CN116526315A - Dehumidification structure and dehumidification method of high-low voltage switch cabinet - Google Patents
Dehumidification structure and dehumidification method of high-low voltage switch cabinet Download PDFInfo
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- CN116526315A CN116526315A CN202310338723.1A CN202310338723A CN116526315A CN 116526315 A CN116526315 A CN 116526315A CN 202310338723 A CN202310338723 A CN 202310338723A CN 116526315 A CN116526315 A CN 116526315A
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- frame
- switch cabinet
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000007791 dehumidification Methods 0.000 title claims description 27
- 239000002274 desiccant Substances 0.000 claims abstract description 31
- 238000010521 absorption reaction Methods 0.000 claims abstract description 6
- 239000000428 dust Substances 0.000 claims description 35
- 238000010438 heat treatment Methods 0.000 claims description 26
- 238000004804 winding Methods 0.000 claims description 20
- 229910000831 Steel Inorganic materials 0.000 claims description 13
- 239000010959 steel Substances 0.000 claims description 13
- 238000006073 displacement reaction Methods 0.000 claims description 11
- 238000004140 cleaning Methods 0.000 claims description 9
- 238000005192 partition Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 5
- 230000001681 protective effect Effects 0.000 claims description 5
- 238000005452 bending Methods 0.000 claims description 2
- 239000011148 porous material Substances 0.000 claims 1
- 238000001035 drying Methods 0.000 abstract description 15
- 238000009423 ventilation Methods 0.000 abstract description 9
- 238000001599 direct drying Methods 0.000 abstract description 3
- 238000007790 scraping Methods 0.000 description 7
- 238000010030 laminating Methods 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 238000007664 blowing Methods 0.000 description 3
- 238000009826 distribution Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000007602 hot air drying Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/001—Drying-air generating units, e.g. movable, independent of drying enclosure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/68—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements
- B01D46/681—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements by scrapers, brushes or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/28—Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/56—Cooling; Ventilation
- H02B1/565—Cooling; Ventilation for cabinets
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/14—Extreme weather resilient electric power supply systems, e.g. strengthening power lines or underground power cables
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention relates to the technical field of high-low voltage switch cabinets, and particularly discloses a dehumidifying structure and a dehumidifying method of the high-low voltage switch cabinet. According to the invention, the net bag and the drying agent are slowly lifted in the cabinet body to realize multi-position moisture absorption operation, replace the existing fixed drying and dehumidifying structure, and uniformly blow hot air into the switch cabinet, so that electric appliances in the switch cabinet can be contacted with the hot air, the dehumidifying operation of simultaneously carrying out hot air ventilation and direct drying is realized, and the drying agent can be repeatedly utilized.
Description
Technical Field
The invention relates to the technical field of high-low voltage switch cabinets, in particular to a dehumidifying structure and a dehumidifying method of a high-low voltage switch cabinet.
Background
The high-low voltage switch cabinet is the distribution equipment for distributing, controlling and measuring electric energy and connecting cables in the power supply system, and a common power supply office and a power substation are all high-voltage switch cabinets, and then led out to the low-voltage switch cabinet through the low-voltage side of the transformer, and the low-voltage switch cabinet is further led to a distribution board, a control box, a switch box and the like for each power. The high-voltage switch cabinet has the advantages of compact structure, small occupied area, convenient operation and the like, and is widely applied to systems of 35kV and below. The switch cabinet is generally connected by adopting a closed bus bridge, has high sealing performance, compact structure and smaller internal space, is not smooth in relative closed air circulation, and often enters moisture due to poor sealing, underground moisture regain and the like; when the air humidity is too high, the condensation phenomenon is easy to occur in the cabinet, the insulating part is caused to be wetted, the performance and the service life of components are reduced, the metal corrosion is accelerated, the contact surface is oxidized, the contact resistance is increased, the insulating strength of high-voltage electrical equipment is seriously reduced, and then accidents are caused. Therefore, dampproofing dehumidification has become the important factor of guaranteeing the safe and stable operation of cubical switchboard. The dehumidification treatment method adopted by the switch cabinet at present comprises the following steps: forced ventilation, electric heating, direct drying, dehumidifier, etc.
