Gas fire extinguishing device installed in electric box
By installing a temperature sensor and a swirling nozzle inside the electrical box, uniform distribution and rapid response of the extinguishing liquid within the box are achieved. This solves the problems of slow response and uneven extinguishing in traditional electrical box gas extinguishing devices, improving extinguishing efficiency and equipment safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LIAONING TIANMIAO FIRE SAFETY TECH TESTING CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-05-05
AI Technical Summary
Traditional electrical box gas fire extinguishing devices have a slow response speed, making it difficult to monitor changes in the internal temperature of the electrical box in a timely and accurate manner. The uneven distribution of extinguishing gas leads to low fire extinguishing efficiency and makes it difficult to fully protect the safety of the electrical box and surrounding equipment.
A temperature sensor is used to monitor the internal temperature of the electrical box in real time, which activates the solenoid valve and buzzer to sound an alarm. The high-pressure fire extinguishing tank, delivery pipe and swirl nozzle work together to achieve uniform distribution of the fire extinguishing liquid and ensure rapid and all-round fire extinguishing.
It achieves efficient fire suppression inside the electrical box, minimizes fire losses, simplifies equipment maintenance procedures, and reduces maintenance costs.
Smart Images
Figure CN224193977U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fire extinguishing equipment technology, and in particular to a gas fire extinguishing device installed inside an electrical box. Background Technology
[0002] In modern industry and daily life, electrical boxes, as key equipment for power distribution and control, are widely used in various locations. However, the dense array of electrical equipment inside these boxes makes them highly susceptible to fire due to overload, short circuits, and other factors during prolonged operation. A fire in an electrical box not only disrupts power supply and affects normal production and daily life but can also lead to more serious safety accidents. Therefore, installing efficient and reliable gas fire extinguishing systems inside electrical boxes is crucial for fire prevention and control, and for ensuring the safety of equipment and personnel.
[0003] Existing electrical box-type gas fire extinguishing devices often employ relatively simple structural designs. Typically, a fire extinguishing gas storage container is installed inside the electrical box, and the extinguishing device is triggered by a temperature fuse or smoke sensor. When the temperature or smoke reaches a set threshold, the fuse blows, activating the valve to release the fire extinguishing gas. This triggering method is relatively simple, and the distribution of the fire extinguishing gas within the electrical box is not uniform enough, meaning the extinguishing effect largely depends on the natural diffusion of the gas.
[0004] However, traditional fire extinguishing devices have a slow response time in the face of sudden fires and struggle to monitor temperature changes inside the electrical box in a timely and accurate manner. Once a fire breaks out, it is difficult to quickly initiate the fire extinguishing process, and the extinguishing gas cannot be evenly and effectively covered in all corners of the electrical box, resulting in low fire extinguishing efficiency. This makes it difficult to minimize the damage caused by the fire and to comprehensively protect the safety of the electrical box and surrounding equipment. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a gas fire extinguishing device installed inside an electrical box, which aims to improve the problem that traditional fire extinguishing devices have a slow response speed and are difficult to monitor the temperature changes inside the electrical box in a timely and accurate manner when facing a sudden fire.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a gas extinguishing device installed inside an electrical box, comprising a cabinet, an explosion-proof cabinet door on one side of the outer wall of the cabinet, a bracket threadedly connected to the top of the cabinet, a high-pressure extinguishing tank fixedly connected to the upper surface of the bracket, a ventilation frame fixedly connected to the inner wall of the cabinet, an electromagnetic valve at the bottom of the high-pressure extinguishing tank, a temperature sensor fixedly connected to the inner wall of the ventilation frame, a buzzer fixedly connected to the top of the cabinet, a second delivery pipe fixedly connected to the bottom of the high-pressure extinguishing tank, a first delivery pipe on the lower surface of the second delivery pipe, and a discharge assembly inside the ventilation frame;
[0007] The emission assembly includes an emission plate and a swirl nozzle. The emission plate is disposed on the top of the ventilation frame, and the swirl nozzle is disposed inside the ventilation frame.
[0008] Furthermore, a fixed ring is fixedly connected to the outer wall of the conveying pipe, a hinge is rotatably connected to one end of the fixed ring, a movable ring is fixedly connected to the outer wall of the hinge, and a fixing component is provided at one end of the movable ring.
[0009] Furthermore, the fixing component includes a handle, a retaining ring, and a barb. The outer wall of the movable ring is fixedly connected to one end of the movable ring, one end of the handle is rotatably connected to one end of the fixed ring, and one end of the retaining ring is rotatably connected to the outer wall of the handle.
