Izinto ezisisiseko zeValve kufuneka ziqale ukuqwalasela iipropathi zomzimba (ubushushu, uxinzelelo) kunye neepropathi zekhemikhali (i-SORROUP) yendawo yokusebenza. Kwangelo xesha, kuyayimfuneko ukwazi ukucoceka kwephakathi (nokuba kukho amasuntswana aqinileyo). Ukongeza, imigaqo efanelekileyo kunye neemfuno zelizwe kunye namasebe abasebenzisi aya kuthunyelwa kuzo.
Iindidi ezininzi zezinto zinokuhlangabezana neemfuno zenkonzo zeValves phantsi kweemeko ezahlukeneyo zomsebenzi. Nangona kunjalo, olona nkonzo lubalaseleyo loqoqosho kunye neyona ndlela intsebenzo ye-valve inokufumaneka ngokuchongwa ngokuchanekileyo nangokufanelekileyo kwezixhobo ze-valve.
Izinto eziqhelekileyo zomzimba wevali
I-1. I-Grey Conves yentsimbi isetyenziswa ngokubanzi kwimizi-mveliso eyahlukeneyo yemizi-mveliso ngenxa yexabiso labo eliphantsi kunye nobubanzi besicelo. Zihlala zisetyenziswa kwimeko yamanzi, i-Steam, ioyile kunye negesi njengeyona ndawo iphakathi, kwaye isetyenziswa ngokubanzi kwishishini lemichiza, ukushicilela kunye nezinye iimveliso zeShishini ezingenamsebenzi.
Isebenza kwiivali zoxinzelelo eziphantsi ezinamaqondo obushushu asebenzayo - i-15 ~ 200 ℃ kunye noxinzelelo oluthile lwe-PN ≤ 1.6MPA.
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I-2. I-SORE MALI YABADLALO ENYE isebenza kwiivali zoxinzelelo eziphakathi nezokusebenzisa amaqondo obushushu ephakathi - i-15 ~ 300 ℃ kunye noxinzelelo olufanelekileyo pn ≤ 2.5MPA.
Amajelo eendaba asebenzayo angamanzi, amanzi olwandle, igesi, i-amonia, njl.
3. I-Nodular yentsimbi yentsimbi I-Flake igrafu kwi-iron ye-green itshintshwa yigrafu ye-noddarr okanye igrafu ye-globler. Utshintsho lwesakhiwo sangaphakathi sesi sinyithi senza iipropati zentsimbi ezingcono kune-iron ye-iron eqhelekileyo, kwaye ingonakalisi ezinye iipropathi. Ke ngoko, i-valves eyenziwe ngentsimbi ye-ductile inoxinzelelo oluphezulu lwenkonzo kunezo zenziwe ngentsimbi engwevu. Isebenza kwiivali zoxinzelelo eziphakathi nencinane kunye neqondo lokusebenza eliphakathi - 30 ~ 350 ℃ kunye noxinzelelo oluthile lwe-PN ≤ 4.0PA.
Ngaphakathi ngamanzi, amanzi olwandle, isitya, umoya, igesi, ioyile, njl njl.
4. I-Carbon Steel (WCA, WCB, WCC) Ekuqaleni iphuhlise intsimbi ukuba ifezekise iimfuno zemveliso zangaphaya komthamo weevalves zentsimbi kunye neevallo zentsimbi. Nangona kunjalo, ngenxa yokusebenza kakuhle kweenkonzo ze-carbon yentsholongwane kunye nokuchasana nokugxininisa kakhulu kugxininiso, umthwalo wefuthe kunye nokusetyenziswa kwe-Pipeline, kubandakanya i-valves eneempondo zentsimbi.
Isebenza kwiiVeves eziPhakathi kunye nePhakamileyo zoLondelelo ezinobushushu obusebenzayo - 29 ~ 425 ℃. Iqondo lobushushu le-16mn kunye ne-30mn liphakathi kwe-40 ~ 400 ℃, edla ngokutshintsha i-ATTM A105. I-Steam ePhakamileyo yePhezulu iGqirha kunye neSteam Steam. Iimveliso eziphakamileyo nezingaphantsi zeqondo lokushisa amaqondo obushushu, igesi engcolileyo, umoya oxinzelelweyo, amanzi, igesi yendalo, njl.
I-5. Iqondo lobushushu eliphantsi le-carbon (LCB) I-Cheel yeSoftware ye-carbon ye-carbon kunye ne-nickel ye-nickel ye-nickel yensimbi inokusetyenziswa kuluhlu lobushushu apha ngezantsi kwe-zero, kodwa alunakuphela kwindawo ye-FROGENIC. IiValveve zenziwe kwezi zixhobo zilungele ezi mithombo zolwandle, ezinje ngamanzi olwandle, i-carbon diokside, acetylene, proplene kunye nethoylene.
Isebenza kumaqondo obushushu aphantsi kunye neqondo lobushushu phakathi kwe-46 ~ 345 ℃.
I-6. IiVlanga ezenziwe ngentsimbi yentsimbi ephantsi (WC6, WC9) kunye nentsimbi ephantsi ye-carbon molybdenum yentsimbi, kubandakanywa i-chromium molybdenum yentsimbi, i-Steam egcwalisiweyo, irhasi eshushu, igesi eshushu, igesi yendalo nomoya. Iqondo lokusebenza le-carbon ye-carbon linokuba yi-500 ℃, kwaye ivalve yentsimbi esezantsi ye-allous inokuba ngaphezulu kwe-600 ℃. Kubushushu obuphezulu, iipropathi zoomatshini bentsimbi esezantsi yentsimbi ziphezulu kunelo yensimbi yekhabhoni.
Amaqondo obushushu aphezulu kunye neeValves eziPhakathi eziPhandleni zePhezulu eziNgeyo kunye neqondo lobushushu phakathi kwe-29 ~ 595 ℃; I-C5 kunye ne-C12 isebenza kubushushu obuphakathi kunye nee-valves-valves eziphezulu zemidiya yobutyebi kunye neqondo lokusebenza eliphakathi - 29 nelama-2950 ℃.
I-7. I-Austetitic Stainess Staels Ispititic Stainess iqukethe malunga ne-18% yeChromium kunye ne-8% iNickel. Intsimbi ye-Austititic Stainess ihlala isetyenziswa njengomzimba wevali kunye nempahla ye-bonnet ephantsi kweqondo lobushushu obuphezulu kunye nezantsi kunye neemeko zobuqili. Ukongeza i-molybdenum ukuya kwi-18-8 i-matrix yentsimbi engenasitayile kunye nomxholo we-nickel onyukayo uya kwandisa kakhulu ukumelana nokunganyangeki. Iicawa ezenziwe lensimbi zinokusetyenziswa ngokubanzi kwishishini lekhemikhali, njengokudlulisela i-acetic acid, i-nitric acid, i-alkali, ijusi, i-carbonic acid, ezinye iimveliso zamachiza.
Ukwenzela ukuba ufake isicelo kuluhlu lobushushu obuphezulu kwaye utshintsha ngakumbi ukwakhiwa kwezinto, i-niobium yongezwa kwintsimbi engenasimo, eyaziwa njenge-18-10-nb. Iqondo lobushushu linokuba ngama-800 ℃.
Intsimbi engenasimo i-Austetitic idla ngokusetyenziswa ngamaqondo obushushu aphantsi kakhulu kwaye ayiyi kuba yi-BRETLE, ngenxa yoko i-valves yenziweyo (njenge-18-8 kunye ne-18-10E) ilungele amaqondo obushushu asezantsi. Umzekelo, ihambisa igesi ye-flule, njengegesi yendalo, i-biogas, ioksijini kunye ne-nitrogen.
Isebenza kwiivali ezinamachaphaza aphakathi enobushushu obuphakathi phakathi kwe-196 ~ 600 ℃. Intsimbi engenasimo ingenanto ye-Austetitic ikwindawo ye-veli yeqondo lobushushu ephantsi.
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8. Iiplasitiki kunye ne-ceramics zizinto ezingezizo ezomeleleyo. Elona phawu likhulu leeVualvel ezingezizo ze-metric kukunganyangeki kwabo okuqinileyo, kwaye neenzuzo ezingenakukwazi ukuzithabatha. Isebenza ngokubanzi kwimithombo yeendaba yoxinzelelo lwe-PN ≤ 1.6MPA kunye neqondo lokusebenza elingadluli kwi-60 ℃, kunye ne-postve enganetyhefu yomanyano enye isebenza kwishishini lokuhambisa amanzi. Izinto ezisisiseko zeValve kufuneka ziqale ukuqwalasela iipropathi zomzimba (ubushushu, uxinzelelo) kunye neepropathi zekhemikhali (i-SORROUP) yendawo yokusebenza. Kwangelo xesha, kuyayimfuneko ukwazi ukucoceka kwephakathi (nokuba kukho amasuntswana aqinileyo). Ukongeza, imigaqo efanelekileyo kunye neemfuno zelizwe kunye namasebe abasebenzisi aya kuthunyelwa kuzo.
Iindidi ezininzi zezinto zinokuhlangabezana neemfuno zenkonzo zeValves phantsi kweemeko ezahlukeneyo zomsebenzi. Nangona kunjalo, olona nkonzo lubalaseleyo loqoqosho kunye neyona ndlela intsebenzo ye-valve inokufumaneka ngokuchongwa ngokuchanekileyo nangokufanelekileyo kwezixhobo ze-valve.
IXESHA LOKUQALA: NgoFebt-28-2023