Yuav Ua Li Cas Txhim Kho Kev Ua Haujlwm ntawm Phaj Kub Exchangers?

Qhov zaus ntawm kev siv cov khoom siv hluav taws xob yog qhov siab heev. Kev ua kom cov cua sov hloov coefficient ntawm cov khoom siv hluav taws xob tuaj yeem ua tau zoo tsuas yog txhim kho lub tshav kub hloov coefficient ntawm cov khoom siv hluav taws xob los ntawm ib txhij ua kom cov hluav taws kub hloov coefficient ntawm ob sab ntawm lub phaj, txo cov thermal tsis kam ntawm fouling txheej, xaiv cov phaj siab. thermal conductivity, thiab txo cov thickness ntawm daim hlau.
1. Vim yog cov nyhuv ripple ntawm phaj kub exchangers, cov kua yuav tsim turbulence ntawm tus nqi qis, uas ua rau ntau dua deg tshav kub hloov coefficients. Qhov chaw tshav kub hloov pauv coefficient yog cuam tshuam nrog cov qauv geometric ntawm lub phaj ripple thiab lub xeev ntws ntawm qhov nruab nrab. Lub waveform ntawm lub phaj muaj xws li herringbone, ncaj, kheej kheej, thiab lwm yam. Tom qab xyoo ntawm kev tshawb fawb thiab kev sim, nws tau pom tias herringbone daim hlau nrog daim duab peb sab corrugated cross-sections muaj ntau dua deg tshav kub hloov coefficients, thiab lub kaum sab xis loj ntawm lub ripples, qhov siab dua qhov ntws nrawm ntawm qhov nruab nrab hauv cov phaj sib txuas sib txuas, thiab qhov loj dua qhov kub hloov pauv coefficient.
Lub ntsiab tseem ceeb ntawm kev txo cov thermal tsis kam ntawm fouling txheej nyob rau hauv tshav kub exchangers yog los tiv thaiv phaj fouling. Thaum lub thickness ntawm lub phaj fouling yog 1 hli, lub tshav kub hloov coefficient txo los ntawm 10%. Yog li ntawd, nws yog ib qho tsim nyog yuav tsum tau ua tib zoo saib xyuas cov dej zoo ntawm ob sab kub thiab txias ntawm cov khoom siv hluav taws xob los tiv thaiv phaj fouling thiab tiv thaiv impurities los ntawm adhering rau daim hlau hauv dej. Qee chav cua sov ntxiv cov tshuaj rau cov cua sov nruab nrab los tiv thaiv dej tub sab thiab corrosion ntawm cov khoom hlau. Yog li ntawd, nws yog ib qho tsim nyog yuav tsum tau xyuam xim rau cov dej zoo thiab cov nplaum uas yuav ua rau cov impurities paug rau cov phaj kub exchanger. Yog tias muaj cov kua dej tsis huv hauv dej, yuav tsum siv lub lim dej tshwj xeeb rau kev kho mob. Thaum xaiv cov tshuaj, nws raug nquahu kom xaiv cov tshuaj uas tsis muaj kuab lom.
3. Cov khoom siv ntawm lub phaj tuaj yeem yog stainless hlau, titanium alloy, tooj liab alloy, thiab lwm yam. Stainless hlau muaj thermal conductivity zoo, nrog rau thermal conductivity ntawm li 14.4 W / (m • K), siab zog, zoo stamping kev ua tau zoo, thiab tsis yooj yim oxidized. Nws tus nqi qis dua titanium thiab tooj liab alloys, thiab nws yog feem ntau siv rau hauv cov cua sov engineering, tab sis nws lub peev xwm los tiv thaiv chloride ion corrosion tsis zoo.