JPH02254962A - Refrigerant supplying and discharging device for superconducting rotary electric machine - Google Patents
Refrigerant supplying and discharging device for superconducting rotary electric machineInfo
- Publication number
- JPH02254962A JPH02254962A JP1073901A JP7390189A JPH02254962A JP H02254962 A JPH02254962 A JP H02254962A JP 1073901 A JP1073901 A JP 1073901A JP 7390189 A JP7390189 A JP 7390189A JP H02254962 A JPH02254962 A JP H02254962A
- Authority
- JP
- Japan
- Prior art keywords
- refrigerant
- shaft
- refrigerant discharging
- discharge
- electric machine
- 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
- 239000003507 refrigerant Substances 0.000 title claims abstract description 61
- 238000007599 discharging Methods 0.000 title abstract 11
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 229910000831 Steel Inorganic materials 0.000 abstract description 4
- 239000010959 steel Substances 0.000 abstract description 4
- 239000011553 magnetic fluid Substances 0.000 abstract description 2
- 229910052759 nickel Inorganic materials 0.000 abstract description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 abstract 2
- 238000003754 machining Methods 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- 238000007789 sealing Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 2
- 101100310622 Mus musculus Soga1 gene Proteins 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002887 superconductor Substances 0.000 description 1
Classifications
-
- 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
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野コ
この発明は、超電導回転電機の冷媒給排装置に関するも
のであり、さらに詳しくいうと、超電導コイルを備えた
回転子の軸端開口部および軸端近くの軸外周部にそれぞ
れ極低温冷媒の供給部と排出部を備え、固定側フレーム
が前記の供給、排出部を包囲してなる超電導回転電機の
冷媒給排装置に関するものである。[Detailed Description of the Invention] [Industrial Field of Application] This invention relates to a refrigerant supply and discharge device for a superconducting rotating electric machine, and more specifically, to a shaft end opening and a shaft of a rotor equipped with a superconducting coil. This invention relates to a refrigerant supply/discharge device for a superconducting rotating electric machine, in which a cryogenic refrigerant supply section and a discharge section are provided on the outer periphery of the shaft near the end, and a fixed side frame surrounds the supply and discharge sections.
［従来の技術］
超電導回転電機においては、回転子に内蔵された超電導
コイルを液体Ｈｅ等の冷媒で極低温に保持する必要があ
る。このため固定側の冷凍機より回転子に極低温冷媒と
しての液体Ｈｅを供給し、超電導コイルから吸熱して気
化したＨｅガスを回収するための冷媒給排装置が回転子
の一端に設けられる。[Prior Art] In a superconducting rotating electric machine, it is necessary to maintain a superconducting coil built in a rotor at an extremely low temperature with a coolant such as liquid He. For this reason, a refrigerant supply/discharge device is provided at one end of the rotor for supplying liquid He as a cryogenic refrigerant to the rotor from the fixed-side refrigerator and recovering He gas vaporized by absorbing heat from the superconducting coil.
第３図、第４図は特開昭５９−５３０８０号公報に示さ
れた従来の超電導回転電機の冷媒給排装置を示し、図に
おいて、真空層（２）を有する低温冷媒供給管（３）を
ギャップ（１２）を介して囲む真空層（５）を有する中
空回転軸（２０）は、その外周側に冷媒の排出通路（６
＾）と排出口（７Ａ）を備えている。この冷媒供給、排
出部は固定側フレーム（９）で囲まれ、冷媒供給側と排
出側を隔てる軸シール（ＩＯＡ）および冷媒排出部を大
気を隔てる軸シール（ＩＯＢ）が設けられている。（４
）は回転子軸（２０）の中心孔配管、（８）はフレーム
（９）に設けた冷媒排出口、（ｔｉ）は軸受である。3 and 4 show a conventional refrigerant supply/discharge device for a superconducting rotating electric machine disclosed in Japanese Patent Application Laid-open No. 59-53080. In the figures, a low-temperature refrigerant supply pipe (3) having a vacuum layer (2) is shown. The hollow rotary shaft (20) has a vacuum layer (5) surrounding it via a gap (12), and has a refrigerant discharge passage (6) on its outer circumferential side.
^) and a discharge port (7A). This refrigerant supply and discharge section is surrounded by a fixed side frame (9), and is provided with an axial seal (IOA) that separates the refrigerant supply side from the discharge side and an axial seal (IOB) that separates the refrigerant discharge section from the atmosphere. (4
) is the center hole piping of the rotor shaft (20), (8) is a refrigerant outlet provided in the frame (9), and (ti) is a bearing.
以上の構成により、冷凍機からの冷媒（１）は冷媒供給
管（３）を介して回転子側に供給され、回転子（２０）
の中心孔配管（４）を通り、図示しない超電導界磁コイ
ルを内蔵するコイル取付軸へと送られる。一方、吸熱気
化した冷媒は冷媒給排装置へ導かれ、円心円筒間の隙間
である排出通路（６Ａ）を取り、排出口（７Ａ）から固
定側に排出され、冷凍機へと送られる。With the above configuration, the refrigerant (1) from the refrigerator is supplied to the rotor side via the refrigerant supply pipe (3), and
It passes through the center hole piping (4) and is sent to a coil mounting shaft containing a built-in superconducting field coil (not shown). On the other hand, the endothermically vaporized refrigerant is guided to the refrigerant supply/discharge device, takes a discharge passage (6A) which is a gap between the cylinders, is discharged from the discharge port (7A) to the stationary side, and is sent to the refrigerator.
［発明が解決しようとする課題］
従来の超電導回転電機の冷媒給排装置は、以上のように
冷媒排出路を同心円筒間の隙間で形成していたため、回
転軸部が多重円筒構造となっており、製作が容易でなか
った。また、軸受とシールが、一体の軸部に対して取付
けれているため、シールの損傷時の取替えやメインテナ
ンスが容易でなかった。[Problems to be Solved by the Invention] In the conventional refrigerant supply and discharge device for a superconducting rotating electric machine, the refrigerant discharge path was formed by a gap between concentric cylinders as described above, so the rotating shaft part had a multi-cylindrical structure. Therefore, it was not easy to manufacture. Furthermore, since the bearing and the seal are attached to a single shaft, it is difficult to replace or maintain the seal when it is damaged.
この発明は上記のような問題点を解消するためになされ
たもので、製作が容易で工作精度の向上を図ることがで
きるとともに、シールだけの交換が容易にできる超電導
回転電機の冷媒給排装置を得ることを目的とする。This invention was made to solve the above-mentioned problems, and provides a refrigerant supply and discharge device for a superconducting rotating electric machine that is easy to manufacture, improves work accuracy, and allows only the seal to be replaced. The purpose is to obtain.
［課題を解決するための手段］
この発明に係る超電導回転電機の冷媒給排装置は、冷媒
排出部の軸部が回転軸部本体と分離可能な円筒になって
おり、冷媒排出通路は前記円筒に設けた軸方向孔と径方
向孔とを連通させて形成されている。[Means for Solving the Problems] In the refrigerant supply and discharge device for a superconducting rotating electric machine according to the present invention, the shaft portion of the refrigerant discharge portion is a cylinder that is separable from the rotating shaft portion main body, and the refrigerant discharge passage is connected to the cylinder. The axial hole and the radial hole are connected to each other.
［作 用］
この発明においては、冷媒排出部の軸部としての円筒に
軸方向孔と径方向孔とをあけ連通させることにより形成
した流路を通して、冷媒を固定側に排出する。また、シ
ールの損傷時等には、冷媒排出部の軸部を回転軸部本体
から取外し、シールを交換する。[Function] In this invention, the refrigerant is discharged to the stationary side through a flow path formed by opening an axial hole and a radial hole in the cylinder serving as the shaft portion of the refrigerant discharge portion and making them communicate with each other. In addition, when the seal is damaged, the shaft of the refrigerant discharge section is removed from the rotating shaft main body, and the seal is replaced.
［実施例］
第１図、第２図はこの発明の一実施例を示し、図におい
て、回転軸側冷媒排出部（２１）は回転軸（２０）とボ
ルト（２２）によって結合されている。冷媒排出部（２
１）に設けられた冷媒排出通路（６）は軸方向にあけた
孔であり、径方向の孔である排出口（７）と連通してお
り、さらに冷媒排出用パイプ（２３）に接続されている
。[Embodiment] FIGS. 1 and 2 show an embodiment of the present invention, and in the figures, the rotating shaft side refrigerant discharge part (21) is connected to the rotating shaft (20) by bolts (22). Refrigerant discharge part (2
The refrigerant discharge passage (6) provided in 1) is a hole drilled in the axial direction, and communicates with the discharge port (7), which is a radial hole, and is further connected to the refrigerant discharge pipe (23). ing.
冷媒排出部（２１）は、低温脆性のない磁性鋼、例えば
９％Ｎｉ鋼で作られており、シールが磁性流体シールの
場合、磁気回路の形成が容易である。The refrigerant discharge part (21) is made of magnetic steel without low-temperature embrittlement, for example, 9% Ni steel, and when the seal is a magnetic fluid seal, it is easy to form a magnetic circuit.
その他、第３図、第４図におけると同一符号は同一ない
し相当部分である。In addition, the same reference numerals as in FIGS. 3 and 4 indicate the same or corresponding parts.
以上の構成により、冷凍機からの冷媒（１）は静止側冷
媒供給管（３）介して回転子側に供給され、回転子軸（
２０）の中心孔配管（４）を通り、図示しない超電導体
界磁コイルを内蔵するコイル取付軸へと送られる。一方
、超電導界磁コイルを冷却し気化た冷媒は、排出用パイ
プ（２３）を経て、冷媒排出部（２１）に導かれ、排出
用通路（６）を通って固定側へ排出される。With the above configuration, the refrigerant (1) from the refrigerator is supplied to the rotor side via the stationary side refrigerant supply pipe (3), and the rotor shaft (
It passes through the center hole piping (4) of 20) and is sent to a coil mounting shaft containing a superconductor field coil (not shown). On the other hand, the refrigerant that has cooled the superconducting field coil and vaporized is led to the refrigerant discharge part (21) through the discharge pipe (23), and is discharged to the fixed side through the discharge passage (6).
また、シールの損傷時等には、ボルト（２２）によって
締結されている冷媒排出部（２１）を回転子軸（２Ｇ）
から取外し、シールを、また場合によっては冷媒排出部
（２１）をも容易に取替えることができる。In addition, if the seal is damaged, etc., connect the refrigerant discharge part (21) fastened with the bolt (22) to the rotor shaft (2G).
The seal and, if necessary, also the refrigerant outlet (21) can be easily replaced.
［発明の効果］
以上のように、この発明によれば冷媒排出通路（６）は
、軸方向に孔をあけることによって容易に形成できるた
め、装置の製作が容易になり、また加工精度も向上する
。また、シールは冷媒排出部に対して取付けられており
、冷媒排出部は回転子軸にボルト結合されているため、
シールの損傷時の取替えやメインテナンスが容易になる
。[Effects of the Invention] As described above, according to the present invention, the refrigerant discharge passage (6) can be easily formed by drilling holes in the axial direction, making it easier to manufacture the device and improving processing accuracy. do. In addition, the seal is attached to the refrigerant discharge part, and the refrigerant discharge part is bolted to the rotor shaft.
Easier replacement and maintenance when the seal is damaged.
第１図はこの発明の一実施例の要部縦断面図、第２図は
第１図の■−■線に沿う平面での断面図、第３図は従来
の超電導回転電機の冷媒給排装置の要部縦断面図、第４
図は第３図のＩＹ−１’Ｖ線に沿う平面での断面図であ
る。
（１）は供給冷媒、（２）は真空断熱層、（３）は静止
側冷媒供給管、（６）は冷媒排出通路、（７）は冷媒排
出口、（２０）は回転子軸、（２１）は回転子軸側冷媒
排出部。
なお、各図中、同一符号は同−又は相当部分を示す。
代
理
人
曾
我
道
照
児１図
売３図
特許請求の範囲
平成１
年１１月１５日Fig. 1 is a longitudinal cross-sectional view of a main part of an embodiment of the present invention, Fig. 2 is a cross-sectional view taken along the line ■-■ in Fig. 1, and Fig. 3 is a conventional refrigerant supply and discharge of a superconducting rotating electric machine. Longitudinal cross-sectional view of main parts of the device, No. 4
The figure is a sectional view taken along the line IY-1'V in FIG. 3. (1) is the supply refrigerant, (2) is the vacuum insulation layer, (3) is the stationary side refrigerant supply pipe, (6) is the refrigerant discharge passage, (7) is the refrigerant discharge port, (20) is the rotor shaft, ( 21) is the rotor shaft side refrigerant discharge part. In each figure, the same reference numerals indicate the same or corresponding parts. Agent Doshoji Soga 1 Figure Sold 3 Figures Scope of Patent Claims November 15, 1999
Claims (1)
れた極低温冷媒の供給部と、前記軸端近くの軸外周部に
設けられた前記極低温冷媒の排出部と、この排出部およ
び前記供給部を包囲する固定側フレームを備えてなる超
電導回転電機の冷媒給排装置において、円筒でなる前記
冷媒排出部の軸部が前記回転子軸の軸部本体と分離可能
になっており、かつ、冷媒排出通路が前記円筒に設けた
軸方向孔と径方向孔とを連通して形成されていることを
特徴とする超電導回転電機の冷媒給排装置。A cryogenic refrigerant supply part provided at an opening at the shaft end of a rotor shaft including a superconducting coil, a cryogenic refrigerant discharge part provided at an outer peripheral part of the shaft near the shaft end, and this discharge part. and a refrigerant supply/discharge device for a superconducting rotating electric machine comprising a fixed side frame surrounding the supply section, wherein a cylindrical shaft section of the refrigerant discharge section is separable from a shaft main body of the rotor shaft. A refrigerant supply/discharge device for a superconducting rotating electric machine, wherein the refrigerant discharge passage is formed by communicating an axial hole and a radial hole provided in the cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1073901A JP2529381B2 (en) | 1989-03-28 | 1989-03-28 | Refrigerant supply / discharge device for superconducting rotating electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1073901A JP2529381B2 (en) | 1989-03-28 | 1989-03-28 | Refrigerant supply / discharge device for superconducting rotating electric machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02254962A true JPH02254962A (en) | 1990-10-15 |
| JP2529381B2 JP2529381B2 (en) | 1996-08-28 |
Family
ID=13531564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1073901A Expired - Fee Related JP2529381B2 (en) | 1989-03-28 | 1989-03-28 | Refrigerant supply / discharge device for superconducting rotating electric machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2529381B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002031949A1 (en) * | 2000-10-11 | 2002-04-18 | Siemens Aktiengesellschaft | Device comprising a component, which is ferromagnetic in the cryogenic temperature range and which can be subjected to mechanical stresses |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5426411A (en) * | 1977-07-30 | 1979-02-28 | Fuji Electric Co Ltd | Ultralow temperature refrigeratnt in-out device for super-conductive rotary machine |
| JPS5976149A (en) * | 1982-10-25 | 1984-05-01 | Hitachi Ltd | Helium supplying and exhausting device for superconductive rotor |
-
1989
- 1989-03-28 JP JP1073901A patent/JP2529381B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5426411A (en) * | 1977-07-30 | 1979-02-28 | Fuji Electric Co Ltd | Ultralow temperature refrigeratnt in-out device for super-conductive rotary machine |
| JPS5976149A (en) * | 1982-10-25 | 1984-05-01 | Hitachi Ltd | Helium supplying and exhausting device for superconductive rotor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002031949A1 (en) * | 2000-10-11 | 2002-04-18 | Siemens Aktiengesellschaft | Device comprising a component, which is ferromagnetic in the cryogenic temperature range and which can be subjected to mechanical stresses |
| US6798095B2 (en) * | 2000-10-11 | 2004-09-28 | Siemens Aktiengesellschaft | Device including component, which is ferromagnetic in cryogenic temperature range and can be subjected to mechanical loads |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2529381B2 (en) | 1996-08-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |