CN217281848U

CN217281848U - Small trough beam for compact 12kV airtight air insulation cabinet

Info

Publication number: CN217281848U
Application number: CN202220008477.4U
Authority: CN
Inventors: 许清辉; 阳长银; 谭耀宗
Original assignee: Zhuhai Dingguan Power Technology Co Ltd
Current assignee: Zhuhai Dingguan Power Technology Co Ltd
Priority date: 2022-01-05
Filing date: 2022-01-05
Publication date: 2022-08-23
Anticipated expiration: 2032-01-05

Abstract

The utility model discloses a little groove beam for airtight air insulated cabinet of compact 12kV, including the groove beam main part, groove beam main part outer wall cover is equipped with a plurality of baffles, groove beam main part outer wall is in adjacent two be equipped with the electrified conductor that runs through between the baffle, electrified conductor outer wall in groove beam main part outer wall cover is equipped with the protective shroud, electrified conductor outer wall is equipped with the earmuff, electrified conductor inner wall is equipped with the screw hole, groove beam main part outer wall both sides all are equipped with the curb plate. The utility model discloses a set up grooved beam main part, strengthening rib, protective shroud, curb plate, screw hole, electrified conductor and baffle, the conductor stress that can make the protective shroud obtain will be by the direct conversion into grooved beam main part atress for the grooved beam main part under conventional air insulation condition between the electrified conductor, with the grooved beam main part tip mounting panel between the dielectric strength can both satisfy the long-term live working electrical property parameter requirement of electrified conductor.

Description

Small trough beam for compact 12kV airtight air insulation cabinet

Technical Field

The utility model relates to a switching electrical equipment technical field specifically is a little trough beam for airtight air insulated cabinet of compact 12 kV.

Background

In the switch electrical equipment, insulators are used as main parts for main insulation and mechanical structure support of electric conductors, particularly in places with small space and higher insulation requirements, and the current engineering application is basically processed by a method of covering an insulating layer outside a place needing insulation processing on the surface of a beam after the beam is supported by a metal structure beam.

The method can be used when the environment in which the component structure operates is a single or pure insulating medium such as sulfur hexafluoride gas or nitrogen (also called gas-filled, gas-filled or environment-friendly cabinet), and once the pure environment is damaged or replaced by a conventional air insulating medium environment, the insulating strength of the structure is far from meeting the requirement. Because a gap which is possible to creep exists between the mounting component or the bolt and the structural beam inevitably, and the corresponding insulating property is lost because the insulating medium of the covered insulating layer is damaged due to the operating environment, and the like, the insulating condition required by the long-term operation of the whole structural component is damaged easily, so that the initial (covering insulation) treatment is ineffective, and the potential hazard of insulating accidents can also occur due to the problems of omission of the treatment process and the like.

The existing slot beam for the insulation cabinet has creepage clearance in use, and is not favorable for long-term electrified safe operation of an insulation part.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a compact 12kV airtight air insulated cabinet is with little trough beam to solve the problem that proposes in the above-mentioned background art.

In order to solve the technical problem, the utility model provides a following technical scheme: the utility model provides a little trough beam for airtight air insulated cabinet of compact 12kV, includes the trough beam main part, trough beam main part outer wall cover is equipped with a plurality of baffles, trough beam main part outer wall is in adjacent two be equipped with the electrified conductor that runs through between the baffle, electrified conductor outer wall in trough beam main part outer wall cover is equipped with the protective shroud, electrified conductor outer wall is equipped with the earmuff, electrified conductor inner wall is equipped with the screw hole, trough beam main part outer wall both sides all are equipped with the curb plate.

Further, the bottom end of the side plate is provided with a supporting plate, the top end of the side plate is provided with an upper plate, the inner wall of the upper plate is provided with a cavity, the inner wall of the cavity is symmetrically provided with slide rails, the inner wall of the cavity is provided with two clamping blocks between the slide rails, two sides of each clamping block are movably connected with the slide rails through sliding blocks, the top end of each clamping block is provided with an adjusting assembly, and the inner wall of the side plate is provided with a clamping groove.

Further, the grooved beam main part adopts resin and glass fiber cloth mixed material, grooved beam main part inner wall is equipped with U type groove, grooved beam main part inner wall is equipped with the strengthening rib, helps the grooved beam main part to obtain higher mechanical properties.

Furthermore, the strengthening rib with the notched beam main part adopts integration processing technology to connect, the retainer is the racetrack formula, the retainer with electrified conductor phase-match, the local damage of notched beam main part can be brought to the too concentrated stress of dispersion electrified conductor installation arrangement point.

