CN114300999A - Medium-voltage full-sealed dry air insulation ring main unit - Google Patents
Medium-voltage full-sealed dry air insulation ring main unit Download PDFInfo
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- CN114300999A CN114300999A CN202111625432.8A CN202111625432A CN114300999A CN 114300999 A CN114300999 A CN 114300999A CN 202111625432 A CN202111625432 A CN 202111625432A CN 114300999 A CN114300999 A CN 114300999A
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Abstract
The utility model discloses a medium-pressure full-sealed dry air insulation ring main unit, which comprises a stainless steel single cabinet body and an insulation inflation cabinet, wherein transmission screw rods are arranged in two bearing blocks, the lower ends of the transmission screw rods are connected with the inner bottom wall of the groove through bearings, the upper ends of the transmission screw rods penetrate through the top of the stainless steel single cabinet body and are provided with motors, rectangular frame plates are vertically and symmetrically screwed between the two transmission screw rods by taking the bearing seat as the center, and four inner side walls of each rectangular frame plate are provided with lapping tables, the four lapping tables are provided with placing clapboards through bolts, the motor drives the two transmission screw rods to rotate, so that the transmission screw rods can be driven to rotate, and the two rectangular frame plates in threaded connection with the transmission screw rods can realize up-and-down movement, so that the sizes of the inner spaces of the composite switch chamber, the cable bin and the combined electrical appliance bin can be adjusted, and the combined electrical appliance bin can be adapted to be used for containing electrical appliances with different sizes.
Description
Technical Field
The utility model relates to the technical field of ring main units, in particular to a medium-voltage full-sealed dry air insulation ring main unit.
Background
The ring main unit is a group of high-voltage switch equipment which is arranged in a steel plate metal main unit body or is made into electrical equipment of an assembled interval ring main unit, and has the advantages of simple structure, small volume, low price, capability of improving power supply parameters and performance, power supply safety and the like; the ring main unit mainly comprises a gas insulation ring main unit and a solid insulation ring main unit.
The gas insulation ring main unit has compact structure, small volume and mature technology, but generally adopts sulfur hexafluoride gas as an insulation medium, the sulfur hexafluoride is listed as one of six gases with greenhouse effect, and after arc discharge, the sulfur hexafluoride gas can be decomposed into low-fluoride gas with toxicity. Therefore, the usage of sulfur hexafluoride gas is reduced and even avoided, which becomes the inevitable trend of the development of the power distribution switchgear manufacturing industry, meanwhile, the traditional ring main unit is often poor in heat dissipation effect, easily damages electronic components, low in space utilization rate and incapable of being adapted to electric appliances of different sizes for placement.
According to novel gaseous insulating totally enclosed looped netowrk cabinet of environmental protection that patent CN202022740687.6 provided, including looped netowrk cabinet main part, wiring room, division board, mechanism room, ventilating board, dehumidifier, upper cabinet door, lower cabinet door and gauge adjustment device, the looped netowrk cabinet main part is cavity structure setting, the wiring room is located inside the looped netowrk cabinet main part, central department in the looped netowrk cabinet main part is located to the division board level, the mechanism room is located on the division board, the looped netowrk cabinet main part bottom is located to the ventilating board, dehumidifier one end is connected with the wiring room, the dehumidifier other end is connected with the ventilating board, looped netowrk cabinet main part lateral wall upper end is located to the upper cabinet door, looped netowrk cabinet lateral wall lower extreme is located to the lower cabinet door, gauge adjustment device locates on the division board. The utility model belongs to the technical field of ring main units, and particularly relates to a mechanism for adjusting the distance in a mechanism room through a distance adjusting assembly.
Above-mentioned case can only adjust the indoor gauge of mechanism, the inside unable regulation in space of other cavities, and it is rotatory to drive the rotary gear through servo motor, rotary gear is connected with the rack toothing, so can drive the lift post and go up and down, when the lift post goes up and down, alright make the elevating platform go up and down through the connecting block, the elevating platform passes through the slider and slides on the slide rail, the realization is adjusted the indoor gauge of mechanism, after adjusting, do not set up locking device, the position of elevating platform easily changes, so design middling pressure totally enclosed dry air insulation looped netowrk cabinet, it is very necessary to solve above-mentioned problem.
Disclosure of Invention
The utility model aims to provide a medium-voltage full-sealed dry air insulation ring main unit, which can adjust the sizes of the inner spaces of a composite switch chamber, a cable chamber and a combined electrical appliance chamber and solve the problem that the inner spaces of other chambers can not be adjusted.
