发明名称 |
Process and installation for producing gaseous nitrogen with variable flow rate |
摘要 |
In this process of the liquid nitrogen/rich liquid HPN swing type, the connection between the head of the column (4) and the liquid nitrogen holding tank (7) is effected, for the two flow directions of the liquid nitrogen, by a single conduit (12) equipped with a pressure reducing device (13). The direction and the flow rate of the liquid nitrogen flow are controlled by the variations of the pressure of the column, and the holding tanks of liquid nitrogen and rich liquid are maintained at constant pressures.
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申请公布号 |
US5355680(A) |
申请公布日期 |
1994.10.18 |
申请号 |
US19930136276 |
申请日期 |
1993.10.15 |
申请人 |
L'AIR LIQUIDE, SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE |
发明人 |
DARREDEAU, BERNARD;GRENIER, MAURICE;GARNIER, CATHERINE;VENET, FRANCOIS |
分类号 |
F25J3/04;(IPC1-7):F25J3/00 |
主分类号 |
F25J3/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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