CN110501304A - Underground spectrum Tube Bundle Monitoring System - Google Patents
Underground spectrum Tube Bundle Monitoring System Download PDFInfo
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- CN110501304A CN110501304A CN201810468073.1A CN201810468073A CN110501304A CN 110501304 A CN110501304 A CN 110501304A CN 201810468073 A CN201810468073 A CN 201810468073A CN 110501304 A CN110501304 A CN 110501304A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/24—Suction devices
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- 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
- G01N21/39—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using tunable lasers
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Abstract
Underground spectrum Tube Bundle Monitoring System, including underground part and above ground portion, the underground part include air inlet beam tube, positive pressure gasing pump, multicomponent gas spectrum analysis substation and industrial electrical network；The above ground portion includes monitoring host computer and monitor screen；The air inlet beam tube connects gasing pump inlet end, and gasing pump outlet side connects multicomponent gas spectrum analysis substation；Multicomponent gas spectrum analysis substation connects monitoring host computer by industrial electrical network, and monitoring host computer and monitor screen communicate to connect.The present invention provides a kind of underground spectrum Tube Bundle Monitoring System.The system analyzes the situation of change of coal mine underground gas environment by spectral technique, to realize spontaneous fire in coal mine prediction, provides safeguard for the safety in production of coal mine.
Description
Technical field
The present invention, which relates to, belongs to spontaneous fire in coal mine monitoring field, specifically a kind of underground spectrum Tube Bundle Monitoring System.
Background technique
Spontaneous fire in coal mine forecasting technique refers to after seam mining, is discharged according to the temperature rise in coal spontaneous combustion process, gas
Equal variation characteristics, recognize nature, identify to freely burning fire the technology of simultaneously early warning.It is mine fire prevention and processing
Basis, be the key that the prevention and treatment of mine coal seam fire, occupy and its consequence.Down-hole coal bed fire forecast must be more early, more
Accurately, then the required manpower and material resources that stamp out a fire are fewer and easier.As long as can accurately, in time carry out coal bed fire
Forecast can accomplish the measure for taking prevention coal bed fire with a definite target in view, the specific aim and validity of measure be improved, to mention
The economic benefit of high preventing and extinguishing fire of coal mine engineering.
The forecast and detection technique of spontaneous fire in coal mine, according to the variation of reaction product and Meteorological Characteristics, except artificial direct
It is outer to recognize the rough predictions such as smell, extension sweat, hot gas and coal temperature, often determines, slap by means of special measurement, analysis instrument instrument
Hold its spontaneous combustion hidden danger degree.
Currently, domestic application is relatively widely thermometry and eudiometry mostly to predict the forecast of freely burning fire.
Using thermometry the problem is that: temperature measuring equipment can only monitor that it, can only be for regard to the temperature change near field
Point measures, and unknown point is unable to measure, therefore the data measured can not comprehensively react the true situation in goaf.Gas
Analytic approach mainly has two kinds of technologies of infrared observation and beam tube chromatogram monitoring.The problem of infrared monitoring is that detected components are few, is only capable of
Detect tetra- kinds of components of CO, CO2, CH4, O2 gas, and carbon monoxide, ethylene, acetylene, alkane ratio, ethylenic alkoxy rate, etc. be all forecast
Coal spontaneous combustion development process important indicator.Pipe chromatogram monitoring the problem is that: due to use negative pressure monitoring system, so to longer
Beam tube line, beam tube difficulty maintenance, once occur gas leakage, the result of detection is with regard to unreliable.Gas is taken to need in long pipe runs longer
Time, the one cycle period is long, and the analysis frequency continuously detected is insufficient.It is improved although currently used chromatographic apparatus passes through,
But still it is based on lab analysis equipment, Operation and Maintenance is all more complicated, analysis need of work professional operation.It is not profession
Chemical analysis personnel are difficult to carry out analysis and maintenance work.
