A prediction method and device based on gas geology visualization

Abstract

The application discloses a kind of prediction method and device based on gas geology visualization, including bearing box and transparent plate, transparent plate is fixedly connected to the front of bearing box, the inside of bearing box is provided with first filler and second filler for simulating coal mine, tunnel component, it is set to the inside of bearing box, tunnel component includes first shell and second shell, multiple ventilation components, paperboard component for simulating tunnel inner wall, paperboard component is set to the outside of first shell, ignition component.The application uses the cooperation use mode of bearing box, transparent plate, tunnel component, first filler and second filler, can simulate coal mine cavern place under the action of bearing box, tunnel component, first filler and second filler, then according to demand, different concentration gas is carried out explosion test in it, and the inside of simulated coal mine cavern place can be observed gas explosion situation through transparent plate.

Description

Technical Field

[0001] This invention relates to the field of gas geology, and in particular to a prediction method and apparatus based on gas geology visualization. Background Technology

[0002] Gas geology is an interdisciplinary field that studies the formation, occurrence, and migration of coal seam gas, as well as the theory of gas geological disaster prevention and control. Gas is a harmful gas that affects the safe production of coal mines. Controlling the amount of gas emission and reducing coal and gas outburst dynamic disasters can improve the safety of coal mines. Gas is a greenhouse gas, but it is also a clean energy source. Improving the coal seam gas extraction rate can protect the atmospheric environment and improve resource utilization.

[0003] Coal mining safety is threatened by methane gas. Methane explosions occur frequently during coal mine production, causing serious casualties and economic losses. Studying the propagation law and flame characteristics of methane explosions is of great significance for assessing the hazard of methane explosions and preventing them. Methane explosion propagation tests are generally conducted in a steel pipe ignited at one end, and then the explosion pressure inside the steel pipe is tested using sensors. However, the stable structure of steel pipes makes it inconvenient to conduct demonstration tests on the factors that generate the power of methane explosions inside the mine and mine collapse. Summary of the Invention

[0004] The purpose of this invention is to provide a prediction method and apparatus based on gas geological visualization to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a prediction method and apparatus based on gas geological visualization, comprising:

[0006] A carrier box and a transparent panel, the transparent panel being fixedly connected to the front of the carrier box, the interior of the carrier box being provided with a first filler and a second filler for simulating a coal mine;

[0007] A tunnel assembly, disposed inside a support box, comprising:

[0008] First and second shells used to simulate tunnels and well walls;

[0009] Multiple ventilation components are fixedly installed on one side of the top of the first housing;

[0010] A cardboard assembly for simulating the inner wall of a tunnel, the cardboard assembly being disposed outside the first housing;

[0011] An ignition assembly is located inside the first housing.

[0012] Preferably, a sealing gasket is provided between the front of the first housing and the front of the second housing and the transparent plate. The second housing is disposed on one side of the top of the first housing. A slot matching the second housing is opened on one side of the top of the first housing. Two fixed brackets are fixedly connected to the bottom of the inner wall of the carrier box. The top of the outer wall of the fixed bracket is slidably engaged with the first housing.

[0013] Preferably, connecting plates are fixedly connected to the bottom of both sides of the second housing, and connecting bolts are provided on the top of each connecting plate. The connecting plates are fixedly connected to the first housing through the connecting bolts. A sealing plate is provided on the top of the second housing, and a first hinge is provided on the side of the sealing plate. The sealing plate is rotatably connected to the second housing through the first hinge.

[0014] Preferably, the ventilation assembly includes a connecting pipe, and a plurality of ventilation holes matching the connecting pipe are provided on the side of the top of the first housing. A fixing collar is fixedly sleeved on the bottom of the outer wall of the connecting pipe, and a plurality of fixing bolts are arranged in a ring array on the top of the fixing collar. The fixing collar is fixedly connected to the first housing by the fixing bolts.

[0015] Preferably, a connecting housing is fixedly connected to the top of the connecting pipe, a cover is provided on the top of the connecting housing, a second hinge is provided on the side of the cover, the cover is rotatably connected to the connecting housing through the second hinge, a fan is provided inside the connecting housing, and a fixing plate is fixedly connected between the fan and the connecting housing on both sides.

[0016] Preferably, the cardboard assembly includes two first partition cardboards and a plurality of second partition cardboards. The two first partition cardboards are disposed at both ends of the first housing. The two adjacent sides of the first housing and both sides of the second housing are provided with a plurality of through holes corresponding to the second partition cardboards.

