Automatic fire extinguishing device for underground mining area

Abstract

The utility model relates to the technical field of mining area automatic fire extinguishing, and discloses an underground mining area automatic fire extinguishing device which comprises a control host, and the two sides of the host are divided into a first area and a second area; a flame sensor, an infrared thermal imager, a temperature sensor I, a smoke sensor and a temperature sensor II are arranged in each area, and all the sensors are connected with a control host; in addition, the control host is connected with a plurality of cylinder valve groups, the output ends of the cylinder valve groups are connected with a medicament pipeline, and a release switch is arranged on the pipeline. According to the device, fire signals are detected in all directions through the flame sensor and the infrared thermal imager, and sensitivity and accuracy are improved; through multi-parameter monitoring of a temperature sensor, a smoke sensor and the like, the fire early warning reliability is enhanced; and the fire extinguishing device is independently controlled, so that the fire extinguishing efficiency is improved. And the remote linkage function realizes remote monitoring and operation, so that the fire extinguishing timeliness and effectiveness are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic fire extinguishing in mining areas, in particular to an automatic fire extinguishing device for underground mining areas. Background Art

[0002] The environment in coal mines is quite complex. In particular, during the mining process, flammable gases such as methane are released. In addition, there are a large number of coal dust particles underground, which can easily combine with flammable gases to form explosive mixtures. These mixtures may cause explosions and fires due to factors such as static electricity, friction, and short circuits, thus posing a serious threat to personnel and coal mining safety.

[0003] In order to reduce the potential losses caused by fire, fire extinguishing equipment in coal mines must have multiple functional characteristics, including multi-directional detection, sensitive response, high reliability and comprehensive protection. However, traditional regional fire extinguishing equipment in coal mines has certain limitations in design and function. They usually rely only on temperature sensors or smoke sensors for fire detection, and lack advanced detection equipment such as flame detectors and infrared thermal imagers. This single detection method may lead to missing the best time to extinguish the fire in the early stage of the fire because the temperature has not risen significantly or the smoke concentration is low, thus causing the fire to spread rapidly.

[0004] In addition, traditional underground coal mine area fire extinguishing devices also have shortcomings in terms of control methods. They usually do not have a partition control function, making it impossible for adjacent caverns to be managed uniformly using the same control host. This design not only increases the equipment cost of the fire extinguishing device, but may also reduce the efficiency of fire extinguishing. At the same time, due to the lack of remote linkage function, traditional fire extinguishing devices cannot realize functions such as remote alarm, remote startup and remote feedback. This means that when a fire occurs, personnel may not be able to detect the fire in time and take corresponding treatment measures.

[0005] Finally, traditional underground coal mine fire extinguishing devices usually lack pressure sensors. This means that the system cannot monitor the operating status of the fire extinguishing system and the release of the fire extinguishing agent in real time. Once the fire extinguishing system fails or the release of the fire extinguishing agent is abnormal, the system will not be able to detect and take corresponding countermeasures in time, thereby increasing the risk of fire.

[0006] Therefore, based on the above technical problems, it is necessary for technicians in this field to develop an automatic fire extinguishing device for underground mining areas. Utility Model Content

[0007] The utility model aims to provide an automatic fire extinguishing device for underground mining areas to solve the problems raised in the above-mentioned background technology.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] A technical solution for an automatic fire extinguishing device for underground mining areas, comprising a control host, wherein a first zone and a second zone are respectively arranged on both sides of the control host, and flame sensors and infrared thermal imagers are arranged in the first zone and the second zone and connected to the control host, temperature sensor one, smoke sensor and temperature sensor two are also arranged in the first zone and the second zone, and the temperature sensor one, smoke sensor and temperature sensor two are connected to the control host, the control host is connected to multiple groups of bottle valve groups, and the output end of the bottle valve group is connected to a chemical pipeline, a release switch is arranged on the chemical pipeline, the chemical pipeline extends to the first zone and the second zone, and a plurality of chemical nozzles are arranged on the chemical pipelines in the first zone and the second zone.