Summary of the invention
In order to solve the above-mentioned technical problem deficiency, the present invention provide a kind of underground spectrum Tube Bundle Monitoring System.The system
The situation of change of coal mine underground gas environment is analyzed by spectral technique, is coal to realize spontaneous fire in coal mine prediction
The safety in production of mine provides safeguard.
To achieve the goals above, described the invention adopts the following technical scheme: including underground part and above ground portion
Underground part includes air inlet beam tube, positive pressure gasing pump, multicomponent gas spectrum analysis substation and industrial electrical network；The floor portion
Divide includes monitoring host computer and monitor screen；The air inlet beam tube connects gasing pump inlet end, and gasing pump outlet side connects multicomponent gas
Body spectrum analysis substation；Multicomponent gas spectrum analysis substation connects monitoring host computer, monitoring host computer and monitoring by industrial electrical network
Screen communication connection.
In order to further realize the present invention, can also use following technical scheme: the underground part is at least three groups
Setting, every group includes air inlet beam tube, positive pressure gasing pump, multicomponent gas spectrum analysis substation and industrial electrical network.The multiple groups
Dividing spectrochemical analysis for gases substation includes circuit part and air path part, and the circuit part includes power supply, computer, Communication Control
Plate, spectral analysis module, the first solenoid valve, second solenoid valve, solenoid valve block and pressure sensor, computer and monitoring host computer and lead to
Interrogate control panel communication connection, Communication Control plate and spectral analysis module, the first solenoid valve, second solenoid valve, solenoid valve block, pressure
Sensor is connected with power source communications；The air path part includes nitrogen cylinder, standard gas bottle, pressure reducing valve, the first solenoid valve, the second electromagnetism
Valve, solenoid valve block, spectral analysis module are evacuated pumping plant, cooling tube, water filter, flowmeter；It is filled in the nitrogen cylinder highly concentrated
Spend nitrogen, and by pipeline connect pressure reducing valve, by the first electromagnetism valve pipeline connection spectral analysis module；In the standard gas bottle
Standard gas pipeline connect pressure reducing valve, by electromagnetism valve pipeline connect spectral analysis module；The solenoid valve block and pumping pumping plant connect
It connects, while being sequentially connected cooling tube, water filter, flowmeter, second solenoid valve and spectral analysis module；The solenoid valve block with adopt
Sample end is connected, and sampling end is connect with gasing pump outlet side, is evacuated pumping plant as the design of double pump head, one end is pumping end, and the other end is
Sampling end, is evacuated end and sampling end is connected with the both ends of solenoid valve block respectively, is evacuated the other end and cooling tube of pumping plant sampling end
It is connected.The spectral analysis module is based on tunable spectrum absorption spectroscopy techniques.The multicomponent gas spectrum analysis
Substation realizes temperature monitoring and signal transmission using unit cable.The multicomponent gas spectrum analysis substation is additionally provided with
One shell and second housing, second housing are arranged in the first shell, and the circuit part is arranged in second housing；It is described
Air path part be arranged between the inner wall of the first shell and the outer wall of second housing.The second housing is explosion-resistant enclosure.
The invention has the benefit that underground part of the present invention is placed near underground goaf or citadel, using just
Gasing pump is pressed to extract gas from Multi-channel monitoring point by air inlet beam tube, it is more that sample gas enters underground in beam tube in a manner of positive pressure
Component gases spectrum analysis substation, in sample gas transmission process, beam intraductal atmospheric pressure is consistently greater than beam tube pressure, guarantees sample
Gas will not be polluted by extraneous gas, guaranteed the pure effective of sample gas, guaranteed the reliability of institute's detection data from source；In gas
Monitoring point sample gas is continuously analyzed using spectral analysis module in body analytical unit, it is fieryly related to working face and goaf
Calamity parameter is monitored；Institute's monitoring data will be transmitted to monitoring host computer on well by industrial looped network, and be shown by monitoring large-size screen monitors
To monitoring personnel.Gas analysis substation is placed near underground monitoring point in the present invention, and implementation is flexible for installation, greatly shortens beam tube
The length of gas transmission, maintenance is simple, at low cost, increases the reliability that beam tube uses.