Furthermore, the adjusting component comprises a connecting rod, the connecting rod is arranged at the top end of the clamping block, the connecting rod extends to the outer side of the upper plate, and a shifting block is arranged at the top end of the connecting rod, so that the adjusting is facilitated.

Furthermore, the supporting plate is connected with the bottom end of the side plate in a sliding mode, the clamping groove is matched with the clamping block, a spring is movably arranged on the outer wall of the connecting rod and on the inner wall of the cavity, and the clamping block moves.

Compared with the prior art, the utility model discloses the beneficial effect who reaches is:

1. the utility model discloses a set up grooved beam main part, strengthening rib, protective shroud, curb plate, screw hole, electrified conductor and baffle, the conductor stress that can make the protective shroud obtain will be turned into grooved beam main part atress by the directness for the grooved beam main part is under conventional air insulation condition, between the electrified conductor, with the grooved beam main part tip mounting panel between the dielectric strength can both satisfy the long-term live operation electrical property parameter requirement of electrified conductor.

2. The utility model discloses a set up curb plate, upper plate, cavity, backup pad, shifting block, draw-in groove, spring, connecting rod and fixture block, can make the curb plate drive the draw-in groove and remove left, after the inclined plane contact of draw-in groove right side and fixture block, the inclined plane of fixture block received thrust, and the fixture block receives ascending power, and inside the fixture block got into the cavity completely to simple and fast ground was installed or was dismantled the grooved beam main part.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural view of the whole of the present invention;

FIG. 2 is a side sectional view of the present invention in its entirety;

FIG. 3 is a side sectional view of a portion of the present invention;

FIG. 4 is a top sectional view of the present invention as a whole;

in the figure: 1. a channel beam main body; 2. a baffle plate; 3. an electrically charged conductor; 4. a retainer; 5. protecting ears; 6. a threaded hole; 7. a side plate; 8. a support plate; 9. an upper plate; 10. a cavity; 11. a slide rail; 12. a clamping block; 13. a slider; 14. an adjustment assembly; 15. a card slot; 16. reinforcing ribs; 17. a connecting rod; 18. shifting blocks; 19. a spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a compact 12kV small groove beam for an airtight air insulated cabinet comprises a groove beam main body 1, wherein the groove beam main body 1 is made of a mixed material of resin and glass fiber cloth, the inner wall of the groove beam main body 1 is provided with a U-shaped groove, the inner wall of the groove beam main body 1 is provided with reinforcing ribs 16, the reinforcing ribs 16 are connected with the groove beam main body 1 through an integrated processing technology, a protective ring 4 is of an annular runway type, the protective ring 4 is matched with a charged conductor 3, the stress of the installation and arrangement points of the charged conductor 3 is too concentrated to possibly cause the local damage of the groove beam main body 1, the groove beam main body 1 is assisted to obtain higher mechanical property, the outer wall of the groove beam main body 1 is sleeved with a plurality of baffles 2, the outer wall of the groove beam main body 1 is provided with the charged conductor 3 which runs through between the baffles 2, the outer wall of the charged conductor 3 is sleeved with the protective ring 4 on the outer wall of the groove beam main body 1, the outer wall of the electrified conductor 3 is provided with a protective lug 5, the inner wall of the electrified conductor 3 is provided with a threaded hole 6, and two sides of the outer wall of the groove beam main body 1 are provided with side plates 7.

