CN112986364B - Cross interference suppression method for coal spontaneous combustion flag gas detection - Google Patents
Cross interference suppression method for coal spontaneous combustion flag gas detection Download PDFInfo
- Publication number
- CN112986364B CN112986364B CN202110172300.8A CN202110172300A CN112986364B CN 112986364 B CN112986364 B CN 112986364B CN 202110172300 A CN202110172300 A CN 202110172300A CN 112986364 B CN112986364 B CN 112986364B
- Authority
- CN
- China
- Prior art keywords
- gas
- module
- carbon monoxide
- ethylene
- acetylene
- 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.)
- Active
Links
- 239000003245 coal Substances 0.000 title claims abstract description 47
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 23
- 230000002269 spontaneous effect Effects 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000001514 detection method Methods 0.000 title claims abstract description 18
- 230000001629 suppression Effects 0.000 title claims abstract description 9
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 76
- 229910002091 carbon monoxide Inorganic materials 0.000 claims abstract description 76
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims abstract description 74
- 239000005977 Ethylene Substances 0.000 claims abstract description 74
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 claims abstract description 73
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 claims abstract description 73
- 238000005259 measurement Methods 0.000 claims abstract description 21
- 238000004364 calculation method Methods 0.000 claims abstract description 18
- 238000000835 electrochemical detection Methods 0.000 claims abstract description 11
- 238000012360 testing method Methods 0.000 claims description 10
- 238000005070 sampling Methods 0.000 claims description 3
- 230000002401 inhibitory effect Effects 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 abstract description 9
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 84
- 230000002829 reductive effect Effects 0.000 description 3
- 230000000670 limiting effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/416—Systems
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
- G06F17/10—Complex mathematical operations
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Theoretical Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mathematical Physics (AREA)
- Data Mining & Analysis (AREA)
- Health & Medical Sciences (AREA)
- Pathology (AREA)
- Mathematical Optimization (AREA)
- Immunology (AREA)
- Biochemistry (AREA)
- Analytical Chemistry (AREA)
- Algebra (AREA)
- Computational Mathematics (AREA)
- Electrochemistry (AREA)
- Mathematical Analysis (AREA)
- General Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Pure & Applied Mathematics (AREA)
- Databases & Information Systems (AREA)
- Software Systems (AREA)
- General Engineering & Computer Science (AREA)
- Molecular Biology (AREA)
- Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
The invention relates to a cross interference suppression method for coal spontaneous combustion marking gas detection, and belongs to the technical field of coal mines. The method comprises the following steps: through carrying out cross interference suppression algorithm calculation on concentration values of carbon monoxide, ethylene and acetylene gas measured by an electrochemical principle sensor, measurement errors brought by cross interference to the sensor are eliminated, and accurate measurement of coal spontaneous combustion marking gas is realized. The invention can eliminate the cross interference problem of carbon monoxide, ethylene and acetylene gas in the electrochemical detection technology, improve the accuracy of carbon monoxide, ethylene and acetylene gas detection, prevent the problems of on-line monitoring false alarm, false omission and the like, ensure the accuracy and reliability of monitoring data of the natural ignition degree of scientific judgment and early warning coal, greatly improve the natural ignition scientific prejudgment level of the coal mine, reduce the coal resource loss of the coal mine and ensure the safe production of the coal mine and the life safety of workers. Has obvious practicability and innovation.
Description
Technical Field
The invention belongs to the technical field of coal mines, and relates to a method for detecting cross interference and restraining coal spontaneous combustion flag gas.
Background
The three stages of spontaneous combustion and ignition of coal are affected by the types of coal, the types of coal are different, and the selection of the marking gas in each stage is different, but basically the marking gas is selected from three gases of carbon monoxide, ethylene and acetylene, so that the three gases need to be monitored to accurately judge the spontaneous combustion and ignition state of the coal. At present, most coal mine enterprises adopt manual gas taking or beam pipe systems to convey goaf gas to a ground monitoring room, and chromatograph is used for quantitatively analyzing gas components, but the resolution of the chromatograph is 100ppm, so that gas concentration detection within 100ppm cannot be realized, and early detection of spontaneous combustion of coal is not facilitated. The current electrochemical detection technology has realized the resolution ratio of 1ppm of carbon monoxide, ethylene and acetylene, can be used for the development of an intrinsic safety type sensor of a coal mine, and realizes the real-time measurement of spontaneous combustion flag gas of coal in the coal mine.
