I-API/API6d/API608 Cast/Stainless Steel Ss Float/Floating/Trunnion Uhlobo lweGesi/iOyile yoShishino/Amanzi Umbane/iPneumatic/iHydraulic 2/3 Pieces Full Bore/Port Ball Valve Umzi-mveliso waseTshayina
Yintoni ivalvu yebhola ye-Electric trunnion?
I-AnIvalvu yebhola yetrunnion yombanekuthetha ukuba ibhola ithintelwe ziibheringi kwaye ivunyelwe ukujikeleza kuphela, uninzi lomthwalo we-hydraulic luxhaswa ziingxaki zeNkqubo, nto leyo ebangela uxinzelelo oluphantsi lweebheringi kwaye kungabikho kudinwa kwe-shaft.
Uxinzelelo lombhobho luqhuba isihlalo esingaphezulu komsinga nxamnye nebhola engashukumiyo ukuze uxinzelelo lomgca lunyanzele isihlalo esingaphezulu komsinga ukuba siye ebholeni nto leyo ebangela ukuba sivale. Ukubambelela kwebhola ngoomatshini kutsala ukutyhalwa koxinzelelo lomgca, kuthintela ukungqubana okugqithisileyo phakathi kwebhola nezihlalo, ngoko ke nokuba kuxinzelelo olupheleleyo lokusebenza olunexabiso eliphantsi, i-torque yokusebenza ihlala iphantsi. Oku kuluncedo ngakumbi xa ivalvu yebhola iqhutywa kuba inciphisa ubungakanani be-actuator kwaye ke ngoko iindleko zizonke zephakheji ye-valve actuation. I-trunnion ifumaneka kuzo zonke iisayizi kunye nazo zonke iindidi zoxinzelelo kodwa ikakhulu zezobukhulu obukhulu kunye neemeko zoxinzelelo oluphezulu.
Iingenelo zoyilo lwebhola ye-trunnion kukuba i-torque yokusebenza iphantsi, kulula ukuyisebenzisa, ukunxitywa kwesihlalo okuncinci (Ukwahlulwa kwe-Stem/ball kuthintela ukulayisha ecaleni kunye nokunxitywa kwezihlalo ezisezantsi komlambo kuphucula ukusebenza kunye nobomi benkonzo), ukusebenza okuphezulu kokutywina kuxinzelelo oluphezulu noluphantsi (indlela eyahlukileyo yentwasahlobo kunye noxinzelelo lomgca ongaphezulu komlambo isetyenziswa njengesitywino nxamnye nebhola emileyo yokusetyenziswa koxinzelelo oluphantsi kunye noxinzelelo oluphezulu).
Iimpawu eziphambili ze-NORTECH Electric trunnion ball valve
1. Ukuvimba kabini kunye nokopha (DBB)
Xa ivalvu ivaliwe kwaye umngxuma ophakathi ukhutshiwe ngevalvu yokukhupha amanzi, izihlalo eziphezulu nezisezantsi ziya kuvala ngokuzimeleyo. Omnye umsebenzi wesixhobo sokukhupha amanzi kukuba isihlalo sevalvu sinokujongwa ukuba kukho ukuvuza ngexesha lovavanyo. Ukongeza, iidipozithi ngaphakathi emzimbeni zinokuhlanjwa ngesixhobo sokukhupha amanzi. Isixhobo sokukhupha amanzi senzelwe ukunciphisa umonakalo kwisihlalo ngenxa yokungcola okukwindawo yokusebenzela.
3. Isixhobo sokutywina esingxamisekileyo
Iivalvu zebhola ezinobubanzi obungaphezulu okanye obulingana ne-6' (DN150) zonke zenziwe ngesixhobo sokujova i-sealant kwisiqu nakwisihlalo. Xa iringi yesihlalo okanye iringi yesiqu O yonakele ngenxa yengozi, isitywini esifanelekileyo sinokufakwa kwisixhobo sokujova i-sealant ukuze kuthintelwe ukuvuza okuphakathi kwiringi yesihlalo nakwisiqu. Ukuba kuyimfuneko, inkqubo yokutywina encedisayo ingasetyenziselwa ukuhlamba nokuthambisa isihlalo ukuze kugcinwe ucoceko lwaso.
