A protective device for operation and maintenance of electrical equipment in a power plant

Abstract

This invention provides a protective device for the operation and maintenance of electrical equipment in power plants, relating to the field of electrical equipment protection technology. The device includes: a protective box with an openable and closable door at the front; a temperature and humidity regulating component inside the box; and dustproof nets movably installed on both sides of the box. The temperature and humidity regulating component includes a temperature and humidity controller, a humidity sensor, and a temperature sensor installed inside the box for detecting the temperature and humidity within the box. A heating wire, a fan, a dehumidifier, and a humidifier are installed on the top of the box, respectively used to regulate the temperature and humidity inside the box under the control of the temperature and humidity controller. Movable cleaning units are also provided on both sides of the box for adjusting the ventilation area of ​​the dustproof nets and clearing their mesh to prevent blockage. This device can conveniently adjust the temperature, humidity, and ventilation conditions of the environment where the equipment is located, and can promptly clean the mesh of the dustproof nets to prevent blockage and ensure effective heat dissipation.

Description

Technical Field

[0001] This invention relates to the field of electrical equipment protection technology, and in particular to a protective device for the operation and maintenance of electrical equipment in power plants. Background Technology

[0002] As a core component of power production, power plant electrical equipment encompasses key devices such as generators, transformers, circuit breakers, and power distribution equipment. Through precise collaboration, it achieves efficient conversion, reliable transmission, and safe distribution of electrical energy, supporting the stable operation of the entire power system.

[0003] As the core of energy supply, power plants operate in complex environments with large temperature fluctuations, high dust levels, and significant humidity fluctuations. Existing protective devices for the operation and maintenance of electrical equipment generally have functional shortcomings. They are ineffective at protecting the space where the equipment is located from dust and lack the ability to actively regulate ambient temperature and humidity. This deficiency directly affects the long-term stable operation and service life of electrical equipment. Specifically, traditional protective devices have insufficient dust protection performance, allowing dust to easily enter the equipment through gaps and adhere to the surfaces of electrical components, terminals, and heat dissipation parts. This not only leads to poor contact and decreased insulation performance but also blocks heat dissipation channels, causing localized overheating and even inducing short circuits. Furthermore, existing devices are mostly passively protected and lack targeted temperature and humidity control mechanisms. When the ambient temperature exceeds the equipment's operating range, they cannot dissipate heat and cool down in time, which accelerates the aging of insulation materials and the wear and tear of electronic components, shortening the service life of core components such as transformers and switchgear. When the ambient humidity exceeds the standard, moisture in the air easily condenses on the equipment surface, corroding the metal casing and internal wiring terminals, increasing the risk of leakage, and further aggravating the probability of equipment failure. These problems combined will not only significantly reduce the operational reliability of electrical equipment and increase the frequency and cost of daily maintenance, but may also cause power outages due to sudden equipment failures, affecting the stable production capacity of power plants and failing to meet current needs. Summary of the Invention

[0004] The purpose of this invention is to provide a protective device for the operation and maintenance of electrical equipment in power plants. This device can conveniently adjust the temperature, humidity and ventilation conditions of the environment in which the equipment is located, and can clean the mesh of the dustproof net in a timely manner to avoid clogging and affecting the heat dissipation effect.

[0005] The present invention provides a protective device for the operation and maintenance of electrical equipment in power plants, comprising: a protective box, wherein the front of the protective box is provided with an openable and closable door, the protective box is provided with a temperature and humidity regulating component, and dustproof nets are movably installed on both sides of the protective box; The temperature and humidity control assembly includes a temperature and humidity controller, a humidity sensor, and a temperature sensor installed inside the protective box. A heating wire, a fan, a dehumidifier, and a humidifier are installed on the top of the protective box. The protective box is also equipped with mobile cleaning units on both sides, which are used to adjust the ventilation area of ​​the dustproof net and to clear its mesh.

