CN111092392A - Rotary prefabricated substation convenient to maintain - Google Patents
Rotary prefabricated substation convenient to maintain Download PDFInfo
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- CN111092392A CN111092392A CN201911405842.4A CN201911405842A CN111092392A CN 111092392 A CN111092392 A CN 111092392A CN 201911405842 A CN201911405842 A CN 201911405842A CN 111092392 A CN111092392 A CN 111092392A
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- heat dissipation
- fixed
- chamber
- power distribution
- box base
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B7/00—Enclosed substations, e.g. compact substations
- H02B7/06—Distribution substations, e.g. for urban network
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- 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
- H02B1/46—Boxes; Parts thereof or accessories therefor
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- 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
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Patch Boards (AREA)
Abstract
The invention discloses a rotary type prefabricated substation convenient to maintain, which comprises a distribution box body, wherein the distribution box body comprises a transformation box base, an air inlet chamber, a shell and distribution chamber units, a cylindrical heat dissipation chamber is arranged at the central position of the transformation box base, an auxiliary heat dissipation mechanism is arranged in the cylindrical heat dissipation chamber, a plurality of distribution chamber units are annularly arranged at the position of the bottom end edge of the transformation box base at equal intervals, each distribution chamber unit comprises a rectangular distribution chamber, a linkage support and a driving mechanism for fixing a distribution instrument, the air inlet chamber is arranged between every two adjacent rectangular distribution chambers, the central position of the bottom end of the transformation box base is fixed on an upper hole at the inner bottom end of the shell through a driving rotating shaft, the rotary type prefabricated substation has the advantages of small volume, heat dissipation effect, energy conservation and environmental protection, and the linkage support is inclined when the distribution instrument is conveyed out of the distribution chamber through the linkage support, the height of the power distribution instrument is greatly reduced, and maintenance workers can conveniently maintain each power distribution instrument.
Description
Technical Field
The invention relates to the technical field of transformer substations, in particular to a rotary type prefabricated transformer substation convenient to maintain.
Background
The box-type transformer substation is called a prefabricated substation or a prefabricated substation, is compact distribution equipment which integrates and installs high-voltage switch equipment, a distribution transformer and a low-voltage distribution device, namely, the functions of transformer voltage reduction, low-voltage distribution and the like are organically combined together and installed in a moistureproof, antirust, dustproof, rat-proof, fireproof, antitheft, heat-insulating, totally-enclosed and movable steel structure box, is particularly suitable for urban network construction and transformation, and is a brand-new transformer substation which is built up after a civil engineering transformer substation. The box-type transformer substation is suitable for mines, factory enterprises, oil-gas fields and wind power stations, replaces the original civil power distribution rooms and power distribution stations, becomes a novel complete set of power transformation and distribution device, and has the characteristics of small volume, small occupied area, light weight, low manufacturing cost, reliability and the like.
However, when the existing preassembled transformer substation is overhauled, various devices inside the substation need to be dismantled one by one, and then the substation can be overhauled one by one, so that trouble finding and overhauling are inconvenient.
Disclosure of Invention
The invention aims to provide a rotary type preassembled transformer substation convenient to maintain so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a rotary prefabricated substation convenient to maintain comprises a distribution box body, wherein the distribution box body comprises a transformation box base, an air inlet cavity, a shell and distribution room units, the shell is of a cylindrical structure with an upward opening, the transformation box base is of a truncated cone-shaped structure with diameters gradually increasing from top to bottom, a cylindrical heat dissipation cavity communicated with the external environment is formed in the center of the transformation box base along the height direction of the transformation box base, an auxiliary heat dissipation mechanism is arranged in the cylindrical heat dissipation cavity, a plurality of distribution room units are arranged at the bottom edge of the transformation box base at equal intervals in a surrounding mode, each distribution room unit comprises a rectangular distribution cavity perpendicular to the bottom end face of the transformation box base, a linkage support for fixing a distribution instrument and a driving mechanism for driving the linkage support to move, and one side, far away from the cylindrical heat dissipation cavity, of the rectangular distribution cavity is an inlet and an outlet of the distribution instrument, the center of the bottom end of the base of the transformer box is fixed at the inner bottom end of the shell through a driving rotating shaft, a driven gear is fixed on the driving rotating shaft, a second motor is fixed on one side of the shell close to the driving rotating shaft, and a driving gear matched with the driven gear is fixed at the output end of the second motor;
