CN213752013U - Winding wire for control rod driving mechanism of nuclear power station - Google Patents
Winding wire for control rod driving mechanism of nuclear power station Download PDFInfo
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- CN213752013U CN213752013U CN202022805538.3U CN202022805538U CN213752013U CN 213752013 U CN213752013 U CN 213752013U CN 202022805538 U CN202022805538 U CN 202022805538U CN 213752013 U CN213752013 U CN 213752013U
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Abstract
The utility model relates to a nuclear power station control rod drive mechanism is with high temperature resistant radiation-resistant winding wire, it includes the conductor and adheres to the insulating layer on the conductor, the insulating layer includes first around covering and the second around covering of cladding on the conductor from inside to outside in proper order, first around covering and second around covering constitute by alkali-free glass fiber; the utility model discloses a winding wire for nuclear power station control rod drive mechanism, first around the covering and the second around the covering constitute by alkali-free glass fiber, because the insulating material who uses does not contain organic material, has got rid of the defect in the aspect of organic material to high temperature resistant, make the temperature resistant grade of winding wire can break through 350 grades of restriction, can the stable use of long-term under the high temperature of 500 ℃; in addition, the thickness of the two sides of the whole insulating layer can be controlled to be 0.20mm or below, the insulating thickness is reduced by 30% compared with the insulating thickness in the prior art, the improvement of the slot fullness is facilitated, the volume of a control rod driving mechanism of a nuclear power station is greatly reduced, and the intensive development requirement is met.
Description
Technical Field
The utility model belongs to the technical field of the special type winding wire, concretely relates to nuclear power station control rod actuating mechanism is with high temperature resistant radiation-resistant winding wire.
Background
The nuclear power product has extremely high requirements on safety and stability, so that the nuclear power product has higher requirements on heat resistance when being applied to the nuclear power product. Aiming at the requirement of continuous lifting of nuclear power products, the winding wire is a high-temperature radiation-resistant special winding wire of a control rod driving mechanism of a nuclear power plant, can resist high temperature of 500 ℃ and radiation of 5 multiplied by 105GY Gamma-ray for a long time, and has thin insulation thickness.
Chinese patent CN201110137875.2 discloses a high temperature resistant and radiation resistant electromagnetic wire for a nuclear power unit, which comprises a conductor and an insulating layer wrapped outside the conductor, wherein the conductor is a nickel-plated copper conductor with a nickel plating layer bonded on the surface, and the insulating layer comprises a glass fiber cloth reinforcing organic silicon mica tape layer wrapped outside the conductor and a glass fiber layer wrapped outside the glass fiber cloth reinforcing organic silicon mica tape layer. The advantages are that: has ideal high temperature resistance and can stably work for a long time at the high temperature of 260 ℃; after Gamma-ray irradiation with the dosage of 5 multiplied by 105GY is irradiated, a pressure resistance test is carried out, and the pressure resistance performance is not reduced; the corona resistance characteristic is excellent, the repetition frequency of square wave pulse test voltage is 20KHz, the pulse peak voltage is +/-5000V, the pulse voltage rise rate is not lower than 2000V/mu s, the temperature is 120 ℃, and the corona resistance damage life is not lower than 100 hours; has good insulation property and breakdown voltage resistance of more than 3800V. However, the temperature grade is only 260 grade, and the requirement of the heat resistance grade of the electrical material for the control rod driving mechanism of the nuclear power station in the future cannot be met. And the total insulation thickness exceeds 0.25mm due to the limitation of the insulation structure thereof.
In addition, chinese patent cn201611184911.x discloses a high temperature resistant radiation resistant waterproof electromagnetic wire and a preparation method thereof, wherein the electromagnetic wire comprises a conductor, and a glass fiber cloth reinforced organic silicon mica tape layer, a first high temperature resistant radiation resistant insulating paint layer, a glass fiber filament, a second high temperature resistant radiation resistant insulating paint layer and a waterproof glue layer sequentially wrapped outside the conductor from inside to outside. The heat resistance level is 350 ℃, and the paint has radiation resistance and water resistance. However, the temperature grade is only 350 grade, and the requirement of the heat resistance grade of the electrical material for the control rod driving mechanism of the nuclear power station in the future cannot be met. And the total insulation thickness exceeds 0.25mm due to the limitation of the insulation structure thereof.
Disclosure of Invention
The to-be-solved technical problem of the utility model is to provide a winding wire for nuclear power station control rod drive mechanism, it has high temperature resistant radiation resistance.
In order to solve the technical problem, the utility model discloses a technical scheme be:
the utility model provides a nuclear power station control rod drive mechanism is with high temperature resistant radiation-resistant winding wire, its include the conductor with be attached to insulating layer on the conductor, the insulating layer includes the cladding from inside to outside in proper order first around the covering and the second on the conductor around the covering, first around the covering and the second around the covering constitute by alkali-free glass fiber.
Preferably, the alkali-free glass fiber of the first wrapping layer is 360 or 600.
Preferably, the alkali-free glass fiber of the second wrapping layer is 360 or 600.
Preferably, the first wrapping layer wrapping direction is opposite to the second wrapping layer wrapping direction.
Preferably, the conductor surface is provided with a nickel plating layer.
Preferably, the thickness of the two sides of the nickel plating layer is 0.010-0.015 mm.
Preferably, the copper content of the conductor is 99.95%, and the volume resistivity of the conductor is less than or equal to 0.017960 omega-mm2And the breaking elongation of the conductor is more than or equal to 28 percent.
Preferably, the conductor is circular in cross-section.
Preferably, the diameter of the conductor is 1.0 mm-3.0 mm.
Preferably, the thickness of the first wrapping layer and the second wrapping layer is 0.08 mm-0.10 mm.
Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages:
the utility model discloses a winding wire for nuclear power station control rod drive mechanism, first around the covering and the second around the covering constitute by alkali-free glass fiber, because the insulating material who uses does not contain organic material, has got rid of the defect in the aspect of organic material to high temperature resistant, make the temperature resistant grade of winding wire can break through 350 grades of restriction, can the stable use of long-term under the high temperature of 500 ℃; in addition, the thickness of the two sides of the whole insulating layer can be controlled to be 0.20mm or below, the insulating thickness is reduced by 30% compared with the insulating thickness in the prior art, the improvement of the slot fullness is facilitated, the volume of a control rod driving mechanism of a nuclear power station is greatly reduced, and the intensive development requirement is met.
Drawings
Fig. 1 is a schematic cross-sectional structure of a winding wire according to the present invention;
wherein: 10. 100, nickel plating; 11. a first lapping layer; 12. and a second lapping layer.
Detailed Description
The technical solution of the present invention will be further explained with reference to the accompanying drawings and the detailed description.
As shown in fig. 1, a high temperature and radiation resistant winding wire for a nuclear power station control rod drive mechanism comprises a conductor 10 and an insulating layer attached to the conductor 10, wherein the insulating layer comprises a first winding covering 11 and a second winding covering 12 which are sequentially coated on the conductor 10 from inside to outside, and the first winding covering 11 and the second winding covering 12 are both formed by alkali-free glass fibers.
In this example, a nickel plating layer 100 is provided on the surface of the conductor 10; the thickness of the nickel plating layer 100 is 0.010-0.015 mm at two sides; the nickel plating treatment of the surface of the conductor 10 can reduce the oxidation deterioration of the conductor 10 in a high temperature state, and also contribute to further extending the service life of the winding wire.
Furthermore, the cross section of the conductor 10 is circular, the diameter of the conductor 10 is 1.0 mm-3.0 mm, the copper content of the conductor 10 is 99.95%, the volume resistivity of the conductor 10 is not more than 0.017960 omega-mm 2/m, and the breaking elongation of the conductor 10 is not less than 28%.
Specifically, the alkali-free glass fibers of the first wrapping layer 11 are 360 or 600; the second is 360 or 600 counts around no alkali glass fiber of covering 12, and first 11 chartered directions around the covering opposite direction around the covering 12 with the second. In addition, the thicknesses of the first wrapping layer 11 and the second wrapping layer 12 are both 0.08 mm-0.10 mm; the total insulating layer thickness (double-sided thickness) is 0.16mm to 0.20 mm.
The utility model discloses a concrete dimensional specification example of winding wire for nuclear power station control rod drive mechanism is as follows:
taking a copper conductor 10 containing a nickel plating layer 100, wherein the diameter range is 1.450 mm-1.465 mm, the thickness of both sides of the nickel plating layer 100 is 0.010 mm-0.015 mm, and the content of the nickel plating layer 100 is about 3.2% -4.8%; then, two layers (a first wrapping layer 11 and a second wrapping layer 12) of 600 alkali-free glass fibers for electricians are continuously wrapped in opposite directions, the total insulation thickness is 0.16mm, the external dimension of a finished product is less than or equal to 1.66mm, and the insulation resistance of the finished product is more than or equal to 1000M omega when the finished product is 500V.