Isixhobo Sokufaka Inaliti Esitywinayo
4. Uyilo lweSakhiwo esingatshiyo
Xa kutsha ngexesha lokusetyenziswa kwevalvu, iringi yesihlalo, iringi yesiqu se-O kunye neringi ye-O ephakathi eyenziwe nge-PTFE, irabha yezinye izinto ezingezizo ezesinyithi iya kubola okanye yonakale phantsi kobushushu obuphezulu. Phantsi koxinzelelo lwe-medium, ivalvu yebhola iya kutyhala i-seat retainer ngokukhawuleza iye ebholeni ukuze yenze iringi yentsimbi iqhagamshelane nebhola kwaye yenze isakhiwo sokuncedisa isinyithi ukuya kwisinyithi, esinokulawula ngokufanelekileyo ukuvuza kwevalvu. Uyilo lwesakhiwo esingatshiyo sevalvu yepipeline ye-trunnion luhambelana neemfuno ezikwi-API 607, API 6FA, BS 6755 kunye neminye imigangatho.
6.Isakhiwo sokutywina isihlalo esithembekileyo
Ukutywinwa kwesihlalo kwenziwa ngokusebenzisa izigcini zesihlalo ezimbini ezidadayo, Zinokudada nge-axial ukuvimba ulwelo, kubandakanya ukutywinwa kwebhola kunye nokutywinwa komzimba. Ukutywinwa kwesihlalo sevalvu ngoxinzelelo oluphantsi kwenziwa ngokuqiniswa kwentwasahlobo. Ukongeza, isiphumo sepiston sesihlalo sevalvu senziwe ngokufanelekileyo, nto leyo eqinisekisa ukutywinwa koxinzelelo oluphezulu ngoxinzelelo lwendlela ngokwayo. Ezi ntlobo zimbini zilandelayo zokutywinwa kwebhola zinokufezekiswa.
Icala elisezantsi: Nje ukuba uxinzelelo "Pb" ngaphakathi kwevalvu Cavity lunyuke, amandla asetyenziswa kwi-A3 aphezulu kunalawo akwi-A4. Njengoko i-A3-A4=B2, umahluko woxinzelelo kwi-B2 uya koyisa amandla entwasahlobo ukuze isihlalo sikhululwe ebholeni kwaye siphumeze uxinzelelo lwe-valve cavity ukuya kwindawo esezantsi emva koko, isihlalo kunye nebhola ziya kuvalwa kwakhona phantsi kwentshukumo yentwasahlobo.
8. Ukutywina kabini (i-piston kabini)
Ivalvu yebhola yombhobho we-trunnion ingayilwa ngesakhiwo sokutywina kabini ngaphambi nasemva kwebhola kwiimeko ezithile zenkonzo ekhethekileyo kunye neemfuno zomsebenzisi. Inesiphumo sepiston kabini. Kwimeko eqhelekileyo, ivalvu ngokubanzi isebenzisa ukutywina okuphambili. Xa isihlalo esiphambili sitywina sonakele kwaye sibangela ukuvuza, isihlalo sesibini sinokudlala umsebenzi wokutywina kwaye siphucule ukuthembeka kokutywina. Isihlalo sisebenzisa isakhiwo esidibeneyo. Itywina eliphambili litywina lesinyithi ukuya kwisinyithi. Itywina lesibini yiringi yerabha ye-fluorine O enokuqinisekisa ukuba ivalvu yebhola inokufikelela kwinqanaba lokutywina le-bubble. Xa umahluko woxinzelelo uphantsi kakhulu, isihlalo sokutywina siya kucinezela ibhola ngentshukumo yasentwasahlobo ukuze kufezekiswe ukutywina okuphambili. Xa umahluko woxinzelelo uphakama, amandla okutywina esihlalo kunye nomzimba aya kwanda ngokufanelekileyo ukuze kutywinwe isihlalo kunye nebhola ngokuqinileyo kwaye kuqinisekiswe ukusebenza kakuhle kokutywina.
Ukuvalwa okuphambili: Phezulu.
Xa umahluko woxinzelelo uphantsi okanye kungekho umahluko woxinzelelo, isihlalo esidadayo siya kuhamba nge-axial ecaleni kwevalvu phantsi kwentshukumo yentwasahlobo size sityhale isihlalo siye ebholeni ukuze sigcine ukutywinwa okuqinileyo. Xa isihlalo sevalvu siphezulu kunamandla asetyenziswa kwindawo A1,A2-A1=B1. Ke ngoko, amandla aku-B1 aya kutyhala isihlalo siye eBholeni aze enze ukutywinwa okuqinileyo kwenxalenye ephezulu.
Ukutywinwa kwesibini: Phantsi komsinga.
Xa umahluko woxinzelelo uphantsi okanye kungekho umahluko woxinzelelo, isihlalo esidadayo siya kuhamba nge-axial ecaleni kwevalvu phantsi kwentshukumo yentwasahlobo size sityhale isihlalo siye ebholeni ukuze sihlale sitywinwe kakuhle. Xa uxinzelelo lwe-valve cavity P lusanda, amandla asetyenziswa kwindawo A4 yesihlalo sevalvu ephezulu kunamandla asetyenziswa kwindawo A3, A4- A3=B1. Ke ngoko, amandla akwi-B1 aya kutyhala isihlalo siye ebholeni aze enze ukutywinwa okuqinileyo kwenxalenye ephezulu.
10. Ulwakhiwo oluKhethekileyo loNcedo oluZenzekelayo lokuNciphisa uxinzelelo oluya kuMsinga oPhezulu
Njengoko ivalvu yebhola yenzelwe ukutywinwa okuphambili kunye nokwesibini okuphambili okunesiphumo sepiston ephindwe kabini, kwaye umngxuma ophakathi awukwazi ukukhulula uxinzelelo oluzenzekelayo, ivalvu yebhola kunye nesakhiwo esikhethekileyo iyacetyiswa ukuhlangabezana neemfuno zokunciphisa uxinzelelo oluzenzekelayo kwaye kuqinisekiswe ukuba akukho ngcoliseko kwindalo esingqongileyo. Kwisakhiwo, umjelo ophezulu usebenzisa ukutywinwa okuphambili kwaye umjelo osezantsi usebenzisa ukutywinwa okuphambili nokwesibini. Xa ivalvu yebhola ivaliwe, uxinzelelo kumngxuma wevalvu lunokwenza ukuncitshiswa koxinzelelo oluzenzekelayo kumjelo ongaphezulu, ukuze kuthintelwe ingozi ebangelwa luxinzelelo lomngxuma. Xa isihlalo esiphambili sonakele kwaye sivuza, isihlalo sesibini sinokudlala umsebenzi wokutywinwa. Kodwa ingqalelo ekhethekileyo kufuneka inikwe kwicala lokuhamba kwevalvu yebhola. Ngexesha lokufakelwa. Qaphela imiyalelo ephezulu nesezantsi. Jonga le mizobo ilandelayo yomgaqo wokutywinwa kwevalvu enesakhiwo esikhethekileyo.
Umzobo oyintloko wevalvu yebhola yokutywina phezulu nasezantsi
Umzobo osisiseko wokunciphisa uxinzelelo lwevalvu yebhola ukuya kumjelo ongasentla kunye nokutywinwa komjelo osezantsi
11. Isiqu soBungqina bokuqhushumba
Isiqu samkela isakhiwo esingavumeli ukutsha. Isiqu senziwe ngonyawo olusezantsi ukuze xa sibekwe isiciko sangaphezulu kunye nesikrufu, isiqu singavuthelwa yi-medium nokuba kukho ukunyuka okungaqhelekanga koxinzelelo kwivalvu.
Isiqu Esingqina Ukuqhushumba
13. Isiqu solwandiso
Ngokuphathelele ivalvu efakwe ngaphakathi, isiqu solwandiso sinokubonelelwa ukuba kufuneka kusetyenziswe umhlaba. Isiqu solwandiso senziwe ngesiqu, ivalvu yokutshiza i-sealant, kunye nevalvu yokukhupha amanzi enokwandiswa iye phezulu ukuze kube lula ukuyisebenzisa. Abasebenzisi kufuneka babonise iimfuno kunye nobude besiqu solwandiso xa bebeka ii-odolo. Kwivalvu yebhola eqhutywa nge-electric, pneumatic kunye ne-pneumatic - hydraulic actuators, ubude besiqu solwandiso kufuneka bube ukusuka embindini wepayipi ukuya kwi-flange ephezulu.
Umzobo wesicwangciso sesiqu solwandiso
Iinkcukacha zevalvu yebhola ye-trunnion yombane ye-NORTECH
Iinkcukacha zobugcisa zeTrunnion Ball Valve
• Iphedi yokuqhoboshela ye-ISO 5211 ehambelana neentlobo ezahlukeneyo zee-actuators;
• isakhiwo esilula, ukutywinwa okuthembekileyo kunye nokugcinwa okulula.
• uyilo oluchasene nokungashukumi kunye nolukhuselekileyo emlilweni.
• Isiqinisekiso se-ATEX sokukhusela ukuqhuma.
Umboniso weMveliso:
Ukusetyenziswa kwevalvu yebhola ye-trunnion yombane ye-NORTECH
Olu hloboIvalvu yebhola yetrunnion yombaneIsetyenziswa kakhulu kwinkqubo yokusebenzisa, ukucokisa kunye nokuthutha ioyile, igesi kunye nezimbiwa. Ingasetyenziselwa ukuvelisa iimveliso zeekhemikhali, amayeza; inkqubo yemveliso yombane wamanzi, amandla obushushu kunye namandla enyukliya; inkqubo yokukhupha amanzi,
