CRYOGENIC CONTAINER WITH BUILT-IN REFRIGERATOR
    52.
    发明申请
    CRYOGENIC CONTAINER WITH BUILT-IN REFRIGERATOR 审中-公开
    带内置冰箱的低温容器

    公开(公告)号:US20090188260A1

    公开(公告)日:2009-07-30

    申请号:US12357476

    申请日:2009-01-22

    IPC分类号: F25B21/02 F25B19/00

    摘要: A cryogenic container with a built-in refrigerator according to the present invention comprises the refrigerator having a first heat absorbing part and a first heat dissipating part, a vacuum vessel for containing and thermally insulating an object to be cooled while holding the object at a cryogenic temperature through the first heat absorbing part of the refrigerator, and a pre-cooling unit having a second heat absorbing part and a second heat dissipating part for cooling the first heat dissipating part, wherein the first heat dissipating part and the second heat absorbing part are arranged inside the vacuum vessel, and a part of a heat dissipating unit including the second heat dissipating part is exposed outside the vacuum vessel.According to the present invention, in the cryogenic container with the built-in refrigerator capable of cooling the object to be cooled to the cryogenic temperature, the refrigerator efficiency can be improved by cooling a heat dissipating surface of the first heat dissipating part of the refrigerator to a level lower than the room temperature.

    摘要翻译: 根据本发明的具有内置冰箱的低温容器包括具有第一吸热部分和第一散热部分的冷藏库,用于将待冷却的物体保持在低温下的待冷却物体的真空容器 温度通过冷藏库的第一吸热部,以及具有第二吸热部的预冷却部和用于冷却第一散热部的第二散热部,其中,第一散热部和第二吸热部为 布置在真空容器内部,并且包括第二散热部分的散热单元的一部分暴露在真空容器的外部。 根据本发明,在具有能够将被冷却物体冷却至低温的内置冰箱的低温容器中,通过冷却冷藏库的第一散热部的散热面,能够提高冰箱的效率 达到低于室温的水平。

    Measuring module for rapid measurement of electrical, electronic and mechanical components at cryogenic temperatures and measuring device having such a module
    53.
    发明申请
    Measuring module for rapid measurement of electrical, electronic and mechanical components at cryogenic temperatures and measuring device having such a module 有权
    用于在低温下快速测量电气,电子和机械部件的测量模块以及具有这种模块的测量装置

    公开(公告)号:US20090146676A1

    公开(公告)日:2009-06-11

    申请号:US12292970

    申请日:2008-12-02

    IPC分类号: G01R31/02

    摘要: Measuring module for the measurement of an object (6), having a measuring chamber (4), with a contact element (5a, 5b), wherein the object to be measured (6) is thermally connected to a first contact surface (9a) of the contact element (5a, 5b), and having a cold head (1b, 2b, 2c) that can be thermally connected to a second contact surface (9b) of the contact element (5a, 5b), wherein the contact element (5a, 5b) consists of material with high thermal conductivity, characterized in that the cryo-refrigerator (1a, 2a) together with the cold head is housed in a refrigerating chamber (3) that is physically separated from the measuring chamber (4) and can be evacuated separately from the latter, and the contact element (5a, 5b) is thermally insulated from the outside wall of the measuring module, is part of a separating wall between the measuring chamber (4) and the refrigerating chamber (3), and makes a local thermal connection between the measuring chamber (4) and the refrigerating chamber (3), and with a contacting mechanism to vary heat flow in the hermetically sealed condition of the measuring module. With such a measuring module, cooling times and heating times of the object to be measured can be greatly reduced.

    摘要翻译: 用于测量具有接触元件(5a,5b)的测量室(4)的物体(6)的测量模块,其中被测量物体(6)热连接到第一接触表面(9a) 的接触元件(5a,5b),并且具有能够与所述接触元件(5a,5b)的第二接触表面(9b)热连接的冷头(1b,2b,2c)),其中所述接触元件 5a,5b)由具有高导热性的材料组成,其特征在于,冷冻冰箱(1a,2a)与冷头一起容纳在与测量室(4)物理分离的冷藏室(3)中, 可以与后者分离地抽出,并且接触元件(5a,5b)与测量模块的外壁热绝缘,是测量室(4)和冷藏室(3)之间的分隔壁的一部分, 并且在测量室(4)和冷藏室之间进行局部热连接 (3),并且具有接触机构以改变测量模块的气密密封状态下的热流。 通过这样的测量模块,可以大大降低被测量物体的冷却时间和加热时间。

