Hi swihi swilo swin’wana swa nkoka leswi u faneleke u swi kambisisa loko u hlawula nchumu lowu faneleke wo pfalela eka xikombelo?
Ntsengo lowukulu na mihlovo leyi faneleke
Ku kumeka ka swilemo
Swilo hinkwaswo leswi khumbhaka eka sisiteme yo pfalela: xikombiso ndzhawu ya mahiselo, mati na ntshikelelo
Leswi hinkwaswo i swilo swa nkoka leswi u faneleke u swi tekela enhlokweni eka fambiselo ra wena ro pfalela. Loko swilo hinkwaswo swi tiviwa, swi ta olova ku hlawula rungula leri faneleke.
Kambe xilaveko xa le mahlweni hi leswaku nchumu wolowo wu fanele wu tiya. Kutani nchumu wo sungula lowu faneleke ku tekeriwa enhlokweni i matirhelo ya xithekiniki. A hi sunguleni hi mhaka ya matirhelo.
Vutomi bya sisiteme na ntsengo i swilo swa nkoka (TIanjin Tanggu Mati-Xisirhelelo xa Valve Co.,ltd) ku kambisisa. Swilo hinkwaswo swi ta khumba matirhelo ya xitirhisiwa xa wena. I swa nkoka ku tekela enhlokweni swilo swa dizayini kuya hi xitirhisiwa. Leswi swikatsa switirhisiwa leswi tirhisiwaka, swivumbeko swa hardware na maendlelo ya vuhumelerisi. Kutlhela kuva na swilo swa mbango leswi faneleke ku tekeriwa enhlokweni kukatsa na: ntshikelelo, mahiselo, nkarhi, nhlengeletano na vuhangalasi bya mahungu.
elastomer leyi vuriwaka elastomer
Ti elastomers titsakeriwa ngopfu hikokwalaho ka ku olova ka tona lokunene. Ku hava nchumu wun’wana lowu nga ni mpimo lowu fanaka wa ku olova.
Switirhisiwa swin’wana swofana na ti polyurethanes nati thermoplastics swikota swinene na ntshikelelo kutlula ti elastomers.
Switirhisiwa swa rhaba swinga tirhisiwa eka switirhisiwa swohambana hambana swohambana hambana.
Swihlawulekisi swa nkoka swa michini swi katsa
ku olova
ku nonoka
matimba ya ku koka
Swilo swin’wana swa nkoka swi katsa
• .Seti ya ntshikelelo
• .ku lwisana na ku hisa
• .ku cinca cinca ka mahiselo yale hansi
• .ku fambisana ka tikhemikhali
• .Ku lwisana na ku dyuhala
• .ku lwisana na ku rhurhumela
Xivumbeko xa nkoka swinene i ku olova ka swilo leswi endliweke hi rhaba. A hi dyondzeni swo tala hi mhaka leyi.
Elasticity i mbuyelo wa vulcanization. Switirhisiwa swa elastomeric, swofana na rhaba leyi vulcanized, swita tlhelela eka xivumbeko xa swona xosungula loko swi onhakile.
Swilo leswi nga oloviki, swo tanihi rhaba leyi nga vulcanized, a swi nge tlheleli eka xiyimo xa swona xo sungula loko swi onhakile. Vulcanization (ku fana navalve ya phaphatani ra flange timbirhi) i endlelo ro hundzula rhaba yi va nchumu wa elastomeric.
Ku hlawuriwa ka ti elastomers ngopfu ngopfu ku sekeriwe eka:
• .nxaxamelo wa mahiselo yo tirha
• .Ku lwisana na swihalaki na tigasi
• .Ku lwisana na maxelo, ozone na miseve ya UV
Ku hlawuriwa ka ti elastomers ngopfu ngopfu ku sekeriwe eka:
• .nxaxamelo wa mahiselo yo tirha
• .Ku lwisana na swihalaki na tigasi
• .Ku lwisana na maxelo, ozone na miseve ya UV
Swilo swa tsevu leswi faneleke ku tekeriwa enhlokweni loko ku hlawuriwa switirhisiwa swa le henhla swo pfalela valve
Xiphemu xo pfalela hi xona xa nkoka swinene xo tirha xavalve, khwalithi ya vuandlalo byo pfalela yi khumba hi ku kongoma vutomi bya vutirheli byavalve, naswona swilo leswi endliweke hi xisirhelelo i nchumu wa nkoka ku tiyisisa khwalithi ya ndhawu yo pfalela. Hikokwalaho, swilo leswi landzelaka swifanele ku tekeriwa enhlokweni loko ku hlawuriwa xitirhisiwa xale henhla xo pfalela valve:
1Ku lwisana na ku bola. “Corrosion” i endlelo leri eka rona vuandlalo bya vuandlalo byo pfalela byi onhakaka ehansi ka xiendlo xa xitirhisiwa. Loko vuandlalo bya ndzhawu yo pfalela byi rhurhumerile, matirhelo ya ku pfalela a ya nge tiyisisiwi, hikokwalaho swilo swa le henhla swo pfalela swifanele kuva swinga rhurhumeli. Ku tiya ka corrosion ka nchumu swiya ngopfu hi xivumbeko xa nchumu na ku tiya ka wona ka ti khemikhali.
2Ku lwisana na ku rhurhumela. “Ku khwaxa” swi vula ku onhaka loku vangiwaka hi ku hlangana ka nchumu lowu hi nkarhi wa ku famba-famba loku ringanaka ka vuandlalo byo pfalela. Muxaka lowu wa ku onhaka handle ko kanakana wu ta vanga ku onhaka eka vuandlalo byo pfalela. Hikokwalaho, switirhisiwa swale henhla swo pfalela swifanele kuva na swivumbeko swa kahle swa anti-scratch, ngopfu ngopfu eka ti gate valves. Ku tiya ka ku khwaxa ka nchumu wo karhi hakanyingi ku kumiwa hi swivumbeko swa le ndzeni swa nchumu wolowo.
IIIKu lwisana na ku khuluka ka mati. “Erosion” i endlelo ro herisa ndzhawu yo pfalela loko medium yi khuluka eka ndzhawu yo pfalela hi rivilo lerikulu. Muxaka lowu wa ku onhaka wu vonaka ngopfu eka ti throttle valves nati safety valves leti tirhisiwaka eka mahiselo yale henhla na ntshikelelo wale henhla wa steam media, naswona wuna nkucetelo lowukulu eka ku onhaka ka matirhelo ya sealing. Hikokwalaho, ku lwisana na erosion na swona i xin’wana xa swilaveko swa nkoka eka ku pfalela switirhisiwa swale henhla.
4Yifanele kuva na ku tiya kokarhi, naswona ku tiya kuta hunguteka swinene ehansi ka mahiselo lawa ya vekiweke ya ntirho.
5Linear expansion coefficient ya sealing surface na body material swifanele kufana, leswinga swa nkoka swinene eka xivumbeko xa sealing ring, leswaku kuta papalatiwa extra stress xikan’we naku ntshunxeka eka mahiselo yale henhla.
6Kutirhisiwa ehansi ka swiyimo swa mahiselo yale henhla, kufanele kuva na anti-oxidation leyi ringaneleke, ku lwisana na ku karhala ka mahiselo xikan’we na timhaka ta thermal cycle.
Ehansi ka swiyimo swa sweswi, swa tika ku kuma xitirhisiwa xo pfalela lexi fikelelaka swilaveko leswinga laha henhla hiku hetiseka. Hi nga kongomisa ntsena eka ku fikelela swilaveko swa swiyenge swo karhi ku ya hi tinxaka to hambana ta tivalvu na matirhiselo. Xikombiso, ti valve leti tirhisiwaka eka swihangalasamahungu swa rivilo lerikulu tifanele ku nyikela nyingiso wo hlawuleka eka swilaveko swaku lwisana na erosion swa ndzhawu yo pfalela; naswona loko xitirhisiwa xiri na thyaka ro tiya, switirhisiwa swale henhla swo pfalela leswingana ku tiya lokukulu swifanele ku hlawuriwa.
Nkarhi wa poso: Mar-08-2023
