CN103940719A

CN103940719A - Coal body permeability characteristic testing system and method

Info

Publication number: CN103940719A
Application number: CN201410150520.0A
Authority: CN
Inventors: 张天军; 任金虎; 李树刚; 于胜红; 赵佩佩; 宋爽; 李伟; 成小雨; 崔巍; 张磊
Original assignee: Xian University of Science and Technology
Current assignee: Xian University of Science and Technology
Priority date: 2014-04-15
Filing date: 2014-04-15
Publication date: 2014-07-23
Anticipated expiration: 2034-04-15
Also published as: CN103940719B

Abstract

The invention discloses a coal body permeability characteristic testing system. The coal body permeability characteristic testing system comprises an electronic universal testing machine, a permeability characteristic testing device, a vibration detecting device, a first gas system, a confining pressure hydraulic system and a computer, wherein the permeability characteristic testing device consists of a lane simulating mechanism and a lane ambient environment simulating mechanism; the lane simulating mechanism comprises a baffle, a breathable plate, a coal rock sample and a U-shaped clamping sleeve; the lane ambient environment simulating mechanism comprises a base, a cylinder tube, a lower pressing head, an upper half concave surface pressing head, an upper half convex surface pressing head and a piston; the first gas system comprises a first gas tank, a first pressure reduction valve and a first gas pressure meter; the confining pressure hydraulic system comprises a confining pressure liquid tank, a hydraulic pump, a unidirectional valve, a confining pressure hydraulic meter and a confining pressure liquid overflow valve. The invention also provides a coal body permeability characteristic testing method. According to the coal body permeability characteristic testing system and method, the axial pressure, the confining pressure and the methane gas pressure are controllable, the gas permeability characteristics influenced by disturbance of a lane coal rock body and a coal mine deep part coal rock body can be tested, and the testing precision is high.

Description

A kind of coal body Penetration Signature test macro and method

Technical field

The invention belongs to the Penetration Signature studying technological domain of coal and rock, be specifically related to a kind of coal body Penetration Signature test macro and method.

Background technology

The basis of mine generation coal and Gas Outburst and gushing water when the Penetration Signature of coal and rock is research ore deposit underground mining, therefore the Penetration Signature of Study on Coal rock mass has important engineering significance.Chinese scholars is that the chamber mode of doing experiment is carried out by experiment to the Penetration Signature research of coal and rock mostly, and test can be divided into two classes: the first kind is to carry out the characteristic test of coal and rock Liquid Penetrant by the mode of Liquid Penetrant measurement of discharge; Equations of The Second Kind is to carry out the test of coal and rock gas permeation property by the mode of gas permeation measurement of discharge, test method while carrying out the characteristic test of coal and rock Liquid Penetrant and gas permeation property test is divided into again two kinds: a kind of is in the situation that pressure reduction is stable, measure fluid permeability and cross the flow of coal and rock, i.e. steady state method; Because the side exposed side in tunnel of coal and rock in lane is subject to gaseous tension, be atmospheric pressure, internal gas pressure is stabilized in certain value, so steady state method is mainly used in the Penetration Signature of lane side coal and rock to test; Another kind is in pressure reduction change procedure, measures fluid permeability and crosses the flow of coal and rock about the relation of time, i.e. Transient Method; Because the inner gas of the coal and rock of mine deep part is usually because the existence of gas pressure difference is along coal and rock internal crack and hole migration, also because pressure differential in migration process reduces, migration velocity and flow change, so Transient Method is mainly used in the Penetration Signature of mine deep part coal and rock to test.

At present, the technology that employing steady state method and Transient Method carry out the characteristic test of coal and rock Liquid Penetrant is comparatively ripe, but, the technology that adopts steady state method and Transient Method to carry out the test of coal and rock gas permeation property is also in development, there is following defect and deficiency: (1) is although can realize three axle seepage tests of gas, but the confined pressure in three axle seepage tests is uncontrollable, can not provide for engineering technical personnel the data of confined pressure factor, thereby engineering technical personnel also just cannot study the impact of confined pressure on the test of coal and rock gas permeation property; But the different depth place of mine, the suffered confined pressure of coal and rock varies in size, and the gas permeation property of coal and rock also can change because of the difference of confined pressure size; (2) in the single shaft seepage tests and three axle seepage tests of gas, all do not consider the impact of disturbance factor, but the coal and rock under mine is often because the factors such as digging laneway and coal mining are subject to disturbing influence in various degree, and then coal and rock internal crack develops and the regularity of distribution changes, cause the seepage characteristic of coal and rock to change, thereby changed the rules such as Gas of coal and rock, therefore research disturbance factor has important practical significance to the Penetration Signature of coal and rock.

Summary of the invention

Technical matters to be solved by this invention is, for above-mentioned deficiency of the prior art, to provide a kind of simple in structure, easy to assembly, uses simple operation, the coal body Penetration Signature test macro that axial compression, confined pressure and methane gas pressure are controlled.

For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of coal body Penetration Signature test macro, it is characterized in that: comprise electronic universal tester, Penetration Signature proving installation, vibration detection device, the first methane gas system, confined pressure hydraulic system and computing machine, described Penetration Signature proving installation centering is placed on the base of electronic universal tester, and described electronic universal tester and computing machine join;

Described Penetration Signature proving installation is comprised of lane side simulation mechanism and lane side surrounding environment simulation mechanism, described lane helps simulation mechanism to comprise the baffle plate of docking successively, air permeable plate, coal petrography sample and U-shaped cutting ferrule, described baffle plate, air permeable plate, it is an integral body that coal petrography sample and U-shaped cutting ferrule are fastened by electrical adhesive tape, on the outer wall of described U-shaped cutting ferrule, be provided with scale, on described U-shaped cutting ferrule, be connected with snorkel, on described snorkel, be connected with breather valve and gas meter, on described gas meter, be connected with recording instrument without paper, described recording instrument without paper and computing machine join, described baffle plate middle part is provided with the first inlet channel, described air permeable plate middle part is provided with the second inlet channel being connected with the first inlet channel, the surrounding that is positioned at the second inlet channel on described air permeable plate is provided with radial ventilative duct, described lane helps surrounding environment simulation mechanism to comprise base, be fixedly connected on the cylinder barrel and the cover that is fixedly connected on cylinder barrel top of base top, on the sidewall of described cylinder barrel middle part, have the lane side simulation mechanism patchhole inserting for lane side simulation mechanism, place, described base top centre position is provided with groove, in described groove, be placed with push-down head, directly over described push-down head, be disposed with from top to bottom first concave surface pressure head, first convex surface pressure head and piston, described piston is through cover, and place, the centre position of cover is provided with the through hole passing for piston, the middle part that is positioned at the piston of cover outside is provided with annular projection, on described piston, be set with the disturbance ring that is positioned at annular projection top, the vibration detection probe of described vibration detection device is placed on the surface of the piston that is positioned at cover outside, the upper surface of described piston be positioned at described electronic universal tester pressure head under, described lane helps simulation mechanism from side simulation mechanism patchhole insertion cylinder barrel inside, described lane, and coal petrography sample is to being sitting between the upper surface of push-down head and the lower surface of first concave surface pressure head, U-shaped cutting ferrule engaging is connected to described lane and helps in simulation mechanism patchhole, the gas access that is provided with the 3rd inlet channel on described base and is connected with the 3rd inlet channel, on described push-down head, be provided with the 4th inlet channel being connected with the 3rd inlet channel, described the 4th inlet channel is connected with the first inlet channel by the first gas transport pipeline, on described base, be provided with the confined pressure liquid flow channel being connected with cylinder barrel inner space, described base sidepiece is provided with the confined pressure liquid entrance being connected with confined pressure liquid flow channel, and described cylinder barrel side is provided with exhausr port, is connected with exhausr port plug on described exhausr port,

