Imishini Yezinsika Zomthombo Wemithombo

I-valve ye-Butterfly, eyaziwa nangokuthi i-flap valve, uhlobo lwe-valve elawulayo esetshenziswa kabanzi ezimbonini ezahlukene ukulawula ukugeleza koketshezi. Iqukethe izingxenye eziningana ezibalulekile, okuhlanganisa umzimba we-valve, isiqu se-valve, ipuleti le-butterfly, kanye nendandatho yokuvala. Lezi zingxenye zisebenza ndawonye ukuqinisekisa ukusebenza kahle nangokunembile kwe-valve.

Isetshenziswa kakhulu ezinhlelweni zokukhiqiza uwoyela wokuphakamisa okwenziwe ukuze kulawulwe ngempumelelo ingcindezi yangaphakathi ye-wellbor nokuvimbela ukuqhuma.
Isivikelo sokuqhuma kwenduku yokumunca esifakwe izinqama ezikhethekile singabamba intambo yepayipi, sivale isikhala esiphakathi kwentambo yepayipi kanye nenhloko yomthombo, futhi simelane nesisindo kanye nokujikeleza kwentambo yepayipi elingaphansi.

I-Flange isetshenziswa kakhulu ukuxhuma imishini ye-wellhead. Isihlahla sikaKhisimusi neminye imishini yokulawula i-wellhead. Izinhlobo eziningi ezihlanganisa i-flange ye-spool thread flange kanye ne-Blank Flange njll.

I-valve ye-choke iyingxenye eyinhloko yesihlahla sikaKhisimusi futhi yenzelwe ukulawula umkhiqizo womthombo wamafutha, izinto zomzimba kanye nezingxenye ze-valve ye-choke zihambisana ngokuphelele ne-API 6A kanye ne-NACE MR-0175 Standard Specifications, futhi isetshenziswa kabanzi ekubholeni uphethiloli ogwini kanye nolwandle. I-valve ye-throttle isetshenziswa kakhulu ukulungisa ukugeleza kanye nokucindezela kohlelo oluningi; Kunezinhlobo ezimbili zama-valve okulawula ukugeleza: aqinile futhi alungisekayo. Ama-valve e-throttle alungisekayo ahlukaniswe ngohlobo lwenaliti, uhlobo lwesikhafu sekheji langaphakathi, uhlobo lwesikhafu sekheji langaphandle kanye nohlobo lwepuleti le-orifice ngokwesakhiwo; Ngokwemodi yokusebenza, ingahlukaniswa ibe yi-manual kanye ne-hydraulic ezimbili. Ukuxhumeka kokuphela kwe-choke Valve kuyintambo noma i-Flange, exhunywe yi-non noma i-flange. I-choke valve iwela ku: i-choke valve enhle, i-needle choke valve, i-choke valve elungisekayo, i-cage choke valve kanye ne-orifice choke valve, njll.

Amavalvu esango lodaka ayisango eliqinile, isiqu esikhuphukayo, amavalvu esango anezivalo eziqinile, lawa mavalvu aklanywe ngokuhambisana nezindinganiso ze-API 6A. Asetshenziswa kakhulu odakeni, usimende, ukuqhekeka kanye nenkonzo yamanzi futhi kulula ukuwasebenzisa futhi kulula ukuwanakekela.

I-valve yokuxhuma iyingxenye ebalulekile ekusebenzeni kokufaka usimende nokuqhekeka emasimini kawoyela nezimayini kanye nokulawulwa koketshezi okunomfutho ophezulu okufanayo. Inesakhiwo esiqinile, ukulungiswa okulula, i-torque ephansi, ukuvulwa okusheshayo kanye nokusebenza okulula kangangokuthi iyi-valve efanelekile kakhulu phakathi kwama-manifold okufaka usimende nokuqhekeka njengamanje. (Amazwana: i-valve ingavulwa noma ivalwe kalula ngaphansi kwe-10000psi.)

