A smart monitoring system for local ventilation fans in mines

Abstract

This utility model relates to the field of mine ventilation monitoring systems, and discloses an intelligent mine local ventilation fan monitoring system, including an above-ground section and an underground section. The above-ground section includes a printer, a normal industrial control host, a backup industrial control host, a 2KVh uninterruptible power supply, a surge protector, a mine intrinsically safe network switch, and a mine explosion-proof and intrinsically safe DC regulated power supply. The underground section includes a mine explosion-proof and intrinsically safe fan monitoring substation one, a mine explosion-proof and intrinsically safe fan monitoring substation two, an explosion-proof and intrinsically safe dual-power frequency converter for the ventilation fans, a data detection module, and multiple ventilation fans. The data detection module includes a coal mine low-concentration methane sensor, a mine temperature sensor, a mine carbon monoxide sensor, a mine intrinsically safe vibration sensor, and a mine wind speed sensor. In this utility model, the ventilation fans are intelligently started and stopped according to the actual conditions in the mine, resulting in high efficiency, energy saving, and consistently good ventilation.

Description

Technical Field

[0001] This utility model relates to the field of mine ventilation monitoring systems, and in particular to an intelligent mine local ventilation fan monitoring system. Background Technology

[0002] Mining environments are complex and dangerous, making ventilation systems crucial for ensuring safe production. Traditional mine ventilation systems rely primarily on manual adjustment and periodic inspections, resulting in issues such as inadequate real-time monitoring, difficulty in precisely controlling ventilation effectiveness, high energy consumption, and delayed fault diagnosis. These shortcomings not only increase safety hazards but also negatively impact production efficiency and resource utilization.

[0003] With the advancement of intelligent mine construction, mine ventilation management is gradually developing towards intelligence and automation. Intelligent local ventilation systems, through the introduction of sensors, IoT technology, and data analysis platforms, achieve real-time monitoring and automatic adjustment of ventilation equipment. This system can precisely adjust the operating status of local ventilators, improve ventilation efficiency, ensure air quality at the working face, and effectively save energy.

[0004] However, existing mine ventilation management still has problems: First, traditional mine ventilation systems rely on manual inspection and adjustment, lacking real-time monitoring, resulting in unstable ventilation effects; Second, intelligent monitoring systems use sensors and data acquisition equipment for real-time monitoring, but still suffer from poor system stability and low automation; Third, automatic adjustment and energy-saving control of local ventilation fans have not been fully realized in some systems and urgently need optimization. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an intelligent monitoring system for local ventilation fans in mines.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: an intelligent mine local ventilation fan monitoring system, comprising an above-ground part and an underground part, wherein the above-ground part includes a printer, a normal industrial control host, a backup industrial control host, a 2KVh uninterruptible power supply, a surge protector, a mine intrinsically safe network switch, and a mine explosion-proof and intrinsically safe DC regulated power supply.

[0007] The underground section includes a mine explosion-proof and intrinsically safe ventilation fan monitoring substation 1, a mine explosion-proof and intrinsically safe ventilation fan monitoring substation 2, an explosion-proof and intrinsically safe dual-power frequency converter for ventilation fans, a data detection module, and multiple ventilation fans;

[0008] The data detection module includes a low-concentration methane sensor for coal mines, a temperature sensor for mines, a carbon monoxide sensor for mines, an intrinsically safe vibration sensor for mines, and a wind speed sensor for mines.

[0009] As a further description of the above technical solution:

[0010] The printer, the normal industrial control host, and the standby industrial control host are connected to a 2KVh uninterruptible power supply via power lines. The surge protector is connected to a 2KVh uninterruptible power supply via power lines, and the external power supply for the surge protector is 220VAC.

[0011] As a further description of the above technical solution:

[0012] The printer, the normal industrial control host, and the backup industrial control host are connected to the mining communication cable and the mining intrinsically safe network switch, respectively. The mining intrinsically safe network switch is connected to the mining explosion-proof and intrinsically safe DC regulated power supply through the mining cable. The external power supply of the mining explosion-proof and intrinsically safe DC regulated power supply is AC660V / 127V.

