Chingwe cha API 5CT Chophulitsira Cholumikizira Chomaliza Chitoliro

Blast Joint ndi gawo lofunika kwambiri pa ntchito za mafuta ndi gasi, lopangidwa kuti liteteze chingwe cha chubu ndikuchepetsa kuwonongeka kwa madzi akunja. Limapangidwa pogwiritsa ntchito chitsulo chapamwamba kwambiri chokhala ndi mulingo wolimba kuyambira 28 mpaka 36 HRC malinga ndi NACE MR-0175.
Izi zimathandizira kuti ikhale yolimba komanso yolimba pamene zinthu zili zovuta.

Mwa kuyika bwino cholumikizira cha kuphulika moyang'anizana ndi mabowo a chitsime kapena pansi pa cholumikizira machubu panthawi yophwanya mchenga, zimapereka chitetezo chowonjezera ku chingwe cha machubu. Kapangidwe ka machubu olemera a cholumikizira cha kuphulikako kamateteza ku mphamvu zokokoloka komanso kupewa kuwonongeka kwa zida zopangira.

Kuti payipiyo ikhale ndi mainchesi amkati mwake, cholumikizira cha blast chimapangidwa kuti chikhale ndi mainchesi akunja ofanana ndi ma coupling olumikizidwa nacho. Izi zimathandiza kuti madzi aziyenda bwino m'dongosolo popanda zoletsa zilizonse zofunika.

Muzochitika zomwe kukhalapo kwa hydrogen sulfide (H2S) kukuvutitsa, Landrill ili ndi mphamvu yopangira ma blast joints omwe adapangidwira ntchito za H2S. Ma blast joints awa amapangidwa kuchokera ku zipangizo zotenthetsera kutentha zomwe zili pakati pa 18 ndi 22 HRC mogwirizana ndi zomwe zafotokozedwa mu NACE MR-0175. Kutsatira miyezo iyi kumaonetsetsa kuti ma blast joints akukana kuwonongeka kwa H2S ndipo kumasunga umphumphu wonse wa chingwe cha chubu m'malo okhala ndi H2S yambiri.

Ponseponse, cholumikizira cha kuphulika ndi gawo lofunikira kwambiri pakumaliza zitsime ndi ntchito zopangira, zomwe zimapereka chitetezo ndi moyo wautali ku chingwe cha chubu pamene zikusunga mawonekedwe abwino oyendera.