CN113067255A - Intelligent monitoring type high-low voltage power distribution cabinet and monitoring method thereof - Google Patents

Intelligent monitoring type high-low voltage power distribution cabinet and monitoring method thereof Download PDF

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Publication number
CN113067255A
CN113067255A CN202110256456.4A CN202110256456A CN113067255A CN 113067255 A CN113067255 A CN 113067255A CN 202110256456 A CN202110256456 A CN 202110256456A CN 113067255 A CN113067255 A CN 113067255A
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China
Prior art keywords
air
inner cavity
pipe
power distribution
distribution cabinet
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CN202110256456.4A
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Chinese (zh)
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CN113067255B (en
Inventor
吴洪军
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Anhui Zhongyi Electrical Equipment Co ltd
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Anhui Zhongyi Electrical Equipment Co ltd
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    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26Casings; Parts thereof or accessories therefor
    • H02B1/28Casings; Parts thereof or accessories therefor dustproof, splashproof, drip-proof, waterproof or flameproof
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/20Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
    • H02B1/202Cable lay-outs
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26Casings; Parts thereof or accessories therefor
    • H02B1/30Cabinet-type casings; Parts thereof or accessories therefor
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/56Cooling; Ventilation
    • H02B1/565Cooling; Ventilation for cabinets
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K7/00Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/10Structural association with clutches, brakes, gears, pulleys or mechanical starters
    • H02K7/1004Structural association with clutches, brakes, gears, pulleys or mechanical starters with pulleys

Abstract

The invention discloses an intelligent monitoring type high-low voltage power distribution cabinet and a monitoring method thereof, relates to the related field of high-low voltage power distribution cabinets, and aims to solve the problems that the inner cavities of the conventional high-low voltage power distribution cabinets are rectangular, a plurality of heat dissipation fans or heat dissipation pipelines are required to be arranged at the rear ends for heat dissipation of a plurality of chambers such as a high-voltage chamber and a low-voltage chamber in the high-low voltage power distribution cabinet, a plurality of heat dissipation devices are required to be started simultaneously for heat dissipation together, and more energy is required to be consumed. The cabinet body includes protective housing, the inside both ends of protective housing are provided with the level to the baffle, protective housing, two the level is provided with first inner chamber to baffle and vertical to the rear end between the baffle, protective housing, two the level is provided with the second inner chamber to baffle and vertical to the front end between the baffle, protective housing, upper end the level is provided with the fourth inner chamber to between the baffle, switch board installation main part is installed to the inside centre of second inner chamber.

Description

Intelligent monitoring type high-low voltage power distribution cabinet and monitoring method thereof
Technical Field
The invention relates to the field of high-low voltage power distribution cabinets, in particular to an intelligent monitoring type high-low voltage power distribution cabinet and a monitoring method thereof.
Background
The high-low voltage power distribution cabinet is the power distribution equipment used for distributing, controlling, metering and connecting cables in a power supply system, a general power supply station and a substation use high-voltage switch cabinets, then the low-voltage power distribution cabinet is led out from a transformer step-down low-voltage side, the low-voltage power distribution cabinet is a distribution board for each power consumption, a control box and a switch box are equipment of the power distribution device, wherein the equipment integrally assembles a plurality of switches, circuit breakers, fuses, buttons, indicating lamps, instruments, electric wires and other protection devices into a whole to meet the design function requirements. Commonly known as: high-low voltage switch cabinet or high-low voltage electrical complete equipment.
Because current when a series of electrical elements such as switch, circuit breaker, fuse, instrument work in the high-low voltage power distribution cabinet, and the electric energy has the loss in transmission process, and loss electric energy turns into heat energy loss in the high-low voltage power distribution cabinet, therefore generally supporting has comprehensive heat radiation structure in the high-low voltage power distribution cabinet, guarantees the normal work of inside electrical element through the working condition of monitoring heat radiation structure in the high-low voltage power distribution cabinet.
At present, inner cavities of high-voltage and low-voltage power distribution cabinets are rectangular, in order to ensure that heat dissipation of a plurality of cavities such as a high-voltage chamber and a low-voltage chamber in the high-voltage and low-voltage power distribution cabinet needs to be provided with a plurality of heat dissipation fans or heat dissipation pipelines for heat dissipation at the rear end, a plurality of heat dissipation devices are simultaneously started to perform heat dissipation together, and more energy needs to be consumed; therefore, the market urgently needs to develop an intelligent monitoring type high-low voltage power distribution cabinet and a monitoring method thereof to help people solve the existing problems.
Disclosure of Invention
The invention aims to provide an intelligent monitoring type high-low voltage power distribution cabinet and a monitoring method thereof, and aims to solve the problems that the inner cavities of the existing high-low voltage power distribution cabinets in the background art are all rectangular, a plurality of radiating fans or radiating pipelines are required to be arranged at the rear ends for ensuring the heat dissipation of a plurality of chambers such as a high-voltage chamber, a low-voltage chamber and the like in the high-low voltage power distribution cabinet, a plurality of radiating devices are simultaneously started to carry out heat dissipation together, and more energy is required to be consumed.
