CN108037129A - Method for detecting Coal mine methane concentration - Google Patents
Method for detecting Coal mine methane concentration Download PDFInfo
- Publication number
- CN108037129A CN108037129A CN201711243745.0A CN201711243745A CN108037129A CN 108037129 A CN108037129 A CN 108037129A CN 201711243745 A CN201711243745 A CN 201711243745A CN 108037129 A CN108037129 A CN 108037129A
- Authority
- CN
- China
- Prior art keywords
- coal mine
- gas
- gas concentration
- mine methane
- detecting coal
- 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.)
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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
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
-
- 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
- G01N21/84—Systems specially adapted for particular applications
- G01N21/85—Investigating moving fluids or granular solids
-
- 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
- G01N21/84—Systems specially adapted for particular applications
- G01N21/85—Investigating moving fluids or granular solids
- G01N2021/8578—Gaseous flow
Abstract
The invention discloses the method for detecting Coal mine methane concentration, follow the steps below successively：The gas concentration for needing to detect is converted into current signal transfer to processor by laser gas detection components；By processor by above-mentioned current signal compared with the threshold value by keyboard to set up；When a threshold is exceeded, alarm is sent by buzzer and alarm lamp；Gas concentration data are printed by printer；Current gas concentration data are shown by display screen；By being connected Aviation Connector with PC ends by gas concentration data transfer to PC ends.The present invention solves mining methane existing in the prior art and surveys device detection inaccuracy, accuracy of detection is low, the problem of needing often to calibrate, the method for being used for detecting Coal mine methane concentration is provided, when it is applied by way of laser detection gas, accuracy of detection can be improved, extend calibration cycle, the workload of monitoring system maintenance and calibration personnel is substantially reduced, achievees the purpose that subtracting people puies forward effect, there is larger economic value.
Description
Technical field
The present invention relates to CH_4 detection, and in particular to the method for detecting Coal mine methane concentration.
Background technology
It is also growing day by day to the demand of coal with the continuous development of national economy, but to ensure that mining industry is smoothed out,
Safety is very important.In history, as coal mining accident the methane explosive incident of one of the main reason for frequently occurs, and causes
Heavy casualties and economic loss, lesson is deep, for this so that coal production and management unit pays much attention to Coal mine methane monitoring,
At the same time carry out Coal mine methane detection work also become colliery whether the necessary condition that can be produced.At present, used in domestic colliery
The existing certain scale of methane warning system, but its accuracy of detection is low, and detection range is narrow, it is difficult to the methane of high concentration is detected,
Simultaneously because the interference of other gases, causes invalid judgement.In addition, stability is also poor, the uniformity of air-sensitive detection sensor, mutually
Transsexual difference is, it is necessary to often calibrate, and inconvenient to use, maintenance cost is high.How reliability is brought up to very high level, can carried
The stability of monitoring system is risen, it is significant to preventing ventilation methane accident, there is larger society and economic value.
The content of the invention
The present invention solves mining methane existing in the prior art, and to survey device detection inaccurate, accuracy of detection it is low, it is necessary to through
Often the problem of calibration, there is provided the method for detecting Coal mine methane concentration, can when it is applied by way of laser detection gas
To improve accuracy of detection, calibration cycle is extended, the workload of monitoring system maintenance and calibration personnel is substantially reduced, reaches and subtract people
The purpose of effect is put forward, there is larger economic value.
The present invention is achieved through the following technical solutions：
Method for detecting Coal mine methane concentration, follows the steps below successively：
A：The gas concentration for needing to detect is converted into current signal transfer to processor by laser gas detection components；
B：By processor by above-mentioned current signal compared with the threshold value by keyboard to set up；
C：When a threshold is exceeded, alarm is sent by buzzer and alarm lamp；
E：Gas concentration data are printed by printer；
D：The electronic edition data of gas concentration are obtained by USB interface；
F：Current gas concentration data are shown by display screen；
G：By being connected Aviation Connector with PC ends by gas concentration data transfer to PC ends.