    Quench seal
    54.
    发明授权
    Quench seal 有权
    淬火密封

    公开(公告)号:US07503181B2

    公开(公告)日:2009-03-17

    申请号:US11291990

    申请日:2005-12-02

    IPC分类号: F25B19/00

    摘要: A cryostat configuration comprising an outer shell and a cryocontainer (2) for cryogenic fluid installed therein, wherein the cryocontainer (2) is connected to the outer shell via at least two suspension tubes (16), and with a neck tube (1) whose upper warm end is connected to the outer shell and whose lower cold end is connected to the cryocontainer (2) and into which a cold head (3) of a multi-stage cryocooler is installed, wherein the outer shell, the cryocontainer (2), the suspension tubes (16) and the neck tube (1) delimit an evacuated space, and wherein the cryocontainer (2) is moreover surrounded by at least one radiation shield which is connected to the suspension tubes (16) and optionally to the neck tube (1) of the cryocontainer (2) in a thermally conducting fashion, is characterized by a seal which can be manually and/or automatically actuated to separate the cold end of the neck tube (1) from the cryocontainer (2) in such a manner that fluid flow between the cryocontainer (2) and the neck tube (1) is minimized or completely interrupted. A cryostat configuration of this type ensures safe installation and removal of a cold head (3) into and from a neck tube (1) of a helium container (2).

    摘要翻译: 一种低温恒温器配置,其包括外壳和用于安装在其中的低温流体的低温容器(2),其中所述低温容器(2)经由至少两个悬挂管(16)和颈管(1)连接到外壳,颈管 上部暖端连接到外壳,其下冷端连接到低温容器(2),并安装有多级低温冷却器的冷头(3),其中外壳,低温容器(2) 悬挂管(16)和颈管(1)限定了抽空空间,并且其中低温容器(2)还包括至少一个与悬挂管(16)相连并且可选地连接到颈部的辐射屏蔽 低温容器(2)的管(1)以导热方式,其特征在于可以手动和/或自动致动的密封件,从而将颈管(1)的冷端与低温容器(2)分离 流体在低温容器之间流动的方式 2)和颈管(1)最小化或完全中断。 这种类型的低温恒温器配置确保将冷头(3)安装到氦容器(2)的颈管(1)中和从其中取出。

    FREEZING RECEPTACLE AND APPARATUS
    56.
    发明申请
    FREEZING RECEPTACLE AND APPARATUS 审中-公开
    冷冻接收器和设备

    公开(公告)号:US20080223066A1

    公开(公告)日:2008-09-18

    申请号:US12046746

    申请日:2008-03-12

    摘要: Various embodiments for a freezing receptacle and apparatus are described. The freezing receptacle includes a freezing box with a thermal agent that serves to freeze or cool an object or maintain the temperature of the object. The freezing receptacle includes at least one side wall having a sloped inner face that slopes inwards to ensure that the thermal agent remains in thermal contact with the object continuously as the thermal agent changes size and at least one side wall with a vertical face or an outer face that slopes outwards.

    摘要翻译: 描述了用于冷藏插座和装置的各种实施例。 冷冻容器包括具有用于冷冻或冷却物体或保持物体的温度的热剂的冷冻箱。 冷冻容器包括具有向内倾斜的倾斜内表面的至少一个侧壁,以确保热剂随着热剂改变尺寸而连续地保持与物体热接触,并且具有垂直面或外部的至少一个侧壁 面向斜坡向外。

    Apparatus and method for controlling a cryocooler by adjusting cooler gas flow oscillating frequency
    57.
    发明授权
    Apparatus and method for controlling a cryocooler by adjusting cooler gas flow oscillating frequency 有权
    通过调节冷却器气流振荡频率来控制低温冷却器的装置和方法

    公开(公告)号:US07412835B2

    公开(公告)日:2008-08-19

    申请号:US11167850

    申请日:2005-06-27

    IPC分类号: F25D9/00 F25B1/00 F25B49/00

    摘要: Systems and methods are provided for a variable cooling capacity cryocooler for a superconducting magnetic resonance imaging device having a liquid cryogen pressure vessel to provide cryogenic temperatures to a magnet assembly, a vacuum vessel surrounding the pressure vessel and a radiation shield spaced from the cryogen pressure vessel, and a pressure sensor positioned inside the cryogen pressure vessel pressure boundary for sensing pressure variations. A controller for varying the heat removal rate of the cryocooler based on the pressure variations in the cryogen pressure vessel and where the cooling capacity of the cryocooler is adjusted by modifying the speed of the electric power drive (DC or AC motors) or by changing the mechanical transmission ratio between the constant speed electric power drive and the cryocooler displacer/piston to adjust the cooler oscillating frequency of the gas flow. The invention can be adapted to magnets or non magnets systems using Stirling, Gifford-McMahon (“GM”) and Pulse Tube (“PT”) cooler systems. The system will extend component end of life and provide a controllable constant pressure improving image quality for superconducting MRI magnets.

