Spontaneous combustion alarm device for high-low voltage power distribution cabinet and use method of spontaneous combustion alarm device

Abstract

The invention relates to the technical field of high-low voltage power distribution cabinet spontaneous combustion alarm, in particular to a high-low voltage power distribution cabinet spontaneous combustion alarm device which comprises a power distribution cabinet body, a cabinet door arranged on one side of the power distribution cabinet body, an installation frame arranged in the power distribution cabinet body, a high-low voltage power distribution module assembly installed on one side of the installation frame, and a signal reminding assembly arranged on one side of the cabinet door. A keel spraying part is arranged on one side of the mounting frame and used for conducting spraying fire extinguishing on the high-voltage and low-voltage power distribution module assemblies, a fire extinguishing agent providing part is arranged on one side of the keel spraying part, a sensor module is arranged in the power distribution cabinet body, and a heat dissipation and smoke exhaust part is arranged on one side of the power distribution cabinet body. The system integrates the functions of multi-system cooperative protection, three-dimensional fire monitoring, an efficient fire extinguishing system, intelligent heat dissipation, smoke discharge and alarm reminding.

Description

Technical Field

[0001] The present invention relates to the technical field of spontaneous combustion alarms for high and low voltage distribution cabinets, and in particular to a spontaneous combustion alarm device for high and low voltage distribution cabinets and a method of using the device. Background Art

[0002] With the rapid development of power systems, high and low voltage distribution cabinets, as key equipment for power transmission and distribution, are receiving increasing attention for their operational safety. However, in actual operation, spontaneous combustion accidents caused by electrical short circuits, equipment aging, overloads, etc. in distribution cabinets pose a threat to the stable operation of the power system and the safety of people's lives and property.

[0003] In the prior art, a Chinese patent application numbered 202411553934.8 discloses a self-ignition alarm device for a high and low voltage distribution cabinet, comprising a distribution cabinet body and a breathable filter plate fixedly mounted on both sides of the distribution cabinet body. When spontaneous combustion occurs inside the distribution cabinet, a large amount of smoke will be generated. When the exhaust fan drives the gas flow in the distribution cabinet body, the generated smoke will be discharged outward along the exhaust fan. During the process of the smoke being discharged outward, it will contact the smoke alarm and trigger the smoke alarm. The smoke alarm will sound and transmit a signal to the sound and light alarm at the same time. When the exhaust fan drives the air flow, a larger airflow is discharged outward from the breathable filter plate. During the outward flow of the airflow, the cleaning structure is driven to clean the detection surface of the smoke alarm, so that its detection surface is always in a clean state, solving the problem of inaccurate detection results caused by surface dust accumulation over a long period of use.

[0004] In the existing technology, the spontaneous combustion alarm device of high and low voltage distribution cabinets has the defects of single monitoring means, low fire extinguishing efficiency, insufficient smoke exhaust and heat dissipation, and delayed system response. For this reason, we propose a spontaneous combustion alarm device for high and low voltage distribution cabinets. Summary of the Invention

[0005] The present invention aims to solve the shortcomings of the prior art and proposes a self-ignition alarm device for a high and low voltage distribution cabinet and a method of using the same.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A spontaneous combustion alarm device for a high and low voltage distribution cabinet comprises a distribution cabinet body, a cabinet door is provided on one side of the distribution cabinet body, a mounting bracket is provided in the distribution cabinet body, a high and low voltage distribution module assembly is installed on one side of the mounting bracket, a signal reminder assembly is provided on one side of the cabinet door, a keel spray part is provided on one side of the mounting bracket, the keel spray part is used to spray and extinguish fire on the high and low voltage distribution module assembly, a fire extinguishing agent supply part is provided on one side of the keel spray part, a sensor module is provided in the distribution cabinet body, and a heat dissipation and smoke exhaust part is provided on one side of the distribution cabinet body.

[0008] Preferably, the keel spray part includes a keel guide frame, which is arranged on one side of the mounting frame. A plurality of nozzles are provided at the end of the keel guide frame, and the nozzles are arranged at an oblique angle. A booster liquid pump is provided at one end of the keel guide frame, and a conduit is provided on one side of the booster liquid pump.

[0009] Preferably, the fire extinguishing agent supply unit includes a fire extinguishing agent storage box, which is arranged below the distribution cabinet. The front side of the fire extinguishing agent storage box is respectively provided with an observation window and a guide valve, and one end of the conduit is inserted into the fire extinguishing agent storage box.

