Indoor intelligent alarm structure for power distribution station

Abstract

The utility model relates to the technical field of electric power early warning equipment, and discloses an indoor intelligent alarm structure for a power distribution station, which comprises a power distribution station, an electric power control cabinet arranged in the power distribution station, and a sulfur hexafluoride gas alarm arranged in the power distribution station. And a gas alarm controller for controlling the sulfur hexafluoride gas alarm is arranged at the top of the sulfur hexafluoride gas alarm. According to the utility model, through the mutual cooperation of the sulfur hexafluoride gas alarm, the gas alarm controller and the valve controller structure, when the sulfur hexafluoride gas alarm detects the leakage of sulfur hexafluoride in the power distribution station, the gas alarm controller receives the signal of the sulfur hexafluoride gas alarm, and the valve controller opens the electrically operated valve, so that the leakage of sulfur hexafluoride in the power distribution station is detected. Liquid carbon dioxide in the carbon dioxide fire extinguisher can be immediately vaporized and sprayed into the power distribution station, air around the power control cabinet is exhausted, the oxygen concentration around combustible materials is reduced, and the effect of extinguishing fire after alarming is achieved.

Description

Technical Field

[0001] This utility model relates to the field of power early warning equipment technology, and in particular to an intelligent alarm structure for indoor use in substations. Background Technology

[0002] In modern society, people's lives and work are inseparable from electricity, which puts forward higher requirements for the safety and stability of the power grid. Substations and distribution substations are important components of the power grid. Distribution substations do not necessarily have transformers or relatively low input voltages, and mainly focus on the distribution, control and protection of power supply to users.

[0003] Substations have relatively small capacities. A substation is responsible for receiving, distributing, controlling, and protecting electrical energy. Sulfur hexafluoride (SF6), also known as sulfur hexafluoride, is a colorless, toxic, odorless, and tasteless gas. Due to its excellent insulation and arc-extinguishing properties, it is widely used in high-voltage power equipment, especially in substations. SF6 is primarily used in high-voltage switchgear, existing as a neutral gas within the equipment to provide good insulation. Simultaneously, when electrical equipment experiences short circuits or overloads, SF6 can also extinguish arcs, effectively protecting the equipment. Therefore, when equipment malfunctions in a substation, SF6 is generated, prompting the use of intelligent SF6 alarms to warn personnel. However, existing intelligent SF6 alarms do not have the function of extinguishing fires in the substation after issuing a warning, posing a certain safety hazard.

[0004] Therefore, a smart alarm structure for indoor use in power distribution substations is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an intelligent alarm structure for indoor use in power distribution substations, aiming to improve the problem that existing intelligent sulfur hexafluoride alarms only have early warning functions but lack intelligent fire extinguishing functions after the early warning.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An intelligent alarm structure for indoor use in a power distribution substation includes a substation station. An electrical control cabinet is installed inside the substation station. A sulfur hexafluoride (SF6) gas alarm is installed inside the substation station. A gas alarm controller for controlling the SF6 gas alarm is installed on the top of the SF6 gas alarm. Fixed boxes are fixedly installed on both sides of the substation station. A valve controller is fixedly installed on the rear side of the inner wall of the fixed box. The valve controller is electrically connected to the gas alarm controller via a signal line. A carbon dioxide fire extinguisher is installed inside the fixed box. An electric valve is connected to the output end of the carbon dioxide fire extinguisher. A delivery pipe is threadedly connected to the side of the electric valve away from the carbon dioxide fire extinguisher. A spray box is connected to the inner side of the delivery pipe. The SF6 gas alarm and the gas alarm controller are conveniently installed to the inner wall of the substation station via mounting hardware. Heat dissipation vents are provided on both sides of the substation station.

[0008] As a further description of the above technical solution:

[0009] The mounting component includes a mounting plate connected to the inner wall of the substation. The sulfur hexafluoride gas alarm and the front and back of the substation are both connected to connecting blocks. The connecting blocks are located on the top of the mounting plate, and the outer side of the connecting blocks is stably connected to the mounting plate by a clamping device.

[0010] As a further description of the above technical solution:

[0011] The clamping component includes a sliding plate, which is slidably connected to the outside of the connecting block. The outside of the connecting block is slidably connected to the inside of the mounting plate. A tensioning spring is connected to the outside of the sliding plate, and the outside of the tensioning spring is connected to the surface of the connecting block.

[0012] As a further description of the above technical solution:

[0013] The tensioning spring is internally connected to a limiting rod, the inner side of which extends through to the inner side of the sliding plate, and the outer side of which is connected to the surface of the connecting block.

[0014] As a further description of the above technical solution:

[0015] A motor is fixedly installed on the outside of the substation, and a sealing plate is connected to the surface of the motor's output shaft.

[0016] As a further description of the above technical solution:

[0017] Electromagnetic blocks are embedded on both sides of the substation, and the outer side of the electromagnetic blocks is magnetically attracted to the inner side of the sealing plate.

[0018] As a further description of the above technical solution:

[0019] Both sides of the substation are connected to limit plates, which are located at the bottom of the sealing plate.

[0020] As a further description of the above technical solution:

[0021] A fan is fixedly installed inside the heat dissipation vent.

[0022] This utility model has the following beneficial effects:

[0023] 1. In this utility model, through the cooperation of the sulfur hexafluoride gas alarm, the gas alarm controller, and the valve controller, when the sulfur hexafluoride gas alarm detects a sulfur hexafluoride leak inside the substation, the gas alarm controller receives the signal from the sulfur hexafluoride gas alarm and causes the valve controller to open the electric valve, so that the liquid carbon dioxide in the carbon dioxide fire extinguisher will immediately vaporize and spray into the substation, remove the air around the power control cabinet, reduce the oxygen concentration around the combustibles, and achieve the effect of extinguishing the fire after the alarm is triggered.

[0024] 2. In this utility model, with the cooperation of the mounting parts and clamping parts, when the connecting block on the sulfur hexafluoride gas alarm and the gas alarm controller is clamped on the mounting plate, the sulfur hexafluoride gas alarm and the gas alarm controller are initially installed on the inner wall of the substation. Then, the tensioning spring pulls the sliding plate and inserts it into the inside of the mounting plate to fix the mounting plate and the connecting plate, so as to solve the problem of convenient removal of the sulfur hexafluoride gas alarm and the gas alarm controller during maintenance. Attached Figure Description

[0025] Figure 1 This is a three-dimensional schematic diagram of an intelligent alarm structure for indoor use in a power distribution station proposed in this utility model;

[0026] Figure 2 This is a three-dimensional structural diagram of the mounting component for an indoor intelligent alarm structure in a power distribution substation, as proposed in this utility model.

[0027] Figure 3 This is a front sectional view of the fixed box of the intelligent alarm structure for indoor use in a power distribution substation proposed in this utility model.

[0028] Figure 4 This utility model Figure 3 An enlarged schematic diagram of the structure at point A in the middle.

[0029] Legend:

[0030] 1. Substation; 2. Power control cabinet; 3. Sulfur hexafluoride gas alarm; 4. Gas alarm controller; 5. Fixed box; 6. Valve controller; 7. Carbon dioxide fire extinguisher; 8. Electric valve; 9. Delivery pipe; 10. Spray box; 11. Heat dissipation vent; 121. Mounting plate; 122. Connecting block; 131. Sliding plate; 132. Tensioning spring; 14. Limiting rod; 15. Motor; 16. Sealing plate; 17. Electromagnetic block; 18. Limiting plate; 19. Fan. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 1-3 This utility model provides an embodiment of an intelligent alarm structure for indoor use in a power distribution substation, comprising a power distribution substation 1, an internal power control cabinet 2, a sulfur hexafluoride (SF6) gas alarm 3, a gas alarm controller 4 for controlling the SF6 gas alarm 3, fixed boxes 5 on both sides of the power distribution substation 1, a valve controller 6 fixedly installed on the rear side of the inner wall of the fixed box 5, the valve controller 6 being electrically connected to the gas alarm controller 4 via a signal line, a carbon dioxide fire extinguisher 7 inside the fixed box 5, an electric valve 8 connected to the output end of the carbon dioxide fire extinguisher 7, a delivery pipe 9 threadedly connected to the side of the electric valve 8 away from the carbon dioxide fire extinguisher 7, and a spray box 10 connected to the inner side of the delivery pipe 9 for discharging sulfur hexafluoride gas. When alarm 3 detects a sulfur hexafluoride leak inside substation 1, gas alarm controller 4 receives the signal from sulfur hexafluoride gas alarm 3 and causes valve controller 6 to open electric valve 8. This causes the liquid carbon dioxide in carbon dioxide fire extinguisher 7 to immediately vaporize and be transported through delivery pipe 9 into the spray box 10, where it is sprayed into substation 1. This removes air from around power control cabinet 2, reducing the oxygen concentration around combustibles and achieving the fire extinguishing effect after the alarm is triggered. Both sulfur hexafluoride gas alarm 3 and gas alarm controller 4 are conveniently installed on the inner wall of substation 1 using mounting hardware. Both sides of substation 1 have heat dissipation vents 11, and fans 19 are fixedly installed inside the heat dissipation vents 11. After the fans 19 are started, the heat dissipation vents 11 allow outside air to circulate quickly inside substation 1 to dissipate heat from the power control cabinet 2.

[0033] Reference Figure 2-4The mounting components include a mounting plate 121, which is connected to the inner wall of the substation 1. Connecting blocks 122 are connected to both the front and back of the sulfur hexafluoride gas alarm 3 and the substation 1. The connecting blocks 122 are located on top of the mounting plate 121. A clamping device secures the connecting blocks 122 to the mounting plate 121. The sulfur hexafluoride gas alarm 3 and the gas alarm controller 4 can move the connecting blocks 122 to the top of the mounting plate 121, allowing for convenient installation of the gas alarm controller 4 and the sulfur hexafluoride gas alarm 3 inside the substation 1. The clamping device includes a sliding plate 131, which is slidably connected to the outside of the connecting blocks 122. Connected inside the mounting plate 121, the outer side of the sliding plate 131 is connected to a tensioning spring 132. The outer side of the tensioning spring 132 is connected to the surface of the connecting block 122. A limit rod 14 is slidably connected inside the tensioning spring 132. The inner side of the limit rod 14 extends to the inner side of the sliding plate 131. The outer side of the limit rod 14 is connected to the surface of the connecting block 122. The sliding plate 131, limited by the limit rod 14, can slide and insert into the interior of the mounting plate 121 and the connecting block 122 after the tensioning spring 132 is pulled, so that the connecting block 122 and the mounting plate 121 are stably fixed, thereby making the sulfur hexafluoride gas alarm 3 and the gas alarm controller 4 stably fixed to the inner wall of the substation 1.

[0034] Reference Figure 2-4 A motor 15 is fixedly installed on the outside of the substation 1. A sealing plate 16 is connected to the surface of the output shaft of the motor 15. Electromagnetic blocks 17 are embedded on both sides of the substation 1. The outer side of the electromagnetic blocks 17 is magnetically attracted to the inner side of the sealing plate 16. Limiting plates 18 are connected to both sides of the substation 1. The limiting plates 18 are located at the bottom of the sealing plate 16. When the electromagnetic blocks 17 need to be sealed inside the substation 1 to prevent air from entering and to prevent fire from fueling combustion, the electromagnetic blocks 17 are de-energized, causing the sealing plate 16 to rotate around the motor 15 and lock onto the limiting plate 18, thus sealing the heat dissipation vent 11. This seals the heat dissipation vent 11, making it difficult for outside air to enter the substation 1, reducing the air content inside the substation 1, and making it difficult for fire to spread inside the substation 1.

[0035] Working principle: When the sulfur hexafluoride gas alarm 3 detects a sulfur hexafluoride leak in the power control cabinet 2, it will issue an early warning. The gas alarm controller 4 will activate the valve controller 6, causing the electric valve 8 to open. This immediately vaporizes the liquid carbon dioxide inside the carbon dioxide fire extinguisher 7 and delivers it through the delivery pipe 9 to the spray box 10, spraying it towards the fire location in the power control cabinet 2. This reduces the safety hazard of a flammable gas leak inside the power control cabinet 2. Furthermore, after the electromagnetic block 17 is de-energized, the sealing plate 16 rotates around the motor 15 and falls to block the outside of the heat dissipation vent 11, sealing it. This allows the carbon dioxide inside the substation 1 to escape air and surround the surface of the burning object, distributing it in a relatively enclosed space. This reduces the oxygen concentration around the flammable material, making it less likely for open flames to ignite, thus achieving the effect of extinguishing the fire after an early warning and reducing safety hazards.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A smart alarm structure for indoor use in a power distribution station, comprising a power distribution station (1), wherein a power control cabinet (2) is installed inside the power distribution station (1), a sulfur hexafluoride gas alarm (3) is installed inside the power distribution station (1), and a gas alarm controller (4) for controlling the sulfur hexafluoride gas alarm (3) is installed on the top of the sulfur hexafluoride gas alarm (3), characterized in that: Fixed boxes (5) are fixedly installed on both sides of the substation (1). A valve controller (6) is fixedly installed on the rear side of the inner wall of the fixed box (5). The valve controller (6) is electrically connected to the gas alarm controller (4) through a signal line. A carbon dioxide fire extinguisher (7) is installed inside the fixed box (5). An electric valve (8) is connected to the output end of the carbon dioxide fire extinguisher (7). A delivery pipe (9) is threadedly connected to the side of the electric valve (8) away from the carbon dioxide fire extinguisher (7). A spray box (10) is connected to the inner side of the delivery pipe (9). The sulfur hexafluoride gas alarm (3) and the gas alarm controller (4) are conveniently installed on the inner wall of the substation (1) through mounting parts. Heat dissipation vents (11) are opened on both sides of the substation (1).

2. The intelligent alarm structure for indoor use in a power distribution substation according to claim 1, characterized in that: The mounting component includes a mounting plate (121) connected to the inner wall of the substation (1). The sulfur hexafluoride gas alarm (3) and the front and back of the substation (1) are both connected to connecting blocks (122). The connecting blocks (122) are located on the top of the mounting plate (121). The outer side of the connecting blocks (122) is stably connected to the mounting plate (121) by a clamping device.

3. The intelligent alarm structure for indoor use in a power distribution substation according to claim 2, characterized in that: The clamping component includes a sliding plate (131), which is slidably connected to the outside of the connecting block (122). The outside of the connecting block (122) is slidably connected to the inside of the mounting plate (121). A tensioning spring (132) is connected to the outside of the sliding plate (131), and the outside of the tensioning spring (132) is connected to the surface of the connecting block (122).

4. The intelligent alarm structure for indoor use in a power distribution substation according to claim 3, characterized in that: The tensioning spring (132) is internally slidably connected to a limiting rod (14), the inner side of the limiting rod (14) extends through to the inner side of the sliding plate (131), and the outer side of the limiting rod (14) is connected to the surface of the connecting block (122).

5. The intelligent alarm structure for indoor use in a power distribution substation according to claim 1, characterized in that: A motor (15) is fixedly installed on the outside of the substation (1), and a sealing plate (16) is connected to the surface of the output shaft of the motor (15).

6. The intelligent alarm structure for indoor use in a power distribution substation according to claim 5, characterized in that: Electromagnetic blocks (17) are embedded on both sides of the substation (1), and the outer side of the electromagnetic blocks (17) is magnetically attracted to the inner side of the sealing plate (16).

7. The intelligent alarm structure for indoor use in a power distribution substation according to claim 6, characterized in that: Both sides of the substation (1) are connected to limit plates (18), which are located at the bottom of the sealing plate (16).

8. The intelligent alarm structure for indoor use in a power distribution substation according to claim 1, characterized in that: A fan (19) is fixedly installed inside the heat dissipation port (11).

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