Fire alarm spraying device and method for coal conveying belt

Abstract

The invention discloses a fire alarm spraying device and method for a coal conveying belt, the fire alarm spraying device comprises an equipment frame body, a deluge system main pipeline, a deluge alarm valve, a first signal butterfly valve and a second signal butterfly valve, the deluge system main pipeline is arranged on the side portion of the equipment frame body, the deluge alarm valve is installed on the deluge system main pipeline, and the first signal butterfly valve is connected with the deluge system main pipeline. The first signal butterfly valve and the second signal butterfly valve are correspondingly installed at the two ends of the deluge alarm valve. A movable supporting seat is rotationally arranged at the top end of the equipment frame body, a spraying pipe is arranged on one side of the movable supporting seat, a plurality of spraying heads are arranged on the spraying pipe at equal intervals, and the deluge system main pipeline is communicated with the spraying heads through the spraying pipe. The system accords with the current fire-fighting facility construction specifications, has an automatic fire extinguishing function, greatly improves the fireproof performance of the fire-fighting facility of the coal conveying and unloading system, perfects the automatic fire-fighting function, and ensures the fire-fighting safety.

Description

Technical Field

[0001] This invention relates to the field of fire protection technology for coal conveyor belts, specifically to a fire alarm sprinkler device and method for coal conveyor belts. Background Technology

[0002] Coal conveyor belts are a common type of transportation equipment used in coal mine production to transport coal out of the mine. Since coal is a flammable substance, especially high-sulfur coal and lignite, which are prone to spontaneous combustion, spontaneous combustion can easily lead to fires. During long-term use, coal conveyor belts generate a large amount of heat due to friction between the coal and the conveying equipment. If this heat is not dissipated in time, the surface temperature of the conveyor belt will rise, increasing the risk of fire. Therefore, the use of coal conveyor belts presents a fire hazard, making fire prevention crucial.

[0003] The existing 330MW coal conveyor belt fire sprinkler alarm system was built a long time ago. Currently, it only includes wet fire water pipes, partially constructed sprinkler fire water pipes, heat-sensing optical cables, and local manual alarms. The fire protection facilities lack sprinkler valve assemblies and do not have the function of automatically activating open-type fire extinguishing devices. Therefore, it does not comply with current fire protection facility construction standards. Furthermore, this fire protection system currently only provides heat-sensing optical cable alarms at the point of fire, extinguishing fires by melting glass bulbs, and local manual alarm functions, which cannot meet the needs of coal conveyor belt applications. Summary of the Invention

[0004] The purpose of this invention is to provide a fire alarm sprinkler device and method for coal conveyor belts to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A fire alarm sprinkler system for a coal conveyor belt includes an equipment frame, a main pipeline for a deluge system, a deluge alarm valve, a first signal butterfly valve, and a second signal butterfly valve. The main pipeline for the deluge system is located on the side of the equipment frame, the deluge alarm valve is installed on the main pipeline for the deluge system, and the first signal butterfly valve and the second signal butterfly valve are respectively installed at both ends of the deluge alarm valve.

[0007] A movable support is rotatably mounted on the top of the equipment frame. A spray pipe is provided on one side of the movable support, and multiple nozzles with equal spacing are provided on the spray pipe. The main pipeline of the rain shower system is connected to the nozzles through the spray pipe.

[0008] A controller chassis is installed on the equipment frame, and a microcontroller, a monitoring module, and a wireless communication module are respectively installed inside the controller chassis; a monitoring camera is installed on the outer wall of the equipment frame above the controller chassis; the microcontroller is electrically connected to the first signal butterfly valve, the second signal butterfly valve, the monitoring module, and the wireless communication module.

[0009] Furthermore, the main pipeline of the rain shower system is connected to the equipment frame via a clamp.

[0010] Further specifying, a pressure testing tube is connected to the main pipeline of the rain system on one side of the rain alarm valve, and the pressure testing tube has a U-shaped structure. A lower chamber pressure gauge is installed at the lower part of the pressure testing tube, and an upper chamber pressure gauge is installed at the upper part of the pressure testing tube.

[0011] Further specifying, a drive slot is provided on the equipment frame below the movable support base, and a geared motor is installed inside the drive slot. The output end of the geared motor is fixedly connected to the movable support base; the geared motor is electrically connected to a single-chip microcomputer.

