Fireproof high-voltage switch cabinet

Abstract

The utility model discloses a fireproof high-voltage switch cabinet, which comprises a cabinet body, wire harness racks are symmetrically connected to positions, far away from the middle part, in the cabinet body through bolts, the opposite surfaces of the two wire harness racks are slidably connected with electric appliance mounting racks, and the position, close to the front wall, of the opposite wall of one of the wire harness racks is connected with a cabinet door through a hinge. According to the high-voltage switch cabinet, the temperature detectors with different heights are arranged in the high-voltage switch cabinet, so that the high-voltage switch cabinet can quickly detect the positions of ignition points at different heights of the switch cabinet, the fire extinguishing efficiency of the ignition points is improved, large-area combustion is prevented, meanwhile, the auxiliary fire extinguishing assembly is arranged on the side wall of the switch cabinet, and the fire extinguishing efficiency is improved. According to the switch cabinet, air entering the switch cabinet can be isolated, external air entering the switch cabinet is reduced, so that oxygen in the switch cabinet is rapidly reduced, the switch cabinet is matched with a fire extinguishing device to rapidly extinguish an internal ignition point, and the internal loss of the switch cabinet is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of switch cabinet application, in particular to a fireproof high-voltage switch cabinet. Background Art

[0002] High-voltage switchgear refers to the switchgear used for power generation, transmission, distribution, power conversion and consumption in the power system, and plays the role of switching, control or protection. High-voltage switchgear is divided into several categories according to the voltage level of 3.6kV to 550kV electrical products, such as high-voltage disconnectors and grounding switches, high-voltage load switches, high-voltage automatic reclosing and sectionalizers, high-voltage operating mechanisms, high-voltage explosion-proof distribution devices and high-voltage switchgear.

[0003] When the existing high-voltage switch cabinet is used for a long time, due to the internal high temperature factor, the switch cabinet will inevitably have an internal fire. The current means of extinguishing the internal fire point of the switch cabinet generally only uses a single temperature detector to detect the internal temperature of the cabinet, thereby starting the fire extinguisher to spray and extinguish the fire. The switch cabinet is large, and the fire point cannot be determined at a certain place. Therefore, when a fire occurs at a location far away from the temperature detector, it cannot be detected in time, which will increase the burning time and expand the loss to the switch cabinet. At the same time as the fire is extinguished, the air around the switch cabinet will continuously flow into the interior of the switch cabinet, providing oxygen for the fire point, which increases the extinguishing time of the fire point. Therefore, the utility model proposes a fireproof high-voltage switch cabinet. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a fireproof high-voltage switch cabinet. By arranging temperature detectors at different heights inside the high-voltage switch cabinet, it is possible to quickly detect the positions of ignition points at different heights of the switch cabinet, thereby improving the fire extinguishing efficiency of the ignition point and preventing large-scale combustion. At the same time, an auxiliary fire extinguishing component is arranged on the side wall of the switch cabinet, so that it can isolate the air entering the switch cabinet and reduce the external air entering the interior of the switch cabinet, thereby quickly reducing the oxygen inside the switch cabinet, and then cooperating with the fire extinguishing device to quickly extinguish the internal ignition point of the switch cabinet, thereby reducing the loss inside the switch cabinet.

[0005] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a fireproof high-voltage switchgear, including a cabinet body, wherein a wiring harness rack is symmetrically bolted to the inside of the cabinet body away from the middle position, and the opposite surfaces of the two wiring harness racks are slidably connected to an electrical installation rack, wherein the opposite wall of one of the wiring harness racks is hingedly connected to a cabinet door near the front wall, and the other side of the cabinet door is snap-fittedly connected to the side wall of the other wiring harness rack, a fire-fighting equipment fire extinguishing assembly is fixedly connected to the top of the cabinet body, a ventilation rack is symmetrically bolted to the side wall of the cabinet body, and an air isolation assembly is fixedly connected to the middle position of the opposite walls of the two ventilation racks.

