Explosion-proof power distribution cabinet and method for monitoring power distribution cabinet operation

Abstract

The present invention discloses an explosion-proof power distribution cabinet and a method for monitoring the operation of the power distribution cabinet. An extension portion is provided on one side of the cabinet body, the inner wall of the cabinet body is hollow, one end of the extension portion is connected to the cabinet body, a wind and sand removal device is provided inside the cabinet body, the wind and sand removal device includes a wind and sand removal wheel, the interior of the wind and sand removal wheel is evenly provided with adsorption holes, the interior of the adsorption holes is filled with a regenerable adsorbent, one end of the wind and sand removal wheel is connected to the extension portion, the inner wall of the cabinet body is provided with a rack through sliding insertion, the inner wall of the cabinet body is fixed with a motor through welding, the outer side of the output shaft of the motor is sleeved with a large gear, the large gear is meshed with the rack, the bottom of the wind and sand removal wheel is fixed with a small gear through welding, the small gear is meshed with the rack, the wind and sand removal wheel is divided into a purification area and a regeneration area. The device solves the current problem of poor practicality.

Description

Technical Field

[0001] The present invention belongs to the technical field of power distribution cabinets, and in particular relates to an explosion-proof power distribution cabinet and a method for monitoring the operation of the power distribution cabinet. Background Art

[0002] Existing power distribution cabinets require ventilation during use. However, in areas with severe sandstorms, dust can easily enter and damage internal electrical components. Installing dust screens reduces ventilation efficiency. Furthermore, because the distribution box must maintain a constant temperature during use, when the outside temperature differs significantly from the inside, such as in desert areas where the air is too cold at night, the air needs to be heated, consuming additional energy and reducing practicality. This phenomenon has become a pressing issue for researchers in this field. Summary of the Invention

[0003] The purpose of the present invention is to provide an explosion-proof power distribution cabinet and a method for monitoring the operation of the power distribution cabinet for existing skidding equipment, so as to solve the problems raised in the above background technology.

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions: an explosion-proof distribution cabinet and a method for monitoring the operation of a distribution cabinet, comprising a cabinet body, characterized in that an extension portion is provided on one side of the cabinet body, the inner wall of the cabinet body is hollow, one end of the extension portion is connected to the cabinet body, and a sand removal device is provided inside the cabinet body.

[0005] The present invention further describes that the wind-sand removal device includes a wind-sand removal wheel, the interior of which is evenly provided with adsorption holes, the interior of which is filled with a regenerable adsorbent, and one end of the wind-sand removal wheel is connected to the extension portion.

[0006] The present invention further describes that a rack is slidably inserted into the inner wall of the cabinet, a motor is fixed to the inner wall of the cabinet by welding, a large gear is sleeved on the outside of the output shaft of the motor, the large gear is meshed with the rack, a small gear is fixed to the bottom of the wind and sand removal wheel by welding, the small gear and the rack are meshed with each other, and the wind and sand removal wheel is divided into a purification area and a regeneration area.

[0007] The present invention further describes that an exhaust pipe is installed on one side of the cabinet, one end of the exhaust pipe is connected to the turbocharger, one end of the turbocharger is connected to the heat exchanger 1, one end of the heat exchanger 1 is connected to the extension part, and one end of the exhaust pipe is connected to the heat exchanger 3.

[0008] The present invention further illustrates that one end of the turbocharger is through-connected to air pump 2, the inlet end of the air pump 2 is communicated with the outside air, one end of the heat exchanger 1 is through-connected to switching valve 1, one end of the switching valve 1 is through-connected to air pump 1, the air pump 1 is through-connected to one end of the wind and sand removal wheel, the side wall of the cabinet is provided with an entry gap, the entry gap is arranged in a wrapped shape on the outer peripheral surface of the extension part, the entry gap and air pump 1 are communicated with each other, and a valve is provided at one end of the entry gap.

[0009] The present invention further illustrates that one end of the switching valve 1 is connected to the switching valve 2, the switching valve 2 is connected to the regeneration area of ​​the wind sand removal wheel, and the air pump 1 is connected to the adsorption area of ​​the wind sand removal wheel.

