Dustproof switch cabinet

Abstract

The utility model provides a dustproof switch cabinet belongs to switch cabinet dust removal technical field, include: switch cabinet main part, gas supply module is used for providing compressed gas, gas pressurizing module is connected with gas supply module through pipeline, blow -off module contains the multiple blow -off gas holes of being established on switch cabinet wiring terminal, is communicated with the gas source after pressurization through conversion joint, negative pressure dust removal module includes the fan of having the inclined blade, filter screen, dust collection box and barometric pressure difference generating mechanism, and the rotation axis of fan and exhaust port central axis angle of 5 15 degrees is pressed in the middle. Compressed gas in the utility model passes through gas pressurizing module and is delivered to switch cabinet main part, is arranged with blow -off gas hole on switch cabinet wiring terminal, and the dust and other impurities on wiring terminal are swept. The dust and impurities after cleaning are collected through negative pressure dust removal module, and the dust removal efficiency is improved greatly.

Description

Technical Field

[0001] This utility model relates to the field of switch cabinet dust removal technology, and in particular to a dustproof switch cabinet. Background Technology

[0002] Switchgear in power plants is a crucial power control component of production equipment. Its proper functioning directly impacts the normal operation of the production line. Regular dust removal is an important routine maintenance step to ensure the switchgear's optimal working condition.

[0003] Traditional dust removal methods for switchgear involve using blowers or hair dryers to remove dust covering the cabinet. However, this traditional method has two major drawbacks: First, while blowers can remove lighter and drier dust, the insufficient airflow often fails to remove large, damp, or corrosive dust particles, which pose the greatest safety threat to the switchgear. To remove these particles, further cleaning with screwdrivers and stiff brushes is necessary after blowing, increasing the workload and slowing down the cleaning process. Second, because of the blowing method, dust is scattered throughout the cabinet, and some eventually settles on the internal components, resulting in incomplete removal. Utility Model Content

[0004] This utility model provides a dustproof switch cabinet to solve the defects of existing switch cabinets.

[0005] This utility model provides a dustproof switch cabinet, comprising: a switch cabinet body; an air supply module for providing compressed gas; a gas boosting module connected to the air supply module via a pipeline; a purging module including multiple sets of purging air holes provided on the switch cabinet terminals, which are connected to the boosted air source via conversion connectors; and a negative pressure dust removal module including a fan with inclined blades, a filter screen, a dust collection box, and a pressure difference generating mechanism, wherein the rotation axis of the fan forms an angle of 5-15° with the central axis of the exhaust port.

[0006] According to the dustproof switch cabinet provided by this utility model, the air supply module includes: an air compressor; an electromagnetic regulating valve, the air inlet of which is connected to the air outlet of the air compressor; and a pressure buffer tank, the input of which is connected to the output of the electromagnetic regulating valve.

[0007] According to the dustproof switch cabinet provided by this utility model, the gas boosting module includes: a two-stage boosting cylinder with a boosting ratio of 1:3-1:5; a pressure sensor and a safety relief valve located at the output end of the boosting cylinder, which releases pressure in response to the pressure sensor signal.

[0008] According to the dustproof switch cabinet provided by this utility model, the arrangement of the blowing air holes is as follows: each group of terminals corresponds to 3-5 oblique air holes with a diameter of 0.8-1.2mm; the axis of each air hole forms an angle of 30-45° with the surface of the terminal; the spray coverage area of ​​adjacent air holes overlaps by 20%-30%.

[0009] According to the present invention, a dustproof switch cabinet is provided, wherein the fan blades of the negative pressure dust removal module are provided with a windward angle of 15-25° and a tapered blade structure.

[0010] According to the present invention, a dustproof switch cabinet is provided, wherein the filter screen adopts a multi-layer composite structure, including: an outer metal coarse filter screen with a pore size of 100-150μm, a middle HEPA filter layer, and an inner activated carbon adsorption layer.

[0011] According to the present invention, a dustproof switch cabinet is provided, wherein the surface of the fan blades is provided with an antistatic coating.

[0012] According to the present invention, a dustproof switch cabinet is provided, wherein a one-way dust net is provided at the bottom of the main body of the switch cabinet.

[0013] According to the present invention, a dustproof switch cabinet is provided, wherein the unidirectional dust net has a V-shaped structure and its two ends are detachably connected to the side wall of the switch cabinet body.

[0014] According to the present invention, a dustproof switch cabinet is provided, wherein the unidirectional dust filter is connected to the main body of the switch cabinet through a snap-fit ​​structure.

[0015] The dustproof switchgear provided by this utility model uses compressed gas delivered to the switchgear body via a gas pressurization module. Purge air holes are arranged on the switchgear terminals to clean dust and other impurities from the terminals. The cleaned dust and impurities are then collected by a negative pressure dust removal module, greatly improving dust removal efficiency. Attached Figure Description

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

[0017] Figure 1 This is a structural schematic diagram of the dustproof switch cabinet provided by this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the unidirectional dust net provided by this utility model.

[0019] Figure label:

[0020] 10. Dust;

[0021] 20. Pipeline;

[0022] 100. Main body of the switchgear;

[0023] 110. One-way dust filter; 120. Clip; 130. Dust collection tray;

[0024] 200. Gas supply module;

[0025] 210. Air compressor; 220. Solenoid regulating valve;

[0026] 300. Gas booster module;

[0027] 310. Boost cylinder;

[0028] 400. Purge module;

[0029] 410. Purge air port; 420. Adapter connector;

[0030] 500. Negative pressure dust removal module;

[0031] 510. Fan; 520. Filter; 530. Dust collection box; 540. Exhaust port; 550. Motor. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0033] In the description of this utility model, it should be understood that 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. Therefore, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0034] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" indicate the direction or positional relationship, which is usually based on Figure 1The orientation and position of the dustproof switch cabinet shown are for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or component referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0035] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0036] This utility model provides a dustproof switch cabinet. See [link / reference] Figure 1 The system includes: a switch cabinet body 100; a gas supply module 200 for providing compressed gas; a gas booster module 300 connected to the gas supply module 200 via a pipe; a purging module 400 including multiple sets of purging air holes 410 located on the switch cabinet terminals, which are connected to the boosted gas source via a conversion connector 420; and a negative pressure dust removal module 500 including a fan 510 with inclined blades, a filter screen 520, a dust collection box 530, and a pressure difference generation mechanism, wherein the rotation axis of the fan 510 forms an angle of 5-15° with the central axis of the exhaust port 540.

[0037] The gas supply module 200 provides compressed gas, which is then formed into an airflow by the gas booster module 300 and delivered to the switch cabinet body 100. The switch cabinet terminals are equipped with purge air holes 410 to clean dust and other impurities from the terminals. The cleaned dust and impurities are collected by the negative pressure dust removal module 500, greatly improving dust removal efficiency.

[0038] The fan 510 has blades at a certain angle, like an airplane propeller. When the motor 550 starts and the fan 510 blades rotate, they push air to the air pressure difference generating mechanism. The air pressure difference generating mechanism has an exhaust port 540. Air is continuously discharged through the exhaust port 540, causing the internal air pressure of the negative pressure dust removal module 500 to decrease. The external atmospheric pressure is greater than the internal air pressure of the negative pressure dust removal module 500, forming an air pressure difference. Dust, microorganisms, and other contaminants from the switch cabinet body 100 enter the negative pressure dust removal module 500 along with the air through the conveying pipe. They then pass through the filter 520 installed inside the negative pressure dust removal module 500, causing the dust and other contaminants to remain inside the negative pressure dust removal module 500. The relatively clean air is discharged through the exhaust port 540 under the action of the fan 510, and the cycle repeats to achieve the purpose of dust removal. The remaining dust, microorganisms, and other contaminants are collected in the dust collection box 530 at the bottom of the negative pressure dust removal module 500.

[0039] For example, the dust collection box 530 is detachably installed inside the negative pressure dust removal module 500. After a certain amount of dust is collected, the dust collection box 530 is removed and cleaned.

[0040] In one embodiment, the air supply module 200 includes: an air compressor 210; an electromagnetic regulating valve 220, the inlet of which is connected to the outlet of the air compressor 210; and a pressure buffer tank, the input of which is connected to the output of the electromagnetic regulating valve 220.

[0041] The airflow generated by the air compressor 210 is regulated by the electromagnetic regulating valve 220 to adjust the output volume, and the air pressure buffer tank buffers the airflow output from the electromagnetic regulating valve 220.

[0042] In one embodiment, the gas boosting module 300 includes: a two-stage boosting cylinder 310 with a boosting ratio of 1:3 to 1:5; a pressure sensor located at the output end of the boosting cylinder 310; and a safety relief valve that releases pressure in response to the pressure sensor signal.