Some manufacturers currently develop ethylene or acetylene sensors that use electrochemical principles, but do not address the related cross-interference problem. The existing electrochemical detection principle and technology realize the detection of the resolution of 1ppm of carbon monoxide, ethylene and acetylene gas, but do not study the problem of cross interference of the carbon monoxide, ethylene and acetylene gas objectively existing in the electrochemical detection principle, and the detection data and actual conditions have large differences, so that the accuracy and sensitivity of spontaneous combustion prediction of coal are reduced, and the scientificity of making a fire prevention and extinguishment decision by a user is influenced.
In order to solve the problem of cross interference of carbon monoxide, ethylene and acetylene gas existing objectively in an electrochemical detection principle, a cross interference suppression method is needed to eliminate the problem of cross interference, improve the accuracy of carbon monoxide, ethylene and acetylene gas detection, prevent the problems of on-line monitoring false alarm, missing alarm and the like, ensure the accuracy and reliability of monitoring data for scientific judgment and early warning of spontaneous combustion and ignition degree of coal, greatly improve the natural ignition scientific prediction level of coal mine, reduce coal resource loss of coal mine and ensure the safe production of coal mine and the life safety of workers.
Disclosure of Invention
In view of the above, the present invention aims to provide a method for suppressing cross interference in the detection of a coal spontaneous combustion flag gas, which is capable of accurately measuring the concentration of carbon monoxide, ethylene and acetylene gas in the range of 0 to 200ppm in order to more accurately determine the spontaneous combustion state of coal, while the electrochemical detection principle can realize the gas concentration measurement with the resolution of 1ppm, but has the problem of cross interference, and seriously affects the accuracy and the reliability of the detection result. The invention provides a method for suppressing cross interference of coal spontaneous combustion marking gas detection, which can eliminate the problem of cross interference of carbon monoxide, ethylene and acetylene gas existing in an electrochemical detection technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the method for inhibiting cross interference of coal spontaneous combustion flag gas detection comprises the following steps: through carrying out cross interference suppression algorithm calculation on concentration values of carbon monoxide, ethylene and acetylene gas measured by an electrochemical principle sensor, measurement errors brought by cross interference to the sensor are eliminated, and accurate measurement of coal spontaneous combustion marking gas is realized.
Optionally, the method specifically includes the following steps:
s1: the method comprises the steps of designing a carbon monoxide module, an ethylene module and an acetylene module by adopting a carbon monoxide sensitive element, an ethylene sensitive element and an acetylene sensitive element based on an electrochemical detection principle, wherein the three modules realize the measurement of the concentration of carbon monoxide gas, the concentration of ethylene gas and the concentration of acetylene gas in the same gas sample;
s2: determining a cross influence coefficient alpha of acetylene gas on the measured value of the ethylene module, determining a cross influence coefficient beta of the acetylene gas on the measured value of the carbon monoxide module, and determining a cross influence coefficient gamma of the ethylene gas on the measured value of the carbon monoxide module;
s3: the method comprises the steps of sampling and calculating a gas sample to be measured by a carbon monoxide module, an ethylene module and an acetylene module, measuring the carbon monoxide module to obtain an initial value A0 of carbon monoxide gas concentration, measuring the ethylene module to obtain an initial value B0 of ethylene gas concentration, and measuring the acetylene module to obtain an initial value C0 of acetylene gas concentration;
s4: calculating an actual concentration value C1 of acetylene gas to be measured, an actual concentration value B1 of ethylene gas and an actual concentration value A1 of gas sample carbon monoxide gas;
s5: and repeating the steps S3 and S4, continuously measuring the actual concentration values of the carbon monoxide, the ethylene and the acetylene in the gas sample to be measured, and updating the display output.
