Safety device of low-voltage switch cabinet

Abstract

The utility model discloses a safety device of a low-voltage switch cabinet, which comprises a cabinet body casing, the cabinet body casing is a square casing with an inner cavity, one side of the cabinet body casing is provided with an opening, a cabinet door is hinged on the opening, the cabinet body casing is provided with an alarm, and the corner of the cabinet body casing is provided with a containing casing. The utility model relates to the technical field of low-voltage switch cabinets, in particular to a safety device of a low-voltage switch cabinet, a safety module with a preprocessing function is arranged in a cabinet body, the safety module is arranged in the switch cabinet by adopting an integral frame and is convenient to disassemble and assemble, and meanwhile, the internal environment of the switch cabinet is detected in a temperature detection mode; if the alarm is not processed in time and the temperature detection is abnormal, the safety module emits protective gas to extinguish fire and protect the internal environment of the switch cabinet, and the situation which cannot be manually processed in time is processed, so that the electrical safety is protected.

Description

Technical Field

[0001] The utility model relates to the technical field of low-voltage switch cabinets, in particular to a safety device for a low-voltage switch cabinet. Background Art

[0002] In the application process of modern low-voltage switchgear, the safety protection measures of low-voltage switchgear mainly include overload protection, leakage protection and temperature monitoring, which mainly alarm for overload, leakage and excessive temperature.

[0003] However, in actual application, workers are unable to rush to the vicinity of the low-voltage switch cabinet for disposal in the first time after the alarm is sounded, and the low-voltage switch cabinet itself often does not have the ability to further deal with fires caused by overload, short circuit, etc., which causes the low-voltage switch cabinet to miss the best time to effectively control unexpected situations, causing damage to the internal electrical system of the low-voltage switch cabinet. In view of this, in-depth research was conducted on the above-mentioned issues, which led to this case. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a safety device for a low-voltage switch cabinet, solving the problems of the prior art.

[0005] To achieve the above objectives, the utility model is implemented through the following technical solutions: a safety device for a low-voltage switch cabinet, comprising a cabinet housing, the cabinet housing is a square inner cavity housing, one side of the cabinet housing is open and a cabinet door is hinged on the opening, an alarm is arranged on the cabinet housing, and a containing housing is arranged at a corner of the cabinet housing;

[0006] A sealed storage tank is contained in the containing shell, a control valve is provided on the tank opening of the sealed storage tank, the control valve is an electromagnetic valve, a battery is connected to the control valve, a discharge groove is provided on one side of the containing shell, and the discharge groove is connected to the tank opening of the sealed storage tank;

[0007] A temperature sensor controller is connected between the control valve and the battery, and the temperature sensor controller is arranged on the outer wall of the containing shell;

[0008] A communicating pipe is arranged on the tank opening of the sealed storage tank and is connected to the discharge groove. A guiding cover body with a conical structure is arranged at the end of the communicating pipe and is connected to the discharge port.

[0009] Preferably, a connecting joint is provided on the end of the sealed storage tank and is threadedly connected to the control valve, and a manual valve is provided on the connecting joint.

[0010] Preferably, the size of the end of the guide cover connected to the connecting pipe is smaller than the size of the end connected to the discharge port.

[0011] Preferably, a fastening frame for fixing the sealed storage tank is provided in the containing shell.

[0012] Preferably, a dustproof net is installed on one side of the discharge slot, and the dustproof net is fixed to the outside of the discharge slot by screws.

[0013] Preferably, an inspection door is hinged on one side opening of the containing shell, and the inspection door is connected to the containing shell via a lock.

[0014] Beneficial Effects

[0015] The utility model provides a safety device for a low-voltage switch cabinet. It has the following beneficial effects: the safety device for the low-voltage switch cabinet adopts a safety module with a pre-processing function arranged inside the cabinet, and the safety module adopts an integral frame to be arranged inside the switch cabinet, which is convenient for disassembly and assembly. At the same time, the internal environment of the switch cabinet is detected by temperature detection. If it is not handled in time after the alarm, and the temperature detection finds an abnormality, the safety module releases protective gas to extinguish the fire and protect the internal environment of the switch cabinet, and handles the situation that cannot be handled manually in time, thereby protecting electrical safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The utility model is a three-dimensional structural schematic diagram of a safety device of a low-voltage switch cabinet.

[0017] Figure 2 It is a partial side structural schematic diagram of a safety device of a low-voltage switch cabinet described in the utility model.

[0018] Figure 3 The utility model is a schematic diagram of a partial explosion structure of a safety device of a low-voltage switch cabinet.

[0019] In the figure: 1. cabinet casing; 2. cabinet door; 3. alarm; 4. container shell; 5. sealed storage tank; 6. electromagnetic valve; 7. battery; 8. discharge tank; 9. temperature sensor controller; 10. connecting pipe; 11. guide cover; 12. connecting joint; 13. manual valve; 14. fastening frame; 15. dust net. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-3 The utility model provides an implementation scheme: in the application process of low-voltage switch, the alarm function of the switch cabinet is mainly limited to short-circuit alarm, overload alarm and over-temperature short-circuit. However, in actual application, these dangerous situations will cause fire and other problems if they are not handled in time. Moreover, after the alarm, sometimes the staff cannot quickly handle the switch cabinet, resulting in untimely handling.

[0022] In view of the above problems, the present application discloses a safety device for a low-voltage switch cabinet. The safety device adds a pre-processing device to the existing alarm device. In the case where the alarm cannot be processed in time after the alarm is issued, the device can process the alarm in advance. Specifically, the cabinet housing 1 and the cabinet door 2 form the overall shell of the switch cabinet. The alarm 3 is arranged on the cabinet housing 1. The alarm 3 is preferably an audible and visual alarm 3. In order to solve the above problems, a structure with pre-processing capability is arranged in a containing shell 4. The containing shell 4 is arranged at a corner in the cabinet housing 1 in the form of welding or riveting. An inspection door is hinged on one side opening of the containing shell 4. The inspection door is connected to the containing shell 4 through a lock to protect and inspect the internal structure.

