CN216950457U - Intelligent fire prevention and extinguishing system for coal mine goaf - Google Patents
Intelligent fire prevention and extinguishing system for coal mine goaf Download PDFInfo
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- CN216950457U CN216950457U CN202220777103.9U CN202220777103U CN216950457U CN 216950457 U CN216950457 U CN 216950457U CN 202220777103 U CN202220777103 U CN 202220777103U CN 216950457 U CN216950457 U CN 216950457U
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Abstract
The utility model relates to an intelligent fire prevention and extinguishing system for a coal mine goaf, which effectively solves the problem of safe fire prevention and extinguishing of the coal mine goaf and has the structure that a temperature monitoring system comprises a temperature sensor, a data transmission line and a data processing module, wherein the temperature monitoring system and a stopping agent injection system are connected with the data processing module of a controller through the data transmission line; the solid stopping agent is filled in the injection pipe of the stopping agent injection system, the downward nozzle pipe is arranged on the injection pipe, the electromagnetic switch is arranged on the nozzle pipe, one end of the injection pipe is in the same sphere shapeThe stainless steel frames are communicated and the other end is closed, and the spherical stainless steel frame is filled with high-concentration CO2The hydrate is connected with a large steering engine through a steel cone, the large steering engine is connected with a signal inlet terminal of the data processing module through an electromagnetic switch, and a signal output terminal of the data processing module is connected with a display arranged at a fire position. The utility model has convenient installation and use, automatic control, reduced labor intensity, and effective guarantee of personnel safety and the safety, fire prevention and fire extinguishing problems of mining areas.
Description
Technical Field
The utility model relates to safety fire prevention and extinguishing equipment, in particular to an intelligent fire prevention and extinguishing system for a coal mine goaf.
Background
Along with the increase of the mining intensity and depth of a coal mine, the spontaneous combustion phenomenon of the coal in a goaf is increased rapidly, a large amount of heat is generated by the oxidation of the coal, the heat cannot be evacuated in time, and the heat is accumulated to finally enable the spontaneous combustion of the coal body. If no measure is taken for control, along with the continuous oxidation of the coal, when the heat is accumulated to a certain degree, once the temperature of the area breaks through the ignition point, the coal can be spontaneously combusted; the temperature in the goaf is accumulated, the change of the temperature in the goaf aggravates the oxidation speed of the residual coal, the oxidation speed and the oxidation speed further increase the temperature in the goaf, the spontaneous combustion can be further expanded, and more serious spontaneous combustion accidents are caused. When a spontaneous combustion accident occurs, due to the fact that the space of a mine is narrow, sight lines and activities of personnel are greatly affected, once a fire disaster occurs, the personnel are difficult to avoid or escape, large fire fighting equipment is difficult to transport to the site in a short time, and fire extinguishment is relatively difficult. Meanwhile, ventilation and oxygen supply of mine roadways and working surfaces are limited, and once a fire disaster occurs, oxygen is consumed due to combustion, so that insufficient air supply is caused, and people cannot breathe the air and suffocate the fire disaster. In addition, high temperature and a large amount of toxic and harmful gases are generated by combustion, and people can be in contact with or excessively inhale for a long time to cause poisoning and casualty.
At present, most of goaf fire prevention and extinguishing systems at home and abroad need to be directly participated in manually due to structural problems, and the goaf fire prevention and extinguishing systems are not fully satisfactory in use, so that structural improvement and innovation of the goaf fire prevention and extinguishing systems are imperative.
SUMMERY OF THE UTILITY MODEL
Aiming at the situation, in order to overcome the defects of the prior art, the utility model aims to provide an intelligent fire prevention and extinguishing system for a coal mine goaf, which can effectively solve the problem of safe fire prevention and extinguishing of the coal mine goaf.
