Lub nqus tsev ntawm lub tshuab nqus tsev yog dab tsi?
Feb 20, 2019| Lub nqus tsev ntawm lub tshuab nqus tsev yog dab tsi?
IKS PVD, peb tseem siv ntawm PVD lub cav nqus tsev, hu rau peb tam sim no, iks.pvd@foxmail.com
Cov pa roj carbon tsawg
Tus nqi ntawm cua pumped yog ib qho kev ntsuas ntawm qhov ceev ntawm lub tshuab nqus tsev twj. Cov chav nyob yog L / S thiab m cubed / h. Yuav tsum ua kom tsis txhob raug nqi. Nws tsis yog yooj yim to taub yog vim li cas lub tshuab nqus tsev nqus nrog cov huab cua ntau heev yog qhov yooj yim kom tau qhov khoom nqus tsev uas peb xav tau, thaum lub tshuab nqus tsev twj ywm nrog cov cua tsawg tsawg los yog tsis muaj peev xwm tau txais cov khoom nqus tsev uas peb xav tau. Pipeline lossis lub thawv yog ib txwm tsis tuaj yeem ua rau tsis muaj huab cua nyob, thiab cov huab cua loj ua rau cov cua ntws los ntawm kev txo qis qis nqus, nws yog ib qho yooj yim uas kos tau qhov zoo ntawm qhov nqus nqus.
Nqus tsev kawm ntawv qib siab
Cuam tshuam cov teeb meem thinness ntawm cov pa roj hauv lub tshuab nqus tsev, feem ntau yog hais tias yog cov nqi siab. Nqus tus nqi yog qhov tseem ceeb ntawm qhov muaj nqis ntawm qhov kev ntsuas no qis tshaj qhov atmospheric siab, qhov nqi uas tau muab los ntawm lub rooj los kuj paub tias yog cov lus rooj, kev lag luam kuj paub tias txwv tsis pub muaj qhov siab, qhov tseeb daim ntawv, muaj lub tshuab nqus tsev thiab cov nqus sib xyaw ob hom lus. Tus nqi nyeem ntawm lub tshuab nqus tsev vacuum yog hu ua qhov degree nqus tsev. Nqus tsev atmospheric siab - tsis siab (atmospheric siab feem ntau yog 101325Pa, qhov txwv tsis ceev ntawm dej ntiv nplhaib nqus cov twj tso kua mis 3300Pa; Ntau tshaj qhov siab ntawm cov voom nqus tsev twj (kwv yees 10Pa)
Nqus tsev
Raws li, nws txhais tau hais tias tsis muaj dab tsi nyob rau hauv qhov ntim. (hauv kev tseeb, tsis muaj lub tshuab nqus dej tiag.) Lub tshuab nqus tsev yog feem ntau txhais tias yog ib qho uas nyob hauv ib lub thawv ntim qis tshaj qhov siab phem atmospheric siab (101, 325 Pa).
Kev ruaj ntseg thiab tus txheeb ze nqus
Txwv tsis pub muaj kev ntxhov siab
Lub siab ntsig txog kev sib raug zoo yog txo qis tshaj qhov ntsuas siab tshaj li ntawm qhov muaj zog atmospheric. Cuam tshuam qhov tseeb nqi ntawm qhov siab qhov qis tshaj qhov siab ntawm qhov athospheric. Raws li cua hauv lub khob ntim quav, lub siab nyob hauv lub khob ntim hauv qab ntim qis dua lub siab sab nraum lub khob. Thaum koj sau nws raws li qhov siab los yog qhov chaw siab, koj yuav tsum muab ib daim ntawv rho tawm ntawm nws, uas txhais tau hais tias lub siab hauv lub khob ntim qis dua sab nraud.
Qhov kawg tsis siab
Qhov siab tag nrho yog qhov siab npaum li cas siab hauv lub ntsuas siab yog tshaj qhov theoretical vacuum (theoretical nqus siab qhov nqi yog 0Pa). Nws sib piv lub twj nqus siab ntawm lub xeev theoretical. Vim yog cov kev txwv ntawm kev siv tshuab, peb yeej tsis pom lub siab nrog rau qhov nqus plawg ntawm 0Pa. Qhov nqus ntawm lub tshuab nqus tsev yog qhov siab tshaj qhov theoretical nqus tus nqi. Yog li ntawd, cov ntsiab lus tsis muaj tseeb, tsis muaj kev kos npe rau hauv pem hauv ntej ntawm nws.