CN217788045U

CN217788045U - Flame-retardant all-insulated tubular bus

Info

Publication number: CN217788045U
Application number: CN202221631946.4U
Authority: CN
Inventors: 刘瑞平
Original assignee: Shanxi Ruineng Hexin Technology Co ltd
Current assignee: Shanxi Ruineng Hexin Technology Co ltd
Priority date: 2022-06-28
Filing date: 2022-06-28
Publication date: 2022-11-11
Anticipated expiration: 2032-06-28

Abstract

The utility model discloses a fire-retardant type all insulation tubular busbar, concretely relates to tubular busbar technical field, establish the core lag of restrainting on female sinle silk surface including female sinle silk and cover, the surface cover of restrainting the core lag is equipped with multilateral elastic sleeve, multilateral elastic sleeve's cross sectional shape sets up to the polygon, multilateral elastic sleeve's outside cover is equipped with first inoxidizing coating, the surface cover of first inoxidizing coating is equipped with the second inoxidizing coating. The utility model discloses a corresponding cooperation of each structure is used, and the toughness of through elastic support rib self is inconsistent to the power that the generating line core received, makes it reset, and the interference of staggering each structural deformation atress deformation simultaneously can effectual increase generating line anti deformability, prolongs its life, can be with pressure dispersion to first inoxidizing coating on, avoid multilateral elastic sleeve, restraint core lag and generating line core impaired, prolong its life.

Description

Flame-retardant type all-insulated tubular bus

Technical Field

The utility model relates to a cast generating line technical field, more specifically says, the utility model relates to a fire-retardant type all insulation cast generating line.

Background

With the rapid development of economy in China, the demand of the whole society on electric power is increasing day by day. At present, the low-voltage sides of 110kV and 220kV substations adopt 10kV and 35kV voltage grades, and the rated current of the low-voltage side wiring side of the transformer is continuously increased along with the increase of the capacity of a main transformer. The conventional rectangular bus is more and more difficult to meet the requirements of bus heating and short-circuit electrodynamic force technically and structurally, so that additional loss and increase of skin effect coefficient are caused, the reduction of current interception capability is caused, and the current distribution is uneven. Especially, when the capacity of a single main transformer is 180MVA or more, the main transformer 10kV outgoing line side has the problems of electric power and heating of a bus bar bridge, and heating caused by eddy currents induced in an electromagnetic field by a post insulator of the bus bar bridge, a steel framework, a concrete upper column near the bus bar bridge and reinforcing steel bars in a foundation. The insulated copper tube bus is used as a substitute of the rectangular bus. It has the following characteristics: the cable has the advantages of large current-carrying capacity, good insulating property, high mechanical strength, good heat dissipation, low temperature rise, low loss, high heat resistance coefficient of an insulating material, strong electric shock resistance, no environmental interference, high reliability, simple bus framework, clear arrangement, convenient installation and less maintenance workload;

patent application publication number CN 209625845U's utility model discloses a fire-retardant type all insulation tubular busbar, including the conductor pipe, the outside of conductor pipe has set gradually first silica gel layer, metal protection sleeve, polytetrafluoroethylene layer, first high pressure pyrocondensation pipe, polyester casing ply, second silica gel layer, nylon protective layer, second high pressure pyrocondensation pipe and epoxy glass cloth layer, and metal protection sleeve includes a plurality of stiffening ribs that set up in its outside circumference, and the axial evenly is provided with a plurality of pyrocondensation holes on the stiffening rib. The utility model utilizes the first silica gel layer and the metal protective sleeve to reduce the deformation of the conductor tube in the manufacturing process, so that the charge of the conductor tube is uniformly distributed on a unit area, and the electrical performance of the conductor tube is effectively ensured; the polyester cord fabric layer, the second silica gel layer and the nylon protective layer form a strength protective layer, the service life of the tubular bus is prolonged together with the reinforcing rib, and the heat dissipation performance is improved; the epoxy glass cloth layer enables the tubular bus to have high insulativity, heat resistance and moisture resistance.

But above-mentioned technical scheme has certain drawback when using, and the generating line receives the reason of external force extrusion easily and takes place deformation in long-term use, and above-mentioned technical scheme protects it through metal protective sleeve, but metal protective sleeve is a whole, and self deformability is limited, leads to the deformation adaptability of generating line to reduce.

