CN1230835C - Thermal insulative high-temperature superconductive cable with double-layer cooling channel structure - Google Patents
Thermal insulative high-temperature superconductive cable with double-layer cooling channel structure Download PDFInfo
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- CN1230835C CN1230835C CNB031200168A CN03120016A CN1230835C CN 1230835 C CN1230835 C CN 1230835C CN B031200168 A CNB031200168 A CN B031200168A CN 03120016 A CN03120016 A CN 03120016A CN 1230835 C CN1230835 C CN 1230835C
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- 238000001816 cooling Methods 0.000 title claims abstract description 57
- 238000009413 insulation Methods 0.000 claims abstract description 48
- 239000010410 layer Substances 0.000 claims abstract description 25
- 239000011241 protective layer Substances 0.000 claims abstract description 8
- 239000004065 semiconductor Substances 0.000 claims abstract description 4
- 238000010992 reflux Methods 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- -1 screen Substances 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 6
- 238000002955 isolation Methods 0.000 abstract 2
- 230000007613 environmental effect Effects 0.000 abstract 1
- 238000005057 refrigeration Methods 0.000 abstract 1
- 230000002411 adverse Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- 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)
Abstract
The present invention relates to a thermal isolation high temperature superconductive cable with a double-layer cooling channel structure, which comprises a supporting tube, multiple layers of superconductive wires wound outside the supporting tube, a low temperature retainer, a semiconductor layer, an electric insulation layer, a shielding layer and a protective layer from inside to outside, wherein an annular space for a refrigeration agent to pass through is formed between the multiple layers of superconductive wires and the low temperature retainer, and the annular space is communicated with a central space of the supporting tube at the end of the cable so as to form a double-layer cooling channel. The present invention can ensure that a three-phase cable has uniform power transmission characteristics and a low temperature system is arranged in a centralized mode without using a special return channel, and meantime ensure that a cable system has compact structure and reduces environmental heat leakage, namely that the total loss is reduced, so that the present invention reduces initial investment and improves the combination properties of the thermal isolation high temperature superconductive cable.
Description
Technical field
The present invention relates to a kind of thermal insulation high-temperature superconductive cable, particularly a kind of thermal insulation hyperconductive cable and cooling means thereof with double-deck cooling duct structure.
Background technology
Compare with traditional cable, hyperconductive cable has the advantages that energy consumption is little, occupation of land is little, initial cost is big, this mainly is that current situation by the characteristic of superconducting wire and low temperature industry is determined that these two factors do not have very big change to the hyperconductive cable Effect on Performance in a short time.On present production technology level basis, it is to select to be suitable for the cooling duct of hyperconductive cable own characteristic that the design producer improves one of main method that the comprehensive the subject of knowledge and the object of knowledge of hyperconductive cable takes.
The cold insulation high-temperature superconductive cable is made up of stay pipe, multilayer superconducting line, low temperature electric insulation layer, superconducting shielding layer, cryostat and external protection from inside to outside successively.The thermal insulation high-temperature superconductive cable is made up of stay pipe, multilayer superconducting line, cryostat, electric insulation layer, screen and external protection from inside to outside successively.The two is compared, and the electric insulation layer of thermal insulation high-temperature superconductive cable is in room temperature state, and is identical with normal cable, and the electric insulation layer of cold insulation high-temperature superconductive cable is in low temperature environment, needs special electrical insulating material.
