Mine fire extinguishing system and mine system
By introducing temperature detection and controllers into the mine fire protection system to control water supply and drainage devices, the problem of fire pipe blockage in low-temperature environments has been solved, enabling effective fire extinguishing control at different temperatures and ensuring timely water supply during a fire.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NAT ENERGY COAL & COKING GRP CO LTD
- Filing Date
- 2025-05-19
- Publication Date
- 2026-04-28
AI Technical Summary
Existing mine fire protection systems are prone to blockage in low-temperature environments, making it impossible to extinguish fires in a timely manner, thus expanding the fire's reach and causing serious losses.
A mine fire protection system was designed. The system uses a controller to control the opening and closing of water supply and drainage devices according to the instructions of temperature detection devices and fire alarm systems. This ensures rapid water supply for fire extinguishing during a fire and drains the water from the fire pipes at low temperatures to prevent freezing.
It enables effective control of water flow in fire-fighting pipelines under different temperature conditions, preventing blockages and ensuring timely water supply for fire suppression in case of fire, thereby reducing losses.
Smart Images
Figure CN224166781U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coal mining technology, and in particular to a mine fire protection system and a mine system. Background Technology
[0002] With the increasing frequency of fire accidents, the role of fire hydrants is becoming more and more important. It is crucial that fire hydrants function properly during a fire. Currently, existing mine fire protection systems are mainly wet fire protection systems. The fire pipes are normally filled with water and remain stagnant. When a fire occurs, as the ambient temperature rises, the fire-fighting temperature sensing element will burst or melt and detach at a certain temperature, at which point the water in the fire pipes will spray out from the sprinklers to extinguish the fire. However, wet fire protection systems are suitable for locations with ambient temperatures not lower than 4℃ and not higher than 70℃. In some areas, the temperature difference between seasons is large, and the winter temperature is too low, causing the water in the fire pipes to freeze, resulting in pipe blockage. When a fire occurs, the fire pipes cannot supply water in time, which may lead to the spread of the fire and cause serious losses. Utility Model Content
[0003] This utility model proposes a mine fire protection system that can quickly discharge water in the event of a fire and drain water from the fire pipes when the temperature is low, preventing the water in the fire pipes from freezing and causing blockages and untimely water discharge.
[0004] The present invention provides a mine fire protection system, including a fire pipeline extending along the mine roadway, a water supply device for supplying water to the fire pipeline, a drainage device for draining water from the fire pipeline, a temperature detection device for detecting the ambient temperature of the fire pipeline, and a controller connected to a fire alarm system.
[0005] The controller is connected to the water supply device, the drainage device and the temperature detection device respectively. The controller controls the opening or closing of the water supply device and the drainage device according to the ambient temperature and / or the instructions of the fire alarm system.
[0006] Furthermore, the water supply device includes a water supply pump and a water supply valve assembly, the water supply valve assembly including an automatic water supply valve;
[0007] The water supply pump is connected to the fire-fighting pipeline through the automatic water supply valve. The controller is connected to both the water supply pump and the automatic water supply valve. The controller controls the water supply pump and the automatic water supply valve to open or close according to the ambient temperature and / or the command.
[0008] Furthermore, the water supply valve assembly also includes a manual water supply valve, through which the water supply pump is connected to the fire-fighting pipeline.
[0009] Furthermore, the drainage device includes a drainage pump and a drainage valve assembly. The drainage valve assembly includes at least one automatic drainage valve. The drainage pump is connected to the fire-fighting pipeline through the automatic drainage valve. The controller is connected to both the drainage pump and the automatic drainage valve. The controller controls the opening or closing of the drainage pump and the automatic drainage valve according to the ambient temperature.
[0010] Furthermore, the drain valve assembly also includes at least one manual drain valve, through which the drain pump is connected to the fire hydrant.
[0011] Furthermore, the temperature detection device includes at least one temperature sensor connected to the controller, and the temperature sensor is disposed around the fire duct.
[0012] Furthermore, the fire-fighting pipeline is equipped with a heat insulation device, and the controller controls the opening or closing of the heat insulation device according to the ambient temperature.
[0013] Furthermore, the heat preservation device includes an electric heat tracing cable, which is wrapped around the fire-fighting pipe, and the controller controls the opening or closing of the electric heat tracing cable according to the ambient temperature.
[0014] Furthermore, it also includes an expansion valve well for accommodating the controller and the fire-fighting pipeline, with concrete poured at the bottom of the expansion valve well.
