CN102706528B - Gas flow characteristic testing device of fragmented coal rock mass - Google Patents
Gas flow characteristic testing device of fragmented coal rock mass Download PDFInfo
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- CN102706528B CN102706528B CN201210167941.5A CN201210167941A CN102706528B CN 102706528 B CN102706528 B CN 102706528B CN 201210167941 A CN201210167941 A CN 201210167941A CN 102706528 B CN102706528 B CN 102706528B
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Abstract
The invention discloses a gas flow characteristic testing device of fragmented coal rock mass. The device comprises a sealed cavity, a loading system, a gas supply and control system, a gas flow characteristic monitoring system and an acquisition computer, wherein one side of the sealed cavity is sealed with a high-strength flexible elastic matter, and keeps surface contact with the loading system; an air inlet and an air outlet are formed on the side surface of the sealed cavity; and the gas supply and control, the gas flow characteristic monitoring system and the acquisition computer are respectively connected with the air inlet and the air outlet. The testing device can realize the laboratory experimental study on the gas flow characteristic in the coal rock mass with different fragmentation degrees, and is a reliable, economic and simple experimental means.
Description
Technical field
The present invention relates to Gas Flow characteristic test technical field, particularly relate to a kind of fragmentary coal and rock Gas Flow characteristic test apparatus.
Background technology
The research of Gas Flow attribute testing according to on-site sampling and binding tests equipment carry out, apply the experimental study that instrument and equipment changes gas flow characteristics in coal and rock in the condition simulation underground coal mining processes such as external stress, distortion, environment residing for coal and rock sample.Fragmentary coal and rock be in underground coal mining process coal body by being formed after mining influence, be the common form of expression of underground stope scope coal and rock, it has abundant, loose, the uneven and irregular characteristic of hole fissured structure.Common Gas Flow attribute testing adopts post forming coal sample or not sampling by coal and rock in Affected areas by mining, the coal petrography sample obtained like this is relatively complete, but can not simulate the Gas Flow characteristic in the coal and rock after by mining influence completely really.
Summary of the invention
The present invention solve technical matters be simplify structure, improve reliable, easy to use.
In order to overcome the above problems, a kind of fragmentary coal and rock Gas Flow characteristic test apparatus, comprises seal chamber, loading system, gas supply and control system, Gas Flow characteristic monitoring system and collecting computer; The high strength elastic soft thing sealing of described seal chamber side, and contact with loading system face, seal chamber side is provided with air admission hole, venthole, and gas supply is connected with air admission hole, venthole respectively with control system, Gas Flow characteristic monitoring system and collecting computer.
Further, preferred as one, described high strength elastic soft thing is sealing rubber pad.
Further, preferred as one, described seal chamber comprises cavity and the high-strength silicone rubber pad of an opening, and cavity hatch face seals by high-strength silicone rubber pad.
Further, preferred as one, described sealing rubber pad is bolted gland bonnet after covering opening and ensures sealing.
Further, preferred as one, described loading system comprises load maintainer and loading cushion block and the dynamic changes process cushion block being positioned at cavity volume.
Further, preferred as one, described load maintainer is numerical control hydraulic charger.
Further, preferred as one, also comprise and load auxiliary body, seal chamber has a flanging to form sealing auxiliary block, described high-strength silicone rubber pad, gland bonnet are connected with loading auxiliary body by bolt, and an opening is stamped in sealing, load auxiliary block through gland bonnet opening.
Further, preferred as one, in cavity, combination metal fine-structure mesh is all equipped with at air intake opening place, venthole place.
Further, preferred as one, described Gas Flow characteristic monitoring system is the dynamic gas flow meter of numerical control.
Further, preferred as one, have temperature sensor in described cavity side hole arranged.
By loading auxiliary body and load maintainer, fragmentary coal and rock Gas Flow characteristic test apparatus of the present invention, achieves that system loads voluntarily, unloading system; The fragmentary degree of difference of coal and rock is formed by applying different stress simulation to coal body in cavity; With gas inlet place number layer fine metal mesh assembly, methane gas is made to achieve face ventilatory function; At inside cavity set temperature sensor, the temperature variations obtained in fragmentary coal and rock in gas flow process can be monitored; By numerical value flowmeter and the data acquisition software worked out voluntarily, achieve the mobilism monitoring of Gas Flow characteristic; This test unit can realize the laboratory examination research of gas flow characteristics in different fragmentary degree coal and rock, is a kind of reliable, economic, simple laboratory facilities.
