公开(公告)号：US20100005814A1

公开(公告)日：2010-01-14

申请号：US12458121

申请日：2009-07-01

申请人： Marco Strobel

发明人： Marco Strobel

IPC分类号： F25D23/00 ,  F25B25/00

CPC分类号： F25D19/006 ,  F25D3/10 ,  F25D16/00 ,  H01F6/04

摘要： A method for cooling a cryostat configuration (1, 1′) during transport, wherein the cryostat configuration (1) comprises a superconducting magnet coil (2) in a helium tank (8) containing liquid helium (9), which is surrounded by at least one radiation shield (10), wherein the cooling inside the cryostat configuration (1, 1′) in stationary operation is performed entirely without liquid nitrogen by means of a refrigerator, characterized in that during transport, the refrigerator is switched off and instead, liquid nitrogen (6) is conducted from an external nitrogen vessel (4) via a supply tube (7) from the nitrogen vessel (4) to the cryostat configuration (1, 1′) and brought into thermal contact with the radiation shield (10) by means of a thermal contact element (11) in the cryostat configuration (1, 1′). In this way, the consumption of liquid helium during transport can be greatly reduced and the possible transport time of a charged superconducting magnet configuration increased.

摘要翻译： 一种用于在运输期间冷却低温恒温器配置（1,1'）的方法，其中所述低温恒温器配置（1）包括在包含液氦（9）的氦气罐（8）中的超导磁体线圈（2） 至少一个辐射屏蔽（10），其中在静止操作中的低温恒温器配置（1,1'）内部的冷却通过冰箱完全完全没有液氮，其特征在于，在运输期间，关闭冰箱， 液氮（6）从外部氮气容器（4）通过供应管（7）从氮气容器（4）传导到低温恒温器配置（1,1'），并与辐射屏蔽（10）热接触 ）通过低温恒温器配置（1,1'）中的热接触元件（11）。 以这种方式，可以大大减少运输过程中液氦的消耗，并增加充电的超导磁体配置的可能的运输时间。

公开(公告)号：US07430872B2

公开(公告)日：2008-10-07

申请号：US11281442

申请日：2005-11-18

申请人： Marco Strobel

发明人： Marco Strobel

IPC分类号： F25B19/00 ,  F25B19/02 ,  F25D23/12

CPC分类号： H01F6/04 ,  F25B9/10 ,  F25B9/145 ,  F25B25/005 ,  F25D19/006 ,  F25D2500/02 ,  G01R33/3815

摘要： An NMR apparatus comprising a superconducting magnet coil system, in particular, an NMR spectrometer, with a cryostat which comprises an outer shell and a helium tank which contains the magnet coil system, and with an NMR probe head which is disposed in a room temperature bore of the cryostat and which contains a cooled RF resonator for receiving NMR signals from a sample to be examined and is cooled, together with the NMR probe head, by a cold head of a common, multi-stage, compressor-operated refrigerator, is characterized in that the cold head of the refrigerator is disposed in a neck tube, the upper end of which is connected to the outer shell of the cryostat and the lower end of which is connected to the helium tank in such a manner that the neck tube and the helium tank delimit a helium space, with at least one cooling circuit with thermally insulated transfer lines being provided between the helium space and the NMR probe head, wherein the cryogenic helium in the helium space is used as coolant for the cooling circuit. This produces an NMR apparatus which cools a plurality of elements at different temperature levels using only one single cryocooler to optimally utilize the cooling resources of the refrigerator.

