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    AIR SEPARATION METHOD AND APPARATUS
    2.
    发明申请
    AIR SEPARATION METHOD AND APPARATUS 审中-公开
    空气分离方法和装置

    公开(公告)号：US20130139547A1

    公开(公告)日：2013-06-06

    申请号：US13674393

    申请日：2012-11-12

    申请人： Henry Edward Howard ,  Matthew R. Watt ,  Thomas J. Bergman, JR.

    发明人： Henry Edward Howard ,  Matthew R. Watt ,  Thomas J. Bergman, JR.

    IPC分类号： F25J3/04

    CPC分类号： F25J3/0409 ,  F25J3/04103 ,  F25J3/04206 ,  F25J3/04212 ,  F25J3/0423 ,  F25J3/04254 ,  F25J3/04284 ,  F25J3/0443 ,  F25J3/04884 ,  F25J2200/20 ,  F25J2205/02 ,  F25J2210/42 ,  F25J2210/50 ,  F25J2240/44 ,  F25J2250/02 ,  F25J2270/02

    摘要： A method and apparatus to produce oxygen and nitrogen co-products in which a compressed a compressed and purified air stream is cooled, fully or partially condensed and then rectified in a main distillation column to form a nitrogen-rich vapor column overhead and crude liquid oxygen. A crude liquid oxygen stream is depressurized and then stripped in an auxiliary distillation column with a stripping gas to produce an oxygen-rich liquid. The nitrogen-rich vapor column overhead from the main distillation column is used to form a nitrogen product and the crude liquid oxygen is partially vaporized to produce the stripping gas, a residual oxygen-rich liquid and liquid nitrogen reflux to the main distillation column. The oxygen product is formed from the residual oxygen-rich liquid by either providing the heat exchange duty in condensing the compressed and purified air stream or by condensing nitrogen-rich vapor used in refluxing the main distillation column.

    摘要翻译： 一种生产氧和氮共同产物的方法和装置，其中将压缩的和纯化的空气流冷却，完全或部分冷凝，然后在主蒸馏塔中进行精馏，以形成富氮蒸汽塔塔顶馏出物和粗液氧 。 将粗液氧气流减压，然后在辅助蒸馏塔中用汽提气汽提，以产生富氧液体。 来自主蒸馏塔的富氮蒸汽塔塔顶用于形成氮产物，粗液氧部分汽化，产生汽提气体，残余富氧液体和液氮回流至主蒸馏塔。 通过在冷凝压缩和纯化的空气流中提供热交换负荷或通过冷凝用于回流主蒸馏塔中的富氮蒸气，从残余富氧液体形成氧气产物。

    Cooling system employing a primary, high pressure closed refrigeration loop and a secondary refrigeration loop
    4.
    发明授权
    Cooling system employing a primary, high pressure closed refrigeration loop and a secondary refrigeration loop 失效
    采用初级，高压闭式制冷回路和二级制冷回路的冷却系统

    公开(公告)号：US5524442A

    公开(公告)日：1996-06-11

    申请号：US265871

    申请日：1994-06-27

    申请人： Thomas J. Bergman, Jr. ,  Mark J. Roberts ,  Arun Acharya ,  Carl J. Heim ,  Alfred M. Czikk

    发明人： Thomas J. Bergman, Jr. ,  Mark J. Roberts ,  Arun Acharya ,  Carl J. Heim ,  Alfred M. Czikk

    IPC分类号： F25B9/06 ,  F25B9/00 ,  F25B25/00 ,  F28F3/04

    CPC分类号： F28F3/048 ,  F25B25/005 ,  F25B9/004 ,  F25B2309/06

    摘要： A cooling system includes a unit for processing product to be cooled or frozen. A secondary refrigeration loop is connected to this unit and introduces a refrigerant at or near atmospheric pressure into the unit. The secondary refrigeration loop may be open or closed. The secondary loop includes a secondary heat exchanger for cooling the refrigerant. A primary, closed refrigeration loop, operating at a pressure of not less than 2 atmospheres, includes a forward flow path which comprises a primary refrigerant compressor for producing compressed primary refrigerant, a primary heat exchanger for receiving and cooling the compressed primary refrigerant and an expander for further cooling and transferring the compressed refrigerant to the secondary heat exchanger to enable cooling of the secondary refrigerant. The primary loop further includes a return flow path from the secondary heat exchanger to the primary refrigerant compressor and to the primary heat exchanger. The primary heat exchanger thereby provides heat exchange from the return flow path to the forward flow path to accomplish a cooling action.

    摘要翻译： 冷却系统包括用于处理要冷却或冷冻的产品的单元。 二次制冷回路连接到该单元，并将大气压力或接近大气压的制冷剂引入到单元中。 次级制冷回路可以是开或关的。 次级回路包括用于冷却制冷剂的二次热交换器。 在不低于2个大气压的压力下操作的主要的闭式制冷回路包括一个前进流路，该前进流动路径包括用于生产压缩的一次制冷剂的一次制冷剂压缩机，用于接收和冷却压缩的一次制冷剂的一次热交换器和一个膨胀机 用于进一步冷却并将压缩的制冷剂转移到二次热交换器以使二次制冷剂冷却。 主回路还包括从次级热交换器到主制冷剂压缩机和主热交换器的回流路径。 因此，主热交换器提供从返回流动路径到前向流动路径的热交换以实现冷却动作。