sulfur dioxide detection method in the prior art has some disadvantages, and either sensitivity degree is not high or detection is primary required
Overlong time, or interfered by remaining sulfide gas, lead to, detection knot difficult to low-concentration sulfur dioxide gas detection
The poor reliability of fruit.
Invention content
In view of the deficienciess of the prior art, the technical problem to be solved by the present invention is to solve dioxy in the prior art
Change the technological deficiency of sulphur detection device, realizes the accuracy of detection and reliability for improving sulfur dioxide detection device, a kind of tool is provided
Have higher sensitivity and stability, the sulfur dioxide detection device that simple in structure, easy to carry, testing result accuracy is high and its
Detection method.
In order to solve the above technical problems, the technical solution used in the present invention is：A kind of sulfur dioxide detection device, including
Protecgulum, rear cover and it is protected from light cavity, the protecgulum is connected with the rear cover and forms closed reaction chamber between the two, described
Reaction chamber is equipped with reaction bed close to one end of the protecgulum, and the reaction chamber is logical equipped with air inlet at the diameter both ends of its horizontal direction
Road and outlet passageway, the top of the reaction bed be equipped with be connected outside the protecgulum the first feed pathway, the second feed liquor
Channel, the bottom end of the reaction bed be equipped with the liquid outlet channel that is connected outside the protecgulum, the rear cover is close to the reaction
One end of chamber is equipped with light inlet window, reaction bed center described in the light transmission window center face, is kept away described in the light inlet window connection
Optical cavity body, described be protected from light in cavity are equipped with photoelectric sensor.
Above-mentioned sulfur dioxide detection device, first feed pathway, the second feed pathway, liquid outlet channel are vertical at
Reaction bed end face.
Above-mentioned sulfur dioxide detection device, the reaction bed are disposed vertically in the bottom of reaction chamber, the reaction bed two
Side is equipped with groove and the reaction bed is fixed in filling elastic material.
Above-mentioned sulfur dioxide detection device, the reaction bed are glass fiber filter paper or PP non-woven fabrics.
Above-mentioned sulfur dioxide detection device, the light inlet window are pure quartz glass.
Above-mentioned sulfur dioxide detection device, the light inlet window are the pure quartz glass of 1mm thickness.
Above-mentioned sulfur dioxide detection device, the inside cavity that is protected from light are provided with drier.
Above-mentioned sulfur dioxide detection device, the drier, which is located at, is protected from light the sky formed between cavity and photoelectric sensor
Intracavitary.
Above-mentioned sulfur dioxide detection method, includes the following steps：
Step 1: connecting a ferrous sulfate column in inlet channel, the filter of 10um is connected after column；
Step 2: connecting vacuum pump in outlet passageway, under the action of vacuum pump, gas to be detected enters instead from inlet channel
It answers in chamber, and is drawn to outside reaction chamber from outlet passageway；
Step 3: the first feed pathway, the second feed pathway connect peristaltic pump, under the action of peristaltic pump, hydrogen peroxide agent
It is entered respectively from the first feed pathway, the second feed pathway in reaction chamber and in gravity with the luminol reagent of potassium hydroxide
It is uniformly diffused on reaction bed under effect and completes to mix, the mixing on sulfur dioxide gas and reaction bed in gas to be detected
Surface chemistry luminescence-producing reaction occurs for reagent；Meanwhile liquid outlet channel is connected with peristaltic pump or vacuum pump, in peristaltic pump or vacuum pump
Under effect, the reagent that reaction bed lower end was reacted is drawn to by liquid outlet channel outside reaction chamber；
Step 4: the optical signal that photoelectric sensor detection hydrophilic membrane surfaces chemiluminescence reaction generates, dense to export sulfur dioxide
Corresponding electric signal is spent, electric signal is converted to sulfur dioxide concentration numerical value after computer calculation processing；
Step 5: after detection, reagent is changed into deionized water, logical liquid cleans reaction bed in 10 minutes or so, then
Stop leading to liquid；It is 5 minutes to carrying out purging drying, drying time inside reaction bed and reaction chamber to be passed through dry gas.
