Patent ID: 11892234
Assignee: INSTITUTE OF ENGINEERING THERMOPHYSICS, CHINESE ACADEMY OF SCIENCES
Field: Chemical engineering (Chemistry)
Classification: CPC F  Y | IPC F

Claim 17:
18. The method according to claim 16, further comprising: compensating for cryogenic energy autonomously by a cryogenic energy compensation subsystem,
wherein the compensating for cryogenic energy autonomously by a cryogenic energy compensation subsystem comprises:
in a case where the staged cryogenic storage subsystem comprises at least one liquefaction cold box and at least one evaporation cold box, enabling the other branch of the two split branches of supercritical air split by the proportional adjustment device of the supercritical liquefaction subsystem to enter the cryogenic energy compensation flow passage in the liquefaction cold box of the staged cryogenic storage subsystem and cool, and then to enter the cryogenic expansion unit to expand and cool further, and to mix with cryogenic air at a gas-side outlet of the gas-liquid separator in the mixer, so that the cryogenic energy is recovered by the cryogenic energy recovery flow passage in the liquefaction cold box of the staged cryogenic storage subsystem, and then returning the air to the inlet of the multistage compressor or to gas paths between the stages of the multistage compressor; or
in a case where the staged cryogenic storage subsystem comprises at least one cold box for liquefaction and evaporation, while the cold box is connected with the cryogenic energy compensation subsystem and further comprises at least one cryogenic energy compensation flow passage and at least one cryogenic energy recovery flow passage, enabling the other branch of supercritical air split by the proportional adjustment device of the supercritical liquefaction subsystem to enter the cryogenic energy compensation flow passage in the cold box of the staged cryogenic storage subsystem and cool, and then to enter the cryogenic expansion unit to expand and cool further, and to mix with cryogenic air at a gas-side outlet of the gas-liquid separator in the mixer, so that the cryogenic energy is recovered by the cryogenic energy recovery flow passage in the cold box of the staged cryogenic storage subsystem, and then returning the air to the inlet of the multistage compressor or to gas paths between the stages of the multistage compressor.