The specific implementation mode is as follows: during the use, the U type end capping structural component that three-phase electric conductor was used for in the fixed cubical switchboard is to channel beam main part 1, and the structural component in this case abandons the metal construction that originally adopts U type channel-section steel to make as the material, directly adopts resin as adhesive, glass fiber cloth as the parcel enhancement layer, through thoroughly soaking, heats, shaping, the solidification forms a novel combined material in the metal mold, and its glass fiber content is up to 65%, has good mechanical properties. The voltage resistance value of the part surface at the distance of 30mm reaches 14kV/1 minute, and the dielectric constant reaches more than 4.5. In order to perfectly realize the requirement of insulating voltage tolerance between three different live conductors 3 arranged on the component, 4 baffles 2 which are integrated with the trough beam main body 1 are arranged at a distance of 75 mm from the live conductors, no gap is formed between the baffles 2 and the trough beam main body 1 during manufacturing, and the side vertical surfaces of the baffles 2 completely cover the end vertical surfaces of the trough beam main body 1, so that the trough beam main body 1 always has the baffles 2 which are arranged at intervals of 75 mm among the 3 different live conductors 3, and when the 3 live conductors 3 are connected to three-phase voltage of alternating current, a certain insulating distance and a large surface creepage distance are formed among the 3 live conductors. In order to ensure that the 3 live conductors 3 can be effectively stabilized on the beam body 1, an annular runway type guard ring 4 is arranged at the position where the live conductors are actually needed to be arranged, conductor stress obtained by the guard ring 4 can be directly converted into stress applied to the beam body, and the stress concentration at the installation arrangement point of the live conductors 3 can be dispersed, so that local damage to the beam body 1 can be caused. In order to obtain stronger mechanical property, a plurality of structures similar to the reinforcing ribs 16 are arranged on the inner wall and the side wall of the U-shaped groove of the channel beam main body 1 under the condition of the permission of the integrated processing process condition so as to assist the channel beam main body 1 to obtain higher mechanical property. The side plates 7 for fixing the end portions of the channel beam main bodies 1 are formed by secondary forming technology, and the channel beam main bodies 1 are separately fastened together by fixing bolts. When the live conductor 3 is in live operation, a lateral fixing bolt exists at the position of the protection lug 5, the extending length can directly reduce the surface creepage distance value between two different live conductors 3, and the protection lug 5 is used for eliminating the possible insulation hidden trouble. Under the conventional air insulation condition, the insulation strength between the 3 electrified conductors 3 and the mounting plate at the end part of the grooved beam main body 1 can meet the long-term electrified operation electrical performance parameter requirement of the electrified conductors.

Referring to fig. 1-3, the present invention provides a technical solution: a supporting plate 8 is arranged at the bottom end of a side plate 7, an upper plate 9 is arranged at the top end of the side plate 7, a cavity 10 is formed in the inner wall of the upper plate 9, sliding rails 11 are symmetrically arranged on the inner wall of the cavity 10, a clamping block 12 is arranged between the two sliding rails 11 on the inner wall of the cavity 10, two sides of the clamping block 12 are movably connected with the sliding rails 11 through sliding blocks 13, an adjusting assembly 14 is arranged at the top end of the clamping block 12, a clamping groove 15 is formed in the inner wall of the side plate 7, the adjusting assembly 14 comprises a connecting rod 17, the connecting rod 17 is arranged at the top end of the clamping block 12, the connecting rod 17 extends to the outer side of the upper plate 9, a shifting block 18 is arranged at the top end of the connecting rod 17 and is convenient to adjust, the supporting plate 8 is slidably connected with the bottom end of the side plate 7, the clamping groove 15 is matched with the clamping block 12, and a spring 19 is movably arranged on the outer wall of the connecting rod 17 on the inner wall of the cavity 10, the side plates 7 are pushed inwards along the supporting plate 8, the spring 19 loses the extrusion of external force, the spring 19 is opened through the self elastic force, the spring 19 is opened to drive the fixture block 12 and the supporting plate 8 to reset, and the fixture block 12 is controlled to move.

The specific implementation mode is as follows: when the device is used, the shifting block 18 is kept at the initial position shown in the figure, the side plates 7 at two sides are aligned with the support plates 8 at two sides, the support plates 8 and the upper plate 9 are both fixedly arranged on the inner wall of the insulated cabinet, the side plates 7 are pushed inwards along the support plates 8, after the side plates 7 are contacted with the inclined surfaces of the clamping blocks 12, the inclined surfaces of the clamping blocks 12 are pushed, the clamping blocks 12 are forced upwards, the clamping blocks 12 drive the sliding blocks 13 at two sides to move upwards along the sliding rails 11, the clamping blocks 12 drive the connecting rods 17 and the shifting block 18 to move upwards, the springs 19 are squeezed to contract, after the clamping blocks 12 completely enter the cavities 10, the advancing direction of the side plates 7 has no obstacles, the side plates 7 continue to move forwards, the moving side plates 7 are always positioned at the bottom ends of the clamping blocks 12 to be aligned and supported, the side plates 7 drive the clamping grooves 15 to move forwards, when the clamping grooves 15 move to the positions right below the clamping blocks 12, the bottom ends of the clamping blocks 12 lose the support of the side plates 7, make spring 19 lose the extrusion of external force, spring 19 opens through the elasticity of self, spring 19 opens and drives fixture block 12 and backup pad 8 and reset, fixture block 12 card is gone into draw-in groove 15, accomplish the fixed to curb plate 7, when needing to demolish, rotate the number of degrees of a straight angle of shifting block 18, shifting block 18 drives a rotatory straight angle of connecting rod 17, connecting rod 17 drives a straight angle of inclined plane rotation of fixture block 12, then outwards stimulate curb plate 7, curb plate 7 drives draw-in groove 15 and removes left, draw-in groove 15 right side and fixture block 12's inclined plane contact back, the inclined plane of fixture block 12 receives thrust, fixture block 12 receives ascending power, fixture block 12 gets into inside cavity 10 completely, can take out curb plate 7, thereby install or dismantle groove beam main part 1 simply swiftly.

