Lub hydraulic poob ntawm lub twj tso kua mis centrifugal suav nrog kev poob, vortex poob thiab kev sib txhuam poob raws txoj kev.
centrifugal twj tso kua mis
1 、 Kev poob siab
Txhua lub twj tso kua mis muaj nws tus kheej tsim ntws. Thaum cov khoom siv ua haujlwm raws li tus qauv tsim, cov kua dej ntws tawm ntawm qhov nkag nkag mus rau hauv lub impeller raws cov hniav, yog li tsis muaj kev cuam tshuam nrog cov hniav. Ib yam li ntawd, lub qhov hluav taws xob ua kua dej tsis cuam tshuam nrog lub plhaub twj tso kua mis, yog li qhov ua tau zoo yog siab. Txawm li cas los xij, thaum cov dej ntws tawm ntawm qhov kev tsim qauv, cov dej ntws kev taw qhia yuav sib txawv ntawm cov hniav kev taw qhia thiab ua rau muaj kev cuam tshuam.
2 、 Vortex poob
Nyob rau hauv lub twj tso kua mis, lub overflow seem yog ib tug complex spatial seem. Thaum cov kua hla ntawm no, qhov khiav ceev me me dhau lawm thiab cov kev taw qhia yuav hloov tas li, yog li ntawd vortex poob yuav inevitably tshwm sim. Tsis tas li ntawd, qhov poob vortex kuj tseem yuav nce ntxiv thaum muaj cov ces kaum ntse, burrs thiab cov dej tuag nyob rau saum npoo av.
3 、 Kev sib txhuam poob ntawm txoj kev
Vim yog qhov roughness ntawm qhov dej ntws ntawm lub twj tso kua mis thiab cov viscosity ntawm cov kua, qhov kev sib txhuam tsis zoo yuav tshwm sim thaum cov kua ua luam dej. Qhov poob yog qhia los ntawm cov qauv hauv qab no;
Hm=AQ2 Where a - coefficient.
Kos rau ntawm lub coordinates yog ib tug parabola nrog lub hauv paus chiv keeb raws li lub vertex.
Ntawm cov hydraulic poob ntawm ntau qhov chaw, hydraulic poob nyob rau hauv lub impeller yog loj, accounting rau ib nrab ntawm tag nrho cov poob; Qhov thib ob yog qhov hydraulic poob ntawm kev tig ntawm cov lus qhia vane, suav txog li 1/4 ntawm tag nrho cov hydraulic poob, thaum qhov seem 1/4 hydraulic poob yog los ntawm lub impeller mus rau phau ntawv qhia vane, qhov diffusion ib feem ntawm phau ntawv vane. , thiab rov qab qhia vane rau lub impeller inlet.
Txhawm rau txo qis hydraulic poob ntawm lub twj tso kua mis, kev hloov ntawm txhua ntu ntawm cov kua dej yuav tsum maj mam thiab qhov ceev yuav tsum tsim nyog. Tsim nyog impeller, qhia hom vane thiab inlet thiab qhov hluav taws xob teeb lub kaum sab xis yuav tsum raug xaiv. Tsis tas li ntawd, qhov kawg ntawm qhov ntws ntawm qhov chaw yuav tsum tau txhim kho.