Through retrieval, the electric power switch cabinet dehumidifying device disclosed by the patent publication No. CN107508153A has the advantages that the structure is reasonable and simple, the production cost is low, the installation is convenient, the inside moisture can be effectively removed, when the electric power switch cabinet dehumidifying device is used, the drying agent removes the inside moisture, the heater heats the air, the circulating fan circulates the inside air, the hot air removes the inside moisture, when the inside temperature is too high after the moisture is removed, the radiating pipe and the radiating fin radiate heat, and the heat exchange pipe and the heat exchanger exchange heat, so that the air moisture in the electric power cabinet can be completely removed, the electric power equipment can be well cooled, the power supply accident caused by the fact that the temperature of the electric power equipment is too high and condensation is avoided, and the safe and stable operation of the electric power equipment in the electric power cabinet is ensured. In the process of realizing the scheme, the following problems in the prior art are found to be not solved well: the switch cabinet in the prior art often adopts a dehumidification structure and a dehumidification method with matched heating and drying, namely, hot air is introduced into the switch cabinet and a drying agent is filled for dehumidification treatment, but the existing switch cabinet ventilation structure and the existing switch cabinet ventilation structure often adopt fixed structures, hot air cannot be uniformly blown into the switch cabinet when hot air is introduced into the switch cabinet, so that some electric appliances cannot contact the hot air, and secondly, when moisture is absorbed through the drying agent, moisture away from the drying agent is absorbed slowly or not absorbed, so that the problem of poor dehumidification effect of the whole switch cabinet is caused, and therefore, a high-low voltage switch cabinet dehumidification structure and a dehumidification method thereof are needed to solve the problem.
Disclosure of Invention
Aiming at the problems in the related art, the invention provides a dehumidifying structure of a high-low voltage switch cabinet and a dehumidifying method thereof, so as to overcome the technical problems in the prior art.
The technical scheme of the invention is realized as follows:
the utility model provides a high-low voltage switch cabinet dehumidification structure, includes the cabinet body, the same L type side frame of one end and bottom fixed mounting of the cabinet body, and four equidistance are the air intake that annular distributes has been seted up at the one end top of L type side frame, are provided with air inlet subassembly on the air intake, a plurality of air exits have been seted up at the other end top of the cabinet body, and one side fixed mounting of air exit has the protection frame, one side inner wall that L type side frame is close to the air intake is provided with heating element, the movable groove has been seted up to the bottom of the cabinet body, and the inner wall activity of movable groove is provided with U type movable seat, and the bottom of U type movable seat is provided with displacement subassembly, is provided with blast assembly on the U type movable seat, the internal activity of the cabinet body is provided with U type movable frame, and the constant head tank has all been seted up at the both ends of U type movable frame, and the equal joint of inner wall of constant head tank has L type location cardboard, the one end of L type location cardboard all is fixed with the string bag, the inside of string bag is filled with the drier, and the inner wall top of string bag is fixed with the handle bar, the top intermediate position of U type movable frame is provided with lifting assembly.
Further, the inner wall fixed mounting that L type side frame is close to corner has L type mounting panel, and the top one end laminating of L type mounting panel is on the bottom one end of the cabinet body, is fixed with the baffle between the inner wall of top one side of L type mounting panel and L type side frame, heating element is including the heating coil on fixed mounting is on outer wall and the baffle of L type side frame one side, and heating coil is connected with the temperature controller.
Further, the displacement subassembly is including rotating the threaded rod of connection between L type mounting panel one side and L type side frame one end, and the screw hole has been seted up to the bottom intermediate position of U type movable seat, the inner wall of screw hole and the outer wall threaded connection of threaded rod, the one end of threaded rod is fixed with the pivot that passes L type mounting panel, and the one end of pivot is fixed with the first connecting axle that extends L type side frame, the top one side fixed mounting of L type mounting panel has positive reverse motor, and all is fixed with the bevel gear that meshes between the output shaft of positive reverse motor and the outer wall one side of first connecting axle, the guiding hole has all been seted up to the bottom both sides of U type movable seat, and is fixed with two guide bars that pass the guiding hole inner wall between one side of L type mounting panel and the one end of L type side frame, the both sides of the threaded rod that the guiding bar distributes, the equidistance distribution's that the cooling hole has been seted up to the one end bottom that L type side frame is close to positive reverse motor.
Further, the blast assembly comprises a first fan base fixedly arranged at the top of the U-shaped movable base, a blast blower is fixedly arranged on the first fan base, an air outlet pipe is fixedly arranged at the bottom of the blast blower, an air guide pipe is fixedly arranged at the position, close to the corner, of the L-shaped mounting plate, a corrugated pipe is fixedly arranged between one end of the air guide pipe and one end of the air outlet pipe, an air collecting hopper is fixedly arranged at the other end of the air guide pipe, and the air collecting hopper is positioned below the second fan base.
Further, the lifting assembly comprises wiring holes formed in one side of the top of the L-shaped mounting plate and one end of the cabinet body, laying wheels are arranged on one side of the middle position of the inner wall of the top of the cabinet body and one side of the inner wall of the top of the L-shaped side frame, steel wire ropes penetrating through the two wiring holes are laid on the laying wheels, one end of each steel wire rope is fixedly mounted at the middle position of the top of the U-shaped movable frame, a winding and unwinding reel is fixed at the other end of the outer wall of the first connecting shaft, and the other end of each steel wire rope is sleeved on the winding and unwinding reel.