[0006] The utility model is further configured as follows: a wire inlet and outlet hole is opened at a middle position of the bottom of the rear wall of the cabinet, and a positioning horizontal bar is symmetrically fixedly connected to the bottom of the cabinet near the side wall.

[0007] Through the above technical solution, the external wiring harness can be positioned and fixed in a certain position by using the wire entry and exit holes to prevent the wiring harness from being entangled with each other and placed in a disorderly manner, and the positioning bar can keep the bottom of the entire cabinet away from the ground, thereby avoiding damage to the bottom of the cabinet.

[0008] The utility model is further configured as follows: the side walls of the two wiring harness racks are provided with wire threading grooves near the bottom, the two wiring harness racks are provided with multiple groups of heat dissipation holes near the middle, the middle positions of the two wiring harness racks are provided with multiple positioning wire holes, the opposite sides of the two wiring harness racks are hingedly connected with multiple positioning racks, the opposite sides of the two wiring harness racks and at positions corresponding to the positioning racks are fixedly connected with positioning buckles, and are respectively snap-fittedly connected with the multiple positioning racks.

[0009] Through the above technical solution, it is convenient for the wiring harness entering the switch cabinet to pass through the wire groove and the space far away from the equipment installation, thereby reducing the influence of high temperature on the wiring harness. At the same time, the mutual coordination of multiple positioning frames and positioning wire holes is improved, and the installed wiring harness can be arranged in an orderly manner to improve the overall aesthetics.

[0010] The utility model is further configured as follows: the opposite surfaces of the two harness racks and away from the middle position are symmetrically fixedly connected with guide rails, the two side walls of the electrical installation rack are symmetrically provided with guide grooves away from the middle position, and the two groups of guide grooves are respectively slidably connected to the two groups of guide rails.

[0011] The above technical solution facilitates the pushing and pulling of multiple devices on the electrical installation rack when installing them, avoids the workers from entering the interior of the switch cabinet, and increases the activity space during maintenance.

[0012] The utility model is further configured as follows: a lock buckle is fixedly connected to the front wall of the cabinet door near the middle of the side wall, an observation window is opened near the top of the front wall of the cabinet door, and transparent glass is snap-connected inside.

[0013] The above technical solution makes it easy for the staff to fix the cabinet door on the wiring harness rack through the lock, so as to seal and protect the inside of the cabinet. At the same time, the staff can quickly observe the situation inside the cabinet through the observation window.

[0014] The utility model is further configured as follows: the fire-fighting equipment fire-extinguishing assembly includes a fire extinguisher installed on the top of a cabinet, the end surface outlet of the fire extinguisher is fixedly connected to a conduit, the end surface of the conduit is fixedly connected to a fixed pipe, and the fixed pipe passes through and is fixed at the top center of the cabinet, the bottom of the fixed pipe is fixedly connected to an expansion spray head, and the inner rear wall of the cabinet is symmetrically fixedly connected to temperature detectors near the top and bottom, and the two temperature detectors are electrically connected to the fire extinguisher.

[0015] Through the above technical solution, multiple internal temperature detectors are used to detect the high temperature generated when a fire occurs inside the switch cabinet, thereby improving the electrical connection to start the fire extinguisher, so that the carbon dioxide inside the fire extinguisher can be quickly sprayed into the switch cabinet through the expansion spray head at the bottom of the fixed pipe, thereby quickly extinguishing the internal fire point.

[0016] The utility model is further configured as follows: a plurality of ventilation holes are symmetrically provided near the middle of the side walls of the two ventilation racks.

[0017] The above technical solution facilitates the dissipation of heat generated by the entire switch cabinet during use, thereby reducing the temperature inside the switch cabinet.

