CN203643422U - Explosion venting device of coal and gas outburst simulation device - Google Patents
Explosion venting device of coal and gas outburst simulation device Download PDFInfo
- Publication number
- CN203643422U CN203643422U CN201320681214.0U CN201320681214U CN203643422U CN 203643422 U CN203643422 U CN 203643422U CN 201320681214 U CN201320681214 U CN 201320681214U CN 203643422 U CN203643422 U CN 203643422U
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- Prior art keywords
- venting
- dust explosion
- coal
- film
- explosion film
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- 238000004880 explosion Methods 0.000 title claims abstract description 96
- 238000013022 venting Methods 0.000 title claims abstract description 85
- 239000003245 coal Substances 0.000 title claims abstract description 31
- 238000004088 simulation Methods 0.000 title abstract description 6
- 239000000428 dust Substances 0.000 claims description 68
- 239000011148 porous material Substances 0.000 claims description 10
- 230000000977 initiatory effect Effects 0.000 claims description 3
- 238000013461 design Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 26
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 10
- 238000000034 method Methods 0.000 description 9
- 238000012360 testing method Methods 0.000 description 4
- 238000005065 mining Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000005226 mechanical processes and functions Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model discloses an explosion venting device of a coal and gas outburst simulation device. The explosion venting device comprises an outburst hole (1a) formed in the side wall of an outburst box (1), and is characterized in that a sleeve (2) is arranged in the outburst hole (1a); a first explosion venting film (3) and a second explosion venting film (5) are arranged on two openings of the sleeve (2), respectively; an air filling hole (6) is formed in the wall of the sleeve (2); air hole channels (1b), which are communicated with the air filling hole (6), are formed in the side wall of the outburst box (1). The explosion venting device of the coal and gas outburst simulation device is reasonable in design, simple in structure and easy to implement; sudden explosion venting can be well realized in an instant.
Description
Technical field
The utility model relates to a kind of explosion venting device, particularly the explosion venting device of a kind of coal and Gas Outburst analogue means.
Background technology
The prominent mountain of coal and gas is occur in the down-hole mining active procedure of colliery a kind of with the sound and the fierce coal of power energy effect and the disastrous dynamic phenomenon of gas, it can be in a short period of time, near coal and rock from digging space spray a large amount of coal, gas or rock, in coal body, form the hole of certain special shape suddenly.
China 95% coal mining be underground work, ocurrence of coal seam complex geologic conditions, along with the annual approximately mining depth of 10～20m is extended to deep, coal and Gas Outburst disaster are on the rise.From year Dec in July, 2000 to 2012, there is 411 of coal and Gas Outburst fatal accidents in China altogether, and dead 2506 people have become the key factor of the safety in production of restriction China's coal-mine and coal industry sound development.
From occurring in the world the first coal and gas burst accident on the books, existing 20 countries in the whole world have all dropped into a large amount of human and material resources, carry out the research work of coal and Gas Outburst, but the current mechanism about coal and Gas Outburst is still in the hypothesis stage, studies difficulty larger.At present, the method for coal and gas outburst mechanism mainly contains prominent feature statistical study, site test and laboratory simulation test.A kind of dynamic phenomenon of complexity owing to giving prominence to, the emergentness of its generation and the dangerous outstanding generation of directly observation and the very difficulty of development of making, therefore laboratory simulation test is the most effectual way of current Study on Coal and gas outburst mechanism.By building large moulded coal and Gas Outburst equivalent material simulating device is carried out laboratory simulation test, can further investigate coal and Gas Outburst mechanical function mechanism, provide important means for reducing coal and gas burst accident.On many explosion experimental provisions, all there is no at present a kind of device that can realize well in moment unexpected venting of dust explosion.Therefore, cannot extract explosion thing in the technical data of venting of dust explosion moment, there is no so far good solution.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of coal and Gas Outburst analogue means venting of dust explosion mechanism, and moment is well realized unexpected venting of dust explosion more fortunately.
The technical solution of the utility model is as follows: the explosion venting device of a kind of coal and Gas Outburst analogue means, comprise the outstanding hole (1a) being arranged on outstanding casing (1) sidewall, it is characterized in that: sleeve (2) is housed in described outstanding hole (1a), on two nozzles of described sleeve (2), be respectively equipped with the first venting of dust explosion film (3) and the second venting of dust explosion film (5), the barrel of described sleeve (2) is provided with air-filled pore (6), and this sidewall of described outstanding casing (1) is provided with the air vent channel (1b) communicating with this air-filled pore (6).
