CN212257003U

CN212257003U - Be used for nuclear power measuring cable

Info

Publication number: CN212257003U
Application number: CN202021483558.7U
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: 2020-07-24
Filing date: 2020-07-24
Publication date: 2020-12-29
Anticipated expiration: 2030-07-24

Abstract

The utility model discloses a be used for nuclear power measuring cable, including the main part sinle silk to and locate the outside low smoke and zero halogen flame retardant polyolefin oversheath of main part sinle silk, the main part sinle silk mainly comprises glass ribbon parcel layer, glass fiber filling layer and conductive core, conductive core is by crosslinked polyethylene insulating layer, mica tape parcel layer, polyester tape parcel layer and conductor composition, by interior buffer layer, shielding layer, fire-retardant layer and the resistant irradiation layer of being equipped with in proper order outside to between main part sinle silk and the flame retardant polyolefin oversheath of low smoke and zero halogen. The utility model discloses set up glass silk ribbon parcel layer, glass fiber filling layer, mica tape parcel layer, fire-retardant layer etc. make this nuclear power measurement cable's heat-resisting, fire behavior improve greatly, and set up shielding layer and resistant irradiation layer, make this nuclear power measurement cable's shielding and resistant irradiation performance improve greatly, set up the buffer layer simultaneously, effectively improve this nuclear power measurement cable's explosion-proof ability.

Description

Be used for nuclear power measuring cable

Technical Field

The utility model relates to a wire and cable technical field specifically is a be used for nuclear power measuring 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 radiation resistance, LOCA (loss of coolant accident) resistance and the like. The nuclear power measuring cable is a main detection cable for the power output of the nuclear power station, most of the nuclear power measuring cables used in China depend on import, the imported nuclear power measuring cable products are expensive, and a large amount of foreign exchange is consumed, so that the development of the nuclear power measuring cable is a difficult and urgent task.

However, the existing nuclear power measuring cable in the domestic market has the problems of poor heat resistance, radiation resistance and explosion resistance, so that the development of the domestic nuclear power measuring cable is limited. 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 be used for nuclear power measuring cable to solve the problem that proposes among 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 be used for nuclear power measuring cable, includes the main part sinle silk to and locate the outside low smoke and zero halogen fire-retardant polyolefin oversheath of main part sinle silk, the main part sinle silk mainly comprises glass ribbon parcel layer, glass fiber filling layer and conductive core, conductive core comprises crosslinked polyethylene insulating layer, mica tape parcel layer, polyester tape parcel layer and conductor, by interior buffer layer, shielding layer, fire-retardant layer and the resistant irradiation layer of being equipped with in proper order outside to between main part sinle silk and the fire-retardant polyolefin oversheath of low smoke and zero halogen.

Preferably, the number of the conductive wire cores is 3.

Preferably, the conductor is formed by twisting tinned copper.

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

Preferably, the buffer layer comprises interior casing and shell body, be equipped with the cavity between interior casing and the shell body, be equipped with a plurality of baffles in the cavity, and a plurality of the baffle separates the cavity for little cushion chamber.

Preferably, the shielding layer is formed by weaving tinned copper wires.

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

Preferably, the irradiation-resistant layer is an EVA elastic layer.

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

the utility model discloses a set up low smoke and zero halogen flame retardant polyolefin oversheath, glass silk ribbon parcel layer, the glass fiber filling layer, mica tape parcel layer and fire-retardant layer, and fire-retardant layer is the mineral substance flame retardant coating, make this nuclear power measuring cable heat-resisting, fire behavior improves greatly, and set up shielding layer and resistant irradiation layer, resistant irradiation layer is the EVA elastic layer, make this nuclear power measuring cable's shielding and resistant irradiation performance improve greatly, set up the buffer layer simultaneously, effectively improve this nuclear power measuring cable's explosion-proof ability.

Drawings

Fig. 1 is a schematic 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 view of the internal structure of the buffer layer according to 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 crosslinked polyethylene insulating layer; 7. a mica tape wrapping layer; 8. a polyester tape wrapping layer; 9. a conductor; 10. a buffer layer; 101. an inner housing; 102. an outer housing; 103. a cavity; 104. a partition plate; 105. a buffer chamber; 11. a shielding layer; 12. a flame retardant layer; 13. an irradiation resistant layer; 14. 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 pair of be used for nuclear power measuring cable, including main part sinle silk 1 to and locate the outside fire-retardant polyolefin oversheath 2 of low smoke and zero halogen of main part sinle silk 1, main part sinle silk 1 mainly comprises glass ribbon parcel 3, glass fiber filling layer 4 and conductive core 5, conductive core 5 comprises crosslinked polyethylene insulating layer 6, mica tape parcel 7, polyester tape parcel 8 and conductor 9, be equipped with buffer layer 10, shielding layer 11, fire-retardant layer 12 and resistant irradiation layer 13 from inside to outside in proper order between main part sinle silk 1 and the fire-retardant polyolefin oversheath 2 of low smoke and zero halogen, set up fire-retardant polyolefin 2 of low smoke and zero halogen, glass ribbon parcel 3, glass fiber filling layer 4, mica tape parcel 7 and fire-retardant layer 12, and fire-retardant layer 12 is the mineral substance flame retardant layer, make this nuclear power measuring cable's heat-resisting, oversheath 2, glass ribbon parcel 3, fire behavior improves greatly, and sets up shielding layer 11 and resistant irradiation layer 13, and resistant irradiation layer 13 is the EVA elastic layer, makes this nuclear power measurement cable's shielding and resistant irradiation performance improve greatly, sets up buffer layer 10 simultaneously, effectively improves this nuclear power measurement cable's explosion-proof ability.