[0018] The utility model is further configured as follows: the air isolation component includes a drive motor bolted to the middle position of the ventilation frame, the drive shaft of the drive motor is fixedly connected to a commutator, the two output ends of the commutator are fixedly connected to a worm, the outer walls of the two worms are meshingly connected to worm wheels, the inner walls of the two worm wheels are interference connected to a rotating shaft, the outer walls of the two rotating shafts are fixedly connected to a rotating plate, and the two rotating plates are fixedly connected to a rubber layer on one side close to the ventilation frame.

[0019] Through the above technical scheme, the driving motor driving shaft is used to rotate to drive the two output shafts inside the commutator to rotate, so that the two worms drive the rotation of the two worm wheels, thereby driving the rotating shaft to rotate on the positioning block, so that the rotating plate on the rotating shaft rotates, driving the rubber layer to cover the ventilation holes on the ventilation frame, thereby closing the ventilation holes and isolating the air.

[0020] The utility model is further configured as follows: the end surfaces of the two groups of rotating shafts are rotatably connected with positioning blocks, and the two groups of positioning blocks are fixedly connected to the ventilation frame.

[0021] The above technical solution facilitates the fixing of the position of the rotating shaft when it is driven, and enables it to rotate stably to prevent it from getting stuck during rotation.

[0022] The beneficial effects of the utility model are as follows:

[0023] 1. The fireproof high-voltage switchgear proposed by the utility model is equipped with temperature detectors at different heights inside the high-voltage switchgear, so that the positions of fire points at different heights of the switchgear can be quickly detected, thereby improving the fire extinguishing efficiency of the fire point and preventing large-scale combustion;

[0024] 2. The utility model proposes a fireproof high-voltage switch cabinet, which is equipped with an auxiliary fire extinguishing component on the side wall of the switch cabinet, so that the air entering the switch cabinet can be isolated, and the external air can be reduced to the interior of the switch cabinet, so that the oxygen inside the switch cabinet can be reduced rapidly, and then the fire extinguishing device can be used to quickly extinguish the internal fire point of the switch cabinet, so as to reduce the loss inside the switch cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is the first structural diagram of a fireproof high-voltage switchgear of the utility model;

[0026] Figure 2 This is a second structural diagram of a fireproof high-voltage switch cabinet of the utility model;

[0027] Figure 3 This is the internal structure diagram of a fireproof high-voltage switch cabinet of the utility model;

[0028] Figure 4 This is the first explosion diagram of a fireproof high-voltage switch cabinet of the utility model;

[0029] Figure 5 This is a second explosion diagram of a fireproof high-voltage switch cabinet of the utility model;

[0030] Figure 6 This is a first structural diagram of a wire harness rack in a fireproof high-voltage switch cabinet of the utility model;

[0031] Figure 7 This is a second structural diagram of a wire harness rack in a fireproof high-voltage switch cabinet of the utility model;

[0032] Figure 8 This is the first exploded view of an air isolation component in a fireproof high-voltage switch cabinet of the utility model;

[0033] Fig. 9 This is a second exploded view of an air isolation component in a fireproof high-voltage switch cabinet of the utility model;

[0034] Fig.10 for Figure 8 Enlarged view of point A in the middle.

[0035] In the figure:

[0036] 1. Cabinet body; 11. Wire inlet and outlet holes; 12. Positioning bar;

[0037] 2. Wire harness rack; 21. Wire threading slot; 22. Heat dissipation hole; 23. Positioning wire hole; 24. Positioning rack; 25. Positioning buckle; 26. Guide rail;

[0038] 3. Electrical appliance mounting frame; 31. Guide groove;

[0039] 4. Cabinet door; 41. Lock; 42. Observation window;

[0040] 5. Fire-fighting equipment fire-fighting components; 51. Fire extinguisher; 52. Conduit; 53. Fixed pipe; 54. Expansion sprinkler head; 55. Temperature detector;

[0041] 6. Ventilation rack; 61. Ventilation hole;