[0013] As a further description of the above technical solution:

[0014] The first and second mining explosion-proof and intrinsically safe ventilation fan monitoring substations are connected via mining communication optical cables and mining intrinsically safe network switches, respectively. The first and second mining explosion-proof and intrinsically safe ventilation fan monitoring substations are respectively connected via mining control cables to a coal mine low-concentration methane sensor, a mining temperature sensor, a mining carbon monoxide sensor, a mining intrinsically safe vibration sensor, and a mining wind speed sensor.

[0015] As a further description of the above technical solution:

[0016] Both the first and second monitoring substations for the explosion-proof and intrinsically safe mine ventilation fans are connected to the explosion-proof and intrinsically safe dual-power frequency converters for the ventilation fans via RS485 communication cables. The explosion-proof and intrinsically safe dual-power frequency converters for the ventilation fans connect to multiple ventilation fans, which are installed in the coal mine roadways.

[0017] As a further description of the above technical solution:

[0018] Both the first and second mining explosion-proof and intrinsically safe fan monitoring substations adopt AC660V / 127V input power.

[0019] This utility model has the following beneficial effects:

[0020] In this invention, the coordinated operation of a low-concentration methane sensor, a mine temperature sensor, a mine carbon monoxide sensor, a mine intrinsically safe vibration sensor, and a mine wind speed sensor enables the detection of methane concentration, mine temperature, carbon monoxide concentration, vibration amplitude, and wind speed within the mine, providing comprehensive environmental monitoring. The data is then transmitted sequentially via a mine control cable to two mine explosion-proof and intrinsically safe fan monitoring substations, a mine intrinsically safe network switch, and a normal industrial control main unit. The system enables timely data uploads to understand the ventilation status within the mine. Based on this data, the ventilation fan is controlled by an explosion-proof and intrinsically safe dual-power frequency converter. Combined with parameter control, the coordinated operation of the ventilation fan achieves energy savings. The interoperability of the equipment enables intelligent control of ventilation within the mine. The use of a 2KVh uninterruptible power supply and a mine-use explosion-proof and intrinsically safe DC regulated power supply provides a stable power supply guarantee for the system, enabling stable long-term operation and ensuring long-term stable operation within the mine. Attached Figure Description

[0021] Figure 1 This is a system diagram of an intelligent mine local ventilation fan monitoring system proposed in this utility model.

[0022] Legend:

[0023] 1. Printer; 2. Standard industrial control host; 3. Backup industrial control host; 4. 2KVh uninterruptible power supply; 5. Surge protector; 6. Mine-use explosion-proof and intrinsically safe DC regulated power supply; 7. Mine-use intrinsically safe network switch; 8. Mine-use explosion-proof and intrinsically safe fan monitoring substation one; 9. Mine-use explosion-proof and intrinsically safe fan monitoring substation two; 10. Coal mine low-concentration methane sensor; 11. Mine-use temperature sensor; 12. Mine-use carbon monoxide sensor; 13. Mine-use intrinsically safe vibration sensor; 14. Mine-use wind speed sensor; 15. Explosion-proof and intrinsically safe dual-power frequency converter for ventilation fans; 16. Ventilation fan. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Reference Figure 1This utility model provides an embodiment of an intelligent mine local ventilation fan monitoring system, comprising an above-ground section and an underground section. The above-ground section includes a printer 1, a normal industrial control host 2, a backup industrial control host 3, a 2KVh uninterruptible power supply 4, a surge protector 5, a mine intrinsically safe network switch 7, and a mine explosion-proof and intrinsically safe DC regulated power supply 6. The printer 1 can print data. The normal industrial control host 2 has built-in big data intelligent computing software, which analyzes the data in the mine based on the content detected by the data detection module, and automatically sends signals to the explosion-proof and intrinsically safe dual-power frequency converter 15 for the ventilation fan, thereby intelligently controlling the start and stop of the ventilation fan 16.