    摘要翻译: 为具有液体冷冻剂压力容器的超导磁共振成像装置的可变冷却能力低温冷却器提供系统和方法,以向磁体组件提供低温温度,围绕压力容器的真空容器和与冷冻剂压力容器间隔开的辐射屏蔽 以及位于冷冻剂压力容器压力边界内的压力传感器,用于感测压力变化。 一种控制器,用于根据冷冻剂压力容器的压力变化改变低温冷却器的除热速率,并且通过改变电力驱动(DC或AC电动机)的速度来调节低温冷却器的冷却能力,或者通过改变 恒速电力驱动与低温冷却器置换器/活塞之间的机械传动比调节气体流的冷却器振荡频率。 本发明可以适用于使用斯特林,吉福德 - 麦克马洪(“GM”)和脉冲管(“PT”)冷却器系统的磁体或非磁体系统。 该系统将延长部件寿命,为超导MRI磁体提供可控的恒定压力,提高图像质量。

    Pulse tube refrigerator sleeve
    59.
    发明授权
    Pulse tube refrigerator sleeve 失效
    脉管冷藏套

    公开(公告)号:US07350363B2

    公开(公告)日:2008-04-01

    申请号:US10492941

    申请日:2002-10-21

    IPC分类号: F25B9/00 F25B19/00

    摘要: The present invention relates to pulse tube refrigerators for recondensing cryogenic liquids. In particular, the present invention relates to the same for magnetic resonance imaging systems. In many cryogenic applications components, e.g. superconducting coils for magnetic resonance imaging (MRI), superconducting transformers, generators, electronics, are cooled by keeping them in contact with a volume of liquified gases (e.g. Helium, Neon, Nitrogen, Argon, Methane . . . ). Any dissipation in the components or heat getting into the system causes the volume to part boil off. To account for the losses, replenishment is required. This service operation is considered to be problematic by many users and great efforts have been made over the years to introduce refrigerators that recondense any lost liquid right back into the bath. The present invention addresses the problems arising from convection which occurs within a pulse tube refrigerator. The invention provides. in a first aspect, a PTR recondenser wherein, the individual tubes of PTR are insulated by a split sleeve around the whole assembly. Preferably, the sleeve is split into two parts. This configuration has been shown to reduce convection and problems associated therewith.

    摘要翻译: 本发明涉及用于再冷凝低温液体的脉冲管式冰箱。 特别地,本发明涉及磁共振成像系统。 在许多低温应用中,例如, 用于磁共振成像(MRI),超导变压器,发电机,电子器件的超导线圈通过使其与一定体积的液化气体(例如氦,氖,氮,氩,甲烷等)接触来冷却。 组件中的任何耗散或进入系统的热会导致体积部分沸腾。 为了解释损失,需要补货。 这种服务操作被许多用户认为是有问题的,多年来一直在努力引入将任何丢失的液体重新注入浴缸的冰箱。 本发明解决了在脉冲管式冰箱内产生的对流问题。 本发明提供。 在第一方面,一种PTR再冷凝器,其中,PTR的各个管由围绕整个组件的开口套管绝缘。 优选地,套筒被分成两部分。 已经示出了这种配置以减少对流和与之相关的问题。

    Insulated container which can be evacuated, for an application to be cooled
    60.
    发明授权
    Insulated container which can be evacuated, for an application to be cooled 有权
    可以抽真空的绝缘容器,用于冷却

    公开(公告)号:US07331192B2

    公开(公告)日:2008-02-19

    申请号:US11029394

    申请日:2005-01-06

    IPC分类号: F25D3/08

    摘要: The invention relates to an insulated container (11) which can be evacuated and has an application (12) to be cooled, in which insulated container (11) a vacuum can be built up by means of a vacuum pump (22). In order to allow the vacuum pump (22) to be switched off during normal operation, a getter material (26) is arranged in the insulated container and binds gas components which penetrate into the insulated container as a result of unavoidable leakages. The invention provides for the getter material to be accommodated in maintenance areas (20), which can be disconnected by means of valves (21) from the working area (18) which contains the application (12). This allows the getter materials (26) in each maintenance area to be replaced or regenerated, while the operation of the application (12) to be cooled can be maintained owing to the partitioning of the working area (18) from the maintenance area (20).

    摘要翻译: 本发明涉及一种绝热容器(11),其可以被抽真空并且具有待冷却的应用(12),其中绝热容器(11)可以通过真空泵(22)构建成真空。 为了在正常操作期间允许真空泵(22)关闭,吸气材料(26)布置在绝热容器中,并且由于不可避免的泄漏而结合穿透绝缘容器的气体成分。 本发明提供吸气剂材料容纳在维护区域(20)中,维护区域(20)可以通过阀(21)从包含应用(12)的工作区域(18)断开。 这允许在每个维护区域中的吸气剂材料(26)被更换或再生,同时由于工作区域(18)与维护区域(20)的分隔而可以维持待冷却的应用(12)的操作 )。