[0012] Furthermore, a pull rod is fixed to the top of the movable support base, and one end of the pull rod is connected to the end of the spray pipe away from the movable support base.

[0013] Furthermore, one end of the spray pipe passes through the movable support base and is connected to the main pipeline of the rain system via a threaded telescopic pipe.

[0014] Furthermore, the controller chassis is equipped with a storage module that is electrically connected to the microcontroller.

[0015] Further specifying, an audible and visual alarm is installed on the outer wall of the equipment rack on one side of the controller chassis; the audible and visual alarm is electrically connected to the microcontroller.

[0016] A fire alarm sprinkler system for coal conveyor belts includes the following steps:

[0017] S1. Fire alarm sprinkler devices for the coal conveyor belt are installed at the head and tail of the coal conveyor belt and around the pipeline of the transfer station.

[0018] S2. The monitoring module monitors whether a fire has occurred. When a fire occurs, the monitoring module transmits the data to the microcontroller through the wireless communication module.

[0019] S3. The microcontroller controls the sound and light alarm to sound an alarm; at the same time, the microcontroller controls the first signal butterfly valve and the second signal butterfly valve to open, the deluge alarm valve to open, and water enters the sprinkler pipe from the main pipeline of the deluge system and is sprayed out through the nozzles to extinguish the fire.

[0020] In step S3, the microcontroller controls the geared motor to drive the movable support to rotate back and forth. The movable support drives the spray pipe 7 to swing, thereby realizing the dynamic spraying function and expanding the spraying range.

[0021] Compared with the prior art, the beneficial effects of the present invention are:

[0022] In this invention, a deluge system main pipeline is installed at the head and tail of the conveyor belt and at the transfer station. A deluge alarm valve is installed on the main pipeline, and a first signal butterfly valve and a second signal butterfly valve are installed on both sides of the alarm valve to control the opening and closing of the deluge system main pipeline. The opening status of the deluge system main pipeline is monitored by a monitoring module, and a microcontroller inside the controller chassis controls the audible and visual alarm to sound an alarm. When a fire is detected, the deluge system main pipeline opens, and water enters the sprinkler pipe from the main pipeline and is sprayed out through the nozzles to extinguish the fire. The monitoring camera monitors the status of the nozzles when the system is open, and the monitoring module analyzes and processes the monitoring data to determine whether the alarm sprinkler equipment is working properly, complies with current fire protection facility construction standards, has automatic fire extinguishing function, greatly improves the fire protection performance of the coal conveying and unloading system fire protection facilities, improves the automatic fire extinguishing function, and ensures fire safety. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0024] Figure 2 This is an enlarged schematic diagram of the rain alarm valve of the present invention;

[0025] Figure 3 For the present invention Figure 1 Enlarged structural diagram at point A in the middle;

[0026] Figure 4 This is an enlarged cross-sectional view of the controller chassis of the present invention;

[0027] Figure 5 This is a schematic diagram of the system framework structure of the present invention.

[0028] In the diagram: 1. Equipment frame; 2. Main pipe of the deluge system; 3. Deluge alarm valve; 4. Clamp; 5. Movable support base; 6. Tie rod; 7. Spray pipe; 8. Spray head; 9. Controller chassis; 10. First signal butterfly valve; 11. Second signal butterfly valve; 12. Pressure measuring pipe; 13. Lower chamber pressure gauge; 14. Upper chamber pressure gauge; 15. Audible and visual alarm; 16. Drive slot; 17. Gear motor; 18. Threaded telescopic pipe; 19. Monitoring camera; 20. Microcontroller; 21. Monitoring module; 22. Storage module; 23. Wireless communication module. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0031] Example 1

[0032] Please see Figures 1-5 This embodiment provides a fire alarm sprinkler device for a coal conveyor belt, including an equipment frame 1, a main pipeline of the deluge system 2, a deluge alarm valve 3, a first signal butterfly valve 10, and a second signal butterfly valve 11.

[0033] See Figure 2 The main pipe 2 of the rain shower system is located on one side of the equipment frame 1. The rain shower alarm valve 3 is installed on the main pipe 2 of the rain shower system. The first signal butterfly valve 10 and the second signal butterfly valve 11 are respectively installed at both ends of the rain shower alarm valve 3. The top of the equipment frame 1 is rotatably mounted with a movable support 5. A spray pipe 7 is provided on one side of the movable support 5, and the bottom of the spray pipe 7 is equipped with equally spaced nozzles 8.

