Hauv cov khoom siv papermaking, qhov tshwj xeeb ntawm "Yankee dryers" tsis tshua tau piav qhia hauv "kilograms". Xwb, tsis xws li txoj kab uas hla (xws li, 1.5m, 2.5m), ntev, ua hauj lwm siab, thiab cov khoom thickness yog ntau dua. Yog tias "3kg" thiab "5kg" ntawm no yog hais txog kev ua haujlwm siab ntawm Yankee tshuab ziab khaub ncaws (unit: kgf / cm², piv txwv li, kilogram-force ib square centimeter), lawv qhov sib txawv tseem ceeb yog tshwm sim hauv cov hauv qab no:
- Qhov kub ua haujlwm sib txawv
Cov cua sov ntawm Yankee tshuab ziab khaub ncaws feem ntau yog tso siab rau cov chav saturated 通入 sab hauv, thiab lub zog siab yog ncaj qha ntsig txog qhov kub thiab txias (raws li cov yam ntxwv ntawm chav dej):
Qhov kub ntawm saturated chav ntawm 3kgf / cm² (kwv yees li 0.3MPa) yog hais txog 133 ℃;
Qhov kub ntawm saturated chav ntawm 5kgf / cm² (kwv yees li 0.5MPa) yog hais txog 151 ℃.
Qhov kub ntawm qhov sib txawv ncaj qha cuam tshuam rau kev ziab ntawm daim ntawv: qhov siab dua (thiab yog li qhov kub thiab txias), ntau qhov kub hloov mus rau daim ntawv ib lub sij hawm, uas ua rau kom qhuav sai sai. Qhov no ua rau nws tsim nyog rau cov ntaub ntawv uas yuav tsum tau ua kom qhuav kom qhuav (xws li cov ntaub so ntswg thiab cov tshuab ntawv ceev).
- Txawv Drying Efficiency thiab Energy Consumption
Kev ziab kom qhuav: Lub 5kgf / cm² siab Yankee tshuab ziab khaub ncaws, nrog rau qhov kub thiab txias, muaj qhov sib txawv ntawm qhov kub ntawm daim ntawv, ua rau kom muaj cua sov sai dua. Nws tuaj yeem evaporate ntau dua noo noo nyob rau tib lub sijhawm thiab hloov mus rau siab dua cov ntawv tshuab khiav nrawm.
Cov nqi siv hluav taws xob: Chav ntawm 5kgf / cm² siab yuav tsum muaj ntau dua boiler tso zis, ua rau muaj zog siv zog ntau dua (xws li thee, natural gas, thiab lwm yam). Chav ntawm 3kgf / cm² siab muaj qis zog noj, ua rau nws haum rau cov xwm txheej uas ziab ceev tsis tseem ceeb (xws li cov tshuab ntawv qis thiab cov ntawv tuab).
- Hom ntawv thiab txheej txheem tsim nyog
3kgf / cm² siab Yankee tshuab ziab khaub ncaws: Nrog rau qhov kub thiab txias, nws yog qhov tsim nyog rau cov ntaub ntawv kub-rhiab heev (xws li qee cov ntaub ntawv waxed, cov ntaub ntawv nrog cov txheej txheem uas ua rau kub deformation) los yog cov ntaub ntawv tuab uas yuav tsum tau ua kom qhuav kom tsis txhob muaj kev sib tsoo thiab tawg (xws li cov ntawv ntawv, cov ntawv tuab kraft).
5kgf / cm² siab Yankee tshuab ziab khaub ncaws: Nrog rau qhov kub siab dua, nws yog qhov tsim nyog rau daim ntawv so ntswg (xws li ntawv xov xwm, ntawv sau), kab lis kev cai cov ntaub ntawv uas tau ua nyob rau hauv high speeds, thiab lwm yam.
- Cov kev xav tau sib txawv rau cov khoom siv thiab kev nyab xeeb
Txawm hais tias ob qho tib si 3kgf / cm² thiab 5kgf / cm² siab yog rau cov hlab ntsha uas tsis tshua muaj siab (feem ntau, qhov tsim lub siab ntawm Yankee tshuab ziab khaub ncaws yog siab dua li kev ua haujlwm siab nrog cov npoo kev nyab xeeb), siab dua txhais tau hais tias yuav tsum muaj ntau dua rau cov khoom siv zog, sealing kev ua tau zoo, thiab phab ntsa thickness ntawm Yankee tshuab ziab khaub ncaws:
Cov khoom siv lub tog raj kheej ntawm 5kgf / cm² siab Yankee tshuab ziab khaub ncaws (xws li cam khwb cia hlau, hlau cam khwb cia hlau) yuav tsum ua kom ruaj khov nyob rau hauv siab dua. Kev ua kom raug ntawm vuam seams, flange seals, thiab lwm yam yog nruj dua kom tsis txhob muaj cov pa tawm.
Ob leeg yuav tsum tau ua raws li cov cai tswj kev nyab xeeb ntawm lub nkoj, tab sis 5kgf / cm² siab Yankee tshuab ziab khaub ncaws yuav muaj kev tshuaj xyuas ntau zaus thiab nruj dua (xws li kev ntsuas hydrostatic).
Cov ntsiab lus
Lub 3kgf / cm² thiab 5kgf / cm² siab Yankee tshuab ziab khaub ncaws tseem ceeb kho qhov kub thiab txias ua haujlwm los ntawm qhov sib txawv ntawm qhov sib txawv. Qhov sib txawv tseem ceeb yog nyob rau hauv kev ziab kom qhuav, tus nqi siv hluav taws xob, thiab hom ntawv tsim nyog. Kev xaiv yuav tsum raug txiav txim siab raws li daim ntawv tshuab ceev, hom ntawv yam ntxwv, kev siv nyiaj siv hluav taws xob, thiab lwm yam. Lub siab siab tsis tas yuav zoo dua; nws yuav tsum tau ua kom haum cov txheej txheem ntau lawm.
Post lub sij hawm: Aug-12-2025