CN108169004A - Radiant temperature field observation system and method in a kind of coal containing methane gas destructive process - Google Patents
Radiant temperature field observation system and method in a kind of coal containing methane gas destructive process Download PDFInfo
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- CN108169004A CN108169004A CN201711430911.8A CN201711430911A CN108169004A CN 108169004 A CN108169004 A CN 108169004A CN 201711430911 A CN201711430911 A CN 201711430911A CN 108169004 A CN108169004 A CN 108169004A
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
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Abstract
The invention discloses radiant temperature field observation system and methods in a kind of coal containing methane gas destructive process, including universal testing machine, coal seam with gas load tank, coal body test specimen, thermal infrared imager and information collecting device, the coal seam with gas load tank and infrared video camera are arranged on universal testing machine, coal body test specimen is placed in coal seam with gas load tank and is adsorbed and is loaded, the infrared video camera is used to acquire the temperature field information of media test specimen under loaded conditions, and the temperature field information of acquisition is transferred to information collecting device, described information harvester is used to recording and storing the temperature field information of media test specimen under loaded conditions.The present invention realizes that the temperature field of coal seam with gas under loaded conditions is observed by thermal infrared imager, and observation area covering coal body test specimen one side, temperature measuring equipment position is adjustable, realizes accurate, comprehensive observation in temperature field in coal seam with gas loading procedure.
Description
Technical field
The invention belongs to mineral engineering, geotechnical engineering scientific research technical field, more particularly to one kind can carry out coal containing methane gas and add
Carry the pilot system and method that radiant temperature field is observed in destructive process.
Background technology
Coal and gas prominent is a kind of commonplace and serious mine disaster, it not only influences coal mine and normally produces,
And the life security of miner is threatened, correct prediction is made to coal and gas prominent, outburst prevention work amount could be reduced, accomplishes weight
Point prevention ensures the safety of coal mine.Convenient and efficient Coal and Gas Outbursts Prediction method is explored, for improving the peace of mine
Entirely, it improves the economic benefit of mine and social benefit has great importance.
Coal and gas prominent process is a Thermal-mechanical Coupling process, occurs to show the change of heat invariably from beginning to end
Change.The variation in coal seam with gas deformation fracture process coal seam with gas temperature field can be as one of prediction coal and gas prominent
Index.The prediction of coal and gas prominent is carried out using coal seam with gas change of temperature field gradient, is to explore coal to dash forward with gas
Go out a kind of new approach of rule.
Although it is all carried out both at home and abroad using the prominent work of coal seam with gas change of temperature field prediction, according to prediction
Method with from the point of view of means, Forecasting Methodology and means not yet full maturity and uniformly do not utilize coal seam with gas temperature field
Variation carries out theoretical research and the experiment basis of outburst prediction.So we it is necessary to enterprising from theoretical and experimental study
The further research and analysis of row.
At present, for the observation of coal temperature field, carry out a large amount of research work, have developed a series of coal temperatures
Field observation system, present Research are as follows：
(1) Chinese patent application No. is 201410220058.7 discloses a kind of using infra-red radiation observation coal petrography crack
The device and method of growth course including the three scalable babinets of section together with thermal infrared imager, computer and fitting, can be completed
Coal petrography cranny development infra-red radiation monitoring test reduces testing crew, solar radiation, temperature change, air flowing and heat source
Deng the influence to coal petrography cranny development process intermediate infrared radiation information, but the device can only observe the temperature of not coal seam with gas
, it can not realize the temperature field observation of coal seam with gas.
Ph.D. Dissertation's " temperature method present Research coal gas absorption solution that in April, (2) 2012 is delivered by Liu Jikun
It is drawn through journey fuel factor experimental study " a kind of coal gas adsorption-desorption process temperature is disclosed in the 2nd trifle of chapter 3 in a text
Measure of the change experimental system, the system mainly include coal gas adsorption and desorption experiment system, temperature measurement system, data acquisition
System, Weighing system and for dry degassing system etc., it can be achieved that in experiment coal seam with gas gas adsorption desorption process temperature
Field measure of the change, but the device is only capable of observation coal seam with gas test specimen top surface temperatures at localized regions field, and can not realize containing gas
Temperature field observation under coal body loading environment.