As preferably: the middle part in described sleeve (2) is also provided with the 3rd venting of dust explosion film (4), the pressure that is equipped with inflatable chamber on the barrel of the sleeve (2) between the barrel of the sleeve (2) between described the first venting of dust explosion film (3) and the 3rd venting of dust explosion film (4) and the second venting of dust explosion film (5) and the 3rd venting of dust explosion film (4) is slightly less than the pressure in outstanding casing, makes like this first venting of dust explosion film be not easy explosion in the process of pressurising.Simultaneously, in secondary pressure chamber, be filled with methane gas, make the pressure in secondary pressure chamber be slightly less than the pressure in first class pressure chamber, make the 3rd venting of dust explosion film in Plenum Process, be difficult for explosion, in the time that the pressure in outstanding casing reaches outstanding pressure, portion gas in first class pressure chamber is taken away, made the first venting of dust explosion film explosion, simultaneously moment the 3rd and the second venting of dust explosion film explosion.Realize unexpected venting of dust explosion, extract the technical data of explosion thing in venting of dust explosion moment.Hole (6), this sidewall of described outstanding casing (1) is provided with the air vent channel (1b) communicating with air-filled pore (6).Between described the first venting of dust explosion film and the 3rd venting of dust explosion film, form first class pressure chamber, between described the 3rd venting of dust explosion film and the second venting of dust explosion film, form secondary pressure chamber, be filled with gas in outstanding casing in, in first class pressure chamber, be filled with methane gas, make first class pressure
In technique scheme: the left part enlarging of described sleeve (2), described the 3rd venting of dust explosion film (4) is arranged on the position of the initiating terminal of expansion mouth.
In technique scheme: the distance between described the first venting of dust explosion film (3) and the 3rd venting of dust explosion film (4) is greater than the distance between the 3rd venting of dust explosion film (4) and the second venting of dust explosion film (5).
In technique scheme: the diameter of described the first venting of dust explosion film (3) is greater than the internal diameter of sleeve (2).
Beneficial effect: the utility model is reasonable in design, simple in structure, enforcement is easy, can realize unexpected venting of dust explosion in moment preferably.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail:
As shown in Figure 1, the nouns of locality such as the front, rear, left and right in the utility model are the relative position in presentation graphs only, does not represent the absolute position of product.The explosion venting device of a kind of coal of the present utility model and Gas Outburst analogue means is mainly made up of parts such as outstanding casing 1, outstanding hole 1a, sleeve 2, the first venting of dust explosion film 3, the 3rd venting of dust explosion film 4, the second venting of dust explosion film 5, air-filled pores 6.Described outstanding casing 1 is existing design, does not repeat at this, is provided with outstanding hole 1a on outstanding casing 1 one sidewalls, in described outstanding hole 1a, sleeve 2 is housed, the right-hand member of described sleeve 2 is provided with annulus 2a, and annulus 2a is positioned at outside outstanding hole 1a, annulus 1a and sleeve 2 form T shape, convenient installation.The left part enlarging of described sleeve 2, the left end nozzle of described sleeve 2 is provided with the first venting of dust explosion film 3, the diameter of described the first venting of dust explosion film 3 is greater than the internal diameter of sleeve 2, the position of the initiating terminal of described sleeve 2 interior expansion mouths is provided with the 3rd venting of dust explosion film 4, that is to say that expansion mouth is equivalent to a hydraucone, described the 3rd venting of dust explosion film 4 is positioned at bell-mouthed osculum end, right-hand member nozzle in described sleeve 2 is provided with the second venting of dust explosion film 5, and the distance between described the first venting of dust explosion film 3 and the 3rd venting of dust explosion film 4 is greater than the distance between the 3rd venting of dust explosion film 4 and the second venting of dust explosion film 5.Chamber between described the first venting of dust explosion film 3 and the 3rd venting of dust explosion film 4 is first class pressure chamber, chamber between described the 3rd venting of dust explosion film 4 and the second venting of dust explosion film 5 is secondary pressure chamber, on sleeve 2 barrels between described the first venting of dust explosion film 3 and the 3rd venting of dust explosion film 4 between the 3rd venting of dust explosion film 4 and the second venting of dust explosion film 5, be equipped with air-filled pore 6, this sidewall of described outstanding casing 1 is provided with the air vent channel 1b communicating with this air-filled pore 6.
When use: be filled with gas in outstanding casing 1 in, be filled with methane gas in first class pressure chamber, make the pressure in first class pressure chamber be slightly less than the pressure in outstanding casing 1, make like this first venting of dust explosion film 3 be not easy explosion in the process of pressurising.Simultaneously, in secondary pressure chamber, be filled with methane gas, make the pressure in secondary pressure chamber be slightly less than the pressure in first class pressure chamber, make the 3rd venting of dust explosion film 4 in Plenum Process, be difficult for explosion, in the time that the pressure in outstanding casing 1 reaches outstanding pressure, the part methane gas in first class pressure chamber is taken away, make the first venting of dust explosion film 3 explosions, simultaneously moment the 3rd venting of dust explosion film and the second venting of dust explosion film 4,5 explosions, the size of pressure is by sensor measurement.
The utility model is not limited to embodiment, and described the 3rd venting of dust explosion film 4 can be cancelled, and also can reach similar effect.Certainly can also increase venting of dust explosion film.As long as any distortion on basis of the present utility model all falls into protection domain of the present utility model.
Claims (5)
1. the explosion venting device of a coal and Gas Outburst analogue means, comprise the outstanding hole (1a) being arranged on outstanding casing (1) one sidewall, it is characterized in that: sleeve (2) is housed in described outstanding hole (1a), on two nozzles of described sleeve (2), be respectively equipped with the first venting of dust explosion film (3) and the second venting of dust explosion film (5), the barrel of described sleeve (2) is provided with air-filled pore (6), and this sidewall of described outstanding casing (1) is provided with the air vent channel (1b) communicating with this air-filled pore (6).
2. the explosion venting device of coal and Gas Outburst analogue means according to claim 1, it is characterized in that: the middle part in described sleeve (2) is also provided with the 3rd venting of dust explosion film (4), on the barrel of the sleeve (2) between the barrel of the sleeve (2) between described the first venting of dust explosion film (3) and the 3rd venting of dust explosion film (4) and the second venting of dust explosion film (5) and the 3rd venting of dust explosion film (4), be equipped with air-filled pore (6), this sidewall of described outstanding casing (1) is provided with the air vent channel (1b) communicating with air-filled pore (6).
3. the explosion venting device of a kind of coal and Gas Outburst analogue means according to claim 2, is characterized in that: the left part enlarging of described sleeve (2), described the 3rd venting of dust explosion film (4) is arranged on the position of the initiating terminal of expansion mouth.
4. according to the explosion venting device of coal described in claim 2 or 3 and Gas Outburst analogue means, it is characterized in that: the distance between described the first venting of dust explosion film (3) and the 3rd venting of dust explosion film (4) is greater than the distance between the 3rd venting of dust explosion film (4) and the second venting of dust explosion film (5).
5. the explosion venting device of a kind of coal and Gas Outburst analogue means according to claim 1, is characterized in that: the diameter of described the first venting of dust explosion film (3) is greater than the internal diameter of sleeve (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320681214.0U CN203643422U (en) | 2013-10-30 | 2013-10-30 | Explosion venting device of coal and gas outburst simulation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320681214.0U CN203643422U (en) | 2013-10-30 | 2013-10-30 | Explosion venting device of coal and gas outburst simulation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203643422U true CN203643422U (en) | 2014-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320681214.0U Expired - Lifetime CN203643422U (en) | 2013-10-30 | 2013-10-30 | Explosion venting device of coal and gas outburst simulation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203643422U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538940A (en) * | 2019-01-25 | 2019-03-29 | 中国工程物理研究院总体工程研究所 | The quick-fried formula gas delivery system of multi-cavity sequence |
| CN109900543A (en) * | 2019-04-09 | 2019-06-18 | 重庆大学 | The stress induced prominent simulation test device of two-dimensional combination |
| CN110308047A (en) * | 2019-07-02 | 2019-10-08 | 中国矿业大学 | A kind of projecting coal bed stress unloading outburst prevention measures and unloading range optimization method |
-
2013
- 2013-10-30 CN CN201320681214.0U patent/CN203643422U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538940A (en) * | 2019-01-25 | 2019-03-29 | 中国工程物理研究院总体工程研究所 | The quick-fried formula gas delivery system of multi-cavity sequence |
| CN109538940B (en) * | 2019-01-25 | 2021-06-04 | 中国工程物理研究院总体工程研究所 | Multi-cavity sequential explosion type gas transmission system |
| CN109900543A (en) * | 2019-04-09 | 2019-06-18 | 重庆大学 | The stress induced prominent simulation test device of two-dimensional combination |
| CN110308047A (en) * | 2019-07-02 | 2019-10-08 | 中国矿业大学 | A kind of projecting coal bed stress unloading outburst prevention measures and unloading range optimization method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140611 |