Detailed description of the invention:
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to embodiment or existing skill
Attached drawing needed in art description is briefly described, it should be apparent that, the accompanying drawings in the following description is only the present invention
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is structure of the invention block diagram；
Fig. 2 is multicomponent gas spectrum analysis substation structural schematic diagram in Fig. 1；
Fig. 3 is the direct absorption measurement method structure chart of spectrum.
Appended drawing reference: 14 second housing of sampling end 2 first shell, 3 solenoid valve block, 5 spectral analysis module 6 communication control
7 computer of making sheet, 8 pressure sensor, 9 12 nitrogen cylinder of second solenoid valve 10 first solenoid valve, 11 standard gas bottle, 13 pressure reducing valve 14
15 flowmeter 16 of water filter is evacuated 17 cooling tube of pumping plant, 18 power supply.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to embodiments, to the present invention
It is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to
Limit the present invention.
Underground spectrum Tube Bundle Monitoring System, as shown in Figure 1, including underground part and above ground portion, the underground part
Including air inlet beam tube, positive pressure gasing pump, multicomponent gas spectrum analysis substation and industrial electrical network；The above ground portion includes prison
Control host and monitor screen；The air inlet beam tube connects gasing pump inlet end, and gasing pump outlet side connects multicomponent gas spectrum point
Analyse substation；Multicomponent gas spectrum analysis substation connects monitoring host computer, monitoring host computer and monitor screen communication link by industrial electrical network
It connects.Underground part of the present invention is placed near underground goaf or citadel, using positive pressure gasing pump by air inlet beam tube from more
Gas is extracted in road monitoring point, and sample gas enters underground multicomponent gas spectrum analysis substation, In in beam tube in a manner of positive pressure
In sample gas transmission process, beam intraductal atmospheric pressure is consistently greater than beam tube pressure, guarantees that sample gas will not be polluted by extraneous gas,
Guarantee the pure effective of sample gas, guarantees the reliability of institute's detection data from source；Spectrum point is utilized in gas analysis unit
Analysis module continuously analyzes monitoring point sample gas, related to working face and goaf that fire parameter is monitored；It is monitored
Data will be transmitted to monitoring host computer on well by industrial looped network, and show monitoring personnel by monitoring large-size screen monitors.Gas in the present invention
Body analysis substation is placed near underground monitoring point, and implementation is flexible for installation, greatly shortens the length of beam tube gas transmission, and maintenance is simple,
It is at low cost, increase the reliability that beam tube uses.
In order to increase the range for extracting sample gas, the accuracy of detection data is further increased, the underground part is
At least three groups of settings, every group includes air inlet beam tube, positive pressure gasing pump, multicomponent gas spectrum analysis substation and industrial electrical network.