Further, the mounting mouth has been seted up to the opposite side that L type side frame is close to heating coil, and the inner wall laminating of mounting mouth has the closing plate, and one side top and the bottom of mounting mouth all rotate through fastening round pin axle and be connected with the locking plate of laminating in closing plate one side, the opposite side of closing plate is fixed with the dust removal frame that the equidistance distributes, and the outer wall of dust removal frame is laminated mutually with one side of the inner wall of L type side frame and baffle, and one side of baffle is fixed with the supporting shoe of equidistance laminating in dust removal frame bottom, the position of dust removal frame is crisscross with heating coil's curved portion, and the inner wall bottom all is fixed with the filter screen that the equidistance distributes around the dust removal frame, and the aperture top-down of filter screen reduces gradually.
Further, the air inlet subassembly is including the dust screen of equal fixed mounting at the air intake inner wall, and the air intake is fan-shaped, and one side fixed mounting in the air intake is close to L type side frame has the second fan seat, and fixed mounting has the air exhauster on the second fan seat, the through-hole has been seted up at the one end top of L type side frame, and the through-hole is located the positive central point position in the region that four air intakes constitute, and the inner wall rotation of through-hole is connected with the second connecting axle, and the one end of second connecting axle all is fixed with the drive wheel with the one end of first connecting axle, and the outer wall transmission of two drive wheels is connected with the drive belt, outer wall one side of second connecting axle is fixed with the clearance scraper blade, and the laminating of clearance scraper blade is in one side of dust screen.
Further, the mounting groove has been seted up to one side of protection frame, and the inner wall fixed mounting of mounting groove has humidity transducer, air exhauster, heating coil, positive and negative rotation motor and air-blower all are connected with the switch through the wire, and the switch is connected with the treater through the wire, and the signal input part of treater and humidity transducer's signal output part electrical signal connection.
Further, the inner wall fixed mounting of the cabinet body has the equipment frame, and the guide way has all been seted up at one side both ends of equipment frame, is fixed with two guide blocks of laminating at the guide way inner wall on the U type movable frame, one side of the cabinet body is provided with the cabinet door, the bottom fixed mounting of L type side frame has waterproof underframe, and the equal fixed mounting in the bottom four corners of waterproof underframe has the universal wheel.
The dehumidification method of the high-low voltage switch cabinet comprises the following steps of:
s1, presetting a threshold value of a humidity sensor, measuring the humidity inside the switch cabinet through a processor and the humidity sensor, and enabling an electric appliance inside the switch cabinet to not work when the humidity is within the threshold value, wherein the humidity is only required to be adsorbed and dehumidified through a desiccant in a net bag;
s2, when the humidity in the switch cabinet exceeds within a threshold value%, controlling the operation of a forward and reverse rotation motor through a processor, driving a bevel gear, a first connecting shaft and a winding and unwinding reel to rotate under the operation of the forward and reverse rotation motor, driving the winding and unwinding reel to perform reciprocating winding and unwinding operation on a steel wire rope by utilizing reciprocating forward and reverse rotation of the forward and reverse rotation motor, and adjusting the heights of a U-shaped movable frame, a net bag and a drying agent, so that the net bag and the drying agent perform slow lifting operation in the cabinet body, thereby realizing multi-position moisture absorption operation when the drying agent absorbs the humidity, and stopping the operation of the forward and reverse rotation motor when the humidity detected by a humidity sensor is within the threshold value;
s3, when the humidity inside the switch cabinet exceeds more than a threshold value%, the exhaust fan, the temperature controller, the forward and reverse rotating motor and the blower are controlled by the processor to work simultaneously, the temperature controller and the heating coil are utilized to heat the air flow in the L-shaped side frame drawn by the exhaust fan in the air inlet assembly, heated hot air is blown into the switch cabinet under the action of the blower in the air blowing assembly, the hot air is introduced to dehumidify, the forward and reverse rotating motor in the displacement assembly can be matched to drive the threaded rod to rotate forward and reverse, the U-shaped movable seat and the blower are driven to move back and forth, the hot air is blown into the switch cabinet uniformly, the sufficient dehumidification function is realized, and the operation of the exhaust fan, the temperature controller, the forward and reverse rotating motor and the blower is stopped when the humidity detected by the humidity sensor is in the threshold value.
The invention has the beneficial effects that:
according to the dehumidifying structure and the dehumidifying method of the high-low voltage switch cabinet, the bevel gear, the first connecting shaft and the winding and unwinding reel are driven to rotate by the forward and reverse rotation motor, the winding and unwinding reel is driven to perform reciprocating winding and unwinding operation on the steel wire rope by the reciprocating forward and reverse rotation of the forward and reverse rotation motor, so that the heights of the U-shaped movable frame, the net bag and the drying agent are adjusted, the net bag and the drying agent slowly lift in the cabinet body, multi-position moisture absorption operation is realized when moisture is absorbed by the drying agent, the existing fixed drying and dehumidifying structure is replaced, moisture far away from the drying agent can be absorbed, and the drying and dehumidifying effect of the whole switch cabinet is improved.