Further, the method for detecting Coal mine methane concentration, the laser gas detection components in the step A include
Sequentially connected laser, splitter, incident optical collimater, incident thang-kng groove, sampling gas chamber, outgoing thang-kng groove, emergent light
Fine collimater and array photodetectors.
Further, the method for detecting Coal mine methane concentration, the buzzer in the step C is piezoelectric buzzer.
Further, the method for detecting Coal mine methane concentration, the alarm lamp in the step C highlight LED for feux rouges
Lamp group.
Further, the method for detecting Coal mine methane concentration, the display screen in the step F is eight sections of quaternity
Red charactron.
Compared with prior art, the present invention have the following advantages and advantages：
1st, the present invention can be improved accuracy of detection, be extended calibration cycle, dropped significantly by way of laser detection gas
Low monitoring system is safeguarded and the workload of calibration personnel, achievees the purpose that subtracting people puies forward effect, has larger economic value.
2nd, up to 5 years, catalysis, thermal conductivity, electrochemistry core element made the laser gas detection components service life in the present invention
With just 1 year service life, laser gas detection components service life length, can save element replacement expense.
3rd, the laser gas detection components in the present invention can use under oxygen-free environment, wide range of measurement, rescue team member row
The gas concentration in the instrument continuous monitoring environment can be used when methane, process accident, there is preferable use value.
Embodiment
For the object, technical solutions and advantages of the present invention are more clearly understood, with reference to embodiment, the present invention is made
Further to describe in detail, exemplary embodiment of the invention and its explanation are only used for explaining the present invention, are not intended as to this
The restriction of invention.
Embodiment
Method for detecting Coal mine methane concentration, follows the steps below successively：
A：The gas concentration for needing to detect is converted into current signal transfer to processor by laser gas detection components；
B：By processor by above-mentioned current signal compared with the threshold value by keyboard to set up；
C：When a threshold is exceeded, alarm is sent by buzzer and alarm lamp；
E：Gas concentration data are printed by printer；
D：The electronic edition data of gas concentration are obtained by USB interface；
F：Current gas concentration data are shown by display screen；
G：By being connected Aviation Connector with PC ends by gas concentration data transfer to PC ends.
Preferably, the laser gas detection components in the step A include sequentially connected laser, splitter, incidence
Optical fiber collimator, incident thang-kng groove, sampling gas chamber, outgoing thang-kng groove, the output optical fiber collimater and array photodetectors.It is described
Buzzer in step C is piezoelectric buzzer.Alarm lamp in the step C is feux rouges high-brightness LED lamp group.In the step F
Display screen be the red charactrons of eight sections of quaternity.
The course of work of the present invention is as follows：The implementation of the present invention includes casing, and the casing is rectangular parallelepiped structure, institute
Casing is stated to be stamped to form using stainless steel, the casing include protecgulum and with the matched rear cover of protecgulum, the protecgulum and rear cover
Cavity body structure is formed, rubber seal is set between the protecgulum and rear cover, the cabinet top sets handle, the casing side
Face sets Aviation Connector, and the casing internal sets processor, and the bottom of shell sets laser gas detection components, described to swash
Between photodetector and casing set silica gel sealing ring, the laser gas detection components include sequentially connected laser,
Splitter, incident optical collimater, incident thang-kng groove, sampling gas chamber, outgoing thang-kng groove, the output optical fiber collimater and array photoelectric
Detector, the laser gas detection components surface set alarm lamp, and the alarm lamp is feux rouges high-brightness LED lamp group, before described
Cover and keyboard, USB interface, display screen, buzzer and printer are set, the display screen is red digital for eight sections of quaternity
Pipe, the buzzer are piezoelectric buzzer, the laser gas detection components, keyboard, array photodetectors, Aviation Connector,
USB interface, display screen, buzzer, alarm lamp and printer are electrically connected with the processor respectively.Detected by laser gas
The gas concentration for needing to detect is converted to current signal transfer to processor by component, and processor is by above-mentioned current signal with passing through
The threshold value of keyboard to set up is compared, and when a threshold is exceeded, is sent alarm by buzzer and alarm lamp, is printed by printer
Gas concentration data, the electronic edition data of gas concentration are obtained by USB interface, are connected by Aviation Connector with PC ends.Pass through
The mode of laser detection gas, can improve accuracy of detection, extend calibration cycle, substantially reduce monitoring system and safeguard and calibrate
The workload of personnel, achievees the purpose that subtracting people puies forward effect, has larger economic value.
