Rau lub phaj kub exchanger, nyob rau hauv tus tsim thiab siv cov txheej txheem yuav yeej ib txwm ntsib lub phaj kub exchanger uas tsis muaj efficiency, uas muaj xws li ib tug xov tooj ntawm yam tseem ceeb, los mus txiav txim, los txhim kho lub tshav kub hloov efficiency ntawm lub phaj kub exchanger, los ntawm tus tsim. point of view, plaub lub ntsiab lus hauv qab no yog qhov tseem ceeb tshaj plaws:
1, txhim kho lub tshav kub hloov coefficient ntawm lub phaj
Raws li cov phaj kub exchanger corrugation tuaj yeem ua rau cov kua dej me me los ua kom muaj kev kub ntxhov (Reynolds tus naj npawb ntawm 150), yog li koj tuaj yeem tau txais qhov siab dua qhov kub hloov coefficient, qhov kub hloov pauv coefficient thiab cov qauv geometric ntawm cov phaj corrugation. thiab lub xeev ntws ntawm qhov nruab nrab. Lub waveform ntawm lub phaj muaj xws li herringbone, tiaj tus, kheej kheej, thiab lwm yam.
2, txo cov thermal tsis kam ntawm cov av txheej
Lub ntsiab tseem ceeb ntawm kev txo cov thermal tsis kam ntawm fouling txheej ntawm lub tshav kub exchanger yog los tiv thaiv phaj fouling. Phaj fouling thickness ntawm 1 hli, lub tshav kub hloov coefficient yog txo los ntawm 10 feem pua. Yog li ntawd, yuav tsum tau ua tib zoo saib xyuas cov dej zoo ntawm ob sab ntawm cov khoom siv hluav taws xob sib txawv ntawm qhov kub thiab txias, tiv thaiv cov phaj scaling, thiab tiv thaiv kev sib txuas ntawm cov khib nyiab hauv dej ntawm lub phaj.
3, kev siv lub siab thermal conductivity phaj
Cov khoom siv phaj tuaj yeem xaiv los ntawm austenitic stainless hlau, titanium alloy, tooj liab alloy, thiab lwm yam.. Stainless hlau muaj thermal conductivity, thermal conductivity ntawm li 14.4 W / (mK), siab zog, zoo stamping kev kawm, tsis yooj yim rau oxidized, tus nqi qis dua titanium alloy thiab tooj liab alloy, feem ntau siv rau hauv cov cua sov engineering, tab sis nws lub peev xwm los tiv thaiv corrosion ntawm chloride ions tsis zoo.
4, Txo cov thickness ntawm lub phaj
Tus tsim thickness ntawm lub phaj tsis muaj dab tsi ua nrog nws cov corrosion kuj, thiab lub siab-bearing peev xwm ntawm lub tshav kub exchanger. Phaj thickening, tuaj yeem txhim kho lub peev xwm ntawm cov cua kub exchanger. Kev siv herringbone phaj ua ke, daim hlau uas nyob ib sab inverted rau ib leeg, corrugated kev sib cuag nrog ib leeg, tsim kom muaj ib tug loj ntom, tusyees faib fulcrum, phaj ces kaum solitaire thiab ntug sealing qauv tau maj mam txhim kho, kom lub phaj kub exchanger muaj. muaj peev xwm ua tau zoo heev.