the driving mechanism comprises a screw rod horizontally fixed on the bottom end face of the rectangular power distribution chamber through a bearing, a first motor connected with one end of the screw rod through a coupler and a sliding block fixed on the screw rod and in sliding connection with the screw rod, and the first motor is fixed on the bottom end face of one side, close to the cylindrical heat dissipation cavity, of the rectangular power distribution chamber;
the linkage support comprises a sliding plate, a door opening and closing device, a fixed rod, a strip-shaped fixed plate and a power distribution instrument, wherein the sliding plate is positioned right above the screw rod and fixed on the sliding block, the door opening and closing device and the fixed rod are respectively hinged at the left side and the right side of the upper end surface of the sliding plate, the strip-shaped fixed plate is positioned between the door opening and the fixed rod and is arranged at equal intervals along the height direction of the rectangular power distribution cavity, the power distribution instrument is respectively fixed on the sliding plate and the strip-shaped fixed plate, a gear rotating shaft vertical to the screw rod is fixed at one end of the sliding plate, which is close to the cylindrical heat dissipation cavity, through a bearing, gears are symmetrically fixed at positions of the gear rotating shaft, rack plates matched with the gears are fixed on the inner wall of the rectangular power distribution cavity, the rack plates are parallel to the, the utility model discloses a transformer substation base, including switch door, bar fixed plate, rectangle distribution cavity, power transformation box base, bar fixed plate, the both ends of every bar fixed plate are provided with two on same horizontal plane, and correspond respectively at the both ends of every bar fixed plate and articulate on switch door and dead lever, and the interval between two bar fixed plates that are in on same horizontal plane is less than the width of distribution instrument, one side that rectangle distribution cavity is close to the transformer substation base is fixed with the cooling tube along the direction of height equidistant level of rectangle distribution cavity, and the one end and.
All be equipped with the air inlet cavity that the cross-section is the sector between per two adjacent rectangle distribution cavities, and rectangle distribution cavity, air inlet cavity and transformer box base integrated into one piece, rectangle distribution cavity, air inlet cavity be close to the lateral wall of transformer box base one side and with the lateral wall of transformer box base between form the round platform shape heat dissipation cavity the same with transformer box base shape, and the lateral wall evenly distributed of rectangle distribution cavity have with the through-hole of air inlet cavity intercommunication, the top of air inlet cavity is the open end, and evenly distributed has the fresh air inlet on the lateral wall that the casing corresponds the air inlet cavity, the casing lateral wall is seted up one and is opened and close the exit end of door looks adaptation, and the exit end is last to articulate to have the dodge gate.
Preferably, a row of switch button groups are fixed on one side of the shell close to the movable door, and the switch button groups are respectively and electrically connected with the first motor and the second motor.
Preferably, the auxiliary heat dissipation mechanism comprises a heat dissipation shaft vertically fixed in the cylindrical heat dissipation cavity through a bearing, and heat dissipation turbines and fan blades fixed on the heat dissipation shaft are fixed at equal intervals along the height direction of the heat dissipation shaft.
Preferably, the top end of the heat dissipation shaft vertically extends to the upper end of the transformer box base, a fan blade is fixed outside the upper end of the transformer box base, and the transformer box base is located right above the fan blade and is fixed with a rain shielding cover through a support rod.
Preferably, the length of the strip-shaped fixing plates is equal to the width of the rectangular power distribution chamber.
Compared with the prior art, the invention has the beneficial effects that:
(1) the power distribution room units comprise rectangular power distribution chambers perpendicular to the end face of the base of the transformer box, linkage supports for fixing power distribution instruments and driving mechanisms for driving the linkage supports to move.
① the driving mechanism comprises a screw rod horizontally fixed on the bottom end face of the rectangular power distribution chamber through a bearing, a first motor connected with one end of the screw rod through a coupler, and a sliding block fixed on the screw rod and connected with the screw rod in a sliding way, wherein the first motor is fixed on the bottom end face of one side of the rectangular power distribution chamber close to the cylindrical heat dissipation chamber.
② the linking support is including being located the lead screw directly over and fixing the slide on the slider, articulates switch door and the dead lever in the slide up end left and right sides respectively, is located between switch door and the dead lever and along the bar fixed plate of the equidistant arrangement of direction of height of rectangle distribution cavity and fixes the distribution instrument on slide and bar fixed plate respectively, the slide upper end is fixed with the gear shaft perpendicular with the lead screw through the bearing near the one end in cylindrical heat dissipation chamber, and the gear shaft is close to the rigidity of its both ends and is fixed with the gear, be fixed with the rack board with gear looks adaptation on the inner wall of rectangle distribution cavity, and the rack board is parallel with the lead screw, the slide is close to the one end in cylindrical heat dissipation chamber and offers the hole of stepping down with rack board looks adaptation, the dead lever is provided with two, and two dead levers are fixed at the both ends department of gear shaft, the bar fixed plate is located and is provided with two on same horizontal plane, and the both ends of every bar.