The utility model solves the technical scheme that the intelligent fire prevention and extinguishing system for the coal mine goaf comprises a temperature monitoring system, a stopping agent injection system and a controller, wherein the temperature monitoring system comprises a temperature sensor, a data transmission line and a data processing module; the inhibitor injection system comprises a large steering engine and an injection pipe, wherein a solid inhibitor is arranged in the injection pipe, a downward nozzle pipe is arranged on the injection pipe, a first electromagnetic switch is arranged on the nozzle pipe, one end of the injection pipe is communicated with a spherical stainless steel frame, the other end of the injection pipe is closed, and high-concentration CO is arranged in the spherical stainless steel frame2The spherical stainless steel frame is connected with a rotating shaft of a large steering engine through a steel cone, the large steering engine is connected with a signal inlet terminal of a data processing module of the controller through a second electromagnetic switch, and a signal output terminal of the data processing module is connected with a display arranged at a fire catching position through a signal wire; the first electromagnetic switch, the second electromagnetic switch, the large steering engine, the display and the temperature sensor are all connected with the controller through a data bus to form an intelligent control system structure.
The utility model has novel and unique structure, convenient installation and use, good effect, automatic control, reduced labor intensity, effective guarantee of personnel safety and the problems of fire prevention and extinguishment in mining areas, and obvious economic and social benefits.
Drawings
Fig. 1 is a front view of the structure of the present invention.
Fig. 2 is a diagram showing a connection structure between a temperature sensor and a controller in the inhibitor injection system according to the present invention.
Fig. 3 is a connection structure diagram of the controller and the display according to the present invention.
FIG. 4 is a diagram of the connection between the inhibitor injection system and the controller according to the present invention.
FIG. 5 is a view showing the connection structure of the inhibitor injection system of the present invention to the nozzle pipe.
Fig. 6 is a radial cross-sectional view of the ejector tube of the present invention.
Detailed Description
The following detailed description of embodiments of the utility model refers to the accompanying drawings.
As shown in fig. 1-6, the intelligent fire prevention and extinguishing system for the coal mine goaf comprises a temperature monitoring system 1, a stopping agent injection system 10 and a controller 3, wherein the temperature monitoring system comprises a temperature sensor 6, a data transmission line 8 and a data processing module 4, and the temperature monitoring system 1 and the stopping agent injection system 10 are both connected with the data processing module 4 of the controller 3 through the data transmission line 8; the inhibitor injection system 10 comprises a large steering engine 15 and an injection pipe 21, wherein a solid inhibitor 22 is arranged in the injection pipe 21, a downward nozzle pipe 25 is arranged on the injection pipe 21, a first electromagnetic switch 20 is arranged on the nozzle pipe 25, one end of the injection pipe 21 is communicated with a spherical stainless steel frame 19, the other end of the injection pipe is closed, and high-concentration CO is arranged in the spherical stainless steel frame 192A hydrate 18, a spherical stainless steel frame 19 is connected with a rotating shaft 16 of a large steering engine 15 through a steel cone 17, the large steering engine 15 is connected with a signal inlet terminal 9 of a data processing module 4 of the controller 3 through a second electromagnetic switch 14, and a signal output terminal 11 of the data processing module 4 is connected with a display 13 arranged at a fire position through a signal wire; the first electromagnetic switch 20, the second electromagnetic switch 14, the large steering engine 15, the display 13 and the temperature sensor 6 are all connected with the controller through a data bus to form an intelligent control system structure.
In order to ensure the use effect and the use convenience, the injection pipe 21 is a hollow long round pipe, and a solid stopping agent 22 is filled in the center;
a nozzle pipe 25 communicated with the inside of the injection pipe 21 is arranged on the side wall of the lower part of the injection pipe, and a spray head 25-1 is arranged on an outlet at the lower part of the nozzle pipe 25;
the nozzle pipe 25 is provided with a small steering engine 26 through a support, a rotating gear 24 is arranged on a rotating shaft of the small steering engine 26, a gear baffle 23 which is meshed with the rotating gear 24 is arranged on the rotating gear 24, the gear baffle 23 horizontally extends into the nozzle pipe 25, and the small steering engine 26 is connected with the controller 3 to form an injection quantity control structure of the nozzle pipe 25;
the temperature monitoring system 1 is provided with a positioner 2 connected with the controller 3 and used for positioning the spray head 25-1 in the monitoring range 7;
the display 13 is provided with an alarm lamp 12, and the controller 3 is provided with an alarm 5.
The controller 3 is a PLC controller or a singlechip 8051 controller.