[0010] As a preferred technical solution, an interface component is provided on the control host, and the interface component includes a zone one linkage start input port, a zone one linkage feedback output port, a display screen interface, a power input port, a network serial port, a zone two linkage start input port, and a zone two linkage feedback output port, and an audible and visual alarm is connected to the control host.

[0011] As a preferred technical solution, cable-type temperature-sensitive fire detectors are provided in the first zone and the second zone, and the cable-type temperature-sensitive fire detectors are connected to a control host.

[0012] As a preferred technical solution, a manual starter and a manual-automatic switching switch are also provided in the first zone and the second zone, and the manual starter and the manual-automatic switching switch are connected to a control host, and a reset switch is provided on the control host.

[0013] As a preferred technical solution, the bottle valve group includes a medicine bottle, a pressure gauge is provided on the medicine bottle, and a pressure switch is provided on the side adjacent to the pressure gauge, an emergency manual ball valve is provided on the medicine bottle, the medicine pipeline is connected to the medicine bottle, and an electric ball valve is provided at the interface.

[0014] As a preferred technical solution, a clamp is provided outside the medicine bottle for fixing the medicine bottle.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] The utility model is an automatic fire extinguishing device for underground mining areas. The flame sensor and infrared thermal imager provided therein can detect fire signals in multiple directions and angles, thereby improving the sensitivity and accuracy of fire detection. At the same time, the provision of temperature sensor 1, smoke sensor and temperature sensor 2 can monitor the environmental parameters underground in real time, further enhancing the reliability of fire warning. By controlling the host to process and analyze the data of each sensor, a fire can be discovered in time and corresponding fire extinguishing measures can be taken, thereby effectively reducing the potential losses caused by the fire. The utility model also has a partition control function, which can realize independent control of the fire extinguishing devices in zone 1 and zone 2, thereby improving the fire extinguishing efficiency. At the same time, the realization of the remote linkage function allows personnel to monitor and operate the fire extinguishing device remotely, further improving the timeliness and effectiveness of fire extinguishing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of an automatic fire extinguishing device for underground mining areas;

[0018] Figure 2 This is a schematic diagram of the structure of a cylinder valve group of an automatic fire extinguishing device for underground mining areas;

[0019] Figure 3 The present invention is a schematic diagram of the process principle and structure of an automatic fire extinguishing device for underground mining areas.

[0020] In the accompanying drawings: 1. control host; 2. zone one linkage start input port; 3. zone one linkage feedback output port; 4. display screen interface; 5. power input terminal; 6. network serial port; 7. zone two linkage start input port; 8. zone two linkage feedback output port; 9. sound and light alarm; 10. flame sensor; 11. infrared thermal imager; 12. reagent pipeline; 13. release switch; 14. temperature sensor one; 15. smoke sensor; 16. temperature sensor two; 17. cable-type temperature-sensing fire detector; 18. reagent nozzle; 19. bottle valve group; 1901. electric ball valve; 1902. pressure switch; 1903. emergency manual ball valve; 1904. pressure gauge; 1905. clamp; 1906. reagent bottle; 20. manual starter; 21. manual-automatic switching switch; 22. reset switch. DETAILED DESCRIPTION

[0021] The features and exemplary embodiments of various aspects of the present invention will be described in detail below. In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. For those skilled in the art, the present invention can be implemented without the need for some of these specific details. The following description of the embodiments is only intended to provide a better understanding of the present invention by illustrating examples of the present invention.

