Iingqwalasela zokhetho lohlobo lwevalvu Izinto eziqhelekileyo zokhetho lohlobo lwevalvu evela kumazwe angaphandle

Iingqwalasela zokhetho lohlobo lwevalvu Izinto eziqhelekileyo zokhetho lohlobo lwevalvu evela kumazwe angaphandle

I.Ivalve yokulawula umbane
Isixhobo somzimba weValve (okanye imathiriyeli yombhobho), uxinzelelo lwegama, uxinzelelo olusebenzayo (uxinzelelo lwangaphambili lwevalve kunye nokuvala umahluko woxinzelelo), omisela ukuba kusetyenziswe isihlalo esinye okanye ivalve yomkhono, idiameter yevalve (DN), eliphakathi kunye nobushushu, i actuator yombane ngaphandle kweemfuno. , amandla ombane angaqhushumba. Isignali yokulawula (ngokubanzi i-4-20mA), iimpawu zezithuthi azifunwa, umthengi akanalo iimfuno ezikhethekileyo. Ivalve yokulawula yombane istrowuke ethe ngqo kunye neAngle stroke (ivalve yebhola, ivalve yebhabhathane) ezimbini. Ziyahluka kwi-linear strokes zichaneke kakhulu, zikhawuleza, kwaye zinokuhlengahlengiswa ngeendidi ezahlukeneyo. Kodwa ukuchaneka kwe-Angle motion kumbi, isantya sentshukumo siyacotha njalo njalo. Okuthile kunokubhekisa kwiimfuno zabathengi.
Ivalve yebhola yombane kunye nevalve yebhabhathane
Izinto zomzimba, uxinzelelo olusebenzayo, imowudi yokudibanisa (i-valve yebhola engaphantsi kwe-DN 50 * uxhulumaniso oludibeneyo, olukhulu kune-DN 50 uxhulumaniso lwe-flange), i-valve ububanzi (DN), i-valve ye-butterfly i-diameter ingakwazi kuphela ** i-DN encinci 40. Ngelo xesha, ibhabhathane ivelufa ineendlela ezimbini zoqhagamshelo: uhlobo lwekliphu kunye nodidi lweflange. UHLOBO KUNYE nobushushu bendawo ephakathi (ubushushu bumisela ukusetyenziswa kwezinto zokutywina, uhlobo lwesixhobo esisetyenziswayo ukufumanisa ukuba ivalve ivalwe nge-alloy eqinileyo okanye ethambileyo), ivalve ivulekile okanye ivaliwe (uhlobo lokutshintsha lunokuvulwa kuphela kwaye ivaliwe kwindawo, uhlobo lohlengahlengiso lunokuvula i-valve kuyo nayiphi na indawo yokuvula, ukuhamba kunokulungiswa).
Ntathu. Ivalve yokulawula umoya
Izinto zomzimba (okanye imathiriyeli yombhobho), uxinzelelo lwegama, uxinzelelo lokusebenza (uxinzelelo lwangaphambili lwevalve kunye nokwahlukana koxinzelelo olusondeleyo, olumisela ukuba kusetyenziswe isihlalo esinye okanye ivalve yomkhono), idiameter yevalve (DN), uhlobo oluphakathi kunye nobushushu, nokuba bubungqina bokudubula. . Nokuba iimpawu zokuqukuqela ziyafuneka na, umoya ovulekileyo okanye igesi ivaliwe. Isignali yokulawula indawo (ngokuqhelekileyo i-4-20mA igalelo, ukuba isignali yengxelo yemveliso iyafuneka, ngoko ubale ixabiso, ixabiso lesi simeli libiza kakhulu kunexabiso le-input), zingaphi iikhilogram zoxinzelelo lonikezelo lomoya. Ivalve yebhola kunye ne-butterfly valve nayo inokulungelelaniswa emva kokufakwa kwe-positioner, engabizi kakhulu kune-stroke ethe ngqo kodwa ingachanekanga. Ifanele uhlengahlengiso lwe-***.
Ivalve yebhola yepneumatic kunye nevalve yebhabhathane
Izincedisi zomgangatho wevalve yokutshintsha kwepneumatic: ivalve ye-solenoid, iswitshi yomda, ukusetyenzwa komthombo womoya iindawo ezintathu.
