Nokuba ukukhethwa kwendlela yokudibanisa phakathi kwevalvu yebhabhathane kunye nombhobho okanye izixhobo kuchanekile okanye akunjalo kuya kuchaphazela ngokuthe ngqo amathuba okubaleka, ukuvuza, ukuvuza kunye nokuvuza kwevalvu yombhobho. Iindlela eziqhelekileyo zokudibanisa ivalvu ziquka: uqhagamshelo lweflange, uqhagamshelo lwe-wafer, uqhagamshelo lwe-butt welding, uqhagamshelo olunemisonto, uqhagamshelo lwe-ferrule, uqhagamshelo lwe-clamp, uqhagamshelo oluzivalayo kunye nezinye iindlela zoqhagamshelo.
A. Uqhagamshelo lweFlange
Uqhagamshelo lweFlange luyintoivalvu yebhabhathane ejijekileyoeneeflange kuzo zombini iziphelo zomzimba wevalvu, ezihambelana neeflanges ezikumbhobho, kwaye zifakelwa kumbhobho ngokubopha iiflanges. Uqhagamshelo lweFlange lolona hlobo loqhagamshelo olusetyenziswa kakhulu kwiivalvu. Iiflanges zahlulwe zaba ngumphezulu ongqukuva (RF), umphezulu othe tyaba (FF), umphezulu ongqukuva kunye nomphezulu ongqukuva (MF), njl.
B. Uqhagamshelo lwe-wafer
Ivalvu ifakwe phakathi kweeflange ezimbini, kwaye umzimba wevalvuivalvu yebhabhathane ye-waferidla ngokuba nomngxuma wokubeka izinto ukuze kube lula ukufaka nokubeka izinto.
C. Uqhagamshelo lweSolder
(1) Uqhagamshelo lwe-butt welding: Zombini iziphelo zomzimba we-valve zicutshungulwa zibe yi-butt welding grooves ngokweemfuno ze-butt welding, ezihambelana ne-welding grooves yombhobho, kwaye ziqiniswe kumbhobho ngokuwelda.
(2) Uqhagamshelo lwe-socket welding: Zombini iziphelo zomzimba wevalvu zicutshungulwa ngokweemfuno ze-socket welding, kwaye ziqhagamshelwe nombhobho nge-socket welding.
D. Uqhagamshelo olunemisonto
Uqhagamshelo olunemisonto luyindlela elula yoqhagamshelo kwaye ludla ngokusetyenziswa kwiivalvu ezincinci. Umzimba wevalvu ucutshungulwa ngokwemigangatho yomsonto ngamnye, kwaye kukho iintlobo ezimbini zomsonto wangaphakathi nomsonto wangaphandle. Uhambelana nomsonto okwipayipi. Kukho iintlobo ezimbini zoqhagamshelo olunemisonto:
(1) Ukuvala ngokuthe ngqo: Imisonto yangaphakathi neyangaphandle idlala indima yokuvala ngokuthe ngqo. Ukuqinisekisa ukuba uqhagamshelo aluvuzi, ludla ngokuzaliswa yioyile yelead, i-thread hemp kunye neteyipu yezinto eziluhlaza zePTFE; phakathi kwazo kusetyenziswa kakhulu iteyipu yezinto eziluhlaza zePTFE; le nto inokumelana nokugqwala okuhle kunye nesiphumo esihle kakhulu sokuvala. Kulula ukuyisebenzisa nokuyigcina. Xa uyichitha, ingasuswa ngokupheleleyo kuba yifilimu enganamatheliyo, nto leyo ingcono kakhulu kuneoyile yelead kunye ne-thread hemp.
(2) Ukuvala ngokungathanga ngqo: amandla okuqinisa intambo adluliselwa kwi-gasket ephakathi kwezi planes zimbini, ukuze i-gasket idlale indima yokuvala.
Uqhagamshelo lwe-E. ferrule
Uqhagamshelo lwe-ferrule luphuhliswe kwilizwe lam kwiminyaka yakutshanje. Umgaqo walo woqhagamshelo kunye nokutywinwa kukuba xa i-nut iqinisiwe, i-ferrule iphantsi koxinzelelo, ukuze umda we-ferrule ulume eludongeni lwangaphandle lombhobho, kwaye umphezulu wekhoni wangaphandle we-ferrule uqhagamshelwe kwijoyinti phantsi koxinzelelo. Ingaphakathi lomzimba lisondelelene nomphezulu onciphileyo, ngoko ke ukuvuza kunokuthintelwa ngokuthembekileyo. Ezifana neevalvu zezixhobo. Iingenelo zolu hlobo loqhagamshelo zezi:
(1) Ubungakanani obuncinci, ubunzima obulula, isakhiwo esilula, kulula ukusiqhaqha nokuhlanganisa;
(2) Amandla oqhagamshelo aqinileyo, uluhlu olubanzi lokusetyenziswa, ukumelana noxinzelelo oluphezulu (1000 kg/cm2), ubushushu obuphezulu (650 ° C) kunye nomothuko kunye nokungcangcazela;
(3) Iindidi ezahlukeneyo zezinto zingakhethwa, ezifanelekileyo zokulwa nokugqwala;
(4) Iimfuneko zokuchaneka komatshini aziphezulu;
(5) Ilungele ukufakwa kwindawo ephakamileyo.
Okwangoku, ifomu yoqhagamshelo lwe-ferrule iye yamkelwe kwezinye iimveliso zevalvu ezinobukhulu obuncinci kwilizwe lam.
F. Uqhagamshelo olunemiqolo
Le yindlela yokunxibelelana ngokukhawuleza, ifuna iibholiti ezimbini kuphela, kwayeivalvu yebhabhathane enomphetho ogobileyoifanelekile kuxinzelelo oluphantsiiivalvu zebhabhathaneezidla ngokuqhaqhwa, njengeevalvu zokucoca.
G. Uqhagamshelo lwangaphakathi oluziqinisayo
Zonke ezi fom zoqhagamshelo zingasentla zisebenzisa amandla angaphandle ukuthintela uxinzelelo lwesixhobo ukuze kufezekiswe ukutywinwa. Oku kulandelayo kuchaza uhlobo loqhagamshelo oluziqinisayo kusetyenziswa uxinzelelo oluphakathi.
Indandatho yayo yokutywina ifakwe kwikhowuni yangaphakathi kwaye yenza i-engile ethile icala lijonge kwi-medium. Uxinzelelo lwe-medium ludluliselwa kwikhowuni yangaphakathi emva koko luye kwi-sealing ring. Kumphezulu wekhowuni we-engile ethile, kuveliswa amandla amabini ezinto, enye ene-. Umgca ophakathi womzimba we-valve uhambelana nowangaphandle, kwaye enye icinezelwe eludongeni lwangaphakathi lomzimba we-valve. Amandla okugqibela ngamandla okuziqinisa. Okukhona uxinzelelo oluphakathi lukhulu, kokukhona amandla okuziqinisa aphezulu. Ke ngoko, olu hlobo loqhagamshelo lufanelekile kwiivalvu zoxinzelelo oluphezulu.
Xa kuthelekiswa noqhagamshelo lweflange, igcina izinto ezininzi kunye namandla abasebenzi, kodwa ikwafuna ukulayisha kwangaphambili okuthile, ukuze isetyenziswe ngokuthembekileyo xa uxinzelelo olukwivalvu lungaphezulu. Iivalvu ezenziwe ngomgaqo wokuziqinisa zihlala ziivalvu ezinoxinzelelo oluphezulu.
Kukho iindlela ezininzi zokudibanisa iivalvu, umzekelo, ezinye iivalvu ezincinci ezingadingi kususwa zidityaniswa ngemibhobho; ezinye iivalvu ezingezizo ezesinyithi ziqhagamshelwe ngeesokhethi njalo njalo. Abasebenzisi beevalvu kufuneka baphathwe ngokwemeko ethile.
Phawula:
(1) Zonke iindlela zoqhagamshelo mazibhekisele kwimigangatho ehambelanayo kwaye zicacise imigangatho yokuthintela ukufakwa kwevalvu ekhethiweyo.
(2) Ngokwesiqhelo, umbhobho omkhulu kunye nevalvu ziqhagamshelwe ngeflange, kwaye umbhobho omncinci kunye nevalvu ziqhagamshelwe ngentambo.
Ixesha lokuthumela: Juni-18-2022
