JP6165267B2 - Mri冷却装置 - Google Patents
Mri冷却装置 Download PDFInfo
- Publication number
- JP6165267B2 JP6165267B2 JP2015552664A JP2015552664A JP6165267B2 JP 6165267 B2 JP6165267 B2 JP 6165267B2 JP 2015552664 A JP2015552664 A JP 2015552664A JP 2015552664 A JP2015552664 A JP 2015552664A JP 6165267 B2 JP6165267 B2 JP 6165267B2
- Authority
- JP
- Japan
- Prior art keywords
- cryostat
- heat exchanger
- helium
- cooler
- flow
- 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 - Fee Related
Links
- 238000001816 cooling Methods 0.000 title claims description 22
- 239000001307 helium Substances 0.000 claims description 50
- 229910052734 helium Inorganic materials 0.000 claims description 50
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 claims description 50
- 238000012546 transfer Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 19
- 238000010586 diagram Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000003325 tomography Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/14—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the cycle used, e.g. Stirling cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B19/00—Machines, plants or systems, using evaporation of a refrigerant but without recovery of the vapour
- F25B19/005—Machines, plants or systems, using evaporation of a refrigerant but without recovery of the vapour the refrigerant being a liquefied gas
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/055—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B19/00—Machines, plants or systems, using evaporation of a refrigerant but without recovery of the vapour
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B19/00—Machines, plants or systems, using evaporation of a refrigerant but without recovery of the vapour
- F25B19/02—Machines, plants or systems, using evaporation of a refrigerant but without recovery of the vapour using fluid jet, e.g. of steam
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D19/00—Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
- G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
- G01R33/3804—Additional hardware for cooling or heating of the magnet assembly, for housing a cooled or heated part of the magnet assembly or for temperature control of the magnet assembly
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
- F25B2400/17—Re-condensers
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
- G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
- G01R33/381—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using electromagnets
- G01R33/3815—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using electromagnets with superconducting coils, e.g. power supply therefor
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Biophysics (AREA)
- Animal Behavior & Ethology (AREA)
- High Energy & Nuclear Physics (AREA)
- Pathology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Radiology & Medical Imaging (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Combustion & Propulsion (AREA)
- Chemical & Material Sciences (AREA)
- Electromagnetism (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Description
表1 計算上の熱交換性能例
MRIマグネットからのHe27の温度(K) 300 93
MRIマグネットへのHe26の温度(K) 246 76
ライン15内の熱交換器32からの温度(K) 280 85
ライン14内の熱交換器32への温度(K) 231 70
冷却(W) 1,470 620
サーキュレータ30の流量(g/秒) 5.0 5.0
熱交換器32内のフィン通過による圧力降下(kPa)8.1 1.8
マグネットが冷却された後、搬送ライン10および11と熱交換器32は、ネックチューブ21から取り除かれ、マグネットを冷温に維持する膨張器と交換される。現在使用されている膨張器はGMサイクルで運転し、第1ステージの直径は約100mmである。ネックチューブの直径はこれよりもやや大きい。
