Ma valve olumikizira ndi gawo lofunikira pamafakitale osiyanasiyana ndipo ali ndi ntchito zambiri komanso zabwino zambiri. Kuchokera pakuwongolera kuyenda mpaka kupereka kutsekedwa kodalirika, ma valve amapulagi amagwira ntchito yofunika kwambiri poonetsetsa kuti machitidwe osiyanasiyana akuyenda bwino. Mu bukhuli lathunthu, tiwona mwatsatanetsatane kusinthasintha kwa mavavu a pulagi, ndikuwunika ntchito zawo, mitundu, ndi gawo lofunikira lomwe amagwira m'mafakitale osiyanasiyana.
Ntchito ndi ntchito
Ma valve olumikizira amapangidwa kuti aziwongolera kutuluka kwamadzi kapena gasi m'mapaipi. Mapangidwe ake osavuta koma ogwira mtima amakhala ndi pulagi ya cylindrical kapena conical yomwe imazungulira mkati mwa thupi la valve kuti ilamulire kuyenda. Njirayi imayendetsa bwino kayendedwe kake ndipo imapereka kutseka kodalirika pakafunika.
Chimodzi mwazabwino zazikulu za mavavu a pulagi ndi kusinthasintha kwawo pakugwira ntchito zosiyanasiyana, kuphatikiza mankhwala owononga, ma abrasive slurries ndi mpweya wothamanga kwambiri. Izi zimawapangitsa kukhala oyenera mafakitale monga mafuta ndi gasi, kukonza mankhwala, kuyeretsa madzi ndi kupanga magetsi.
Mitundu ya mavavu a pulagi
Pali mitundu yambiri ya mavavu a pulagi, iliyonse yopangidwa kuti ikwaniritse zofunikira zenizeni komanso momwe zimagwirira ntchito. Izi zimaphatikizapo ma valve opaka mafuta, ma valve osapaka mafuta komanso ma eccentric plug valves. Mavavu a pulagi opaka mafuta amakhala ndi jakisoni wothira mafuta kuti achepetse kugundana ndi kuvala, pomwe mavavu osapaka mafuta amapangidwa kuti azigwiritsidwa ntchito pomwe kuipitsidwa kwamafuta kumadetsa nkhawa. Ma valve a eccentric plug amakhala ndi pulagi yotsekera yomwe imapereka chisindikizo cholimba komanso kuchepetsa kuvala pakamagwira ntchito.
Kusinthasintha kwa mavavu a pulagi kumakulitsidwanso ndi kugwiritsa ntchito zida zosiyanasiyana zamapulagi monga zitsulo, mapulasitiki ndi elastomers, zomwe zimalola kuti zigwirizane ndi mitundu yosiyanasiyana ya media komanso magwiridwe antchito.
Kuchita mbali yofunika kwambiri m'mafakitale osiyanasiyana
M'makampani amafuta ndi gasi, ma valve amapulagi amagwiritsidwa ntchito kuwongolera kutuluka kwamafuta osakhazikika, gasi wachilengedwe, ndi zinthu zoyengedwa. Kukhoza kwawo kuthana ndi kupanikizika kwakukulu ndi kutentha kwapamwamba kumawapangitsa kukhala abwino kwa mapulogalamu apamwamba, apakati ndi apansi.
M'mafakitale opangira mankhwala, ma valve amapulagi amagwiritsidwa ntchito posamalira mankhwala owononga komanso slurries abrasive. Zomangamanga zake zolimba komanso zosagwira dzimbiri zimawapangitsa kukhala oyenererana ndi zovuta zomwe zimapezeka m'malo opangira mankhwala.
Malo opangira madzi amagwiritsa ntchito ma stopcocks kuti azitha kuyendetsa madzi, mankhwala ndi madzi oipa. Mphamvu zake zodalirika zotsekera komanso kukana kwa dzimbiri zimapangitsa kuti ikhale gawo lofunikira pamakina opangira madzi.
Popanga magetsi, ma valve amapulagi amagwiritsidwa ntchito m'makina a nthunzi ndi madzi kuti azitha kuyendetsa bwino kayendedwe ka madzi a boiler, madzi ozizira ndi makina ogawa nthunzi.
Pomaliza
Kusinthasintha kwa ma valve a pulagi kumawapangitsa kukhala ofunikira m'mafakitale osiyanasiyana, kupereka kuwongolera kodalirika komanso kutsekeka kwa ntchito zosiyanasiyana zofalitsa ndi ntchito. Kaya mukugwiritsa ntchito mankhwala owononga m'mafakitale opangira mankhwala kapena kuwongolera kayendedwe ka gasi m'malo opangira mafuta ndi gasi, mavavu amapulagi amagwira ntchito yofunika kwambiri powonetsetsa kuti mafakitale akugwira ntchito bwino komanso mosatekeseka. Ndi ntchito zawo zosiyanasiyana komanso zomangamanga zolimba, ma valve amapulagi amakhalabe gawo lofunikira pamakampani owongolera madzi.
Nthawi yotumiza: Apr-20-2024