Optionally, in S4, the calculation formula of the actual concentration value C1 of the acetylene gas is as follows:
C1＝C0 (1)
the actual concentration value B1 of ethylene gas is calculated as follows:
B1＝B0-α×C1 (2)
the actual concentration value A1 of the carbon monoxide gas is calculated as follows:
A1＝A0-β×C1-γ×B1 (3)。
optionally, in S2, the determining the cross influence coefficients α, β, γ in step S2 includes:
s21: determining the concentration of a cross influence coefficient test standard sample gas; the detection ranges of the carbon monoxide module, the ethylene module and the acetylene module are respectively L0, L1 and L2, the concentrations of standard gas samples used for the cross influence coefficient test are respectively N0, N1 and N2, and then N0, N1 and N2 meet the requirements of formulas (4), (5) and (6):
0.40×L0≤N0≤0.60×L0 (4)
0.40×L1≤N1≤0.60×L1 (5)
0.40×L2≤N2≤0.60×L2 (6)
s22: calibrating the accuracy of the carbon monoxide module, the ethylene module and the acetylene module;
calibrating the measured value of the carbon monoxide module by using a carbon monoxide standard gas with the verified concentration of N0 and the uncertainty of less than 3 percent, and calibrating the measured value to be N0;
calibrating the measured value of the ethylene module by using an ethylene standard gas with the concentration of N1 and the uncertainty of less than 3 percent, and calibrating the measured value to be N1;
calibrating the measured value of the acetylene module by using an acetylene standard gas with the concentration of N2 and the uncertainty of less than 3 percent, and calibrating the measured value to be N2;
s23: and determining a calculation formula of the cross influence coefficients alpha, beta and gamma.
Optionally, the calculation formula for determining the cross influence coefficient α is:
testing an ethylene module by using an acetylene standard gas with the concentration of N2 and the uncertainty of less than 3 percent, wherein the measured value of the ethylene module is N3, and the cross influence coefficient alpha is calculated according to the formula
α＝N3÷N2 (7)。
Optionally, the calculation formula for determining the cross influence coefficient β is:
testing a carbon monoxide module by using acetylene standard gas with the verified concentration of N2 and the uncertainty of less than 3%, wherein the measured value of the carbon monoxide module is N4, and the calculation formula of the cross influence coefficient beta is as follows
β＝N4÷N2 (8)。
Optionally, the calculation formula for determining the cross influence coefficient γ is:
testing a carbon monoxide module by using ethylene standard gas with the verified concentration of N1 and the uncertainty of less than 3%, wherein the measured value of the carbon monoxide module is N5, and the calculation formula of the cross influence coefficient gamma is as follows
γ＝N5÷N1 (9)。
The invention has the beneficial effects that: the method can eliminate the cross interference problem of carbon monoxide, ethylene and acetylene gas in the electrochemical detection technology, improve the accuracy of carbon monoxide, ethylene and acetylene gas detection, prevent the problems of false alarm, missing alarm and the like in the on-line monitoring, ensure the accuracy and reliability of monitoring data of the spontaneous combustion and ignition degree of scientific judgment and early warning coal, greatly improve the natural ignition scientific prejudgment level of the coal mine, reduce the coal resource loss of the coal mine and ensure the safe production of the coal mine and the life safety of workers. Has obvious practicability and innovation.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objects and other advantages of the invention may be realized and obtained by means of the instrumentalities and combinations particularly pointed out in the specification.
Drawings
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in the following preferred detail with reference to the accompanying drawings, in which:
fig. 1 is a schematic diagram of the present invention.
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention. It should be noted that the illustrations provided in the following embodiments merely illustrate the basic idea of the present invention by way of illustration, and the following embodiments and features in the embodiments may be combined with each other without conflict.
Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to limit the invention; for the purpose of better illustrating embodiments of the invention, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numbers in the drawings of embodiments of the invention correspond to the same or similar components; in the description of the present invention, it should be understood that, if there are terms such as "upper", "lower", "left", "right", "front", "rear", etc., that indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but not for indicating or suggesting that the referred device or element must have a specific azimuth, be constructed and operated in a specific azimuth, so that the terms describing the positional relationship in the drawings are merely for exemplary illustration and should not be construed as limiting the present invention, and that the specific meaning of the above terms may be understood by those of ordinary skill in the art according to the specific circumstances.
