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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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公开(公告)号：US20160186930A1
公开(公告)日：2016-06-30
申请号：US14907615
申请日：2014-02-28
CPC分类号： F17C9/02 , F17C13/02 , F17C2221/011 , F17C2227/0135 , F17C2250/03 , F25J3/0409 , F25J3/04412 , F25J3/04781 , F25J2235/50
摘要： A method and delivery system for delivering a pressurized product stream from an air separation plant in which a liquid stream is pumped by a pump at cryogenic temperature and then heated in a heat exchanger of a flow network to produce the pressurized product stream. The flow network is designed to control flow of the pressurized product stream and to maintain the pressure of the pressurized product stream at a constant design pressure. The design pressure is maintained by sensing pressure of the pressurized product stream and varying the speed of a motor driving the pump to maintain the pressure at the design pressure.
摘要翻译： 一种用于从空气分离设备输送加压产物流的方法和递送系统，其中液体流在低温下由泵泵送，然后在流动网络的热交换器中加热以产生加压产物流。 流动网络被设计成控制加压产物流的流动并且将加压产物流的压力保持在恒定的设计压力。 通过感测加压产品流的压力并改变驱动泵的电动机的速度来维持设计压力，以将压力保持在设计压力。
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