CN102930925A - Low-cost intense radiation resistant low-noise cable - Google Patents
Low-cost intense radiation resistant low-noise cable Download PDFInfo
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- CN102930925A CN102930925A CN201210426295XA CN201210426295A CN102930925A CN 102930925 A CN102930925 A CN 102930925A CN 201210426295X A CN201210426295X A CN 201210426295XA CN 201210426295 A CN201210426295 A CN 201210426295A CN 102930925 A CN102930925 A CN 102930925A
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Abstract
The invention discloses a low-cost intense radiation resistant low-noise cable which comprises at least a pair of independent split-phase shielding insulation core wires. Each split-phase shielding insulation core wire comprises a copper conductor, a semiconductive polysulfone inner shielding layer, a polysulfone insulation layer, a semiconductive polysulfone outer shielding layer and a split-phase shielding layer, wherein the semiconductive polysulfone inner shielding layer, the polysulfone insulation layer, the semiconductive polysulfone outer shielding layer and the split-phase shielding layer are wrapped on the outer side of the copper conductor in sequence. The split-phase shielding insulation core wires are wrapped in a total shielding layer, and a polysulfone outer protective layer is wrapped on the outer side of the total shielding layer. The low-cost intense radiation resistant low-noise cable solves the problem that a low-noise cable in the prior art does not have the characteristics of low cost and intense radiation resistance, solves the key technology of the low cost and the intense radiation resistance of the low-noise cable through material selection, cable structure and appropriate process design, and is suitable for signal measurement at intense radiation environment.
Description
Technical field
The present invention relates to a kind of low noise cable, especially a kind of low cost low noise cable of anti-the intense radiation.
Background technology
Under the extraneous factor effects such as bending, vibration, impact, variations in temperature, cable itself will produce a certain amount of electrostatic signal (or claim the construction of cable noise), usually construction of cable noise will be referred to as low noise cable less than the cable of 5mV.Tiny signal measurement in a plurality of fields such as industrial measurement and control, medical science, national defence all need be used low noise cable.More common low noise cable has polyethylene insulation low noise cable, F46 insulation low noise cable, low electric capacity low noise cable etc. at present.
And along with to climate change, changeable fossil fuel price and the worry of the energy safety of supply aspect, many countries all become interested to development nuclear energy, the newly-built nuclear power station quantity in the coming few decades whole world will increase steadily, to alleviate the nervous and reducing emission of carbon dioxide alleviation global warming of global energy supply and demand.Nuclear power 1 E-level K1 class cable requires at least 40 years working lives, 90 ℃ of long-term work temperature, the anti-irradiation dose 2.5 * 10 of accumulative total
5Gy.Although had this class can meet the low noise cable of anti-intense radiation of above-mentioned requirements at present, because of the problem of its selection, production cost is higher, be unfavorable for batch production.
Summary of the invention
Technical problem to be solved by this invention provides a kind of low cost low noise cable of anti-the intense radiation, selection by structure and material, a kind of low cost low noise cable of anti-the intense radiation can be provided with lower Financial cost, can be at largest cumulative radiation dose 1 * 10
6Under the environment of Gy, the noise that cable itself produces meets the demands.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is:
A kind of low cost low noise cable of anti-the intense radiation, comprise at least one pair of separately independent phase-splitting shielding insulation heart yearn, described phase-splitting shielding insulation heart yearn comprises copper conductor and is wrapped in successively described copper conductor outer semiconductive polysulfones internal shield, polysulfones insulating barrier, semiconductive polysulfones outer shielding layer, phase-splitting screen; Described phase-splitting shielding insulation heart yearn all is wrapped in the total screen, and described total screen also is enclosed with the polysulfones outer jacket outward.
Aforesaid a kind of low cost low noise cable of anti-the intense radiation is characterized in that: described copper conductor is nickel plating sub-thread copper conductor or nickel plating strands copper conductor.
Aforesaid a kind of low cost low noise cable of anti-the intense radiation is characterized in that: described copper conductor is silver-plated sub-thread copper conductor or silver-plated strands copper conductor.
Aforesaid a kind of low cost low noise cable of anti-the intense radiation is characterized in that: described semiconductive internal shield and semiconductive outer shielding layer are wrapped type or extrusion type semiconductive polysulfones material.
Aforesaid a kind of low cost low noise cable of anti-the intense radiation is characterized in that: described insulating barrier and outer jacket are extrusion type polysulfones material.
Aforesaid a kind of low cost low noise cable of anti-the intense radiation is characterized in that: described phase-splitting screen is formed by nickel plating or the braiding of silver-plated copper conductor, and count is greater than 80%, and the diameter of described nickel plating or silver-plated copper conductor is 0.08mm-0.2mm.
Aforesaid a kind of low cost low noise cable of anti-the intense radiation is characterized in that: described total screen is formed by nickel plating or the braiding of silver-plated copper conductor, and count is greater than 80%, and the diameter of described nickel plating or silver-plated copper conductor is 0.08mm-0.2mm.
Aforesaid a kind of low cost low noise cable of anti-the intense radiation is characterized in that: the thickness of described semiconductive polysulfones internal shield, polysulfones insulating barrier, semiconductive polysulfones outer shielding layer is 0.2mm-1.5mm.
The invention has the beneficial effects as follows: by adopting at least one pair of separately independent phase-splitting shielding insulation heart yearn, wherein conductor is nickel plating or silver-plated sub-thread or strands copper conductor, wrapped type or the inside and outside screen of extrusion type semiconductive polysulfones, extrusion type polysulfones insulating barrier, and nickel plating or silver-plated copper conductor braiding phase-splitting, total screen, ad hoc structure and the materials such as extrusion type polysulfones outer jacket make cable of the present invention have following advantage:
1, significantly reduced cable cost: a kind of low cost low noise cable of anti-intense radiation that adopts polysulfone material to produce, its anti-intense radiation performance (largest cumulative irradiation dose) is only a little less than the same specification low noise cable of anti-intense radiation that adopts the expensive polyetheretherketonematerials materials of price to produce, but all can satisfy the requirement of anti-intense radiation, because the material cost of polysulfones only is 1/4th of polyetheretherketonematerials materials cost, so a kind of low cost low noise cable of anti-intense radiation that adopts polysulfones to produce had both satisfied the requirement of anti-intense radiation performance, had greatly reduced again cost;
2, long-term nominal operation temperature range is :-60～150 ℃;
3, excellent radiation-resistant property, accumulative total irradiation dose (γ irradiation) reaches 1 * 10
6Still can keep good insulation property and mechanical performance during Gy, be higher than far away present 1E level K1 nucleoid cable standard regulation requirement 2.5 * 10
5Gy;
4, when 150 ℃ and following temperature, the structureborne noise≤5mV of cable;
5, good hydrolytic resistance can continuous use still keep good performance under high temperature and high pressure steam or water environment.
6, excellent acidproof, alkaline-resisting, resistance to chemical corrosion.
7, cable has the working life more than at least 40 years.
Description of drawings
Fig. 1 is the structural representation of a kind of low cost of the present invention low noise cable of anti-the intense radiation.
Embodiment
As shown in Figure 1, a kind of low cost low noise cable of anti-the intense radiation, comprise at least one pair of separately independent phase-splitting shielding insulation heart yearn, phase-splitting shielding insulation heart yearn comprises copper conductor 1 and is wrapped in successively copper conductor 1 semiconductive polysulfones internal shield 2, polysulfones insulating barrier 3, semiconductive polysulfones outer shielding layer 4, phase-splitting screen 5 outward; Phase-splitting shielding insulation heart yearn all is wrapped in the total screen 6, total screen 6 outer polysulfones outer jackets 7 that also are enclosed with, utilize the cheap radiation-resistant property excellence of polysulfone material etc., thereby realized that cable has the characteristic of low Financial cost, anti-intense radiation, low noise.
Copper conductor 1 is nickel plating sub-thread copper conductor or nickel plating strands copper conductor, and copper conductor 1 can also be silver-plated sub-thread copper conductor or silver-plated strands copper conductor simultaneously, has guaranteed that whole cable has corresponding pliability and rounding property.
Semiconductive polysulfones internal shield 2 and semiconductive polysulfones outer shielding layer 4 are wrapped type or extrusion type, insulating barrier 3 is extrusion type polysulfones material, and thickness is 0.2mm-1.5mm, guaranteed that the construction of cable is stable, and the electrostatic signal (also can be described as construction of cable noise) that cable itself is produced drops to minimum.Adopt the shielding construction of wrapped type or extrusion type can reduce the difficulty of cable production technology, have simultaneously good radiation resistance and the effect that reduces the noise of cable own concurrently.
Phase-splitting screen 5 is formed by nickel plating or the braiding of silver-plated copper conductor, count is greater than 80%, the diameter of described nickel plating or silver-plated copper conductor is 0.08mm-0.2mm, total screen 6 is formed by nickel plating or the braiding of silver-plated copper conductor, count is greater than 80%, the diameter of described nickel plating or silver-plated copper conductor is 0.08mm-0.2mm, and namely the maskable external world is to the interference of small-signal that cable detects, and the pliability that also can improve cable can also reduce the outside diameter of cable simultaneously, reduce cable cost.Total screen 6 and each phase-splitting screen 5 close contact, ground connection during use has been guaranteed the reliability of metallic shield, and has shielded the interference of outer signals to cable itself, has guaranteed cable low noise characteristic.
In sum, a kind of low cost low noise cable of anti-intense radiation the provided by the invention solves cable low cost, anti-irradiation and low noise characteristic by material selection, cable structure and suitable technological design.
More than show and described basic principle of the present invention, principal character and advantage.The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; that describes in above-described embodiment and the specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.The claimed scope of the present invention is by appending claims and equivalent circle thereof.
Claims (8)
1. low cost low noise cable of anti-the intense radiation, it is characterized in that: comprise at least one pair of separately independent phase-splitting shielding insulation heart yearn, described phase-splitting shielding insulation heart yearn comprises copper conductor (1) and is wrapped in successively described copper conductor (1) outer semiconductive polysulfones internal shield (2), polysulfones insulating barrier (3), semiconductive polysulfones outer shielding layer (4), phase-splitting screen (5); Described phase-splitting shielding insulation heart yearn all is wrapped in the total screen (6), the outer polysulfones outer jacket (7) that also is enclosed with of described total screen (6).
2. a kind of low cost low noise cable of anti-intense radiation the according to claim 1, it is characterized in that: described copper conductor (1) is nickel plating sub-thread copper conductor or nickel plating strands copper conductor.
3. a kind of low cost low noise cable of anti-intense radiation the according to claim 1, it is characterized in that: described copper conductor (1) is silver-plated sub-thread copper conductor or silver-plated strands copper conductor.
4. it is characterized in that according to claim 2 or 3 described a kind of low cost low noise cables of anti-the intense radiation: described semiconductive internal shield (2) and semiconductive outer shielding layer (4) are wrapped type or extrusion type semiconductive polysulfones material.
5. a kind of low cost low noise cable of anti-intense radiation the according to claim 4 is characterized in that: described insulating barrier (3) and outer jacket (7) are extrusion type polysulfones material.
6. a kind of low cost low noise cable of anti-intense radiation the according to claim 5, it is characterized in that: described phase-splitting screen (5) is formed by nickel plating or the braiding of silver-plated copper conductor, count is greater than 80%, and the diameter of described nickel plating or silver-plated copper conductor is 0.08mm-0.2mm.
7. a kind of low cost low noise cable of anti-intense radiation the according to claim 6, it is characterized in that: described total screen (6) is formed by nickel plating or the braiding of silver-plated copper conductor, count is greater than 80%, and the diameter of described nickel plating or silver-plated copper conductor is 0.08mm-0.2mm.
8. a kind of low cost low noise cable of anti-intense radiation the according to claim 7, it is characterized in that: the thickness of described semiconductive polysulfones internal shield (2), polysulfones insulating barrier (3), semiconductive polysulfones outer shielding layer (4) is 0.2mm-1.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210426295XA CN102930925A (en) | 2012-10-31 | 2012-10-31 | Low-cost intense radiation resistant low-noise cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210426295XA CN102930925A (en) | 2012-10-31 | 2012-10-31 | Low-cost intense radiation resistant low-noise cable |
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| CN102930925A true CN102930925A (en) | 2013-02-13 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1961386A (en) * | 2004-04-27 | 2007-05-09 | 普雷斯曼电缆及系统能源有限公司 | Process for manufacturing a cable resistant to external chemical agents |
| CN201584213U (en) * | 2010-03-05 | 2010-09-15 | 九星控股集团有限公司 | Water-resisting steel wire cross-linking power cable |
| CN101950627A (en) * | 2010-06-04 | 2011-01-19 | 上海赛克力特种电缆有限公司 | Anti-nuclear radiation semi-flexible/semi-rigid coaxial cable |
| CA2811569A1 (en) * | 2010-09-30 | 2012-04-19 | Union Carbide Chemicals & Plastics Technology Llc | Coated conductor with voltage stabilized inner layer |
| CN202887786U (en) * | 2012-10-31 | 2013-04-17 | 江苏永鼎电气有限公司 | Low-cost intense radiation-resistant low-noise cable |
-
2012
- 2012-10-31 CN CN201210426295XA patent/CN102930925A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1961386A (en) * | 2004-04-27 | 2007-05-09 | 普雷斯曼电缆及系统能源有限公司 | Process for manufacturing a cable resistant to external chemical agents |
| CN201584213U (en) * | 2010-03-05 | 2010-09-15 | 九星控股集团有限公司 | Water-resisting steel wire cross-linking power cable |
| CN101950627A (en) * | 2010-06-04 | 2011-01-19 | 上海赛克力特种电缆有限公司 | Anti-nuclear radiation semi-flexible/semi-rigid coaxial cable |
| CA2811569A1 (en) * | 2010-09-30 | 2012-04-19 | Union Carbide Chemicals & Plastics Technology Llc | Coated conductor with voltage stabilized inner layer |
| CN202887786U (en) * | 2012-10-31 | 2013-04-17 | 江苏永鼎电气有限公司 | Low-cost intense radiation-resistant low-noise cable |
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Application publication date: 20130213 |