CN213583165U

CN213583165U - Ultraviolet ray irradiation cross-linking type control cable for nuclear power station

Info

Publication number: CN213583165U
Application number: CN202023087120.XU
Authority: CN
Inventors: 邓小武
Original assignee: Dongguan Zixin Photoelectric Technology Co ltd
Current assignee: Dongguan Zixin Photoelectric Technology Co ltd
Priority date: 2020-12-21
Filing date: 2020-12-21
Publication date: 2021-06-29
Anticipated expiration: 2030-12-21

Abstract

The utility model discloses an ultraviolet ray irradiation cross-linking type control cable for nuclear power station, which comprises a conductor, an insulating layer, an anti-twisting mechanism, an inner protective layer, a shielding layer and an outer sheath, wherein the conductor is formed by twisting a plurality of tinned copper wires, the insulating layer is arranged into a double-layer composite structure, the insulating layer is arranged outside the conductor, the anti-twisting mechanism is arranged outside the insulating layer, the anti-twisting mechanism is provided with a triangular support frame and elastic rubber, the outer side of the anti-twisting mechanism is provided with the inner protective layer, the shielding layer is arranged outside the inner protective layer, the shielding layer is formed by weaving a plurality of tinned copper wires, the outer sheath is arranged outside the shielding layer, the outer sheath is arranged outside the ultraviolet ray irradiation cross-linking low smoke halogen-free flame retardant material, the cable of the utility model has simple structure and compact structure, and has excellent performances, and the anti-twisting mechanism is arranged, so that the service life of the cable is longer, and the like, and the cable is particularly suitable for being used in nuclear power stations.

Description

Ultraviolet ray irradiation cross-linking type control cable for nuclear power station

Technical Field

The utility model relates to a cable manufacturing technical field specifically is a control cable for ultraviolet ray irradiation cross-linking type nuclear power station.

Background

The cable for the nuclear power station has very high quality and safety requirements, the insulating wire core of the cable also needs to have flame retardant performance on the premise of ensuring high electrical performance, the insulating and sheath materials of the cable need to be low-smoke, non-toxic, flame-retardant and non-corrosive materials, the cable needs to have radiation resistance, and the cable still has the service life of more than 60 years even if the cable continuously operates at the highest working temperature of a conductor or is radiated under normal working conditions.

However, the conventional control cable structure for a nuclear power plant has the following disadvantages:

1. the inner and outer layer insulation and the outer sheath of the traditional control cable for the nuclear power station are made of electron beam irradiation crosslinking materials, so that the production process is more, and the production cost is higher.

2. The traditional control cable for the nuclear power station is not internally provided with an anti-twisting mechanism, and when the cable is subjected to twisting force, the conductor inside the cable is easily damaged.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an ultraviolet ray irradiation cross-linking type control cable for nuclear power station 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 an ultraviolet ray light irradiation crosslinked type control cable for nuclear power station, includes conductor, insulating layer, prevents turning round mechanism, interior sheath, shielding layer, oversheath, the conductor comprises many tinned copper wires transposition, the insulating layer sets up to double-deck composite construction, the insulating layer sets up the outside at the conductor, prevent turning round the outside that the mechanism set up at the insulating layer, it is provided with triangular supports frame, elastic rubber to prevent turning round the mechanism, the outside of turning round the mechanism is provided with interior sheath, the outside of sheath including the shielding layer sets up, the shielding layer is woven through several tinned copper wires and is formed, the outside at the shielding layer is set up to the oversheath, the oversheath sets up to ultraviolet ray irradiation crosslinked low smoke and zero halogen flame retardant material.

Preferably, the insulating layer is provided with inner insulating layer and outer insulating layer, inner insulating layer sets up the inside at outer insulating layer, and inner insulating layer wraps up in the outside of conductor closely, inner insulating layer sets up to ultraviolet light irradiation crosslinked polyethylene material, outer insulating layer sets up to ultraviolet light irradiation crosslinked low smoke and zero halogen flame retardant material, through setting up the insulating layer to bilayer structure to set up inner insulating layer to ultraviolet light irradiation crosslinked polyethylene material, outer insulating layer sets up to ultraviolet light irradiation crosslinked low smoke and zero halogen flame retardant material, thereby makes the cable have good electrical property, mechanical properties, heat resistance and flame retardant property, makes the cable both have insulating nature and have fire retardant property.

Preferably, the triangular support frame is arranged outside the insulating layer, a filler is arranged in a gap between the triangular support frame and the insulating layer, the filler is made of glass fiber materials, and the cable has better insulativity, heat resistance, corrosion resistance and mechanical strength through the glass fiber.

Preferably, the elastic rubber sets up the outer wall at the triangular support frame, the elastic rubber is provided with threely, the elastic rubber is located the clearance department between interior sheath and the triangular support frame, interior sheath sets up to there being no halogen flame retardant material, through setting up the conductor in the inside of triangular support frame to the clearance of triangular support frame and interior sheath is provided with elastic rubber, thereby when making the cable receive torsion, thereby the elastic rubber compression is protected the conductor in the triangular support frame and is prevented spraining.

Preferably, the one end of oversheath is provided with the opening, both ends are provided with the anti-drop ring around the oversheath, the anti-drop ring is located the open-ended outside, the anti-drop ring sets up to silicon rubber material, and the outer wall of oversheath is provided with a plurality of reflection of light strips, conveniently dismantles through the opening of oversheath one side to the anti-drop layer through both sides is fixed the opening, reflects the sunlight through a plurality of reflection of light strips that the oversheath outside set up, thereby reduces the temperature of cable.

The utility model provides an ultraviolet ray light irradiation cross-linking type control cable for nuclear power station possesses following beneficial effect:

(1) the utility model discloses a set up the inner insulating layer into ultraviolet light irradiation crosslinked polyethylene material, and the outer insulating layer sets up to ultraviolet light irradiation crosslinked low smoke and zero halogen flame retardant material, thereby make the cable have good electrical property, mechanical properties, heat resistance and flame retardant property, make the cable both have insulating nature and have flame retardant property, and be provided with the filler in the space department of triangular supports frame and insulating layer, set up the filler into glass fiber material, make the cable have better insulating nature, the heat resistance, corrosion resistance and mechanical strength, thereby make the cable with low costs, the performance is better.

(2) The utility model discloses a be provided with triangular supports frame and elastic rubber outside the insulating layer, when the cable received torsion, thereby the elastic rubber compression protects the conductor in the triangular supports frame and prevents spraining, and the conductor setting is in the triangular supports frame to the structure of sheath is more stable including making the conductor.

Drawings

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

FIG. 2 is a side cross-sectional view of the present invention;

fig. 3 is a side view of the present invention;

fig. 4 is an enlarged schematic view of the inner protective layer of the present invention.

In the figure: 1. a conductor; 2. an inner protective layer; 3. a shielding layer; 4. an outer sheath; 5. a triangular support frame; 6. an elastic rubber; 7. an inner insulating layer; 8. an outer insulating layer; 9. a filler; 10. an opening; 11. an anti-drop ring; 12. a reflective strip.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1-4, the utility model provides a technical solution: the utility model provides an ultraviolet ray light irradiation crosslinked type control cable for nuclear power station, includes conductor 1, insulating layer, prevents turning round mechanism, interior sheath 2, shielding layer 3, oversheath 4, conductor 1 comprises many tinned copper wires transposition, the insulating layer sets up to bilayer composite structure, the insulating layer sets up the outside at conductor 1, prevent turning round the outside that the mechanism set up at the insulating layer, prevent turning round the mechanism and being provided with tripod 5, elastic rubber 6, the outside of preventing turning round the mechanism is provided with interior sheath 2, the outside of sheath 2 including shielding layer 3 sets up, shielding layer 3 is woven through several tinned copper wires and is formed, oversheath 4 sets up the outside at shielding layer 3, oversheath 4 sets up to ultraviolet ray irradiation crosslinked low smoke and zero halogen flame retardant material.

The insulating layer is provided with inner insulating layer 7 and outer insulating layer 8, inner insulating layer 7 sets up the inside at outer insulating layer 8, and inner insulating layer 7 wraps up in the outside of conductor 1 closely, inner insulating layer 7 sets up to ultraviolet irradiation crosslinked polyethylene material, outer insulating layer 8 sets up to ultraviolet irradiation crosslinked low smoke and zero halogen flame retardant material, through setting up the insulating layer to bilayer structure to set up inner insulating layer 7 to ultraviolet irradiation crosslinked polyethylene material, outer insulating layer 8 sets up to ultraviolet irradiation crosslinked low smoke and zero halogen flame retardant material, thereby makes the cable have good electrical property, mechanical properties, heat resistance and flame retardant property, makes the cable both have insulating nature and fire retardant property.

The triangular support frame 5 is arranged outside the insulating layer, a filler 9 is arranged in a gap between the triangular support frame 5 and the insulating layer, the filler 9 is made of glass fiber materials, and the cable has better insulating property, heat resistance, corrosion resistance and mechanical strength through the glass fiber.

Elastic rubber 6 sets up the outer wall at triangular support frame 5, elastic rubber 6 is provided with threely, elastic rubber 6 is located the clearance department between interior sheath 2 and triangular support frame 5, interior sheath 2 sets up to there being no halogen flame retardant material, through setting up conductor 1 in triangular support frame 5's inside to triangular support frame 5 and the clearance of interior sheath 2 are provided with elastic rubber 6, thereby when making the cable receive torsion, thereby elastic rubber 6 compression is protected conductor 1 in the triangular support frame 5 and is prevented spraining.

