Uqhagamshelo olujikethekileyo ngumzimba wevalve onamacangca kuzo zozibini iziphelo, ezihambelana neeflange kumbhobho, ngokubopha iflange efakwe kumbhobho. Uqhagamshelo olunamaphiko lolona hlobo luqhelekileyo lusetyenziswayo loqhagamshelo lwevalvu. Iiflange zine-convex (RF), indiza (FF), i-convex kunye ne-concave (MF) kunye namanye amanqaku. Ngokobume bomphezulu odibeneyo, unokwahlulwa ngokwezi ntlobo zilandelayo:
(1) uhlobo olugudileyo: kwivalve enoxinzelelo oluphantsi. Ukuqhubekeka kulula ngakumbi;
(2) uhlobo lweconcave kunye neconvex: uxinzelelo oluphezulu lokusebenza, unokusebenzisa i-gasket enzima;
(3) uhlobo lwe-tenon groove: i-gasket ene-deformation enkulu yeplastiki ingasetyenziswa ngokubanzi kwimidiya ephazamisayo, kwaye umphumo wokutywina ungcono;
(4) uhlobo lwe-trapezoidal groove: intsimbi yentsimbi e-oval njenge-gasket, isetyenziswe kwi-valve yokusebenza yoxinzelelo ≥64 kg / cm2, okanye ivalve yobushushu obuphezulu;
(5) Uhlobo lweLens: Igasket ikwimo yelensi, eyenziwe ngentsimbi. Isetyenziselwa iivalve zoxinzelelo oluphezulu kunye noxinzelelo lokusebenza ≥ 100kg / cm2, okanye iivalve eziphezulu zokushisa;
(6) Uhlobo lwe-O-ring: le yindlela entsha yokudibanisa i-flange, ngokuvela kwazo zonke iintlobo ze-rubber O-ring, kwaye ziphuhliswe, zithembeke ngakumbi kwisiphumo sokutywinwa kune-gasket ye-flat jikelele.
(1) Uqhagamshelo lwe-butt-welding: zombini iziphelo zomzimba wevalve zisetyenzwa zibe ngumjelo we-butt-welding ngokweemfuno ze-butt welding, ehambelana nomjelo we-welding we-mibhobho, kwaye igxininiswe kumbhobho ngokudibanisa.
(2) Uqhagamshelo lwe-socket welding: zombini iziphelo zomzimba wevalve zicutshungulwa ngokweemfuno ze-socket welding kwaye idityaniswe nombhobho ngokusebenzisa i-socket welding.
Uxhulumaniso lwemisonto yindlela efanelekileyo yokudibanisa kwaye isoloko isetyenziselwa iivalve ezincinci. Umzimba wevalvu ucutshungulwa ngokomsonto osemgangathweni, kwaye kukho iindidi ezimbini zemisonto yangaphakathi kunye neyangaphandle. Ngokuhambelana nomtya kumbhobho. Uqhagamshelo olunemisonto lohlulwe lwaba ziimeko ezimbini:
(1) ukutywinwa ngokuthe ngqo: imicu yangaphakathi nangaphandle idlala indima yokutywina ngokuthe ngqo. Ukuze kuqinisekiswe ukuba i-joint ayivuzi, rhoqo ngeoli ye-lead, i-hemp kunye ne-PTFE ibhanti yokuzalisa izinto eziluhlaza; Phakathi kwabo, ibhanti le-PTFE ekrwada lisetyenziswa kakhulu. Esi sixhobo sinokumelana ne-corrosion, isiphumo esihle sokutywinwa, kulula ukuyisebenzisa kunye nokugcina, xa ichithwa, inokususwa ngokupheleleyo, kuba ifilimu ye-non-viscous, ingcono kakhulu kuneoli ekhokelayo, i-hemp.
(2) ukutywinwa ngokungathanga ngqo: amandla e-screw tightening adluliselwa kwi-gasket phakathi kweenqwelo-moya ezimbini, ukuze i-gasket idlale indima yokutywina.
