Unlock instant, AI-driven research and patent intelligence for your innovation.

Method and apparatus for lubricating a screw pump system

a screw pump and screw technology, applied in the direction of rotary/oscillating piston pump components, machines/engines, liquid fuel engines, etc., can solve the problems of increasing the cost and maintenance of the screw pump system, requiring additional components and maintenance, and using the various parts of the twin screw pump system to lubricate the various parts,

Inactive Publication Date: 2010-11-04
GENERAL ELECTRIC CO
View PDF4 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Further, in the example the system used to lubricate the various parts of the twin screw pump system, including bearings coupled to the rotor screws, may require additional components and maintenance.
This separate lubrication system adds costs and maintenance to the screw pump system.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and apparatus for lubricating a screw pump system
  • Method and apparatus for lubricating a screw pump system
  • Method and apparatus for lubricating a screw pump system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019]FIG. 1 is a schematic diagram of a screw pump system 10 that may be provided with a production platform 12 to pump a fluid for processing, storage and / or transport. As depicted, the screw pump system 10 may be connected to the production platform 12 via a conduit or riser 14 that may be used to route a process fluid to the platform. The process fluid may be a multiphase fluid, such as raw petroleum based fluid from a sub-sea drilling rig. In addition, the screw pump system 10 may be located on a sea or ocean floor 16, wherein the screw pump system 10 pumps the process fluid to a production platform floating on an ocean surface 18, or anchored to the sea floor. As depicted, the screw pump system 10 may be located a distance 20 from the production platform 12, wherein the pump is used to create the pressure and force needed to pump the process fluid to the surface 18. In another embodiment, the screw pump system 10 may be located in a factory or chemical plant and may be configu...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A pump system includes inlet chambers, an outlet chamber, and rotors disposed inside the inlet chambers and the outlet chamber to pump a process fluid from the inlet chambers to the outlet chamber and to direct the process fluid to a separator. A gear chamber is configured to receive a portion of the process fluid from the separator. First and second sets of pump bearings are coupled to the rotors and lubricated by the portion of the process fluid flowing from the gear chamber. A conduit is configured to direct the portion of the process fluid from the pump bearings back to the gear chamber. Some of the portion of the process fluid lubricating the pump bearings is permitted to leak to the inlet chambers. Additional process fluid is continually added to the portion of the process fluid to compensate for fluid leaking to the inlet chambers.

Description

BACKGROUND OF THE INVENTION[0001]The embodiments disclosed herein relate generally to a screw pump, and more particularly to lubrication and process fluid management of a multiphase screw pump.[0002]Screw pumps are rotary, positive displacement pumps that use two or more screws to transfer high or low viscosity fluids or fluid mixtures along an axis. A twin screw pump typically has two intermeshing counter-rotating rotor screws. The volumes or cavities between the intermeshing screws and a liner or casing transport a specific volume of fluid in an axial direction around threads of the screws. As the screws rotate the fluid volumes are transported from an inlet to an outlet of the pump. In some applications, twin screw pumps are used to aid in the extraction of oil and gas from on-shore and sub-sea wells. Twin screw pumps lower the back pressure on the reservoir and thereby enable greater total recovery from the reservoir.[0003]In many cases, a twin screw pump may be used to pump a m...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): F04C15/00F04C2/14
CPCF01C17/02F04C2/16F04C11/001F04C13/004F04C2210/62F04C13/008F04C15/0088F04C2210/24F04C13/005F04C11/00F04C13/00F04C15/00
Inventor KOTHNUR, VASANTHANDERSON, DAVID DELOYDDREXEL, MICHAEL V.STEEN, THOMASGHASRIPOOR, FARSHADDEO, HRISHIKESH VISHVAS
Owner GENERAL ELECTRIC CO