(2) It can be known from (1) that when a power distribution instrument in a rectangular power distribution chamber has a problem, a maintenance worker only needs to press a corresponding switch button, at the moment, a motor corresponding to the screw rod starts to drive the screw rod to rotate, the screw rod rotates, and simultaneously, a sliding block matched with the screw rod moves to the other end of the screw rod along one end, close to the motor, of the screw rod, so that a sliding plate fixed at the upper end of the sliding block moves towards one end, where the inlet and the outlet of the power distribution instrument are located, of the rectangular power distribution chamber, and meanwhile, under the action of a rack plate, a gear matched with the gear drives a fixed rod and a switch door to incline towards one end, where the switch door is located, away from the motor, and as two ends of a strip-shaped fixed plate are respectively and correspondingly hinged on the side walls of the fixed rod and the switch door, the whole linkage bracket is, meanwhile, when the linkage support passes through the outlet end from the rectangular power distribution chamber and moves to the outside of the shell, the distance between every two fixing plates above the sliding plate in the longitudinal direction is reduced, meanwhile, the linkage support greatly reduces the initial height of other power distribution instruments outside the power distribution instrument positioned on the sliding plate in the moving process, so that maintenance workers can conveniently maintain or arrange and inspect every power distribution instrument without disassembling the power distribution instrument, when the inspection or maintenance is finished, the motor starts to rotate in the reverse direction, the linkage support is driven to recover to the initial position in the rectangular power distribution chamber under the action of the sliding plate while rotating in the reverse direction, when the linkage support recovers to the initial position again, the distance between every two adjacent fixing rods in the longitudinal direction is far greater than the distance between every two adjacent fixing rods outside the rectangular power distribution chamber, the distance between every two adjacent distribution instruments is larger, and therefore heat dissipation of the distribution instruments in each distribution room unit is facilitated.
(3) The distribution box body comprises a transformer box base, an air inlet cavity, a shell and a distribution chamber unit, the distribution box body is of a cylindrical structure, the transformer box base is of a circular truncated cone-shaped structure with the diameter gradually increasing from top to bottom, a cylindrical heat dissipation cavity communicated with the external environment is formed in the center of the transformer box base along the height direction of the transformer box base, the air inlet cavity with the section being a sector surface is arranged between every two adjacent rectangular distribution cavities, the air inlet cavity and the transformer box base are integrally formed, the rectangular distribution cavities and the air inlet cavity are close to the side wall of one side of the transformer box base and form the circular truncated cone-shaped heat dissipation cavity with the same shape as the transformer box base with the side wall of the transformer box base, through holes communicated with the air inlet cavity are uniformly distributed on the side wall of the rectangular distribution cavity, and the top end of the air inlet cavity is an opening end, and the side wall of the shell corresponding to the air inlet cavity is uniformly distributed with air inlet holes, outside air enters the air inlet cavity through the air inlet holes, part of the air entering the air inlet cavity enters the rectangular power distribution cavity through the through holes, the other part of the air moves to the upper end port of the circular truncated cone-shaped heat dissipation cavity along the inner wall of the circular truncated cone-shaped heat dissipation cavity, the rectangular power distribution cavity is horizontally fixed with heat dissipation pipes at equal intervals along the height direction of the rectangular power distribution cavity at one side close to the base of the transformer box, one ends of the heat dissipation pipes are communicated with the cylindrical heat dissipation cavity, heat dissipation holes are uniformly distributed on the surface of the heat dissipation pipes, the air entering the rectangular power distribution cavity can only enter the heat dissipation pipes, one part of the air entering the heat dissipation pipes directly enters the cylindrical heat dissipation cavity through the heat dissipation pipes and is discharged to the outside from the upper end ports of the cylindrical heat dissipation cavity, and the other part of the air entering the heat dissipation pipes enters The air moves along the inner wall of the circular truncated cone-shaped heat dissipation chamber to the upper end port of the circular truncated cone-shaped heat dissipation chamber and simultaneously pushes against the air entering the circular truncated cone-shaped heat dissipation chamber from the heat dissipation holes on the heat dissipation pipe to be discharged to the outside from the upper end port of the circular truncated cone-shaped heat dissipation chamber, the air flowing into the heat dissipation pipe from the rectangular power distribution chamber drives the outside air along with the heat generated by a power distribution instrument in the rectangular power distribution chamber in the process of flowing out from the heat dissipation pipe, the heat dissipation effect is achieved, meanwhile, the air in the air inlet chamber moves along the inner wall of the circular truncated cone-shaped heat dissipation chamber to the upper end port of the circular truncated cone-shaped heat dissipation chamber and simultaneously pushes against the air entering the circular truncated cone-shaped heat dissipation chamber from the heat dissipation holes on the heat dissipation pipe to be discharged to the outside from the upper end port of.