[0010] Furthermore, the movable ring is attached to the outer wall of the first and second conveying pipes, and the movable ring is used to limit the movement of the second conveying pipe.
[0011] Furthermore, one end of the retaining ring is slidably connected to the bend of the barb, and the barb is used to limit the retaining ring.
[0012] Furthermore, both the swirling nozzle and the discharge plate are located inside the cabinet, and the swirling nozzle and the discharge plate are used to evenly discharge the high-pressure extinguishing liquid into the interior of the cabinet.
[0013] Furthermore, the inner wall of the fixing ring is in contact with the outer wall of the second conveying pipe, and the fixing ring is used to limit the movement of the second conveying pipe.
[0014] Furthermore, the delivery pipe is located at the top of the ventilation frame, and the delivery pipe is used to deliver the fire extinguishing liquid.
[0015] This utility model has the following beneficial effects:
[0016] 1. In this utility model, the internal temperature of the cabinet is monitored in real time by a temperature sensor. In the event of a fire, the solenoid valve and buzzer can be activated quickly. The buzzer will sound an alarm in time to remind people around. At the same time, the solenoid valve opens the second delivery pipe, allowing the extinguishing liquid in the high-pressure fire extinguishing tank to flow into the ventilation frame through the first delivery pipe. The discharge plate and the swirl nozzle work together to evenly discharge the extinguishing liquid into the cabinet, achieving efficient fire extinguishing, minimizing the losses caused by the fire, and ensuring the safety of the electrical box and surrounding equipment.
[0017] 2. In this utility model, by pulling the handle and rotating it at one end of the fixed ring, the retaining ring is disengaged from the limit of the barb. Then, by pulling the barb, the movable ring rotates around the hinge, thereby releasing the second delivery pipe. This allows for convenient and quick removal of the high-pressure fire extinguisher for replacement. The fixed ring and the movable ring limit the second delivery pipe, ensuring the stability of the equipment during normal operation, simplifying the equipment maintenance process, and reducing maintenance costs and time costs. Attached Figure Description
[0018] Figure 1 This is a three-dimensional structural diagram of a gas fire extinguishing device installed inside an electrical box, as proposed in this utility model.
[0019] Figure 2 This is a schematic diagram of the internal structure of a cabinet for installing a gas fire extinguishing device inside an electrical box, as proposed in this utility model.
[0020] Figure 3 This is a schematic diagram of one side of the ventilation frame for installing a gas fire extinguishing device inside an electrical box, as proposed in this utility model.
[0021] Figure 4 This is a schematic diagram of one side of the fixing ring structure for installing a gas extinguishing device inside an electrical box, as proposed in this utility model.
[0022] Legend:
[0023] 1. Cabinet body; 2. Explosion-proof cabinet door; 3. Bracket; 4. High-pressure fire extinguisher; 5. Buzzer; 6. Ventilation rack; 7. Solenoid valve; 8. Temperature sensor; 9. Discharge plate; 10. Swirl nozzle; 11. Delivery pipe one; 12. Delivery pipe two; 13. Fixing ring; 14. Hinge; 15. Moving ring; 16. Handle; 17. Snap ring; 18. Barb. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Reference Figure 1 - Figure 3This utility model provides an embodiment of a gas extinguishing device installed inside an electrical box, including a cabinet 1. An explosion-proof cabinet door 2 is provided on one side of the outer wall of the cabinet 1. A bracket 3 is threadedly connected to the top of the cabinet 1 to fix a high-pressure extinguishing tank 4, keeping it in a designated position to ensure the normal operation of the extinguishing device. The high-pressure extinguishing tank 4 is fixedly connected to the upper surface of the bracket 3, storing extinguishing liquid to provide the necessary extinguishing medium for firefighting operations. A ventilation rack 6 is fixedly connected to the inner wall of the cabinet 1 to provide space support for further distribution and spraying of the extinguishing liquid. A solenoid valve 7 is provided at the bottom of the high-pressure extinguishing tank 4. After receiving a signal from a temperature sensor 8, it activates the delivery pipe 12 to control the high pressure. The fire extinguishing liquid in the fire extinguishing tank 4 is transported by a temperature sensor 8 (model EI6000) fixedly connected to the inner wall of the ventilation rack 6. This sensor continuously and accurately monitors the internal temperature of the cabinet 1, quickly detects abnormal temperature fluctuations, and transmits the signal to the control circuit to trigger fire extinguishing and alarm actions. A buzzer 5 is fixedly connected to the top of the cabinet 1 to emit a loud alarm sound, alerting nearby personnel that a fire has occurred in the electrical box, facilitating timely response measures. A second delivery pipe 12 is fixedly connected to the bottom of the high-pressure fire extinguishing tank 4. A first delivery pipe 11 is installed on the lower surface of the second delivery pipe 12, which is responsible for transporting the fire extinguishing liquid in the high-pressure fire extinguishing tank 4 to the interior of the ventilation rack 6. A discharge assembly is installed inside the ventilation rack 6.