In order to achieve the purpose, the invention provides the following technical scheme: an intelligent monitoring type high-low voltage power distribution cabinet comprises a cabinet body, wherein the cabinet body comprises a protective shell, horizontal direction clapboards are arranged at two ends inside the protective shell, the horizontal direction clapboards are fixed with the inner wall of the protective shell, vertical direction clapboards are arranged at the upper ends of the horizontal direction clapboards inside the protective shell, the lower ends of the vertical direction clapboards are respectively fixed with the two horizontal direction clapboards, the upper ends and the lower ends of the vertical direction clapboards are respectively fixed with the inner wall of the protective shell and the upper ends of the horizontal direction clapboards, a first inner cavity is arranged at the rear end between the protective shell and the two horizontal direction clapboards and between the vertical direction clapboards, a second inner cavity is arranged at the front end between the protective shell and the two horizontal direction clapboards and between the vertical direction clapboards, a fourth inner cavity is arranged between the horizontal direction clapboards at the upper ends of the protective shell, a power distribution cabinet installation main body is installed in the middle of the interior of the second inner cavity, a shaft at the lower end of the power distribution cabinet installation main body is connected with the horizontal partition plate at the lower end through a bearing, an intermediate sleeve assembly is arranged in the power distribution cabinet installation main body and fixed with the power distribution cabinet installation main body, the intermediate sleeve assembly is connected with the horizontal partition plate at the upper end through a bearing, the intermediate sleeve assembly comprises an intermediate support tube, a fixed disc is arranged in the intermediate support tube, an intermediate bearing is arranged in the middle of the fixed disc, the intermediate bearing is fixed with the fixed disc through a connecting part, a plurality of through-wire grooves are arranged on the outer side surface of the intermediate support tube in a penetrating manner, a main air pipe is installed in the intermediate bearing, and one end of the main air pipe extends to the interior of the intermediate support tube, the other end of the main air pipe is provided with a connecting three-way pipe, the output end of the connecting three-way pipe is respectively connected with a first air dividing pipe and a second air dividing pipe, the first air dividing pipe is provided with a first control valve, the second air dividing pipe is provided with a second control valve, the main air pipe, the connecting three-way pipe, the first air dividing pipe, the first control valve, the second air dividing pipe and the second control valve are all arranged on one side in the fourth inner cavity, one side in the fourth inner cavity is also provided with an air feeder, the other end of the second air dividing pipe is connected with the output end of the air feeder, the other side in the fourth inner cavity is provided with an air exhauster, the first air dividing pipe is connected with the input end of the air exhauster, the first inner cavity is internally provided with a single chip microcomputer, the second inner cavity is internally provided with a temperature sensor along the, the output end of the singlechip is connected with the input ends of the first control valve, the second control valve, the exhaust fan and the air feeder.
Preferably, a switch back door is installed at the rear end of the protective shell, sealing strips are vertically arranged at the inner side of the switch back door and are connected with the upper end and the lower end of the partition plate, the sealing strips are fixedly connected with the switch back door, an air outlet slot hole is formed in the upper end of the switch back door along the sealing strips, the air outlet slot hole is communicated with one side of the fourth inner cavity, an air inlet slot hole is formed in the middle of the upper end of the front end face of the protective shell and is communicated with the fourth inner cavity, ventilation slot holes are formed in the two side faces of the protective shell along the two sides of the second inner cavity, and air filter screens are fixedly connected in the.
Preferably, an upper fixing disc is arranged at the upper end of the upper edge of the outer side of the middle supporting tube on the power distribution cabinet mounting main body and fixed with the middle supporting tube, a lower fixing disc is arranged at the lower end of the upper edge of the outer side of the middle supporting tube on the power distribution cabinet mounting main body and fixed with the middle supporting tube, a mounting plate is arranged between the upper fixing disc and the lower fixing disc and fixed with the middle supporting tube, the mounting plate is fixedly connected with the upper fixing disc, the lower fixing disc and the middle supporting tube, an electric element mounting hole is arranged on the mounting plate, a middle sliding disc is arranged between the upper fixing disc and the lower fixing disc and arranged along the outer sides of the middle supporting tube and the mounting plate, the diameter of the middle sliding disc is larger than that of the upper fixing disc and the lower fixing, the middle supporting tube is connected with the middle sliding disc through a supporting frame, the supporting frame is fixed with the middle supporting tube through screws, and the screws are in threaded connection with the supporting connection holes.
Preferably, a sealing cover is arranged at the upper end of the middle supporting pipe on the middle sleeve assembly, an upper connecting pipe is arranged in the middle of the upper end of the sealing cover, an embedding rod is annularly fixed on the upper end face of the middle supporting pipe, an embedding groove is formed in the position, corresponding to the embedding rod, of the lower end face of the sealing cover, a through wire inner cavity is formed in the upper connecting pipe, the sealing cover and the middle supporting pipe, and the through wire inner cavity is communicated with the through wire groove.
Preferably, a lower embedding plate is arranged on the middle sleeve assembly along the lower end of the middle supporting pipe and fixed inside the lower fixing plate, a sliding part is arranged on the outer side of the fixing plate, and a sliding groove is formed in the inner wall of the middle supporting pipe and slides along the sliding groove.
Preferably, the support frame includes vertical support board, horizontal support board and diagonal bracing piece, and horizontal support board is located the upper end in the vertical support board outside, and diagonal bracing piece is located between vertical support board and the horizontal support board, and welded fastening between vertical support board, horizontal support board and the diagonal bracing piece are adjacent, and vertical support board's medial surface sets up to the arc, and horizontal support board's upper end and middle sliding tray are laminated.
Preferably, a switch front door is installed in the middle of the front end of the protective shell, a supporting bottom frame is arranged at the lower end of the protective shell, a third inner cavity is arranged inside the protective shell along the lower end of the horizontal partition plate, a driving motor is installed at the lower end inside the first inner cavity, the input end of the driving motor is connected with the output end of the single chip microcomputer, a driving wheel is installed at one side inside the third inner cavity, the driving wheel is fixed to the output shaft of the driving motor, a driven wheel is installed at the other side inside the third inner cavity, the driven wheel is connected with the driving wheel through transmission of a transmission belt, and the driven wheel is connected with the power.
