An anti-condensation alternating dehumidification ring main switch cabinet and its usage method

Abstract

The present invention relates to the technical field of ring main units. The present invention discloses an anti-condensation alternating dehumidification ring main unit and its usage method. The anti-condensation alternating dehumidification ring main unit includes a cabinet body, a control system is arranged inside the cabinet body, a dehumidification unit is arranged on the cabinet body, and the control system and the dehumidification unit are controlled and connected; the dehumidification unit includes an alternating dehumidification component arranged on the back of the cabinet body, and a ventilation component arranged on the alternating dehumidification component; the alternating dehumidification component includes a support cover arranged on the outer back of the cabinet body, and the support cover is a cover body with a ventilation opening at the bottom, a net cylinder arranged inside the support cover, and the cross section of the net cylinder is arranged in a dovetail shape, a water-absorbing cotton arranged on the inner cylinder wall of the net cylinder, and a gas guide cylinder with a dovetail-shaped inner cross section arranged inside the water-absorbing cotton. For this anti-condensation alternating dehumidification ring main unit, when ventilating and exchanging air inside the cabinet body, the water-absorbing cotton works alternately at each position to dehumidify the air, so that the air is dehumidified before entering the cabinet body.

Description

Technical Field

[0001] The present invention relates to the technical field of ring main units, and particularly to an anti-condensation alternating dehumidification ring main unit and a using method thereof. Background Art

[0002] Ring main units are usually installed outdoors. In rainy and snowy weather and with large temperature differences, the ventilation effect inside the cabinet is poor, and local condensation occurs, which easily leads to short-circuit accidents and affects the use safety of equipment and the reliability of power supply.

[0003] In the patent with the publication number CN106898952B, an anti-condensation ring main unit and an anti-condensation method for the ring main unit are disclosed. When the temperature inside the cabinet body is higher than or lower than the temperature outside the cabinet body, the driving device controls the corresponding movement of the blocking part, so that air circulation is generated or not generated between the inside of the cabinet body and the outside of the cabinet body through the opening part.

[0004] In the patent with the publication number CN219086495U, a ventilation-type ring main unit with anti-condensation is disclosed. Before air enters the cabinet body, the moisture in the air is absorbed by the water-absorbing cotton first, so as to prevent condensation from occurring on the surface of the ring main unit body during the air flow inside the protective outer frame.

[0005] The above patents have the following defects:

[0006] In Comparative Document 1, although the opening part is controlled so that air circulation between the cabinet body and the outside only occurs when the temperature inside the cabinet body is higher than or lower than the temperature outside the cabinet body, at this time, the humid air outside will also enter the cabinet body along the opening part, resulting in the cabinet body being damp, which may cause short circuits, electrical failures or equipment damage, cause corrosion and oxidation of metal parts, reduce the service life of the ring main unit. In a humid environment, electrical equipment is prone to form arcs, increasing the risks of fire and personal safety.

[0007] In Comparative Document 2, although the water-absorbing cotton is used to dehumidify the air entering the cabinet body first, as the use time increases, the cotton fibers will become saturated, resulting in a decrease in the water absorption capacity, and the water absorption effect of the water-absorbing cotton will gradually weaken. Moreover, the water-absorbing cotton absorbs and retains a large amount of water, causing it to become dense and easy to gather together, thus hindering the free flow of air and making it difficult for the outside air to enter the cabinet body. Summary of the Invention

[0008] In view of the problem that the water absorption capacity of the existing anti-condensation alternating dehumidification ring main unit gradually deteriorates during continuous operation, affecting the free flow of air, the present invention is proposed.

[0009] Therefore, the object of the present invention is to provide an anti-condensation alternating dehumidification ring main switch cabinet, and its purpose is: when ventilating and exchanging air in the cabinet body, the water-absorbing cotton works alternately at each position to dehumidify the air, so that the air is dehumidified and then enters the cabinet body.

[0010] To solve the above technical problems, the present invention provides the following technical solutions: an anti-condensation alternating dehumidification ring main switch cabinet, including a cabinet body, a control system is arranged in the cabinet body, the control system includes a first temperature sensor arranged on the inner wall of the cabinet body, a second temperature sensor arranged on the outer wall of the cabinet body, a controller and a control switch arranged on the inner wall of the cabinet body. The first temperature sensor detects the temperature inside the cabinet body, the second temperature sensor detects the temperature outside the cabinet body, and the data detected by both are transmitted into the controller. When the temperature difference between the two is about to reach the set condensation value, the control switch is turned on. A dehumidification unit is arranged on the cabinet body, and the control system is connected to the dehumidification unit in a controlled manner;

[0011] The dehumidification unit includes an alternating dehumidification component arranged on the back of the cabinet body, and a ventilation component arranged on the alternating dehumidification component;

[0012] The alternating dehumidification component includes a support cover arranged on the outer back of the cabinet body, and the support cover is a cover body with a ventilation opening at the bottom, and the outside air can enter the support cover through the ventilation opening. A net cylinder is arranged in the support cover, and the cross section of the net cylinder is in a swallowtail shape. The net cylinder is composed of two plates and a metal net connected between the two plates. A water-absorbing cotton is arranged on the inner cylinder wall of the net cylinder, the water-absorbing cotton is in a ring shape, a guide air cylinder with a swallowtail-shaped inner cross section is arranged in the water-absorbing cotton, the guide air cylinder is rotatably arranged in the annular water-absorbing cotton, and an air inlet is arranged on the cylinder wall of the guide air cylinder. The air outside the net cylinder can pass through the net cylinder and the water-absorbing cotton, and then enter the guide air cylinder through the air inlet.

[0013] As a preferred embodiment of the anti-condensation alternating dehumidification ring main switchgear of the present invention, the following components are included: The ventilation component includes an intake pipe and an exhaust pipe disposed on the back of the cabinet body, a gas guiding inlet pipe disposed at the center of the top of the air guiding cylinder, and the other end of the gas guiding inlet pipe movably penetrates through the top of the support cover and is sealingly rotatably connected to the inner pipe wall of the intake pipe through a sealing bearing. The top of the gas guiding inlet pipe and the net cylinder are rotatably connected through a ball bearing. The ventilation component further includes a motor disposed in the intake pipe, a control switch and the motor are electrically connected through a wire, the control switch controls the on / off of the motor, the motor is connected to the inner pipe wall of the intake pipe through a support frame, a rotating shaft disposed at the output end of the motor, a fan blade disposed on the wall of the rotating shaft. When the motor operates, it drives the fan blade to rotate through the rotating shaft, transporting the air in the air guiding cylinder into the intake pipe. A planetary reducer is disposed at the other end of the rotating shaft, and the planetary reducer is connected to the inner pipe wall of the intake pipe through a support pin, and a transmission frame is disposed at the output end of the planetary reducer, and the transmission frame is disposed on the gas guiding inlet pipe. After deceleration by the planetary reducer, the transmission frame drives the gas guiding inlet pipe to rotate at a speed lower than that of the rotating shaft.

