I-gasket iyingxenye yokuvala emile exazulula “ukugijima, ukukhipa, ukuconsa, nokuvuza”.Njengoba kunezakhiwo eziningi zokuvala ezimile, ngokwalezi zindlela zokuvala ezimile, ama-gaskets ayisicaba, ama-elliptical gaskets, ama-lens gaskets, ama-cone gaskets, ama-liquid gaskets, ama-O-rings, kanye nama-gaskets ahlukahlukene azivalayo avele ngokufanele.Ukufakwa okulungile kwe-gasket kufanele kwenziwe lapho isakhiwo sokuxhuma kwe-flange noma isakhiwo sokuxhuma esinezintambo, indawo yokuvala i-static kanye ne-gasket ngokungangabazeki ihlolwe, kanti ezinye izingxenye ze-valve ziqinile.
1. Ngaphambi kokufaka i-gasket, sebenzisa ungqimba lwe-graphite powder noma i-graphite powder ehlanganiswe namafutha (noma amanzi) endaweni yokuvala uphawu, i-gasket, intambo kanye ne-bolt kanye nezingxenye ezijikelezayo zamantongomane.I-gasket ne-graphite kufanele igcinwe ihlanzekile.
2. I-gasket kufanele ifakwe endaweni yokuvala ukuze igxilwe, ilungile, ingaphambuki, ingangeni emgodini we-valve noma iphumule ehlombe.Ububanzi bangaphakathi be-gasket kufanele bube bukhulu kunembobo yangaphakathi yendawo yokuvala, futhi ububanzi bangaphandle kufanele bube buncane kunobubanzi obungaphandle bendawo yokuvala, ukuze kuqinisekiswe ukuthi i-gasket icindezelekile ngokulinganayo.
3. Ingxenye eyodwa kuphela ye-gasket evunyelwe ukufaka, futhi ayivunyelwe ukufaka izingcezu ezimbili noma ngaphezulu phakathi kwezindawo zokuvala ukuze kuqedwe ukungabi khona kwegebe phakathi kwezindawo ezimbili zokuvala.
4. I-gasket e-oval kufanele ivalwe ukuze izindandatho zangaphakathi nangaphandle ze-gasket zihlangane, futhi iziphetho ezimbili ze-gasket akufanele zihlangane nephansi le-groove.
5. Ukuze kufakwe ama-O-rings, ngaphandle kokuthi indandatho ne-groove kufanele ihlangabezane nezidingo zokuklama, inani lokucindezela kufanele lifanele.Ukucaba kwezindandatho ezingenalutho zensimbi ngokuvamile kuba ngu-10% kuya ku-40%.Izinga lokuguqulwa kokucindezelwa kwama-O-rings enjoloba liyi-cylindrical.Ukubekwa uphawu okumile engxenyeni engenhla kungu-13% -20%;indawo yokuvala emile ingu-15% -25%.Ukuze uthole ukucindezela okukhulu kwangaphakathi, ukuguqulwa kokucindezela kufanele kube phezulu uma usebenzisa i-vacuum.Ngaphansi kwesisekelo sokuqinisekisa ukubekwa uphawu, isilinganiso esincane sokucindezelwa kokuguqulwa, kungcono, okunganweba impilo ye-O-ring.
6. I-valve kufanele ibe sesimweni esivulekile ngaphambi kokuba i-gasket ibekwe phezu kwekhava, ukuze ingaphazamisi ukufakwa nokulimaza i-valve.Lapho uvala isembozo, qondanisa indawo, futhi ungaxhumani ne-gasket ngokuyicindezela noma ukuyidonsa ukuze ugweme ukugudluka kanye nokuklwebheka kwe-gasket.Lapho ulungisa isikhundla sekhava, kufanele uphakamise isembozo kancane, bese usiqondanisa ngobumnene.
7. Ukufakwa kwama-bolted noma ama-threaded gaskets kufanele kube ngendlela yokuthi ama-gaskets asendaweni evundlile (ikhava ye-gasket yokuxhuma okufakwe imicu akufanele isebenzise ama-wrenches amapayipi uma kukhona indawo yokuqhafaza).Ukuqiniswa kwesikulufu kufanele kusebenzise indlela yokusebenza elinganayo, eshintshanayo, futhi ngisho nokusebenza, futhi amabhawudi kufanele aboshelwe ngokugcwele, acoceke futhi angaxegi.
8. Ngaphambi kokuba i-gasket icindezelwe, ingcindezi, izinga lokushisa, izakhiwo ze-medium, kanye nezici ze-gasket material kufanele ziqondwe ngokucacile ukuze kunqunywe amandla okuqinisa ngaphambili.Amandla okuqinisa ngaphambili kufanele ancishiswe ngangokunokwenzeka ngaphansi kwesimo sokuthi ukuhlolwa kwengcindezi akuvuzi (amandla amaningi okuqinisa ngaphambi kokuqina azolimaza kalula i-gasket futhi enze i-gasket ilahlekelwe ukuqina kwayo).
9. Ngemuva kokuthi i-gasket iqiniswe, kufanele kuqinisekiswe ukuthi kukhona igebe lokuqinisa ngaphambili kwesiqeshana sokuxhuma, ukuze kube khona indawo yokuqinisa ngaphambili lapho i-gasket ivuza.
10. Uma usebenza emazingeni okushisa aphezulu, ama-bolts azothola ukushisa okuphezulu kokushisa, ukuphumula kokucindezeleka, nokuguqulwa okukhulayo, okuholela ekuvuzeni ku-gasket futhi kudinga ukuqiniswa kokushisa.Ngokuphambene nalokho, ngaphansi kwezimo zokushisa eziphansi, ama-bolts azoncipha futhi adinga ukukhululeka okubandayo.Ukuqiniswa okushisayo kuwukucindezela, ukukhulula amakhaza kuwukukhulula ingcindezi, ukuqinisa okushisayo kanye nokukhulula okubandayo kufanele kwenziwe ngemva kokugcina izinga lokushisa lokusebenza amahora angu-24.
11. Uma i-gasket ewuketshezi isetshenziselwa indawo yokuvala, indawo yokuvala kufanele ihlanzwe noma iphathwe.Indawo yokubeka uphawu eyisicaba kufanele ihambisane ngemva kokugaya, futhi i-adhesive kufanele isetshenziswe ngokulinganayo (i-adhesive kufanele ihambisane nezimo zokusebenza), futhi umoya kufanele ukhishwe ngangokunokwenzeka.Isendlalelo sokunamathela ngokuvamile singu-0.1 ~ 0.2mm.Intambo yesikulufu iyafana nendawo yokuvala eyisicaba.Zombili izindawo zokuthintana kufanele ziboshwe.Lapho ingena, kufanele ibe sendaweni eqondile ukuze kube lula ukuphuma komoya.Iglue akufanele libe liningi kakhulu ukugwema ukuchitheka nokungcolisa amanye ama-valve.
12. Uma usebenzisa itheyiphu yefilimu ye-PTFE yokuvala intambo, indawo yokuqala yefilimu kufanele yelulwe ibe mncane futhi inamathiselwe endaweni engaphezulu yentambo;khona-ke i-tape eyeqile ekuqaleni kufanele isuswe ukuze ifilimu inamathele entanjeni ibe yisimo se-wedge.Ngokuya ngegebe lentambo, ngokuvamile ilimala izikhathi ezi-1 kuya kwezi-3.Isiqondiso esimazombezombe kufanele silandele isiqondiso se-screwing, futhi iphuzu lokugcina kufanele lihambisane nendawo yokuqala;donsa kancane ifilimu ibe yi-wedge shape, ukuze ubukhulu befilimu bube nesilonda esilinganayo.Ngaphambi kokungena, cindezela ifilimu ekugcineni kwentambo ukuze ifilimu ikwazi ukugoqwa emculweni wangaphakathi kanye nesikulufu;i-screwing kufanele ihambe kancane futhi amandla kufanele alingane;unganyakazi futhi ngemva kokuqinisa, futhi ugweme ukuphenduka, ngaphandle kwalokho kuyoba lula ukuvuza.
Isikhathi sokuthumela: Jan-14-2021