An improved substation protection panel cabinet

Abstract

The utility model discloses an improved transformer substation protection screen cabinet, including a cabinet body, a cabinet door is rotatably connected to the front surface of the cabinet body, a protection box is installed on the upper surface of the cabinet body, a mounting seat is installed in the protection box, a plurality of connectors are equidistantly arranged at one end of the interior of the mounting seat, and one end of the connector passes through the side wall of the mounting seat and extends to the outside, a fire-fighting pipe is connected to one end of the connector passing through the side wall of the mounting seat, and the fire-fighting pipe passes through the upper surface of the cabinet body and is arranged in a circuitous shape in the cabinet body, a plurality of branch pipes are equidistantly connected to the fire-fighting pipe located inside the cabinet body, and the branch pipes are thin-walled pipe fittings, and the branch pipes are arranged vertically in the cabinet body, and a fire extinguisher is connected to the interior of the mounting seat by a connector. The fire-fighting process of the device is relatively simple, and there is no need to set up complex pipes and assemble various sensors, which reduces the cost to a certain extent, and the simple fire-fighting mechanism reduces the possibility of accidents during the fire-fighting process to a certain extent.

Description

Technical Field

[0001] The utility model belongs to the technical field of protection screen cabinets, in particular to an improved transformer substation protection screen cabinet. Background Art

[0002] The substation protection panel cabinet is a cabinet electrical equipment similar to the power distribution cabinet. There are many electronic components inside. Usually, heat dissipation holes are opened in the cabinet to dissipate heat. However, when the internal electronic components overheat, the heat accumulation cannot be removed in time, which will cause fire hazards. In addition, the oxygen entering from the heat dissipation holes will further increase the intensity of combustion. Many existing protection panel cabinets do not have internal automatic fire extinguishing devices, and they need to be discovered manually before extinguishing the fire. By then, a lot of economic losses have already occurred. Therefore, the functions of traditional protection panel cabinets have certain limitations.

[0003] Chinese patent CN219595692U discloses an automatic fire extinguishing device for a transformer substation protection panel cabinet. When a fire occurs inside and the temperature rises sharply, the temperature sensor receives a signal and transmits it to the control terminal and then to the motor to start the shaft rotation. The active gear drives the passive gear to rotate, and the screw moves the sealing plate so that the sealing block is inserted into the heat dissipation slot to complete the sealing. At the same time, the bevel gear drives the passive gear plate to rotate, so that the stud rotates and drives the sealing plate to move downward. The carbon dioxide box and the introduction pipe are connected, and the carbon dioxide inside the carbon dioxide box quickly enters the interior of the cabinet for flame retardancy. The transmission mechanism is used to simultaneously drive the fire extinguishing device and the sealing component to change their shape, thereby achieving the purpose of fire extinguishing and sealing. The temperature sensor is equipped to realize the automatic fire extinguishing function, which greatly reduces the economic losses caused by the fire.

[0004] It can be seen that in the prior art, in order to deal with the fire problem of the protective screen cabinet, an automatic fire extinguishing device is usually installed in the protective screen cabinet, but the automatic fire extinguishing device is equipped with a complex sensor, and the operation of the sensor requires power support. However, the protective screen cabinet generally has a power-off device after a fire, which will cause the sensor to fail and thus cause the automatic fire extinguishing device to fail. In addition, in order to prevent air from entering and aggravating the fire, some fire extinguishing devices will seal the protective screen cabinet. However, due to the overly complex structure of the sealing component, insufficient sealing may occur due to failures in actual use. Utility Model Content

[0005] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0006] In order to solve the problems in the above-mentioned background technology, the utility model adopts the following technical solutions.

[0007] An improved transformer substation protection screen cabinet comprises a cabinet body, the front surface of the cabinet body is rotatably connected with a cabinet door, the upper surface of the cabinet body is equipped with a protection box, a mounting seat is installed in the protection box, a plurality of connectors are equidistantly provided at one end of the interior of the mounting seat, and one end of the connector passes through a side wall of the mounting seat and extends to the outside, a fire-fighting pipe is connected to one end of the connector passing through the side wall of the mounting seat, and the fire-fighting pipe passes through the upper surface of the cabinet body and is arranged in a circuitous manner in the cabinet body, a plurality of branch pipes are equidistantly connected to the fire-fighting pipe located inside the cabinet body, and the branch pipes are thin-walled pipe fittings, and the branch pipes are arranged vertically in the cabinet body, and a fire extinguisher is connected to the interior of the mounting seat by means of a connector.

