CN106198586A - A kind of absorption lower small-angle scattering research coal petrography thermal fracture device and method - Google Patents
A kind of absorption lower small-angle scattering research coal petrography thermal fracture device and method Download PDFInfo
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- CN106198586A CN106198586A CN201610590049.6A CN201610590049A CN106198586A CN 106198586 A CN106198586 A CN 106198586A CN 201610590049 A CN201610590049 A CN 201610590049A CN 106198586 A CN106198586 A CN 106198586A
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- G—PHYSICS
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
- G01N23/20—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by using diffraction of the radiation by the materials, e.g. for investigating crystal structure; by using scattering of the radiation by the materials, e.g. for investigating non-crystalline materials; by using reflection of the radiation by the materials
- G01N23/201—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by using diffraction of the radiation by the materials, e.g. for investigating crystal structure; by using scattering of the radiation by the materials, e.g. for investigating non-crystalline materials; by using reflection of the radiation by the materials by measuring small-angle scattering
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- G01N2223/05—Investigating materials by wave or particle radiation by diffraction, scatter or reflection
- G01N2223/054—Investigating materials by wave or particle radiation by diffraction, scatter or reflection small angle scatter
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Abstract
A kind of absorption lower small-angle scattering research coal petrography thermal fracture device and method, belongs to small-angle scattering technical field.Diamond wafers couples with sample bin and is connected, and sample bin is positioned at and adds the coupling of hot plate central authorities and be fixed on adiabatic cylinder central part, and with heating panel surface contact slide;Light portal and light-emitting window, sample bin beam path alignment are good, it is positioned on same level line, ray passes through light portal, through ray channel, sample bin arrives at light-emitting window, and light portal and light-emitting window Kapton film block, diamond wafers and Kapton film use glue special to carry out seamless bonding, are fixed in sample bin both sides;Adding hot plate to be connected through wound clockwise formula by coil, temperature sensor is placed in heating panel surface and contacts, and adsorbed gas is arrived at pore by air inlet entrance and diffused to sample bin.The present invention has filled up the shortage of the porous media experimental facilitiess under the conditions of High Temperature High Pressure multi-scenarios method superposition such as small-angle scattering Study on Coal, shale.
Description
Technical field
The present invention relates to a kind of absorption lower small-angle scattering research coal petrography thermal fracture device and method, belong to small-angle scattering technology
Field.
Background technology
Porous media material pore character characterizes the focus that always advanced material focuses on.The nanoaperture such as coal, shale is tied
Structure is up to nanoscale, and conventional method is difficult to characterize this, and nanoaperture structure change in coal high temperature pyrolysis process coal
Relate to the problem in science such as coal bed gas shale gas and nuclear waste storage.The method of the conventional detection hole that presently, there are mainly has two
Kind, one is flow process, as nitrogen adsorption methods and nuclear magnetic resonance, NMR, mercury injection method record pore structure;Two is ray method, such as Flied emission
Electronic Speculum SEM, transmission electron microscope TEM obtain RESERVOIR PORE STRUCTURE, and above-mentioned traditional method can only record the perforate of hole, to closed pore
It is difficult to detection, and can only be in order to characterize the pore structure characteristic under the porous medias such as danks under room temperature, let alone
The sign of micropore structure change under temperature field and gases at high pressure ambient conditions;And small-angle scattering includes neutron scattering, X-ray
Small-angle scattering be Non-Destructive Testing be nanoscale hole characterize bring new thinking, it can be at conventional single field room temperature and atmospheric pressure
The pore structure of lower detection 1~100nm, but by experimental facilities, device is limited surveys nanoaperture structure under many environment
Quantity research is less, causes the nanoaperture structure Changeement under atmosphere and high temperature action to remain blank.Based on above-mentioned
Situation, can apply temperature field, gases at high pressure atmosphere environment field in the urgent need to one, and device entirety perforation light transmission is good and can hold
Carry the device research and development of high temperature and high pressure gas, low cost, easy and simple to handle, and then realize the porous such as small-angle scattering field coal, shale and be situated between
Matter field absorption anamorphic effect and high-temperature hot destroy lower pore structure variation characteristic research, it is achieved multi-scenarios method.