In order to achieve the purpose, the utility model provides the following technical scheme: medium-pressure full-sealed dry air insulation ring main unit, including the stainless steel single cabinet body and insulating inflatable cabinet, insulating inflatable cabinet installs on the rear side step of the stainless steel single cabinet body, two inner wall symmetries of the stainless steel single cabinet body are equipped with the fluting, two the bearing frame is all installed at the notched middle part, installs the transmission lead screw in two bearing frames, the lower extreme of transmission lead screw passes through the bearing and is connected with the interior diaphragma of fluting, the top of the stainless steel single cabinet body is run through and installs the motor in the upper end of transmission lead screw, and the screw thread direction on the transmission lead screw of bearing frame upper end is left-handed screw, and the screw thread direction on the transmission lead screw of bearing frame lower extreme is right-handed screw, the transmission lead screw is equipped with two, and it has rectangular frame plate to use the bearing frame as central longitudinal symmetry spiro union, and the overlap joint platform has all been seted up to four inside walls of every rectangular frame plate, the four lapping tables are provided with placing partition plates through bolts.
Optionally, every place four corner positions department in top of baffle and all be equipped with the screw thread post, cup jointed the L shape backup pad between the screw thread post that aligns from front to back, every top of placing the baffle is installed two L shape backup pads, and the spiro union has the lock nut who is used for fixing the L shape backup pad on every screw thread post, and the inside wall front and back symmetry of every L shape backup pad is equipped with the back shaft, be equipped with the gyro wheel on the back shaft.
Optionally, cylinders are symmetrically arranged on the front side wall and the rear side wall of each rectangular frame plate in a left-right mode, a plurality of limiting circular holes are formed in the two side walls of each groove in an equidistant mode, and telescopic rods of the cylinders are inserted into the limiting circular holes.
Optionally, the rectangular frame plate divides the inner cavity of the stainless steel single cabinet body into three chambers, the chamber above the upper layer placing partition plate is a composite switch chamber, the chamber below the lower layer placing partition plate is a cable chamber, and the two layers of chambers between the partition plates are combined electrical appliance chambers.
Optionally, two inner walls of cable storehouse are installed through the bolt and are erected the steel sheet, erect the equidistant mounting hole of having seted up of steel sheet, the rear side is equipped with the horizontal steel sheet of cable support between two perpendicular steel sheets, the positive both ends of the horizontal steel sheet of cable support all are equipped with the screw-inserted post that runs through the mounting hole, the spiro union has the lock nut who is used for fixing the horizontal steel sheet of cable support on the screw-inserted post, also equidistance is equipped with a plurality of mounting holes on the horizontal steel sheet of cable support.
Optionally, the front in combined switch room, cable storehouse and combined electrical apparatus storehouse all articulates there is the cabinet door, the opening has been seted up on the cabinet door in cable storehouse, all be equipped with the installation piece on four open-ended interior corners, and install the heat dissipation window through the screw between four installation pieces.
Optionally, three bus expansion ports are equidistantly formed in the side wall of the insulated gas-filled cabinet, a plurality of internal screw holes are uniformly formed in the outer wall of each bus expansion port in a surrounding mode, a bus connector is inserted into each bus expansion port, a sealing gasket in contact with the outer wall of each bus expansion port is sleeved on each bus connector, and a plurality of fastening screws in threaded connection with the internal screw holes are arranged on each bus connector in a surrounding mode.
Optionally, two guide slide rails located below the bus expansion port are installed on one side wall of the insulated inflation cabinet, and a guide chute matched with the guide slide rails for use is installed on the other side wall of the insulated inflation cabinet.
Compared with the prior art, the utility model has the following beneficial effects:
first, the utility model is a totally enclosed dry air insulation ring main unit of the medium voltage, drive two drive screws to rotate through starting the electric motor separately, so can drive the drive screw to rotate, so can realize the work of moving up and down with two rectangular frame plates that the drive screw is screwed on, because the drive screw is regarded as the centre with the bearing bracket, there are left-handed screw threads on the outer wall of the upper end, there are right-handed screw threads on the outer wall of the lower end, so the moving direction of two rectangular frame plates is opposite, one moves upwards, another moves downwards, so can adjust the size of the inner space of the compound switch room, cable storehouse and combined electrical apparatus storehouse, thus can adapt to and adorn the electrical apparatus component of different size.
The arrangement of the placing partition plate and the idler wheels is convenient for pushing the assembled switch assembly and the assembled combined electrical appliance into the combined switch chamber and the combined electrical appliance bin, so that the assembled switch assembly and the assembled combined electrical appliance bin are integrally assembled and then are arranged in the stainless steel single cabinet body, and later maintenance is facilitated.
