CN219457216U

CN219457216U - Automatic deicing high-strength cable

Info

Publication number: CN219457216U
Application number: CN202320166924.3U
Authority: CN
Inventors: 李汉龙; 李永川; 林佳盛
Original assignee: Guangdong Huaxin Cable Industry Co ltd
Current assignee: Guangdong Huaxin Cable Industry Co ltd
Priority date: 2023-01-07
Filing date: 2023-01-07
Publication date: 2023-08-01
Anticipated expiration: 2033-01-07

Abstract

The utility model discloses an automatic deicing high-strength cable, which comprises an ice melting layer and a cable layer arranged in the ice melting layer, wherein an annular cavity is formed between the inner wall of the ice melting layer and the outer wall of the cable layer, a plurality of arched radiating fins and heating wires are filled in the annular cavity, two adjacent ends of the arched radiating fins are sequentially connected along the circumferential direction, the arch openings of the arched radiating fins face the circle center of the cable layer, the heating wires are arranged between the two adjacent arched radiating fins, when water vapor is attached to the cable and freezes, the heating wires are electrified and heated, the air temperature in the annular cavity is uniformly increased through the arched radiating fins, and the ice melting layer is further heated, so that ice attached to the cable in all directions is gradually melted, and the automatic deicing effect is achieved; and meanwhile, the arched radiating fins play a supporting role in the cable, so that the stress intensity of the cable is enhanced.

Description

Automatic deicing high-strength cable

Technical Field

The utility model relates to the technical field of cables, in particular to a high-strength cable capable of automatically removing ice.

Background

Along with the development of modernization, as the transmission of electric energy is environment-friendly and efficient, and long-distance transmission can be realized, electric energy occupies an increasingly important position in the development and construction of countries, so that electric power transmission projects are built by mass investments in various countries, and as social infrastructure, electric power facilities are critical to orderly operation of cities, so that the stability of a power transmission line determines the stability of urban operation, and in various guarantee links of the power transmission line, the prevention of icing of the line is a very important link. Especially in the high and cold area in northern winter or pass the line of the barren former in deep mountain, when rain and snow weather, can slowly gather the water droplet on the unsettled cable and form the ice crystal, and then form the ice hanger gradually, for the line loss of long-distance transmission of electricity, the cable itself resistance is minimum and the voltage is high, therefore the line itself generates little heat, the ice hanger on the cable can't melt fast and accumulate the growth gradually, aggravate the bearing of cable, when surpassing the cable and bear intensity, the cable will take place crooked and fracture, perhaps cause the transmission tower to collapse, the inertia of unsettled cable also can be aggravated to the ice hanger that gathers on the cable, under strong wind weather, the cable of loading is very easily blown off, lead to large tracts of land power failure. When extreme weather in a large scale, the operation guarantee of transmission line receives very big challenge, brings very big risk to the steady operation in city, among the prior art, there is to add a heating wire in the cable and heat melting ice, but because heating wire can only heat nearby cable area, heating effect is inhomogeneous, and make cable local temperature compare in other positions overheated for a long time, lead to heating area ageing in advance easily, on the contrary reduce cable strength, lead to damaged electric leakage, even fracture, therefore, how high-efficient deicing and the technique of not hurting cable are the problem that relevant technical personnel need to study.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model provides a high-strength cable capable of automatically deicing.

The technical scheme adopted for solving the technical problems is as follows:

a high strength cable for automatic deicing comprising: the ice melting layer and set up in melt the inside cable layer of ice layer, melt ice layer inner wall with form the annular cavity between the cable layer outer wall, the annular cavity intussuseption is filled with a plurality of arch fin and heating wire, along the circumferencial direction the adjacent both ends of arch fin link to each other in proper order just the arch opening of arch fin is towards the centre of a circle of cable layer, heating wire sets up in two adjacent between the arch fin.

Further, the arched radiating fins are made of aluminum materials.

Further, the thickness of the arched fins is 0.5mm.

Further, the side wall of the arched radiating fin is provided with a plurality of radiating through holes.

Further, the cable layer is internally filled with at least one cable core, and the cable core comprises an insulating outer wall, and an electrified wire and a steel wire which are filled in the cable core.

Further, the steel wire is arranged at the geometric center of the cable core.

Further, the outer wall of the steel wire is wrapped with an insulating layer.

Further, the ice melting layer is formed by two layers, the outer layer is made of insulating rubber, and the inner layer is made of metal.

The beneficial effects of the utility model are as follows: according to the utility model, the annular cavity is formed between the inner wall of the ice melting layer of the cable and the outer wall of the cable layer, the annular cavity is filled with the plurality of arched cooling fins which are sequentially connected with the two adjacent ends in the circumferential direction, the heating wire is arranged between the adjacent cooling fins, when the air temperature is reduced, water vapor is attached to the cable and the cable is frozen, the heating wire is electrified and heated, the air temperature in the annular cavity is uniformly increased through the arched cooling fins, and the ice melting layer is further heated, so that ice attached to all directions of the cable is gradually melted, the effect of automatic deicing is achieved, and meanwhile, insufficient ice melting or local aging of the cable caused by local overheating is avoided; because the arch opening of arch fin is towards the centre of a circle of cable layer, consequently, in axial direction, arch fin plays the supporting role to the cable inside, has strengthened the atress intensity of cable, avoids the cable part to frequently buckle the motion because of the exogenic action, leads to the fracture.