Summary of the invention
In order to overcome the deficiencies in the prior art, the present invention provides a kind of absorption lower small-angle scattering research coal petrography thermal fracture device
And method.
A kind of absorption lower small-angle scattering research coal petrography thermal fracture device, including: light portal, light-emitting window, thin diamond
Sheet, Kapton film, sample bin, air inlet, coil, add hot plate, adiabatic cylinder, temperature sensor, pore, ray channel, diamond
Thin slice couples with sample bin and is connected, and sample bin is positioned at and adds the coupling of hot plate central authorities and be fixed on adiabatic cylinder central part, and with add hot plate
Surface contact slide;Light portal with light-emitting window, sample bin beam path alignment well, is positioned on same level line, and ray passes through
Light portal, through ray channel, sample bin arrives at light-emitting window, and light portal and light-emitting window Kapton film seal
Stifled, diamond wafers and Kapton film use glue special to carry out seamless bonding, are fixed in sample bin both sides;Add hot plate and pass through line
Enclosing and connect through wound clockwise formula, temperature sensor is placed in heating panel surface and contacts, and adsorbed gas is entered by air inlet
Arrive at pore and diffuse to sample bin.
Diamond wafers according to X-ray line the penetration capacity of sample and its molten boiling point and heat stability comprehensive consideration chosen and
, diamond wafers X-ray transparent is functional, and intensity will not decay more than 35%, and diamond wafers in high temperature environments can
Enough bearing pressure, diamond wafers is its stable in properties under high temperature action, and the physical changes such as thawing, simultaneously its chemistry will not occur
Character is the most stable, will not react with multiple gases.
Sample bin is that Small Cylindrical body is made up of steel alloy, has the Heat stability is good under experiment condition, and it is embedded in and adds
Hot plate is central and adds hot plate Radial Coupling, and central axis becomes 90 degree with heating disk, and diamond wafers and Kapton film use special
Carry out seamless bonding with glue, be fixed in sample bin both sides.
Adding hot plate and use series system, adding hot plate temperature resistant range is 0 DEG C~450 DEG C, and heating rate is multistage adjustable, adds hot plate
Center reserves a hollow small-sized hollow cylinder, and its thickness is 4 centimetres, the diameter outside the guarantee of its diameter and sample bin
Coupling, it is achieved butt coupling.
Described adiabatic cylinder built-in sensors, adiabatic cylinder both sides have light portal, light-emitting window, use diamond wafers auxiliary
Carry out airtight with Kapton film.
A kind of absorption lower small-angle scattering research coal petrography thermal fracture method, uses one absorption lower small-angle scattering research coal petrography heat
Apparatus for breaking, comprises the steps:
Step a, according under the conditions of the different atmosphere of required research sample multiple physical field coupling, by diamond chip with
Kapton film bonding is installed on sample bin both sides, utilizes tweezers to be placed in sample bin by sample to be studied, and sample bin passes through screw
Air-tightness is ensured under the effect of sealing ring;
Step b, being connected with stand-by gas cylinder by air inlet, be placed in and reserved add hot plate central part, sample bin entirety is embedded in
Add hot plate central authorities and add hot plate Radial Coupling;
Step c, light portal and light-emitting window use diamond wafers be aided with Kapton film carry out airtight;
Step d, according to user study purpose and means, select different physical field patterns, be used alone gas absorption mould
Formula or select different temperature ranges and different stage heating rate pattern, also or absorption mode and heating mode act on simultaneously
Mode, according to the physical field pattern selected, opens stand-by gas cylinder and slowly regulates air pressure, or unlatching adds hot plate mode of operation and carries out
Heat up;
Step e, operation small-angle scattering experimental system so that X-ray passes through ray channel, punctures sample generation small-angle scattering
Scattering, simultaneously record temperature sensor registration and gas pressure value;
Step f, combine small-angle scattering experimental system, extract every test data, remove device the most in reverse order, and
Properly preserve.
