CN102930924A - Intense radiation resistant low-noise cable - Google Patents
Intense radiation resistant low-noise cable Download PDFInfo
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- CN102930924A CN102930924A CN2012104255706A CN201210425570A CN102930924A CN 102930924 A CN102930924 A CN 102930924A CN 2012104255706 A CN2012104255706 A CN 2012104255706A CN 201210425570 A CN201210425570 A CN 201210425570A CN 102930924 A CN102930924 A CN 102930924A
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- polyether
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Abstract
The invention discloses an intense radiation resistant low-noise cable which comprises at least one pair of independent split-phase shielding insulation cable wires. Each split-phase shielding insulation cable wire comprises a copper conductor, a semiconductive polyether-ether-ketone inner shielding layer, a polyether-ether-ketone insulation layer, a semiconductive polyether-ether-ketone outer shielding layer and a split-phase shielding layer, wherein the semiconductive polyether-ether-ketone inner shielding layer, the polyether-ether-ketone insulation layer, the semiconductive polyether-ether-ketone 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 cable wires are wrapped in a total shielding layer, and a polyether-ether-ketone outer protective layer is wrapped on the outer side of the total shielding layer. The intense radiation resistant low-noise cable solves the problem that a low-noise cable in the prior art does not have the characteristic of intense radiation resistance, solves the key technology of 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 noise cable that is applicable under the intense radiation environment.
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, but lacks the low noise cable of the anti-intense radiation that can work under radiation environment.
Although serious Fukushima nuclear crisis had occured in Japan in 2011; but 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, alleviates global warming to alleviate global energy supply and demand anxiety and reducing emission of carbon dioxide.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.This also is the basic demand that the low noise cable of anti-the intense radiation must satisfy.
Summary of the invention
Technical problem to be solved by this invention provides a kind of low noise cable that can be used under the strong radiation environment.By the selection of structure and material, can work in largest cumulative irradiation dose 1.1 * 10
7Under the Gy environment, and the noise that cable itself produces when work meets the demands.
In order to solve the problems of the technologies described above, the technology used in the present invention mode is:
A kind of 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 polyether-ether-ketone internal shield, polyether-ether-ketone insulating barrier, semiconductive polyether-ether-ketone 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 polyether-ether-ketone outer jacket outward.
The aforesaid 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.
The aforesaid 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.
The aforesaid 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 polyether-ether-ketone material.
The aforesaid low noise cable of anti-the intense radiation is characterized in that: described insulating barrier and outer jacket are extrusion type polyether-ether-ketone material.
The aforesaid 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.
The aforesaid 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.
The aforesaid low noise cable of anti-the intense radiation is characterized in that: the thickness of described semiconductive polyether-ether-ketone internal shield, polyether-ether-ketone insulating barrier, semiconductive polyether-ether-ketone 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 polyether-ether-ketone, extrusion type polyether-ether-ketone 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 polyether-ether-ketone outer jacket make cable of the present invention have following advantage:
1, long-term nominal operation temperature range is :-60～250 ℃;
2, excellent anti-strong irradiation behaviour, largest cumulative irradiation dose (γ irradiation) can reach 1.1 * 10
7Gy, cable still can keep good insulation property and mechanical performance at that time, and what be higher than present 1E level K1 nucleoid cable standard regulation far away requires 2.5 * 10
5Gy;
3, when 250 ℃ and following temperature, the structureborne noise≤5mV of cable;
4, good hydrolytic resistance can continuous use still keep good performance under high temperature and high pressure steam or water environment;
5, excellent chemical resistance in common chemicals, can dissolve or destroy its concentrated sulfuric acid that only has;
6, cable has the working life more than at least 40 years.
Description of drawings
Fig. 1 is the structural representation of the present invention's low noise cable of anti-the intense radiation.
Embodiment
Below in conjunction with Figure of description, the present invention is further illustrated.
As shown in Figure 1, a kind of 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 polyether-ether-ketone internal shield 2, polyether-ether-ketone insulating barrier 3, semiconductive polyether-ether-ketone 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 polyether-ether-ketone outer jackets 7 that also are enclosed with.By using internal shield 2, insulating barrier 3, outer shielding layer 4 and the outer jacket 7 of polyether-ether-ketone material, utilize the radiation-resistant property of polyetheretherketonematerials materials excellence, electric and mechanical performance, realized that cable has anti-high dose radiation under the intense radiation environment, low noise characteristic.
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 polyether-ether-ketone internal shield 2 and semiconductive polyether-ether-ketone outer shielding layer 4 are wrapped type or extrusion type, insulating barrier 3 is extrusion type polyether-ether-ketone 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.
Outer jacket 7 is extrusion type polyether-ether-ketone material, the easy control of technique when the radiation hardness barrier propterty of raising cable and cable produce.
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 noise cable that can be used under the strong radiation environment provided by the invention by the selection of structure and material, can work in largest cumulative irradiation dose 1.1 * 10
7Under the Gy environment, and the noise that cable itself produces when work meets the demands.
Above demonstration 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 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 polyether-ether-ketone internal shield (2), polyether-ether-ketone insulating barrier (3), semiconductive polyether-ether-ketone 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 polyether-ether-ketone outer jacket (7) that also is enclosed with of described total screen (6).
2. the low noise cable of anti-intense radiation the according to claim 1 is characterized in that: described copper conductor (1) is nickel plating sub-thread copper conductor or nickel plating strands copper conductor.
3. the low noise cable of anti-intense radiation the according to claim 1 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 the 3 described 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 polyether-ether-ketone material.
5. the 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 polyether-ether-ketone material.
6. the low noise cable of anti-intense radiation the according to claim 5 is characterized in that: described phase-splitting screen (5) 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.
7. the low noise cable of anti-intense radiation the according to claim 6 is characterized in that: described total screen (6) 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.
8. the low noise cable of anti-intense radiation the according to claim 7 is characterized in that: the thickness of described semiconductive polyether-ether-ketone internal shield (2), polyether-ether-ketone insulating barrier (3), semiconductive polyether-ether-ketone outer shielding layer (4) is 0.2mm-1.5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104255706A CN102930924A (en) | 2012-10-31 | 2012-10-31 | Intense radiation resistant low-noise cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104255706A CN102930924A (en) | 2012-10-31 | 2012-10-31 | Intense radiation resistant low-noise cable |
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| CN102930924A true CN102930924A (en) | 2013-02-13 |
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| CN2012104255706A Pending CN102930924A (en) | 2012-10-31 | 2012-10-31 | Intense radiation resistant low-noise cable |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103077768A (en) * | 2013-02-21 | 2013-05-01 | 江苏永鼎电气有限公司 | Flexible high-temperature resistant low-noise cable |
| CN105810356A (en) * | 2016-05-30 | 2016-07-27 | 天津朗兴电线电缆有限公司 | Symmetrically-twisted anti-explosion high-temperature-resistant low-noise cable and manufacturing method thereof |
| CN105845223A (en) * | 2016-05-30 | 2016-08-10 | 天津朗兴电线电缆有限公司 | Separately-shielded and symmetrically-stranded cable resistant to high temperature and with low noise and fabrication method thereof |
| CN106057295A (en) * | 2016-07-19 | 2016-10-26 | 江苏永鼎电气有限公司 | Ultralow temperature cable |
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| CN101430946A (en) * | 2007-11-05 | 2009-05-13 | 无锡市明珠电缆有限公司 | 8.7/10kV and below mining monitor rubber jacketed flexible cable and production method thereof |
| CN101964222A (en) * | 2010-05-24 | 2011-02-02 | 上海赛克力特种电缆有限公司 | IE-grade K1-type control cable for nuclear reactor |
| CN201804596U (en) * | 2010-08-11 | 2011-04-20 | 四川明星电缆股份有限公司 | Cable for gas-cooled reactor |
| CN202887787U (en) * | 2012-10-31 | 2013-04-17 | 江苏永鼎电气有限公司 | Strong-radiation-resisting low-noise cable |
-
2012
- 2012-10-31 CN CN2012104255706A patent/CN102930924A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101430946A (en) * | 2007-11-05 | 2009-05-13 | 无锡市明珠电缆有限公司 | 8.7/10kV and below mining monitor rubber jacketed flexible cable and production method thereof |
| CN101964222A (en) * | 2010-05-24 | 2011-02-02 | 上海赛克力特种电缆有限公司 | IE-grade K1-type control cable for nuclear reactor |
| CN201804596U (en) * | 2010-08-11 | 2011-04-20 | 四川明星电缆股份有限公司 | Cable for gas-cooled reactor |
| CN202887787U (en) * | 2012-10-31 | 2013-04-17 | 江苏永鼎电气有限公司 | Strong-radiation-resisting low-noise cable |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103077768A (en) * | 2013-02-21 | 2013-05-01 | 江苏永鼎电气有限公司 | Flexible high-temperature resistant low-noise cable |
| CN103077768B (en) * | 2013-02-21 | 2016-04-13 | 江苏永鼎电气有限公司 | A kind of flexible high-temperature resistant low-noise cable |
| CN105810356A (en) * | 2016-05-30 | 2016-07-27 | 天津朗兴电线电缆有限公司 | Symmetrically-twisted anti-explosion high-temperature-resistant low-noise cable and manufacturing method thereof |
| CN105845223A (en) * | 2016-05-30 | 2016-08-10 | 天津朗兴电线电缆有限公司 | Separately-shielded and symmetrically-stranded cable resistant to high temperature and with low noise and fabrication method thereof |
| CN106057295A (en) * | 2016-07-19 | 2016-10-26 | 江苏永鼎电气有限公司 | Ultralow temperature cable |
| CN106057295B (en) * | 2016-07-19 | 2018-08-24 | 江苏永鼎电气有限公司 | A kind of ultralow-temperature cable |
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Application publication date: 20130213 |
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