[0010] The present invention further illustrates that one end of the second switching valve is connected to the second heat exchanger, the second heat exchanger is connected between the turbocharger and the first heat exchanger, and the other end of the second heat exchanger is connected to the regeneration zone of the wind and sand removal wheel.

[0011] A method for monitoring the operation of a power distribution cabinet, characterized by comprising the following specific steps:

[0012] S1. Install a gas pressure sensor in the adsorption hole of each wind sand removal wheel;

[0013] S2. Start the air pump to pump the external air inward from the dust removal wheel and send the air into the distribution cabinet through the extension part;

[0014] S3. When the gas pressure sensor senses a high pressure, it means that too much wind and sand have accumulated. At this time, the motor is started to switch the adsorption area and the regeneration area.

[0015] Compared with the prior art, the beneficial effects achieved by the present invention are: the present invention can filter the wind and sand outside the distribution cabinet without affecting the air circulation. At the same time, when the wind and sand are blocked, it can be filtered and continued to be used. At the same time, it can realize the heat exchange of the air and maintain a constant temperature in the distribution cabinet. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 It is a schematic top view of the overall structure of the present invention;

[0019] Figure 3 The present invention Figure 2A magnified schematic diagram of area A in the middle;

[0020] Figure 4 It is a structural schematic diagram of the wind-sand removal device of the present invention;

[0021] Figure 5 This is a schematic diagram of the gas circuit principle of the present invention Figure 1 ;

[0022] Figure 6 This is a schematic diagram of the gas circuit principle of the present invention Figure 2 ;

[0023] In the figure: 1. Cabinet; 2. Extension; 21. Entry gap; 3. Wind and sand removal device; 4. Wind shield; 11. Mounting hole; 12. Exhaust pipe; 13. Return air duct; 131. Valve; 31. Air pump 1; 32. Heat exchanger 1; 321. Switching valve 1; 322. Switching valve 2; 33. Air pump 2; 34. Wind and sand removal wheel; 341. Adsorption hole; 35. Rack; 351. Pinion; 352. Motor; 353. Large gear; 36. Turbocharger; 37. Heat exchanger 2. DETAILED DESCRIPTION

[0024] The following is a non-limiting detailed description of the technical solutions of the present invention in conjunction with preferred embodiments and the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0025] See also Figure 1-6 The present invention provides a technical solution: an explosion-proof power distribution cabinet and a method for monitoring the operation of the power distribution cabinet, comprising a cabinet body 1, characterized in that an extension portion 2 is provided on one side of the cabinet body 1, the inner wall of the cabinet body 1 is hollow, one end of the extension portion 2 is connected to the cabinet body 1 through-hole, and a wind and sand removal device 3 is provided inside the cabinet body 1. When in use, the wind and sand removal device 3 is used to filter wind and sand to prevent internal components from being damaged;

[0026] The wind-sand removal device 3 includes a wind-sand removal wheel 34. The wind-sand removal wheel 34 has adsorption holes 341 evenly distributed therein. The adsorption holes 341 are filled with a regenerable adsorbent. One end of the wind-sand removal wheel 34 is connected to the extension portion 2. External air enters the wind-sand removal wheel 34 and passes through the regenerable adsorbent inside. The regenerable adsorbent adsorbs the dust and sand inside, and the clean air enters the extension portion 2.

[0027] The regenerable adsorbent is preferably composed of a silica gel layer and an industrial-grade HEPA filter. Sand particles are adsorbed on the silica gel layer, and other impurities are filtered by the industrial-grade HEPA filter to achieve the filtration of wind and sand.

