1.Imibandela kanye Namalungiselelo Okuhlola Ingcindezi
1.1 Ukwakhiwa kwesistimu yamapayipi kuqediwe, futhi ihlangabezana nezidingo zokuklama kanye nemininingwane.
1.2 Umsebenzi wokushisela uqedwa ngemva kokufakwa kwe-rack rack kanye nendawo yokubeka ipayipi.Ukutholwa kwe-ray kufinyelele ngokugcwele ezincazelweni zedizayini futhi kwaphumelela ekuhlolweni.Ama-welds nezinye izindawo zokuhlola okufanele zihlolwe azipendiwe futhi azifakiwe.
1.3Isikali somfutho wokuhlola siqinisekisiwe, futhi ukunemba kungamazinga angu-1.5.Inani eliphelele lesilinganiso sethebula kufanele libe izikhathi ezingu-1.5 kuya kwezi-2 uma kulinganiswa ukucindezela okukhulu.
1.4Ngaphambi kokuhlolwa, awukwazi ukubamba iqhaza ohlelweni lokuhlola, okokusebenza kanye nezinsiza, bese wengeza ilebula kapende omhlophe onombala omhlophe onepuleti eliyimpumputhe.
1.5Amanzi kufanele asetshenziselwe ukuhlanza amanzi, futhi okuqukethwe kwe-chloride emanzini akufanele kudlule u-25 × 10-6 (25ppm).
1.6Ukuqiniswa kwepayipi kwesikhashana kokuhlolwa kufanele kuqinisekiswe futhi kuthembeke ngemva kokuhlolwa.
1.7Hlola ukuthi wonke ama-valve epayipini avuliwe yini, noma amaphedi engeziwe, bese umisa umgogodla wevalvu, bese usetha kabusha kuze kube yilapho ishaywa.
2.Process Pipeline Test Pressure Process
2.1.Ingcindezi yokuhlola ipayipi iphindwe izikhathi ezingu-1.5 kunengcindezi yokuklama.
2.2.Lapho ipayipi nemishini kuhlolwa njengesistimu, ingcindezi yokuhlola yepayipi ilingana noma ingaphansi kokucindezela kokuhlola kwedivayisi.Ingqikithi
2.3.Lapho umjovo wamanzi wesistimu, umoya kufanele uphele.Indawo yokukhipha umoya kufanele ibe sendaweni ephakeme kakhulu yepayipi futhi yengeze ivalvu yokukhipha umoya.
2.4.Amapayipi anezikhundla ezinkulu kufanele akalwe ekucindezelweni kokuhlola kwendawo yokuhlola.Ingcindezi yokuhlola yepayipi eliwuketshezi kufanele ibe ngaphansi kokucindezela kwephoyinti eliphezulu kakhulu, kodwa indawo ephansi kakhulu yephuzu elincane akumele idlule ukubekezelela ukwakheka kwamapayipi.
2.5.Lapho ukucindezela kokuhlolwa, ukukhushulwa kufanele kwenziwe kancane.Ngemuva kokuthi ukucindezela kokuhlolwa kufinyelelwe, ingcindezi yokucindezela kufanele ibe imizuzu eyi-10.Ngaphandle kokuvuza, akukho deformation efanelekayo, bese ukucindezela kokuhlola kuncishiswa ekucindezelweni kokuklama.Ingqikithi
2.6.Ngemuva kokuthi ukuhlolwa sekuphelile, ipuleti eliyimpumputhe kufanele lisuswe ngesikhathi ukuze kukhishwe amanzi.Ngesikhathi sokukhipha amanzi, ukucindezela okungalungile kufanele kuvinjwe, futhi akukho manzi angakhishwa noma yikuphi.Uma ukuvuza kutholakala phakathi nenqubo yokuhlola, akuvunyelwe ukuphathwa ngokucindezela.Ngemuva kokuqeda amaphutha, ukuhlolwa kufanele kuhlolwe kabusha.
2.7.Ukuhlolwa kokuvuza kwenziwa ngemva kokuba ukuhlolwa kwengcindezi kuqeqeshwe, futhi indawo yokuhlola yacindezelwa umoya ocindezelweyo.
2.8.Ingcindezi yokuhlolwa kokuvuza ingcindezi yokuklama.Ukuhlolwa kokuvuza kufanele kugxile ekuhloleni incwadi yokugcwalisa.I-flange noma intambo ixhunywe ku-valve engenalutho, i-valve yokukhipha umoya, ne-valve yokudonsa amanzi.
3. Craft ipayipi ephephetha kanye nokuhlanza
3.1.Izidingo zobuchwepheshe
3.1.1 Ipayipi lenqubo kufanele liphephethwe futhi lihlanzwe ngezigaba (okubhekiselwa kuzo njengokuvunguzayo).
3.1.2 Indlela yokufutha inqunywa ngokwezidingo zepayipi, indawo yokusebenza, kanye nokungcola okungaphezulu kwepayipi.Ukulandelana kokuvuthela ngokuvamile kwenziwa ngokulandelana ngokulandelana komphathi, ukusekela, namapayipi akhiphayo.
3.1.3 Ngaphambi kokuvuthela, insimbi ohlelweni kufanele ivikelwe, futhi ibhodi lembotshana, i-valve elawula isisefo kanye nomgogodla wevalve yokumisa kufanele kudilizwe, futhi zigcinwe kahle.
3.1.4 Ngesikhathi sokushaya, imigudu akumele ingene ocingweni, futhi izitho ezipheshulelwe ngaphandle kwempahla akumele zingene epayipini.
3.1.5 Izinto zokusebenza namapayipi okungavunyelwe ukuwashwa kufanele kukhishwe ohlelweni lokufutha.
3.1.6 Ukuphephetha kwepayipi kufanele kube nokugeleza okwanele.Ingcindezi yokuvuthela akumele idlule ingcindezi yokuklama.Izinga lokugeleza ngokuvamile alikho ngaphansi kuka-20m/s.Uma ufutha, sebenzisa isando sokhuni ukuze ushaye ishubhu.Ungalimazi ithubhu.
3.1.7 Cabangela ukuqina kwegatsha lamapayipi kanye nesibaya sokulenga ngaphambi kokuphephetha, futhi ukuqinisa kufanele kunikezwe uma kunesidingo.
3.2.Ukuvunguza kwamapayipi, indlela yokuhlanza
3.2.1 Ukugezwa kwamanzi: Indawo yokusebenza iyipayipi lohlelo lwamanzi.Ukugeza ngamanzi kungase kufinyelele ukugeleza okuphezulu noma kungabi ngaphansi kuka-1.5m/s epayipini.Umbala wamanzi athunyelwa kwamanye amazwe kanye nokuba sobala kuyahambisana nokuhlolwa okubonakalayo emnyango.Ngemuva kokuthi ipayipi selifanelekile, amanzi kufanele aphele ngesikhathi.
3.2.2 Ukuvunguza komoya: Indawo yokusebenza iyipayipi legesi.Noma ubani ohlangana nevalvu kufanele ahlukanise i-flange yangaphambilini bese engeza i-baffle, bese asetha kabusha ngemva kokushaywa kwepayipi.Ingcindezi akumele idlule ingcindezi yokuklama yesiqukathi nepayipi, futhi izinga lokugeleza akufanele libe ngaphansi kuka-20m/s.Ngesikhathi senqubo yokuvunguza komoya, lapho kukhishwa intuthu nothuli ngokubonakalayo, ukuhlolwa kwebhodi eliqondiwe ngokhuni lopende omhlophe kumiswa endaweni yokukhipha umoya, futhi akukho ukugqwala, uthuli, umswakama kanye nezinye izibi ebhodini eliqondiwe lemizuzu emi-5.
3.2.3 Ukufutha ngesitimu: Indawo yokusebenza iskenwa ngamapayipi esitimu ukuze kutholwe amapayipi esitimu.Ngaphambi kokuthi isitimu sivunguze, ishubhu elifudumele kufanele liphakanyiswe kancane ukuze livuthelwe, bese liphola liye ezingeni lokushisa lemvelo ngokwemvelo.Umlomo wendawo yokukhipha umoya wesitimu utshekele phezulu, futhi ilogo idonsa amehlo.Ububanzi bepayipi yokukhipha akufanele bube buncane kunobubanzi bepayipi elivuthelayo.Izindinganiso zokufaneleka: buyisela ibhodi eliqondiwe kabili zilandelana.Ngaphansi kwezimo zazo zonke iziqu), yiziqu zokuskena.
3.2.4 Ukusetha kabusha ipayipi: Ngemuva kokuthi ukuhlolwa kwepayipi nokuphephetha sekufanelekile, ibhodi elingaboni kufanele lisuswe ngesikhathi ngokuvumelana namarekhodi, kanye nevalvu elawulayo elawulayo, imise umgogodla we-valve, isici sensimbi.
Isikhathi sokuthumela: May-06-2022