[0010] Preferably, the sensor module includes a mounting base, which is arranged on the inner wall of the distribution cabinet, and a temperature sensor, a smoke sensor, an open flame sensor, a leakage sensor, a fault sensor and a humidity sensor are respectively arranged on one side of the mounting base.

[0011] Preferably, the heat dissipation and smoke exhaust part includes a smoke guide box shell, which is arranged on the upper side of the power distribution cabinet, a plug-in slot is provided on one side of the smoke guide box shell, a storage box is provided in the plug-in slot, a purification filter and ventilation component is provided on the upper side of the storage box, a ventilation hole is provided between the power distribution cabinet and the smoke guide box shell, a fan is provided in the ventilation hole, a plurality of air holes are provided on the lower side of the power distribution cabinet, a ventilation frame is provided between the power distribution cabinet and the fire extinguishing agent placement box, and a backup power supply is provided on the upper side of the smoke guide box shell.

[0012] Preferably, the signal reminder component includes an electric control board, which is arranged on one side of the cabinet door. An obstacle light, a buzzer alarm, and a spontaneous combustion alarm light are arranged on one side of the electric control board from left to right.

[0013] Preferably, the purification, filtration and ventilation assembly includes a purification plate, a filter plate and a mesh ventilation plate, and the purification plate, the filter plate and the mesh ventilation plate are arranged in a composite integrated structure.

[0014] A method for using a spontaneous combustion alarm device for a high and low voltage distribution cabinet, the specific steps are as follows:

[0015] S1: A short circuit occurs in the high and low voltage distribution module components in the distribution cabinet, and the sensor module detects the signal and sends it;

[0016] S2. The signal is sent to the signal reminder component for warning.

[0017] S3. At the same time, the signal is also sent to the keel spray unit, which cooperates with the fire extinguishing agent supply unit to extinguish the fire;

[0018] S4. While extinguishing the fire, the heat dissipation and smoke exhaust unit works to quickly exhaust smoke and dissipate heat from the distribution cabinet.

[0019] In summary, the present invention integrates multi-system coordinated protection, three-dimensional fire monitoring, an efficient fire extinguishing system, intelligent heat dissipation and smoke exhaust, and alarm reminder functions. By integrating the sensor module, keel spray unit, and heat dissipation and smoke exhaust unit into the distribution cabinet, it achieves integrated coordinated protection of fire monitoring, active fire extinguishing, and smoke exhaust, significantly improving the safety protection level of the distribution cabinet.

[0020] The sensor module is installed inside the power distribution cabinet and can monitor the environmental parameters inside the cabinet in real time, including temperature, smoke, open flames and other fire signs, forming a comprehensive fire monitoring network, greatly improving the accuracy and timeliness of fire warnings;

[0021] The keel spray unit is installed on one side of the mounting frame, which can directly carry out directional spraying fire extinguishing on the high and low voltage distribution module components. Combined with the continuous supply of fire extinguishing agent from the fire extinguishing agent supply unit, it can quickly respond to the fire in the early stage and effectively control the fire.

[0022] The heat dissipation and smoke exhaust unit is installed on one side of the distribution cabinet, which can promptly discharge high-temperature smoke and harmful gases in the cabinet during or after fire extinguishing, preventing secondary disasters and helping to quickly cool down the distribution equipment; the signal reminder component installed on the cabinet door can immediately emit an audible and visual alarm signal when a fire occurs, ensuring that on-site personnel can detect the danger and take countermeasures as soon as possible.

[0023] The multi-dimensional fire detection and early warning system of the present invention realizes real-time monitoring of various faults such as electrical short circuit, local overheating, smoke generation, leakage, etc. through a composite sensor module integrating temperature sensor, smoke sensor, open flame sensor, leakage sensor, fault sensor and humidity sensor, significantly improving the sensitivity of early fire identification. Combined with the signal reminder components linked with sound and light (fault light, buzzer alarm, spontaneous combustion alarm light), it ensures that on-site and remote personnel are alerted in the first time, thus buying critical time for emergency response.

[0024] The invention's precise directional fire extinguishing system and three-dimensional spray coverage: the keel spraying part adopts nozzles arranged at an angle and cooperates with the keel guide frame to form a cross-spray network, achieving no-dead-angle coverage of high and low voltage distribution module components, and improving the utilization rate of fire extinguishing agent by more than %;

[0025] Rapid response mechanism: The booster pump and the conduit form a high-pressure delivery channel, which can start the sprinkler within seconds after the sensor is triggered, effectively suppressing the spread of fire;

[0026] Long-term supply of fire extinguishing agent: The fire extinguishing agent storage box realizes liquid level visualization and rapid replenishment through the observation window and guide valve, ensuring continuous fire extinguishing capability.

[0027] The invention features intelligent smoke exhaust, heat management and efficient heat dissipation design: the heat dissipation and smoke exhaust part forms a forced convection channel through air holes, ventilation frame and fan, which accelerates the discharge of hot air in the cabinet and avoids secondary failure caused by high temperature accumulation;

[0028] Dust purification function: The purification, filtration and ventilation components adopt a composite integrated structure (purification plate + filter plate + mesh ventilation plate), which can absorb toxic gases and particulate matter and reduce secondary environmental pollution;

[0029] Emergency power supply guarantee: The backup power supply is automatically activated when the main circuit is interrupted to maintain the continuous operation of the smoke exhaust and alarm systems. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the explosive structure of the present invention;

[0031] Figure 2 This is a schematic structural diagram of the keel spray portion of the present invention;

[0032] Figure 3 This is a structural diagram of the heat dissipation and smoke exhaust portion of the present invention;

[0033] Figure 4 Schematic diagram of the structure of the sensor module of the present invention;

[0034] Figure 5 This is a schematic structural diagram of the front axial side of the present invention;

[0035] Figure 6 This is a schematic structural diagram of the present invention, showing the front section of the axis;

[0036] Figure 7 This is a schematic structural diagram of the present invention when the shaft side is cut away.

[0037] In the figure: 1. Power distribution cabinet; 2. Cabinet door; 3. Mounting frame; 4. High and low voltage power distribution module assembly; 5. Keel spray part; 51. Keel guide frame; 52. Nozzle; 53. Booster pump; 54. Conduit; 6. Fire extinguishing agent storage box; 7. Observation window; 8. Guide valve; 9. Sensor module; 91. Mounting seat; 92. Temperature sensor; 93. Smoke sensor; 94. Open flame sensor; 95. Leakage sensor; 96. Fault sensor; 97. Humidity sensor; 10. Heat dissipation and smoke exhaust part; 101. Smoke guide box shell; 102. Plug slot; 103. Storage box; 104. Purification and filtration ventilation assembly; 105. Fan; 11. Ventilation frame; 12. Air hole; 13. Backup power supply; 14. Ventilation hole; 15. Electric control board; 16. Fault light; 17. Buzzer alarm; 18. Spontaneous combustion alarm light. DETAILED DESCRIPTION

[0038] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0039] like Figure 1-Figure 7 As shown, a self-ignition alarm device for a high and low voltage distribution cabinet includes a distribution cabinet body 1, a cabinet door 2 is hinged on one side of the distribution cabinet body 1 to form a closed distribution space, and the cabinet door 2 is opened to perform installation and maintenance operations inside. A mounting frame 3 is fixedly set inside the distribution cabinet body 1, which provides installation support for a high and low voltage distribution module assembly 4. The high and low voltage distribution module assembly 4 is installed on one side of the mounting frame 3 and assumes the high and low voltage distribution function.

[0040] The keel spray part 5 is a key component of fire extinguishing. The keel guide frame 51 is firmly set on one side of the mounting frame 3 by welding or bolt connection, and is in a grid-like or specific guide layout to ensure coverage of the high and low voltage distribution module assembly 4. A number of nozzles 52 are evenly distributed at the end of the keel guide frame 51. These nozzles 52 are arranged at an oblique angle, which can enable the sprayed fire extinguishing agent to better cover various parts of the high and low voltage distribution module assembly 4. A booster liquid pump 53 is installed at one end of the keel guide frame 51, and the booster liquid pump 53 is connected to the conduit 54 through a pipe.

[0041] The fire extinguishing agent supply unit includes a fire extinguishing agent storage box 6, which is located below the power distribution cabinet 1. An observation window 7 is installed on the front side of the fire extinguishing agent storage box 6 to facilitate staff to check the internal fire extinguishing agent reserves; a guide valve 8 is used to control the injection of fire extinguishing agent. One end of the conduit 54 is plugged into the fire extinguishing agent storage box 6. Under the action of the booster pump 53, the fire extinguishing agent can enter the keel guide frame 51 along the conduit 54 and be sprayed out through the nozzle 52 to extinguish the fire.

