Umbhobho onxibe i-CRA

Umbhobho onxibe intsingiselo:ikhabhoni -umbhobho wentsimbi onomhlwa obhityileyo{1}}ingxubevange enganyangekiyo (CRA) umaleko odityaniswe ngesinyithi nomgangatho ongaphakathi (onxibe), okanye ityhubhu ye-CRA eyahlukileyo efakwe ngaphakathi kwekhabhoni{2}}umbhobho wentsimbi (ofakwe imigca). Injongo kukugcina ukunganyangeki kwe-CRA kwi-corrosion apho ulwelo luchukumisa, ngelixa ugcina amandla kunye neendleko zesakhiwo sekhabhoni{4}}yesiphathi sentsimbi.

Kwi-oyile, irhasi, kunye nothutho lwekhemikhali, umhlwa ayisiyongxaki nje yokulondolozwa{0}}ichaza ubomi benkqubo yonke. Imibhobho yentsimbi yesiNtu yekhabhoni, nangona yomelele ngoomatshini, ithobeka ngokukhawuleza phantsi-segesi emuncu okanye ekuvelweni kwamanzi olwandle. Kwelinye icala, ukusebenzisa i-corrosion eqinileyo{4}}i-resistant alloy alloy (CRA) imibhobho ilungile ngokobugcisa kodwa ayizinzisi ngokoqoqosho.

Ukuvala lo msantsa, iinjineli zaphuhlisaI-CRA Clad kunye ne-Lined Pipe, isisombululo se-metallurgical esiphezulu esidibanisaamandla, ukunganyangeki komhlwa, kunye-neendleko ezifanelekileyokwimveliso yobunjineli enye.

UKhetho lweMathiriyeli yoMbhobho oChwethelweyo (Isiseko + Umaleko weCRA)

Embindini wayo, iCRA Claded Pipe yiumbhobho we-bimetallic, ukudibanisa iintsimbi ezimbini ezisebenza indima eyahlukileyo kodwa ehambelanayo:

Umaleko woLwakhiwo (Iqokobhe laNgaphandle):-inqanaba eliphezulu lekhabhoni okanye elisezantsi{1}}intsimbi yealloyi (umzekelo, API 5L X60/X65, ASTM A106, A333) ibonelela ngomthwalo womatshini{9}}umthamo wokuthwala.

Isithintelo sokuRhakala (uMaleko ongaphakathi):I-Nickel -esekelwe okanye i-alloys engenastainless njenge-316L, i-Inconel 625, i-Alloy 825, okanye i-Duplex 2205 yenza ulwelo oluzinzileyo olukhuselayo ngokuchasene ne-CO₂, H₂S, kunye ne-chloride{5}}i-fluid ecebileyo.

Oku kudityaniswa kwesinyithi kuphumeza into engeyiyo intsimbi iyodwa: umbhobho okwaziyo ukumelana noxinzelelo olugqithisileyo, ubushushu, kunye nohlaselo oludlekayo kangangamashumi eminyaka, nakwimimandla engaphantsi kolwandle okanye{0}}ephezulu yetyuwa.

Ngokungafaniyo nentsimbi yekhabhoni eqhelekileyo, imibhobho yeCRA ifuna ukudityaniswa okuthe ngqo phakathi komaleko wealloyi kunye nenxalenye yentsimbi. Iindlela ezisetyenziswayo zixhomekeke kwiimfuno zokusebenza kunye nobungqongqo benkonzo:

Inkqubo nganye ilandelwaunyango lobushushu, uvavanyo lwe-ultrasonic, kunye nokuhlolwa kwe-interfaceukuqinisekisa ukuzinza kwe-metallurgical kunye ne-CRA engaguqukiyo.

Izidibanisi zeNdawo kunye neeNqaku zoKwakha

Umbhobho onxibe ukuweldaikakhulu imalunga nokukhusela umaleko we-CRA kwindawo ye-weld{0}}kuba ungxululo, igalelo lobushushu, kunye ne-weld{1}}ekulungisweni kwesiphelo sigqibo sokuba ukuxhathisa umhlwa kuyagcinwa na emva kokubophana{2}}ngaphakathi. Abathengi badla ngokuchaza uhlobo oludityanisiweyo (i-girth weld / tie-kwi-spool), i-weld{5}}iimfuno zolungiselelo lokuphela, kunye nomda wokuhlola ukuze ukwenziwa kwe-offshore kungayeki ukusebenza kwakhona.

