Kwicandelo leevalvu zemizi-mveliso, iivalvu zebhabhathane zisetyenziswa kakhulu kumashishini ahlukeneyo afana neoyile negesi, unyango lwamanzi, ukucubungula iikhemikhali, njl. Phakathi kweentlobo ezahlukeneyo zeevalvu zebhabhathane, kukho iintlobo ezimbini eziphambili: ivalvu yebhabhathane ephindwe kabini kunye nevalvu yebhabhathane ephindwe kathathu. Kolu thelekiso lupheleleyo, siza kujonga nzulu uyilo, izibonelelo, iingxaki kunye nokusetyenziswa kwezi valve zimbini.
Ivalvu yebhabhathane ephindwe kabini
Njengoko igama lisitsho, iivalvu zebhabhathane ezi-double offset zine-offset ezimbini: i-offset yokuqala yi-shaft eccentricity, oko kukuthi, i-offset ye-shaft axis ukusuka kumgca ophakathi wombhobho, kwaye i-offset yesibini yi-seal eccentricity, oko kukuthi, i-geometry ye-valve disc seal. Olu yilo luneengenelo ezibalulekileyo kunye neengxaki.
Iingenelo zevalvu yebhabhathane ephindwe kabini engaqhelekanga
1. Ukuguguleka okunciphileyo
Injongo yoyilo lwe-shaft eccentricity kukunciphisa ukungqubana phakathi kwepleyiti yevalvu kunye nesihlalo sevalvu ngexesha lenkqubo yokuvula nokuvala, ngaloo ndlela kunciphisa ukuguguleka kunye nokunciphisa umngcipheko wokuvuza. Ingakwandisa ubomi bevalvu yebhabhathane kwaye inciphise iindleko zokulungisa.
2. Utywino oluphuculweyo
Ukungabi nabuqhetseba kwesibini kwenza umphezulu wokutywina uqhagamshelane nesihlalo sevalvu kuphela kwinqanaba lokugqibela lokuvala, elingagcini nje ngokuqinisekisa ukutywinwa okuqinileyo, kodwa likwalawula ngempumelelo i-medium.
3. I-torque encitshisiweyo
Uyilo lwe-double offset lunciphisa i-friction coefficient, nto leyo enciphisa amandla afunekayo ukuvula nokuvala i-butterfly valve.
4. Ukutywina okubhekisa kwicala elinye
Iivalvu zebhabhathane ezijijekileyo ezimbini zinokubonelela ngokutywinwa kweendlela ezimbini, zivumela ukuhamba kweendlela ezimbini, kwaye kulula ngakumbi ukuzifaka nokusebenzisa.
Iingxaki zeevalvu zebhabhathane ezi-eccentric ezimbini:
1. Ixabiso eliphezulu
Uyilo oluphambili kunye nezixhobo zeevalvu zeebhabhathane ezingaqhelekanga ezimbini zihlala zibangela iindleko zokuvelisa eziphezulu xa kuthelekiswa neevalvu zeebhabhathane eziphakathi.
2. Uxinzelelo lwamanzi olungakumbi luyaphela
Ngenxa yepleyiti yevalvu ephindwe kabini ebanzi, isihlalo sevalvu esiphumayo, kunye neendlela ezimxinwa, uxinzelelo lwamanzi oluphuma kwivalvu yebhabhathane lunokwanda.
3. Uluhlu lobushushu olulinganiselweyo
Iivalvu zebhabhathane ezingaqhelekanga ezimbini zinokuthintelwa xa kusetyenzwa ubushushu obuphantsi kakhulu okanye ubushushu obuphezulu kuba izixhobo ezisetyenzisiweyo zisenokungakwazi ukumelana nobushushu obugqithisileyo.
Ivalvu yebhabhathane elingaphandle kathathu
Ivalvu yebhabhathane ephindwe kathathu imele uphuhliso olongezelelekileyo loyilo lwevalvu yebhabhathane ene-offset ezintathu. Ngokusekelwe kwi-eccentric ephindwe kabini, i-eccentrity yesithathu yi-offset ye-axis xa ithelekiswa nombindi womzimba wevalvu. Olu yilo lutsha luyinzuzo ekhethekileyo kunevalvu yebhabhathane yendabuko esembindini.
