Marine phaj kub exchanger raws li cov khoom siv hluav taws xob tseem ceeb ntawm lub nkoj ua lub luag haujlwm tseem ceeb hauv kev nyab xeeb ntawm tag nrho lub nkoj. Nws cov qauv yog qhov yooj yim piv rau lwm yam khoom siv, feem ntau yog tsim los ntawm cov ntsia hlau, phaj siab, puag, phaj thiab lwm yam. Nws yog dav siv los ua liner dej, lubricating roj txias thiab central txias rau lub ntsiab cav ntawm cov nkoj loj. Nws tau tsim kho zoo heev hauv ob peb lub xyoo dhau los. Cov tuam txhab loj tau tsom mus rau yuav ua li cas txhawm rau txhim kho cov txiaj ntsig ntawm kev sib pauv cua sov ntawm marine phaj kub exchangers.
Vim tias cov qauv phaj ntawm marine phaj kub exchanger ncaj qha cuam tshuam qhov kev ua tau zoo ntawm lub tshav kub exchanger. Tsab ntawv xov xwm no yuav tham txog kev cuam tshuam ntawm cov phaj tsis sib xws ntawm cov khoom siv marine phaj kub exchanger uas twb muaj lawm nyob rau hauv kev ua tau zoo ntawm lub tshav kub exchanger, thiaj li yuav muab ib co siv rau kev tshawb fawb ntxiv.
Rau kev ruaj ntseg ntawm marine phaj kub exchangers, daim hlau txuas nrog U-puab, uas yog ib tug counter-tam sim no txoj kev, thiab cov kua ntawm ob sab yog dej txias thiab dej kub los yog lubricating roj. Daim ntawv sib pauv cua sov ntawm daim hlau tuaj yeem ua kom pom raws li cov phab ntsa vaj huam sib luag. Txij li thaum cov kua dej ntws hauv cov channel ntawm marine phaj kub exchanger yog txiav txim siab los ntawm kev sib hloov ntawm cov cua kub ntawm lub ntsiab cav diesel cav lubricating roj los yog liner dej, qhov tseem ceeb ntawm txoj kev tshawb no tuaj yeem ua rau ntawm daim ntawv phaj.
Dab tsi yog qhov tseem ceeb cuam tshuam rau kev hloov hluav taws xob ntawm lub phaj
1.Plate thickness
2. Lub kaum sab xis ntawm phaj
3.Flow tus nqi ntawm daim hlau
Phaj thickness
Nws tuaj yeem pom los ntawm qhov kev qhia ntawm cov cua sov hloov coefficient tias qhov me me ntawm cov thickness δ ntawm lub phaj, qhov zoo dua qhov kub hloov pauv ntawm cov khoom siv hluav taws xob. Tus txheej txheem rau marine phaj kub exchangers hais tias lub phaj thickness ntawm lub tshav kub exchanger yog 0.6 ~ 0.8 hli. Lub thinnest titanium phaj hauv kev lag luam tau mus txog 0.4 hli. Thinning lub phaj yuav tsis pom tseeb dhau los txhim kho cov txiaj ntsig ntawm kev sib pauv cua sov, tab sis lub hom phiaj tseem ceeb yog txo tus nqi thiab txo cov khoom siv, tab sis lub zog ntawm cov phaj nyias yuav raug txo qis tom qab nias.
Lub kaum sab xis ntawm phaj
Ib qho ntawm txoj hauv kev tseem ceeb kom nce tus nqi ntawm k hauv marine phaj kub exchangers yog kom nce qib ntawm cov kua dej cuam tshuam rau ntawm qhov chaw ntawm qhov nruab nrab ntawm cov cua sov ntawm ob sab ntawm lub phaj. Cov phaj ntawm marine phaj kub exchangers feem ntau ua tiav rau hauv herringbone corrugated daim hlau. Rau daim ntawv herringbone corrugated, qhov loj ntawm lub kaum sab xis ntawm lub herringbone muaj kev cuam tshuam zoo rau kev hloov hluav taws xob thiab dej tsis kam. Cov phaj nrog cov kaum pob txha loj muaj cov cua kub hloov pauv coefficient thiab cov kua dej ua haujlwm siab; conversely, daim hlau nrog me me herringbone ces kaum muaj tsawg tshav kub hloov coefficient thiab kuj. Lub kaum sab xis ntawm 120 ° herringbone muaj qhov zoo tshaj plaws tshav kub hloov pauv. Qhov me me los yog loj dua lub kaum sab xis, qhov qis dua cov cua sov hloov efficiency. Lub hauv nruab nrab txias txias thiab liner dej txias siv 120 ° herringbone daim hlau kom ua tiav qhov siab tshaj plaws Lub tshav kub hloov pauv.
Flow tus nqi ntawm daim hlau
Tus nqi ntawm cov kua dej ntws ntawm cov phaj tsis sib xws. Tus nqi ntws ntawm txoj kab tseem ceeb yog li 4 mus rau 5 npaug ntawm qhov nruab nrab ntws. Tus nqi ntws ntawm txhua qhov ntws channel hauv cov txheej txheem tsis sib xws. Txhawm rau ua kom cov kua dej ntws nruab nrab ntawm daim phiaj, tawm ntawm lub xeev muaj kev kub ntxhov, nws raug nquahu kom siv qhov nruab nrab ntws nrawm ntawm daim phiaj 0.3-0.8m / s. Siv tus nqi loj dua thaum qhov kev poob qis yog tso cai los ua kom cov cua sov hloov pauv cov yeeb yaj kiab coefficient, yog li txo qhov chaw sib pauv cua sov thiab txhim kho qhov kev sib pauv cua sov. Feem ntau xaiv qhov tsim nyog ib leeg-thooj cheeb tsam thiab nam piv ntawm phaj raws li tus nqi txaus. Txoj kev xaiv no yog ib qho tseem ceeb hauv kev tswj cov dej ntws ntawm cov phiaj.
(1) Los ntawm cov qauv hloov hluav taws xob ntawm cov hluav taws xob hloov hluav taws xob, ntau yam tseem ceeb cuam tshuam rau cov hluav taws xob hloov hluav taws xob coefficient k ntawm cov hluav taws xob hloov hluav taws xob tau txheeb xyuas: kub hloov cov yeeb yaj kiab coefficient α thiab phaj thickness δ. Cov yam ntxwv ntev ntawm daim hlau thiab Reynolds tus naj npawb Re ntawm daim hlau txiav txim siab qhov loj ntawm lub tshav kub hloov zaj duab xis coefficient α.
(2) Kev tshawb fawb tam sim no ntawm marine phaj kub exchanger daim hlau (phaj thickness, phaj lub kaum sab xis thiab inter-phaj ntws tshaj tawm) yog soj ntsuam kom meej.
(3) Tom qab kev tshuaj xyuas, nws yog qhov yuav tsum tau txhim kho thiab ua kom zoo ntawm marine phaj kub exchanger raws li cov hauv paus ntsiab lus tseem ceeb ntawm kev hloov hluav taws xob thiab cov tshuab ua kua dej hauv kev ua haujlwm tom ntej.