Described the first methane gas system comprises the first methane gas tank, and the gas outlet of described the first methane gas tank is connected with gas access by the second gas transport pipeline, on described the second gas transport pipeline, is provided with the first reduction valve and the first rain glass;

Described confined pressure hydraulic system comprises the confined pressure liquid inflow pipe that confined pressure liquid case is connected with confined pressure liquid case with one end, the other end of described confined pressure liquid inflow pipe is connected with confined pressure liquid entrance, on described confined pressure liquid inflow pipe, be connected with hydraulic pump and retaining valve, on one section of confined pressure liquid inflow pipe between hydraulic pump and retaining valve, be connected with confined pressure liquid run-down pipe, on described confined pressure liquid run-down pipe, be connected with confined pressure hydraulic coupling table and confined pressure liquid surplus valve, on one section of confined pressure liquid inflow pipe between retaining valve and confined pressure liquid entrance, be connected with confined pressure liquid recirculatory pipe, on described confined pressure liquid recirculatory pipe, be connected with confined pressure liquid reverse flow valve.

Above-mentioned a kind of coal body Penetration Signature test macro, it is characterized in that: comprise the second methane gas system, described the second methane gas system comprises the second methane gas tank, the gas outlet of described the second methane gas tank is connected with snorkel by the 3rd gas transport pipeline, on described the 3rd gas transport pipeline, is provided with the second reduction valve and the second rain glass.

Above-mentioned a kind of coal body Penetration Signature test macro, is characterized in that: between described base and push-down head, between base and cylinder barrel, between cylinder barrel and cover, between first concave surface pressure head and first convex surface pressure head, between U-shaped cutting ferrule and cylinder barrel and be provided with O-ring seal between cover and piston; Described cylinder barrel is fixedly connected on base top by the second bolt, and described cover is fixedly connected on cylinder barrel top by the 3rd bolt; One end of described the first gas transport pipeline joins by the first rapid-acting coupling and the first inlet channel, and the other end of described the first gas transport pipeline joins by the second rapid-acting coupling and the 4th inlet channel.

Above-mentioned a kind of coal body Penetration Signature test macro, it is characterized in that: the shape of the shape of the shape of described cylinder barrel outline, push-down head outline, the shape of coal petrography sample outline, the shape of U-shaped cutting ferrule outline and first concave surface pressure head bottom outline is cuboid, the length of described coal petrography sample and the length of push-down head and first concave surface pressure head bottom equal in length, the width of described coal petrography sample equates with the width of the width of push-down head, U-shaped cutting ferrule and the width of first concave surface pressure head bottom, and the height of described coal petrography sample equates with the height of U-shaped cutting ferrule outline; Distance between described annular projection lower surface and the lower surface of piston adds that the overall height of first concave surface pressure head after combination and first convex surface pressure head is greater than the distance between upper surface to the upper surface of push-down head of cover.

Above-mentioned a kind of coal body Penetration Signature test macro, is characterized in that: described vibration detection device is that model is the super dynamic signalling analysis system of DH5960.

Above-mentioned a kind of coal body Penetration Signature test macro, is characterized in that: described the 3rd gas transport pipeline joins by the 3rd rapid-acting coupling and snorkel.

The present invention also provides the coal body Penetration Signature method of testing based on steady state method under disturbing influence that is subject to that a kind of method step is simple, measuring accuracy is high, it is characterized in that the method comprises the following steps:

Step 1, assembling coal body Penetration Signature test macro, its detailed process is:

Step 101, by baffle plate, air permeable plate, coal petrography sample and the described U-shaped cutting ferrule of docking successively, by electrical adhesive tape, to be fastened be an integral body, is combined into lane side simulation mechanism;

Step 102, push-down head is placed in described groove, and the 4th inlet channel is connected with the 3rd inlet channel, and one end of the first gas transport pipeline is connected on the 4th inlet channel;

Step 103, cylinder barrel is fixedly connected on to base top;

Step 104, one end of helping simulation mechanism to have baffle plate in described lane are inserted described lane and are helped in simulation mechanism patchhole, and are arranged on the scale on U-shaped cutting ferrule outer wall by observation, make coal petrography sample to being sitting on the upper surface of push-down head;

Step 105, the other end of the first gas transport pipeline is connected on the first inlet channel;

Step 106, first concave surface pressure head is aligned on the upper surface that is positioned over coal petrography sample, and place first convex surface pressure head at the top of first concave surface pressure head;

Step 107, by piston through being arranged in the through hole at cover centre position place, and cover is fixedly connected on to cylinder barrel top, guarantee the center of piston and the central alignment of first convex surface pressure head simultaneously;

Step 108, disturbance ring set is contained in to the position that is positioned at annular projection top on piston;

Step 109, the second gas transport pipeline is connected on gas access;

Step 1010, confined pressure liquid inflow pipe is connected on confined pressure liquid entrance;

Step 1011, electronic universal tester is connected with computing machine, and the Penetration Signature proving installation centering that step 101～step 108 has been assembled is placed on the base of electronic universal tester, and make the upper surface of piston be positioned at described electronic universal tester pressure head under;

Step 2, coal supply rock sample load axial compression: on computers, open mounted electronic universal tester software in advance, operation electronic universal tester software startup electronic universal tester, and the pressure head of setting electronic universal tester presses down speed parameter and the pressure parameter of piston, the pressure head of electronic universal tester presses down piston according to the speed parameter of setting, until be presented at the pressure parameter that pressure parameter in electronic universal tester software reaches setting;

Step 3, coal supply rock sample load confined pressure: take off the exhausr port plug being connected on exhausr port, open exhausr port, open the feed liquor switch of confined pressure liquid surplus valve, open described confined pressure hydraulic system, confined pressure liquid in confined pressure liquid case pressurizes by being flowed in cylinder barrel by confined pressure liquid inflow pipe and confined pressure liquid entrance through the second hydraulic pump, when exhausr port has confined pressure liquid to flow out, exhausr port plug is connected on exhausr port, close exhausr port;

Step 4, coal supply rock sample load methane gas pressure: first, open breather valve, then, open the switch of the first reduction valve, open described the first methane gas system, methane gas in the first methane gas tank reduces pressure by being entered in the first inlet channel and the second inlet channel by the gentle body entrance of the second gas transport pipeline by the first reduction valve, and enters in bleeder vent road;

Step 5, the methane gas flow that coal petrography sample under disturbing influence is permeated detect, and its detailed process is as follows:

Step 501, the vibration detection probe of vibration detection device is placed on the surface of the piston that is positioned at cover outside, opens vibration detection device;

Step 502, unlatching recording instrument without paper;

Step 503, disturbance ring is mentioned and decontroled, make disturbance ring along the downward free fall type of piston, impact annular projection from eminence, form the shock vibration to coal petrography sample; In perturbation process, the oscillation intensity that vibration detection device produces disturbance detects and stores, simultaneously, gas meter is to being penetrated in U-shaped cutting ferrule through coal petrography sample and the methane gas flow flowing in snorkel detects in real time and detected data on flows Q is exported to recording instrument without paper, the data on flows Q that recording instrument without paper real time record gas meter detects and by data on flows Q real-time Transmission to computing machine;

Step 504, described computing machine receive the data on flows Q of recording instrument without paper real-time Transmission, and draw out the data on flows Q curve that t changes in time.