As shown in Fig. 2, the multicomponent gas spectrum analysis substation includes circuit part and air path part, the circuit portion
Divide includes power supply 18, computer 7, Communication Control plate 6, spectral analysis module 5, the first solenoid valve 10, second solenoid valve 9, solenoid valve
Group 3 and pressure sensor 8, computer 7 and monitoring host computer and Communication Control plate 6 communicate to connect, Communication Control plate 6 and spectrum analysis mould
Block 5, the first solenoid valve 10, second solenoid valve 9, solenoid valve block 3, pressure sensor 8 and power supply 18 communicate to connect；Computer 7 is responsible for
It assigns operational order and shows data result, Communication Control plate 6 is responsible for the command signal that computer 7 is assigned being communicated to other light
Spectrum analysis module 5, the first solenoid valve 10, second solenoid valve 9 and solenoid valve block 3 control them and make movement, while spectrum being divided
Analysis module 5, the data of 8 collection analysis of pressure sensor are transmitted back on computer 7, are shown to user by computer 7；The gas circuit portion
Divide includes nitrogen cylinder 12, standard gas bottle 11, pressure reducing valve 13, the first solenoid valve 10, second solenoid valve 9, solenoid valve block 3, spectrum analysis
Module 5 is evacuated pumping plant 16, cooling tube 17, water filter 14, flowmeter 15；It is filled with nitrogen-rich gas in the nitrogen cylinder 12, and
Pressure reducing valve, 13 are connected by pipeline, connects spectral analysis module 5 by 10 pipeline of the first solenoid valve；In the standard gas bottle 11
Standard gas pipeline connects pressure reducing valve 13, connects spectral analysis module 5 by 2 pipeline of solenoid valve；The solenoid valve block 3 and pumping pumping plant
16 connections, while being sequentially connected cooling tube 17, water filter 14, flowmeter 15, second solenoid valve 9 and spectral analysis module 5；It is described
Solenoid valve block 3 is connected with sampling end 1, and sampling end 1 is connect with gasing pump outlet side, is evacuated pumping plant 16 as the design of double pump head, one end
To be evacuated end, the other end is sampling end, is evacuated end and sampling end is connected with the both ends of solenoid valve block 3 respectively, and pumping pumping plant 16 is adopted
The other end at sample end is connected with cooling tube 17.Be nitrogen-rich gas in nitrogen cylinder 12, by pressure reducing valve 13, the first solenoid valve 10 into
Enter spectral analysis module 5, Zero calibration is carried out to spectral analysis module 5, the opening and closing of the first solenoid valve 10 is controlled by computer 7；Mark
Standard gas enters spectral analysis module 5 by pressure reducing valve 13, second solenoid valve 9 in gas cylinder 11, marks to spectral analysis module 5
School；The on-off action of solenoid valve block 3 is controlled by computer 7, when computer 7 assign instruction require detection wherein certain pass through Communication Control plate
Instruction is transmitted to solenoid valve block 3 by 6, and when solenoid valve block 3 is failure to actuate, the sample gas of sampling end is pumped down to via solenoid valve block 3
Pumping plant 16 is evacuated end, is evacuated end discharge by pumping pumping plant 16, all the way when sample gas, the electromagnetism valve events on the corresponding road, and sample
Gas enters spectral analysis module 5 via 16 sampling end of pumping plant, cooling tube 17, flowmeter 15, second solenoid valve 9, passes through spectrum point
Analysis module 5 tests and analyzes the component content of sample gas, analyzes result via Communication Control plate 6 and passes computer back.
In order to guarantee that sample gas is dry, it is unlikely to form spectral analysis module 5 and damages, present invention employs multistage dedustings
Water removal function, including cooling tube 17, water filter 14 then pass through drainage by cooling tube 17 by the moisture condensation in sample gas
Device 14 is discharged, and ensure that the drying of sample gas and the normal use of spectral analysis module 5.
In order to various ingredients be carried out and be tested and analyzed, increase the practicability of this system, the spectrum analysis mould
Block 5 is based on tunable spectrum absorption spectroscopy techniques.Using tunable spectrum spectral absorption technology, in conjunction with electrochemistry, infrared etc.
A variety of sensor monitoring means, can be effectively to gas components such as CO, CH4, O2, CO2, C2H4 in the freely burning fire gas of underground
Carry out accurate monitoring analysis.