Kukho iindidi ezintlanu zemisonto esetyenziswa ngokuqhelekileyo:
(1) I-Metric common thread;
(2) I-intshi yentambo eqhelekileyo;
(3) Umsonto wokutywina wombhobho;
(4) umsonto wombhobho wokutywina ongenamisonto;
(5) Imisonto yombhobho esemgangathweni yaseMelika.
Intshayelelo ngokubanzi imi ngolu hlobo lulandelayo:
① Umgangatho wamazwe ngamazwe ISO228/1, DIN259, kumsonto ofanayo wangaphakathi nangaphandle, ikhowudi G okanye PF(BSP.F);
② umgangatho waseJamani ISO7/1, DIN2999, BS21, kwikhowuni yezinyo yangaphandle, intambo yangaphakathi ehambelana nezinyo, ikhowudi ye-BSP.P okanye i-RP/PS;
③ umgangatho waseBritani ISO7/1, BS21, intambo yetaper yangaphakathi nangaphandle, ikhowudi ye-PT okanye i-BSP.TR okanye i-RC;
④ I-American standard ANSI B21, intambo ye-taper yangaphakathi nangaphandle, ikhowudi ye-NPT G (PF), i-RP (PS), i-RC (PT) i-Angle yezinyo yi-55 °, i-NPT yezinyo i-Angle yi-60 ° BSP.F, i-BSP.P kunye ne-BSP. I-TR ngokudibeneyo ebizwa ngokuba ngamazinyo e-BSP.
Kukho iindidi ezintlanu zemisonto yombhobho eqhelekileyo eUnited States: i-NPT yokusetyenziswa ngokubanzi, i-NPSC yeentambo ezithe ngqo zangaphakathi zombhobho wokufakelwa, i-NPTR yoqhagamshelo lwentonga yesikhokelo, i-NPSM yeentambo zombhobho othe tye wodibaniso loomatshini (uqhagamshelo olungena simahla), kunye neNPSL. ukulungiselela uqhagamshelo lomatshini oludityanisiweyo kunye namandongomane okutshixa. Yeyomsonto wombhobho otywiniweyo ongafakwanga (N: umgangatho wesizwe saseMelika; P: umbhobho; T: Taper)
4 .Uqhagamshelwano lweTaper
Ukudityaniswa kunye nomgaqo wokutywinwa komkhono kukuba xa i-nut iqinisiwe, umkhono uphantsi koxinzelelo, ukwenzela ukuba i-eddge ibe yincinci eludongeni olungaphandle lombhobho, kwaye i-cone yangaphandle yomkhono ivalwe ngokuqinileyo kunye nekhoni ye-sleeve. umzimba odibeneyo phantsi koxinzelelo, ngoko unokuthintela ngokuthembekileyo ukuvuza. Njengeiivalvu zesixhobo.Iinzuzo zolu hlobo loqhagamshelwano zezi:
(1) Umthamo omncinci, ubunzima obulula, isakhiwo esilula, ukuchithwa ngokulula kunye nokuhlanganisa;
(2) i-relay eyomeleleyo, uluhlu olubanzi losetyenziso, inokumelana noxinzelelo oluphezulu (1000 kg/square centimeter), ubushushu obuphezulu (650℃) kunye nokungcangcazela;
(3) unokukhetha izinto ezahlukeneyo, ezifanelekileyo zokuthintela ukubola;
(4) ukuchaneka komatshini akukho phezulu;
(5) kulula ukuyifaka kwindawo ephakamileyo.
5. Uqhagamshelo lokubamba
Yindlela yokudibanisa ekhawulezayo efuna iibholiti ezimbini kuphela kwaye ifanelekile kwiivalve eziphantsi zoxinzelelo ezihlala zisuswe.
Ixesha lokuposa: Feb-22-2022