[0042] The sensor module 9 includes a mounting base 91, which is fixed to the inner wall of the distribution cabinet 1 by screws. The temperature sensor 92, smoke sensor 93, open flame sensor 94, leakage sensor 95, fault sensor 96 and humidity sensor 97 are all installed on one side of the mounting base 91. These sensors monitor various parameters in the distribution cabinet 1 in real time. For example, the temperature sensor 92 monitors the internal temperature and sends a signal when the temperature exceeds a preset threshold; the smoke sensor 93 detects the smoke concentration and triggers the alarm mechanism once smoke is detected; the open flame sensor 94 is used to detect whether an open flame occurs; the leakage sensor 95 monitors whether the circuit leaks electricity; the fault sensor 96 monitors the operation failure of the high and low voltage distribution module assembly 4; the humidity sensor 97 monitors the humidity in the cabinet. Each sensor transmits the detected signal to the electric control board 15 for processing.

[0043] The heat dissipation and smoke exhaust part 10 includes a smoke guide box shell 101, which is fixed to the upper side of the power distribution cabinet 1 by welding or bolting. The plug-in slot 102 on one side of the smoke guide box shell 101 is used to insert the storage box 103. The upper side of the storage box 103 is installed with a purification filter ventilation component 104. The component is composed of a purification plate, a filter plate and a mesh ventilation plate in a composite integrated structure, which can effectively filter harmful substances in the smoke. A ventilation hole 14 is opened between the power distribution cabinet 1 and the smoke guide box shell 101. A fan 105 is installed in the ventilation hole 14. When the fan 105 is powered on, it can The smoke in the power distribution cabinet 1 is drawn into the smoke guide box shell 101 through the ventilation holes 14, and is discharged after being filtered by the purification filter breathable component 104 in the storage box 103. A number of air holes 12 are provided on the lower side of the power distribution cabinet 1 for air to flow in and ensure air circulation in the cabinet. A breathable frame 11 is provided between the power distribution cabinet 1 and the fire extinguishing agent placement box 6 to ensure air circulation and to play a certain isolation role. A backup power supply 13 is installed on the upper side of the smoke guide box shell 101 to power the fan 105 and other equipment when the main power fails, ensuring the normal operation of the heat dissipation and smoke exhaust functions.

[0044] The signal reminder component includes an electric control board 15, which is installed on one side of the cabinet door 2. The obstacle light 16, the buzzer alarm 17, and the spontaneous combustion alarm light 18 are arranged on one side of the electric control board 15 from left to right. When the sensor module 9 detects the signal and transmits it to the electric control board 15, the electric control board 15 controls the obstacle light 16 to flash, the buzzer alarm 17 to sound an alarm, and the spontaneous combustion alarm light 18 to light up, thereby reminding the staff in various ways.

[0045] In actual use, when a short circuit or fire occurs in the high and low voltage distribution module assembly 4 in the distribution cabinet 1:

[0046] The temperature sensor 92, smoke sensor 93, open flame sensor 94 and other components in the sensor module 9 detect abnormal signals and transmit the signals to the electric control board 15;

[0047] After receiving the signal, the electric control panel 15 immediately controls the operation of the obstacle light 16, the buzzer alarm 17, and the spontaneous combustion alarm light 18 to give a warning so that the staff can be informed of the abnormal situation of the power distribution cabinet in time;

[0048] At the same time, the electric control board 15 sends a signal to the keel spray unit 5, the booster pump 53 starts, and the fire extinguishing agent is drawn from the fire extinguishing agent storage box 6 through the conduit 54. The fire extinguishing agent is sprayed from the nozzle 52 through the keel guide frame 51 to extinguish the high and low voltage distribution module assembly 4;

[0049] While extinguishing the fire, the electric control board 15 controls the fan 105 to start, drawing the smoke in the distribution cabinet 1 into the smoke guide box shell 101 through the ventilation hole 14, and then being discharged after being filtered by the purification, filtration and ventilation component 104 in the storage box 103, thereby achieving rapid smoke exhaust and heat dissipation of the distribution cabinet 1, reducing the temperature in the cabinet, and preventing the spread of fire and further damage to the equipment.

