I-API/API6d/API608 Insimbi Engagqwali Uhlobo Lwe-Ss Float/Floating/Trunnion Igesi Yezimboni/Amafutha/Amanzi Ugesi/Umoya/I-Hydraulic 2/3 Izingcezu Ezigcwele I-Bore/Port Ball Valve Ifektri yaseShayina
Iyini i-Electric trunnion ball valve?
I-AnI-valve yebhola kagesi ye-trunnionkusho ukuthi ibhola livinjelwe ama-bearings futhi livunyelwe ukujikeleza kuphela, iningi lomthwalo we-hydraulic lisekelwa yizithiyo zeSistimu, okuholela ekucindezelweni okuphansi kwama-bearings kanye nokukhathala kwe-shaft.
Umfutho wepayipi ushayela isihlalo esingaphezulu ebholeni elingaguquki ukuze umfutho womugqa uphoqe isihlalo esingaphezulu ebholeni okubangela ukuthi livaleke. Ukubambelela kwebhola ngomshini kumunca ukusunduzwa okuvela kumfutho womugqa, kuvimbele ukungqubuzana okweqile phakathi kwebhola nezihlalo, ngakho-ke ngisho noma ingcindezi yokusebenza isezingeni eliphelele ihlala iphansi. Lokhu kunenzuzo ikakhulukazi lapho ivalvu yebhola iqhutshwa ngoba yehlisa usayizi we-actuator ngakho-ke izindleko eziphelele zephakheji ye-actuation yevalvu. I-trunnion iyatholakala kubo bonke osayizi kanye nazo zonke izinhlobo zomfutho kodwa ikakhulukazi ingezabosayizi abakhulu kanye nezimo zomfutho ophezulu.
Izinzuzo zomklamo webhola le-trunnion yi-torque ephansi yokusebenza, ukulula kokusebenza, ukuguguleka kwesihlalo okuncishisiwe (Ukuhlukaniswa kwe-Stem/ball kuvimbela ukulayisha eceleni kanye nokuguguleka kwezihlalo ezingezansi komfula okuthuthukisa ukusebenza kanye nokuphila kwenkonzo), ukusebenza kahle kokuvala kokubili ekucindezelweni okuphezulu kanye nokuphansi (indlela ehlukile yesiphethu kanye nokucindezela komugqa ongaphezulu komfula kusetshenziswa njengokuvala ngokumelene nebhola elingaguquki lokusetshenziswa kokucindezela okuphansi kanye nokucindezela okuphezulu).
Izici eziyinhloko ze-NORTECH Electric trunnion ball valve
1. Ukuvimba Okubili Nokopha (DBB)
Uma ivalvu ivaliwe futhi umgodi ophakathi uthululwa ngevalvu yokukhipha amanzi, izihlalo ezingenhla nezingezansi zizovimba ngokuzimela. Omunye umsebenzi wedivayisi yokukhipha amanzi ukuthi isihlalo sevalvu singahlolwa uma kukhona ukuvuza ngesikhathi sokuhlolwa. Ngaphezu kwalokho, amadiphozithi emzimbeni angagezwa ngedivayisi yokukhipha amanzi. Idivayisi yokukhipha amanzi yakhelwe ukunciphisa umonakalo esihlalweni ngenxa yokungcola okungaphakathi.
3. Idivayisi Yokuvala Eziphuthumayo
Ama-valve ebhola anobubanzi obungaphezu noma obulingana no-6' (DN150) wonke aklanywe ngedivayisi yokufaka i-sealant esiqwini nasesihlalweni. Uma indandatho yesihlalo noma indandatho ye-stem O yonakele ngenxa yengozi, i-sealant ehambisanayo ingafakwa yidivayisi yokufaka i-sealant ukuze kugwenywe ukuvuza okuphakathi esiqwini nasesiqwini. Uma kudingeka, uhlelo lokufaka i-assistant lungasetshenziswa ukugeza nokugcoba isihlalo ukuze kugcinwe ukuhlanzeka kwaso.
Idivayisi Yokufaka Isivalo
4. Umklamo Wesakhiwo Ongashi
Uma kwenzeka umlilo ngesikhathi kusetshenziswa ivalvu, indandatho yesihlalo, indandatho yesiqu se-O kanye nendandatho ye-flange ephakathi ye-O eyenziwe nge-PTFE, irabha yezinye izinto ezingezona ezensimbi izobola noma yonakale ngaphansi kokushisa okuphezulu. Ngaphansi kwengcindezi ye-medium, ivalvu yebhola izosunduza i-seat retainer ngokushesha iye ebholeni ukuze yenze indandatho yensimbi ixhumane nebhola futhi yakhe isakhiwo sokuvala insimbi esisekelayo kuya kwensimbi, esingalawula ngempumelelo ukuvuza kwevalvu. Umklamo wesakhiwo esingashisi umlilo se-trunnion pipeline ball valve uhambisana nezidingo eziku-API 607, API 6FA, BS 6755 kanye nezinye izindinganiso.