In the above structure, wherein:
the temperature sensor is used for monitoring the temperature change of the goaf; the data transmission line is used for transmitting a temperature signal sent by the temperature sensor; the data processing module is used for receiving a temperature signal sent by the temperature sensor, setting a temperature warning line, and triggering the alarm system and the inhibitor injection system when the temperature exceeds the warning line;
the positioning system is used for monitoring the detailed position of the ignition area of the goaf, utilizing the position of a temperature sensor arranged on the goaf by the temperature monitoring system, establishing a corresponding position small program on a host computer, and accurately obtaining the position of the ignition place through the signal of the temperature sensor;
the data processing system is used for processing the signals transmitted by the temperature monitoring system and the positioning system and determining whether to start the inhibitor injection system and the alarm system after judging the signals;
the alarm system comprises a display screen and an alarm lamp; the display screen is used for displaying the detailed position of a fire disaster; the alarm lamp is used for reminding the worker of keeping alert;
the inhibitor injection system comprises a large steering engine switch and high-concentration CO2Hydrate, injection pipe and injection are automatically opened, and the large steering engine switch is used for triggering high-concentration CO2A hydrate; the high concentration of CO2Use of hydrates for providing CO2Power of gas, water and jet; the injection pipe is used for generating a stopping liquid; the injection electromagnetic switchAnd off for controlling the closing of the injection pipe.
The large steering engine switch further comprises a circuit switch for controlling whether the steering engine works or not.
The large steering engine switch also comprises a large steering engine, a transmission shaft and a steel cone and is used for triggering CO after a fire disaster happens2Hydrate storage device.
The high concentration of CO2The hydrate also comprises a high-strength stainless steel round shell for containing high-concentration CO2A hydrate.
The spray pipe also comprises an intermediate solid inhibitor which is used for being dissolved with water to improve the fire extinguishing performance.
The gear baffle is used for controlling the amount of the fluid sprayed out of the spraying pipe.
The rotating gear is used for being combined with the gear baffle.
The small steering engine is used for controlling the gear baffle to enter and exit the injection pipe (connection relation is not marked in the drawing, and common knowledge is provided).
All the parts related in the utility model are commercial products (known technology), and the creative contribution of the utility model lies in that all the parts are scientifically and reasonably combined together to form a new intelligent fire prevention and extinguishing system for the coal mine goaf, so that the system is effectively used for fire prevention and extinguishing of the coal mine goaf and ensures the personal safety.
The using situation of the utility model is that as the nozzle pipe 25 is provided with a plurality of electromagnetic switches which are all connected with the controller, when the controller 3 receives the temperature and the exact position information transmitted by the temperature monitoring system 1 and the positioner 2, the switch at the corresponding position of the injection pipe 21 is opened, thereby realizing accurate fire extinguishing.
The solid inhibitor 22 is arranged in the middle of the side view of the injection pipe, the fire extinguishing liquid flows between the solid inhibitor 22 and the injection pipe 21, the contact area between the inhibitor and the liquid is increased, and the inhibitor solid and the liquid are fully dissolved to generate the inhibiting liquid. Binding of CO2The system comprises three fire extinguishing modes, namely gas fire prevention and extinguishing, retardant fire prevention and water fire extinguishing, and meanwhile, the temperature condition of the goaf is monitored and early warned in real time by using the emerging technology of the Internet through a controller. The controller receives the temperature sensorAfter the collected data are analyzed and integrated, whether a stopping agent injection system is started or not is confirmed, a fire hazard is monitored and accurately extinguished before the fire hazard occurs, meanwhile, a fire hazard signal is prompted in a form of an alarm lamp, the situation of the fire hazard is prevented from being enlarged, casualties and property loss are avoided, and remarkable economic and social benefits are achieved.
It should be noted that the foregoing embodiments are only examples, which are provided for illustrating specific implementation situations of the present invention and are not intended to limit the scope of the present invention, and all technical solutions made by equivalent and equivalent replacement means which are substantially the same as the present invention belong to the scope of the present invention, that is, the present invention applies specific examples to illustrate the principle and the implementation manner of the present invention, and the above descriptions of the embodiments are only used for helping understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the utility model.