[0015] The present invention also provides a mine system, including a fire alarm system and a mine fire protection system as described above. The fire alarm system is connected to the controller of the mine fire protection system, and the controller controls the water supply device to open or close according to the instructions received from the fire alarm system.
[0016] Compared with the prior art, the technical solution of this utility model has the following beneficial effects:
[0017] This invention uses a controller to control the water supply and drainage devices based on the ambient temperature detected by the temperature detection device and / or the instructions of the fire alarm system. When a fire occurs, the controller controls the water supply device to open, filling the fire pipeline with water for fire extinguishing. When the ambient temperature is too low and there is no fire, the controller controls the drainage device to drain the water from the fire pipeline to prevent the water in the fire pipeline from freezing and to avoid blockage of the fire pipeline. Attached Figure Description
[0018] The disclosure of this utility model will become more readily understood by referring to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings:
[0019] Figure 1 This is a structural schematic diagram of a mine fire protection system provided in one embodiment of the present invention;
[0020] Figure 2 yes Figure 1 A partial structural diagram;
[0021] Figure 3 This is a schematic diagram of the structure of a mine system provided in one embodiment of the present invention; Detailed Implementation
[0022] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.
[0023] like Figures 1-2 As shown, an embodiment of the present invention provides a mine fire protection system, including a fire pipeline 11 extending along the mine roadway, a water supply device 12 for supplying water to the fire pipeline 11, a drainage device 13 for draining water from the fire pipeline 11, a temperature detection device 14 for detecting the ambient temperature of the fire pipeline 11, and a controller 15 connected to a fire alarm system.
[0024] The controller 15 is connected to the water supply device 12, the drainage device 13 and the temperature detection device 14 respectively. The controller 15 controls the opening or closing of the water supply device 12 and the drainage device 13 according to the ambient temperature and / or the instructions of the fire alarm system.
[0025] The mine fire protection system in this embodiment mainly includes a fire-fighting pipeline 11, a water supply device 12, a drainage device 13, a temperature detection device 14, and a controller 15. The fire-fighting pipeline 11 extends along the mine roadway, as shown below. Figure 2 As shown, the fire hydrant 11 includes an inlet fire hydrant 111 and an underground fire hydrant 112. The controller 15 is connected to the water supply device 12, the drainage device 13, and the temperature detection device 14. When a fire occurs, the controller 15 controls the water supply device 12 to supply water to the fire hydrant 11 for fire extinguishing. The temperature detection device 14 is used to detect the ambient temperature of the fire hydrant 11. When the ambient temperature is too low (e.g., below or equal to 4°C), especially in winter, the controller 15 controls the drainage device 13 to drain the water from the fire hydrant 11. When the ambient temperature is high (e.g., above 4°C), such as in spring, summer, and autumn, the controller 15 controls the water supply device 12 to fill the fire hydrant 11 with water, so that water can be quickly supplied to extinguish the fire.
[0026] This invention uses a controller to control the water supply and drainage devices based on the ambient temperature detected by the temperature detection device and / or the instructions of the fire alarm system. When a fire occurs, the controller controls the water supply device to open, filling the fire pipeline with water for fire extinguishing. When the ambient temperature is too low and there is no fire, the controller controls the drainage device to drain the water from the fire pipeline to prevent the water in the fire pipeline from freezing and to avoid blockage of the fire pipeline.
[0027] In one embodiment, in order to better supply water to the mine fire protection system, the water supply device 12 includes a water supply pump 121 and a water supply valve assembly, the water supply valve assembly including an automatic water supply valve 122;
[0028] The water supply pump 121 is connected to the fire pipeline 11 through the automatic water supply valve 122. The controller 15 is connected to the water supply pump 121 and the automatic water supply valve 122 respectively. The controller 15 controls the water supply pump 121 and the automatic water supply valve 122 to open or close according to the ambient temperature and / or instructions.
[0029] Water pump 121 is connected to automatic water supply valve 122. In the event of a fire, controller 15 controls automatic water supply valve 122 to open, and water pump 121 supplies water. Temperature detection device 14 detects the ambient temperature of fire pipeline 11 and sends the ambient temperature to controller 15. Controller 15 controls automatic water supply valve 122 to open or close according to the ambient temperature. When the ambient temperature is high, controller 15 controls automatic water supply valve 122 to open, filling fire pipeline 11 with water, so that fire pipeline 7 can quickly discharge water to extinguish the fire in the event of a fire.
