I-Ductile yentsimbi ethambileyo yeSango iValve yeSango VS.I-Ductile Iron Hard Seal Ivalve yeSango
Iivalvu zesango lokutywina elithambileyo kunye neevalvu zesango lokutywina eziqinileyo ziqhele ukusetyenziswa izixhobo zokulawula kunye nokuthintela ukuhamba, zombini zinomsebenzi olungileyo wokutywina, uluhlu olubanzi losetyenziso, kwaye yenye yeemveliso ezithengwa ngabathengi ngakumbi.Ezinye ii-novices zokuthenga zinokuba nomdla, ngokufanayo nevalve yesango, yintoni umahluko phakathi kwabo?
Itywina elithambileyo litywina phakathi kwentsimbi kunye nengeyontsimbi, ngelixa itywina eliqinileyo litywina phakathi kwentsimbi kunye nentsimbi.Ivalve yesango lokutywina elithambileyo kunye nevalve yesango elitywiniweyo zizinto zokutywina, isitywina esiqinileyo sichaneke ngoomatshini kunye nezinto zokuhlala ukuze kuqinisekiswe ukuchaneka kokulungelelana kunye ne-spool (ibhola), ngokuqhelekileyo insimbi engenasici kunye nobhedu.Isitywina esithambileyo sifakwe kwisixhobo sokutywina sesihlalo sevalve yinto engeyiyo eyentsimbi, ngenxa yesixhobo sokutywina esithambileyo sinomgangatho othile wokunwebeka, kwaye ke iimfuno zokuchaneka kokuchaneka zingaphantsi kunoko luyakuba njalo.Ngezantsi kukuthatha uqonde umahluko phakathi kwevalve yesango elithambileyo kunye nevalve yesango eliqinileyo.
Izinto zokuqala zokutywina
1. Izinto ezimbini zokutywina zihlukile.Ivalve yesango elithambileyo idla ngokuba yirabha okanye i-PTFE kunye nezinye izinto.Ivalve yesango lokutywina eliqinileyo kusetyenziswa intsimbi engatyiwayo kunye nezinye iintsimbi.
2. Isitywina esithambileyo: ukutywina icala le-vice lamacala amabini esixhobo sesinyithi, elinye icala lezinto ezilastiki ezingezizo ezentsimbi, ezaziwa ngokuba yi "soft seal".Isiphumo sokutywinwa kwezivalo zesango ezinjalo, kodwa kungekhona ukushisa okuphezulu, kulula ukunxiba kunye nokukrazula, kunye neempawu ezimbi zoomatshini.Njengentsimbi + irabha;intsimbi + PTFE njalo njalo.
3. Ukutywinwa okuqinileyo: ukutywinwa okuqinileyo kunye nokutywinwa kumacala omabini yintsimbi okanye ezinye izinto eziqinileyo.Ukutywinwa kwevalve yesango okunjalo kubi, kodwa ukumelana nobushushu obuphezulu, ukumelana nokunxiba, kunye neempawu ezilungileyo zoomatshini.Njengentsimbi + yentsimbi;intsimbi + ubhedu;intsimbi + igraphite;intsimbi + intsimbi ye-alloy;(kunokusebenzisa intsimbi etyhidiweyo, intsimbi ye-alloy, i-alloy yepeyinti yokutshiza, njl.).
Okwesibini, inkqubo yokwakha
Ishishini lomatshini linomsebenzi onzima, uninzi lwawo lubushushu obuphantsi kakhulu kunye noxinzelelo oluphantsi, ukuxhathisa okuphezulu kweendaba, kunye nokugqwala.Ngoku, inkqubela phambili yetekhnoloji ikhokelele ekwandisweni kweevalvu zesango eliqinileyo.
Ukuqwalasela unxulumano phakathi kobulukhuni bentsimbi, ivalve yesango elitywiniweyo, kunye nokutywinwa okuthambileyo, umzimba wevalvu kufuneka uqiniswe, kunye nepleyiti yevalvu kunye nesitulo sevalvu ukugcina ukucola ukufezekisa ukutywinwa.Umjikelo wokuvelisa ivalvu yesango eliqinileyo lide kakhulu.
Okwesithathu, ukusetyenziswa kweemeko
1, itywina elithambileyo linokuqonda ukuvuza kwe-zero, ukutywina okuqinileyo kunokulungelelaniswa ngokweemfuno eziphezulu nezisezantsi;
2, Amatywina athambileyo angavuza phantsi kobushushu obuphezulu, kufuneka anikele ingqalelo ekuthinteleni umlilo, kwaye amatywina anzima awayi kuvuza phantsi kobushushu obuphezulu.Ivalve yokuvala ivalve engxamisekileyo ingasetyenziswa kuxinzelelo oluphezulu, isitywina esithambileyo asinakusetyenziswa.
3, kwezinye imidiya ezonakalisayo, itywina elithambileyo alinakusetyenziswa, ungasebenzisa itywina eliqinileyo;
4, kubushushu obuphantsi kakhulu, izinto ezithambileyo zokutywina ziya kuvuza, ukutywina okuqinileyo akuyongxaki enjalo;
Okwesine, ukhetho lwezixhobo luvuliwe
Omabini amanqanaba okutywinwa anokufikelela kwisithandathu, ngokuqhelekileyo ngokusekwe kwinkqubo ephakathi, ubushushu, kunye noxinzelelo lokukhetha ivalve yesango elungileyo.Kwimithombo yeendaba ngokubanzi equkethe iinqununu eziqinileyo okanye i-abrasive, okanye xa izinga lokushisa lidlula ama-degrees angama-200, kungcono ukhethe isitywina esiqinileyo.Ukuba i-torque yevalve yokuvala inkulu, kufuneka ukhethe ukusebenzisa ivalve yesango eliqinileyo eliqinileyo.
Isihlanu, umahluko kubomi benkonzo
Inzuzo yesitywina esithambileyo kukutywinwa okulungileyo, ukungonakali kukuba kulula ukuguga, ukugqoka kunye nokukrazula, ubomi obufutshane.Ubomi benkonzo yotywino olunzima bude, kwaye ukusebenza kokutywina kubi kunotywina oluthambileyo, ezi zimbini zinokuncedisana.
Oku kungasentla ngumahluko phakathi kwevalve yesango elithambileyo kunye nevalve yesango eliqinileyo lokwabelana ngolwazi, ndiyathemba ukuba ndingakwazi ukukunceda kumsebenzi wokuthenga.
