CN202599928U - Coal and gas outburst jet characteristic simulation experimental device - Google Patents
Coal and gas outburst jet characteristic simulation experimental device Download PDFInfo
- Publication number
- CN202599928U CN202599928U CN 201220152419 CN201220152419U CN202599928U CN 202599928 U CN202599928 U CN 202599928U CN 201220152419 CN201220152419 CN 201220152419 CN 201220152419 U CN201220152419 U CN 201220152419U CN 202599928 U CN202599928 U CN 202599928U
- Authority
- CN
- China
- Prior art keywords
- sleeve
- end cover
- coal
- side guide
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model belongs to an experimental device for gas monitoring in a coal mine and in particular relates to a coal and gas outburst jet characteristic simulation experimental device. The upper end of a sleeve (1) is in threaded connection with an upper end cover (2), and the lower end of the sleeve (1) is in threaded connection with a lower end cover (3); a lower pressing plate (7) is arranged between the sleeve (1) and the lower end cover (3); a lower positioning plate (9) is arranged between the lower pressing plate (7) and the sleeve (1); a solid side pressing plate (10) is arranged on the lower positioning plate (9); a cylinder (13) is embedded on the solid side pressing plate (10); a hollow side pressing plate (11) is arranged on the lower positioning plate (9) on the right side; an upper positioning plate (8) is arranged on the hollow side pressing plate (11) and the solid side pressing plate (10); an upper pressing plate (6) is arranged above a coal sample (16); a baffle (5) is arranged above the sleeve (1); a piston rod (4-1) is arranged in a central hole of the baffle (5); and a piston (4) is arranged between the upper end cover (2) and the baffle (5). According to the coal and gas outburst jet characteristic simulation experimental device, the influence of passively and manually opening an outburst orifice on the outburst energy due to a low speed is avoided, the constant pressure is kept, and the required pressure can be accurately adjusted.
Description
Technical field
The utility model belongs in the colliery gas monitor and uses experimental provision, and particularly a kind of coal and gas are given prominence to the fluidic features analogue experiment installation.
Background technology
Along with the China's coal-mine resource exploitation develops to the deep gradually, the outstanding generation frequency of coal and gas gets more and more, and its harmfulness also increases further, and Safety of Coal Mine Production is caused great harm.Coal and gas are outstanding as a kind of unusual complicated mine dynamic phenomenon; It receive many factor affecting and restriction; And at present coal and the outstanding research of gas also are far from reaching the degree that mechanism is clear, rule is clear and definite; More existing coals and gas burst experiment device; Though deepened the progress of coal and gas outburst mechanism to a certain extent, but still had following shortcoming: the outstanding coal sample of the experiment that experimental provision is simulated is small size mostly, and the small size coal sample can not fully disclose out with Changing Pattern in the process of giving prominence to; The aspis unfolding mode is a passive type armstrong's patent mode in the particularly outstanding simulation test device, and opening speed is slower, has influenced coal and gas outstanding time and intensity and rule accuracy to a certain extent.In addition, the coal sample on-load pressure is not stabilized in a fixed value mostly in the past, when taking place to give prominence to, can not judges that coal sample was under which force value, to take place to give prominence to, therefore, be difficult to find out coal and the outstanding critical pressure value of gas.
Summary of the invention
The purpose of the utility model is to overcome above-mentioned technical deficiency, provides a kind of aspis to open fast, test coal and the outstanding fluidic features analogue experiment installation of gas convenient, accuracy of judgement.
The technical scheme that the utility model technical solution problem adopts is: coal and gas are given prominence to the fluidic features analogue experiment installation and are comprised bottom end cover, upper end cover, sleeve, the upper end that the is characterized in sleeve upper end cover that is threaded, the lower end of the sleeve bottom end cover that is threaded; Be connected with bottom end cover at the sleeve inner bottom part lower platen is housed, between the both sides of lower platen and the sleeve location-plate is housed down, the oil cylinder pilot hole place on the following location-plate of adjacent three sides, on the corresponding sleeve establishes solid side guide; Setting-in oil cylinder on the solid side guide; Charge of oil cylinder piston in the oil cylinder, oil supply hole is established in the center on the oil cylinder bottom surface, and the shoulder hole on the following location-plate on right side, on the corresponding sleeve is equipped with hollow side guide; Gland fixedly is housed in the through hole of hollow side guide; Machine glass is housed in gland, establishes location-plate at hollow side guide with above the solid side guide, the coal sample of dress bulk between hollow side guide and solid side guide; Load onto pressing plate on above the coal sample in the middle of the location-plate; Above sleeve, adorn baffle plate, the baffle plate upper end is installed on below the upper end cover boss, and its centre installs piston rod in the hole; Piston on the piston rod be contained in the upper end cover and baffle plate between; Piston rod passes the upper end cover center pit and is connected with outside, and at the corresponding pore that is provided with perforation with the center of piston rod of top board, pore passes to the coal sample in the sleeve. and on the upper surface of upper end cover, being threaded is provided with embedding formula pouring orifice.
