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- Screw_pump abstract "A screw pump is a positive-displacement (PD) pump that use one or several screws to move fluids or solids along the screw(s) axis. In its simplest form (the Archimedes' screw pump), a single screw rotates in a cylindrical cavity, thereby moving the material along the screw's spindle. This ancient construction is still used in many low-tech applications, such as irrigation systems and in agricultural machinery for transporting grain and other solids.Development of the screw pump has led to a variety of multiple-axis technologies where carefully crafted screws rotate in opposite directions or remains stationary within a cavity. The cavity can be profiled, thereby creating cavities where the pumped material is \"trapped\".In offshore and marine installations, a three-spindle screw pump is often used to pump high-pressure viscous fluids. Three screws drive the pumped liquid forth in a closed chamber. As the screws rotate in opposite directions, the pumped liquid moves along the screws' spindles.Three-spindle screw pumps are used for transport of viscous fluids with lubricating properties. They are suited for a variety of applications such as fuel-injection, oil burners, boosting, hydraulics, fuel, lubrication, circulating, feed and so on.Compared to centrifugal pumps, positive-displacement pumps have several advantages. The pumped fluid is moving axially without turbulence which eliminates foaming that would otherwise occur in viscous fluids. They are also able to pump fluids of higher viscosity without losing flow rate. Also, changes in the pressure difference have little impact on PD pumps compared to centrifugal pumps.The term ‘screw pump’ is often used generically.However, this generalization can be a pitfall as it fails to recognize the different product or ‘screw’ configurations, as well as the uses, advantages and design considerations for each. The design differences of each screw configuration and pump type make each suitable for different applications and handling fluids with varying characteristics.Each ‘screw pump’ operates on the same basic principle of a screw turning to isolate a volume of fluid and convey it. However, the mechanical design of each is different. The primary difference in one, two, three or multiple screw pumps.".
- Screw_pump wikiPageID "30438370".
- Screw_pump wikiPageLength "2478".
- Screw_pump wikiPageOutDegree "11".
- Screw_pump wikiPageRevisionID "690027445".
- Screw_pump wikiPageWikiLink Archimedes_screw.
- Screw_pump wikiPageWikiLink Category:Pumps.
- Screw_pump wikiPageWikiLink Category:Screws.
- Screw_pump wikiPageWikiLink Centrifugal_pump.
- Screw_pump wikiPageWikiLink Fuel_injection.
- Screw_pump wikiPageWikiLink Hydraulics.
- Screw_pump wikiPageWikiLink Irrigation.
- Screw_pump wikiPageWikiLink Lubrication.
- Screw_pump wikiPageWikiLink Oil_burner.
- Screw_pump wikiPageWikiLink Spindle_(tool).
- Screw_pump wikiPageWikiLink Viscosity.
- Screw_pump wikiPageWikiLinkText "Screw pump".
- Screw_pump wikiPageWikiLinkText "screw pump".
- Screw_pump wikiPageUsesTemplate Template:Reflist.
- Screw_pump wikiPageUsesTemplate Template:Unreferenced.
- Screw_pump subject Category:Pumps.
- Screw_pump subject Category:Screws.
- Screw_pump hypernym Pump.
- Screw_pump type Place.
- Screw_pump type Dynamic.
- Screw_pump type Hydraulic.
- Screw_pump type Machine.
- Screw_pump comment "A screw pump is a positive-displacement (PD) pump that use one or several screws to move fluids or solids along the screw(s) axis. In its simplest form (the Archimedes' screw pump), a single screw rotates in a cylindrical cavity, thereby moving the material along the screw's spindle.".
- Screw_pump label "Screw pump".
- Screw_pump sameAs Q1977125.
- Screw_pump sameAs Fizel.
- Screw_pump sameAs Vijzel_(waterschroef).
- Screw_pump sameAs m.0g5smxh.
- Screw_pump sameAs Skruvpump.
- Screw_pump sameAs Q1977125.
- Screw_pump sameAs 螺杆泵.
- Screw_pump wasDerivedFrom Screw_pump?oldid=690027445.
- Screw_pump isPrimaryTopicOf Screw_pump.