CN109991378A - A kind of detection method of CO in Air concentration - Google Patents
A kind of detection method of CO in Air concentration Download PDFInfo
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- CN109991378A CN109991378A CN201910386715.8A CN201910386715A CN109991378A CN 109991378 A CN109991378 A CN 109991378A CN 201910386715 A CN201910386715 A CN 201910386715A CN 109991378 A CN109991378 A CN 109991378A
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- carbon monoxide
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- 238000001514 detection method Methods 0.000 title claims abstract description 26
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 40
- 229910002091 carbon monoxide Inorganic materials 0.000 claims abstract description 40
- 238000006243 chemical reaction Methods 0.000 claims abstract description 17
- 230000000694 effects Effects 0.000 claims abstract description 13
- 239000003054 catalyst Substances 0.000 claims abstract description 11
- 239000000376 reactant Substances 0.000 claims abstract description 11
- 238000004817 gas chromatography Methods 0.000 claims abstract description 9
- 238000000926 separation method Methods 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 17
- 239000007789 gas Substances 0.000 claims description 10
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 8
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 5
- 239000001257 hydrogen Substances 0.000 claims description 5
- 229910052739 hydrogen Inorganic materials 0.000 claims description 5
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- 238000001179 sorption measurement Methods 0.000 claims description 3
- 238000007781 pre-processing Methods 0.000 claims 1
- 230000036541 health Effects 0.000 description 6
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 229960004424 carbon dioxide Drugs 0.000 description 2
- 229910002090 carbon oxide Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000005526 G1 to G0 transition Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000004451 qualitative analysis Methods 0.000 description 1
- 238000004445 quantitative analysis Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
- G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
- G01N33/004—CO or CO2
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0062—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display
- G01N33/0067—General constructional details of gas analysers, e.g. portable test equipment concerning the measuring method or the display, e.g. intermittent measurement or digital display by measuring the rate of variation of the concentration
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Food Science & Technology (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
Abstract
The invention discloses a kind of detection methods of CO in Air concentration, belong to air detection technical field, by choosing area to be tested, the air in the area to be tested are acquired within the first moment, air to be detected is obtained after being pre-processed；The carbon monoxide in the air to be detected is separated using gas chromatography；Carbon monoxide after separation is imported in reaction unit by gas pipeline, and obtains product with reactant reaction under the effect of the catalyst；The first concentration value of carbon monoxide is calculated according to the product；It repeats the above steps, obtains the second concentration value of carbon monoxide in the area to be tested in the second moment；According to first concentration value and second concentration value, deviation is obtained；The deviation is compared with predetermined deviation value, and testing result is obtained according to preset strategy, to reach guarantee detection quality, the authenticity of detection data is improved, reduces the technical effect that personnel detect pressure.
Description
Technical field
The present invention relates to air detection technical field, in particular to a kind of detection method of CO in Air concentration.
Background technique
Carbon monoxide is that the important dirt generated in most wide and most quantity pollutant and combustion process is distributed in atmosphere
Contaminate one of object.There is carbon monoxide to deposit in metallurgy, chemistry, graphite electrode manufacture and household fuel gas or coal stove, vehicle exhaust
?.CO main source in atmosphere is I. C. engine exhaust, the burning of fossil fuel followed by boiler.When carbon monoxide is in air
When middle content concn reaches certain value, if people's life for a long time or work, can cause damages to people's health, work as excessive concentration
When, or even understand causing death or explode.
Therefore, the carbonomonoxide concentration detected in atmosphere has very important significance, but currently used detection method
Since testing result is inaccurate, lead to safety accident occur, the health of people is made to be affected.
Summary of the invention
The present invention provides a kind of detection methods of CO in Air concentration, to solve in the prior art due to inspection
It is inaccurate to survey result, the technical issues of leading to safety accident occur, the health of people is made to be affected, has reached guarantee
Quality is detected, the real reliability of detection data is improved, reduces the technical effect that testing staff detects pressure.
