Uhlelo lwesiqandisi, uhlelo lwamanzi okupholisa, uhlelo lwamanzi esiqandisi kanye namapayipi ohlelo lokuncibilikisa amanzi, ama-flange, ama-valve, amaphampu oketshezi kanye nezitsha, njll., ekucindezelweni nasekushiseni okushintsha njalo isikhathi eside, yi-refrigerant, i-refrigerant, amanzi, umoya kanye nokunye okubolayo, isakhiwo sayo nezinto zayo kuzokwenzeka ngamazinga ahlukahlukene okuncipha noma ukuguquka, kuze kufike ezingeni lapho umkhawulo wezinga lengozi ungase uvele khona.
1. Ukulungiswa kokuguqulwa kwendawo kwepayipi
Ukuze kuqedwe ukuguquka kwendawo, kubalulekile ukuthola isizathu esakhiweni nasekusebenzeni. Njengombhobho wokukhipha umoya odongeni lokugcina umswakama obandayo ngokuqongelela umthwalo weqhwa obangelwa ukuguquka okukhulu, kufanele kuqiniswe umsebenzi wokuncibilikisa. Uma umbhobho umude kakhulu, ukuguquka okubangelwa yisikhala sebracket noma i-hanger, ibracket noma i-hanger kufanele kwandiswe. Uma ukuguquka kungekukhulu, kungathinti ukusetshenziswa okuqhubekayo, kungalinda ukulungiswa bese kulungiswa, kodwa kufanele kuqiniswe umsebenzi wokuhlola nokulungisa. Uma umbhobho ugobile kakhulu, ingxenye egobile yebhubhu inganqunywa ngemva kokuba isiqandisi esisebhubhuni sithululiwe bese sifakwa ku-corrector ukuze siqondiswe. Ukucindezela kuyadingeka ukuthi kube ngokulinganayo futhi kuhambe kancane, ungashayi nge-sledgehammer, bese umbhobho oqondile uxhunywa nombhobho wokukhipha umoya.
2. Ukulungiswa kwemifantu yamapayipi kanye nemigodi egobile
Uma imishini ingenawo amapayipi amakhulu, ngokuvamile sebenzisa indlela yokulungisa yokushisela. Uma ukuvuza kwegesi kuvuza, ukuvuza kwe-welding akufanele kube ngaphezu kwezikhathi ezimbili, noma kufanele kushintshwe ukuze kulungiswe ipayipi. Uma kushiselwa iphuzu lokuvuza, akuvunyelwe ukusebenza endaweni ezungezile nge-refrigerant ejiyile.
3. Ukulungiswa kwe-Flange
1) Hlola ukulayishwa kwangaphambili kwamabholithi lapho kuxhuma i-flange, uma ekhululekile, qinisa amantongomane ngokulinganayo nge-spanner ukuze wenze amandla afanayo, kodwa akufanele aqine kakhulu. Uma amabholithi egugile noma egqwalile kakhulu, amabholithi amasha kufanele ashintshwe.
2) I-gasket ye-asbestos ekuxhumeni kwe-flange igqwalile noma ishile, okuholela ekulahlekelweni kwamandla okuvala, futhi kufanele ithathelwe indawo yi-gasket entsha. Ngaphambi kokufaka esikhundleni se-gasket entsha, i-gasket yokuqala kufanele ikhuhlwe futhi ihlanzwe nge-parafini ukuze kuhlolwe ukuthi umugqa wokuvala we-flange ugqwalile noma wonakele. Uma kungekho nkinga ingathathelwa indawo yi-gasket entsha, ukuqinisa amabhawodi e-flange ngokulinganayo kungaba njalo. Uma ubuso bokuvala be-flange busengozini yokugqwala okukhulu noma ukulimala komugqa wokuvala, ungashintsha i-flange entsha noma uyilungise bese uyifakela ku-gasket entsha ukuvimbela ukusetshenziswa kokuvuza.
3) Umthungo wokushisela awuqinile, kufanele ulungiswe ngokushisela.
4) Uma ukushisela kubangela ukuthi i-flange igobe futhi ingahlangabezani nezidingo zokuhlanganiswa, kufanele iguqulwe futhi icutshungulwe noma ishintshwe.
5) Enqubweni yokufaka, uma umugqa ophakathi we-flanges ezimbili ungafani, ukwakheka kobuso bokuxhumana kwawo kungalingani, ipayipi kufanele linqunywe bese lishiselwe kabusha.
4. Ukulungiswa kwamavalvu
1) Ukufakwa esikhundleni sokupakisha. Indima eyinhloko yokupakisha ukuvimbela ukuvuza kwe-axial okusethwa yi-valve stem. Uma kwenzeka ukuvuza okuncane, i-packing gland ingaqina, njengokuvuza okungakhishwa, kufanele ithathe indawo yokupakisha. Ukufakwa esikhundleni kwe-valve stem kumele kufakwe isikulufu kuze kube sekupheleni, bese iphini lokupakisha liphuma, bese lilungele ukufakwa kwesikulufu ukuze kufakwe isikulufu, bese liqinisa i-gland.
2) Lungisa i-spool. Emaphrojekthini okupholisa umoya kanye nefriji, lapho ububanzi obukhulu be-valve buyi-diameter, i-spool incike kungqimba lwe-alloy e-pasteurized noma uphawu lwepulasitiki lwe-fluorine. Ingemuva le-spool libuye libe nengqimba ye-alloy e-pasteurized, ukuze lapho isiqu se-valve sikhishwe sifinyelele endaweni engezansi, singavala izinto ngaphandle kokuvuza ngaphandle kwesiqu se-valve.
Uma ivalvu ihlakazwa, qala uqondise isiqu sevalvu ukuze siphume, bese ushintsha i-spool ye-alloy efakwe i-pasteurized, futhi ngesikhathi esifanayo, isihlalo sevalvu kufanele sigaywe, ukuze i-spool nesihlalo sevalvu kuqine.
Nge-spool ye-valve encane ehlanganisiwe noma ye-brass, uphawu lwale valve luncike emgqeni wokuxhumana kwensimbi ukuze kutholakale, okubizwa ngokuthi uphawu lomugqa. Ngoba luwuphawu lomugqa, ngakho-ke isihlalo se-valve kanye ne-spool kufanele kugaywe ngokucophelela ukuze kutholakale umphumela wokuvala owanelisayo.
Ukulungiswa kwamavalvu sekuqediwe, kufanele kuhambisane nezidingo ezifanele zokuhlolwa kokungabi nomoya.
Uhlelo lwesiqandisi ekulungisweni kwevalvu yokuphepha nalo lufana kakhulu nolungenhla, kodwa ngenxa yengxube ethambile efakwe uphethiloli, ngokuvamile ngenxa yokucindezela ngokweqile kanye nokusebenza kwevalvu yokuphepha ngemva kwesikhathi, kunzima ukubuyela endaweni yokuqala, ngakho-ke lapho ingcindezi yehla iye ekucindezelweni kokuvala, ukuvala akukaqini. Ukuze kunqotshwe lesi sici, eminye imikhiqizo ithathelwe indawo yingxube ye-nickel-chromium-titanium (hard), noma nge-polytetrafluoroethylene esikhundleni salokho.
Isikhathi sokuthunyelwe: Okthoba-11-2023