[0014] As a preferred embodiment of the anti-condensation alternating dehumidification ring main switchgear of the present invention, the following components are included: The dehumidification unit further includes a wind guiding component disposed on the ventilation component. The wind guiding component includes two air guiding grooves disposed on the inner back surface of the cabinet body. One end of the intake pipe and the exhaust pipe are respectively communicated with one air guiding groove. It further includes a sealing thin plate disposed on the inner back surface of the cabinet body. The sealing thin plate covers the inner back surface of the cabinet body and blocks the two air guiding grooves. When the cabinet body is not ventilated, the cabinet body is separated from the intake pipe and the exhaust pipe. A wind guiding cloth is disposed on the inner back surface of the cabinet body, and the wind guiding cloth movably penetrates through the sealing thin plate and is provided with a limiting strip, and the limiting strip is disposed outside the sealing thin plate. When the air in the intake pipe moves outwards, it will exert a driving force on the sealing thin plate, causing the sealing thin plate to tilt and open. At this time, the wind guiding cloth between the sealing thin plate and the cabinet body is straightened. Most of the air blown out from the intake pipe moves downward after being guided by the sealing thin plate, and a small part of the air moving upward is blocked by the inclined wind guiding cloth and then moves downward and to both sides, so that most of the cold air entering the cabinet body from the intake pipe first reaches the bottom of the cabinet body. And a limiting frame is disposed on the inner back surface of the cabinet body, and the sealing thin plate is disposed in the limiting frame. The movement position of the sealing thin plate is limited by the limiting frame to prevent it from opening too much and damaging the equipment in the cabinet body.

[0015] As a preferred embodiment of the anti-condensation alternating dehumidification ring main switchgear of the present invention, the following components are included: A drying unit is disposed on the dehumidification unit. The drying unit includes a partition plate disposed in the air guiding cylinder. The air guiding cylinder is divided into an air inlet area and an air outlet area by the partition plate. The air inlet and the air guiding inlet pipe are both disposed in the air inlet area;

[0016] The drying unit further includes a centrifugal water pressing component disposed in the alternating dehumidification component;

[0017] The centrifugal water-pressing assembly includes an air outlet provided on the wall of the air guide cylinder. The air in the air outlet area is discharged outward through the air outlet. The air outlet is arranged away from the air inlet. A support bar is arranged in the air guide cylinder, a pressing roller is arranged in the air outlet area, a pressing frame is arranged on the pressing roller, and a swinging rod is symmetrically and obliquely movably arranged on the support bar. The swinging rod movably penetrates through the support bar, and a counterweight is connected to the tail of the swinging rod. When the air guide cylinder rotates, under the action of centrifugal force, the pressing roller presses against the inner side of the water-absorbing cotton. When the water-absorbing cotton absorbs water, the fibers will expand and form tiny pores. When the water-absorbing cotton is squeezed, these pores will expand due to the squeezing force, causing gaps to appear between the originally dense fibers, enabling the fibers inside the water-absorbing cotton to come into more contact with air and increasing the exposed area of the surface of the water-absorbing cotton. When the air guide cylinder stops rotating, the counterweight exerts a downward pulling force on the inclined swinging rod, thereby driving the pressing frame and the pressing roller to reset, preventing the pressing roller from pressing on one position of the water-absorbing cotton for a long time and causing irreversible deformation of the water-absorbing cotton.

[0018] As a preferred scheme of the anti-condensation alternating dehumidification ring main switch cabinet of the present invention, wherein: the centrifugal water-pressing assembly further includes an air guide outlet pipe arranged at the center of the bottom of the air guide cylinder. The air guide outlet pipe penetrates through the center of the bottom of the net cylinder and is rotatably connected through a ball bearing. One end of the air outlet pipe away from the cabinet body penetrates through the support cover and extends to directly below the air guide outlet pipe, and one end of the air guide outlet pipe away from the air guide cylinder is hermetically and rotatably connected to the air outlet pipe through a sealing bearing. The hot air in the cabinet body is discharged into the air outlet area of the air guide cylinder through the air outlet pipe and the air guide outlet pipe, and when it is discharged through the air outlet on the rotating air guide cylinder, the hot air sprays out from the inner side to the outside of the water-absorbing cotton to perform hot air drying on the water-absorbing cotton.

[0019] As a preferred scheme of the anti-condensation alternating dehumidification ring main switch cabinet of the present invention, wherein: a protection unit is also jointly arranged on the dehumidification unit and the drying unit;

[0020] The protection unit includes a protection component arranged in the alternating dehumidification assembly and an exhaust component arranged on the alternating dehumidification assembly;

[0021] The protection component includes an air suction and filtration cover arranged at the outer bottom of the support cover, which filters the air entering the support cover to prevent dust from entering the support cover and contacting the moist water-absorbing cotton, causing blockage and caking of the water-absorbing cotton. There is a baffle plate arranged at the inner bottom of the support cover. When the baffle plate blocks the ventilation opening, the ventilation opening is closed, and there are ventilation slots on the side wall of the baffle plate. When the baffle plate is lifted, the inside and outside of the support cover are connected through the ventilation slots. There is a sealed sliding tube arranged on the vertical outer pipe wall of the air outlet pipe, a transmission rod arranged between the baffle plate and the sealed sliding tube, a sliding strip hole arranged on the vertical pipe wall of the air outlet pipe, a sliding strip block that movably penetrates the sliding strip hole, and both ends of the sliding strip block are connected to the inner pipe wall of the sealed sliding tube. There is a transmission pin arranged at the center of the upper end of the sliding strip block, and the other end of the transmission pin extends into the air guide outlet pipe and is provided with a windward cover. When the air moves in the air outlet pipe, it will push the windward cover upward. When the windward cover moves upward, it drives the sealed sliding tube to slide upward on the vertical outer pipe wall of the air outlet pipe through the transmission pin and the sliding strip block. While the sealed sliding tube slides upward, it drives the baffle plate to lift and separate from the ventilation opening.