[0030] Preferably, the automatic water supply valve 122 can be an electric valve or a solenoid valve.
[0031] In one embodiment, the water supply valve assembly also includes a manual water supply valve 123, through which the water supply pump 121 is connected to the fire pipe 11.
[0032] Automatic water supply valve 122 and manual water supply valve 123 are connected in parallel. When automatic water supply valve 122 malfunctions, controller 15 cannot supply water by controlling automatic water supply valve 122 to open. Instead, manual operation can be used to manually open manual water supply valve 123, and water supply pump 121 will supply water.
[0033] In one embodiment, in order to better drain the water in the fire pipe 11, the drainage device 13 includes a drainage pump 131 and a drainage valve assembly. The drainage valve assembly includes at least one automatic drainage valve 132. The drainage pump 131 is connected to the fire pipe 11 through the automatic drainage valve 132. The controller 15 is connected to the drainage pump 131 and the automatic drainage valve 132 respectively. The controller 15 controls the opening or closing of the drainage pump 131 and the automatic drainage valve 132 according to the ambient temperature.
[0034] The drainage pump 131 can be connected to the controller 15 via a limit switch. The controller 15 controls the start or stop of the drainage pump 131 through the limit switch. The controller 15 controls the automatic drainage valve 132 based on the received ambient temperature. When the ambient temperature is too low, the controller 15 controls the automatic drainage valve 132 to open and controls the limit switch to start the drainage pump 131, emptying the water in the fire hydrant 11 to prevent the water in the fire hydrant 11 from freezing and causing blockage, thus preventing water from passing through the fire hydrant 11 to extinguish the fire in case of fire. When the ambient temperature is high, the controller 15 controls the automatic drainage valve 132 to close and controls the limit switch to stop the drainage pump 131 from working.
[0035] Preferably, the automatic drain valve 132 can be an electric valve or a solenoid valve.
[0036] The number of automatic drain valves 132 can be set according to requirements. The preferred number of automatic drain valves 132 is 8. The 8 automatic drain valves 132 are evenly distributed and can quickly drain the water in the fire pipe 11.
[0037] In one embodiment, the drain valve assembly further includes at least one manual drain valve 133, through which the drain pump 131 is connected to the fire pipe 11.
[0038] Automatic drain valve 132 and manual drain valve 133 are connected in parallel. When automatic drain valve 132 malfunctions, controller 15 cannot supply water by controlling automatic drain valve 132 to open. Instead, manual drain valve 133 can be opened manually, and drain pump 131 will drain the water.
[0039] In one embodiment, to better detect ambient temperature, the temperature detection device 14 includes at least one temperature sensor 141, which is connected to the controller 15. The temperature sensor 141 is installed around the fire hydrant 11 and is used to detect the ambient temperature of the fire hydrant 11. When the ambient temperature is too low, the controller 15 controls the drainage device 13 to drain the water from the fire hydrant 11. When the ambient temperature is too high, the controller 15 controls the automatic water supply valve 122 to open and fill the fire hydrant 11 with water, so that water can be discharged quickly in the event of a fire.
[0040] Preferably, in order to more accurately control the water supply device 12 and the drainage device 13, the number of temperature sensors 141 is 8. The 8 temperature sensors 141 are evenly arranged around the fire pipe 11. The temperature sensors 141 prevent the ambient temperature from being too high or too low in one place, thus avoiding incorrect control of the water supply device 12 and the drainage device 13.
[0041] In one embodiment, the drainage device 13 is provided with a heat preservation device 16 on the fire pipe 11, and the controller 15 controls the opening or closing of the heat preservation device 16 according to the ambient temperature.
[0042] The insulation device 16 is laid on the fire pipe 11. When the ambient temperature is too low, the controller 15 controls the insulation device 16 to open, and the insulation device 16 insulates the fire pipe 11 to prevent the fire pipe 11 from freezing and cracking due to low temperature.
[0043] In one embodiment, in order to better insulate the fire pipe 11, the insulation device 16 includes an electric heating tape wrapped around the fire pipe 11, and the controller 15 controls the opening or closing of the electric heating tape according to the ambient temperature.
