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    DEVICE AND METHOD FOR REFRIGERATION OR LIQUEFACTION OF A FLUID
    2.
    发明公开
    DEVICE AND METHOD FOR REFRIGERATION OR LIQUEFACTION OF A FLUID 审中-公开

    公开(公告)号：US20240118024A1

    公开(公告)日：2024-04-11

    申请号：US18276603

    申请日：2022-01-18

    申请人： L'Air Liquide, Societe Anonyme pour l'Etude et l’Exploitation des Procedes Georges Claude

    发明人： Mathieu ROIG ,  Remi NICOLAS ,  Fabien DURAND ,  Guillaume DELAUTRE

    IPC分类号： F25J1/02 ,  F25J1/00

    CPC分类号： F25J1/0279 ,  F25J1/001 ,  F25J1/0022 ,  F25J1/005 ,  F25J1/0065 ,  F25J1/0067 ,  F25J1/0072 ,  F25J1/0097 ,  F25J1/0284 ,  F25J1/0296 ,  F25J1/0298 ,  F25J2230/04 ,  F25J2270/14

    摘要： Disclosed is a device for refrigerating or liquefying a fluid such as natural gas or hydrogen, comprising a circuit for fluid that is to be cooled and has an upstream end for connection to a source of gaseous fluid and a downstream end for connection to a member for collecting the cooled or liquefied fluid, the device comprising a heat exchanger assembly in heat exchange with the circuit of fluid to be cooled, the device comprising a refrigerator in heat exchange with at least a portion of the heat exchanger assembly, the refrigerator being of the type that has a cycle for refrigerating a cycle gas containing at least one of: helium, hydrogen, nitrogen or neon; said refrigerator comprising, arranged in series in a cycle circuit: a mechanism for compressing the cycle gas, at least one member for coding the cycle gas, a mechanism for expanding the cycle gas, and at least one member for reheating the expanded cycle gas, wherein the compression mechanism comprises a plurality of compression stages in series composed of a centrifugal compressor assembly, the compression stages being mounted on a set of shafts rotated by an assembly of one or more motors, the at least one member for cooling the cycle gas comprising at least one heat exchanger arranged at the outlet of at least one compression stage in heat exchange with the cycle circuit, said heat exchanger being cooled by a heat-transfer fluid, characterized in that the compression mechanism comprises at least two compression stages that are arranged successively in series and do not include any member for cooling the cycle gas such as a heat exchanger therebetween.

    Method for liquefying natural gas with a triple closed circuit of coolant gas
    6.
    发明授权
    Method for liquefying natural gas with a triple closed circuit of coolant gas 有权
    用冷却剂气体的三重闭合电路液化天然气的方法

    公开(公告)号：US09557101B2

    公开(公告)日：2017-01-31

    申请号：US14127910

    申请日：2012-06-22

    申请人： Marc Bonnissel ,  Bertrand Du Parc ,  Eric Zielinski

    发明人： Marc Bonnissel ,  Bertrand Du Parc ,  Eric Zielinski

    IPC分类号： F25J1/00 ,  F25J1/02

    CPC分类号： F25J1/0022 ,  F25J1/005 ,  F25J1/0072 ,  F25J1/0097 ,  F25J1/0204 ,  F25J1/0212 ,  F25J1/0254 ,  F25J1/0283 ,  F25J1/0284 ,  F25J1/0285 ,  F25J1/0287 ,  F25J1/0288 ,  F25J1/0289 ,  F25J2230/22 ,  F25J2270/14 ,  F25J2270/16

    摘要： A process for liquefying natural gas by; a) causing it to flow through three series connected heat exchangers, where gas is cooled to T3; T3 is less/equal to the liquefaction temperature of natural gas at atmospheric pressure; and b) causing the closed circuit circulation of a first stream of refrigerant gas at a pressure P1 lower than P3 entering the third exchanger and leaving the first exchanger, the first stream obtained using a first expander to expand a first portion of a second stream at P3 higher than P2, the second stream flowing relative to the natural gas stream entering the first exchanger and leaving the second exchanger; and a third stream at a pressure P2 higher than P1 and lower than P3 flowing relative to the first stream, entering the second exchanger and leaving the first exchanger; c) the second stream at the pressure P3 obtained by compression.

    摘要翻译： 液化天然气的过程; a）使其流过三个串联的热交换器，其中气体被冷却到T3; T3在大气压下天然气液化温度较低/等于; 以及b）使得第一制冷剂气体流的闭合循环在低于进入第三交换器的P3的压力下离开第一交换器，使用第一膨胀器获得的第一流将第二流的第一部分膨胀 P3高于P2，第二流相对于进入第一交换器并离开第二交换器的天然气流流动; 以及相对于第一流流动的高于P1且低于P3的压力P2的第三流，进入第二交换器并离开第一交换器; c）通过压缩获得的压力P3下的第二流。

    Air Separation Apparatus for Isobaric Separation and Production of Oxygen and Nitrogen
    10.
    发明申请
    Air Separation Apparatus for Isobaric Separation and Production of Oxygen and Nitrogen 审中-公开
    用于等压分离和生产氧气和氮气的空气分离装置

    公开(公告)号：US20150354888A1

    公开(公告)日：2015-12-10

    申请号：US14763708

    申请日：2014-01-24

    申请人： NANJING RECLAIMER ENVIRONMENTAL TEKNIK CO., LTD.

    发明人： Haibo WANG

    IPC分类号： F25J3/04

    CPC分类号： F25J3/0426 ,  F25J3/04084 ,  F25J3/0409 ,  F25J3/04127 ,  F25J3/04157 ,  F25J3/04163 ,  F25J3/04224 ,  F25J3/04248 ,  F25J3/04254 ,  F25J3/04278 ,  F25J3/04412 ,  F25J3/04418 ,  F25J2200/06 ,  F25J2200/20 ,  F25J2205/24 ,  F25J2210/42 ,  F25J2235/42 ,  F25J2240/44 ,  F25J2270/14

    摘要： This invention is about an air separation apparatus to produce oxygen and nitrogen through isobaric separation, which is based on the Rankine cycle system of similar thermal energy power circulation apparatus at cryogenic side, a liquid pump is used to input work and the cold is made up to the air separation apparatus with refrigerating media, so as to realize the isobaric separation of air to produce nitrogen and oxygen. The air separation apparatus of this invention can save energy by over 30% as compared with the traditional advanced apparatus with the identical refrigerating capacity, and it can also realize centralize gas supply via the air separation apparatus, therefore it constitutes a breakthrough to the traditional air separation technology and refrigeration theory, with substantial economic, social and environmental protection benefits.

    摘要翻译： 本发明涉及一种通过等压分离产生氧和氮的空气分离装置，其基于在低温侧类似的热能动力循环装置的兰金循环系统，液体泵用于输入工作，并且冷组成 到具有制冷介质的空气分离装置，以实现空气的等压分离以产生氮和氧。 本发明的空气分离装置与具有相同制冷能力的传统先进装置相比可以节约30％以上的能量，并且还可以通过空气分离装置实现集中供气，从而构成对传统空气的突破 分离技术和制冷理论，具有重大的经济，社会和环境保护效益。