Thermal power plant electrical cabinet

Abstract

The utility model discloses an electrical cabinet for a thermal power plant, which comprises a cabinet body, a cabinet door arranged on the front side of the cabinet body, an air inlet hole and an air outlet hole arranged on the side wall of the cabinet body, a side cover, an exhaust fan and filter cotton, air in the cabinet body can be exhausted outwards through the exhaust fan, fresh air can enter the cabinet body through the air inlet hole, and the filter cotton is arranged on the side wall of the cabinet body. The air inlet side cover is arranged on the cabinet body to achieve the heat dissipation effect of the cabinet body, air entering the cabinet body can be filtered through filter cotton installed on the air inlet side cover, external dust is prevented from entering the cabinet body, the side cover is rotatably arranged, the side cover is conveniently opened to replace the filter cotton, and when the air inlet side cover is opened to replace the filter cotton, the air inlet side cover is opened to replace the filter cotton. An operator backs on the side with dust and impurities filtered and intercepted by the filter cotton, so that when the filter cotton is detached, the situation that the dust and the impurities intercepted on the filter cotton directly face the operator can be reduced, and dust inhalation of the operator is reduced.

Description

Technical Field

[0001] This utility model relates to the field of electrical cabinet technology, specifically to an electrical cabinet for a thermal power plant. Background Technology

[0002] Electrical control cabinets are cabinets made of steel to protect circuit components and ensure their normal operation. The materials used to make electrical control cabinets are generally divided into two types: hot-rolled steel and cold-rolled steel plates. Electrical control cabinets have a wide range of applications and are mainly used in chemical industry, environmental protection industry, power system, metallurgical system, industrial, nuclear power industry, fire safety monitoring, transportation industry, etc.

[0003] In order to meet the heat dissipation requirements of internal components, electrical control cabinets used in thermal power plants are equipped with built-in cooling fans. Therefore, electrical cabinets are not sealed structures. In order to meet the dust prevention requirements inside the cabinet, filter cotton is often installed at the heat dissipation vents to filter air dust. After working for a period of time, some dust will be adsorbed on the surface of the filter cotton, and some mesh holes of the filter cotton will be blocked, affecting the air intake. This not only makes the heat dissipation effect worse, but also increases the load on the cooling fan. Therefore, the filter cotton of the electrical cabinet needs to be cleaned regularly to ensure the normal operation of the cabinet.

[0004] Currently, filter cotton is generally installed on the inner wall of the electrical cabinet. When cleaning is required, the cabinet door needs to be opened, and the operator needs to reach inside the cabinet to disassemble and replace it. If not careful, the electronic components inside the cabinet may be touched, and if the power is not cut off in time, there may be danger. Some filter cotton is installed on the outside of the cabinet, but when disassembling it, the operator will be directly facing the side of the filter cotton that traps dust and impurities. When disassembling, this dust will be stirred up and affect the operator's breathing, and the disassembly operation is also inconvenient. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this utility model provides an electrical cabinet for thermal power plants, which solves the problem mentioned in the background art that the filter cotton on existing electrical cabinets is not easy to disassemble and replace.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] An electrical cabinet for a thermal power plant includes a cabinet body, a cabinet door on the front side of the cabinet body, and air inlet and exhaust vents on the side walls of the cabinet body. It also includes:

[0010] Side cover, which is rotatably mounted on the outer side wall of the cabinet;

[0011] The side cover installed on one side of the air inlet is designated as the air inlet side cover, and the side cover installed on one side of the air outlet is designated as the air outlet side cover.

[0012] An exhaust fan, which is mounted on the exhaust side cover;

[0013] The filter cotton is detachably installed on the air inlet side cover.

[0014] Furthermore, the inner wall of the air inlet side cover is provided with mounting grooves at both the top and bottom, and each mounting groove is provided with several through holes. The filter cotton can be detachably installed in the mounting groove through the mounting structure.

[0015] Furthermore, the outer wall of the air inlet side cover is provided with placement grooves at both the top and bottom, and the two placement grooves correspond to the two mounting grooves respectively, with a cover plate installed in the placement groove.

[0016] Furthermore, the bottom of the cover plate is provided with connecting rods, at least two connecting rods, each connecting rod is vertically connected to a rotating shaft, a through groove suitable for placing the connecting rods is provided between the two placement grooves, and an insertion hole for rotating shafts is provided in the middle of the through groove. The cover plate is placed in the placement groove, and the connecting rods are placed in the through grooves accordingly. The rotating shafts are rotatably set in the insertion holes at the corresponding positions.

[0017] Furthermore, both the mounting groove and the placement groove have operating holes on their transverse sidewalls, and screws are threaded into the operating holes.

[0018] Furthermore, the operating holes on the two placement slots are symmetrically arranged, and the operating holes in both mounting slots are located in the upper area of ​​the mounting slots.

[0019] Furthermore, each of the screws is concentrically provided with a limiting shaft, and the limiting shaft is fixedly connected to the inner wall of the operating hole.

[0020] Furthermore, the filter cotton is provided with an installation frame on its exterior, the bottom of the installation frame is provided with an insert block, and the inner bottom wall of the installation groove is provided with a corresponding insertion hole, and the top of the installation frame is provided with a threaded hole suitable for screw thread to be screwed in.

[0021] Furthermore, the cover plate also has a threaded hole on the side wall away from the pivot for screw thread to be screwed in.

[0022] (III) Beneficial Effects

[0023] Compared with the prior art, this utility model provides an electrical cabinet for a thermal power plant, which has the following advantages:

[0024] This invention utilizes an exhaust fan to expel internal gases from the cabinet while allowing fresh air to enter through the air inlet, thus achieving heat dissipation. Furthermore, a filter installed on the air inlet side cover filters the incoming air, preventing external dust from entering the cabinet. The rotatable side cover facilitates filter replacement. When replacing the filter, the operator faces away from the side of the filter that traps dust and impurities, minimizing direct contact with the filter and reducing dust inhalation. Compared to existing methods that require opening the cabinet door to replace the filter, this invention reduces the risk of operators touching internal electronic components and inhaling dust, thus improving practicality. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this application;

[0026] Figure 2 This is a structural schematic diagram of the air inlet side cover and the air outlet side cover in the unfolded state of this application;

[0027] Figure 3 This is a structural diagram showing the filter cotton and the installation groove in their disassembled state in this application;

[0028] Figure 4 This is a schematic diagram of the structure of the filter cotton and the mounting groove in the disassembled state and the cover plate in the flipped state in this application.

[0029] Figure 5 For this application Figure 4 A magnified schematic diagram of the partial structure at point A in the middle;

[0030] Figure 6 This is a schematic diagram of the cover plate in this application.

[0031] In the diagram: 1. Cabinet body; 2. Cabinet door; 3. Air inlet; 4. Mounting frame; 5. Exhaust fan; 6. Filter cotton; 7. Air inlet side cover; 8. Exhaust side cover; 9. Magnetic strip; 10. Mounting groove; 11. Through hole; 12. Placement groove; 13. Cover plate; 14. Connecting rod; 15. Rotating shaft; 16. Operating hole; 17. Screw; 18. Limiting shaft; 19. Insert block. Detailed Implementation

[0032] 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.

[0033] For examples, please refer to Figures 1 to 6 An electrical cabinet for a thermal power plant includes a cabinet body 1, a cabinet door 2 on the front side of the cabinet body 1, and air inlets 3 and exhaust vents on the side walls of the cabinet body 1. It also includes side covers, an exhaust fan 5, and filter cotton 6. The side covers are rotatably mounted on the outer side walls of the cabinet body 1. The side cover mounted on the side of the air inlet 3 is designated as an air inlet side cover 7, and the side cover mounted on the side of the exhaust vent is designated as an exhaust side cover 8. The exhaust fan 5 is mounted on the exhaust side cover 8, and the filter cotton 6 is detachably mounted on the air inlet side cover 7. A magnetic strip 9 is provided on the inner wall of the side cover, allowing it to be directly attracted to the cabinet body 1 when closed. A sealing strip is also provided at the contact point between the side cover and the side wall of the cabinet body 1 to prevent external dust from entering through the gap between the side cover and the cabinet body 1 when closed. The exhaust fan 5 exhausts the gas inside the cabinet body 1, while the air inlets 3 allow fresh air to enter. Air enters the cabinet 1, achieving heat dissipation. The filter cotton 6 installed on the air inlet side cover 7 filters the air entering the cabinet 1, preventing external dust from entering. The rotatable design of the side cover facilitates opening and replacement of the filter cotton 6. When opening the air inlet side cover 7 to replace the filter cotton 6, the operator faces away from the side where the filter cotton 6 traps dust and impurities. This reduces the direct exposure of the operator to the dust and impurities trapped on the filter cotton 6, minimizing dust inhalation. Compared to the existing method of opening the cabinet door 2 to replace the filter cotton 6, this method reduces the operator's contact with electronic components inside the electrical cabinet and also reduces dust inhalation, improving practicality.

[0034] In this embodiment, the inner wall of the air inlet side cover 7 is further provided with mounting grooves 10 at both the upper and lower parts, and each mounting groove 10 is provided with several through holes 11. The filter cotton 6 is detachably installed in the mounting groove 10 through the mounting structure. Two filter cotton 6 can be placed at the same time through the two mounting grooves 10. The several through holes 11 facilitate gas flow. The outer wall of the air inlet side cover 7 is provided with placement grooves 12 at both the upper and lower parts, and the two placement grooves 12 correspond to the two mounting grooves 10 respectively. The placement groove 12 is provided with a cover plate 13, and the two placement grooves 12 are provided with one cover plate 13. The two filter cotton 6 are also one for backup. The purpose is to close the cover 13 in the upper or lower placement slot 12 during use, allowing outside air to enter the cabinet 1 through several through holes 11 in one placement slot 12. When the filter cotton 6 is dirty, open the air inlet side cover 7, remove the filter cotton 6, close the air inlet side cover 7, and at the same time, fasten the cover 13 onto the placement slot 12 where the removed filter cotton 6 is located. Then, use the filter cotton 6 corresponding to another placement slot 12 for filtration. Alternatively, a new filter cotton 6 can be installed in the installation slot 10 of the removed filter cotton 6 for easy subsequent use.

[0035] In this embodiment, the bottom of the cover plate 13 is provided with a connecting rod 14, and there are at least two connecting rods 14. Each connecting rod 14 is vertically connected to a rotating shaft 15. A through groove suitable for placing the connecting rod 14 is provided between the two placement grooves 12, and an insertion hole for rotating the rotating shaft 15 is provided in the middle of the through groove. The cover plate 13 is placed in the placement groove 12, and the connecting rod 14 is placed in the through groove. The rotating shaft 15 is rotatably set in the corresponding insertion hole. Through the action of the rotating shaft 15, the cover plate 13 can be directly flipped, which makes it easy to rotate from one placement groove 12 to another placement groove 12 for use. The through groove facilitates the placement of the connecting rod 14.

[0036] In this embodiment, in order to better fix the filter cotton 6 and the cover plate 13, operating holes 16 are provided on the transverse sidewalls of the mounting groove 10 and the placement groove 12, and a screw 17 is threaded inside the operating hole 16. The screw 17 can be rotated through the operating hole 16, and a wrench can be inserted into the operating hole 16 for operation. The operating holes 16 on the two placement grooves 12 are symmetrically arranged. In order to accommodate the flipping use of the cover plate 13, the operating holes 16 in the two mounting grooves 10 are located in the upper area of ​​the mounting groove 10, reducing the need for the operator to squat or bend over due to the lower position of the operating hole 16 on the lower mounting groove 10, making operation more convenient.

[0037] It should be noted that each screw 17 is concentrically fitted with a limiting shaft 18, and the limiting shaft 18 is fixedly connected to the inner wall of the operating hole 16. Through the limiting shaft 18, the screw 17 can be rotated while being used, and it can also be prevented from falling off after disassembly, improving reliability. The filter cotton 6 is externally fitted with a mounting frame 4, with an insert block 19 at the bottom and corresponding insertion holes on the inner bottom wall of the mounting groove 10. The top of the mounting frame 4 is fitted with a suitable hole for the screw 1. The threaded hole for screwing in the 7 threaded part, through the mounting frame 4, ensures the installability of the filter cotton 6. The insert block 19, in conjunction with the insert hole, allows the filter cotton 6 to be better installed into the mounting groove 10. The side wall of the cover plate 13 away from the rotating shaft 15 is also provided with a threaded hole suitable for screwing in the screw 17, so that the screw 17 can lock and position the cover plate 13. The mounting frame 4 is provided with a sealing strip on the side corresponding to the mounting groove 10 and on both sides of the cover plate 13 to ensure the airtightness after installation and prevent air from entering the cabinet 1 from the gaps.

[0038] In summary, when the electrical cabinet of this thermal power plant needs to dissipate heat and ventilate the interior of the cabinet 1, the exhaust fan 5 is turned on to drive the air flow inside the cabinet 1. When the filter cotton 6 is no longer usable, the air inlet side cover 7 is opened, and the corresponding screw 17 is rotated to remove the filter cotton 6 on that side. If a new filter cotton 6 is available, it can be installed accordingly. If a new filter cotton 6 is installed, since the other filter cotton 6 was installed earlier, it can be used first. Therefore, the cover 13 is closed into the placement slot 12 corresponding to the newly installed filter cotton 6. If a new filter cotton 6 cannot be obtained for installation in time, the cover 13 can be removed, flipped over into the other placement slot 12 and locked, and the other filter cotton 6 can be used. When a new filter cotton 6 is available, it can be installed in the empty installation slot 10. The operation is convenient. Before flipping the cover 13, the cover 13 and the used placement slot 12 need to be wiped.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A thermal power plant electrical cabinet comprising a cabinet body (1), the front side of the cabinet body (1) is provided with a cabinet door (2), the side wall of the cabinet body (1) is provided with an air inlet hole (3) and an air outlet hole, characterized in that, Also include: Side cover, the side cover is installed on the outside wall of the cabinet (1) rotationally; Wherein, the side cover installed on one side of the air inlet hole (3) is set as an air inlet side cover (7), and the side cover installed on one side of the air outlet hole is set as an air outlet side cover (8); Air outlet fan (5), the air outlet fan (5) is installed on the air outlet side cover (8); Filter cotton (6), the filter cotton (6) is detachably installed on the air inlet side cover (7).

2. A power plant electrical cubicle according to claim 1, characterised in that, The inner wall of the air inlet side cover (7) is provided with mounting groove (10) at upper and lower positions, and a plurality of through holes (11) are arranged in each mounting groove (10), and the filter cotton (6) is detachably installed in the mounting groove (10) through the mounting structure.

3. A power plant electrical cubicle according to claim 2, characterised in that, The outer wall of the air inlet side cover (7) is provided with placing groove (12) at upper and lower positions, and two placing grooves (12) correspond to two mounting grooves (10) respectively, wherein the placing groove (12) is provided with cover plate (13).

4. A power plant electrical cubicle according to claim 3, characterised in that, The bottom of the cover plate (13) is provided with connecting rod (14), and the connecting rod (14) is at least two, and the connecting rod (14) is vertically connected with rotating shaft (15), and the through groove suitable for placing the connecting rod (14) is arranged between the two placing grooves (12), and the middle part of the through groove is provided with the insertion hole for the rotation of the rotating shaft (15), the cover plate (13) is placed in the placing groove (12), and the connecting rod (14) is placed in the through groove, and the rotating shaft (15) is rotatably arranged in the insertion hole of the corresponding position.

5. A power plant electrical cubicle according to claim 4, characterised in that, The horizontal side wall of the mounting groove (10) and the placing groove (12) is provided with operation hole (16), and the operation hole (16) is internally screwed with screw rod (17).

6. A power plant electrical cubicle according to claim 5, characterised in that, The operation holes (16) on the two placing grooves (12) are symmetrically arranged, and the operation holes (16) in the two mounting grooves (10) are located in the upper region of the mounting groove (10).

7. A power plant electrical cubicle according to claim 6, characterised in that, The limiting shaft (18) is arranged in the screw rod (17) in series, and the limiting shaft (18) is fixedly connected with the inner wall of the operation hole (16).

8. A power plant electrical cubicle according to claim 7, characterised in that, The outer part of the filter cotton (6) is provided with mounting frame (4), the bottom of the mounting frame (4) is provided with insertion block (19), and the corresponding insertion hole is arranged on the inner bottom wall of the mounting groove (10), and the top of the mounting frame (4) is provided with screw hole suitable for screwing into the screw rod (17).

9. A power plant electrical cubicle according to claim 8, characterised in that, The side wall of the cover plate (13) away from the rotating shaft (15) is also provided with screw hole suitable for screwing into the screw rod (17).

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