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公开(公告)号：US10119756B2
公开(公告)日：2018-11-06
申请号：US14907608
申请日：2013-10-23
申请人： PRAXAIR TECHNOLOGY, INC. , David Parsnick , James P. Meagher , John F. Billingham , Gerald A. Paolino
摘要： A method and backup system for backing up a supply oxygen in an air separation plant in which during normal operation, a stream of oxygen-rich liquid is pumped through a main flow path, extending from a surge tank to a heat exchanger, to deliver an oxygen product. The surge tank receives the oxygen-rich liquid from a bottom region of the lower pressure column of the plant. Additionally, during normal operations, a stream of the oxygen-rich liquid is also introduced to a reserve storage tank through a backup flow path. During a transient operation, where the air separation plant has ceased operation, the surge tank is isolated and liquid is pumped from the surge tank through an auxiliary flow path to an auxiliary vaporizer to continue the supply of the oxygen product and the surge tank is replenished with oxygen-rich liquid previously stored in the reserve storage tank.
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公开(公告)号：US20160161180A1
公开(公告)日：2016-06-09
申请号：US14907608
申请日：2013-10-23
申请人： David PARSNICK , James P. MEAGHER , John F. BILLINGHAM , Gerald A. PAOLINO , PRAXAIR TECHNOLOGY, INC.
CPC分类号： F25J3/0295 , F17C13/00 , F25J3/0409 , F25J3/04187 , F25J3/04478 , F25J3/04818 , F25J3/04824 , F25J3/0489 , F25J3/04963 , F25J2235/50 , F25J2245/50 , F25J2250/50 , F25J2290/62
摘要： A method and backup system for backing up a supply oxygen in an air separation plant in which during normal operation, a stream of oxygen-rich liquid is pumped through a main flow path, extending from a surge tank to a heat exchanger, to deliver an oxygen product. The surge tank receives the oxygen-rich liquid from a bottom region of the lower pressure column of the plant. Additionally, during normal operations, a stream of the oxygen-rich liquid is also introduced to a reserve storage tank through a backup flow path. During a transient operation, where the air separation plant has ceased operation, the surge tank is isolated and liquid is pumped from the surge tank through an auxiliary flow path to an auxiliary vaporizer to continue the supply of the oxygen product and the surge tank is replenished with oxygen-rich liquid previously stored in the reserve storage tank.
摘要翻译： 一种用于备份空气分离设备中的供氧的方法和备用系统，其中在正常操作期间，富氧液体流被泵送通过主流路，从缓冲罐延伸到热交换器，以输送 氧气产品。 缓冲罐从工厂的低压塔的底部区域接收富氧液体。 此外，在正常操作期间，富氧液体流也通过备用流动路径被引入储备储罐。 在空分设备停止运行的瞬时操作过程中，缓冲罐是隔离的，液体从缓冲罐通过辅助流动路径泵送到辅助蒸发器，以继续供应氧气产品，并且缓冲罐被补充 其中富氧液体预先储存在储备储罐中。
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