CN102103905B - Method for eliminating defects of main insulation of cold insulation superconducting cable and system structure for realizing method - Google Patents
Method for eliminating defects of main insulation of cold insulation superconducting cable and system structure for realizing method Download PDFInfo
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- CN102103905B CN102103905B CN200910241995XA CN200910241995A CN102103905B CN 102103905 B CN102103905 B CN 102103905B CN 200910241995X A CN200910241995X A CN 200910241995XA CN 200910241995 A CN200910241995 A CN 200910241995A CN 102103905 B CN102103905 B CN 102103905B
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- 238000009413 insulation Methods 0.000 title claims abstract description 102
- 238000000034 method Methods 0.000 title claims abstract description 35
- 230000007547 defect Effects 0.000 title abstract description 4
- 239000007789 gas Substances 0.000 claims abstract description 40
- 239000004020 conductor Substances 0.000 claims abstract description 30
- 238000010438 heat treatment Methods 0.000 claims abstract description 12
- 239000011261 inert gas Substances 0.000 claims abstract description 12
- 238000006073 displacement reaction Methods 0.000 claims abstract description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 25
- 229910052757 nitrogen Inorganic materials 0.000 claims description 14
- 238000005086 pumping Methods 0.000 claims description 14
- 238000007664 blowing Methods 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 8
- 239000002184 metal Substances 0.000 claims description 7
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims description 4
- 238000011065 in-situ storage Methods 0.000 claims description 3
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 3
- 229910052786 argon Inorganic materials 0.000 claims description 2
- 239000001307 helium Substances 0.000 claims description 2
- 229910052734 helium Inorganic materials 0.000 claims description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 2
- 229910052754 neon Inorganic materials 0.000 claims description 2
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 claims description 2
- 230000008030 elimination Effects 0.000 abstract description 2
- 238000003379 elimination reaction Methods 0.000 abstract description 2
- 210000000214 mouth Anatomy 0.000 description 23
- 230000004888 barrier function Effects 0.000 description 8
- 239000010410 layer Substances 0.000 description 7
- 239000007788 liquid Substances 0.000 description 5
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000007598 dipping method Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229920003020 cross-linked polyethylene Polymers 0.000 description 2
- 239000004703 cross-linked polyethylene Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G15/00—Cable fittings
- H02G15/34—Cable fittings for cryogenic cables
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/60—Superconducting electric elements or equipment; Power systems integrating superconducting elements or equipment
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- Superconductors And Manufacturing Methods Therefor (AREA)
- Containers, Films, And Cooling For Superconductive Devices (AREA)
Abstract
The invention discloses a method for eliminating defects of main insulation of a cold insulation superconducting cable. The method comprises the following steps of: assembling a cable body, and connecting the two ends of the cable body with cable terminals or cable end sockets in a sealed mode; connecting a conductor which passes through the cable body with an external power supply by using a group of current leads, switching on the external power supply, heating, and ensuring that the heating temperature of the heated cable body is between 50 and 180 DEG C; vacuumizing and detecting vacuum degree; keeping the heating temperature stable until absolute vacuum degree in a cable cavity reaches the order of magnitude of below 10<-1>Pa, charging inert gas into the cable cavity to ensure that the absolute vacuum degree reaches over 0.1Mpa, and maintaining for 2 to 24 hours; repeating the steps to accomplish gas displacement; and maintaining the seal, and continuously charging the inert gas to ensure that gas pressure in the cable cavity is higher than the atmosphere to accomplish the defect elimination of the main insulation of the cable. A system structure for realizing the method comprises a superconducting cable core, a low temperature thermostat and the cable terminals or the end sockets special for cables, wherein a group of gas inlets/outlets are formed in the cable cavity which is formed by the cable terminals or the end sockets special for the cables and the low temperature thermostat.
Description
Technical field
The invention belongs to the superconducting power technical applications, relate in particular to the system configuration that disappearing of a kind of cold insulation hyperconductive cable lacks method and realize this method.
Background technology
The cable core of cold insulation hyperconductive cable has the transmission of electricity structure of independent completion, comprises interior stay pipe, superconducting conductor, insulating barrier and screen, and the low temperature environment of its work is provided by thermostat.During the operation of cold insulation hyperconductive cable, its main insulation is in (about 77K) in the low temperature liquid nitrogen environment.Because rubber, crosslinked polyethylene insulating material such as (XLPE) can't use under liquid nitrogen temperature, the main insulation of cold insulation hyperconductive cable can not be used this type material, therefore also just can't adopt extrusion process to make integral insulation.At present, the main insulation of cold insulation hyperconductive cable is used insulating paper strip usually, adopts the mode of paper bag insulation to make.
The paper bag insulation is meant the insulating paper strip spiral winding successively with certain width, makes to have the method for certain thickness cable main insulating layer, and this is widely used in oil compression cable.Because the main insulation that this method is made is not the integral insulation structure, insulating barrier leaves a large amount of air gaps inevitably in the course of processing.Simultaneously, insulating paper strip contains wood-fibred, and porosity is higher, absorbs moisture easily, and it is serious to be affected by the external environment.Air gap and moisture are to cause partial discharge in the main insulation, quicken the key factor of ageing of insulation.Therefore, after the coiling of accomplishing cable insulation, also must be through the series of process process, insulation defects such as air gap in the elimination insulating barrier and moisture.
Adopt dry, insulating oil impregnating technical process in the making of conventional oil compression cable, use large-scale vacuumize dipping stove to accomplish cable main insulation and disappear scarce.The cable that at first will accomplish the insulation coiling heats in the environment of vacuum, dry, dehydration, uses insulating oil to carry out vacuum impregnation then, can remove air gap and moisture in the insulating barrier like this.After this, under the condition of air-isolation, make the external protection of cable, accomplish the making of oil compression cable.
Yet the making of cold insulation hyperconductive cable main insulation can not be adopted same treatment process.At first, cold insulation hyperconductive cable cable core has cryostat outward, and it had both played the circulation liquid nitrogen is the effect that cable provides the low-temperature working environment, plays the effect of cable covering again.Cryostat is formed by inside and outside two bellows suits, and interlayer is a vacuum, plays adiabatic effect.Because the structure of cryostat is very complicated; No matter be that the original position extruding is made on cable conductor; Perhaps cryostat is made back cable conductor poling assembling, and in making assembling process, cable conductor all will contact atmosphere inevitably; Insulating barrier can absorb airborne moisture, causes the deterioration of insulation property.Secondly, insulating oil can't use in the environment of liquid nitrogen, and this is because insulating oil can solidify at low temperatures, even if cable is through flooding, and also can be owing to acting on of insulating oil shrinkage stays new air gap in the insulation.And cable is when normally moving, and insulating oil can't be replenished, and can't fill the insulation air gap of new formation.In sum, the insulating barrier of cold insulation hyperconductive cable can not lack technology according to disappearing of conventional oil compression cable and carry out drying, dipping after accomplishing coiling, to remove defectives such as the air gap that has a strong impact on the cable insulation ability in the main insulation and moisture.
Summary of the invention
The scarce method that disappears that the purpose of this invention is to provide a kind of cold insulation hyperconductive cable main insulation.
Another object of the present invention provides a kind of cold insulation hyperconductive cable main insulation and disappears and lack the system configuration of method.
For realizing above-mentioned purpose, the present invention takes following design:
A kind of scarce method that disappears of cold insulation hyperconductive cable main insulation, its method step is following:
1) hyperconductive cable cable core and the cryostat that will accomplish the main insulation coiling assemble, and form cable body;
2) two ends of cable body and the cable end socket of cable termination or special use are tightly connected, cryostat and terminal or cable end socket have formed the cable cavity, and cable conductor is sealed in the cable cavity; Wherein, any or two on cable termination, special-purpose end socket and the cryostat with upper-part on independence or be respectively provided to a few vacuum pumping mouth and at least one blowing mouth, or at least one group of gas interface;
The electric conductor that 3) will run through cable body through one group of current feed is connected with external power;
4) energising heating makes heated cable body heating-up temperature in 50-180 ℃ scope; Simultaneously, use at least one vacuum pump the cable cavity to be vacuumized through vacuum pumping mouth or gas interface, and the vacuum degree in the detection streamer cavity;
5) keep the stable of heating-up temperature, the absolute vacuum degree reaches 10 in the cable cavity
-1The Pa order of magnitude or lower, and keep fluctuation did not take place more than 2 hours;
6) in the cable cavity, charge into purity be 99.9% and more than inert gas, make that the absolute vacuum degree reaches more than the 0.1Mpa in the cable cavity, kept 2-24 hour;
7) the recirculation repeating step 4) to 6) 2-10 time, reach the purpose of the contained gas of cable main insulating layer being replaced with nitrogen or other inert gases, accomplish gas displacement;
8) under the prerequisite that keeps cable cavity sealing, continue with purity be 99.9% and above inert gas charge in the cable cavity, and make its internal gas pressure be higher than atmospheric pressure;
9) it is scarce to accomplish disappearing of cable main insulation.
The said electric conductor that runs through cable body is the cable conductor in the cable conductor; Or be stay pipe in the metal; Or be the metal inner surface of cryostat; Or be the metal outer wall of cryostat.
The two ends of described cable body are to be connected with cable termination and to form the state of accomplish installing, and the original position of then having accomplished cable main insulation disappears scarce.Two ends like described cable body all are connected with the cable end socket, carry out the secondary in-situ treatment when then assembling with the terminal again, and recirculation repeats above-mentioned steps 4), step 5), disappear scarce until the original position of accomplishing cable main insulation.
A kind ofly realize that aforementioned cold insulation hyperconductive cable main insulation disappears and lack the system configuration of method; Include hyperconductive cable cable core and the cryostat of accomplishing the main insulation coiling; The two ends of cable body and cable termination or special-purpose cable end socket are tightly connected; Cryostat and terminal or cable end socket form the cable cavity, and cable conductor is sealed in the cable cavity; Wherein, at least one vacuum pumping mouth and at least one blowing mouth are set on upper-part any or two on cable termination, special-purpose end socket and the cryostat, or at least one gas interface; And be connected with external power through the electric conductor that one group of current feed will run through cable body.
The present invention utilizes the characteristics of cold insulation hyperconductive cable self structure and manufacture craft, after accomplishing the assembling of cold insulation hyperconductive cable, the main insulation of cable disappeared to lack handles, its be particularly useful for voltage levels cold insulation hyperconductive cable main insulation disappear scarce.
Advantage of the present invention is:
1, the inventive method is through the improvement to the process of improvement and the enforcement of the cable cavity structure after the assembling; Can solve effectively in the preparation process of cold insulation hyperconductive cable; Main insulation contacts with air and the insulating material that brings absorbs moisture problem, and solution can't be got rid of the problem of main insulation mesopore with the insulating oil dipping.
2, owing to avoided using large-scale vacuumize, impregnating equipment; Simplified technology; So reduced the cable cost of manufacture greatly; Lack handling for disappearing of cold insulation hyperconductive cable main insulation provides a kind of low cost, process program easily, the meaning important to being manufactured with of cold insulation hyperconductive cable.
Description of drawings
Fig. 1 is a cold insulation hyperconductive cable assembly structure sketch map of the present invention.
Fig. 2 has the cold insulation hyperconductive cable body assembly structure sketch map of private cable end socket for the present invention.
Below in conjunction with accompanying drawing and specific embodiment invention is explained further details:
Embodiment
For realizing the scarce method that disappears of cold insulation hyperconductive cable main insulation of the present invention; At first tackle the new in addition design of cold insulation hyperconductive cable assembly structure, as shown in Figure 1, at first; Keep former main body assembly structure form; Promptly by being connected of hyperconductive cable body (being made up of with cable cryostat 2 hyperconductive cable cable core 1) and cable termination 3 (containing cable termination with sealing flange 4), cable termination 3 is connected through a sealing flange 4 with cable cryostat 2, forms the cable cavity of a sealing.The cable cavity is the liquid nitrogen stream circulation passage during hyperconductive cable operation, for cable conductor provides low temperature environment.
Cable body can also be connected with current feed with the cable end socket 5 of special use except being connected with cable termination, and cable conductor is sealed in the cable cryostat, and is as shown in Figure 2.
Compare with cold insulation hyperconductive cable in the past, the cold insulation hyperconductive cable that the present invention discloses has at least one group of gas inlet-outlet in the cable cavity of cable termination 3 (containing sealing flange) or special-purpose end socket 5 of cable and cable cryostat composition; This group of gas inlet-outlet can be the combination of at least one vacuum pumping mouth 6 and at least one blowing mouth 7, or has the gas interface (substituting one group of vacuum pumping mouth and blowing mouth simultaneously) that at least one not only can be used for vacuumizing but also can be used for importing gas.Can, the cold insulation cable realize the cable cavity is vacuumized or charge into gas after accomplishing assembling.Vacuum pumping mouth, blowing mouth or gas interface can be respectively or independently are arranged on cable termination, special-purpose end socket and the cryostat.According to the volume size of cable cavity and the rate requirement that vacuumizes, inflates, one or more vacuum pumping mouthes, blowing mouth or gas interface can be set.
The scarce method that disappears for further embodiment of the present invention cold insulation hyperconductive cable main insulation; Cable body of the present invention is connected with one group of current feed 9; This current feed can link to each other with the conductor in the cable body; Also can link to each other with other electric conductor that runs through cable body, as with cable conductor in the electric conductor such as metal inner surface or outer wall of metallic support pipe, cryostat be connected.Current feed can be an energising circuit, also can be many energising circuits.Current feed is connected with external power supply, and external power provides and exchanges or direct current, feeds certain interchange or direct current at room temperature for the electric conductor in the cable body, makes it produce Joule heat, reaches the heating cable body, the purpose of dry main insulation.
Utilize above-mentioned assembly structure design can realize disappearing of cold insulation hyperconductive cable cable core main insulation lacked processing, the practical implementation method step is following:
1) hyperconductive cable cable core and the cryostat of accomplishing the main insulation coiling assemble, and form cable body.
2) two ends with cable body are connected with cable termination or special-purpose cable end socket.Cryostat and terminal (or cable end socket) have formed the cable cavity; Cable conductor is sealed in the cable cavity; Wherein, Independence or be respectively provided to a few vacuum pumping mouth, at least one blowing mouth on any or a plurality of parts on cable termination, special-purpose end socket and the cryostat, or at least one gas interface.(both can on any parts on cable termination, special-purpose end socket and the cryostat, independently establish one or more vacuum pumping mouthes, blowing mouth or gas interface; Can also on cable termination, special-purpose end socket and cryostat, establish vacuum pumping mouth, blowing mouth or gas interface simultaneously; Form is not limit, as long as on overall assembly structure, have vacuum pumping mouth, blowing mouth or gas interface at least.)
The electric conductor that 3) will run through cable body with one group of current feed is connected with external power, but forms heating circuit.
4) energising heating, heating-up temperature is a temperature upper limit cable body is not caused the maximum temperature of fire damage, is arranged in 50-180 ℃ the scope; In to cable body energising heating, use at least one vacuum pump the cable cavity to be vacuumized, and use the vacuum degree in the vacuum meter detection streamer cavity through vacuum pumping mouth or gas interface.
5) under the stable situation of heating-up temperature, the absolute vacuum degree reaches 10 in the cable cavity
-1The Pa order of magnitude, perhaps lower, and keep fluctuation did not take place more than 2 hours, can think that cable main insulation accomplished drying and dehydrating.
6) in the cable cavity, charge into purity be 99.9% and more than nitrogen or other inert gases, like helium, neon, argon etc., the absolute vacuum degree reached or, kept 2-24 hour a little more than 0.1MPa (i.e. 1 atmospheric pressure);
7) carry out step 4,5 again.Through 2-10 step 4,5 repetition, reach the purpose of the contained gas of cable main insulating layer being replaced with nitrogen or other inert gases.
8) accomplish gas displacement after, with purity be 99.9% and above nitrogen or other inert gases charge in the cable cavity.Keep the sealing of cable cavity, and make its internal gas pressure be higher than atmospheric pressure, do not get in the cable cavity to guarantee outside air.
If the cold insulation hyperconductive cable accomplished installation, can to realize that the original position of cable main insulation disappears scarce for 4-6 set by step, after this can come into operation.If cable body also can disappear to lack to cable main insulation and handle because preservation, transportation or other reasons only are connected with end socket through step 4-6.Cable body with the terminal assembling process in, cable conductor is ingress of air momently.Therefore after accomplishing installation, also need carry out the secondary in-situ treatment.
Below in conjunction with specific embodiment the present invention is further specified:
One single-phase 3 meters, the main insulation of 10kV/1500A cold insulation hyperconductive cable are carried out original position to disappear to lack and handles.Be designed with 1 gas interface on the cable termination, promptly can be used for vacuumizing and can be used for importing the gas of certain pressure, the concrete operations step is following:
1. will accomplish the long hyperconductive cable cable core of 3m and the cryostat assembling of main insulation coiling, form cable body.
2. the two ends with cable body are connected with cable termination.Cryostat and cable termination have formed the cable cavity, and cable conductor is sealed in the cable cavity.
Two current feeds respectively with the hyperconductive cable cable core in the superconducting conductor layer be connected with the superconducting shielding layer.External power provides 0 ~ 15A direct current for respectively superconducting conductor layer and superconducting shielding layer through current feed, and even heating cable body reaches the purpose of dry main insulation.Temperature-rise period should be slow, and concentrate the warm area constant temperature number emit hour at gas, evenly emits to guarantee the gas slowly in the insulating barrier, can in insulating barrier, not form bubble owing to gas produces too fast, destroys insulation system.Maximum heating temperature is set to 120-150 ℃.
4. in the energising heating, use an oil-sealed rotary pump cable cavity to be vacuumized, and use the vacuum degree in the vacuum meter detection streamer cavity through vacuumizing mouth.Be stabilized in heating-up temperature under 120 ℃ the situation, the absolute vacuum degree reaches 5 * 10 in the cable cavity
-1Below the Pa, and keep fluctuation did not take place in 2 hours, can think that cable main insulation accomplished drying and dehydrating.
5. in the cable cavity, charge into purity and be 99.9% and more than nitrogen, the absolute vacuum degree is reached or a little more than 0.1Mpa.Carry out step 3,4 again.After the repetition through 2 step 3-5, accomplish with nitrogen the gas displacement in the cable main insulation.
6. be that 99.9% nitrogen charges in the cable cavity with purity.Keep the sealing of cable cavity, and make its internal gas pressure be higher than atmospheric pressure, do not get into the cable cavity to guarantee outside air.
Through above step, accomplished single-phase 3 meters, the main insulation of 10kV/1500A cold insulation hyperconductive cable and carried out original position and disappear scarce.
Claims (6)
1. the scarce method that disappears of a cold insulation hyperconductive cable main insulation is characterized in that method step is following:
1) hyperconductive cable cable core and the cryostat that will accomplish the main insulation coiling assemble, and form cable body;
2) two ends with cable body are tightly connected with cable termination or special-purpose cable end socket simultaneously, and cryostat and cable termination or cable end socket have formed the cable cavity, and cable conductor is sealed in the cable cavity; Wherein, independence or be respectively provided to few one group of gas inlet-outlet on any or the plural parts on cable termination, special-purpose end socket and the cryostat;
The electric conductor that 3) will run through cable body through one group of current feed is connected with external power;
4) energising heating makes heated cable body heating-up temperature in 50-180 ℃ scope; Simultaneously, use at least one vacuum pump the cable cavity to be vacuumized through vacuum pumping mouth or gas interface, and the vacuum degree in the detection streamer cavity;
5) keep the stable of heating-up temperature, the absolute vacuum degree reaches 10 in the cable cavity
-1Below the Pa order of magnitude, and keep fluctuation did not take place more than 2 hours;
6) in the cable cavity, charge into purity be 99.9% and more than inert gas, make that the absolute vacuum degree reaches more than the 0.1Mpa in the cable cavity, kept 2-24 hour;
7) the recirculation repeating step 4) to 6) 2-10 time, reach the purpose of the contained gas of cable main insulating layer being replaced with nitrogen or other inert gases, accomplish gas displacement;
8) under the prerequisite that keeps cable cavity sealing, continue with purity be 99.9% and above inert gas charge in the cable cavity, and make its internal gas pressure be higher than atmospheric pressure;
9) it is scarce to accomplish disappearing of cable main insulation.
2. the scarce method that disappears of cold insulation hyperconductive cable main insulation according to claim 1 is characterized in that: the two ends of described cable body are to be connected with cable termination and to form the state of accomplish installing, and the original position of then having accomplished cable main insulation disappears scarce.
3. the scarce method that disappears of cold insulation hyperconductive cable main insulation according to claim 1; It is characterized in that: the two ends of described cable body all are connected with the cable end socket; Carry out secondary in-situ treatment, recirculation repeating step 4 when then assembling with the terminal again), step 5) disappears scarce until the original position of accomplishing cable main insulation.
4. the scarce method that disappears of cold insulation hyperconductive cable main insulation according to claim 1 is characterized in that: described inert gas is nitrogen, helium, neon or argon gas.
5. the scarce method that disappears of cold insulation hyperconductive cable main insulation according to claim 1 is characterized in that: the said electric conductor that runs through cable body is the cable conductor in the cable conductor, or is stay pipe in the metal; Or be the metal inner surface of cryostat; Or be the metal outer wall of cryostat.
6. the scarce method that disappears of cold insulation hyperconductive cable main insulation according to claim 1 is characterized in that: said one group of gas inlet-outlet is at least one vacuum pumping mouth and at least one blowing mouth; Or gas interface that not only can be used for vacuumizing but also can be used for importing gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910241995XA CN102103905B (en) | 2009-12-18 | 2009-12-18 | Method for eliminating defects of main insulation of cold insulation superconducting cable and system structure for realizing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910241995XA CN102103905B (en) | 2009-12-18 | 2009-12-18 | Method for eliminating defects of main insulation of cold insulation superconducting cable and system structure for realizing method |
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| CN102103905A CN102103905A (en) | 2011-06-22 |
| CN102103905B true CN102103905B (en) | 2012-05-02 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP2589849B1 (en) * | 2011-11-03 | 2014-01-08 | Nexans | Device for compensating for changes in length in superconductor cables |
| CN103213269B (en) * | 2013-04-15 | 2015-10-14 | 浙江秦山电缆有限公司 | Cable cover(ing) vacuum suction device |
| EP2961017A1 (en) * | 2014-06-24 | 2015-12-30 | Nexans | Method and assembly for producing a supraconducting cable system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2682708Y (en) * | 2003-11-04 | 2005-03-02 | 北京云电英纳超导电缆有限公司 | High temperature superconducting power cable terminal |
| CN1610955A (en) * | 2002-04-05 | 2005-04-27 | 住友电气工业株式会社 | Cooling method of super-conducting cable line |
| CN1809900A (en) * | 2003-09-24 | 2006-07-26 | 住友电气工业株式会社 | Super-conductive cable |
| CN1897173A (en) * | 2005-07-14 | 2007-01-17 | 中国科学院电工研究所 | High-voltage isolator for high-temperature superconductive power-supply cable |
-
2009
- 2009-12-18 CN CN200910241995XA patent/CN102103905B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1610955A (en) * | 2002-04-05 | 2005-04-27 | 住友电气工业株式会社 | Cooling method of super-conducting cable line |
| CN1809900A (en) * | 2003-09-24 | 2006-07-26 | 住友电气工业株式会社 | Super-conductive cable |
| CN2682708Y (en) * | 2003-11-04 | 2005-03-02 | 北京云电英纳超导电缆有限公司 | High temperature superconducting power cable terminal |
| CN1897173A (en) * | 2005-07-14 | 2007-01-17 | 中国科学院电工研究所 | High-voltage isolator for high-temperature superconductive power-supply cable |
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| CN102103905A (en) | 2011-06-22 |
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