According to the dehumidifying structure of the high-low voltage switch cabinet and the dehumidifying method thereof provided by the invention, when the humidity in the switch cabinet is higher, the temperature controller and the heating coil are utilized to heat the air flow pumped into the L-shaped side frame by the exhaust fan in the air inlet assembly, the heated hot air is blown into the switch cabinet under the action of the blower in the air blowing assembly to dehumidify the hot air, and the threaded rod can be driven to rotate in the forward and reverse directions by the forward and reverse rotating motor in the displacement assembly to drive the U-shaped movable seat and the blower to move back and forth, so that the hot air can be uniformly blown into the switch cabinet, electric appliances in the switch cabinet can be contacted with the hot air to realize the dehumidifying operation of the hot air and direct drying, and on the other hand, the drying agent can be dried by the hot air to remove the moisture contained in the drying agent, and the drying agent can be reused for multiple times.
According to the dehumidifying structure of the high-low voltage switch cabinet and the dehumidifying method thereof, provided by the invention, in the process of dehumidifying by hot air, the dust screen is utilized to perform preliminary dust removing operation, and when the first transmission shaft rotates, the transmission belt and the cleaning scraping plate are driven to rotate, dust attached to the surface of the dust screen is removed by the cleaning scraping plate, the ventilation efficiency is improved, and the dust is fully dedusted by a plurality of dust removing frames and filter screens with different filter apertures, so that the problem of damage to devices caused by the dust entering the inside of the switch cabinet is avoided, and the air flow entering the cabinet body can be fully heated under the level obstruction of the dust removing frames and the filter screens, so that the subsequent hot air ventilation dehumidifying effect is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of the overall structure of the present invention.
Fig. 2 is a schematic view of the structure of the protection frame and the humidity sensor according to the present invention.
Fig. 3 is an overall cross-sectional view of the present invention.
Fig. 4 is a front view of the present invention.
Fig. 5 is an enlarged schematic view of the structure of fig. 4 a according to the present invention.
Fig. 6 is a schematic view of the structure of the U-shaped movable frame and the mounting opening of the present invention.
Fig. 7 is a schematic view of the structure of the equipment rack and the guide slot of the present invention.
FIG. 8 is a schematic view of the construction of the laying wheel and L-shaped locating clamping plate of the present invention.
FIG. 9 is a schematic view of a seal plate and screen according to the present invention.
In the figure:
1. a cabinet body; 2. a dust screen; 3. a transmission belt; 4. an L-shaped side frame; 5. a heat radiation port; 6. a waterproof bottom frame; 7. a bellows; 8. a first fan bed; 9. an equipment rack; 10. a cabinet door; 11. an air outlet; 12. a net bag; 13. a protective frame; 14. a humidity sensor; 15. an exhaust fan; 16. a dust removal frame; 17. a heating coil; 18. a partition plate; 19. a wind collecting hopper; 20. a forward and reverse rotation motor; 21. an L-shaped mounting plate; 22. a movable groove; 23. a U-shaped movable seat; 24. a threaded rod; 25. a wire rope; 26. a rotating shaft; 27. bevel gears; 28. winding and unwinding the reel; 29. a guide rod; 30. an air guide pipe; 31. a U-shaped movable frame; 32. a positioning groove; 33. a mounting port; 34. a locking plate; 35. a blower; 36. a guide groove; 37. paving wheels; 38. an L-shaped positioning clamping plate; 39. a handle bar; 40. cleaning a scraping plate; 41. a sealing plate; 42. a filter screen; 43. and a supporting block.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the invention, fall within the scope of protection of the invention.
Referring to fig. 1-9, a dehumidifying structure of a high-low voltage switch cabinet, which comprises a cabinet body 1, one end and the bottom of the cabinet body 1 are fixedly provided with an identical L-shaped side frame 4, four equidistance air inlets which are annularly distributed are formed in the top of one end of the L-shaped side frame 4, an air inlet component is arranged on the air inlet, a plurality of air outlets 11 are formed in the top of the other end of the cabinet body 1, a protective frame 13 is fixedly arranged on one side of the air outlets 11, a heating component is arranged on the inner wall of one side, close to the air inlet, of the L-shaped side frame 4, a movable groove 22 is formed in the bottom of the cabinet body 1, a U-shaped movable seat 23 is movably arranged on the inner wall of the movable groove 22, a displacement component is arranged on the bottom of the U-shaped movable seat 23, a blast component is arranged on the U-shaped movable seat 23, positioning grooves 32 are formed in two ends of the U-shaped movable frame 31, L-shaped positioning clamping boards 38 are respectively clamped on the inner walls of the positioning grooves 32, a net 12 is respectively fixed on one end of the L-shaped positioning boards 38, a drying agent is respectively filled in the inner wall of the net 12, a drying agent is respectively arranged on the inner wall of the net 12, a drying rod 39 is respectively arranged on the inner wall of the net 12, and the inner wall of the drying bag is also arranged on the inner wall of the drying bag, and the inner wall of the drying bag is far away from the inner wall of the drying bag, and the drying rod is also arranged on the inner wall, and the inner wall of the drying rod is directly, and the drying structure is capable of a fixed, and the drying structure is capable of being directly and far away from the drying structure, and the drying structure is simultaneously can be realized.