Referring to fig. 1, a cross interference suppression method for detecting a coal spontaneous combustion flag gas is disclosed, which comprises measuring concentration values of carbon monoxide, ethylene and acetylene gas, determining an influence coefficient of acetylene gas on a measured value of an ethylene gas unit, determining an influence coefficient of acetylene gas on a measured value of a carbon monoxide gas unit, and compensating according to the influence coefficient and a correction formula.
According to the method for detecting and suppressing the cross interference of the coal spontaneous combustion marking gas, disclosed by the invention, the concentration values of the carbon monoxide, ethylene and acetylene gases measured by an electrochemical principle sensor are calculated by a cross interference suppression algorithm, so that the measurement error brought by the cross interference to the sensor is eliminated, and the accurate measurement of the coal spontaneous combustion marking gas is realized; the accuracy of carbon monoxide, ethylene and acetylene gas detection is improved, the problems of false alarm, missing alarm and the like of on-line monitoring are prevented, the accuracy and the reliability of monitoring data of the spontaneous combustion and ignition degree of scientific judgment and early warning coal are guaranteed, the natural ignition scientific prejudgment level of a coal mine is greatly improved, the coal resource loss of the coal mine is reduced, and the safety production of the coal mine and the life safety of workers are guaranteed.
The carbon monoxide sensor, the ethylene sensor and the acetylene sensor which are produced by a certain factory and based on the electrochemical detection principle are adopted to design a carbon monoxide module, an ethylene module and an acetylene module, and the three modules are used for measuring the concentration of carbon monoxide gas, the concentration of ethylene gas and the concentration of acetylene gas in the same gas sample to be measured.
Determining a cross influence coefficient alpha of acetylene gas on the measured value of the ethylene module, determining a cross influence coefficient beta of the acetylene gas on the measured value of the carbon monoxide module, and determining a cross influence coefficient gamma of the ethylene gas on the measured value of the carbon monoxide module;
and setting the detection ranges of the carbon monoxide module, the ethylene module and the acetylene module to be 1000ppm, 200ppm and 100ppm respectively, and respectively selecting the concentration of the standard gas sample for the cross influence coefficient test to be 500ppm, 100ppm and 50ppm.
Calibrating the measurement value of the carbon monoxide module with a verified carbon monoxide standard gas with a concentration of 500ppm and an uncertainty of less than 3%, and calibrating the measurement value to be 500ppm; calibrating the measurement value of the ethylene module by using an ethylene standard gas with the concentration of 100ppm and the uncertainty of less than 3 percent, and calibrating the measurement value to be 100ppm; the measurement of the acetylene module was calibrated with an acetylene standard gas with a concentration of 50ppm and an uncertainty of less than 3% tested, and the measurement was calibrated to 50ppm.
The ethylene module was tested with an acetylene standard gas of concentration 50ppm with uncertainty less than 3% and measured at 62ppm, and the cross-over influence coefficient α was calculated as α=62+.50, with a calculated value of 1.24.
The carbon monoxide module was tested with a calibrated standard gas of acetylene at a concentration of 50ppm and an uncertainty of less than 3%, and the measured value of the carbon monoxide module was 44ppm, the cross-over influence coefficient β was calculated as β=44+.50, and the value after β calculation was 0.88.
The carbon monoxide module was tested with a standard ethylene gas having a concentration of 100ppm and an uncertainty of less than 3% and a measured value of 96ppm, and the cross-over influence coefficient γ was calculated as γ=96++100, and the value calculated γ was 0.96.
The method comprises the steps of sampling and calculating a gas sample to be measured by a carbon monoxide module, an ethylene module and an acetylene module, wherein the resolution is 1ppm, the initial value A0 of the concentration of the carbon monoxide gas obtained by measurement of the carbon monoxide module is 50ppm, the initial value B0 of the concentration of the ethylene gas obtained by measurement of the ethylene module is 15ppm, and the initial value C0 of the concentration of the acetylene gas obtained by measurement of the acetylene module is 8ppm.
According to the formula (1), the actual concentration value C1 of acetylene in the gas to be measured is calculated to be 8ppm, according to the formula (2), the actual concentration value B1=15-1.24x8 of ethylene is calculated to obtain 5.08ppm, according to the formula (3), the actual concentration value A1=50-0.88x8-0.96x5.08 of carbon monoxide is calculated to obtain 38.0832ppm of A1.