The present invention provides a kind of detection methods of CO in Air concentration, which comprises step 1: choosing
Area to be tested acquires the air in the area to be tested within the first moment, and sky to be detected is obtained after being pre-processed
Gas；Step 2: being separated the carbon monoxide in the air to be detected using gas chromatography；Step 3: after separation
Carbon monoxide imported in reaction unit by gas pipeline, and given birth under the effect of the catalyst with reactant reaction
At object；Step 4: the first concentration value of carbon monoxide is calculated according to the product；Step 5: at the second moment, repeating above-mentioned step
Rapid 1-4 obtains the second concentration value of carbon monoxide in the area to be tested in the second moment；Step 6: dense according to described first
Angle value and second concentration value obtain deviation；Step 7: the deviation is compared with predetermined deviation value, and according to
Preset strategy obtains testing result.
Preferably, the catalyst uses nickel accelerant.
Preferably, the method also includes: when the deviation value is larger than a preset deviation value, obtain a difference, and according to
The difference obtains class information.
Preferably, the warning message of corresponding grade is sent according to the class information.
Preferably, the method also includes: when the deviation value is larger than a preset deviation value, in Xiang Suoshu area to be tested
Place carbon monoxide adsorption device.
Preferably, the preset standard value is 0.01%.
Preferably, the reactant uses hydrogen.
Said one or multiple technical solutions in the embodiment of the present invention at least have following one or more technology effects
Fruit:
A kind of detection method of CO in Air concentration provided in an embodiment of the present invention, which comprises step
1: choose area to be tested, the air in the area to be tested is acquired within the first moment, pretreatment after acquisition to
Detect air；Step 2: being separated the carbon monoxide in the air to be detected using gas chromatography；Step 3: will divide
From carbon monoxide later by gas pipeline import reaction unit in, and under the effect of the catalyst with reactant reaction,
Obtain product；Step 4: the first concentration value of carbon monoxide is calculated according to the product；Step 5: at the second moment, repeating
Above-mentioned steps 1-4 obtains the second concentration value of carbon monoxide in the area to be tested in the second moment；Step 6: according to described
First concentration value and second concentration value obtain deviation；Step 7: the deviation is compared with predetermined deviation value,
And testing result is obtained according to preset strategy.To solve in the prior art since testing result is inaccurate, cause to occur
Safety accident, the technical issues of making the health of people be affected, have reached guarantee detection quality, have improved detection data
Real reliability, reduce testing staff detect pressure technical effect.
The above description is only an overview of the technical scheme of the present invention, in order to better understand the technical means of the present invention,
And it can be implemented in accordance with the contents of the specification, and in order to allow above and other objects of the present invention, feature and advantage can
It is clearer and more comprehensible, the followings are specific embodiments of the present invention.
Detailed description of the invention
Fig. 1 is a kind of flow diagram of the detection method of CO in Air concentration in the embodiment of the present invention.
Specific embodiment
The embodiment of the invention provides a kind of detection methods of CO in Air concentration, to solve in the prior art
Since testing result is inaccurate, the technical issues of leading to safety accident occur, the health of people made to be affected.
Technical solution in the embodiment of the present invention, general thought are as follows:
A kind of detection method of CO in Air concentration provided in an embodiment of the present invention passes through step 1: choosing to be checked
Region is surveyed, the air in the area to be tested is acquired within the first moment, air to be detected is obtained after being pre-processed；Step
Rapid 2: being separated the carbon monoxide in the air to be detected using gas chromatography；Step 3: by the oxygen after separation
Change carbon to import in reaction unit by gas pipeline, and obtains product with reactant reaction under the effect of the catalyst；Step
Rapid 4: the first concentration value of carbon monoxide is calculated according to the product；Step 5: at the second moment, repeat the above steps 1-4,
Obtain the second concentration value of carbon monoxide in the area to be tested in the second moment；Step 6: according to first concentration value and
Second concentration value obtains deviation；Step 7: the deviation being compared with predetermined deviation value, and according to default plan
Slightly obtain testing result.To reach guarantee detection quality, the real reliability of detection data is improved, testing staff is reduced
Detect the technical effect of pressure.
