Intsimbi yombhobho luhlobo lwentsimbi esetyenziselwa ukwenza iinkqubo zothutho lwemibhobho yeoyile negesi. Njengesixhobo sothutho olude lweoyile negesi yendalo, inkqubo yemibhobho inezibonelelo zoqoqosho, ukhuseleko kunye nokungaphazanyiswa.
Ukusetyenziswa kwentsimbi yombhobho
Intsimbi yombhobhoIintlobo zemveliso ziquka imibhobho yentsimbi engenamthungo kunye nemibhobho yentsimbi edityanisiweyo, enokwahlulwahlulwa ibe ziindidi ezintathu: iindawo zasezintabeni, iindawo ezinesalfure eninzi kunye nokubekwa phantsi kolwandle. Le mibhobho ineendawo zokusebenza ezinzima inemigca emide kwaye akulula ukuyigcina, kwaye ineemfuno ezingqongqo zomgangatho.
Imingeni emininzi ejongene nentsimbi yepayipi ibandakanya: uninzi lwamasimi eoyile negesi akwiindawo ezisemantla, amachibi omkhenkce, iintlango, kunye neendawo zolwandle, kwaye iimeko zendalo zinzima kakhulu; okanye ukuze kuphuculwe ukusebenza kakuhle kwezothutho, ububanzi bombhobho buhlala bukhula, kwaye uxinzelelo lokuhambisa luhlala lusanda.
Iipropati zeNsimbi yePipeline
Ukususela kuvavanyo olupheleleyo lwendlela yophuhliso lwemibhobho yeoyile negesi, iimeko zokubekwa kwemibhobho, iindlela eziphambili zokusilela kunye nezizathu zokusilela, intsimbi yepayipi kufuneka ibe neempawu ezilungileyo zoomatshini (udonga oluqinileyo, amandla aphezulu, ukuqina okuphezulu, ukumelana nokuguguleka), kwaye kufuneka ibe nobubanzi obukhulu, kufuneka ibe nobubanzi obukhulu, ukuwelda, ukumelana nokubanda kunye nobushushu obuphantsi, ukumelana nokugqwala (CO2), ukumelana namanzi olwandle kunye ne-HIC, ukusebenza kwe-SSCC, njl.
① Amandla aphezulu
Intsimbi yombhobho ayifuni nje kuphela amandla aphezulu okutsalwa kunye namandla okukhupha, kodwa ikwafuna ukuba umlinganiselo wokukhupha ube phakathi kwe-0.85 ~ 0.93.
② Ukuqina kwempembelelo ephezulu
Ukuqina okuphezulu kunokuhlangabezana neemfuno zokuthintela ukuqhekeka.
③Ubushushu obuphantsi botshintsho oluthambileyo nolubuthathaka
Iindawo ezinobungozi kunye neemeko zemozulu zifuna intsimbi yombhobho ibe nobushushu obuphantsi ngokwaneleyo bokutshintsha kwe-ductile-brittle. Indawo yokucheba ye-DWTT (Drop Weight Tear Test) iye yaba luphawu oluphambili lokulawula ukuthintela ukungaphumeleli kwe-brittle yemibhobho. Inkcazo ngokubanzi ifuna ukuba indawo yokucheba ye-fracture yesampuli ibe yi-≥85% kubushushu obuphantsi bokusebenza.
④Ukumelana okuhle kakhulu nokuqhekeka okubangelwa yi-hydrogen (HIC) kunye nokuqhekeka koxinzelelo lwe-sulfide (SSCC)
⑤ Ukusebenza kakuhle kwe-welding
Ukudityaniswa kakuhle kwentsimbi kubaluleke kakhulu ukuqinisekisa ukuthembeka kunye nomgangatho wokudityaniswa kwepayipi.
Imigangatho yeNsimbi yePipeline
Okwangoku, imigangatho ephambili yobugcisa yeepayipi zentsimbi ezithutha ioyile negesi ezisetyenziswa kwilizwe lam ibandakanyaI-API 5L, DNV-OS-F101, ISO 3183, kunye ne GB/T 9711, njl. Imeko ngokubanzi imi ngolu hlobo lulandelayo:
① I-API 5L (inkcazo yombhobho womgca) yinkcazo eyamkelwe ngokubanzi eyenziwe yiMaine Petroleum Institute.
