Steam turbine driven centrifugal heat pump
US10704810B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2014 |
| Grant date | Jul 7, 2020 |
| Priority date | — |
| Expiry date | Dec 18, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF25B2400/075
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A centrifugal heat pump system includes a steam system with a steam supply, a steam turbine and a steam condenser connected in a steam loop; and a refrigerant system including a first compressor and a second compressor, a refrigerant condenser, and an evaporator connected in a refrigerant loop. The steam turbine includes a rotary drive shaft disposed axially and extending from a first end and a second end of the steam turbine. A sump system collects and redistributes oil or other lubricating fluid. The first compressor is coupled by a first coupling device to the first end of the steam turbine drive shaft and the second compressor is coupled by a second coupling device to the second end of the steam turbine drive shaft. The first and second compressors are connected in parallel in the refrigerant loop and controlled to share a cooling load equally.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.