(4) The auxiliary heat dissipation mechanism comprises a heat dissipation shaft vertically fixed in a cylindrical heat dissipation cavity through a bearing, heat dissipation turbines and fan blades fixed on the heat dissipation shaft, wherein the heat dissipation turbines and the fan blades are fixed at equal intervals along the height direction of the heat dissipation shaft.
(5) Can by (3) and (4), under the effect of external wind power, make the flabellum rotate, and then drive the heat dissipation axle and the heat dissipation turbine that is located above that rotates together, the heat dissipation turbine is in the pivoted while, the gas that will enter into in the radiator pipe is inhaled cylindrical heat dissipation intracavity and is discharged from the last port in cylindrical heat dissipation chamber, thereby gaseous flow accelerates, further raise radiating efficiency and radiating effect, and convert wind energy into kinetic energy drive heat dissipation axle rotation and further improve the radiating effect, make the device have energy-concerving and environment-protective advantage.
(6) In the invention, the center position of the bottom end of the base of the transformer box is fixed on the inner bottom end of a shell through a driving rotating shaft, a driven gear is fixed on the driving rotating shaft, a second motor is fixed on one side of the shell close to the driving rotating shaft, a driving gear matched with the driven gear is fixed on the output end of the second motor, air inlet holes are uniformly distributed on the side wall of the shell corresponding to an air inlet cavity, the side wall of the shell is provided with an outlet end matched with a switch door, the outlet end is hinged with a movable door, one side of the shell close to the movable door is fixed with a row of switch button groups, the switch button groups are respectively and electrically connected with the first motor and the second motor, the working states of the first motor and the second motor are respectively controlled through the switch button groups, when the second motor works, the driving gear is driven to rotate, and the, thereby drive the drive pivot and rotate, and then drive the switch door on the electricity distribution room unit on the transformer box base and rotate to the exit end with switch door looks adaptation, open the dodge gate, then a starter motor work, under the effect of motor one, the linkage support pushes away the switch door, and pass the exit end from the rectangle electricity distribution cavity with the distribution instrument and push away outside the casing, the maintenance workman only need stand and maintain or arrange the inspection to arbitrary one distribution instrument in the casing in the position that the exit end on the casing corresponds, thereby make things convenient for the maintenance workman to maintain.
(7) According to the rotary type prefabricated substation convenient to maintain, when maintenance is conducted, maintenance personnel can maintain the power distribution instrument in the prefabricated substation only by standing outside the prefabricated substation, maintenance space does not need to be arranged in the prefabricated substation, and the size of the prefabricated substation is reduced.
Therefore, the invention has the advantages of small volume, heat dissipation effect, energy conservation and environmental protection, and the linkage support is inclined while conveying the power distribution instrument out of the power distribution chamber through the linkage support, so that the initial height of the power distribution instrument at the position is greatly reduced, and the maintenance of each power distribution instrument by a maintenance worker is facilitated.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
FIG. 3 is a structural cross-sectional view of B-B in FIG. 2;
FIG. 4 is a schematic structural view of a power distribution room unit;
fig. 5 is a schematic view of the linkage stent deployed.
In the figure: 1. a substation box base; 2. a rectangular power distribution chamber; 3. a power distribution instrument; 4. an air inlet chamber; 5. an air inlet hole; 6. a rack plate; 7. opening and closing the door; 8. a cylindrical heat dissipation cavity; 9. a heat-dissipating shaft; 10. a heat dissipating turbine; 11. a first motor; 12. a gear shaft; 13. a slider; 14. a screw rod; 15. a slide plate; 16. a gear; 17. a rain cover; 18. a radiating pipe; 19. fixing the rod; 20. a strip-shaped fixing plate; 21. a fan blade; 22. a button switch group; 23. a housing; 24. a movable door; 25. driving the rotating shaft; 26. a driven gear; 27. a second motor; 28. the gears are driven.