(3) Chinese patent application No. is 201310141301.1 discloses a kind of coal temperature measuring device and measurement side
Method is formed by absorption tank body, germanium single crystal, dead ring and into and out of gas nozzle, suitable for laboratory carry out coal containing methane gas adsorption-desorption and
The non-contact measurement of the prominent process coal body surface temperature field of simulation, but the device is only capable of carrying out temperature to coal body under natural conditions
Field observation is spent, can not realize temperature field observation of the coal containing methane gas in loading procedure, and temperature measuring device position can not be accurately controlled,
It can not realize accurate comparative analysis during test of many times.
" different burst trend coal sample surface temperature fields and the deformation field evolution spy that (4) 2014 year 2 month was delivered by Lv Yukai
A kind of experiment porch is disclosed in the 1st trifle in a sign " text, which mainly includes loading system, thermal infrared temperature field monitors
System and deformation field monitoring system, can carry out the observation of test specimen temperature field and deformation field, but the system is only capable of being free of
Temperature field observation of the gas coal body in loading procedure can not realize temperature field observation of the coal containing methane gas in loading procedure, and
Temperature measuring device position can not be accurately controlled.
The coal temperature field observation system of the above-mentioned unit of comprehensive analysis, also has the following disadvantages：
(1) can only realize to coal seam with gas temperature observation under natural conditions or not coal containing methane gas in loading procedure
Temperature field observation, can not realize coal seam with gas under loaded conditions temperature field observation；
(2) temperature field observation can only be carried out to the part of coal seam with gas one side, observation area is more limited to, Wu Fashi
The bulk temperature field observation of existing coal seam with gas one side；
(3) temperature measuring equipment position artificially determines, can not accurately control the position for surveying device, can not when leading to test of many times
Accurate comparative analysis.
In conclusion for more accurate, science, the comprehensive temperature observation carried out in coal seam with gas loading procedure, it is anxious
The temperature field observation system under a kind of coal seam with gas loading environment need to be developed, further to study, to explore coal seam with gas
Load the temperature effect and related law in destructive process.
Invention content
In order to overcome the above-mentioned deficiencies of the prior art, the present invention provides a kind of easy to operate, observation conveniently, it can be achieved that containing
Temperature field observation, observation area covering coal body test specimen one side under gas coal body loading environment, temperature measuring equipment position accurately may be used
The system and method for control realizes accurate, comprehensive observation of temperature in coal seam with gas loading procedure.
The technical solution adopted in the present invention is：
Radiant temperature field observation system in a kind of coal containing methane gas destructive process, adds including universal testing machine, coal seam with gas
Tank, coal body test specimen, thermal infrared imager and information collecting device, the coal seam with gas load tank and infrared video camera is carried to be respectively provided with
On universal testing machine, coal body test specimen is placed in coal seam with gas load tank and is adsorbed and is loaded, the infrared photography
Instrument is used to acquire the temperature field information of media test specimen under loaded conditions, and the temperature field information of acquisition is transferred to information collection
Device, described information harvester are used to recording and storing the temperature field information of media test specimen under loaded conditions.
Further, described information harvester uses computer or portable notebook computer.
Further, media gas adsorption pilot system is further included, the media gas adsorption pilot system includes gas
Feedway and vacuum extractor, the gas feedway include high pressure gas tank and gas gas cylinder, and high pressure gas tank enters
It is connected between gas end and gas gas cylinder by pressure duct；The outlet side of high pressure gas tank passes through pressure duct and coal seam with gas
Load tank connects；The high pressure gas tank and the pressure duct upper edge gas circulating direction between gas gas cylinder are sequentially connected in series and set
There are pressure reducing valve, pressure transmitter, three-way valve and control valve；The vacuum extractor includes vacuum pump and vacuum meter, described
Vacuum pump is connected by pressure duct with three-way valve；Vacuum meter is arranged on the pressure duct that pressure duct is connect with three-way valve
On.