[0022] like Figure 1 , Figure 2 and Figure 3As shown, the utility model provides a technical solution for an underground mine area automatic fire extinguishing device: comprising a control host 1, specifically, the control host 1 is a ZFMD127-Z mine explosion-proof and intrinsically safe area automatic fire extinguishing electric control device host, adopts a PLC programmable controller as a control core, is used to collect information from sensors, and issues fire extinguishing and sound and light alarm control commands in abnormal situations, and one zone and two zones are respectively arranged on both sides of the control host 1, and an interface component is arranged on the control host 1, and the interface component comprises a zone one linkage start input port 2 (when connected to a remote control system, the fire extinguishing device can be started by remotely sending a linkage start signal to the device host), a zone one linkage feedback output port 3 (when connected to a remote control system, when the fire extinguishing device is triggered, a linkage feedback signal can be remotely sent to the remote control system), a display screen interface 4 (used to connect to a display screen, having the functions of displaying status indication and alarm indication, having the functions of recording working status and alarm, and being able to read and delete event records), a power input terminal 5 (specifically, an AC127V input terminal of an underground mine power supply), and a network serial port 6 (specifically, the upper computer can communicate with the control host through this port). PLC communication), two-zone linkage start input port 7 (when connected to the remote control system, the fire extinguishing device can be started by remotely sending a linkage start signal to the device host), two-zone linkage feedback output port 8 (when connected to the remote control system, when the fire extinguishing device is triggered, a linkage feedback signal can be remotely sent to the remote control system). The control host 1 is connected to an audible and visual alarm 9, specifically a KXB12 mining intrinsically safe voice audible and visual alarm: the alarm sound level intensity is ≥85dB(A), the optical signal is clearly visible at 20 meters in the dark, and the DC regulated power supply provides this A DC12V power supply is installed to power it. Cable-type temperature-sensing fire detectors 17 are installed in Zone 1 and Zone 2, and the cable-type temperature-sensing fire detectors 17 are connected to the control host 1. When the ambient temperature reaches the detection temperature of the temperature-sensing cable, the temperature-sensing cable inputs a switch signal to the control host. Flame sensors 10 and infrared thermal imagers 11 are installed in Zone 1 and Zone 2, and are connected to the control host 1. Specifically, the flame sensor 10 is a GHZ5 (A) intrinsically safe flame sensor for mining: the photoelectric detector in the flame sensor converts the received light signal into an electrical signal.When a flame burns, it will generate light of specific wavelengths including visible light, infrared light and ultraviolet light. The flame sensor uses these radiations to detect the flame. Specifically, the infrared thermal imager 11 is a YRH500 intrinsically safe infrared thermal imager for mining: when it detects that the external temperature reaches the alarm action temperature, it outputs a signal to the control host 1. Temperature sensor 14, smoke sensor 15 and temperature sensor 2 16 are also provided in zone 1 and zone 2, and the temperature sensor 14, smoke sensor 15 and temperature sensor 2 16 are connected to the control host 1. Specifically, temperature sensor 14 and temperature sensor 2 16 are GWD100 intrinsically safe temperature sensors for mining, and smoke sensor 15 is a temperature sensor 16 for detecting the alarm action temperature. Sensor 15 is a GQQ5 intrinsically safe smoke sensor for mining. The control host 1 is connected to multiple groups of bottle valve groups 19, and the output end of the bottle valve group 19 is connected to the agent pipeline 12. The bottle valve group 19 includes an agent bottle 1906. A pressure gauge 1904 is provided on the agent bottle 1906. The driving gas pressure in the agent bottle can be checked by the pressure gauge, and a pressure switch 1902 is provided on the adjacent side of the pressure gauge 1904. Specifically, the pressure switch 1902 is a KHY1.2 intrinsically safe pressure switch for mining: it is installed on the fire extinguishing agent bottle valve group of the fire extinguishing mechanism. When the internal pressure of the bottle group is lower than 1.2MPa, the switch is closed and the switch quantity signal is fed back to the control host. The agent bottle 1906 An emergency manual ball valve 1903 is arranged on the top, the reagent pipeline 12 is connected to the reagent bottle 1906, and an electric ball valve 1901 is arranged at the interface. Specifically, the electric ball valve 1901 is a DFH / 7 mining intrinsically safe electric ball valve. A clamp 1905 is arranged outside the reagent bottle 1906 to fix the reagent bottle 1906. A release switch 13 is arranged on the reagent pipeline 12. Specifically, the release switch 13 is a KHY0.4 mining intrinsically safe pressure switch: installed on the reagent pipeline, when the reagent release pipeline has reagent release and the internal pressure of the pipeline reaches 0.4MPa, the switch is closed and the signal is fed back to the control host. The reagent pipeline 12 extends to the first and second zones and is located in the first zone. A plurality of agent nozzles 18 are arranged on the agent pipeline 12 in the first and second zones, and a manual starter 20 and a manual-automatic switching switch 21 are also arranged in the first and second zones, and the manual starter 20 and the manual-automatic switching switch 21 are connected to the control host 1. Specifically, the manual starter 20 is a ZEB-K (B) intrinsically safe circuit push button switch: it realizes the manual start function, and the manual-automatic switching switch 21 is a ZEB-K (B) intrinsically safe circuit push button switch: it realizes the switching between manual and automatic functions, and the control host 1 is provided with a reset switch 22. Specifically, the reset switch 22 is a ZEB-K (B) intrinsically safe circuit push button switch: it realizes the function of resetting the device after the device is started.

