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公开(公告)号：US20100192629A1
公开(公告)日：2010-08-05
申请号：US12363279
申请日：2009-01-30
IPC分类号： F25J3/00
CPC分类号： F28D9/0062 , F25J3/0409 , F25J3/04218 , F25J3/04296 , F25J3/04303 , F25J3/04309 , F25J3/04315 , F25J3/04412 , F25J5/002 , F25J2290/10 , F25J2290/12 , F28F3/025
摘要： The present invention relates to a method of producing an oxygen product by heating a pumped liquid oxygen stream within a heat exchanger through indirect heat exchange with compressed air. The liquid oxygen stream is pressurized to an oxygen pressure in a range above about 55 bar(a) and no greater than about 150 bar(a) and heated within the heat exchanger to form a supercritical fluid. The air is compressed to an air pressure upon entering the heat exchanger that is a function of the oxygen pressure that will result in a minimum power being expended in the compression of the air. The heat exchanger can be a brazed fin heat exchanger fabricated from aluminum in which the fins located in heat exchange passages have an undulating configuration to increase the flow path length and induce flow separation and thereby increase the heat transfer coefficient within the heat exchanger.
摘要翻译： 本发明涉及通过在热交换器内通过与压缩空气进行间接热交换来加热泵送的液氧流来生产氧气产物的方法。 液体氧气流被加压到高于约55巴（a）和不大于约150巴（a）的范围内的氧气压力，并在热交换器内加热以形成超临界流体。 空气在进入热交换器时被压缩至空气压力，该换热器是氧气压力的函数，其将导致在压缩空气中消耗的最小功率。 热交换器可以是由铝制成的钎焊翅片热交换器，其中位于热交换通道中的翅片具有波形构型以增加流路长度并引起流动分离，从而增加热交换器内的传热系数。
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公开(公告)号：US20100287986A1
公开(公告)日：2010-11-18
申请号：US12842098
申请日：2010-07-23
IPC分类号： F25J3/00
CPC分类号： F25J3/04018 , F25J3/04066 , F25J3/0409 , F25J3/04218 , F25J3/04296 , F25J3/04303 , F25J3/04309 , F25J3/04315 , F25J3/04412 , F25J5/002 , F25J2290/10 , F28D9/0062 , F28F3/025
摘要： The present invention relates to an air separation apparatus and method in which a pumped liquid oxygen stream is heated within a heat exchanger through indirect heat exchange with compressed air to produce an oxygen product. The liquid oxygen stream is pressurized in a range above about 55 bar(a) and no greater than about 150 bar(a) and is a supercritical fluid after having been heated within the heat exchanger. The air is compressed to an air pressure that is a function of the oxygen pressure that will result in a minimum power being expended in the compression of the air. The heat exchanger can be a brazed fin heat exchanger fabricated from aluminum in which the fins located in heat exchange passages have an undulating configuration to increase the flow path length and induce flow separation and thereby increase the heat transfer coefficient within the heat exchanger.
摘要翻译： 本发明涉及一种空气分离装置和方法，其中泵送的液氧流在热交换器内通过与压缩空气的间接热交换而被加热以产生氧产物。 液氧流在高于约55巴（a）和不大于约150巴（a）的范围内加压，并且是在热交换器中被加热之后的超临界流体。 空气被压缩到作为氧气压力的函数的空气压力，这将导致在压缩空气中消耗的最小功率。 热交换器可以是由铝制成的钎焊翅片热交换器，其中位于热交换通道中的翅片具有波形构型以增加流路长度并引起流动分离，从而增加热交换器内的传热系数。
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公开(公告)号：US08726691B2
公开(公告)日：2014-05-20
申请号：US12842098
申请日：2010-07-23
IPC分类号： F25J3/00
CPC分类号： F25J3/04018 , F25J3/04066 , F25J3/0409 , F25J3/04218 , F25J3/04296 , F25J3/04303 , F25J3/04309 , F25J3/04315 , F25J3/04412 , F25J5/002 , F25J2290/10 , F28D9/0062 , F28F3/025
摘要： The present invention relates to an air separation apparatus and method in which a pumped liquid oxygen stream is heated within a heat exchanger through indirect heat exchange with compressed air to produce an oxygen product. The liquid oxygen stream is pressurized in a range above about 55 bar(a) and no greater than about 150 bar(a) and is a supercritical fluid after having been heated within the heat exchanger. The air is compressed to an air pressure that is a function of the oxygen pressure that will result in a minimum power being expended in the compression of the air. The heat exchanger can be a brazed fin heat exchanger fabricated from aluminum in which the fins located in heat exchange passages have an undulating configuration to increase the flow path length and induce flow separation and thereby increase the heat transfer coefficient within the heat exchanger.
摘要翻译： 本发明涉及一种空气分离装置和方法，其中泵送的液氧流在热交换器内通过与压缩空气的间接热交换而被加热以产生氧产物。 液氧流在高于约55巴（a）和不大于约150巴（a）的范围内加压，并且是在热交换器中被加热之后的超临界流体。 空气被压缩到作为氧气压力的函数的空气压力，这将导致在压缩空气中消耗的最小功率。 热交换器可以是由铝制成的钎焊翅片热交换器，其中位于热交换通道中的翅片具有波形构型以增加流路长度并引起流动分离，从而增加热交换器内的传热系数。
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公开(公告)号：US20100192628A1
公开(公告)日：2010-08-05
申请号：US12648775
申请日：2009-12-29
CPC分类号： F28F3/025 , F25J3/0409 , F25J3/04218 , F25J3/04296 , F25J3/04303 , F25J3/04309 , F25J3/04315 , F25J3/04412 , F25J5/002 , F25J2290/10 , F25J2290/12 , F28D9/0062
摘要： The present invention relates to an apparatus and air separation plant in which a pumped liquid oxygen stream is heated within a heat exchanger through indirect heat exchange with compressed air to produce an oxygen product. The liquid oxygen stream is pressurized in a range above about 55 bar(a) and no greater than about 150 bar(a) and is a supercritical fluid after having been heated within the heat exchanger. The air is compressed to an air pressure that is a function of the oxygen pressure that will result in a minimum power being expended in the compression of the air. The heat exchanger can be a brazed fin heat exchanger fabricated from aluminum in which the fins located in heat exchange passages have an undulating configuration to increase the flow path length and induce flow separation and thereby increase the heat transfer coefficient within the heat exchanger.
摘要翻译： 本发明涉及一种装置和空气分离装置，其中泵送的液氧气流在热交换器内通过与压缩空气的间接热交换而被加热以产生氧气产物。 液氧流在高于约55巴（a）和不大于约150巴（a）的范围内加压，并且是在热交换器中被加热之后的超临界流体。 空气被压缩到作为氧气压力的函数的空气压力，这将导致在压缩空气中消耗的最小功率。 热交换器可以是由铝制成的钎焊翅片热交换器，其中位于热交换通道中的翅片具有波形构型以增加流路长度并引起流动分离，从而增加热交换器内的传热系数。
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公开(公告)号：US20120036891A1
公开(公告)日：2012-02-16
申请号：US12855313
申请日：2010-08-12
IPC分类号： F25J3/04
CPC分类号： F25J3/0409 , F25J3/04084 , F25J3/04218 , F25J3/04296 , F25J3/04387 , F25J3/04412 , F25J3/04678 , F25J3/04957 , F25J2230/24 , F25J2230/40 , F25J2240/10 , F25J2290/12
摘要： An air separation method and apparatus in which a supercritical oxygen product is produced by heating a pumped liquid oxygen stream having a supercritical pressure, through indirect heat exchange with a boosted pressure air stream. The indirect heat exchange is conducted within a heat exchanger and a liquid nitrogen stream is vaporized in the heat exchanger to depress the pressure that would otherwise be required of the boosted pressure air stream to heat the pumped liquid oxygen stream. The pumped liquid oxygen stream constitutes 90 percent of the oxygen-rich liquid removed from an air separation unit in which the air is rectified, the liquid nitrogen constitutes at least 90 percent of the liquid nitrogen that is not used as reflux and a flow-rate ratio between the liquid nitrogen stream and the oxygen-rich liquid is between about 0.3 and 0.90.
摘要翻译： 一种空气分离方法和装置，其中通过加热具有超临界压力的泵送的液氧流，通过与增压的压力气流的间接热交换来生产超临界氧产物。 间接热交换在热交换器内进行，并且液氮流在热交换器中蒸发以降低否则将需要的增压压力空气流加热泵送的液氧流的压力。 泵送的液氧流构成从其中空气被整流的空气分离单元中去除的富氧液体的90％，液氮构成不用作回流的至少90％的液氮，流速 液氮流和富氧液体之间的比例在约0.3和0.90之间。
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公开(公告)号：US20120036892A1
公开(公告)日：2012-02-16
申请号：US13180690
申请日：2011-07-12
IPC分类号： F25J3/04
CPC分类号： F25J3/0409 , F25J3/04084 , F25J3/04218 , F25J3/04296 , F25J3/04387 , F25J3/04412 , F25J3/04678 , F25J3/04957 , F25J2230/24 , F25J2230/40 , F25J2240/10 , F25J2290/12
摘要： An air separation method and apparatus in which a supercritical oxygen product is produced by heating a pumped liquid oxygen stream having a supercritical pressure, through indirect heat exchange with a boosted pressure air stream. The indirect heat exchange is conducted within a heat exchanger and a liquid nitrogen stream is vaporized in the heat exchanger to depress the pressure that would otherwise be required of the boosted pressure air stream to heat the pumped liquid oxygen stream. The pumped liquid oxygen stream constitutes 90 percent of the oxygen-rich liquid removed from an air separation unit in which the air is rectified, the liquid nitrogen constitutes at least 90 percent of the liquid nitrogen that is not used as reflux and a flow-rate ratio between the liquid nitrogen stream and the oxygen-rich liquid is between about 0.3 and 0.90.
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