Uxinzelelo oluphezuluiivalve luhlobo lweiivalve ezinokumelana noxinzelelo kwaye zisetyenziselwa ukuthutha ulwelo.Kukho iintlobo ezininziiivalve, kuquka intsimbiiivalve, ubheduiivalve, yenziwe ngentsimbi eshayinayoiivalve, kunye nabanye.
Intsimbi yoxinzelelo oluphezuluiivalve zi ubukhulu becala isetyenziselwa ukwenza umgangatho ophezulu wekhabhoni yolwakhiwo lwentsimbi, intsimbi yokwakha ingxubevange, kunye nentsimbi ekwaziyo ukumelana nobushushu engenamthungo.iivalve imibhobho yebhoyila yomphunga phantsi koxinzelelo oluphezulu nangaphezulu.Ezi kwibhoyilaiivalve inokuphinda ingene kwi-oxidation kunye ne-corrosion xa isebenza kwiqondo lokushisa eliphezulu kunye noxinzelelo oluphezulu, kwaye phantsi kwesenzo se-high-temperature flue gas kunye nomphunga wamanzi.Ngoko ke, intsimbiiivalve kufuneka babe namandla okunyamezela okuphezulu, ukuxhathisa okuphezulu kwe-oxidation, kunye nokuzinza okuhle kombutho. Amanqanaba ensimbi asetyenzisiweyo abandakanya: umgangatho ophezulu wekhabhoni yesakhiwo sentsimbi ibandakanya i-20G, i-20MnG, kunye ne-25MnG. I-alloy structural steel grade 15MoG, 20MoG, 12CrMoG, 15CrMoG, 12Cr2MoG, 12CrMoVG, 12Cr3MoVSiTiB, njl.. Umhlwa kunye nentsimbi ekwazi ukumelana nobushushu 1Cr18Ni9 kunye noxinzelelo oluphezulu lwe-1Cr18Ni11Nbiivalve zisetyenziswa ngokuqhelekileyo.
Ukongeza ekuqinisekiseni ukubunjwa kweekhemikhali kunye neempawu zemishini, umbhobho ngamnye kufuneka uvavanye uxinzelelo lwamanzi, kubandakanywa novavanyo lokwandiswa kunye nokunciphisa.Intsimbiiivalve zihanjiswa kwimeko yokuphathwa ngubushushu.Ukongeza, kukho iimfuno ezithile ze-microstructure, ubungakanani beengqolowa, kunye ne-decarburization layer yentsimbi egqityiweyoiivalve.Intsimbi engenamthungoiivalve kugrumba i-geological drilling kunye nolawulo lokugrumba i-petroleum. Ukuphonononga ubume bamatye angaphantsi komhlaba, amanzi aphantsi komhlaba, i-oyile, irhasi yendalo, kunye nemithombo yezimbiwa, isixhobo sokomba sisetyenziselwa ukugrumba amaqula.Ukutsalwa kweoli kunye negesi yendalo akunakuhlukaniswa namaqula okomba.Intsimbi engenamthungoiivalve esetyenziselwa ukugrumba komhlaba kunye nolawulo zezona zixhobo ziphambili zokomba, ingakumbi kubandakanywa undoqo wangaphandleiivalve, undoqo wangaphakathiiivalve, ii-casings, i-drilliivalve, njl. Ngenxa yeemeko zokusebenza ezinzima kakhulu zokombaiivalve ezifuna ukungena kumawaka aliqela eemitha zobunzulu bejoloji, i-drilliivalve ziphantsi kweziphumo zoxinzelelo ezinje ngoxinzelelo, uxinzelelo, ukugoba, ukushukuma, kunye nemithwalo yempembelelo engalinganiyo, kunye nokuba phantsi kodaka kunye nokunxitywa kwamatye.Ngoko ke, kuyimfuneko ukubaiivalve kufuneka ibe namandla okwaneleyo, ubulukhuni, ukuxhathisa ukunxiba, kunye nokuqina kwempembelelo.
Intsimbiiivalve zimelwe yi "DZ" (isiqalo sefonetiki yaseTshayina kwi-geology) kunye nenani elinye lokumela isivuno sentsimbi, amabakala ensimbi asetyenziswa ngokuqhelekileyo aquka i-45MnB kunye ne-50Mn ye-DZ45. I-40Mn2 kunye ne-40Mn2Si ye-DZ50. I-40Mn2Mo kunye ne-40MnVB ye-DZ55. I-40MnMoB ye-DZ60 kunye ne-27MnMoVB ye-DZ65.Intsimbiiivalve zihanjiswa kwimeko yokuphathwa ngubushushu.Umbhobho oqhekezayo wepetroli: Umbhobho ongenamthungo osetyenziselwa izikoiivalve, umtshintshi wobushushuiivalve, kunye nemibhobho kwiindawo zokuhluza i-petroleum.Ngokuqhelekileyo isetyenziselwa ukuvelisa umgangatho ophezulu we-carbon steel (10, 20), insimbi ye-alloy (12CrMo, 15CrMo), insimbi engamelanga ukushisa (12Cr2Mo, 15Cr5Mo), kunye nensimbi engenasici (1Cr18Ni9, 1Cr18Ni9Ti).Ukongeza kokufumana isatifikethi sokwakheka kweekhemikhali kunye neempawu ezahlukeneyo zomatshini, intsimbiiivalve Kukwafuneka kwenziwe uvavanyo olunje ngoxinzelelo lwamanzi, ukuthambisa, kunye nokuvutha, kunye nomgangatho womphezulu kunye novavanyo olungonakalisi.
Intsimbiiivalve zihanjiswa kwimeko yokuphathwa ngubushushu.Yenziwe ngentsimbi eshayinayoiivalve: Yenziwe ngentsimbi eshayinayoiivalve ezishushu-eziqengqelekayo okanye kubanda-role ngeentlobo ngeentlobo zentsimbi stainless zisetyenziswa kakhulu kwi-petroleum kunye nemibhobho izixhobo imichiza, kunye nentsimbi stainless izakhiwo zezakhiwo ngeenjongo ezahlukeneyo.Ukongeza ekuqinisekiseni ukubunjwa kweekhemikhali kunye neempawu zemishini, zonke intsimbiiivalve ezisetyenziselwa ukumelana noxinzelelo lwe-fluid kufuneka ziqinisekise ukuba ziyaluphumelela uvavanyo lwe-hydraulic.Iintsimbi ezikhethekileyo ezahlukeneyoiivalve kufuneka ziqinisekiswe ngokwemiqathango echaziweyo.
Ixesha lokuposa: May-16-2023