CN107437364A - A kind of Permeability Oe Coal And Porous Rock And Fractured Rock teaching experimental equipment and method - Google Patents
A kind of Permeability Oe Coal And Porous Rock And Fractured Rock teaching experimental equipment and method Download PDFInfo
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- CN107437364A CN107437364A CN201710740414.1A CN201710740414A CN107437364A CN 107437364 A CN107437364 A CN 107437364A CN 201710740414 A CN201710740414 A CN 201710740414A CN 107437364 A CN107437364 A CN 107437364A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B25/00—Models for purposes not provided for in G09B23/00, e.g. full-sized devices for demonstration purposes
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a kind of Permeability Oe Coal And Porous Rock And Fractured Rock teaching experimental equipment, including ejector, guiding trestle and experimental bench, the ejector includes cylinder, compression head, flexible inner cylinder, piston, compression spring and pull bar, inner barrel is anterior to be provided with flexible inner cylinder, the interior forward end of the front end connector drum of flexible inner cylinder, the front end face of the rear end connection piston of flexible inner cylinder, the rear end cylinder lever connecting rod and compression spring of piston, the spring base of the rear end connector drum rear end of compression spring；The front end center of cylinder is provided with compression head, and compression head diameter is less than cylinder, compresses head inner hollow, rear end connection cylinder, front end is provided with an aperture；Guiding trestle is arranged on the top of experimental bench, and guiding trestle is made up of four oblique framves and a sliding sleeve；The present invention is simple in construction, and cost is low, the area that can be transmitted by visually intuitively observing jet, and the area transmitted embodies the size of Permeability Oe Coal And Porous Rock And Fractured Rock, and visualization is high, suitable for teaching experiment and demonstration.
Description
Technical field
The present invention relates to a kind of teaching equipment, specifically a kind of Permeability Oe Coal And Porous Rock And Fractured Rock teaching experimental equipment.
Background technology
Coal has been described as the gold of black, industrial grain, the master that human world uses since it was 18th century by people
One of energy is wanted, it is after all at present and following very long although the value of coal is much worse than in the past since 21st century
One of indispensable energy source of the production and living of coal or our mankind within a period of time, the supply of coal also relation
To the stabilization of industrial or even entire society's every aspect the development in China, the supply security problem of coal is also China's energy peace
A most important ring in complete.
Coal resources in China is enriched, and other each provinces and regions are distributed in addition to Shanghai, but distributed pole is unbalanced.In Chinese north
Daxing'an Mountainrange-Taihang Mountain of side, the area between Helan Mountain, geographic range include coal resources and are more than more than 100,000,000,000 tons
The Inner Mongol, Shanxi, Shaanxi, Ningxia, Gansu, the whole of the provinces and regions of Henan 6 or big portion, it is the ground of coal resources in China integrated distribution
Area, its stock number account for 50% or so of national coal resources, account for more than the 55% of Northern Part of China coal resources.In China
South, coal resources focus primarily upon Guizhou, Yunnan, Sichuan San Sheng, and this three provinces coal resources sum is 3525.74 hundred million
Ton, accounts for the 91.47% of southern china coal resources；Verify reserves and also account for southern china verifies reserves 90%
More than.
As the colliery easily verified is developed totally substantially, the geological environment in colliery becomes increasingly complex now, needs during exploitation
Geological environment of coal mine is verified from many aspects.Important and basic one is the test of coal petrography Penetration Signature.Existing test
Equipment design cost is high, and rock sampling processing is cumbersome, and testing expense is expensive.Teaching experiment can not be applied to use.
The content of the invention
It is an object of the invention to provide a kind of simple in construction, cost is low, can be by visually intuitively observing coal petrography
Permeability Permeability Oe Coal And Porous Rock And Fractured Rock teaching experimental equipment, to solve the problems mentioned in the above background technology.
To achieve the above object, the present invention provides following technical scheme：
A kind of Permeability Oe Coal And Porous Rock And Fractured Rock teaching experimental equipment, including ejector, guiding trestle and experimental bench, the ejector include cylinder
Body, compression head, flexible inner cylinder, piston, compression spring and pull bar, inner barrel is anterior to be provided with flexible inner cylinder, before the inner cylinder that stretches
The interior forward end of connector drum is held, the rear end for the inner cylinder that stretches connects the front end face of piston, the rear end cylinder lever connecting rod of piston and compression
Spring, the spring base of the rear end connector drum rear end of compression spring；The front end center of cylinder is provided with compression head, and compression head diameter is small
In cylinder, head inner hollow is compressed, rear end connection cylinder, front end is provided with an aperture；Guiding trestle is arranged on the upper of experimental bench
Side, guiding trestle are made up of four oblique framves and a sliding sleeve, wherein the side of the top connection sliding sleeve of four oblique framves, bottom is fixed
On experimental bench.