SUMMERY OF THE UTILITY MODEL

In order to overcome prior art's above-mentioned defect, the embodiment of the utility model provides a fire-retardant type all insulation tubular busbar, use through the corresponding cooperation of each structure, the toughness of process elastic support rib self is inconsistent to the power that the generating line core received, make it reset, stagger the interference between each structural deformation atress deformation simultaneously, the anti deformability that can effectual increase generating line, prolong its life, can be with pressure dispersion to first inoxidizing coating on, avoid multilateral elastic sleeve, restraint core lag and generating line core impaired, prolong its life, with the problem of proposing in solving above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: the flame-retardant all-insulation tubular bus comprises a mother wire core and a core bundling protective sleeve sleeved on the surface of the mother wire core, wherein a polygonal elastic sleeve is sleeved on the surface of the core bundling protective sleeve, and the cross section of the polygonal elastic sleeve is polygonal;

the multi-side elastic sleeve is characterized in that a first protective layer is sleeved on the outer side of the multi-side elastic sleeve, a second protective layer is sleeved on the surface of the first protective layer, a plurality of limiting cavities are distributed on the second protective layer and along the circumference of the axial center point of the second protective layer, and elastic support ribs are arranged in the limiting cavities.

In a preferred embodiment, a first transition cavity is formed between the main wire core and the bundle core protecting sleeve, and a second transition cavity is formed between the first protecting layer and the polygonal elastic sleeve.

In a preferred embodiment, a plurality of supporting hemispherical blocks are distributed on the inner wall of the first protective layer and along the circumference of the axial center point of the first protective layer, the ends of the plurality of supporting hemispherical blocks are respectively in contact with the outer sides of the polygonal elastic sleeves, and the cross-sectional shapes of the supporting hemispherical blocks are hemispherical.

The utility model discloses a technological effect and advantage:

the utility model discloses a corresponding cooperation of each structure is used, and when the generating line core atress warp, a plurality of respectively elastic support ribs warp, and the toughness of elastic support rib self is inconsistent to the power that the generating line core received through the elasticity, makes it reset, and first transition cavity and second transition cavity can be because the generating line core extrudees with restrainting the core lag and the reason that first inoxidizing coating and multilateral elastic sleeve atress warp, protect multilateral elastic sleeve, restraint core lag and generating line core;

the interference between each structural deformation stress deformation is staggered simultaneously, the deformation resistance of the bus can be effectively increased, the service life of the bus is prolonged, the end parts of the plurality of supporting hemispherical blocks are uniformly contacted with the outer sides of the polygonal elastic sleeves respectively, so that the end parts of the supporting hemispherical blocks are contacted with the polygonal elastic sleeves when the first protective layer is deformed under stress, the pressure can be dispersed to the first protective layer through the hemispherical cross section of the supporting hemispherical blocks, the polygonal elastic sleeves are avoided, the bundle core protective sleeves and the bus cores are prevented from being damaged, and the service life of the bus is prolonged.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a side view of the overall structure of the present invention.

Fig. 3 is a cross-sectional view of the overall structure of the present invention.

The reference signs are: 1. a female wire core; 2. a core binding protective sleeve; 3. a polygonal elastic sleeve; 4. a first transition cavity; 5. a first protective layer; 6. supporting the hemispherical block; 7. a second transition cavity; 8. a second protective layer; 9. a limiting chamber; 10. elastic support ribs.

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.

The flame-retardant all-insulated tubular bus shown in the attached figures 1-3 comprises a bus core 1 and a core-binding protective sleeve 2 sleeved on the surface of the bus core 1, wherein a polygonal elastic sleeve 3 is sleeved on the surface of the core-binding protective sleeve 2, and the cross section of the polygonal elastic sleeve 3 is polygonal;

the outside cover of multilateral elastic sleeve 3 is equipped with first inoxidizing coating 5, and the surface cover of first inoxidizing coating 5 is equipped with second inoxidizing coating 8, and it has a plurality of spacing cavities 9 just to distribute along the axle center point circumference of second inoxidizing coating 8 on the second inoxidizing coating 8, all is provided with elastic support rib 10 in a plurality of spacing cavities 9.