Taking a copper conductor 10 containing a nickel plating layer 100, wherein the diameter range is 2.59-2.616 mm, the thickness of the two sides of the nickel plating layer 100 is 0.010-0.015 mm, and the content of the nickel plating layer 100 is about 1.8-2.7%; and then continuously wrapping two layers (a first wrapping layer 11 and a second wrapping layer 12) of 360 alkali-free glass fibers for electricians in opposite directions, wherein the overall dimension of a final finished product is less than or equal to 2.80mm, and the insulation resistance of the finished product is more than or equal to 1000 MOmega at 500V.
To sum up, the utility model discloses a winding wire for nuclear power station control rod drive mechanism, first around covering and second around covering constitute by alkali-free glass fiber, because the insulating material who uses does not contain organic material, has got rid of the defect in the aspect of organic material is to high temperature resistant, makes the temperature resistant grade of winding wire can break through 350 grades of restriction, can the stable use of long-term under the high temperature of 500 ℃; in addition, the thickness of the two sides of the whole insulating layer can be controlled to be 0.20mm or below, the insulating thickness is reduced by 30% compared with the insulating thickness in the prior art, the improvement of the slot fullness is facilitated, the volume of a control rod driving mechanism of a nuclear power station is greatly reduced, and the intensive development requirement is met.
The present invention has been described in detail, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the same, and the scope of the present invention is not limited thereto, and the present invention is not limited to the above-mentioned embodiments, and all equivalent changes or modifications made according to the spirit of the present invention should be covered within the scope of the present invention.
Claims (10)
1. A winding wire for a nuclear power plant control rod drive mechanism, comprising a conductor and an insulating layer attached to the conductor, characterized in that: the insulating layer includes from inside to outside cladding in proper order the first covering and the second on the conductor are around the covering, first covering and second are around the covering and constitute by alkali-free glass fiber.
2. The winding wire for a nuclear power plant control rod drive mechanism according to claim 1, wherein: the number of the alkali-free glass fibers of the first wrapping layer is 360 or 600.
3. The winding wire for a nuclear power plant control rod drive mechanism according to claim 1, wherein: the alkali-free glass fiber of the second wrapping layer is 360 or 600.
4. The winding wire for a nuclear power plant control rod drive mechanism according to claim 1, wherein: the first wrapping direction is opposite to the second wrapping direction.
5. The winding wire for a nuclear power plant control rod drive mechanism according to claim 1, wherein: and a nickel plating layer is arranged on the surface of the conductor.
6. The winding wire for a nuclear power plant control rod drive mechanism according to claim 5, wherein: the thickness of the two sides of the nickel-plated layer is 0.010-0.015 mm.
7. The winding wire for a nuclear power plant control rod drive mechanism according to claim 1, wherein: the volume resistivity of the conductor is less than or equal to 0.017960 omega mm2And the breaking elongation of the conductor is more than or equal to 28 percent.
8. The winding wire for a nuclear power plant control rod drive mechanism according to claim 1, wherein: the cross section of the conductor is circular.
9. The winding wire for a nuclear power plant control rod drive mechanism according to claim 1, wherein: the diameter of the conductor is 1.0 mm-3.0 mm.
10. The winding wire for a nuclear power plant control rod drive mechanism according to claim 1, wherein: the first winding covering and the second winding covering are both 0.08 mm-0.10 mm in thickness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022805538.3U CN213752013U (en) | 2020-11-27 | 2020-11-27 | Winding wire for control rod driving mechanism of nuclear power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022805538.3U CN213752013U (en) | 2020-11-27 | 2020-11-27 | Winding wire for control rod driving mechanism of nuclear power station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213752013U true CN213752013U (en) | 2021-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022805538.3U Active CN213752013U (en) | 2020-11-27 | 2020-11-27 | Winding wire for control rod driving mechanism of nuclear power station |
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| Country | Link |
|---|---|
| CN (1) | CN213752013U (en) |
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- 2020-11-27 CN CN202022805538.3U patent/CN213752013U/en active Active
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