CN215136213U - Mining high-emission breaking area liquid CO2 quick fire extinguishing device - Google Patents
Mining high-emission breaking area liquid CO2 quick fire extinguishing device Download PDFInfo
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- CN215136213U CN215136213U CN202121590555.8U CN202121590555U CN215136213U CN 215136213 U CN215136213 U CN 215136213U CN 202121590555 U CN202121590555 U CN 202121590555U CN 215136213 U CN215136213 U CN 215136213U
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Abstract
The utility model provides a mining high liquid CO2 quick extinguishing device that breaks district that emits, includes liquid carbon dioxide storage tank, booster pump, liquid shunt and end cap galvanized weld pipe, liquid carbon dioxide storage tank, booster pump, liquid shunt and end cap galvanized weld pipe pass through low temperature high pressure hose connection. The utility model discloses can make liquid carbon dioxide press to inject and can vaporize rapidly behind the unusual high broken district that emits, can take away a large amount of heats among the vaporization process, gaseous state carbon dioxide can keep for a long time in broken regional, and fire extinguishing efficiency increases.
Description
Technical Field
The utility model belongs to the technical field of colliery fire prevention and extinguishing, in particular to mining high liquid CO2 quick extinguishing device that breaks district that emits.
Background
In the process of tunneling a mine roadway, under the influence of geological structure stress, coal bed gas pressure, ground stress and the like, the top coal rock mass can be thrown to the roadway, and then a high caving area is formed on the top plate of the roadway. Because a large number of pore fractures exist around the holes of the high-emission area, the coal body is crushed into a porous medium to form a good heat storage environment, fresh air flow is provided by tunnel ventilation, and spontaneous combustion of the coal in the high-emission area of the tunnel is easily caused; meanwhile, gas is easily accumulated in a vacant top area formed after coal is thrown out of the top of the roadway, so that local gas is over-limited, and spontaneous combustion coal is easy to cause explosion accidents after contacting with gas reaching an explosion concentration range (5% -16%), so that secondary disasters are caused, and casualties are caused. Therefore, for coal mines, especially high gas mines, the research on a set of equipment suitable for quickly treating spontaneous combustion fire of coal in a tunnel high-risk area is significant.
The high-emission area coal body high-temperature point is extremely hidden and easy to reburn, the years of development of fire prevention and extinguishing technologies mainly centers on two aspects of oxygen reduction and cooling, the conventional high-emission area fire extinguishing technologies at home and abroad mainly have prevention and control means such as water injection, grouting, glue injection and the like, the defects are obvious, and the fire prevention and extinguishing technologies have the following points:
(1) the fire prevention and extinguishing technology for the high-emission area needs to take water as a main carrier, fire extinguishing materials conveyed to the top plate can be carried away by the water moving downwards rapidly, most of the fire extinguishing materials fall to the bottom plate along with the water without action, the fire extinguishing effect is low, and meanwhile material waste is easy to cause;
(2) in a high gas mine, a high-emission area often has a gas accumulation phenomenon, the gas accumulated at the top is difficult to process by normal means, and the accumulated gas reaches a certain concentration and can cause explosion accidents when encountering open fire;
(3) the conventional high-emission area fire prevention and extinguishing technology has the defects that the migration efficiency of fire extinguishing materials driven by water is too low, the coverage area of single drilling hole is small, and a large amount of intensive drilling holes are needed for assistance.
Disclosure of Invention
In order to overcome above technical problem, the utility model aims to provide a liquid CO2 quick extinguishing device in mining high burst broken district can vaporize rapidly after making liquid carbon dioxide press to inject unusual high burst broken district, can take away a large amount of heats among the vaporization process, and gaseous state carbon dioxide keeps in broken regional internal energy longer time, and fire extinguishing efficiency increases.
In order to realize the purpose, the utility model discloses a technical scheme is:
the utility model provides a mining high liquid CO2 quick extinguishing device that breaks district that emits, includes liquid carbon dioxide storage tank 1, booster pump 2, liquid shunt 3 and end cap galvanized weld pipe 6, liquid carbon dioxide storage tank 1, booster pump 2, liquid shunt 3 and end cap galvanized weld pipe 6 pass through low temperature high-pressure hose 5 and connect.
The liquid carbon dioxide storage tank 1 is used for storing liquid carbon dioxide.
The booster pump 2 is used for pressurizing and conveying the liquid carbon dioxide flowing out of the liquid carbon dioxide storage tank 1.
The liquid splitter 3 splits the pressurized liquid carbon dioxide to various output locations.
The plug galvanized welded pipe 6 is provided with a plurality of injection holes at fixed intervals, and one end of the plug galvanized welded pipe is plugged.
And a valve 4 is arranged on the low-temperature high-pressure hose 5.
The beneficial effects of the utility model.