As the further scheme of the present invention：The flexible inner cylinder is that can convert into cylinder.
As the further scheme of the present invention：A diameter of 5mm of the aperture.
As the further scheme of the present invention：The internal diameter of the compression head is the 1/3 of the internal diameter of cylinder.
As the further scheme of the present invention：The material of the cylinder is stainless steel.
As the further scheme of the present invention：The side of the piston is provided with a pin-and-hole, and the rear portion side of cylinder is provided with
The through hole coordinated with pin-and-hole.
As the further scheme of the present invention：The rear end of the cylinder is provided with a rotating piston, and pull bar runs through rotating piston, and
And pull bar is provided with external screw thread, is threadedly coupled with rotating piston.
As the further scheme of the present invention：Hold-down mechanism is set on the experimental bench, and hold-down mechanism includes screw rod, compressed
Block and clamp nut, compact heap are enclosed on screw rod, and the top of compact heap is provided with the clamp nut being connected with screw flight.
A kind of experimental method of Permeability Oe Coal And Porous Rock And Fractured Rock teaching experimental equipment, comprises the following steps：
（1）A tactile ability of swimming water content detection test paper is placed on experimental bench, is placed above tactile ability of swimming water content detection test paper to be measured
Coal petrography sample；
（2）Pull pull bar to suck water by compressing head front end aperture, then keep pull bar motionless with respect to cylinder position, cylinder is inserted
Enter in slide cartridge, move down, compression head front end aperture is propped up to the surface of coal petrography sample to be measured；Pull bar is decontroled, compression spring will
Piston projects to sinciput, the water of the flexible inner cylinder of piston press, water through overcompression head from compression head front end aperture；
（3）Coal petrography sample to be measured is removed, takes out and touches ability of swimming water content detection test paper, is touched by observing on ability of swimming water content detection test paper
Color change interval can intuitively find out transmission area.
Compared with prior art, the beneficial effects of the invention are as follows：The present invention is simple in construction, and cost is low, can pass through naked eyes
The area of jet transmission is intuitively observed, and the area transmitted embodies the size of Permeability Oe Coal And Porous Rock And Fractured Rock, visualization is high, fits
For teaching experiment and demonstration.
The present invention may also be combined with optical flat scanner and calculate Permeability Oe Coal And Porous Rock And Fractured Rock by measuring the area of jet transmission
Coefficient, there is provided calculate the possibility of accurate experiment data.
Brief description of the drawings
Fig. 1 is the structural representation of the ejector of embodiment one.
Fig. 2 is the structural representation of the experimental bench of embodiment one.
Fig. 3 is the structural representation of the ejector of embodiment two.
Fig. 4 is the structural representation of the ejector of embodiment three.
Fig. 5 is the structural representation of the experimental bench of example IV.
Fig. 6 is the structural representation of the ejector of embodiment five.
Fig. 7 is the experiment schematic diagram of embodiment six.
Fig. 8 is the structural representation of the ejector of embodiment seven.
Embodiment
The technical scheme of this patent is described in more detail with reference to embodiment.
Embodiment one
Fig. 1-2, a kind of Permeability Oe Coal And Porous Rock And Fractured Rock teaching experimental equipment, including ejector, guiding trestle and experimental bench 10 are referred to, it is described
Ejector includes cylinder 1, compresses first 2, flexible inner cylinder 3, piston 4, compression spring 5 and pull bar 6, and the interior front of cylinder 1, which is provided with, to be stretched
Contracting inner cylinder 3, the interior forward end of the front end connector drum 1 for the inner cylinder 3 that stretches, the front end face of the rear end connection piston 4 for the inner cylinder 3 that stretches,
The rear end cylinder lever connecting rod 6 and compression spring 5 of piston 4, the spring base 7 of the rear end of rear end connector drum 1 of compression spring 5；Cylinder 1
Front end center is provided with compression first 2, compresses first 2 diameter and is less than cylinder 1, compresses first 2 inner hollow, rear end connection cylinder 1, front end is set
There is an aperture.
