CN104319056A - Heat shielding structure of cooling device for low-temperature superconducting magnetic field - Google Patents
Heat shielding structure of cooling device for low-temperature superconducting magnetic field Download PDFInfo
- Publication number
- CN104319056A CN104319056A CN201410565525.XA CN201410565525A CN104319056A CN 104319056 A CN104319056 A CN 104319056A CN 201410565525 A CN201410565525 A CN 201410565525A CN 104319056 A CN104319056 A CN 104319056A
- Authority
- CN
- China
- Prior art keywords
- heat insulating
- adiabatic
- thermal insulation
- quilt
- main
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Thermal Insulation (AREA)
- Containers, Films, And Cooling For Superconductive Devices (AREA)
Abstract
The invention provides a heat shielding structure of a cooling device for a low-temperature superconducting magnetic field. The heat shielding structure comprises an upper-portion heat insulating structure and a lower-portion heat insulating structure, an upper heat insulating quilt comprises a main heat insulating quilt and four lateral heat insulating quilts, each of the main heat insulating quilt and the lateral heat insulating quilts is formed by stacking a plurality of layers of reflection screens and heat insulating paper and sewing the same together through sewing lines, the lateral heat insulating quilts are sewn on two sides of the main heat insulating quilt correspondingly through sewing lines respectively, and a certain distance is formed between the two lateral heat insulating quilts on a same side of the main heat insulating quilt. Glass fabric tying belts are sewn on the heat insulating quilts, and the heat shielding structure is divided into the upper portion and the lower portion, thereby being convenient to mount and demount; the upper-portion heat insulating structure and the lower-portion heat insulating structure are wrapped tightly and bundled through the glass fabric tying belts, so that the heat shielding structure is tight in wrapping and high in heat insulating performance; a round hole is formed in the top of each heat insulating structure, and a star-shaped opening is formed in each hole, so that convenience is brought to circuit mounting, and effectiveness in heat insulating is realized; round openings and a protecting cover are arranged on one side of each heat insulating structure, so that convenience is brought to opening of a maintenance hatch cover.
Description
Technical field
The present invention relates to heat-insulating material field, particularly a kind of heat shield structure of cooling device of low temperature superconducting field.
Background technology
General metal material, close in the temperature range of absolute zero, along with the decline of temperature, its resistivity levels off to a limited constant.Some simple metal, alloy and compound etc. are near a certain specific temperature Tc, and resistance suddenly disappears, and this phenomenon is superconductivity, and the material with this performance is called superconductor.In general, the object at about 4.2K with superconductivity is called cryogenic superconductor, and the object that (77K) has a superconductivity under liquid nitrogen temperature is called high-temperature superconductor.
Low-temperature superconducting wire and band are mainly applied under liquid helium temperature (4.2K).Utilize the various characteristics of superconductor, as resistance suddenly disappears, perfect diamganetism, can bear the change of very large supercurrent and the superconductor physical property when superconducting state occurring and changing to normal state in high-intensity magnetic field, low-temperature superconducting wire strip has started to be applied in many science and technology field, and demonstrates outstanding advantage and bright prospects.
Since high-temperature superconductor in 1986 finds, the world will enter new superconduction epoch.High-t_c Superconductivity is if at a series of key areas, the field such as particularly so-called forceful electric power (big current) such as electric power conveying, motor, controlled nuclear fusion, traffic, medical treatment obtains and applies and demonstrate huge superiority, will cause a new technological revolution.Compared with cryogenic superconductor, high temperature superconducting materia equipment is when at least 20K or higher temperature run, and main benefit is relatively more cheap and more reliable refrigeration can realize.Work at more than 20K, high temperature superconducting materia can reduce refrigerator cost and power consumption further, so economically, for above-mentioned various application, high-temperature superconductor is better than cryogenic superconductor comprehensively.Because high-temperature superconductor will operate in higher temperature, now the thermal capacitance of material can greatly increase, and the device simultaneously made can be more stable, and more can allow A.C.power loss.The hts tape of present exploitation and band all can meet the requirement of application.If high-temperature superconductive transformer is by more superior for the transformer made than conventional multifilament Nb3Sn.The magnetic flux density experienced due to superconducting line only has 0.3 ~ 0.5T, adopts high temperature superconducting materia to be suitable.The dielectric strength ratio of high temperature superconducting materia under liquid nitrogen is high under liquid helium, so, the insulation of transformer will be made more to simplify.In addition the conductor losses expection of high-temperature superconductor is very little, so, quench under fault case can be avoided by increase cross-sectional area of conductor is long-pending.After superconducting power transmission line adopts hts tape, the total cost of transmission of electricity can reduce by 15% ~ 30%.
At present, the low temperature environment back-up system of the cryogenic magnetic field of controlled nuclear fusion can adopt liquid helium to cool, the equipment of low temperature environment back-up system mainly cryogenic magnetic field remains in required low temperature environment, and it comprises cooling device and is wrapped in the multiple layer heat insulation structure of cooling device.Heat-insulating material is normally composited by low-temperature thermal insulation paper and radiation shield (aluminium foil or metallized film), and low-temperature thermal insulation paper and radiation shield material interval are arranged.Multiple layer heat insulation structure outside general cooling device is repeatedly wrapped up by low-temperature thermal insulation paper and radiation shield and is formed, and be fixed by cellotape, this parcel mode complicated operation, easily cause parcel imprecision, effect of heat insulation is poor, and there are a lot of connector and maintenance storehouse in cooling device outside, is not easily carrying out opening on heat insulating construction.
Summary of the invention
The present invention seeks to for the above-mentioned technical problem existing for prior art, provide that a kind of structure is simple, good heat-insulation effect, mount and dismount the heat shield structure of the cooling device of low temperature superconducting field easily.
For achieving the above object, the present invention proposes a kind of heat shield structure of cooling device of low temperature superconducting field, it comprises upper thermal barrier structure and lower thermal barrier structure, described upper thermal insulation is included main adiabatic quilt and 4 adiabatic quilts in side, together with described main adiabatic quilt is seamed in by some layers of radiation shield and the staggered folded merga pass sewing thread of sheathing paper respectively with side thermal insulation, described 4 sides are adiabatic by the both sides being seamed in main adiabatic quilt by sewing thread corresponding respectively, main thermal insulation is by separated by a distance between the adiabatic quilt in two sides of the same side, the middle part of the front end of described main adiabatic quilt is provided with a first semicircle opening, and sew up with sewing thread, the both sides of the first semicircle opening are provided with some glass-fiber-fabric bands, the rear portion of described main adiabatic quilt is provided with several circles made by sewing thread, main thermal insulation in circle is equipped with a meter font opening, the rear end of described main adiabatic quilt is provided with an adiabatic bottom, the outside correspondence of the adiabatic quilt in described 4 sides is provided with some glass-fiber-fabric bands, the both sides of described main thermal insulation do not have the position correspondence of the adiabatic quilt in side to be provided with some glass-fiber-fabric bands, lay out under described thermal insulation and be provided with some glass-fiber-fabric bands, adiabatic quilt under described lower thermal barrier structure comprises one, described lower thermal insulation is by identical by size with main thermal insulation, structure is mutually corresponding, together with described lower thermal insulation is seamed in by the staggered folded merga pass sewing thread of some layers of radiation shield and sheathing paper, the front center of lower adiabatic quilt is provided with main thermal insulation by identical the second semicircle opening of first circular open, second semicircle opening both sides are provided with corresponding some glass-fiber-fabric bands, the rear end of lower adiabatic quilt is provided with the some glass-fiber-fabric bands corresponding with the adiabatic bottom of main adiabatic quilt, the both sides of lower adiabatic quilt are provided with glass-fiber-fabric band some with upper thermal barrier structure both sides.
As preferably; it also comprises 4 circular over caps; described over cap interlocks superimposed by some layers of circular radiation shield and sheathing paper; edge is sewed up by sewing thread; the inside edge of over cap is provided with VELCRO; described main thermal insulation is respectively provided with 2 sizes circular open identical with over cap by 2 side thermal insulation of side by upper, and the edge of circular open is sewed up by sewing thread.
The present invention adopt thermal insulation by be sewed with glass-fiber-fabric prick; structure is divided into upper and lower two parts facilitate installation and removal; top and the bottom heat insulating construction is wrapped up tight and is tied up by glass-fiber-fabric band, and parcel is tight, and heat-insulating property is good; heat insulating construction top is provided with circular port; be provided with a meter font opening in hole, both facilitate the installation of circuit, can also be effectively adiabatic; the side of heat insulating construction is provided with circular open and over cap, opening of convenient for maintaining hatchcover.
Accompanying drawing explanation
Fig. 1 be upper thermal barrier structure of the present invention structural representation.
Fig. 2 be lower thermal barrier structure of the present invention structural representation.
Embodiment
Feature of the present invention and advantage will be described in detail by reference to the accompanying drawings by embodiment.
As illustrated in fig. 1 and 2, a kind of heat shield structure of cooling device of low temperature superconducting field, it comprises upper thermal barrier structure 1 and lower thermal barrier structure 2, it is adiabatic by 12 by 11 and 4 sides that described upper thermal insulation is included main thermal insulation, described main thermal insulation by 11 with side is adiabatic to be seamed in by some layers of radiation shield and the staggered folded merga pass sewing thread of sheathing paper respectively by 12 together with, described 4 sides adiabatic by 12 respectively corresponding by sewing thread be seamed in main thermal insulation by 11 both sides, main thermal insulation is adiabatic by separated by a distance between 12 by two sides of 11 the same sides, described main thermal insulation is provided with a first semicircle opening 13 by the middle part of the front end of 11, and sew up with sewing thread, the both sides of the first semicircle opening 13 are provided with some glass-fiber-fabric bands 14, described main thermal insulation is provided with several circles 15 made by sewing thread by the rear portion of 11, main thermal insulation in circle 15 is equipped with a meter font opening, described main thermal insulation is provided with an adiabatic bottom 16 by the rear end of 11, the adiabatic outside correspondence by 12 in described 4 sides is provided with some glass-fiber-fabric bands 14, the described main both sides of adiabatic 11 do not have the position correspondence of the adiabatic quilt in side to be provided with some glass-fiber-fabric bands 14, the described adiabatic bottom 16 is provided with some glass-fiber-fabric bands 14, it is adiabatic by 21 under described lower thermal barrier structure 2 comprises one, described lower thermal insulation is identical by 11 sizes with main thermal insulation by 21, structure is mutually corresponding, together with described lower thermal insulation to be seamed in by the staggered folded merga pass sewing thread of some layers of radiation shield and sheathing paper by 21, lower thermal insulation is provided with main thermal insulation by identical the second semicircle opening 22 of first circular open by the front center of 21, second semicircle opening 22 both sides are provided with corresponding some glass-fiber-fabric bands 14, lower thermal insulation is provided with the some glass-fiber-fabric bands 14 corresponding with the adiabatic bottom of main adiabatic quilt by the rear end of 21, lower thermal insulation is provided with glass-fiber-fabric band 14 some with upper thermal barrier structure 1 both sides by the both sides of 21.
It also comprises 4 circular over caps; described over cap interlocks superimposed by some layers of circular radiation shield and sheathing paper; edge is sewed up by sewing thread; the inside edge of over cap is provided with VELCRO; described main thermal insulation is respectively provided with 2 sizes circular open 17 identical with over cap by 2 side thermal insulation of 11 sides on 12, and the edge of circular open 17 is sewed up by sewing thread.
Using method of the present invention: the below first lower thermal barrier structure being placed on cooling device, again upper thermal barrier structure correspondence is arranged on above cooling device, pipeline above cooling device through main thermal insulation by above be provided with in meter circle of font opening, turn on second of lower thermal barrier structure front end the semicircle opening, turn under second semicircle opening of upper thermal barrier structure front end and fixed by glass-fiber-fabric band, respectively the rear end of upper thermal barrier structure and lower thermal barrier structure and both sides are pricked by glass-fiber-fabric again and tie up, again over cap is arranged on the maintenance hatch door of cooling device.
Specific embodiment described herein is only to structure of the present invention explanation for example.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Claims (2)
1. the heat shield structure of the cooling device of a low temperature superconducting field, it is characterized in that: it comprises upper thermal barrier structure and lower thermal barrier structure, described upper thermal insulation is included main adiabatic quilt and 4 adiabatic quilts in side, together with described main adiabatic quilt is seamed in by some layers of radiation shield and the staggered folded merga pass sewing thread of sheathing paper respectively with side thermal insulation, described 4 sides are adiabatic by the both sides being seamed in main adiabatic quilt by sewing thread corresponding respectively, main thermal insulation is by separated by a distance between the adiabatic quilt in two sides of the same side, the middle part of the front end of described main adiabatic quilt is provided with a first semicircle opening, and sew up with sewing thread, the both sides of the first semicircle opening are provided with some glass-fiber-fabric bands, the rear portion of described main adiabatic quilt is provided with several circles made by sewing thread, main thermal insulation in circle is equipped with a meter font opening, the rear end of described main adiabatic quilt is provided with an adiabatic bottom, the outside correspondence of the adiabatic quilt in described 4 sides is provided with some glass-fiber-fabric bands, the both sides of described main thermal insulation do not have the position correspondence of the adiabatic quilt in side to be provided with some glass-fiber-fabric bands, lay out under described thermal insulation and be provided with some glass-fiber-fabric bands, adiabatic quilt under described lower thermal barrier structure comprises one, described lower thermal insulation is by identical by size with main thermal insulation, structure is mutually corresponding, together with described lower thermal insulation is seamed in by the staggered folded merga pass sewing thread of some layers of radiation shield and sheathing paper, the front center of lower adiabatic quilt is provided with main thermal insulation by identical the second semicircle opening of first circular open, second semicircle opening both sides are provided with corresponding some glass-fiber-fabric bands, the rear end of lower adiabatic quilt is provided with the some glass-fiber-fabric bands corresponding with the adiabatic bottom of main adiabatic quilt, the both sides of lower adiabatic quilt are provided with glass-fiber-fabric band some with upper thermal barrier structure both sides.
2. the heat shield structure of the cooling device of a kind of low temperature superconducting field as claimed in claim 1; it is characterized in that: it also comprises 4 circular over caps; described over cap interlocks superimposed by some layers of circular radiation shield and sheathing paper; edge is sewed up by sewing thread; the inside edge of over cap is provided with VELCRO; described main thermal insulation is respectively provided with 2 sizes circular open identical with over cap by 2 side thermal insulation of side by upper, and the edge of circular open is sewed up by sewing thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410565525.XA CN104319056B (en) | 2014-10-22 | 2014-10-22 | A kind of heat shield structure of the chiller of low temperature superconducting field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410565525.XA CN104319056B (en) | 2014-10-22 | 2014-10-22 | A kind of heat shield structure of the chiller of low temperature superconducting field |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104319056A true CN104319056A (en) | 2015-01-28 |
| CN104319056B CN104319056B (en) | 2016-07-06 |
Family
ID=52374275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410565525.XA Active CN104319056B (en) | 2014-10-22 | 2014-10-22 | A kind of heat shield structure of the chiller of low temperature superconducting field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104319056B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05198430A (en) * | 1992-01-23 | 1993-08-06 | Tokin Corp | Shield plate supporting part, criostat using it and shield plate supporting method |
| CN1892931A (en) * | 2005-06-30 | 2007-01-10 | 株式会社日立制作所 | A mri superconductive magnet |
| CN203488974U (en) * | 2013-09-18 | 2014-03-19 | 杭州富士达特种材料有限公司 | Low-temperature dewar bottle thermal insulation device |
| CN103968236A (en) * | 2014-04-29 | 2014-08-06 | 湖北三江航天江北机械工程有限公司 | Coating structure for low-temperature heat insulation container and coating method of coating structure |
| CN204288998U (en) * | 2014-10-22 | 2015-04-22 | 杭州富士达特种材料有限公司 | The heat shield structure of the cooling device of low temperature superconducting field |
-
2014
- 2014-10-22 CN CN201410565525.XA patent/CN104319056B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05198430A (en) * | 1992-01-23 | 1993-08-06 | Tokin Corp | Shield plate supporting part, criostat using it and shield plate supporting method |
| CN1892931A (en) * | 2005-06-30 | 2007-01-10 | 株式会社日立制作所 | A mri superconductive magnet |
| CN203488974U (en) * | 2013-09-18 | 2014-03-19 | 杭州富士达特种材料有限公司 | Low-temperature dewar bottle thermal insulation device |
| CN103968236A (en) * | 2014-04-29 | 2014-08-06 | 湖北三江航天江北机械工程有限公司 | Coating structure for low-temperature heat insulation container and coating method of coating structure |
| CN204288998U (en) * | 2014-10-22 | 2015-04-22 | 杭州富士达特种材料有限公司 | The heat shield structure of the cooling device of low temperature superconducting field |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104319056B (en) | 2016-07-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Ballarino et al. | Status of MgB2 wire and cable applications in Europe | |
| Shiohara et al. | Future prospects of high Tc superconductors-coated conductors and their applications | |
| US20140051582A1 (en) | Arrangement with at least one superconductive cable | |
| CN104198803B (en) | A kind of on-line monitoring system of high-temperature superconducting magnet | |
| RU2541503C2 (en) | Device with superconductive cable | |
| Uchida | High temperature superconductivity: The road to higher critical temperature | |
| CN106898433B (en) | Superconduction graphene composite film wire/belt material and cable | |
| CN107646158B (en) | Superconductive fault current limit system and connection system suitable for superconductive tape | |
| CN110299228A (en) | A kind of cold insulation direct-current high-temperature superconducting current limliting cable | |
| CN208157149U (en) | High-temperature superconductor band device | |
| CN103035353A (en) | Compound winding made of Bi-based and Y-based high-temperature superconducting tapes | |
| CN103295695B (en) | System with superconductivity three-phase power transfer element | |
| CN110211765A (en) | A kind of superconducting current-limiting transformer | |
| CN102254618A (en) | Transmission system with superconducting cable | |
| CN201859697U (en) | Photoelectric composite core low-temperature insulation superconductive cable | |
| CN204288998U (en) | The heat shield structure of the cooling device of low temperature superconducting field | |
| Sato | Bismuth-based oxide (BSCCO) high-temperature superconducting wires for power grid applications: Properties and fabrication | |
| CN106971788A (en) | Superconduction graphene composite cable | |
| CN104319056B (en) | A kind of heat shield structure of the chiller of low temperature superconducting field | |
| CN204303529U (en) | Photovoltaic power generation transformer loop construction | |
| CN101458989B (en) | High temperature superconductive large current transformer and application thereof | |
| Malozemoff | Electric power grid application requirements for superconductors | |
| US20150057158A1 (en) | Superconducting dc reactor | |
| You et al. | Superconductivity, electronic phase diagram, and pressure effect in Sr 1− x Pr x FBiS 2 | |
| Lee et al. | Development of 6.6 kV-200 A DC reactor type superconducting fault current limiter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information |
Address after: 311500, No. 178, Fengxiang Road, Tonglu Economic Development Zone, Tonglu County, Zhejiang, Hangzhou Applicant after: HANGZHOU FUSHIDA SPECIAL MATERIAL CO., LTD. Address before: 516, room 699, block B, Meilin Road, Tonglu Economic Development Zone, Tonglu County, Hangzhou, Zhejiang, 311500 Applicant before: Hangzhou Fushida Special Material Co.,Ltd. |
|
| COR | Change of bibliographic data | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |