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Yintoni ivalve yebhola ethe ngqo?
A ibhola Ivalve yebhola yokunyuka ngokuthe ngqokuthetha ukuba ibhola linyanzeliswa ngeebheringi kwaye ivunyelwe kuphela ukujikeleza, ubuninzi bomthwalo we-hydraulic buxhaswa yiMithintelo yeNkqubo, okubangelwa ukunyanzeliswa koxinzelelo oluphantsi kwaye akukho ukukhathala kwe-shaft.
Uxinizelelo lombhobho luqhubela isitulo esinyukayo ngokuchasene nebhola emileyo ukuze uxinzelelo lomgca lunyanzelise isitulo esinyukayo singene ebholeni ibangele ukuba ivaleke.I-anchoring yoomatshini yebhola ifunxa ukutyhala ukusuka kuxinzelelo lomgca, ukuthintela ukukhuhlana okugqithisileyo phakathi kwebhola kunye nezihlalo, ngoko ke naxa itorque yokusebenza iphantsi.Oku kunenzuzo ngakumbi xa ivalve yebhola ivuliwe kuba inciphisa ubungakanani be-actuator kwaye yiyo loo nto iindleko zizonke zephakheji yokuvula ivalve.I-trunnion ifumaneka kuzo zonke iisayizi kunye nazo zonke iiklasi zoxinzelelo kodwa ubukhulu becala zezobukhulu obukhulu kunye neemeko zoxinzelelo oluphezulu.
Iimpawu eziphambili ze-NORTECH Ivalve yebhola yokunyuka ngokuthe ngqo
1.Ibhlokhi ephindwe kabini kunye ne-Bleed (DBB)
Xa ivalve ivaliwe kwaye i-valve ephakathi ikhutshwe ngevalve yokukhupha, izihlalo eziphezulu kunye nezisezantsi ziya kubhloka ngokuzimeleyo.Omnye umsebenzi wesixhobo sokukhupha kukuba isihlalo sevalve sinokujongwa ukuba kukho ukuvuza ngexesha lovavanyo.Ukongezelela, iidiphozithi ngaphakathi komzimba zinokuhlanjwa ngesixhobo sokukhupha.isixhobo sokukhupha senzelwe ukunciphisa umonakalo kwisihlalo ngokungcola phakathi.
4.UYilo lweSakhiwo soMlilo
Kwimeko yomlilo ngexesha lokusetyenziswa kwevalve, isihlalo sokuhlala, i-stem O ring kunye ne-flange ephakathi ye-O ring eyenziwe nge-PTFE, irabha yezinye izinto ezingezona zentsimbi iya kuchithwa okanye yonakaliswe phantsi kobushushu obuphezulu.Ngaphantsi koxinzelelo lwe-medium, ibhola ivelufa iyakutyhala isigcini sesitulo ngokukhawuleza ukuya ebholeni ukwenza intsimbi yokutywina iqhagamshelane nebhola kwaye yenze intsimbi encedisayo kwisakhiwo sokutywina sesinyithi, esinokulawula ngokufanelekileyo ukuvuza kwevalvu. 607,API 6FA,BS 6755 kunye neminye imigangatho.
13.Isiqu Sokwandiswa
Ngokuphathelele ivalve efakelweyo, isiqu sokwandisa sinokubonelelwa ukuba umsebenzi womhlaba uyafuneka.Isikhondo sokwandiswa senziwe sisikhondo, ivalve yesitofu sealant, kunye nevalve yokukhupha amanzi enokwandiswa ukuya phezulu ukwenzela ukuba kube lula ukusebenza.Abasebenzisi kufuneka babonise iimfuno zokwandiswa kwesikhondo kunye nobude xa befaka iiodolo.Kwivalve yebhola eqhutywa ngombane, i-pneumatic kunye ne-pneumatic - i-hydraulic actuators, ubude besiqu sokwandisa kufuneka busuke kumbindi wombhobho ukuya kwiflange ephezulu.
6.Isakhiwo sokutywinwa kwesitulo esithembekileyo
Ukutywinwa kwesitulo kuphunyezwa ngezigcini-zitulo ezibini ezidadayo, ziyakwazi ukudada nge-axially ukuvala ulwelo, kubandakanywa ukutywinwa kwebhola kunye nokutywinwa komzimba. Ukutywinwa koxinzelelo oluphantsi lwesihlalo sevalvu kufezekiswa nge-spring pre tightened. Ukongeza, isiphumo sepiston yesitulo sevalve iyilwe ngokufanelekileyo, eqonda ukutywinwa koxinzelelo oluphezulu ngoxinzelelo lwesixhobo esiphakathi ngokwaso. Ezi ntlobo zimbini zilandelayo zokutywinwa kwebhola zinokufezekiswa.
7.Ukutywinwa okukodwa
(I-Automatic Pressure Relief kwi-Middle Cavity yeValve) Ngokubanzi, isakhiwo sokutywina esinye siyasetyenziswa. Oko kukuthi, kukho ukutywina okungaphezulu kuphela.Njengoko i-spring ezimeleyo elayishwe phezulu kunye nezihlalo zokutywina ezisezantsi zisetyenziselwa, uxinzelelo olungaphezulu ngaphakathi kwevalvu yevalvu lunokoyisa umphumo wokuqina kwangaphambili kwentwasahlobo, ukwenzela ukuba isitulo sikhululwe ebholeni kwaye siqonde ukukhululeka koxinzelelo oluzenzekelayo ukuya kwindawo esezantsi. .Icala elinyukayo: Xa isihlalo sihamba nge-axially ecaleni kwevalve, uxinzelelo "P" olubekwe kwindawo enyukayo (i-inlet) ivelisa amandla abuyela umva kwi-A1, Njengoko i-A2 iphezulu kune-A1, i-A2-A1=B1, amandla ku-A1. I-B1 iya kutyhala isihlalo kwibhola kwaye iqonde ukutywinwa okuqinileyo kwenxalenye engasentla
Icala elisezantsi: Emva kokuba uxinzelelo "Pb" ngaphakathi kwe-valve Cavity yanda, amandla afakwe kwi-A3 aphezulu kuno-A4.Njengoko i-A3-A4=B2, umahluko woxinzelelo kwi-B2 uya koyisa amandla entwasahlobo ukwenza isitulo sikhululwe ebholeni kwaye siqonde ukukhululeka koxinzelelo lwevalvu yendawo ukuya kwindawo esezantsi emva koko, isihlalo kunye nebhola ziya kutywinwa kwakhona phantsi kwentshukumo yasentwasahlobo. .
Ukutywinwa okwesibini: kumlambo osezantsi.
Xa umahluko woxinzelelo usezantsi okanye kungekho mahluko woxinzelelo, isitulo esidadayo siya kuhamba nge-axially ecaleni kwevalve phantsi kwentshukumo yasentwasahlobo kwaye sityhale isitulo sisiya ebholeni ukugcina ukutywinwa okuqinileyo.Xa umfutho wevalve emngxunyeni unyuka, amandla asetyenziswa kwindawo A4 yesitulo sevalve phezulu kunomandla owenziwe kwindawo A3, A4- A3=B1. Ngoko ke, amandla kwi-B1 aya kutyhala isitulo ngakwibhola kwaye aqonde. ukutywinwa okuqinileyo kwendawo ephezulu.
9.Isixhobo soNcedo loKhuseleko
Njengoko ivalve yebhola yenzelwe ukutywinwa okuphambili kunye nokutywinwa kwesibini okunempembelelo yepiston ephindwe kabini, kwaye umgodi ophakathi awunakukwazi ukuqonda ukukhululeka koxinzelelo oluzenzekelayo, ivalve yokhuseleko kufuneka ifakwe emzimbeni ukuze kuthintelwe ingozi yomonakalo ongaphaya koxinzelelo. ngaphakathi kwendawo yevalve enokuthi yenzeke ngenxa yokwandiswa kwe-thermal medium.Enye ingongoma ekufuneka iqwalaselwe kukuba i-valve yoncedo yokhuseleko ikhutshelwa ngqo emoyeni.Kwimeko yokukhutshwa ngokuthe ngqo kwi-atmospheric akuvumelekanga, sicebisa ukuba i-valve yebhola enesakhiwo esikhethekileyo sokunciphisa uxinzelelo oluzenzekelayo ngokubhekiselele kumlambo ophezulu kufuneka isetyenziswe.Jonga oku kulandelayo ngeenkcukacha.Nceda uyibonise ngokolandelelwano ukuba awufuni ivelufa yoncedo yokhuseleko okanye ukuba ungathanda ukusebenzisa ivalve yebhola enesakhiwo esikhethekileyo sokunciphisa uxinzelelo oluzenzekelayo ukuya kumsinga ongentla.
Umzobo womgaqo wevalvu yebhola ephuma phezulu nasezantsi
Umzobo womgaqo wokuthomalalisa uxinzelelo lwevalvu yevalve kumsinga ongasentla kunye nokutywinwa komsinga osezantsi
12.Ukunyangwa kwe-Corrosion kunye ne-Sulfide Stress Resistance
Isibonelelo esithile somhlwa sishiywe kubunzima bodonga lomzimba.
Isiqu se-carbon steel, i-shaft esisigxina, ibhola, isihlalo kunye neseyile yesihlalo zixhomekeke kwimichiza ye-nickel plating ngokwe-ASTM B733 kunye ne-B656. Ukongeza, izinto ezahlukeneyo zokuxhathisa i-corrosion ziyafumaneka kubasebenzisi ukuba bakhethe. Ngokweemfuno zabathengi, izixhobo zevalve zingakwazi ukhethwe ngokuhambelana ne-NACE MR 0175 / ISO 15156 okanye i-NACE MR 0103, kwaye ulawulo olungqongqo lomgangatho kunye nokuhlolwa komgangatho kufuneka kwenziwe ngexesha lokuvelisa ukuze kuhlangatyezwane ngokupheleleyo neemfuno kwimigangatho kunye nokuhlangabezana neemeko zenkonzo kwindawo yesulfurization.
Iinkcukacha ze-NORTECH Ivalve yebhola yokufakwa ngokuthe ngqo
IiNgcaciso zobuGcisa beValve yeTrunnion
| Idayamitha yegama | 2”-56”(DN50-DN1400) |
| Uhlobo loQhagamshelwano | RF/BW/RTJ |
| Umgangatho woyilo | I-API 6D/ASME B16.34/API608/MSS SP-72 ivalve yebhola |
| Izinto zomzimba | Intsimbi ekhandiweyo/Intsimbi ekhutshiweyo/Intsimbi engatyiwayo/Intsimbi ekhutshiweyo |
| Izinto zebhola | A105+ENP/F304/F316/F304L/F316L |
| Izinto zokuhlala | PTFE/PPL/NYLON/PEEK |
| Ubushushu bokusebenza | Ukuya kuthi ga kwi-120°C ye-PTFE |
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| Ukuya kuthi ga kwi-250 ° C ye-PPL/PEEK |
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| Ukuya kuma-80°C kwiNYLON |
| Ukuphela kweFlange | ASME B16.5 RF/RTJ |
| BW ekupheleni | I-ASME B 16.25 |
| Ubuso ngobuso | I-ASME B 16.10 |
| Ubushushu boxinzelelo | ASME B 16.34 |
| Ukhuseleko lomlilo&anti-static | API 607/API 6FA |
| Umgangatho wokuhlola | API598/EN12266/ISO5208 |
| Ubungqina bokuboniswa | ATEX |
| Uhlobo lomsebenzi | Ibhokisi yegiya yesandla/Isivusi somoya/Isivusi sombane |
uMboniso weMveliso:
Ukusetyenziswa kwevalve yebhola efakwa ngokuthe ngqo kwi-NORTECH
Olu hloboIValve yeBhola eNyuliweyoisetyenziswa kakhulu ekuxhaphazeni, ekusulungeni nasekuthuthweni kwe-oyile, irhasi kunye nezimbiwa.Ingasetyenziselwa ukuvelisa iimveliso zemichiza, amayeza;inkqubo yokuvelisa umbane ophehlwa ngamanzi, amandla obushushu kunye namandla enyukliya;inkqubo yokukhupha amanzi,
