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Hva er en sentrifugalpumpe? Hvordan virker det?

I sentrifugalpumper, som med alle turbomachines, det er en hovedelementet kalt pumpehjulet, rotere en vinkelhastighet rundt fast aksen. Den enkleste formen for centrifugal pumpehjulet oppnås ved sentralt (radiell) wings mellom to parallelle plater. Itillegg en av platene er jevning rundt aksen og kobler til en mil. Som nevnt i følgende figur, en flytende partikkel inne pumpehjulet roterer rundt rotasjonsaksen med hastigheten på U = rωwith hjulet, mens på den andre, den beveger seg ifølge hjulet med W-hastigheten og blader. U får navnet relative hastigheten av miljømessige hastighet, W.

 

Når en væskefylte impeller starter snurrende rundt aksen, begynner å dukke opp fravæske B overflaten under påvirkning av sentrifugalkreftene. Dermed skrives væskenabsorbert fra overflaten av E fra overflaten B.

 

Flyten sett av en roterende observatør med hjulet varierer fra flyten av observatøreni urørlig miljøet. Hastigheten av en partikkel flytte i flyten, ifølge en stillestående observatør i urørlig miljøet har absolutt hastighet, fart relative hastigheten hjulet ser påpunktet der en observatør er spinning med hjulet.

 

Absolutt fart er vectorial summen c, W, og du gjør. Med intensitet og retning W ogdu hastigheter danner de et rektangulært kanten. Denne terskelen representerer absolutt hastigheten på rektangelet Diagonal. Kantene av rektangelet viser relative hastigheten av W og ambient hastigheten, avhengig av intensiteten og retning av vold.Dermed danne disse tre hastigheter en trekant. I beregninger, er et uendelig antall svært tynn vingene handlet på tanken. I dette tilfellet er det akseptabelt at de flyt garn er fullt overvåket og at dette er endimensjonale. Ved slagfri inngang er starten påvingen tangens for de relative inndata. Med et annet uttrykk er W1, som gjør en β1vinkel med inntak Mysteriekammeret pumper, i samme retning som fløy profilen. Likeledes er W2 hastighet, noe som gjør en β2 vinkel med slutten av avkjørselen vingen, i samme retning. Retning av input avhengig retning av det første fløy elementeti posten og retningen på hastigheten for posten når posten forespørres utføres uten forvrengning, og dermed hindre tap. Pumper slutter bladet under β2 vinkel W2 relative hastigheten.

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