A monitoring method comprising the steps of:
the method comprises the following steps: under a normal working state, the electric elements arranged on the mounting plate of the mounting main body of the power distribution cabinet work normally, the second control valve on the second air distribution pipe is in a closed state, and the first control valve on the first air distribution pipe is in an open state;
step two: the exhaust fan extracts air in the middle supporting pipe on the middle sleeve pipe assembly through the first branch air pipe and the main air pipe, and due to the existence of the wire passing groove on the middle supporting pipe, air in the second inner cavity is extracted, and cold air is sucked through the ventilation groove holes to circulate air in the second inner cavity;
step three: when the air circulation speed in the second inner cavity is not higher than the heat generation speed, the temperature sensor monitors the temperature rise in the second inner cavity, and the single chip microcomputer controls the first control valve and the exhaust fan as well as the second control valve and the air feeder to work alternately;
step four: the exhaust fan extracts hot air in the second inner cavity through the first branch air pipe and the main air pipe, after a certain time interval, a second control valve on the second branch air pipe is closed, a first control valve on the first branch air pipe is opened, the air feeder feeds cold air into the second inner cavity through the second branch air pipe and the main air pipe, after another time interval, a second control valve on the second branch air pipe is opened, the first control valve on the first branch air pipe is closed, and the exhaust fan extracts hot air in the second inner cavity through the first branch air pipe and the main air pipe;
step five: repeating the step four until the internal temperature of the second inner cavity monitored by the temperature sensor is reduced;
step six: if the step four is repeated, the internal temperature of the second inner cavity monitored by the temperature sensor still keeps high level, the driving motor is started, the power distribution cabinet mounting main body is driven to rotate through the transmission relation among the driving wheel, the driving belt and the driven wheel, and the electric elements mounted on the power distribution cabinet mounting main body synchronously rotate;
step seven: the air in the second inner cavity is disturbed under the rotating action of the power distribution cabinet mounting main body, the air flow flux through the ventilation slot holes is further increased, the hot air in the second inner cavity is uniformly extracted, and the sent cold air is uniformly distributed in the second inner cavity.
Compared with the prior art, the invention has the beneficial effects that:
1. in the invention, in a normal working state, a mounting plate mounted on a mounting main body of a power distribution cabinet works normally, a second control valve on a second air dividing pipe is in a closed state, and a first control valve on a first air dividing pipe is in an open state; the exhaust fan extracts air in the middle supporting pipe on the middle sleeve pipe assembly through the first branch air pipe and the main air pipe, and due to the existence of the wire passing groove on the middle supporting pipe, air in the second inner cavity is extracted, and cold air is sucked through the ventilation groove holes to circulate air in the second inner cavity; when the air circulation speed in the second inner cavity is not higher than the heat generation speed, the temperature sensor monitors the temperature rise in the second inner cavity, and the single chip microcomputer controls the first control valve and the exhaust fan as well as the second control valve and the air feeder to work alternately; the exhaust fan extracts hot air in the second inner cavity through the first branch air pipe and the main air pipe, after a certain time interval, a second control valve on the second branch air pipe is closed, a first control valve on the first branch air pipe is opened, the air feeder feeds cold air into the second inner cavity through the second branch air pipe and the main air pipe, after another time interval, a second control valve on the second branch air pipe is opened, the first control valve on the first branch air pipe is closed, and the exhaust fan extracts hot air in the second inner cavity through the first branch air pipe and the main air pipe; repeating the steps until the internal temperature of the second inner cavity monitored by the temperature sensor drops; and the heat dissipation is completed by the alternative opening of the second control valve and the first control valve. Because of switch board installation main part sets up to cylindrical, all ventilation cooling rely on the interior wire casing circulation of logical groove on the middle sleeve subassembly, consequently need not set up multiunit radiator unit, rely on same set of subassembly can realize the heat dissipation of a plurality of cavities such as high-low voltage distribution cabinet interior hyperbaric chamber, low-pressure chamber, and need not increase unnecessary heat dissipation pipeline intercommunication, the inner chamber of having solved present high-low voltage distribution cabinet is the rectangle, in order to guarantee high-low voltage distribution cabinet interior hyperbaric chamber, the heat dissipation of a plurality of cavities such as low-pressure chamber need be provided with a plurality of heat dissipation fans or the heat dissipation pipeline dispels the heat at the rear end, a plurality of heat-radiating equipment open simultaneously and dispel the heat.
2. In the invention, if the internal temperature of the second inner cavity monitored by the temperature sensor still keeps high level, the driving motor is started, the power distribution cabinet mounting main body is driven to rotate through the transmission relation among the driving wheel, the driving belt and the driven wheel, and the electric elements mounted on the power distribution cabinet mounting main body synchronously rotate; the air in the second inner cavity is disturbed under the rotating action of the power distribution cabinet mounting main body, the air flow flux through the ventilation slot holes is further increased, the hot air in the second inner cavity is uniformly extracted, and the sent cold air is uniformly distributed in the second inner cavity. When the staff overhauls regularly, driving motor passes through drive wheel, drive belt and drives the switch board installation main part rotation from the transmission relation of driving wheel, drive belt, and the electric elements of installation rotate in step in the switch board installation main part, and the electric elements with different positions roll out, makes things convenient for the staff to overhaul. Through the rotatability of the power distribution cabinet installation main body, the output power of the output motor is adjusted in a matched mode, and the work of heat dissipation in a matched mode and maintenance in a matched mode is completed.
3. In the invention, an installation plate is annularly fixed between an upper fixed disk and a lower fixed disk of an installation main body of the power distribution cabinet along the outer side of a middle sleeve assembly, and the installation plate is provided with an electric element installation hole, so that different electric elements can be installed on the installation plate, and a wire is led into a middle supporting pipe through a wire passing groove, upwards passes through a wire passing inner cavity through a neutral stop among the fixed disk, a connecting part and a middle bearing. And promote middle slip dish upwards slide to the assigned position after utilize the support frame to install on the middle stay tube of middle thimble assembly, stay tube lateral surface in the middle of the laminating of vertical support board, horizontal support board supports middle slip dish, forms a plurality of functional cavity between a plurality of middle slip dishes, accords with the setting of a plurality of functional partitions in present high-low voltage distribution cabinet, accomplishes the installation and the separation of installation electrical component on the mounting panel.
