CN212322706U

CN212322706U - Fireproof nuclear power cable

Info

Publication number: CN212322706U
Application number: CN202021517035.XU
Authority: CN
Inventors: 娄震; 娄斐; 娄忠金; 李敏; 娄永树; 韩佳
Original assignee: Jiangxi Santa Cable Technology Co ltd
Current assignee: Jiangxi Santa Cable Technology Co ltd
Priority date: 2020-07-28
Filing date: 2020-07-28
Publication date: 2021-01-08
Anticipated expiration: 2030-07-28

Abstract

The utility model discloses a fire prevention nuclear power cable, including the main part sinle silk, and locate the outside low smoke and zero halogen flame retardant polyolefin oversheath of main part sinle silk, the main part sinle silk mainly by glass silk area parcel layer, glass fiber filling layer and four conductive core are constituteed, four conductive core are by the silicon rubber insulating layer, the copper tape layer, mica tape parcel layer, first polyester takes parcel layer and conductor to constitute, by interior steel tape layer that is equipped with in proper order outside to between main part sinle silk and the low smoke and zero halogen flame retardant polyolefin oversheath, the PE waterproof layer, fire-retardant layer, second polyester area parcel layer, EVA elastic layer and corrosion-resistant layer, the outside of low smoke and zero halogen flame retardant polyolefin oversheath is equipped with fire resistant coating. The utility model discloses the glass ribbon parcel layer, glass fiber filling layer, silicon rubber insulating layer, copper tape layer, first polyester tape parcel layer, steel tape layer, fire-retardant layer, second polyester tape parcel layer, fire-resistant coating etc. that set up make this nuclear power cable's fire behavior improve greatly, are favorable to the extensive use of laying of cable.

Description

Fireproof nuclear power cable

Technical Field

The utility model relates to a wire and cable technical field specifically is a fire prevention nuclear power cable.

Background

Nuclear power cables are cables dedicated to nuclear power plants. According to the planning of relevant national departments, the strategic target of 4000 ten thousand kw of installed capacity of the nuclear power production in China is realized by 2020, which means that the nuclear power development in China is warming. The nuclear power cable is an important electrical component of a nuclear power station, and the condition of the use place of the nuclear power cable is harsh, the requirement on safety is high, and the nuclear power cable not only needs to have the general characteristics of a common cable, but also needs to have specific environmental resistance, such as heat resistance, radiation resistance, LOCA (loss of coolant accident) resistance and the like.

Most of the existing nuclear power cables have the problem of poor fireproof performance, the continuous working time is short under the high-temperature environment, the service life of the cables is shortened, the maintenance cost is increased, and the cables are not beneficial to being widely paved. Therefore, it is necessary to provide a new solution to this problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fire prevention nuclear power cable to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a fire prevention nuclear power cable, includes the main part sinle silk to and locate the fire-retardant polyolefin oversheath of the outside low smoke and zero halogen of main part sinle silk, the main part sinle silk mainly comprises glass silk area parcel layer, glass fiber filling layer and four conductive core, four conductive core comprises silicon rubber insulating layer, copper tape layer, mica tape parcel layer, first polyester tape parcel layer and conductor, be equipped with steel tape layer, PE waterproof layer, fire-retardant layer, second polyester tape parcel layer, EVA elastic layer and corrosion-resistant layer from inside to outside in proper order between main part sinle silk and the fire-retardant polyolefin oversheath of low smoke and zero halogen, the outside of fire-retardant polyolefin oversheath of low smoke and zero halogen is equipped with fire-resistant coating.

Preferably, the conductor is formed by twisting a plurality of copper wires.

Preferably, a conductor filling layer is arranged outside the conductor.

Preferably, the flame retardant layer is a mineral flame retardant layer.

Preferably, the corrosion-resistant layer is formed by winding carbon fiber cloth.

Preferably, the fireproof coating is formed by uniformly coating an inorganic fireproof coating agent.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a glass silk ribbon parcel layer, glass fiber filling layer, silicon rubber insulation layer, copper tape layer, mica tape parcel layer, first polyester tape parcel layer, steel tape layer, fire-retardant layer, second polyester tape parcel layer, EVA elastic layer and fire-resistant coating that set up make this nuclear power cable's fire behavior improve greatly, and the cable lasts operating time under high temperature environment long, effectively improves the life of cable, reduces the maintenance cost simultaneously, is favorable to the extensive use of laying of cable.

Drawings

Fig. 1 is a schematic view of a first cross-sectional structure of the present invention.

Fig. 2 is the schematic diagram of the cross-sectional structure of the conductive wire core of the present invention.

Fig. 3 is a schematic diagram of a second cross-sectional structure of the present invention.