The present invention also provides the coal body Penetration Signature method of testing based on Transient Method under disturbing influence that is subject to that a kind of method step is simple, measuring accuracy is high, it is characterized in that the method comprises the following steps:

Step 103, cylinder barrel is fixedly connected on to base top;

Step 109, the second gas transport pipeline is connected on gas access;

Step 1011, the 3rd gas transport pipeline is connected on snorkel;

Step 1012, electronic universal tester is connected with computing machine, and the Penetration Signature proving installation centering that step 101～step 108 has been assembled is placed on the base of electronic universal tester, and make the upper surface of piston be positioned at described electronic universal tester pressure head under;

Step 4, coal supply rock sample load methane gas pressure: first, open breather valve, then, open the switch of the first reduction valve and the switch of the second reduction valve, open described the first methane gas system and described the second methane gas system, and regulate the first reduction valve and the second reduction valve, the gaseous tension that shows on the first rain glass and the second rain glass is equated and be a ₁mPa, methane gas in the first methane gas tank reduces pressure by being entered in the first inlet channel and the second inlet channel by the gentle body entrance of the second gas transport pipeline by the first reduction valve, and enter in bleeder vent road, the methane gas in the second methane gas tank reduces pressure by being entered in U-shaped cutting ferrule by the 3rd gas transport pipeline and snorkel by the second reduction valve; After 5～10 minutes, close the switch of the first reduction valve and the switch of the second reduction valve; Wherein, a ₁span be 0.5MPa～0.7MPa;

Step 502, unlatching recording instrument without paper;

Step 503, open the switch of the first reduction valve and regulate the first reduction valve, making the gaseous tension showing on the first rain glass is a ₂mPa, after 10～20 seconds, closes the switch of the first reduction valve; Wherein, a ₂>a ₁and a ₂-a ₁span be 0.3MPa～0.6MPa;

Step 504, disturbance ring is mentioned and decontroled, make disturbance ring along the downward free fall type of piston, impact annular projection from eminence, form the shock vibration to coal petrography sample; In perturbation process, the oscillation intensity that vibration detection device produces disturbance detects and stores; Gas meter is to being penetrated in U-shaped cutting ferrule through coal petrography sample and the methane gas flow flowing in snorkel detects in real time and detected data on flows Q is exported to recording instrument without paper, the data on flows Q that recording instrument without paper real time record gas meter detects and by data on flows Q real-time Transmission to computing machine;

Step 505, described computing machine receive the data on flows Q of recording instrument without paper real-time Transmission, and draw out the data on flows Q curve that t changes in time.

Above-mentioned method, is characterized in that: in described step 102, before push-down head being placed in described groove, first in groove, put into O-ring seal; In described step 103, before cylinder barrel is fixedly connected on to base top, first in base top, put into O-ring seal; In described step 104 in described lane side simulation mechanism patchhole is inserted in the one end described lane side simulation mechanism to baffle plate before, first in described lane side simulation mechanism patchhole, put into O-ring seal; In described step 106, before first convex surface pressure head is placed on to the top of first concave surface pressure head, first in first concave surface pressure head, put into O-ring seal; In described step 107 by piston through before in being arranged on the through hole at cover centre position place, first in the through hole that is arranged on place, cover centre position, put into O-ring seal; In described step 107, before cover is fixedly connected on to cylinder barrel top, first at cylinder barrel top, put into O-ring seal; In described step 103, cylinder barrel being fixedly connected on to base top is to adopt the second bolt; In described step 107, cover being fixedly connected on to cylinder barrel top is to adopt the 3rd bolt.

Above-mentioned method, it is characterized in that: the speed parameter that the pressure head of the electronic universal tester of setting in described step 2 presses down piston is 0.4mm/min～0.6mm/min, the pressure parameter that the pressure head of the electronic universal tester of setting in described step 2 presses down piston is 3MPa～5MPa.

The present invention compared with prior art has the following advantages:

1, coal body Penetration Signature test macro of the present invention is simple in structure, easy to assembly, uses simple operation.

2, Penetration Signature proving installation of the present invention is comprised of lane side simulation mechanism and lane side surrounding environment simulation mechanism, by with electronic universal tester, Penetration Signature proving installation, vibration detection device, the first methane gas system, the second methane gas system, confined pressure hydraulic system and computing machine are used in conjunction with, not only can be in axial compression, under the controlled prerequisite of confined pressure and methane gas pressure, carry out the experiment that steady state method under disturbing influence is measured coal and rock gas flow characteristic, to lane side coal and rock, (the lane exposed measurement gas pressure in tunnel of side coal and rock is atmospheric pressure, internal gas pressure is stabilized in certain value) tested by the gas permeation property of disturbing influence, can also under the controlled prerequisite of axial compression, confined pressure and methane gas pressure, carry out the experiment of Transient Method mensuration coal and rock gas flow characteristic under disturbing influence, to the coal and rock of mine deep part, tested by the gas permeation property of disturbing influence, the data of experimental record offer engineering technical personnel, can on the impact of coal and rock gas permeation property test, provide foundation for engineering technical personnel study confined pressure, and can on the impact of the gas permeation property of coal and rock, provide experiment evidence for engineering technical personnel study disturbance factor.

3, the surrounding that is positioned at the second inlet channel on air permeable plate of the present invention is provided with radial ventilative duct, methane gas can carry out the pressurization of gas face to coal petrography sample by the ventilative duct on air permeable plate, pressurize effective, can simulate truly the effect of coal mine gas gaseous tension to coal and rock.

4, on U-shaped cutting ferrule outer wall of the present invention, be provided with scale, can be arranged on the scale on U-shaped cutting ferrule outer wall by observation, make coal petrography sample to being sitting on the upper surface of push-down head, and can make the pressure head of electronic universal tester, by piston, coal petrography sample be loaded to axial compression exactly, contribute to improve the precision of coal body Penetration Signature test.

When 5, the present invention uses, oscillation intensity and the disturbance time that can produce by recording disturbance, the oscillation intensity and the disturbance time that for research disturbance, produce provide foundation to the impact effect of coal body Penetration Signature.

6, complete function of the present invention, practical, and result of use is good, is convenient to promote the use of.

In sum, of the present invention reasonable in design, it is convenient to realize, axial compression, confined pressure and methane gas pressure are controlled, can help the coal and rock of coal and rock and mine deep part tested by the gas permeation property of disturbing influence to lane, and measuring accuracy is high, complete function, practical.

Below by drawings and Examples, technical scheme of the present invention is described in further detail.