Gas detection based on tunable spectrum absorption spectroscopy techniques and it is based on internal reference gas chamber, spectrum baseline self-correction
The anti-dust of method, moisture resistant technology；Since most of pernicious gas has apparent spectral absorption special near infrared spectrum
Property, the absorption spectrum of each pernicious gas is conscientiously studied, will be had using the detection that spectral absorption technology carries out gas concentration bright
Aobvious advantage.It is fast-developing in recent years get up tunable diode spectra Absorption spectra technology be one kind be able to achieve it is highly sensitive,
In real time, the Trace gas detection technology of dynamic measurement, using the length scanning and current-tuning characteristic of spectrum diode to gas
It measures.Due to the high monochromaticity of spectrum diode, an isolated absorption line pair of gas molecule can use
The absorption spectrum of gas measures, to be convenient to identify different molecules from blending constituent, avoids other spectrum
Interference.Near infrared band is matched with the low loss window of optical fiber, using optical fiber and optical fibre device can be convenient to light beam into
The remote transmission of row.Gas concentration can be realized in conjunction with tuning diode spectra Absorption spectra technology and optical fiber sensing technology
Remote online real-time detection.
Main law based on spectral absorption method is exactly bright nurse Bert-Beer law.According to Lambert-Beer law,
When a branch of light intensity isGas chamber of the directional light by being equipped under test gas when, if light source light spectrum covering is one or more
The absorption line of the gas, then transmitted light intensityWith incident intensityAnd gas concentrationBetween relationship be
(1)
Wherein,For the absorption coefficient of medium；For the length of light absorption gas；For the gas
The line intensity of body characteristics spectral line, it indicates the absorption intensity of spectral line, only related with temperature；For the stagnation pressure of gas medium；For the volumetric concentration of gas；For linear function, it illustrates the shape of tested absorption line, with temperature, stagnation pressure
Power is related with each component content in gas, and general common three kinds of linear functions are lorentz linear function, Gauss line style
Function and voigt linear function.
It integrates, then can be obtained in entire frequency domain to after formula (1) both sides progress logarithm operation:
(2)
Therefore, gas concentration can directly be calculate by the following formula and obtain:
(3)
It, will in the case where knowing the parameters such as pressure, line intensity, the length of light absorption gasIntegral on frequency domain
Value is brought into formula (3), so that it may finally obtain gas concentration value.Directly spectral absorption signal is not carried out under normal conditions
Integral, and be fitted using corresponding linear function, it is accurately obtained the integrated value from linear fitting result, reduces directly product
The influence of timesharing measurement error.Its system structure is as shown in Figure 3.Therefore, it using high-resolution spectroscopy absorption spectroscopy techniques, eliminates
Gas cross interference, measurement are not influenced by dust, steam, and corresponding speed is fast, it can be achieved that continuous measurement.
The multicomponent gas spectrum analysis substation realizes temperature monitoring and signal transmission using unit cable.Comprehensive benefit
Spatial temperature distribution information is obtained with Effect of Optical Fiber Raman Scatter and optical time domain reflection measuring technique, wherein fiber raman scattering
Effect is for realizing temperature measurement, and for optical time domain reflection measuring technique for realizing temperature positioning, it can continuously measure optical fiber edge
The profiling temperatures of line, measurement distance is up to 30 kilometers, and spatial positioning accuracy reaches the order of magnitude of rice, between being able to carry out not
Disconnected automatic measurement is suitable for needing the application of long range, a wide range of multimetering.
Person's common enclosure is not all placed in order to meet system all devices in the application requirement of underground complex environment, substation
It is interior, guarantee that external complex environment will not influence the normal work of substation content.The multicomponent gas spectrum analysis substation is also
It is provided with the first shell 2 and second housing 4, second housing 4 is arranged in the first shell 2, and the circuit part setting is the
In two shells 4；The air path part is arranged between the inner wall of the first shell 2 and the outer wall of second housing 4.
In order to further prevent the circuit in system by moisture attack, lead to the system failure, the second housing 4 is
Explosion-resistant enclosure.
Certainly, above description is also not limited to the example above, technical characteristic of the present invention without description can by or
It is realized using the prior art, details are not described herein；It is not to this that the above examples are only used to illustrate the technical scheme of the present invention
The limitation of invention, describes the invention in detail referring to preferred embodiment, and those skilled in the art should
Understand, the variations, modifications, additions or substitutions that those skilled in the art are made within the essential scope of the present invention
Without departure from spirit of the invention, it also should belong to claims of the invention.