The bus expansion port and the bus connector are used for installing the expansion bus, so that two stainless steel single cabinet bodies can be conveniently assembled together, and the arrangement of the inner screw hole is matched with the use of a fastening screw for realizing the installation of the bus connector.
And fourthly, the guide sliding groove and the guide sliding rail are matched for use, so that the two stainless steel single cabinet bodies are more stably assembled.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention
FIG. 3 is a schematic side view of the present invention;
FIG. 4 is a schematic top view of the rectangular frame plate and the partition plate according to the present invention;
FIG. 5 is a schematic view of the connection structure of the insulated gas-filled cabinet of the present invention;
FIG. 6 is a schematic structural diagram of the stainless steel single cabinet in side view;
fig. 7 is an enlarged schematic view of the utility model at a in fig. 1.
In the figure: 1-stainless steel single cabinet body, 2-insulating gas-filled cabinet, 3-slotting, 4-bearing seat, 5-transmission screw rod, 6-motor, 7-rectangular frame plate, 8-lapping table, 9-placing partition plate, 10-threaded column, 11-L-shaped supporting plate, 12-supporting shaft, 13-roller, 14-limiting round hole, 15-cylinder and 16-composite switch chamber; 17-guide sliding grooves, 18-cable bins, 19-combined electrical appliance bins, 20-vertical steel plates, 21-bus expansion ports, 22-cable supporting transverse steel plates, 23-cabinet doors, 24-openings, 25-mounting blocks, 26-heat dissipation windows, 27-bus expansion ports, 28-internal screw holes, 29-bus connectors, 30-sealing gaskets and 31-guide sliding rails.
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.
The first embodiment is as follows:
referring to fig. 1 to 7, the present embodiment provides a medium-voltage full-sealed dry air insulation ring main unit, which includes a stainless steel single cabinet body 1 and an insulation gas-filled cabinet 2, wherein the insulation gas-filled cabinet 2 is installed on a rear side step of the stainless steel single cabinet body 1, two inner walls of the stainless steel single cabinet body 1 are symmetrically provided with slots 3, the middle portions of the two slots 3 are respectively provided with a bearing seat 4, a transmission screw rod 5 is installed in the two bearing seats 4, the lower end of the transmission screw rod 5 is connected with an inner bottom wall of the slot 3 through a bearing, the upper end of the transmission screw rod 5 penetrates through the top of the stainless steel single cabinet body 1 and is provided with a motor 6, the screw thread direction on the transmission screw rod 5 at the upper end of the bearing seat 4 is a left-handed screw thread, the screw thread direction on the transmission screw rod 5 at the lower end of the bearing seat 4 is a right-handed screw thread, the transmission screw rods 5 are provided with two transmission screw rods 5, and a rectangular frame plate 7 is vertically symmetrically screwed between the two transmission screw rods 5 with the bearing seats 4 as a center, and four inside walls of every rectangle deckle board 7 have all been seted up overlap joint platform 8, have through the bolt mounting place baffle 9 on four overlap joint platforms 8, and are two-layer rectangle deckle board 7 has divided into three cavity to the inside cavity of the single cabinet body of stainless steel 1, and the cavity that baffle 9 top was placed to the upper strata is composite switch room 16, and the cavity that baffle 9 below was placed to the lower floor is cable compartment 18, and the cavity that two-layer between placing baffle 9 is combination electrical apparatus storehouse 19.
It is specific, every place four corner position departments in top of baffle 9 and all be equipped with screw thread post 10, cup jointed L shape backup pad 11 between the screw thread post 10 of aligning around, every top of placing baffle 9 installs two L shape backup pads 11, and the spiro union has the lock nut who is used for fixing L shape backup pad 11 on every screw thread post 10, and the symmetry is equipped with back shaft 12 around the inside wall of every L shape backup pad 11, be equipped with gyro wheel 13 on the back shaft 12, through cup jointing on four screw thread posts 10 and place baffle 9 and lock with lock nut, conveniently install on rectangle frame board 7 placing baffle 9, through placing baffle 9 that sets up be used for supporting switch subassembly and combined electrical apparatus.
Specifically, every cylinder 15 is installed to lateral wall bilateral symmetry around the rectangle frame board 7, a plurality of spacing round holes 14 have been seted up to the both sides wall equidistance of fluting 3, cylinder 15's telescopic link inserts to spacing round hole 14 in, after the position control of rectangle frame board 7 was good, drives its telescopic link through starting cylinder 15 and inserts to spacing round hole 14 in, and then realizes the fixed work of rectangle frame board 7, avoids threaded connection the phenomenon of smooth silk to appear.