Izincedisi zomgangatho wevalve yokulawula umoya: ivalve positioner gas source processing iinxalenye ezimbini
Izinto zevalve, uxinzelelo olusebenzayo lwevalve, ivalve ephakathi kunye nobushushu, ukuba luhlobo lokutshintsha, kufuneka ubuze amandla ombane wevalve ye-solenoid (ngokukodwa i-AC220V kunye ne-DC24V ngokuzithandela, ixabiso elifanayo), ivalve ye-pneumatic yebhola kunye ne-butterfly cylinder yahlulwe yaba Iindidi ezimbini (enye inye, ivalve ivula okanye ivale, ivalve ivalwe okanye ivuleke ngokuzenzekelayo; Enye intshukumo ephindiweyo, ivalve ingena umoya okanye ivaliwe, ivalve iphinda ingene okanye ivuleke.) , uhlobo lwe-welding, njl. Ngokufanayo, uhlobo lwe-mediumtemperature lumisela izinto eziphathekayo kunye nezinto zokutywinwa. (I-valve yeBHOLA NGOKUBANZI itywinwe NGE-TEFLON, ubushushu bokusetyenziswa bungaphantsi kwe-130 degrees, ingasetyenziselwa nayiphi na imeko ye-corrosion, i-130 DEGREES ngasentla ingasetyenziselwa i-TEfloN ephuculweyo, i-220 degrees ngasentla inokutywinwa kanzima, i-BUTERFLY valve CAST IRON MATERIAL NGOKUBANZI itywinwe ngerabha, intsimbi ephoswe ngentsimbi kunye nentsimbi engenasici ivamise ukutywinwa NGE-TEflON (PTFE) Iivalvu zebhabhathane eziqinileyo zidla ngokusetyenziswa njengezitywina eziqinileyo kunye nezigaba ezininzi ngcono kune-elastic seal.
Ntlanu. Ivalve yeSolenoid
I-valve ye-Solenoid kwiimfuno eziphakathi zingqongqo kakhulu, ngoko ke kuyimfuneko ukubuza i-medium, imodeli kunye nobushushu. Ukuba kukho ukungcola kunye neengqungquthela, izinto ezimisiweyo kunye ne-viscosity (isampuli yeglue), i-valve ye-solenoid ayikwazi ukusetyenziswa, unokukhetha enye i-valve. Ingakanani i-voltage ekhoyo (ixabiso le-AC220V okanye i-DC24V linokwahluka), rhoqo livuliwe okanye livaliwe (ngokuqhelekileyo kuxa ivalve ishiya umzi-mveliso, umbane ucinyiwe, uhlala ucimile uchasene). Yiyiphi ingcinezelo yokusebenza kwevalve (oku kubalulekile), imodi yokudibanisa (ngokuqhelekileyo kunye neeflange kunye nemicu).
Ngenisa ukhetho lwevalvu yezinto eziqhelekileyo
Kukho izinto ezininzi ekufuneka ziqwalaselwe ekukhetheni iivalvu ezithunyelwa kumazwe angaphandle, kodwa ngokwendlela ye-valve fluid, ulawulo lokuhamba kwevalve, kunye neempawu zendlela yokukhetha, kudla ngokuba yinto ebalulekileyo ekufuneka iqwalaselwe; Idityaniswe ne-German Lit-LIT brand valve, ukuhlalutya ukhetho lwezinto
Iivalvu zokusika kunye nokuvula imidiya
Umjelo wokuhamba i-valve echanekileyo, i-valve ye-butterfly esetyenziswa ngokuqhelekileyo, i-valve yokungeniswa kwesango, i-valve yokungenisa ibhola, njl. Kunye nevalve evalekileyo eya ezantsi (ivalve yeglowubhu yokungenisa, ivalve yeplunger) ngenxa yendlela yayo yokuqukuqela ebuhlungu, ukumelana nokuqukuqela kunezinye iivalve, ngoko ke khetha kancinci. Ekuvumeleni ukuchasana nokuhamba okuphezulu, okufana ne-transmission medium kwithuba legesi inokukhethwa phantsi kwevalve evaliweyo. Ekukhethweni kwevalve yebhabhathane evela kumazwe angaphandle, xa indawo yokuhambisa inokungcola okuninzi, njengamanzi akrwada okanye ukuhanjiswa kwelindle, ivalve yebhabhathane ethe tyaba kufuneka ikhethwe, kuba i-valve shaft ixwebile, ezantsi kwendlela yokuhamba akulula ukuqokelela inkunkuma. kunye nesikali, ukukhusela umsesane wokutywina wepleyiti yevalve; Okanye khetha i-brand ye-LITLIT yaseJamani efakwe ngaphandle kwe-valve yebhabhathane eqinile, inokuqinisekisa ukutywinwa kunye nokumelana nokunxiba, ubomi benkonzo. Iivalve zesango nazo kufuneka zikhethwe ngokusemandleni ngaphandle kwee-grooves ezantsi kwe-valve passage ukuphepha ukuvuza okubangelwa kukuqokelelana kwenkunkuma kwi-groove.
