JPH0317057B2 - - Google Patents
Info
- Publication number
- JPH0317057B2 JPH0317057B2 JP5917484A JP5917484A JPH0317057B2 JP H0317057 B2 JPH0317057 B2 JP H0317057B2 JP 5917484 A JP5917484 A JP 5917484A JP 5917484 A JP5917484 A JP 5917484A JP H0317057 B2 JPH0317057 B2 JP H0317057B2
- Authority
- JP
- Japan
- Prior art keywords
- refrigerant
- conduit
- inner tank
- cryostat
- radiation shield
- 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
- 239000003507 refrigerant Substances 0.000 claims description 41
- 230000005855 radiation Effects 0.000 claims description 17
- 239000007788 liquid Substances 0.000 description 23
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 239000007789 gas Substances 0.000 description 4
- 239000001307 helium Substances 0.000 description 4
- 229910052734 helium Inorganic materials 0.000 description 4
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910052757 nitrogen Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000002826 coolant Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000005339 levitation Methods 0.000 description 1
Landscapes
- Devices That Are Associated With Refrigeration Equipment (AREA)
Description
【発明の詳細な説明】
〔発明の対象〕
本発明は、超電導磁石を収納しているクライオ
スタツトの液槽をおおつているふく射シールド板
の冷却装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] The present invention relates to a cooling device for a radiation shield plate covering a liquid tank of a cryostat housing a superconducting magnet.
本発明は、磁気浮上列車の超電導磁石を収納し
ているクライオスタツト、あるいはスキツド等を
収納しているクライオスタツト等に利用される。
INDUSTRIAL APPLICATION This invention is utilized for the cryostat which houses the superconducting magnet of a magnetic levitation train, or the cryostat which houses skids, etc.
本発明に関する従来技術を第１図に示す。冷媒
供給装置１０の冷媒内槽１内の冷媒板５（例えば
液体窒素等）は、導管３を通つて、ポンプ２によ
つて昇圧され、導管４内を流れ、クライオスタツ
ト２０のふく射シールド板２１に固着せしめてあ
る導管２２内を流れると、真空槽２４からふく射
シールド板２１に侵入するふく射熱と、支持材２
８を伝わつて侵入する伝導熱によつて、蒸発し、
気体となつて導管２３を通つて、大気に放出され
る。このようにして、超電導磁石２５が収納され
ている液体ヘリウム２６が入つている内槽２７に
は、直接、真空槽２４からふく射熱や伝導熱が入
らないようにせしめて、液体ヘリウム２６の蒸発
量を少なくしている。
A prior art related to the present invention is shown in FIG. The refrigerant plate 5 (for example, liquid nitrogen) in the refrigerant inner tank 1 of the refrigerant supply device 10 passes through the conduit 3 , is pressurized by the pump 2 , flows through the conduit 4 , and reaches the radiation shield plate 21 of the cryostat 20 . When flowing through the conduit 22 fixed to the support material 2, radiation heat enters the radiation shield plate 21 from the vacuum chamber 24 and
Evaporates due to conductive heat that penetrates through 8,
It is discharged as a gas through conduit 23 to the atmosphere. In this way, the inner tank 27 containing the liquid helium 26 in which the superconducting magnet 25 is housed is prevented from directly receiving radiant heat or conduction heat from the vacuum tank 24, thereby reducing the amount of evaporation of the liquid helium 26. is decreasing.
この従来のふく射シールド板の冷却装置は、冷
媒内槽１内の冷媒液がなくなるたびに、外部より
補給しなければならないという欠点がある。かか
る欠点は、真空槽２４からふく射シールド板２１
に侵入したふく射熱によつて蒸発した冷媒液５
が、導管２３を通つて大気に放出されるためであ
る。
This conventional radiation shield plate cooling device has a drawback that every time the refrigerant liquid in the refrigerant inner tank 1 runs out, it must be replenished from the outside. Such a drawback is that the radiation shield plate 21 from the vacuum chamber 24
Refrigerant liquid 5 evaporated by the radiant heat that entered the
is released into the atmosphere through the conduit 23.
そこで、本発明は、クライオスタツトのふく射
シールド板を冷却している冷媒液が、クライオス
タツトの真空槽１０５より侵入するふく射熱と、
支持材１０６を伝わつて侵入する伝導熱によつて
蒸発しても、冷媒供給装置５０に冷媒液を供給す
る必要がないようにすることを技術的課題とす
る。
Therefore, the present invention prevents the radiation heat entering from the vacuum chamber 105 of the cryostat from the refrigerant liquid cooling the radiation shield plate of the cryostat.