Guiding trestle is arranged on the top of experimental bench 10, and guiding trestle is made up of four oblique framves 8 and a sliding sleeve 9, wherein
The side of the top connection sliding sleeve 9 of four oblique framves 8, bottom is fixed on experimental bench 10.
Further, cylinder 1 is overall in cylinder.
Further, inner cylinder 3 is stretched for cylinder 1 can be converted into.
Further, the oblique frame 8 of four on guiding trestle uniform annular array distribution centered on the axis of sliding sleeve 9.
Further, a diameter of 5mm of aperture.
Further, the internal diameter of compression first 2 is the 1/3 of the internal diameter of cylinder 1.
Further, the material of cylinder 1 is stainless steel.
A kind of experimental method of Permeability Oe Coal And Porous Rock And Fractured Rock teaching experimental equipment, comprises the following steps：
（1）A tactile ability of swimming water content detection test paper is placed on experimental bench 10, places and treats above tactile ability of swimming water content detection test paper
Survey coal petrography sample；
（2）Pull pull bar 6 to suck water by compressing first 2 front end aperture, then keep pull bar 6 motionless with respect to the position of cylinder 1, by cylinder
Body 1 is inserted in slide cartridge, is moved down, and compression first 2 front end aperture is propped up to the surface of coal petrography sample to be measured；Decontrol pull bar 6, compression
Spring 5 projects piston 4 to sinciput, the water of the flexible inner cylinder 3 of the extruding of piston 4, water through overcompression first 2 from compression first 2 front end aperture；
（3）Coal petrography sample to be measured is removed, takes out and touches ability of swimming water content detection test paper, is touched by observing on ability of swimming water content detection test paper
Color change interval can intuitively find out transmission area.So as to substantially understand the size of the infiltration coefficient of coal petrography sample to be measured.
Embodiment two
Referring to Fig. 3, unlike embodiment one, the side of piston 4 is provided with a pin-and-hole 11, and the rear portion side of cylinder 1 is set
There is the through hole coordinated with pin-and-hole 11, when piston 4 is forgotten about it rear end by pull bar 6, can be inserted into pin 12 and fix piston 4.
Embodiment three
Referring to Fig. 4, unlike embodiment one, the rear end of cylinder 1 is provided with a rotating piston 13, and pull bar 6 runs through rotating piston
13, and pull bar 6 is provided with external screw thread, is threadedly coupled with rotating piston 13.Rotation rotating piston 13 can be made by the effect of screw thread
Pull bar 6 is movable, and can position at any time.
Example IV
Referring to Fig. 5, unlike embodiment one, hold-down mechanism is designed on experimental bench 10, hold-down mechanism includes screw rod 14, pressure
Tight block 15 and clamp nut 16, compact heap 15 are enclosed on screw rod 14, and the top of compact heap 15 is provided with what is be threadedly coupled with screw rod 14
Clamp nut 16.After coal petrography sample to be measured is placed, nut 16 is rotatably compressed, compact heap 15 is fixed coal petrography sample to be measured,
Spin off clamp nut 16, you can remove coal petrography sample to be measured.
Embodiment five
Referring to Fig. 6, unlike embodiment one, the flexible inner cylinder 3 in cylinder 1 is removed.
Embodiment six
Referring to Fig. 7, unlike embodiment one, a kind of experimental method of Permeability Oe Coal And Porous Rock And Fractured Rock teaching experimental equipment, including with
Lower step：
（1）An optical flat scanner 17 is placed on experimental bench 10, coal petrography sample to be measured is placed on optical flat scanner 17
Product.
（2）Pull pull bar 6 to suck water by compressing first 2 front end aperture, then keep pull bar 6 motionless with respect to the position of cylinder 1,
Cylinder 1 is inserted in slide cartridge, moved down, compression first 2 front end aperture is propped up to the surface of coal petrography sample to be measured；Pull bar 6 is decontroled,
Compression spring 5 is by piston 4 to sinciput, and the water of the flexible inner cylinder 3 of the extruding of piston 4, water is through overcompression first 2 from compression first 2 front end aperture
Project；
（3）Shooting, observation projection surface product are scanned to transmission area using optical flat scanner 17 immediately after jet is complete
And substitute into formula and carry out permeability coefficient calculating, analyze coal petrography Penetration Signature.
Step（3）The formula that middle permeability coefficient calculates be Q=K Δ PA/ μ L, and Q passes through rock for fluid in the unit time in formula
The flow of stone；K is rock permeability coefficient；A is sectional area of the liquid by rock；μ is the viscosity of liquid；L is rock sample thickness；Δ
P is that liquid passes through the pressure difference before and after rock.
Q is the flow (cm that fluid passes through rock in the unit time3/ s), ejector device single flow controlled range 0.2 ~
1mL；K is rock permeability coefficient；A is sectional area (cm of the liquid by rock2), orifice cross sectional 0.25cm2, calculate；μ is liquid
Viscosity (Pas), water takes 1Pas；L is rock sample thickness (cm)；Δ P is that liquid passes through the pressure difference (MPa) before and after rock.
Embodiment seven
Referring to Fig. 8, unlike embodiment one, the compression first 2 of the front end of cylinder 1 replaces with a conical head 18, taper
First 18 front end equally sets aperture, and the cone-shaped cavity connected with the front opening of cylinder 1 is provided with conical head 18.
Embodiment eight
Unlike embodiment one, the material of cylinder 1 is ABS.
Embodiment nine
Unlike embodiment one, the bottom of experimental bench 10 is provided with road wheel.
Embodiment ten
Unlike embodiment one, experimental bench 10 is surrounded by dash fence.
The better embodiment of this patent is explained in detail above, but this patent is not limited to above-mentioned embodiment party
Formula, can also be on the premise of this patent objective not be departed from one skilled in the relevant art's possessed knowledge
Various changes can be made.
Claims (9)
1. a kind of Permeability Oe Coal And Porous Rock And Fractured Rock teaching experimental equipment, including ejector, guiding trestle and experimental bench, it is characterised in that described
Ejector includes cylinder, compression head, flexible inner cylinder, piston, compression spring and pull bar, and inner barrel is anterior to be provided with flexible inner cylinder,
The interior forward end of the front end connector drum of flexible inner cylinder, the front end face of the rear end connection piston for the inner cylinder that stretches, the rear end of piston connects
Connect pull bar and compression spring, the spring base of the rear end connector drum rear end of compression spring；The front end center of cylinder is provided with compression head,
Compression head diameter is less than cylinder, compresses head inner hollow, rear end connection cylinder, front end is provided with an aperture；Guiding trestle is installed
In the top of experimental bench, guiding trestle is made up of four oblique framves and a sliding sleeve, wherein the top connection sliding sleeve of four oblique framves
Side, bottom are fixed on experimental bench.
2. Permeability Oe Coal And Porous Rock And Fractured Rock teaching experimental equipment according to claim 1, it is characterised in that the flexible inner cylinder is to roll over
Close cylinder.
3. Permeability Oe Coal And Porous Rock And Fractured Rock teaching experimental equipment according to claim 1, it is characterised in that the aperture it is a diameter of
5mm。
4. Permeability Oe Coal And Porous Rock And Fractured Rock teaching experimental equipment according to claim 1, it is characterised in that it is described compression head internal diameter be
The 1/3 of the internal diameter of cylinder.
5. Permeability Oe Coal And Porous Rock And Fractured Rock teaching experimental equipment according to claim 1, it is characterised in that the material of the cylinder is not
Become rusty steel.
6. Permeability Oe Coal And Porous Rock And Fractured Rock teaching experimental equipment according to claim 1, it is characterised in that the side of the piston is provided with
One pin-and-hole, the rear portion side of cylinder are provided with the through hole coordinated with pin-and-hole.
7. Permeability Oe Coal And Porous Rock And Fractured Rock teaching experimental equipment according to claim 1, it is characterised in that the rear end of the cylinder is provided with
One rotating piston, pull bar runs through rotating piston, and pull bar is provided with external screw thread, is threadedly coupled with rotating piston.
8. Permeability Oe Coal And Porous Rock And Fractured Rock teaching experimental equipment according to claim 1, it is characterised in that pressure is set on the experimental bench
Tight mechanism, hold-down mechanism include screw rod, compact heap and clamp nut, and compact heap is enclosed on screw rod, the top of compact heap be provided with
The clamp nut of screw flight connection.
