CN210349379U - Instrument cable for third-generation nuclear power station - Google Patents
Instrument cable for third-generation nuclear power station Download PDFInfo
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- CN210349379U CN210349379U CN201921541046.9U CN201921541046U CN210349379U CN 210349379 U CN210349379 U CN 210349379U CN 201921541046 U CN201921541046 U CN 201921541046U CN 210349379 U CN210349379 U CN 210349379U
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Abstract
The utility model relates to the technical field of cables, a third generation is instrument cable for nuclear power station is disclosed, including the unit cable, the outer wall parcel of unit cable has the insulating layer, the outside parcel of insulating layer has the electromagnetic shield layer, the electromagnetic shield layer includes two mulberry silks that are in the same place through two spiral modes transposition, be equipped with the nylon yarn between the mulberry silk, the outside parcel on electromagnetic shield layer has waterproof tape layer, waterproof tape layer is formed with anticlockwise and clockwise mode winding respectively by two waterproof belts, waterproof tape layer's outside parcel has the metallic braid, metallic braid's outside parcel has the restrictive coating. The utility model provides the high electromagnetic shield effect and the stretch-proofing nature of cable have improved the holistic waterproof performance of cable simultaneously.
Description
Technical Field
The utility model relates to a cable technical field especially relates to an instrument cable for third generation nuclear power station.
Background
At present, all newly-built nuclear power projects must adopt a third-generation nuclear power technology, and all non-built second-generation nuclear power projects must be changed into the third-generation technology. As is known, the development idea of nuclear power is adjusted in China, and the nuclear power is rapidly developed on the premise of insisting on safety.
The utility model discloses an instrument cable for third generation nuclear power station in chinese patent application No. CN201620253641.2, including a plurality of insulation core, insulation core includes the conductor, the tin coating, crosslinked polyethylene inner insulating layer, fire-retardant irradiation crosslinked polyolefin outer insulating layer and copper mould compound area branch item shielding layer, the outside of conductor is provided with the tin coating, the outside of tin coating has set gradually crosslinked polyethylene inner insulating layer, fire-retardant irradiation crosslinked polyolefin outer insulating layer and copper mould compound area branch item shielding layer, crowded package filling layer in the outside of a plurality of insulation core, the outside of filling layer has set gradually at a distance from the oxygen layer, weave tinned copper wire total shielding layer and irradiation crosslinked halogen-free low smoke flame retardant polyolefin oversheath layer. The instrument cable for the third-generation nuclear power station has the following defects: its electromagnetic shielding effect and waterproof effect are not good.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem that cable electromagnetic shield effect and water-proof effects are not good among the prior art, and the instrument cable for third generation nuclear power station that provides.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an instrument cable for third generation nuclear power station, includes the unit cable, the outer wall parcel of unit cable has the insulating layer, the outside parcel of insulating layer has electromagnetic shield layer, electromagnetic shield layer includes two mulberry silks that are in the same place through two spiral modes transposition, be equipped with the nylon yarn between the mulberry silk, electromagnetic shield layer's outside parcel has waterproof tape layer, waterproof tape layer is formed with anticlockwise and clockwise mode winding respectively by two waterproof tapes, waterproof tape layer's outside parcel has the metallic braid, metallic braid's outside parcel has the restrictive coating.
Preferably, a waterproof membrane is arranged between the waterproof belt layer and the metal woven layer, and the waterproof membrane is wrapped on the outer side of the waterproof belt layer.
Preferably, the metal braided layer is a metal mesh body formed by braiding copper wires and aluminum wires, and the mesh diameter of the metal mesh body is 1mm x 1 mm.
Preferably, a filling rope is filled between the waterproof tape layer and the electromagnetic shielding layer.
Preferably, the sheath layer is a low-smoke halogen-free sheath.
Preferably, a glass fiber layer is arranged between the metal woven layer and the sheath layer.
Compared with the prior art, the utility model provides an instrument cable for third generation nuclear power station possesses following beneficial effect:
1. this third generation is instrument cable for nuclear power station, through setting up electromagnetic shield layer and waterproof band layer, the electromagnetic shield layer comprises mulberry silk and nylon yarn, the mulberry silk has and possesses superstrong electromagnetic shield effect, the stretch resistance of electromagnetic shield layer has been strengthened through the nylon yarn simultaneously, and then the holistic tensile resistance of cable has been improved, make whole waterproof band layer have good waterproof performance with the winding waterproof band of anticlockwise and clockwise mode respectively through two, and then the holistic water-proof effects of cable has been improved.
The part that does not relate to among the device all is the same with prior art or can adopt prior art to realize, the utility model provides high electromagnetic shield effect and the stretch-proofing nature of cable have improved the holistic waterproof performance of cable simultaneously.
Drawings
Fig. 1 is a schematic structural diagram of an instrument cable for a third-generation nuclear power station according to the present invention;
fig. 2 is a sectional view taken along line a-a in fig. 1.
In the figure: 1 unit cable, 2 insulating layers, 3 electromagnetic shielding layers, 4 waterproof tape layers, 5 metal braided layers, 6 sheathing layers, 7 waterproof films, 8 filling ropes and 9 glass fiber layers.
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.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", 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 simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Referring to fig. 1-2, an instrument cable for third generation nuclear power station, including unit cable 1, the outer wall parcel of unit cable 1 has insulating layer 2, the outside parcel of insulating layer 2 has electromagnetic shield layer 3, electromagnetic shield layer 3 includes two mulberry silks that are twisted together through two spiral modes, be equipped with the nylon yarn between the mulberry silks, electromagnetic shield layer 3's outside parcel has waterproof band layer 4, waterproof band layer 4 is formed with anticlockwise and clockwise mode winding respectively by two waterproof bands, waterproof band layer 4's outside parcel has woven layer 5, woven layer 5's outside parcel has restrictive coating 6, electromagnetic shield layer 3 comprises mulberry silk and nylon yarn, mulberry silk has the electromagnetic shield effect that possesses superstrong, the stretch resistance of electromagnetic shield layer 3 has been strengthened through the nylon yarn simultaneously, and then the holistic tensile resistance of cable has been improved, make whole waterproof band layer 4 have good with anticlockwise and clockwise mode winding waterproof band respectively through two, it has good electromagnetic shield effect to make whole waterproof band layer 4, the The waterproof performance of the cable is improved, and the overall waterproof effect of the cable is further improved.
The metal mesh body that metal braiding layer 5 was woven by copper wire and aluminium silk and is formed, and the net footpath of metal mesh body is 1mm, protects waterproof band layer 4 in the metal braiding layer 5.
And a filling rope 8 is filled between the waterproof tape layer 4 and the electromagnetic shielding layer 3 to fill a gap between the waterproof tape layer 4 and the electromagnetic shielding layer 3.
The sheath layer 6 is a low-smoke halogen-free sheath, and toxic smoke can not be generated during combustion.
A glass fiber layer 9 is arranged between the metal braid layer 5 and the sheath layer 6.
The utility model discloses in, electromagnetic shield layer 3 comprises mulberry silk and nylon yarn, and the mulberry silk has and possesses superstrong electromagnetic shield effect, has strengthened electromagnetic shield layer 3's stretch resistance simultaneously through the nylon yarn, and then has improved the holistic tensile resistance of cable, makes whole waterproof tape layer 4 have good waterproof performance with anticlockwise and clockwise mode winding waterproof tape respectively through two, and then has improved the holistic water-proof effects of cable.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides an instrument cable for third generation nuclear power station, includes unit cable (1), its characterized in that, the outer wall parcel of unit cable (1) has insulating layer (2), the outside parcel of insulating layer (2) has electromagnetic shield layer (3), electromagnetic shield layer (3) include two mulberry silks through two double helix mode twists together, be equipped with the nylon yarn between the mulberry silk, the outside parcel of electromagnetic shield layer (3) has waterproof tape layer (4), waterproof tape layer (4) are formed with anticlockwise and clockwise mode winding respectively by two waterproof tapes, the outside parcel on waterproof tape layer (4) has woven metal layer (5), the outside parcel of woven metal layer (5) has restrictive coating (6).
2. The instrument cable for the third generation nuclear power station according to claim 1, wherein a waterproof membrane (7) is arranged between the waterproof tape layer (4) and the metal braid layer (5), and the waterproof membrane (7) is wrapped outside the waterproof tape layer (4).
3. The instrument cable for the third generation nuclear power station according to claim 1, wherein the metal braid (5) is a metal mesh body woven by copper wires and aluminum wires, and the mesh diameter of the metal mesh body is 1mm x 1 mm.
4. The instrument cable for the third generation nuclear power station according to claim 1, characterized in that a filling rope (8) is filled between the waterproof tape layer (4) and the electromagnetic shielding layer (3).
5. The instrument cable for the third generation nuclear power station according to claim 1, characterized in that the sheath layer (6) is a low smoke zero halogen sheath.
6. The instrumentation cable for a third generation nuclear power station according to claim 1, wherein a glass fiber layer (9) is provided between the metal braid layer (5) and the sheath layer (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921541046.9U CN210349379U (en) | 2019-09-17 | 2019-09-17 | Instrument cable for third-generation nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921541046.9U CN210349379U (en) | 2019-09-17 | 2019-09-17 | Instrument cable for third-generation nuclear power station |
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| Publication Number | Publication Date |
|---|---|
| CN210349379U true CN210349379U (en) | 2020-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921541046.9U Active CN210349379U (en) | 2019-09-17 | 2019-09-17 | Instrument cable for third-generation nuclear power station |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112635105A (en) * | 2020-11-20 | 2021-04-09 | 马鞍山安慧智电子科技有限公司 | Insulating flame-retardant computer cable for communication |
-
2019
- 2019-09-17 CN CN201921541046.9U patent/CN210349379U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112635105A (en) * | 2020-11-20 | 2021-04-09 | 马鞍山安慧智电子科技有限公司 | Insulating flame-retardant computer cable for communication |
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