[0023] In this embodiment, when in use, the control host 1 monitors the environmental changes in the first and second zones in real time by receiving signals from the cable-type temperature-sensing fire detector 17, the flame sensor 10, the infrared thermal imager 11, the temperature sensor 14, the smoke sensor 15, and the temperature sensor 2 16. Once an abnormality is found, such as an increase in ambient temperature, the appearance of flames, an increase in infrared radiation, an increase in smoke concentration, etc., the control host 1 will immediately make a judgment according to the preset logic, and if necessary, start the electric ball valve 1901 installed on the bottle valve group 19 to release the agent to the area for fire extinguishing or temperature reduction protection.

[0024] In addition, when the pressure switch 1902 detects that the driving gas pressure in the agent bottle 1906 is lower than the set value, it will send a signal to the control host 1 to remind the timely replacement or replenishment of the agent. Similarly, when the release switch 13 detects the pressure change in the agent pipeline 12, it will also feed back to the control host 1 so as to monitor and record the fire extinguishing process in real time.

[0025] In an emergency, on-site personnel or remote personnel can remotely start the device through the manual starter 20, or switch to manual mode through the manual-automatic switch 21, and directly operate the emergency manual ball valve 1903 to extinguish the fire. At the same time, the sound and light alarm 9 will emit sound and light alarms during the fire extinguishing process to remind personnel to pay attention to safety.

[0026] Finally, when the fire is extinguished or the abnormal situation is resolved, the device can be reset through the reset switch 22 for next use. The design of the entire device fully considers safety and reliability, and can detect and handle abnormal situations such as fire in the shortest time, ensuring the safety of personnel and the normal operation of equipment.

[0027] The working principle and use process of this utility model:

[0028] Automatic Start

[0029] Various sensors installed in the protection area conduct real-time detection of temperature, flame, and smoke values. When a fire occurs at the protection location or there is abnormally high temperature or smoke before the fire occurs, the high temperature, abnormally high temperature, smoke, and light waves generated by the flame act on the detectors (temperature sensor 14, temperature sensor 2 16, smoke sensor 15, infrared thermal imager 11, flame sensor 10) in the protection location. When the action value of any one or any one of the detectors is reached, the sound and light alarm 9 installed in the protection area will send out a sound and light alarm to remind the on-site staff that the temperature, flame, and smoke in the area are abnormal. At this time, the control host 1 sends out an alarm signal (outputs a feedback alarm signal to the upper computer), starts (delay can be set) to start the electric ball valve 1901 installed on the medicine bottle 1906, and starts to release medicine to the area for fire extinguishing or temperature reduction protection. At the same time, the control host starts the feedback signal to the upper computer output device.

[0030] Manual Start

[0031] When the protection area is hot, has flames and smoke, and reaches the set parameter value of any one or any type of detector, the sound and light alarm 9 installed in the protection area will send out a sound and light alarm to remind the on-site staff that the temperature, flame, and smoke in the area are abnormal. When the on-site staff finds an abnormal situation, they can manually press the manual starter 20 to start the electric ball valve 1901 installed on the fire extinguisher bottle group to release the agent to the area for fire extinguishing or temperature reduction protection, and at the same time control the host 1 to start the feedback signal to the upper computer output device.

[0032] Linkage start

[0033] When the temperature in the protection zone is abnormally high, there is flame or smoke, and the set parameter value of any one or any type of detector is reached, the sound and light alarm 9 installed in the protection zone will sound an sound and light alarm, and the control host 1 will send out a warning signal to inform the remote personnel. If the remote personnel finds any abnormal situation through on-site monitoring, they can remotely start the electric ball valve 1901 installed on the bottle valve group 19 to release the agent to the area for fire extinguishing or temperature reduction protection.

[0034] Mechanical emergency start

[0035] When automatic, manual, or linkage start-up cannot start the device to release the agent or other emergency start-up is required to release the agent, the safety of the emergency manual ball valve 1903 should be unplugged, and the emergency manual ball valve 1903 should be opened manually to release the agent to the area.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

[0037] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0038] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0039] According to the embodiments of the present invention as described above, these embodiments do not describe all the details in detail, nor do they limit the present invention to specific embodiments. Obviously, many modifications and changes can be made based on the above description. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that technicians in the relevant technical field can make good use of the present invention and the modified use based on the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An automatic fire extinguishing device for underground mining areas, characterized in that: The invention comprises a control host (1), wherein a first zone and a second zone are respectively arranged on both sides of the control host (1), and flame sensors (10) and infrared thermal imagers (11) are arranged in the first zone and the second zone and are connected to the control host (1), and temperature sensors (14), smoke sensors (15) and temperature sensors (16) are also arranged in the first zone and the second zone, and the temperature sensors (14), smoke sensors (15) and temperature sensors (16) are connected to the control host (1), the control host (1) is connected to a plurality of groups of bottle valve groups (19), and the output end of the bottle valve group (19) is connected to a medicine pipeline (12), a release switch (13) is arranged on the medicine pipeline (12), the medicine pipeline (12) extends to the first zone and the second zone, and a plurality of medicine nozzles (18) are arranged on the medicine pipeline (12) in the first zone and the second zone.

2. The automatic fire extinguishing device for underground mine area according to claim 1 is characterized by: The control host (1) is provided with an interface component, which includes a first zone linkage start input port (2), a first zone linkage feedback output port (3), a display screen interface (4), a power input port (5), a network serial port (6), a second zone linkage start input port (7), and a second zone linkage feedback output port (8). The control host (1) is connected to an audible and visual alarm (9).

3. The automatic fire extinguishing device for underground mine area according to claim 1 is characterized by: Cable-type heat-sensing fire detectors (17) are arranged in the first zone and the second zone, and the cable-type heat-sensing fire detectors (17) are connected to the control host (1).

4. The automatic fire extinguishing device for underground mine area according to claim 1 is characterized by: A manual starter (20) and a manual-automatic switching switch (21) are also provided in the first zone and the second zone, and the manual starter (20) and the manual-automatic switching switch (21) are connected to the control host (1), and a reset switch (22) is provided on the control host (1).

5. The automatic fire extinguishing device for underground mine area according to claim 1 is characterized by: The bottle valve group (19) includes a medicine bottle (1906), a pressure gauge (1904) is provided on the medicine bottle (1906), and a pressure switch (1902) is provided on the side adjacent to the pressure gauge (1904), an emergency manual ball valve (1903) is provided on the medicine bottle (1906), the medicine pipeline (12) is connected to the medicine bottle (1906), and an electric ball valve (1901) is provided at the interface.

6. The automatic fire extinguishing device for underground mine area according to claim 5 is characterized by: The medicine bottle (1906) is provided with a clamp (1905) outside for fixing the medicine bottle (1906).

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