In the invention, an L-shaped mounting plate 21 is fixedly arranged on the inner wall of an L-shaped side frame 4 near a corner, one end of the top of the L-shaped mounting plate 21 is attached to one end of the bottom of a cabinet body 1, a partition plate 18 is fixed between one side of the top of the L-shaped mounting plate 21 and the inner wall of the L-shaped side frame 4, a heating assembly comprises a heating coil 17 fixedly arranged on the outer wall of one side of the L-shaped side frame 4 and the partition plate 18, and the heating coil 17 is connected with a temperature controller.
In the invention, the displacement assembly comprises a threaded rod 24 rotatably connected between one side of an L-shaped mounting plate 21 and one end of an L-shaped side frame 4, a threaded hole is formed in the middle position of the bottom of a U-shaped movable seat 23, the inner wall of the threaded hole is in threaded connection with the outer wall of the threaded rod 24, one end of the threaded rod 24 is fixedly provided with a rotating shaft 26 penetrating through the L-shaped mounting plate 21, one end of the rotating shaft 26 is fixedly provided with a first connecting shaft extending out of the L-shaped side frame 4, one side of the top of the L-shaped mounting plate 21 is fixedly provided with a forward and reverse motor 20, a bevel gear 27 meshed with the output shaft of the forward and reverse motor 20 and one side of the outer wall of the first connecting shaft are fixedly arranged between the two sides of the bottom of the U-shaped movable seat 23, two guide rods 29 penetrating through the inner walls of the guide holes are fixedly arranged between one side of the L-shaped mounting plate 21 and one end of the L-shaped side frame 4, two sides of the threaded rod 24 are distributed by the guide rods 29, the bottom of one end of the L-shaped side frame 4 near the L-shaped side frame 20 is provided with heat dissipation ports 5 distributed at equal distances, and the forward and reverse motor 20 can drive the assembly and the lifting assembly to work simultaneously by utilizing the forward and reverse motor 20 in the displacement assembly.
According to the invention, the air blast assembly comprises a first air blower seat 8 fixedly arranged at the top of a U-shaped movable seat 23, an air blower 35 is fixedly arranged on the first air blower seat 8, an air outlet pipe is fixedly arranged at the bottom of the air blower 35, an air guide pipe 30 is fixedly arranged at the position, close to the corner, of an L-shaped mounting plate 21, a corrugated pipe 7 is fixedly arranged between one end of the air guide pipe 30 and one end of the air outlet pipe, an air collecting hopper 19 is fixedly arranged at the other end of the air guide pipe 30, the air collecting hopper 19 is positioned below a second air blower seat, and hot air in an L-shaped side frame 4 can be blown into the cabinet body 1 through the air blower 35 in the air blast assembly, so that the hot air ventilation and dehumidification operation is facilitated.
In the invention, the lifting component comprises wiring holes formed in one side of the top of the L-shaped mounting plate 21 and one end of the cabinet body 1, a laying wheel 37 is arranged on one side of the middle position of the top inner wall of the cabinet body 1 and one side of the top inner wall of the L-shaped side frame 4, a steel wire rope 25 penetrating through the two wiring holes is laid on the laying wheel 37, one end of the steel wire rope 25 is fixedly arranged at the middle position of the top of the U-shaped movable frame 31, a winding and unwinding reel 28 is fixedly arranged at the other end of the outer wall of the first connecting shaft, the other end of the steel wire rope 25 is sleeved on the winding and unwinding reel 28, a bevel gear 27, the first connecting shaft and the winding and unwinding reel 28 are driven to rotate by a forward and backward motor 20, the heights of the U-shaped movable frame 31, the net bag 12 and a drying agent are adjusted, so that the net bag 12 and the drying agent slowly lift in the cabinet body 1, and the drying agent realize multi-position moisture absorption operation when the drying agent absorbs moisture.
According to the invention, the mounting opening 33 is formed on the other side of the L-shaped side frame 4, which is close to the heating coil 17, the sealing plate 41 is attached to the inner wall of the mounting opening 33, the locking plate 34 attached to one side of the sealing plate 41 is rotatably connected to the top and the bottom of one side of the mounting opening 33 through the fastening pin, the dust removing frame 16 distributed equidistantly is fixed on the other side of the sealing plate 41, the outer wall of the dust removing frame 16 is attached to the inner wall of the L-shaped side frame 4 and one side of the partition 18, the supporting blocks 43 attached equidistantly to the bottom of the dust removing frame 16 are fixed on one side of the partition 18, the positions of the dust removing frame 16 are staggered with the bending part of the heating coil 17, the filter screens 42 distributed equidistantly are fixed on the bottoms of the inner walls around the dust removing frame 16, the diameters of the filter screens 42 are gradually reduced from top to bottom, the problem that dust enters into the inside of the switch cabinet to cause damage of devices is avoided, and the air flow entering the cabinet 1 can be sufficiently heated under the layering obstruction of the dust removing frame 16 and the filter screens 42, and the subsequent ventilation and dehumidification effects are improved.