Above-described embodiment, has carried out the purpose of the present invention, technical solution and beneficial effect further
Describe in detail, it should be understood that the foregoing is merely the embodiment of the present invention, be not intended to limit the present invention
Protection domain, within the spirit and principles of the invention, any modification, equivalent substitution, improvement and etc. done, should all include
Within protection scope of the present invention.
Claims (5)
1. the method for detecting Coal mine methane concentration, it is characterised in that follow the steps below successively：
A：The gas concentration for needing to detect is converted into current signal transfer to processor by laser gas detection components；
B：By processor by above-mentioned current signal compared with the threshold value by keyboard to set up；
C：When a threshold is exceeded, alarm is sent by buzzer and alarm lamp；
E：Gas concentration data are printed by printer；
D：The electronic edition data of gas concentration are obtained by USB interface；
F：Current gas concentration data are shown by display screen；
G：By being connected Aviation Connector with PC ends by gas concentration data transfer to PC ends.
2. the method according to claim 1 for detecting Coal mine methane concentration, it is characterised in that in the step A
Laser gas detection components include sequentially connected laser, splitter, incident optical collimater, incident thang-kng groove, sampling gas
Room, outgoing thang-kng groove, the output optical fiber collimater and array photodetectors.
3. the method according to claim 1 for detecting Coal mine methane concentration, it is characterised in that in the step C
Buzzer is piezoelectric buzzer.
4. the method according to claim 1 for detecting Coal mine methane concentration, it is characterised in that in the step C
Alarm lamp is feux rouges high-brightness LED lamp group.
5. the method according to claim 1 for detecting Coal mine methane concentration, it is characterised in that in the step F
Display screen is eight sections of red charactrons of quaternity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711243745.0A CN108037129A (en) | 2017-11-30 | 2017-11-30 | Method for detecting Coal mine methane concentration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711243745.0A CN108037129A (en) | 2017-11-30 | 2017-11-30 | Method for detecting Coal mine methane concentration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108037129A true CN108037129A (en) | 2018-05-15 |
Family
ID=62094769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711243745.0A Withdrawn CN108037129A (en) | 2017-11-30 | 2017-11-30 | Method for detecting Coal mine methane concentration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108037129A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109085304A (en) * | 2018-09-06 | 2018-12-25 | 滨州学院 | A kind of detection of methane gas and dangerous concentrations prior-warning device |
| CN109307693A (en) * | 2018-08-21 | 2019-02-05 | 电子科技大学 | A kind of detection NO2The method of gas |
| CN112834708A (en) * | 2021-01-20 | 2021-05-25 | 太原理工大学 | Mining methane detection device based on energy capture and energy saving method |
-
2017
- 2017-11-30 CN CN201711243745.0A patent/CN108037129A/en not_active Withdrawn
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109307693A (en) * | 2018-08-21 | 2019-02-05 | 电子科技大学 | A kind of detection NO2The method of gas |
| CN109085304A (en) * | 2018-09-06 | 2018-12-25 | 滨州学院 | A kind of detection of methane gas and dangerous concentrations prior-warning device |
| CN112834708A (en) * | 2021-01-20 | 2021-05-25 | 太原理工大学 | Mining methane detection device based on energy capture and energy saving method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180515 |