[0022] As a preferred solution of the anti-condensation alternating dehumidification ring main switch cabinet of the present invention, wherein: the exhaust component includes a gas guide ring with a "C"-shaped cross-section, and the gas guide ring is arranged on the inner cover wall of the support cover. It also includes a support ring with a "I"-shaped cross-section arranged inside the gas guide ring. Lubricating grease is applied at the rotating connection of the gas guide ring and the support ring to improve the lubrication effect between the two while achieving sealing. And the support ring is sleeved on the mesh cylinder. There is an air outlet cover arranged on the outer cylinder wall of the mesh cylinder, and the air outlet cover is arranged corresponding to the air outlet. A transmission column is commonly connected between the air outlet cover and the air guide outlet pipe. When the gas guide cylinder drives the air guide outlet pipe to rotate, the air guide outlet pipe drives the air outlet cover to rotate synchronously through the transmission column, so that the air outlet cover always faces the air outlet. There is a gas guide pipe penetrating through the support ring and the air outlet cover, and an exhaust pipe penetrating through the support cover and the gas guide ring. And the pipe orifice of the exhaust pipe is hinged with a cover plate. When the exhaust pipe exhausts air, it pushes open the cover plate. When there is no air exhausting outward from the exhaust pipe, the cover plate closes on the pipe orifice of the exhaust pipe to seal the exhaust pipe, and the outside moist air cannot enter the exhaust pipe.

[0023] Another object of the present invention is to provide a usage method of an anti-condensation alternating dehumidification ring main switch cabinet, aiming to: alternately use each position of the water-absorbing cotton to dehumidify the air entering the cabinet body, accelerate the drying of the water-absorbing cotton, and maintain the water absorption effect of the water-absorbing cotton.

[0024] To achieve the above object, the present invention provides the following technical solution: A usage method of an anti-condensation alternating dehumidification ring main switch cabinet includes the following steps.

[0025] When the control system detects that the temperature difference inside and outside the cabinet body is about to reach the condensation point, start the motor. While the motor drives the fan blade to work, it also drives the gas guide cylinder to rotate synchronously inside the mesh cylinder.

[0026] The air outside the mesh cylinder enters the intake pipe through the air inlet on the air guide cylinder. When the air passes through the water-absorbing cotton, the moisture contained in the air itself is removed. At the same time, in cooperation with the rotating air guide cylinder, each position on the entire water-absorbing cotton works alternately;

[0027] When the air is transported into the cabinet through the intake pipe, it pushes the sealing thin plate to open from the inner back surface of the cabinet. The air guide cloth between the sealing thin plate and the inner back surface of the cabinet is on an inclined plane, guiding the air transported into the cabinet by the intake pipe downward, so that the air first reaches the lower part inside the cabinet and then rises;

[0028] The hot air enters the air outlet area inside the air guide cylinder through the outlet pipe and the air guide outlet pipe. When the air guide cylinder rotates, it generates an outward centrifugal force on the pressure roller. The pressure roller passes through the air outlet and presses on the inner side of the water-absorbing cotton. Along with the rotation of the air guide cylinder, the pressure roller squeezes the water-absorbing cotton, which will change the shape of the water-absorbing cotton. Its shape changes, causing gaps to appear between the originally dense fibers, increasing the exposed area on the surface of the water-absorbing cotton. At the same time, the hot air entering the air outlet area is discharged through the air outlet, passes through the water-absorbing cotton from the inside to the outside, dries the water-absorbing cotton, and accelerates the drying and dehydration of the water-absorbing cotton.

[0029] As a preferred scheme of the usage method of the anti-condensation alternating dehumidification ring main cabinet of the present invention, wherein: when the air moves in the outlet pipe and the air guide outlet pipe, it exerts an upward driving force on the windward cover, driving the baffle plate to disengage from the inner bottom of the support cover, and the outside air is filtered by the air intake filter cover and then supplemented into the support cover;

[0030] When the air guide cylinder and the air guide outlet pipe rotate, they will drive the air outlet cover to rotate synchronously on the outer cylinder wall of the mesh cylinder through the transmission column. When the air outlet cover rotates, it drives the support ring to rotate in the air guide ring through the air guide pipe. The air discharged from the air outlet of the air guide cylinder enters between the air guide ring and the support ring through the air outlet cover and the air guide pipe, and then pushes open the cover plate on the exhaust pipe and is discharged;

[0031] When the control system detects that the temperature inside and outside the cabinet tends to be the same, the motor is turned off, and the sealing thin plate, the baffle plate, and the cover plate all automatically reset, so that both the cabinet and the support cover are in an independent environment, not only preventing the residual moisture on the water-absorbing cotton from entering the cabinet, but also preventing the moisture in the outside air from coming into contact with the water-absorbing cotton.

[0032] The beneficial effects of the present invention:

[0033] When the temperature difference between the inside and outside of the cabinet reaches the set value, the motor starts to work. While continuously adjusting the position of the air inlet, it removes the moisture from the outside air and transports it into the cabinet, making the temperature inside and outside the cabinet tend to be the same, preventing condensation from occurring inside the cabinet, and at the same time enabling each position on the water-absorbing cotton to work alternately for dehumidification, so that the water-absorbing cotton can be reused.

[0034] When the cabinet body is not ventilated, the inside of the cabinet body is automatically separated from the outside world to prevent the moisture on the water-absorbing cotton from entering the cabinet body. When the cabinet body is ventilated, the cabinet body is automatically connected to the air inlet pipe to guide the air entering the cabinet body from the back of the cabinet body. Without affecting the cable trench below the cabinet body, the air convection cycle inside the cabinet body is accelerated, thereby improving the cooling effect inside the cabinet body.

[0035] While the water-absorbing cotton is alternately dehumidified, the centrifugal force is used to squeeze the water-absorbing cotton. While increasing the contact area between the water-absorbing cotton and the air, the hot air discharged from the cabinet body is conveyed into the interior of the water-absorbing cotton to dry the water-absorbing cotton, so that the water-absorbing cotton can maintain an unsaturated water-absorbing state for a long time, improving the dehumidification effect of the water-absorbing cotton on the air entering the cabinet body.

[0036] When the cabinet body is ventilated, the baffle plate disengages from the ventilation opening on the support cover, allowing the outside gas to enter the support cover normally and be suctioned, and can also be discharged through the exhaust pipe. The discharged hot and humid air will not be suctioned into the support cover; when the cabinet body is not ventilated, the support cover is isolated from the outside world to prevent the moisture in the outside air from being absorbed by the water-absorbing cotton. Brief Description of the Drawings

[0037] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. Among them:

[0038] Figure 1 It is a schematic diagram of Embodiment 1 of the present invention.

[0039] Figure 2 It is a schematic diagram of the control system flow of Embodiment 1 of the present invention.

[0040] Figure 3 It is a schematic diagram inside the support cover in Embodiment 1 of the present invention.