[0042] 7. Air isolation assembly; 71. Driving motor; 72. Commutator; 73. Worm; 74. Worm wheel; 75. Rotating shaft; 76. Rotating plate; 77. Rubber layer; 78. Positioning block. DETAILED DESCRIPTION

[0043] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0044] like Figure 1 and Figure 2 As shown, a fireproof high-voltage switchgear comprises a cabinet 1, a rear wall of the cabinet 1 is provided with an inlet and outlet hole 11 near the middle of the bottom, and a positioning bar 12 is symmetrically fixedly connected to the bottom of the cabinet 1 near the side wall. The inlet and outlet hole 11 can be used to position and fix the external wiring harness at a certain position to prevent the wiring harness from being entangled with each other and placed in a disorderly manner, and the positioning bar 12 can keep the bottom of the entire cabinet 1 away from the ground, thereby avoiding damage to the bottom of the cabinet 1.

[0045] like Figure 6 and Figure 7As shown, the inside of the cabinet 1 is symmetrically bolted with a harness rack 2 away from the middle position, and the side walls of the two harness racks 2 are provided with a threading groove 21 near the bottom position, and the two harness racks 2 are provided with a plurality of heat dissipation holes 22 near the middle position, and the middle position of the two harness racks 2 is provided with a plurality of positioning wire holes 23, and the opposite sides of the two harness racks 2 are hinged with a plurality of positioning racks 24, and the opposite sides of the two harness racks 2 and the corresponding positions of the positioning racks 24 are fixedly connected with positioning buckles 25, and are respectively connected with the plurality of positioning racks 24 in a snap-fit ​​connection, so that the harness entering the switch cabinet can pass through the threading groove 21 through the space away from the equipment installation, thereby reducing the high temperature to the harness The influence of the above mentioned effects is improved, and the mutual coordination of the multiple positioning frames 24 and the positioning wire holes 23 is improved, so that the installed wire harnesses can be arranged in an orderly manner, thereby improving the overall aesthetics. The opposite surfaces of the two wire harness frames 2 and away from the central position are symmetrically fixedly connected with guide rails 26, and the opposite surfaces of the two wire harness frames 2 are slidably connected with electrical installation frames 3. The two side walls of the electrical installation frames 3 are symmetrically provided with guide grooves 31 away from the central position, and the two groups of guide grooves 31 are respectively slidably connected with the two groups of guide rails 26, which is convenient for pushing and pulling the multiple equipment on the electrical installation frames 3 when installing, avoiding the staff from entering the interior of the switch cabinet, and increasing the activity space during maintenance.

[0046] like Figure 1 and Fig. 9 As shown, the relative wall of one of the wiring harness racks 2 is hingedly connected to the cabinet door 4 near the front wall, and the other side of the cabinet door 4 is snap-connected to the side wall of the other wiring harness rack 2, and the front wall of the cabinet door 4 is fixedly connected with a lock buckle 41 near the middle of the side wall, and the front wall of the cabinet door 4 is provided with an observation window 42 near the top, and transparent glass is snap-connected inside, so that the staff can fix the cabinet door 4 on the wiring harness rack 2 through the lock buckle 41, so that the inside of the cabinet body 1 can be sealed and protected, and the staff can quickly observe the situation inside the cabinet body 1 through the observation window 42, and the side walls of the cabinet body 1 are symmetrically bolted with ventilation racks 6, and the side walls of the two ventilation racks 6 are symmetrically provided with multiple ventilation holes 61 near the middle position, which is convenient for the heat generated by the entire switch cabinet during use to be dissipated, thereby reducing the temperature inside the switch cabinet.