Further, the coal seam with gas load tank includes tank body, cover, polishing head and infrared lens, the tank body
It is fixed in detection platform by support base；The cover is bolted on tank body upper end, is provided in the middle part of the cover
One through-hole, one end of the polishing head are arranged in tank body, and the other end passes through the through-hole on cover to extend to outside tank body, the tank
The side of the camera lens face of body and infrared video camera offers circular through hole, and infrared lens are provided in the circular through hole, infrared
Thermal imaging system carries out the media test specimen in tank body by infrared lens the measurement of radiant temperature field；The opposite side lower end of the tank body
Gas filling channel is provided with, the gas filling channel is connect by pressure duct with high pressure gas tank.
Further, the tank body and cover are respectively adopted high pressure nonmetallic materials and are made, and the infrared lens are by flange
With optical crystal eyeglass composition of the mounting on flange；The optical crystal eyeglass is using monocrystalline melt method, vapor phase method, solution
Crystal optic made of method and the preparation of solid phase recrystallization and the anti-reflection technology of multilayer.
Further, the top setting of the tank body is fluted, and sealing ring is embedded in the groove.
Further, the thermal infrared imager positioning device being arranged on universal testing machine, the thermal infrared imager are further included
Positioning device includes two slide bars, sliding blocks and lifts bar, and two slide bars are transversely arranged in parallel, and is loaded positioned at coal seam with gas
Tank rear, the slide bar is fixed on by lantern ring on universal testing machine, and scale is provided on slide bar, and the sliding block is arranged on two
On a slide bar, there are two bar is lifted, the thermal infrared imager is fixed at two and lifts on bar, described for setting on the sliding block
Sliding block is bolted with the bar of lifting, and realizes the high high adjustment for lifting bar.
Radiant temperature field observation procedure in a kind of coal containing methane gas destructive process, includes the following steps：
(1) coal body to be measured is processed into the coal body test specimen of square shape, coal body test specimen is placed on coal seam with gas and is added
It carries in tank；
(2) gas is conveyed into coal seam with gas load tank by coal gas adsorption test system；
(3) infrared video camera and information collecting device are opened, and adjusts the position of infrared video camera, makes the spy of coal body test specimen
Surveying surface can completely be presented in thermal infrared imager；
(4) universal testing machine is opened, under outer lotus loading environment, coal body test piece deformation gassy is destroyed；
(5) information collecting device records, stores the temperature field information of coal seam with gas test specimen in whole process.
Further, in the step (2), the gas pressure value that gas pressure is set as in true stratum, when continuing
Between 48h.
Compared with prior art, the beneficial effects of the invention are as follows：
(1) present invention can realize absorption, the loading of coal body using coal seam with gas load tank, and add for coal seam with gas
Temperature field observation under the conditions of load provides infrared window, and cooperation thermal infrared imager can realize coal seam with gas under loaded conditions
Temperature field observation；Temperature field information synchronous acquisition and record are realized by information acquisition system, realize coal seam with gas loading
Temperature field observation in destructive process；
(2) present invention is adjusted using thermal infrared imager positioning device, positions thermal infrared imager, makes its camera lens face bottle coal
The infrared lens of body load tank 3 are, it can be achieved that the temperature field observation of coal seam with gas under loaded conditions, realizes infrared temperature measurement apparatus
Position accurately controls, accurate comparative analysis when facilitating test of many times；
(3) coal seam with gas load tank is provided with infrared lens, it can be achieved that media test specimen is in infrared lens in the present invention
Complete presentation, the bulk temperature field of certain one side of the media test specimen in tank body is observed convenient for thermal infrared imager, observation area
Comprehensively, completely.
