1.Conditions kanye namalungiselelo wokuhlola ingcindezi
1.1Ukwakhiwa koHlelo lwePipeline kuqediwe, futhi kuhlangabezana nezidingo zokuklama nokucaciswa.
1.2Umsebenzi we-Welding uqediwe ngemuva kokuhlanganiswa kwe-rack kanye ne-pipe rack kufakiwe. Ukutholwa kwe-ray kufinyelele ngokugcwele ukucaciswa kwedizayini futhi kwaphumelela ukuhlolwa. AmaWelds nezinye izindawo zokuhlola okufanele zihlolwe azipendiwe futhi zifakwe.
1.3Igeji yokuhlola ukuhlolwa iqinisekisiwe, futhi ukunemba kungamazinga ayi-1.5. Inani eliphelele-letafula lethebula kufanele libe ngu-1.5 kuye ku-2 amahlandla alinganiswe ekucindezelweni okukhulu.
1.4Ngaphambi kokuba kuhlolwe, awukwazi ukubamba iqhaza ohlelweni lokuhlola, imishini yezesekeli, futhi wengeze ilebula elimhlophe lokupenda ngelebula elimhlophe lokupenda elinepuleti elimhlophe.
I-1.5Water kufanele isetshenziselwe ukuhlanza amanzi, futhi okuqukethwe kwe-chloride emanzini akumele kwedlule ku-25 × 10-6 (25ppm).
I-1.6Temporary Pipelecline Ukuqiniswa Kwezivivinyo kufanele kuqinisekiswe futhi kuthembeke ngemuva kokuhlolwa.
1.7Bheka ukuthi wonke ama-valves epayipi avulekile, ngabe amaphakethe angeziwe, futhi amise umnyombo we-valve wesisekelo se-valve, bese usetha kabusha kuze kube kushaywa.
Inqubo yokuhlola yokuhlola ye-2.process Pipeline
2.1. Ingcindezi yokuhlola yepayipi izikhathi eziyi-1.5 ukucindezela kokuqamba.
2.2. Lapho ipayipi nemishini ihlolwa njengohlelo, ingcindezi yokuhlola yepayipi ilingana noma ngaphansi kwengcindezi yokuhlola yedivayisi. Umnyombo
2.3. Lapho umjovo wamanzi wohlelo, umoya kufanele ukhathele. Iphuzu lokuphuma komoya kufanele libe endaweni ephezulu kakhulu lepayipi bese ufaka i-valve eqeda amandla.
2.4. Amapayipi anezikhundla ezinkulu kufanele alinganiswe ekucindezelweni kokuhlolwa kwe-Test Medium. Ukucindezela kokuhlolwa kwepayipi eliwuketshezi kufanele kube ngaphansi kwengcindezi ephezulu kakhulu yamaphoyinti, kepha iphuzu eliphansi kakhulu lephuzu eliphansi akumele lidlule ukubekezelela ukwakheka kwepayipi.
2.5. Lapho ukucindezela kokuhlola, ukukhuphula kufanele kwenziwe kancane. Ngemuva kokuthi ingcindezi yokuhlola ifinyelelwe, ingcindezi yokucindezela kufanele ibe yimizuzu eyi-10. Ngaphandle kokuvuza, akukho deformation okufanelekile, bese kuthi ingcindezi yokuhlola incishiswa ekucindezelweni kwe-design. Umnyombo
2.6. Ngemuva kokuthi isivivinyo sesiphelile, ipuleti elingaboni kufanele lisuswe ngesikhathi sokuqeda amanzi. Ngesikhathi sokudonsa, ingcindezi engemihle kufanele ivinjelwe, futhi akukho drainage ingakhishwa noma kuphi. Lapho ukuvuza kutholakala ngesikhathi senqubo yokuhlola, akuvunyelwe ukuphathwa ngengcindezi. Ngemuva kokuqeda iziphambeko, ukuvivinya kufanele kuphinde kwahlelwa kabusha.
2.7. Ukuhlolwa okuvuzayo kwenziwa ngemuva kokuhlolwa kwengcindezi, futhi i-Test Medium yacindezelwa umoya ocindezelwe.
2.8. Ingcindezi yokuhlolwa kokuvuza ingcindezi yokuqamba. Ukuhlolwa kokuvuza kufanele kugxile ekubhekeni incwadi ye-filler. I-Flange noma intambo ixhumeke kwi-valve engenalutho, i-valve eqeda amandla, kanye ne-valve yokudonsa.
3. Ipayipi yezandla evunguza futhi lihlanza
3.1. Izidingo Zobuchwepheshe
3.1.1 Ipayipi lenqubo kufanele lishaywe futhi lihlanzeke ezigabeni (okukhulunywa ngazo njengokushaya).
3.1.2 Indlela yokuqhuma inqunywa ngokuya ngezidingo zepayipi, okusebenzayo, kanye nokungcola ebusweni bepayipi. Ukulandelana kokuqhuma kuvame ukwenziwa ngokuhlelekile ngokulandelana komphathi, ukusekelwa, kanye namapayipi okuphuma.
3.1.3 Ngaphambi kokushaya, ithuluzi ohlelweni kufanele livikelwe, nebhodi le-pore, ukuhlunga i-valve nokumisa umgogodla we-valve kufanele kudilizwe, futhi kugcinwe kahle.
3.1.4 Ngesikhathi sokushaywa, ama-ducts akufanele angenele kudivayisi, futhi izitho zomzimba eziqhume ngaphandle kwemishini akufanele zifake ipayipi.
3.1.5 Imishini namapayipi angavunyelwe ukugezwa kufanele ahlukaniswe nohlelo lokuqhuma.
3.1.6 Ukuqhuma kwamapayipi kufanele kube nokugeleza ngokwanele. Ingcindezi yokuqhuma akumele yeqe ingcindezi yokuqamba. Izinga lokugeleza ngokuvamile alikho ngaphansi kwama-20m / s. Lapho ushaya, sebenzisa isando sokhuni ukuze ungqongqoze ishubhu. Ungalimazi ishubhu.
3.1.7 Cabanga ngokuqina kwegatsha lepayipi kanye nokulengiswa kwe-rack ngaphambi kokuqhuma, futhi ukuqiniswa kufanele kunikezwe uma kunesidingo.
3.2. Ukushaywa kwepayipi, indlela yokuhlanza
3.2.1 Ukuchithwa kwamanzi: I-Work Medium yipayipi lohlelo lwamanzi. Ukuhlanza kwamanzi kungafinyelela ukugeleza okuphezulu noma okungaphansi kwe-1.5m / s ngepayipi. Umbala wamanzi wokuthumela ngaphandle kanye nokusobala okusobala kuyahambisana nokuhlola okubukwayo emnyango. Ngemuva kokuthi ipayipi lifanelekile, amanzi kufanele aphelelwe isikhathi.
3.2.2 Ukuqhuma komoya: I-Work Medium yipayipi legesi. Noma ngubani ohlangabezana ne-valve kufanele ahlukanise i-flange yangaphambilini bese engeza i-axanger, bese usetha kabusha ngemuva kokuthi ipayipi lishaywa. Ingcindezi akumele yeqe ingcindezi yokuqamba yesitsha nepayipi, futhi izinga lokugeleza akufanele libe ngaphansi kwama-20m / s. Ngesikhathi senqubo yokushaya komoya, lapho kubhekwe ngentuthu nothuli, ukuhlolwa kwebhodi elihlosiwe lokhuni kubhalwe ethekwini elimhlophe, futhi akukho ukugqwala, uthuli, umswakama kanye neminye imfucumfucu ebhodini elifanele lemizuzu engu-5.
3.2.3 Ukushaywa kwesimugqa Ngaphambi kokuthi umusi uvunguze, ishubhu elifudumele kufanele likhuliswe kancane kancane ngokushaya, bese liphola ekushiseni kwemvelo ngokwemvelo. Umlomo wendawo eqeda amandla kamusi ugcotshwe phezulu, futhi ilogo iso. Ububanzi bepayipi lokuphelelwa amandla akufanele kube yincane kunobubanzi bepayipi elishayayo. Amazinga Eziqu: Faka esikhundleni ibhodi eliqondiwe kabili lilandelana. Ngaphansi kwezimo zazo zonke iziqu), kuyimfihlo yokuskena.
3.2.4 Ukusetha kabusha kwepayipi: Ngemuva kokuhlolwa kwepayipi nokushaya kuqeqeshiwe, ibhodi elingaboni kufanele lisuswe ngesikhathi esifanele ngokuya ngamarekhodi, nokulawula umnyombo we-valve, into yensimbi.
Isikhathi sePosi: Meyi-06-2022