CN207007659U - A kind of axle servo seepage apparatus of coal seam containing gas dynamic disturbances fluid structurecoupling three - Google Patents
A kind of axle servo seepage apparatus of coal seam containing gas dynamic disturbances fluid structurecoupling three Download PDFInfo
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- CN207007659U CN207007659U CN201720606823.8U CN201720606823U CN207007659U CN 207007659 U CN207007659 U CN 207007659U CN 201720606823 U CN201720606823 U CN 201720606823U CN 207007659 U CN207007659 U CN 207007659U
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Abstract
A kind of axle servo seepage apparatus of coal seam containing gas dynamic disturbances fluid structurecoupling three is the utility model is related to, including：Axial loading device, axial loading device top are provided with triaxial cell, are provided with dynamic disturbances device at the top of triaxial cell, gas injection system is connected to triaxial cell by conduit.On the basis of the balancing gate pit of routine, a disturbing rod is provided with inside the pressure-containing member of top, the point for applying axial direction by connecting vibrator disturbs load, to realize the common loading of triaxial pressure and axial dynamic disturbances power, vibrational perturbation suffered in coal petrography recovery process can really be simulated, so as to more accurately analyze the Evolution of permeability in coal petrography recovery process, the dynamic disturbances xial feed of different frequency can synchronously be applied during traditional ordinary triaxial test, and there is load SERVO CONTROL, the features such as automatic data collection, add available for deep rock in high-ground stress, unloading is with circulating mechanical property research when multiple exterior power load acts synergistically.
Description
Technical field：
It the utility model is related to Geotechnical Engineering field, and in particular to a kind of coal seam containing gas dynamic disturbances fluid structurecoupling
Three axle servo seepage apparatus.
Background technology：
With the continuous development of economy, the mankind are also to be growing on and on to the demand of coal, and coal is still in occupation of can not replace
The position in generation, this just directly results in coal in China yield and rises year by year is continuously increased with coal mining depth.Opened with superficial part
Adopt and compare, high-ground stress, High-geotemperature, high artesian body and explosion, mechanical equivalent of light excavation energetic disturbance are faced with during deep mining
Special complex mechanical environment.Therefore, with deep increase is adopted and mining rate continues to increase, the safety in production of China's coal-mine is faced with
Acid test.
At present, many mines come into deep mining, in the state of high stress, are easily tunneled, be back production, local disrumpent feelings
Acted on Deng Disturbance stress and induce the coal rock dynamic disasters such as bump.Coal seam is after by mining influence, stress of coal seam redistribution,
Damage even damaged deformation locally occurs for coal body, and coal body hole-fissured structure and penetrating power change, and porosity and oozes
The change of permeability not only results in the change of gas porous flow speed and pore pressure distribution, and can cause stress of coal seam and displacement
Change.In the recovery process in colliery, hole, crack in lithostructure are both the good medium and its solution of gas bearing
Inhale, the important channel of flowing.Coal body permeability and crack size, spacing, connectedness, width, crack are mineral-filled, Distribution Characteristics
Fracture water flow Deng coal body is closely related.Influenceed by carrying out based on exploitation disturbance, crustal stress, gas and coal body mechanical property etc.
The deep coal petrography On The Characters of Methane Seepage research of factor, is Gas Disaster preventing and treating and the key components using basic theory.Cause
This, considers that Engineering Vibration acts on lower gas porous flow law study with off-load exploitation and is more of practical significance.
Utility model content：
The purpose of this utility model is to provide a kind of axle servo seepage apparatus of coal seam containing gas dynamic disturbances fluid structurecoupling three,
Be mainly used in study coal petrography recovery process in the presence of Engineering Disturbance coal body internal void, crack constantly change, coal body shape
The dynamic evolution rule that state and gas porous flow are presented.