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without making creative work, shall fall within the protection scope of the present invention.
Embodiment
Fig. 1 is a kind of detection method of CO in Air concentration in the embodiment of the present invention, as shown in Figure 1, the side
Method includes:
Step 1: choosing area to be tested, the air in the area to be tested is acquired within the first moment, is located in advance
Air to be detected is obtained after reason.
Specifically, area to be tested is to need to detect the space of carbon monoxide in atmosphere concentration, when starting detection,
Firstly the need of region to be detected determines according to actual conditions, the sky of certain capacity in the region is then acquired within first time
Gas obtains air to be detected after then being pre-processed to collected air.
Step 2: being separated the carbon monoxide in the air to be detected using gas chromatography.
Specifically, gas chromatography is to make the chromatography analysis method of mobile phase using gas.The sample quilt of vaporization
Carrier gas (mobile phase) is brought into chromatographic column, and the stationary phase in column is different from each component molecular force in sample, and each component is from color
Delivery time difference, component in column is composed to be separated from each other.Using identification appropriate and record system, production marks each component outflow color
Compose the time of column and the chromatogram of concentration.According to the appearance time and sequence shown in figure, qualitative analysis can be carried out to compound；
According to the height and size at peak, quantitative analysis can be carried out to compound.Therefore, above-mentioned gas-chromatography is used in this implementation
Method can be separated the carbon monoxide in air to be detected by chromatographic column
Step 3: the carbon monoxide after separation being imported in reaction unit by gas pipeline, and in the work of catalyst
With lower and reactant reaction, product is obtained.
Step 4: the first concentration value of carbon monoxide is calculated according to the product.
Further, the catalyst uses nickel accelerant.
Further, the reactant uses hydrogen.
Specifically, by after the carbon monoxide separation in air to be detected, further by the carbon monoxide after separation
It is imported in reaction unit by gas pipeline, and nickel accelerant is added as catalyst into reaction unit, hydrogen conduct is added
Reactant, then enables hydrogen and reaction of carbon monoxide under certain condition, generates CH4(methane) and water (H2O)。
Step 5: at the second moment, repeat the above steps 1-4, obtains an oxidation in the area to be tested in the second moment
Second concentration value of carbon.
Step 6: according to first concentration value and second concentration value, obtaining deviation.
Specifically, in order to further increase the accuracy of testing result, at another moment namely second
When moment, repeat the operating method in above-mentioned steps 1-4, then obtains at the second moment one in area to be tested
The concentration value of carbonoxide, and then the carbonomonoxide concentration that the carbonomonoxide concentration value that the second moment obtained is obtained with the first moment
Value is compared, and obtains deviation between the two.
Step 7: the deviation being compared with predetermined deviation value, and testing result is obtained according to preset strategy.
Further, the preset standard value is 0.01%.
Further, the method also includes: when the deviation value is larger than a preset deviation value, obtain a difference, and root
Class information is obtained according to the difference.
Further, the warning message of corresponding grade is sent according to the class information.
Further, the method also includes: when the deviation value is larger than a preset deviation value, Xiang Suoshu area to be tested
Interior placement carbon monoxide adsorption device.
Specifically, the inclined of the second moment carbonomonoxide concentration value and the first moment carbonomonoxide concentration value is calculated
After difference, which is compared with the 0.01% of predetermined deviation value, when the deviation being calculated is greater than 0.01%
When, that is, indicate that the carbon monoxide content in area to be tested at this time is exceeded, at this point, further according to the detected value being calculated and in advance
If value obtains difference between the two, the corresponding class information of the difference is further obtained.In other words, basis in this implementation
The exceeded degree of different carbon monoxide, takes corresponding counter-measure, that is, warning message corresponding to each exceeded grade
Severity is different, can take in light of the circumstances in order to which staff is after obtaining the information of testing result in this way
Corresponding measure.It further, can be by placing one into area to be tested when deviation is greater than the predetermined deviation value of setting
Carbonoxide adsorbs instrument, to achieve the purpose that the content for reducing carbon monoxide.
