Ingcindezi ephezuluama-valve ziwuhlobo lweama-valve ezingamelana nokucindezela futhi zisetshenziselwa ukuthutha uketshezi.Kunezinhlobo eziningi zeama-valve, kuhlanganise nensimbiama-valve, ithusiama-valve, insimbi engagqwaliama-valve, nabanye.
Insimbi enengcindezi ephezuluama-valve kukhona ikakhulukazi esetshenziselwa ukwakha insimbi yekhwalithi ephezulu ye-carbon structural, i-alloy structural steel, nensimbi engenamthungo engashisiama-valve amapayipi okubhayela isitimu ngaphansi kwengcindezi ephezulu nangaphezulu.Lezi boilersama-valve ingaphinde ithole i-oxidation kanye nokugqwala lapho isebenza ekushiseni okuphezulu nokucindezela okuphezulu, nangaphansi kwesenzo se-high-temperature flue gas kanye nomhwamuko wamanzi.Ngakho-ke, insimbiama-valve zidingeka ukuthi zibe namandla aphezulu okukhuthazela, ukumelana ne-oxidation ephezulu, nokuzinza okuhle kwenhlangano. Amamaki ensimbi asetshenzisiwe afaka: amamaki ensimbi yekhwalithi ephezulu ye-carbon structural afaka i-20G, 20MnG, kanye ne-25MnG. I-alloy structural steel amabanga 15MoG, 20MoG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12CrMoVG, 12Cr3MoVSiTiB, njll.. Insimbi egqwalile futhi engashisi 1Cr18Ni9 kanye ne-1Cr18Ni11Nb high-pressureama-valve zivame ukusetshenziswa.
Ngaphezu kokuqinisekisa ukwakheka kwamakhemikhali kanye nezakhiwo zemishini, ipayipi ngalinye kufanele lihlolwe umfutho wamanzi, okuhlanganisa ukunwetshwa kanye nokuhlolwa kokucaba.Insimbiama-valve zilethwa esimweni sokuphathwa ukushisa.Ngaphezu kwalokho, kunezidingo ezithile ze-microstructure, usayizi wokusanhlamvu, kanye nongqimba lwe-decarburization yensimbi eqediweama-valve.Insimbi engenasiciama-valve ngokumba i-geological drilling kanye nokulawula ukumba i-petroleum. Ukuze uhlole ukwakheka kwezingqimba zamadwala angaphansi komhlaba, amanzi angaphansi komhlaba, uwoyela, igesi yemvelo, nemithombo yamaminerali, umshini wokumba usetshenziselwa ukumba imithombo.Ukukhishwa kukawoyela negesi yemvelo akukwazi ukuhlukaniswa nemithombo yokumba.Insimbi engenamthungoama-valve ezisetshenziselwa ukumba kanye nokulawula i-geological imishini eyinhloko yokumba, ikakhulukazi okuhlanganisa umgogodla wangaphandleama-valve, ingaphakathi elingaphakathiama-valve, amabhokisi, ukubhobozaama-valve, njll. Ngenxa yezimo zokusebenza eziyinkimbinkimbi kakhulu zokumbaama-valve ezidinga ukungena ezinkulungwaneni zamamitha zokujula kwe-geological, i-drillama-valve bangaphansi kwemiphumela yengcindezi efana nokushuba, ukucindezelwa, ukugoba, ukukhwehlela, kanye nemithwalo engalingani, kanye nokuba ngaphansi kodaka namadwala.Ngakho-ke, kuyadingeka ukuthiama-valve kufanele ibe namandla anele, ubulukhuni, ukumelana nokugqoka, kanye nokuqina komthelela.
Insimbiama-valve amelwe i-"DZ" (isiqalo sefonetiki yesiShayina se-geology) kanye nenombolo yokuqala ukumela iphuzu lokukhiqiza lensimbi, Amabanga ensimbi asetshenziswa ngokuvamile ahlanganisa 45MnB kanye no-50Mn we-DZ45. 40Mn2 kanye ne-40Mn2Si ye-DZ50. 40Mn2Mo kanye ne-40MnVB ye-DZ55. 40MnMoB ye-DZ60 kanye ne-27MnMoVB ye-DZ65.Insimbiama-valve zilethwa esimweni sokuphathwa ukushisa.Ipayipi eliqhekezayo likaphethiloli: Ipayipi elingenamthungo elisetshenziselwa isithando somliloama-valve, isishintshi sokushisaama-valve, kanye namapayipi ezindawo zokuhluza uphethiloli.Ivamise ukusetshenziselwa ukukhiqiza izinga eliphezulu le-carbon steel (10, 20), i-alloy steel (12CrMo, 15CrMo), insimbi engashisi (12Cr2Mo, 15Cr5Mo), nensimbi engagqwali (1Cr18Ni9, 1Cr18Ni9Ti).Ngaphezu kokuthola isitifiketi sokubunjwa kwamakhemikhali kanye nezakhiwo ezihlukahlukene zemishini, insimbiama-valve futhi kudingeka uhlolwe okufana nomfutho wamanzi, ukwenza isicaba, nokuvutha, kanye nekhwalithi yendawo kanye nokuhlolwa okungabhubhisi.
Insimbiama-valve zilethwa esimweni sokuphathwa ukushisa.Insimbi engagqwaliama-valve: Insimbi engagqwaliama-valve ezishiswayo noma ezigoqwe ngokubanda ngezinhlobo ezahlukene zensimbi engagqwali zisetshenziswa kakhulu kumapayipi emishini kaphethiloli namakhemikhali, kanye nezingxenye zesakhiwo sensimbi engagqwali ngezinjongo ezahlukahlukene.Ngaphezu kokuqinisekisa ukwakheka kwamakhemikhali kanye nezakhiwo zemishini, yonke insimbiama-valve esetshenziswa ukumelana nomfutho we-fluid kufanele iqinisekise ukuthi bayaphumelela ukuhlolwa kwe-hydraulic.Insimbi ekhethekile ehlukahlukeneama-valve kufanele kuqinisekiswe ngokwemibandela ethile.
Isikhathi sokuthumela: May-16-2023