To achieve the above object, the utility model uses following technical scheme：
The axle servo seepage apparatus of a kind of coal seam containing gas dynamic disturbances fluid structurecoupling three provided by the utility model, including：
Axial loading device, the axial loading device top are provided with triaxial cell, dynamic are provided with the top of the triaxial cell
Disturbance device, gas injection system are connected to the triaxial cell by conduit；
The axial loading device includes loading master cylinder, there is piston rod, loading pressure head one end inside loading master cylinder
It is correspondingly arranged above piston rod, its other end is connected with load sensor, and the load sensor is inlaid in loading master cylinder
Cylinder interior, and its outer wall with load master cylinder inwall be in contact；
The triaxial cell includes top pressure-containing member and bottom pressure-containing member, and in the top pressure-containing member with
The sample storehouse that Open Side Down is provided between portion's pressure-containing member, first through hole, disturbing rod are offered on the top pressure-containing member
It is plugged in the first through hole, methane gas outlet, the top pressure-bearing portion is additionally provided with the top pressure-containing member
Discharge chamber, and the discharge chamber upper end and the methane gas outlet are provided between part and sample storehouse, its lower end passes through
Exhaust bee-hole is connected with the sample storehouse, and the support shaft with the disturbing rod face, institute are provided with the bottom pressure-containing member
State and the second through hole is offered in support shaft, air inlet, second through hole and institute are provided with the bottom pressure-containing member lower end
Air inlet connection is stated, the air inlet is set by conduit connecting fluid unit between the bottom pressure-containing member and sample storehouse
There is inlet chamber, and inlet chamber upper end is communicated by air inlet bee-hole with sample storehouse, its lower end connects with second through hole, under described
Portion pressure-containing member lower end further respectively has hydraulic oil inlet and hydraulic oil outlet, is connect in the lower end in the sample storehouse provided with sensor
The end of a thread, after the sensor wire head passes through the bottom pressure-containing member, it is connected through data wire with data collecting system；
The dynamic disturbances device includes disturbing rod, and the disturbing rod upper end is provided with vibrator, on the vibrator top
The cable being connected with the top of device, and apply disturbance load by the cable；
The gas injection system includes element of fluid, gas is filled with the element of fluid, the element of fluid is by leading
Pipe connects with the triaxial cell.
The air inlet bee-hole and exhaust bee-hole are cylindrical structure, and multiple through holes are opened up on the cylinder, form honeybee
Nest shape structure, the outer rim of the cylinder are in contact with the inwall of the inlet chamber or outlet chamber.
Cushion block is fixed with left and right sides of the disturbing rod, to avoid dynamic disturbances device from directly being rushed to whole device
Hit.
The support shaft is the up big and down small Step Shaft of the diameter of axle, and the step surface of the support shaft spacing is held in the bottom
Component upper ends are pressed, the support shaft lower end is fixedly connected through nut with the lower pressure-containing member.
The conduit is made up of tracheae and steel pipe, and described tracheae one end connects with the element of fluid, other end connection institute
One end of steel pipe is stated, the other end of the steel pipe is connected with the triaxial cell, and gas injection connection is provided with the tracheae
Head and gas injection air pressure regulator, pressure gauge and pressure gauge compression regulating valve are provided with the steel pipe.
Described tracheae uses pressure-resistant 31.5MPa high-pressure rubber pipe, and the connection of the tracheae and gas injection connector uses
High pressure sealing joint, equipped with high pressure resistant combination mat, to ensure the air-tightness of air inlet and gas outlet.
The data acquisition logging system mainly by be affixed on the foil gauge on rock sample surface, load sensor, electronic computer,
Data acquisition software and data transmission wires etc. are formed, and are deformation, load, the displacements collected by foil gauge and load sensor
Transmitted etc. data by data transmission wires to electronic computer.