The advantages of sulfur dioxide detection device and its detection method of the present invention is：
1, sulfur dioxide detection device and its detection method, photoelectric sensor can accurately detect the concentration of sulfur dioxide,
And there is higher sensitivity and stability；Meanwhile sulfur dioxide detection device is based on liquid phase surface chemistry principle of luminosity,
The concentration that the light that surface chemistry luminescence-producing reaction generates is detected sulfur dioxide occurs with reagent by detecting sulfur dioxide, is examining
Survey during only sulfur dioxide, nitrogen dioxide, ozone can with corresponding reagent occur surface chemistry luminescence-producing reaction, therefore
It needs allowing detected gas by a ferrous sulfate column when detection, to eliminate nitrogen dioxide and ozone gas therein,
Remaining sulfide will not have an impact measurement result, so as to more accurately detect the concentration of sulfur dioxide.
2, sulfur dioxide detection device and its detection method, reaction bed provide area larger gas liquid reaction face, enhance
The sensitivity of detection and stability；Drier, which may insure to be protected from light, is in drying regime in cavity, prevent in detection process by
The side for causing cavity temperature to increase in the fever of photoelectric sensor, and being located at cavity in light inlet window generates water mist, influences to detect
Stability.
3, sulfur dioxide detection device and its detection method, improve response speed and the sensitivity of detection, while also protecting
The stability of detection is demonstrate,proved；Concentration of SO 2 gas inspection simple in structure, convenient to carry out, can be used under different occasions
It surveys, the sulfur dioxide gas real time on-line monitoring being particularly suitable in the gaseous samples such as ambient air, flue gas emission.
4, sulfur dioxide detection device and its detection method are very good to the selectivity of sulfur dioxide；Also, remove titanium dioxide
Outside sulphur gas, remaining sulfide will not have an impact measurement result, therefore can more accurately detect sulfur dioxide gas
The concentration of body.
Description of the drawings
Fig. 1 is structure of the invention sectional view；
Fig. 2 is front cover portion structural schematic diagram of the present invention.
Specific implementation mode
With reference to specific embodiment, invention is further described in detail：
As shown in Figure 1, 2, a kind of sulfur dioxide detection device, including protecgulum 1, rear cover 8 and it is protected from light cavity 10,1 He of the protecgulum
The rear cover 8 is connected and forms closed reaction chamber 4 between the two, and the reaction chamber 4 is set close to one end of the protecgulum 1
There is reaction bed 5, the reaction chamber 4 is equipped with inlet channel 13 and outlet passageway 14 at the diameter both ends of its horizontal direction, described anti-
The first feed pathway 2, the second feed pathway 3 for answering the top of bed 5 to be equipped with and be connected outside the protecgulum 1, the reaction bed 5
Bottom end be equipped with and be equipped with close to one end of the reaction chamber 4 with the liquid outlet channel 6 that is connected outside the protecgulum 1, the rear cover 8
Light inlet window 9, the light inlet window 9 connect protecgulum 1 and rear cover 8 by fixing buckle 7, reaction bed 5 described in 9 center face of the light inlet window
Center, the light inlet window 9 connect it is described be protected from light cavity 10, described be protected from light in cavity 10 is equipped with photoelectric sensor 12.
First feed pathway 2, the second feed pathway 3, liquid outlet channel 6 are vertical at 5 end face of reaction bed.
The reaction bed 5 is disposed vertically in the bottom of reaction chamber 4, and 5 both sides of the reaction bed are equipped with groove and filling elasticity
The reaction bed 5 is fixed in material 15.
The reaction bed 5 is glass fiber filter paper or PP non-woven fabrics.
The light inlet window 9 is pure quartz glass.
The light inlet window 9 is the pure quartz glass of 1mm thickness.
The cavity 10 that is protected from light is internally provided with drier 11.
The drier 11, which is located at, to be protected from light in the cavity formed between cavity 10 and photoelectric sensor 12.