[0041] Figure 4 It is a schematic diagram inside the mesh cylinder in Embodiment 1 of the present invention.

[0042] Figure 5 It is Figure 3 an enlarged view of part A in

[0043] Figure 6 It is a schematic diagram inside the cabinet body in Embodiment 2 of the present invention.

[0044] Figure 7 It is a cross-sectional view of the air guide assembly in Embodiment 2 of the present invention.

[0045] Figure 8Schematic diagram of the wind direction when the air guide component in Embodiment 2 of the present invention is working.

[0046] Figure 9 is Figure 8 the enlarged view of part B in

[0047] Figure 10 Schematic diagram of Embodiment 3 of the present invention.

[0048] Figure 11 Schematic diagram inside the support cover of Embodiment 3 of the present invention.

[0049] Figure 12 Cross-sectional view of Embodiment 3 of the present invention.

[0050] Figure 13 is Figure 12 the cross-sectional view in the direction of C-C in

[0051] Figure 14 Schematic diagram of Embodiment 4 of the present invention.

[0052] Figure 15 Schematic diagram inside the support cover of Embodiment 4 of the present invention.

[0053] Figure 16 Schematic diagram of the protection component of Embodiment 4 of the present invention.

[0054] Figure 17 Cross-sectional view of Embodiment 4 of the present invention.

[0055] Figure 18 is Figure 17 the enlarged view of part D in

[0056] In the figure:

[0057] 1. Cabinet body; 2. Dehumidification unit; 21. Alternating dehumidification component; 211. Support cover; 212. Mesh cylinder; 213. Absorbent cotton; 214. Air guide cylinder; 215. Air inlet; 22. Ventilation component; 221. Air inlet pipe; 222. Air outlet pipe; 223. Air guide inlet pipe; 224. Motor; 225. Rotating shaft; 226. Fan blade; 227. Planetary reducer; 228. Transmission frame; 23. Air guiding component; 231. Sealing thin plate; 232. Air guiding cloth; 233. Limit strip; 234. Limit frame; 3. Drying unit; 31. Centrifugal water pressing component; 311. Air outlet; 312. Support bar; 313. Pressing roller; 314. Pressing frame; 315. Swinging rod; 316. Air guide outlet pipe; 32. Partition board; 4. Protection unit; 41. Protection component; 411. Suction filter cover; 412. Baffle plate; 413. Ventilation slot; 414. Sealing sliding pipe; 415. Transmission rod; 416. Sliding strip hole; 417. Sliding strip block; 418. Transmission pin; 419. Windward cover; 42. Exhaust component; 421. Air guide ring; 422. Support ring; 423. Air outlet cover; 424. Transmission column; 425. Air guide pipe; 426. Exhaust pipe; 427. Cover plate. Detailed implementation mode

[0058] Example 1, referring to Figures 1-5 , which is the first embodiment of the present invention, provides an anti-condensation alternating dehumidification ring main switch cabinet. This device includes a cabinet body 1, and a control system is installed inside the cabinet body 1. The control system includes a first temperature sensor installed on the inner wall of the cabinet body 1, a second temperature sensor installed on the outer wall of the cabinet body 1, a controller and a control switch installed on the inner wall of the cabinet body 1. The controller is a PID controller. The first temperature sensor and the second temperature sensor are signal-connected to the controller through wires, and the controller is signal-connected to the control switch through wires. The first temperature sensor detects the temperature inside the cabinet body 1, and the second temperature sensor detects the temperature outside the cabinet body 1. The data detected by both are transmitted into the controller. When the temperature difference between the two is about to reach the set condensation value, the control switch is turned on. When the temperatures inside and outside the cabinet body 1 tend to be the same, the control switch is turned off.

[0059] A dehumidification unit 2 is installed on the cabinet body 1. The dehumidification unit 2 is located on the back of the cabinet body 1, which does not affect the setting of the cable trench below the cabinet body 1. The control system is control-connected to the dehumidification unit 2. The dehumidification unit 2 includes an alternating dehumidification component 21 installed on the back of the cabinet body 1. The alternating dehumidification component 21 includes a support cover 211 connected to the outer back surface of the cabinet body 1, and the support cover 211 is a cover body with a ventilation opening at the bottom. External air can enter the support cover 211 through the ventilation opening. A mesh cylinder 212 is connected to the inner top of the support cover 211, and the cross-section of the mesh cylinder 212 is set in a dovetail shape. The mesh cylinder 212 is composed of two plates and a metal mesh connected between the two plates. A water-absorbing cotton 213 is connected to the inner wall of the inner cylinder of the mesh cylinder 212. The water-absorbing cotton 213 is annular and is connected to the inner wall of the inner cylinder of the mesh cylinder 212. A gas guide cylinder 214 with a dovetail-shaped cross-section is rotatably arranged in the water-absorbing cotton 213, and an air inlet 215 is opened on the wall of the gas guide cylinder 214. The air outside the mesh cylinder 212 can pass through the mesh cylinder 212 and the water-absorbing cotton 213, and then enter the gas guide cylinder 214 through the air inlet 215.

[0060] The dehumidification unit 2 further includes a ventilation component 22 installed on the alternating dehumidification component 21. The ventilation component 22 includes an air inlet pipe 221 and an air outlet pipe 222 communicated with the back of the cabinet body 1. A gas guide inlet pipe 223 is communicated with the center of the top of the gas guide cylinder 214, and the other end of the gas guide inlet pipe 223 movably penetrates through the top of the support cover 211 and is hermetically and rotatably connected to the inner pipe wall of the air inlet pipe 221 through a sealing bearing. The top of the gas guide inlet pipe 223 and the mesh cylinder 212 are rotatably connected through a ball bearing. The ventilation component 22 further includes a motor 224 connected to the air inlet pipe 221 through a support frame. The control switch and the motor 224 are control-connected through a wire. The control switch controls the switch of the motor 224. A rotating shaft 225 is connected to the output end of the motor 224. A fan blade 226 is sleeved on the wall of the rotating shaft 225. When the motor 224 works, it will drive the fan blade 226 to rotate through the rotating shaft 225, and transport the air in the gas guide cylinder 214 to the air inlet pipe 221. A planetary reducer 227 is connected to the other end of the rotating shaft 225, and the planetary reducer 227 is connected to the inner pipe wall of the air inlet pipe 221 through a support pin. And a transmission frame 228 is connected to the output end of the planetary reducer 227, and the transmission frame 228 is connected to the upper end pipe orifice of the gas guide inlet pipe 223. After deceleration by the planetary reducer 227, the transmission frame 228 drives the gas guide inlet pipe 223 to rotate at a speed lower than that of the rotating shaft 225.

[0061] During use, when the temperature difference between the inside and outside of the cabinet body 1 reaches the set value, the control switch starts the motor 224. The motor 224 drives the fan blade 226 to rotate through the rotating shaft 225 and starts to work. The air in the air guide cylinder 214 is sucked into the air inlet pipe 221 through the air guide inlet pipe 223. The air in the support cover 211 passes through the water absorption cotton 213 and the air inlet 215 from the outside of the mesh cylinder 212 and enters the air guide cylinder 214. At the same time, after being decelerated by the planetary reducer 227, the transmission frame 228 drives the air guide cylinder 214 to rotate in the mesh cylinder 212 through the air guide inlet pipe 223;

[0062] When the air guide cylinder 214 rotates, the air inlet 215 is constantly rotating, and the air inlet 215 continuously adjusts its contact position with the water absorption cotton 213, so that each position on the water absorption cotton 213 works alternately for dehumidification, improving the full utilization rate of the water absorption cotton 213.

[0063] Example 2, refer to Figures 6-9 , the dehumidification unit 2 further includes an air guide component 23 installed on the ventilation component 22. The air guide component 23 includes two air guide grooves opened on the back surface inside the cabinet body 1. One end of the air inlet pipe 221 and the air outlet pipe 222 are respectively connected to an air guide groove. It also includes a sealing thin plate 231 hinged on the back surface inside the cabinet body 1. The sealing thin plate 231 covers the back surface inside the cabinet body 1 and blocks the two air guide grooves. When the cabinet body 1 does not ventilate, the cabinet body 1 is separated from the air inlet pipe and the air outlet pipe 222. The air guide cloth 232 connected to the back surface inside the cabinet body 1, and the air guide cloth 232 movably penetrates through the sealing thin plate 231 and is provided with a limiting strip 233. The limiting strip 233 is movably placed outside the sealing thin plate 231. When the air in the air inlet pipe 221 moves outwards, it will exert a driving force on the sealing thin plate 231, causing the sealing thin plate 231 to deflect upwards around the hinge point and open. At this time, the air guide cloth 232 between the sealing thin plate 231 and the cabinet body 1 is straightened. Most of the air blown out from the air inlet pipe 221 moves downwards after being guided by the sealing thin plate 231, and a small part of the air moving upwards is blocked by the inclined air guide cloth 232 and then moves downwards and to both sides, so that most of the cold air entering the cabinet body 1 from the air inlet pipe 221 first reaches the bottom of the cabinet body 1, and the limiting frame 234 connected to the back surface inside the cabinet body 1, and the sealing thin plate 231 is movably arranged in the limiting frame 234. The movement position of the sealing thin plate 231 is limited by the limiting frame 234 to prevent it from opening too much and damaging the equipment inside the cabinet body 1. A plurality of mounting plates can be erected inside the cabinet body 1 in front of the openable area of the sealing thin plate 231 for mounting corresponding components.

[0064] During use, when the air in the intake pipe 221 enters the cabinet body 1, it will first exert a thrust on the sealing thin plate 231. After being subjected to the air thrust, the sealing thin plate 231 deflects and opens from the two air guiding grooves. When the sealing thin plate 231 deflects, a part of the air guiding cloth 232 between the sealing thin plate 231 and the cabinet body 1 is straightened, forming an inclined plane between the sealing thin plate 231 and the cabinet body 1. The air in the intake pipe 221 can smoothly enter the cabinet body 1. When the air enters the cabinet body 1, it is blocked by the inclined sealing thin plate 231 and moves obliquely downward and upward. The air moving upward is blocked by the air guiding cloth 232 and moves downward and to both sides, so that most of the cold air entering the cabinet body 1 through the intake pipe 221 first reaches the bottom of the cabinet body 1, thereby pushing the hot air in the cabinet body 1 to rise and accelerating the air convection cycle. The rising hot air is then discharged through the outlet pipe 222;

[0065] Guide the air entering the cabinet body 1 from the back of the cabinet body 1, and while not affecting the cable trench arrangement below the cabinet body 1, accelerate the air convection cycle in the cabinet body 1, thereby improving the cooling effect on the cabinet body 1.

[0066] The remaining structures are the same as those in Embodiment 1.

[0067] Embodiment 3, referring to Figures 10-13 , is the third embodiment of the present invention. The difference between this embodiment and the second embodiment is that a drying unit 3 is installed on the dehumidification unit 2. The drying unit 3 includes a partition plate 32 connected in the air guiding cylinder 214. The air guiding cylinder 214 is divided into an air inlet area and an air outlet area by the partition plate 32. The air inlet 215 and the air guiding inlet pipe 223 are both arranged in the air inlet area, and the air entering the air guiding cylinder 214 from the air inlet 215 will not enter the air outlet area; The drying unit 3 further includes a centrifugal water pressing component 31 installed in the alternating dehumidification component 21.

[0068] The centrifugal water-pressing assembly 31 includes an air outlet 311 formed on the barrel wall of the air guide cylinder 214. The air in the air outlet area is discharged outward through the air outlet 311. The air outlet 311 is arranged away from the air inlet 215. A support bar 312 connected inside the air guide cylinder 214, a pressure roller 313 movably arranged in the air outlet area, a pressure frame 314 mounted on the pressure roller 313. The pressure roller 313 is rotatably connected to the pressure frame 314, and a swing rod 315 symmetrically and obliquely passing through the support bar 312. A counterweight is connected to the tail of the swing rod 315. When the air guide cylinder 214 rotates, under the action of centrifugal force, the pressure roller 313 will press against the inner side of the water-absorbing cotton 213. When the water-absorbing cotton 213 absorbs water, the fibers will expand and form tiny pores. When the water-absorbing cotton 213 is squeezed, these pores will expand due to the squeezing force, causing gaps to appear between the originally dense fibers, enabling the fibers inside the water-absorbing cotton 213 to come into more contact with air and increasing the exposed area of the surface of the water-absorbing cotton 213. When the air guide cylinder 214 stops rotating, the counterweight applies a downward pulling force on the inclined swing rod 315, thereby driving the pressure frame 314 and the pressure roller 313 to reset, preventing the pressure roller 313 from pressing on one position of the water-absorbing cotton 213 for a long time and causing irreversible deformation of the water-absorbing cotton 213.

[0069] The centrifugal water-pressing assembly 31 further includes an air guide outlet pipe 316 communicated with the center of the bottom of the air guide cylinder 214. The air guide outlet pipe 316 penetrates through the center of the bottom of the mesh cylinder 212 and is rotatably connected through a ball bearing. One end of the air outlet pipe 222 away from the cabinet body 1 penetrates through the support cover 211 and extends to directly below the air guide outlet pipe 316, and the end of the air guide outlet pipe 316 away from the air guide cylinder 214 is hermetically and rotatably connected to the air outlet pipe 222 through a seal bearing. When the air guide cylinder 214 drives the air guide outlet pipe 316 to rotate, it will not affect the air outlet pipe 222. The hot air in the cabinet body 1 is discharged into the air outlet area of the air guide cylinder 214 through the air outlet pipe 222 and the air guide outlet pipe 316, and when it is discharged through the air outlet 311 on the rotating air guide cylinder 214, the hot air sprays out from the inner side to the outside of the water-absorbing cotton 213 to perform hot air drying on the water-absorbing cotton 213.

[0070] During use, when the air guide cylinder 214 rotates, the pressure roller 313 and the swing rod 315 in the air outlet area will be subject to an outward centrifugal force, which will directly throw the pressure roller 313 to the inner side of the water-absorbing cotton 213 and cause extrusion on the water-absorbing cotton 213 under the action of the centrifugal force, increasing the exposed surface area of the water-absorbing cotton 213. Moreover, as the air guide cylinder 214 rotates, the air guide cylinder 214 will drive the pressure roller 313 to continuously roll on the water-absorbing cotton 213 on the mesh cylinder 212 through the support bar 312, the swing rod 315 and the pressure frame 314, rolling the water-absorbing cotton 213 to increase the exposed surface area of the water-absorbing cotton 213. At this time, the hot air discharged from the air outlet pipe 222 enters the air outlet area through the air guide outlet pipe 316 and then is sprayed outwards through the air outlet 311. The sprayed hot air penetrates from the inner side to the outside of the water-absorbing cotton 213. When the heat contacts the moisture on the water-absorbing cotton 213, it accelerates the evaporation of the moisture. At the same time, the moisture evaporated into the air is blown away from the water-absorbing cotton 213;

[0071] While the water-absorbing cotton 213 is dehumidified alternately, the other side of the water-absorbing cotton 213 is dried, so that the water-absorbing cotton 213 can maintain an unsaturated water-absorbing state for a long time, improving the dehumidification effect of the water-absorbing cotton 213 on the air entering the cabinet body 1.

[0072] The remaining structure is the same as that of Embodiment 3.

[0073] Example 4, refer to Figures 14-18, which is the fourth embodiment of the present invention. The difference between this embodiment and the third embodiment is that: a protection unit 4 is also jointly installed on the dehumidification unit 2 and the drying unit 3; the protection unit 4 includes a protection component 41 installed in the alternating dehumidification component 21. The protection component 41 includes a suction filter cover 411 connected to the outer bottom of the support cover 211 to filter the air entering the support cover 211 and prevent dust from entering the support cover 211 and contacting the wet water-absorbing cotton 213, causing blockage and caking of the water-absorbing cotton 213. A baffle plate 412 is movably arranged on the inner bottom of the support cover 211. When the baffle plate 412 blocks the ventilation opening, the ventilation opening is closed, and ventilation slots 413 are opened on the side wall of the baffle plate 412. When the baffle plate 412 is lifted, the inside and outside of the support cover 211 are communicated through the ventilation slots 413. A sealing slide tube 414 is hermetically sleeved on the vertical outer pipe wall of the air outlet pipe 222. Two transmission rods 415 are connected between the baffle plate 412 and the sealing slide tube 414. Two sliding strip holes 416 are symmetrically opened on the vertical pipe wall of the air outlet pipe 222. A sliding strip block 417 movably penetrates through the sliding strip holes 416, and both ends of the sliding strip block 417 are connected to the inner pipe wall of the sealing slide tube 414. A transmission pin 418 is connected to the center of the upper end of the sliding strip block 417, and the other end of the transmission pin 418 extends into the air guide outlet pipe 316 and is provided with a windward cover 419. When the air moves in the air outlet pipe 222, it will push the windward cover 419 upward. When the windward cover 419 moves upward, the sealing slide tube 414 is driven to slide upward on the vertical outer pipe wall of the air outlet pipe 222 through the transmission pin 418 and the sliding strip block 417. While the sealing slide tube 414 slides upward, it drives the baffle plate 412 to lift and separate from the ventilation opening.

[0074] The protection unit 4 also includes an exhaust assembly 42 installed on the alternating dehumidification assembly 21; the exhaust assembly 42 includes an air guide ring 421 with a "C"-shaped cross section, and the air guide ring 421 is connected to the inner cover wall of the support cover 211, and also includes a support ring 422 with an "I"-shaped cross section that is rotatably connected to the air guide ring 421. The rotating connection between the air guide ring 421 and the support ring 422 is coated with lubricating grease, which seals and improves the lubrication effect between the two. The support ring 422 is sleeved on the mesh tube 212, and an air outlet hood 423 is movably arranged on the outer wall of the mesh tube 212. The air outlet hood 423 is arranged at the position corresponding to the air outlet 311, and a transmission column 424 is commonly connected between the air outlet hood 423 and the air guide outlet pipe 316. The air guide tube 2 When the air outlet pipe 316 is driven to rotate, the air outlet pipe 316 drives the air outlet cover 423 to rotate synchronously through the transmission column 424, so that the air outlet cover 423 is always facing the air outlet 311, and passes through the air guide pipe 425 connected between the support ring 422 and the air outlet cover 423, and passes through the exhaust pipe 426 arranged between the support cover 211 and the air guide ring 421, and the pipe mouth of the exhaust pipe 426 is hinged with a cover plate 427, the cover plate 427 is a thin plate, light in weight, and easy to blow open, and the cover plate 427 is pushed open when the exhaust pipe 426 is exhausted. When there is no air in the exhaust pipe 426 to be discharged to the outside, the cover plate 427 is closed at the pipe mouth of the exhaust pipe 426 to seal the exhaust pipe 426, and the humid air from the outside cannot enter the exhaust pipe 426.