[0034] In this embodiment, the top and bottom of the main pipe 2 of the rain shower system are connected to the equipment frame 1 by clamps 4 to ensure the stability of the device connection.

[0035] In this embodiment, the equipment frame 1 is used to be installed around the coal conveyor belt, and spray water is supplied to the coal conveyor belt through the main pipeline 2 of the rain system, and sprayed out through the spray pipe 7 and the nozzle 8.

[0036] See Figure 2 In this embodiment, a pressure measuring tube 12 is connected to the main pipe 2 of the deluge system on one side of the deluge alarm valve 3. The pressure measuring tube 12 is a U-shaped tube, and a lower chamber pressure gauge 13 is installed at the lower part of the pressure measuring tube 12, while an upper chamber pressure gauge 14 is installed at the upper part of the pressure measuring tube 12. The pressure of the water in the main pipe 2 of the deluge system is measured by the lower chamber pressure gauge 13 and the upper chamber pressure gauge 14 to ensure that the water sprayed by the nozzle 8 meets the fire extinguishing requirements.

[0037] Specifically, the main pipe 2 of the deluge system is placed vertically, and the deluge alarm valve 3 is installed on the main pipe 2. A first signal butterfly valve 10 is installed at the upper end of the deluge alarm valve 3, and a second signal butterfly valve 11 is installed at the lower end of the deluge alarm valve 3. A pressure measuring pipe 12 is connected to the side wall of the main pipe 2 between the first signal butterfly valve 10 and the second signal butterfly valve 11. The ports of the pressure measuring pipe 12 are connected to the main pipe 2 of the deluge system. A lower chamber pressure gauge 13 is installed on the lower side wall of the pressure measuring pipe 12, and an upper chamber pressure gauge 14 is installed on the upper side wall of the pressure measuring pipe 12.

[0038] In this embodiment, a drive groove 16 is provided on the top of the equipment frame 1 below the movable support base 5, and a reduction motor 17 is installed inside the drive groove 16. The output end of the reduction motor 17 is fixedly connected to the movable support base 5.

[0039] See Figure 3 Furthermore, a pull rod 6 is fixed at the top of the movable support 5, and one end of the pull rod 6 is connected to the end of the spray pipe 7 away from the movable support 5; one end of the spray pipe 7 passes through the movable support 5 and is connected to the main pipe 2 of the rain system through the threaded telescopic pipe 18.

[0040] See Figure 4 In this embodiment, a controller housing 9 is installed on the outer wall of the top of the equipment frame 1, and a microcontroller 20 is installed inside the controller housing 9. A monitoring module 21 is installed inside the controller housing 9 below the microcontroller 20, and a wireless communication module 23 is installed inside the controller housing 9 on one side of the monitoring module 21. A monitoring camera 19 is installed on the outer wall of the equipment frame 1 above the controller housing 9. An audible and visual alarm 15 is installed on the outer wall of the equipment frame 1 on one side of the controller housing 9.

[0041] See Figure 5 In practice, the microcontroller 20 is electrically connected to the first signal butterfly valve 10, the second signal butterfly valve 11, the monitoring module 21, and the wireless communication module 23, respectively. The microcontroller 20 is also electrically connected to the geared motor 17. The audible and visual alarm 15 is electrically connected to the microcontroller 20.

[0042] Specifically, the fire alarm sprinkler device provided in this embodiment includes an equipment frame 1, a deluge system main pipe 2, a deluge alarm valve 3, and a sprinkler pipe 7. By installing fire alarm sprinkler devices at the head and tail of the conveyor belt and at the pipe accessories of the transfer station, the opening and closing of the deluge system main pipe 2 is controlled. The opening status of the deluge system main pipe 2 is monitored by a monitoring module 21, which can be a light sensor, a heat sensor, or a smoke sensor. The monitoring data generated by the monitoring module 21 is transmitted to the microcontroller 20 through a wireless communication module 23.

[0043] When the monitoring module 21 detects a fire, the microcontroller 20 inside the controller chassis 9 controls the audible and visual alarm 15 to sound an alarm. At the same time, the microcontroller 20 controls the main pipe 2 of the rain shower system to open, and water enters the sprinkler pipe 7 from the main pipe 2 of the rain shower system and is sprayed out through the nozzle 8 to extinguish the fire.