The utility model discloses a theory of operation:

referring to the specification attached figures 1-4, the utility model discloses a set up grooved beam main part 1, strengthening rib 16, protective shroud 4, curb plate 7, screw hole 6, electrified conductor 3 and baffle 2, can make the conductor stress that protective shroud 4 obtained will be directly turned into grooved beam main part atress for grooved beam main part 1 is under conventional air insulation condition, 3 electrified conductor 3 between, and the 1 tip mounting panel of grooved beam main part between the dielectric strength can both satisfy the long-term live operation electrical property parameter requirement of electrified conductor.

Further, refer to specification attached drawing 1-3, the utility model discloses a set up curb plate 7, upper plate 9, cavity 10, backup pad 8, shifting block 18, draw-in groove 15, spring 19, connecting rod 17 and fixture block 12, can make curb plate 7 drive draw-in groove 15 and move left, draw-in groove 15 right side and fixture block 12's inclined plane contact back, fixture block 12's inclined plane receives thrust, fixture block 12 receives ascending power, inside fixture block 12 gets into cavity 10 completely to simple and fast ground is with the installation of trough beam main part 1 or dismantlement.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Furthermore, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: 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 modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a little trough beam for airtight air insulated cabinet of compact 12kV, includes trough beam main part (1), its characterized in that: the utility model discloses a novel groove beam, including groove beam main part (1), trough beam main part (1) outer wall cover is equipped with a plurality of baffles (2), groove beam main part (1) outer wall is in adjacent two be equipped with electrified conductor (3) that run through between baffle (2), electrified conductor (3) outer wall in groove beam main part (1) outer wall cover is equipped with protective shroud (4), electrified conductor (3) outer wall is equipped with earmuff (5), electrified conductor (3) inner wall is equipped with screw hole (6), groove beam main part (1) outer wall both sides all are equipped with curb plate (7).

2. The small trough beam for the compact 12kV airtight air insulated cabinet according to claim 1, wherein: curb plate (7) bottom is equipped with backup pad (8), curb plate (7) top is equipped with upper plate (9), upper plate (9) inner wall is equipped with cavity (10), cavity (10) inner wall symmetry is equipped with slide rail (11), cavity (10) inner wall is in two be equipped with fixture block (12) between slide rail (11), fixture block (12) both sides pass through slider (13) with slide rail (11) swing joint, fixture block (12) top is equipped with adjusting part (14), curb plate (7) inner wall is equipped with draw-in groove (15).

3. The small trough beam for the compact 12kV airtight air insulated cabinet according to claim 1, characterized in that: the grooved beam is characterized in that the grooved beam main body (1) is made of a mixed material of resin and glass fiber cloth, a U-shaped groove is formed in the inner wall of the grooved beam main body (1), and reinforcing ribs (16) are arranged on the inner wall of the grooved beam main body (1).

4. The small trough beam for the compact 12kV airtight air insulated cabinet according to claim 3, wherein: the reinforcing rib (16) with the grooved beam main part (1) adopts the integration processing technology to be connected, the protective shroud (4) is the ring track formula, protective shroud (4) with electrified conductor (3) phase-match.

5. The small trough beam for the compact 12kV airtight air insulated cabinet according to claim 2, wherein: adjusting part (14) include connecting rod (17), connecting rod (17) are located fixture block (12) top, connecting rod (17) extend to the upper plate (9) outside, connecting rod (17) top is equipped with shifting block (18).

6. The small trough beam for the compact 12kV airtight air insulated cabinet according to claim 5, wherein: the supporting plate (8) is connected with the bottom end of the side plate (7) in a sliding mode, the clamping groove (15) is matched with the clamping block (12), and a spring (19) is movably arranged on the outer wall of the connecting rod (17) in the inner wall of the cavity (10).