公开(公告)号：US20220404445A1

公开(公告)日：2022-12-22

申请号：US17830669

申请日：2022-06-02

Applicant: Bruker BioSpin GmbH

Inventor： Marco STROBEL

IPC: G01R33/38 ,  G01R33/3815

Abstract: A method for autonomously cooling down a cryogen-free superconductive magnetic coil system includes: (a1) measuring the current temperature Tactual at the magnet and comparing it to a temperature target value T1target; (a2) if Tactual>T1target, actuating a vacuum pump and opening a barrier valve in a vacuum conduit that leads from the vacuum pump into a vacuum vessel containing the magnet; (b1) measuring the current pressure Pactual in the vacuum vessel and comparing it to a pressure target value P1target; (b2) if Pactual

公开(公告)号：US20190212049A1

公开(公告)日：2019-07-11

申请号：US16359121

申请日：2019-03-20

Applicant: Bruker BioSpin GmbH

Inventor： Marco STROBEL ,  Patrick WIKUS

IPC: F25D19/00 ,  F17C3/08 ,  H01F6/04 ,  F17C13/00

CPC classification number: F25D19/006 ,  F17C3/085 ,  F17C13/007 ,  F17C2203/0629 ,  F17C2223/0161 ,  F17C2270/02 ,  F17C2270/0527 ,  F17C2270/0536 ,  F25B49/005 ,  F25B2500/06 ,  G01R33/3804 ,  G01R33/3815 ,  H01F6/04

Abstract: A cryostat arrangement (1′) having a vacuum container (2) and an object (4) to be cooled, which is arranged inside the vacuum container. A neck tube (8) leads to the object, and a cooling arm (10) of a cold head (11), around which a closed cavity (9) is formed, is arranged in the neck tube, which is sealed off fluid-tight in relation to the object and is filled with cryogenic fluid in normal operation. A thermal coupling element (15) couples the cryogenic fluid in the cavity to the object. A pump device (14), to which the cavity is connected via a valve (13) and with which the cavity is pumped out if the cold head fails. A monitoring unit (17) monitors the cooling function of the cold head, and activates the pump device to pump out the cavity if the cooling function of the cold head drops.

公开(公告)号：US20190101244A1

公开(公告)日：2019-04-04

申请号：US16207404

申请日：2018-12-03

Applicant: Bruker BioSpin GmbH

Inventor： Marco STROBEL

IPC: F17C3/08 ,  G01R33/38 ,  F25D19/00 ,  H01F6/04 ,  F17C13/00 ,  F25B9/10

Abstract: A method is provided for precooling a cryostat having a hollow cold head turret into which a neck tube protrudes and connects an object to be cooled to the exterior of the cryostat, wherein a cold head having a cold head stage for cooling a cryogenic working medium may be introduced into the neck tube. During a condensation operation the cryogenic working medium flows through a heat pipe into an evaporator chamber which is thermally conductively connected to the object to be cooled. During a precooling phase a precisely fitting, thermally conductive short circuit block is inserted through the neck tube into the heat pipe to provide thermal conduction between the object to be cooled and a cooling device. The short circuit block is removed from the heat pipe after the target temperature is reached, and heat is subsequently transmitted through the heat pipe during a condensation operation.

公开(公告)号：US20170284725A1

公开(公告)日：2017-10-05

申请号：US15619044

申请日：2017-06-09

Applicant: Bruker BioSpin GmbH

Inventor： Patrick WIKUS ,  Marco STROBEL ,  Gerhard ROTH

IPC: F25D19/00 ,  G01R33/38 ,  F25B9/02

CPC classification number: F25D19/00 ,  F25B9/02 ,  G01R33/3804 ,  H01F6/04

Abstract: A cryostat for subcooled (

公开(公告)号：US20170051874A1

公开(公告)日：2017-02-23

申请号：US15225094

申请日：2016-08-01

Applicant: Bruker BioSpin GmbH

Inventor： Marco STROBEL

IPC: F17C3/08

CPC classification number: F17C3/085 ,  F17C3/08 ,  F17C13/007 ,  F25B9/10 ,  F25B9/14 ,  F25B2400/17 ,  F25D19/006 ,  G01R33/3804 ,  H01F6/04

Abstract: A method is provided for precooling a cryostat having a hollow cold head turret into which a neck tube protrudes and connects an object to be cooled to the exterior of the cryostat, wherein a cold head having a cold head stage for cooling a cryogenic working medium may be introduced into the neck tube. During a condensation operation the cryogenic working medium flows through a heat pipe into an evaporator chamber which is thermally conductively connected to the object to be cooled. During a precooling phase a precisely fitting, thermally conductive short circuit block is inserted through the neck tube into the heat pipe to provide thermal conduction between the object to be cooled and a cooling device The short circuit block is removed from the heat pipe after the target temperature is reached, and heat is subsequently transmitted through the heat pipe during a condensation operation.

Abstract translation: 提供了一种用于对具有中空冷头转塔的低温恒温器进行预冷却的方法，其中颈管突出并将待冷却的物体连接到低温恒温器的外部，其中具有用于冷却低温工作介质的冷头台的冷头可以 被引入颈管。 在冷凝操作期间，低温工作介质通过热管流入蒸发室，该蒸发器室与要冷却的物体导热连接。 在预冷阶段期间，精确配合的导热短路块通过颈管插入热管中，以在待冷却物体与冷却装置之间提供热传导。在目标之后，从热管中除去短路块 达到温度，随后在冷凝操作期间热量传递通过热管。