Specifically, the present embodiment sulfur dioxide detection device is provided with reaction bed 5 in reaction chamber 4, the first feed liquor is logical
Reagent can be transported in reaction chamber 4 by road 2 and the second feed pathway 3, and reagent under the effect of gravity can be in reaction bed 5
Upper Quick uniform is mixed and is spread apart, and gas to be detected is delivered in reaction chamber 4 by inlet channel 13, gas to be detected
In sulfur dioxide will occur surface chemistry luminescence-producing reaction with mix reagent, and photoelectric sensor 12 will detect optical signal and convert
For electric signal output, the electric signal that photoelectric sensor 12 exports passes through, and sulfur dioxide concentration can be converted to after calculation processing
Numerical value.Photoelectric sensor 12 in the present embodiment can accurately detect the concentration of sulfur dioxide, and have higher spirit
Sensitivity and stability；Meanwhile the present embodiment sulfur dioxide detection device is based on liquid phase surface chemistry principle of luminosity, passes through detection
The concentration that the light that surface chemistry luminescence-producing reaction generates is detected sulfur dioxide occurs with reagent for sulfur dioxide, in detection process
Only with corresponding reagent surface chemistry luminescence-producing reaction can occur for sulfur dioxide, nitrogen dioxide, ozone, therefore need when detecting
Detected gas to be allowed by a ferrous sulfate column, to eliminate nitrogen dioxide and ozone gas therein, remaining sulfide
Measurement result will not be had an impact, so as to more accurately detect the concentration of sulfur dioxide.
Further, the present embodiment sulfur dioxide detection device is using the first feed pathway 2, the second feed pathway 3, dioxy
Change hydrogen peroxide needed for sulphur detection architecture and alkaline luminol reagent passes through independent first feed pathway 2, second respectively
Feed pathway 3 enters reaction chamber 4, reaches the reaction bed 5 of reaction chamber 4 bottom, by the characteristic of 5 used material of reaction bed, two
Kind reagent rapidly and uniformly mixes on reaction bed 5 and diffuses to entire reaction bed 5 rapidly, provides area larger gas liquid reaction
Face enhances sensitivity and the stability of detection.Preferably, alkaline luminol reagent is entered by the first feed pathway 2 and is reacted
Chamber 4, hydrogen peroxide agent enter reaction chamber 4 by the second feed pathway 3.Reaction bed 5, reaction bed are firmly fixed for convenience
5 it is vertical place, 4 bottom of reaction chamber is equipped with groove in 5 both sides of reaction bed, using corrosion resistant elastic material 15 to reaction bed 5 into
Row is fixed, it is ensured that reaction bed 5 is tightly attached to reaction chamber bottom and prevents since the minute bubbles of reagent flowing and feed pathway are to reaction
Bed 5 generates impact and reaction bed 5 is made to generate gap with 4 bottom of reaction chamber.
Further, it in order to improve the stability of the present embodiment sulfur dioxide detection device, is provided in the present embodiment
It is protected from light cavity 10, the photoelectric sensor 12 for detecting chemiluminescence signal, which is placed on, to be protected from light in cavity 10, is protected from light in cavity 10
Also be placed with drier 11, drier 11, which may insure to be protected from light in cavity 10, is in drying regime, prevent in detection process by
The side for causing 10 temperature of cavity to increase in the fever of photoelectric sensor 12, and being located at cavity 10 in light inlet window 9 generates water mist, shadow
Ring the stability of detection.
A kind of detection method of sulfur dioxide detection device, includes the following steps：
Step 1: connecting a ferrous sulfate column in inlet channel 13, the filter of 10um is connected after column；
Step 2: connecting vacuum pump in outlet passageway 14, under the action of vacuum pump, gas to be detected enters from inlet channel 13
It is drawn to outside reaction chamber 4 into reaction chamber 4, and from outlet passageway 13；
Step 3: the first feed pathway 2, the second feed pathway 3 connect peristaltic pump, and under the action of peristaltic pump, hydrogen peroxide examination
The luminol reagent of agent and potassium hydroxide entered in reaction chamber 4 from the first feed pathway 2, the second feed pathway 3 respectively and
It is uniformly diffused on reaction bed 5 under the action of gravity and completes to mix, the sulfur dioxide gas in gas to be detected and reaction bed 5
On mix reagent occur surface chemistry luminescence-producing reaction；Meanwhile liquid outlet channel 6 is connected with peristaltic pump or vacuum pump, in peristaltic pump
Or under the action of vacuum pump, the reagent that 5 lower end of reaction bed was reacted is drawn to by liquid outlet channel 6 outside reaction chamber 4；
Step 4: photoelectric sensor 12 detects the optical signal that hydrophilic membrane surfaces chemiluminescence reaction generates, to export sulfur dioxide
The corresponding electric signal of concentration, electric signal are converted to sulfur dioxide concentration numerical value after computer calculation processing；
Step 5: after detection, reagent is changed into deionized water, logical liquid cleans reaction bed 5 in 10 minutes or so, then
Stop leading to liquid；It is 5 minutes to carrying out purging drying, drying time inside reaction bed 5 and reaction chamber 4 to be passed through dry gas.