2 Pl(低圧)
3 Ph(高圧)
4 HX(熱交換器)
5 エンジン
6 Vi(吸気バルブ)
7 Vo(排気バルブ)
100 冷却機クライオスタット
22 冷却チューブ
200 MRIクライオスタット
21 ネックチューブ
201 MRIクライオスタット
30 サーキュレータ
32 フィンチューブHX(熱交換器)
25 再濃縮冷却機
26 ヘリウム
202 MRIクライオスタット
300 HXクライオスタット
Claims (5)
- 物体を極低温に冷却するための装置であって、
第1の圧力で冷温ヘリウムの第1の流れを出力する、ブレイトンサイクル冷却機と、
前記冷却機の低温部品を収容する冷却機クライオスタットと、
ヘリウムの第2の流れからの熱を、第2の圧力で前記第1の流れに移動させる、連結熱交換器と、
冷却された物体を含む物体クライオスタットを通して前記第2の流れを循環させるサーキュレータと、
を備え、
前記連結熱交換器および前記サーキュレータが、前記物体クライオスタットのネックチューブ内に取り外し可能に挿入されているか、あるいは、前記物体クライオスタットのネックチューブ上に位置する独立した連結熱交換器クライオスタット内に設置されている、装置。 - 前記物体クライオスタットが、MRIクライオスタットである、請求項1に記載の装置。
- 前記連結熱交換器は、フィンチューブの1以上の層からなるコイルであり、前記第1の流れは前記チューブ内を流れ、前記第2の流れは、対向流熱交換関係において軸方向に前記フィンチューブを通って流れる、請求項1に記載の装置。
- 前記第1の圧力が、前記第2の圧力より少なくとも3倍大きい、請求項1に記載の装置。
- 物体を極低温に冷却するための方法であって、
ブレイトンサイクル冷却機からの冷温ヘリウムの第1の流れを、第1の圧力で連結熱交換器に出力し、
前記連結熱交換器において、ヘリウムの第2の流れからの熱を第2の圧力で前記第1の流れに移動させ、
前記第2の流れ中のサーキュレータを用いて、冷却される物体を含む物体クライオスタットを通して前記第2の流れを流し、
前記連結熱交換器およびサーキュレータを、前記物体クライオスタットに取り外し可能に接続する、方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201361751457P | 2013-01-11 | 2013-01-11 | |
US61/751,457 | 2013-01-11 | ||
PCT/US2014/010054 WO2014109941A1 (en) | 2013-01-11 | 2014-01-02 | Mri cool down apparatus |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2016513978A JP2016513978A (ja) | 2016-05-19 |
JP6165267B2 true JP6165267B2 (ja) | 2017-07-19 |
Family
ID=51167298
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2015552664A Expired - Fee Related JP6165267B2 (ja) | 2013-01-11 | 2014-01-02 | Mri冷却装置 |
Country Status (7)
Country | Link |
---|---|
US (1) | US9897350B2 (ja) |
JP (1) | JP6165267B2 (ja) |
KR (1) | KR101640359B1 (ja) |
CN (1) | CN105008821B (ja) |
DE (1) | DE112014000403B4 (ja) |
GB (1) | GB2524185B (ja) |
WO (1) | WO2014109941A1 (ja) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10677498B2 (en) | 2012-07-26 | 2020-06-09 | Sumitomo (Shi) Cryogenics Of America, Inc. | Brayton cycle engine with high displacement rate and low vibration |
JP6400100B2 (ja) * | 2013-12-19 | 2018-10-03 | スミトモ (エスエイチアイ) クライオジェニックス オブ アメリカ インコーポレイテッドSumitomo(SHI)Cryogenics of America,Inc. | ハイブリッド型ブレイトン・ギフォード・マクマホン膨張機 |
EP3234482A1 (en) * | 2014-12-10 | 2017-10-25 | European Organization For Nuclear Research Cern | Closed cycle cryogen recirculation system and method |
GB2553946B (en) | 2015-06-03 | 2020-09-30 | Sumitomo Shi Cryogenics Of America Inc | Gas balanced engine with buffer |
EP3559565B1 (en) * | 2016-12-20 | 2022-06-01 | Sumitomo (Shi) Cryogenics of America, Inc. | System for warming-up and cooling-down a superconducting magnet |
CN113740789B (zh) * | 2018-01-19 | 2023-09-19 | 北京绪水互联科技有限公司 | 定量描述冷头效率的方法 |
US20200081083A1 (en) * | 2018-09-10 | 2020-03-12 | General Electric Company | Systems and methods for cryocooler thermal management |
CN109752611A (zh) * | 2018-12-25 | 2019-05-14 | 北京动力机械研究所 | 一种闭式布雷顿循环发电系统模拟试验台 |
US11384883B2 (en) * | 2020-01-31 | 2022-07-12 | General Electric Company | Cryogenic transfer line coupling assembly |
CN112768172B (zh) * | 2020-12-29 | 2023-07-28 | 上海联影医疗科技股份有限公司 | 一种物体冷却装置 |
Family Cites Families (24)
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JPS5758302A (en) * | 1980-09-24 | 1982-04-08 | Mitsubishi Electric Corp | Helium refrigerating apparatus |
JPS58112305A (ja) * | 1981-12-25 | 1983-07-04 | Toshiba Corp | 超電導磁石装置 |
US4484458A (en) | 1983-11-09 | 1984-11-27 | Air Products And Chemicals, Inc. | Apparatus for condensing liquid cryogen boil-off |
