Fire extinguishing device for abandoned roadway

Abstract

The utility model relates to fire extinguishing device technical field, and disclose a kind of fire extinguishing device for waste roadway.The kind of fire extinguishing device for waste roadway includes: connecting pipe, the lower side of the connecting pipe is fitted with fixed frame, the inboard of the fixed frame is fixedly installed with mounting plate, the upper side of the mounting plate is fixedly installed with plc controller, the upper side of the mounting plate is fixedly installed with mine smoke sensor, when water is sprayed from fan-shaped shower nozzle, the opposite direction reaction force of two sides before and after shunt pipe will be generated, to drive shunt pipe to rotate with the axis of swivel joint as reference, to change the orientation of fan-shaped shower nozzle constantly, this mode can make fan-shaped shower nozzle tilt and point to two sides, to adjust the orientation of water mist when spraying, so that water mist can be sprayed to oblique front side, to increase the moving distance of water mist in falling process, and by rotating mode, fan-shaped shower nozzle is rotated in sprinkling process, to reach the effect of increasing coverage.

Description

Technical Field

[0001] This utility model relates to the field of fire extinguishing device technology, specifically a fire extinguishing device for abandoned alleyways. Background Technology

[0002] Underground coal mines are typically very complex environments, filled with various potential hazards. The presence of substances such as methane and coal dust makes them highly susceptible to flammable and explosive situations. Once these hazardous substances ignite a fire, the consequences can be extremely serious, potentially leading to significant casualties and property damage. Therefore, fire extinguishing devices are particularly important in such environments. These devices can promptly detect and extinguish initial fires, effectively preventing the spread of the fire and ensuring the safety of miners and the stable operation of the mine.

[0003] The existing Chinese utility model patent with announcement number CN217162950U discloses a rapid fire extinguishing device for underground single-ended roadways, including a power supply, a high-foam fire extinguisher, a ventilation duct, a sealing wall, and a fire scene. The power supply is connected to the high-foam fire extinguisher, and the end of the high-foam fire extinguisher away from the power supply is fixedly connected to the ventilation duct. The lower end of the sealing wall has a reserved opening matching the diameter of the ventilation duct. The end of the ventilation duct away from the high-foam fire extinguisher extends through the reserved opening into the interior of the fire scene. Compared with traditional fire extinguishing methods, this utility model is lightweight, easy to transport, and easy to operate. At the same time, it has strong fire extinguishing safety, fast speed, high efficiency, and extremely low fire extinguishing cost. It also has little impact on the system after fire extinguishing, and can maximize the protection of normal mine production.

[0004] Existing fire extinguishing devices generally use smoke detectors to detect the smoke produced during combustion. After detecting the smoke components, they open a solenoid valve, allowing water inside the pipeline to be sprayed out from the atomizing fan-shaped nozzle through the solenoid valve. This method can only open the atomizing fan-shaped nozzle after an open flame is generated inside, and it cannot spray to cool down when the tunnel temperature rises. In addition, the water mist sprayed by the atomizing fan-shaped nozzles used in existing fire extinguishing devices is disc-shaped, with a small coverage area, requiring close spacing between installations. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides a fire extinguishing device for abandoned alleyways, which has the advantages of spraying water to cool down when the temperature rises and expanding the water mist coverage area, thus solving the aforementioned technical problems.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a fire extinguishing device for abandoned roadways, comprising: a connecting pipe, a fixing frame fitted below the connecting pipe, an mounting plate fixedly mounted on the inner side of the fixing frame, a PLC controller fixedly mounted above the mounting plate, a mine smoke sensor fixedly mounted above the mounting plate, a mine temperature sensor fixedly mounted above the mounting plate, a solenoid valve fixedly mounted below the connecting pipe, a rotary joint fixedly mounted below the solenoid valve, a diverter pipe fixedly mounted below the rotary joint, bends fixedly mounted at both ends of the diverter pipe, and a fan-shaped nozzle fixedly mounted at the end of the bends; the PLC controller can output control signals to open and close the solenoid valve based on the monitoring data of the mine smoke sensor and the mine temperature sensor.

[0009] As a preferred embodiment of this utility model, the connecting pipe is a tee structure, and flange structures are provided at both ends and the bottom of the connecting pipe. The bottom of the fixing frame is a half-ring structure. The connecting pipe can be connected to a water supply pipeline.

[0010] As a preferred technical solution of this utility model, the top left and right sides of the fixing frame are provided with holes for bolt installation, and the fixing frame is symmetrically installed on the front and rear sides of the connecting pipe with the center of the connecting pipe as the reference; the fixing frame can restrict the position of the connecting pipe by bolts.

[0011] As a preferred embodiment of this utility model, the front and rear ends of the mounting plate are fixedly connected to the inner sides of the front and rear side fixing brackets, and the bottom of the mounting plate is in contact with the support block; the mounting plate can support the PLC controller.

[0012] As a preferred embodiment of this utility model, the probe of the mining temperature sensor is bent to the left side of the connecting pipe and vertically downwards; the solenoid valve, rotary joint, and diverter pipe are connected by a flange structure and bolts and nuts; the solenoid valve can control the water flow.