The beneficial effect of the utility model is: the outstanding fluidic features analogue experiment installation of coal and gas adopts self-pressing type to exert pressure mode to the coal sample imposed load; Guaranteed sealing effectiveness and increased the pressure chamber size, reproduced the outstanding situation of coal and gas truly, avoided passive type manual unlocking aspis because speed is slow the influence of outstanding energy; Coal sample is exerted pressure through the voltage stabilizing servocontrol; Make pressurization keep constant, and can accurately regulate required pressure, and can real time record get off.
Description of drawings
Specify with embodiment below in conjunction with accompanying drawing.
Fig. 1 is the outstanding fluidic features analogue experiment installation structural drawing of coal and gas.
Fig. 2 is Fig. 1 middle sleeve structural drawing.
Fig. 3 is the A-A cut-open view of Fig. 2.
Among the figure, the 1-sleeve; The 1-1 through hole; 1-2-oil cylinder pilot hole; The 1-3-shoulder hole; The 2-upper end cover; 2-1-embedding formula pouring orifice; The 3-bottom end cover; The 4-piston; The 4-1-piston rod; The 4-2-pore; The 5-baffle plate; The 6-top board; 6-1-top board pore; The 7-lower platen; The last location-plate of 8-; Location-plate under the 9-; The solid side guide of 10-; The hollow side guide of 11-; The 12-gland; The 13-oil cylinder; The 13-1-oil cylinder piston; The 13-2-oil supply hole; The 14-organic glass; The 15-O-ring seal; The 16-coal sample.
Embodiment
Embodiment, with reference to accompanying drawing 1 ~ 3, the outside of the sleeve 1 of the outstanding fluidic features analogue experiment installation of coal and gas is the cylindrical of upper and lower band inclined-plane boss, interior ducted body for band square through-hole 1-1.On two planes of symmetry of the middle part of sleeve 1, be respectively equipped with shoulder hole 1-3, oil cylinder pilot hole 1-2 is provided with same oil cylinder pilot hole 1-2 on other two planes of symmetry.The bottom end cover 3 that is threaded below the sleeve 1, baffle plate 5 of top tight connection of sleeve 1, baffle plate 5 is below the sleeve 1 common boss that is contained in being threaded in the upper end cover 2.Bottom in sleeve 1 closely is connected with bottom end cover 3 is equipped with lower platen 7, adorns four following location-plates 9 between the both sides of lower platen 7 and the sleeve 1.Above following location-plate 9, the oil cylinder pilot hole 1-2 place of corresponding sleeve 1 adorns solid side guide 10; Setting-in oil cylinder 13 in solid side guide 10 outside upper cylinder pilot hole 1-2; Oil cylinder piston 13-1 is housed in the oil cylinder 13, is provided with oil supply hole 13-2 at the bottom centre place of oil cylinder 13.Hollow side guide 11 is housed in the shoulder hole 1-3 of the obverse sleeve 1 of oil cylinder pilot hole 1-2; In the center pit of hollow side guide 11, fixedly adorn a gland 12; In gland 12, adorn oblate organic glass 14 as aspis, the solid side guide 10 in sleeve 1 with load onto location-plate 8 above the hollow side guide 11.In last location-plate 8, load onto pressing plate 6, appearance 16 is coaling in the space between top board 6, lower platen 7, solid side guide 10 and hollow side guide 11.Piston rod 4-1 is equipped with in the center on top board 6, and the upper end of piston rod 4-1 is installed on the center of upper end cover 2, dress piston 4 on piston rod 4-1, corresponding pore 4-2 and the 6-1 of being provided with the center of top board 6 in the center of piston rod 4-1.On upper end cover 2, be threaded embedding formula pouring orifice 2-1 is housed; In upper end cover 2 and piston rod 4-1 and piston 4 junctions O-ring seal 15 is housed, between the junction of baffle plate 5 and piston rod 4-1 and sleeve 1, oil cylinder 13 and sleeve 1 junction, gland 12 and the organic glass 14 O-ring seal 15 is housed all.