Accompanying drawing explanation

Fig. 1 is the structural representation of the embodiment of the present invention 1.

Fig. 2 is the structural representation of the embodiment of the present invention 2.

Fig. 3 is the structural representation of Penetration Signature proving installation of the present invention.

Description of reference numerals:

1-baffle plate; 2-air permeable plate; 3-coal petrography sample;

4-U-shaped cutting ferrule; The 5-the first inlet channel; The 6-the second inlet channel;

7-ventilative duct; 8-base; 9-cylinder barrel;

10-cover; 11-push-down head; 12-first convex surface pressure head;

13-piston; The 14-the three inlet channel; 15-gas access;

The 16-the four inlet channel; The 17-the first gas transport pipeline;

18-confined pressure liquid flow channel; 19-confined pressure liquid entrance; 20-exhausr port;

21-exhausr port plug; The 22-the first methane gas tank;

The 23-the second gas transport pipeline; The 24-the first reduction valve;

The 25-the first rain glass; 26-confined pressure liquid case; 27-confined pressure liquid inflow pipe;

28-hydraulic pump; 29-confined pressure liquid run-down pipe; 30-confined pressure hydraulic coupling table;

31-confined pressure liquid surplus valve; 32-confined pressure liquid recirculatory pipe; 33-confined pressure liquid reverse flow valve;

34-snorkel; 35-breather valve; 36-annular projection;

37-disturbance ring; The 38-the second methane gas tank; 39-first concave surface pressure head;

40-electronic universal tester; 41-Penetration Signature proving installation;

42-computing machine; 43-retaining valve; 44-O-ring seal;

The 45-the second bolt; The 46-the three bolt;

The 47-the three gas transport pipeline; The 48-the second reduction valve;

The 49-the second rain glass; 50-vibration detection device; 51-gas meter;

52-recording instrument without paper.

Embodiment

Embodiment 1

As shown in figures 1 and 3, a kind of coal body Penetration Signature test macro of the present invention, comprise electronic universal tester 40, Penetration Signature proving installation 41, vibration detection device 50, the first methane gas system, confined pressure hydraulic system and computing machine 42, described Penetration Signature proving installation 41 centerings are placed on the base of electronic universal tester 40, and described electronic universal tester 40 joins with computing machine 42;

Described Penetration Signature proving installation 41You lane side simulation mechanism and lane side surrounding environment simulation mechanism form, described lane helps simulation mechanism to comprise the baffle plate 1 of docking successively, air permeable plate 2, coal petrography sample 3 and U-shaped cutting ferrule 4, described baffle plate 1, air permeable plate 2, it is an integral body that coal petrography sample 3 and U-shaped cutting ferrule 4 are fastened by electrical adhesive tape, on the outer wall of described U-shaped cutting ferrule 4, be provided with scale, on described U-shaped cutting ferrule 4, be connected with snorkel 34, on described snorkel 34, be connected with breather valve 35 and gas meter 51, on described gas meter 51, be connected with recording instrument without paper 52, described recording instrument without paper 52 joins with computing machine 42, described baffle plate 1 middle part is provided with the first inlet channel 5, described air permeable plate 2 middle parts are provided with the second inlet channel 6 being connected with the first inlet channel 5, the surrounding that is positioned at the second inlet channel 6 on described air permeable plate 2 is provided with radial ventilative duct 7, described lane helps surrounding environment simulation mechanism to comprise base 8, be fixedly connected on the cylinder barrel 9 and the cover 10 that is fixedly connected on cylinder barrel 9 tops at base 8 tops, on described cylinder barrel 9 middle part sidewalls, have the lane side simulation mechanism patchhole inserting for lane side simulation mechanism, described base 8 crown center positions are provided with groove, in described groove, be placed with push-down head 11, directly over described push-down head 11, be disposed with from top to bottom first concave surface pressure head 39, first convex surface pressure head 12 and piston 13, described piston 13 is through cover 10, and place, the centre position of cover 10 is provided with the through hole passing for piston 13, the middle part that is positioned at the piston 13 of cover 10 outsides is provided with annular projection 36, on described piston 13, be set with the disturbance ring 37 that is positioned at annular projection 36 tops, the vibration detection probe of described vibration detection device 50 is placed on the surface of the piston 13 that is positioned at cover 10 outsides, the upper surface of described piston 13 be positioned at described electronic universal tester 40 pressure head under, described lane helps simulation mechanism from side simulation mechanism patchhole insertion cylinder barrel 9 inside, described lane, and 3 pairs, coal petrography sample is sitting between the upper surface of push-down head 11 and the lower surface of first concave surface pressure head 39, U-shaped cutting ferrule 4 engagement connections are in simulation mechanism patchhole is helped in described lane, the gas access 15 that is provided with the 3rd inlet channel 14 and is connected with the 3rd inlet channel 14 on described base 8, on described push-down head 11, be provided with the 4th inlet channel 16 being connected with the 3rd inlet channel 14, described the 4th inlet channel 16 is connected with the first inlet channel 5 by the first gas transport pipeline 17, on described base 8, be provided with the confined pressure liquid flow channel 18 being connected with cylinder barrel 9 inner spaces, described base 8 sidepieces are provided with the confined pressure liquid entrance 19 being connected with confined pressure liquid flow channel 18, described cylinder barrel 9 sides are provided with exhausr port 20, on described exhausr port 20, are connected with exhausr port plug 21,

Described the first methane gas system comprises the first methane gas tank 22, the gas outlet of described the first methane gas tank 22 is connected with gas access 15 by the second gas transport pipeline 23, is provided with the first reduction valve 24 and the first rain glass 25 on described the second gas transport pipeline 23;

Described confined pressure hydraulic system comprises the confined pressure liquid inflow pipe 27 that confined pressure liquid case 26 is connected with confined pressure liquid case 26 with one end, the other end of described confined pressure liquid inflow pipe 27 is connected with confined pressure liquid entrance 19, on described confined pressure liquid inflow pipe 27, be connected with hydraulic pump 28 and retaining valve 43, on one section of confined pressure liquid inflow pipe 27 between hydraulic pump 28 and retaining valve 43, be connected with confined pressure liquid run-down pipe 29, on described confined pressure liquid run-down pipe 29, be connected with confined pressure hydraulic coupling table 30 and confined pressure liquid surplus valve 31, on one section of confined pressure liquid inflow pipe 27 between retaining valve 43 and confined pressure liquid entrance 19, be connected with confined pressure liquid recirculatory pipe 32, on described confined pressure liquid recirculatory pipe 32, be connected with confined pressure liquid reverse flow valve 33.

In the present embodiment, between described base 8 and push-down head 11, between base 8 and cylinder barrel 9, between cylinder barrel 9 and cover 10, between first concave surface pressure head 39 and first convex surface pressure head 12, between U-shaped cutting ferrule 4 and cylinder barrel 9 and be provided with O-ring seal 44 between cover 10 and piston 13; Described cylinder barrel 9 is fixedly connected on base 8 tops by the second bolt 45, and described cover 10 is fixedly connected on cylinder barrel 9 tops by the 3rd bolt 46; One end of described the first gas transport pipeline 17 joins by the first rapid-acting coupling and the first inlet channel 5, and the other end of described the first gas transport pipeline 17 joins by the second rapid-acting coupling and the 4th inlet channel 16.