Referring to the attached

drawings

1, 2 and 3, a first transition cavity 4 is formed between a bus core 1 and a bundling core protecting sleeve 2, a second transition cavity 7 is formed between a first protecting layer 5 and a polygonal elastic sleeve 3, the first transition cavity 4 and the second transition cavity 7 are arranged, a bus is convenient to deform under stress, the bus core 1, the bundling core protecting sleeve 2, the first protecting layer 5 and the polygonal elastic sleeve 3 are extruded and deformed mutually, the interference between the deformation stress deformation of each structure is staggered, the deformation resistance of the bus can be effectively improved, and the service life of the bus is prolonged.

Referring to fig. 1, 2 and 3, a plurality of supporting hemispherical blocks 6 are distributed on the inner wall of the first protective layer 5 and along the circumference of the axial center point of the first protective layer 5, the end portions of the supporting hemispherical blocks 6 are respectively contacted with the outer sides of the polygonal elastic sleeves 3, the cross-sectional shapes of the supporting hemispherical blocks 6 are hemispherical, and the end portions of the supporting hemispherical blocks 6 are respectively contacted with the outer sides of the polygonal elastic sleeves 3, so that when the first protective layer 5 is deformed under stress, the end portions of the supporting hemispherical blocks 6 are contacted with the polygonal elastic sleeves 3, and meanwhile, the pressure can be dispersed to the first protective layer 5 through the hemispherical cross sections of the supporting hemispherical blocks 6, the polygonal elastic sleeves 3, the bundle core protective sleeves 2 and the bus cores 1 are prevented from being damaged, and the service lives of the protective sleeves are prolonged.

The utility model discloses the theory of operation: when the bus bar manufactured by the utility model is used, when the bus bar core 1 is deformed under stress, a plurality of elastic supporting ribs 10 distributed on the second protective layer 8 along the axial center point circumference of the second protective layer 8 can be deformed, and the first transition cavity 4 and the second transition cavity 7 can be extruded due to the deformation of the bus bar core 1 and the bundle core protective sleeve 2 as well as the first protective layer 5 and the polygonal elastic sleeve 3, so as to protect the polygonal elastic sleeve 3, the bundle core protective sleeve 2 and the bus bar core 1;

stagger the interference between each structural deformation atress deformation simultaneously, can the effectual anti deformability who increases the generating line, prolong its life, and the tip of a plurality of support hemispheric blocks 6 is equallyd divide and is do not contacted with the outside of multilateral elastic sleeve 3, make first inoxidizing coating 5 when the atress deformation, the tip of supporting hemispheric block 6 contacts with multilateral elastic sleeve 3, simultaneously through the hemispherical cross-section of supporting hemispheric block 6, can be with pressure dispersion to first inoxidizing coating 5 on, avoid multilateral elastic sleeve 3, restraint core lag 2 and generating line core 1 impaired, prolong its life.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. 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 fire-retardant type all insulation tubular busbar, includes that female sinle silk (1) and cover establish the restraint core lag (2) on female sinle silk (1) surface, its characterized in that: the surface of the core binding protective sleeve (2) is sleeved with a polygonal elastic sleeve (3), and the cross section of the polygonal elastic sleeve (3) is polygonal;

the outer side of the polygonal elastic sleeve (3) is sleeved with a first protective layer (5), the surface of the first protective layer (5) is sleeved with a second protective layer (8), a plurality of limiting cavities (9) are distributed on the second protective layer (8) along the circumference of the axial center point of the second protective layer (8), and elastic supporting ribs (10) are arranged in the limiting cavities (9).

2. The flame-retardant all-insulated tubular busbar according to claim 1, wherein: a first transition cavity (4) is formed between the primary wire core (1) and the core bundling protective sleeve (2), and a second transition cavity (7) is formed between the first protective layer (5) and the polygonal elastic sleeve (3).

3. The flame-retardant all-insulated tubular busbar according to claim 1, wherein: the inner wall of the first protective layer (5) is circumferentially provided with a plurality of supporting hemispherical blocks (6) along the axial center point of the first protective layer (5), the end parts of the supporting hemispherical blocks (6) are respectively contacted with the outer sides of the polygonal elastic sleeves (3), and the cross section of each supporting hemispherical block (6) is hemispherical.