[0047] like Figure 1-Figure 3As shown, a fire-fighting equipment fire-extinguishing assembly 5 is fixedly connected to the top of the cabinet 1, and the fire-fighting equipment fire-extinguishing assembly 5 includes a fire extinguisher 51 installed on the top of the cabinet 1, and an end surface outlet of the fire extinguisher 51 is fixedly connected to a conduit 52, and an end surface of the conduit 52 is fixedly connected to a fixed pipe 53, and the fixed pipe 53 passes through and is fixed at the top center of the cabinet 1, and an expansion spray head 54 is fixedly connected to the bottom of the fixed pipe 53, and a temperature detector 55 is symmetrically fixedly connected to the inner rear wall of the cabinet 1 near the top and bottom positions, and the two temperature detectors 55 are electrically connected to the fire extinguisher 51, and the internal multiple temperature detectors 55 are used to detect the high temperature generated when the switch cabinet is on fire, thereby improving the electrical connection to start the fire extinguisher 51, so that the carbon dioxide inside the fire extinguisher 51 can be quickly sprayed to the inside of the switch cabinet through the expansion spray head 54 at the bottom of the fixed pipe 53, and then the internal fire point can be quickly extinguished.

[0048] like Figure 8-Figure 10 As shown, the middle positions of the opposite walls of the two ventilation racks 6 are fixedly connected with air isolation components 7, and the air isolation components 7 include a driving motor 71 bolted to the middle position of the ventilation rack 6, and the driving shaft of the driving motor 71 is fixedly connected with a commutator 72, and the two output ends of the commutator 72 are fixedly connected with worms 73, and the outer walls of the two worms 73 are meshingly connected with worm wheels 74, and the inner walls of the two worm wheels 74 are interference connected with rotating shafts 75, and the end faces of the two groups of rotating shafts 75 are rotatably connected with positioning blocks 78, and the two groups of positioning blocks 78 are fixedly connected to the ventilation rack 6, so as to fix the position of the rotating shaft 75 when driving. At the same time, it can rotate stably to prevent it from getting stuck during rotation. The outer walls of the two rotating shafts 75 are fixedly connected with rotating plates 76, and the two rotating plates 76 are fixedly connected with rubber layers 77 on the side close to the ventilation frame 6. The driving shaft of the driving motor 71 is rotated to drive the two output shafts inside the commutator 72 to rotate, so that the two worm gears 73 drive the rotation of the two worm wheels 74, thereby driving the rotating shaft 75 to rotate on the positioning block 78, so that the rotating plate 76 on the rotating shaft 75 rotates, driving the rubber layer 77 to cover the ventilation holes 61 on the ventilation frame 6, thereby closing the ventilation holes 61 and isolating the air.

[0049] When the utility model is in use, the high temperature generated when the switch cabinet is on fire is first detected by using multiple internal temperature detectors 55, so as to improve the electrical connection to start the fire extinguisher 51, so that the carbon dioxide inside the fire extinguisher 51 can be quickly sprayed on the inside of the switch cabinet through the expansion spray head 54 at the bottom of the fixed tube 53, so as to quickly extinguish the internal fire point, and at the same time, the driving shaft of the driving motor 71 is used to rotate to drive the two output shafts inside the commutator 72 to rotate, so that the two worms 73 drive the two worm wheels 74 to rotate, thereby driving the rotating shaft 75 to rotate on the positioning block 78, so that the rotating plate 76 on the rotating shaft 75 is rotated, driving the rubber layer 77 to cover the ventilation holes 61 on the ventilation frame 6, thereby closing the ventilation holes 61 and isolating the air, so as to cooperate with the fire extinguisher 51 to quickly extinguish the fire point and reduce the loss to the cabinet body 1.

[0050] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A fireproof high-voltage switch cabinet, comprising a cabinet body (1), characterized in that: A wiring harness rack (2) is symmetrically bolted to the inside of the cabinet (1) away from the middle, and an electrical appliance mounting rack (3) is slidably connected to the opposite surfaces of the two wiring harness racks (2), and a cabinet door (4) is hingedly connected to the opposite wall of one of the wiring harness racks (2) near the front wall, and the other side of the cabinet door (4) is snap-fitted to the side wall of the other wiring harness rack (2), a fire-fighting equipment extinguishing assembly (5) is fixedly connected to the top of the cabinet (1), and a ventilation rack (6) is symmetrically bolted to the side wall of the cabinet (1), and an air isolation assembly (7) is fixedly connected to the middle of the opposite walls of the two ventilation racks (6).