In the present embodiment, the shape of the shape of the shape of the shape of the shape of described cylinder barrel 9 outlines, push-down head 11 outlines, coal petrography sample 3 outlines, U-shaped cutting ferrule 4 outlines and first concave surface pressure head 39 bottom outlines is cuboid, the length of the length of described coal petrography sample 3 and push-down head 11 and first concave surface pressure head 39 bottoms equal in length, the width of described coal petrography sample 3 with the width of push-down head 11, the width of the width of U-shaped cutting ferrule 4 and first concave surface pressure head 39 bottoms equate, the height of described coal petrography sample 3 equates with the height of U-shaped cutting ferrule 4 outlines; Distance between described annular projection 36 lower surfaces and the lower surface of piston 13 adds that the overall height of first concave surface pressure head 39 after combination and first convex surface pressure head 12 is greater than the distance between upper surface to the upper surface of push-down head 11 of cover 10, can guarantee to press down in the process of piston 13 at the push-down head 11 of electronic universal tester 40, annular projection 36 is not encountered cover 10.

In the present embodiment, the super dynamic signalling analysis system that described vibration detection device 50 is DH5960 for model.

The method that adopts a kind of coal body Penetration Signature test macro in the present embodiment to carry out the test of coal body Penetration Signature, comprises the following steps:

Step 101, by baffle plate 1, air permeable plate 2, coal petrography sample 3 and the described U-shaped cutting ferrule 4 of docking successively, by electrical adhesive tape, to be fastened be an integral body, is combined into lane side simulation mechanism;

Step 102, push-down head 11 is placed in described groove, and the 4th inlet channel 16 is connected with the 3rd inlet channel 14, and one end of the first gas transport pipeline 17 is connected on the 4th inlet channel 16;

Step 103, cylinder barrel 9 is fixedly connected on to base 8 tops;

Step 104, one end of helping simulation mechanism to have baffle plate 1 in described lane are inserted described lane and are helped in simulation mechanism patchhole, and are arranged on the scale on U-shaped cutting ferrule 4 outer walls by observation, and 3 pairs, coal petrography sample is sitting on the upper surface of push-down head 11; During concrete enforcement, the distance that known seat 8 centers to cylinder barrel 9 has a side side of lane side simulation mechanism patchhole is l ₁, and half of the length of known coal petrography sample 3 is l ₂, by formula l=l ₁-l ₂just can calculate the distance l that side to cylinder barrel 9 that U-shaped cutting ferrule 4 stretches into cylinder barrel 9 inside has a side side of lane side simulation mechanism patchhole, and this scale that can be arranged on U-shaped cutting ferrule 4 outer walls by observation apart from l is learnt;

Step 105, the other end of the first gas transport pipeline 17 is connected on the first inlet channel 5;

Step 106, first concave surface pressure head 39 is aligned on the upper surface that is positioned over coal petrography sample 3, and place first convex surface pressure head 12 at the top of first concave surface pressure head 39;

Step 107, by piston 13 through being arranged in the through hole at cover 10 places, centre positions, and cover 10 is fixedly connected on to cylinder barrel 9 tops, guarantee the central alignment of piston 13 center and first convex surface pressure head 12 simultaneously;

Step 108, disturbance ring 37 is sleeved on to the position that is positioned at annular projection 36 tops on piston 13;

Step 109, the second gas transport pipeline 23 is connected on gas access 15;

Step 1010, confined pressure liquid inflow pipe 27 is connected on confined pressure liquid entrance 19;

Step 1011, electronic universal tester 40 is connected with computing machine 42, and Penetration Signature proving installation 41 centerings that step 101～step 108 has been assembled are placed on the base of electronic universal tester 40, and make the upper surface of piston 13 be positioned at described electronic universal tester 40 pressure head under;

Step 2, coal supply rock sample 3 load axial compression: on computing machine 42, open mounted electronic universal tester software in advance, operation electronic universal tester software startup electronic universal tester 40, and the pressure head of setting electronic universal tester 40 presses down speed parameter and the pressure parameter of piston 13, the pressure head of electronic universal tester 40 presses down piston 13 according to the speed parameter of setting, until be presented at the pressure parameter that pressure parameter in electronic universal tester software reaches setting; By the pressure head different electronic universal tester 40 is set, press down the pressure parameter of piston 13, can realize the adjusting to axial compression;

Step 3, coal supply rock sample 3 load confined pressure: take off the exhausr port plug 21 being connected on exhausr port 20, open exhausr port 20, open the feed liquor switch of confined pressure liquid surplus valve 31, open described confined pressure hydraulic system, confined pressure liquid in confined pressure liquid case 26 pressurizes by being flowed in cylinder barrels 9 by confined pressure liquid inflow pipe 27 and confined pressure liquid entrance 19 through the second hydraulic pump 37, when exhausr port 20 has confined pressure liquid to flow out, exhausr port plug 21 is connected on exhausr port 20, close exhausr port 20; By at operation confined pressure liquid surplus valve 31, can realize the adjusting to confined pressure;

Step 4, coal supply rock sample 3 load methane gas pressure: first, open breather valve 35, then, open the switch of the first reduction valve 24, open described the first methane gas system, methane gas in the first methane gas tank 22 reduces pressure by being entered in the first inlet channel 5 and the second inlet channel 6 by the second gas transport pipeline 23 and gas access 15 by the first reduction valve 24, and enters in bleeder vent road 7; By operating the first reduction valve 24, can realize the adjusting to methane gas pressure size;

Step 5, the methane gas flow that coal petrography sample under disturbing influence 3 is permeated detect, and its detailed process is as follows:

Step 501, the vibration detection probe of vibration detection device 50 is placed on the surface of the piston 13 that is positioned at cover 10 outsides, opens vibration detection device 50;

Step 502, unlatching recording instrument without paper 52;

Step 503, disturbance ring 37 is mentioned and decontroled, make disturbance ring 37 along the downward free fall type of piston 13, impact annular projection 36 from eminence, form the shock vibration to coal petrography sample 3; In perturbation process, the oscillation intensity that 50 pairs of disturbances of vibration detection device produce detects and stores, simultaneously, 51 pairs of gas meters are penetrated in U-shaped cutting ferrule 4 through coal petrography samples 3 and the methane gas flows that flow in snorkel 34 detect in real time and detected data on flows Q is exported to recording instrument without paper 52, the data on flows Q that recording instrument without paper 52 real time record gas meters 51 detect and by data on flows Q real-time Transmission to computing machine 42;

Step 504, described computing machine 42 receive the data on flows Q of recording instrument without paper 52 real-time Transmission, and draw out the data on flows Q curve that t changes in time.

In addition, in experiment, can also record the disturbance time, the oscillation intensity and the disturbance time that for research disturbance, produce provide foundation to the impact effect of coal body Penetration Signature.