[0026] The underground section includes a mine explosion-proof and intrinsically safe ventilation fan monitoring substation 18, a mine explosion-proof and intrinsically safe ventilation fan monitoring substation 29, a ventilation fan explosion-proof and intrinsically safe dual-power frequency converter 15, a data detection module, and multiple ventilation fans 16. The ventilation fans 16 are installed on the ventilation pipes in the mine according to actual use. Multiple sets of mine explosion-proof and intrinsically safe ventilation fan monitoring substations 18 and 29 can be set up. Data detection modules are installed in the mine as needed to achieve comprehensive data monitoring in the mine.

[0027] The data detection module includes a low-concentration methane sensor 10 for coal mines, a temperature sensor 11 for mines, a carbon monoxide sensor 12 for mines, an intrinsically safe vibration sensor 13 for mines, and a wind speed sensor 14 for mines. These sensors can detect the methane concentration, temperature, carbon monoxide concentration, vibration amplitude, and wind speed in the mine, respectively. Combined with the industrial control host, the module can send a signal to the explosion-proof and intrinsically safe dual-power frequency converter 15 for the ventilation fan, enabling it to control the ventilation fan 16 to operate in coordination.

[0028] Printer 1, normal industrial control host 2, and standby industrial control host 3 are connected to a 2KVh uninterruptible power supply 4 via power lines. Surge protector 5 is connected to the 2KVh uninterruptible power supply 4 via power lines. The external power supply for surge protector 5 is 220VAC to ensure long-term operation.

[0029] Printer 1, normal industrial control host 2, and standby industrial control host 3 are connected to mining intrinsically safe network switch 7 via mining communication cables. Mining intrinsically safe network switch 7 is connected to mining explosion-proof and intrinsically safe DC regulated power supply 6 via mining cables. The external power supply of mining explosion-proof and intrinsically safe DC regulated power supply 6 is AC660V / 127V, which can stably supply power to the equipment and ensure long-term operation.

[0030] The explosion-proof and intrinsically safe ventilation monitoring substation 1 (8) and the explosion-proof and intrinsically safe ventilation monitoring substation 2 (9) are connected to each other via a mining communication optical cable and a mining intrinsically safe network switch 7. The explosion-proof and intrinsically safe ventilation monitoring substation 1 (8) and the explosion-proof and intrinsically safe ventilation monitoring substation 2 (9) are connected to a coal mine low-concentration methane sensor 10, a mine temperature sensor 11, a mine carbon monoxide sensor 12, a mine intrinsically safe vibration sensor 13, and a mine wind speed sensor 14 via mining control cables. The interconnections are stable, and the environmental data in the mine can be transmitted quickly and stably, ensuring the operation of the mine ventilation system.

[0031] Both the explosion-proof and intrinsically safe mine ventilation fan monitoring substation 18 and the explosion-proof and intrinsically safe mine ventilation fan monitoring substation 29 are connected to the ventilation fan explosion-proof and intrinsically safe dual-power frequency converter 15 via RS485 communication cables. The ventilation fan explosion-proof and intrinsically safe dual-power frequency converter 15 connects to multiple ventilation fans 16, which are installed in the coal mine roadway. Through stable data transmission and control, the ventilation fans 16 can be efficiently controlled and started and stopped according to the mine environment, thus achieving energy conservation.

[0032] Both the mine explosion-proof and intrinsically safe ventilation fan monitoring substation 1-8 and the mine explosion-proof and intrinsically safe ventilation fan monitoring substation 2-9 adopt AC660V / 127V input power supply, ensuring stable power supply and long-term stable operation.