摘要翻译： 一种NMR装置，包括超导磁体线圈系统，特别是NMR光谱仪，其具有低温恒温器，该低温恒温器包括外壳和包含磁体线圈系统的氦气罐，以及配置在室温膛内的NMR探针头 的低温恒温器，并且其包含用于从待检查的样品接收NMR信号的冷却的RF谐振器，并且与NMR探针头一起被公用的多级压缩机操作的冰箱的冷头冷却，其特征在于 因为冰箱的冷头设置在颈管中，颈管的上端连接到低温恒温器的外壳，其下端以氦气罐连接到颈管和 氦气罐限定氦空间，在氦空间和NMR探头之间至少有一个具有绝热传输线的冷却回路，其中氦气空间中的低温氦气是 用作冷却回路的冷却剂。 这产生了一种NMR装置，其使用仅一个单个低温冷却器来冷却在不同温度水平下的多个元件，以最佳地利用冰箱的冷却资源。

公开(公告)号：US07430871B2

公开(公告)日：2008-10-07

申请号：US11266360

申请日：2005-11-04

申请人： Marco Strobel

发明人： Marco Strobel

IPC分类号： F25B19/00 ,  B01D59/44 ,  H01J49/40 ,  H01F6/04

CPC分类号： F25B9/02 ,  F25B9/10 ,  F25B9/14 ,  F25B9/145 ,  F25B2309/1407 ,  F25B2309/1413 ,  F25D19/006 ,  G01R33/31 ,  H01F6/04

摘要： An NMR spectrometer comprising a magnet coil system disposed in the helium tank (8) of a cryostat and an NMR probe head (4) which is disposed in a room temperature bore of the cryostat and contains a cooled RF resonator (13) for receiving NMR signals from a sample to be examined, wherein the helium tank (8) and the NMR probe head (4) are cooled by a common, multi-stage, compressor-operated refrigerator, is characterized in that the common refrigerator comprises a cold head (6) and several heat exchangers (21, 24, 25, 28, 31, 33, 34) at different temperature levels, wherein the refrigerator is disposed at a spatial separation from the cryostat in a separate, evacuated and thermally insulated housing (5), and several cooling circuits (1a, 1b, 1c, 1d, 2a, 2b, 3a, 3b) having thermally insulated transfer lines (14a, 14b, 15) are provided between the housing (5) containing the heat exchangers (21, 24, 25, 28, 31, 33, 34) and the cryostat, and also between the housing (5) and the NMR probe head (4). The probe head and magnet cryostat of the inventive NMR spectrometer can thereby be cooled by a common refrigerator, wherein the cooling resources of the used refrigerator are optimally utilized.

摘要翻译： 一种NMR光谱仪，包括设置在低温恒温器的氦罐（8）中的磁体线圈系统和设置在低温恒温器的室温孔中的NMR探头（4），并且包含用于接收NMR的冷却的RF谐振器（13） 来自待检样品的信号，其中氦罐（8）和NMR探针头（4）由共同的多级压缩机操作的冰箱冷却，其特征在于，普通冰箱包括冷头 6）和多个不同温度水平的热交换器（21,24,25,28,31,33,34），其中所述冰箱设置在与所述低温恒温器在与分离的抽真空且隔热的壳体（5）中的空间分离处， ，并且具有隔热传输线（14a，14b，15）的几个冷却回路（1a，1b，1c，1d，2a，b，3a，3b）设置在壳体 5）包含热交换器（21,24,25,28,31,33,34）和低温恒温器，以及在 壳体（5）和NMR探针头（4）。 本发明的NMR光谱仪的探针头和磁体低温恒温器由此能够被普通的冰箱冷却，其中最佳地利用所用的冷藏库的冷却资源。

