1. Saturated chav
Chav uas tsis tau kho cua sov yog hu ua saturated steam. Nws yog ib qho tsis muaj xim, tsis muaj ntxhiab, o thiab tsis-corrosive gas. Saturated steam muaj cov yam ntxwv hauv qab no.
(1) Muaj kev sib txuas lus ib-rau-ib qhov nruab nrab ntawm qhov kub thiab txias ntawm cov chav dej saturated, thiab tsuas muaj ib qho kev sib txawv ntawm lawv.
(2) Saturated steam yog yooj yim rau condense. Yog hais tias muaj cua sov poob thaum lub sij hawm kis tau tus mob, cov kua tee dej los yog kua pos huab yuav tsim nyob rau hauv lub chav, ua rau ib tug txo nyob rau hauv qhov kub thiab txias. Chav uas muaj cov kua dej los yog cov kua dej yog hu ua chav dej ntub. Hais lus nruj me ntsis, saturated vapor yog ntau dua los yog tsawg dua ob-theem kua uas muaj cov kua tee dej los yog kua pos huab, yog li cov xeev sib txawv tsis tuaj yeem piav qhia los ntawm tib lub xeev cov roj av sib npaug. Cov ntsiab lus ntawm cov kua tee dej los yog kua pos huab nyob rau hauv saturated chav qhia txog qhov zoo ntawm chav, uas yog feem ntau qhia los ntawm parameter ntawm dryness. Lub dryness ntawm chav yog hais txog qhov feem pua ntawm chav qhuav nyob rau hauv ib chav tsev ntim ntawm saturated chav, sawv cev los ntawm "x".
(3) Nws yog ib qho nyuaj rau kev ntsuas qhov ntws ntawm cov dej saturated, vim tias qhov ziab ntawm cov saturated chav tsis yooj yim los lav, thiab cov flowmeters tsis tuaj yeem txheeb xyuas cov dej ntws ntawm ob-theem, thiab qhov hloov pauv hauv chav siab yuav ua rau muaj kev hloov pauv hauv chav. ceev, thiab lwm yam yuam kev yuav tshwm sim nyob rau hauv cov lus qhia ntawm flowmeters . Yog li ntawd, nyob rau hauv chav ntsuas ntsuas, peb yuav tsum sim ua kom lub dryness ntawm chav ntsuas ntsuas kom ua tau raws li qhov yuav tsum tau ua, thiab siv cov kev ntsuas them nyiaj yog tias tsim nyog kom ua tiav qhov ntsuas raug.
2. Superheated chav
Chav yog ib qho nruab nrab tshwj xeeb, thiab feem ntau hais lus, chav hais txog chav superheated. Superheated chav yog ib qho chaw siv hluav taws xob, uas feem ntau yog siv los tsav lub tshuab hluav taws xob kom tig, thiab tom qab ntawd tsav lub tshuab hluav taws xob lossis lub tshuab hluav taws xob centrifugal ua haujlwm. Superheated chav yog tau los ntawm cua sov saturated chav. Nws muaj kiag li tsis muaj kua tee dej los yog kua pos huab, thiab belongs rau cov roj tiag tiag. Qhov ntsuas kub thiab qhov siab ntawm cov chav superheated yog ob qho kev ywj pheej, thiab nws qhov ceev yuav tsum tau txiav txim siab los ntawm ob qhov kev txwv no.
Tom qab lub superheated chav tau raug thauj mus ntev, nrog rau kev hloov ntawm kev ua haujlwm (xws li qhov kub thiab txias), tshwj xeeb tshaj yog thaum lub degree ntawm superheat tsis siab, nws yuav nkag mus rau saturation lossis supersaturation los ntawm lub xeev superheated vim qhov txo qis. ntawm tshav kub poob kub lub xeev, hloov mus rau hauv saturated chav los yog supersaturated chav nrog dej tee. Thaum lub saturated chav yog decompressed dheev thiab zoo heev, cov kua kuj yuav saturated chav los yog supersaturated chav nrog dej droplets thaum nws expands adiabatically. Lub saturated chav yog dheev decompressed heev, thiab cov kua kuj yuav hloov mus rau hauv superheated chav thaum nws expands adiabatically, yog li ua ib tug vapor-kua ob-theem ntws nruab nrab.