[0008] Preferably, valves are provided on the connecting sections of the fire-fighting pipe and the connector.

[0009] Preferably, a plurality of fixing plates are welded equidistantly at the tail of the mounting seat, and a hole is centrally provided on the fixing plate, a screw sleeve is integrally connected to the inner side of the fixing plate, and the screw sleeve is concentric with the hole, the inner diameter of the screw sleeve is equal to the diameter of the hole, a fastening screw is threadedly connected to the screw sleeve, one end of the fastening screw is connected to a resistance block, and the resistance block abuts against the tail of the fire extinguisher.

[0010] Preferably, a plurality of support blocks are equidistantly arranged on the upper surface of the mounting seat, and arcuate grooves are cut on the upper surfaces of the support blocks, and the arcuate grooves of the support blocks match the curvature of the side surfaces of the fire extinguisher.

[0011] Preferably, rectangular ventilation holes are symmetrically provided on the sides of the cabinet, and shutters are installed on the outer sides of the cabinet, the shutters cover the rectangular ventilation holes, the inner side of the cabinet is fixedly connected to a mounting frame, and the mounting frame is a U-shaped structure, the mounting frame is arranged along the inner edge of the rectangular ventilation hole, a sliding groove is provided on the side wall of the mounting frame, a sealing plate is slidably connected to the mounting frame, and the sealing plate is placed in the sliding groove.

[0012] Preferably, a traction rope is connected to the upper surface of the sealing plate, and a rectangular threading hole is centrally opened on the upper surface of the cabinet, through which the traction rope extends into a protection box, and a roller is provided in the protection box, on which the traction rope is wound.

[0013] Preferably, a partition is provided in the protection box and on the lower surface of the mounting seat, and a support plate is symmetrically connected to the lower surface of the partition. The partition is mounted on the upper surface of the cabinet through the support plate, and the roller is assembled between the support plates using bearings. A driver is installed on the outer side of one of the support plates, and the output end of the driver is connected to one end of the roller.

[0014] Preferably, a first fixed pulley is symmetrically provided on the side wall of the threading hole, and a second fixed pulley is installed on the inner wall of the cabinet and above the sealing plate. The traction rope passes through the first fixed pulley and the second fixed pulley in sequence and is then wound around the roller.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] (1) The fire extinguishing device in this device is installed above the protective screen cabinet, and is equipped with a fire extinguisher, a connector, a fire-fighting pipe and a branch pipe. Among them, the fire-fighting pipe and branch pipe adopt a closed structure and are arranged inside the protective screen cabinet. These pipes and branch pipes are connected to the fire extinguisher through the connector, so that the fire extinguishing agent in the fire extinguisher can form a balanced state in the fire-fighting pipe and branch pipe. Once a fire occurs inside the protective screen cabinet, the high temperature and open flame will cause the branch pipe to rupture, so that the fire extinguishing agent in the fire extinguisher is transported to each branch pipe through the fire-fighting pipe and evenly diffused in the protective screen cabinet to achieve the fire extinguishing effect. The fire extinguishing process of this device is relatively simple, and does not require a complex pipeline system and multiple sensors. This not only reduces costs to a certain extent, but also reduces the risk of accidents that may occur during the fire extinguishing process. According to fire protection regulations, this physical operation is safer and more reliable than electrical control.

[0017] (2) Furthermore, in order to prevent outside air from entering the protective screen cabinet and exacerbating the fire during the fire extinguishing process, the present application is also provided with a sealing mechanism. The sealing mechanism includes a sealing plate and a mounting frame, which are installed at the ventilation holes of the protective screen cabinet. Under normal conditions, the sealing plate is lifted by a traction rope to keep the ventilation holes open, so that the protective screen cabinet can dissipate heat and cool down. Once a fire occurs in the protective screen cabinet, the high temperature and open flame will melt the traction rope, and the sealing plate will slide down due to its own weight, fit tightly with the mounting frame, and close the ventilation holes. This can reduce the air content in the protective screen cabinet and cooperate with the fire extinguishing device to control and eliminate the fire.

[0018] (3) Furthermore, the present application equips the sealing plate with a winding device so that the opening and closing degree of the sealing plate can be adjusted by the device under normal conditions, thereby indirectly controlling the size of the ventilation holes and achieving precise temperature control. Under high temperature conditions, the winding device will retract the traction rope, causing the sealing plate to rise, increasing the distance from the connecting frame, thereby expanding the ventilation area; in a low temperature environment, the winding device releases the traction rope, causing the sealing plate to fall, reducing the ventilation area, and ensuring that the components inside the protective screen cabinet can operate at an appropriate temperature. In addition, if a fire occurs and the traction rope is not melted, the winding device can actively release the sealing plate to achieve the sealing of the protective screen cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 To protect the three-dimensional structure of the screen cabinet Figure 1 .

[0020] Figure 2 This is the assembly drawing of the fire extinguishing device and the protective screen cabinet.

[0021] Figure 3 This is a three-dimensional structural diagram of the fire extinguishing device.

[0022] Figure 4 This is the assembly drawing of the sealing mechanism and the protective screen cabinet.

[0023] Figure 5 for Figure 4 Enlarged view of the traction rope steering structure at point A in the middle.

[0024] Figure 6 Front view plan of the fire extinguishing device, sealing mechanism and protective screen cabinet assembly.

[0025] The corresponding relationship between the illustrations and component names in the figure is as follows:

[0026] 100, cabinet body; 101, installation frame; 1011, sealing plate; 1012, shutters; 102, cabinet door; 103, protection box; 200, mounting base; 201, fixing plate; 2011, fastening screw; 202, fire protection pipe; 2021, branch pipe; 203, connector; 204, fire extinguisher; 300, partition; 301, roller; 3011, drive; 302, first fixed pulley; 303, second fixed pulley; 304, traction rope. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments. The present invention provides the following embodiments.

[0030] See also Figure 1-3 The improved substation protection screen cabinet in this embodiment includes a cabinet body 100, a cabinet door 102 is rotatably connected to the front surface of the cabinet body 100, rectangular ventilation holes are symmetrically opened on the side of the cabinet body 100, and a shutter 1012 is installed on the outer side of the cabinet body 100. The shutter 1012 covers the rectangular ventilation holes to a certain extent and plays a protective role, which can prevent rainwater and large impurities from entering the cabinet body 100 through the rectangular ventilation holes;

[0031] See also Figure 2-3 Schematic diagram of the structure of the fire extinguishing device in this embodiment. In this embodiment, a partition 300 is provided on the upper surface of the cabinet 100, and a support plate is symmetrically connected to the lower surface of the partition 300. The partition 300 is mounted on the upper surface of the cabinet 100 through the support plate. The upper surface of the partition 300 is equipped with a mounting seat 200. A plurality of connectors 203 are equidistantly provided at one end of the interior of the mounting seat 200, and one end of the connector 203 penetrates through the side wall of the mounting seat 200 and extends to the outside. One end of the connector 203 penetrating the side wall of the mounting seat 200 is connected to a fire-fighting pipe 202, and the fire-fighting pipe 202 penetrates the upper surface of the cabinet 100 and is arranged in a circuitous shape in the cabinet 100. A plurality of branch pipes 2021 are equidistantly connected to the fire-fighting pipe 202 located inside the cabinet 100, and the branch pipes 2021 are thin-walled pipe fittings. The cabinet 100 is arranged vertically, and the interior of the mounting base 200 is connected to a fire extinguisher 204 via a connector 203. In this embodiment, the fire extinguishing device has a built-in fire extinguisher 204, a connector 203, a fire-fighting pipe 202 and a branch pipe 2021. The fire-fighting pipe 202 and the branch pipe 2021 are a closed structure placed inside the cabinet 100, and the fire-fighting pipe 202 and the branch pipe 2021 are connected to the fire extinguisher 204 via the connector 203. The fire-fighting agent in the fire extinguisher 204 fills the fire-fighting pipe 202 and the branch pipe 2021 to form a balance. When a fire occurs in the cabinet 100, the high temperature and open flame cause the branch pipe 2021 to rupture, so that the fire-fighting agent in the fire extinguisher 204 on the fire-fighting device is transported to each branch pipe 2021 through the fire-fighting pipe 202, thereby evenly diffusing in the protective screen cabinet to play a fire-fighting role.

[0032] See also Figure 2 Since multiple fire extinguishers 204 are provided and connected in series on the fire protection pipe 202, in order to enable each fire extinguisher 204 to operate independently and adapt to protection screen cabinets of different volumes, this embodiment is provided with a valve on the connecting section of the fire protection pipe 202 and the connector 203. When the fire extinguishing device in this embodiment is assembled with a smaller protection screen cabinet, the number of fire extinguishers 204 can be reduced, and the connector 203 will be vacant. At the same time, the valve is used to close the connection between the connector 203 to which the fire extinguisher 204 is not connected and the fire protection pipe 202 to prevent the fire extinguishing agent from flowing back and overflowing from the vacated connector 203 when the fire extinguishing device is started.

[0033] See also Figure 3In order to ensure that the fire extinguisher 204 can remain stable on the mounting base 200, so that the fire extinguisher 204 and the connector 203 can be tightly connected, in this embodiment, a plurality of fixing plates 201 are welded at equal intervals on the tail of the mounting base 200, and a hole is opened in the center of the fixing plate 201. A screw sleeve is integrally connected to the inner side of the fixing plate 201, and the screw sleeve is concentric with the hole, and the inner diameter of the screw sleeve is equal to the diameter of the hole. A fastening screw 2011 is threadedly connected to the screw sleeve, and one end of the fastening screw 2011 is connected to a resistance block. The fastening screw 2011 is rotated to make it The abutment block abuts against the tail of the fire extinguisher 204 to fix the fire extinguisher 204. Furthermore, the existing fire extinguishers 204 are basically cylindrical structures. In order to ensure that the fire extinguisher 204 does not shake on the mounting seat 200, this embodiment provides a plurality of support blocks at equal intervals on the upper surface of the mounting seat 200, and the upper surface of the support block is cut with an arc groove. The arc groove of the support block matches the curvature of the side of the fire extinguisher 204. When the fire extinguisher 204 is placed in the mounting seat 200, the support block lifts the fire extinguisher 204 and clamps the fire extinguisher 204 with the arc groove.

[0034] See also Figure 4 101 is a schematic diagram of the assembly of the sealing mechanism in the present embodiment. The sealing mechanism in the present embodiment includes a mounting frame 101 fixedly connected to the inner side surface of the cabinet 100, and the mounting frame 101 is a U-shaped structure. The mounting frame 101 is arranged along the inner edge of the rectangular ventilation hole. A sliding groove is provided on the side wall of the mounting frame 101. A sealing plate 1011 is slidably connected to the mounting frame 101, and the sealing plate 1011 is placed in the sliding groove. In order to prevent the outside air from entering the cabinet 100 during the fire extinguishing process, causing the fire inside the cabinet 100 to intensify, the present application is also provided with a sealing mechanism. The sealing plate 1011 and the mounting frame 101 in the sealing mechanism are installed at the ventilation hole of the cabinet 100. In the initial state, the sealing plate 1011 is opened so that the ventilation hole is in a ventilated state, so that the cabinet 100 can complete heat dissipation and cooling. When a fire occurs in the cabinet 100, the sealing plate 1011 slides downward under the action of its own weight and fits with the mounting frame 101 to seal the ventilation hole, thereby reducing the air content in the cabinet 100. Figure 6 The sealing mechanism cooperates with the fire extinguishing device to control and eliminate the fire.

[0035] See also Figure 4 and Figure 5In order to further adjust the sealing plate 1011 and thus control the size of the ventilation hole, a traction rope 304 is connected to the upper surface of the sealing plate 1011 in this embodiment, and a rectangular threading hole is opened in the center of the upper surface of the cabinet 100, and a roller 301 is installed between the partitions 300 using a bearing, and the traction rope 304 is wound around the roller 301, and a driver 3011 is installed on the outer side of one of the support plates, and the output end of the driver 3011 is connected to one end of the roller 301, and the side wall of the threading hole is symmetrically provided with a first fixed pulley 302, and the inner wall of the cabinet 100 and located above the sealing plate 1011 are provided with a second fixed pulley 303, and the traction rope 304 passes through the roller 301 in sequence. The first fixed pulley 302 and the second fixed pulley 303 are then wound around the roller 301. In this embodiment, the driver 3011 drives the roller 301 to rotate clockwise or counterclockwise, so that the traction rope 304 is rolled up or lowered by the roller 301. At high temperatures, the traction rope 304 is rolled up, so that the sealing plate 1011 moves upward to expand the ventilation surface. In a low temperature environment, the winding device releases the traction rope 304 to make the sealing plate 1011 fall and reduce the ventilation surface, thereby ensuring the normal operation of the internal components of the cabinet 100. At the same time, the winding device can actively lower the sealing plate 1011 to protect the airtightness of the screen cabinet when a fire occurs and the traction rope 304 is not internally melted.