Drawings
Fig. 1 is an internal side view of an intelligent monitoring type high-low voltage power distribution cabinet of the invention;
fig. 2 is a schematic structural view of the cabinet body of the present invention;
fig. 3 is a schematic structural view of a power distribution cabinet mounting main body of the present invention;
fig. 4 is a schematic structural view of the power distribution cabinet mounting main body of the present invention with the intermediate sliding tray removed;
FIG. 5 is an exploded view of the intermediate sleeve assembly of the present invention;
FIG. 6 is a schematic structural diagram of the support frame of the present invention;
fig. 7 is a partial schematic relationship diagram of an intelligent monitoring high-low voltage power distribution cabinet of the present invention.
In the figure: 1. a cabinet body; 2. a protective housing; 3. a horizontal partition plate; 4. a vertically oriented baffle; 5. opening and closing a front door; 6. opening and closing the rear door; 7. a sealing strip; 8. an air outlet slot; 9. a support chassis; 10. a ventilation slot; 11. an air inlet slot; 12. a first lumen; 13. a second lumen; 14. a third lumen; 15. a fourth lumen; 16. a drive motor; 17. a drive wheel; 18. a transmission belt; 19. a driven wheel; 20. a single chip microcomputer; 21. a temperature sensor; 22. a main air duct; 23. connecting a three-way pipe; 24. a first air dividing pipe; 25. a first control valve; 26. an exhaust fan; 27. a second sub-air duct; 28. a second control valve; 29. a blower; 30. the power distribution cabinet is provided with a main body; 31. a support frame; 32. a middle sleeve assembly; 33. an upper connecting pipe; 34. sealing the cover; 35. fixing the disc; 36. a middle support tube; 37. a lower embedded tray; 38. a through wire inner cavity; 39. a sliding part; 40. a connecting portion; 41. a middle bearing; 42. a sliding groove; 43. an embedded rod; 44. a through wire groove; 45. supporting the connecting hole; 46. an upper fixed disc; 47. a lower fixed disc; 48. a middle sliding disk; 49. mounting a plate; 50. an electric component mounting hole; 51. a vertical support plate; 52. a horizontal support plate; 53. an oblique supporting rod.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-7, an embodiment of the present invention is shown: an intelligent monitoring type high-low voltage power distribution cabinet comprises a cabinet body 1, wherein the cabinet body 1 comprises a protective shell 2, horizontal partition plates 3 are arranged at two ends inside the protective shell 2, the horizontal partition plates 3 are fixed with the inner wall of the protective shell 2, a vertical partition plate 4 is arranged inside the protective shell 2 along the upper end of the horizontal partition plate 3, the upper end and the lower end of the lower end vertical partition plate 4 are respectively fixed with the two horizontal partition plates 3, the upper end and the lower end of the upper end vertical partition plate 4 are respectively fixed with the inner wall of the protective shell 2 and the upper end horizontal partition plate 3, a first inner cavity 12 is arranged at the rear end between the protective shell 2, the two horizontal partition plates 3 and the vertical partition plate 4, a second inner cavity 13 is arranged at the front end between the protective shell 2 and the vertical partition plate 4, a fourth inner cavity 15 is arranged between the protective shell 2 and the upper end horizontal partition plate 3, and two fourth inner cavities 15, a power distribution cabinet installation main body 30 is installed in the middle of the inside of the second inner cavity 13, a shaft at the lower end of the power distribution cabinet installation main body 30 is connected with a horizontal partition plate 3 at the lower end through a bearing, a middle sleeve assembly 32 is arranged in the power distribution cabinet installation main body 30, the middle sleeve assembly 32 is fixed with the power distribution cabinet installation main body 30, the middle sleeve assembly 32 is connected with the horizontal partition plate 3 at the upper end through a bearing, the middle sleeve assembly 32 comprises a middle support tube 36, a fixed disc 35 is arranged in the middle support tube 36, a middle bearing 41 is arranged in the middle of the fixed disc 35, the middle bearing 41 is fixed with the fixed disc 35 through a connecting part 40, a through line groove 44 is arranged on the outer side surface of the middle support tube 36 in a penetrating manner, a wire is introduced into the middle support tube 36 through the through line groove 44 and upwards passes through the, a plurality of through-line grooves 44 are annularly arrayed, a main air pipe 22 is arranged inside the middle bearing 41, the main air pipe 22 is kept still when the middle sleeve assembly 32 is rotatably connected with the power distribution cabinet installation main body 30 due to the existence of the middle bearing 41, one end of the main air pipe 22 extends into the middle support pipe 36, a connecting three-way pipe 23 is arranged at the other end of the main air pipe 22, the output end of the connecting three-way pipe 23 is respectively connected with a first branch air pipe 24 and a second branch air pipe 27, a first control valve 25 is arranged on the first branch air pipe 24, a second control valve 28 is arranged on the second branch air pipe 27, the main air pipe 22, the connecting three-way pipe 23, the first branch air pipe 24, the first control valve 25, the second branch air pipe 27 and the second control valve 28 are all arranged in a fourth inner cavity 15 at one side, a blower 29 is also arranged in the fourth inner cavity 15 at one side, an exhaust fan 26 is installed in the fourth inner cavity 15 on the other side, the first branch air duct 24 is connected with the input end of the exhaust fan 26 (when the power distribution cabinet is in normal operation, the electric elements installed on the power distribution cabinet installation main body 30 are in normal operation, the second control valve 28 on the second branch air duct 27 is in a closed state, the first control valve 25 on the first branch air duct 24 is in an open state, the exhaust fan 26 extracts air in the middle support tube 36 on the middle sleeve assembly 32 through the first branch air duct 24 and the main air duct 22, due to the existence of the through line slot 44 on the middle support tube 36, the air in the second inner cavity 13 is extracted, and cold air is sucked through the ventilation slot 10 to circulate air in the second inner cavity 13), the single chip microcomputer 20 is installed in the first inner cavity 12, the temperature sensor 21 is installed in the second inner cavity 13 along one side of the upper end horizontally towards the lower end of the partition plate 3, the output end of the single chip microcomputer 20 is connected with the input ends of a first control valve 25, a second control valve 28, an exhaust fan 26 and a blower 29.
