Cell for pumping a multiphase effluent and pump comprising at least one of the cells
AssigneeInstitut Francais du Petrole
InventorChristian Bratu
Life of this patent
Estimating the term…
Abstract
A cell for pumping a multiphase effluent includes two rotary parts (4-5), the first one (4) having a hydraulic wheel designed for transmitting kinetic energy to each of the multiphase effluent phases entering cell (1a-1b), and the second one (5), following the first, being an energy converting device designed for homogenizing the phases, transferring kinetic energy between the phases, entraining the lightest phase, converting kinetic energy into pressure and compressing the homogeneous effluent before it leaves the cell. All of the rotary parts of the cell are mounted on a common shaft (3) axially arranged inside a fixed housing (2) having an inlet and an outlet for the multiphase effluent.
Claims13
A cell for pumping a multiphase effluent, comprising:
- a fixed housing including an inlet and an outlet for the multiphase effluent, and
- a hydraulic wheel and an energy converting device successively mounted on a common shaft axially arranged inside the fixed housing;
- the hydraulic wheel including a first boss mounted on the common shaft and carrying blades, the blades forming, between the fixed housing and the first boss, channels, and the energy converting device including at least one helical wheel carried by a second boss which is mounted on the common shaft and which rotates in an energy homogenization and transfer chamber delimited by the fixed housing, a ratio of a section orthonormal to the axis of the energy homogenization and transfer chamber to a sum of sections orthonormal to the axis of the channels of the hydraulic wheel being 3 to 10.
A pump comprising at least one cell for pumping a multiphase effluent, the at least one cell comprising:
- a fixed housing including an inlet and an outlet for the multiphase effluent, and
- a hydraulic wheel and an energy converting device successively mounted on a common shaft axially arranged inside the fixed housing;
- the hydraulic wheel including a first boss mounted on the common shaft and carrying blades, the blades forming, between the fixed housing and the first boss, channels, and the energy converting device including at least one helical wheel carried by a second boss which is mounted on the common shaft and which rotates in an energy homogenization and transfer chamber delimited by the fixed housing, a ratio of a section orthonormal to the axis of the energy homogenization and transfer chamber to a sum of sections orthonormal to the axis of the channels of the hydraulic wheel being 3 to 10.
Dependencies are inferred from the claim text.