(1) Liquid carbon dioxide is injected into the abnormal high-emission crushing area under pressure and then is rapidly vaporized, a large amount of heat can be taken away in the vaporization process, gaseous carbon dioxide can be kept in the crushing area for a long time, and the fire extinguishing efficiency is increased.
(2) The adsorption capacity of the coal to carbon dioxide is far greater than that of oxygen, the carbon dioxide can be quickly adsorbed by the surface of the coal body, the oxidation capacity of the coal is reduced, and the continuous spontaneous combustion capacity of the coal is inhibited;
(3) the carbon dioxide after vaporization and expansion can quickly dilute and replace the accumulated methane gas, and then the methane gas is extruded out of the empty top area, enters the tunnel and is diluted by airflow and then is discharged along with the air, so that the danger of gas explosion is prevented;
(4) after the liquid carbon dioxide is vaporized, the expansion is about 640 times of the original volume, the migration range of gas among coal gaps is greatly increased, the radiation area of a single drill hole is wide, and the radiation effect is good.
Description of the drawings:
fig. 1 is a schematic view of the overall structure of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1: the device is connected in sequence as shown in the figure, and the assembly mode is as follows: the liquid carbon dioxide storage tank 1, the booster pump 2, the liquid flow divider 3 and the plug galvanized welded pipe 6 are sequentially connected by the low-temperature high-pressure hose 5, and then the installation can be completed.
Liquid carbon dioxide storage tank 1: a container for storing liquid carbon dioxide;
and 2, a booster pump: the low-temperature liquid booster pump 2 is used for pressurizing and conveying liquid carbon dioxide flowing out of the storage tank;
the liquid flow divider 3: diverting the pressurized liquid carbon dioxide to various output locations;
plug galvanized welded pipe 6: a plurality of injection holes are formed in the common galvanized welded pipe at fixed intervals, and one end of the common galvanized welded pipe is blocked, so that pressurized liquid carbon dioxide is injected into a high-emission crushing area.
The utility model discloses the theory of operation:
the liquid carbon dioxide storage tank 1 is transported to a designated position by a trackless rubber-tyred vehicle or a flat car; sequentially connecting a liquid carbon dioxide storage tank 1, a booster pump 2, a liquid flow divider 3 and a plug galvanized welded pipe 6 by using a low-temperature high-pressure hose 5, drilling a hole in a high-pressure abnormal-breakage area, inserting the plug galvanized welded pipe 6, and immersing all processing holes in a breakage top plate to complete basic arrangement work; after all the valves 4 are ensured to be opened, the booster pump 2 is opened, and liquid carbon dioxide is injected into the high-emission breakage abnormal area under pressure.
Claims (6)
1. The utility model provides a mining high liquid CO2 quick extinguishing device that breaks district that emits, its characterized in that includes liquid carbon dioxide storage tank (1), booster pump (2), liquid shunt (3) and end cap galvanized weld pipe (6), liquid carbon dioxide storage tank (1), booster pump (2), liquid shunt (3) and end cap galvanized weld pipe (6) are connected through low temperature high-pressure hose (5).
2. The mining high-cap breaking-area liquid CO2 quick fire extinguishing apparatus according to claim 1, characterized in that the liquid carbon dioxide storage tank (1) is used for storing liquid carbon dioxide.
3. The mining high-cap breaking area liquid CO2 quick fire extinguishing device is characterized in that the booster pump (2) is used for conveying liquid carbon dioxide flowing out of a liquid carbon dioxide storage tank (1) in a pressurizing mode.
4. The mining high head breaking zone liquid CO2 quick fire extinguishing apparatus according to claim 1, characterized in that the liquid diverter (3) diverts pressurized liquid carbon dioxide to various output positions.
5. The mining high-cap breaking area liquid CO2 quick fire extinguishing device according to claim 1, wherein the plug galvanized welded pipe (6) is provided with a plurality of injection holes at fixed intervals and one end is blocked.
6. The mining high-cap breaking-area liquid CO2 quick fire extinguishing device is characterized in that a valve (4) is arranged on the low-temperature high-pressure hose (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121590555.8U CN215136213U (en) | 2021-07-14 | 2021-07-14 | Mining high-emission breaking area liquid CO2 quick fire extinguishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121590555.8U CN215136213U (en) | 2021-07-14 | 2021-07-14 | Mining high-emission breaking area liquid CO2 quick fire extinguishing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215136213U true CN215136213U (en) | 2021-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121590555.8U Active CN215136213U (en) | 2021-07-14 | 2021-07-14 | Mining high-emission breaking area liquid CO2 quick fire extinguishing device |
Country Status (1)
| Country | Link |
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| CN (1) | CN215136213U (en) |
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2021
- 2021-07-14 CN CN202121590555.8U patent/CN215136213U/en active Active
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