Further, a rear opening and closing door 6 is installed at the rear end of the protective shell 2, sealing strips 7 are arranged on the inner side of the rear opening and closing door 6 along the vertical direction to the upper end and the lower end of the partition plate 4, the sealing strips 7 are fixedly connected with the rear opening and closing door 6, an air outlet groove hole 8 is formed in the upper end of the rear opening and closing door 6 along the sealing strips 7, the air outlet groove hole 8 is communicated with a fourth inner cavity 15 on one side, an air inlet groove hole 11 is formed in the middle of the upper end of the front end face of the protective shell 2, the air inlet groove hole 11 is communicated with the fourth inner cavity 15 on the other side, ventilation groove holes 10 are formed in the two side faces of the protective shell 2 along the two sides of the.
Further, an upper fixing plate 46 is arranged at the upper end of the power distribution cabinet mounting main body 30 along the outer side of the middle support tube 36, the upper fixing plate 46 is fixed with the middle support tube 36, a lower fixing plate 47 is arranged at the lower end of the power distribution cabinet mounting main body 30 along the outer side of the middle support tube 36, the lower fixing plate 47 is fixed with the middle support tube 36, a mounting plate 49 is arranged between the upper fixing plate 46 and the lower fixing plate 47 along the outer side of the middle support tube 36, the mounting plate 49 is fixedly connected with the upper fixing plate 46, the lower fixing plate 47 and the middle support tube 36, an electric element mounting hole 50 is arranged on the mounting plate 49, a corresponding electric element is mounted on the mounting plate 49, a middle sliding plate 48 is arranged between the upper fixing plate 46 and the lower fixing plate 47 along the outer side of the middle support tube 36 and the mounting plate 49, the diameter of the middle sliding, support connection holes 45 are formed in two ends of the outer side of the middle support pipe 36, the middle support pipe 36 is connected with the middle sliding plate 48 through a support frame 31, the support frame 31 is fixed with the middle support pipe 36 through screws, the screws are in threaded connection with the support connection holes 45, the middle sliding plate 48 is pushed to slide upwards according to the position of an electric element to be installed and the separation of an internal cavity, the middle sliding plate 48 is installed on the middle support pipe 36 of the middle sleeve pipe assembly 32 through the support frame 31 after reaching a specified position, and a plurality of functional cavities are formed among the middle sliding plates 48.
Furthermore, a sealing cover 34 is arranged on the middle sleeve component 32 along the upper end of the middle support pipe 36, an upper connecting pipe 33 is arranged in the middle of the upper end of the sealing cover 34, an embedded rod 43 is annularly fixed on the upper end surface of the middle support pipe 36, an embedded groove is arranged on the lower end surface of the sealing cover 34 corresponding to the embedded rod 43, a through wire inner cavity 38 is arranged inside the upper connecting pipe 33, the sealing cover 34 and the middle support pipe 36, and the through wire inner cavity 38 is communicated with the through wire groove 44.
Further, a lower embedding disc 37 is arranged on the middle sleeve assembly 32 along the lower end of the middle supporting pipe 36, the lower embedding disc 37 is fixed inside a lower fixing disc 47 and is further fixedly connected to guarantee the stability of the middle sleeve assembly 32, a sliding portion 39 is arranged on the outer side of the fixing disc 35, a sliding groove 42 is formed in the inner wall of the middle supporting pipe 36, the sliding portion 39 slides along the sliding groove 42, and the fixing disc 35 can be detached in a normal state.
Further, the support frame 31 includes a vertical support plate 51, a horizontal support plate 52 and an oblique support rod 53, the horizontal support plate 52 is located at the upper end outside the vertical support plate 51, the oblique support rod 53 is located between the vertical support plate 51 and the horizontal support plate 52, the vertical support plate 51, the horizontal support plate 52 and the oblique support rod 53 are welded and fixed adjacently, the inner side surface of the vertical support plate 51 is arc-shaped, and the upper end of the horizontal support plate 52 is attached to the middle sliding disc 48.
Further, switch qianmen 5 is installed to the centre of protective housing 2 front end, the lower extreme of protective housing 2 is provided with support chassis 9, protective housing 2 is inside to be provided with third inner chamber 14 along the lower extreme level to the lower extreme of baffle 3, driving motor 16 is installed to the inside lower extreme of first inner chamber 12, driving motor 16's input is connected with the output of singlechip 20, driving wheel 17 is installed to the inside one side of third inner chamber 14, driving wheel 17 is fixed with driving motor 16's output shaft, driven wheel 19 is installed to the inside opposite side of third inner chamber 14, driven wheel 19 passes through drive belt 18 transmission with driving wheel 17 and is connected, driven wheel 19 passes through the hub connection with switch board installation main part 30. The driving motor 16 is started, the power distribution cabinet installation main body 30 is driven to rotate through the transmission relation of the driving wheel 17, the driving belt 18 and the driven wheel 19, the electric elements installed on the power distribution cabinet installation main body 30 rotate synchronously, air inside the second inner cavity 13 is disturbed under the rotating action of the power distribution cabinet installation main body 30, the air flow through the ventilation slot holes 10 is further increased, hot air inside the second inner cavity 13 is uniformly extracted, and sent cold air is uniformly distributed to the inside of the second inner cavity 13. And when the staff overhauls regularly, driving motor 16 drives switch board installation main part 30 through the drive relation of drive wheel 17, drive belt 18 and follow driving wheel 19 and rotates, and the electric elements of installing on the switch board installation main part 30 rotate in step, and the electric elements of different positions are rolled out, make things convenient for the staff to overhaul.