According to the invention, the air inlet assembly comprises a dust screen 2 fixedly arranged on the inner wall of an air inlet, the air inlet is in a fan shape, a second fan base is fixedly arranged on one side of the air inlet, which is close to the inside of an L-shaped side frame 4, an exhaust fan 15 is fixedly arranged on the second fan base, a through hole is formed in the top of one end of the L-shaped side frame 4 and is positioned at the right center of an area formed by four air inlets, a second connecting shaft is rotatably connected to the inner wall of the through hole, one end of the second connecting shaft and one end of a first connecting shaft are both fixedly provided with driving wheels, the outer walls of the two driving wheels are in transmission connection with a driving belt 3, one side of the outer wall of the second connecting shaft is fixedly provided with a cleaning scraping plate 40, the cleaning scraping plate 40 is attached to one side of the dust screen 2, the dust screen 2 is primarily removed by the aid of the dust screen 2 in the process of passing hot air through dehumidification, and the driving belt 3 and the cleaning scraping plate 40 are rotated when the first driving shaft rotates, and dust adhered to the surface of the dust screen 2 is removed by the cleaning scraping plate 40, and ventilation efficiency is improved.
In the invention, one side of a protective frame 13 is provided with a mounting groove, the inner wall of the mounting groove is fixedly provided with a humidity sensor 14, an exhaust fan 15, a heating coil 17, a forward and reverse motor 20 and a blower 35 are all connected with a switch through wires, the switch is connected with a processor through wires, and the signal input end of the processor is electrically connected with the signal output end of the humidity sensor 14.
According to the invention, the equipment rack 9 is fixedly arranged on the inner wall of the cabinet body 1, the guide grooves 36 are formed in two ends of one side of the equipment rack 9, two guide blocks attached to the inner wall of the guide grooves 36 are fixed on the U-shaped movable frame 31, the stability of the U-shaped movable frame 31 during lifting is kept under the sliding action of the guide blocks and the guide grooves 36, the cabinet door 10 is arranged on one side of the cabinet body 1, the waterproof underframe 6 is fixedly arranged at the bottom of the L-shaped side frame 4, the whole cabinet body 1 can be subjected to moisture-proof operation from the bottom through the waterproof underframe 6, and universal wheels are fixedly arranged at four corners of the bottom of the waterproof underframe 6, so that the whole switch cabinet is convenient to move.
The dehumidification method of the high-low voltage switch cabinet comprises the following steps of:
s1, presetting a threshold value of a humidity sensor 14, measuring the humidity inside the switch cabinet through a processor and the humidity sensor 14, and enabling an electric appliance inside the switch cabinet not to work when the humidity is within the threshold value, wherein the humidity is only required to be adsorbed and dehumidified through a desiccant in a net bag 12;
s2, when the humidity in the switch cabinet exceeds the threshold value within 10%, the processor controls the forward and reverse rotation motor 20 to work, the bevel gear 27 and the first connecting shaft as well as the winding and unwinding reel 28 are driven to rotate under the operation of the forward and reverse rotation motor 20, the winding and unwinding reel 28 is driven to perform the winding and unwinding operation to the steel wire rope 25 in a reciprocating manner by utilizing the reciprocating forward and reverse rotation of the forward and reverse rotation motor 20, so that the heights of the U-shaped movable frame 31, the net bag 12 and the drying agent are adjusted, the net bag 12 and the drying agent perform the slow lifting operation in the cabinet body 1, the multi-position moisture absorption operation is realized when the humidity is absorbed by the drying agent, and the operation of the forward and reverse rotation motor 20 is stopped when the humidity detected by the humidity sensor 14 is within the threshold value;
s3, when the humidity inside the switch cabinet exceeds more than 10% of a threshold value, the air exhauster 15, the temperature controller, the forward and reverse rotating motor 20 and the blower 35 are controlled by the processor to work simultaneously, the temperature controller and the heating coil 17 are utilized to heat air flow pumped into the L-shaped side frame 4 by the air exhauster 15 in the air inlet assembly, heated hot air is blown into the switch cabinet under the action of the blower 35 in the air blowing assembly, the dehumidification operation of the hot air is carried out, the forward and reverse rotating motor 20 in the displacement assembly can be matched to drive the threaded rod 24 to rotate positively and negatively, the U-shaped movable seat 23 and the blower 35 are driven to move back and forth, the hot air is uniformly blown into the switch cabinet, the sufficient dehumidification function is realized, and the humidity detected by the humidity sensor 14 is in the threshold value to stop the work of the air exhauster 15, the temperature controller, the forward and reverse rotating motor 20 and the blower 35.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (10)
1. The utility model provides a high-low voltage switchgear dehumidification structure, includes cabinet body (1), its characterized in that, the one end and the bottom fixed mounting of cabinet body (1) have same L type side frame (4), and four equidistance are the air intake that annular distributes has been seted up at the one end top of L type side frame (4), are provided with the air inlet subassembly on the air intake, a plurality of air exits (11) have been seted up at the other end top of cabinet body (1), and one side fixed mounting of air exits (11) has protective frame (13), one side inner wall that L type side frame (4) is close to the air intake is provided with heating element, movable groove (22) have been seted up to the bottom of cabinet body (1), and the inner wall activity of movable groove (22) is provided with U type movable seat (23), and the bottom of U type movable seat (23) is provided with displacement subassembly, is provided with the blast air subassembly on U type movable seat (23), the inside activity of cabinet body (1) is provided with U type movable frame (31), and locating slot (32) have all been seted up at the both ends of U type movable frame (31), and locating slot (32) one side inner wall that is close to the air inlet (12) is equipped with, locating bag (38) and the inside cardboard of fixed bag (12) is filled with the inside (12), the middle position of the top of the U-shaped movable frame (31) is provided with a lifting component.