Description of the drawings
Fig. 1 is radiant temperature field observation system structure chart in coal containing methane gas destructive process of the invention；
Fig. 2 is the schematic enlarged-scale view of coal seam with gas load tank, thermal infrared imager and thermal infrared imager positioning device；
Fig. 3 is coal seam with gas load tank sectional view；
Fig. 4 a are coal seam with gas load tank front views；
Fig. 4 b are coal seam with gas load tank side views；
Fig. 4 c are coal seam with gas load tank vertical views；
Fig. 4 d are the isometric test charts of coal seam with gas load tank；
Wherein, 1. universal testing machine；2. coal gas adsorption test system；3. coal seam with gas load tank, 3-1 gas fills
Fill channel, 3-2 tank bodies, 3-3 covers, 3-4 sealing rings, 3-5 bolts, 3-6 polishing heads, 3-7 infrared lens；4. coal body test specimen；5.
Thermal infrared imager；6. information collecting device；7. thermal infrared imager positioning device, 7-1. slide bars, 7-2. sliding blocks, 7-3. lift bar.
Specific embodiment
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.It is unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or combination thereof.
As background technology is introduced, the temperature of coal seam with gas under loaded conditions can not be realized by existing in the prior art
The observation of degree field, the bulk temperature field observation that can not realize coal seam with gas one side, can not accurate comparative analysis deficiency, in order to
The technical issues of solving as above, present applicant proposes radiant temperature field observation system and sides in a kind of coal containing methane gas destructive process
Method.
In a kind of typical embodiment of the application, as shown in Figure 1, providing spoke in a kind of coal containing methane gas destructive process
Temperature field observation system is penetrated, which includes universal testing machine 1, media gas adsorption pilot system 2, coal seam with gas load tank
3rd, coal body test specimen 4, thermal infrared imager 5 and information collecting device 6；The coal seam with gas load tank 3 and infrared video camera 5 are all provided with
It puts on universal testing machine 1, gas is conveyed into coal seam with gas load tank by media gas adsorption pilot system, by coal body
Test specimen 4 is placed in coal seam with gas load tank 3 and is adsorbed and loaded, and acquiring media test specimen 4 by infrared video camera 5 is adding
Temperature field information under the conditions of load；The infrared video camera 5 is connect with information collecting device 6, is recorded by information collecting device 6
With the temperature field information of coal seam with gas test specimen in storage whole process.
In the present embodiment, the universal testing machine 1 uses existing equipment, disclosure satisfy that the maximum of corresponding coal body test specimen
Loading demands.Since universal testing machine is using existing technical pattern, repeat no more in this application.
In the present embodiment, the media gas adsorption pilot system 2, positioned at the left side of universal testing machine, including gas
Feedway and vacuum extractor, the gas feedway include high pressure gas tank and gas gas cylinder, and high pressure gas tank enters
It is connected between gas end and gas gas cylinder by pressure duct；The outlet side of high pressure gas tank passes through pressure duct and coal seam with gas
Load tank connects；The high pressure gas tank and the pressure duct upper edge gas circulating direction between gas gas cylinder are sequentially connected in series and set
There are pressure reducing valve, pressure transmitter, three-way valve and control valve；The vacuum extractor includes vacuum pump and vacuum meter, described
Vacuum pump is connected by pressure duct with three-way valve；Vacuum meter is arranged on the pressure duct that pressure duct is connect with three-way valve
On.Gas is conveyed into coal seam with gas load tank by high pressure gas tank, realizes that the voltage stabilizing to media test specimen is adsorbed.