公开(公告)号：US08633692B2

公开(公告)日：2014-01-21

申请号：US13137185

申请日：2011-07-27

申请人： Marco Strobel ,  Holger Liebel

发明人： Marco Strobel ,  Holger Liebel

IPC分类号： G01V3/00

CPC分类号： G01R33/3815 ,  F25B9/145

摘要： A nuclear magnetic resonance (NMR) apparatus (10) comprises a superconducting main field magnet coil system (14) which generates a homogeneous magnetic field of at least 3T, and a gradient coil system (15) which generates a gradient strength of at least 10 mTm−1, with a slew rate of at least 100 Tm−1s−1, wherein the main field magnet coil system (14) is arranged in a cryostat (12) with liquid helium and a refrigerator (16) in the form of a pulse tube cooler or a Gifford-McMahon cooler, and wherein an evaporation line (17a, 27a, 37a) is provided for helium that might evaporate from the cryostat. In all states of operation of the NMR apparatus (10) without gradient switching, the refrigerator provides a cooling capacity which is at least 0.3 W above the overall power loss of the cryostat, the evaporation line terminates in a buffer container (19, 29, 39, 39′) disposed outside of the cryostat for collecting the evaporating helium, and a return line (17b, 27b, 37b) is provided for returning the evaporated helium that has been collected in the buffer container into the cryostat. For this reason, a considerable amount of evaporating helium is saved, thereby considerably extending the refill cycles of liquid helium, which greatly disturb and obstruct normal work cycles and are disadvantageous for operation, in particular, in hospitals.

摘要翻译： 核磁共振（NMR）装置（10）包括产生至少3T的均匀磁场的超导主磁场线圈系统（14）和产生至少10的梯度强度的梯度线圈系统（15） mTm-1，其转速为至少100Tm-1s-1，其中主场磁体线圈系统（14）布置在具有液氦的低温恒温器（12）中，并且以 脉冲管冷却器或Gifford-McMahon冷却器，并且其中提供用于可能从低温恒温器蒸发的氦气的蒸发管线（17a，27a，37a）。 在没有梯度切换的NMR装置（10）的所有操作状态下，冰箱提供比低温恒温器的总功率损失高至少0.3W的冷却能力，蒸发管线终止于缓冲容器（19,29， 39,39'）设置在低温恒温器的外部用于收集蒸发氦气，并且提供返回管线（17b，27b，37b），用于将已经收集在缓冲容器中的蒸发的氦返回到低温恒温器中。 因此，可以节省大量的蒸发氦气，从而显着地延长了液氦的再循环周期，这极大地干扰和阻碍正常的工作循环，并且对于医院尤其是在医院中的操作是不利的。

公开(公告)号：US20120025821A1

公开(公告)日：2012-02-02

申请号：US13137185

申请日：2011-07-27

申请人： Marco Strobel ,  Holger Liebel

发明人： Marco Strobel ,  Holger Liebel

IPC分类号： G01R33/46 ,  F25B9/00 ,  F17C7/04

CPC分类号： G01R33/3815 ,  F25B9/145

摘要： A nuclear magnetic resonance (NMR) apparatus (10) comprises a superconducting main field magnet coil system (14) which generates a homogeneous magnetic field of at least 3T, and a gradient coil system (15) which generates a gradient strength of at least 10 mTm−1, with a slew rate of at least 100 Tm−1s−1, wherein the main field magnet coil system (14) is arranged in a cryostat (12) with liquid helium and a refrigerator (16) in the form of a pulse tube cooler or a Gifford-McMahon cooler, and wherein an evaporation line (17a, 27a, 37a) is provided for helium that might evaporate from the cryostat. In all states of operation of the NMR apparatus (10) without gradient switching, the refrigerator provides a cooling capacity which is at least 0.3 W above the overall power loss of the cryostat, the evaporation line terminates in a buffer container (19, 29, 39, 39′) disposed outside of the cryostat for collecting the evaporating helium, and a return line (17b, 27b, 37b) is provided for returning the evaporated helium that has been collected in the buffer container into the cryostat. For this reason, a considerable amount of evaporating helium is saved, thereby considerably extending the refill cycles of liquid helium, which greatly disturb and obstruct normal work cycles and are disadvantageous for operation, in particular, in hospitals.

