- Imibandela kanye namalungiselelo wengcindezi yokuhlolwa kwamapayipi wezandla
I.1.Uhlelo lwepayipi luqediwe futhi luhambisana nezidingo zemiklamo nemithethonqubo.
I.2.Igatsha, i-hanger nepayipi liqediwe, futhi ukutholwa kwe-ray fice sekufinyelele ekuhlolweni okuphelele, kanye nengxenye yesivivinyo, i-weld kanye nokunye kufanele kuhlolwe akupendwe futhi kufakwe.
I.3.Igeyimu yokuhlola ukuhlolwa iqinisekisiwe, ukunemba kusethelwa ku-1.5, kanye nenani eliphelele lethebula kufanele kube ngu-1.5 kuye ku-2 izikhathi zokucindezela okukhulu.
I.4.Ngaphambi kokuhlolwa, uhlelo lokuhlola, imishini nezinto ezinamathiselwe ngeke lubambe iqhaza ohlelweni lokuhlola, futhi isikhundla seBhodi Yezimpumputhe sisetshenziselwa ukufaka uphawu lwe-lacquer lacquer.
I.5.Amanzi okuhlola kufanele asetshenziswe ngamanzi ahlanzekile, futhi okuqukethwe kwe-chloride ion emanzini akumele kwedlule ku-25 × 10-6 (25 ppm).
I.6.Ipayipi lesikhashana lokuhlolwa liqiniswa, futhi ukuphepha nokwethembeka kufanele kuhlolwe.
I.7.Bheka ukuthi wonke ama-valves epayipini asesimweni esivulekile, ngabe ama-spacers angezwa, futhi umnyombo we-valve otholile uzosuswa, futhi ngemuva kokuhlanzwa kungasethwa kabusha.
2. Inqubo yokuhlolwa kwepayipi
2.1.Ingcindezi yokuhlola ipayipi izikhathi eziyi-1.5 ukucindezela komklamo.
2.2. Lapho ipayipi nemishini ivinjelwa njengohlelo, ingcindezi yokuhlola yepayipi ilingana noma ngaphansi kwengcindezi yokuhlola yedivayisi, futhi ingcindezi yokuhlola yedivayisi ayikho ngaphansi kwengcindezi yokuqamba amapayipi, futhi ingahlolwa ngokuya ngengcindezi yokuqamba amapayipi, futhi ingahlolwa ngokuya ngengcindezi yokuqamba amapayipi.
2.3.wUHen lolu hlelo luyafakwa, umoya kufanele ukhathele, iphuzu lokukhipha umoya kufanele libe yiphuzu eliphakeme kakhulu lepayipi, bese wengeza i-valve eqeda amandla.
2.4. Amapayipi anokwehluka okuphezulu, ingcindezi ye-static yohlobo lokuhlola kufanele ilinganiswe ekucindezelweni kokuhlola. Ukucindezela kokuhlolwa kwepayipi loketshezi kufanele kube ngaphansi kwengcindezi endaweni ephezulu kakhulu, kepha ingcindezi yephuzu eliphansi kakhulu akufanele idlule ezakhiweni zeshubhu.
2.5. Lapho ingcindezi icindezelwa, ukukhuphula kufanele kuncishiswe, futhi ngemuva kokucindezelwa kokuhlolwa, kulawulwa imizuzu eyi-10, futhi akukho deformation ngaphandle kokuvuza. Ingcindezi yokuhlola yehla engcindezi yokuqamba, imizuzu engama-30, futhi ingcindezi ayiwi, akukho ukuvuza okufanele.
2.6. Ngemuva kokuhlolwa, ipuleti elingaboni kufanele lisuswe ngesikhathi, futhi amanzi abekwe, futhi ingcindezi engemihle kufanele ivinjelwe lapho ikhishwa, futhi akufanele ikhiphe amanzi. Lapho ukuvuza kutholakala ngesikhathi sokuhlolwa, akufanele kucutshungulwe, ngemuva kokuqeda isici, kufanele kuhlolwe kabusha.
2.7.Ukuhlolwa okuvuzayo kwenziwa ngemuva kokudluliswa kwengcindezi, futhi i-test medium asetshenziswe umoya ocindezelwe.
2.8
3. Craft Piple Pile nokuhlanza
3.1. Izidingo zobuchwepheshe bezinqubo
3.1.1. I-Pipeline Pipeline kufanele ihlukaniswe futhi ihlanze (okukhulunywe ngayo njengokuhlanza).
3.1.2. Indlela yokuqhuma inqunywa ngokuya ngezidingo zokusetshenziswa kwepayipi, inqubo engcolile yobuso bokusebenza okuphakathi nendawo okuphakathi kunqunywa, futhi ukulandelana kwezinwele kuthathwa ngokuhambisana nomphathi, ipayipi legatsha, neshubhu lokukhipha, ne-tube.
3.1.3. Ngaphambi kokushaya, ithuluzi eliphakathi kohlelo kufanele livikelwe futhi lisuse ipuleti le-orifice, i-valve yokulungiswa kokuhlunga kanye nomzimba we-valve othosiwe, njll., Nokunye okunjalo.
3.1.4. Lapho ehlanza, ukungcola embhodlweni akufanele kufakwe imishini, futhi ukungcola okuqhume ngaphandle kwensiza ngeke ungene epayipini, kufakwa i-flange ye-valve.
3.1.5. Ukuhlanzwa kwepayipi kufanele kube nokugeleza ngokwanele, futhi ingcindezi ye-purge akumele yedlule ingcindezi yokuqamba, futhi izinga lokugeleza ngokuvamile alikho ngaphansi kwama-20 m / s. Lapho ugeza, faka isando sokhuni ukushaya ishubhu, futhi ugxile e-weld kanye nephansi lepayipi, kodwa akufanele kulimaze ipayipi.
3.1.6. Igatsha lamapayipi kufanele libhekwe ngaphambi kokuqhuma, futhi ukuqina kwe-HONNng kufanele kuqiniswe lapho kunesidingo.
3.2. Ukuhlanzwa kwepayipi, indlela yokuhlanza
3.2.1. I-Rinsing yamanzi: Ukusebenza okuphakathi yipayipi lohlelo lwamanzi. Ukuhlanza amanzi kungafinyelela isilinganiso esiphezulu sokugeleza noma kungabi ngaphansi kuka-1.5 m / s ku-tube. Kuyafaneleka ukuthola amanzi okuthekelisa nokubala ngomnyango. Ngemuva kokuthi ipayipi lihlanjululwe, amanzi kufanele aphelelwe isikhathi.
3.2.2.Ukuhlanzwa komoya: Ukusebenza okuphakathi kuhlanzwa kancane kancane ngezingxenye zomoya ezicindezelwe zamapayipi wegesi. Uma uhlangabezana ne-valve, kufanele ususe i-flange yangaphambili ebhodini le-docking, bese usetha kabusha ngemuva kokuthi ipayipi lishaywa. Ingcindezi akumele yedlule ingqungquthela yokuqamba nepayipi, futhi izinga lokugeleza akufanele libe ngaphansi kwama-20 m / s. Ngesikhathi sokuhlanza umoya, lapho igesi yokuphelelwa yithemba ingabhemi, itheku eliphumayo libekwe ethekwini eliphumayo ukuze kuhlolwe ithagethi lokhuni elahliwe, futhi akukho ukugqwala, uthuli, umswakama, nezinye izinto zomswakama epuleti elihlosiwe kumizuzu emi-5.
3.2.3.I-Steam Pishe: I-Work Medium ihlanzwe ngomusi ngepayipi le-steam. I-Steam ihlanzwe ngaphambi kokuthi ishubhu elifudumele kufanele lihambe kancane, bese liphola ngokwemvelo ekushiseni okukhona, bese liphakamisa ishubhu elifudumele, lisebenzele ngokuhlanzwa kwesibili, ngakho-ke ukuphindaphinda kuvame ukungabi ngaphansi kathathu. Igesi yokuphelelwa amandla esihlalweni se-vapor igxishwe phezulu, futhi uphawu luyabonakala ngamehlo. Ububanzi bepayipi lokuphelelwa amandla akufanele kube ngaphansi kobubanzi be-tube ye-purge. Okujwayelekile Okufanelekile: Izinjongo ezibuyiselwe kabili kwezikhathi ezimbili zilandelana, njengamabala abonakala esweni elinqunu kusayizi weplate eliphansi ngaphansi kwe-1 / cm2; Isikhathi sokuhlanza yimizuzu engu-15 (okusho ezimbili endabeni yokudlula, kudluliswa.
Isikhathi sePosi: Nov-25-2021