[0006] Preferably, the top of the protective box is fixed with a housing that communicates with its interior, the heating wire is installed inside the housing, and the fan is installed on the top of the housing.

[0007] Preferably, the dustproof net is embedded in the two side walls of the protective box, and a limiting component is provided on the outer side of the dustproof net.

[0008] Preferably, the mobile cleaning unit includes a dual-axis motor fixed to the top wall of the protective box and support blocks on both sides thereof. The output shafts at both ends of the dual-axis motor are respectively connected to rotating shafts. The rotating shafts rotatably pass through the two support blocks and are fixedly connected to a first bevel gear. Threaded rods and limiting rods arranged perpendicular to the rotating shafts are respectively provided on both sides of the protective box. The two ends of the limiting rods are embedded in the inner wall of the protective box. A second bevel gear is installed at the top of the threaded rod. The second bevel gear can mesh with the first bevel gear for transmission. The threaded rod and the limiting rod are movably connected by a moving block. The moving block can move up and down with the rotation of the threaded rod. A connecting plate is fixed to the side of the moving block, and a baffle is fixed to the end of the connecting plate. The ventilation area of ​​the dustproof net can be adjusted by moving the baffle up and down.

[0009] Preferably, the baffle is provided with a brush on the side facing the dustproof net, which can clean and unclog the mesh of the dustproof net.

[0010] Preferably, the limiting component includes a mounting plate disposed on the outside of the dustproof net. The mounting plate is U-shaped, and a first L-shaped plate and a second L-shaped plate that can slide relative to each other are disposed on both sides of the mounting plate. The top of the first L-shaped plate and the second L-shaped plate are provided with a first rack and a second rack arranged vertically opposite to each other. A shaft extends into the mounting plate and its end is equipped with a spur gear that meshes with both the first rack and the second rack. A torsion spring is installed on the shaft. Rotating the shaft can cause the first L-shaped plate and the second L-shaped plate to slide closer or further apart relative to each other. The bottom ends of the first L-shaped plate and the second L-shaped plate are respectively provided with a first limiting block and a second limiting block that extend relative to the inner walls of both sides of the mounting plate. When both the first limiting block and the second limiting block extend relative to the mounting plate, the dustproof net is engaged and limited. When both the first limiting block and the second limiting block retract relative to the mounting plate, the dustproof net can be disassembled.

[0011] Preferably, the signal output terminals of the humidity sensor and the temperature sensor are electrically connected to the corresponding signal input terminals of the temperature and humidity controller, and the control output terminal of the temperature and humidity controller is electrically connected to the controlled input terminals of the heating wire, the fan, the dehumidifier, the humidifier, and the mobile cleaning unit.

[0012] Preferably, the inner side of the protective box has a rectangular groove that matches the brush body, the baffle can completely cover the rectangular groove, and the brush body and the dustproof net are tightly fitted together.

[0013] Preferably, one end of the torsion spring is fixedly connected to the mounting plate, and the other end is fixedly connected to the surface of the shaft.

[0014] Preferably, both the first limiting block and the second limiting block are tightly fitted to the dustproof net.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. The humidity sensor can detect the humidity inside the protective box and transmit it to the temperature and humidity controller. The temperature and humidity controller will regulate the start and stop of the dehumidifier and humidifier. When the humidity is high, the dehumidifier will run, and when the humidity is low, the humidifier will run to keep the humidity inside the protective box within a suitable range. 2. The temperature sensor can detect the temperature inside the protective box and transmit it to the temperature and humidity controller. The temperature and humidity controller will regulate the start and stop of the heating wire, fan and moving cleaning unit. When the temperature is too low, the heating wire, fan and moving cleaning unit will run, which can input hot air into the protective box and reduce ventilation. When the temperature is high, the fan and moving cleaning unit will run, which will increase the ventilation and heat dissipation effect inside the protective box and keep the temperature inside the protective box within a suitable range. 3. The dustproof net can protect the electrical equipment installed inside the protective box from dust. At the same time, the mobile cleaning unit can clear the mesh of the dustproof net when it moves, reducing the number of times the dustproof net needs to be disassembled and cleaned. The dustproof net can also be removed for cleaning, ensuring the ventilation and heat dissipation effect of the equipment. Attached Figure Description

[0016] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2This is a schematic diagram of the internal structure of the present invention; Figure 3 This is a schematic diagram showing the arrangement of the temperature and humidity control components in this invention; Figure 4 This is a schematic diagram of the structure of the mobile cleaning unit in this invention; Figure 5 This is a schematic diagram of the limiting component in this invention; Figure 6 This is a schematic diagram of the internal structure of the limiting component in this invention; Figure 7 For the present invention Figure 6 A magnified view of the structure at point A in the middle; Explanation of reference numerals in the attached figures: 1. Protective box; 2. Door; 3. Temperature and humidity control assembly; 31. Temperature and humidity controller; 32. Humidity sensor; 33. Temperature sensor; 34. Box body; 35. Heating wire; 36. Fan; 37. Dehumidifier; 38. Humidifier; 39. Moving cleaning unit; 391. Dual-axis motor; 392. Support block; 393. Rotating shaft; 394. First bevel gear; 395. Threaded rod; 396. Second bevel gear; 397. Limiting rod; 398. Moving block; 399. Connecting plate; 3910. Baffle; 3911. Brush body; 4. Dustproof net; 5. Limiting assembly; 51. Mounting plate; 52. Shaft; 53. Spur gear; 54. Torsion spring; 55. First L-shaped plate; 56. First rack; 57. First limiting block; 58. Second L-shaped plate; 59. Second rack; 510. Second limiting block. Detailed Implementation

[0018] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting this invention.

[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they may refer to a fixed connection, a detachable connection, or an integral connection; they may refer to a mechanical connection or an electrical connection; they may refer to a direct connection or an indirect connection through an intermediate medium; and they may refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0021] like Figure 1-7 As shown, the present invention provides a protective device for the operation and maintenance of electrical equipment in a power plant, comprising: a protective box 1 for protecting the electrical equipment placed therein; the surface of the protective box 1 may be provided with multiple wiring holes for wiring the electrical equipment; a door 2 that can be opened and closed relative to the front of the protective box 1 is provided to facilitate the placement of the electrical equipment therein; a temperature and humidity regulating component 3 is provided inside the protective box 1 for regulating the internal temperature and humidity of the protective box 1; and dustproof nets 4 are movably installed on both sides of the protective box 1 for ventilation and dust prevention.

[0022] The temperature and humidity control assembly 3 includes a temperature and humidity controller 31, a humidity sensor 32, and a temperature sensor 33 installed on the rear side wall inside the protective box 1. A heating wire 35, a fan 36, a dehumidifier 37, and a humidifier 38 are installed on the top of the protective box 1. The signal output terminals of the humidity sensor 32 and the temperature sensor 33 are electrically connected to the corresponding signal input terminals of the temperature and humidity controller 31, respectively. The two sensors can transmit the detected humidity and temperature data inside the protective box 1 to the temperature and humidity controller 31. The control output terminal of the temperature and humidity controller 31 is electrically connected to the controlled input terminals of the heating wire 35, the fan 36, the dehumidifier 37, and the humidifier 38, respectively. It can control the operation of each electrical device according to the measured temperature and humidity data to adjust the temperature and humidity environment inside the protective box 1.

[0023] The protective box 1 is also equipped with mobile cleaning units 39 on both sides. The control output terminal of the temperature and humidity controller 31 is electrically connected to the controlled input terminal of the mobile cleaning unit 39. Under the control of the temperature and humidity controller 31, the ventilation area of ​​the dustproof net 4 can be adjusted to improve the ventilation, dehumidification and heat dissipation effect or the heat preservation effect. In addition, the mobile cleaning unit 39 can clear the mesh of the dustproof net 4 to avoid excessive dust from causing blockage and affecting the ventilation effect.

[0024] The dustproof net 4 is embedded in the slots on both sides of the protective box 1, and the outer side of the dustproof net 4 is provided with a limiting component 5. The limiting component 5 can limit the position of the dustproof net 4, preventing the dustproof net 4 from falling when the protective box 1 is working. When the dustproof net 4 needs to be removed for cleaning, the limiting component 5 can be easily opened to remove the dustproof net 4.

[0025] In this embodiment, the top of the protective box 1 is fixed with a box body 34 that communicates with its interior. The heating wire 35 is installed inside the box body 34, and the fan 36 is installed on the top of the box body 34. When hot air needs to be introduced, both the heating wire 35 and the fan 36 are turned on. When only cool air needs to be introduced, the heating wire 35 is turned off and the fan 36 is turned on.

[0026] Specifically, the mobile cleaning unit 39 includes a dual-axis motor 391 fixed to the center of the top wall inside the protective box 1 and support blocks 392 symmetrically arranged on both sides. The output shafts at both ends of the dual-axis motor 391 are respectively connected to rotating shafts 393. The rotating shafts 393 rotatably pass through the two support blocks 392 and are fixedly connected to a first bevel gear 394. Threaded rods 395 and limiting rods 397, arranged perpendicularly to the rotating shafts 393, are respectively provided on both sides inside the protective box 1. The two ends of the limiting rods 397 are embedded in the inner wall of the protective box 1. A second bevel gear 396 is installed at the top of the threaded rod 395. The second bevel gear 396 can mesh with the first bevel gear 394 for transmission. Starting the dual-shaft motor 391 can drive the rotating shaft 393 to rotate. Under the action of the first bevel gear 394 and the second bevel gear 396, the threaded rod 395 can be driven to rotate together. The threaded rod 395 and the limiting rod 397 are movably connected by a moving block 398. The moving block 398 is threadedly connected to the threaded rod 395, and the moving block 398 is slidably engaged with the limiting rod 397. When the threaded rod 395 rotates in different directions, the moving block 398 can be driven to move up and down under the action of the limiting rod 397. A connecting plate 399 is fixed to the side of the moving block 398, and a baffle 3910 is fixed to the end of the connecting plate 399. The ventilation area of ​​the dustproof net 4 can be adjusted by moving the baffle 3910 up and down. A brush body 3911 is provided on the side of the baffle 3910 facing the dustproof net 4, which can clean and unclog the mesh of the dustproof net 4. A rectangular groove matching the brush body 3911 is opened on the inner side of the protective box 1. The baffle 3910 can completely cover the rectangular groove. The brush body 3911 and the dustproof net 4 are closely fitted. By moving the baffle 3910 up and down, the brush body 3911 can be used to unclog the mesh of the dustproof net 4 at different positions.

[0027] In this embodiment, the limiting component 5 includes a mounting plate 51 disposed on the outside of the dustproof net 4. The mounting plate 51 is U-shaped and fixed to the outer walls of both sides of the protective box 1 with its opening facing downward. A first L-shaped plate 55 and a second L-shaped plate 58, which can slide relative to each other, are disposed on both sides of the mounting plate 51. A first rack 56 and a second rack 59, arranged vertically opposite each other, are disposed on the top of the first L-shaped plate 55 and the second L-shaped plate 58. A shaft 52 can rotatably extend into the mounting plate 51, and its end is fitted with a spur gear 53 that meshes with both the first rack 56 and the second rack 59. A torsion spring 54 is mounted on the shaft 52. One end of the torsion spring 54 is fixedly connected to the mounting plate 51, and the other end is fixedly connected to the surface of the shaft 52. The torsion spring 54 can pre-apply a torsional force to the shaft 52 to prevent accidental collisions. The operator can rotate the shaft 52 to make the first L-shaped plate 55 and the second L-shaped plate 58 slide closer or further apart. The bottom ends of the first L-shaped plate 55 and the second L-shaped plate 58 are respectively provided with a first limiting block 57 and a second limiting block 510 extending from the inner walls of the two sides of the mounting plate 51. When the first limiting block 57 and the second limiting block 510 extend relative to the mounting plate 51, the first limiting block 57 and the second limiting block 510 are tightly fitted with the dustproof net 4, thereby locking and limiting the dustproof net 4. When the first limiting block 57 and the second limiting block 510 retract relative to the mounting plate 51, the dustproof net 4 can be disassembled.

[0028] In use, the electrical equipment is installed inside the protective box 1. The humidity sensor 32 is used to detect the humidity inside the protective box 1 and transmit the data to the temperature and humidity controller 31. The temperature and humidity controller 31 controls the start and stop of the dehumidifier 37 and the humidifier 38. When the humidity is high, the dehumidifier 37 will operate, and when the humidity is low, the humidifier 38 will operate to maintain the humidity inside the protective box 1 within a suitable range. Temperature sensor 33 is used to detect the temperature inside the protective box 1 and transmit it to temperature and humidity controller 31. Temperature and humidity controller 31 controls the start and stop of heating wire 35, fan 36, and dual-axis motor 391. When the temperature is low, heating wire 35, fan 36, and dual-axis motor 391 will run. Starting dual-axis motor 391 can drive rotating shaft 393 to rotate. Under the action of first bevel gear 394 and second bevel gear 396, threaded rod 395 can rotate. Under the action of limit rod 397, moving block 398 can move up and down, so that connecting plate 399 can drive baffle 3910 to move up and down. By moving baffle 3910, the temperature inside the protective box 1 can be adjusted. The ventilation volume of the part is increased, and the brush body 3911 can unclog the mesh of the dustproof net 4, reducing the number of times the dustproof net 4 needs to be disassembled and cleaned. Hot air can be introduced into the interior of the protective box 1 and the ventilation can be reduced. When the temperature is high, the fan 36 and the dual-axis motor 391 will run to increase the ventilation inside the protective box 1 and keep the temperature inside the protective box 1 within a suitable range. The shaft 52 drives the spur gear 53 to rotate. Under the action of the first rack 56 and the second rack 59, the first limit block 57 driven by the first L-shaped plate 55 and the second limit block 510 driven by the second L-shaped plate 58 can move in opposite directions, releasing the lock on the dustproof net 4, so that the dustproof net 4 can be disassembled for cleaning.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A protective device for the operation and maintenance of electrical equipment in a power plant, characterized in that, include: The protective box (1) has a door (2) that can be opened and closed in front of it, a temperature and humidity regulating component (3) is installed inside the protective box (1), and dustproof nets (4) are installed on both sides of the protective box (1). The temperature and humidity control assembly (3) includes a temperature and humidity controller (31), a humidity sensor (32) and a temperature sensor (33) installed in the protective box (1). The top of the protective box (1) is equipped with a heating wire (35), a fan (36), a dehumidifier (37) and a humidifier (38). The protective box (1) is also equipped with a mobile cleaning unit (39) on both sides, which is used to adjust the ventilation area of ​​the dustproof net (4) and to clear its mesh.

2. The protective device for operation and maintenance of electrical equipment in power plants according to claim 1, characterized in that, The top of the protective box (1) is fixed with a box body (34) that communicates with its interior. The heating wire (35) is installed inside the box body (34), and the fan (36) is installed on the top of the box body (34).

3. The protective device for operation and maintenance of electrical equipment in power plants according to claim 1, characterized in that, The dustproof net (4) is embedded in the two side walls of the protective box (1), and a limiting component (5) is provided on the outside of the dustproof net (4).

4. The protective device for operation and maintenance of electrical equipment in power plants according to claim 1, characterized in that, The mobile cleaning unit (39) includes a dual-axis motor (391) fixed to the top wall of the inner wall of the protective box (1) and support blocks (392) on both sides thereof. The output shafts at both ends of the dual-axis motor (391) are respectively connected to rotating shafts (393). The rotating shafts (393) rotate through the two support blocks (392) and are fixedly connected to the first bevel gear (394). Threaded rods (395) and limiting rods (397) arranged perpendicularly to the rotating shafts (393) are respectively provided on both sides of the inner wall of the protective box (1). The two ends of the limiting rods (397) are embedded in the inner wall of the protective box (1). A second bevel gear (396) is installed at the top of the threaded rod (395). The second bevel gear (396) can mesh with the first bevel gear (394) for transmission. The threaded rod (395) and the limiting rod (397) are movably connected by a moving block (398). The moving block (398) can move up and down with the rotation of the threaded rod (395). A connecting plate (399) is fixed on the side of the moving block (398). A baffle (3910) is fixed at the end of the connecting plate (399). The ventilation area of ​​the dustproof net (4) can be adjusted by moving the baffle (3910) up and down.

5. The protective device for operation and maintenance of electrical equipment in power plants according to claim 4, characterized in that, The baffle (3910) is provided with a brush (3911) on the side facing the dustproof net (4), which can clean and unclog the mesh of the dustproof net (4).

6. The protective device for operation and maintenance of electrical equipment in power plants according to claim 3, characterized in that, The limiting component (5) includes a mounting plate (51) disposed on the outside of the dustproof net (4). The mounting plate (51) is U-shaped. A first L-shaped plate (55) and a second L-shaped plate (58) that can slide relative to each other are provided on both sides of the mounting plate (51). The top of the first L-shaped plate (55) and the second L-shaped plate (58) are provided with a first rack (56) and a second rack (59) arranged vertically opposite to each other. A shaft (52) extends into the mounting plate (51) and its end is equipped with a spur gear (53) that meshes with both the first rack (56) and the second rack (59). A torsion spring (54) is installed on the shaft (52). Rotating the... The shaft (52) enables the first L-shaped plate (55) and the second L-shaped plate (58) to slide closer or further apart. The bottom ends of the first L-shaped plate (55) and the second L-shaped plate (58) are respectively provided with a first limiting block (57) and a second limiting block (510) extending relative to the inner walls on both sides of the mounting plate (51). When the first limiting block (57) and the second limiting block (510) both extend relative to the mounting plate (51), the dustproof net (4) is engaged and limited. When the first limiting block (57) and the second limiting block (510) both retract relative to the mounting plate (51), the dustproof net (4) can be disassembled.

7. The protective device for operation and maintenance of electrical equipment in power plants according to claim 1, characterized in that, The signal output terminals of the humidity sensor (32) and the temperature sensor (33) are electrically connected to the corresponding signal input terminals of the temperature and humidity controller (31), and the control output terminals of the temperature and humidity controller (31) are electrically connected to the controlled input terminals of the heating wire (35), the fan (36), the dehumidifier (37), the humidifier (38), and the mobile cleaning unit (39).

8. The protective device for operation and maintenance of electrical equipment in power plants according to claim 5, characterized in that, The inner side of the protective box (1) is provided with a rectangular groove that matches the brush body (3911). The baffle (3910) can completely cover the rectangular groove. The brush body (3911) and the dustproof net (4) are tightly fitted together.

9. The protective device for operation and maintenance of electrical equipment in power plants according to claim 6, characterized in that, One end of the torsion spring (54) is fixedly connected to the mounting plate (51), and the other end is fixedly connected to the surface of the shaft (52).

10. The protective device for operation and maintenance of electrical equipment in power plants according to claim 6, characterized in that, The first limiting block (57) and the second limiting block (510) are both closely attached to the dustproof net (4).

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