[0013] As a preferred technical solution of this utility model, the diversion pipe has a three-way structure, the bend rotates at a 45-degree angle in the horizontal axis, and the bend is installed symmetrically on the front and rear sides of the diversion pipe with the center of the connecting pipe as the reference; the bend enables the fan-shaped nozzle to tilt towards the ground.

[0014] As a preferred embodiment of this utility model, the fan-shaped nozzle is installed symmetrically in front and behind at the bottom of the curved pipe at both ends of the diverter pipe; the fan-shaped nozzle is capable of generating water mist.

[0015] Compared with the prior art, this utility model provides a fire extinguishing device for abandoned alleyways, which has the following beneficial effects:

[0016] 1. This utility model uses a PLC controller to detect the temperature inside the roadway through a mine temperature sensor. The PLC controller sets temperature thresholds and gas concentration thresholds. When the temperature rises in the roadway or smoke is detected, the PLC controller outputs a control signal to open the solenoid valve. This allows water inside the connecting pipe to enter the distribution pipe through the solenoid valve and rotary joint. The water then enters the fan-shaped nozzles through the bends at both ends of the distribution pipe and is atomized and sprayed out. This method can spray and cool the inside of the roadway after the temperature rises to the temperature threshold, thus preventing spontaneous combustion.

[0017] 2. This utility model, through the setting of the rotary joint, since the diversion pipe is connected to the solenoid valve through the rotary joint, when water is sprayed from the fan-shaped nozzle, it will generate opposite reaction forces on the front and rear sides of the diversion pipe, thereby driving the diversion pipe to rotate around the axis of the rotary joint as a reference, so as to continuously change the orientation of the fan-shaped nozzle. This method can make the fan-shaped nozzle tilt to the front and rear sides to adjust the orientation of the water mist when spraying, so that the water mist can be sprayed obliquely forward, thereby increasing the movement distance of the water mist during the falling process. By rotating, the fan-shaped nozzle is rotated during the spraying process, thereby increasing the coverage area. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the mounting structure of the fixing frame of this utility model;

[0020] Figure 3 This is a schematic diagram of the rotary joint installation structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the installation structure of the fan-shaped nozzle of this utility model;

[0022] The components include: 1. Connecting pipe; 11. Fixing frame; 12. Support block; 13. Mounting plate; 14. PLC controller; 15. Mine smoke sensor; 16. Mine temperature sensor; 17. Solenoid valve; 18. Rotary joint; 19. Diverter pipe; 110. Bend; 111. Fan-shaped nozzle. Detailed Implementation

[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0024] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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 utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Please see Figure 1 - Figure 4 In this embodiment, a fire extinguishing device for abandoned roadways includes: a connecting pipe 1, a fixing frame 11 fitted below the connecting pipe 1, an mounting plate 13 fixedly mounted on the inner side of the fixing frame 11, a PLC controller 14 fixedly mounted above the mounting plate 13, a mine smoke sensor 15 fixedly mounted above the mounting plate 13, a mine temperature sensor 16 fixedly mounted above the mounting plate 13, a solenoid valve 17 fixedly mounted below the connecting pipe 1, a rotary joint 18 fixedly mounted below the solenoid valve 17, a diverter pipe 19 fixedly mounted below the rotary joint 18, bends 110 fixedly mounted at both ends of the diverter pipe 19, and a fan-shaped nozzle 111 fixedly mounted at the end of the bends 110.

[0027] The connecting pipe 1 is a three-way structure, and flange structures are provided at both ends and the bottom of the connecting pipe 1. The bottom of the fixing bracket 11 is a half-ring structure. The top left and right sides of the fixing bracket 11 are provided with holes for bolt installation. The fixing bracket 11 is symmetrically installed on both sides of the connecting pipe 1 with the center of the connecting pipe 1 as the reference. The front and rear ends of the mounting plate 13 are fixedly connected to the inner side of the fixing bracket 11 on both sides. The bottom of the mounting plate 13 contacts the support block 12. The probe of the mine temperature sensor 16 bends to the left side of the connecting pipe 1 and is vertically downward. The solenoid valve 17, the rotary joint 18, and the diversion pipe 19 are connected by flange structures and bolts and nuts. The diversion pipe 19 is a three-way structure. The bend 110 rotates at a 45-degree angle in the horizontal axis. The bend 110 is mirror-symmetrically installed on both sides of the diversion pipe 19 with the center of the connecting pipe 1 as the reference. The fan-shaped nozzle 111 is mirror-symmetrically installed at the bottom of the bend 110 at both ends of the diversion pipe 19.