Compared with relevant apparatus, present invention have the advantage that
There is sample bin, diamond wafers, add hot plate, temperature sensor, each compact conformation, reasonable in design, install simple;
Diamond wafers selection is that 0.3mm is thick, the thin slice of a diameter of 10mm, sample bin be Small Cylindrical body its be embedded in and add hot plate central authorities
With add hot plate Radial Coupling, adding hot plate temperature resistant range is 0 DEG C~450 DEG C, and heating rate is multistage adjustable, it is achieved that sample uniformly adds
The purpose of heat;Sample bin with enter light-emitting window to realizing collimated light path after light, the decay of x-ray light transmission is less.At sample bin two
Diamond wafers realize printing opacity under high pressure conditions and carrying effect, and prevent under high temperature action, conventional printing opacity envelope
Stifled material softening disintegrates the drawback of large deformation.Achieve that High Temperature High Pressure is single or the porous such as coal, shale under multi-scenarios method superposition
Medium heat ruptures, the research that nanoscale pore structure changes.The porous medias such as small-angle scattering Study on Coal, shale are filled up at height
The shortage of the experimental facilities under the conditions of temperature high pressure multi-scenarios method superposition.
Accompanying drawing explanation
When considered in conjunction with the accompanying drawings, by referring to detailed description below, it is possible to be more completely more fully understood that the present invention with
And easily learn the advantage that many of which is adjoint, but accompanying drawing described herein is used for providing a further understanding of the present invention,
Constituting the part of the present invention, the schematic description and description of the present invention is used for explaining the present invention, is not intended that this
Bright improper restriction, such as figure wherein:
Fig. 1 is a kind of profile adsorbing lower small-angle scattering research coal petrography thermal fracture device of the present invention;
Fig. 2 is the A-A part sectioned view in Fig. 1.
In figure: 1 light portal;2 light-emitting windows;3 diamond wafers;4 Kapton films;5 sample bins;6—
Air inlet;7 coils;8 add hot plate;9 adiabatic cylinders;10 temperature sensors;11 pores;12 rays.
The present invention is further described with embodiment below in conjunction with the accompanying drawings.
Detailed description of the invention
Obviously, those skilled in the art belong to the guarantor of the present invention based on the many modifications and variations that spirit of the invention is done
Protect scope.
Those skilled in the art of the present technique are appreciated that unless expressly stated, singulative used herein " ", "
Individual ", " described " and " being somebody's turn to do " may also comprise plural form.It is to be further understood that the wording used in this specification " bag
Include " refer to there is described feature, integer, step, operation, element and/or assembly, but it is not excluded that existence or add one or
Other features multiple, integer, step, operation, element, assembly and/or their group.It should be understood that when claiming element, assembly quilt
When ' attach ' to another element, assembly, it can be directly connected to other elements or assembly, or can also there is cental element
Part or assembly.Wording "and/or" used herein includes that one or more any cell listing item being associated is with complete
Portion combines.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, and all terms used herein (include technology art
Language and scientific terminology) have with the those of ordinary skill in art of the present invention be commonly understood by identical meaning.Also should
Being understood by, those terms defined in such as general dictionary should be understood that the meaning having with the context of prior art
The meaning that justice is consistent, and unless defined as here, will not explain by idealization or the most formal implication.
For ease of the understanding to the embodiment of the present invention, explanation will be further explained below, and each embodiment will be not
Constitute the restriction to the embodiment of the present invention.
Embodiment 1: as shown in Figure 1 and Figure 2, the purpose of the embodiment of the present invention is that proposing the lower small-angle scattering of a kind of absorption grinds
Study carefully coal petrography thermal fracture device, by light portal, light-emitting window, diamond wafers, Kapton film, sample bin, air inlet, line
Circle, add hot plate, adiabatic cylinder, temperature sensor, pore, ray channel carry out sequential combination, especially, use diamond wafers to make
For X-ray light transmissive material and gases at high pressure supporting body, and diamond wafers is coupled with sample bin it is connected, it is ensured that air-tightness is good
Good.Adding hot plate middle position additionally, be placed in by sample bin, it is embedded in and adds hot plate central authorities and add hot plate Radial Coupling, sample bin
Central axis becomes 90 degree with heating disk.Realize sample uniformly to heat, the porous media thermal fractures such as danks that reach a high temperature grind with
And under temperature field coupling superposition, the porous media such as coal and rock grinds under the research of Porous Medium Adsorption anamorphic effect, even gaseous environment
The purpose studied carefully.
