Ipayipi eligoqiwe uhlobo lwepayipi elinomsele ngemuva kokugoqwa. Okuvamile: ipayipi eligoqiwe eliyindilinga, ipayipi eligoqiwe eliyindilinga, njll. libizwa ngokuthi ipayipi eligoqiwe ngoba umsele osobala ungabonakala engxenyeni yepayipi. Lolu hlobo lwepayipi lungenza uketshezi lugeleze odongeni lwalezi zakhiwo ezigoqiwe, lukhiqize izindawo zokuhlukanisa ukugeleza, futhi lwakhe ama-vortices anobukhulu nobukhulu obuhlukene. Yila ma-vortices ashintsha isakhiwo sokugeleza koketshezi futhi andise i-turbulence eduze kodonga, ukuze kuthuthukiswe i-coefficient yefilimu yokudlulisa ukushisa eguquguqukayo yoketshezi nodonga.

a. I-rolling groove tube i-rolling groove tube iwukugoqa umsele ovundlile noma umsele ojikelezayo one-pitch ethile kanye nokujula okuvela ngaphandle kwe-circular tube ngokwezidingo zomklamo, bese yakha ubambo oluvundlile noma ubambo olujikelezayo oluphumayo odongeni lwangaphakathi lwe-tube, njengoba kuboniswe ku-Figure 1. Umsele odongeni lwangaphandle kanye nokuvela odongeni lwangaphakathi lwe-pipe kungathuthukisa ukudluliselwa kokushisa koketshezi kuzo zombili izinhlangothi ze-pipe ngesikhathi esisodwa. Ifaneleka kakhulu ekuqiniseni ukudluliselwa kokushisa koketshezi lwesigaba esisodwa e-pipe kanye nokuthuthukisa ukuminyana komusi kanye nokudluliselwa kokushisa okubilayo kwe-liquid film koketshezi olungaphandle kwe-pipe ku-heat exchanger.

b. Ipayipi eligoqekile elijikelezayo line-single pass kanye ne-multi pass spiral kanye nezinye izinhlobo. Ngemva kokwakheka, kuba nomsele one-angle ethile ejikelezayo ngaphandle kwepayipi lomsele ojikelezayo, futhi kukhona izimbambo eziqondile ezihambisanayo epayipini. Umsele ojikelezayo akufanele ujule kakhulu. Uma umsele ujula, ukumelana kokugeleza kukhulu, i-angle ejikelezayo iba nkulu, futhi i-coefficient yefilimu yokudlulisa ukushisa yepayipi eligoqekile iba nkulu. Uma uketshezi lungajikeleza emseleni, inani lezintambo alinawo umthelela omkhulu ekudlulisweni kokushisa.

c. Ipayipi eligoqekile lakhiwa ngokugoqa okuqhubekayo kwesigaba esishintshashintshayo. Ingaphandle lepayipi kukhona umsele ogoqekile ohlanganisa i-axis yepayipi ku-90 °, kanti ingaphakathi lepayipi liyi-convex rib egoqekile. Ngemva kokuba ukugeleza koketshezi kudlule embanjeni ogoqekile epayipini, akukhiqizi ukugeleza okujikelezayo, kodwa kukhiqiza amaqembu e-axial vortex kulo lonke ingxenye, ukuze kuqiniswe ukudluliswa kokushisa. Ipayipi eligoqekile liphinde libe nomthelela omkhulu wokuqinisa ekudlulisweni kokushisa okubilayo kwefilimu koketshezi olusepayipini, okungakhuphula i-coefficient yokudluliswa kokushisa okubilayo izikhathi ezingu-3-8.