[0028] Specifically, the PLC controller 14 is model PR10, the mine smoke sensor 15 is model GQQ5, the mine temperature sensor 16 is model GWD42, the rotary joint 18 is model DN50, the fan-shaped nozzle 111 is model H-VV / U, the solenoid valve 17 is model DF / ZCS, and the connecting pipe 1 can be connected to the water supply pipeline. The connecting pipe 1 is suspended by the fixing frame 11 to prevent the gravity of the connecting pipe 1 from affecting the water supply pipeline. The mounting plate 13 is supported by the support block 12, and the mounting plate 13 can restrict the position of the PLC controller 14, the mine smoke sensor 15, and the mine temperature sensor 16. The mine smoke sensor 15 detects the smoke components in the air, and the mine temperature sensor 16 detects the temperature in the roadway. The PLC controller 14 sets temperature and gas concentration thresholds, so that when the temperature rises in the tunnel or when smoke is detected, the PLC controller 14 outputs a control signal to open the solenoid valve 17. This allows water inside the connecting pipe 1 to enter the diversion pipe 19 through the solenoid valve 17 and the rotary joint 18. Water then enters the fan-shaped nozzle 111 from the bends 110 at both ends of the diversion pipe 19. After being atomized by the fan-shaped nozzle 111, the water is sprayed out. Since the diversion pipe 19 is connected to the solenoid valve 17 through the rotary joint 18, when water is sprayed out from the fan-shaped nozzle 111, it will generate opposite reaction forces on both sides of the diversion pipe 19. This will cause the diversion pipe 19 to rotate around the axis of the rotary joint 18, thereby continuously changing the orientation of the fan-shaped nozzle 111.

[0029] In operation, the mine temperature sensor 16 detects the temperature inside the roadway, and the PLC controller 14 sets the temperature threshold and gas concentration threshold. When the temperature rises inside the roadway or smoke is detected, the PLC controller 14 outputs a control signal to open the solenoid valve 17. This allows water from the connecting pipe 1 to flow through the solenoid valve 17 and the rotary joint 18 into the diversion pipe 19. Water then enters the fan-shaped nozzles 111 through the bends 110 at both ends of the diversion pipe 19, where it is atomized and sprayed out. This method can cool the inside of the roadway by spraying water after the temperature rises to the temperature threshold, thus preventing spontaneous combustion. As water is sprayed from the fan-shaped nozzle 111, the diverter pipe 19 is connected to the solenoid valve 17 via the rotary joint 18. When water is sprayed from the fan-shaped nozzle 111, it generates opposite reaction forces on the front and rear sides of the diverter pipe 19. This causes the diverter pipe 19 to rotate around the axis of the rotary joint 18, thereby continuously changing the orientation of the fan-shaped nozzle 111. This allows the fan-shaped nozzle 111 to tilt towards the front and rear sides, adjusting the orientation of the water mist when it is sprayed. This allows the water mist to spray out diagonally forward, increasing the distance the water mist travels during its descent. By rotating the fan-shaped nozzle 111 during the spraying process, the coverage area is increased.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fire extinguishing device for abandoned alleyways, characterized in that, include: A connecting pipe (1) is provided, and a fixing bracket (11) is fitted and installed below the connecting pipe (1). An mounting plate (13) is fixedly installed on the inner side of the fixing bracket (11). A PLC controller (14) is fixedly installed above the mounting plate (13). A mine smoke sensor (15) is fixedly installed above the mounting plate (13). A mine temperature sensor (16) is fixedly installed above the mounting plate (13). A solenoid valve (17) is fixedly installed below the connecting pipe (1). A rotary joint (18) is fixedly installed below the solenoid valve (17). A diverter pipe (19) is fixedly installed below the rotary joint (18). A bend pipe (110) is fixedly installed at both ends of the diverter pipe (19). A fan-shaped nozzle (111) is fixedly installed at the end of the bend pipe (110).

2. The fire extinguishing device for abandoned tunnels according to claim 1, characterized in that: The connecting pipe (1) is a three-way structure, and flange structures are provided at both ends and the bottom of the connecting pipe (1). The bottom of the fixing frame (11) is a half-ring structure.

3. A fire extinguishing device for abandoned tunnels according to claim 1, characterized in that: The top left and right sides of the fixing frame (11) are provided with holes for bolt installation. The fixing frame (11) is symmetrically installed on the front and back sides of the connecting pipe (1) with the center of the connecting pipe (1) as the reference.

4. A fire extinguishing device for abandoned tunnels according to claim 1, characterized in that: The front and rear ends of the mounting plate (13) are fixedly connected to the inner sides of the front and rear side fixing brackets (11), and the bottom of the mounting plate (13) is in contact with the support block (12).

5. A fire extinguishing device for abandoned tunnels according to claim 1, characterized in that: The probe of the mining temperature sensor (16) bends to the left side of the connecting pipe (1) and points vertically downward. The solenoid valve (17), rotary joint (18), and diverter pipe (19) are connected by a flange structure and bolts and nuts.

6. A fire extinguishing device for abandoned tunnels according to claim 1, characterized in that: The diverter pipe (19) has a three-way structure. The bend pipe (110) rotates at a 45-degree angle in the horizontal axis. The bend pipe (110) is installed symmetrically on the front and rear sides of the diverter pipe (19) with the center of the connecting pipe (1) as the reference.

7. A fire extinguishing device for abandoned tunnels according to claim 1, characterized in that: The fan-shaped nozzle (111) is installed symmetrically in front and behind at the bottom of the bend (110) at both ends of the diverter pipe (19).

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