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Ce este o pompă centrifugă? Cum funcţionează?

În pompe centrifuge, ca cu toate turbomachines, este un element principal, numit rotor, o viteza unghiulară în jurul axei fixă de rotaţie. Cea mai simplă formă de rotor centrifugal este obţinut prin central (radial) aripile între două discuri paralele. În plus,unul dintre discuri este îngroşarea în jurul axei şi se conectează la o milă. Indicată înfigura de mai jos, o particulă de fluid din interiorul rotorului se roteşte în jurul axei de rotaţie cu viteza U = rωwith volan, în timp ce pe de altă parte, acesta se mută în funcţie de roata cu W-viteza şi lasă. U devine numele de viteza relativă a mediului viteza, W.

 

Atunci când un rotor de lichid-umplut începe filare în jurul axei, ea începe să iasă lasuprafaţa lichidului B sub influenţa forţelor centrifuge. Astfel, lichidul absorbită la suprafaţa E este tipărit la suprafaţă B.

 

Fluxul de un observator rotaţie cu roata va diferi de fluxul de observator în mediul nemişcat. Viteza unei particule care se deplasează în flux, în funcţie de un observatorstaţionare în mediu nemişcat, are viteza absolută, viteza viteza relativă care roata vede la punctul în cazul în care un observator este de filare cu roata.

 

Viteza absolută este suma vectorială a C, W, şi ai viteze. Cu intensitate şi direcţia deW şi viteze, ei formează o margine dreptunghiulară. Acest prag reprezintă viteza absolută diagonalei dreptunghiului. Marginile dreptunghiului indica viteza relativă deW şi ambient viteza de tine, în funcţie de intensitatea şi direcția de violenţă. Astfel, aceste trei viteze formează un triunghi. În calcule, un număr infinit de aripi foarte subţiri sunt a crezut. În acest caz, este acceptabil ca firele fluxul complet sunt monitorizate şi că hrana este unul dimensional. În caz de non-impact de intrare, începutul aripa este tangent la viteza relativă de intrare. Cu o altă expresie, rata W1, ceea ce faceun unghi de β1 cu aportul camera pompelor, este în aceeaşi direcţie ca profil de aripa. De asemenea, viteza W2, care face un unghi de β2 cu capătul de ieșire aripa, este în aceeaşi direcţie. Direcţia de intrare se depinde direcţia de primul element de aripa în intrarea şi orientarea viteza de intrare atunci când intrarea este solicitată să seefectueze fără distorsiuni şi, astfel, prevenind pierderile. În pompe, lama se încheie sub unghiul β2 W2 viteza relativă.

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