Said one or multiple technical solutions in the embodiment of the present invention at least have following one or more technology effects
Fruit:
A kind of detection method of CO in Air concentration provided in an embodiment of the present invention, which comprises step
1: choose area to be tested, the air in the area to be tested is acquired within the first moment, pretreatment after acquisition to
Detect air；Step 2: being separated the carbon monoxide in the air to be detected using gas chromatography；Step 3: will divide
From carbon monoxide later by gas pipeline import reaction unit in, and under the effect of the catalyst with reactant reaction,
Obtain product；Step 4: the first concentration value of carbon monoxide is calculated according to the product；Step 5: at the second moment, repeating
Above-mentioned steps 1-4 obtains the second concentration value of carbon monoxide in the area to be tested in the second moment；Step 6: according to described
First concentration value and second concentration value obtain deviation；Step 7: the deviation is compared with predetermined deviation value,
And testing result is obtained according to preset strategy.To solve in the prior art since testing result is inaccurate, cause to occur
Safety accident, the technical issues of making the health of people be affected, have reached guarantee detection quality, have improved detection data
Real reliability, reduce testing staff detect pressure technical effect.
Although preferred embodiments of the present invention have been described, it is created once a person skilled in the art knows basic
Property concept, then additional changes and modifications can be made to these embodiments.So it includes excellent that the following claims are intended to be interpreted as
It selects embodiment and falls into all change and modification of the scope of the invention.
Obviously, those skilled in the art can carry out various modification and variations without departing from this hair to the embodiment of the present invention
The spirit and scope of bright embodiment.In this way, if these modifications and variations of the embodiment of the present invention belong to the claims in the present invention
And its within the scope of equivalent technologies, then the present invention is also intended to include these modifications and variations.
Claims (7)
1. a kind of detection method of CO in Air concentration, which is characterized in that the described method includes:
Step 1: choosing area to be tested, the air in the area to be tested is acquired within the first moment, carries out pre-processing it
After obtain air to be detected；
Step 2: being separated the carbon monoxide in the air to be detected using gas chromatography；
Step 3: the carbon monoxide after separation being imported in reaction unit by gas pipeline, and under the effect of the catalyst
With reactant reaction, product is obtained；
Step 4: the first concentration value of carbon monoxide is calculated according to the product；
Step 5: at the second moment, repeat the above steps 1-4, carbon monoxide in the area to be tested in the second moment of acquisition
Second concentration value；
Step 6: according to first concentration value and second concentration value, obtaining deviation；
Step 7: the deviation being compared with predetermined deviation value, and testing result is obtained according to preset strategy.
2. the method as described in claim 1, which is characterized in that the catalyst uses nickel accelerant.
3. the method as described in claim 1, which is characterized in that the method also includes:
When the deviation value is larger than a preset deviation value, a difference is obtained, and class information is obtained according to the difference.
4. method as claimed in claim 3, which is characterized in that send the alarm signal of corresponding grade according to the class information
Breath.
5. the method as described in claim 1, which is characterized in that the method also includes:
When the deviation value is larger than a preset deviation value, carbon monoxide adsorption device is placed in Xiang Suoshu area to be tested.
6. the method as described in claim 1, which is characterized in that the preset standard value is 0.01%.
7. the method as described in claim 1, which is characterized in that the reactant uses hydrogen.
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| CN201910386715.8A CN109991378A (en) | 2019-05-10 | 2019-05-10 | A kind of detection method of CO in Air concentration |
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| CN201910386715.8A CN109991378A (en) | 2019-05-10 | 2019-05-10 | A kind of detection method of CO in Air concentration |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113049649A (en) * | 2019-12-27 | 2021-06-29 | 苏州五蕴明泰科技有限公司 | Method and device for detecting carbon monoxide gas concentration value of lead enterprise |
| CN113485494A (en) * | 2021-07-01 | 2021-10-08 | 安徽普冈电子材料有限公司 | Mixed acid process system for anode aluminum foil production |
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