[0017] Preferably, multiple limiting plates are fixedly connected to two adjacent sides of the first housing and both sides of the second housing. Each of the two corresponding limiting plates has a slot on its opposite side, and both ends of the outer wall of the second partition cardboard are slidably engaged with the inner cavity of the slot.

[0018] Preferably, the ignition assembly includes multiple ignition rods and a gas injection tube. The top of the outer wall of the ignition rod is fixedly inserted and sleeved with the bottom of the first housing. The multiple ignition rods are equidistantly arranged. The gas injection tube is located inside the carrier box. One end of the gas injection tube is fixedly connected to a threaded connector. A threaded hole is opened on the side of the back of the first housing. The threaded connector is threadedly sleeved with the inner cavity of the threaded hole.

[0019] This invention also provides a prediction method based on gas geological visualization, comprising the following steps:

[0020] Step 1: Install the tunnel assembly, the first filler, and the second filler inside the carrier box. This involves bringing the first housing and the second housing together to fit against the back of the transparent plate, and sliding the outer wall of the first housing against the two fixed brackets. Then, snap multiple second partition boards between two corresponding limiting plates. Next, fill the carrier box with the first filler and the second filler. When filling the first filler and the second filler, place the first partition boards on both sides of the first housing.

[0021] Step 2: Inject gas into the first and second shells. Gas is injected into the first shell through the gas injection pipe and threaded connector, while the sealing plate at the top of the second shell and the cover plate connecting the top of the shell are closed. Then, the gas inside the first shell is ignited using an ignition rod. The first and second partition paperboards are then observed for any damage, i.e., whether the filling material has flowed into the first shell. A reset test is then conducted, igniting the gas at different locations on the first shell to observe the impact of gas explosion when ignited at different locations.

[0022] Step 3: Reset the test so that the sealing plate at the top of the second shell and the cover connecting the top of the shell are both in the open state. Then, conduct ignition tests on the ignition rods at different positions on the first shell to observe the effect of gas explosion when ignited at different positions.

[0023] Step 4: Reset the test, so that the sealing plate at the top of the second shell and the cover connecting the top of the shell are both in the open state, and make the fan work to enable external ventilation inside the first and second shells. Then, make ignition tests at different positions on the first shell to observe the effect of gas explosion when the first and second shells have ventilation function, with the ignition source close to the ventilation position and the ignition source far away from the ventilation position.

[0024] The technical effects and advantages of this invention are as follows:

[0025] (1) The present invention utilizes the combined use of a carrier box, a transparent plate, a tunnel component, a first filler and a second filler. Under the action of the carrier box, the tunnel component, the first filler and the second filler, a coal mine tunnel site can be simulated. Then, according to the requirements, different concentrations of gas are used to conduct explosion tests inside the simulated coal mine tunnel site. The gas explosion inside the simulated coal mine tunnel site can be observed through the transparent plate.

[0026] (2) The present invention utilizes the setting method of the tunnel component, which includes a first shell, a second shell, a ventilation component, a cardboard component, an ignition component and a fixed support, wherein the first shell and the second shell form a coal mine tunnel, and then under the action of the ignition component, gas is injected into the first shell and the second shell and the gas is ignited, and then the first filling material or the second filling material inside the carrying box is observed through the cardboard component to see if it has entered the first shell and the second shell;

[0027] (3) The present invention utilizes the setting method of the ventilation component, which includes a connecting pipe, a connecting shell, a plate cover and a fan. After injecting gas into the tunnel component, the gas concentration inside the tunnel component can be adjusted according to the gas content inside the simulated mine. Furthermore, ignition gas tests can be conducted near or away from the ventilation component as needed. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the internal structure of the front of the present invention.

[0029] Figure 2 This is a schematic diagram of the internal structure of the side of the present invention.

[0030] Figure 3 This is a schematic diagram of the overall structure of the first housing of the present invention.

[0031] Figure 4 This is a schematic diagram of the internal structure of the front of the first housing of the present invention.

[0032] Figure 5 This is a schematic diagram of the internal structure of the side of the first housing portion of the present invention.

[0033] Figure 6 This is a schematic diagram of the internal structure of the front of the connecting housing of the present invention.

