Iyini isimiso sokusebenza kanye nokusetshenziswa kwe-kelly valve?

1. Inhloso ye-kelly valve

I-kelly valve iyi-valve yokulawula ngesandla ohlelweni lokujikeleza kwentambo yokubhoboza futhi ingenye yamathuluzi asebenzayo okuvimbela ukuqhuma. Ama-valve e-Kelly angahlukaniswa ngama-valve e-kelly angenhla nama-valve e-kelly aphansi. I-valve ye-kelly ephezulu isetshenziswa phakathi kwengxenye engezansi yempompi kanye ne-kelly; i-kelly valve engezansi isetshenziswa phakathi kwengxenye engezansi ye-kelly kanye ne-joint yokuvikela i-kelly. Uketshezi lokubhoboza lungageleza ngokukhululeka nge-kelly valve ngaphandle kokwehla kwengcindezi. Sebenzisa isikrufu esikhethekile ukuze ulujike ngo-90° ngokwemiyalelo yokuluvula nokuluvala.

2. Isakhiwo se-valve kaKelly kanye nomgomo wokusebenza

I-valve ye-kelly ephezulu nengezansi yakhiwe ngomzimba, isihlalo sebhola esingezansi, isiphethu, ukhiye wokusebenza, i-valve yebhola, indandatho yokugcina evulekile, isihlalo sebhola esiphezulu, umkhono wendandatho yokugcina, indandatho yokugcina enwebekayo kanye nesivalo, isikrufu sokwengeza, njll. Umgomo wokuvala ukuthi isiphethu sisekela isihlalo sebhola ukuze sibeke ibhola futhi senze libe nomthwalo othile wangaphambi kokulayisha. Ibhola kanye nesivalo sesihlalo sebhola kusondelene kakhulu. Lapho ibhola likhishwa, amehlo amanzi awavimbeki. Uma livaliwe, ubuso obuyindilinga buvala wonke amehlo amanzi. Ukucindezela kwe-annulus yangaphakathi kusebenza ebholeni, okwenza ibhola kanye nesihlalo sebhola kube sesimweni sokuvala esinomfutho ophezulu.

3. Indlela yokusebenzisa i-kelly valve

(1) Ngaphambi kokusebenzisa, sebenzisa isikrufu esikhethekile ukuze ujikelezise ukhiye wokusebenza ukuze ubone ukuthi ungaphenduka kalula, endaweni noma ungabi sesimweni esifanele;

(2) Ngemva kokuxhuma izingxenye eziphezulu nezingezansi ze-kelly, sebenzisa isikrufu futhi ukuze uhlole ukuguquguquka kwezihluthulelo zokusebenza ngaphambi kokwehla emthonjeni;

(3) Uma kwenzeka ukukhahlela noma ukuqhuma kwe-kelly emthonjeni, i-valve yepulaki ephezulu noma engezansi ye-kelly kufanele ivalwe endaweni eseduze;

(4) Ngesikhathi sokusebenza okuvamile, vala ivalvu yepulaki engezansi ngaphambi kokukhipha i-kelly ukuze uvimbele uketshezi lokubhoboza ukuthi lungachaphazeli phansi kokubhoboza;

(5) Phikelela ekuvuleni nasekuvaleni njalo ama-cock aphezulu nangaphansi e-kelly. Isibonelo, uma uxhuma ucezu olulodwa noma usebenzisa ama-cock aphezulu nangaphansi ahambayo e-kelly ngezikhathi ezijwayelekile, ukuze ugweme ukugqwala futhi ungakwazi ukuvula nokuvala ngokujwayelekile;

(6) Ngemva kokuxhuma ingxenye eyodwa, ivalvu yepulaki evaliwe kufanele ivulwe ngesikhathi ukuze kugwenywe ukubamba iphampu lapho iqalisa iphampu;

(7) Isikrufu sevalvu yepulagi kufanele sibekwe kude nenhloko yomthombo ukuze singawi emgodini noma silahleke;

(8) Uma ukhetha i-valve yepulaki, qiniseka ukuthi ingcindezi yayo yokusebenza ephezulu ihambisana nezinga lengcindezi leqembu lokuvimbela ukuqhuma kwe-wellhead.