2. The dehumidifying structure of the high-low voltage switch cabinet according to claim 1, wherein an L-shaped mounting plate (21) is fixedly mounted on the inner wall, close to a corner, of the L-shaped side frame (4), one end of the top of the L-shaped mounting plate (21) is attached to one end of the bottom of the cabinet body (1), a partition plate (18) is fixed between one side of the top of the L-shaped mounting plate (21) and the inner wall of the L-shaped side frame (4), the heating assembly comprises a heating coil (17) fixedly mounted on the outer wall of one side of the L-shaped side frame (4) and the partition plate (18), and the heating coil (17) is connected with a temperature controller.
3. The dehumidifying structure of a high-low voltage switch cabinet according to claim 2, wherein the displacement assembly comprises a threaded rod (24) rotatably connected between one side of an L-shaped mounting plate (21) and one end of an L-shaped side frame (4), a threaded hole is formed in the middle of the bottom of a U-shaped movable seat (23), the inner wall of the threaded hole is in threaded connection with the outer wall of the threaded rod (24), a rotating shaft (26) penetrating through the inner wall of the L-shaped mounting plate (21) is fixed at one end of the threaded rod (24), a first connecting shaft extending out of the L-shaped side frame (4) is fixed at one end of the rotating shaft (26), a bevel gear (27) meshed with the output shaft of the L-shaped mounting plate (21) is fixedly arranged at one side of the top of the L-shaped mounting plate (21), guide holes are formed in two sides of the bottom of the U-shaped movable seat (23), two guide rods (29) penetrating through the inner wall of the guide holes are fixed between one side of the L-shaped mounting plate (21) and one end of the L-shaped side frame (4), and the two side frames (20) are distributed at equal distances from the bottom of the threaded rod (4) and are distributed at two sides of the side of the L-shaped mounting plate (20).
4. A dehumidifying structure for high-low voltage switch cabinets according to claim 3, wherein the blast assembly comprises a first fan base (8) fixedly installed at the top of a U-shaped movable base (23), a blast blower (35) is fixedly installed on the first fan base (8), an air outlet pipe is fixedly installed at the bottom of the blast blower (35), an air guide pipe (30) is fixedly installed at a position, close to a corner, of an L-shaped mounting plate (21), a corrugated pipe (7) is fixedly installed between one end of the air guide pipe (30) and one end of the air outlet pipe, an air collecting hopper (19) is fixedly installed at the other end of the air guide pipe (30), and the air collecting hopper (19) is located below the second fan base.
5. The dehumidifying structure of a high-low voltage switch cabinet according to claim 4, wherein the lifting assembly comprises wiring holes formed in one side of the top of the L-shaped mounting plate (21) and one end of the top of the cabinet body (1), laying wheels (37) are arranged on one side of the middle position of the top inner wall of the cabinet body (1) and one side of the top inner wall of the L-shaped side frame (4), steel wires (25) penetrating through the two wiring holes are laid on the laying wheels (37), one end of each steel wire (25) is fixedly mounted at the middle position of the top of the U-shaped movable frame (31), a winding and unwinding reel (28) is fixed at the other end of the outer wall of the first connecting shaft, and the other end of each steel wire (25) is sleeved on the winding and unwinding reel (28).
6. The high-low voltage switch cabinet dehumidification structure according to claim 5, wherein the L-shaped side frame (4) is close to the other side of the heating coil (17) and is provided with a mounting opening (33), the inner wall of the mounting opening (33) is attached with a sealing plate (41), one side top and the bottom of the mounting opening (33) are both rotationally connected with a locking plate (34) attached to one side of the sealing plate (41) through fastening pins, the other side of the sealing plate (41) is fixedly provided with a dust removing frame (16) distributed equidistantly, the outer wall of the dust removing frame (16) is attached to the inner wall of the L-shaped side frame (4) and one side of the partition plate (18), one side of the partition plate (18) is fixedly provided with a supporting block (43) attached to the bottom of the dust removing frame (16) equidistantly, the positions of the dust removing frame (16) are staggered with the bending parts of the heating coil (17), the bottoms of the surrounding inner walls of the dust removing frame (16) are fixedly provided with filter screens (42) distributed equidistantly, and the pore diameters of the filter screens (42) are gradually reduced from top to bottom.
