초록 ▼

A heat exchanger having a first counterflow heat exchange unit with first and second segments wherein a flow of at least one product from a cryogenic air separation unit is channeled in a first direction along both the first and second segments and a second counterflow heat exchange unit is juxtapos

A heat exchanger having a first counterflow heat exchange unit with first and second segments wherein a flow of at least one product from a cryogenic air separation unit is channeled in a first direction along both the first and second segments and a second counterflow heat exchange unit is juxtaposed to the second segment of the first counterflow heat exchange unit and receives a flow of feed air which is channeled in a second direction that is counter to the first direction and allows heat exchange between the product and the air. A crossflow subcooling unit is juxtaposed to the first segment and receives at least one process cryogenic liquid from the air separation system for subcooling.

대표청구항 ▼

[ What is claimed is:] [1.] A heat exchanger cryogenic air separation system combination, comprising:a first heat exchange unit including a first segment and a second segment, for receiving a flow of at least one cryogenic product from an air separation system and for channeling said flow in a first

[ What is claimed is:] [1.] A heat exchanger cryogenic air separation system combination, comprising:a first heat exchange unit including a first segment and a second segment, for receiving a flow of at least one cryogenic product from an air separation system and for channeling said flow in a first direction along said first segment and said second segment;a second heat exchange unit comprising first and second portions, said first portion in heat exchange communication with said first segment and said second portion in heat exchange communication with said second segment, (i) said second portion receiving a flow of air and channeling said flow of air in a counterflow direction to flow of said at least one cryogenic product in said second segment and (ii) said first portion arranged to enable flow therethrough to be a crossflow in said first segment, said first portion receiving at least one process cryogenic liquid from said air separation system and providing a crossflow thereof with respect to flow of said at least one cryogenic product in said first segment, to achieve a subcooling of said at least one process cryogenic liquid; and a subcooling unit comprising a third portion and a fourth portion, said third portion in heat exchange communication with said first segment and said fourth portion in heat exchange communication with said second segment, (i) said fourth portion receiving a flow of product gas from said air separation system and channeling said flow of product gas in a co-flow direction to flow of said at least one cryogenic product in said second segment and (ii) said third portion arranged to enable flow therethrough to be a crossflow in said first segment, said third portion receiving at least one process cryogenic liquid from said air separation system and providing a crossflow thereof with respect to flow of said at least one cryogenic product in said first segment, to achieve a subcooling of said at least one process cryogenic liquid.