Ejector-based cryogenic refrigeration system for cold energy recovery
US11047604B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 23, 2020 |
| Grant date | Jun 29, 2021 |
| Priority date | — |
| Expiry date | Jul 23, 2040 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2341/0012
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
An ejector-based cryogenic refrigeration system for cold energy recovery includes a first cryogenic refrigeration loop connected by a helium compressor and a cryogenic refrigerator and a second cryogenic refrigeration loop connected by the helium compressor, a regenerator, an ejector, a cold head of the cryogenic refrigerator, an end to be cooled and a pressure regulating valve. The cryogenic refrigerator is separated from the end to be cooled. The cryogenic refrigerator and the cryogenic helium cooling loop share a helium compressor, which improves the utilization efficiency of the device and reduces the cost. The ejector allows a part of fluids to circulate in the cryogenic loop, so as to maintain a required cryogenic condition, recover the pressure of the fluids, reduce the gas flowing though the compressor loop, and thus reduce the power consumption of the compressor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.