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. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-5, an embodiment of the present invention is shown: a rotary type preassembled transformer substation convenient to maintain comprises a distribution box body, wherein the distribution box body comprises a transformer box base 1, an air inlet chamber 4, a shell 23 and distribution room units, the shell 23 is of a cylindrical structure with an upward opening, the transformer box base 1 is of a circular truncated cone-shaped structure with diameters gradually increasing from top to bottom, a cylindrical heat dissipation cavity 8 communicated with the external environment is formed in the center position of the transformer box base 1 along the height direction of the transformer box base, an auxiliary heat dissipation mechanism is arranged in the cylindrical heat dissipation cavity 8, a plurality of distribution room units are annularly arranged at equal intervals in the position of the bottom end edge of the transformer box base 1, each distribution room unit comprises a rectangular distribution chamber 2 perpendicular to the bottom end face of the transformer box base 1, a linkage support used for fixing a distribution instrument 3 and a driving mechanism used for driving the linkage support to move, and one side, far away from the cylindrical heat dissipation cavity 8, of the rectangular distribution chamber 2 is an inlet and an outlet of the distribution instrument 3, the central position of the bottom end of the transformer box base 1 is fixed on the inner bottom end of the shell 23 through a driving rotating shaft 25, a driven gear 26 is fixed on the driving rotating shaft 25, a second motor 27 is fixed on one side of the shell 23 close to the driving rotating shaft 25, and a driving gear 28 matched with the driven gear 26 is fixed at the output end of the second motor 27;
the driving mechanism comprises a screw rod 14 horizontally fixed on the bottom end face of the rectangular power distribution chamber 2 through a bearing, a first motor 11 connected with one end of the screw rod 14 through a coupler, and a sliding block 13 fixed on the screw rod 14 and connected with the screw rod in a sliding manner, wherein the first motor 11 is fixed on the bottom end face of one side, close to the cylindrical heat dissipation cavity 8, of the rectangular power distribution chamber 2;
the linkage support comprises a sliding plate 15 which is positioned right above a screw rod 14 and fixed on a sliding block 13, a switch door 7 and a fixed rod 19 which are respectively hinged at the left side and the right side of the upper end surface of the sliding plate 15, a bar-shaped fixed plate 20 which is positioned between the switch door 7 and the fixed rod 19 and is arranged at equal intervals along the height direction of a rectangular power distribution chamber 2, and power distribution instruments 3 which are respectively fixed on the sliding plate 15 and the bar-shaped fixed plate 20, one end of the upper end of the sliding plate 15, which is close to a cylindrical heat dissipation chamber 8, is fixed with a gear rotating shaft 12 which is vertical to the screw rod 14 through a bearing, the gear rotating shaft 12 is fixed with gears 16 close to the positions of the two ends of the gear rotating shaft, a rack plate 6 which is matched with the gears 16 is fixed on the inner wall of the rectangular power distribution chamber 2, the rack plate 6 is parallel to the screw rod 14, and two dead levers 19 are fixed in two extreme points department of gear shaft 12, bar fixed plate 20 is located same horizontal plane and is provided with two, and the both ends of every bar fixed plate 20 correspond respectively and articulate on switch door 7 and dead lever 19, and the interval between two bar fixed plates 20 on same horizontal plane is less than distribution instrument 3's width, rectangle distribution cavity 2 is close to one side of transformer case base 1 and is fixed with cooling tube 18 along the equidistant level of direction of height of rectangle distribution cavity 2, and the one end and the cylindrical heat dissipation chamber 8 UNICOM of cooling tube 18, the surface evenly distributed of cooling tube 18 has the louvre.
An air inlet chamber 4 with a sector-shaped section is arranged between every two adjacent rectangular power distribution chambers 2, the air inlet chambers 4 and the transformer box base 1 are integrally formed, the rectangular power distribution chambers 2 and the air inlet chambers 4 are close to the side wall of one side of the transformer box base 1 and form a circular truncated cone-shaped heat dissipation chamber with the same shape as the transformer box base 1 with the side wall of the transformer box base 1, when gas enters the air inlet chamber 4, the circular truncated cone-shaped heat dissipation chamber can enable the gas to flow to the upper end opening of the circular truncated cone-shaped heat dissipation chamber along the inclined side wall, through holes communicated with the air inlet chamber 4 are uniformly distributed on the side wall of the rectangular power distribution chamber 2, the top end of the air inlet chamber 4 is an opening end, air inlet holes 5 are uniformly distributed on the side wall of the shell 23 corresponding to the air inlet chamber 4, an outlet end matched with the switch door 7 is arranged, and a movable door 24 is hinged on the outlet end.