摘要翻译： 核磁共振（NMR）装置（10）包括产生至少3T的均匀磁场的超导主磁场线圈系统（14）和产生至少10的梯度强度的梯度线圈系统（15） mTm-1，其转速为至少100Tm-1s-1，其中主场磁体线圈系统（14）布置在具有液氦的低温恒温器（12）中，并且以 脉冲管冷却器或Gifford-McMahon冷却器，并且其中提供用于可能从低温恒温器蒸发的氦气的蒸发管线（17a，27a，37a）。 在没有梯度切换的NMR装置（10）的所有操作状态下，冰箱提供比低温恒温器的总功率损失高至少0.3W的冷却能力，蒸发管线终止于缓冲容器（19,29， 39,39'）设置在低温恒温器的外部用于收集蒸发氦气，并且提供返回管线（17b，27b，37b），用于将已经收集在缓冲容器中的蒸发的氦返回到低温恒温器中。 因此，可以节省大量的蒸发氦气，从而显着地延长了液氦的再循环周期，这极大地干扰和阻碍正常的工作循环，并且对于医院尤其是在医院中的操作是不利的。

公开(公告)号：US20100236260A1

公开(公告)日：2010-09-23

申请号：US11476713

申请日：2006-06-29

申请人： Gerhard Roth ,  Marco Strobel

发明人： Gerhard Roth ,  Marco Strobel

IPC分类号： F25B19/00

CPC分类号： H01F6/04

摘要： A cryostat configuration has a magnet coil system (2) disposed in a helium tank (1), and a horizontal room temperature bore (3) which provides access to a volume under investigation in the center of the magnet coil system (2). The helium tank (1) contains undercooled liquid helium at a temperature of less than 3.5 K, in particular of approximately 2 K, and the cryostat configuration has at least one vertical tower structure (4) on its upper side for filling in and evaporating helium. The tower structure (4) contains a container (5) with liquid helium of 4.2 K which is separated from the helium tank (1) by a thermal barrier (7), and the helium tank (1) contains an undercooling unit (9). This yields a compact cryostat configuration which achieves continuous, stable long-term operation with an undercooled high-field magnet coil.

摘要翻译： 低温恒温器配置具有设置在氦罐（1）中的磁体线圈系统（2）和水平室温孔（3），其提供对在线圈系统（2）的中心处被研究的容积的通路。 氦罐（1）在小于3.5K，特别是大约2K的温度下含有过冷的液氦，低温恒温器配置在其上侧具有至少一个垂直塔架结构（4），用于填充和蒸发氦 。 塔架结构（4）包含一个容器（5），液体氦气为4.2K，通过热障（7）与氦罐（1）分离，氦罐（1）含有一个过冷单元（9） 。 这产生紧凑的低温恒温器配置，其利用过冷的高场磁体线圈实现连续，稳定的长期操作。

公开(公告)号：US06804968B2

公开(公告)日：2004-10-19

申请号：US10440224

申请日：2003-05-19

申请人： Marco Strobel

发明人： Marco Strobel

IPC分类号： F25B1900

CPC分类号： F17C13/00 ,  F17C2221/017 ,  F17C2223/0161 ,  F17C2223/033 ,  F17C2270/0536 ,  F25B9/14 ,  F25B2400/17 ,  F25D19/006 ,  G01R33/3815

摘要： A cryostat configuration for keeping liquid helium, comprising an outer jacket (2) accommodating a helium container (5), a neck pipe (3) which is filled with gaseous helium during operation, and a refrigerator (1; 1b), wherein the outer jacket (2), the helium container (5) and the neck pipe (3) delimit an evacuated chamber (9) which surrounds the helium container (5); and wherein the refrigerator (1; 1b) has a cooling finger (4) which has a condensation body (15; 15b) in the region of the lower end of the neck pipe (3), is characterized in that the condensation body (15; 15b) is partially surrounded by a condensation chamber (16; 16b) which has a first lower opening (17) to permit draining of liquid helium, and a second opening which communicates with a lower end of a gas supply pipe (18), wherein the upper end of the gas supply pipe (18) terminates in the region of the upper end of the neck pipe (3). This improves the thermal properties of the cryostat configuration. In particular, the convection flow inside the neck pipe (3) is controlled.