[0050] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A self-ignition alarm device for a high and low voltage distribution cabinet, comprising a distribution cabinet (1), a cabinet door (2) provided on one side of the distribution cabinet (1), a mounting frame (3) provided inside the distribution cabinet (1), a high and low voltage distribution module assembly (4) installed on one side of the mounting frame (3), characterized in that: A signal reminder component is provided on one side of the cabinet door (2); a keel spray portion (5) is provided on one side of the mounting frame (3); the keel spray portion (5) is used to spray and extinguish fire on the high and low voltage power distribution module components (4); a fire extinguishing agent supply portion is provided on one side of the keel spray portion (5); a sensor module (9) is provided in the power distribution cabinet (1); and a heat dissipation and smoke exhaust portion (10) is provided on one side of the power distribution cabinet (1).

2. A self-ignition alarm device for high and low voltage distribution cabinets according to claim 1, characterized in that: The keel spraying portion (5) comprises a keel flow guide frame (51), the keel flow guide frame (51) is arranged on one side of the mounting frame (3), a plurality of nozzles (52) are arranged at the end of the keel flow guide frame (51), and the nozzles (52) are arranged at an oblique angle. A booster liquid pump (53) is provided at one end of the keel flow guide frame (51), and a conduit (54) is provided on one side of the booster liquid pump (53).

3. A self-ignition alarm device for high and low voltage distribution cabinets according to claim 2, characterized in that: The fire extinguishing agent supply unit comprises a fire extinguishing agent placement box (6), which is arranged below the power distribution cabinet (1). An observation window (7) and a guide valve (8) are respectively provided on the front side of the fire extinguishing agent placement box (6), and one end of the conduit (54) is inserted into the fire extinguishing agent placement box (6).

4. A self-ignition alarm device for high and low voltage distribution cabinets according to claim 1, characterized in that: The sensor module (9) comprises a mounting base (91), the mounting base (91) being arranged on the inner side wall of the power distribution cabinet (1), and a temperature sensor (92), a smoke sensor (93), an open flame sensor (94), a leakage sensor (95), a fault sensor (96) and a humidity sensor (97) being respectively arranged on one side of the mounting base (91).

5. The self-ignition alarm device for high and low voltage distribution cabinets according to claim 3 is characterized in that: The heat dissipation and smoke exhaust part (10) includes a smoke guide box shell (101), the smoke guide box shell (101) is arranged on the upper side of the power distribution cabinet (1), a plug slot (102) is provided on one side of the smoke guide box shell (101), a storage box (103) is provided in the plug slot (102), a purification filter ventilation component (104) is provided on the upper side of the storage box (103), a ventilation hole (14) is provided between the power distribution cabinet (1) and the smoke guide box shell (101), a fan (105) is provided in the ventilation hole (14), a plurality of air holes (12) are provided on the lower side of the power distribution cabinet (1), a ventilation frame (11) is provided between the power distribution cabinet (1) and the fire extinguishing agent placement box (6), and a backup power supply (13) is provided on the upper side of the smoke guide box shell (101).

6. The self-ignition alarm device for high and low voltage distribution cabinets according to claim 1 is characterized in that: The signal reminder component comprises an electric control panel (15), which is arranged on one side of the cabinet door (2), and an obstacle light (16), a buzzer alarm (17), and a spontaneous combustion alarm light (18) are arranged on one side of the electric control panel (15) in sequence from left to right.

7. The self-ignition alarm device for high and low voltage distribution cabinets according to claim 5, characterized in that: The purification, filtration and ventilation component (104) comprises a purification plate, a filter plate and a mesh ventilation plate, and the purification plate, the filter plate and the mesh ventilation plate are arranged in a composite integrated structure.

8. The method for using the high and low voltage distribution cabinet spontaneous combustion alarm device according to any one of claims 1 to 7, characterized in that: The specific steps are as follows: S1, the high and low voltage distribution module assembly (4) in the distribution cabinet (1) short-circuit and fire, the sensor module (9) detects the signal and sends the signal; S2. The signal is sent to the signal reminder component for warning. S3. At the same time, the signal is also sent to the keel spraying part (5), and the keel spraying part (5) cooperates with the fire extinguishing agent supply part to extinguish the fire; S4. While extinguishing the fire, the heat dissipation and smoke exhaust unit (10) works to quickly exhaust smoke and dissipate heat from the power distribution cabinet (1).

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