[0034] In the diagram: 1. Carrier box; 2. Transparent plate; 3. Tunnel assembly; 31. First shell; 32. Second shell; 321. Sealing plate; 33. Ventilation assembly; 331. Connecting pipe; 332. Vent hole; 333. Fixing collar; 334. Fixing bolt; 335. Connecting shell; 336. Cover; 337. Second hinge; 338. Fan; 339. Fixing plate; 34. Cardboard assembly; 341. First partition cardboard; 342. Second partition cardboard; 343. Through hole; 344. Limiting plate; 35. Ignition assembly; 351. Ignition rod; 352. Gas injection pipe; 353. Threaded connector; 36. Fixing bracket; 4. First filler; 5. Second filler. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] This invention provides, for example Figure 1-6 The method and apparatus for predicting gas geology based on visualization, as shown, include:

[0037] The carrier box 1 and the transparent plate 2 are fixedly connected to the front of the carrier box 1. The carrier box 1 is equipped with a first filler 4 and a second filler 5 for simulating a coal mine. The tunnel assembly 3 is located inside the carrier box 1. The tunnel assembly 3 includes a first shell 31 and a second shell 32 for simulating a tunnel and shaft wall. The front of the first shell 31 and the second shell 32 are both open. The transparent plate 2 is made of acrylic material, so the gas explosion inside the first shell 31 and the second shell 32 can be directly observed through the transparent plate 2. Multiple ventilation components 33 are fixedly installed on one side of the top of the first shell 31. A cardboard assembly 34 for simulating the inner wall of the tunnel is located outside the first shell 31. An ignition assembly 35 is located inside the first shell 31.

[0038] Specifically, sealing gaskets are provided between the front of the first housing 31 and the front of the second housing 32 and the transparent plate 2. The second housing 32 is located on one side of the top of the first housing 31. A slot matching the second housing 32 is opened on one side of the top of the first housing 31, so that the first housing 31, the second housing 32, the first filler 4 and the second filler 5 can simulate a mine site. The first filler 4 and the second filler 5 are dry soil particles and coal particles, respectively. Two fixed brackets 36 are fixedly connected to the bottom of the inner wall of the bearing box 1. The top of the outer wall of the fixed brackets 36 is slidably engaged with the first housing 31.

[0039] Furthermore, connecting plates are fixedly connected to the bottom of both sides of the second housing 32, and connecting bolts are provided on the top of the connecting plates. The connecting plates are fixedly connected to the first housing 31 through the connecting bolts. A sealing plate 321 is provided on the top of the second housing 32. The sealing plate 321 is used to make the mine shaft of the second housing 32 either open or sealed. A first hinge is provided on the side of the sealing plate 321. The sealing plate 321 is rotatably connected to the second housing 32 through the first hinge.

[0040] Furthermore, the ventilation component 33 includes a connecting pipe 331. The top side of the first housing 31 is provided with a plurality of ventilation holes 332 that match the connecting pipe 331. Thus, under the action of the connecting pipe 331, the mine formed by the first housing 31 can have a simulated ventilation function. A fixing collar 333 is fixedly sleeved on the bottom of the outer wall of the connecting pipe 331. A plurality of fixing bolts 334 are arranged in a ring array on the top of the fixing collar 333. The fixing collar 333 is fixedly connected to the first housing 31 by the fixing bolts 334.

[0041] Furthermore, a connecting housing 335 is fixedly connected to the top of the connecting pipe 331. A cover 336 is provided on the top of the connecting housing 335. The cover 336 can seal the top of the connecting housing 335, thereby keeping the mine shaft formed by the first housing 31 in a non-ventilated state. A second hinge 337 is provided on the side of the cover 336. The cover 336 is rotatably connected to the connecting housing 335 through the second hinge 337. A fan 338 is provided inside the connecting housing 335. The fan 338 can accelerate the ventilation efficiency of the connecting pipe 331 to the inside of the first housing 31. Fixing plates 339 are fixedly connected to both sides of the fan 338 and between the fan 338 and the connecting housing 335.

[0042] Furthermore, the cardboard assembly 34 includes two first partition cardboards 341 and multiple second partition cardboards 342. The two first partition cardboards 341 are disposed at both ends of the first housing 31. Multiple through holes 343 corresponding to the second partition cardboards 342 are provided on two adjacent sides of the first housing 31 and both sides of the second housing 32. The first partition cardboards 341 and the second partition cardboards 342 are used to simulate the strength of the inner wall of the mine. When a gas explosion occurs inside the mine, the damage of the first partition cardboards 341 and the second partition cardboards 342 is observed, that is, the collapse of the mine is simulated when a gas explosion occurs inside the mine. The strength of the first partition cardboards 341 and the strength of the second partition cardboards 342 are proportionally reduced to the strength of the inner wall of the mine and the power of the gas explosion inside the mine.

