JPS6310567B2 - - Google Patents
Info
- Publication number
- JPS6310567B2 JPS6310567B2 JP58206906A JP20690683A JPS6310567B2 JP S6310567 B2 JPS6310567 B2 JP S6310567B2 JP 58206906 A JP58206906 A JP 58206906A JP 20690683 A JP20690683 A JP 20690683A JP S6310567 B2 JPS6310567 B2 JP S6310567B2
- Authority
- JP
- Japan
- Prior art keywords
- superconducting
- precooling
- cooling
- cooling system
- superconducting coil
- 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
- 238000001816 cooling Methods 0.000 claims description 44
- 239000007788 liquid Substances 0.000 claims description 20
- 230000001105 regulatory effect Effects 0.000 claims description 18
- 239000003507 refrigerant Substances 0.000 claims description 10
- 238000010586 diagram Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F6/00—Superconducting magnets; Superconducting coils
- H01F6/04—Cooling
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は超電導装置、特に超電導コイルの冷却
系統の構成に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Application of the Invention] The present invention relates to a superconducting device, particularly to a configuration of a cooling system for a superconducting coil.
従来の超電導装置は、１つの超電導コイルから
成り、従つて、その冷却系統も１つの超電導コイ
ルを制御するのに好適な構成をとつていた。
A conventional superconducting device consists of one superconducting coil, and therefore its cooling system also has a configuration suitable for controlling one superconducting coil.
最近、複数の超電導コイルを有する超電導装置
が開発されているが、この種の超電導装置は従来
の１つの超電導コイルとその冷却系統から成るユ
ニツトを複数集めて構成していたに過ぎなかつ
た。その一例を第１図〜第３図に示す。 Recently, superconducting devices having multiple superconducting coils have been developed, but this type of superconducting device was conventionally constructed by collecting multiple units consisting of one superconducting coil and its cooling system. An example is shown in FIGS. 1 to 3.
断熱容器１内には複数の超電導コイル３が配置
され、各超電導コイル３の上部にはそれぞれ冷媒
５を溜める予備液溜４が設けられ、この予備液溜
４に運転時冷却配管７と回収配管８が接続されて
いる。また超電導コイル３の下部には予冷配管６
が接続されている。断熱容器１の内部は真空にな
され、熱輻射シールド２と共働で熱の侵入を防い
でいる。 A plurality of superconducting coils 3 are arranged in the heat insulating container 1, and a preliminary liquid reservoir 4 for storing a refrigerant 5 is provided above each superconducting coil 3, and a cooling piping 7 during operation and a recovery piping are provided in the preliminary liquid reservoir 4. 8 are connected. In addition, a pre-cooling pipe 6 is provided at the bottom of the superconducting coil 3.
is connected. The inside of the heat insulating container 1 is kept in a vacuum, and works together with the thermal radiation shield 2 to prevent heat from entering.
冷却系統を第３図によつて説明する。予冷配管
６は予冷調整弁１０および冷媒輸送配管１２を介
して供給源１３に接続されている。一方、予備液
溜４に接続された運転時冷却配管７は、調整弁１
１および輸送配管１２′を介して供給源１３に接
続されている。予備液溜４に接続された回収配管
８も供給源１３に接続されている。各予備液溜４
にはそれぞれ液面計が設けられ、液面計からの信
号によつて各調整弁１１が制御され、液面が一定
に保持される。 The cooling system will be explained with reference to FIG. The precooling pipe 6 is connected to a supply source 13 via a precooling regulating valve 10 and a refrigerant transport pipe 12. On the other hand, the operating cooling pipe 7 connected to the preliminary liquid reservoir 4 is connected to the regulating valve 1
1 and a supply source 13 via a transport pipe 12'. A recovery pipe 8 connected to the preliminary liquid reservoir 4 is also connected to the supply source 13 . Each reserve reservoir 4
Each is provided with a liquid level gauge, and each regulating valve 11 is controlled by a signal from the liquid level gauge to maintain a constant liquid level.
超電導コイル３の運転前に、予備調整弁１０を
開いて超電導コイル３を運転可能な温度にまで冷
却する。この時、冷媒５は予備液溜４に溜めら
れ、超電導コイル３の予備冷却が終わると予冷調
整弁１０が閉じられて、予冷系統が封じ切られ
る。 Before operating the superconducting coil 3, the preliminary adjustment valve 10 is opened to cool the superconducting coil 3 to a temperature at which it can be operated. At this time, the refrigerant 5 is stored in the pre-cooling reservoir 4, and when the pre-cooling of the superconducting coil 3 is completed, the pre-cooling regulating valve 10 is closed and the pre-cooling system is shut off.
超電導コイル３の運転時は、調整弁１１を開い
て予備液溜４内の冷媒を補充しつつ冷却を行な
う。予備液溜４内に溜つた蒸発ガスは回収配管８
によつて回収される。 When the superconducting coil 3 is in operation, the regulating valve 11 is opened to replenish the refrigerant in the preliminary liquid reservoir 4 and perform cooling. The evaporated gas accumulated in the preliminary liquid reservoir 4 is collected by a recovery pipe 8.
collected by.
上記のように従来の冷却系統は、超電導コイル
３の数に合せて冷却系統を単純に付設していた。
このため冷却系統が複雑になつていた。 As described above, in the conventional cooling system, cooling systems were simply installed in accordance with the number of superconducting coils 3.
As a result, the cooling system has become complicated.
そこで本発明者達は冷却系統について検討し
た。一般に超電導装置の冷却は第４図に示すよう
に予冷段階と運転段階とに分けられる。予冷段階
は超電導コイルを常温から運転可能な温度になる
まで冷却するもので、超電導コイルの特性や外部
条件によつて冷却特性は異なる。一方、運転段階
は超電導コイルの温度を一定に保つもので、予冷
段階に比べて各超電導コイル間での特性上の差は
少ない。 Therefore, the present inventors investigated the cooling system. Generally, cooling of a superconducting device is divided into a precooling stage and an operation stage, as shown in FIG. The pre-cooling stage cools the superconducting coil from room temperature to a temperature at which it can be operated, and the cooling characteristics vary depending on the characteristics of the superconducting coil and external conditions. On the other hand, during the operation stage, the temperature of the superconducting coils is kept constant, and there are fewer differences in characteristics between the superconducting coils than during the pre-cooling stage.
今、３つの超電導コイル３ａ，３ｂ，３ｃをも
つ超電導装置は、第４図の如くそれぞれ予冷特性
が異なるため、運転可能な温度Ｔになるまでの時
間もTa、Tb、Tcと異なる。従つて、超電導装
置としての予冷時間は、最も予冷時間の長い超電
導コイル３ａによつて決まつてしまうため、各超
電導コイル毎に予冷系統を設けるのが良い。特
に、途中まで共通配管として各超電導コイルに冷
媒を供給すると、早く冷却された超電導コイルだ
けに冷媒が流れ、冷却の遅い超電導コイルはいつ
までも温度Ｔにならない。 Now, since the superconducting device having three superconducting coils 3a, 3b, and 3c has different precooling characteristics as shown in FIG. 4, the time taken to reach the operable temperature T is also different for Ta, Tb, and Tc. Therefore, since the precooling time of the superconducting device is determined by the superconducting coil 3a having the longest precooling time, it is preferable to provide a precooling system for each superconducting coil. In particular, if refrigerant is supplied to each superconducting coil partway through a common pipe, the refrigerant will flow only to the superconducting coils that are cooled quickly, and the superconducting coils that are cooled slowly will never reach the temperature T.
本発明の目的は、上記の検討を基にして冷却系
統を簡素化した超電導装置を提供するにある。
An object of the present invention is to provide a superconducting device with a simplified cooling system based on the above considerations.
本発明は、上記した検討を基に、予冷系統は各
超電導コイル毎にそれぞれ予冷調整弁をもつて構
成し、一方、運転時冷却系統は各超電導コイルに
共通の予備液溜を設けて１つの調整弁で制御する
ようにしたことを特徴とする。
The present invention is based on the above studies, and the pre-cooling system is configured with a pre-cooling regulating valve for each superconducting coil, while the operating cooling system is configured with a common preliminary liquid reservoir for each superconducting coil. It is characterized by being controlled by a regulating valve.
以下本発明を図面に示す実施例によつて説明す
る。
The present invention will be explained below with reference to embodiments shown in the drawings.
