CN203858240U - Power system for coal and gas outburst power effect simulation experiment - Google Patents
Power system for coal and gas outburst power effect simulation experiment Download PDFInfo
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- CN203858240U CN203858240U CN201420312626.1U CN201420312626U CN203858240U CN 203858240 U CN203858240 U CN 203858240U CN 201420312626 U CN201420312626 U CN 201420312626U CN 203858240 U CN203858240 U CN 203858240U
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- coal
- power system
- experiment
- pressure vessel
- gas outburst
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Abstract
The utility model discloses a power system for a coal and gas outburst power effect simulation experiment, which comprises a pressure container for being filled with simulation experiment material, and the pressure container is fixed on the ground and is provided with a container opening; a container inflation hole and a coal inlet capable of being opened and closed are formed in the pressure container. The power system further comprises an outlet device connected to the container opening and an experiment roadway, an explosion relief mechanism used for sealing the container opening and opening the container opening under exerted pressure is arranged in the outlet device; coal particles are added into the pressure container from the coal inlet, poisonous gas is inflated from the container inflation hole; when the pressure reaches the blast point of the explosion relief mechanism, the container opening is instantly opened, at this moment, the pressure container is communicated with the experiment roadway, the coal is broken and thrown away, and the power effect simulation experiment is begun. The power system for the coal and gas outburst power effect simulation experiment is simple in structure, and facilitates more clearly knowing the generation and development law of the outburst hazard generation mechanism of the coal and the gas, as a result, the outburst hazards of the coal and the gas are effectively controlled.
Description
Technical field
The utility model relates to a kind of mine disaster experimental system for simulating, particularly a kind of power system for coal and the simulated experiment of Gas Outburst dynamic effect.
Background technology
Coal and Gas Outburst are one of disasters the most serious in coal in China exploitation.The dynamic effect producing during outstanding generation can be destroyed production system, causes casualties, and easily causes the major accidents such as coal dust and gas explosion.Therefore, reduce to greatest extent the destruction of disaster, just must study the calamity mechanism that causes of coal and Gas Outburst, explore effective disaster control method and measure.The overall process of coal and Gas Outburst can be regarded as two different phases, one of them stage is the shattering process of outstanding coal body, its main manifestations feature is that coal body produces destruction and peels off with rib under the acting in conjunction of terrestrial stress, gas pressure and digging activity, the continuous desorb of adsorption gas in coal body, free gas discharges, at the inner coal-gas two-phase flow that forms of outburst hole; Another stage is the process of dishing out after coal body fragmentation, it is the dynamic effect stage, also coal-gas two-phase flow ejection the outburst hole forming on last stage the process that sorting is piled up in tunnel, this stage is not in the situation that considering roof caving, terrestrial stress plays a secondary role, and the promotion of methane gas plays dominating role.
Due to the restriction of complicacy and research method and the means of coal and Gas Outburst, both at home and abroad to after coal and Gas Outburst to cause calamity theoretical research less.Outstanding dynamic disaster laboratory simulation and on-the-spot actual observation all exist the difficulty that cannot overcome.Although carried out at present a large amount of coals and Gas Outburst experiment both at home and abroad, and many breakthrough progress have been obtained, but achievement in research concentrates on adsorption-desorption rule mostly, coal body failure law, terrestrial stress effect, the aspects such as moulded coal parameter, a lot of problems are as fluid motion parameter and flow state in coal and Gas Outburst, shock wave forms mechanism and the impact damage to main ventilation equipment, execution, the research that causes the aspects such as calamity condition and early warning protection is fewer, its main cause has: first, due to solid-gas phase the complex nature of the problem, at present still do not have very ripe theoretical result to explain the characteristics of motion of two-phase flow, the second, the outstanding model in existing coal and Gas Outburst laboratory is difficult to reach the requirement of on-the-spot physical condition, and dynamic effect experiment effect is not obvious, the 3rd, the relevant description of outstanding on-the-spot generation power destruction and impact is detailed not, and due to mine safety rules and safety equipment restriction, outstanding photo site and video data seldom, are unfavorable for the research of problem.These reasons cause outstanding cause calamity research aspect and relatively lagging behind above, and people cannot fundamentally set forth outstanding brought harm, and the conclusion that more directly utility theory analysis draws is carried out Guiding Practice.