9. a kind of experimental method of Permeability Oe Coal And Porous Rock And Fractured Rock teaching experimental equipment, it is characterised in that comprise the following steps：
（1）A tactile ability of swimming water content detection test paper is placed on experimental bench, is placed above tactile ability of swimming water content detection test paper to be measured
Coal petrography sample；
（2）Pull pull bar to suck water by compressing head front end aperture, then keep pull bar motionless with respect to cylinder position, cylinder is inserted
Enter in slide cartridge, move down, compression head front end aperture is propped up to the surface of coal petrography sample to be measured；Pull bar is decontroled, compression spring will
Piston projects to sinciput, the water of the flexible inner cylinder of piston press, water through overcompression head from compression head front end aperture；
（3）Coal petrography sample to be measured is removed, takes out and touches ability of swimming water content detection test paper, is touched by observing on ability of swimming water content detection test paper
Color change interval can intuitively find out transmission area.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710740414.1A CN107437364B (en) | 2017-08-25 | 2017-08-25 | A kind of Permeability Oe Coal And Porous Rock And Fractured Rock teaching experimental equipment and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710740414.1A CN107437364B (en) | 2017-08-25 | 2017-08-25 | A kind of Permeability Oe Coal And Porous Rock And Fractured Rock teaching experimental equipment and method |
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| CN107437364A true CN107437364A (en) | 2017-12-05 |
| CN107437364B CN107437364B (en) | 2019-10-11 |
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| CN201710740414.1A Expired - Fee Related CN107437364B (en) | 2017-08-25 | 2017-08-25 | A kind of Permeability Oe Coal And Porous Rock And Fractured Rock teaching experimental equipment and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112362579A (en) * | 2020-11-13 | 2021-02-12 | 上海电力大学 | Testing device for metal surface adhesion force in presence of surface electroosmosis |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU829978A1 (en) * | 1979-07-16 | 1981-05-15 | Всесоюзный Ордена Трудового Красногознамени Научно-Исследовательскийинститут Горной Геомеханики Имаркшейдерского Дела | Device for measuring gas permeability of rock body |
| CN88105876A (en) * | 1988-03-14 | 1988-09-28 | 四川石油管理局川西南矿区地质大队 | The core high pressure oozes, hole analyzer and using method |
| CN2090986U (en) * | 1991-03-15 | 1991-12-18 | 中国矿业大学 | Permeability measurer for coal stone |
| CN101985875A (en) * | 2010-09-27 | 2011-03-16 | 中国石油大学(华东) | Hydraulic pulse-assisted reservoir chemical remedial treatment experiment device and method |
| CN104535472A (en) * | 2014-12-22 | 2015-04-22 | 中国石油大学(北京) | Method and device for detecting dynamic permeability of coal petrography |
| CN204789267U (en) * | 2015-07-23 | 2015-11-18 | 重庆大学 | Coal petrography permeability detection device |
| CN106370576A (en) * | 2015-07-20 | 2017-02-01 | 中国石油化工股份有限公司 | Simulation apparatus and method for researching permeability of coal rock |
-
2017
- 2017-08-25 CN CN201710740414.1A patent/CN107437364B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU829978A1 (en) * | 1979-07-16 | 1981-05-15 | Всесоюзный Ордена Трудового Красногознамени Научно-Исследовательскийинститут Горной Геомеханики Имаркшейдерского Дела | Device for measuring gas permeability of rock body |
| CN88105876A (en) * | 1988-03-14 | 1988-09-28 | 四川石油管理局川西南矿区地质大队 | The core high pressure oozes, hole analyzer and using method |
| CN2090986U (en) * | 1991-03-15 | 1991-12-18 | 中国矿业大学 | Permeability measurer for coal stone |
| CN101985875A (en) * | 2010-09-27 | 2011-03-16 | 中国石油大学(华东) | Hydraulic pulse-assisted reservoir chemical remedial treatment experiment device and method |
| CN104535472A (en) * | 2014-12-22 | 2015-04-22 | 中国石油大学(北京) | Method and device for detecting dynamic permeability of coal petrography |
| CN106370576A (en) * | 2015-07-20 | 2017-02-01 | 中国石油化工股份有限公司 | Simulation apparatus and method for researching permeability of coal rock |
| CN204789267U (en) * | 2015-07-23 | 2015-11-18 | 重庆大学 | Coal petrography permeability detection device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112362579A (en) * | 2020-11-13 | 2021-02-12 | 上海电力大学 | Testing device for metal surface adhesion force in presence of surface electroosmosis |
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| CN107437364B (en) | 2019-10-11 |
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