Drawings

The following figures are further illustrative of the utility model.

Fig. 1 is a schematic structural view of the present utility model.

Detailed Description

Reference will now be made in detail to the present embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present utility model, but not to limit the scope of the present utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Referring to fig. 1, an automatic deicing high-strength cable comprises an ice melting layer 1 and a cable layer 4 arranged in the ice melting layer 1, wherein an annular cavity is formed between the inner wall of the ice melting layer 1 and the outer wall of the cable layer 4, a plurality of arched cooling fins 2 and heating wires 3 are filled in the annular cavity, two adjacent ends of the arched cooling fins 2 are sequentially connected along the circumferential direction, the arch openings of the arched cooling fins 2 face the center of the cable layer 4, and the heating wires 3 are arranged between the two adjacent arched cooling fins 2. When the air temperature is reduced, water vapor adheres to the cable and gradually freezes, the heating wire 3 is electrified and heated, heat is gradually transferred and dispersed through the arched radiating fins 2, the air temperature in the annular cavity is uniformly increased, then the ice melting layer 1 is further heated from inside to outside, so that ice adhered to the cable is gradually melted, the effect of automatic deicing is achieved, and the ice melting layer 1 is uniformly heated by 360 degrees, so that insufficient ice melting or local aging of the cable caused by local heating is avoided; because the arch opening of the arch-shaped cooling fin 2 faces the center of the cable layer 4, the arch-shaped cooling fin 2 plays a supporting role in the cable along the axial direction, so that the stress intensity of the cable is enhanced, and the cable is prevented from being broken due to frequent bending movement caused by external force action.

Because in the material of heat conduction, the aluminum product is the material that extensively is used for radiating, and the price is cheaper than other materials that heat conduction is good simultaneously, consequently, the material of arch fin 2 is the aluminum product, for guaranteeing the heat radiating effect that heating wire 3 sent and arch fin 2 is to the support reinforcing effect of cable, a plurality of heat dissipation through-holes have been opened to the lateral wall of arch fin 2, heat dissipation through-hole can make the heat more quick the transmission is even in the annular cavity, the thickness of arch fin 2 is 0.5mm. In order to improve the heat conduction and ice melting effects of the ice melting layer 1, the ice melting layer 1 is formed by two layers, the outer layer is made of insulating rubber, electric leakage and liquid leakage of the cable are avoided, meanwhile, the effect that water vapor condenses when meeting cold is reduced, the inner layer is made of metal, and the heat of the heating wire 3 is enhanced to be quickly transferred to the outermost layer of the cable so as to quickly melt ice.

The cable layer 4 is internally filled with at least one cable core 7, and the cable core 7 comprises an insulating outer wall, and energizing wires 6 and steel wires 5 filled in the cable core 7. The steel wire 5 is arranged at the geometric center of the cable core 7. The outer wall of the steel wire 5 is wrapped with an insulating layer. Because the cable core 7 is filled in the cable layer 4 in a central symmetry manner, the steel wires 5 are also distributed in the cable core 7 in a central symmetry manner, the strength and toughness of the cable layer 4 are enhanced by the steel wires 5, the gravity and the pressure born by the cable layer 5 are uniformly dispersed, the cable layer 5 is prevented from being broken due to uneven local stress, and the cable layer 4 is effectively protected from being broken by the steel wires 5 when the cable is subjected to storm blowing. The filling ropes are filled between the cable cores 7, the filling ropes enable the cable cores 7 to be relatively stable, relative movement cannot occur, protection layers of the cable cores 7 are prevented from being broken or even being in interphase short circuit due to friction caused by long-term relative movement, and meanwhile the elasticity and the compression resistance of the cable are improved.

The present utility model is not limited to the above embodiments, but can be achieved by any similar or identical means.

Claims

1. A high strength cable for automatic deicing comprising: the novel ice melting device comprises an ice melting layer (1) and a cable layer (4) arranged in the ice melting layer (1), wherein an annular cavity is formed between the inner wall of the ice melting layer (1) and the outer wall of the cable layer (4), a plurality of arched radiating fins (2) and heating wires (3) are filled in the annular cavity, two adjacent ends of the arched radiating fins (2) are sequentially connected along the circumferential direction, the arch openings of the arched radiating fins (2) face the center of the cable layer (4), and the heating wires (3) are arranged between the two adjacent arched radiating fins (2).

2. An automatic deicing high strength cable according to claim 1, characterized in that said arched fins (2) are of aluminum material.

3. An automatic deicing high strength cable according to claim 1, characterized in that said arched fins (2) have a thickness of 0.5mm.

4. An automatic deicing high strength cable according to claim 1, characterized in that the side walls of said arched fins (2) are provided with heat dissipation through holes.

5. An automatic deicing high strength cable according to claim 1, characterized in that said cable layer (4) is internally filled with at least one cable core (7), said cable core (7) comprising an insulating outer wall and energizing conductors (6) and wires (5) filled in said cable core (7).

6. An automatic deicing high strength cable according to claim 5, characterized in that said steel wire (5) is arranged at the geometric centre of said cable core (7).

7. An automatic deicing high strength cable as claimed in claim 5, characterized in that said steel wire (5) is coated on its outer wall with an insulating layer.

8. An automatic deicing high strength cable as claimed in any one of claims 1-7, characterized in that said deicing layer (1) is two layers, the outer layer being insulating rubber and the inner layer being metal.