Claims (7)
1. underground spectrum Tube Bundle Monitoring System, including underground part and above ground portion, it is characterised in that: the underground part packet
Include air inlet beam tube, positive pressure gasing pump, multicomponent gas spectrum analysis substation and industrial electrical network；The above ground portion includes monitoring
Host and monitor screen；The air inlet beam tube connects gasing pump inlet end, and gasing pump outlet side connects multicomponent gas spectrum analysis
Substation；Multicomponent gas spectrum analysis substation connects monitoring host computer by industrial electrical network, and monitoring host computer and monitor screen communicate to connect.
2. spectrum Tube Bundle Monitoring System in underground according to claim 1, it is characterised in that: the underground part is at least
Three groups of settings, every group includes air inlet beam tube, positive pressure gasing pump, multicomponent gas spectrum analysis substation and industrial electrical network.
3. spectrum Tube Bundle Monitoring System in underground according to claim 1, it is characterised in that: the multicomponent gas spectrum point
Analysis substation includes circuit part and air path part, the circuit part include power supply (18), computer (7), Communication Control plate (6),
Spectral analysis module (5), the first solenoid valve (10), second solenoid valve (9), solenoid valve block (3) and pressure sensor (8), computer
(7) it is communicated to connect with monitoring host computer and Communication Control plate (6), Communication Control plate (6) and spectral analysis module (5), the first electromagnetism
Valve (10), second solenoid valve (9), solenoid valve block (3), pressure sensor (8) and power supply (18) communication connection；The air path part
Including nitrogen cylinder (12), standard gas bottle (11), pressure reducing valve (13), the first solenoid valve (10), second solenoid valve (9), solenoid valve block
(3), spectral analysis module (5) are evacuated pumping plant (16), cooling tube (17), water filter (14), flowmeter (15)；The nitrogen cylinder
(12) it is filled with nitrogen-rich gas in, and pressure reducing valve, (13) are connected by pipeline, connects light by the first solenoid valve (10) pipeline
Spectrum analysis module (5)；Standard gas pipeline in the standard gas bottle (11) connects pressure reducing valve (13), connects light by 2 pipeline of solenoid valve
Spectrum analysis module (5)；The solenoid valve block (3) connect with pumping pumping plant (16), while being sequentially connected cooling tube (17), water filter
(14), flowmeter (15), second solenoid valve (9) and spectral analysis module (5)；The solenoid valve block (3) and sampling end (1) phase
Even, sampling end (1) is connect with gasing pump outlet side, is evacuated pumping plant (16) as the design of double pump head, one end is pumping end, and the other end is
Sampling end is evacuated end and sampling end and is connected respectively with the both ends of solenoid valve block (3), be evacuated pumping plant (16) sampling end the other end and
Cooling tube (17) is connected.
4. spectrum Tube Bundle Monitoring System in underground according to claim 3, it is characterised in that: the spectral analysis module
It (5) is based on tunable spectrum absorption spectroscopy techniques.
5. spectrum Tube Bundle Monitoring System in underground according to claim 3, it is characterised in that: the multicomponent gas spectrum
It analyzes substation and temperature monitoring and signal transmission is realized using unit cable.
6. any underground spectrum Tube Bundle Monitoring System of Claims 1-4, it is characterised in that: the multicomponent gas
Spectrum analysis substation is additionally provided with the first shell (2) and second housing (4), and second housing (4) setting is interior in the first shell (2),
The circuit part setting is in second housing (4)；Inner wall and second of the air path part setting in the first shell (2)
Between the outer wall of shell (4).
7. spectrum Tube Bundle Monitoring System in underground according to claim 5, it is characterised in that: the second housing (4) is
Explosion-resistant enclosure.
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| CN201810468073.1A CN110501304A (en) | 2018-05-16 | 2018-05-16 | Underground spectrum Tube Bundle Monitoring System |
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Application publication date: 20191126 |