Therefore, be necessary to develop a kind of experimental provision that is specifically designed to coal and the simulated experiment of Gas Outburst dynamic effect, that with the experiment of chamber by experiment, understands coal and Gas Outburst causes calamity and controlled condition, by dynamic effect experimental study, be more clearly familiar with coal and Gas Outburst and cause calamity mechanism and generation, the rule of development, effectively control coal and Gas Outburst disaster, and in this device, the most key part is its power system.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of power system for coal and the simulated experiment of Gas Outburst dynamic effect, that with the experiment of chamber by experiment, understands coal and Gas Outburst causes calamity and controlled condition, by dynamic effect experimental study, be more clearly familiar with coal and Gas Outburst and cause calamity mechanism and generation, the rule of development, effectively control coal and Gas Outburst disaster.
Power system for coal and the simulated experiment of Gas Outburst dynamic effect of the present utility model, comprise for filling the pressure vessel of simulated experiment material, described pressure vessel is fixed on ground and has vessel port, described pressure vessel is provided with container air-filled pore and coal feed point to be opened/closed, also comprise the outlet device that connects described vessel port and experiment tunnel, in described outlet device, be provided with the venting of dust explosion mechanism that opens described vessel port when sealing with pressurized.
Further, described venting of dust explosion mechanism comprises at least one rupture disk.
Further, the quantity of described rupture disk is two, and the position of described outlet device between two described rupture disks forms insulated chamber and be provided with the insulated chamber air-filled pore that is communicated with described insulated chamber.
Further, described outlet device comprises that thickening is taken over and reducing is taken over, one end that described thickening is taken over is connected with described vessel port, the other end is connected by the first flange with the extra heavy pipe portion that described reducing is taken over, the thin tube part that described reducing is taken over is connected by the second flange with described experiment tunnel, two described rupture disks are clamped in respectively between the ring flange of described the first flange and the ring flange of the second flange, and described insulated chamber air-filled pore is arranged on described reducing and takes over.
Further, described pressure vessel is the horizontal pressure vessel that bottom is provided with saddle support, also comprise the base that is fixed on ground and is fixedly connected with described saddle support by foot bolt, described base is that the relative distance between layer structure and each layer is adjustable, makes the relative height between described pressure vessel and ground adjustable.
Further, described base comprises upper mounting plate and lower platform, is provided with for regulating the adjusting screw(rod) of relative distance between described upper mounting plate and lower platform.
Further, described pressure vessel, thickening adapter and reducing are taken over and are equipped with the gauge hole for sensor installation.
The beneficial effects of the utility model: the power system for coal and the simulated experiment of Gas Outburst dynamic effect of the present utility model, from coal feed point to pressure vessel, add coal body particle, from container air-filled pore, be filled with methane gas, when pressure reaches the blow-up point of venting of dust explosion mechanism, vessel port moment opens, now pressure vessel is communicated with experiment tunnel, coal body fragmentation is also dished out, and dynamic effect simulated experiment is started; The utility model is simple in structure, easy to use, is conducive to more clearly be familiar with coal and Gas Outburst and causes calamity mechanism and generation, the rule of development, effectively controls coal and Gas Outburst disaster.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further described:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is principle of dynamics sketch of the present utility model.