Iingenelo zeevalvu zebhabhathane ezi-eccentric ezintathu
1. Akukho kuvuza
Imilo eyahlukileyo yento yokutywina yevalvu yebhabhathane engaqhelekanga kathathu isusa ukungqubana kunye nokuguguleka, nto leyo ebangela ukutywinwa okuqinileyo kulo lonke ixesha levalvu.
2. Ubushushu obuphezulu kunye nokumelana noxinzelelo oluphezulu
Zombini ivalvu yebhabhathane e-all-metal triple eccentric kunye nevalvu yebhabhathane e-multi-layer triple eccentric ziyakwazi ukumelana nobushushu obuphezulu kunye noxinzelelo oluphezulu.
3. Uyilo olungatshiyo
Zonke izinto zevalvu yebhabhathane engaqhelekanga kathathu zinokuhlangabezana nemigangatho engqongqo yokumelana nomlilo, nto leyo eyenza ukuba ibalasele kwiindlela ezisetyenziswayo zokuthintela umlilo.
4. I-torque ephantsi kunye nokungqubana
Ivalvu yebhabhathane engaqhelekanga kathathu inokunciphisa ngakumbi i-torque yokusebenza kunye nokungqubana, ngaloo ndlela ifezekisa ukusebenza kakuhle, inciphise i-torque kwaye yandise ubomi benkonzo.
5. Uluhlu olubanzi lwezicelo
Ivalvu yebhabhathane engaqhelekanga kathathu ifanelekile kwiintlobo ngeentlobo zezicelo, kuquka ioyile negesi, iikhemikhali zepetroli, ukuveliswa kombane kunye namashishini okucoca.
Iingxaki zeevalvu zebhabhathane ezi-eccentric ezintathu
1. Ixabiso eliphezulu
Ivalvu yebhabhathane engaqhelekanga kathathu idla ngokuba neendleko eziphezulu zokuqala zokuvelisa ngenxa yoyilo lwayo oluphambili kunye nolwakhiwo lwayo.
2. Ukulahlekelwa yintloko okuphezulu kancinci
Ukulungiswa okongeziweyo kuyilo oluphindwe kathathu oluyi-eccentric kunokubangela ukulahleka kwentloko okuphezulu kancinci kunevalvu ephindwe kabini e-eccentric.
Ivalvu yebhabhathane ephindwe kabini engaqhelekanga VS ivalvu yebhabhathane engaqhelekanga kathathu
1. Isihlalo seValve
Isihlalo sevalvu sevalvu yebhabhathane engaqhelekanga kabini sihlala sifakwe kwi-groove kwipleyiti yevalvu kwaye senziwe ngerabha efana ne-EPDM, ukuze sikwazi ukuvala umoya, kodwa asifanelekanga ukusetyenziswa kubushushu obuphezulu kakhulu. Isihlalo sevalvu sevalvu yebhabhathane engaqhelekanga kathathu sisinyithi okanye sineeleya ezininzi, ngoko ke sifaneleke ngakumbi kubushushu obuphezulu okanye ulwelo olubolayo.
2. Ixabiso
Nokuba yindleko yoyilo okanye yinkqubo yokuvelisa enzima, iivalvu zebhabhathane ezi-eccentric ezintathu ziphezulu kuneevalvu zebhabhathane ezi-eccentric ezimbini. Nangona kunjalo, ukuphindaphinda kweevalvu zebhabhathane ezi-eccentric ezintathu emva kokulungiswa kwazo kuphantsi kuneevalvu zebhabhathane ezi-eccentric ezimbini.
3. I-Torque
Injongo yokuqala yoyilo lwevalvu yebhabhathane engaqhelekanga kathathu kukunciphisa ngakumbi ukuguguleka nokungqubana. Ke ngoko, i-torque yevalvu yebhabhathane engaqhelekanga kathathu incinci kuneyevalvu yebhabhathane engaqhelekanga ephindwe kabini.