Ezinye ii-RFQs zibhala oku njengeukuwelda kombhobho; ulawulo olusebenzayo luyafana: lawula ukuvezwa kwe-CRA kwi-weld, sebenzisa izinto ezisetyenziswayo ezihambelanayo, kwaye uqinisekise umgangatho wokugqibela we-CRA kwindawo ye-weld.

• Weld-ukugqiba ukulungiselela:Chaza i-bevel + CRA edge yonyango ukuze iqhina{1}} linganqumli umva i-CRA ngokungalindelekanga.
• Igalelo lobushushu kunye nolawulo lokuxutywa:Gcina ikhemistri ye-CRA kwi-weld face izinzile ukuze uthintele "ibukeka ilungile, igqwese kamva" i-weld.
• Ujoliso lohlolo:Funa ububanzi be-NDT/PMI kwiindawo ze-weld ukuba isicwangciso sokwamkelwa kweprojekthi siyayifuna.

Ngombhobho we-CRA, "i-clad" kunye "ne-lined" ayizozinto zokuthenga ezinokutshintshisana. Ukhetho oluchanekileyo luxhomekeke kwinto enokungahambi kakuhle ekuqulunqeni nasekubopheni{1}}i-ins (i-CRA exposure at weld ends, liner movement, bond imfezeko), kunye nento ekufuneka ibonakaliswe yiprojekthi xa ifunyanwa. I-Octal Pipe isebenzisa olu luhlu lungezantsi ukugcina ii-RFQ zithelekiseka kunye nokuphepha ukubanjwa kade- kweqonga kwi-spoolbase.

Ii-alloys ze-CRA zikhethwa ngokwe-corrosion mechanism kunye ne-chemistry yenkqubo. Ubumbeko oluqhelekileyo lubandakanya:

Ezi ndibaniselwano ziqinisekisa ukubaukunyaniseka koomatshini kunye nokukhuselwa kokubolangaxeshanye ziphunyezwe-ngaphandle komthwalo weendleko zeCRA epheleleyo yokwakha.

A Umbhobho we-CRAisisombululo sivame ukucaciswa xa i-carbon steel iyodwa ayikwazi ukunyamezela ulwelo oluveliswayo phezu kobomi bokuyila, kodwa umbhobho we-CRA ogcweleyo oqinileyo awunoqoqosho. Ezona zinto zibangelayo ziquka umngcipheko wokudleka kweCO₂, iinkxalabo zenkonzo emuncu, ukuphatha{1}ikloridi ephezulu, kunye nemigca ephuma elunxwemeni apho ufikelelo lolungiso lulinganiselwe. Kwezi meko, injongo yokuthenga ayiyo "CRA kuyo yonke indawo," kodwa yindawo emanzi ye-CRA elawulwayo enokuxelwa kwangaphambili kunye nobungqina bokuhlola.

Imibhobho ye-CRA Clad ifakwe kwihlabathi jikelele kwiindawo ezingqongileyo apho umngcipheko wokukhula kunye nemfuno yesakhiwo idibana khona:

• Iindlela zokuqukuqela kwamanzi anzulu kunye nobuninzi bolwandle olungaphantsi kolwandleethwele ulwelo multiphase
• Inaliti ye-CO₂ kunye neenkqubo zokubuyisela eziphuculweyo
• Ukukhutshwa kwakhona kwamanzi kude nonxweme kunye nezityalo zokukhupha ityuwa
• Amaziko okucoca kunye nepetrochemicalukucubungula i-acidic okanye i-chloride media
• Amashishini anamandla kunye neekhemikhaliphantsi kobushushu obuphezulu kunye nemijikelezo yoxinzelelo

Ngengqibelelo ye-CRA iqinisekisiwe phantsiNACE MR0175 / ISO 15156kwayeAPI 5LD, le mibhobho ingasebenza iminyaka engama-20-30 ngokulungiswa okuncinci.

Kubathengi abathelekisayoabavelisi bemibhobho enxibekunye nofanelekileyoumboneleli wombhobho onxibe, I-advanteji ye-Octal Pipe ibonisa kwiinkcukacha zonikezelo ezidla ngokubangela ukubamba iprojekthi: sitshixa indlela yolwakhiwo lwe-clad/liner kwi-RFQ, silawula i-weld -isiphelo sokulungela ukuze iindawo ezidibanisayo zingavezi okanye zonakalise umaleko we-CRA, kwaye ugcine ukulandeleka kuqinile ukuze imathiriyeli ye-CRA kunye{1}}nomphathi wentsimbi{1}}ukwazi ukuxolelaniswa. Ngokwenyani, oko kuthetha ukuba ukuthunyelwa kwempahla kuhanjiswe kunye nee-ID zombhobho ezihambelanayo, inqwaba ecacileyo{3}}yenqanaba lokumakishwa, kunye neseti yoxwebhu edibanisa umbhobho osisiseko kunye nomaleko we-CRA kuluhlu olufanayo lokuhanjiswa{4}}ukuze amaqela aqulunqiweyo anganyanzelwa kwakhona{5}}umsebenzi wokuchonga phambi kokuba udibanise.