The utility model discloses a solar energy cable, including oversheath 4, both ends are provided with anti-drop ring 11 around the oversheath 4, anti-drop ring 11 is located the outside of opening 10, anti-drop ring 11 sets up to the silicon rubber material, and the outer wall of oversheath 4 is provided with a plurality of reflection of light strip 12, and opening 10 through oversheath 4 one side is convenient to be dismantled to anti-drop layer through both sides is fixed opening 10, reflects the sunlight through a plurality of reflection of light strip 12 that the oversheath 4 outside set up, thereby reduces the temperature of cable.

It should be noted that, in the control cable for the ultraviolet light irradiation crosslinking type nuclear power station, the insulation layer is provided with the inner insulation layer 7 and the outer insulation layer 8, the inner insulation layer 7 is tightly wrapped on the outer side of the conductor 1, the inner insulation layer 7 is made of the ultraviolet light irradiation crosslinking polyethylene material, the outer insulation layer 8 is made of the ultraviolet light irradiation crosslinking low-smoke halogen-free flame retardant material, so that the cable has excellent electrical performance, mechanical performance, heat resistance and flame retardant performance, the cable has both insulation and flame retardant properties, the outer side of the insulation layer is provided with the anti-twisting mechanism, when the cable is subjected to torsion, the elastic rubber 6 is compressed to protect and prevent the conductor 1 in the triangular support frame 5 from being twisted, the conductor 1 is arranged in the triangular support frame 5 so that the structure of the conductor 1 in the inner protection layer 2 is more stable, and the gap between the triangular support frame 5 and the insulation layer, the filler 9 is made of glass fiber materials, so that the cable has better insulativity, heat resistance, corrosion resistance and mechanical strength, and the outer wall of the outer sheath 4 is provided with the plurality of light reflecting strips 12, so that the surface of the cable is subjected to light reflection, the absorption of heat is reduced, and the temperature of the cable is reduced.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A control cable for an ultraviolet light irradiation crosslinking type nuclear power station is characterized by comprising a conductor (1), an insulating layer, an anti-twisting mechanism, an inner protective layer (2), a shielding layer (3) and an outer protective sleeve (4), the conductor (1) is formed by twisting a plurality of tinned copper wires, the insulating layer is of a double-layer composite structure, the insulating layer is arranged on the outer side of the conductor (1), the anti-twisting mechanism is arranged on the outer side of the insulating layer, the anti-twisting mechanism is provided with a triangular support frame (5) and elastic rubber (6), an inner protective layer (2) is arranged on the outer side of the anti-twisting mechanism, the shielding layer (3) is arranged on the outer side of the inner protective layer (2), the shielding layer (3) is formed by weaving a plurality of tinned copper wires, oversheath (4) set up in the outside of shielding layer (3), oversheath (4) set up to ultraviolet irradiation cross-linking low smoke and zero halogen flame retardant material.

2. The control cable for the ultraviolet ray irradiation crosslinking type nuclear power station as set forth in claim 1, wherein: the insulating layer is provided with inner insulating layer (7) and outer insulating layer (8), inner insulating layer (7) set up the inside at outer insulating layer (8), and inner insulating layer (7) closely wraps up in the outside of conductor (1), inner insulating layer (7) set up to ultraviolet irradiation crosslinked polyethylene material, outer insulating layer (8) set up to ultraviolet irradiation crosslinked low smoke and zero halogen flame retardant material.

3. The control cable for the ultraviolet ray irradiation crosslinking type nuclear power station as set forth in claim 1, wherein: the triangular support frame (5) is arranged outside the insulating layer, a filler (9) is arranged in a gap between the triangular support frame (5) and the insulating layer, and the filler (9) is made of glass fiber materials.

4. The control cable for the ultraviolet ray irradiation crosslinking type nuclear power station as set forth in claim 1, wherein: elastic rubber (6) sets up the outer wall at triangular supports frame (5), elastic rubber (6) are provided with threely, elastic rubber (6) are located the clearance department between interior sheath (2) and triangular supports frame (5), interior sheath (2) set up to there being no halogen flame retardant material.

5. The control cable for the ultraviolet ray irradiation crosslinking type nuclear power station as set forth in claim 1, wherein: the one end of oversheath (4) is provided with opening (10), both ends are provided with anti-drop ring (11) around oversheath (4), anti-drop ring (11) are located the outside of opening (10), anti-drop ring (11) set up to the silicon rubber material, and the outer wall of oversheath (4) is provided with a plurality of reflection of light strip (12).