Claims (6)
1. An intelligent fire prevention and extinguishing system for a coal mine goaf comprises a temperature monitoring system (1), a stopping agent injection system (10) and a controller (3), and is characterized in that the temperature monitoring system comprises a temperature sensor (6), a data transmission line (8) and a data processing module (4), wherein the temperature monitoring system (1) and the stopping agent injection system (10) are connected with the data processing module (4) of the controller (3) through the data transmission line (8); the inhibitor injection system (10) comprises a large steering engine (15) and an injection pipe (21), a solid inhibitor (22) is arranged in the injection pipe (21), a downward nozzle pipe (25) is arranged on the injection pipe (21), a first electromagnetic switch (20) is arranged on the nozzle pipe (25), one end of the injection pipe (21) is communicated with a spherical stainless steel frame (19), the other end of the injection pipe is closed, and high-concentration CO is arranged in the spherical stainless steel frame (19)2A hydrate (18), a spherical stainless steel frame (19) is connected with a rotating shaft (16) of a large steering engine (15) through a steel cone (17),the large steering engine (15) is connected with a signal inlet terminal (9) of a data processing module (4) of the controller (3) through a second electromagnetic switch (14), and a signal output terminal (11) of the data processing module (4) is connected with a display (13) arranged at a fire position through a signal wire; the intelligent control system is characterized in that the first electromagnetic switch (20), the second electromagnetic switch (14), the large steering engine (15), the display (13) and the temperature sensor (6) are connected with the controller through a data bus to form an intelligent control system structure.
2. The intelligent fire prevention and extinguishing system for a coal mine goaf as claimed in claim 1, wherein the injection pipe (21) is a hollow long round pipe, and a solid stopping agent (22) is filled in the center.
3. The intelligent fire prevention and extinguishing system for the coal mine goaf according to claim 1, wherein a nozzle pipe (25) communicated with the inside of the pipe is installed on the side wall of the lower part of the injection pipe (21), and a spray head (25-1) is installed on an outlet at the lower part of the nozzle pipe (25).
4. The intelligent fire prevention and extinguishing system for the coal mine goaf as claimed in claim 1, wherein a small steering engine (26) is supported on the nozzle pipe (25), a rotating gear (24) is mounted on a rotating shaft of the small steering engine (26), gear baffles (23) which are meshed with each other are mounted on the rotating gear (24), the gear baffles (23) horizontally extend into the nozzle pipe (25), and the small steering engine (26) is connected with the controller (3) to form a spray amount control structure of the nozzle pipe (25).
5. The intelligent fire prevention and extinguishing system for the coal mine goaf as claimed in claim 1, wherein the temperature monitoring system (1) is provided with a positioner (2) connected with the controller (3) for positioning the spray nozzles (25-1) placed in the monitoring range (7).
6. The intelligent fire prevention and extinguishing system for the coal mine goaf as claimed in claim 1, wherein an alarm lamp (12) is arranged on the display (13), and an alarm (5) is arranged on the controller (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220777103.9U CN216950457U (en) | 2022-04-06 | 2022-04-06 | Intelligent fire prevention and extinguishing system for coal mine goaf |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220777103.9U CN216950457U (en) | 2022-04-06 | 2022-04-06 | Intelligent fire prevention and extinguishing system for coal mine goaf |
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| CN216950457U true CN216950457U (en) | 2022-07-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202220777103.9U Active CN216950457U (en) | 2022-04-06 | 2022-04-06 | Intelligent fire prevention and extinguishing system for coal mine goaf |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117090625A (en) * | 2023-10-17 | 2023-11-21 | 徐州江煤科技有限公司 | Mining automatic alarm fire-extinguishing explosion-proof control system |
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2022
- 2022-04-06 CN CN202220777103.9U patent/CN216950457U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117090625A (en) * | 2023-10-17 | 2023-11-21 | 徐州江煤科技有限公司 | Mining automatic alarm fire-extinguishing explosion-proof control system |
| CN117090625B (en) * | 2023-10-17 | 2023-12-26 | 徐州江煤科技有限公司 | Mining automatic alarm fire-extinguishing explosion-proof control system |
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