The experimental procedure of the outstanding fluidic features analogue experiment installation of coal and gas is following:
1, moulding: after will pulverizing with comminutor from the projecting coal bed institute in the scene coal sample of getting; Through vibratory screening apparatus screening coal-forming particle size is four kinds of coal dusts that 40 orders, 60 orders, 80 orders, 100 order granule sizes do not wait; Under the situation of not adding any additives; To sieve good coal dust modulation evenly according to pre-set proportion scheme, and directly utilize pressure testing machine to pass through coal sample 16 imposed loads that 6 pairs of top boards are wanted moulding, according to the moulding on testing table of pre-set forming pressure;
2, the degassing: after coal sample 16 moulding, utilize this moment to apply oil pressure unit maintenance oil pressure pressure stability at predetermined degree of pressure, checking experiment container air-tightness; Outgas with vacuum pump; The degassing time decides according to moulding coal sample Final 16 degree, but the 24h that outgases at least, to guarantee good degasifying effect;
3, inflation: after the degassing; It is constant to keep institute's axle pressure of executing, and high-purity 99.9% methane steel cylinder of high pressure and piston 4 top air hole 4-1 are tightly connected, and regulates tensimeter; Make the inflation gas pressure be stabilized to predetermined value; The moulding coal sample 16 of air hole 6-1 in outstanding device by piston 4 is communicated with top board 6 filled gas, inflates 34h at least, and coal sample 16 gas are fully adsorbed;
4, completion is outstanding: coal sample 16 just can be given prominence to experiment after fully adsorbing, and utilization applies oil pressure unit and applies axial compression, confined pressure; In coal sample 16, feed high-purity 99.9% methane gas of high pressure as pore pressure, and stablize 20 ~ 30min, in order to keep the form of outburst hole; After taking place to give prominence to, should stop immediately continuing to apply oil pressure, in order to avoid oil is got in the outstanding equipment cavity; Before outstanding, should there be record to give prominence to whole process required time from being pressurized to, and the shooting personnel of the outstanding process of record; 20m is unmanned before before outstanding, should guaranteeing aspis, has prevented that the people is injured.
Claims (4)
1. coal and gas are given prominence to the fluidic features analogue experiment installation; Comprise bottom end cover (3), upper end cover (2), sleeve (1); The upper end that it is characterized in that sleeve (1) upper end cover (2) that is threaded; The lower end of sleeve (1) bottom end cover (3) that is threaded; Be connected with bottom end cover (3) at sleeve (1) inner bottom part lower platen (7) is housed, between the both sides of lower platen (7) and the sleeve (1) location-plate (9) is housed down, the oil cylinder pilot hole (1-1) on the following location-plate (9) of adjacent three sides, on the corresponding sleeve (1) locates to establish solid side guide (10); Solid side guide (10) is gone up setting-in oil cylinder (13); Shoulder hole (1-3) on the following location-plate (9) on right side, on the corresponding sleeve (1) is equipped with hollow side guide (11), establishes location-plate (8) at hollow side guide (11) with above the solid side guide (10), the coal sample (16) of dress bulk between hollow side guide (11) and solid side guide (10); In the middle of the last location-plate of coal sample (16) top, load onto pressing plate (6); The dress baffle plate (5) in the top of sleeve (1), baffle plate (5) upper end is installed on below upper end cover (2) boss, installs piston rod (4-1) in the center pit of baffle plate (5); Piston (4) on the piston rod (4-1) be contained in the upper end cover (2) and baffle plate (5) between; Piston rod (4-1) passes upper end cover (2) center pit and is connected with outside, and at the corresponding pore (4-2) that is provided with perforation with the center of piston rod (4-1) of top board (6), pore (4-2) passes to the coal sample (16) in the sleeve (1).
2. coal according to claim 1 and gas are given prominence to the fluidic features analogue experiment installation, it is characterized in that charge of oil cylinder piston (13-1) in the oil cylinder (13), and oil supply hole (13-2) is established in the center on oil cylinder (13) bottom surface.
3. coal according to claim 1 and gas are given prominence to the fluidic features analogue experiment installation, it is characterized in that in the through hole of hollow side guide (11) gland (12) being housed fixedly, and machine glass (14) is housed in gland (12).
4. coal according to claim 1 and gas are given prominence to the fluidic features analogue experiment installation, it is characterized in that on the upper surface of upper end cover (2), being threaded being provided with embedding formula pouring orifice (2-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220152419 CN202599928U (en) | 2012-04-12 | 2012-04-12 | Coal and gas outburst jet characteristic simulation experimental device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220152419 CN202599928U (en) | 2012-04-12 | 2012-04-12 | Coal and gas outburst jet characteristic simulation experimental device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202599928U true CN202599928U (en) | 2012-12-12 |
Family
ID=47317458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220152419 Expired - Lifetime CN202599928U (en) | 2012-04-12 | 2012-04-12 | Coal and gas outburst jet characteristic simulation experimental device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202599928U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102645518A (en) * | 2012-04-12 | 2012-08-22 | 辽宁工程技术大学 | Coal and gas outburst jet characteristic simulation experiment device |
| CN103412092A (en) * | 2013-08-26 | 2013-11-27 | 重庆大学 | Triaxial multiple coal and gas outburst test device |
| CN103454386A (en) * | 2013-09-18 | 2013-12-18 | 山东科技大学 | Coal and gas outburst simulation experiment device capable of considering dynamic influence and testing method thereof |
| CN103529179A (en) * | 2013-10-30 | 2014-01-22 | 中煤科工集团重庆研究院有限公司 | Coal and gas outburst simulation experiment method |
| CN103529178A (en) * | 2013-10-30 | 2014-01-22 | 中煤科工集团重庆研究院有限公司 | Outburst box body of coal and gas outburst simulation device |
-
2012
- 2012-04-12 CN CN 201220152419 patent/CN202599928U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102645518A (en) * | 2012-04-12 | 2012-08-22 | 辽宁工程技术大学 | Coal and gas outburst jet characteristic simulation experiment device |
| CN102645518B (en) * | 2012-04-12 | 2014-08-20 | 辽宁工程技术大学 | Coal and gas outburst jet characteristic simulation experiment device |
| CN103412092A (en) * | 2013-08-26 | 2013-11-27 | 重庆大学 | Triaxial multiple coal and gas outburst test device |
| CN103412092B (en) * | 2013-08-26 | 2015-01-14 | 重庆大学 | Triaxial multiple coal and gas outburst test device |
| CN103454386A (en) * | 2013-09-18 | 2013-12-18 | 山东科技大学 | Coal and gas outburst simulation experiment device capable of considering dynamic influence and testing method thereof |
| CN103454386B (en) * | 2013-09-18 | 2015-04-22 | 山东科技大学 | Coal and gas outburst simulation experiment device capable of considering dynamic influence and testing method thereof |
| CN103529179A (en) * | 2013-10-30 | 2014-01-22 | 中煤科工集团重庆研究院有限公司 | Coal and gas outburst simulation experiment method |
| CN103529178A (en) * | 2013-10-30 | 2014-01-22 | 中煤科工集团重庆研究院有限公司 | Outburst box body of coal and gas outburst simulation device |
| CN103529178B (en) * | 2013-10-30 | 2015-11-25 | 中煤科工集团重庆研究院有限公司 | Outburst box body of coal and gas outburst simulation device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202599928U (en) | Coal and gas outburst jet characteristic simulation experimental device | |
| CN102645518B (en) | Coal and gas outburst jet characteristic simulation experiment device | |
| CN202502025U (en) | Device for high pressure isothermal absorption experiment of coal | |
| CN102126563B (en) | Aircraft landing gear drop lifting force simulating device | |
| CN203246596U (en) | Firework powder charging device | |
| CN203343480U (en) | Rapid drilling device | |
| CN103336050A (en) | Coal-bed gas seepage experimental device under action of controllable high-power sound wave | |
| CN202590577U (en) | Spring pressing device | |
| CN102944660B (en) | A kind of big scale coal gas adsorption-desorption simulation experiment system | |
| CN203224426U (en) | MHC coupling seepage experiment device for circumferential crack rock test piece | |
| CN203248719U (en) | Porthole sealing element | |
| CN205057858U (en) | Holder suitable for many specifications rock core | |
| CN203376216U (en) | Gas sealing device for coal and rock burst test | |
| CN202330175U (en) | Reciprocating oil seal pressure-resistant detection device | |
| CN107575528B (en) | Accurate communication equipment vibration absorber | |
| CN204065275U (en) | A kind of employing oil-SF 6the 220kV transformer test device of sleeve pipe outlet | |
| CN203297726U (en) | Stop valve | |
| CN205317570U (en) | Loading device of simulation deep rock mass stress | |
| CN203046305U (en) | Balance cylinder structure for hydraulic machine | |
| CN202987644U (en) | Capsule dismantling equipment | |
| CN202155132U (en) | Vacuum adsorbent filling device for fixed bed | |
| CN202710341U (en) | Comprehensive testing stand for automobile air cleaner | |
| CN203906416U (en) | Pressure conversion device for converting air pressure into hydraulic pressure in whole process | |
| CN201510831U (en) | Waste gas absorber | |
| CN204546409U (en) | A kind of hydraulic turbine maintenance sealing maintenance tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121212 Effective date of abandoning: 20140820 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20121212 Effective date of abandoning: 20140820 |
|
| RGAV | Abandon patent right to avoid regrant |