Okwesibini, lawula ukuhamba kwevalve
Ngokuqhelekileyo khetha lula ukulungelelanisa ukuhamba kwevalve njengendlela yokulawula, eyaziwa ngokuba ngumlawuli wokungenisa. Iivalvu ZOKUVALA eziya ezantsi (ezifana neevalvu zeglowubhu) ZIYIFANELE LE NJONGO KUBA Ubungakanani besitulo BULINGANISELELE NE-STROKE OF SHUTOFF. IIVVVVELI ezijikelezayo (i-rotary PLUG, ibhabhathane, iivalve zebhola) kunye neFLEXure BODY VALVES (PINCH, DIAPHRAGM) ZIKHONA NGENXA YOLAWULO LWE-THROTTLING, kodwa NGOKUQHELEKILEYO KUPHELA kuluhlu olulinganiselweyo lwe-valve DIAMEters. I-VALVE yesango YIsango elimilise idiskhi kwizibuko lesihlalo esisetyhula ukwenza intshukumo enqamlezileyo, ikufutshane kuphela kwindawo evaliweyo, inokulawula ngcono ukuhamba, ngoko ayiqhelekanga ukusetyenziswa kulawulo lokuhamba.
Isithathu, ivalve ye-shunt ebuyela umva
Ivalve inokuba nemijelo emithathu okanye ngaphezulu, kuxhomekeke kwimfuno yokubuyisela umva kunye nokujika. Iivalve zeplagi kunye nebhola zifaneleke ngakumbi kule njongo, kwaye ngoko ke, iivalve ezininzi ezisetyenziselwa ukubuyisela umva kunye nokuguqula zikhethwa njengenye yezi valve. Nangona kunjalo, KWEZINYE IZIXHOBO, ezinye IINTLOBO ZEVAVAVA ZINOKUSETYENZISWA NJENGEZIPHUMULI ZOTHUTHO, NGOKUBA AMAVAVAVU AMABINI okanye ANGAPHEZULU aqhagamshelwe ngokufanelekileyo enye kwenye. Ngokomzekelo, thatha i-valve yaseJamani i-Litt LIT njengomzekelo, i-valve ye-inlet ye-inlet yendlela emithathu yebhola, i-valve ye-plug yendlela-ntathu, i-valve ye-valve yebhola yendlela emithathu ihlulwe ibe yi-T kunye nohlobo lwe-L.
4. Iivalvu eziphakathi ezinamasuntswana amisiweyo
Xa kukho iinqununu ezimisiweyo phakathi, kukulungele ukusebenzisa iindawo zayo zokuvala kunye nokutywinwa kwendawo yokucima i-valve kunye nesenzo sokucima. Ukuba intshukumo yokuvala ukuya nokusuka kwisihlalo sithe nkqo, amasuntswana anokubanjiswa. Ngoko ke, Ivalve IFANELE KUPHELA UKUSETYENZISWA KUSIZI ENDLELA EZINGCACILEYO NGOKUBANZI NGAPHANDLE KOKUBA UKUBA UMphezulu WOKUCINA UKUBA ULUVUMELE UKUBANDISWA KWAMANQAKU. Iivalve zebhola kunye neeplagi zeplagi zisula indawo yokutywina ngexesha lokuvula nokuvala, ngoko ke zifanelekile ukusetyenziswa kwimidiya kunye neengqungquthela ezimisiwe. Ukukhethwa kwe-LITT LIT kuyacetyiswa, kusetyenziswa ivalve yesango yemela ephuma kumazwe angaphandle, ivalve yebhola ye-V.