JPS6114741B2 - - Google Patents
Info
- Publication number
- JPS6114741B2 JPS6114741B2 JP52142295A JP14229577A JPS6114741B2 JP S6114741 B2 JPS6114741 B2 JP S6114741B2 JP 52142295 A JP52142295 A JP 52142295A JP 14229577 A JP14229577 A JP 14229577A JP S6114741 B2 JPS6114741 B2 JP S6114741B2
- Authority
- JP
- Japan
- Prior art keywords
- cooling liquid
- coolant
- conduits
- magnetic shield
- cylinders
- 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.)
- Expired
Links
- 239000002826 coolant Substances 0.000 claims description 34
- 239000000110 cooling liquid Substances 0.000 claims description 27
- 239000012530 fluid Substances 0.000 claims description 11
- 238000007599 discharging Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 6
- 239000012809 cooling fluid Substances 0.000 description 4
- 239000004020 conductor Substances 0.000 description 3
- 229910052734 helium Inorganic materials 0.000 description 3
- 239000001307 helium Substances 0.000 description 3
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000010955 niobium Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- KJSMVPYGGLPWOE-UHFFFAOYSA-N niobium tin Chemical compound [Nb].[Sn] KJSMVPYGGLPWOE-UHFFFAOYSA-N 0.000 description 1
- RJSRQTFBFAJJIL-UHFFFAOYSA-N niobium titanium Chemical compound [Ti].[Nb] RJSRQTFBFAJJIL-UHFFFAOYSA-N 0.000 description 1
- GFUGMBIZUXZOAF-UHFFFAOYSA-N niobium zirconium Chemical compound [Zr].[Nb] GFUGMBIZUXZOAF-UHFFFAOYSA-N 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002887 superconductor Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
- H02K9/20—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil wherein the cooling medium vaporises within the machine casing
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K55/00—Dynamo-electric machines having windings operating at cryogenic temperatures
- H02K55/02—Dynamo-electric machines having windings operating at cryogenic temperatures of the synchronous type
- H02K55/04—Dynamo-electric machines having windings operating at cryogenic temperatures of the synchronous type with rotating field windings
-
- 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
Description
【発明の詳細な説明】
本発明は電気機器、特に低温流体によつて冷却
される電気機器に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to electrical equipment, particularly electrical equipment cooled by cryogenic fluid.
本発明は、原子力発電所、火力発電所、その他
の発電所、輸送機関および飛行機に設置される、
電気モータ、発電機および変換器のようなあらゆ
る種類の電気機器に使用できる。本発明は発電所
の外部空間にも使用できる。また、超電導現象を
利用する他の装置および設備において、本発明は
経時変化する磁場の影響から超電導体をシールド
するのに有利に使用できる。 The present invention is installed in nuclear power plants, thermal power plants, other power plants, transportation facilities, and airplanes.
Can be used in all kinds of electrical equipment such as electric motors, generators and converters. The invention can also be used in external spaces of power plants. Additionally, in other devices and equipment that utilize superconducting phenomena, the present invention can be advantageously used to shield superconductors from the effects of time-varying magnetic fields.
従来の低温流体によつて冷却される電気機器
（参照：フランス特許第2089515号、1971年４月９
日、分類H02k3／00）は超電導材料の磁気しやへ
いによつて囲まれる中空回転子の中に位置する超
電導場コイルを具備する。 Electrical equipment cooled by conventional cryogenic fluids (see French Patent No. 2089515, April 9, 1971)
(Japan, classification H02k3/00) comprises a superconducting field coil located in a hollow rotor surrounded by a magnetic shield of superconducting material.
従来形の磁気しやへいは熱伝導係数の大きい材
料によつて包まれた超電導材料の長いフアイバで
ある。この磁気しやへいは回転子の外面に直接配
置され、自らの熱伝導性によつて回転子の超電導
コイルに結合して冷却される。 A conventional magnetic shield is a long fiber of superconducting material wrapped in a material with a high coefficient of thermal conductivity. This magnetic shield is placed directly on the outer surface of the rotor and is cooled by its thermal conductivity, which couples it to the rotor's superconducting coils.