Therefore, in the gas sample to be measured, the actual concentration value of carbon monoxide sampled and calculated by the carbon monoxide module, the ethylene module and the acetylene module is 38ppm, the actual concentration value of ethylene is 5ppm, the actual concentration value of acetylene gas is 8ppm, and the carbon monoxide module, the ethylene module and the acetylene module update, display and output the actual concentration values of carbon monoxide, ethylene and acetylene gas.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the present invention, which is intended to be covered by the claims of the present invention.
Claims (1)
1. The method for detecting cross interference and inhibiting the spontaneous combustion of the coal is characterized by comprising the following steps of: the method comprises the following steps: through carrying out cross interference suppression algorithm calculation on concentration values of carbon monoxide, ethylene and acetylene gas measured by an electrochemical principle sensor, measurement errors brought by cross interference to the sensor are eliminated, and accurate measurement of coal spontaneous combustion marking gas is realized;
the method specifically comprises the following steps:
s1: the method comprises the steps of designing a carbon monoxide module, an ethylene module and an acetylene module by adopting a carbon monoxide sensitive element, an ethylene sensitive element and an acetylene sensitive element based on an electrochemical detection principle, wherein the three modules realize the measurement of the concentration of carbon monoxide gas, the concentration of ethylene gas and the concentration of acetylene gas in the same gas sample;
s2: determining a cross influence coefficient alpha of acetylene gas on the measured value of the ethylene module, determining a cross influence coefficient beta of the acetylene gas on the measured value of the carbon monoxide module, and determining a cross influence coefficient gamma of the ethylene gas on the measured value of the carbon monoxide module;
s3: the method comprises the steps of sampling and calculating a gas sample to be measured by a carbon monoxide module, an ethylene module and an acetylene module, measuring the carbon monoxide module to obtain an initial value A0 of carbon monoxide gas concentration, measuring the ethylene module to obtain an initial value B0 of ethylene gas concentration, and measuring the acetylene module to obtain an initial value C0 of acetylene gas concentration;
s4: calculating an actual concentration value C1 of acetylene gas to be measured, an actual concentration value B1 of ethylene gas and an actual concentration value A1 of gas sample carbon monoxide gas;
s5: repeating the steps S3 and S4, continuously measuring the actual concentration values of carbon monoxide, ethylene and acetylene in the gas sample to be measured, and updating display output;
in S4, the calculation formula of the actual concentration value C1 of acetylene gas is as follows:
C1＝C0(1)
the actual concentration value B1 of ethylene gas is calculated as follows:
B1＝B0-α×C1(2)
the actual concentration value A1 of the carbon monoxide gas is calculated as follows:
A1＝A0-β×C1-γ×B1(3)
in the step S2, the determining of the cross influence coefficients α, β, γ in the step S2 includes:
s21: determining the concentration of a cross influence coefficient test standard sample gas; the detection ranges of the carbon monoxide module, the ethylene module and the acetylene module are respectively L0, L1 and L2, the concentrations of standard gas samples used for the cross influence coefficient test are respectively N0, N1 and N2, and then N0, N1 and N2 meet the requirements of formulas (4), (5) and (6):
0.40×L0≤N0≤0.60×L0(4)0.40×L1≤N1≤0.60×L1(5)0.40×L2≤N2≤0.60×L2(6)
s22: calibrating the accuracy of the carbon monoxide module, the ethylene module and the acetylene module;
calibrating the measured value of the carbon monoxide module by using a carbon monoxide standard gas with the verified concentration of N0 and the uncertainty of less than 3 percent, and calibrating the measured value to be N0;
calibrating the measured value of the ethylene module by using an ethylene standard gas with the concentration of N1 and the uncertainty of less than 3 percent, and calibrating the measured value to be N1;
calibrating the measured value of the acetylene module by using an acetylene standard gas with the concentration of N2 and the uncertainty of less than 3 percent, and calibrating the measured value to be N2;
s23: determining a calculation formula of cross influence coefficients alpha, beta and gamma;
the calculation formula for determining the cross influence coefficient alpha is as follows:
testing an ethylene module by using an acetylene standard gas with the concentration of N2 and the uncertainty of less than 3 percent, wherein the measured value of the ethylene module is N3, and the cross influence coefficient alpha is calculated according to the formula
α＝N3÷N2(7)
The calculation formula for determining the cross influence coefficient beta is as follows:
testing a carbon monoxide module by using acetylene standard gas with the verified concentration of N2 and the uncertainty of less than 3%, wherein the measured value of the carbon monoxide module is N4, and the calculation formula of the cross influence coefficient beta is as follows
β＝N4÷N2(8)
The calculation formula for determining the cross influence coefficient gamma is as follows:
the carbon monoxide module is tested by using ethylene standard gas with the verified concentration of N1 and the uncertainty of less than 3 percent, and the measured value of the carbon monoxide module is N5, and the calculation formula of the cross influence coefficient gamma is gamma=N5/N1 (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110172300.8A CN112986364B (en) | 2021-02-08 | 2021-02-08 | Cross interference suppression method for coal spontaneous combustion flag gas detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110172300.8A CN112986364B (en) | 2021-02-08 | 2021-02-08 | Cross interference suppression method for coal spontaneous combustion flag gas detection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112986364A CN112986364A (en) | 2021-06-18 |
| CN112986364B true CN112986364B (en) | 2023-11-03 |
Family
ID=76347545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110172300.8A Active CN112986364B (en) | 2021-02-08 | 2021-02-08 | Cross interference suppression method for coal spontaneous combustion flag gas detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112986364B (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105697063B (en) * | 2016-01-28 | 2018-04-06 | 光力科技股份有限公司 | A kind of mining condition of a fire method for early warning and system based on multi-parameter alternate analysis |
| CN108717098B (en) * | 2018-05-22 | 2021-01-01 | 上海交通大学 | Method for improving detection precision of concentration of mixed gas |
-
2021
- 2021-02-08 CN CN202110172300.8A patent/CN112986364B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN112986364A (en) | 2021-06-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110646466B (en) | Calibration method, system and equipment of semiconductor type gas sensor | |
| US6319375B1 (en) | Apparatus for identifying a gas | |
| CN105259327B (en) | A kind of combustible gas detector and its detection method | |
| US11680933B2 (en) | Determination of sensor operational status via sensor interrogation | |
| CN110531033A (en) | The monitoring method and device, line measuring system for moisture content of online moisture measurement accuracy | |
| CA2641889C (en) | Electrochemical carbon monoxide sensor supervision | |
| WO2014162614A1 (en) | System for measuring carbon component contained in particulate matter | |
| US8505354B2 (en) | Compensated gas detectors | |
| AU634943B2 (en) | Method and system for detecting underground mine fires | |
| CN112986364B (en) | Cross interference suppression method for coal spontaneous combustion flag gas detection | |
| CN117574681B (en) | Sensor service life prediction method based on oil smoke gas interference | |
| CN117554569A (en) | Method and device for checking hydrogen sensor, readable storage medium and checking system | |
| CN113624929B (en) | Full-range automatic calibration method for gas sensor | |
| CN116893153A (en) | Infrared gas sensor and anti-interference detection method thereof | |
| US20160343459A1 (en) | Gas monitoring system and method for nuclear reactor | |
| JP3322939B2 (en) | Process instrumentation rack | |
| CN109758703A (en) | A kind of error correction systems and method for fire-fighting scene of a fire pressure-altitude sensor | |
| GB2381317A (en) | Method of calibrating a gas sensor for measuring a number of gaseous components in a gaseous sample | |
| Xuhui | Evaluation and testing of an intelligent methane detecting system | |
| RU2317481C1 (en) | Mode of control over gas escape from a technological object | |
| CN114720536B (en) | Mining toxic and harmful gas concentration detection method based on single-point calibration fitting algorithm | |
| US20230384278A1 (en) | Method, apparatus and system for monitoring sensor health and gas response for catalytic pellistor poisoning | |
| CN112540112B (en) | Sensor calibration method, device, equipment and storage medium | |
| JP2010038541A (en) | Detection method of trace of substance and abnormality detector | |
| KR102474878B1 (en) | Multi gas detection system for detecting odor and harmful gas |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |