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 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 lub nkoj loj loj cav lub tog raj kheej liner dej, zawv zawg roj txias thiab hauv nruab nrab txias. Nws tau tsim kho zoo heev rau ntau xyoo lawm. Tag nrho cov tuam txhab loj tau tsom mus rau yuav ua li cas txhawm rau txhim kho cov cua sov hloov pauv ntawm marine phaj kub exchanger.
Txij li cov phaj qauv ntawm marine phaj kub exchanger ncaj qha cuam tshuam qhov kev ua tau zoo ntawm lub tshav kub exchanger. Nyob rau hauv daim ntawv no, peb yuav tham txog cov kev cuam tshuam ntawm ib tug series ntawm phaj tsis nyob rau hauv kev ua tau zoo ntawm marine phaj kub exchanger uas twb muaj lawm, thiaj li yuav muab ib co kev siv rau kev tshawb fawb ntxiv.
Marine phaj kub exchanger nyob rau hauv thiaj li yuav nws serviceability, nruab nrab ntawm cov phaj yog U-hom kev twb kev txuas, rau countercurrent txoj kev, ob sab ntawm cov kua dej txias thiab dej kub los yog nplua roj. Daim ntawv ntawm cov cua sov hloov ntawm daim hlau tuaj yeem ua kom pom raws li cov phab ntsa tiaj tus hloov pauv. Raws li tus nqi ntws ntawm cov kua hauv txoj hauv kev ntws ntawm marine phaj kub exchanger yog txiav txim siab los ntawm kev sib pauv cua sov ntawm lub ntsiab cav diesel roj los yog lub tog raj kheej liner dej, qhov tseem ceeb ntawm txoj kev tshawb no tuaj yeem muab tso rau ntawm daim ntawv phaj.
Dab tsi yog qhov tseem ceeb cuam tshuam rau kev hloov hluav taws xob ntawm cov phaj phaj
Phaj thickness
Los ntawm kev qhia txog kev hloov pauv cov coefficient, qhov me me ntawm lub thickness ntawm phaj δ, qhov zoo dua qhov kev hloov pauv ntawm cov hluav taws xob ntawm cov khoom siv hluav taws xob, cov txheej txheem marine phaj kub exchanger qauv, thov kom kub exchanger phaj thickness hauv {{0}}.6 ~ 0.8mm, kev lag luam thinnest titanium phaj phaj tau mus txog 0.4mm. phaj thiab tom qab ntawd ua kom nyias los txhim kho cov cua sov hloov pauv yuav tsis pom tseeb, tab sis qhov tseem ceeb tshaj plaws yog kom txo cov nqi ntawm kev txo cov khoom siv, tab sis cov phaj nyias nyias yuav raug txo qis tom qab cov xovxwm tom qab lub zog yuav yog. txo qis.
Clip kaum ntawm lub phaj
Marine phaj kub exchanger los txhim kho tus nqi k ntawm ib qho ntawm txoj kev tseem ceeb yog los txhim kho cov phaj ntawm ob sab ntawm qhov chaw ntawm cov cua kub hloov mus rau nruab nrab cov kua dej cuam tshuam. Cov phaj ntawm marine phaj kub exchanger feem ntau yog machined rau hauv herringbone corrugated daim hlau. Rau herringbone corrugated phaj, qhov loj ntawm lub herringbone lub kaum sab xis muaj kev cuam tshuam zoo rau kev hloov hluav taws xob thiab dej tsis kam. Lub phaj nrog loj herringbone lub kaum sab xis muaj siab hloov pauv coefficient thiab ua kua dej siab; ntawm qhov tsis sib xws, lub phaj nrog me me herringbone lub kaum sab xis muaj cov cua kub hloov pauv qis thiab tsis kam. 120 degree herringbone lub kaum sab xis muaj qhov zoo tshaj plaws tshav kub hloov pauv, thiab lub me me los yog loj lub kaum sab xis yog, lub tshav kub hloov efficiency yuav qis dua, thiab ib txwm lub hauv paus txias thiab lub tog raj kheej liner dej txias txais lub phaj nrog 120 degree herringbone kaum sab xis thiaj li ua tiav. qhov siab tshaj plaws kub hloov cov nyhuv.
Flow tus nqi ntawm daim hlau
Cov kua dej ntws nruab nrab ntawm cov phiaj, cov dej ntws tsis sib xws, tus nqi ntws hauv txoj kab tseem ceeb, kwv yees li 4 mus rau 5 npaug ntawm qhov nruab nrab ntws, qhov ntws ntawm txhua qhov ntws hauv cov txheej txheem tsis sib xws. Txhawm rau ua kom cov kua dej ntws nruab nrab ntawm daim hlau, tawm ntawm lub xeev turbulence tag nrho, nws yog qhov tsim nyog los siv qhov nruab nrab ntws ntawm cov phaj 0.3 ~ 0.8 m / s. Nyob rau hauv cov ntaub ntawv ntawm tsis kam poob tso cai rau coj ib tug loj tus nqi, nyob rau hauv thiaj li yuav txhim kho lub convective tshav kub hloov membrane coefficient, yog li txo cov tshav kub hloov chaw, txhim kho tshav kub hloov efficiency. Feem ntau nyob rau hauv raws li qhov muab txaus tus nqi los xaiv qhov tsim nyog ib daim ntawm phaj cheeb tsam thiab nam piv, yog li ntawd txoj kev xaiv yog qhov tseem ceeb ntawm kev tswj tus nqi ntws ntawm lub phaj.
(1) Cov qauv hloov hluav taws xob ntawm cov hluav taws xob hloov hluav taws xob tau txheeb xyuas kom paub cov ntsiab lus tseem ceeb cuam tshuam rau lub tshav kub hloov coefficient k ntawm lub tshav kub exchanger: lub tshav kub hloov coefficient, phaj thickness δ. Cov yam ntxwv ntev ntawm cov phaj thiab Reynolds tus naj npawb ntawm cov phaj, Re, txiav txim siab qhov loj ntawm cov cua sov hloov zaj duab xis coefficient.
(2) Txoj kev tshawb fawb tam sim no ntawm phaj kub exchanger phaj (phaj thickness, phaj clamp lub kaum sab xis thiab inter-phaj txaus tus nqi) rau marine siv yog tsom xam tshwj xeeb.
(3) Tom qab kev tshuaj xyuas, nws yuav tsum tau txhim kho thiab ua kom zoo dua cov marine phaj kub exchanger raws li cov hauv paus ntsiab lus ntawm kev hloov hluav taws xob thiab cov tshuab ua kua dej hauv kev ua haujlwm tom ntej.