交番する磁場によつて磁気しやへいに生じた熱
はただちに超電導コイルに伝わるので、上述の磁
気しやへいの配置は低効率である。これは余分に
冷却剤の消費を必要とし、またこの熱に見合う電
力消費量も膨大となる。 The above-described magnetic shield arrangement is inefficient because the heat generated in the magnetic shield by the alternating magnetic field is immediately transferred to the superconducting coil. This requires additional coolant consumption, and the power consumption associated with this heat is also significant.
本発明の目的は超電導場コイルの熱的絶縁の効
率を向上させ、従つて、電気機器の効率を向上さ
せることにある。 The object of the invention is to improve the efficiency of the thermal insulation of superconducting field coils and thus to improve the efficiency of electrical equipment.
上述の目的を達成するために本発明によれば、
中空回転子と、該中空回転子の内側に配置され且
つ冷却液によつて冷却される超電導場コイルと、
前記中空回転子を囲む熱および磁気しやへい手段
とを具備する低温流体によつて冷却される電気機
器において、前記熱および磁気しやへい手段が、
熱しやへいとして少なくとも２つの同軸の円筒
と、該円筒間に固定された磁気しやへいとを具備
し、冷却液の循環のための導管が前記磁気しやへ
いと前記接合面に設けられ、前記導管が前記冷却
液の取入用および排出用の少なくとも２つの平担
な円板室に通じ、該円板室が前記中空回転子の軸
対称に位置且つ前記円筒の端面の少なくとも１つ
に隣接され、前記熱および磁気しやへい手段を、
前記導管中に前記冷却液を軸方向に逆流させるこ
とによつて冷却することを特徴とする低温流体に
よつて冷却される電気機器が提供される。 According to the present invention, in order to achieve the above object,
a hollow rotor; a superconducting field coil disposed inside the hollow rotor and cooled by a cooling liquid;
An electrical appliance cooled by a cryogenic fluid comprising thermal and magnetic shielding means surrounding said hollow rotor, said thermal and magnetic shielding means comprising:
comprising at least two coaxial cylinders as heating shields and a magnetic shield fixed between the cylinders, a conduit for circulation of cooling liquid being provided at the joint surface of the magnetic shield, The conduit leads to at least two flat disk chambers for intake and discharge of the cooling fluid, the disk chambers being located axially symmetrically of the hollow rotor and adjacent to at least one end face of the cylinder. , the thermal and magnetic shielding means;
There is provided an electrical device cooled by a cryogenic fluid, characterized in that it is cooled by axially counter-flowing the cooling liquid into the conduit.
上述の電気機器によつて超電導場コイルを磁気
しやへい内に生ずる熱の影響から保護することが
でき、ゆえに冷却液の消費量を減少させ且つ該電
気機器の効率を向上させることができる。 The above-mentioned electrical equipment makes it possible to protect the superconducting field coils from the effects of heat generated in the magnetic shield, thus reducing the consumption of cooling liquid and increasing the efficiency of the electrical equipment.
上述の電気機器にあつて、前記導管を前記磁気
しやへいと前記円筒との接合面に沿つてらせん状
に配置させるのが有利である。 In the electrical device described above, it is advantageous for the conduit to be arranged in a helical manner along the interface between the magnetic shield and the cylinder.
さらに上述の電気機器にあつて、製造を容易に
するために、前記磁気しやへいの外面および内面
がねじ接合によつて前記円筒に固定され、該ねじ
接合が冷却液の循環のための隙間を有するのが好
ましい。 Furthermore, in the above-mentioned electrical equipment, in order to facilitate manufacturing, the outer and inner surfaces of the magnetic shield are fixed to the cylinder by screw joints, and the screw joints provide a gap for circulation of cooling fluid. It is preferable to have
導管の流れる冷却液の流速を大きくするため
に、上述の電気機器にあつて、冷却液の取入用の
前記円板室が循環液のための導管の中に冷却液を
強制的に挿入する手段を備え、一方、冷却液の排
出用の前記円板室が導管の中の冷却液を排出する
手段を備え、もつて循環する冷却液の圧力低下を
生じさせるのが好ましい。 In order to increase the flow rate of the coolant flowing through the conduit, in the above-mentioned electrical equipment, the disk chamber for the intake of the coolant is configured to forcibly insert the coolant into the conduit for the circulating fluid. Preferably, the disc chamber for the discharge of coolant is provided with means for discharging the coolant in the conduit, thereby creating a pressure drop in the circulating coolant.
冷却液が滑らかに循環するために且つ冷却液の
取入用の平担な円板室の端面を均一に冷却するた
めに、上述の電気機器にあつて、冷却液の循環の
ための導管の中に冷却液を強制的に挿入する前記
手段が円板室の端面に固定された翼の形状である
のが好ましい。 In order for the coolant to circulate smoothly and to uniformly cool the end face of the flat disk chamber for the intake of the coolant, in the above-mentioned electrical equipment, inside the conduit for the circulation of the coolant. Preferably, said means for forcibly introducing cooling liquid into the chamber are in the form of wings fixed to the end faces of the disc chamber.
導管から冷却液を滑らかに排出するために、冷
却液の循環のための導管の中から冷却液を排出す
る前記手段が円板室の端面に固定されたらせん状
のストリツプであることが好ましい。 In order to smoothly discharge the coolant from the conduit, it is preferred that said means for discharging the coolant from within the conduit for circulation of the coolant is a helical strip fixed to the end face of the disc chamber.
添付図を参照して本発明の実施例を説明する。 Embodiments of the present invention will be described with reference to the accompanying drawings.
第１図を参照すると、低温流体によつて冷却さ
れる電気機器は中空回転子１を具備する。中空回
転子１の軸２は密閉された枠５の端しやへい４の
中に配置された軸受３に保持されている。枠５の
内面に固定コイル６がある。回転子１の熱的絶縁
のために電気機器の回転子１と枠５との間の空間
は真空に保持されている。正しいシールは端しや
へい４内の真空シール７を回転することによつて
保証される。 Referring to FIG. 1, an electrical device cooled by a cryogenic fluid comprises a hollow rotor 1. The shaft 2 of the hollow rotor 1 is held in a bearing 3 arranged at the end of a closed frame 5 or in a shield 4. There is a fixed coil 6 on the inner surface of the frame 5. In order to thermally insulate the rotor 1, the space between the rotor 1 and the frame 5 of the electrical device is kept in a vacuum. Correct sealing is ensured by rotating the vacuum seals 7 in the ends and enclosures 4.
中空回転子１は超電導場コイル９を含む非磁性
体円筒８を具備する。超電導場コイル９はエポキ
シ樹脂によつて固定され、超電導材料たとえば錫
ニオブ（NbSn）から作られている。超電導場コ
イル９は他の高電導度の材料たとえばジルコニウ
ムニオブまたはチタニウムニオブからも作られ
る。 The hollow rotor 1 comprises a non-magnetic cylinder 8 containing a superconducting field coil 9. The superconducting field coil 9 is fixed by epoxy resin and is made of a superconducting material, for example tin niobium (NbSn). The superconducting field coil 9 can also be made from other highly conductive materials, such as zirconium niobium or titanium niobium.
枠５と非磁性体円筒８との間の空間には磁気し
やへい１２を間にはさむ２つの非磁性体の同軸な
円筒１０，１１の熱しやへいが設けられている。
磁気しやへい１２は、超電導材料たとえば
Nb3Sn、または高電導度材料たとえば銅、アルミ
ニウムから作られる。超電導材料は電気導体材料
の表面にスパツタによつて付着される。磁気しや
へい１２は電気導体材料内に設けられた超電導材
料フアイバから作られる。 In the space between the frame 5 and the non-magnetic cylinder 8, there are provided heating shields made of two coaxial non-magnetic cylinders 10 and 11 with a magnetic shield 12 sandwiched therebetween.
The magnetic shield 12 is made of superconducting material, for example
Nb 3 Sn, or made from high conductivity materials such as copper and aluminum. The superconducting material is sputtered onto the surface of the electrically conductive material. The magnetic shield 12 is made from superconducting material fibers disposed within an electrically conductive material.
超電導場コイル９は非磁性体円筒８の中に充満
する冷却液１３によつて超電導状態まで冷却され
る。冷却液１３としては液体ヘリウムが使用され
る。 The superconducting field coil 9 is cooled to a superconducting state by the cooling liquid 13 filling the non-magnetic cylinder 8. Liquid helium is used as the coolant 13.
超電導場コイル９まで冷却液１３を運ぶため
に、回転子１の軸２は管１４を含む軸導管を備え
る。２つの平担な円板室１５は冷却液１３の取入
のために熱しやへいの端面に隣接し、一方、２つ
の平担な円板室１６は冷却液１３の排出のために
円板室１５と同軸に位置する。熱しやへいの端面
に隣接する円板室１５，１６は、同軸な外側の円
筒１０および内側の円筒１１の端面、熱しやへ
い、中空仕切り１７によつて規定される。磁気し
やへい１２は冷却液１３を戻すために磁気しやへ
い１２の両端面から等距離の位置に孔１８を有す
る。冷却液１３の排出用の円板室１６は冷却液１
３を排出するために回転子１の軸２の中に設けら
れた導管１９に通じている。磁気しやへい１２は
非磁性体円筒８から取り出される冷却液１３によ
つて冷却される。第２図を参照すると冷却液１３
は磁気しやへい１２と同軸な円筒１０，１１との
接合面に沿つてらせん状に位置する導管２０に沿
つて循環する。 In order to convey the cooling liquid 13 to the superconducting field coils 9, the shaft 2 of the rotor 1 is provided with an axial conduit containing a tube 14. Two flat disk chambers 15 adjoin the end faces of the heating chamber for the intake of the cooling liquid 13, while two flat disk chambers 16 are connected to the disk chamber 15 for the discharge of the cooling liquid 13. Located coaxially. The disc chambers 15, 16 adjacent to the end surfaces of the heating chamber are defined by the end surfaces of the coaxial outer cylinder 10 and inner cylinder 11, the heating chamber, and the hollow partition 17. The magnetic shield 12 has holes 18 at positions equidistant from both end faces of the magnetic shield 12 for returning the coolant 13. The disc chamber 16 for discharging the coolant 13 is the coolant 1.
3 into a conduit 19 provided in the shaft 2 of the rotor 1. The magnetic shield 12 is cooled by a cooling liquid 13 taken out from the non-magnetic cylinder 8. Referring to FIG.
is circulated along a conduit 20 located in a spiral manner along the interface between the magnetic shield 12 and the coaxial cylinders 10, 11.
冷却液１３を循環させるための導管２０は、基
本的には、不完全なねじ山形状をした、磁気しや
へい１２と同軸な外側の円筒１０および内側の円
筒１１とをねじ接合することによつて生じる隙間
である。 The conduit 20 for circulating the coolant 13 is basically formed by threading an outer cylinder 10 and an inner cylinder 11 coaxial with the magnetic shield 12 and having an incomplete thread shape. This is the gap that is created as a result.
ねじは多案ねじ形状で熱交換表面を拡大してあ
るものが好ましい。同軸な円筒１１，１２の両端
から中央の孔１８までの２つの部分に互いに反対
方向のねじ山（左巻ねじ山と右巻ねじ山）が切ら
れている。 Preferably, the screw has a multiple thread shape with an enlarged heat exchange surface. Threads (left-handed threads and right-handed threads) in opposite directions are cut in two parts from both ends of the coaxial cylinders 11 and 12 to the hole 18 in the center.
第３図は磁気しやへい１２と熱しやへいの同軸
な外側の円筒２３および内側の円筒２４との接合
の他の変更例を示す。 FIG. 3 shows another modification of the connection between the magnetic shield 12 and the coaxial outer cylinder 23 and inner cylinder 24 of the thermal shield.
磁気しやへい１２は銅円筒２２の外面および内
面にNb3Snの超電導膜を付着したものである。円
筒２３，２４，２２は重嵌着接合（heavy−
drive fit）によつて接合される。冷却液１３を循
環させるための導管２５は磁気しやへい１２と円
筒２３，２４との接合面に沿つてらせん状に位置
し、また導管２５の形状は矩形である。 The magnetic shield 12 is a copper cylinder 22 with superconducting films of Nb 3 Sn attached to the outer and inner surfaces. The cylinders 23, 24, 22 are joined by heavy fitting (heavy-
drive fit). A conduit 25 for circulating the coolant 13 is located in a spiral along the joint surface between the magnetic shield 12 and the cylinders 23 and 24, and the shape of the conduit 25 is rectangular.
第４図を参照すると、冷却液１３の取入側の平
坦な円板室１５は円板室１５の端面に固定された
中心から外に向かう翼２６を具備する。 Referring to FIG. 4, the flat disc chamber 15 on the intake side of the coolant 13 is provided with centrally directed wings 26 fixed to the end face of the disc chamber 15.
第５図を参照すると、冷却液１３の排出側の平
坦な円板室１６は円板室１６の端面に固定された
渦巻状のストリツプ２７から作られる仕切りを有
する。 Referring to FIG. 5, the flat disk chamber 16 on the discharge side of the coolant 13 has a partition made of a spiral strip 27 fixed to the end face of the disk chamber 16.
冷却液１３としての液体ヘリウムは管１４から
超電導場コイル９へ供給され、超電導場コイル９
を冷却後に磁気しやへい１２の両端に位置する円
板室１５に送られる。 Liquid helium as a cooling liquid 13 is supplied from a tube 14 to the superconducting field coil 9.
After being cooled, it is sent to the disk chambers 15 located at both ends of the magnetic shield 12.
回転子１が回転している場合、蒸発したヘリウ
ムが円板室１５の中に入つて中央から周辺へ流れ
る。このとき円板室１５の壁が冷却される。また
回転子１が回転すると、翼２６は冷却液を引込み
冷却後に円周方向の速度を与える。冷却液１３に
作用する遠心力のために非磁性体円筒８から付加
的に冷却液１３が排出され、導管２０の中に送り
込まれる。さらに冷却液１３は熱しやへいの円筒
１１の内側のらせん状導管２０に沿つて流れ、さ
らに孔１８を介して円筒１０の外側のらせん状導
管２０に沿つて流れる。冷却液１３がらせん状の
導管２０を循環しているときは、冷却液１３は回
転速度成分を有するので滑らかに平坦な円板室１
６の中に流れ込む。円板室１６においては、スト
リツプ２７が冷却液１３を導管２０から排出する
手段として働き、これにより、冷却液１３の圧力
低下を生じさせる。そして冷却液１３は排出用導
管１９に送られ、円板室１６の壁を冷却後に回転
子１の外へ排出される。 When the rotor 1 is rotating, evaporated helium enters the disk chamber 15 and flows from the center to the periphery. At this time, the wall of the disk chamber 15 is cooled. Further, when the rotor 1 rotates, the blades 26 draw in the cooling fluid and provide a speed in the circumferential direction after cooling. Due to the centrifugal force acting on the coolant 13 , the coolant 13 is additionally discharged from the non-magnetic cylinder 8 and fed into the conduit 20 . Furthermore, the cooling liquid 13 flows along a helical conduit 20 inside the heating cylinder 11 and further along a helical conduit 20 outside the cylinder 10 via the hole 18 . When the coolant 13 is circulating through the spiral conduit 20, the coolant 13 has a rotational speed component, so that the disk chamber 1 is smoothly and flat.