Sulfur dioxide detection device and its detection method provided by the invention, by being based on the luminous original of liquid phase surface chemistry
Reason, sulfur dioxide can effectively reinforce gas liquid reaction after entering in reaction chamber 4, while detect gas by photoelectric sensor 12
The light that liquid reaction generates greatly improves response speed and the sensitivity of detection to obtain the concentration of sulfur dioxide, while
It ensure that the stability of detection；In addition, reagent more Quick uniform can be mixed and be spread apart by reaction bed 5, it is more advantageous to
Sulfur dioxide carries out abundant gas liquid reaction with reagent, improves the accuracy of detection and reliability of sulfur dioxide detection device.In addition, two
The structure of sulfur oxide detection device is simply carried with outgoing, for the concentration of SO 2 gas detection under different occasions, especially
Sulfur dioxide gas real time on-line monitoring suitable for the gaseous samples such as ambient air, flue gas emission.The detection device and its
Detection method can generate the nitrogen dioxide of interference to detection and ozone gas is filtered by the effect of the ferrous sulfate column of front end
It removes, therefore sulfur dioxide detection device provided by the invention and its detection method are very good to the selectivity of sulfur dioxide；Also,
Except sulfur dioxide gas is external, remaining sulfide will not have an impact measurement result, therefore sulfur dioxide provided by the invention
Detection device and its detection method can more be shown in the concentration for accurately detecting sulfur dioxide gas.
Certainly, above description is not limitation of the present invention, and the present invention is also not limited to the example above, the art
Those of ordinary skill, the present invention essential scope in, variation, change, addition or the replacement made, should all belong to the present invention
Protection domain.
Claims (9)
1. a kind of sulfur dioxide detection device, it is characterised in that：Including protecgulum（1）, rear cover（8）Be protected from light cavity（10）, described
Protecgulum（1）With the rear cover（8）It is connected and forms closed reaction chamber between the two（4）, the reaction chamber（4）Close to institute
State protecgulum（1）One end be equipped with reaction bed（5）, the reaction chamber（4）It is equipped with inlet channel at the diameter both ends of its horizontal direction
（13）And outlet passageway（14）, the reaction bed（5）Top be equipped with and the protecgulum（1）The first feed liquor that outside is connected is logical
Road（2）, the second feed pathway（3）, the reaction bed（5）Bottom end be equipped with and the protecgulum（1）It is logical that outside was connected goes out liquid
Road（6）, the rear cover（8）Close to the reaction chamber（4）One end be equipped with light inlet window（9）, the light inlet window（9）Center face institute
State reaction bed（5）Center, the light inlet window（9）Cavity is protected from light described in connection（10）, described to be protected from light cavity（10）Inside it is equipped with
Photoelectric sensor（12）.
2. sulfur dioxide detection device according to claim 1, it is characterised in that：First feed pathway（2）, second
Feed pathway（3）, liquid outlet channel（6）It is vertical at reaction bed（5）End face.
3. sulfur dioxide detection device according to claim 2, it is characterised in that：The reaction bed（5）Be disposed vertically in
Reaction chamber（4）Bottom, the reaction bed（5）Both sides are equipped with groove and filling elastic material（15）To the reaction bed（5）Into
Row is fixed.
4. sulfur dioxide detection device according to claim 3, it is characterised in that：The reaction bed（5）For glass fibre
Filter paper or PP non-woven fabrics.
5. sulfur dioxide detection device according to claim 4, it is characterised in that：The light inlet window（9）For high purity quartz
Glass.
6. sulfur dioxide detection device according to claim 5, it is characterised in that：The light inlet window（9）For 1mm thickness
Pure quartz glass.
