US 11,892,234 B2
Staged cryogenic storage type supercritical compressed air energy storage system and method
Xipeng Lin, Beijing (CN); Liang Wang, Beijing (CN); Haisheng Chen, Beijing (CN); Ningning Xie, Beijing (CN); and Zheng Yang, Beijing (CN)
Assigned to Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing (CN)
Appl. No. 16/617,476
Filed by INSTITUTE OF ENGINEERING THERMOPHYSICS, CHINESE ACADEMY OF SCIENCES, Beijing (CN)
PCT Filed Jun. 1, 2017, PCT No. PCT/CN2017/086877
§ 371(c)(1), (2) Date Nov. 26, 2019,
PCT Pub. No. WO2018/218617, PCT Pub. Date Dec. 6, 2018.
Prior Publication US 2020/0182542 A1, Jun. 11, 2020
Int. Cl. F25J 1/02 (2006.01); F25J 1/00 (2006.01)
CPC F25J 1/0237 (2013.01) [F25J 1/005 (2013.01); F25J 1/0012 (2013.01); F25J 1/0223 (2013.01); F25J 1/0234 (2013.01); F25J 1/0242 (2013.01); F25J 2230/22 (2013.01); F25J 2230/24 (2013.01); F25J 2230/40 (2013.01); F25J 2240/04 (2013.01); F25J 2240/10 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A staged cryogenic storage type supercritical compressed air energy storage system, comprising a supercritical liquefaction subsystem for converting input gaseous air into liquid air and an evaporation and expansion subsystem for converting liquid air into gaseous air, wherein the staged cryogenic storage type supercritical compressed air energy storage system further comprises:
a staged cryogenic storage subsystem for storing and/or releasing cryogenic energy when the gaseous air or the liquid air is converted,
wherein the staged cryogenic storage subsystem comprises at least one cold box, at least one deep cooling cryogenic storage cycle, and at least one intermediate cooling cryogenic storage cycle,
wherein the cold box is used as a liquefaction cold box or an evaporation cold box,
wherein the deep cooling cryogenic storage cycle is connected with the cold box for releasing cryogenic energy from a deep cooling temperature to a room temperature when the cold box is used as the liquefaction cold box, and for storing cryogenic energy from the deep cooling temperature to the room temperature when the cold box is used as the evaporation cold box,
wherein the intermediate cooling cryogenic storage cycle is connected with the cold box for releasing cryogenic energy from the deep cooling temperature to an intermediate cooling temperature or storing cryogenic energy from the intermediate cooling temperature to the room temperature when the cold box is used as the liquefaction cold box, and for storing cryogenic energy from the deep cooling temperature to the intermediate cooling temperature or releasing cryogenic energy from the intermediate cooling temperature to the room temperature when the cold box is used as the evaporation cold box,
wherein the intermediate cooling temperature is between the deep cooling temperature and the room temperature,
wherein the cold box includes at least one deep cooling cycle internal flow passage, at least one intermediate cooling cycle internal flow passage, at least one supercritical flow passage, and at least one cryogenic energy recovery flow passage,
wherein the deep cooling cryogenic storage cycle includes at least one deep cooling storage tank, at least one deep cooling cycle fan, and at least one deep cooling cycle external flow passage, and the at least one deep cooling cycle external flow passage is connected with at least one deep cooling storage tank and at least one deep cooling cycle fan, and connected with a deep cooling cycle internal flow passage in the cold box to form a complete cycle flow passage, and
wherein the intermediate cooling cryogenic storage cycle includes at least one intermediate cooling storage tank, at least one intermediate cooling cycle fan, and at least one intermediate cooling cycle external flow passage, and the at least one intermediate cooling cycle external flow passage is connected with at least one intermediate cooling storage tank and at least one intermediate cooling cycle fan, and connected with an intermediate cooling cycle internal flow passage in the cold box to form a complete cycle flow passage.