Accompanying drawing explanation
When considered in conjunction with the accompanying drawings, by referring to detailed description below, more completely can understand the present invention and easily learn wherein many adjoint advantages, but accompanying drawing described herein is used to provide a further understanding of the present invention, form a part of the present invention, schematic description and description of the present invention, for explaining the present invention, does not form inappropriate limitation of the present invention, wherein:
Fig. 1 is the front view realizing fragmentary coal and rock Gas Flow characteristic test apparatus described in the embodiment of patent of the present invention;
Fig. 2 is the vertical view realizing fragmentary coal and rock Gas Flow characteristic test apparatus described in the embodiment of patent of the present invention.
In figure:
1, auxiliary body is loaded; 2, load maintainer; 3, cushion block is loaded; 4, coupling bolt; 5, sealing rubber pad; 6, cavity; 7, metal fine-structure mesh is combined; 8, venthole; 9, numerical control Gas-Flow gauge; 10, auxiliary block is sealed; 11, dynamic changes process cushion block; 12, air admission hole; 13, gland bonnet; 14, temperature sensor is hole arranged; 15, system is loaded.
Embodiment
Referring to Fig. 1-2, embodiments of the invention are described.
For enabling above-mentioned purpose, feature and advantage become apparent more, and below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
A kind of fragmentary coal and rock Gas Flow characteristic test apparatus, comprises seal chamber, loading system 15, gas supply and control system, Gas Flow characteristic monitoring system and collecting computer; Described seal chamber side high strength elastic soft thing 5 seals, and contact with loading system 15, seal chamber side is provided with air admission hole 12, venthole 8, and gas supply is connected with air admission hole 12, venthole 8 respectively with control system, Gas Flow characteristic monitoring system and collecting computer.
As shown in Figure 1, 2, the fragmentary coal and rock Gas Flow characteristic test apparatus of patent of the present invention, comprises and loads auxiliary body 1, load maintainer 2, loading cushion block 3, coupling bolt connector 4, sealing rubber pad 5, cavity 6, combination metal fine-structure mesh 7, venthole 8, numerical control Gas-Flow gauge 9, sealing auxiliary block 10, dynamic changes process cushion block 11, air admission hole 12, gland bonnet 13, temperature sensor hole arranged 14; Described loading auxiliary body 1 adopts coupling bolt 4 to be connected with cavity 6 with gland bonnet 13, sealing rubber pad 5; Load maintainer 2 and loading cushion block 3 center alignment contact free, load cushion block 3 and go deep into cavity 6 by the perforate on gland bonnet 13, and contact with sealing rubber pad 5 and dynamic changes process cushion block 11, by raise load maintainer 2 and make it with load auxiliary body 1, load cushion block 3 close contact after, form loaded load gradually; Methane gas enters cavity by the list-directed gas gas cylinder of two gas through air admission hole 12, combination metal fine-structure mesh 7, cavity 6 is entered with plane ventilating mode to make gas, to be flowed out through numerical control Gas-Flow gauge 9 by venthole 8 after flowing through fragmentary coal and rock, gas flowing velocity parameter in the fragmentary coal and rock of Gas-Flow gauge dynamic monitoring, and be connected with data acquisition software, computer, automatic data collection; Temperature monitoring sensor is arranged in cavity 6 by temperature sensor hole arranged 14, and is connected with data acquisition software, computer.
During fragmentary coal and rock Gas Flow characteristic test apparatus specific works of the present invention, fragmentary coal and rock to be placed in cavity 6 and assemble, good seal system, and temperature sensors arranged by the temperature sensor hole arranged 14 of fragmentary coal and rock middle part in cavity 6; The factor of porosity of the fragmentary coal and rock obtained by prior on-the-spot test, loaded by the fragmentary coal petrography sample of load maintainer 2 pairs of collection in worksite, the coal and rock consistent with scene fragmentary coal and rock factor of porosity is formed in cavity 6, then continue to pass into gas 24 hours by air admission hole 12 by the test gas pressure of setting, after gas fully adsorbs, open venthole 8 and by the Gas Flow characteristic in the fragmentary coal and rock of Gas-Flow gauge 9 dynamic monitoring, monitor the temperature variation of this process simultaneously; The load that adjustable load maintainer 2 applies fragmentary coal and rock and change the constitution pores and crack of coal and rock in cavity 6, realizes the temperature changing regularity experimental study of fragmentary coal and rock in the dynamic monitoring research of gas flow characteristics in different fragmentary degree coal and rock and loading procedure, Gas Flow process.
As mentioned above, embodiments of the invention are explained, but as long as do not depart from inventive point of the present invention in fact and effect can have a lot of distortion, this will be readily apparent to persons skilled in the art.Therefore, such variation is also all included within protection scope of the present invention.