In the figure: 1. A main body wire core; 2. a low-smoke halogen-free flame-retardant polyolefin outer sheath; 3. a glass ribbon wrapping layer; 4. a glass fiber filler layer; 5. a conductive wire core; 6. a silicon rubber insulating layer; 7. a copper tape layer; 8. a mica tape wrapping layer; 9. a first polyester tape wrapping layer; 10. a conductor; 11. a steel belt layer; 12. a PE waterproof layer; 13. a flame retardant layer; 14. a second polyester tape wrapping layer; 15. an EVA elastic layer; 16. a corrosion-resistant layer; 17. a refractory coating; 18. and a conductor filling layer.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be either fixedly connected or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

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. 1-3, the utility model provides a fire prevention nuclear power cable, including main part sinle silk 1 to and locate the outside low smoke and zero halogen flame retardant polyolefin oversheath 2 of main part sinle silk 1, main part sinle silk 1 mainly comprises glass ribbon parcel layer 3, glass fiber filling layer 4 and four conductive core 5, four conductive core 5 comprises silicon rubber insulating layer 6, copper strips layer 7, mica tape parcel layer 8, first polyester tape parcel layer 9 and conductor 10, be equipped with steel strip layer 11, PE waterproof layer 12, fire-retardant layer 13, second polyester tape parcel layer 14, EVA elastic layer 15 and corrosion resistant layer 16 from inside to outside in proper order between main part sinle silk 1 and the low smoke and zero halogen flame retardant polyolefin oversheath 2, the outside of low smoke and zero halogen flame retardant polyolefin oversheath 2 is equipped with fire-resistant coating 17, the glass ribbon parcel layer 3, glass fiber filling layer 4 that set up, Silicon rubber insulating layer 6, copper strips layer 7, mica tape parcel layer 8, first polyester tape parcel layer 9, steel tape layer 11, fire-retardant layer 13, second polyester tape parcel layer 14, EVA elastic layer 15 and fire-resistant coating 17 make this nuclear power cable's fire behavior improve greatly, and the cable lasts operating time under high temperature environment long, effectively improves the life of cable, reduces the maintenance cost simultaneously, is favorable to the extensive use of laying of cable.

As the utility model discloses an optimal scheme, conductor 10 is formed for many copper wires transposition, and the current-carrying capacity of cable can be improved to conductor 10 made by many copper wires transposition, just conductor 10's outside is equipped with conductor filling layer 18, and the conductor filling layer 18 of setting can improve the electric energy transmission efficiency of cable.

As the utility model discloses an optimal scheme, fire-retardant layer 13 is the mineral substance flame retardant coating, and its flame retardant efficiency of fire-retardant layer 13 made by mineral substance refractory material is better, is favorable to improving cable fire behavior.

As the utility model discloses an optimal scheme, corrosion-resistant layer 16 forms for the carbon cloth winding, and 16 its corrosion resisting property on corrosion-resistant layer made by the carbon cloth winding are better, and have better fire behavior, are favorable to improving the life of cable.

As the preferred scheme of the utility model, the fire-resistant coating 17 is evenly paintd for inorganic fire prevention coating agent and forms, and it has the heat-proof quality good, the bonding reinforce, freeze proof, advantage such as anti-crack that fire-resistant coating 17 made by inorganic fire prevention coating agent has.

The utility model discloses when specifically making, get a plurality of copper lines earlier, make conductor 10 with its transposition, wrap up first polyester tape wrapping layer 9 with the outside of conductor 10 earlier, then set up conductor filling layer 18 to its inside, wrap up copper tape layer 7 again, wrap up silicon rubber insulating layer 6 at last, accomplish the preparation of conductive core 5, and accomplish the preparation of four conductive core 5, then near arranging four conductive core 5, the outside is wrapped up with glass silk area wrapping layer 3, and set up glass fiber filling layer 4 in conductive core 5's outside, obtain main part sinle silk 1, the outside of main part sinle silk 1 is accomplished steel tape layer 11 again in proper order, PE waterproof layer 12, fire-retardant layer 13, second polyester tape wrapping layer 14, EVA elastic layer 15, the setting of corrosion-resistant layer 16 and low smoke and zero halogen flame retardant polyolefin oversheath 2, and the setting fire-resistant coating 17 of low smoke and zero halogen flame retardant polyolefin oversheath 2, and finally obtaining the fireproof nuclear power cable.

The above description is only an example of the present invention, and the common general knowledge of the known specific structures and characteristics of the embodiments is not described herein. It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a fire prevention nuclear power cable, includes main part sinle silk (1) to and locate main part sinle silk (1) outside low smoke and zero halogen flame retardant polyolefin oversheath (2), its characterized in that: the cable is characterized in that the main body wire core (1) mainly comprises a glass ribbon wrapping layer (3), a glass fiber filling layer (4) and four conductive wire cores (5), wherein the four conductive wire cores (5) comprise a silicon rubber insulating layer (6), a copper tape layer (7), a mica tape wrapping layer (8), a first polyester tape wrapping layer (9) and a conductor (10), a steel tape layer (11), a PE waterproof layer (12), a flame-retardant layer (13), a second polyester tape wrapping layer (14), an EVA elastic layer (15) and an anti-corrosion layer (16) are sequentially arranged between the main body wire core (1) and the low-smoke halogen-free flame-retardant polyolefin outer sheath (2) from inside to outside, and a fire-retardant coating layer (17) is arranged outside the low-smoke halogen-free flame-retardant polyolefin outer sheath (2).

2. A fire-resistant nuclear power cable as claimed in claim 1, wherein: the conductor (10) is formed by stranding a plurality of copper wires.

3. A fire-resistant nuclear power cable as claimed in claim 2, wherein: and a conductor filling layer (18) is arranged outside the conductor (10).

4. A fire-resistant nuclear power cable as claimed in claim 1, wherein: the flame-retardant layer (13) is a mineral flame-retardant layer.

5. A fire-resistant nuclear power cable as claimed in claim 1, wherein: the corrosion-resistant layer (16) is formed by winding carbon fiber cloth.

6. A fire-resistant nuclear power cable as claimed in claim 1, wherein: the fireproof coating (17) is formed by uniformly coating an inorganic fireproof coating agent.