A kind of beneficial effect of the axle servo seepage apparatus of coal seam containing gas dynamic disturbances fluid structurecoupling three of the utility model：
On the basis of conventional balancing gate pit, a disturbing rod is provided with inside the pressure-containing member of top, applies axle by connecting vibrator
To point disturb load, to realize the common loading of triaxial pressure and axial dynamic disturbances power, can really simulate coal petrography and open
Suffered vibrational perturbation during adopting, so as to more accurately analyze the Evolution of permeability in coal petrography recovery process, energy
It is enough synchronously to apply the dynamic disturbances xial feed of different frequency during traditional ordinary triaxial test, and there is load servo
The features such as control, automatic data collection, available for deep rock in high-ground stress Load-unload with circulating multiple exterior power lotus
Carry mechanical property research during synergy.
Brief description of the drawings：
Fig. 1 is that a kind of structure of the axle servo seepage apparatus of coal seam containing gas dynamic disturbances fluid structurecoupling three of the utility model is shown
It is intended to；
Fig. 2 is the structural representation of triaxial cell；
In figure：1- axial loading devices, 101- loading master cylinders, 102- loading pressure heads, 103- load sensors, the axles of 2- tri-
Balancing gate pit, 201- tops pressure-containing member, 202- bottoms pressure-containing member, 203- samples storehouse, the outlet of 204- methane gas, 205- exhausts
Chamber, 206- exhaust bee-holes, 207- support shafts, 208- air inlets, 209- inlet chambers, 210- air inlet bee-holes, 211- hydraulic oil inlets,
212- hydraulic oil outlets, 3- dynamic disturbances devices, 301- disturbing rods, 302- vibrators, 303- cables, 304- cushion blocks, 4- gas injections
System, 401- element of fluids, 402- tracheaes, 403- steel pipes, 404- gas injection connectors, 405- gas injection air pressure regulators, 406- pressures
Power table, 407- pressure gauge compression regulating valves.
Embodiment：
With reference to embodiment, the utility model is described in further detail.
According to Fig. 1~Fig. 2, a kind of axle servo seepage apparatus of coal seam containing gas dynamic disturbances fluid structurecoupling three, including：
Axial loading device 1, the axial loading device top are provided with triaxial cell 2, and the top of triaxial cell 2 is provided with dynamic
State disturbance device 3, gas injection system 4 are connected to the triaxial cell 2 by conduit.
The axial loading device 1 includes loading master cylinder 101, there is piston rod, loading pressure inside loading master cylinder 101
First 102 one end is correspondingly arranged above piston rod, and its other end is connected with load sensor 103, and the load sensor 103 is embedding
Mounted in the cylinder interior of loading master cylinder 101, and its outer wall is in contact with loading the inwall of master cylinder 101, described axially loaded
Device also includes Hydraulic servo system, provides certain power to the loading master cylinder 101 by the Hydraulic servo system or displacement is carried out
Loading, the load of application rely on the load sensor 103 being arranged on loading pressure head 102 to feed back to computer；
The triaxial cell 2 includes top pressure-containing member 201 and bottom pressure-containing member 202, and in the top pressure-bearing
The sample storehouse 203 that Open Side Down is provided between part 201 and bottom pressure-containing member 202, is opened on the top pressure-containing member 201
Provided with first through hole, disturbing rod 301 is plugged in the first through hole, is additionally provided with the top pressure-containing member 201 watt
This gas vent 204, discharge chamber 205, and the discharge chamber are provided between the top pressure-containing member 201 and sample storehouse 203
205 upper ends are connected with methane gas outlet 204, and its lower end is connected by being vented bee-hole 206 with the sample storehouse 203, institute
The support shaft 207 being provided with bottom pressure-containing member 202 with the face of disturbing rod 301 is stated, is offered in the support shaft 207
Second through hole, air inlet 208, second through hole and the air inlet 208 are provided with the lower end of bottom pressure-containing member 202
Connection, the support shaft 207 is the up big and down small Step Shaft of the diameter of axle, and the step surface of the support shaft 207 is spacing under described
The upper end of portion's pressure-containing member 202, the lower end of support shaft 207 are fixedly connected through nut with the lower pressure-containing member 202, the air inlet
Mouthfuls 208 by conduit connecting fluid unit 4, and inlet chamber 209 is provided between the bottom pressure-containing member 202 and sample storehouse 203,
And the upper end of inlet chamber 209 is communicated by air inlet bee-hole 210 with sample storehouse 203, its lower end connects with second through hole, under described
The lower end of portion's pressure-containing member 202 further respectively has hydraulic oil inlet 211 and hydraulic oil outlet 212, in the lower end in the sample storehouse 203
Provided with sensor wire head, after the sensor wire head passes through the bottom pressure-containing member 202, through data wire and data acquisition
System is connected, therefore the circumferential pressure in sample storehouse 202 and the circumferential deformation of test specimen effectively can be measured.
The air inlet bee-hole 210 and exhaust bee-hole 206 are cylindrical structure, and multiple through holes are opened up on the cylinder,
The alveolate texture of ring-type face is formed, realizes " face inflation ", and is no longer conventional " point inflation ", is realized more life-likely
Actual coal seam coal gas dynamics situation, the outer rim of the cylinder are in contact with the inwall of the inlet chamber or outlet chamber.
The dynamic disturbances device 3 includes disturbing rod 301, and cushion block 304 is fixed with the left and right sides of disturbing rod 301,
To avoid impact of the dynamic disturbances device 3 directly to whole device, the upper end of disturbing rod 301 is provided with vibrator 302, in institute
The cable 303 that the top of vibrator 302 is connected with the top of device is stated, and applies disturbance load by the cable 303.
The gas injection system 4 includes element of fluid 401, and gas, the element of fluid are filled with the element of fluid 401
401 are connected by conduit with the triaxial cell 2, realize the Gas-solid Coupling of gas and solid coal sample, the conduit is by tracheae
402 and steel pipe 403 form, described one end of tracheae 402 connects with the element of fluid 401, and the other end connects the steel pipe 403
One end, the other end of the steel pipe 403 are connected with the triaxial cell 2, and gas injection connector is provided with the tracheae 402
404 and gas injection air pressure regulator 405, pressure gauge 406 and pressure gauge compression regulating valve 407 are provided with the steel pipe 403, and are entered
One step, described tracheae 402 is using pressure-resistant 31.5MPa high-pressure rubber pipe, and the tracheae 402 and gas injection connector 404
Connection uses high pressure sealing joint, equipped with high pressure resistant combination mat, to ensure the air-tightness of air inlet and gas outlet.
The data acquisition logging system is mainly by being affixed on the foil gauge, load sensor, electrometer of coal petrography specimen surface
Calculation machine, data acquisition software and data transmission wires etc. are formed, and are deformation, the lotuses collected by foil gauge and load sensor
The data such as load, displacement are transmitted to electronic computer by data transmission wires.
Described device is also circumscribed with hydraulic servo control system, and the hydraulic servo control system includes axle pressure loading oil pump
Oil pump is loaded with confined pressure, the axle pressure loading oil pump is connected by pipeline with the hydraulic oil inlet 211 and hydraulic oil outlet 212
It is logical, the confined pressure loading oil pump by pipeline with loading the entering of master cylinder, oil discharge outlet communicates.
A kind of operation principle of the axle servo seepage apparatus of coal seam containing gas dynamic disturbances fluid structurecoupling three of the utility model is such as
Under：
(1) the coal petrography sample prepared is arranged in the support shaft 207 of triaxial cell 2, to ensure the airtight of sample
Property, the first glue-line that one layer of 1mm or so is smeared on coal petrography sample, and by a cylindrical section shape shrinkable sleeve on coal petrography sample, institute
It is longer 40mm than the coal petrography specimen length to state the length of heat-shrink tube, is uniformly blown cylindric heat-shrink tube tightly with hair dryer, to ensure
The side wall of cylindric heat-shrink tube and coal petrography sample is in close contact；
(2) discharge chamber 205 and inlet chamber 209 are installed in the upper and lower ends of coal petrography sample, so that methane gas can be uniform
The whole section for acting on coal petrography sample；
(3) top pressure-containing member 201 is attached to coal petrography sample upper end, connects conduit, disturbing rod 301 and discharge chamber
205 connect, and whether each system of check device is normal；
(4) charging valve is opened, methane gas is poured in coal petrography sample, makes the abundant adsorption equilibrium of methane gas；
(5) load master cylinder and apply axle pressure and confined pressure to coal petrography sample, vibrator 302 drives disturbing rod 301 to try coal petrography
Sample applies the disturbance of an axial direction, to simulate the suffered disturbance in coal petrography exploitation；
(6) experiment under different condition is carried out according to the testing program of formulation.
Finally it should be noted that：Above example is only illustrating the technical solution of the utility model rather than it is limited
System, although the utility model is described in detail with reference to above-described embodiment, those of ordinary skill in the art should manage
Solution：Specific embodiment of the present utility model can still be modified or equivalent substitution, and without departing from the utility model
Any modification of spirit and scope or equivalent substitution, it all should cover among present claims scope.
Claims (7)
- A kind of 1. axle servo seepage apparatus of coal seam containing gas dynamic disturbances fluid structurecoupling three, it is characterised in that：Including：It is axially loaded Device, the axial loading device top are provided with triaxial cell, dynamic disturbances device are provided with the top of the triaxial cell, Gas injection system is connected to the triaxial cell by conduit；The axial loading device includes loading master cylinder, there is piston rod inside loading master cylinder, and loading pressure head one end corresponds to It is arranged on above piston rod, its other end is connected with load sensor, and the load sensor is inlaid in the cylinder of loading master cylinder Internal portion, and its outer wall is in contact with loading the inwall of master cylinder；The triaxial cell includes top pressure-containing member and bottom pressure-containing member, and is held in the top pressure-containing member and bottom The sample storehouse that Open Side Down is provided between splenium part, offers first through hole on the top pressure-containing member, disturbing rod plugs In the first through hole, be additionally provided with the top pressure-containing member methane gas outlet, the top pressure-containing member and Discharge chamber, and the discharge chamber upper end and the methane gas outlet are provided between sample storehouse, its lower end passes through exhaust Bee-hole is connected with the sample storehouse, and the support shaft with the disturbing rod face, the branch are provided with the bottom pressure-containing member Offer the second through hole on support axle, be provided with air inlet in the bottom pressure-containing member lower end, second through hole with it is described enter Gas port connects, the air inlet by conduit connecting fluid unit, be provided between the bottom pressure-containing member and sample storehouse into Air cavity, and inlet chamber upper end is communicated by air inlet bee-hole with sample storehouse, its lower end is connected with second through hole, and the bottom is held Pressure lower further respectively has hydraulic oil inlet and hydraulic oil outlet, and sensor wire is provided with the lower end in the sample storehouse Head, after the sensor wire head passes through the bottom pressure-containing member, it is connected through data wire with data collecting system；The dynamic disturbances device includes disturbing rod, and the disturbing rod upper end is provided with vibrator, is connected on the vibrator top There is the cable at the top of device, and apply disturbance load by the cable；The gas injection system includes element of fluid, is filled with gas in the element of fluid, the element of fluid by conduit with Triaxial cell's connection.
- 2. the axle servo seepage apparatus of a kind of coal seam containing gas dynamic disturbances fluid structurecoupling three according to claim 1, it is special Sign is：The air inlet bee-hole and exhaust bee-hole are cylindrical structure, and multiple through holes are opened up on the cylinder, form honeycomb Shape structure, the outer rim of the cylinder are in contact with the inwall of the inlet chamber or outlet chamber.
- 3. the axle servo seepage apparatus of a kind of coal seam containing gas dynamic disturbances fluid structurecoupling three according to claim 1, it is special Sign is：Cushion block is fixed with left and right sides of the disturbing rod, to avoid dynamic disturbances device from directly being rushed to whole device Hit.
- 4. the axle servo seepage apparatus of a kind of coal seam containing gas dynamic disturbances fluid structurecoupling three according to claim 1, it is special Sign is：The support shaft is the up big and down small Step Shaft of the diameter of axle, and the step surface of the support shaft spacing is held in the bottom Component upper ends are pressed, the support shaft lower end is fixedly connected through nut with the bottom pressure-containing member.
- 5. the axle servo seepage apparatus of a kind of coal seam containing gas dynamic disturbances fluid structurecoupling three according to claim 1, it is special Sign is：The conduit is made up of tracheae and steel pipe, and described tracheae one end connects with the element of fluid, described in other end connection One end of steel pipe, the other end of the steel pipe are connected with the triaxial cell, and gas injection connector is provided with the tracheae With gas injection air pressure regulator, pressure gauge and pressure gauge compression regulating valve are provided with the steel pipe.
- 6. the axle servo seepage apparatus of a kind of coal seam containing gas dynamic disturbances fluid structurecoupling three according to claim 5, it is special Sign is：Described tracheae uses pressure-resistant 31.5MPa high-pressure rubber pipe, and the connection of the tracheae and gas injection connector is using high Densification sealing joint, equipped with high pressure resistant combination mat, to ensure the air-tightness of air inlet and gas outlet.
- 7. the axle servo seepage apparatus of a kind of coal seam containing gas dynamic disturbances fluid structurecoupling three according to claim 1, it is special Sign is：The data acquisition logging system mainly by be affixed on the foil gauge on rock sample surface, load sensor, electronic computer, Data acquisition software and data transmission wires are formed, and collected by foil gauge and load sensor deformation, load, displacement this A little data are transmitted to the electronic computer by the data transmission wires.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720606823.8U CN207007659U (en) | 2017-05-27 | 2017-05-27 | A kind of axle servo seepage apparatus of coal seam containing gas dynamic disturbances fluid structurecoupling three |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720606823.8U CN207007659U (en) | 2017-05-27 | 2017-05-27 | A kind of axle servo seepage apparatus of coal seam containing gas dynamic disturbances fluid structurecoupling three |
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| Publication Number | Publication Date |
|---|---|
| CN207007659U true CN207007659U (en) | 2018-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720606823.8U Expired - Fee Related CN207007659U (en) | 2017-05-27 | 2017-05-27 | A kind of axle servo seepage apparatus of coal seam containing gas dynamic disturbances fluid structurecoupling three |
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| Country | Link |
|---|---|
| CN (1) | CN207007659U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107024420A (en) * | 2017-05-27 | 2017-08-08 | 辽宁工程技术大学 | A kind of axle servo seepage apparatus of coal seam containing gas dynamic disturbances fluid structurecoupling three |
| CN109596501A (en) * | 2019-01-29 | 2019-04-09 | 辽宁工程技术大学 | Top board seepage experimental rig and method under the influence of a kind of dynamic load |
-
2017
- 2017-05-27 CN CN201720606823.8U patent/CN207007659U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107024420A (en) * | 2017-05-27 | 2017-08-08 | 辽宁工程技术大学 | A kind of axle servo seepage apparatus of coal seam containing gas dynamic disturbances fluid structurecoupling three |
| CN109596501A (en) * | 2019-01-29 | 2019-04-09 | 辽宁工程技术大学 | Top board seepage experimental rig and method under the influence of a kind of dynamic load |
| CN109596501B (en) * | 2019-01-29 | 2023-08-22 | 辽宁工程技术大学 | Roof seepage test device and method under influence of dynamic load |
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Granted publication date: 20180213 |