During concrete enforcement, in described step 102, before push-down head 11 is placed in described groove, first in groove, put into O-ring seal 44; In described step 103, before cylinder barrel 9 is fixedly connected on to base 8 tops, first at base 8 tops, put into O-ring seal 44; In described step 104 in described lane side simulation mechanism patchhole is inserted in the one end described lane side simulation mechanism to baffle plate 1 before, first in described lane side simulation mechanism patchhole, put into O-ring seal 44; In described step 106, before first convex surface pressure head 12 is placed on to the top of first concave surface pressure head 39, first in first concave surface pressure head 39, put into O-ring seal 44; In described step 107 by piston 13 through before in being arranged on the through hole at cover 10 places, centre positions, first in the through hole that is arranged on cover 10 places, centre positions, put into O-ring seal 44; In described step 107, before cover 10 is fixedly connected on to cylinder barrel 9 tops, first at cylinder barrel 9 tops, put into O-ring seal 44; In described step 103, cylinder barrel 9 being fixedly connected on to base 8 tops is to adopt the second bolt 45; In described step 107, cover 10 being fixedly connected on to cylinder barrel 9 tops is to adopt the 3rd bolt 46.The speed parameter that the pressure head of the electronic universal tester 40 of setting in described step 2 presses down piston 13 is 0.4mm/min～0.6mm/min, and the pressure parameter that the pressure head of the electronic universal tester 40 of setting in described step 2 presses down piston 13 is 3MPa～5MPa.

The method is in fact the method that under disturbing influence, steady state method is measured coal and rock gas flow characteristic, is mainly used in side coal and rock in lane tested by the gas permeation property of disturbing influence.

Embodiment 2

As shown in Figure 2, the present embodiment is as different from Example 1: the present invention also comprises the second methane gas system, described the second methane gas system comprises the second methane gas tank 38, the gas outlet of described the second methane gas tank 38 is connected with snorkel 34 by the 3rd gas transport pipeline 47, is provided with the second reduction valve 48 and the second rain glass 49 on described the 3rd gas transport pipeline 47.Particularly, described the 3rd gas transport pipeline 47 joins by the 3rd rapid-acting coupling and snorkel 34.All the other structures are all identical with embodiment 1.

The method that adopts a kind of coal body Penetration Signature test macro in the present embodiment to carry out coal body Penetration Signature test under disturbing influence, comprises the following steps:

Step 103, cylinder barrel 9 is fixedly connected on to base 8 tops;

Step 109, the second gas transport pipeline 23 is connected on gas access 15;

Step 1011, the 3rd gas transport pipeline 47 is connected on snorkel 34;

Step 1012, electronic universal tester 40 is connected with computing machine 42, and Penetration Signature proving installation 41 centerings that step 101～step 108 has been assembled are placed on the base of electronic universal tester 40, and make the upper surface of piston 13 be positioned at described electronic universal tester 40 pressure head under;

Step 4, coal supply rock sample 3 load methane gas pressure: first, open breather valve 35, then, open the switch of the first reduction valve 24 and the switch of the second reduction valve 48, open described the first methane gas system and described the second methane gas system, and regulating the first reduction valve 24 and the second reduction valve 48, the gaseous tension that makes on the first rain glass 25 and the second rain glass 49 to show equates and is a ₁mPa, methane gas in the first methane gas tank 22 reduces pressure by being entered in the first inlet channel 5 and the second inlet channel 6 by the second gas transport pipeline 23 and gas access 15 by the first reduction valve 24, and enter in bleeder vent road 7, the methane gas in the second methane gas tank 38 reduces pressure by being entered in U-shaped cutting ferrule 4 by the 3rd gas transport pipeline 47 and snorkel 34 by the second reduction valve 48; After 5～10 minutes, close the switch of the first reduction valve 24 and the switch of the second reduction valve 48; Wherein, a ₁span be 0.5MPa～0.7MPa; By operating the first reduction valve 24, can realize entering the adjusting of the methane gas pressure size in ventilative duct 7; By operating the second reduction valve 48, can realize entering the adjusting of the methane gas pressure size in U-shaped cutting ferrule 4;

Step 502, unlatching recording instrument without paper 52;

Step 503, open the switch of the first reduction valve 24 and regulate the first reduction valve 24, making the gaseous tension showing on the first rain glass 25 is a ₂mPa, after 10～20 seconds, closes the switch of the first reduction valve 24; Wherein, a ₂>a ₁and a ₂-a ₁span be 0.3MPa～0.6MPa;

Step 504, disturbance ring 37 is mentioned and decontroled, make disturbance ring 37 along the downward free fall type of piston 13, impact annular projection 36 from eminence, form the shock vibration to coal petrography sample 3; In perturbation process, the oscillation intensity that 50 pairs of disturbances of vibration detection device produce detects and stores; 51 pairs of gas meters are penetrated in U-shaped cutting ferrule 4 through coal petrography samples 3 and the methane gas flows that flow in snorkel 34 detect in real time and detected data on flows Q is exported to recording instrument without paper 52, the data on flows Q that recording instrument without paper 52 real time record gas meters 51 detect and by data on flows Q real-time Transmission to computing machine 42;

Step 505, described computing machine 42 receive the data on flows Q of recording instrument without paper 52 real-time Transmission, and draw out the data on flows Q curve that t changes in time.

The method is in fact the method that under disturbing influence, Transient Method is measured coal and rock gas flow characteristic, is mainly used in the coal and rock of mine deep part tested by the gas permeation property of disturbing influence.

The above; it is only preferred embodiment of the present invention; not the present invention is imposed any restrictions, every any simple modification of above embodiment being done according to the technology of the present invention essence, change and equivalent structure change, and all still belong in the protection domain of technical solution of the present invention.

Claims

1. a coal body Penetration Signature test macro, it is characterized in that: comprise electronic universal tester (40), Penetration Signature proving installation (41), vibration detection device (50), the first methane gas system, confined pressure hydraulic system and computing machine (42), described Penetration Signature proving installation (41) centering is placed on the base of electronic universal tester (40), and described electronic universal tester (40) joins with computing machine (42);