7. The dehumidifying structure of a high-low voltage switch cabinet according to claim 6, wherein the air inlet assembly comprises dustproof nets (2) fixedly installed on the inner walls of the air inlets, the air inlets are fan-shaped, a second fan base is fixedly installed on one side, close to the inside of the L-shaped side frame (4), of the air inlets, an exhaust fan (15) is fixedly installed on the second fan base, a through hole is formed in the top of one end of the L-shaped side frame (4), the through hole is located in the right central position of an area formed by the four air inlets, a second connecting shaft is rotatably connected to the inner walls of the through holes, driving wheels are fixedly arranged at one ends of one end of the second connecting shaft and one end of the first connecting shaft, driving belts (3) are connected to the outer wall of the two driving wheels in a driving mode, a cleaning scraper (40) is fixedly arranged on one side of the outer wall of the second connecting shaft, and the cleaning scraper (40) is attached to one side of the dustproof nets (2).
8. The dehumidifying structure of high-low voltage switch cabinet according to claim 7, wherein a mounting groove is formed in one side of the protective frame (13), a humidity sensor (14) is fixedly mounted on the inner wall of the mounting groove, the exhaust fan (15), the temperature controller, the forward-reverse motor (20) and the blower (35) are all connected with a switch through wires, the switch is connected with a processor through wires, and a signal input end of the processor is electrically connected with a signal output end of the humidity sensor (14).
9. The dehumidifying structure of high-low voltage switch cabinet according to claim 8, wherein the inner wall of the cabinet body (1) is fixedly provided with an equipment rack (9), guide grooves (36) are formed in two ends of one side of the equipment rack (9), two guide blocks attached to the inner wall of the guide grooves (36) are fixed on the U-shaped movable frame (31), a cabinet door (10) is arranged on one side of the cabinet body (1), the bottom of the L-shaped side frame (4) is fixedly provided with a waterproof bottom frame (6), and universal wheels are fixedly arranged at four corners of the bottom of the waterproof bottom frame (6).
10. A dehumidification method of a high-low voltage switch cabinet, which adopts the dehumidification structure of the high-low voltage switch cabinet as claimed in claims 1-9, and is characterized by comprising the following steps:
s1, presetting a threshold value of a humidity sensor (14), measuring the humidity inside the switch cabinet through a processor and the humidity sensor (14), and enabling an electric appliance inside the switch cabinet not to work when the humidity is within the threshold value, wherein the humidity is only required to be adsorbed and dehumidified through a desiccant in a net bag (12);
s2, when the humidity in the switch cabinet exceeds the threshold value within 10%, controlling the operation of a forward and reverse rotation motor (20) through a processor, driving a bevel gear (27) and a first connecting shaft and a winding and unwinding reel (28) to rotate under the operation of the forward and reverse rotation motor (20), driving the winding and unwinding reel (28) to perform the reciprocating winding and unwinding operation on a steel wire rope (25) by utilizing the reciprocating forward and reverse rotation of the forward and reverse rotation motor (20), and adjusting the heights of a U-shaped movable frame (31), a net bag (12) and a drying agent, so that the net bag (12) and the drying agent perform slow lifting operation in the cabinet body (1), thereby realizing multi-position moisture absorption operation when the humidity is absorbed through the drying agent, and stopping the operation of the forward and reverse rotation motor (20) when the humidity detected by a humidity sensor (14) is in the threshold value;
s3, when the humidity inside the switch cabinet exceeds more than 10% of a threshold value, the air exhauster (15), the temperature controller, the forward and backward rotating motor (20) and the blower (35) are controlled by the processor to work simultaneously, the temperature controller and the heating coil (17) are utilized to heat air flow in the L-shaped side frame (4) drawn by the air exhauster (15) in the air inlet assembly, heated hot air is blown into the switch cabinet under the action of the blower (35) in the blower assembly, the dehumidification operation of introducing hot air is carried out, the forward and backward rotating motor (20) in the displacement assembly can be matched to drive the threaded rod (24) to rotate forward and backward, the U-shaped movable seat (23) and the blower (35) are driven to move back and forth, so that hot air uniformly blows inside the switch cabinet, the sufficient dehumidification function is realized, and the humidity detected by the humidity sensor (14) is in the threshold value to stop the work of the air exhauster (15), the temperature controller, the forward and backward rotating motor (20) and the blower (35).
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| CN202310338723.1A CN116526315B (en) | 2023-03-31 | 2023-03-31 | Dehumidification structure and dehumidification method of high-low voltage switch cabinet |
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