公开(公告)号：US20220259079A1

公开(公告)日：2022-08-18

申请号：US17733518

申请日：2022-04-29

Applicant: Natural Ocean Well Co.

Inventor： Robert A. Bergstrom ,  Michael M. Porter

IPC: C02F1/44 ,  B01D61/08 ,  B01D61/10

Abstract: A submersible water desalination apparatus includes a plurality of water separation membrane elements that when supplied with salinated water under pressure at a first depth will produce at least partially desalinated product water and concentrate or brine; a product water collector that receives product water from the membrane elements; and a permeate conduit that transports product water from the collector downwardly to a motorized submersible pump remotely located from the membrane elements and collector at a second depth greater than the first depth. The second depth is sufficiently greater than the first depth so that the height of a standing column of product water in the product water collector and permeate conduit between the membrane elements and the suction side of the pump maintains a net positive suction head that prevents inlet side cavitation during pump startup and operation.

公开(公告)号：US20220250951A1

公开(公告)日：2022-08-11

申请号：US17732419

申请日：2022-04-28

Applicant: Natural Ocean Well Co.

Inventor： Robert A. Bergstrom ,  Michael M. Porter

IPC: C02F1/44 ,  B01D61/02 ,  B01D61/08 ,  F04D29/58

Abstract: A submersible water desalination apparatus includes a plurality of water separation membrane elements, a product water collector that receives product water from the membrane elements, and a variable output motorized submersible pump having a suction side that receives product water from the product water collector and a discharge side that pumps product water away from the apparatus through a product water conduit for surface or subsurface use. At least a portion of the product water is used to lubricate and optionally also cool at least a portion of the pump, motor or both the pump and motor.