Described Penetration Signature proving installation (41) is comprised of lane side simulation mechanism and lane side surrounding environment simulation mechanism, described lane helps simulation mechanism to comprise the baffle plate (1) of docking successively, air permeable plate (2), coal petrography sample (3) and U-shaped cutting ferrule (4), described baffle plate (1), air permeable plate (2), it is an integral body that coal petrography sample (3) and U-shaped cutting ferrule (4) are fastened by electrical adhesive tape, on the outer wall of described U-shaped cutting ferrule (4), be provided with scale, on described U-shaped cutting ferrule (4), be connected with snorkel (34), on described snorkel (34), be connected with breather valve (35) and gas meter (51), on described gas meter (51), be connected with recording instrument without paper (52), described recording instrument without paper (52) joins with computing machine (42), described baffle plate (1) middle part is provided with the first inlet channel (5), described air permeable plate (2) middle part is provided with the second inlet channel (6) being connected with the first inlet channel (5), the surrounding that is positioned at the second inlet channel (6) on described air permeable plate (2) is provided with radial ventilative duct (7), described lane helps surrounding environment simulation mechanism to comprise base (8), be fixedly connected on the cylinder barrel (9) at base (8) top and be fixedly connected on the cover (10) at cylinder barrel (9) top, on the sidewall of described cylinder barrel (9) middle part, have the lane side simulation mechanism patchhole inserting for lane side simulation mechanism, described base (8) crown center position is provided with groove, in described groove, be placed with push-down head (11), directly over described push-down head (11), be disposed with from top to bottom first concave surface pressure head (39), first convex surface pressure head (12) and piston (13), described piston (13) is through cover (10), and place, the centre position of cover (10) is provided with the through hole passing for piston (13), the middle part that is positioned at the outside piston (13) of cover (10) is provided with annular projection (36), on described piston (13), be set with the disturbance ring (37) that is positioned at annular projection (36) top, the vibration detection probe of described vibration detection device (50) is placed on the surface that is positioned at the outside piston (13) of cover (10), the upper surface of described piston (13) be positioned at described electronic universal tester (40) pressure head under, described lane helps simulation mechanism from side simulation mechanism patchhole insertion cylinder barrel (9) inside, described lane, and coal petrography sample (3) is to being sitting between the upper surface of push-down head (11) and the lower surface of first concave surface pressure head (39), U-shaped cutting ferrule (4) engagement connection is in simulation mechanism patchhole is helped in described lane, the gas access (15) that is provided with the 3rd inlet channel (14) on described base (8) and is connected with the 3rd inlet channel (14), on described push-down head (11), be provided with the 4th inlet channel (16) being connected with the 3rd inlet channel (14), described the 4th inlet channel (16) is connected with the first inlet channel (5) by the first gas transport pipeline (17), on described base (8), be provided with the confined pressure liquid flow channel (18) being connected with cylinder barrel (9) inner space, described base (8) sidepiece is provided with the confined pressure liquid entrance (19) being connected with confined pressure liquid flow channel (18), described cylinder barrel (9) side is provided with exhausr port (20), is connected with exhausr port plug (21) on described exhausr port (20),

Described the first methane gas system comprises the first methane gas tank (22), the gas outlet of described the first methane gas tank (22) is connected with gas access (15) by the second gas transport pipeline (23), on described the second gas transport pipeline (23), is provided with the first reduction valve (24) and the first rain glass (25);

Described confined pressure hydraulic system comprises the confined pressure liquid inflow pipe (27) that confined pressure liquid case (26) is connected with confined pressure liquid case (26) with one end, the other end of described confined pressure liquid inflow pipe (27) is connected with confined pressure liquid entrance (19), on described confined pressure liquid inflow pipe (27), be connected with hydraulic pump (28) and retaining valve (43), be positioned on the one section of confined pressure liquid inflow pipe (27) between hydraulic pump (28) and retaining valve (43) and be connected with confined pressure liquid run-down pipe (29), on described confined pressure liquid run-down pipe (29), be connected with confined pressure hydraulic coupling table (30) and confined pressure liquid surplus valve (31), be positioned on the one section of confined pressure liquid inflow pipe (27) between retaining valve (43) and confined pressure liquid entrance (19) and be connected with confined pressure liquid recirculatory pipe (32), on described confined pressure liquid recirculatory pipe (32), be connected with confined pressure liquid reverse flow valve (33).

2. according to a kind of coal body Penetration Signature test macro claimed in claim 1, it is characterized in that: comprise the second methane gas system, described the second methane gas system comprises the second methane gas tank (38), the gas outlet of described the second methane gas tank (38) is connected with snorkel (34) by the 3rd gas transport pipeline (47), on described the 3rd gas transport pipeline (47), is provided with the second reduction valve (48) and the second rain glass (49).

3. according to a kind of coal body Penetration Signature test macro described in claim 1 or 2, it is characterized in that: between described base (8) and push-down head (11), between base (8) and cylinder barrel (9), between cylinder barrel (9) and cover (10), between first concave surface pressure head (39) and first convex surface pressure head (12), between U-shaped cutting ferrule (4) and cylinder barrel (9) and be provided with O-ring seal (44) between cover (10) and piston (13); Described cylinder barrel (9) is fixedly connected on base (8) top by the second bolt (45), and described cover (10) is fixedly connected on cylinder barrel (9) top by the 3rd bolt (46); One end of described the first gas transport pipeline (17) joins by the first rapid-acting coupling and the first inlet channel (5), and the other end of described the first gas transport pipeline (17) joins by the second rapid-acting coupling and the 4th inlet channel (16).

4. according to a kind of coal body Penetration Signature test macro described in claim 1 or 2, it is characterized in that: the shape of described cylinder barrel (9) outline, the shape of push-down head (11) outline, the shape of coal petrography sample (3) outline, the shape of the shape of U-shaped cutting ferrule (4) outline and first concave surface pressure head (39) bottom outline is cuboid, the length of the length of described coal petrography sample (3) and push-down head (11) and first concave surface pressure head (39) bottom equal in length, the width of the width of described coal petrography sample (3) and push-down head (11), the width of the width of U-shaped cutting ferrule (4) and first concave surface pressure head (39) bottom equates, the height of described coal petrography sample (3) equates with the height of U-shaped cutting ferrule (4) outline, distance between the lower surface of described annular projection (36) lower surface and piston (13) adds that the overall height of first concave surface pressure head (39) after combination and first convex surface pressure head (12) is greater than the distance between upper surface to the upper surface of push-down head (11) of cover (10).

5. according to a kind of coal body Penetration Signature test macro described in claim 1 or 2, it is characterized in that: the super dynamic signalling analysis system that described vibration detection device (50) is DH5960 for model.

6. according to a kind of coal body Penetration Signature test macro claimed in claim 2, it is characterized in that: described the 3rd gas transport pipeline (47) joins by the 3rd rapid-acting coupling and snorkel (34).

7. the utilization method that device carries out the test of coal body Penetration Signature as claimed in claim 1, is characterized in that the method comprises the following steps:

Step 101, by baffle plate (1), air permeable plate (2), coal petrography sample (3) and the described U-shaped cutting ferrule (4) of docking successively, by electrical adhesive tape, to be fastened be an integral body, is combined into lane and helps simulation mechanism;

Step 102, push-down head (11) is placed in described groove, and the 4th inlet channel (16) is connected with the 3rd inlet channel (14), and one end of the first gas transport pipeline (17) is connected on the 4th inlet channel (16);

Step 103, cylinder barrel (9) is fixedly connected on to base (8) top;

Step 104, one end of helping simulation mechanism to have baffle plate (1) in described lane are inserted described lane and are helped in simulation mechanism patchhole, and be arranged on the scale on U-shaped cutting ferrule (4) outer wall by observation, make coal petrography sample (3) to being sitting on the upper surface of push-down head (11);

Step 105, the other end of the first gas transport pipeline (17) is connected on the first inlet channel (5);

Step 106, first concave surface pressure head (39) is aligned on the upper surface that is positioned over coal petrography sample (3), and place first convex surface pressure head (12) at the top of first concave surface pressure head (39);

Step 107, by piston (13) through being arranged in the through hole at cover (10) centre position place, and cover (10) is fixedly connected on to cylinder barrel (9) top, guarantee the center of piston (13) and the central alignment of first convex surface pressure head (12) simultaneously;

Step 108, disturbance ring (37) is sleeved on to the position that is positioned at annular projection (36) top on piston (13);

Step 109, the second gas transport pipeline (23) is connected on gas access (15);

Step 1010, confined pressure liquid inflow pipe (27) is connected on confined pressure liquid entrance (19);