A monitoring method comprising the steps of:
the method comprises the following steps: under the normal working state, the electric elements arranged on the mounting plate 49 of the mounting main body 30 of the power distribution cabinet work normally, the second control valve 28 on the second air distribution pipe 27 is in a closed state, and the first control valve 25 on the first air distribution pipe 24 is in an open state;
step two: the air extractor 26 extracts the air inside the intermediate support tube 36 on the intermediate sleeve assembly 32 through the first branch duct 24 and the main duct 22, and the air inside the second inner chamber 13 is extracted due to the presence of the through slot 44 on the intermediate support tube 36, and sucks in the cold air through the ventilation slot holes 10 to circulate the air inside the second inner chamber 13;
step three: when the air circulation speed in the second inner cavity 13 is not higher than the heat generation speed, the temperature sensor 21 will monitor the temperature rise in the second inner cavity 13, and at this time, the single chip microcomputer 20 controls the first control valve 25 and the exhaust fan 26, and the second control valve 28 and the blower 29 to work alternately;
step four: the exhaust fan 26 extracts hot air in the second inner cavity 13 through the first branch air duct 24 and the main air duct 22, after a time interval, the second control valve 28 on the second branch air duct 27 is closed, the first control valve 25 on the first branch air duct 24 is opened, the blower 29 sends cold air into the second inner cavity 13 through the second branch air duct 27 and the main air duct 22, after another time interval, the second control valve 28 on the second branch air duct 27 is opened, the first control valve 25 on the first branch air duct 24 is closed, and the exhaust fan 26 extracts hot air in the second inner cavity 13 through the first branch air duct 24 and the main air duct 22;
step five: repeating the fourth step until the internal temperature of the second inner cavity 13 monitored by the temperature sensor 21 decreases;
step six: if the step four is repeated, the internal temperature of the second inner cavity 13 monitored by the temperature sensor 21 still keeps high level, the driving motor 16 is started, the power distribution cabinet installation main body 30 is driven to rotate through the transmission relation among the driving wheel 17, the driving belt 18 and the driven wheel 19, and the electric elements installed on the power distribution cabinet installation main body 30 synchronously rotate;
step seven: the main body 30 for installing the power distribution cabinet disturbs the air inside the second inner cavity 13 under the rotating action, the air flow through the ventilation slot 10 is further increased, the hot air inside the second inner cavity 13 is uniformly extracted, and the sent cold air is uniformly distributed inside the second inner cavity 13.
The working principle is as follows: according to the separation of the position of an electric element to be installed and an internal cavity, the middle sliding disc 48 is pushed to slide upwards, the electric element is installed on the middle supporting tube 36 of the middle sleeve assembly 32 by using the supporting frame 31 after reaching a specified position, the vertical supporting plate 51 is attached to the outer side surface of the middle supporting tube 36, the horizontal supporting plate 52 supports the middle sliding disc 48, a plurality of functional cavities are formed among the middle sliding discs 48, the corresponding electric element is installed on the installation plate 49, the wire is led into the middle supporting tube 36 through the through wire groove 44 and passes through the through wire inner cavity 38 upwards through a neutral stop among the fixed disc 35, the connecting part 40 and the middle bearing 41. When the electric distribution cabinet works normally, the electric elements arranged on the distribution cabinet installation main body 30 work normally, the second control valve 28 on the second air distribution pipe 27 is in a closed state, and the first control valve 25 on the first air distribution pipe 24 is in an open state; the air extractor 26 extracts the air inside the intermediate support tube 36 on the intermediate sleeve assembly 32 through the first branch duct 24 and the main duct 22, and the air inside the second inner chamber 13 is extracted due to the presence of the through slot 44 on the intermediate support tube 36, and sucks in the cold air through the ventilation slot holes 10 to circulate the air inside the second inner chamber 13; when the air circulation speed in the second inner cavity 13 is not higher than the heat generation speed, the temperature sensor 21 will monitor the temperature rise in the second inner cavity 13, and at this time, the single chip microcomputer 20 controls the first control valve 25 and the exhaust fan 26, and the second control valve 28 and the blower 29 to work alternately; the exhaust fan 26 extracts hot air in the second inner cavity 13 through the first branch air duct 24 and the main air duct 22, after a time interval, the second control valve 28 on the second branch air duct 27 is closed, the first control valve 25 on the first branch air duct 24 is opened, the blower 29 sends cold air into the second inner cavity 13 through the second branch air duct 27 and the main air duct 22, after another time interval, the second control valve 28 on the second branch air duct 27 is opened, the first control valve 25 on the first branch air duct 24 is closed, and the exhaust fan 26 extracts hot air in the second inner cavity 13 through the first branch air duct 24 and the main air duct 22; repeating the alternate opening action of the second control valve 28 and the first control valve 25 until the internal temperature of the second internal chamber 13 monitored by the temperature sensor 21 drops; if the internal temperature of the second inner cavity 13 monitored by the temperature sensor 21 keeps high level after repeated actions, the driving motor 16 is started, the power distribution cabinet installation main body 30 is driven to rotate through the transmission relation among the driving wheel 17, the driving belt 18 and the driven wheel 19, and the electric elements installed on the power distribution cabinet installation main body 30 synchronously rotate; the main body 30 for installing the power distribution cabinet disturbs the air inside the second inner cavity 13 under the rotating action, the air flow through the ventilation slot 10 is further increased, the hot air inside the second inner cavity 13 is uniformly extracted, and the sent cold air is uniformly distributed inside the second inner cavity 13. When the staff overhauls regularly, driving motor 16 drives switch board installation main part 30 through drive wheel 17, drive belt 18 and from the transmission relation of driving wheel 19 and rotates, and the electric elements of installation rotate in step on the switch board installation main part 30, and the electric elements with different positions are rolled out, make things convenient for the staff to overhaul.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (8)