Embodiment 2: the present invention adopts the following technical scheme that a kind of absorption lower small-angle scattering research coal petrography thermal fracture device,
Including: light portal 1, light-emitting window 2, diamond wafers 3, Kapton film 4, sample bin 5, air inlet 6, coil 7, add hot plate 8,
Adiabatic cylinder 9, temperature sensor 10, pore 11, ray channel 12, described diamond wafers 3 couples with sample bin 5 and is connected, described
Sample bin 5 is positioned at and adds the coupling of hot plate 8 central authorities and be fixed on described adiabatic cylinder 9 central part, and with add hot plate 8 surface contact slide;
Described light portal 1 is good with light-emitting window 2 sample bin 5 beam path alignment, and ray passes through light portal 1, through ray channel 12, sample
Light-emitting window 2 is arrived in product storehouse 5, and light portal 1 and light-emitting window 2 Kapton film block.Described diamond wafers 3 with
Kapton film 4 uses glue special to carry out seamless bonding, is fixed in sample bin 5 both sides.Add hot plate 8 by coil 7 through clockwise
Wound form connects, and described temperature sensor 10 is placed in and adds hot plate 8 surface and contact, and adsorbed gas is entered by air inlet 6 and supports
Reach pore 11 and diffuse to sample bin 5.
Preferably, diamond wafers 3 be this device materials select key scientific problems, its according to X-ray line to sample
Penetration capacity and its molten boiling point and heat stability comprehensive consideration are chosen and are obtained.First, diamond wafers X, neutron ray permeability
Can be good, intensity will not decay more than 35%, and secondly diamond can bear pressure in high temperature environments, and diamond is made at high temperature
By its stable in properties lower, the physical changes such as thawing will not occur, its chemical property is the most stable simultaneously, will not send out with multiple gases
Raw reaction.
Preferably, described sample bin 5 is made up of steel alloy for Small Cylindrical body, has the heat stability under experiment condition
Good, it is embedded in and adds hot plate 8 central authorities and add hot plate Radial Coupling, sample bin central axis with add hot plate and become 90 degree, described Buddha's warrior attendant
Stone thin slice 3 and Kapton film 4 use glue special to carry out seamless bonding, are fixed in sample bin 5 both sides.
Preferably, described in add hot plate 8 and be connected in series through wound clockwise formula by coil 7, adding hot plate temperature resistant range is 0 DEG C
~450 DEG C, heating rate is multistage adjustable.Heating disk center reserves a hollow small-sized hollow cylinder, and its thickness is 4 lis
Rice, the diameter matches outside the guarantee of its diameter and sample bin, it is achieved butt coupling.
The invention allows for a kind of absorption lower small-angle scattering research coal petrography thermal fracture method, apply said apparatus, its bag
Include following experimental procedure:
A, according to the multiple physical field coupling of sample under the conditions of the different atmosphere of required research, by diamond chip and Kapton film
Bonding is installed on sample bin both sides, utilizes tweezers to be placed in sample bin by sample to be studied, and sample bin passes through screw at sealing ring
Effect under ensure air-tightness;
B, being connected with stand-by gas cylinder by air inlet, be placed in and reserved add hot plate central part, sample bin entirety is embedded in heating
Dish 8 is central and adds hot plate Radial Coupling;
C, light portal and light-emitting window use diamond wafers be aided with Kapton film carry out airtight;
D, according to user study purpose and means, select different physical field patterns, be used alone gas absorption pattern or
Select different temperature ranges and different stage heating rate pattern, also or the side that simultaneously acts on heating mode of absorption mode
Formula, according to the physical field pattern selected, opens stand-by gas cylinder and slowly regulates air pressure, or unlatching adds hot plate mode of operation and rises
Temperature;
E, operation small-angle scattering experimental system so that X-ray passes through ray channel, puncture sample generation small-angle scattering and dissipate
Penetrate, simultaneously record temperature sensor registration and gas pressure value;
F, combine small-angle scattering experimental system, extract every test data, remove device the most in reverse order, and properly
Preserve.