[0023] Furthermore, a fastening frame 14 is provided in the containing shell 4 to place the sealed storage tank 5, and the sealed storage tank 5 stores high-pressure concentrated carbon dioxide or inert gas that can play a role in fire extinguishing. A control valve is provided on the tank mouth of the sealed storage tank 5, and the control valve is an electromagnetic valve 6. The control valve is used to control the switch of the sealed storage tank 5. A battery 7 is provided in the sealed storage tank 5, and the circuit of the switch cabinet is connected through the battery 7. During daily monitoring, the battery 7 and other components are powered by the circuit of the switch cabinet, and it is ensured that the battery 7 can always be kept fully charged. When the external power supply circuit cannot operate due to a fire, the control valve and the temperature sensor controller 9 are powered by the battery 7. The temperature sensor controller 9 is connected between the control valve and the battery 7, and the temperature of the internal environment of the switch cabinet is detected by the temperature sensor controller 9. It should be noted that the temperature sensor controller 9 is arranged on the outer wall of the containing shell 4. It is different from the temperature monitoring sensor of the switch cabinet itself that is connected to the alarm 3. It monitors the internal environment temperature of the switch cabinet;

[0024] According to the instruction manual Figure 1-3It can be seen that a connecting pipe 10 is provided on the tank mouth of the above-mentioned sealed storage tank 5 and connected to the discharge groove 8. A guide cover 11 with a conical structure is provided at the end of the connecting pipe and connected to the discharge port. When a fire occurs, after the temperature sensor controller 9 detects that the temperature rises to the alarm critical point, the temperature sensor controller 9 controls the control valve to open, so that high-pressure fire extinguishing gas is sprayed from the connecting pipe 10 to one side of the discharge port, and then spreads through the discharge port to fill the cabinet casing 1, suppressing the fire point and protecting the internal electrical until the staff comes to deal with it.

[0025] Furthermore, in order to facilitate maintenance, a connecting joint 12 is provided on the end of the sealed storage tank and is threadedly connected to the control valve, and a manual valve 13 is provided on the connecting joint 12. The sealed storage tank 5 can be quickly replaced through the connecting joint 12. Before replacing the sealed storage tank 5, the manual valve 13 needs to be used to close the tank mouth of the sealed storage tank 5. After the maintenance is completed, the connecting joint 12 is connected to the control valve, and the manual valves need to be opened.

[0026] Furthermore, the size of the end of the guide cover body 11 connected to the communication pipe is smaller than the size of the end connected to the discharge port, thereby playing a guiding role.

[0027] Furthermore, a dustproof net 15 is installed on one side of the discharge slot 8, and the dustproof net 15 is fixed to the outside of the discharge slot 8 by screws to prevent dust from blocking the discharge port and ensure that the discharge port is unobstructed.

[0028] From the above, it can be generally known that the safety device of the low-voltage switch cabinet adopts a safety module with a pre-processing function arranged inside the cabinet. The safety module is arranged in the switch cabinet with an integral frame, which is convenient for disassembly and assembly. At the same time, the internal environment of the switch cabinet is detected by temperature detection. If it is not handled in time after the alarm, and the temperature detection finds an abnormality, the safety module will release protective gas to extinguish the fire and protect the internal environment of the switch cabinet. It can handle the situation that cannot be handled manually in time to protect electrical safety.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A safety device for a low-voltage switch cabinet, comprising a cabinet housing (1), wherein the cabinet housing (1) is a square inner cavity housing, one side of the cabinet housing (1) is open and a cabinet door (2) is hinged on the opening, and an alarm (3) is arranged on the cabinet housing (1), characterized in that: A containing shell (4) is provided at a corner of the cabinet casing (1); A sealed storage tank (5) is contained in the containing shell (4), a control valve is provided on the tank opening of the sealed storage tank (5), the control valve is an electromagnetic valve (6), a storage battery (7) is connected to the control valve, and a discharge groove (8) is provided on one side of the containing shell (4), the discharge groove (8) is connected to the tank opening of the sealed storage tank (5); A temperature sensor controller (9) is connected between the control valve and the storage battery (7), and the temperature sensor controller (9) is arranged on the outer wall of the containing shell (4); A connecting pipe (10) is provided on the tank opening of the sealed storage tank (5) and is connected to the discharge groove (8); a guide cover (11) with a conical structure is provided at the end of the connecting pipe (10) and is connected to the discharge port.

2. A safety device for a low-voltage switch cabinet according to claim 1, characterized in that: A connecting joint (12) is provided on the end of the sealed storage tank (5) and is threadedly connected to the control valve, and a manual valve (13) is provided on the connecting joint (12).

3. A safety device for a low-voltage switch cabinet according to claim 2, characterized in that: The size of one end of the guide cover body (11) connected to the communication pipe (10) is smaller than the size of the other end connected to the discharge port.

4. A safety device for a low-voltage switch cabinet according to claim 3, characterized in that: A fastening frame (14) for fixing the sealed storage tank (5) is arranged inside the containing shell (4).

5. A safety device for a low-voltage switch cabinet according to claim 4, characterized in that: A dustproof net (15) is installed on one side of the discharge slot (8), and the dustproof net (15) is fixed to the outside of the discharge slot (8) by screws.

6. A safety device for a low-voltage switch cabinet according to claim 5, characterized in that: An inspection door is hingedly connected to one side opening of the containing shell (4), and the inspection door is connected to the containing shell (4) via a lock.

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