JPH01269874A (ja) * | 1988-04-19 | 1989-10-27 | Mitsubishi Electric Corp | 冷凍装置 |
FI912656A (fi) | 1990-06-25 | 1991-12-26 | Siemens Ag | Kylanordning foer en squid-maetanordning. |
JPH05126426A (ja) | 1991-11-06 | 1993-05-21 | Sanyo Electric Co Ltd | 極低温冷凍機 |
US5461873A (en) | 1993-09-23 | 1995-10-31 | Apd Cryogenics Inc. | Means and apparatus for convectively cooling a superconducting magnet |
DE69523883T2 (de) * | 1994-12-29 | 2002-08-29 | Gen Electric | Supraleitender Magnet mit Helium-Rekondensierung |
JPH08222429A (ja) | 1995-02-13 | 1996-08-30 | Hitachi Ltd | 極低温装置 |
US5687574A (en) | 1996-03-14 | 1997-11-18 | Apd Cryogenics, Inc. | Throttle cycle cryopumping system for Group I gases |
JPH1163697A (ja) * | 1997-08-08 | 1999-03-05 | Sumitomo Heavy Ind Ltd | 分離型極低温冷却装置 |
US6347522B1 (en) | 2000-01-11 | 2002-02-19 | American Superconductor Corporation | Cooling system for HTS machines |
JP2003139427A (ja) | 2001-11-05 | 2003-05-14 | Aisin Seiki Co Ltd | 冷却装置 |
US6923009B2 (en) * | 2003-07-03 | 2005-08-02 | Ge Medical Systems Global Technology, Llc | Pre-cooler for reducing cryogen consumption |
JP4404021B2 (ja) | 2005-06-30 | 2010-01-27 | 株式会社日立製作所 | Mri用超電導磁石 |
GB2431981B (en) * | 2005-11-01 | 2008-06-18 | Siemens Magnet Technology Ltd | Apparatus and methods for transporting cryogenically cooled goods or equipement |
GB2433581B (en) | 2005-12-22 | 2008-02-27 | Siemens Magnet Technology Ltd | Closed-loop precooling of cryogenically cooled equipment |
GB2436233B (en) | 2006-02-17 | 2008-03-19 | Siemens Magnet Technology Ltd | Current leads for cryogenically cooled equipment |
JP5833284B2 (ja) | 2006-03-17 | 2015-12-16 | シーメンス ピーエルシー | 冷却装置 |
US9080794B2 (en) | 2010-03-15 | 2015-07-14 | Sumitomo (Shi) Cryogenics Of America, Inc. | Gas balanced cryogenic expansion engine |
EP2562489B1 (en) * | 2010-04-23 | 2020-03-04 | Sumitomo Heavy Industries, LTD. | Cooling system and cooling method |
KR101342455B1 (ko) | 2010-10-08 | 2013-12-17 | 스미토모 크라이어제닉스 오브 아메리카 인코포레이티드 | 고속 냉각 극저온 냉동기 |
US8776534B2 (en) | 2011-05-12 | 2014-07-15 | Sumitomo (Shi) Cryogenics Of America Inc. | Gas balanced cryogenic expansion engine |
US9546647B2 (en) * | 2011-07-06 | 2017-01-17 | Sumitomo (Shi) Cryogenics Of America Inc. | Gas balanced brayton cycle cold water vapor cryopump |
-
2014
- 2014-01-02 WO PCT/US2014/010054 patent/WO2014109941A1/en active Application Filing
- 2014-01-02 DE DE112014000403.0T patent/DE112014000403B4/de not_active Expired - Fee Related
- 2014-01-02 GB GB1510022.5A patent/GB2524185B/en not_active Expired - Fee Related
- 2014-01-02 CN CN201480004578.2A patent/CN105008821B/zh not_active Expired - Fee Related
- 2014-01-02 KR KR1020157021208A patent/KR101640359B1/ko active IP Right Grant
- 2014-01-02 US US14/655,853 patent/US9897350B2/en active Active
- 2014-01-02 JP JP2015552664A patent/JP6165267B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US20150354865A1 (en) | 2015-12-10 |
DE112014000403T5 (de) | 2015-09-24 |
GB201510022D0 (en) | 2015-07-22 |
CN105008821B (zh) | 2017-03-15 |
JP2016513978A (ja) | 2016-05-19 |
GB2524185A (en) | 2015-09-16 |
GB2524185B (en) | 2019-04-17 |
DE112014000403B4 (de) | 2018-04-05 |
US9897350B2 (en) | 2018-02-20 |
KR20150100942A (ko) | 2015-09-02 |
KR101640359B1 (ko) | 2016-07-22 |
WO2014109941A1 (en) | 2014-07-17 |
CN105008821A (zh) | 2015-10-28 |
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