第５図に示す断熱容器１内には複数の超電導コ
イル３が配置され、これら超電導コイル３の上方
に共通の予備液溜４が設けられている。次に予冷
系統について説明すると、各超電導コイル３に接
続して予冷配管６が設けられている。各予冷配管
６は断熱容器１の入口もしくは外部に設けた予冷
調整弁１０および冷媒輸送配管１２をそれぞれ介
して供給源１３に接続されている。 A plurality of superconducting coils 3 are arranged in a heat insulating container 1 shown in FIG. 5, and a common preliminary liquid reservoir 4 is provided above these superconducting coils 3. Next, the precooling system will be described. A precooling pipe 6 is provided connected to each superconducting coil 3. Each precooling pipe 6 is connected to a supply source 13 via a precooling regulating valve 10 and a refrigerant transport pipe 12 provided at the entrance or outside of the heat insulating container 1, respectively.
このような予冷系統であるため、各超電導コイ
ルの予冷特性を考慮しつつ予冷調整弁１０を制御
して、最も効率的に全ての超電導コイル３を運転
可能な温度まで冷却することができる。 With such a precooling system, it is possible to control the precooling adjustment valve 10 while taking into account the precooling characteristics of each superconducting coil, and to cool all the superconducting coils 3 to the operating temperature most efficiently.
次に運転時冷却系統について説明する。予備液
溜４に接続された運転時冷却配管７は、断熱容器
１の入口もしくは外部に設けた１つの調整弁１１
および共通輸送管１２′を介して供給源１３に接
続されている。調整弁１１は、共通の予備液溜４
に設けた液面計の信号９によつて制御される。こ
の運転時冷却系統は、予備液溜４内の冷媒の液面
を管理するものであり、各超電導コイル３間の特
性差を考慮する必要がないので、共通構成とする
ことによつて構成が簡素化されている。 Next, the cooling system during operation will be explained. The operating cooling pipe 7 connected to the preliminary liquid reservoir 4 is connected to one regulating valve 11 provided at the inlet or outside of the heat insulating container 1.
and is connected to the supply source 13 via a common transport pipe 12'. The regulating valve 11 has a common preliminary liquid reservoir 4.
It is controlled by a signal 9 from a liquid level gauge installed at. This cooling system during operation manages the liquid level of the refrigerant in the reserve liquid reservoir 4, and there is no need to take into account the differences in characteristics between the superconducting coils 3, so the configuration can be simplified by having a common configuration. Simplified.
このように共通化可能な冷却系統と共通化不可
能な冷却系統を究明して冷却系統を構成すること
によつて簡素化を図ることができる。 Simplification can be achieved by configuring the cooling system by determining which cooling systems can be shared and which cannot be shared.
第６図は他の実施例による超電導装置を示し、
第５図の実施例との相違点について説明する。 FIG. 6 shows a superconducting device according to another embodiment,
Differences from the embodiment shown in FIG. 5 will be explained.
各予冷配管６にそれぞれ接続された予冷調整弁
１０は、断熱容器１の外部から制御可能にされて
いる。この予冷調整弁１０の供給源側は共通の案
内配管１５にまとめられて切換弁１４に接続され
ている。供給源１３に接続した輸送配管１２は、
断熱容器１内で２つに分岐されている。分岐され
た輸送配管の一方は先の切換弁１４に接続され、
他方は調整弁１１に接続されている。切換弁１４
は、予備冷却が終わつたら閉状態にして、予冷系
統を封じ切る。調整弁１１は予備冷却時に閉じて
おき、運転時冷却のとき開く。 The precooling adjustment valves 10 connected to each precooling pipe 6 are controllable from the outside of the heat insulating container 1. The supply source side of this precooling regulating valve 10 is connected to a common guide pipe 15 and a switching valve 14 . The transport pipe 12 connected to the supply source 13 is
It is branched into two parts within the heat insulating container 1. One of the branched transport pipes is connected to the switching valve 14,
The other end is connected to the regulating valve 11. Switching valve 14
When the pre-cooling is completed, the system is closed and the pre-cooling system is shut off. The regulating valve 11 is closed during preliminary cooling and opened during operational cooling.
このように供給源１３に接続した輸送配管１２
に分岐部を形成し、分岐部の一方を運転時冷却系
統の調整弁１１に接続し、分岐部の他方を共通の
案内配管１５を介して予冷調整弁１０に接続した
ため、輸送配管１２を１本にして断熱容器１内へ
の熱侵入を少なくすることができる。 The transport pipe 12 connected to the supply source 13 in this way
One of the branched parts was connected to the regulating valve 11 of the cooling system during operation, and the other branched part was connected to the precooling regulating valve 10 via the common guide pipe 15. Heat intrusion into the heat insulating container 1 can be reduced.
以上のように本発明は、予冷系統を超電導コイ
ル毎に設けており、一方、運転時冷却系統は共通
の予備液溜と調整弁をもつて構成したため、予冷
特性の異なる各超電導コイルを効率良く運転可能
な温度まで冷却することができると共に、配管系
統を簡素化して断熱容器内への熱の侵入を少なく
することができる。
As described above, in the present invention, a precooling system is provided for each superconducting coil, while the cooling system during operation is configured with a common reserve liquid reservoir and a regulating valve, so that each superconducting coil with different precooling characteristics can be efficiently operated. It is possible to cool the container to a temperature at which it can be operated, and to simplify the piping system, thereby reducing the amount of heat that enters into the heat insulating container.
第１図は従来の超電導装置の部分断面図、第２
図は第１図の平面図、第３図は第１図の冷却系統
図、第４図は超電導コイルの冷却特性図、第５図
および第６図は本発明のそれぞれ異なる実施例に
よる冷却系統図である。
１……断熱容器、３……超電導コイル、４……
予備液溜、５……冷媒、６……予冷配管、７……
運転時冷却配管、１０……予冷調整弁、１１……
調整弁、１２……輸送配管、１３……供給源。
Figure 1 is a partial cross-sectional view of a conventional superconducting device, Figure 2
The figure is a plan view of Fig. 1, Fig. 3 is a cooling system diagram of Fig. 1, Fig. 4 is a cooling characteristic diagram of a superconducting coil, and Figs. 5 and 6 are cooling systems according to different embodiments of the present invention. It is a diagram. 1...Insulated container, 3...Superconducting coil, 4...
Preliminary liquid reservoir, 5... Refrigerant, 6... Precooling piping, 7...
Cooling piping during operation, 10... Pre-cooling adjustment valve, 11...
Regulating valve, 12...transport piping, 13...supply source.
Claims (1)
電導コイルを運転可能な温度まで予備冷却する予
冷系統と、上記超電導コイルの上部に設けた予備
液溜内に冷媒を供給して運転時の上記超電導コイ
ルを冷却する運転時冷却系統とを備え、上記両系
統を上記断熱容器外の供給源に接続した超電導装
置において、上記予冷系統は、上記各超電導コイ
ル毎に予冷配管と予冷調整弁とを介して上記供給
源に接続し、上記運転時冷却系統は、上記各超電
導コイルに共通の予備液溜と共通の調整弁とを介
して上記供給源に接続したことを特徴とする超電
導装置。1 In an insulated container, a plurality of superconducting coils, a pre-cooling system that pre-cools each superconducting coil to a temperature at which it can be operated, and a refrigerant is supplied to a preliminary liquid reservoir provided above the superconducting coils to cool the above-mentioned superconducting coils during operation. In a superconducting device comprising an operating cooling system for cooling superconducting coils, and both systems connected to a supply source outside the heat insulating container, the precooling system includes a precooling pipe and a precooling adjustment valve for each superconducting coil. and the operating cooling system is connected to the supply source via a common preliminary liquid reservoir and a common regulating valve for each of the superconducting coils.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58206906A JPS60100406A (en) | 1983-11-05 | 1983-11-05 | Superconductive device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58206906A JPS60100406A (en) | 1983-11-05 | 1983-11-05 | Superconductive device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60100406A JPS60100406A (en) | 1985-06-04 |
| JPS6310567B2 true JPS6310567B2 (en) | 1988-03-08 |
Family
ID=16531023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58206906A Granted JPS60100406A (en) | 1983-11-05 | 1983-11-05 | Superconductive device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60100406A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6331542U (en) * | 1986-08-15 | 1988-03-01 | ||
| JPS63172147U (en) * | 1987-04-28 | 1988-11-09 |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3743033A1 (en) * | 1987-12-18 | 1989-06-29 | Asea Brown Boveri | MAGNETIC SYSTEM |
| JP2635165B2 (en) * | 1989-04-28 | 1997-07-30 | 株式会社日立製作所 | Forced cooling superconducting coil device |
-
1983
- 1983-11-05 JP JP58206906A patent/JPS60100406A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6331542U (en) * | 1986-08-15 | 1988-03-01 | ||
| JPS63172147U (en) * | 1987-04-28 | 1988-11-09 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60100406A (en) | 1985-06-04 |
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