[0026] The discharge assembly includes a discharge plate 9 and a swirl nozzle 10. The discharge plate 9 is located on the top of the ventilation rack 6 and performs initial diversion of the extinguishing liquid flowing into the ventilation rack 6, preparing for the swirl nozzle 10 to spray the extinguishing liquid evenly. The swirl nozzle 10 is located inside the ventilation rack 6 and sprays the extinguishing liquid evenly and finely into every corner of the cabinet 1, achieving all-round and efficient fire extinguishing.
[0027] Specifically, when the gas fire extinguishing device inside the electrical box is activated, the temperature sensor 8, model EI6000, begins to continuously and accurately monitor the temperature changes inside the cabinet 1. Due to its high sensitivity, it can quickly detect abnormal temperature fluctuations. Once a fire occurs inside the cabinet 1 due to electrical faults or other reasons, the temperature sensor 8 will quickly transmit the signal to the control circuit, which will then activate the solenoid valve 7 and the buzzer 5. The buzzer 5 will emit a loud alarm sound to warn surrounding personnel that a fire has occurred in the electrical box so that appropriate safety measures can be taken. At the same time, the solenoid valve 7 opens, activating the second delivery pipe 12. The fire extinguishing liquid stored inside the high-pressure fire extinguishing tank 4 flows into the ventilation frame 6 through the first delivery pipe 11 under pressure. The discharge plate 9 and the swirl nozzle 10 work together. The discharge plate 9 initially diverts the fire extinguishing liquid, and the swirl nozzle 10 sprays the fire extinguishing liquid evenly and finely into every corner inside the cabinet 1, achieving all-round and efficient fire extinguishing and quickly controlling the spread of the fire.
[0028] Reference Figure 4A fixed ring 13 is fixedly connected to the outer wall of the first conveyor pipe 11. A hinge 14 is rotatably connected to one end of the fixed ring 13, providing support for the rotation of the movable ring 15, allowing it to rotate around the axis and release the second conveyor pipe 12. A movable ring 15 is fixedly connected to the outer wall of the hinge 14. A fixing component is provided at one end of the movable ring 15, including a handle 16, a retaining ring 17, and a barb 18. The outer wall of the movable ring 15 is fixedly connected to one end of the movable ring 15. One end of the handle 16 is rotatably connected to one end of the fixed ring 13. When the operator pulls the handle 16 to rotate, it causes the retaining ring 17 to move, disengaging it from the locking position of the barb 18. One end of the retaining ring 17 is rotatably connected to the outer wall of the handle 16. The movable ring 15 fits against the outer walls of the first conveyor pipe 11 and the second conveyor pipe 12. The movable ring 15 cooperates with the fixed ring 13 to limit the movement of the second conveyor pipe 12. The movable ring 15 is positioned with the hinge 14 as the pivot. Rotating the axis releases the restriction on the second delivery pipe 12, facilitating the removal of the high-pressure fire extinguishing tank 4. The movable ring 15 is used to limit the second delivery pipe 12. One end of the retaining ring 17 is slidably connected to the bend of the barb 18. The barb 18 is used to limit the retaining ring 17. The retaining ring 17 and the barb 18 cooperate to lock the movable ring 15, ensuring the stability of the second delivery pipe 12 during normal operation. When it is necessary to replace the high-pressure fire extinguishing tank 4, the retaining ring 17 is disengaged from the barb 18, thereby unlocking the movable ring 15. The swirl nozzle 10 and the discharge plate 9 are both located inside the cabinet 1. The swirl nozzle 10 and the discharge plate 9 are used to evenly discharge the high-pressure fire extinguishing liquid into the interior of the cabinet 1. The inner wall of the fixing ring 13 is in contact with the outer wall of the second delivery pipe 12. The fixing ring 13 is used to limit the second delivery pipe 12. The first delivery pipe 11 is located on the top of the ventilation frame 6. The first delivery pipe 11 is used to deliver the fire extinguishing liquid.