Specifically, two inner walls of cable storehouse 18 are installed through the bolt and are erected steel sheet 20, erect equidistant mounting hole 21 of having seted up on the steel sheet 20, the rear side is equipped with the horizontal steel sheet 22 of cable support between two perpendicular steel sheets 20, the positive both ends of the horizontal steel sheet 22 of cable support all are equipped with the screw thread post of inserting that runs through mounting hole 21, the spiro union has the lock nut who is used for fixing the horizontal steel sheet 22 of cable support on the screw thread post of inserting, also equidistance be equipped with a plurality of mounting holes 21 on the horizontal steel sheet 22 of cable support, erect setting up of the horizontal steel sheet 20 of steel sheet 20, cable support 22 and mounting hole 21 and be convenient for the cable to support fixed work.
Specifically, the front of combined switch room 16, cable chamber 18 and combined electrical apparatus storehouse 19 all articulates there is cabinet door 23, opening 24 has been seted up on the cabinet door 23 in cable chamber 18, all be equipped with installation piece 25 on four interior corners of opening 24, and install heat dissipation window 26 through the screw between four installation pieces 25, be convenient for discharge the heat in cable chamber 18 through the heat dissipation window 26 that sets up, lead to the use of the installation piece 25 cooperation screw that sets up, conveniently dismantle the clearance work to heat dissipation window 26.
Specifically, three bus expansion ports 27 are equidistantly arranged on the side wall of the insulated gas-filled cabinet 2, and the outer wall of each bus bar expansion port 27 is uniformly provided with a plurality of internal screw holes 28 in a surrounding way, a bus bar connector 29 is inserted in each bus bar expansion port 27, a sealing gasket 30 contacted with the outer wall of the bus bar expansion port 27 is sleeved on the bus bar connector 29, a plurality of fastening screws which are in threaded connection with the inner screw holes 28 are arranged on the bus bar connector 29 in a surrounding manner, by inserting the busbar connector 29 into the busbar expansion 27, and then screwing a plurality of fastening screws into the internal screw holes 28, thereby, the installation of the bus bar connector 29 is realized, the bus bar connector 29 is arranged for realizing the expansion connection of the bus bar, and then make things convenient for the work of assembling of two stainless steel single cabinet bodies 1, the phenomenon of connecting the position and taking place to leak gas is avoided in the setting of sealed pad 30, has further improved the insulating effect of insulating gas-filled cabinet 2.
The second embodiment is different from the first embodiment in that:
specifically, two guide slide rails 31 that are located generating line extension port 27 below are installed to a lateral wall of insulating cabinet 2 of aerifing, another lateral wall of insulating cabinet 2 of aerifing is installed and is cooperateed the direction spout 17 that uses with guide slide rail 31, and the cooperation of direction spout 17 and guide slide rail 31 is used for the equipment of two stainless steel list cabinet bodies 1 is more firm, and is convenient for aerify two insulations cabinet 2 butt joints together.
The working principle is as follows: this middling pressure totally enclosed dry air insulation looped netowrk cabinet, drive two transmission lead screw 5 through starting motor 6 respectively and rotate, so can drive transmission lead screw 5 and rotate, so can realize reciprocating work with two rectangle deckle boards 7 of transmission lead screw 5 looks spiro union, because use bearing frame 4 as the center on the transmission lead screw 5, be equipped with the left-handed screw on the upper end outer wall, be equipped with the right-handed screw on the lower extreme outer wall, so the moving direction of two rectangle deckle boards 7 is opposite, an upward movement, another then moves down, so the size of adjustable combination switch room 16, the inside space of cable storehouse 18 and combined electrical apparatus storehouse 19, thereby can adapt to the electrical components of dress equidimension not.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. Well voltage totally enclosed dry air insulation looped netowrk cabinet, aerify cabinet (2), its characterized in that including stainless steel single cabinet body (1) and insulation: the insulating gas-filled cabinet (2) is installed on the rear side step of the stainless steel single cabinet body (1), two inner wall symmetries of the stainless steel single cabinet body (1) are equipped with fluting (3), two bearing seats (4) are all installed at the middle part of fluting (3), install transmission lead screw (5) in two bearing seats (4), the lower extreme of transmission lead screw (5) is connected with the inner bottom wall of fluting (3) through the bearing, the top of the stainless steel single cabinet body (1) is run through and motor (6) is installed to the upper end of transmission lead screw (5), the screw thread handedness on transmission lead screw (5) on bearing seat (4) upper end is left-handed thread, the screw thread handedness on transmission lead screw (5) on bearing seat (4) lower extreme is right-handed thread, transmission lead screw (5) are equipped with two, and the bearing seat (4) has rectangular frame board (7) as central up-down symmetry spiro union between two transmission lead screws (5), and four inside walls of each rectangular frame plate (7) are provided with overlapping platforms (8), and the four overlapping platforms (8) are provided with placing partition plates (9) through bolts.