摘要翻译： 一种用于保持液氦的低温恒温器结构，包括容纳氦容器（5）的外护套（2），在操作期间填充有气态氦的颈管（3），以及冷藏库（1; 1b） 夹套（2），氦容器（5）和颈管（3）限定围绕氦容器（5）的真空室（9）; 并且其中所述冰箱（1; 1b）具有在所述颈管（3）的下端区域中具有冷凝体（15; 15b）的冷却指（4），其特征在于，所述冷凝体 ; 15b）被冷凝室（16; 16b）部分地包围，所述冷凝室具有第一下开口（17）以允许排出液氦，以及与气体供给管（18）的下端连通的第二开口， 其中，所述气体供给管（18）的上端终止于所述颈管（3）的上端的区域。 这改善了低温恒温器配置的热性能。 特别地，颈管（3）内的对流被控制。

公开(公告)号：US20060130493A1

公开(公告)日：2006-06-22

申请号：US11281442

申请日：2005-11-18

申请人： Marco Strobel

发明人： Marco Strobel

IPC分类号： F25B9/00 ,  F25B19/00 ,  F25B19/02 ,  F25D23/12

CPC分类号： H01F6/04 ,  F25B9/10 ,  F25B9/145 ,  F25B25/005 ,  F25D19/006 ,  F25D2500/02 ,  G01R33/3815

摘要： An NMR apparatus comprising a superconducting magnet coil system, in particular, an NMR spectrometer, with a cryostat which comprises an outer shell and a helium tank which contains the magnet coil system, and with an NMR probe head which is disposed in a room temperature bore of the cryostat and which contains a cooled RF resonator for receiving NMR signals from a sample to be examined and is cooled, together with the NMR probe head, by a cold head of a common, multi-stage, compressor-operated refrigerator, is characterized in that the cold head of the refrigerator is disposed in a neck tube, the upper end of which is connected to the outer shell of the cryostat and the lower end of which is connected to the helium tank in such a manner that the neck tube and the helium tank delimit a helium space, with at least one cooling circuit with thermally insulated transfer lines being provided between the helium space and the NMR probe head, wherein the cryogenic helium in the helium space is used as coolant for the cooling circuit. This produces an NMR apparatus which cools a plurality of elements at different temperature levels using only one single cryocooler to optimally utilize the cooling resources of the refrigerator.

摘要翻译： 一种NMR装置，包括超导磁体线圈系统，特别是NMR光谱仪，其具有低温恒温器，该低温恒温器包括外壳和包含磁体线圈系统的氦气罐，以及配置在室温膛内的NMR探针头 的低温恒温器，并且其包含用于从待检查的样品接收NMR信号的冷却的RF谐振器，并且与NMR探针头一起被公用的多级压缩机操作的冰箱的冷头冷却，其特征在于 因为冰箱的冷头设置在颈管中，颈管的上端连接到低温恒温器的外壳，其下端以氦气罐连接到颈管和 氦气罐限定氦空间，在氦空间和NMR探头之间至少有一个具有绝热传输线的冷却回路，其中氦气空间中的低温氦气是 用作冷却回路的冷却剂。 这产生了一种NMR装置，其使用仅一个单个低温冷却器来冷却在不同温度水平下的多个元件，以最佳地利用冰箱的冷却资源。