[0029] Specifically, the operator needs to pull the handle 16 to rotate one end of the fixed ring 13. The rotation of the handle 16 causes one end of the retaining ring 17 to move synchronously, allowing the retaining ring 17 to disengage from the locking position of the barb 18. Then, pull the barb 18, which causes the movable ring 15 to rotate around the hinge 14. As the movable ring 15 rotates, the limiting restraint on the delivery pipe 12 is released. At this time, the high-pressure fire extinguisher 4 can be removed from the bracket 3 and replaced with a brand new high-pressure fire extinguisher 4 to ensure that the fire extinguishing device is always in a usable state and to ensure the safety of the electrical box.
[0030] Working principle: When a gas fire extinguishing device is installed inside the electrical box, the temperature inside the cabinet 1 is first monitored in real time by the temperature sensor 8 (model EI6000). When a fire occurs inside the cabinet 1, the temperature sensor 8 will activate the solenoid valve 7 and the buzzer 5 to sound an alarm. Then, the solenoid valve 7 will activate the second delivery pipe 12, allowing the extinguishing liquid inside the high-pressure fire extinguishing tank 4 to be discharged into the ventilation rack 6 through the first delivery pipe 11. Then, the extinguishing liquid will be evenly discharged into the cabinet 1 through the discharge plate 9 and the swirl nozzle 10 for efficient fire extinguishing.
[0031] In addition, by pulling the handle 16 to rotate one end of the fixed ring 13, one end of the retaining ring 17 is moved, thereby disengaging one end of the retaining ring 17 from the bend of the barb 18. Then, by pulling the barb 18, the movable ring 15 is rotated around the hinge 14, thereby releasing the second delivery pipe 12. Then, the high-pressure fire extinguisher 4 can be removed for replacement.
[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A gas extinguishing device installed inside an electrical box, comprising a cabinet (1), characterized in that: An explosion-proof cabinet door (2) is provided on one side of the outer wall of the cabinet (1). A bracket (3) is threadedly connected to the top of the cabinet (1). A high-pressure fire extinguishing tank (4) is fixedly connected to the upper surface of the bracket (3). A ventilation frame (6) is fixedly connected to the inner wall of the cabinet (1). A solenoid valve (7) is provided at the bottom of the high-pressure fire extinguishing tank (4). A temperature sensor (8) is fixedly connected to the inner wall of the ventilation frame (6). A buzzer (5) is fixedly connected to the top of the cabinet (1). A second delivery pipe (12) is fixedly connected to the bottom of the high-pressure fire extinguishing tank (4). A first delivery pipe (11) is provided on the lower surface of the second delivery pipe (12). A discharge assembly is provided inside the ventilation frame (6). The emission assembly includes an emission plate (9) and a swirl nozzle (10). The emission plate (9) is disposed on the top of the ventilation frame (6), and the swirl nozzle (10) is disposed inside the ventilation frame (6).
2. A gas fire extinguishing device installed inside an electrical box according to claim 1, characterized in that: A fixed ring (13) is fixedly connected to the outer wall of the conveying pipe (11). A hinge (14) is rotatably connected to one end of the fixed ring (13). A movable ring (15) is fixedly connected to the outer wall of the hinge (14). A fixing component is provided at one end of the movable ring (15).
3. A gas fire extinguishing device installed inside an electrical box according to claim 2, characterized in that: The fixing component includes a handle (16), a retaining ring (17), and a barb (18). The outer wall of the movable ring (15) is fixedly connected to one end of the movable ring (15). One end of the handle (16) is rotatably connected to one end of the fixed ring (13). One end of the retaining ring (17) is rotatably connected to the outer wall of the handle (16).
4. A gas extinguishing device installed inside an electrical box according to claim 3, characterized in that: The movable ring (15) is attached to the outer wall of the first conveying pipe (11) and the second conveying pipe (12), and the movable ring (15) is used to limit the second conveying pipe (12).
5. A gas extinguishing device installed inside an electrical box according to claim 3, characterized in that: One end of the retaining ring (17) is slidably connected to the bend of the barb (18), and the barb (18) is used to limit the retaining ring (17).
6. A gas extinguishing device installed inside an electrical box according to claim 1, characterized in that: The swirling nozzle (10) and the discharge plate (9) are both located inside the cabinet (1). The swirling nozzle (10) and the discharge plate (9) are used to uniformly discharge the high-pressure extinguishing liquid into the cabinet (1).
7. A gas extinguishing device installed inside an electrical box according to claim 3, characterized in that: The inner wall of the fixing ring (13) is in contact with the outer wall of the second conveying pipe (12), and the fixing ring (13) is used to limit the movement of the second conveying pipe (12).
8. A gas fire extinguishing device installed inside an electrical box according to claim 1, characterized in that: The first delivery pipe (11) is located at the top of the ventilation frame (6) and is used to deliver fire extinguishing liquid.