[0043] Furthermore, multiple limiting plates 344 are fixedly connected to the two adjacent sides of the first housing 31 and both sides of the second housing 32. Each of the two corresponding limiting plates 344 has a slot on its opposite side. Both ends of the outer wall of the second partition cardboard 342 are slidably engaged with the inner cavity of the slot. The limiting plates 344 can improve the stability of the second partition cardboard 342.

[0044] Furthermore, the ignition assembly 35 includes multiple ignition rods 351 and a gas injection pipe 352. The gas injection pipe 352 is connected to an external gas source, thereby injecting gas into the interior of the first housing 31. The top of the outer wall of the ignition rods 351 is fixedly inserted and sleeved with the bottom of the first housing 31. The arrangement of multiple ignition rods 351 can simulate the situation of ignition gas explosion occurring at different locations in the mine. The multiple ignition rods 351 are equidistantly arranged. The gas injection pipe 352 is located inside the carrier box 1. One end of the gas injection pipe 352 is fixedly connected to a threaded connector 353. A threaded hole is opened on the side of the back of the first housing 31, and the threaded connector 353 is threadedly sleeved with the inner cavity of the threaded hole.

[0045] Ignition rod 351 and fan 338 are electrically connected to an external power source through external ignition rod switch and fan switch, respectively.

[0046] Working principle of this invention:

[0047] The tunnel assembly 3, the first filler 4, and the second filler 5 are installed inside the carrier box 1. The first housing 31 is brought into contact with the back of the transparent plate 2, and the outer wall of the first housing 31 is slidably engaged with the two fixed brackets 36. Then, multiple second partition paperboards 342 are engaged between two corresponding limiting plates 344. Then, the first filler 4 and the second filler 5 are filled into the carrier box 1. When filling the first filler 4 and the second filler 5, the first partition paperboards 341 are placed on both sides of the first housing 31.

[0048] Gas is injected into the first housing 31 and the second housing 32. Specifically, gas injection pipe 352 injects gas into the first housing 31 through threaded connector 353, and the sealing plate 321 at the top of the second housing 32 and the cover 336 at the top of the connecting housing 335 are both closed. Then, the gas inside the first housing 31 is ignited using ignition rod 351. The first partition paperboard 341 and the second partition paperboard 342 are then observed for any damage, i.e., whether any filling material has entered the interior of the first housing 31. A reset test is then conducted, and ignition tests are performed on ignition rods 351 at different locations on the first housing 31 to observe the impact of gas explosion when ignited at different locations.

[0049] The reset test was conducted so that the sealing plate 321 at the top of the second housing 32 and the cover 336 at the top of the connecting housing 335 were both in the open state. Then, the ignition rods 351 at different positions on the first housing 31 were used for ignition tests to observe the effect of gas explosion when ignited at different positions.

[0050] The reset test was conducted so that the sealing plate 321 at the top of the second housing 32 and the cover 336 connecting the top of the housing 335 were both in an open state, and the fan 338 was activated to provide external ventilation to the interior of the first housing 31 and the second housing 32. Then, ignition tests were conducted on the ignition rods 351 at different positions on the first housing 31 to observe the effects of gas explosion when the interior of the first housing 31 and the second housing 32 had ventilation functions, with the ignition source close to the ventilation position and the ignition source far away from the ventilation position.

[0051] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A predictive device based on gas geological visualization, characterized in that, include: The carrier box (1) and the transparent plate (2) are fixedly connected to the front of the carrier box (1). The carrier box (1) is provided with a first filler (4) and a second filler (5) for simulating a coal mine. A tunnel assembly (3), disposed inside the support box (1), the tunnel assembly (3) comprising: First shell (31) and second shell (32) used to simulate tunnel and well wall; Multiple ventilation components (33) are fixedly installed on one side of the top of the first housing (31); A cardboard assembly (34) for simulating the inner wall of a tunnel, the cardboard assembly (34) being disposed outside the first housing (31); An ignition assembly (35) is disposed inside the first housing (31). Sealing gaskets are provided between the front of the first housing (31), the front of the second housing (32), and the transparent plate (2). The second housing (32) is disposed on one side of the top of the first housing (31). A slot matching the second housing (32) is provided on one side of the top of the first housing (31). Two fixed brackets (36) are fixedly connected to the bottom of the inner wall of the carrier box (1). The top of the outer wall of the fixed brackets (36) is slidably engaged with the first housing (31). Connecting plates are fixedly connected to the bottom of both sides of the second housing (32). Connecting bolts are provided on the top of each connecting plate. The connecting plate is fixedly connected to the first housing (31) by connecting bolts. A sealing plate (321) is provided on the top of the second housing (32). A first hinge is provided on the side of the sealing plate (321). The sealing plate (321) is rotatably connected to the second housing (32) by the first hinge. The cardboard assembly (34) includes two first partition cardboards (341) and multiple second partition cardboards (342). The two first partition cardboards (341) are provided at both ends of the first housing (31). Multiple through holes (343) corresponding to the second partition cardboards (342) are provided on two adjacent sides of the first housing (31) and both sides of the second housing (32).