Embodiment 3: combine shown in Fig. 1, a kind of absorption lower small-angle scattering research coal petrography thermal fracture device, light portal 1, go out
Light window 2, diamond wafers 3, Kapton film 4, sample bin 5, air inlet 6, coil 7, add hot plate 8, adiabatic cylinder 9, temperature sensing
Device 10, pore 11, ray channel 12, described diamond wafers 3 couples with sample bin 5 and is connected, and described sample bin 5 is positioned at and adds hot plate
Described adiabatic cylinder 9 central part is fixed in the coupling of 8 central authorities, and with add hot plate 8 surface contact slide;Described light portal 1 with go out
Light window 2 sample bin 5 beam path alignment is good, is positioned on same level line, and ray passes through light portal 1, through ray channel 12, sample
Light-emitting window 2 is arrived in product storehouse 5, and light portal 1 and light-emitting window 2 Kapton film block.Described diamond wafers 3 with
Kapton film 4 uses glue special to carry out seamless bonding, is fixed in sample bin 5 both sides.Add hot plate 8 by coil 7 through clockwise
Wound form connects, and described temperature sensor 10 is placed in and adds hot plate 8 surface and contact.Adsorbed gas is entered by air inlet 6 and supports
Reach pore 11 and diffuse to sample bin 5.
Shown in Fig. 2, after assembling the complete present invention, the porous scattering medium such as coal, shale is prepared as powder or
Lamellar loads sample bin 5, uses bolt to carry out sample bin 5 afterwards airtight, is then connect by airway and sample bin 5,
Be installed on add hot plate 8 middle position realize Radial Coupling connect.After light is adjusted by the adiabatic cylinder 9 of closedown afterwards, high temperature can be realized
Small-angle scattering research under gases at high pressure.
Its experimental procedure approximately as:
A, according to the multiple physical field coupling of sample under the conditions of the different atmosphere of required research, by diamond chip and Kapton film
4 bondings are installed on sample bin 5 both sides, utilize tweezers to be placed in sample bin 5 by sample to be studied, and sample bin 5 passes through screw close
Air-tightness is ensured under the effect of seal;
B, being connected with stand-by gas cylinder by air inlet 6, be placed in and reserved add hot plate 8 central part, sample bin 5 entirety is embedded in and adds
Hot plate 88 is central and adds hot plate 8 Radial Coupling;
C, light portal 1 and light-emitting window 2 use diamond wafers 3 be aided with Kapton film 4 carry out airtight;
D, according to user study purpose and means, select different physical field patterns, be used alone gas absorption pattern or
Select different temperature ranges and different stage heating rate pattern, also or the side that simultaneously acts on heating mode of absorption mode
Formula, according to the physical field pattern selected, opens stand-by gas cylinder and slowly regulates air pressure, or unlatching adds hot plate 8 mode of operation and carries out
Heat up;
E, operation small-angle scattering experimental system so that X-ray 12, by ray channel, punctures sample generation small-angle scattering and dissipates
Penetrate, simultaneously record temperature sensor 10 registration and gas pressure value;
F, combine small-angle scattering experimental system, extract every test data, remove device the most in reverse order, and properly
Preserve.
As it has been described above, embodiments of the invention are explained, but as long as essentially without departing from this
Bright inventive point and effect can have a lot of deformation, and this will be readily apparent to persons skilled in the art.Therefore, this
Within the variation of sample is also integrally incorporated in protection scope of the present invention.
Claims (6)
1. an absorption lower small-angle scattering research coal petrography thermal fracture device, it is characterised in that including: light portal, light-emitting window,
Diamond wafers, Kapton film, sample bin, air inlet, coil, add hot plate, adiabatic cylinder, temperature sensor, pore, ray lead to
Road, diamond wafers couples with sample bin and is connected, and sample bin is positioned at and adds the coupling of hot plate central authorities and be fixed on adiabatic cylinder central part, and
With heating panel surface contact slide;Light portal with light-emitting window, sample bin beam path alignment well, is positioned on same level line,
Ray passes through light portal, and through ray channel, sample bin arrives at light-emitting window, and light portal and light-emitting window Kapton film
Blocking, diamond wafers and Kapton film use glue special to carry out seamless bonding, are fixed in sample bin both sides;Add hot plate
Being connected through wound clockwise formula by coil, temperature sensor is placed in heating panel surface and contacts, and air inlet is passed through in adsorbed gas
Mouth entrance is arrived at pore and is diffused to sample bin.