Furthermore, a row of switch button groups 22 are fixed on one side of the shell 23 close to the movable door 24, the switch button groups 22 are respectively and electrically connected with the first motor 11 and the second motor 27, the working states of the first motor 11 and the second motor 27 are respectively controlled through the switch button groups 22, when the second motor 27 works, the driving gear 28 is driven to rotate, the driving gear 28 and the driven gear 26 are matched with each other, so that the driving rotating shaft 25 is driven to rotate, the switch door 7 on the power distribution room unit on the transformer box base 1 is driven to rotate to an outlet end matched with the switch door 7, the movable door 24 is opened, then the first motor 11 is started to work, and under the action of the first motor 11, the linkage support pushes the switch door 7 open, and the power distribution instrument 3 is pushed out of the shell 23 from the rectangular power distribution chamber 2 through the outlet end, so that maintenance of a maintenance worker is facilitated.
Further, supplementary heat dissipation mechanism includes through the vertical heat dissipation axle 9 of fixing in cylindrical heat dissipation chamber 8 of bearing, is fixed with heat dissipation turbine 10 and fixes the flabellum 21 on heat dissipation axle 9 along the equal interval of heat dissipation axle 9 direction of height, and under the effect of external wind power as flabellum 21, drive heat dissipation axle 9 rotates for heat dissipation turbine 10 who fixes on it also rotates thereupon, thereby takes the heat in cylindrical heat dissipation chamber 8 to the ambient air along cylindrical heat dissipation chamber 8.
Further, the top end of the heat dissipation shaft 9 vertically extends to the upper end of the transformer box base 1, a fan blade 21 is fixed outside the upper end of the transformer box base 1, a rain shielding cover 17 is fixed above the transformer box base 1 and located above the fan blade 21 through a support rod, and rainwater is prevented from entering the cylindrical heat dissipation chamber 8 in rainy days.
Further, the length of the strip-shaped fixing plate 20 is equal to the width of the rectangular power distribution chamber 2, so that the switch door 7 is just matched with the entrance and exit of the power distribution instrument 3 on the rectangular power distribution chamber 2.
When the power distribution instrument 3 in the rectangular power distribution chamber 2 is in problem, a maintenance worker only needs to press the corresponding switch button group 22, at this time, the second motor 27 works and drives the driving gear 28 to rotate, the driving gear 28 and the driven gear 26 are mutually matched, so as to drive the driving rotating shaft 25 to rotate, further drive the switch door 7 on the power distribution chamber unit on the transformer box base 1 to rotate to the outlet end matched with the switch door 7, open the movable door 24, then the corresponding starting motor 11 works, the first motor 11 starts to drive the screw rod 14 to rotate, the screw rod 14 rotates, simultaneously, the slide block 13 matched with the screw rod 13 moves to the other end of the screw rod 14 along one end of the screw rod 14 close to the first motor 11, and further the slide plate 15 fixed at the upper end of the slide block 13 moves to one end of the inlet and outlet of the power distribution instrument 3 along the bottom end of the rectangular power distribution chamber, meanwhile, under the action of the rack plate 6, the gear 16 matched with the rack plate drives the fixed rod 19 and the switch door 7 to incline towards one end far away from the motor I11, and as two ends of the strip-shaped fixed plate 20 are correspondingly hinged on the side walls of the fixed rod 19 and the switch door 7 respectively, in the moving process of the whole linkage bracket, each fixed rod 19 and the power distribution instrument 3 fixed on the fixed rod are always parallel to the ground, and meanwhile, when the linkage bracket moves from the outlet end of the shell 23 to the outside of the shell 23 in the rectangular power distribution chamber 2, the distance between the fixed plates 19 above the sliding plate 15 in the longitudinal direction is reduced, and meanwhile, in the moving process of the linkage bracket, the initial height of other power distribution instruments 3 outside the power distribution instrument 3 on the sliding plate 15 is greatly reduced, so that the maintenance worker can conveniently maintain or arrange and inspect, the switch button group 22 is pressed again, the motor 11 starts to rotate in the opposite direction, the linkage support is driven to restore to the initial position in the rectangular power distribution chamber 2 under the action of the sliding plate 15 while rotating in the opposite direction, when the linkage support restores to the initial position again, the distance between every two adjacent fixing rods 20 in the longitudinal direction is far larger than the distance of the linkage support outside the rectangular power distribution chamber 2, and therefore the distance between every two adjacent power distribution instruments 3 is large, and heat dissipation of the power distribution instruments 3 in each power distribution room unit is facilitated.