6. Isakhiwo sokuvala isihlalo esithembekile
Ukuvalwa kwesihlalo kutholakala ngokusebenzisa izibambi zezihlalo ezimbili ezintantayo, Zingantanta nge-axial ukuvimba uketshezi, okuhlanganisa ukuvalwa kwebhola kanye nokuvalwa komzimba. Ukuvalwa kwesihlalo se-valve ngengcindezi ephansi kutholakala ngokuqiniswa kwentwasahlobo. Ngaphezu kwalokho, umphumela we-piston wesihlalo se-valve uklanywe kahle, okwenza ukuvalwa kwengcindezi ephezulu kutholakale ngengcindezi ye-medium uqobo. Izinhlobo ezimbili ezilandelayo zokuvalwa kwebhola zingabonakala.
Uhlangothi olungezansi: Uma ingcindezi ethi “Pb” ngaphakathi kwe-valve Cavity ikhula, amandla asetshenziswa ku-A3 aphakeme kunalawo aku-A4. Njengoba i-A3-A4=B2, umehluko wengcindezi ku-B2 uzonqoba amandla entwasahlobo ukuze isihlalo sikhululwe ebholeni futhi kutholakale ukukhululeka kwengcindezi ye-valve engxenyeni engezansi ngemuva kwalokho, isihlalo nebhola kuzovalwa futhi ngaphansi kwesenzo sentwasahlobo.
8. Ukuvala Okubili (I-piston Ephindwe Kabili)
I-valve yebhola yepayipi le-trunnion ingaklanywa ngesakhiwo se-Double Sealing ngaphambi nangemva kwebhola ukuze kufezwe izimo ezikhethekile zesevisi kanye nezidingo zomsebenzisi. Ine-double piston effect. Ngaphansi kwesimo esijwayelekile, i-valve ngokuvamile isebenzisa i-primary sealing. Lapho isihlalo esiyinhloko sivala sonakele futhi sibangela ukuvuza, isihlalo sesibili singadlala umsebenzi wokuvala futhi sithuthukise ukuthembeka kokuvala. Isihlalo sisebenzisa isakhiwo esihlanganisiwe. I-primary seal iyi-metal to metal seal. I-secondary seal iyi-fluorine rubber O ring engaqinisekisa ukuthi i-ball valve ingafinyelela ezingeni le-bubble sealing. Uma i-pressure differential iphansi kakhulu, isihlalo sokuvala sizocindezela ibhola ngesenzo sasentwasahlobo ukuze kufezwe i-primary sealing. Lapho i-pressure differential iphakama, amandla okuvala esihlalo nomzimba azokhula ngokufanele ukuze kuboshwe isihlalo nebhola ngokuqinile futhi kuqinisekiswe ukusebenza kahle kokuvala.
Ukuvalwa okuyinhloko: Phezulu komfula.
Uma umehluko wokucindezela uphansi noma kungekho umehluko wokucindezela, isihlalo esintantayo sizohamba nge-axial eceleni kwevalvu ngaphansi kwesenzo sentwasahlobo bese sicindezela isihlalo siye ebholeni ukuze sigcine ukuvala okuqinile. Uma isihlalo sevalvu siphakeme kunamandla asetshenziswa endaweni A1,A2-A1=B1. Ngakho-ke, amandla aku-B1 azosunduza isihlalo siye eBholeni futhi aqinisekise ukuvalwa okuqinile kwengxenye ephezulu.
Ukuvalwa kwesibili: Ngaphansi komfula.
Uma umehluko wokucindezela uphansi noma kungekho umehluko wokucindezela, isihlalo esintantayo sizohamba nge-axial eceleni kwevalvu ngaphansi kwesenzo sentwasahlobo bese sisunduza isihlalo siye ebholeni ukuze sigcine ukuvala okuqinile. Lapho ukucindezela kwesikhala sevalvu u-P kukhuphuka, amandla asebenza endaweni engu-A4 yesihlalo sevalvu ephakeme kunamandla asebenza endaweni engu-A3,A4-A3=B1. Ngakho-ke, amandla aku-B1 azosunduza isihlalo siye ebholeni futhi aqinisekise ukuvalwa okuqinile kwengxenye ephezulu.
10. Isakhiwo Esikhethekile Sokukhululeka Kokucindezela Okuzenzakalelayo Kubheke Ekusakazeni Okuphezulu
Njengoba ivalvu yebhola yakhelwe ngokuvalwa okuphambili nokwesibili okuthuthukisiwe okunomphumela wepiston ephindwe kabili, futhi umgodi ophakathi awukwazi ukukhulula ingcindezi ngokuzenzakalelayo, ivalvu yebhola nesakhiwo esikhethekile kuyanconywa ukuhlangabezana nezidingo zokukhululeka kwengcindezi ngokuzenzakalelayo nokuqinisekisa ukuthi akukho ukungcoliswa kwemvelo. Esakhiweni, umfudlana ongaphezulu usebenzisa ukuvalwa okuyinhloko kanti umfudlana ongezansi usebenzisa ukuvalwa okuyinhloko nokwesibili. Lapho ivalvu yebhola ivaliwe, ingcindezi engaphakathi kwevalvu ingakhulula ingcindezi ngokuzenzakalelayo emfudlaneni ongaphezulu, ukuze kugwenywe ingozi ebangelwa ingcindezi yomgodi. Lapho isihlalo esiyinhloko sonakele futhi sivuza, isihlalo sesibili singadlala nomsebenzi wokuvala. Kodwa kufanele kunakwe ngokukhethekile indlela yokugeleza kwevalvu yebhola. Ngesikhathi sokufakwa. Qaphela iziqondiso ezingenhla nezingezansi. Bheka imidwebo elandelayo yesimiso sokuvala sevalvu nesakhiwo esikhethekile.
Umdwebo oyinhloko we-ball valve yokuvala phezulu naphansi komfula
Umdwebo oyisisekelo wokukhululeka kwengcindezi ye-ball valve cavity ukuya ekufakweni komfudlana ongaphezulu kanye nokuvalwa komfudlana ophansi
11. Isiqu Sobufakazi Bokuqhuma
Isiqu samukela isakhiwo esingavumeli ukuqhunyiswa. Isiqu sakhiwe ngesinyathelo sonyawo phansi ukuze ngokubeka isembozo sangaphezulu kanye nesikulufu, isiqu singaphumi yi-medium ngisho noma kwenzeka ukwenyuka kwengcindezi okungavamile emgodini we-valve.
Isiqu Esivikela Ukuqhuma
13. Isiqu Sokwelulwa
Ngokuphathelene nevalvu ehlanganisiwe, isiqu sokwelula singanikezwa uma kudingeka ukusebenza komhlabathi. Isiqu sokwelula sakhiwe ngesiqu, ivalvu yokujova ye-sealant, kanye nevalvu yokukhipha amanzi enganwetshwa iye phezulu ukuze kube lula ukusebenza. Abasebenzisi kufanele babonise izidingo zesiqu sokwelula kanye nobude lapho bebeka ama-oda. Kuvalvu yebhola eqhutshwa nge-actuators kagesi, yomoya kanye neyomoya - ye-hydraulic, ubude besiqu sokwelula kufanele busuke enkabeni yepayipi kuya ku-flange ephezulu.
Umdwebo wesimiso wesiqu sokwelulwa
Imininingwane ye-valve yebhola ye-trunnion kagesi ye-NORTECH
Imininingwane Yobuchwepheshe be-Trunnion Ball Valve
• Iphedi yokufaka ye-ISO 5211 ehambisana nezinhlobo ezahlukene zama-actuator;
• isakhiwo esilula, ukuvalwa okuthembekile kanye nokugcinwa okulula.
• umklamo ovikela ukuqina kanye nokuphepha emlilweni.
• Isitifiketi se-ATEX sokuvikela ukuqhuma.
Umbukiso Womkhiqizo:
Ukusetshenziswa kwe-valve yebhola ye-trunnion kagesi ye-NORTECH
Lolu hlobo lweI-valve yebhola kagesi ye-trunnionisetshenziswa kabanzi ohlelweni lokusebenzisa, ukucwenga kanye nokuthutha uwoyela, igesi kanye namaminerali. Ingasetshenziswa futhi ukukhiqiza imikhiqizo yamakhemikhali, imithi; uhlelo lokukhiqiza ugesi wamanzi, amandla okushisa kanye namandla enuzi; uhlelo lokukhipha amanzi,