[0075] During use, when air is discharged from the air outlet pipe 222 and the air guide pipe 316, the gas will push the windward cover 419 to rise. When the windward cover 419 moves upward, the sealing slide pipe 414 is driven to slide on the outer tube wall of the air outlet pipe 222 through the transmission pin 418 and the sliding bar 417, and then the baffle plate 412 is pulled upward by the transmission rod 415. At this time, the ventilation slot 413 is completely exposed, and the cold air from the outside can be smoothly replenished into the support cover 211 when passing through the air suction filter cover 411;

[0076] When the air guide cylinder 214 and the air guide outlet pipe 316 rotate, the air guide outlet pipe 316 drives the air outlet cover 423 to rotate synchronously on the outer cylinder wall of the net cylinder 212 through the transmission column 424. When the air outlet cover 423 rotates, the support ring 422 is driven to rotate synchronously in the air guide ring 421 through the air guide pipe 425. The humid hot air sprayed from the air outlet 311 passes through the absorbent cotton 213 and enters the air outlet cover 423, and then is transported to the area between the air guide ring 421 and the support ring 422 through the air guide pipe 425. The humid hot air entering the area is discharged to the outside through the exhaust pipe 426. The humid hot air pushes the cover plate 427 open and is smoothly discharged to the outside, and rises under the push of the surrounding cold air, away from the air intake filter cover 411 area, to prevent the humid hot air from being re-inhaled into the support cover 211;

[0077] When the temperatures inside and outside the cabinet body 1 tend to be the same, the motor 224 stops working, and there is no longer air flow in the air outlet pipe 222. Under the action of gravity, the protection component 41 automatically resets, and the baffle plate 412 blocks the ventilation opening again. There is no air movement in the exhaust component 42 either, and the cover plate 427 automatically falls back to cover the pipe orifice of the exhaust pipe 426. At this time, the inside of the support cover 211 is isolated from the outside world, preventing the outside air from contacting the water-absorbing cotton 213.

[0078] The cover plate 427 can be replaced with a dust-proof net, and the dust-proof net is installed in the exhaust pipe 426.

[0079] The remaining structures are the same as those in Embodiment 3.

[0080] Embodiment 5, referring to Figures 1-18 , is the fifth embodiment of the present invention, which provides: A method for using an anti-condensation alternating dehumidification ring main switchgear, including the following steps.

[0081] S1: When the control system detects that the temperature difference between the inside and outside of the cabinet body 1 is about to reach the condensation point, the control system starts the motor 224. While the motor 224 drives the fan blade 226 to work through the rotating shaft 225, after deceleration by the planetary reducer 227, it drives the air guide cylinder 214 to rotate synchronously in the mesh cylinder 212 through the air guide inlet pipe 223.

[0082] S2: The air in the support cover 211 enters the intake pipe 221 through the air inlet 215 on the air guide cylinder 214. When the air passes through the water-absorbing cotton 213, the moisture contained in the air is removed, and at the same time, in cooperation with the rotating air guide cylinder 214, the water-absorbing cotton 213 works alternately at various positions.

[0083] S3: When the air is delivered into the cabinet body 1 through the intake pipe 221, it pushes the sealing thin plate 231 to open from the inner back surface of the cabinet body 1, and the air in the air pipe 221 can smoothly enter the cabinet body 1. When the air enters the cabinet body 1, it is blocked by the inclined sealing thin plate 231 and moves obliquely downward and upward. The air moving upward is blocked by the air guide cloth 232 and moves downward and to both sides, so that most of the cold air entering the cabinet body 1 from the intake pipe 221 first reaches the bottom of the cabinet body 1, thereby pushing the hot air in the cabinet body 1 to rise and accelerating the air convection cycle. The rising hot air is then discharged through the air outlet pipe 222.

[0084] S4: The hot air passes through the air outlet pipe 222 and the air guiding outlet pipe 316 and then enters the air outlet area in the air guiding cylinder 214. The gas will push the windward cover 419 to rise. When the windward cover 419 moves upward, it drives the sealing slide pipe 414 to slide on the outer wall of the air outlet pipe 222 through the transmission pin 418 and the sliding bar block 417, and then pulls the blocking disc 412 to move upward through the transmission rod 415. At this time, the ventilation slot 413 is completely exposed, and the outside cold air can be smoothly supplemented into the support cover 211 when passing through the air suction filter cover 411;

[0085] S5: When the air guiding cylinder 214 rotates, the pressure roller 313 and the swinging rod 315 in the air outlet area will be subject to an outward centrifugal force, and the pressure roller 313 will be directly thrown to the inner side of the water absorption cotton 213 and squeeze the water absorption cotton 213 under the action of the centrifugal force, so that the water absorption cotton 213 increases the surface exposure area. And as the air guiding cylinder 214 rotates, the air guiding cylinder 214 will drive the pressure roller 313 to continuously roll the water absorption cotton 213 on the mesh cylinder 212 through the support bar 312, the swinging rod 315 and the pressure frame 314, roll the water absorption cotton 213, and increase the surface exposure area of the water absorption cotton 213. At this time, the hot air discharged from the air outlet pipe 222 enters the air outlet area through the air guiding outlet pipe 316 and is then sprayed outwards through the air outlet 311. The sprayed hot air penetrates from the inner side to the outer side of the water absorption cotton 213. When the heat contacts the moisture on the water absorption cotton 213, it accelerates the evaporation of the moisture. At the same time, the moisture evaporated into the air is blown away from the water absorption cotton 213. While the water absorption cotton 213 is alternately dehumidified, the other side position of the water absorption cotton 213 is dried, so that the water absorption cotton 213 can maintain an unsaturated water absorption state for a long time, improving the dehumidification effect of the water absorption cotton 213 on the air entering the cabinet body 1;

[0086] S6: The humid hot air sprayed out from the air outlet 311 of the air guiding cylinder 214 enters between the air guiding ring 421 and the support ring 422 through the air outlet cover 423 and the air guiding pipe 425, and then pushes open the cover plate 427 on the exhaust pipe 426 and is discharged;

[0087] S7: When the control system detects that the temperatures inside and outside the cabinet body 1 tend to be the same, the motor 224 is turned off, and there is no air flow in the air outlet pipe 222. Under the action of gravity, the protection component 41 automatically resets, the blocking disc 412 blocks the ventilation opening again, and there is no air movement in the exhaust component 42. The cover plate 427 automatically falls back to cover the pipe orifice of the exhaust pipe 426. At this time, the inside of the support cover 211 is isolated from the outside, preventing the outside air from contacting the water absorption cotton 213.