A technical problem is to eliminate the need to supply refrigerant liquid to the refrigerant supply device 50 even if the refrigerant liquid evaporates due to the conductive heat that penetrates through the support material 106.
上記技術的課題を解決するために講じた技術的
手段は、冷凍機５１に冷媒ガスを液化せしめる凝
縮変換器５２を設け、該凝縮熱交換器５２を冷媒
内槽５３内に配置し、前記冷媒内槽５３にポンプ
５５の吸込み口５６を連通し、該ポンプ５５の吐
出口５７に導管５８を連通させ、該導管５８をク
ライオスタツト１００内に設けた導管１０１に連
通し、該導管１０１を該導管１０２に連通させ、
さらに該導管１０２の一端を冷媒内槽５３の凝縮
熱交換器５２近傍に配設し該導管１０１を液体ヘ
リウム等の冷媒１０４が充填されている内槽１１
２をおおつているふく射シールド板１０３に固着
せしめ、該冷媒内槽５３に液体窒素等の冷媒液５
４を充填することである。
The technical means taken to solve the above technical problem is that a refrigerator 51 is provided with a condensing converter 52 that liquefies refrigerant gas, the condensing heat exchanger 52 is disposed inside a refrigerant inner tank 53, and the refrigerant gas is The suction port 56 of the pump 55 is communicated with the inner tank 53, the conduit 58 is communicated with the discharge port 57 of the pump 55, the conduit 58 is communicated with a conduit 101 provided in the cryostat 100, and the conduit 101 is connected with the conduit 101 provided in the cryostat 100. communicated with the conduit 102;
Further, one end of the conduit 102 is disposed near the condensing heat exchanger 52 of the refrigerant inner tank 53, and the conduit 101 is connected to the inner tank 10 filled with a refrigerant 104 such as liquid helium.
The refrigerant liquid 5 such as liquid nitrogen is fixed to the radiation shield plate 103 covering the refrigerant inner tank 53.
4.
上記技術的手段は、次のように作用する。すな
わち、冷媒内槽５３内の液体窒素等の冷媒液５４
は、ポンプ５５によつて昇圧され、導管５８を通
つてクライオスタツト１００内の導管１０１に流
入すると、真空槽１０５からふく射シールド板１
０３に侵入するふく射熱と、支持材１０６を伝わ
つて侵入する伝導熱によつて蒸発し、ふく射シー
ルド板１０３の温度をほぼ冷媒液５４の液化温度
にせしめ、液体ヘリウム等の冷媒１０４が充填し
ている低槽１１２は、直接真空槽１０５から熱が
侵入しないようになる。導管１０１で蒸発した冷
媒は、導管１０２を通つて凝縮熱交換器５２に流
入し、冷凍機５１で発生している冷媒液５４の液
化温度より低い冷凍によつて液化され、液体とな
つて冷媒内槽５３に再びもどる。この結果、冷媒
液５４は外部より供給する必要がなくなる。
The above technical means works as follows. That is, the refrigerant liquid 54 such as liquid nitrogen in the refrigerant inner tank 53
When the pressure is increased by the pump 55 and flows into the conduit 101 in the cryostat 100 through the conduit 58, the radiation shield plate 1 is discharged from the vacuum chamber 105.
The radiation shield plate 103 is evaporated by the radiation heat that penetrates into the cooling medium 03 and the conductive heat that penetrates through the supporting material 106, and the temperature of the radiation shield plate 103 is brought to approximately the liquefaction temperature of the refrigerant liquid 54, and the refrigerant 104 such as liquid helium is filled. Heat does not directly intrude into the low chamber 112 from the vacuum chamber 105. The refrigerant evaporated in the conduit 101 flows into the condensing heat exchanger 52 through the conduit 102, and is liquefied by freezing at a temperature lower than the liquefaction temperature of the refrigerant liquid 54 generated in the refrigerator 51. Return to the inner tank 53 again. As a result, there is no need to supply the refrigerant liquid 54 from outside.