Embodiment
Fig. 1 is structural representation of the present utility model, as shown in the figure: the power system for coal and the simulated experiment of Gas Outburst dynamic effect of the present embodiment, comprise for filling the pressure vessel 1 of simulated experiment material, described pressure vessel 1 is fixed on ground and has vessel port 11, described pressure vessel 1 is provided with container air-filled pore 12 and coal feed point to be opened/closed 13, also comprise the outlet device that connects described vessel port 11 and experiment tunnel 9, in described outlet device, be provided with the venting of dust explosion mechanism that opens described vessel port 11 when sealing with pressurized; Pressure vessel 1 is for carrying the Sealing Arrangement of internal high pressure; Simulated experiment material comprises media particle and methane gas, wherein container air-filled pore 12 can be connected with gas cylinder, for being filled with methane gas, coal feed point 13 is located at pressure vessel 1 top, by valve, is opened and closed; Experiment tunnel 9 is the pipeline of simulation mine laneway network; Vessel port 11 is opened in pressure vessel 1 bottom, is communicated with, and is sealed by venting of dust explosion mechanism, to realize the integral sealing of pressure vessel 1 by the outlet device being mainly comprised of pipeline with experiment tunnel 9; Venting of dust explosion mechanism can explosion, relieving pressure under the temperature and pressure of regulation; From coal feed point 13, to pressure vessel 1, add coal body particle, from container air-filled pore 12, be filled with methane gas, by inflating pressure mode, complete the gas absorption process of coal body particle, when pressure reaches the blow-up point of venting of dust explosion mechanism, 11 moments of vessel port open, now pressure vessel 1 is communicated with experiment tunnel 9, coal body fragmentation is also dished out, and dynamic effect simulated experiment is started.
In the present embodiment, described venting of dust explosion mechanism comprises at least one rupture disk 2; Venting of dust explosion mechanism can adopt the rupture disk 2 of existing any structure, is not repeated herein its structure; Adopt rupture disk 2 have simple in structure, installation and maintenance convenient, the advantage such as cheap, and it is corrosion-resistant, sealing property is reliable, guarantees that pressure vessel 1 tests the sealing property before starting in dynamic effect; The quantity of rupture disk 2 is decided according to the actual requirements; When adopting a rupture disk 2, rupture disk 2 can be arranged on to any position of outlet device; As need the gas absorption process of coal body particle, and first in pressure vessel 1, be filled with the gas that is less than and approaches rupture disk 2 burst pressures, now rupture disk can not break; When experiment need be opened vessel port 11, then to the interior inflation of pressure vessel 1, make the interior gaseous tension of pressure vessel 1 surpass rupture disk 2 burst pressures, rupture disk 2 fragmentations, thereby the moment of realizing vessel port 11 open.
In the present embodiment, the quantity of described rupture disk 2 is two, and the position that described outlet device is positioned between two described rupture disks 2 (comprising near the rupture disk A21 in experiment tunnel 9 and the rupture disk B22 of close pressure vessel 1) forms insulated chamber 3 and is provided with the insulated chamber air-filled pore 31 that is communicated with described insulated chamber 3, insulated chamber 3 is two formed confined spaces of rupture disk 2 in outlet device, and insulated chamber air-filled pore 31 is all consistent with container air-filled pore 12 structures and function, use two rupture disks 2 to use a rupture disk 2 to there is more outstanding technique effect than only simultaneously, while using a rupture disk 2, the breakage of rupture disk 2 need to be to whole pressure vessel 1 inflation, and inflation object volume is large, outlet opening time is long, and the broken time of rupture disk 2 is wayward, and while using two rupture disks 2, can change the pressure that rupture disk 2 bears by insulated chamber 3 being filled, exit, and export opening time short, be easy to accurately control vessel port 1 opening time, specifically, as shown in Figure 2, according to requirement of experiment, as need the gas absorption process of coal body particle, first in pressure vessel 1, be filled with the gas that is less than and approaches rupture disk B22 burst pressure, now rupture disk B22 can not break, after adsorption process completes, before experiment starts, first insulated chamber air-filled pore 31 and container air-filled pore 12 are replaced to intermittently inflation, make the experimental pressure in pressure vessel 1 reach default experimental pressure P0, and guarantee rupture disk A21, rupture disk B22 all can not break, now pressure vessel gaseous tension P0 > insulated chamber gaseous tension P1 > experiment tunnel gaseous tension Pm, and the burst pressure > P0-P1 of P0-Pm > rupture disk B, and the burst pressure > P1-Pm of rupture disk A, when experiment starts, inflation increase or venting reduce the gaseous tension in insulated chamber 3, and rupture disk B22 and rupture disk A21 are successively broken, thereby realize the moment exporting, open, while adopting plenum mode to open outlet, rupture disk A21 is first broken, and adopting venting pressure reducing mode to open while exporting, rupture disk B22 is first broken.
In the present embodiment, described outlet device comprises thickening adapter 4 and reducing adapter 5, one end of described thickening adapter 4 is connected with described vessel port 11, the other end is connected by the first flange 61 with the extra heavy pipe portion of described reducing adapter 5, the thin tube part of described reducing adapter 5 is connected by the second flange 62 with described experiment tunnel 9, two described rupture disks 2 are clamped in respectively between the ring flange of described the first flange 61 and the ring flange of the second flange 62, and described insulated chamber air-filled pore 31 is arranged on described reducing and takes on 5; Strong impacting with high pressure while opening for adapting to vessel port 11, vessel port 11 connects the thickening that specific pressure container 1 outer wall thickness is larger and takes over 4, and certain thickening takes over 4 also can be one-body molded with pressure vessel 1, to improve stable connection degree; Reducing takes over 5 can be connected with the experiment tunnel 9 of different size thickening adapter 4, increases the controllable variable of simulated experiment; The diameter of the thickening adapter 4 of the present embodiment is that 0.3m, length are 0.1m, and the extra heavy pipe portion diameter of reducing adapter 5 is 0.3m, and the diameter of thin tube part can be adjusted into according to experiment demand the different sizes such as 0.3m, 0.2m, 0.1m; The first flange 61, the second flange 62 are all identical with existing flange arrangement, can be at the default ring flange of corresponding connecting portion of thickening adapter 4, reducing adapter 5 and experiment tunnel 9 imports, by bolt, be connected and sealed again, 2 corresponding being clamped between ring flange of rupture disk.
In the present embodiment, described pressure vessel 1 is provided with the horizontal pressure vessel of saddle support 14 for bottom, also comprise the base that is fixed on ground and is fixedly connected with described saddle support 14 by foot bolt, described base is that the relative distance between layer structure and each layer is adjustable, makes the relative height between described pressure vessel 1 and ground adjustable; Pressure vessel 1 is fixed on ground by base, to prevent that pressure vessel 1 from moving under Percussion counter-force effect; Base consists of at least two-layer relatively independent steel plate layer, and wherein the steel plate layer of the bottom is fixed on ground, between each steel plate layer, can contact connection, also can not contact connection; The relative distance of steel plate interlayer is adjustable, is conducive to keep the levelness of pressure vessel 1, and can adjust the relative height of pressure vessel 1, is convenient to being connected of pressure vessel 1 and outlet device.
In the present embodiment, described base comprises upper mounting plate 71 and lower platform 72, is provided with for regulating the adjusting screw(rod) 73 of relative distance between described upper mounting plate 71 and lower platform 72; Adjusting screw(rod) 73 penetrates lower platform 72 through upper mounting plate 71 part, and the screw thread of two sections of contrary rotation directions can be set on shaft, realizes the adjusting of two podium levels during spiral.
In the present embodiment, described pressure vessel 1, thickening adapter 4 and reducing are taken on 5 and are equipped with the gauge hole 8 for sensor installation; Gauge hole 8 is for sensors such as setting pressure sensor, temperature sensors, to monitor and to obtain the physicochemical data in experimentation; As shown in Figure 1, the axis of gauge hole 8 is all perpendicular with the axis of establishing pressure vessel 1, thickening adapter 4 and reducing adapter 5, is convenient to offer and can improve the accuracy of obtaining data.
Finally explanation is, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (7)
1. the power system for coal and the simulated experiment of Gas Outburst dynamic effect, it is characterized in that: comprise for filling the pressure vessel of simulated experiment material, described pressure vessel is fixed on ground and has vessel port, described pressure vessel is provided with container air-filled pore and coal feed point to be opened/closed, also comprise the outlet device that connects described vessel port and experiment tunnel, in described outlet device, be provided with the venting of dust explosion mechanism that opens described vessel port when sealing with pressurized.
