| 摘要 |
An apparatus for separating air by cryogenic distillation comprises a double air separation column (K1, K2), a first exchange line (E1), a first pressurizer (B1), a second pressurizer (B2), a first turbine (T1), a second turbine (T2), means (3, 7) for sending air to the first pressurizer, from the first pressurizer to the first exchange line, and from a first exchange line to the first turbine, means for sending a first fraction of the air from the first turbine to the double air separation column, means (39) for sending a second fraction of the air from the first turbine to the second turbine without passing through the first exchange line, means for sending expanded air from the second turbine to the atmosphere, means (63) for sending air from the first pressurizer to the second pressurizer, a second exchange line (E2) and means (51) for sending air expanded in the second turbine and pressurized air from the second pressurizer to the second exchange line. |