公开(公告)号：US08448455B2

公开(公告)日：2013-05-28

申请号：US12458121

申请日：2009-07-01

申请人： Marco Strobel

发明人： Marco Strobel

IPC分类号： F17C3/08 ,  F25B19/00

CPC分类号： F25D19/006 ,  F25D3/10 ,  F25D16/00 ,  H01F6/04

摘要： A method for cooling a cryostat configuration (1, 1′) during transport, wherein the cryostat configuration (1) comprises a superconducting magnet coil (2) in a helium tank (8) containing liquid helium (9), which is surrounded by at least one radiation shield (10), wherein the cooling inside the cryostat configuration (1, 1′) in stationary operation is performed entirely without liquid nitrogen by means of a refrigerator, characterized in that during transport, the refrigerator is switched off and instead, liquid nitrogen (6) is conducted from an external nitrogen vessel (4) via a supply tube (7) from the nitrogen vessel (4) to the cryostat configuration (1, 1′) and brought into thermal contact with the radiation shield (10) by means of a thermal contact element (11) in the cryostat configuration (1, 1′). In this way, the consumption of liquid helium during transport can be greatly reduced and the possible transport time of a charged superconducting magnet configuration increased.

摘要翻译： 一种用于在运输期间冷却低温恒温器配置（1,1'）的方法，其中所述低温恒温器配置（1）包括在包含液氦（9）的氦罐（8）中的超导磁体线圈（2） 至少一个辐射屏蔽（10），其中在静止操作中的低温恒温器配置（1,1'）内部的冷却通过冰箱完全完全没有液氮，其特征在于，在运输期间，关闭冰箱， 液氮（6）从外部氮气容器（4）通过供应管（7）从氮气容器（4）传导到低温恒温器配置（1,1'），并与辐射屏蔽（10）热接触 ）通过低温恒温器配置（1,1'）中的热接触元件（11）。 以这种方式，可以大大减少运输过程中液氦的消耗，并增加充电的超导磁体配置的可能的运输时间。

公开(公告)号：US20110271694A1

公开(公告)日：2011-11-10

申请号：US13067041

申请日：2011-05-04

申请人： Marco Strobel ,  Gerhard Roth

发明人： Marco Strobel ,  Gerhard Roth

IPC分类号： F25B19/00

CPC分类号： H01F6/04 ,  F25D19/00

摘要： A cryostat configuration (10), with at least one cryostat (11), which has at least one first chamber (1) with supercooled liquid helium having a temperature of less than 4 K and at least one further chamber (2), which contains liquid helium having a temperature of approximately 4.2 K, a Joule-Thomson valve (3) being disposed in the first chamber, wherein the first chamber is separated from the further chamber by a thermally insulating barrier (4), wherein helium from the first or the further chamber expands through the Joule-Thomson valve into a pump-off pipe (13), which is in thermal contact with the helium of the first chamber and supercools the latter, and wherein the pump-off pipe is directly or indirectly in thermal contact with the further chamber during its further progression and is then connected to the inlet of a pump (14), is characterized in that the outlet of the pump and/or an outlet for evaporating helium of at least one of the cryostats is fluidically connected to the further chamber through a cryogen pipe (15), and that the cryogen pipe has a branch-off device (16), which returns a partial current of the helium located in the cryogen pipe into the further chamber. In this way, the helium consumption and therefore the operating costs are reduced while the pressure in the first chamber remains constant.

摘要翻译： 具有至少一个低温恒温器（11）的低温恒温器配置（10），其具有至少一个具有小于4K的温度的过冷液体氦的至少一个第一室（1）和至少一个另外的室（2），其包含 具有约4.2K的温度的液氦，焦耳汤姆斯阀（3）设置在第一室中，其中第一室通过隔热屏障（4）与另外的室隔开，其中氦从第一或 另外的腔室通过焦耳汤姆斯阀门膨胀成与第一腔室的氦热接触并将其冷却的泵送管道（13），并且其中排出管道直接或间接地处于热 在其进一步进行期间与另外的室接触，然后连接到泵（14）的入口，其特征在于，用于蒸发至少一个低温恒温器的氦的出口和/或用于蒸发氦的出口流体连接 到f 另外，通过冷冻管（15）进入室，冷冻管具有分支装置（16），其将位于冷冻管中的氦的部分电流返回到另外的室中。 以这种方式，氦消耗和因此的操作成本降低，而第一室中的压力保持恒定。