[0043] The airflow output from the pressure buffer tank is transformed into a high-pressure airflow with a certain speed by the secondary booster cylinder 310, and then delivered to the purging module 400 for cleaning dust and other contaminants. A pressure sensor monitors the airflow pressure and, in conjunction with the safety relief valve, controls the airflow pressure. When the airflow pressure becomes too high, the safety relief valve is activated to prevent accidents.

[0044] In one embodiment, the purge air holes 410 are arranged as follows: each group of terminals corresponds to 3-5 oblique air holes with a diameter of 0.8-1.2mm; the axis of each air hole forms an angle of 30-45° with the terminal surface; the spray coverage area of ​​adjacent air holes overlaps by 20%-30%.

[0045] In one embodiment, the fan 510 blades of the negative pressure dust removal module 500 have a windward angle of 15-25° and a tapered blade structure. The filter 520 adopts a multi-layer composite structure, including: an outer metal coarse filter with a pore size of 100-150μm, a middle HEPA filter layer, and an inner activated carbon adsorption layer.

[0046] For example, the blades of fan 510 are provided with an antistatic coating.

[0047] In one embodiment, see Figure 1-2 A one-way dust filter 110 is installed at the bottom of the switch cabinet body 100. The one-way dust filter 110 has a V-shaped structure and its two ends are detachably connected to the side walls of the switch cabinet body 100. The one-way dust filter 110 is connected to the switch cabinet body 100 through a snap-fit ​​structure 120.

[0048] Two one-way dust filters 110 are connected at one end by a clip 120, and the other end is installed on the inner wall of the switch cabinet by a clip 120, forming a V-shaped structure. Dust blown down through the purge air hole 410 falls into the bottom of the switch cabinet body 100 through the one-way dust filter 110, and the one-way dust filter 110 can prevent dust from returning to the top of the switch cabinet body 100 from bottom to top.

[0049] For example, at the bottom of the switch cabinet body 100, below the one-way dust net 110, there is a dust collection tray 130 for collecting some dust that does not enter the negative pressure dust removal module 500 through the conveying pipe. The dust collection tray 130 can be removed for cleaning.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model 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 of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A dustproof switch cabinet, characterized in that, include: Switch cabinet body; Gas supply module, used to provide compressed gas; The gas booster module is connected to the gas supply module via a pipeline; The purging module includes multiple sets of purging air holes located on the switch cabinet terminals, which are connected to a pressurized air source via a conversion connector. The negative pressure dust removal module includes a fan with inclined blades, a filter screen, a dust collection box, and an air pressure difference generation mechanism. The rotation axis of the fan forms an angle of 5-15° with the central axis of the exhaust port.

2. The dustproof switchgear according to claim 1, characterized in that, The gas supply module includes: Air compressor; The electromagnetic regulating valve has its inlet end connected to the air compressor outlet. The air pressure buffer tank has its input end connected to the output end of the solenoid regulating valve.

3. The dustproof switchgear according to claim 2, characterized in that, The gas booster module includes: The two-stage booster cylinder has a boost ratio of 1:3 to 1:5; A pressure sensor is located at the output end of the booster cylinder. The safety relief valve releases pressure in response to a pressure sensor signal.

4. The dustproof switchgear according to claim 1, characterized in that, The arrangement of the purge air holes is as follows: Each set of terminals corresponds to 3-5 angled air holes with a diameter of 0.8-1.2mm; The axis of each vent forms an angle of 30-45° with the terminal surface; The spray coverage area of ​​adjacent vents overlaps by 20%-30%.

5. The dustproof switchgear according to claim 1, characterized in that, The fan blades of the negative pressure dust removal module have a windward angle of 15-25° and a tapered blade structure.

6. The dustproof switchgear according to claim 1, characterized in that, The filter screen adopts a multi-layer composite structure, including: an outer metal coarse filter screen with a pore size of 100-150μm, a middle HEPA filter layer, and an inner activated carbon adsorption layer.

7. The dustproof switchgear according to claim 5, characterized in that, The fan blades are coated with an antistatic coating.

8. The dustproof switchgear according to claim 1, characterized in that, The bottom of the main body of the switch cabinet is equipped with a one-way dust filter.

9. The dustproof switchgear according to claim 8, characterized in that, The unidirectional dust filter has a V-shaped structure, and its two ends are detachably connected to the side wall of the main body of the switch cabinet.

10. The dustproof switchgear according to claim 9, characterized in that, The unidirectional dust filter is connected to the main body of the switch cabinet via a snap-fit ​​structure.

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