Pump system and method for delivering multi-phase mixtures
AssigneeSulzer Pumpen AG
InventorJohann Guelich
Life of this patent
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Abstract
A pump system (1) is provided for the pumping of multiphase mixtures which includes a pumping apparatus (3) for multiphase mixtures with at least one liquid phase and at least one gaseous phase. The pumping apparatus (3) contains one or more axial compression stages with one respective axial impeller each and one or more pumping stages with a respective one radial impeller each which are arranged adjoining the axial compression stage or stages, wherein the pump system (1) additionally includes a separator (2) at the inlet side of the pumping apparatus (3) to separate a portion of the gaseous phase and wherein the pumping apparatus (3) is configured for delivery heads larger than 50 m.
Claims17
A pump system for pumping of multiphase mixtures, comprising:
- a pumping apparatus for multiphase mixtures with at least one liquid phase and at least one gaseous phase, wherein the pumping apparatus comprises:
- one or more axial compression stages, each of the axial compression stages comprising an axial or semi-axial impeller;
- and
- one or more pumping stages, each of the pumping stages comprising a radial impeller, wherein the pumping stages adjoin the axial compression stages;
- a separator at an inlet side of the pumping apparatus to separate the gaseous phase or a portion thereof;
- and
- a gas discharge line connected to the separator, wherein the system is configured for the gaseous phase or the portion thereof to exit the apparatus through the gas discharge line without any additional pump;
- and
- a return line at an output side of the pumping apparatus to return multiphase mixture into the separator.
A method for pumping a multiphase mixture with at least one liquid phase and at least one gaseous phase, the method comprising:
- pumping the multiphase mixture utilizing a pumping apparatus, the pumping apparatus comprising:
- one or more axial compression stages, each of the axial compression stages comprising an axial or semi-axial impeller;
- one or more pumping stages, each of the pumping stages comprising a radial impeller;
- wherein the pumping stages adjoin the axial compression stages;
- a separator at an inlet side of the pumping apparatus;
- and
- a gas discharge line connected to the separator;
- separating the gaseous phase or a portion thereof in the separator;
- allowing the gaseous phase or the portion thereof to exit the apparatus through the gas discharge line without using any additional pump;
- and
- leading the multiphase mixture back into the separator via a return line when a filling level in the separator has fallen below a minimum value.
Dependencies are inferred from the claim text.