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Papermaking enterprises nyob rau hauv cheeb tsam Northeast muaj ib lub sij hawm rwb thaiv tsev ntawm ze li ntawm 200 hnub nyob rau hauv ib xyoos rau sab nraum zoov pulp muab pipelines. Keeb kwm, feem ntau cov tuam txhab feem ntau siv cov cua kub cua sov los thaiv cov kav dej. Txij li thaum qhov kub ntawm cov cua kub cua sov yog ntau dua qhov kub ntawm cov khoom siv thauj khoom, cov cua sov chav yuav qhuav tawm cov ntaub so ntswg hauv cov kav dej, yog li cuam tshuam rau kev siv cov kav dej. Thiab yog tias kev tswj xyuas qhov rwb thaiv tsev tsis zoo, cov yeeb nkab condensate rhuab los ntawm cov cua sov sab nraum zoov yuav khov, txawm tias cuam tshuam rau kev tsim khoom.
Raws li cov laj thawj saum toj no, ntau thiab ntau cov ntawv zeb siv cov tshuab hluav taws xob tsis siv neeg hluav taws xob thiab rwb thaiv tsev rau kev hloov pauv. Qhov no tsis siv neeg hluav taws xob cua sov thiab rwb thaiv tsev txheej txheem tuaj yeem muab (0 ~ 60 ℃ xaiv tau) cov khoom siv hluav taws xob xa hluav taws xob, yog li tshem tawm cov ziab ntawm cov tawv nqaij los ntawm cov cua kub ntau dhau thiab qhov tshwm sim corrosion tshwm sim los ntawm qhov kub sib txawv hauv cov kav dej, uas muaj txiaj ntsig zoo ntawm kev lag luam. .
Kev tswj tus kheej qhov kub tsis tshua muaj hluav taws xob cua sov daim kab xev yog cov khoom siv hluav taws xob cua sov uas tuaj yeem hloov kho qhov cua sov. Nws siv cov khoom siv hluav taws xob siab tshaj plaws thiab cov ntaub ntawv rwb thaiv tsev polymer, thiab dhau los ntawm cov txheej txheem tsim tshwj xeeb, nws ua tiav qhov kub thiab txias. Kev tswj tus kheej qhov kub thiab txias hluav taws xob cua sov daim kab xev muaj qhov zoo ntawm qhov pib me me tam sim no, kev ua haujlwm zoo nco, qis qis txhua xyoo attenuation tus nqi, thiab lub neej ua haujlwm ntev. Nws yog tshwj xeeb tshaj yog haum rau lub sijhawm uas yuav tsum tau tswj qhov kub thiab txias.
Nyob rau hauv cov txheej txheem papermaking, cov kav dej pulp yog nquag ua kom khov rau lub caij ntuj no, cuam tshuam rau cov txheej txheem tsim khoom. Kev tswj tus kheej qis-kub hluav taws xob cua sov cables tuaj yeem ntsia tau ze rau ntawm phab ntsa sab nrauv ntawm cov yeeb nkab kom muab cov cua sov txuas ntxiv mus rau cov yeeb nkab, them nyiaj rau cov cua kub poob ntawm cov yeeb nkab, thiab xyuas kom meej tias cov kua nplaum yuav tsis khov vim qhov kub thiab txias thaum lub sij hawm. kev thauj mus los. Tsis tas li ntawd, tus kheej-kub qis-kub hluav taws xob cua sov cables tuaj yeem kho thiab tswj qhov kub thiab txias raws li qhov xav tau tiag tiag los xyuas kom meej tias cov pulp raug thauj mus rau hauv qhov ntsuas kub zoo.