As shown in Fig. 2, the infrared lens of the camera lens face coal seam with gas load tank of the thermal infrared imager 5, by red
Outer thermal imaging system 5 carries out the measurement in media surface of test piece temperature field, and thermal infrared imager 5 uses Japan TVS-8100MKII in the present invention
Thermal infrared imager, the sensitivity of instrument maximum temperature are 0.025 DEG C, and image resolution ratio is 320 × 240, and Image Acquisition speed is
60p/s。
The thermal infrared imager 5 is arranged on by thermal infrared imager positioning device 7 on universal testing machine, which determines
The connection of the position realization thermal infrared imager of device 7 and universal testing machine is fixed and the positioning of thermal infrared imager；The thermal infrared imager
Positioning device 7 includes two slide bar 7-1, sliding block 7-2 and lifts bar 7-3, and two slide bar 7-1 are transversely arranged in parallel, and be located at
Coal seam with gas load tank rear, the slide bar 7-1 is fixed on by lantern ring on universal testing machine, and is provided on slide bar 7-1
Scale, realization thermal infrared imager and infrared radiation thermometer are accurately positioned；The sliding block 7-2 is arranged on two slide bar 7-1, described
Setting is there are two bar 7-3 is lifted on sliding block 7-2, and the thermal infrared imager 5 is fixed at two and lifts on bar 7-1, the cunning
Block 7-2 is bolted with the bar 7-3 that lifts, and realizes the high high adjustment for lifting bar.Thermal infrared imager is driven by sliding block
It is slid back and forth along litter, realizes the positioning of thermal infrared imager.
It is combined by coal seam with gas load tank 3, thermal infrared imager 5 and thermal infrared imager positioning device 7, by infrared thermal imagery
Instrument positioning device 7 adjusts, positions thermal infrared imager, makes the infrared mirror of the camera lens face gas coal body load tank 3 of thermal infrared imager
Head is, it can be achieved that the temperature field information acquisition of coal seam with gas under loaded conditions.
As shown in figure 3, the coal seam with gas load tank 3 includes tank body 3-1, cover 3-2, polishing head 3-6 and infrared mirror
Head 3-7, the tank body are fixed on by support base in detection platform；The cover is bolted on tank body upper end, the spiral shell
Bolt is the bolt of trough of belt A grade of turret head head M3 × 6 and A grades of M3 nuts of hexagonal closely-pitched, for universal standard part；The top of the tank body
The groove of a diameter of 2mm is provided with, sealing ring is embedded in the groove, realizes the close connection of tank body and cover；The tank
Lid middle part is provided with the through-hole of a diameter of 15mm, and one end of the polishing head is arranged in tank body, and the other end is passed through on cover
Through-hole is extended to outside tank body, and the circle that the side of the camera lens face of the tank body and infrared video camera offers a diameter of 55mm is led to
Hole is provided with infrared lens in the circular through hole, carries out the survey of radiant temperature field to the coal sample in tank body convenient for thermal infrared imager
Amount；Thermal infrared imager carries out the media test specimen in tank body by infrared lens the measurement of radiant temperature field；The tank body it is another
Side lower end is provided with gas filling channel, and the gas filling channel is connect by pressure duct with high pressure gas tank.
Front view, side view, vertical view and the isometric test chart of the coal seam with gas load tank are as shown in figures 4a-4d.
In the present embodiment, the tank body is formed by the very low high pressure process for un-metal material of thermal conductivity factor, meet experiment intensity, just
Degree requirement；The cover meets the intensity of experiment, rigidity is wanted to be formed by the very low high pressure process for un-metal material of thermal conductivity factor
It asks.
In the present embodiment, optical crystal mirror of the infrared lens by the rotatable flange of aluminium alloy and mounting on flange
Piece forms；The infrared lens, which have the characteristics that replace, checks convenient, good leak tightness；The optical crystal eyeglass is melts using monocrystalline
Body method, vapor phase method, solwution method and solid phase recrystallize crystal optic made of preparation and the anti-reflection technology of multilayer, and infrared light transmission exists
It is more than 93% at 0-250 DEG C, meets the requirement of infrared light transmission, crystal compression strength is 85N/cm, meets intensity requirement.
In the present embodiment, the coal body test specimen 4 is the square test specimen being process by coal body, size for 35mm ×
35mm × 35mm, the sample dimensions may be implemented in the complete presentation in infrared lens.
In the present embodiment, described information harvester 6 uses computer or portable notebook computer；The information collection
Device is by USB data line and infrared video camera, for recording and storing the radiation temperature of coal seam with gas test specimen in whole process
Spend field data.
