Roller Profiling for Generating the Screw of a Pump with Progressive Cavities

Progressive cavity pumps are used in industry for the circulation of high viscosity fluids, such as crude oil and petroleum products, sewage sludge, oils, salt water, and wastewater. Also known as single screw pumps, these pumps are composed of a single rotor which has the shape of a rounded screw,...

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Bibliographic Details
Published in:Inventions (Basel) 2021-06, Vol.6 (2), p.34
Main Authors: Baroiu, Nicuşor, Moroşanu, Georgiana-Alexandra, Teodor, Virgil-Gabriel, Oancea, Nicolae
Format: Article
Language:English
Subjects:
Algorithms
Crude oil
helical surfaces
Holes
incremental pumps
Petroleum products
Plastic deformation
profiling of generating tools
Pumps
Rollers
Rotors
Saline water
Sewage sludge
Stators
Wastewater
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Summary:Progressive cavity pumps are used in industry for the circulation of high viscosity fluids, such as crude oil and petroleum products, sewage sludge, oils, salt water, and wastewater. Also known as single screw pumps, these pumps are composed of a single rotor which has the shape of a rounded screw, which moves inside a rubber stator. The stator has an double helical internal surface which, together with the helical surface of the rotor, creates a cavity that moves along the rotor. The movement effect of the cavity inside the stator is the movement of the fluid with a constant flow and high pressure. In this paper, an algorithm for profiling the rollers for generating the helical surface of the pump rotor with progressive cavities is proposed. These rollers are constituted as tools for the plastic deformation of the blank (in case the pump rotor is obtained by volumetric deformation) or for its superficial hardening.
ISSN:2411-5134
2411-5134
DOI:10.3390/inventions6020034