2. A fireproof high voltage switch cabinet according to claim 1, characterized in that: A wire inlet and outlet hole (11) is provided on the rear wall of the cabinet body (1) near the middle of the bottom, and a positioning horizontal bar (12) is symmetrically fixedly connected to the bottom of the cabinet body (1) near the side wall.

3. A fireproof high voltage switch cabinet according to claim 1, characterized in that: The side walls of the two harness frames (2) are provided with a wire threading groove (21) near the bottom, the two harness frames (2) are provided with a plurality of heat dissipation holes (22) near the middle, the two harness frames (2) are provided with a plurality of positioning wire holes (23) in the middle, the opposite sides of the two harness frames (2) are hingedly connected to a plurality of positioning frames (24), and the opposite sides of the two harness frames (2) and at positions corresponding to the positioning frames (24) are fixedly connected with positioning buckles (25), which are respectively snap-fitted to the plurality of positioning frames (24).

4. A fireproof high voltage switch cabinet according to claim 1, characterized in that: The two opposite surfaces of the two harness racks (2) are symmetrically fixedly connected with guide rails (26) at positions away from the middle, and the two side walls of the electrical appliance mounting rack (3) are symmetrically provided with guide grooves (31) at positions away from the middle, and the two groups of guide grooves (31) are respectively slidably connected with the two groups of guide rails (26).

5. The fireproof high-voltage switch cabinet according to claim 1, characterized in that: A lock buckle (41) is fixedly connected to the front wall of the cabinet door (4) near the middle of the side wall, and an observation window (42) is provided near the top of the front wall of the cabinet door (4), and transparent glass is snap-connected inside.

6. A fireproof high voltage switch cabinet according to claim 1, characterized in that: The fire-fighting equipment extinguishing assembly (5) comprises a fire extinguisher (51) mounted on the top of a cabinet (1); an end surface outlet of the fire extinguisher (51) is fixedly connected to a conduit (52); an end surface of the conduit (52) is fixedly connected to a fixed pipe (53); the fixed pipe (53) passes through and is fixed at the top center of the cabinet (1); an expansion spray head (54) is fixedly connected to the bottom of the fixed pipe (53); and temperature detectors (55) are symmetrically fixedly connected to the inner rear wall of the cabinet (1) near the top and bottom, and both of the temperature detectors (55) are electrically connected to the fire extinguisher (51).

7. The fireproof high-voltage switch cabinet according to claim 1, characterized in that: Multiple ventilation holes (61) are symmetrically provided near the middle of the side walls of the two ventilation racks (6).

8. The fireproof high-voltage switch cabinet according to claim 1, characterized in that: The air isolation component (7) includes a drive motor (71) bolted to the middle position of the ventilation frame (6), the drive shaft of the drive motor (71) is fixedly connected to the commutator (72), the two output ends of the commutator (72) are fixedly connected to the worm (73), the outer walls of the two worms (73) are meshingly connected to the worm wheels (74), the inner walls of the two worm wheels (74) are interference-connected to the rotating shaft (75), the outer walls of the two rotating shafts (75) are fixedly connected to the rotating plates (76), and the two rotating plates (76) are fixedly connected to the rubber layer (77) on one side close to the ventilation frame (6).

9. A fireproof high voltage switch cabinet according to claim 8, characterized in that: The end surfaces of the two groups of rotating shafts (75) are both rotatably connected to positioning blocks (78), and the two groups of positioning blocks (78) are both fixedly connected to the ventilation frame (6).

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