The course of work of radiant temperature field observation system in coal containing methane gas destructive process：
The coal body test specimen processed is placed in coal seam with gas load tank, by coal gas adsorption test system to
Conveying gas in coal seam with gas load tank, opens infrared video camera and information collecting device, with thermal infrared imager positioning device
Thermal infrared imager position is adjusted, the searching surface of coal body test specimen is enable completely to be presented in thermal infrared imager；Open universal test
Under outer lotus loading environment, coal seam with gas test piece deformation is destroyed for machine, records and store entire mistake by information collecting device
The temperature field data of coal seam with gas test specimen in journey.
Radiant temperature field observation system in the coal containing methane gas destructive process that the embodiment of the present invention proposes, using coal seam with gas
Load tank 3 can realize the absorption of coal body, loading, and observe for coal seam with gas temperature field under loaded conditions provide it is infrared
Window, cooperation thermal infrared imager 5 can realize the temperature field observation of coal seam with gas under loaded conditions；Pass through information acquisition system
6 realize more physical quantity information synchronous acquisitions and record；Thermal infrared imager and omnipotent examination are realized using thermal infrared imager positioning device
That tests machine connects fixed and thermal infrared imager positioning.
In another exemplary embodiment of the application, provide radiant temperature field in a kind of coal containing methane gas destructive process and see
Survey method, includes the following steps：
(1) coal body to be measured is processed into the coal body test specimen of square shape, coal body test specimen is placed on coal seam with gas and is added
It carries in tank；
(2) gas is conveyed into coal seam with gas load tank by coal gas adsorption test system；
(3) infrared video camera and information collecting device are opened, and adjusts the position of infrared video camera, makes the spy of coal body test specimen
Surveying surface can completely be presented in thermal infrared imager；
(4) universal testing machine is opened, under outer lotus loading environment, coal body test piece deformation gassy is destroyed；
(5) information collecting device records, stores the temperature field information of coal seam with gas test specimen in whole process.
In the present embodiment, the step (2), the gas pressure value that gas pressure is set as in true stratum continues
Time 48h.
Above-mentioned, although the foregoing specific embodiments of the present invention is described with reference to the accompanying drawings, not protects model to the present invention
The limitation enclosed, those skilled in the art should understand that, based on the technical solutions of the present invention, those skilled in the art are not
Need to make the creative labor the various modifications or changes that can be made still within protection scope of the present invention.
Claims (9)
1. radiant temperature field observation system in a kind of coal containing methane gas destructive process, it is characterized in that, including universal testing machine, containing gas
Coal body load tank, coal body test specimen, thermal infrared imager and information collecting device, the coal seam with gas load tank and infrared video camera
It is arranged on universal testing machine, coal body test specimen is placed in coal seam with gas load tank and is adsorbed and is loaded, it is described red
Outer video camera is used to acquire the temperature field information of media test specimen under loaded conditions, and the temperature field information of acquisition is transferred to letter
Harvester is ceased, described information harvester is used to recording and storing the temperature field information of media test specimen under loaded conditions.
2. radiant temperature field observation system in coal containing methane gas destructive process according to claim 1, it is characterized in that, the letter
It ceases harvester and uses computer or portable notebook computer.
3. radiant temperature field observation system in coal containing methane gas destructive process according to claim 1, it is characterized in that, it further includes
Media gas adsorption pilot system, the media gas adsorption pilot system include gas feedway and vacuum extractor, institute
It states gas feedway and includes high pressure gas tank and gas gas cylinder, pass through height between the air inlet end of high pressure gas tank and gas gas cylinder
Press pipeline connection；The outlet side of high pressure gas tank is connect by pressure duct with coal seam with gas load tank；The high pressure gas
Tank and the pressure duct upper edge gas circulating direction between gas gas cylinder are sequentially connected in series equipped with pressure reducing valve, pressure transmitter, three
Port valve door and control valve；The vacuum extractor includes vacuum pump and vacuum meter, and the vacuum pump passes through pressure duct and three
Port valve door connects；Vacuum meter is arranged on the pressure duct that pressure duct is connect with three-way valve.
