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Hydraulic axial thrust in multistage pumps - origins and solutions
Gantar, Marjan (Avtor), Florjančič, Dušan (Avtor), Širok, Brane (Avtor)

URLURL - Predstavitvena datoteka, za dostop obiščite http://asme.pinetec.com/fedsm2001/abstracts/FEDSM2001-18070.html Povezava se odpre v novem oknu

Izvleček
In the paper multistage pump problems in conjunction with axial thrust are presented. The entire investigation has been focused on the pump design concept with all impellers in series (facing in one direction) and is valid for barrel casing type as well for segmental type. The major part of the investigation has been experimental on one stage testing arrangement, using also Laser Doppler Anemometry (LDA) for determination of fluid rotation in the impeller side chamber. Numerical flow analysis (NFA) has been applied for some flow variants in order to verify whether a numerical approach could simulate the test results. The phenomenon of fluid rotation in side chambers and its effect on impeller hydraulic axial thrust has been determined for different leakage flow regimes. Influence of increased wear ring radial clearance on axial thrust has been analysed together with the solutions for hydraulic axial thrust reduction.

Jezik:Angleški jezik
Ključne besede:multistage pump, axial thrust, impeller side chamber, fluid rotation, static pressure distribution
Vrsta gradiva:Delo ni kategorizirano (r6)
Tipologija:1.08 - Objavljeni znanstveni prispevek na konferenci
Organizacija:FS - Fakulteta za strojništvo
Leto izida:2001
Št. strani:18070.pdf (8 str.)
UDK:621.22
COBISS.SI-ID:4465691 Povezava se odpre v novem oknu
Število ogledov:890
Število prenosov:275
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