[0036] It is worth noting that in order to protect the fire extinguishing device and the sealing mechanism, a protection box 103 is installed on the upper surface of the cabinet 100 in this embodiment, and the mounting seat 200, the connector 203, the joint of the fire protection pipe 202, the fire extinguisher 204, the roller 301 and the driver 3011 are arranged in the protection box 103 for protection, and the traction rope 304 extends into the protection box 103 through the threading hole and is connected to the roller 301.

[0037] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. An improved substation protection panel cabinet, comprising a cabinet body (100), a cabinet door (102) being rotatably connected to the front surface of the cabinet body (100), and a protection box (103) being mounted on the upper surface of the cabinet body (100). Features: A mounting seat (200) is installed in the protection box (103); a plurality of connectors (203) are equidistantly arranged at one end of the interior of the mounting seat (200); one end of the connector (203) penetrates the side wall of the mounting seat (200) and extends to the outside; one end of the connector (203) penetrating the side wall of the mounting seat (200) is connected to a fire-fighting pipe (202); the fire-fighting pipe (202) penetrates the upper surface of the cabinet (100) and is arranged in a circuitous manner in the cabinet (100); a plurality of branch pipes (2021) are equidistantly connected to the fire-fighting pipe (202) located in the cabinet (100); the branch pipes (2021) are thin-walled pipe fittings; the branch pipes (2021) are arranged vertically in the cabinet (100); and a fire extinguisher (204) is connected to the interior of the mounting seat (200) by means of the connector (203).

2. The improved substation protection panel cabinet according to claim 1 is characterized in that: Valves are provided on the connecting sections of the fire-fighting pipe (202) and the connector (203).

3. The improved substation protection panel cabinet according to claim 1 is characterized in that: A plurality of fixing plates (201) are welded to the rear of the mounting seat (200) at equal intervals, and a hole is centrally provided on the fixing plate (201). A screw sleeve is integrally connected to the inner side of the fixing plate (201), and the screw sleeve is concentric with the hole. The inner diameter of the screw sleeve is equal to the diameter of the hole. A fastening screw rod (2011) is threadedly connected to the screw sleeve, and one end of the fastening screw rod (2011) is connected to a resistance block, and the resistance block is in contact with the rear of the fire extinguisher (204).

4. The improved substation protection panel cabinet according to claim 3 is characterized in that: A plurality of support blocks are equidistantly arranged on the upper surface of the mounting seat (200), and arcuate grooves are cut on the upper surfaces of the support blocks. The arcuate grooves of the support blocks match the curvature of the side surfaces of the fire extinguisher (204).

5. The improved substation protection panel cabinet according to claim 1 is characterized in that: The cabinet (100) has symmetrically arranged rectangular ventilation holes on its side surface, and a shutter (1012) is installed on the outer side surface of the cabinet (100), the shutter (1012) covers the rectangular ventilation hole, the inner side surface of the cabinet (100) is fixedly connected to a mounting frame (101), the mounting frame (101) is a U-shaped structure, the mounting frame (101) is arranged along the inner edge of the rectangular ventilation hole, a sliding groove is opened on the side wall of the mounting frame (101), a sealing plate (1011) is slidably connected to the mounting frame (101), and the sealing plate (1011) is placed in the sliding groove.

6. The improved substation protection panel cabinet according to claim 5 is characterized in that: A traction rope (304) is connected to the upper surface of the sealing plate (1011), and a rectangular threading hole is provided in the center of the upper surface of the cabinet (100). The traction rope (304) extends into the protection box (103) through the threading hole. A reel (301) is provided in the protection box (103), and the traction rope (304) is wound around the reel (301).

7. The improved substation protection panel cabinet according to claim 6 is characterized in that: A partition (300) is provided in the protection box (103) and on the lower surface of the mounting seat (200), and a support plate is symmetrically connected to the lower surface of the partition (300), the partition (300) is mounted on the upper surface of the cabinet (100) via the support plate, and the roller (301) is assembled between the support plates using a bearing, a driver (3011) is installed on the outer side of one of the support plates, and the output end of the driver (3011) is connected to one end of the roller (301).

8. The improved substation protection panel cabinet according to claim 6 is characterized in that: A first fixed pulley (302) is symmetrically arranged on the side wall of the threading hole, and a second fixed pulley (303) is installed on the inner side wall of the cabinet (100) and above the sealing plate (1011); the traction rope (304) passes through the first fixed pulley (302) and the second fixed pulley (303) in sequence and is then wound around the winding roller (301).

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