I-Kill manifold iyithuluzi elidingekayo lokulawula ukugcwala kanye nokuqhuma, kanye nokusebenzisa ubuchwepheshe bokulawula ingcindezi yemithombo kawoyela negesi.
Ngesikhathi senqubo yokumba imithombo kawoyela negesi, uma uketshezi lokumba olusemgodini womthombo selungcoliswe uketshezi lokwakheka, ibhalansi phakathi kwengcindezi yekholomu yoketshezi olumile loketshezi lokumba kanye nengcindezi yokwakheka izophazamiseka, okuholela ekuchichimeni nasekuqhumeni.
Uma kudingeka ukujikeleza uketshezi lokumba olungcolile noma ukubhoboza ngepompo, imithombo yamanzi egelezayo ngokusebenza okulungisiwe ukuze kwakhiwe kabusha lobu budlelwano bokulinganisela, kodwa ukujikeleza okuvamile kungenakutholakala ngentambo yokubhoboza, uketshezi lokubhoboza olusebenza kahle lungaphonswa emthonjeni nge-kill manifold ukulawula ingcindezi yomthombo kawoyela negesi.

I-valve yokuhlola iklanywe futhi yakhiqizwa ngokuphelele ngokwezidingo ze-API 6A 《Izincazelo Zemishini ye-Wellhead kanye ne-Christmas Tree》, engasetshenziswa ngokushintshana nemishini ehambisanayo ekhaya nakwamanye amazwe ehambisana ne-API 6A Standard. I-core isebenzisa insimbi yokumelana ne-sulfide futhi ingasetshenziswa esimweni se-H2S, umzimba we-valve owenziwe ngensimbi ye-alloy esebenza kahle. Izinhlobo ezimbili zama-valve okuhlola zinikezwa yi-landrill: Uhlobo lwe-Swing kanye nohlobo lwe-Lift.

Izici
1. Umklamo ogcwele uqeda ngempumelelo ukwehla kwengcindezi kanye nemisinga ye-eddy futhi wehlisa ijubane lezinhlayiya eziqinile oketshezini
ukuhlanza ama-valve;
2. Umklamo wokuvala oyingqayizivele, ukuze i-torque yokushintsha incishiswe kakhulu;
3. Kwenziwa izivalo zensimbi phakathi kwebhonethi nomzimba wevalvu, ipuleti levalvu kanye nendandatho yesihlalo sevalvu;
4. I-spray yokunamathisela insimbi (imbondela) yokushisela i-carbide esimende, enokumelana okuhle nokuguguleka, ukumelana nokugqwala;
5. Indandatho yesihlalo iqiniswe yipuleti eliqinile ukuze kulondolozwe ukuzinza okuhle;
6. Isiqu sifakwe indlela yokuvala eguquliwe ukuze kube lula ukufaka esikhundleni indandatho yokuvala isiqu ngokucindezela.

I-Choke manifold iyithuluzi elidingekayo lokulawula ukukhahlela nokusebenzisa ubuchwepheshe bokulawula ingcindezi yemithombo kawoyela negesi. Lapho isivimbeli sokuqhuma sivaliwe, ingcindezi ethile yesikhala ilawulwa ngokuvula nokuvala ivalvu ye-throttle ukuze kugcinwe ingcindezi yembobo engezansi iphakeme kancane kunengcindezi yokwakheka, ukuze kuvinjelwe uketshezi lokwakheka ukuthi lungagelezi emthonjeni. Ngaphezu kwalokho, i-choke manifold ingasetshenziswa ukunciphisa ingcindezi ukuze kutholakale ukuvalwa okuthambile. Lapho ingcindezi emthonjeni ikhuphuka iye emkhawulweni othile, isetshenziselwa ukuqhuma ukuvikela ikhanda lomthombo. Lapho ingcindezi yomthombo ikhuphuka, uketshezi olusemthonjeni lungakhululwa ukulawula ingcindezi yesikhala ngokuvula nokuvala ivalvu ye-throttle (elungisekayo ngesandla, e-hydraulic futhi elungisiwe). Lapho ingcindezi yesikhala iphezulu kakhulu, ingaqhuma ngqo ngevalvu yesango.