No matter cold insulation still is the thermal insulation high-temperature superconductive cable, can there be different forms the cooling duct, as: at present, the cold insulation high-temperature superconductive cable that Germany Simense (Fig. 6) and U.S. Southwire (Fig. 7) succeed in developing all adopts double-deck adverse current cooling duct structure, the cold insulation high-temperature superconductive cable that Japan succeeds in developing is three core three-phase structures, adopt double-deck concurrent flow cooling duct, double-deck adverse current cooling duct is developed at present; The thermal insulation high-temperature superconductive cable that Denmark NKT, Pirelli company, Detroit succeed in developing, as the patent WO0133578A1 and the WO0133579A1 of NKT application, that all adopt is single channel cooling structure (Fig. 8).Various cooling ducts structure is compared, and the major advantage of single channel structure is simple, reliable; But for threephase cable, this structure or need set up special return flow line (increase initial cost and area occupied, energy consumption increases) or can not guarantee the threephase cable transmission performance evenly; Because the superconducting wire both sides all have cold-producing medium to pass through, double-deck concurrent flow cooling structure is more much better than the cooling effect of single channel cooling structure, but same existence need be set up special return flow line or can not be guaranteed the uniform problem of threephase cable transmission performance; Double-deck adverse current cooling structure then can address this problem, and guarantees that promptly the transmission of electricity uniformity of threephase cable does not need to set up special return flow line again, reduces simultaneously to take up an area of space and initial cost, and environment leaks heat also to be reduced, thereby improves the combination property of hyperconductive cable.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art and defective,, the combination property of thermal insulation high-temperature superconductive cable is further enhanced for the thermal insulation high-temperature superconductive cable provides a kind of better cooling duct.
For reaching above-mentioned purpose; the present invention proposes a kind of thermal insulation hyperconductive cable with double-deck cooling duct structure; it comprises stay pipe from inside to outside, wound multi superconducting line, cryostat and semiconductor layer, electric insulation layer, screen, water-resistant liner layer and the protective layer of outside again outside it; one annular space that supplies cold-producing medium to pass through is arranged between multilayer superconducting line and cryostat; this annular space communicates with the stay pipe central space in the end of cable, thereby forms double-deck cooling duct.
Described cable can be single-phase cable of single core or three core threephase cables.
The outside of each core of described three core threephase cables does not have separately independently water-resistant liner layer and protective layer, but the shared same external protection of three-core cable.
For reaching above-mentioned purpose, the present invention also provides a kind of described cooling means with thermal insulation hyperconductive cable of double-deck cooling duct structure that is used for, and the type of flow of described cold-producing medium in the stay pipe central space and in the annular space is reflux type or concurrent flow mode.
Described reflux type is that cold-producing medium self-supporting tube hub space enters, and returns from annular space.
Described reflux type is that cold-producing medium enters from annular space, returns from the stay pipe central space.
Described concurrent flow mode is after cold-producing medium enters cable, and a part is passed through by the stay pipe central space, and another part is passed through by annular space.
Effect of the present invention is, for the thermal insulation high-temperature superconductive cable, a kind of better cooling duct is provided, especially adopt novel double-layer adverse current cooling duct structure, do not need to adopt special return flow line can realize that promptly threephase cable transmission of electricity characteristic is even, cryogenic system centralized layout, make that simultaneously this body structure of cable system is compact more, environment leaks heat and reduces, be that total losses reduce, thereby initial cost is reduced, improved the combination property of thermal insulation high-temperature superconductive cable.
Description of drawings
Fig. 1 is the single-phase cross sectional representation with thermal insulation high-temperature superconductive cable embodiment of double-deck cooling duct structure of the single core of the present invention;
Fig. 2 has the cross sectional representation of the thermal insulation high-temperature superconductive cable embodiment of double-deck cooling duct structure for the present invention's three core three-phases;
Fig. 3 has one of reflux type in the cooling means of thermal insulation high-temperature superconductive cable of double-deck cooling duct structure schematic diagram;
Fig. 4 is two schematic diagrames with the reflux type in the cooling means of thermal insulation high-temperature superconductive cable of double-deck cooling duct structure;
Fig. 5 is the concurrent flow mode schematic diagram that has in the cooling means of thermal insulation high-temperature superconductive cable of double-deck cooling duct structure;
The cross sectional representation of the cold insulation high-temperature superconductive cable that Fig. 6 succeeds in developing for prior art Germany Simense;
The schematic perspective view of the cold insulation high-temperature superconductive cable that Fig. 7 succeeds in developing for prior art U.S. Southwire;
The schematic perspective view of the thermal insulation high-temperature superconductive cable that Fig. 8 succeeds in developing for prior art Denmark NKT.
Embodiment
Describe the specific embodiment of the present invention in detail below in conjunction with drawings and Examples.
As shown in Figure 1; the embodiment of the single-phase cable of single core of a kind of thermal insulation high-temperature superconductive cable with double-deck cooling duct structure that proposes for the present invention; it comprises stay pipe 1 from inside to outside, wound multi superconducting line 2, cryostat 3 and semiconductor layer 4, electric insulation layer 5, screen 6, water-resistant liner layer 7 and the protective layer 8 of outside again outside it; one annular space 9 that supplies cold-producing medium to pass through is arranged between multilayer superconducting line 2 and cryostat 3; this annular space 9 communicates with stay pipe central space 10 in the end of cable, thereby forms double-deck cooling duct.
As depicted in figs. 1 and 2, described cable can be single-phase cable of single core or three core threephase cables.
As shown in Figure 2, be the embodiment of three core threephase cables, the outside of each core of described three core threephase cables does not have separately independently water-resistant liner layer 7 and protective layer 8, but the shared same external protection of three-core cable comprises water-resistant liner layer 7 ' and protective layer 8 '.
The invention provides a kind of described cooling means with thermal insulation high-temperature superconductive cable of double-deck cooling duct structure that is used for, the type of flow of described cold-producing medium in stay pipe central space 10 and in the annular space 9 is reflux type or concurrent flow mode.
As shown in Figure 3, be one of reflux type in the cooling means of thermal insulation high-temperature superconductive cable with double-deck cooling duct structure, described reflux type is that cold-producing medium self-supporting tube hub space 10 enters, and returns from annular space 9.
As shown in Figure 4, be two of the reflux type in the cooling means of thermal insulation high-temperature superconductive cable with double-deck cooling duct structure, described reflux type is that cold-producing medium enters from annular space 9, returns from stay pipe central space 10.
As shown in Figure 5, be the concurrent flow mode in the cooling means of thermal insulation high-temperature superconductive cable with double-deck cooling duct structure, described concurrent flow mode is after cold-producing medium enters cable, and a part is passed through by stay pipe central space 10, and another part is passed through by annular space 9.
By above-described each embodiment as seen, the present invention is for the thermal insulation high-temperature superconductive cable, a kind of better cooling duct is provided really, especially adopt novel double-layer adverse current cooling duct structure, do not need to adopt special return flow line can realize that promptly threephase cable transmission of electricity characteristic is even, cryogenic system centralized layout, compactness, minimizing environment leak heat more to make the cable system structure, reduce total losses, initial cost is reduced, and improve the combination property of thermal insulation high-temperature superconductive cable.
Claims (7)
1. thermal insulation hyperconductive cable with double-deck cooling duct structure; it comprises stay pipe from inside to outside, wound multi superconducting line, cryostat and semiconductor layer, electric insulation layer, screen, water-resistant liner layer and the protective layer of outside again outside it; it is characterized in that; one annular space that supplies cold-producing medium to pass through is arranged between multilayer superconducting line and cryostat; this annular space communicates with the stay pipe central space in the end of cable, thereby forms double-deck cooling duct.
2. the thermal insulation hyperconductive cable with double-deck cooling duct structure as claimed in claim 1 is characterized in that, described cable is single-phase cable of single core or three core threephase cables.
3. the thermal insulation hyperconductive cable with double-deck cooling duct structure as claimed in claim 2; it is characterized in that; the outside of each core of described three core threephase cables does not have separately independently water-resistant liner layer and protective layer, but the shared same external protection of three-core cable.
4. one kind is used for the described cooling means with thermal insulation hyperconductive cable of double-deck cooling duct structure of claim 1, it is characterized in that, the type of flow of described cold-producing medium in the stay pipe central space and in the annular space is reflux type or concurrent flow mode.
5. the cooling means with thermal insulation hyperconductive cable of double-deck cooling duct structure as claimed in claim 4 is characterized in that, described reflux type is that cold-producing medium self-supporting tube hub space enters, and returns from annular space.
6. the cooling means with thermal insulation hyperconductive cable of double-deck cooling duct structure as claimed in claim 4 is characterized in that, described reflux type is that cold-producing medium enters from annular space, returns from the stay pipe central space.
7. the cooling means with thermal insulation hyperconductive cable of double-deck cooling duct structure as claimed in claim 4, it is characterized in that, described concurrent flow mode is after cold-producing medium enters cable, and a part is passed through by the stay pipe central space, and another part is passed through by annular space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031200168A CN1230835C (en) | 2003-03-10 | 2003-03-10 | Thermal insulative high-temperature superconductive cable with double-layer cooling channel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB031200168A CN1230835C (en) | 2003-03-10 | 2003-03-10 | Thermal insulative high-temperature superconductive cable with double-layer cooling channel structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1530967A CN1530967A (en) | 2004-09-22 |
| CN1230835C true CN1230835C (en) | 2005-12-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB031200168A Expired - Lifetime CN1230835C (en) | 2003-03-10 | 2003-03-10 | Thermal insulative high-temperature superconductive cable with double-layer cooling channel structure |
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Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4835821B2 (en) * | 2004-11-02 | 2011-12-14 | 住友電気工業株式会社 | Superconducting cable |
| KR100706494B1 (en) * | 2006-01-20 | 2007-04-10 | 엘에스전선 주식회사 | Superconducting cable |
| WO2007116520A1 (en) * | 2006-04-10 | 2007-10-18 | Sumitomo Electric Industries, Ltd. | Superconducting cable |
| EP2360702B1 (en) * | 2009-11-30 | 2012-08-29 | Nexans | Superconducting cable |
| EP2387043A1 (en) * | 2010-05-10 | 2011-11-16 | Nexans | Transmission system with a superconducting cable |
| CN102117679A (en) * | 2011-03-15 | 2011-07-06 | 无锡市长城电线电缆有限公司 | Shielding layer material of high-temperature super-conductive cable and knitting method thereof |
| JP5810925B2 (en) * | 2012-01-10 | 2015-11-11 | 住友電気工業株式会社 | Room-temperature insulated superconducting cable connection structure |
| GB2504144B (en) * | 2012-07-20 | 2014-07-16 | Siemens Plc | Superconducting joints |
| WO2014057565A1 (en) * | 2012-10-11 | 2014-04-17 | 住友電気工業株式会社 | Method for testing cable core for superconducting cable, and cooling container |
| CN107228250A (en) * | 2017-06-05 | 2017-10-03 | 安徽万瑞冷电科技有限公司 | The cryogenic fluid transfer pipeline and its application method of a kind of cold screen of band |
| CN109559850A (en) * | 2018-12-07 | 2019-04-02 | 深圳供电局有限公司 | Direct current bipolar superconducting cable electrifying conductor |
| CN109637739B (en) * | 2018-12-20 | 2024-02-09 | 深圳供电局有限公司 | Quasi-isotropic high current-carrying superconducting cable conductor |
| CN110600192B (en) * | 2019-09-24 | 2021-03-30 | 深圳供电局有限公司 | Superconducting cable |
| CN111878238A (en) * | 2020-07-23 | 2020-11-03 | 西北工业大学 | Double-layer cooling channel for reducing temperature of aircraft component |
| CN113077935B (en) * | 2021-03-23 | 2022-05-20 | 广东电网有限责任公司电力科学研究院 | Superconducting cable refrigeration medium spiral transmission structure and superconducting cable |
| CN113506653A (en) * | 2021-07-02 | 2021-10-15 | 中天集团上海超导技术有限公司 | Compact superconducting cable and cable assembly with same |
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2003
- 2003-03-10 CN CNB031200168A patent/CN1230835C/en not_active Expired - Lifetime
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| CN1530967A (en) | 2004-09-22 |
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Address after: 102600 West A, floor 3, building B, No. 7, Rongchang East Street, Beijing Economic and Technological Development Zone, Daxing District, Beijing Patentee after: Beijing innopower superconductor power technology Co.,Ltd. Address before: Longsheng industrial park, 7 No. 100176 Beijing Rongchang economic and Technological Development Zone East Patentee before: Beijing Innopower Superconductor Cable Co.,Ltd. |
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Effective date of registration: 20191225 Address after: Yunda economic and Technological Development Zone in Yunnan province Kunming City 650000 West Road No. 105 Patentee after: YUNNAN ELECTRIC POWER TEST & RESEARCH INSTITUTE (GROUP) Co.,Ltd. Address before: 102600 West A, floor 3, building B, No. 7, Rongchang East Street, Beijing Economic and Technological Development Zone, Daxing District, Beijing Patentee before: Beijing innopower superconductor power technology Co.,Ltd. |
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