The heat dissipation principle of the device is as follows: because the air inlet chamber 4 with the sector-shaped section is arranged between every two adjacent rectangular power distribution chambers 2, the air inlet holes 5 are uniformly distributed on one side of the air inlet chamber 4 far away from the transformer box base 1, the through holes communicated with the air inlet chamber 4 are uniformly distributed on the side wall of the rectangular power distribution chamber 2, the air inlet chamber 4 is close to the side wall of one side of the transformer box base 1 and forms a circular truncated cone-shaped heat dissipation chamber with the same shape as the transformer box base 1 with the side wall of the transformer box base 1, the outside air enters the air inlet chamber 4 through the air inlet holes 5 on the shell 23, the gas entering the air inlet chamber 4 partially enters the rectangular power distribution chamber 2 through the through holes, the other part of the gas moves to the upper end port of the circular truncated cone-shaped heat dissipation chamber along the inner wall of the circular truncated cone-shaped heat dissipation chamber, and because the heat dissipation pipes 18 are horizontally fixed at equal intervals on one side of the rectangular power distribution chamber 2 close to the transformer, and one end of the heat dissipation pipe 18 is communicated with the cylindrical heat dissipation cavity 8, the surface of the heat dissipation pipe 18 is uniformly provided with heat dissipation holes, the gas entering the rectangular distribution cavity 2 can only enter the heat dissipation pipe 18, one part of the gas entering the heat dissipation pipe 18 directly enters the cylindrical heat dissipation cavity 8 through the heat dissipation pipe 18 and is discharged to the outside from the upper port of the cylindrical heat dissipation cavity 8, the other part of the gas entering the heat dissipation pipe 18 enters the truncated cone-shaped heat dissipation cavity from the heat dissipation holes on the heat dissipation cavity 18 and moves towards the upper port of the truncated cone-shaped heat dissipation cavity along the inner wall of the truncated cone-shaped heat dissipation cavity by the gas in the air inlet cavity 4, and simultaneously the gas entering the truncated cone-shaped heat dissipation cavity from the heat dissipation holes on the heat dissipation pipe 18 is discharged to the outside from the upper port of the truncated cone-shaped heat dissipation cavity by pushing against the gas flowing into the heat dissipation pipe 18 from the rectangular distribution cavity 2 and then flowing out from the heat dissipation pipe 18, and in addition, under the action of external wind force, the fan blades 21 rotate to drive the heat dissipation shaft 9 and the heat dissipation turbine 10 positioned thereon to rotate together, and the heat dissipation turbine 10 sucks the gas entering the heat dissipation pipe 18 into the cylindrical heat dissipation cavity 8 and discharges the gas from the upper port of the cylindrical heat dissipation cavity 8 while rotating, thereby accelerating the flow of the gas and further improving the heat dissipation efficiency and the heat dissipation effect.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (5)
1. The utility model provides a rotation type prepackage type transformer substation convenient to maintenance, includes the block terminal body, its characterized in that: the distribution box body comprises a transformer box base (1), an air inlet cavity (4), a shell (23) and distribution room units, the shell (23) is of a cylindrical structure with an upward opening, the transformer box base (1) is of a truncated cone-shaped structure with gradually increasing diameters from top to bottom, a cylindrical heat dissipation cavity (8) communicated with the external environment is formed in the position of the center of the transformer box base (1) along the height direction of the center of the transformer box base, an auxiliary heat dissipation mechanism is arranged in the cylindrical heat dissipation cavity (8), a plurality of distribution room units are annularly arranged at equal intervals in the position of the bottom edge of the transformer box base (1), the distribution room units respectively comprise a rectangular distribution cavity (2) perpendicular to the bottom end face of the transformer box base (1), a linkage support for fixing the distribution instrument (3) and a driving mechanism for driving the linkage support to move, and one side, far away from the cylindrical heat dissipation cavity (8), of the rectangular distribution cavity (2) is an entrance and exit of the distribution instrument (3), the center of the bottom end of the transformer box base (1) is fixed to the inner bottom end of the shell (23) through a driving rotating shaft (25), a driven gear (27) is fixed to the driving rotating shaft (26), a second motor (27) is fixed to one side, close to the driving rotating shaft (25), of the shell (23), and a driving gear (28) matched with the driven gear (26) is fixed to the output end of the second motor (27);
the driving mechanism comprises a screw rod (14) horizontally fixed on the bottom end face of the rectangular power distribution chamber (2) through a bearing, a first motor (11) connected with one end of the screw rod (14) through a coupler and a sliding block (13) fixed on the screw rod (14) and in sliding connection with the screw rod, and the first motor (11) is fixed on the bottom end face of one side, close to the cylindrical heat dissipation cavity (8), of the rectangular power distribution chamber (2);
