Uxhumano olunamaphiko luwumzimba we-valve enama-flange emikhawulweni yomibili, ehambisana nama-flange epayipini, ngokubopha i-flange efakwe epayipini. Uxhumano lwe-Flanged wuhlobo oluvame ukusetshenziswa kakhulu lokuxhunywa kwe-valve. Ama-Flange ane-convex (RF), indiza (FF), i-convex ne-concave (MF) namanye amaphuzu. Ngokusho kokuma kwendawo ehlangene, ingahlukaniswa ngezinhlobo ezilandelayo:
(1) uhlobo olubushelelezi: lwevalvu enengcindezi ephansi. Ukucubungula kulula kakhulu;
(2) uhlobo lwe-concave kanye ne-convex: ingcindezi ephezulu yokusebenza, ingasebenzisa i-gasket eqinile;
(3) uhlobo lwe-tenon groove: i-gasket ene-deformation enkulu yepulasitiki ingasetshenziswa kabanzi kumithombo yezindaba ezonakalisayo, futhi umphumela wokuvala ungcono;
(4) uhlobo lwe-trapezoidal groove: indandatho yensimbi eyi-oval njenge-gasket, esetshenziswa ku-valve yokusebenza ingcindezi ≥64 kg/cm2, noma i-valve yokushisa ephezulu;
(5) Uhlobo lwelensi: igasket isesimweni selensi, eyenziwe ngensimbi. Isetshenziselwa ama-valve aphezulu anengcindezi yokusebenza ≥ 100kg/cm2, noma ama-valve okushisa aphezulu;
(6) Uhlobo lwe-O-ring: lolu uhlobo olusha lokuxhuma kwe-flange, kungenxa yokuvela kwazo zonke izinhlobo ze-rubber O-ring, futhi ithuthukisiwe, inokwethenjelwa kakhulu emthelela wokuvala kune-gasket evamile.
(1) Ukuxhunywa kwe-butt-welding: womabili amaphethelo omzimba we-valve acutshungulwa abe i-butt-welding groove ngokuvumelana nezidingo zokushisela izinqe, okuhambisana nomsele wokushisela wamapayipi, futhi kugxilwe epayipini ngokushisela.
(2) uxhumano lwe-socket welding: zombili iziphetho zomzimba we-valve zicutshungulwa ngokuvumelana nezidingo ze-socket welding futhi zixhunywe nepayipi ngokusebenzisa i-socket welding.
Ukuxhuma okunezintambo kuyindlela elula yokuxhuma futhi kuvame ukusetshenziselwa ama-valve amancane. Umzimba we-valve ucutshungulwa ngokulandela intambo evamile, futhi kunezinhlobo ezimbili zentambo yangaphakathi kanye nentambo yangaphandle. Ihambisana nentambo epayipini. Ukuxhumana okuhlanganisiwe kuhlukaniswe ngezimo ezimbili:
(1) ukubekwa uphawu okuqondile: imicu yangaphakathi neyangaphandle idlala indima yokuvala ngokuqondile. Ukuze uqinisekise ukuthi ilunga alivuzi, ngokuvamile ngamafutha omthofu, i-hemp kanye nebhande le-PTFE lokugcwalisa impahla eluhlaza; Phakathi kwabo, ibhande le-PTFE eluhlaza lisetshenziswa kabanzi. Le nto inokumelana nokugqwala okuhle, umphumela omuhle kakhulu wokuvala, kulula ukuyisebenzisa futhi uyigcine, lapho ihlakazeka, ingasuswa ngokuphelele, ngoba iyingqimba yefilimu engeyona i-viscous, engcono kakhulu kunamafutha omthofu, i-hemp.
(2) ukubekwa uphawu okungaqondile: amandla okuqinisa isikulufu adluliselwa ku-gasket phakathi kwezindiza ezimbili, ukuze i-gasket idlale indima yokuvala.
Kunezinhlobo ezinhlanu zezintambo ezivame ukusetshenziswa:
(1) Intambo evamile yemethrikhi;
(2) I-inch common thread;
(3) Intambo yepayipi yokuvala intambo;
(4) intambo yepayipi lokuvala elingenamicu;
(5) Izintambo zamapayipi ezijwayelekile zaseMelika.
Isingeniso esijwayelekile simi kanje:
① Indinganiso yamazwe ngamazwe ISO228/1, DIN259, yochungechunge lwangaphakathi nangaphandle olufanayo, ikhodi G noma PF(BSP.F);
② Izinga laseJalimane i-ISO7/1, DIN2999, BS21, lekhoni yezinyo langaphandle, intambo ehambisana nezinyo langaphakathi, ikhodi ye-BSP.P noma i-RP/PS;
③ Izinga laseBrithani ISO7/1, BS21, intambo ye-taper yangaphakathi neyangaphandle, ikhodi PT noma i-BSP.TR noma i-RC;
④ I-American standard ANSI B21, intambo ye-taper yangaphakathi nangaphandle, ikhodi i-NPT G(PF), i-RP(PS), i-RC (PT) i-engeli yezinyo ingu-55°, i-NPT tooth Angle ingu-60°BSP.F, BSP.P ne-BSP. I-TR ngokuhlangene ibizwa ngokuthi amazinyo e-BSP.
Kunezinhlobo ezinhlanu zemicu yamapayipi ejwayelekile e-United States: i-NPT esetshenziswa okuvamile, i-NPSC yemicu yepayipi yangaphakathi eqondile yokufakwayo, i-NPTR yokuxhunywa kwezinduku eziqondisayo, i-NPSM yemicu yepayipi eqondile yokuxhunywa kwemishini (uxhumano lwemishini olulingana mahhala), kanye ne-NPSL. ngokuxhumeka okuxekethile kwemishini enamantongomane okukhiya. Okwentambo yepayipi elivaliwe elingenamicu (N: Indinganiso kazwelonke yaseMelika; P: ipayipi; T: Taper)
4 .Uxhumano lwe-Taper
Ukuxhumana kanye nomgomo wokuvala umkhono wukuthi lapho i-nati iqinisiwe, umkhono ungaphansi kwengcindezi, ukuze unqenqema lube odongeni olungaphandle lombhobho, futhi i-cone yangaphandle yomkhono ivalwe ngokuqinile ne-cone ye-sleeve. umzimba ohlangene ngaphansi kwengcindezi, ngakho-ke ungavimbela ngokuthembekile ukuvuza. Njengeama-valve ensimbi.Izinzuzo zalolu hlobo lokuxhuma yilezi:
(1) Ivolumu encane, isisindo esincane, isakhiwo esilula, ukuqaqa nokuhlanganisa kalula;
(2) i-relay eqinile, ububanzi bokusetshenziswa, ingamelana nomfutho ophezulu (1000 kg/square centimeter), izinga lokushisa eliphezulu (650℃) kanye nokudlidliza okunomthelela;
(3) bangakhetha izinto ezihlukahlukene, ezifanele ukuvimbela ukugqwala;
(4) ukunemba komshini akuphakeme;
(5) kulula ukuyifaka endaweni ephakeme.
5. Ukuxhumana kwe-clamp
Kuyindlela yokuxhumana esheshayo edinga amabhawodi amabili kuphela futhi ifanele ama-valve anengcindezi ephansi avame ukususwa.
Isikhathi sokuthumela: Feb-22-2022