② I-DNV-OS-F101 (inkqubo yemibhobho yenqanawa engaphantsi kolwandle) yinkcazo eyenzelwe ngokukodwa yiDet Norske Veritas yemibhobho yenqanawa engaphantsi kolwandle.
③ I-ISO 3183 ngumgangatho owenziwe yi-International Organisation for Standardization malunga neemeko zokuhanjiswa kwemibhobho yentsimbi yokuhambisa ioyile negesi. Lo mgangatho awubandakanyi uyilo kunye nokufakelwa kwemibhobho.
④ Inguqulelo yamva nje ye-GB/T 9711 yinguqulelo ka-2017. Le nguqulelo isekelwe kwi-ISO 3183:2012 kunye ne-API Spec 5L 45th Edition. Isekelwe kuzo zombini. Ngokuhambelana nemigangatho emibini ekhankanyiweyo, kuchazwe amanqanaba amabini eenkcukacha zemveliso: i-PSL1 kunye ne-PSL2. I-PSL1 inika umgangatho osemgangathweni wombhobho womgca; i-PSL2 yongeza iimfuno eziyimfuneko kubandakanya ukwakheka kweekhemikhali, ukuqina kwe-notch, iimpawu zamandla kunye novavanyo olongezelelweyo olungonakalisiyo (NDT).
I-API SPEC 5L kunye ne-ISO 3183 ziinkcukacha zemibhobho yomgca ezinempembelelo kwihlabathi liphela. Ngokwahlukileyo koko, uninzi lweenkampani zeoyile ehlabathini ziqhele ukwamkelaIinkcukacha ze-API SPEC 5L njengeenkcukacha ezisisiseko zokuthengwa kwemibhobho yentsimbi yepayipi.
Ulwazi lwe-odolo
Isivumelwano soku-odola intsimbi yepayipi kufuneka siquke olu lwazi lulandelayo:
① Ubungakanani (ubunzima obupheleleyo okanye ubungakanani obupheleleyo beepayipi zentsimbi);
② Inqanaba eliqhelekileyo (PSL1 okanye PSL2);
③Umbhobho wentsimbiuhlobo (olungenamthungo okanyeumbhobho odibeneyo, inkqubo ethile yokuwelda, uhlobo lokuphela kombhobho);
④Isekelwe kwimigangatho, efana ne-GB/T 9711-2017;
⑤ uhlobo lwentsimbi;
⑥Ububanzi bangaphandle kunye nobukhulu bodonga;
⑦Ubude kunye nohlobo lobude (olunganqunyulwanga okanye olunganqunyulwanga);
⑧ Qinisekisa ukuba kuyimfuneko ukusebenzisa isihlomelo.
Amanqanaba emibhobho yentsimbi kunye namanqanaba entsimbi (GB/T 9711-2017)
| I-Normative levelsteel | inqanaba lombhobho wentsimbi | inqanaba lesinyithi |
| I-PSL1 | L175 | A25 |
| L175P | A25P | |
| L210 | A | |
| L245 | B | |
| L290 | X42 | |
| L320 | X46 | |
| L360 | X52 | |
| L390 | X56 | |
| L415 | X60 | |
| L450 | X65 | |
| L485 | X70 | |
| I-PSL2 | L245R | BR |
| L290R | X42R | |
| L245N | I-BN | |
| L290N | X42N | |
| L320N | X46N | |
| L360N | X52N | |
| L390N | X56N | |
| L415N | X60N | |
| L245Q | I-BQ | |
| L290Q | X42Q | |
| L320Q | X46Q | |
| L360Q | X52Q | |
| L390Q | X56Q | |
| L415Q | X60Q | |
| L450Q | X65Q | |
| L485Q | X70Q | |
| L555Q | X80Q | |
| L625Q | X90Q | |
| L690Q | X100M | |
| L245M | BM | |
| L290M | X42M | |
| L320M | X46M | |
| L360M | X52M | |
| L390M | X56M | |
| L415M | I-X60M | |
| L450M | X65M | |
| L485M | X70M | |
| L555M | X80M | |
| L625M | X90M | |
| L690M | X100M | |
| L830M | X120M |
Ixesha lokuposa: Jan-30-2023