[0044] In one embodiment, to better accommodate the various devices of the mine fire protection system, an expansion valve well is also included to accommodate the controller 15 and the fire pipe 11. The bottom of the expansion valve well is filled with concrete to expand the original narrow valve well into an expansion valve well with a height of 2 meters and an area of 6 square meters. The bottom of the well is filled with concrete as the ground. The valve well has a solid overall structure and a spacious space, which provides convenience for subsequent repair of the equipment in the well. The expansion valve well has a heat preservation function. The expansion valve well is opened from the ground and has concrete as the ground. It is kept in a sealed state at all times, so it will play a certain heat preservation role for the fire pipe 11.
[0045] like Figure 3 As shown, the technical solution of this utility model also provides a mine system, including a fire alarm system 20 and a mine fire protection system 10 as described above. The fire alarm system 20 is connected to the controller 15 of the mine fire protection system 10. The controller 15 controls the water supply device 12 according to the instructions received from the fire alarm system 20. When a fire occurs, the fire alarm system 20 detects the fire and sends an alarm prompt, and at the same time sends an instruction to the controller 15 to supply water to the fire pipeline 11. Upon receiving the instruction from the fire alarm system 20, the controller 15 controls the automatic water supply valve 122 of the water supply device 12 to open, and the water supply pump 121 quickly supplies water to cooperate with the fire pipeline 11 for fire extinguishing.
[0046] In the description of this application, it should be noted that the terms "upper", "lower", "inner", "side", etc., indicate the orientation or positional relationship based on the orientation or positional relationship in the working state of this application, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0047] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "set up," "connect," and "connect" should be interpreted broadly. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.
[0048] The present application has been described above with reference to preferred embodiments; however, these embodiments are merely exemplary and illustrative. Various substitutions and modifications can be made to the present application based on these embodiments, all of which fall within the protection scope of the present application.
Claims
1. A mine fire protection system, characterized in that, It includes a fire-fighting pipeline extending along the mine roadway, a water supply device for supplying water to the fire-fighting pipeline, a drainage device for draining water from the fire-fighting pipeline, a temperature detection device for detecting the ambient temperature of the fire-fighting pipeline, and a controller connected to a fire alarm system. The controller is connected to the water supply device, the drainage device and the temperature detection device respectively. The controller controls the opening or closing of the water supply device and the drainage device according to the ambient temperature and / or the instructions of the fire alarm system.
2. The mine fire protection system according to claim 1, characterized in that, The water supply device includes a water supply pump and a water supply valve assembly, the water supply valve assembly including an automatic water supply valve; The water supply pump is connected to the fire-fighting pipeline through the automatic water supply valve. The controller is connected to both the water supply pump and the automatic water supply valve. The controller controls the water supply pump and the automatic water supply valve to open or close according to the ambient temperature and / or the command.
3. The mine fire protection system according to claim 2, characterized in that, The water supply valve assembly also includes a manual water supply valve, through which the water supply pump is connected to the fire-fighting pipeline.
4. The mine fire protection system according to claim 1, characterized in that, The drainage device includes a drainage pump and a drainage valve assembly. The drainage valve assembly includes at least one automatic drainage valve. The drainage pump is connected to the fire-fighting pipeline through the automatic drainage valve. The controller is connected to both the drainage pump and the automatic drainage valve. The controller controls the opening or closing of the drainage pump and the automatic drainage valve according to the ambient temperature.
5. The mine fire protection system according to claim 4, characterized in that, The drain valve assembly also includes at least one manual drain valve, through which the drain pump is connected to the fire hydrant.
6. The mine fire protection system according to claim 1, characterized in that, The temperature detection device includes at least one temperature sensor, which is connected to the controller and is positioned around the fire duct.
7. The mine fire protection system according to claim 1, characterized in that, The fire-fighting pipeline is equipped with a heat preservation device, and the controller controls the opening or closing of the heat preservation device according to the ambient temperature.
8. The mine fire protection system according to claim 7, characterized in that, The heat preservation device includes an electric heat tracing cable, which is wrapped around the fire-fighting pipe. The controller controls the opening or closing of the electric heat tracing cable according to the ambient temperature.
9. The mine fire protection system according to any one of claims 1-8, characterized in that, It also includes an expansion valve well for accommodating the controller and the fire-fighting pipeline, the bottom of which is filled with concrete.
10. A mining system, characterized in that, The system includes a fire alarm system and a mine fire protection system as described in any one of claims 1-9, wherein the fire alarm system is connected to the controller of the mine fire protection system, and the controller controls the opening or closing of the water supply device according to the instructions received from the fire alarm system.