As the utility model discloses an optimal scheme, conductive core 5 sets up 3, improves the current-carrying capacity of cable, is favorable to the measurement to the electric energy.

As the utility model discloses a preferred scheme, conductor 9 is formed for the tinned copper transposition, and it has better electric conductivity and stability by conductor 9 that the tinned copper transposition was made, makes it more be fit for as electric energy measurement cable.

As the preferred scheme of the utility model, the outside of conductor 9 is equipped with conductor filling layer 14, and the conductor filling layer 14 of setting can improve the transmission efficiency of electric energy, is convenient for to the measurement of electric energy.

As the preferred scheme of the utility model, buffer layer 10 comprises interior casing 101 and shell body 102, be equipped with cavity 103 between interior casing 101 and the shell body 102, be equipped with a plurality of baffles 104 in the cavity 103, and be a plurality of baffle 104 separates cavity 103 for little cushion chamber 105, makes the cable have better shock-absorbing capacity through setting up cushion chamber 105, plays blast proof effect.

As the utility model discloses an optimal scheme, shielding layer 11 is woven for the tinned copper wire and is formed, and it is better to weave 11 its shielding property of shielding layer of making by the tinned copper wire.

As the utility model discloses an optimal scheme, fire-retardant layer 12 is the mineral substance flame retardant coating, and its fire behaviour of fire-retardant layer 12 made by the mineral substance flame retardant coating is better, improves this nuclear power measurement cable's heat-resisting and fire behavior greatly.

As the utility model discloses an optimal scheme, irradiation resistant layer 13 is the EVA elastic layer, and its irradiation resistance can be better on irradiation resistant layer 13 that is made by the EVA elastic layer, improves this nuclear power measurement cable's anti irradiation performance greatly.

The utility model discloses when specifically making, get a plurality of tinned wire earlier, make conductor 9 with its transposition, the outside of conductor 9 wraps up polyester tape wrapping layer 8 earlier, then to its inside conductor filling layer 14 that sets up, wrap up mica tape wrapping layer 7 again, wrap up crosslinked polyethylene insulating layer 6 at last, accomplish the preparation of conductive core 5, then near arranging 3 conductive core 5, and set up glass fiber filling layer 4 in conductive core 5's outside, and outside 3 parcels of glass tape wrapping layer, obtain main part sinle silk 1, buffer layer 10 is accomplished in proper order again to main part sinle silk 1's outside, shielding layer 11, fire-retardant layer 12, resistant irradiation layer 13 and low smoke and zero halogen flame retardant polyolefin oversheath 2's setting, obtain this a nuclear power measurement cable at last.

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 be used for nuclear power measuring 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: main part sinle silk (1) mainly comprises glass ribbon parcel layer (3), glass fiber filling layer (4) and conductive core (5), conductive core (5) comprise crosslinked polyethylene insulating layer (6), mica tape parcel layer (7), polyester tape parcel layer (8) and conductor (9), by interior buffer layer (10), shielding layer (11), fire-retardant layer (12) and resistant irradiation layer (13) of being equipped with in proper order outside to between main part sinle silk (1) and low smoke and zero halogen fire-retardant polyolefin oversheath (2).

2. A cable for nuclear power measurement according to claim 1, characterized in that: the number of the conductive wire cores (5) is 3.

3. A cable for nuclear power measurement according to claim 1, characterized in that: the conductor (9) is formed by twisting tinned copper.

4. A cable for nuclear power measurement according to claim 3, characterized in that: and a conductor filling layer (14) is arranged outside the conductor (9).

5. A cable for nuclear power measurement according to claim 1, characterized in that: buffer layer (10) comprise interior casing (101) and shell body (102), be equipped with cavity (103) between interior casing (101) and shell body (102), be equipped with a plurality of baffles (104) in cavity (103), and a plurality of baffle (104) are separated cavity (103) for little cushion chamber (105).

6. A cable for nuclear power measurement according to claim 1, characterized in that: the shielding layer (11) is formed by weaving tinned copper wires.

7. A cable for nuclear power measurement according to claim 1, characterized in that: the flame-retardant layer (12) is a mineral flame-retardant layer.

8. A cable for nuclear power measurement according to claim 1, characterized in that: the irradiation-resistant layer (13) is an EVA elastic layer.