Multi-phase pump with cooled liquid reservoir
US10962002B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 1, 2016 |
| Grant date | Mar 30, 2021 |
| Priority date | — |
| Expiry date | Jul 12, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C2210/24
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Overheating of a process liquid retained in a reservoir of a multiphase pump during extended gas slugs is avoided by circulating a cooling liquid in thermal contact with a process liquid through an external cooling apparatus, which can include a heat exchanger. In some embodiments, process liquid from the reservoir is circulated through the cooling loop, while in other embodiments a separate cooling liquid is circulated between a reservoir heat exchanger and the external cooling apparatus. The liquid in the cooling loop can be circulated by a separate cooling pump, or process liquid can be circulated through the cooling loop due to a pressure differential between an inlet and an outlet of the cooling loop within the multiphase pump. The multiphase pump can be a twin screw pump, and the reservoir can be formed between outer and inner casings of the multiphase pump.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.