txoj cai
Kev thov cov kev sib thooj ntawm kev tshawb xyuas twj tso kua mis
1. Thaum txoj cai zoo sib xws tau thov rau tib lub tsheb kauj vab khiav ntawm kev ceev heev, nws tuaj yeem tau txais:
• Q1 / q2 = n1 / n2
• H1 / H2 = (N1 / N2) 2
• P1 / P2 = (N1 / N2) 3
• NPHS1 / NPY2 = (N1 / N2) 2
Piv txwv li:
Cov twj tso kua mis uas twb muaj lawm, tus qauv yog SLW50-200b, peb xav tau hloov SLW50-200b los ntawm 50 Hz txog 60 HZ.
(los ntawm 2960 rpm rau 3552 rpm)
Ntawm 50 HZ, lub impeller muaj txoj kab uas hla ntawm 165 hli thiab ib lub taub hau ntawm 36 m.
H60Hz / H50z = (N60hz / n50z) ² = (3552/2960) 2 = (1.2) ² = 1.44
Ntawm 60 hz, h60hz = 36 × 1.44 = 51.84m.
Txhawm rau suav, lub taub hau ntawm cov twj tso kua mis yuav tsum ncav cuag 52m ntawm 60Hz ceev.
Post lub sij hawm: Jan-04-2024