1. The utility model provides an intelligence monitoring type high-low voltage distribution cabinet, includes the cabinet body (1), its characterized in that: the cabinet body (1) comprises a protective shell (2), horizontal direction clapboards (3) are arranged at two ends inside the protective shell (2), the horizontal direction clapboards (3) are fixed with the inner wall of the protective shell (2), vertical direction clapboards (4) are arranged inside the protective shell (2) along the upper ends of the horizontal direction clapboards (3), the lower ends of the vertical direction clapboards (4) are respectively fixed with the two horizontal direction clapboards (3), the upper ends of the vertical direction clapboards (4) are respectively fixed with the inner wall of the protective shell (2) and the upper ends of the horizontal direction clapboards (3), a first inner cavity (12) is arranged at the rear end between the protective shell (2), the two horizontal direction clapboards (3) and the vertical direction clapboards (4), a second inner cavity (13) is arranged at the front end between the protective shell (2), the two horizontal direction clapboards (3) and the vertical direction clapboards (4), the protective shell (2) and the upper end are provided with a fourth inner cavity (15) between the horizontal partition plates (3), the number of the fourth inner cavities (15) is two, a power distribution cabinet installation main body (30) is installed in the middle of the interior of the second inner cavity (13), the shaft and the lower end of the power distribution cabinet installation main body (30) are horizontally connected with the partition plates (3) through bearings, a middle sleeve pipe assembly (32) is arranged inside the power distribution cabinet installation main body (30), the middle sleeve pipe assembly (32) is fixed with the power distribution cabinet installation main body (30), the middle sleeve pipe assembly (32) is connected with the upper end through bearings between the horizontal partition plates (3), the middle sleeve pipe assembly (32) comprises a middle support pipe (36), a fixed disk (35) is arranged inside the middle support pipe (36), and a middle bearing (41) is arranged in the middle, the middle bearing (41) is fixed with the fixed disc (35) through a connecting part (40), the outer side surface of the middle supporting tube (36) is provided with a plurality of through-line grooves (44) in a penetrating manner, the through-line grooves (44) are annularly arrayed, a main air tube (22) is arranged inside the middle bearing (41), one end of the main air tube (22) extends to the inside of the middle supporting tube (36), a connecting three-way tube (23) is arranged at the other end of the main air tube (22), the output end of the connecting three-way tube (23) is respectively connected with a first sub-air tube (24) and a second sub-air tube (27), a first control valve (25) is arranged on the first sub-air tube (24), a second control valve (28) is arranged on the second sub-air tube (27), the main air tube (22), the connecting three-way tube (23), the first sub-air tube (24), A first control valve (25), a second air dividing pipe (27) and a second control valve (28) are all installed on one side in the fourth inner cavity (15), an air feeder (29) is further installed on one side in the fourth inner cavity (15), the other end of the second air dividing pipe (27) is connected with the output end of the air feeder (29), an exhaust fan (26) is installed on the other side in the fourth inner cavity (15), a first air dividing pipe (24) is connected with the input end of the exhaust fan (26), the internally mounted of first inner chamber (12) has singlechip (20), second inner chamber (13) is inside along the upper end temperature sensor (21) are installed to one side of level to baffle (3) lower extreme, and the output of temperature sensor (21) is connected with the input of singlechip (20), and the output of singlechip (20) is connected with the input of first control valve (25), second control valve (28), air exhauster (26) and forced draught blower (29).
2. The intelligent monitoring type high-low voltage power distribution cabinet according to claim 1, characterized in that: switch back door (6) are installed to the rear end of protecting sheathing (2), switch back door (6) inboard is provided with sealing strip (7) along vertical upper and lower both ends to baffle (4), sealing strip (7) and switch back door (6) fixed connection, switch back door (6) are gone up and are provided with air-out slotted hole (8) along the upper end of sealing strip (7), air-out slotted hole (8) and one side fourth inner chamber (15) intercommunication, the centre of protecting sheathing (2) preceding terminal surface upper end is provided with air inlet slotted hole (11), air inlet slotted hole (11) and opposite side fourth inner chamber (15) intercommunication, both sides face along second inner chamber (13) of protecting sheathing (2) are provided with ventilation slotted hole (10), equal fixed connection air filter in air-out slotted hole (8), ventilation slotted hole (10) and air inlet slotted hole (11).
3. The intelligent monitoring type high-low voltage power distribution cabinet according to claim 1, characterized in that: the upper end along the outside of middle support tube (36) on switch board installation subject (30) is provided with upper fixed disk (46), upper fixed disk (46) is fixed with middle support tube (36), lower fixed disk (47) is fixed with middle support tube (36) on switch board installation subject (30) along the lower extreme in the outside of middle support tube (36), lower fixed disk (47) is fixed with middle support tube (36), be provided with mounting panel (49) along the outside of middle support tube (36) between upper fixed disk (46) and lower fixed disk (47), mounting panel (49) and upper fixed disk (46), lower fixed disk (47) and middle support tube (36) all fixed connection, be provided with electric elements mounting hole (50) on mounting panel (49), be provided with middle sliding disk (48) along the outside of middle support tube (36) and mounting panel (49) between upper fixed disk (46) and lower fixed disk (47), the diameter of middle slip dish (48) is greater than the diameter of upper fixed disk (46) and lower fixed disk (47), and middle slip dish (48) slide along middle stay tube (36) and mounting panel (49), the both ends in middle stay tube (36) outside are provided with support connecting hole (45), middle stay tube (36) are connected through support frame (31) with middle slip dish (48), and support frame (31) pass through the fix with screw with middle stay tube (36), screw and support connecting hole (45) threaded connection.
