公开(公告)号：US08991209B2

公开(公告)日：2015-03-31

申请号：US12965958

申请日：2010-12-13

申请人： Shinji Tomita ,  Kouhei Nakamura ,  Kenji Hirose ,  Jerome Beauvisage ,  Bao Ha

发明人： Shinji Tomita ,  Kouhei Nakamura ,  Kenji Hirose ,  Jerome Beauvisage ,  Bao Ha

IPC分类号： F25J3/00 ,  F25J3/04

CPC分类号： F25J3/04412 ,  F25J3/04048 ,  F25J3/0406 ,  F25J3/04212 ,  F25J3/04309 ,  F25J3/04315 ,  F25J3/04321 ,  F25J3/04333 ,  F25J3/04393 ,  F25J3/0486 ,  F25J2200/40 ,  F25J2200/54 ,  F25J2230/08 ,  F25J2235/42 ,  F25J2245/02 ,  F25J2245/42

摘要： A method and apparatus for producing high pressure nitrogen is provided. This system includes a first compressor for compressing air and cooling air to substantially the dew-point, a high pressure column, a medium pressure column, a conduit for introducing at least a portion of the compressed air at a base of the high pressure column; a conduit for removing a oxygen enriched liquid from the base of the high pressure column; a first valve for reducing the pressure of the oxygen enriched liquid to a medium pressure, where the medium pressure is between the high pressure and atmospheric pressure, a conduit for introducing the oxygen enriched liquid at an intermediate place of the medium pressure column; a second expander for reducing the pressure of at least a part of the liquid removed from the base of the medium pressure distillation column, to a low pressure to cool a top condenser of the medium pressure column and to form a waste vapor stream; a cold compressor for compressing a vapor stream removed form the medium pressure column, cooling the compressed vapor stream, and introducing it into the base of the high pressure column; a heat exchanger for heating the waste vapor stream, a first expander for expanding the heated stream to produce power; a conduit for withdrawing liquid from the top of the medium pressure column, pump for pumping the withdrawn liquid to high pressure and injecting it at the top of the high pressure column; and conduit for withdrawing product nitrogen from the top of the high pressure column.

摘要翻译： 提供了一种生产高压氮的方法和装置。 该系统包括用于将空气和冷却空气压缩至基本露点的第一压缩机，高压塔，中压塔，用于在压力塔的底部引入至少一部分压缩空气的导管; 用于从高压塔的底部除去富氧液体的管道; 第一阀，用于将富氧液体的压力降低到介质压力介于高压和大气压之间的介质压力，用于将富氧液体引入中压塔的中间位置的导管; 第二膨胀机，用于将从中压蒸馏塔底部排出的至少一部分液体的压力降低到低压以冷却中压塔的顶部冷凝器并形成废蒸气流; 用于压缩从中压塔除去的蒸气流的冷压缩机，冷却压缩的蒸气流，并将其引入高压塔的底部; 用于加热废蒸汽流的热交换器，用于膨胀加热的流以产生动力的第一膨胀器; 用于从中压塔的顶部抽出液体的管道，用于将排出的液体泵送到高压并将其注入高压塔顶部的泵; 以及用于从高压塔的顶部排出产品氮的管道。

公开(公告)号：US20120144861A1

公开(公告)日：2012-06-14

申请号：US12965958

申请日：2010-12-13

申请人： Shinji Tomita ,  Kouhei Nakamura ,  Kenji Hirose ,  Jerome Beauvisage ,  Bao Ha

发明人： Shinji Tomita ,  Kouhei Nakamura ,  Kenji Hirose ,  Jerome Beauvisage ,  Bao Ha

IPC分类号： F25J3/00

CPC分类号： F25J3/04412 ,  F25J3/04048 ,  F25J3/0406 ,  F25J3/04212 ,  F25J3/04309 ,  F25J3/04315 ,  F25J3/04321 ,  F25J3/04333 ,  F25J3/04393 ,  F25J3/0486 ,  F25J2200/40 ,  F25J2200/54 ,  F25J2230/08 ,  F25J2235/42 ,  F25J2245/02 ,  F25J2245/42

摘要： A method and apparatus for producing high pressure nitrogen is provided. This system includes a first compressor for compressing air and cooling air to substantially the dew-point, a high pressure column, a medium pressure column, a conduit for introducing at least a portion of the compressed air at a base of the high pressure column; a conduit for removing a oxygen enriched liquid from the base of the high pressure column; a first valve for reducing the pressure of the oxygen enriched liquid to a medium pressure, where the medium pressure is between the high pressure and atmospheric pressure, a conduit for introducing the oxygen enriched liquid at an intermediate place of the medium pressure column; a second expander for reducing the pressure of at least a part of the liquid removed from the base of the medium pressure distillation column, to a low pressure to cool a top condenser of the medium pressure column and to form a waste vapor stream; a cold compressor for compressing a vapor stream removed form the medium pressure column, cooling the compressed vapor stream, and introducing it into the base of the high pressure column; a heat exchanger for heating the waste vapor stream, a first expander for expanding the heated stream to produce power; a conduit for withdrawing liquid from the top of the medium pressure column, pump for pumping the withdrawn liquid to high pressure and injecting it at the top of the high pressure column; and conduit for withdrawing product nitrogen from the top of the high pressure column.

摘要翻译： 提供了一种生产高压氮的方法和装置。 该系统包括用于将空气和冷却空气压缩至大致露点的第一压缩机，高压塔，中压塔，用于在压力塔的底部引入至少一部分压缩空气的导管; 用于从高压塔的底部除去富氧液体的管道; 第一阀，用于将富氧液体的压力降低到介质压力介于高压和大气压之间的介质压力，用于将富氧液体引入中压塔的中间位置的导管; 第二膨胀机，用于将从中压蒸馏塔底部排出的至少一部分液体的压力降低到低压以冷却中压塔的顶部冷凝器并形成废蒸气流; 用于压缩从中压塔除去的蒸气流的冷压缩机，冷却压缩的蒸气流，并将其引入高压塔的底部; 用于加热废蒸汽流的热交换器，用于膨胀加热的流以产生动力的第一膨胀器; 用于从中压塔的顶部抽出液体的管道，用于将排出的液体泵送到高压并将其注入高压塔顶部的泵; 以及用于从高压塔的顶部排出产品氮的管道。