It flows into 6. In the disk chamber 16, the strip 27 serves as a means for draining the coolant 13 from the conduit 20, thereby creating a pressure drop in the coolant 13. The cooling liquid 13 is then sent to a discharge conduit 19 and discharged to the outside of the rotor 1 after cooling the wall of the disc chamber 16.
低温流体によつて冷却される電気機器の上述の
実施例は交番磁界によつて磁気しやへいに生ずる
熱を取り除くことを可能にする。 The above-described embodiments of electrical equipment cooled by cryogenic fluids make it possible to remove the heat generated magnetically by alternating magnetic fields.
また、上述の実施例は、電気機器の両端に位置
する平坦な円板室を備えることによつて該電気機
器の両端からの熱流入を減少させ、もつて、超電
導場コイルの熱的保護効率を向上させる。 The above-described embodiment also reduces the heat inflow from both ends of the electrical equipment by providing flat disk chambers located at both ends of the electrical equipment, thereby increasing the thermal protection efficiency of the superconducting field coil. Improve.
第１図は本発明に係る低温流体によつて冷却さ
れる電気機器の一実施例を示す縦断面図、第２図
は第１図の部分Ａの拡大図、第３図は本発明に係
る磁気しやへいおよび平坦な円板室による熱しや
へいの他の変更例を示す部分図、第４図は本発明
に係る冷却液の取入用の平坦な円板室の断面図、
第５図は本発明に係る冷却液の排出用の平坦な円
板室の断面図である。
１……中空回転子、５……枠、９……超電導場
コイル、１０，１１，２３，２４……熱しやへい
としての同軸な円筒、１２……磁気しやへい、１
３……冷却液、１５……冷却液の取入用の平坦な
円板室、１６……冷却液の排出用の平坦な円板
室、２０，２５……冷却液の循環用導管、２６…
…翼、２７……ストリツプ。
FIG. 1 is a longitudinal sectional view showing an embodiment of an electrical device cooled by a low-temperature fluid according to the present invention, FIG. 2 is an enlarged view of part A in FIG. 1, and FIG. FIG. 4 is a sectional view of a flat disc chamber for intake of cooling fluid according to the present invention; FIG.
FIG. 5 is a sectional view of a flat disk chamber for cooling liquid discharge according to the invention. 1... Hollow rotor, 5... Frame, 9... Superconducting field coil, 10, 11, 23, 24... Coaxial cylinder as heat shield, 12... Magnetic shield, 1
3...Cooling liquid, 15...Flat disk chamber for intake of coolant, 16...Flat disk chamber for discharging coolant, 20, 25...Conduit for circulation of coolant, 26...
...wings, 27...strips.
Claims (1)
され且つ冷却液１３によつて冷却される超電導場
コイル９と、前記中空回転子を囲む熱および磁気
しやへい手段１０，１１，１２とを具備する低温
流体によつて冷却される電気機器において、前記
熱および磁気しやへい手段が、熱しやへいとして
の少なくとも２つの同軸の円筒１０，１１と、該
円筒間に固定された磁気しやへい１２とを具備
し、冷却液１３の循環のための導管２０，２５が
前記磁気しやへい１２と前記円筒１０，１１との
接合面に設けら、前記導管２０，２５が前記冷却
液１３の取入用および排出用の少なくとも２つの
平担な円板室１５，１６に通じ、該円板室１５，
１６が前記中空回転子１の軸対称に位置且つ前記
円筒１０，１１の端面の少なくとも１つに隣接さ
れ、前記熱および磁気しやへい手段１０，１１，
１２を、前記導管２０，２５中に前記冷却液１３
を軸方向に逆流させることによつて冷却すること
を特徴とする低温流体によつて冷却される電気機
器。 ２ 前記導管２０，２５が前記磁気しやへい１２
と前記円筒１０，１１との前記接合面に沿つてら
せん状に配置された特許請求の範囲第１項に記載
の電気機器。 ３ 前記磁気しやへい１２の外面および内面がね
じ接合によつて円筒１０，１１に固定され、該ね
じ接合が冷却液１３の循環のための隙間を有する
特許請求の範囲第２項に記載の電気機器。 ４ 冷却液１３の取入用の前記円板室１５が冷却
液１３の循環のための導管２０，２５の中に冷却
液１３を強制的に挿入する手段を備え、一方、冷
却液１３の排出用の前記円板室１６が導管２０，
２５の中の冷却液１３を排出する手段を備え、も
つて循環する冷却液１３の圧力低下を生じさせる
特許請求の範囲第３項に記載の電気機器。 ５ 冷却液１３の循環のための導管２０，２５の
中に冷却液１３を強制的に挿入する前記手段が円
板室１５の端面に固定された翼２６の形状である
特許請求の範囲第４項記載の電気機器。 ６ 冷却液１３の循環のための導管２０，２５の
中から冷却液１３を排出する前記手段が円板室１
６の端面に固定されたらせん状のストリツプ２７
である特許請求の範囲第４項に記載の電気機器。[Claims] 1. A hollow rotor 1, a superconducting field coil 9 disposed inside the hollow rotor and cooled by a cooling liquid 13, and a thermal and magnetic shield surrounding the hollow rotor. an electrical appliance cooled by a cryogenic fluid comprising means 10, 11, 12, said thermal and magnetic shielding means comprising at least two coaxial cylinders 10, 11 as thermal shields; A magnetic shield 12 is fixed therebetween, and conduits 20 and 25 for circulating the coolant 13 are provided at the joint surfaces of the magnetic shield 12 and the cylinders 10 and 11, and the conduits 20, 25 lead to at least two flat disk chambers 15, 16 for the intake and discharge of said cooling liquid 13, said disk chambers 15,
16 is located axially symmetrically of the hollow rotor 1 and adjacent to at least one of the end faces of the cylinders 10, 11, and the thermal and magnetic resistance means 10, 11,
12 and the cooling liquid 13 in the conduits 20, 25.
An electrical device cooled by a low-temperature fluid, characterized in that it is cooled by axially counterflowing the fluid. 2 The conduits 20 and 25 are connected to the magnetic shield 12
The electric device according to claim 1, wherein the electric device is arranged spirally along the joint surface between the cylinders 10 and 11. 3. The outer and inner surfaces of the magnetic shield 12 are fixed to the cylinders 10, 11 by threaded joints, and the threaded joints have a gap for circulation of the cooling liquid 13. electrical equipment. 4. Said disc chamber 15 for the intake of the cooling liquid 13 is provided with means for forcibly inserting the cooling liquid 13 into the conduits 20, 25 for the circulation of the cooling liquid 13, while for the discharge of the cooling liquid 13 The disc chamber 16 is connected to the conduit 20,
4. An electrical appliance as claimed in claim 3, comprising means for discharging the coolant 13 in the circulating coolant 13, thereby creating a pressure drop in the circulating coolant 13. 5. Said means for forcibly inserting the cooling liquid 13 into the conduits 20, 25 for the circulation of the cooling liquid 13 is in the form of a wing 26 fixed to the end face of the disc chamber 15. Electrical equipment listed. 6. Said means for discharging the cooling liquid 13 from the conduits 20, 25 for circulation of the cooling liquid 13
Helical strip 27 fixed to the end face of 6
An electrical device according to claim 4.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU762421859A SU629601A1 (en) | 1976-11-30 | 1976-11-30 | Electric machine with cryogenic cooling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5386413A JPS5386413A (en) | 1978-07-29 |
| JPS6114741B2 true JPS6114741B2 (en) | 1986-04-21 |
Family
ID=20683519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14229577A Granted JPS5386413A (en) | 1976-11-30 | 1977-11-29 | Electric machine which is cooled by lowwtemperature fluid |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS5386413A (en) |
| DE (1) | DE2753460C3 (en) |
| SU (1) | SU629601A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6354863U (en) * | 1986-09-29 | 1988-04-13 |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH623174A5 (en) * | 1978-01-25 | 1981-05-15 | Bbc Brown Boveri & Cie | |
| DE2820985C2 (en) * | 1978-05-12 | 1983-11-03 | Leningradskoe proizvodstvennoe elektromašinostroitel'noe ob"edinenie "Elektrosila", Leningrad | Cryogenically cooled electrical machine |
| DE2843129C2 (en) * | 1978-10-03 | 1987-03-26 | Institut teplofiziki sibirskogo otdelenija Akademii Nauk SSSR, Novosibirsk | Electric machine with cryocooling |
| DE2855832C2 (en) * | 1978-12-22 | 1984-11-29 | Leningradskoe proizvodstvennoe elektromašinostroitel'noe ob"edinenie "Elektrosila", Leningrad | Cryogenically cooled electrical machine |
| DE2858052C2 (en) * | 1978-12-22 | 1986-03-20 | Leningradskoe proizvodstvennoe elektromašinostroitel'noe ob"edinenie "Elektrosila", Leningrad | Power supply for a cryogenically cooled electrical machine |
| JPS5594559A (en) * | 1979-01-11 | 1980-07-18 | Sp K Buyuro Enerugohimashiyu | Electric machine using cryogenic cooling |
| JPS5686051A (en) * | 1979-12-14 | 1981-07-13 | Fuji Electric Co Ltd | Superconduction rotor |
| JPS61196763A (en) * | 1985-02-26 | 1986-08-30 | Mitsubishi Electric Corp | Rotor of superconductive rotary electric machine |
| WO1991017902A1 (en) * | 1990-05-24 | 1991-11-28 | Seiko Epson Corporation | Electric automobile |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5044405A (en) * | 1973-08-06 | 1975-04-21 | ||
| JPS5171903A (en) * | 1974-12-19 | 1976-06-22 | Mitsubishi Electric Corp | Chodendokaitenshino netsukokanki |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1068803B (en) * | 1958-01-28 | 1959-11-12 | ||
| CH428919A (en) * | 1965-10-29 | 1967-01-31 | Bbc Brown Boveri & Cie | Turbo generator with directly cooled windings |
| GB1282412A (en) * | 1968-08-09 | 1972-07-19 | English Electric Co Ltd | Dynamo electric machines |
| GB1351601A (en) * | 1970-04-09 | 1974-05-01 | Int Research & Dev Co Ltd | Superconducting dynamo-electric machines |
| CH516250A (en) * | 1970-07-21 | 1971-11-30 | Int Research & Dev Co Ltd | Alternating current synchronous machine system |
| DE2453182C3 (en) * | 1974-11-08 | 1982-01-21 | Siemens AG, 1000 Berlin und 8000 München | Arrangement for cooling rotor parts of a turbo generator |
| US3956648A (en) * | 1974-11-13 | 1976-05-11 | Massachusetts Institute Of Technology | Superconducting machine having flexible shield means operable to protect the superconducting field winding against transients |
-
1976
- 1976-11-30 SU SU762421859A patent/SU629601A1/en active
-
1977
- 1977-11-29 JP JP14229577A patent/JPS5386413A/en active Granted
- 1977-11-30 DE DE2753460A patent/DE2753460C3/en not_active Expired
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5044405A (en) * | 1973-08-06 | 1975-04-21 | ||
| JPS5171903A (en) * | 1974-12-19 | 1976-06-22 | Mitsubishi Electric Corp | Chodendokaitenshino netsukokanki |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6354863U (en) * | 1986-09-29 | 1988-04-13 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2753460B2 (en) | 1980-12-11 |
| DE2753460A1 (en) | 1978-06-01 |
| JPS5386413A (en) | 1978-07-29 |
| SU629601A1 (en) | 1978-10-25 |
| DE2753460C3 (en) | 1986-03-27 |
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