IBOP, choletsa kuphulika kwa mkati mwa top drive, chimatchedwanso top drive cock. Mu ntchito yobowola mafuta ndi gasi, kuphulika ndi ngozi yomwe anthu safuna kuiwona pamakina aliwonse obowola. Chifukwa imaika pachiwopsezo chitetezo cha anthu ndi katundu wa ogwira ntchito yobowola ndipo imabweretsa kuipitsidwa kwa chilengedwe. Nthawi zambiri, madzi othamanga kwambiri (madzimadzi kapena gasi), makamaka mpweya wokhala ndi matope ndi miyala, amatuluka kuchokera pamwamba pa chitsime pamlingo wokwera kwambiri, ndikupanga malo oopsa a zozimitsa moto. Chifukwa chachikulu cha ngoziyi chimachokera ku madzi omwe ali pakati pa miyala yapansi panthaka, yomwe imakhala ndi kuthamanga kwakukulu kosazolowereka. Pobowola mpaka nthawi imeneyi, kusinthasintha kwa kuthamanga kumachitika, ndipo kuphulika kumachitika nthawi zambiri. Ndi kufalikira kwa ukadaulo wobowola wosalinganika, mwayi woti kugwedezeka ndi kuphulika ndi waukulu kwambiri kuposa wa kubowola kolinganika kwachikhalidwe.
Imaphatikizidwa ndi zida zina ndi ukadaulo kuti itseke dzenje pamene kukankha ndi kuphulika kukuwonekera, kuti ndodoyo izitha kuwongolera kukankha ndi kuphulika kusanachitike kuphulika. Malinga ndi malo a njira yophulika, zida zomwe zili pa rig yobowolera zitha kugawidwa m'zigawo ziwiri: choletsa kuphulika kwa mkati, choletsa kuphulika kwa annular chozungulira pamutu pa chitsime ndi ram.
Mitundu ya BOP, ndi zina zotero. Chogulitsachi ndi mtundu wa choletsa kuphulika mu chingwe chobowola, chomwe chimatchedwanso top drive cock kapena plug valve. Choletsa kuphulika kwamkati cha top drive chomwe chimapangidwa ndi kampani yathu chimagwiritsa ntchito zinthu zapamwamba za E-grade ngati chipolopolo, ndipo kapangidwe kake kamakhala ndi thupi la valavu, mpando wa valve wapamwamba, kasupe wa mafunde, pakati pa valavu, chogwirira ntchito, chipika chodutsa, chogwirira, mphete yosungira yotsika, mpando wa valve wotsika, mphete yosungira yotsika, mphete yothandizira, mphete yosungira dzenje, chisindikizo cha O-ring, ndi zina zotero. Choletsa kuphulika kwamkati ndi valavu ya mpira yokhala ndi chisindikizo chachitsulo, yokhala ndi mafunde a mafunde komanso njira yotsekera kupsinjika, yomwe imakhala ndi magwiridwe antchito odalirika otsekera pansi pa kuthamanga kwakukulu komanso kupsinjika kochepa. Imasunga zabwino za kapangidwe ka valavu ya mpira wa ubweya. Kuti kutsekeka kwa kuthamanga kwambiri, njira yotsekera yothandizidwa ndi kupsinjika imapangidwa, zomwe zimapangitsa kuti kuthamanga kwa madzi otsekedwa kupange mphamvu yotsekera pakati pa pakati pa valavu ndi mipando ya valve yapamwamba ndi yapansi, ndipo mphamvu yotsekera iyi imagwira ntchito yotsekereza yothandizidwa ndi kupsinjika.
Pofuna kukwaniritsa kutseka kotsika, adapanga njira yomangitsira mafunde asanayambe, yomwe imapereka mphamvu yofunikira pampando wapansi wa valavu kuti ikanikizire mpirawo. Chachitatu, pamene valavu yapakati yatsekedwa kuchokera pansi, mafunde apansi angapereke mphamvu yomangitsira yomwe sikhudzidwa ndi kusiyana kwa kuthamanga kwa ma valve pakati. Chisindikizo choyambirira chochokera kunja chimatengedwa, ndipo chimatha kutuluka mufakitale pambuyo pa mayeso anayi okanikiza. Kusinthaku kumatha kuchitika pogwiritsa ntchito crank kapena limit. Kukula kosiyanasiyana kumatha kusinthidwa.
Kupangidwa ndi crank kapena malire. Makulidwe osiyanasiyana akhoza kusinthidwa.
Nthawi yotumizira: Julayi-04-2022