Claims

1. An anti-condensation alternating dehumidification ring main switch cabinet, including a cabinet body, and a control system is arranged inside the cabinet body. It is characterized in that: A dehumidification unit is arranged on the cabinet body, and the control system is connected to the dehumidification unit in a controlled manner; The dehumidification unit includes an alternating dehumidification component arranged on the back of the cabinet body, and a ventilation component arranged on the alternating dehumidification component; The alternating dehumidification component includes a support cover arranged on the outer back of the cabinet body, and the support cover is a cover body with a ventilation opening at the bottom, a net cylinder arranged in the support cover, and the cross-section of the net cylinder is arranged in a dovetail shape, a water-absorbing cotton arranged on the inner cylinder wall of the net cylinder, a gas guide cylinder with a dovetail-shaped inner cross-section arranged in the water-absorbing cotton, and an air inlet arranged on the cylinder wall of the gas guide cylinder; The ventilation component includes an air inlet pipe and an air outlet pipe arranged on the back of the cabinet body, a gas guide inlet pipe arranged at the center of the top of the gas guide cylinder, and the other end of the gas guide inlet pipe movably penetrates through the top of the support cover and is hermetically and rotationally connected to the inner pipe wall of the air inlet pipe. The ventilation component also includes a motor arranged in the air inlet pipe, a rotating shaft arranged at the output end of the motor, a fan blade arranged on the shaft wall of the rotating shaft, a planetary reducer arranged at the other end of the rotating shaft, and a transmission frame arranged at the output end of the planetary reducer, and the transmission frame is arranged on the gas guide inlet pipe; The dehumidification unit also includes a wind guiding component arranged on the ventilation component. The wind guiding component includes two gas guide grooves arranged on the inner back of the cabinet body. One end of the air inlet pipe and the air outlet pipe are respectively communicated with one gas guide groove. It also includes a sealing thin plate arranged on the inner back of the cabinet body, a wind guiding cloth arranged on the inner back of the cabinet body, and the wind guiding cloth movably penetrates through the sealing thin plate and is provided with a limiting strip, and the limiting strip is arranged outside the sealing thin plate, and a limiting frame arranged on the inner back of the cabinet body, and the sealing thin plate is arranged in the limiting frame.

2. The anti-condensation alternating dehumidification ring main switch cabinet according to claim 1, It is characterized in that: A drying unit is arranged on the dehumidification unit. The drying unit includes a partition plate arranged in the gas guide cylinder. The gas guide cylinder is divided into an air inlet area and an air outlet area by the partition plate. The air inlet and the gas guide inlet pipe are both arranged in the air inlet area; The drying unit also includes a centrifugal water pressing component arranged in the alternating dehumidification component; The centrifugal water pressing component includes an air outlet arranged on the cylinder wall of the gas guide cylinder, the air outlet is arranged far away from the air inlet, a support bar arranged in the gas guide cylinder, a pressing roller arranged in the air outlet area, a pressing frame arranged on the pressing roller, and swing rods symmetrically and obliquely movably arranged on the support bar, and the swing rods movably penetrate through the support bar.

3. The anti-condensation alternating dehumidification ring main switch cabinet according to claim 2, It is characterized in that: The centrifugal water pressing component also includes a gas guide outlet pipe arranged at the center of the bottom of the gas guide cylinder. One end of the air outlet pipe far away from the cabinet body penetrates through the support cover and extends to directly below the gas guide outlet pipe, and one end of the gas guide outlet pipe far away from the gas guide cylinder is hermetically and rotationally connected to the air outlet pipe.

4. The anti-condensation alternating dehumidification ring main switch cabinet according to claim 3, It is characterized in that: A protection unit is also jointly arranged on the dehumidification unit and the drying unit; The protection unit includes a protection component arranged in the alternating dehumidification component, and an exhaust component arranged on the alternating dehumidification component; The protection component includes an air suction and filtration cover arranged at the outer bottom of the support cover, a baffle plate arranged at the inner bottom of the support cover, and an air vent notch is arranged on the side wall of the baffle plate, a sealing sliding tube arranged on the vertical outer tube wall of the air outlet pipe, a transmission rod arranged between the baffle plate and the sealing sliding tube, a sliding strip hole arranged on the vertical tube wall of the air outlet pipe, a sliding strip block movably penetrating through the sliding strip hole, and both ends of the sliding strip block are connected to the inner tube wall of the sealing sliding tube, a transmission pin arranged at the center of the upper end of the sliding strip block, and the other end of the transmission pin extends into the air guiding outlet pipe and is provided with a windward cover.

5. The anti-condensation alternating dehumidification ring main switch cabinet according to claim 4, characterized in that: The exhaust component includes a gas guiding ring with a "C"-shaped cross-section, and the gas guiding ring is arranged on the inner cover wall of the support cover. It also includes a support ring with an "I"-shaped cross-section arranged inside the gas guiding ring, and the support ring is sleeved on the mesh cylinder. An air outlet cover is arranged on the outer cylinder wall of the mesh cylinder, and the air outlet cover is arranged corresponding to the position of the air outlet. A transmission column is commonly connected between the air outlet cover and the air guiding outlet pipe. An air guide pipe is arranged through the support ring and the air outlet cover, and an exhaust pipe is arranged through the support cover and the gas guiding ring.

6. A usage method of an anti-condensation alternating dehumidification ring main switch cabinet, adopting the anti-condensation alternating dehumidification ring main switch cabinet according to claim 5, characterized in that: It includes the following steps, When the control system detects that the temperature difference inside and outside the cabinet is about to reach the condensation point, the driving fan blade and the air guiding cylinder rotate. The air outside the mesh cylinder is dehumidified by the water-absorbing cotton and then enters the air inlet pipe through the air inlet; When the air is transported into the cabinet through the air inlet pipe, it pushes the sealing thin plate to open from the inner back surface of the cabinet. The sealing thin plate guides the air transported into the cabinet by the air inlet pipe downward, so that the air first reaches the lower part inside the cabinet and then rises; The hot air enters the air outlet area inside the air guiding cylinder through the air outlet pipe and the air guiding outlet pipe. The pressing roller squeezes the water-absorbing cotton under the action of centrifugal force, increasing the exposed area of the surface of the water-absorbing cotton. At the same time, the hot air entering the air outlet area passes through the water-absorbing cotton from the inside to the outside, drying the water-absorbing cotton.

7. The usage method of the anti-condensation alternating dehumidification ring main switch cabinet according to claim 6, characterized in that: The air moves in the air outlet pipe and the air guiding outlet pipe, driving the baffle plate to separate from the inner bottom of the support cover. The outside air is filtered by the air suction and filtration cover and then supplemented into the support cover; The air discharged from the air outlet of the air guiding cylinder enters between the gas guiding ring and the support ring through the air outlet cover and the air guide pipe, and then pushes open the cover plate on the exhaust pipe and is discharged; When the control system detects that the temperature inside and outside the cabinet tends to be consistent, the motor is turned off, and the sealing thin plate, the baffle plate and the cover plate all automatically reset, so that both the cabinet and the support cover are in an independent environment, not only avoiding the residual moisture on the water-absorbing cotton from entering the cabinet, but also preventing the moisture in the outside air from coming into contact with the water-absorbing cotton.

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