2. The prediction device based on gas geological visualization according to claim 1, characterized in that, The ventilation assembly (33) includes a connecting pipe (331). The top side of the first housing (31) is provided with a plurality of ventilation holes (332) that match the connecting pipe (331). A fixing collar (333) is fixedly sleeved on the bottom of the outer wall of the connecting pipe (331). A plurality of fixing bolts (334) are arranged in a ring array on the top of the fixing collar (333). The fixing collar (333) is fixedly connected to the first housing (31) by the fixing bolts (334).

3. The prediction device based on gas geological visualization according to claim 2, characterized in that, The top of the connecting pipe (331) is fixedly connected to a connecting housing (335). The top of the connecting housing (335) is provided with a cover (336). The side of the cover (336) is provided with a second hinge (337). The cover (336) is rotatably connected to the connecting housing (335) through the second hinge (337). The inside of the connecting housing (335) is provided with a fan (338). The two sides of the fan (338) and the connecting housing (335) are fixedly connected with fixing plates (339).

4. The prediction device based on gas geological visualization according to claim 3, characterized in that, Multiple limiting plates (344) are fixedly connected to the two adjacent sides of the first housing (31) and the two sides of the second housing (32). Each of the two corresponding limiting plates (344) has a slot on its opposite side. Both ends of the outer wall of the second partition cardboard (342) are slidably engaged with the inner cavity of the slot.

5. The prediction device based on gas geological visualization according to claim 4, characterized in that, The ignition assembly (35) includes multiple ignition rods (351) and a gas injection tube (352). The top of the outer wall of the ignition rod (351) is fixedly inserted and sleeved with the bottom of the first housing (31). The multiple ignition rods (351) are equidistantly arranged. The gas injection tube (352) is located inside the carrier box (1). One end of the gas injection tube (352) is fixedly connected to a threaded connector (353). A threaded hole is opened on the side of the back of the first housing (31). The threaded connector (353) is threadedly sleeved with the inner cavity of the threaded hole.

6. A prediction method based on gas geological visualization, characterized in that, The prediction method based on gas geological visualization includes the prediction device based on gas geological visualization as described in claim 5, and includes the following steps: Step 1: Install the tunnel assembly (3), the first filler (4), and the second filler (5) inside the carrier box (1), that is, bring the first shell (31) and the second shell (32) together with the back of the transparent plate (2), and make the outer wall of the first shell (31) slide and snap into the two fixed brackets (36). Then, snap multiple second partition paperboards (342) between two corresponding limiting plates (344). Then, fill the first filler (4) and the second filler (5) into the carrier box (1). When filling the first filler (4) and the second filler (5), place the first partition paperboards (341) on both sides of the first shell (31). Step 2: Inject gas into the first shell (31) and the second shell (32), that is, inject gas into the first shell (31) through the gas injection pipe (352) through the threaded connector (353), and keep the sealing plate (321) at the top of the second shell (32) and the cover plate (336) at the top of the connecting shell (335) closed. Then, use the ignition rod (351) to ignite the gas inside the first shell (31), and then observe whether the first partition paperboard (341) and the second partition paperboard (342) are damaged, that is, observe whether the filling material has flowed into the inside of the first shell (31). Reset test, and make the ignition rod (351) at different positions on the first shell (31) ignite test, so as to observe the effect of gas explosion when ignited at different positions; Step 3: Reset the test so that the sealing plate (321) on the top of the second shell (32) and the cover plate (336) on the top of the connecting shell (335) are both in the open state. Then, ignite the ignition rods (351) at different positions on the first shell (31) to conduct ignition tests, so as to observe the effect of gas explosion when ignited at different positions. Step 4: Reset the test, so that the sealing plate (321) on the top of the second shell (32) and the cover plate (336) on the top of the connecting shell (335) are both in the open state, and make the fan (338) work to make the interior of the first shell (31) and the second shell (32) have external ventilation effect. Then, make the ignition rod (351) at different positions on the first shell (31) to conduct ignition test, so as to observe the effect of gas explosion when the interior of the first shell (31) and the second shell (32) have ventilation function, the ignition source is close to the ventilation position and the ignition source is far away from the ventilation position.

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