[0033] Working Principle: During data detection, the interoperability of the low-concentration methane sensor 10, mine temperature sensor 11, mine carbon monoxide sensor 12, intrinsically safe vibration sensor 13, and mine wind speed sensor 14 in the mine enables the detection of methane concentration, mine temperature, carbon monoxide concentration, vibration amplitude, and wind speed within the mine. The data is transmitted via mine control cables to mine explosion-proof and intrinsically safe fan monitoring substation 1 (8) and mine explosion-proof and intrinsically safe fan monitoring substation 2 (9). Mine explosion-proof and intrinsically safe fan monitoring substation 1 (8) and mine explosion-proof and intrinsically safe fan monitoring substation 2 (9) transmit the data via mine communication optical cables to mine intrinsically safe network switch 7 and normal industrial control host 2. Timely data uploads allow for monitoring of ventilation status within the mine. Based on this data and combined with parameter control, the ventilation fan 16 operates in coordination. The main control unit 2 sends signals to the explosion-proof and intrinsically safe dual-power frequency converter 15 for the ventilation fan. The explosion-proof and intrinsically safe dual-power frequency converter 15 then controls the ventilation fan 16 to operate at different intensities, ensuring stable ventilation throughout the mine. Tailored ventilation solutions achieve energy savings. The coordinated operation of the equipment enables intelligent control of ventilation within the mine. The use of a 2KVh uninterruptible power supply 4 and a mine-use explosion-proof and intrinsically safe DC regulated power supply 6 provides a stable power supply guarantee, ensuring long-term stable operation within the mine.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. An intelligent monitoring system for local ventilation fans in mines, comprising an above-ground section and an underground section, characterized in that: The aboveground components include a printer (1), a normal industrial control host (2), a backup industrial control host (3), a 2KVh uninterruptible power supply (4), a surge protector (5), a mining intrinsically safe network switch (7), and a mining explosion-proof and intrinsically safe DC regulated power supply (6). The underground section includes a mine explosion-proof and intrinsically safe ventilation fan monitoring substation one (8), a mine explosion-proof and intrinsically safe ventilation fan monitoring substation two (9), a ventilation fan explosion-proof and intrinsically safe dual-power frequency converter (15), a data detection module and multiple ventilation fans (16). The data detection module includes a low-concentration methane sensor for coal mines (10), a temperature sensor for mines (11), a carbon monoxide sensor for mines (12), an intrinsically safe vibration sensor for mines (13), and a wind speed sensor for mines (14).

2. The intelligent mine local ventilation fan monitoring system according to claim 1, characterized in that: The printer (1), the normal industrial control host (2), and the standby industrial control host (3) are connected to a 2KVh uninterruptible power supply (4) via power lines. The surge protector (5) is connected to the 2KVh uninterruptible power supply (4) via power lines. The external power supply for the surge protector (5) is 220VAC.

3. The intelligent mine local ventilation fan monitoring system according to claim 2, characterized in that: The printer (1), the normal industrial control host (2), and the backup industrial control host (3) are connected to the mining communication cable and the mining intrinsically safe network switch (7) respectively. The mining intrinsically safe network switch (7) is connected to the mining explosion-proof and intrinsically safe DC regulated power supply (6) through the mining cable. The external power supply of the mining explosion-proof and intrinsically safe DC regulated power supply (6) is AC660V / 127V.

4. The intelligent mine local ventilation fan monitoring system according to claim 1, characterized in that: The first (8) and the second (9) of the explosion-proof and intrinsically safe ventilation fan monitoring substations are connected to each other via a mining communication optical cable and a mining intrinsically safe network switch (7). The first (8) and the second (9) of the explosion-proof and intrinsically safe ventilation fan monitoring substations are connected to a coal mine low-concentration methane sensor (10), a mining temperature sensor (11), a mining carbon monoxide sensor (12), a mining intrinsically safe vibration sensor (13), and a mining wind speed sensor (14) via mining control cables.

5. The intelligent mine local ventilation fan monitoring system according to claim 4, characterized in that: The first (8) and the second (9) monitoring substations for the explosion-proof and intrinsically safe ventilation fan are connected to the explosion-proof and intrinsically safe dual-power frequency converter (15) for ventilation fans via RS485 communication cables. The explosion-proof and intrinsically safe dual-power frequency converter (15) for ventilation fans is connected to multiple ventilation fans (16), and the ventilation fans (16) are installed in the coal mine roadway.

6. The intelligent mine local ventilation fan monitoring system according to claim 4, characterized in that: Both the mining explosion-proof and intrinsically safe fan monitoring substation one (8) and the mining explosion-proof and intrinsically safe fan monitoring substation two (9) use AC660V / 127V input power.

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