4. radiant temperature field observation system in coal containing methane gas destructive process according to claim 1, it is characterized in that, it is described to contain
Gas coal body load tank includes tank body, cover, polishing head and infrared lens, and the tank body is fixed on detection platform by support base
On；The cover is bolted on tank body upper end, is provided with a through-hole in the middle part of the cover, one end of the polishing head is set
It puts in tank body, the other end passes through the through-hole on cover to extend to outside tank body, the camera lens face of the tank body and infrared video camera
Side offer circular through hole, infrared lens are provided in the circular through hole, thermal infrared imager is by infrared lens to tank body
Interior media test specimen carries out the measurement of radiant temperature field；The opposite side lower end of the tank body is provided with gas filling channel, described
Gas filling channel is connect by pressure duct with high pressure gas tank.
5. radiant temperature field observation system in coal containing methane gas destructive process according to claim 4, it is characterized in that, the tank
Body and cover are respectively adopted high pressure nonmetallic materials and are made, optical crystal of the infrared lens by flange and mounting on flange
Eyeglass forms；The optical crystal eyeglass is to recrystallize preparation and multilayer using monocrystalline melt method, vapor phase method, solwution method and solid phase
Crystal optic made of anti-reflection technology.
6. radiant temperature field observation system in coal containing methane gas destructive process according to claim 4, it is characterized in that, the tank
The top setting of body is fluted, and sealing ring is embedded in the groove.
7. radiant temperature field observation system in coal containing methane gas destructive process according to claim 1, it is characterized in that, it further includes
The thermal infrared imager positioning device being arranged on universal testing machine, the thermal infrared imager positioning device include two slide bars, cunnings
Block and bar is lifted, two slide bars are transversely arranged in parallel, and positioned at coal seam with gas load tank rear, and the slide bar passes through lantern ring
It is fixed on universal testing machine, and scale is provided on slide bar, the sliding block is arranged on two slide bars, is set on the sliding block
There are two bar is lifted, the thermal infrared imager is fixed at two and lifts on bar, and the sliding block passes through spiral shell with the bar of lifting
It tethers and connects, realize the high high adjustment for lifting bar.
8. a kind of radiant temperature field observation system in coal containing methane gas destructive process using described in any one of claim 1-7
Observation procedure, it is characterized in that, include the following steps：
(1) coal body to be measured is processed into the coal body test specimen of square shape, coal body test specimen is placed on coal seam with gas load tank
It is interior；
(2) gas is conveyed into coal seam with gas load tank by coal gas adsorption test system；
(3) infrared video camera and information collecting device are opened, and adjusts the position of infrared video camera, makes the detection table of coal body test specimen
Face can be completely presented in thermal infrared imager；
(4) universal testing machine is opened, under outer lotus loading environment, coal body test piece deformation gassy is destroyed；
(5) information collecting device records, stores the temperature field information of coal seam with gas test specimen in whole process.
9. the observation procedure of radiant temperature field observation system in the destructive process according to claim 8 using coal containing methane gas,
It is characterized in that in the step (2), the gas pressure value that gas pressure is set as in true stratum, duration 48h.
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| CN201711430911.8A CN108169004B (en) | 2017-12-26 | 2017-12-26 | System and method for observing radiation temperature field in process of destroying gas-containing coal |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110146379A (en) * | 2019-06-02 | 2019-08-20 | 东北大学 | A kind of gassiness coal petrography load rupture fuel factor observation device and method |
| CN111579378A (en) * | 2020-07-07 | 2020-08-25 | 河南理工大学 | Device for monitoring surface temperature change during loading and cracking of gas-containing coal rock |
| CN112781974A (en) * | 2021-01-06 | 2021-05-11 | 安徽理工大学 | Soaking-drying cycle mechanics experiment auxiliary box |
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