7. sulfur dioxide detection device according to claim 6, it is characterised in that：It is described to be protected from light cavity（10）Inside setting
There is drier（11）.
8. sulfur dioxide detection device according to claim 7, it is characterised in that：The drier（11）Positioned at being protected from light chamber
Body（10）With photoelectric sensor（12）Between in the cavity that is formed.
9. a kind of detection method according to claims 1-8, it is characterised in that：Include the following steps：
Step 1: in inlet channel（13）A ferrous sulfate column is connected, the filter of 10um is connected after column；
Step 2: in outlet passageway（14）Vacuum pump is connected, under the action of vacuum pump, gas to be detected is from inlet channel（13）
Enter reaction chamber（4）In, and from outlet passageway（13）It is drawn to reaction chamber（4）Outside；
Step 3: the first feed pathway（2）, the second feed pathway（3）Connect peristaltic pump, under the action of peristaltic pump, peroxidating
The luminol reagent of hydrogen reagent and potassium hydroxide is respectively from the first feed pathway（2）, the second feed pathway（3）Enter reaction chamber
（4）In and be uniformly diffused into reaction bed under gravity（5）It goes up and completes to mix, the sulfur dioxide gas in gas to be detected
Body and reaction bed（5）On mix reagent occur surface chemistry luminescence-producing reaction；Meanwhile liquid outlet channel（6）Be connected with peristaltic pump or
Vacuum pump, under the action of peristaltic pump or vacuum pump, reaction bed（5）The reagent that lower end was reacted passes through liquid outlet channel（6）Extraction
To reaction chamber（4）Outside；
Step 4: photoelectric sensor（12）The optical signal that hydrophilic membrane surfaces chemiluminescence reaction generates is detected, to export titanium dioxide
The corresponding electric signal of sulphur concentration, electric signal are converted to sulfur dioxide concentration numerical value after computer calculation processing；
Step 5: after detection, reagent is changed into deionized water, lead to liquid 10 minutes or so to reaction bed（5）It is cleaned, so
Stop leading to liquid afterwards；Dry gas is passed through to reaction bed（5）And reaction chamber（4）Inside carries out purging drying, and drying time is 5 points
Clock.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810201475.5A CN108507998A (en) | 2018-03-12 | 2018-03-12 | A kind of sulfur dioxide detection device and its detection method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810201475.5A CN108507998A (en) | 2018-03-12 | 2018-03-12 | A kind of sulfur dioxide detection device and its detection method |
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| Publication Number | Publication Date |
|---|---|
| CN108507998A true CN108507998A (en) | 2018-09-07 |
Family
ID=63377406
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810201475.5A Pending CN108507998A (en) | 2018-03-12 | 2018-03-12 | A kind of sulfur dioxide detection device and its detection method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110006876A (en) * | 2019-04-24 | 2019-07-12 | 四川轻化工大学 | A kind of device for testing carbon dioxide gas and detection method |
| CN111693516A (en) * | 2020-05-07 | 2020-09-22 | 四川轻化工大学 | Gas-liquid phase electrochemical luminescence detection device and detection method |
| CN111693514A (en) * | 2020-05-07 | 2020-09-22 | 四川轻化工大学 | Online detection device and method utilizing online liquid-gas conversion |
-
2018
- 2018-03-12 CN CN201810201475.5A patent/CN108507998A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110006876A (en) * | 2019-04-24 | 2019-07-12 | 四川轻化工大学 | A kind of device for testing carbon dioxide gas and detection method |
| CN110006876B (en) * | 2019-04-24 | 2021-07-27 | 四川轻化工大学 | Carbon dioxide gas detection device and detection method |
| CN111693516A (en) * | 2020-05-07 | 2020-09-22 | 四川轻化工大学 | Gas-liquid phase electrochemical luminescence detection device and detection method |
| CN111693514A (en) * | 2020-05-07 | 2020-09-22 | 四川轻化工大学 | Online detection device and method utilizing online liquid-gas conversion |
| CN111693514B (en) * | 2020-05-07 | 2022-07-05 | 四川轻化工大学 | Online detection device and method utilizing online liquid-gas conversion |
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Application publication date: 20180907 |