A kind of absorption the most according to claim 1 lower small-angle scattering research coal petrography thermal fracture device, it is characterised in that: Buddha's warrior attendant
The penetration capacity of sample and its molten boiling point and heat stability comprehensive consideration are chosen and are obtained, thin diamond according to X-ray line by stone thin slice
Sheet X-ray transparent is functional, and intensity will not decay more than 35%, and diamond wafers can bear pressure in high temperature environments,
Diamond wafers is its stable in properties under high temperature action, and the physical changes such as thawing will not occur, and its chemical property is the most steady simultaneously
Fixed, will not react with multiple gases.
A kind of absorption the most according to claim 1 lower small-angle scattering research coal petrography thermal fracture device, it is characterised in that: sample
Storehouse is that Small Cylindrical body is made up of steel alloy, has the Heat stability is good under experiment condition, and it is embedded in and adds hot plate central authorities and add
Hot plate Radial Coupling, central axis becomes 90 degree with heating disk, and diamond wafers and Kapton film use glue special to carry out nothing
Gap bonds, and is fixed in sample bin both sides.
A kind of absorption the most according to claim 1 lower small-angle scattering research coal petrography thermal fracture device, it is characterised in that: heating
Dish uses series system, and adding hot plate temperature resistant range is 0 DEG C~450 DEG C, and heating rate is multistage adjustable, and heating disk center reserves one
Hollow small-sized hollow cylinder, its thickness is 4 centimetres, the diameter matches outside the guarantee of its diameter and sample bin, it is achieved coupling
Close docking.
A kind of absorption the most according to claim 1 lower small-angle scattering research coal petrography thermal fracture device, it is characterised in that: described
Adiabatic cylinder built-in sensors, adiabatic cylinder both sides have light portal, light-emitting window, use diamond wafers to be aided with Kapton film
Carry out airtight.
6. an absorption lower small-angle scattering research coal petrography thermal fracture method, it is characterised in that use as arbitrary in claim 1 to 5
A kind of absorption lower small-angle scattering research coal petrography thermal fracture device described in Xiang, comprises the steps:
Step a, according to the multiple physical field coupling of sample under the conditions of the different atmosphere of required research, by diamond chip and Kapton film
Bonding is installed on sample bin both sides, utilizes tweezers to be placed in sample bin by sample to be studied, and sample bin passes through screw at sealing ring
Effect under ensure air-tightness;
Step b, being connected with stand-by gas cylinder by air inlet, be placed in and reserved add hot plate central part, sample bin entirety is embedded in heating
Dish is central and adds hot plate Radial Coupling;
Step c, light portal and light-emitting window use diamond wafers be aided with Kapton film carry out airtight;
Step d, according to user study purpose and means, select different physical field patterns, be used alone gas absorption pattern or
Select different temperature ranges and different stage heating rate pattern, also or the side that simultaneously acts on heating mode of absorption mode
Formula, according to the physical field pattern selected, opens stand-by gas cylinder and slowly regulates air pressure, or unlatching adds hot plate mode of operation and rises
Temperature;
Step e, operation small-angle scattering experimental system so that X-ray passes through ray channel, puncture sample generation small-angle scattering and dissipate
Penetrate, simultaneously record temperature sensor registration and gas pressure value;
Step f, combine small-angle scattering experimental system, extract every test data, remove device the most in reverse order, and properly
Preserve.
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CN106950236A (en) * | 2017-05-17 | 2017-07-14 | 中国工程物理研究院核物理与化学研究所 | A kind of device for the quick localizing sample position of neutron small angle scattering spectrometer |
CN110174355A (en) * | 2019-07-02 | 2019-08-27 | 河南理工大学 | Height have enough to eat and wear gas analysis coal microstructure card form original position pond and its working method |
CN110174355B (en) * | 2019-07-02 | 2023-11-03 | 河南理工大学 | Card type in-situ pond for analyzing coal microcrystal structure by high-temperature saturated gas and working method thereof |
CN110927203A (en) * | 2019-12-25 | 2020-03-27 | 重庆大学 | Long coal petrography sample gas-liquid temperature rise adsorption expansion test chamber |
CN110927203B (en) * | 2019-12-25 | 2020-10-27 | 重庆大学 | Long coal petrography sample gas-liquid temperature rise adsorption expansion test chamber |
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