2. The medium-voltage totally-enclosed dry air insulation ring main unit according to claim 1, wherein: every four corner position departments in top of placing baffle (9) all are equipped with screw thread post (10), have cup jointed L shape backup pad (11) between screw thread post (10) that the front and back was aligned, and two L shape backup pads (11) are installed at every top of placing baffle (9), and the spiro union has the lock nut who is used for fixing L shape backup pad (11) on every screw thread post (10), and the symmetry is equipped with back shaft (12) around the inside wall of every L shape backup pad (11), be equipped with gyro wheel (13) on back shaft (12).
3. The medium-voltage totally-enclosed dry air insulation ring main unit according to claim 2, wherein: every cylinder (15) are installed to the front and back lateral wall bilateral symmetry of rectangle frame board (7), a plurality of spacing round holes (14) have been seted up to the both sides wall equidistance of fluting (3), the telescopic link of cylinder (15) inserts in spacing round hole (14).
4. The medium-pressure totally enclosed dry air insulated ring main unit according to any one of claims 1 to 3, wherein: two-layer rectangle frame plate (7) has divided into three cavity to the inside cavity of the stainless steel single cabinet body (1), and the cavity that baffle (9) top was placed to the upper strata is composite switch room (16), and the cavity that baffle (9) below was placed to the lower floor is cable compartment (18), and the cavity that two-layer between placing baffle (9) is combined electrical apparatus storehouse (19).
5. The medium-voltage full-sealed dry air insulation ring main unit according to claim 4, wherein: two inner walls of cable storehouse (18) are installed through the bolt and are erected steel sheet (20), erect steel sheet (20) equidistance and seted up mounting hole (21), the rear side is equipped with horizontal steel sheet (22) of cable support between two perpendicular steel sheets (20), the positive both ends of the horizontal steel sheet (22) of cable support all are equipped with the screw thread post of inserting that runs through mounting hole (21), the spiro union has the lock nut who is used for fixing the horizontal steel sheet (22) of cable support on the screw thread post of inserting, also equidistance is equipped with a plurality of mounting holes (21) on the horizontal steel sheet (22) of cable support.
6. The medium-voltage full-sealed dry air insulation ring main unit according to claim 4, wherein: the front of combination switch room (16), cable storehouse (18) and combined electrical apparatus storehouse (19) all articulates there is cabinet door (23), open-ended (24) have been seted up on cabinet door (23) in cable storehouse (18), all be equipped with on four interior corners of opening (24) installation piece (25), and install heat dissipation window (26) through the screw between four installation pieces (25).
7. The medium-voltage totally-enclosed dry air insulation ring main unit according to claim 1, wherein: three generating line expansion mouth (27) have been seted up to the lateral wall equidistance of insulating gas-filled cabinet (2), and the outer wall of every generating line expansion mouth (27) evenly encircles and be equipped with a plurality of inside screw hole (28), it has bus connector (29) to peg graft in generating line expansion mouth (27), the sealed pad (30) that has cup jointed generating line expansion mouth (27) outer wall and contact on bus connector (29), what encircle on bus connector (29) is equipped with a plurality of and the fastening screw of inside screw hole (28) looks spiro union.
8. The medium-voltage totally-enclosed dry air insulation ring main unit according to claim 1, wherein: two guide slide rails (31) below the bus expansion port (27) are installed on one side wall of the insulated inflating cabinet (2), and a guide sliding groove (17) matched with the guide slide rails (31) for use is installed on the other side wall of the insulated inflating cabinet (2).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111625432.8A CN114300999A (en) | 2021-12-28 | 2021-12-28 | Medium-voltage full-sealed dry air insulation ring main unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111625432.8A CN114300999A (en) | 2021-12-28 | 2021-12-28 | Medium-voltage full-sealed dry air insulation ring main unit |
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| CN114300999A true CN114300999A (en) | 2022-04-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117374794A (en) * | 2023-10-12 | 2024-01-09 | 江苏伟拓力电力工程技术有限公司 | Extensible ring main unit |
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| CN212392494U (en) * | 2020-05-29 | 2021-01-22 | 沈阳添瀛通用设备有限公司 | High-voltage pneumatic protection device for mining |
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| CN214506320U (en) * | 2021-01-21 | 2021-10-26 | 高宁州 | SF6 looped netowrk cabinet |
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