4. The intelligent monitoring type high-low voltage power distribution cabinet according to claim 1, characterized in that: be provided with closing cap (34) along the upper end of middle stay tube (36) on middle thimble assembly (32), the centre of closing cap (34) upper end is provided with connecting pipe (33), the up end ring-type of middle stay tube (36) is fixed with embedding pole (43), terminal surface is provided with the embedded groove with embedding pole (43) corresponding position under closing cap (34), the inside of going up connecting pipe (33), closing cap (34) and middle stay tube (36) is provided with lead to inner chamber (38), lead to inner chamber (38) and lead to groove (44) intercommunication.
5. The intelligent monitoring type high-low voltage power distribution cabinet according to claim 3, characterized in that: the lower embedding plate (37) is arranged on the middle sleeve assembly (32) along the lower end of the middle supporting pipe (36), the lower embedding plate (37) is fixed inside the lower fixing plate (47), the sliding portion (39) is arranged on the outer side of the fixing plate (35), the sliding groove (42) is formed in the inner wall of the middle supporting pipe (36), and the sliding portion (39) slides along the sliding groove (42).
6. The intelligent monitoring type high-low voltage power distribution cabinet according to claim 3, characterized in that: support frame (31) include vertical support board (51), horizontal support board (52) and diagonal bracing pole (53), horizontal support board (52) are located the upper end in vertical support board (51) outside, diagonal bracing pole (53) are located between vertical support board (51) and horizontal support board (52), vertical support board (51), welded fastening between horizontal support board (52) and diagonal bracing pole (53) are adjacent, the medial surface of vertical support board (51) sets up to the arc, the upper end and the laminating of middle sliding tray (48) of horizontal support board (52).
7. The intelligent monitoring type high-low voltage power distribution cabinet according to claim 1, characterized in that: a switch front door (5) is arranged in the middle of the front end of the protective shell (2), a supporting bottom frame (9) is arranged at the lower end of the protective shell (2), a third inner cavity (14) is arranged in the protective shell (2) along the lower end of the horizontal clapboard (3), the lower end in the first inner cavity (12) is provided with a driving motor (16), the input end of the driving motor (16) is connected with the output end of the singlechip (20), a driving wheel (17) is arranged on one side in the third inner cavity (14), the driving wheel (17) is fixed with the output shaft end of a driving motor (16), a driven wheel (19) is arranged on the other side in the third inner cavity (14), the driven wheel (19) is in transmission connection with the driving wheel (17) through a transmission belt (18), and the driven wheel (19) is connected with the power distribution cabinet installation main body (30) through a shaft.
8. A monitoring method, which is implemented based on any one of claims 1 to 7, and is characterized by comprising the following steps:
the method comprises the following steps: under a normal working state, the electric elements arranged on the mounting plate (49) of the power distribution cabinet mounting main body (30) work normally, the second control valve (28) on the second air distribution pipe (27) is in a closed state, and the first control valve (25) on the first air distribution pipe (24) is in an open state;
step two: an exhaust fan (26) extracts air inside the middle support pipe (36) on the middle sleeve assembly (32) through the first branch air pipe (24) and the main air pipe (22), air inside the second inner cavity (13) is extracted due to the existence of a wire through groove (44) on the middle support pipe (36), and cold air is sucked through the ventilation groove hole (10) to circulate air inside the second inner cavity (13);
step three: when the air circulation speed in the second inner cavity (13) is not higher than the heat generation speed, the temperature sensor (21) can monitor the internal temperature rise of the second inner cavity (13), and the singlechip (20) controls the first control valve (25), the exhaust fan (26), the second control valve (28) and the blower (29) to work alternately;
step four: the exhaust fan (26) extracts hot air of the second inner cavity (13) through the first air dividing pipe (24) and the main air pipe (22), after a certain time interval, the second control valve (28) on the second air dividing pipe (27) is closed, the first control valve (25) on the first air dividing pipe (24) is opened, the air feeder (29) sends cold air into the second inner cavity (13) through the second air dividing pipe (27) and the main air pipe (22), after another time interval, the second control valve (28) on the second air dividing pipe (27) is opened, the first control valve (25) on the first air dividing pipe (24) is closed, and the exhaust fan (26) extracts hot air of the second inner cavity (13) through the first air dividing pipe (24) and the main air pipe (22);
step five: repeating the fourth step until the internal temperature of the second inner cavity (13) monitored by the temperature sensor (21) is reduced;
step six: if the step four is repeated, the internal temperature of the second inner cavity (13) monitored by the temperature sensor (21) is still kept at a high level, the driving motor (16) is started, the power distribution cabinet installation main body (30) is driven to rotate through the transmission relation among the driving wheel (17), the driving belt (18) and the driven wheel (19), and the electric elements installed on the power distribution cabinet installation main body (30) synchronously rotate;
step seven: the air in the second inner cavity (13) is disturbed under the rotating action of the power distribution cabinet mounting main body (30), the air flow flux passing through the ventilation slot holes (10) is further increased, the hot air in the second inner cavity (13) is uniformly extracted, and the sent cold air is uniformly distributed in the second inner cavity (13).
CN202110256456.4A 2021-03-09 2021-03-09 Intelligent monitoring type high-low voltage power distribution cabinet and monitoring method thereof Active CN113067255B (en)

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JP3619522B2 (en) * 1996-07-05 2005-02-09 株式会社日立製作所 Substation cooling system
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