the linkage support comprises a sliding plate (15) which is positioned right above a screw rod (14) and fixed on a sliding block (13), a switch door (7) and a fixed rod (19) which are respectively hinged on the left side and the right side of the upper end face of the sliding plate (15), a bar-shaped fixed plate (20) which is positioned between the switch door (7) and the fixed rod (19) and is arranged at equal intervals along the height direction of a rectangular power distribution chamber (2), and a power distribution instrument (3) which is respectively fixed on the sliding plate (15) and the bar-shaped fixed plate (20), wherein a gear rotating shaft (12) which is vertical to the screw rod (14) is fixed at one end of the upper end of the sliding plate (15) and close to a cylindrical heat dissipation cavity (8) through a bearing, gears (16) are symmetrically fixed at positions of the gear rotating shaft (12) close to the two ends of the gear rotating shaft, rack plates (6) which are matched with the gears (16) are fixed on the, one end of the sliding plate (15) close to the cylindrical heat dissipation cavity (8) is provided with a abdication hole matched with the rack plate (6), two fixing rods (19) are arranged, two fixing rods (19) are fixed at two end points of the gear rotating shaft (12), two strip-shaped fixing plates (20) are arranged on the same horizontal plane, and both ends of each strip-shaped fixed plate (20) are respectively and correspondingly hinged on the switch door (7) and the fixed rod (19), the distance between the two strip-shaped fixed plates (20) on the same horizontal plane is less than the width of the power distribution instrument (3), radiating pipes (18) are horizontally fixed on one side of the rectangular power distribution chamber (2) close to the base (1) of the transformer box at equal intervals along the height direction of the rectangular power distribution chamber (2), one end of the radiating pipe (18) is communicated with the cylindrical radiating cavity (8), and radiating holes are uniformly distributed on the surface of the radiating pipe (18).
An air inlet chamber (4) with a sector-shaped section is arranged between every two adjacent rectangular power distribution chambers (2), and the rectangular power distribution chamber (2), the air inlet chamber (4) and the transformer box base (1) are integrally formed, the rectangular power distribution chamber (2) and the air inlet chamber (4) are close to the side wall of one side of the transformer box base (1) and form a circular truncated cone-shaped heat dissipation chamber with the same shape as the transformer box base (1) with the side wall of the transformer box base (1), through holes communicated with the air inlet chamber (4) are uniformly distributed on the side wall of the rectangular power distribution chamber (2), the top end of the air inlet chamber (4) is an open end, air inlet holes (5) are uniformly distributed on the side wall of the shell (23) corresponding to the air inlet chamber (4), an outlet end matched with the switch door (7) is formed in the side wall of the shell (23), and a movable door (24) is hinged to the outlet end.
2. A rotary easy-to-maintain preassembled transformer substation according to claim 1, characterized in that: a row of switch button groups (22) are fixed on one side of the shell (23) close to the movable door (24), and the switch button groups (22) are electrically connected with the first motor (11) and the second motor (27) respectively.
3. A rotary easy-to-maintain preassembled transformer substation according to claim 1, characterized in that: the auxiliary heat dissipation mechanism comprises a heat dissipation shaft (9) vertically fixed in a cylindrical heat dissipation cavity (8) through a bearing, and heat dissipation turbines (10) and fan blades (21) fixed on the heat dissipation shaft (9) are fixed at equal intervals along the height direction of the heat dissipation shaft (9).
4. A rotary easy-to-maintain preassembled transformer substation according to claim 3, characterized in that: the top of heat dissipation axle (9) is vertical to be extended to the upper end external fixation of transformer case base (1) and is had flabellum (21), and transformer case base (1) is located directly over flabellum (21) and is fixed with rain shade (17) through the bracing piece.
5. A rotary easy-to-maintain preassembled transformer substation according to claim 1, characterized in that: the length of the strip-shaped fixing plate (20) is equal to the width of the rectangular power distribution chamber (2).
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| CN201911405842.4A CN111092392B (en) | 2019-12-31 | 2019-12-31 | Rotary prefabricated substation convenient to maintain |
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| CN201911405842.4A CN111092392B (en) | 2019-12-31 | 2019-12-31 | Rotary prefabricated substation convenient to maintain |
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| CN112436422A (en) * | 2020-11-19 | 2021-03-02 | 浙江龙呈电力设备有限公司 | Pre-assembled underground transformer box convenient to maintain and fixing assembly thereof |
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