2. the power system for coal and the simulated experiment of Gas Outburst dynamic effect according to claim 1, is characterized in that: described venting of dust explosion mechanism comprises at least one rupture disk.
3. the power system for coal and the simulated experiment of Gas Outburst dynamic effect according to claim 2, it is characterized in that: the quantity of described rupture disk is two, the position of described outlet device between two described rupture disks forms insulated chamber and is provided with the insulated chamber air-filled pore that is communicated with described insulated chamber.
4. the power system for coal and the simulated experiment of Gas Outburst dynamic effect according to claim 3, it is characterized in that: described outlet device comprises that thickening is taken over and reducing is taken over, one end that described thickening is taken over is connected with described vessel port, the other end is connected by the first flange with the extra heavy pipe portion that described reducing is taken over, the thin tube part that described reducing is taken over is connected by the second flange with described experiment tunnel, two described rupture disks are clamped in respectively between the ring flange of described the first flange and the ring flange of the second flange, described insulated chamber air-filled pore is arranged on described reducing and takes over.
5. the power system for coal and the simulated experiment of Gas Outburst dynamic effect according to claim 4, it is characterized in that: described pressure vessel is the horizontal pressure vessel that bottom is provided with saddle support, also comprise the base that is fixed on ground and is fixedly connected with described saddle support by foot bolt, described base is that the relative distance between layer structure and each layer is adjustable, makes the relative height between described pressure vessel and ground adjustable.
6. the power system for coal and the simulated experiment of Gas Outburst dynamic effect according to claim 5, is characterized in that: described base comprises upper mounting plate and lower platform, is provided with for regulating the adjusting screw(rod) of relative distance between described upper mounting plate and lower platform.
7. according to claim 6 in the power system of coal and the simulated experiment of Gas Outburst dynamic effect, it is characterized in that: described pressure vessel, thickening adapter and reducing are taken over and be equipped with the gauge hole for sensor installation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420312626.1U CN203858240U (en) | 2014-06-12 | 2014-06-12 | Power system for coal and gas outburst power effect simulation experiment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420312626.1U CN203858240U (en) | 2014-06-12 | 2014-06-12 | Power system for coal and gas outburst power effect simulation experiment |
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| Publication Number | Publication Date |
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| CN203858240U true CN203858240U (en) | 2014-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420312626.1U Withdrawn - After Issue CN203858240U (en) | 2014-06-12 | 2014-06-12 | Power system for coal and gas outburst power effect simulation experiment |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103995093A (en) * | 2014-06-12 | 2014-08-20 | 中煤科工集团重庆研究院有限公司 | Dynamic system for coal and gas outburst dynamic effect simulation experiment |
| CN105891440A (en) * | 2016-04-11 | 2016-08-24 | 辽宁工程技术大学 | Coal and gas outburst testing device with supplemental gas source and method |
| CN110308246A (en) * | 2019-07-02 | 2019-10-08 | 中国矿业大学 | The projecting coal bed water filling extinction technology of one kind and extinction validity check method |
-
2014
- 2014-06-12 CN CN201420312626.1U patent/CN203858240U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103995093A (en) * | 2014-06-12 | 2014-08-20 | 中煤科工集团重庆研究院有限公司 | Dynamic system for coal and gas outburst dynamic effect simulation experiment |
| CN103995093B (en) * | 2014-06-12 | 2016-02-24 | 中煤科工集团重庆研究院有限公司 | For the power system of coal and gas prominent dynamic effect simulated experiment |
| CN105891440A (en) * | 2016-04-11 | 2016-08-24 | 辽宁工程技术大学 | Coal and gas outburst testing device with supplemental gas source and method |
| CN105891440B (en) * | 2016-04-11 | 2017-12-01 | 辽宁工程技术大学 | A kind of coal and gas prominent experimental rig and method for having supply source of the gas |
| CN110308246A (en) * | 2019-07-02 | 2019-10-08 | 中国矿业大学 | The projecting coal bed water filling extinction technology of one kind and extinction validity check method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141001 Effective date of abandoning: 20160224 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |