Protection mechanism for electric power system

Abstract

The utility model discloses a protection mechanism for an electric power system, which comprises an electric power cabinet and an equipment cabinet, the equipment cabinet is fixed at the top of the electric power cabinet, the center of the top of the electric power cabinet is provided with a vent hole, the center of the vent hole is provided with a communicating pipe, and two sides in the equipment cabinet are provided with carbon dioxide tanks. One end of the carbon dioxide tank communicates with a connecting male head matched with the connecting female head, the bottom end of the communicating pipe extends into the power cabinet and communicates with a second three-way connector, the two ends of the second three-way connector communicate with fire extinguishing pipes, a temperature sensor and a smoke sensor are further arranged on the inner wall of the power cabinet, and a breather pipe is arranged at the top of the equipment cabinet; a cooling fan is fixedly connected in the vent pipe through a fixing frame, a wire breaking mechanism is arranged at the bottom of one side of the power cabinet, and an air inlet hole is further formed in the other side of the power cabinet. According to the protection mechanism for the electric power system, fire extinguishing and power failure in a cabinet can be rapidly achieved when a fire breaks out, and meanwhile the protection mechanism has a heat dissipation function during normal use.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power equipment, in particular to a protection mechanism for an electric power system. Background Art

[0002] The power system is a unified system composed of power generation, transformation, transmission, distribution, power consumption and other equipment and corresponding auxiliary systems according to the specified technical and economic requirements. The basic task of the power system is to safely, reliably, high-quality and economically produce, transmit and distribute electric energy to meet the needs of the national economy and people's lives. The distribution cabinet is an important part of the power system. However, the existing distribution cabinet may catch fire due to overload, short circuit, poor contact, aging of electrical components, environmental factors, improper human operation, etc. Although a power fireproof cabinet is disclosed in the publication number CN219394072U, the sand sprayed out covers every corner of the cabinet, so that the sand completely covers the flame, which is conducive to quickly extinguishing the flame and greatly improves the fire extinguishing effect. However, due to the limited amount of sand, this power cabinet is difficult to fill every corner of the cabinet, and the fire extinguishing effect is only good for the fire source at the bottom position. At the same time, there are problems such as inconvenience for later cleaning and failure to cut off the power in time. Utility Model Content

[0003] In order to solve the above-mentioned defects, the utility model provides a protection mechanism for an electric power system, which can quickly extinguish the fire in the cabinet and cut off the power supply when a fire occurs, and also has a heat dissipation function during normal use.

[0004] In order to achieve the above-mentioned purpose, the technical solution provided by the utility model is a protection mechanism for an electric power system, comprising a power cabinet and an equipment cabinet, wherein the equipment cabinet is fixed on the top of the power cabinet, a vent hole is arranged in the center of the top of the power cabinet, a connecting pipe is arranged in the center of the vent hole, the top end of the connecting pipe extends into the equipment cabinet and is connected with a three-way joint 1, both ends of the three-way joint 1 are connected with a connecting female head, carbon dioxide tanks are arranged on both sides of the interior of the equipment cabinet, one end of the carbon dioxide tank is connected with a connecting male head adapted to the connecting female head, and the connecting pipe The bottom end of the connecting pipe extends into the power cabinet and is connected with three-way joint 2, an electromagnetic valve is provided in the middle of the connecting pipe, both ends of the three-way joint 2 are connected with fire extinguishing pipes, and a nozzle is provided on the surface of the fire extinguishing pipe. The inner wall of the power cabinet is also provided with a temperature sensor and a smoke sensor, and the top of the inner wall of the equipment cabinet is provided with a controller, a charging module and a power supply module. The top of the equipment cabinet is provided with a ventilation pipe, and a cooling fan is fixedly connected to the ventilation pipe through a fixing frame. A disconnecting mechanism is provided at the bottom of one side of the power cabinet, and an air inlet is also provided on the other side of the power cabinet.

[0005] As a further solution of the utility model: a fixing base for fixing the carbon dioxide tank is provided at the bottom of the inner wall of the equipment cabinet, and the fire extinguishing pipe extends to the bottom of the power cabinet along the height direction of the power cabinet, and the fire extinguishing pipe is fixed to the inner wall of the power cabinet.

[0006] As a further solution of the utility model: the wire breaking mechanism includes a fixed cylinder, a first connecting seat is fixedly connected to the interior of the fixed cylinder, a metal column 1 is arranged in the first connecting seat, a second connecting seat is arranged on one side of the fixed cylinder, a metal column 2 corresponding to the position of the metal column 1 is arranged in the second connecting seat, a sealing cover is also threadedly connected to one side of the second connecting seat, a limiting ring is fixedly connected to the surface of the second connecting seat, a fixing hook for fixing the limiting ring is symmetrically arranged on the inner wall of the fixed cylinder, a first electric telescopic rod is arranged on one side of the inner wall of the fixed cylinder, a push rod is fixedly connected to the working end of the first electric telescopic rod, a fixing pin is fixedly connected to the surface of the push rod, a transmission hole is arranged on one side of the fixing hook, and the fixing pin is transmission-connected to the transmission hole.

[0007] As a further solution of the utility model: a through hole adapted to the fixing hook and the push rod is provided on one side of the fixing cylinder, wiring holes are provided at one end of the metal column one and the metal column two, a groove is provided on one side of the inner wall of the first connecting seat, and the surface of the sealing cover is provided with the same number of sealing rubber sleeves as that of the metal column two.

[0008] As a further solution of the utility model: a baffle is slidably connected to the inner wall of the power cabinet at a position corresponding to the air inlet, and a second electric telescopic rod is provided on the inner wall of the power cabinet to drive the baffle to move along the height direction of the power cabinet.

[0009] As a further solution of the utility model: the top of the ventilation pipe is connected to an exhaust pipe, the exhaust pipe is arranged horizontally, and check valves are arranged at both ends of the exhaust pipe.

[0010] As a further solution of the utility model: a valve is arranged at one end of the carbon dioxide tank, and a one-way valve is arranged between the two ends of the three-way connector and the connecting female head.

[0011] As a further solution of the present invention: the temperature sensor and the smoke sensor are electrically connected to the input end of the controller, the output end of the controller is electrically connected to the first electric telescopic rod, the second electric telescopic rod, the electromagnetic valve and the cooling fan respectively, and the power supply module is used to supply power to the controller, the first electric telescopic rod, the second electric telescopic rod, the electromagnetic valve and the cooling fan.

[0012] The utility model adopts the above technical scheme, and the beneficial effects include: the protection mechanism for the power system, the temperature sensor and the smoke sensor arranged in the power cabinet can detect the environment inside the cabinet, when the fire generates smoke and the temperature rises, through the operation of the electromagnetic valve, the carbon dioxide in the carbon dioxide tank will be sprayed out from the nozzle to fill the cabinet to achieve fire extinguishing, which is convenient for subsequent cleaning; when a fire occurs, the first electric telescopic rod is started, and the first connecting seat is separated from the second connecting seat through the movement of the push rod and the rotation of the fixed hook, thereby achieving power off; the cooling fan set at the same time is started when the internal temperature rises to achieve heat dissipation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 For this utility model Figure 1 Enlarged view of point A in the middle;

[0015] Figure 3 For this utility model Figure 1 Enlarged view of point B in the middle;

[0016] Figure 4 This is a structural schematic diagram of the wire breaking mechanism of the utility model;

[0017] Figure 5 It is a schematic diagram of the internal structure of the fixed cylinder of the utility model.

[0018] In the figure: 1-power cabinet, 2-equipment cabinet, 3-carbon dioxide tank, 31-valve, 4-fixed card seat, 5-vent, 6-connecting pipe, 7-three-way connector one, 8-connecting female head, 9-connecting male head, 10-three-way connector two, 11-electromagnetic valve, 12-fire extinguishing pipe, 13-sprinkler, 14-temperature sensor, 15-smoke sensor, 16-controller, 17-charging module, 18-power module, 19-ventilation pipe, 20-cooling fan, 21-exhaust pipe, 22-check valve, 23-breaking mechanism, 231-fixed cylinder, 232-first connecting seat, 233-fixed hook, 234-metal column one, 235-second connecting seat, 236-metal column two, 237-sealing cover, 238-sealing rubber sleeve, 239-limiting ring, 2310-first electric telescopic rod, 2311-push rod, 2312-fixing pin,

[0019] 2313 - transmission hole, 2314 - groove, 24 - air inlet, 25 - one-way valve, 26 - baffle, 27 - second electric telescopic rod. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings.

[0021] Example 1: Please refer to Figure 1-5 The utility model provides a technical solution: a protection mechanism for an electric power system, comprising a power cabinet 1 and an equipment cabinet 2, the equipment cabinet 2 is fixed on the top of the power cabinet 1, a vent hole 5 is arranged in the center of the top of the power cabinet 1, the power cabinet 1 and the equipment cabinet 2 are connected through the vent hole 5, a connecting pipe 6 is arranged in the center of the vent hole 5, the top of the connecting pipe 6 extends into the equipment cabinet 2 and is connected with a three-way joint 7, both ends of the three-way joint 7 are connected with a connecting female head 8, a carbon dioxide tank 3 is arranged on both sides of the equipment cabinet 2, the carbon dioxide tank 3 is filled with carbon dioxide, a fixing seat 4 for fixing the carbon dioxide tank 3 is arranged at the bottom of the inner wall of the equipment cabinet 2, one end of the carbon dioxide tank 3 is connected with a connecting male head 9 adapted to the connecting female head 8, and the quick connection between the carbon dioxide tank 3 and the connecting joint 7 is realized by setting the connecting female head 8 and the connecting male head 9;

[0022] The bottom end of the connecting pipe 6 extends into the power cabinet 1 and is connected to a three-way joint 10. An electromagnetic valve 11 is arranged in the middle of the connecting pipe 6. The electromagnetic valve 11 adopts a normally closed electromagnetic valve. Both ends of the three-way joint 10 are connected to a fire extinguishing pipe 12. The fire extinguishing pipe 12 adopts a steel pipe. The fire extinguishing pipe 12 extends along the height direction of the power cabinet 1 to the bottom of the power cabinet 1. The fire extinguishing pipe 12 is fixed to the inner wall of the power cabinet 1. A nozzle 13 is arranged on the surface of the fire extinguishing pipe 12. The carbon dioxide in the carbon dioxide tank 3 is sprayed from the nozzle 13 through the fire extinguishing pipe 12, so that the power cabinet 1 is filled with carbon dioxide, thereby preventing combustion and achieving the purpose of extinguishing the fire.

[0023] A disconnection mechanism 23 is provided at the bottom of one side of the power cabinet 1. The disconnection mechanism 23 includes a fixing cylinder 231. A first connection seat 232 is fixedly connected inside the fixing cylinder 231. A metal column 1 234 is provided in the first connection seat 232. A second connection seat 235 is provided on one side of the fixing cylinder 231. A metal column 236 corresponding to the position of the metal column 1 234 is provided in the second connection seat 235. Wiring holes are provided at one end of the metal column 1 234 and the metal column 2 236. The wiring holes are connected to the cables. When one end of the second connection seat 235 is inserted into the first connection seat 232, one end of the metal column 1 234 and one end of the metal column 2 236 are in contact to achieve electrical conduction. The first connection seat 232 and the second connection seat 235 are made of insulating materials, such as ceramics, insulating rubber and the like. The metal column 1 234 and the metal column 2 236 can be made of copper. In order to facilitate wiring, numbers are provided on the surfaces of the metal column 1 234 and the metal column 2 236.

[0024] A sealing cover 237 is also threadedly connected to one side of the second connection seat 235. The surface of the sealing cover 237 is provided with sealing rubber sleeves 238 of the same number as the second metal pillars 236. The cable passes through the sealing rubber sleeves 238 to achieve sealing, so as to prevent the terminal from being exposed to the outside.

[0025] The surface of the second connecting seat 235 is fixedly connected to a limiting ring 239. When one side of the limiting ring 239 is in close contact with the surface of one end of the fixed cylinder 231, one end of the metal column 1 234 and one end of the metal column 2 236 are in contact, thereby ensuring the connection stability. The inner wall of the fixed cylinder 231 is symmetrically provided with fixing hooks 233 for fixing the limiting ring 239. The fixing hooks 233 make one side of the limiting ring 239 in close contact with the surface of one end of the fixed cylinder 231. A first electric telescopic rod 2310 is provided on one side of the inner wall of the fixed cylinder 231. A push rod 2311 is fixedly connected to the working end of the first electric telescopic rod 2310. The moving direction of the push rod 2311 is the axial direction of the fixed cylinder 231. A fixing pin 2312 is fixedly connected to the surface of the push rod 2311, and a transmission hole 2313 is provided on one side of the fixing hook 233. The fixing pin 2312 is transmission-connected to the transmission hole 2313. The first electric telescopic rod 2310 drives the push rod 2311 to move, and drives the fixing hook 233 to rotate around its rotation center through the fixing pin 2312, so as to realize the separation of the fixing hook 233 and the limiting ring 239. After the separation, as the push rod 2311 continues to move, one end of the push rod 2311 contacts one side of the limiting ring 239, and finally the push rod 2311 continues to move, pushing the limiting ring 239, so that the second connecting seat 235 is separated from the first connecting seat 232, thereby realizing power off.

[0026] A through hole adapted to the fixing hook 233 and the push rod 2311 is provided on one side of the fixing cylinder 231, thereby ensuring the movement of the fixing hook 233 and the push rod 2311; a groove 2314 is provided on one side of the inner wall of the first connecting seat 232; a protrusion adapted to the groove 2314 is provided on the surface of the second connecting seat 235, thereby ensuring a one-to-one correspondence between the metal column 1 234 and the metal column 2 236 during connection, thereby ensuring the safety of the connection.

[0027] An air inlet 24 is also provided on the other side of the power cabinet 1. A baffle 26 is slidably connected to the inner wall of the power cabinet 1 and located at a position corresponding to the air inlet 24. A second electric telescopic rod 27 is provided on the inner wall of the power cabinet 1 to drive the baffle 26 to move along the height direction of the power cabinet 1. Air is taken in through the air inlet 24 during normal operation, which is convenient for heat dissipation inside the power cabinet 1. When a fire occurs, the second electric telescopic rod 27 moves to block the air inlet 24, thereby preventing the entry of air and reducing the leakage of carbon dioxide.

[0028] A ventilation pipe 19 is arranged on the top of the equipment cabinet 2, and a cooling fan 20 is fixedly connected to the ventilation pipe 19 through a fixing frame. The top of the ventilation pipe 19 is connected to an exhaust pipe 21, and the exhaust pipe 21 is arranged horizontally. Check valves 22 are arranged at both ends of the exhaust pipe 21. When the cooling fan 20 is started, the air pressure on one side of the check valve 22 increases, and the check valve 22 is connected to discharge the air in the power cabinet 1, and the outside air enters the power cabinet 1 from the air inlet 24, so as to realize air circulation and facilitate heat dissipation.

[0029] A valve 31 is provided at one end of the carbon dioxide tank 3, and the valve 31 is opened after the female connector 8 is connected to the male connector 9. A one-way valve 25 is provided between the two ends of the three-way connector 7 and the female connector 8 to ensure the one-way flow of carbon dioxide gas.

[0030] The inner wall of the power cabinet 1 is also provided with a temperature sensor 14 and a smoke sensor 15. The top of the inner wall of the equipment cabinet 2 is provided with a controller 16, a charging module 17 and a power module 18. The surface of the controller 16 is provided with a control button. The temperature sensor 14 and the smoke sensor 15 are electrically connected to the input end of the controller 16. The output end of the controller 16 is electrically connected to the first electric telescopic rod 2310, the second electric telescopic rod 27, the electromagnetic valve 11 and the cooling fan 20 respectively. The power module 18 is used for powering the controller 16, the first electric telescopic rod 2310, the second electric telescopic rod 27, the electromagnetic valve 11 and the cooling fan 20. Module 17 charges the power module 18, and the power module 18 is set as an independent power supply and is set in the equipment cabinet 2 to ensure normal power supply in case of fire; when the temperature sensor 14 and the smoke sensor 15 detect that there is smoke inside the cabinet 1 and the temperature is higher than the set value, a signal is sent to the controller 16, and the controller 16 controls the electromagnetic valve 11 to open, and the first electric telescopic rod 2310 and the second electric telescopic rod 27 start to extend to achieve fire extinguishing; when the temperature sensor 14 detects that the temperature inside the cabinet 1 is higher than the set value, and the smoke sensor 15 detects that the temperature inside the cabinet 1 is lower than the set value, the cooling fan 20 is started to achieve heat dissipation.

[0031] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0032] The above description is only a preferred embodiment of the prior art type of fixing and installation of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A protection mechanism for a power system, comprising a power cabinet (1) and an equipment cabinet (2), characterized in that: The equipment cabinet (2) is fixed on the top of the power cabinet (1). A vent hole (5) is provided in the center of the top of the power cabinet (1). A connecting pipe (6) is provided in the center of the vent hole (5). The top of the connecting pipe (6) extends into the equipment cabinet (2) and is connected to a three-way joint (7). Both ends of the three-way joint (7) are connected to a female connector (8). Carbon dioxide tanks (3) are provided on both sides of the interior of the equipment cabinet (2). One end of the carbon dioxide tank (3) is connected to a male connector (9) adapted to the female connector (8). The bottom end of the connecting pipe (6) extends into the power cabinet (1) and is connected to a three-way joint (10). The middle of the connecting pipe (6) is provided with a The invention relates to a solenoid valve (11), wherein both ends of the two-way joint (10) are connected to a fire extinguishing pipe (12), and a nozzle (13) is arranged on the surface of the fire extinguishing pipe (12). The inner wall of the power cabinet (1) is also provided with a temperature sensor (14) and a smoke sensor (15). The top of the inner wall of the equipment cabinet (2) is provided with a controller (16), a charging module (17) and a power module (18). The top of the equipment cabinet (2) is provided with a ventilation pipe (19), and a cooling fan (20) is fixedly connected to the ventilation pipe (19) through a fixing frame. A disconnection mechanism (23) is arranged at the bottom of one side of the power cabinet (1), and an air inlet (24) is also arranged on the other side of the power cabinet (1).

2. A protection mechanism for a power system according to claim 1, characterized in that: A fixing base (4) for fixing a carbon dioxide tank (3) is provided at the bottom of the inner wall of the equipment cabinet (2); the fire extinguishing pipe (12) extends along the height direction of the power cabinet (1) to the bottom of the power cabinet (1); and the fire extinguishing pipe (12) is fixed to the inner wall of the power cabinet (1).

3. A protection mechanism for a power system according to claim 1, characterized in that: The wire breaking mechanism (23) comprises a fixing cylinder (231), the interior of the fixing cylinder (231) is fixedly connected to a first connecting seat (232), a metal column 1 (234) is arranged in the first connecting seat (232), a second connecting seat (235) is arranged on one side of the fixing cylinder (231), a metal column 2 (236) corresponding to the position of the metal column 1 (234) is arranged in the second connecting seat (235), a sealing cover (237) is also threadedly connected to one side of the second connecting seat (235), and a surface of the second connecting seat (235) is fixedly connected to the sealing cover (237). A limit ring (239) is provided, and a fixing hook (233) for fixing the limit ring (239) is symmetrically arranged on the inner wall of the fixing cylinder (231), and a first electric telescopic rod (2310) is arranged on one side of the inner wall of the fixing cylinder (231), and a push rod (2311) is fixedly connected to the working end of the first electric telescopic rod (2310), and a fixing pin (2312) is fixedly connected to the surface of the push rod (2311), and a transmission hole (2313) is provided on one side of the fixing hook (233), and the fixing pin (2312) is transmission-connected to the transmission hole (2313).

4. A protection mechanism for an electric power system according to claim 3, characterized in that: A through hole adapted to the fixing hook (233) and the push rod (2311) is provided on one side of the fixing cylinder (231), a wiring hole is provided on one end of the metal column 1 (234) and the metal column 2 (236), a groove (2314) is provided on one side of the inner wall of the first connecting seat (232), and the surface of the sealing cover (237) is provided with sealing rubber sleeves (238) of the same number as the metal column 2 (236).

5. A protection mechanism for a power system according to claim 3, characterized in that: A baffle (26) is slidably connected to the inner wall of the power cabinet (1) at a position corresponding to the air inlet (24), and a second electric telescopic rod (27) is provided on the inner wall of the power cabinet (1) for driving the baffle (26) to move in the height direction of the power cabinet (1).

6. A protection mechanism for a power system according to claim 1, characterized in that: The top of the ventilation pipe (19) is connected to an exhaust pipe (21), the exhaust pipe (21) is arranged horizontally, and check valves (22) are arranged at both ends of the exhaust pipe (21).

7. A protection mechanism for a power system according to claim 1, characterized in that: A valve (31) is provided at one end of the carbon dioxide tank (3), and a one-way valve (25) is provided between the two ends of the three-way connector (7) and the female connector (8).

8. A protection mechanism for an electric power system according to claim 5, characterized in that: The temperature sensor (14) and the smoke sensor (15) are electrically connected to the input end of the controller (16); the output end of the controller (16) is electrically connected to the first electric telescopic rod (2310), the second electric telescopic rod (27), the electromagnetic valve (11) and the cooling fan (20), respectively; and the power module (18) is used to supply power to the controller (16), the first electric telescopic rod (2310), the second electric telescopic rod (27), the electromagnetic valve (11) and the cooling fan (20).

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