[0028] The inner wall of the cabinet 1 is slidably plugged with a rack 35, and the inner wall of the cabinet 1 is fixed with a motor 352 by welding. The outer surface of the output shaft of the motor 352 is sleeved with a large gear 353, which meshes with the rack 35, and the bottom of the sand removal wheel 34 is fixed with a small gear 351 by welding, which meshes with the rack 35. The sand removal wheel 34 is divided into a purification zone and a regeneration zone. The air flows in the purification zone and the regeneration zone in opposite directions. The air flows inside the power distribution cabinet in the purification zone and flows to the outside of the power distribution cabinet in the regeneration zone, realizing adsorption and regeneration, which is convenient for continuous operation. By turning on the motor 352 at intervals, its output shaft drives the sand removal wheel 34 to rotate through a series of transmissions, so that the purification zone and the regeneration zone are alternately arranged in the sand removal wheel 34, and the clean air in the room is discharged in the opposite direction through the regeneration zone. The entire sand removal wheel 34 adsorbs and regenerates at the same time, taking away the sand and dust adsorbed in the sand removal wheel 34, and there is no need to manually clean the sand removal device 3. It is easy to use and can isolate the air intake and outlet.

[0029] An exhaust pipe 12 is correspondingly installed on one side of the cabinet body 1. One end of the exhaust pipe 12 is connected to a turbocharger 36. One end of the turbocharger 36 is connected to a heat exchanger 32. One end of the heat exchanger 32 is connected to the extension part 2. One end of the exhaust pipe 12 is connected to a heat exchanger 3. The turbocharger 36 is used to amplify the cooling and heating effects. It is connected to an external power supply and the turbocharger 36 is turned on. The heating end discharges the hot air into the heat exchanger 32 to exchange and store the heat. The cooling end discharges the cold air into the heat exchanger for further cooling until it is discharged from the exhaust pipe 12 to the external cold air. When the outdoor temperature is relatively cold, the blown air is heat exchanged and then discharged into the distribution cabinet, avoiding direct introduction of cold air. When air exchange is achieved, the electrical components inside the distribution cabinet are prevented from malfunctioning at low temperatures.

[0030] One end of the turbocharger 36 is connected to the air pump 2 33, the inlet end of the air pump 2 33 is in communication with the outside air, one end of the heat exchanger 1 32 is connected to the switching valve 1 321, one end of the switching valve 1 32 is connected to the air pump 1 31, and the air pump 1 31 is connected to one end of the sand removal wheel 34;

[0031] One end of the switching valve 1 321 is connected to the switching valve 2 322, the switching valve 2 322 is connected to the regeneration area of ​​the wind and sand removal wheel 34, the air pump 1 31 is connected to the adsorption area of ​​the wind and sand removal wheel 34, and the side wall of the cabinet 1 is provided with an inlet gap 21, which is arranged in a wrapped shape at the outer peripheral surface of the extension part 2, and the inlet gap 21 and the air pump 1 31 are connected to each other. A valve 131 is provided at one end of the inlet gap 21. When the return air is required, the inlet gap 21 is opened, so that the air entering the distribution cabinet is sucked into the heat exchanger 2 37 for cooling through the air pump 1 31, and then discharged into the exhaust pipe connected to the wind and sand removal wheel 34. At the same time, the heat exchanger 2 37 receives the cold air discharged from the cooling end of the turbocharger 36, and the air at the hot end of the turbocharger 36 is cooled by the heat exchanger 3 and then discharged to the atmosphere, thereby realizing two-way air exchange between the inside and outside of the distribution cabinet, improving the ventilation effect, and recovering the heat of the air discharged from the outside of the distribution cabinet to avoid energy waste.

[0032] One end of the second switching valve 322 is connected to the second heat exchanger 37, which is connected between the turbocharger 36 and the first heat exchanger 32. The other end of the second heat exchanger 37 is connected to the regeneration area of ​​the wind and sand removal wheel 34.

[0033] A method for monitoring the operation of a power distribution cabinet, characterized by comprising the following specific steps:

[0034] S1. Install a gas pressure sensor in the adsorption hole 341 of each wind-sand removal wheel 34;

[0035] S2. Start the air pump 31 to pump the external air inward from the wind sand removal wheel 34 and send the air into the distribution cabinet through the extension part 2;

[0036] S3. When the gas pressure sensor senses a high pressure, it means that too much wind and sand have accumulated. At this time, the motor 352 is started to switch the adsorption area and the regeneration area. This method can dynamically detect the pressure inside the wind and sand removal wheel 34. When blockage occurs inside, reverse clearing can be performed instantly to prevent the inability to filter wind and sand when sandstorms occur frequently, thereby making the entire distribution cabinet more adaptable to windy and sandy weather.

[0037] In the description of the present invention, it should be understood that the terms "up", "down", "front", "back", "left", "right", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0038] Finally, it should be noted that the above embodiments are intended only to illustrate the technical solutions of the present invention and are not intended to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will appreciate that modifications may be made to the technical solutions described in the aforementioned embodiments, or that some of the technical features may be replaced with equivalents. Such modifications or replacements do not deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. An explosion-proof power distribution cabinet, comprising a cabinet body (1), characterized in that: An extension portion (2) is provided on one side of the cabinet (1); the inner wall of the cabinet (1) is hollow; one end of the extension portion (2) is connected to the cabinet (1); and a wind and sand removal device (3) is provided inside the cabinet (1); The wind-sand removal device (3) comprises a wind-sand removal wheel (34), adsorption holes (341) are evenly formed inside the wind-sand removal wheel (34), and the adsorption holes (341) are filled with a regenerable adsorbent. One end of the wind-sand removal wheel (34) is connected to the extension portion (2). The inner wall of the cabinet (1) is connected to a rack (35) by sliding, the inner wall of the cabinet (1) is fixed to a motor (352) by welding, the outer portion of the output shaft of the motor (352) is sleeved with a large gear (353), the large gear (353) is meshed with the rack (35), the bottom of the wind and sand removal wheel (34) is fixed to a small gear (351) by welding, the small gear (351) and the rack (35) are meshed with each other, and the wind and sand removal wheel (34) is divided into a purification zone and a regeneration zone; Wherein: an exhaust pipe (12) is correspondingly installed on one side of the cabinet (1), one end of the exhaust pipe (12) is connected to a turbocharger (36), one end of the turbocharger (36) is connected to a heat exchanger 1 (32), one end of the heat exchanger 1 (32) is connected to the extension portion (2), and one end of the exhaust pipe (12) is connected to a heat exchanger 3; Wherein: one end of the turbocharger (36) is connected to the air pump 2 (33), the inlet end of the air pump 2 (33) is communicated with the outside air, one end of the heat exchanger 1 (32) is connected to the switching valve 1 (321), one end of the switching valve 1 (321) is connected to the air pump 1 (31), the air pump 1 (31) is connected to one end of the wind and sand removal wheel (34), the side wall of the cabinet (1) is provided with an entry gap (21), the entry gap (21) is arranged in a wrapped shape at the outer peripheral surface of the extension part (2), the entry gap (21) and the air pump 1 (31) are connected to each other, and one end of the entry gap (21) is provided with a valve (131).

2. The explosion-proof power distribution cabinet according to claim 1, characterized in that: One end of the switching valve 1 (321) is connected to the switching valve 2 (322), the switching valve 2 (322) is connected to the regeneration area of ​​the wind and sand removal wheel (34), and the air pump 1 (31) is connected to the adsorption area of ​​the wind and sand removal wheel (34).

3. The explosion-proof power distribution cabinet according to claim 2, characterized in that: One end of the switching valve 2 (322) is connected to the heat exchanger 2 (37), and the heat exchanger 2 (37) is connected between the turbocharger (36) and the heat exchanger 1 (32). The other end of the heat exchanger 2 (37) is connected to the regeneration zone of the wind and sand removal wheel (34).

4. A method for monitoring the operation of the power distribution cabinet according to any one of claims 1 to 3, characterized in that: The specific steps include: S1. Installing a gas pressure sensor in the adsorption hole (341) of each wind and sand removal wheel (34); S2, start the air pump 1 (31) to pump the external air inward from the wind and sand removal wheel (34), and send the air into the distribution cabinet through the extension part (2); S3. When the gas pressure sensor senses a high pressure, it means that too much wind and sand have accumulated. At this time, the motor (352) is started to switch between the adsorption zone and the regeneration zone.

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