초록 ▼

A seafloor pump assembly is installed within a caisson that has an upper end for receiving a flow of fluid containing gas and liquid. The pump assembly is enclosed within a shroud that has an upper end that seals around the pump assembly and a lower end that is below the motor and is open. An educti

A seafloor pump assembly is installed within a caisson that has an upper end for receiving a flow of fluid containing gas and liquid. The pump assembly is enclosed within a shroud that has an upper end that seals around the pump assembly and a lower end that is below the motor and is open. An eduction tube has an upper end above the shroud within the upper portion of the caisson and a lower end in fluid communication with an interior portion of the shroud. The eduction tube causes gas that separates from the liquid and collects in the upper portion of the caisson to be drawn into the pump and mixed with the liquid as the liquid is being pumped.

대표청구항 ▼

The invention claimed is: 1. A sea floor pump apparatus for installation in a caisson having an inlet at an upper end for receiving a flow of fluid containing gas and liquid, the apparatus comprising:a shroud for location within the caisson, the shroud having an inlet at a lower end for receiving fl

The invention claimed is: 1. A sea floor pump apparatus for installation in a caisson having an inlet at an upper end for receiving a flow of fluid containing gas and liquid, the apparatus comprising:a shroud for location within the caisson, the shroud having an inlet at a lower end for receiving fluid flowing into the caisson;an electrical submersible pump assembly mounted within the shroud, the pump assembly including a centrifugal pump having an intake within the shroud downstream of the inlet of the shroud for drawing fluid from an interior of the shroud into the pump, the pump having a discharge pipe for discharging the fluid out of the caisson; andat least one eduction tube having an open upper end extending exterior of the shroud for location within an upper portion of the caisson and an open lower end in fluid communication with an interior portion of the shroud at or below the intake of the pump for drawing gas that collects in the caisson into the intake of the pump.