Grooved yeeb nkab yog ib hom yeeb nkab nrog zawj tom qab dov.Common: ncig grooved yeeb nkab, oval grooved yeeb nkab, thiab lwm yam. nws yog lub npe hu ua grooved yeeb nkab vim qhov pom tseeb zawj tuaj yeem pom nyob rau hauv seem ntawm cov yeeb nkab.Cov yeeb nkab zoo li no tuaj yeem ua rau cov kua dej ntws los ntawm cov phab ntsa ntawm cov qauv turbulence, tsim cov chaw sib cais, thiab tsim cov vortices nrog ntau qhov sib txawv thiab ntau thiab tsawg.Nws yog cov vortices uas hloov cov qauv ntws ntawm cov kua dej thiab ua rau muaj kev kub ntxhov nyob ze ntawm phab ntsa, txhawm rau txhim kho cov cua sov hloov cov yeeb yaj kiab coefficient ntawm cov kua thiab phab ntsa.

ib.Rolling groove tube dov groove raj yog dov ib kab kab rov tav los yog kauv zawj nrog ib qho suab thiab qhov tob ntawm sab nraud ntawm lub voj voog raws li qhov tsim nyog, thiab tsim cov kab rov tav kab rov tav los yog kauv tav ntawm sab hauv phab ntsa ntawm lub raj. , raws li pom nyob rau hauv daim duab 1. Qhov zawj ntawm phab ntsa sab nrauv thiab cov protrusion ntawm cov phab ntsa sab hauv ntawm cov yeeb nkab tuaj yeem txhim kho cov cua sov hloov ntawm cov kua dej ntawm ob sab ntawm cov yeeb nkab tib lub sijhawm.Nws yog tshwj xeeb tshaj yog tsim nyog rau ntxiv dag zog rau lub tshav kub hloov ntawm ib-theem kua nyob rau hauv cov yeeb nkab thiab txhim khu lub chav condensation thiab kua zaj duab xis boiling cua sov hloov ntawm cov kua sab nraum cov yeeb nkab nyob rau hauv lub tshav kub exchanger.

b.Kauv grooved yeeb nkab muaj ib zaug dhau thiab ntau kis kauv thiab lwm yam.Tom qab tsim, muaj ib tug zawj nrog ib tug kauv lub kaum sab xis ntawm lub kauv zawj yeeb nkab, thiab muaj cov convex tav tav nyob rau hauv cov yeeb nkab.Cov spiral zawj yuav tsum tsis txhob tob dhau.Qhov tob ntawm qhov zawj yog, qhov ntau dua qhov dej tsis kam, qhov ntau dua qhov kauv lub kaum sab xis, thiab qhov ntau dua cov cua sov hloov cov yeeb yaj kiab coefficient ntawm lub grooved raj.Yog tias cov kua dej tuaj yeem tig tau raws li qhov zawj, cov xov tooj ntawm cov xov tsis muaj kev cuam tshuam me ntsis rau kev hloov cua sov.

c.Cov yeeb nkab cross-grooved yog tsim los ntawm qhov sib txawv ntawm qhov sib txawv ntawm qhov txuas txuas txuas ntxiv.Sab nraud ntawm cov yeeb nkab yog ib qho transverse zawj sib tshuam cov yeeb nkab axis ntawm 90 °, thiab sab hauv ntawm cov yeeb nkab yog transverse convex tav.Tom qab cov kua dej ntws dhau los ntawm lub convex tav nyob rau hauv cov yeeb nkab, nws tsis tsim spiral flow, tab sis tsim axial vortex pawg nyob rau hauv tag nrho cov seem, thiaj li mus ntxiv dag zog rau lub tshav kub hloov.Tus ntoo khaub lig threaded raj kuj muaj kev txhawb zog zoo rau cov yeeb yaj kiab kub kub hloov ntawm cov kua hauv lub raj, uas tuaj yeem ua rau kom kub kub hloov coefficient ntawm 3-8 zaug.