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Kaj je centrifugalna črpalka? Kako deluje?

V centrifugalne črpalke, kot z vsemi turbomachines, je glavni element, imenovano rotorja, vrtijo kotna hitrost okrog fiksne osi. Najpreprostejši obliki centrifugalni rotor dobimo z centralno (radialne) krila med dva vzporedna plošče. Poleg tega eden od diskov je zadebelitev okoli osi in povezuje milj. Kot je navedeno v tej sliki, tekočine delcev znotraj propelerja vrti okoli vrtilne osi s hitrostjo U = rωwith kolesa, na drugi strani, to premika po kolo z W-hitrost in listi. U dobi ime relativna hitrost okoljske hitrost, W.

 

Ko tekočino napolnjeno rotorja začne vrti okrog osi, se začne pojavljati od površinetekočine B pod vplivom centrifugalne sile. Tako tekočina absorbira iz površine e izpisati iz površinskih B.

 

Pretok videl z vrtljivim opazovalec z volanom razlikujejo od tok opazovalca v negibno okolje. Hitrost delcev v toku, po nepremičnih opazovalec v negibno okolju, je absolutno hitrost, hitrost relativno hitrost kolesa vidi na točki, kjer je opazovalec predenje s kolesa.

 

Absolutno hitrost je vektorska vsota C, W, ter vam hiter vozač. Z intenzivnostjo in smerjo W in hitrosti, tvorijo pravokotni rob. Ta prag predstavlja absolutno hitrost Diagonal pravokotnika. Robov pravokotnika kažejo relativno hitrost W in okolicehitrost, glede na jakost in smer nasilja. Torej, te tri hitrosti obliki trikotnika. V izračunih, neskončno število zelo tanka krila so delovala na misel. V tem primeru, je sprejemljivo, da so tok preje v celoti spremljati in da krme je enodimenzionalna. V primeru brez vpliva vhodnih, začetek krilu je tangenta na relativno hitrost vnosa. Drug izraz jerate W1, česar β1 kota z vnos zbornice črpalke, v isti smeri kot krilo profil. Prav takohitrost W2, česar β2 kota s koncem izstopa krilo, je v isti smeri. Smeri vložkom odvisna od smeri prvega elementa krilo v začetku in usmerjenost hitrost začetka ko vnosje zahteva, da opravi brez izkrivljanja in s tem preprečevanje izgube. V črpalke, rezilokonča pod kotom β2 W2 relativne hitrosti.

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