Claims (1)
1. a fragmentary coal and rock Gas Flow characteristic test apparatus, is characterized in that, comprises seal chamber, loading system, gas supply and control system, Gas Flow characteristic monitoring system and collecting computer; Seal chamber side high strength elastic soft thing seals, and contact with loading system face, seal chamber side is provided with air admission hole, venthole, and gas supply is connected with air admission hole, venthole respectively with control system, Gas Flow characteristic monitoring system and collecting computer; High strength elastic soft thing is high-strength silicone rubber pad; Seal chamber comprises cavity and a high-strength silicone rubber pad of an opening, and cavity hatch face seals by high-strength silicone rubber pad; High-strength silicone rubber pad is bolted gland bonnet after covering opening and ensures sealing; Loading system comprises load maintainer and loading cushion block and the dynamic changes process cushion block being positioned at cavity volume; Load maintainer is numerical control hydraulic charger; Also comprise and load auxiliary body, seal chamber has a flanging to form sealing auxiliary block, and high-strength silicone rubber pad, gland bonnet are connected with loading auxiliary body by bolt, and an opening is stamped in sealing, loads auxiliary block through gland bonnet opening; In cavity, combination metal fine-structure mesh is all equipped with at air intake opening, venthole place; Gas Flow characteristic monitoring system is the dynamic gas flow meter of numerical control; Temperature sensor is had hole arranged in cavity side.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210167941.5A CN102706528B (en) | 2012-05-25 | 2012-05-25 | Gas flow characteristic testing device of fragmented coal rock mass |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210167941.5A CN102706528B (en) | 2012-05-25 | 2012-05-25 | Gas flow characteristic testing device of fragmented coal rock mass |
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| CN102706528A CN102706528A (en) | 2012-10-03 |
| CN102706528B true CN102706528B (en) | 2015-04-08 |
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| CN201210167941.5A Expired - Fee Related CN102706528B (en) | 2012-05-25 | 2012-05-25 | Gas flow characteristic testing device of fragmented coal rock mass |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104111116A (en) * | 2013-04-22 | 2014-10-22 | 西安科技大学 | Coal temperature measuring device and coal temperature measuring method |
| CN108195741A (en) * | 2018-01-19 | 2018-06-22 | 中国矿业大学(北京) | It is a kind of based in annular seal space plus constant pressure gas experimental rig and test method |
| CN108918337A (en) * | 2018-09-18 | 2018-11-30 | 中国矿业大学(北京) | It is a kind of based in seal chamber continuously plus release gas experimental rig and test method |
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| CN201170769Y (en) * | 2007-12-28 | 2008-12-24 | 重庆大学 | Ingredient rheology infiltration flow tester |
| CN201196634Y (en) * | 2007-10-30 | 2009-02-18 | 河南理工大学 | Coal rock, gas coupling osmosis bidirectional loading tester |
| CN101634621A (en) * | 2009-08-12 | 2010-01-27 | 重庆大学 | Fluid-solid-heat coupling triaxial servo percolation device for gas-contained coal |
| CN102252957A (en) * | 2011-04-19 | 2011-11-23 | 河南理工大学 | Experimental measurement device and method of solid-liquid conversion parameters of decompressed coal |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN100535630C (en) * | 2007-07-10 | 2009-09-02 | 浙江大学 | Armoured concrete test teaching integrated loading device |
| CN201163259Y (en) * | 2007-07-18 | 2008-12-10 | 北京新桥技术发展有限公司 | Multifunctional roadbed pavement strength tester |
| CN201145661Y (en) * | 2008-01-16 | 2008-11-05 | 中国矿业大学 | Crushing ingredient gas lysimeter |
| CN201170783Y (en) * | 2008-01-22 | 2008-12-24 | 重庆大学 | Simulation pressure-testing case for rock formation stress |
| CN202110106U (en) * | 2011-05-14 | 2012-01-11 | 长沙亚星数控技术有限公司 | Electric servo rock triaxial test system |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201196634Y (en) * | 2007-10-30 | 2009-02-18 | 河南理工大学 | Coal rock, gas coupling osmosis bidirectional loading tester |
| CN201170769Y (en) * | 2007-12-28 | 2008-12-24 | 重庆大学 | Ingredient rheology infiltration flow tester |
| CN101634621A (en) * | 2009-08-12 | 2010-01-27 | 重庆大学 | Fluid-solid-heat coupling triaxial servo percolation device for gas-contained coal |
| CN102252957A (en) * | 2011-04-19 | 2011-11-23 | 河南理工大学 | Experimental measurement device and method of solid-liquid conversion parameters of decompressed coal |
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