Ukuthi ukukhethwa kwendlela yokuxhuma phakathi kwe-valve uvemvane nepayipi noma okokusebenza kulungile noma cha kuzothinta ngokuqondile amathuba okugijima, ukuconsa, ukuconsa kanye nokuvuza kwevalve yepayipi. Izindlela zokuxhuma i-valve ezivamile zihlanganisa: uxhumano lwe-flange, uxhumano lwe-wafer, uxhumano lwe-butt welding, uxhumano lwe-threaded, uxhumano lwe-ferrule, uxhumano lwe-clamp, uxhumano lokuzivala kanye nezinye izinhlobo zokuxhuma.
A. Ukuxhumeka kwe-Flange
Ukuxhumana kwe-Flange kuyintoi-valve ye-butterfly ene-flangedenama-flange emikhawulweni yomibili ye-valve yomzimba, ehambisana nama-flange epayipini, futhi afakwe epayipini ngokubhowula ama-flange. Ukuxhumeka kwe-Flange kuyindlela yokuxhumana esetshenziswa kakhulu kuma-valve. Ama-Flange ahlukaniswe abe yi-convex surface (RF), indawo eyisicaba (FF), i-convex ne-concave surface (MF), njll.
B. Ukuxhumeka kwe-wafer
I-valve ifakwe phakathi kwama-flanges amabili, kanye nomzimba we-valve wei-wafer butterfly valvengokuvamile inembobo yokubeka ukuze kube lula ukufakwa nokubeka.
C. Ukuxhumeka kwe-Solder
(1) Ukuxhunywa kwezinqe zokushisela: Zombili iziphetho zomzimba we-valve zicutshungulwa zibe izisele zokushisela ezinqeni ngokuvumelana nezimfuneko zokushisela izinqe, ezihambisana nemisele yokushisela yepayipi, futhi igxiliswe epayipini ngokushisela.
(2) Uxhumano lwe-socket welding: Zombili iziphetho zomzimba we-valve zicutshungulwa ngokuya ngezidingo ze-socket welding, futhi zixhunywe nepayipi ngokushisela isokhethi.
D. Ukuxhumana okunentambo
Ukuxhuma okunemicu kuyindlela elula yokuxhuma futhi kuvame ukusetshenziselwa ama-valve amancane. Umzimba we-valve ucutshungulwa ngokwezinga ngalinye lentambo, futhi kunezinhlobo ezimbili zentambo yangaphakathi nentambo yangaphandle. Ihambisana nentambo esepayipini. Kunezinhlobo ezimbili zokuxhuma okuxubile:
(1) Ukuvalwa okuqondile: Imicu yangaphakathi neyangaphandle idlala indima yokuvala ngokuqondile. Ukuze kuqinisekiswe ukuthi ukuxhumana akuvuzi, kuvame ukugcwala ngamafutha omthofu, intambo ye-hemp kanye netheyiphu ye-PTFE eluhlaza; phakathi kwawo PTFE tape impahla eluhlaza isetshenziswa kabanzi; le nto inokumelana nokugqwala okuhle kanye nomphumela omuhle kakhulu wokuvala uphawu. Kulula ukuyisebenzisa futhi uyigcine. Lapho iqaqa, ingasuswa ngokuphelele ngoba iyifilimu enganamatheli, engcono kakhulu kunamafutha omthofu kanye nentambo ye-hemp.
(2) Ukubekwa uphawu okungaqondile: amandla okuqinisa intambo adluliselwa ku-gasket phakathi kwezindiza ezimbili, ukuze i-gasket idlale indima yokuvala.
E. ukuxhumana kwe-ferrule
Uxhumano lwe-ferrule lwakhiwe kuphela ezweni lami eminyakeni yakamuva. Uxhumano lwalo kanye nomgomo wokuvala ukuthi uma inati liqiniswa, i-ferrule ingaphansi kwengcindezi, ukuze umkhawulo we-ferrule ulume odongeni olungaphandle lwepayipi, futhi indawo yangaphandle yekhoni ye-ferrule ixhunywe ekuhlanganyeleni ngaphansi. ingcindezi. Ingaphakathi lomzimba lisondelene nendawo ecijile, ngakho ukuvuza kungavinjelwa ngokuthembekile. Njengama-valve ensimbi. Izinzuzo zalolu hlobo lokuxhuma yilezi:
(1) Usayizi omncane, isisindo esilula, isakhiwo esilula, ukuhlakazeka okulula nokuhlanganisa;
(2) Amandla okuxhumana aqinile, ububanzi obuningi bokusetshenziswa, ukumelana nokucindezela okuphezulu (1000 kg / cm 2), izinga lokushisa eliphezulu (650 ° C) nokushaqeka nokudlidliza;
(3) Izinhlobonhlobo zezinto zingakhethwa, ezifanele ukulwa nokugqwala;
(4) Izidingo zokunemba komshini aziphezulu;
(5) Ilungele ukufakwa endaweni ephakeme.
Njengamanje, ifomu lokuxhuma i-ferrule lamukelwe kweminye imikhiqizo yamavalvu anobubanzi obuncane ezweni lami.
F. Ukuxhumana okuthuthukile
Lena indlela yokuxhumana esheshayo, idinga kuphela amabhawodi amabili, futhii-valve yevemvane eyi-grooved ekuphelenikufanelekile ukucindezela okuphansiizivalo uvemvaneezivame ukuhlakazwa. njengama-sanitary valves.
G. Uxhumano oluziqinisayo lwangaphakathi
Wonke amafomu okuxhumana angenhla asebenzisa amandla angaphandle ukuze anciphise ingcindezi ye-medium ukuze kuzuzwe uphawu. Okulandelayo kuchaza ifomu lokuxhuma eliziqinisayo lisebenzisa ingcindezi ephakathi.
Indandatho yayo yokuvala ifakwe kukhoni yangaphakathi futhi yenza i-engeli ethile ohlangothini olubheke okuphakathi. Ukucindezela kwe-medium kudluliselwa ku-cone yangaphakathi bese kuba yindandatho yokuvala. Endaweni yekhoni ye-engeli ethile, amandla ezingxenye ezimbili akhiqizwa, enye ene-The central line of the body valve is parallel to outside, kanti enye icindezelwa odongeni lwangaphakathi lomzimba we-valve. Amandla okugcina angamandla aziqinisayo. Uma umfutho ophakathi umkhulu, amandla aziqinisayo abe mkhulu. Ngakho-ke, leli fomu lokuxhuma lifanele ama-valve aphezulu.
Uma kuqhathaniswa nokuxhumeka kwe-flange, kusindisa izinto eziningi kanye namandla, kodwa futhi kudinga ukulayisha kuqala okuthile, ukuze kusetshenziswe ngokuthembekile lapho ingcindezi ku-valve ingekho phezulu. Amavavu enziwe kusetshenziswa isimiso sokuziqinisa ngokwawo ngokuvamile amavavu anomfutho ophezulu.
Kunezinhlobo eziningi zokuxhuma kwe-valve, isibonelo, amanye ama-valve amancane angadingi ukususwa ahlanganiswe namapayipi; amanye ama-valve angewona awensimbi axhunywe ngamasokhethi nokunye. Abasebenzisi be-valve kufanele belashwe ngokuya ngesimo esithile.
Qaphela:
(1) Zonke izindlela zokuxhuma kufanele zibhekisele kumazinga ahambisanayo futhi zicacise amazinga okuvimbela ukufakwa kwevalvu ekhethiwe.
(2) Ngokuvamile, ipayipi nevalvu enobubanzi obukhulu kuxhunywa nge-flange, futhi ipayipi elinobubanzi obuncane kanye nevalvu kuxhunywe ngentambo.
Isikhathi sokuthumela: Jun-18-2022