Step 1011, electronic universal tester (40) is connected with computing machine (42), and Penetration Signature proving installation (41) centering that step 101～step 108 has been assembled is placed on the base of electronic universal tester (40), and make the upper surface of piston (13) be positioned at described electronic universal tester (40) pressure head under;

Step 2, coal supply rock sample (3) load axial compression: on computing machine (42), open mounted electronic universal tester software in advance, operation electronic universal tester software startup electronic universal tester (40), and the pressure head of setting electronic universal tester (40) presses down speed parameter and the pressure parameter of piston (13), the pressure head of electronic universal tester (40) presses down piston (13) according to the speed parameter of setting, until be presented at the pressure parameter that pressure parameter in electronic universal tester software reaches setting;

Step 3, coal supply rock sample (3) load confined pressure: take off the exhausr port plug (21) being connected on exhausr port (20), open exhausr port (20), open the feed liquor switch of confined pressure liquid surplus valve (31), open described confined pressure hydraulic system, confined pressure liquid in confined pressure liquid case (26) pressurizes by being flowed in cylinder barrel (9) by confined pressure liquid inflow pipe (27) and confined pressure liquid entrance (19) through the second hydraulic pump (37), when exhausr port (20) has confined pressure liquid to flow out, exhausr port plug (21) is connected to exhausr port (20) upper, closes exhausr port (20);

Step 4, coal supply rock sample (3) load methane gas pressure: first, open breather valve (35), then, open the switch of the first reduction valve (24), open described the first methane gas system, methane gas in the first methane gas tank (22) reduces pressure by being entered in the first inlet channel (5) and the second inlet channel (6) by the second gas transport pipeline (23) and gas access (15) by the first reduction valve (24), and enters in bleeder vent road (7);

Step 5, the methane gas flow that coal petrography sample (3) under disturbing influence is permeated detect, and its detailed process is as follows:

Step 501, the vibration detection probe of vibration detection device (50) is placed on the surface that is positioned at the outside piston (13) of cover (10), opens vibration detection device (50);

Step 502, unlatching recording instrument without paper (52);

Step 503, disturbance ring (37) is mentioned and is decontroled, make disturbance ring (37) from eminence along piston (13) downwards free fall type impact annular projection (36), form the shock vibration to coal petrography sample (3); In perturbation process, the oscillation intensity that vibration detection device (50) produces disturbance detects and stores, simultaneously, gas meter (51) is to being penetrated in U-shaped cutting ferrule (4) through coal petrography sample (3) and the methane gas flow flowing in snorkel (34) detects in real time and detected data on flows Q is exported to recording instrument without paper (52), the data on flows Q that recording instrument without paper (52) real time record gas meter (51) detects and by data on flows Q real-time Transmission to computing machine (42);

Step 504, described computing machine (42) receive the data on flows Q of recording instrument without paper (52) real-time Transmission, and draw out the data on flows Q curve that t changes in time.

8. the utilization method that device carries out the test of coal body Penetration Signature as claimed in claim 2, is characterized in that the method comprises the following steps:

Step 103, cylinder barrel (9) is fixedly connected on to base (8) top;

Step 1011, the 3rd gas transport pipeline (47) is connected on snorkel (34);

Step 1012, electronic universal tester (40) is connected with computing machine (42), and Penetration Signature proving installation (41) centering that step 101～step 108 has been assembled is placed on the base of electronic universal tester (40), and make the upper surface of piston (13) be positioned at described electronic universal tester (40) pressure head under;

Step 4, coal supply rock sample (3) load methane gas pressure: first, open breather valve (35), then, open the switch of the first reduction valve (24) and the switch of the second reduction valve (48), open described the first methane gas system and described the second methane gas system, and regulate the first reduction valve (24) and the second reduction valve (48), the upper gaseous tension showing of the first rain glass (25) and the second rain glass (49) is equated and be a ₁mPa, methane gas in the first methane gas tank (22) reduces pressure by being entered in the first inlet channel (5) and the second inlet channel (6) by the second gas transport pipeline (23) and gas access (15) by the first reduction valve (24), and enter in bleeder vent road (7), the methane gas in the second methane gas tank (38) reduces pressure by being entered in U-shaped cutting ferrule (4) by the 3rd gas transport pipeline (47) and snorkel (34) by the second reduction valve (48); After 5～10 minutes, close the switch of the first reduction valve (24) and the switch of the second reduction valve (48); Wherein, a ₁span be 0.5MPa～0.7MPa;

Step 502, unlatching recording instrument without paper (52);

Step 503, open the switch of the first reduction valve (24) and regulate the first reduction valve (24), making the upper gaseous tension showing of the first rain glass (25) is a ₂mPa, after 10～20 seconds, closes the switch of the first reduction valve (24); Wherein, a ₂>a ₁and a ₂-a ₁span be 0.3MPa～0.6MPa;

Step 504, disturbance ring (37) is mentioned and is decontroled, make disturbance ring (37) from eminence along piston (13) downwards free fall type impact annular projection (36), form the shock vibration to coal petrography sample (3); In perturbation process, the oscillation intensity that vibration detection device (50) produces disturbance detects and stores; Gas meter (51) is to being penetrated in U-shaped cutting ferrule (4) through coal petrography sample (3) and the methane gas flow flowing in snorkel (34) detects in real time and detected data on flows Q is exported to recording instrument without paper (52), the data on flows Q that recording instrument without paper (52) real time record gas meter (51) detects and by data on flows Q real-time Transmission to computing machine (42);

Step 505, described computing machine (42) receive the data on flows Q of recording instrument without paper (52) real-time Transmission, and draw out the data on flows Q curve that t changes in time.

9. according to the method described in claim 7 or 8, it is characterized in that: in described step 102, before push-down head (11) is placed in described groove, first in groove, put into O-ring seal (44); In described step 103, before cylinder barrel (9) is fixedly connected on to base (8) top, first at base (8) top, put into O-ring seal (44); In described step 104 in described lane side simulation mechanism patchhole is inserted in the one end described lane side simulation mechanism to baffle plate (1) before, first in simulation mechanism patchhole is helped in described lane, put into O-ring seal (44); In described step 106, before first convex surface pressure head (12) is placed on to the top of first concave surface pressure head (39), first in first concave surface pressure head (39), put into O-ring seal (44); In described step 107 by piston (13) through before in being arranged on the through hole at cover (10) centre position place, first in the through hole that is arranged on place, cover (10) centre position, put into O-ring seal (44); In described step 107, before cover (10) is fixedly connected on to cylinder barrel (9) top, first at cylinder barrel (9) top, put into O-ring seal (44); In described step 103, cylinder barrel (9) being fixedly connected on to base (8) top is to adopt the second bolt (45); In described step 107, cover (10) being fixedly connected on to cylinder barrel (9) top is to adopt the 3rd bolt (46).

10. according to the method described in claim 7 or 8, it is characterized in that: the speed parameter that the pressure head of the electronic universal tester of setting in described step 2 (40) presses down piston (13) is 0.4mm/min～0.6mm/min, the pressure parameter that the pressure head of the electronic universal tester of setting in described step 2 (40) presses down piston (13) is 3MPa～5MPa.