• Ukhuselo-lumbini kwi-CO₂, H₂S, kunye neekloridi
• Ixesha elide-amandla olwakhiwo kunye neendleko ezicuthiweyo ze-CRA
• Iyahambelana ne-welding yomgangatho wepayipi kunye nokufakwa
• Ilungele amanzi anzongonzongo, iHPHT, kunye -nenkonzo yemibhobho emuncu
• Iqinisekisiwe kwi-API, i-ASTM, kunye neemfuno zangaphandle kwe-DNV

Qhagamshelana ngoku

FAQ

 

 

FAQ 1 - Loluphi uvavanyo lolwamkelo ekufuneka ndilucele kwi-API 5LD CRA ehonjisiweyo okanye umbhobho onemigca?

Ubuncinci, i-API 5LD idinga iUkuhlolwa kovavanyo lwe-hydrostatic emva kokugquma / i-lining kunye nonyango lobushushu, kwaye inkqubo yovavanyo kufuneka ibe nayoubungqina oburekhodiweyo boxinzelelo kunye nexesha lokubambangoko ubude ngabunye abunakuba "kugqithwa" ngaphandle kokuhlangabezana nemfuneko yovavanyo.

FAQ 2 - yintoni intsingiselo yombhobho ogqunywe kumbhobho we-ACRA RFQ?

Kwinkqubo yokuthengwa kwempahla,umbhobho onxibeyi carbon-isiseko sombhobho wentsimbi enei-corrosion{0}}i-alloy enganyangekiyo (CRA) umalekoidityaniswe kumphezulu wangaphakathi (unxibe), ngoko ke indawo emanzi yi-CRA ngelixa umbhobho wokuthwala unika amandla. I-API 5LD igubungela i-CRA i-clad (kunye ne-lined) ipayipi yomgca wensimbi ye-petroleum kunye neenkqubo zemibhobho yegesi yendalo.

FAQ 3 - Ndibathelekisa njani abavelisi bemibhobho ehonjisiweyo okanye umboneleli wombhobho onxibe ngaphandle kokumosha imijikelo yeRFQ?

Cela izinto ezintathu ngaphambili:(1)nokuba ikhowutienxibeokanyelinemigcaukuya kwi-API 5LD,(2)iimathiriyeli yombhobho onxibe(ibakala lesiseko + ibakala leCRA + isiseko sobukhulu beCRA), kunye(3)weld -ukugqiba ukulungela (indlela umaleko we-CRA/isiphelo somgca siphathwa ngayo iqhina-). Oku kuthintela "ixabiso elifanayo, ulwakhiwo olwahlukileyo" umgibe xa uthelekisa abavelisi bemibhobho enxibe.

FAQ 4 - Kufuneka ndichaze ntoni malunga nokuwelda kwemibhobho edityanisiweyo kwiindawo ezidityanisiweyo?

Kubaukuwelda kombhobho, undoqo kukugcina ukuxhathisa umhlwa kwe-CRA kuqhubeleka kulo lonke iqhina{0}}ku: chaza i-weld{1}}ulungiselelo lwesiphelo, ulawulo lokuvezwa kwe-CRA kwindawo ye-weld, kunye nojoliso lokujongwa kwiijoyinti zentsimi (ukuze uyilo lungayeki ukusebenza kwakhona). Ukuba i-RFQ ithiukuwelda kombhobho, yiphathe njengenjongo enye-kodwa gcina amagama esivumelwanoumbhobho onxibe.

Iziqinisekiso

 

Isatifikethi seCE

Isatifikethi se-ISO 9001

Isatifikethi se-API Q1

Isatifikethi se-ABS

Isatifikethi se-AP-5L

Isatifikethi se-API-5CT

 

Iifayile ezishisayo: I-CRA Clad Pipe, eTshayina iCRA Clad Pipe abavelisi, ababoneleli, umzi-mveliso