SUBSEA PRESSURE COMPENSATING PUMP APPARATUS

摘要

The present disclosure relates, according to some embodiments, to fluid pump apparatuses. A fluid pump apparatus may comprise a suction compensator, a housing compensator, and a pump. A suction compensator may comprise an ambient fluid compensator, an ambient fluid bladder, and a spring compensator, wherein the spring compensator comprises a first separator partitioning an internal volume of the spring compensator into a first suction fluid chamber and a compensation fluid chamber. A housing compensator may comprise a second separator partitioning an internal volume of the housing compensator into a second suction fluid chamber and a lubrication fluid chamber. The compensation fluid chamber may be in fluid communication with the suction compensator. The first suction fluid chamber may be in fluid communication with the second suction fluid chamber. A pump may comprise a housing defining a lubrication fluid compartment in fluid communication with the lubrication fluid chamber.

主权项

1. A fluid pump apparatus, the apparatus comprising:
a suction compensator comprising:
an ambient fluid compensator defining a first internal volume,
an ambient fluid bladder disposed within the first internal volume,the ambient fluid bladder in fluid communication with ambient fluid,the ambient fluid bladder partitioning the first internal volume into a bladder volume and a residual volume;a spring compensator comprising:
a second internal volume,a first separator partitioning the second internal volume into a first suction fluid chamber and a compensation fluid chamber,a spring disposed within the first suction fluid chamber,wherein compensation fluid chamber is in fluid communication with the residual volume of the suction compensator; a housing compensator comprising:
a third internal volume,a second separator partitioning the third internal volume into a second suction fluid chamber and a lubrication fluid chamber,wherein the second suction fluid chamber is in fluid communication with the first suction fluid chamber of the suction compensator; a pump comprising:
a housing defining a first lubrication fluid compartment,the first lubrication fluid compartment in fluid communication with the lubrication fluid chamber of the housing compensator,the first lubrication fluid compartment connectable with a suction circuit and a discharge circuit.