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1. 发明申请

US20220275999A1 REFRIGERATION AND/OR LIQUEFACTION METHOD, DEVICE AND SYSTEM 有权
公开(公告)号：US20220275999A1
公开(公告)日：2022-09-01
申请号：US17632978
申请日：2020-06-23
申请人： L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
发明人： Fabien DURAND , Damien GUILLET , Remi NICOLAS , Cecile GONDRAND , Jean-Marc BERNHARDT
IPC分类号： F25J1/00 , F25B1/053 , F25B1/10 , F25B11/04 , F25B49/02 , F25J1/02
摘要： Disclosed is a refrigeration and/or liquefaction method using a system that includes a low-temperature refrigeration device comprising a working circuit which forms a loop and contains a working fluid, the working circuit forming a cycle comprising, connected in series: a compression mechanism, a cooling mechanism, an expansion mechanism and a heating mechanism the refrigeration device further comprising a cooling exchanger for extracting heat from the useful fluid stream by exchanging heat with the working fluid flowing in the working circuit, the system comprising a pipe through which the useful fluid stream flows in the cooling exchanger, the method comprising a cooling step in which the refrigeration device is in a first operating mode for cooling the cooling exchanger while a useful fluid stream flows in the cooling exchanger, the method comprising, after said cooling step, a step of cleaning impurities that have solidified in the cooling exchanger, characterized in that during the cleaning step, the refrigeration device is in a second operating mode in which the working gas flows in the working circuit but in which the cooling exchanger cools less intensely than in the first operating mode.

2. 发明申请

US20220074397A1 PUMPING DEVICE, PLANT AND METHOD FOR SUPPLYING LIQUID HYDROGEN 有权
公开(公告)号：US20220074397A1
公开(公告)日：2022-03-10
申请号：US17415685
申请日：2019-12-03
申请人： L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
发明人： Simon CRISPEL , Anh Thao THIEU , Gaetan COLEIRO , Fabien DURAND
IPC分类号： F04B23/04 , F04B15/08 , F04B41/06 , F04B53/08 , F04B53/14 , F04B53/16 , F04B25/00
摘要： Device for pumping liquid hydrogen including, arranged in series between an inlet for fluid to be compressed and an outlet for compressed fluid, a first compression member with a piston forming a first compression stage and a second compression member with a piston forming a second compression stage. The first compression member compresses the liquid hydrogen to a supercritical state. The second compression member compresses the supercritical hydrogen from the first compression member to an increased pressure, in particular, between 200 and 1000 bar.

3. 发明申请

US20220333828A1 REFRIGERATION DEVICE AND FACILITY 有权
公开(公告)号：US20220333828A1
公开(公告)日：2022-10-20
申请号：US17633095
申请日：2020-07-08
申请人： L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
发明人： Fabien DURAND , Guillaume DELAUTRE
IPC分类号： F25B1/053 , F25B1/10 , F25B9/06 , F25B11/04 , F25B31/02
摘要： Low-temperature refrigeration device arranged in a frame and comprising a working circuit forming a loop and containing a working fluid, the working circuit forming a cycle comprising in series: a compression mechanism, a cooling mechanism, an expansion mechanism and a heating mechanism, the device comprising a refrigeration heat exchanger intended to extract heat from at least one member by exchanging heat with the working fluid, the mechanisms for cooling and reheating the working fluid comprising a common heat exchanger in which the working fluid transits in counter-flow in two separate transit portions of the working circuit, the compression mechanism comprising at least two compressors and at least one motor for driving the compressors, the working fluid expansion mechanism comprising at least one rotary turbine, the device comprising at least one drive motor comprising a drive shaft, one end of which drives a compressor and the other end of which is coupled to a turbine, the motor being attached to the frame at at least one fixed point, the common heat exchanger being attached to the frame at at least one fixed point, the two counter-flow transit portions of the common heat exchanger being orientated in a longitudinal direction of the frame, the drive shaft of the drive motor being orientated in a direction parallel or substantially parallel to the longitudinal direction and the turbine and the compressor being arranged relatively longitudinally such that the turbine is located longitudinally on the side corresponding to the relatively cold end of the common heat exchanger when the device is being operated and the compressor is located longitudinally on the side corresponding to the relatively hot end of the common heat exchanger when the device is being operated.

4. 发明申请

US20220263379A1 ELECTRIC MACHINE AND MANUFACTURING METHOD 有权
公开(公告)号：US20220263379A1
公开(公告)日：2022-08-18
申请号：US17629312
申请日：2020-06-23
申请人： L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
发明人： Fabien DURAND , Loic BRUNET MANQUAT , Guillaume DELAUTRE
IPC分类号： H02K5/20 , H02K9/193
摘要： Electric machine, in particular an electric motor for driving at least one compressor or circulator, comprising a stator and a rotor that are disposed in a casing, the machine comprising a cooling device disposed around the stator and comprising a circulation circuit for a cooling fluid, characterized in that the cooling device comprises a circulation pipe for the cooling fluid, comprising a portion embedded in a mass of material with high thermal conductivity such as metal or a metal alloy.

5. 发明申请

US20190257475A1 FACILITY, METHOD FOR STORING AND LIQUEFYING A LIQUEFIED GAS AND ASSOCIATED TRANSPORT VEHICLE 审中-公开
公开(公告)号：US20190257475A1
公开(公告)日：2019-08-22
申请号：US16330975
申请日：2017-07-19
申请人： L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
发明人： Jean-Marc BERNHARDT , Fabien DURAND , Cecile GONDRAND , Veronique GRABIE
IPC分类号： F17C5/04
摘要： The invention primarily concerns a facility for storing and cooling a liquefied gas, for example a liquefied natural gas, the facility comprising at least one tank configured to contain the liquefied gas, a closed cooling circuit configured to be supplied with liquefied gas in the liquid state coming from the tank, at least one injection member configured for reinjecting cooled liquefied gas into the tank, the facility being characterized in that it comprises at least one connection line configured to recover a cooled gas from at least one remote container that is separate and independent from the facility.

6. 发明申请

US20150345834A1 REFRIGERATION AND/OR LIQUEFACTION DEVICE, AND CORRESPONDING METHOD 审中-公开
标题翻译：制冷和/或液化装置，以及相应的方法
公开(公告)号：US20150345834A1
公开(公告)日：2015-12-03
申请号：US14759117
申请日：2013-11-08
申请人： L'Air Liquide, Societe Anonyme pour L'Etude et L'Exploitation des Procedes Georges Claude
发明人： Pierre BARJHOUX , Fabien DURAND , Vincent HELOIN , Jean-Marc BERNHARDT , Gilles FLAVIEN
IPC分类号： F25B9/14 , F25B9/10
CPC分类号： F25B9/14 , F25B9/002 , F25B9/10 , F25J1/0065 , F25J1/0268 , F25J2210/42 , F25J2250/02 , F25J2270/904 , F25J2270/912
摘要： Refrigeration device comprising a working circuit in a loop for the working gas and comprising, in series: a compression station, a cold box, a system for the exchange of heat between the cooled working gas and a point of use, a system for the additional pre-cooling of the working gas leaving the compression station comprising an auxiliary cryogenic fluid volume, the cold box comprising a first cooling stage for the working gas comprising a first and a second heat exchanger, these being connected both in series and in parallel to the working circuit at the outlet of the compression station, the first cooling stage also comprising a third heat exchanger selectively exchanging heat with the auxiliary fluid, characterized in that the third heat exchanger is connected both in series and in parallel to the first and to the second heat exchangers, the working circuit comprising a recuperation pipe fitted with at least one valve and which connects the outlet of the third heat exchanger to the second heat exchanger.
摘要翻译：制冷装置包括用于工作气体的回路中的工作回路，包括：压缩站，冷箱，用于在冷却的工作气体和使用点之间交换热量的系统，用于附加的系统离开压缩站的工作气体预冷却包括辅助低温流体体积，该冷箱包括用于工作气体的第一冷却级，其包括第一和第二热交换器，它们串联并与在压缩站的出口处的工作回路，第一冷却段还包括选择性地与辅助流体进行热交换的第三热交换器，其特征在于，所述第三热交换器串联连接，并且平行于第一和第二热交换器，所述工作回路包括装配有至少一个阀并将所述第三热交换器的出口连接到所述第二热交换器的回收管第二换热器。

7. 发明申请

US20150316315A1 REFRIGERATION AND/OR LIQUEFACTION DEVICE, AND ASSOCIATED METHOD 审中-公开
标题翻译：制冷和/或液化装置及相关方法
公开(公告)号：US20150316315A1
公开(公告)日：2015-11-05
申请号：US14651833
申请日：2013-11-08
申请人： L'AIR LIQUIDE,SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE
发明人： Jean-Marc BERNHARDT , Fabien DURAND , Vincent HELOIN , Pierre BARJHOUX , Gilles FLAVIEN
IPC分类号： F25J1/00
CPC分类号： F25J1/0007 , F25B9/002 , F25B9/10 , F25B40/02 , F25B2339/024 , F25B2339/046 , F25J1/0065 , F25J1/0268 , F25J2210/42 , F25J2250/02 , F25J2270/904 , F25J2270/912
摘要： A device for refrigerating and/or liquefying a working gas comprising helium, the device comprising a looped working circuit for the working gas includes, in series, a compression station, a cold box, a heat exchange system exchanging heat between the cooled working gas and a user, the device further comprising an additional pre-cooling system comprising at least one tank of auxiliary cryogenic fluid, such as liquid nitrogen, the cold box comprising a first cooling stage of the working gas comprising a first exchanger disposed at the output of the compression station as well as a second heat exchanger and a third heat exchanger, the first heat exchanger being of the aluminum plate-fin type, the second heat exchanger being of the tube or welded plate type, characterized in that the second and third heat exchangers are connected both serially and in parallel on the working circuit downstream of the first heat exchanger.
摘要翻译：一种用于冷冻和/或液化包括氦气的工作气体的装置，该装置包括用于工作气体的循环工作回路，其包括串联的压缩站，冷箱，在冷却的工作气体和用户，该装置还包括附加的预冷却系统，其包括至少一个辅助低温流体罐（例如液氮），所述冷箱包括工作气体的第一冷却级，所述第一冷却级包括布置在压缩站以及第二热交换器和第三热交换器，所述第一热交换器为铝板翅片型，第二热交换器为管式或焊接板式，其特征在于，所述第二和第三热交换器在第一热交换器下游的工作电路上串联和并联连接。

8. 发明申请

US20220268516A1 COOLING AND/OR LIQUEFYING SYSTEM AND METHOD 有权
公开(公告)号：US20220268516A1
公开(公告)日：2022-08-25
申请号：US17632992
申请日：2020-07-08
申请人： L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
发明人： Fabien DURAND , Remi NICOLAS , Cecile GONDRAND , Jean-Marc BERNHARDT
IPC分类号： F25J1/00
摘要： Disclosed is a low-temperature refrigeration device comprising a working circuit that forms a loop and contains a working fluid, the device further comprising a cooling exchanger for extracting heat from at least one member by exchanging heat with the working fluid, the working circuit forming a cycle comprising, connected in series: a compression mechanism, a cooling mechanism, an expansion mechanism and a heating mechanism, wherein the mechanism for cooling the working fluid and the heating mechanism comprise a common heat exchanger in which the working fluid flows in opposite directions in two separate transit portions of the circuit according to whether it is cooled or heated, the device being designed to ensure equal mass flow rates in the two transit portions in the common heat exchanger, the device also comprising a bypass for bypassing one of the two transit portions, said bypass comprising a bypass valve which, in the open state, changes the mass flow rate in one of the two transit portions.

9. 发明申请

US20200041201A1 REFRIGERATION AND/OR LIQUEFACTION DEVICE, AND ASSOCIATED METHOD 审中-公开
公开(公告)号：US20200041201A1
公开(公告)日：2020-02-06
申请号：US16583594
申请日：2019-09-26
申请人： L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
发明人： Jean-Marc BERNHARDT , Fabien DURAND , Vincent HELOIN , Pierre BARJHOUX , Gilles FLAVIEN
IPC分类号： F25J1/00 , F25J1/02 , F25B9/00
摘要： A device for refrigerating and/or liquefying a working gas comprising helium, the device comprising a looped working circuit for the working gas includes, in series, a compression station, a cold box, a heat exchange system exchanging heat between the cooled working gas and a user, the device further comprising an additional pre-cooling system comprising at least one tank of auxiliary cryogenic fluid, such as liquid nitrogen, the cold box comprising a first cooling stage of the working gas comprising a first exchanger disposed at the output of the compression station as well as a second heat exchanger and a third heat exchanger, the first heat exchanger being of the aluminum plate-fin type, the second heat exchanger being of the tube or welded plate type, characterized in that the second and third heat exchangers are connected both serially and in parallel on the working circuit downstream of the first heat exchanger.

10. 发明申请

US20190063791A1 CRYOGENIC REFRIGERATION DEVICE 审中-公开
公开(公告)号：US20190063791A1
公开(公告)日：2019-02-28
申请号：US16075792
申请日：2017-01-17
申请人： L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
发明人： Fabien DURAND
IPC分类号： F25B9/14
摘要： Cryogenic refrigeration device comprising a working circuit intended to cool a working fluid circulating in the said circuit, the working circuit comprising, arranged in series in a loop: a compression portion, a cooling portion, a portion with valve(s), an expansion portion and a reheating portion, in order to subject the working fluid to a recuperative working cycle comprising compression, then cooling, then expansion and then reheating to prepare for a new cycle, wherein the compression portion comprises at least one compressor having a linear piston driven by a linear motor, the expansion proportion comprises at least one expander with a linear piston, the portion with valve(s) comprises at least one regulating valve linearly actuated by a linear motor and controlled in order to supply or extract the working fluid from the at least one expansion piston.

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