本発明は、次の特有の効果を生じる。すなわ
ち、冷凍機５１が運転されている間は、冷媒液５
４の蒸発した冷媒ガスが、冷凍機５１の凝縮熱交
換機５２で常時液化されているので、冷媒内槽５
３の冷媒液５４の量は少なくてすみ、冷媒液５４
の重量も小さくなり、冷媒内槽５３も小型軽量と
なり、その結果、真空槽１０５も小型軽量とな
る。
The present invention produces the following unique effects. That is, while the refrigerator 51 is operating, the refrigerant liquid 5
Since the evaporated refrigerant gas of No. 4 is constantly liquefied in the condensing heat exchanger 52 of the refrigerator 51, the refrigerant inner tank 5
The amount of refrigerant liquid 54 in No. 3 is small, and the amount of refrigerant liquid 54
The weight of the refrigerant inner tank 53 also becomes smaller and lighter, and as a result, the vacuum chamber 105 also becomes smaller and lighter.
本発明の技術的手段について、第２図に基いて
説明する。５０は冷媒供給装置、５１は冷凍機、
５２は凝縮熱交換器、５３は冷媒内槽、５４は冷
媒液、５５はポンプ、５６は吸込み口、５７は吐
出口、そして５８は導管である。
The technical means of the present invention will be explained based on FIG. 2. 50 is a refrigerant supply device, 51 is a refrigerator,
52 is a condensing heat exchanger, 53 is a refrigerant inner tank, 54 is a refrigerant liquid, 55 is a pump, 56 is a suction port, 57 is a discharge port, and 58 is a conduit.
また、１００はクライオスタツト、１０１，１
０２は導管、１０３はふく射シールド板、１０４
は冷媒液、１０５は真空槽、１０６は支持材、１
０７は超電導磁石、そして１１２は内槽である。 Also, 100 is a cryostat, 101,1
02 is a conduit, 103 is a radiation shield plate, 104
1 is a refrigerant liquid, 105 is a vacuum chamber, 106 is a support material, 1
07 is a superconducting magnet, and 112 is an inner tank.
第１図は従来のクライオスタツトの回路図、そ
して第２図は本発明の一実施例に係るクライオス
タツトの回路図である。
５１……冷凍機、５２……凝縮熱交換器、５３
……冷媒内槽、５５……ポンプ、５６……吸込み
口、５７……吐出口、５８……導管、１００……
クライオスタツト、１０１，１０２……導管、１
０３……ふく射シールド板、１１２……内槽。
FIG. 1 is a circuit diagram of a conventional cryostat, and FIG. 2 is a circuit diagram of a cryostat according to an embodiment of the present invention. 51... Refrigerator, 52... Condensing heat exchanger, 53
... Refrigerant inner tank, 55 ... Pump, 56 ... Suction port, 57 ... Discharge port, 58 ... Conduit, 100 ...
Cryostat, 101, 102... Conduit, 1
03... Radiation shield plate, 112... Inner tank.
Claims (1)
ド板に第２導管を固着させ、 前記第１導管と該第２導管とを接続し、 該第２導管の一端を前記冷媒内槽の前記凝縮熱
交換器近傍に配設し、 前記冷媒内槽に冷媒を充填してなる クライオスタツト用ふく射シールド装置。[Claims] 1. A refrigerating machine is provided with a condensing heat exchanger, the condensing heat exchanger is disposed in a refrigerant inner tank, a suction port of a pump is communicated with the refrigerant inner tank, and a discharge port of the pump is connected to the refrigerant inner tank. communicating the first conduit, fixing the second conduit to a radiation shield plate disposed within the cryostat, connecting the first conduit and the second conduit, and inserting one end of the second conduit into the refrigerant. A radiation shield device for a cryostat, which is arranged near the condensing heat exchanger in a tank, and the refrigerant inner tank is filled with a refrigerant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5917484A JPS60202278A (en) | 1984-03-26 | 1984-03-26 | Cooling device of radiation shielding plate for cryostat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5917484A JPS60202278A (en) | 1984-03-26 | 1984-03-26 | Cooling device of radiation shielding plate for cryostat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60202278A JPS60202278A (en) | 1985-10-12 |
| JPH0317057B2 true JPH0317057B2 (en) | 1991-03-07 |
Family
ID=13105757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5917484A Granted JPS60202278A (en) | 1984-03-26 | 1984-03-26 | Cooling device of radiation shielding plate for cryostat |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60202278A (en) |
-
1984
- 1984-03-26 JP JP5917484A patent/JPS60202278A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60202278A (en) | 1985-10-12 |
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