Tivalvu ta gedenati valve ta phaphataniswi tirhisiwa tanihi swiwitsi ku lawula mpimo wa ku khuluka eka ku tirhisiwa ka tiphayiphi. I ntiyiso leswaku ka ha ri na tindlela eka endlelo ro hlawula ti valve ta maphaphatani na ti valve ta gede.
Eka netiweke ya tiphayiphi ta mphakelo wa mati, leswaku ku hungutiwa vuenti bya ku funengetiwa ka misava ya tiphayiphi, dyayimeta yo angarhela ya phayiphi leyikulu yi hlomisiwile hi valve ya phaphatani, naswona loko ku enta ka ku funengetiwa ka misava ku nga ri ka nkoka, ringeta ku hlawula valve ya gede, kambe ntsengo wa valve ya gede ya xihlawulekisi lexi fanaka wu le henhla ku tlula nxavo wa valve ya phaphatani. Loko kuri layini ya demarcation ya caliber, ndzhawu yin’wana na yin’wana yifanele ku tekeriwa enhlokweni kuya hi xiyimo xin’wana na xin’wana. Hi ku ya hi langutelo ra ku tirhisiwa ka malembe ya khume lama hundzeke, ku tsandzeka ka valve ya phaphatani ku le henhla ku tlula kavalve ya gede, hikwalaho swa fanela ku nyikela nyingiso ku ndlandlamuxa ndhawu yo tirhisa valve ya gede loko swiyimo swi pfumela.
Emalembeni ya sweswinyana, vaendli votala va ti valve ta laha kaya va endle no tekelela ti soft seal gate valves, letingana swihlawulekisi leswi landzelaka kutlula ti wedge kumbe parallel double gate valves ta ndhavuko:
Ku...valvemiri na bonnet ya soft seal gate valve swi hoxiwa hi precision casting method, leyi vumbiwaka hi nkarhi wun’we, kahle kahle a yi endliwi hi muchini, naswona a yi tirhisi ti sealing copper rings, ku hlayisa tinsimbi leti nga riki ta nsimbi.
A ku na mugodi ehansi kavalve ya gede ya xisirhelelo xo olova, ku hava ku hlengeletiwa ka slag, na mpimo wa ku tsandzeka kavalve ya gedeku pfula na ku pfala swi le hansi.
Soft seal lined valve plate yifana hi vukulu naswona yi cincana swinene.
Hikwalaho, valve ya gede ya soft seal yi ta va xivumbeko lexi bindzu ra mphakelo wa mati ri tsakelaka ku xi amukela. Eka nkarhi wa sweswi, diameter ya soft seal gate valve leyi endliwaka e China i 1500mm, kambe diameter ya vaendli votala yile xikarhi ka 80-300mm, naswona kahari na swiphiqo swotala eka maendlelo ya vumaki bya laha kaya. Xiphemu xa nkoka xa valve ya gede ya soft seal i valve plate leyi nga na rhaba, naswona swilaveko swa xithekiniki swa valve plate leyi nga na rhaba swi le henhla, naswona a hi vaendli hinkwavo va matiko mambe lava nga swi fikelelaka, naswona yi tala ku xaviwa no hlanganisiwa kusuka efemeni hi khwalithi yo tshembheka.
Xibokisana xa nati ya koporo xa xisirhelelo xo olova xa le kayavalve ya gedeyi nghenisiwile no hayekiwa ehenhla ka plate ya valve ya lining ya rhaba, kufana na xivumbeko xa valve ya gede, naswona lining ya rhaba ya valve plate ya olova ku yi rhurhumela hikokwalaho ka active friction ya nut block. Eka soft seal gate valve ya khamphani ya matiko mambe, copper nut block yi nghenisiwa eka ram leyi nga na layini ya rhaba kuva yi endla hinkwaswo, leswi hlulaka swihoxo leswinga laha henhla, kambe concentricity ya nhlanganelo wa xifunengeto xa valve na miri wa valve swile henhla.
Kambe loko u pfula no pfala valve ya gede ya soft seal, ayi fanelanga ku pfariwa ngopfu, ntsena loko mbuyelo wo yimisa mati wufikeleriwile, handle ka sweswo aswi olovi ku pfula kumbe ku rhurhumela eka lining ya rhaba. Muendli wa ti valve, eka xikambelo xa ntshikelelo wa valve, ku tirhisiwa ka torque wrench ku lawula degree ya ku pfala, tani hi khamphani ya mati vafambisi va valve na vona vafanele ku landzelela ndlela leyi yo pfula naku pfala.
Hi kwihi ku hambana exikarhi ka matirhiselo yati valve ta phaphataninati valve ta gede?
Kuya hi ntirho na matirhiselo ya valve ya gede na valve ya phaphatani, ku tiya ka ku khuluka ka valve ya gede i kutsongo, matirhelo yo pfalela i ya kahle, hikuva tlhelo ro khuluka ra plate ya valve ya gede na medium i angle yo yima, loko valve ya gede yi nga ri endhawini ya yona eka switch ya plate ya valve, medium leyi scouring plate ya valve yi endla leswaku plate ya valve yi rhurhumela, naswona swa olova ku onha seal ya valve ya gede.
Butterfly valve, leyi tivekaka tani hi flap valve, i xivumbeko xo olova xa regulating valve, leyi nga tirhisiwaka eka vulawuri bya on/off ya low-pressure pipeline medium butterfly valve yi kombetela eka xiphemu xo pfala (disc kumbe butterfly plate) tani hi disc, leyi rhendzelekaka ku rhendzela valve shaft ku fikelela ku pfuriwa naku pfala muxaka wa valve, valve yinga tirhisiwa ku lawula ku khuluka ka tinxaka tohambana hambana ta moya wofana na, . mati, mpfula, switirhisiwa swo hambana hambana leswi onhaka, ndzhope, oyili, nsimbi ya mati na switirhisiwa swa radioactive. Ngopfu ngopfu yi tlanga xiave xo tsema na ku throttling eka phayiphi. Xiphemu xo pfula na ku pfala valve ya phaphatani i butterfly plate leyingana xivumbeko xa disc, leyi rhendzelekaka eka axis ya yona eka miri wa valve, leswaku yita fikelela xikongomelo xo pfula naku pfala kumbe ku lulamisa.
Butterfly plate yi fambisiwa hi nsinya wa valve, naswona loko yi jika 90°, yinga hetisa ku pfuleka naku pfala. Hiku cinca deflection angle ya phaphatani, flow rate ya medium yinga lawuriwa.
Swiyimo swa ntirho na xikarhi:Valve ya phaphataniyi lulamerile ku fambisa tiphayiphi to hambana ta swihangalasamahungu swa mati leswi onhaka na leswi nga onhiki eka tisisiteme ta vunjhiniyara to fana na tifurni, gasi ya malahla, gasi ya ntumbuluko, gasi ya petroliyamu leyi nga mati, gasi ya doroba, moya wo hisa na wo titimela, ku n’okisiwa ka tikhemikhali na ku tumbuluxiwa ka gezi nsirhelelo wa mbango, mphakelo wa mati yo aka na ku humesa mati, na swin’wana, naswona yi tirhisiwa ku lawula na ku tsema ku khuluka ka swihangalasamahungu.
Gate valve (gate valve) i xiphemu xo pfula no pfala xa gede, tlhelo ra ku famba ka gede ri perpendicular eka tlhelo ra fluid, gate valve yinga pfuriwa ntsena hiku hetiseka naku pfala, ku nga tsaki ka ti parameters ta nyangwa swihambanile, hi ntolovelo 5°, loko mahiselo yale xikarhi yanga ri ehenhla, i 2°52′. Ku antswisa ku endliwa ka yona naku endla ku hambuka ka sealing surface angle eka maendlelo yo lulamisa, muxaka lowu wa ram wuvuriwa elastic ram.
Loko ku...valve ya gedeyi pfariwile, ndzhawu yo pfalela yinga titshega ntsena hi ntshikelelo wale xikarhi kuva yi pfala, leswivulaka leswaku yitshembela ntsena hi ntshikelelo wale xikarhi ku tshikelela ndzhawu yo pfalela ya ram kuya eka xitulu xa valve eka tlhelo rin’wana ku tiyisisa ku pfariwa ka ndzhawu yo pfalela, leyi ti titshegeke hi yoxe. Ti valve totala ta gede ti pfariwa hi nkani, leswivulaka leswaku loko valve yi pfariwile, ram yifanele ku tshikileriwa hi matimba kuya eka xitulu xa valve hi matimba yale handle kutiyisisa ku tiya ka ndzhawu yo pfalela.
Movement mode: Gate plate ya gate valve yi famba hi layini yo kongoma na valve stem, leyi tlhelaka yivuriwa open rod gate valve. Hi ntolovelo kuna thyaka ra trapezoidal eka nhonga yo tlakusa, hiku tirhisa nati yale henhla ka valve na guide groove eka miri wa valve, rotary motion yi cinciwa kuya eka linear motion, leswivulaka leswaku torque yo tirha yi cinciwa kuya eka operating thrust. Loko valve yi pfuriwile, loko ku tlakuka ka ram lift ku ringana na 1:1 times the valve diameter, ku khuluka ka fluid a ku siveriwi hi ku helela, kambe xiyimo lexi a xi nge langutiwi hi nkarhi wa ntirho. Eka matirhiselo ya xiviri, yi funghiwa hi vertex ya nsinya, hi leswaku, ndzhawu leyi yinga pfuriwiki, tani hi ndzhawu ya yona leyi pfulekeke hiku hetiseka. Leswaku ku hlamuseriwa xiendlakalo xa lock-up xa ku cinca ka mahiselo, hi ntolovelo yi pfuriwa eka xiyimo xa apex, kutani yi tlheriseriwa endzhaku eka 1/2-1 turn tani hi xiyimo xa valve leyi pfulekeke hiku hetiseka. Hikokwalaho, ndzhawu leyi pfulekeke hiku hetiseka ya valve yikumiwa hi ndzhawu ya ram (i.e. stroke). Nati yin’wana ya stem ya gate valve yi kumeka egedeni, naswona handwheel ya rhendzeleka ku fambisa nsinya wa valve ku rhendzeleka, naswona gate plate ya tlakusiwa, valve leyi yi vuriwa rotary rod gate valve kumbe dark rod gate valve.
Nkarhi wa poso: Aug-22-2024