[0044] In this embodiment, the monitoring camera 19 monitors the status of the nozzle 8 when it is turned on to determine whether the nozzle 8 is working properly.

[0045] Specifically, the microcontroller 20 controls the geared motor 17 to drive the movable support 5 to rotate back and forth. The movable support 5 drives the spray pipe 7 to swing, thereby realizing the function of dynamic spraying, expanding the spraying range and improving the fire extinguishing efficiency.

[0046] See Figure 4 and Figure 5 The bottom of the controller chassis 9 is equipped with a storage module 22, which is connected to the microcontroller 20 to store the data signals of the microcontroller 20.

[0047] In this embodiment, the microcontroller 20, storage module 22, and wireless communication module 23 are all commercially available products. For example, the microcontroller 20 is a 51 microcontroller or an STM32 microcontroller, or other models of microcontrollers; the storage module 22 is a memory (hard disk drive, solid-state drive); and the wireless communication module 23 is a Siemens wireless communication device.

[0048] Example 2

[0049] This embodiment provides a fire alarm sprinkler method for coal conveyor belts, including the following steps:

[0050] S1. Fire alarm sprinkler systems for coal conveyor belts, as described in the embodiment, are installed at the head and tail of the coal conveyor belt and around the pipelines of the transfer station.

[0051] S2. The monitoring module 21 monitors whether a fire has occurred. When a fire occurs, the monitoring module 21 transmits the data to the microcontroller 20 through the wireless communication module 23.

[0052] S3. The microcontroller 20 controls the sound and light alarm 15 to work and sound an alarm; at the same time, the microcontroller 20 controls the first signal butterfly valve 10 and the second signal butterfly valve 11 to open, the deluge alarm valve 3 to open, and water enters the sprinkler pipe 7 from the main pipe 2 of the deluge system and is sprayed out through the nozzle 8 to extinguish the fire.

[0053] In step S3, the microcontroller 20 controls the geared motor 17 to drive the movable support 5 to rotate back and forth. The movable support 5 drives the spray pipe 7 to swing, thereby realizing the dynamic spraying function and expanding the spraying range.

[0054] Specifically, in this embodiment, during use: a main rain shower system pipe 2 is installed at the head and tail of the conveyor belt and at the transfer station, and the main rain shower system pipe 2 is installed and fixed by the equipment frame 1. A rain shower alarm valve 3 is installed on the main rain shower system pipe 2, and a first signal butterfly valve 10 and a second signal butterfly valve 11 are respectively installed on both sides of the rain shower alarm valve 3 to control the opening and closing of the main rain shower system pipe 2. The opening status of the main rain shower system pipe 2 is monitored by a monitoring module 21, which can be a light sensor, a heat sensor, or a smoke sensor. The monitoring data is transmitted to the microcontroller 20 through a wireless communication module 23. When a fire is detected, the controller housing 9... The microcontroller 20 controls the audible and visual alarm 15 to activate and trigger an alarm. Simultaneously, the microcontroller 20 controls the first signal butterfly valve 10 and the second signal butterfly valve 11 to open, i.e., the deluge alarm valve 3 opens, and the main pipe 2 of the deluge system opens. Water enters the sprinkler pipe 7 from the main pipe 2 and is sprayed out through the nozzle 8 for fire extinguishing. The monitoring camera 19 monitors the status of the nozzle 8 when it is activated and determines whether the nozzle 8 is working properly based on the monitoring data. The microcontroller 20 controls the geared motor 17 to drive the movable support 5 to rotate back and forth. The movable support 5 drives the sprinkler pipe 7 to swing, thereby realizing the function of dynamic spraying, expanding the spraying range, and improving the fire extinguishing efficiency.

[0055] The fire alarm sprinkler system provided in this embodiment has a relatively short installation period, does not affect coal unloading and transportation, complies with current fire protection facility construction standards, has automatic fire extinguishing function, greatly improves the fire protection performance of the coal conveying and unloading system, improves automatic fire extinguishing function, and ensures fire safety.

[0056] It should be noted that in this invention, the microcontroller, monitoring module, monitoring camera, and wireless communication module are all existing devices or technologies in the field that implement their functions.

[0057] Obviously, the embodiments described above are merely some, not all, embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention.

Claims

1. A fire alarm sprinkler for a coal conveyor belt, characterized in that Including equipment frame body (1), rain system main pipe (2), rain alarm valve (3), first signal butterfly valve (10) and second signal butterfly valve (11), rain system main pipe (2) is arranged on the side of equipment frame body (1), rain alarm valve (3) is installed on rain system main pipe (2), first signal butterfly valve (10) and second signal butterfly valve (11) are correspondingly installed on both ends of rain alarm valve (3); The top end of the equipment frame body (1) is rotatably installed with a movable support seat (5), one side of the movable support seat (5) is provided with a spray pipe (7), and a plurality of spray heads (8) are arranged at equal intervals on the spray pipe (7), and the rain system main pipe (2) is communicated with the spray pipe (7) and the spray head (8); A controller cabinet (9) is arranged on the equipment frame body (1), and a single-chip microcomputer (20), a monitoring module (21) and a wireless communication module (23) are respectively arranged in the controller cabinet (9); a monitoring camera (19) is installed on the outer wall of the equipment frame body (1) above the controller cabinet (9); the single-chip microcomputer (20) is electrically connected with the first signal butterfly valve (10), the second signal butterfly valve (11), the monitoring module (21) and the wireless communication module (23).

2. The fire alarm sprinkler system for coal belt conveyors as set forth in claim 1, wherein: The rain system main pipe (2) is connected with the equipment frame body (1) through a hoop (4).

3. The fire alarm sprinkler system for coal belt conveyors as set forth in claim 1, wherein: A pressure measuring pipe (12) is connected to the rain system main pipe (2) on one side of the rain alarm valve (3), and the pressure measuring pipe (12) has a U-shaped structure, a lower cavity pressure gauge (13) is arranged at the lower part of the pressure measuring pipe (12), and an upper cavity pressure gauge (14) is arranged at the upper part of the pressure measuring pipe (12).

4. The fire alarm sprinkler system for coal belt conveyors of claim 1 wherein: A drive groove (16) is arranged on the equipment frame body (1) below the movable support seat (5), a speed reducer (17) is installed in the drive groove (16), the output end of the speed reducer (17) is fixedly connected with the movable support seat (5), and the speed reducer (17) is electrically connected with the single-chip microcomputer (20).

5. The fire alarm sprinkler system for coal belt conveyors as set forth in claim 4, wherein: A pull rod (6) is fixed to the top end of the movable support seat (5), and one end of the pull rod (6) is connected with one end of the spray pipe (7) away from the movable support seat (5).

6. The fire alarm sprinkler system for coal belt conveyors as set forth in claim 5, wherein: One end of the spray pipe (7) penetrates through the movable support seat (5) and is connected with the rain system main pipe (2) through a threaded telescopic pipe (18).

7. The fire alarm sprinkler system for coal belt conveyors of claim 1 wherein: A storage module (22) electrically connected with the single-chip microcomputer (20) is arranged in the controller cabinet (9).

8. The fire alarm sprinkler system for coal belt conveyors of claim 7 wherein: A sound and light alarm (15) is installed on the outer wall of the equipment frame body (1) on one side of the controller cabinet (9), and the sound and light alarm (15) is electrically connected with the single-chip microcomputer (20).

9. A fire alarm spraying method for a coal belt, characterized by, The method comprises the following steps: S1, the fire alarm sprinkler of the coal belt is arranged around the head, tail and transfer station pipeline of the coal belt, as claimed in claim 8; S2, whether the fire is monitored through the monitoring module (21), when the fire occurs, the monitoring module (21) transmits data to the single-chip microcomputer (20) through the wireless communication module (23). S3, the single-chip microcomputer (20) controls the sound-light alarm (15) to work and alarm; meanwhile, the single-chip microcomputer (20) controls the first signal butterfly valve (10) and the second signal butterfly valve (11) to open, the deluge alarm valve (3) opens, water enters the spray pipe (7) from the deluge system main pipe (2) and sprays out through the spray head (8), and fire extinguishing is carried out.

10. The coal-fired belt fire alarm sprinkling method according to claim 9, wherein, In the step S3, the single-chip microcomputer (20) controls the reduction motor (17) to drive the active support seat (5) to reciprocate, the active support seat (5) drives the spray pipe (7) to swing, dynamic spraying function is realized, and the spraying range is expanded.

Images