Globe Control Valve

Cage Type single-Seat Globe Control Valve

Mtundu wa Cage wokhala ndi mpando umodzi wa Globe Control Valve umatenga mawonekedwe owongolera khola komanso pulagi yokhazikika. Ndioyenera kugwiritsa ntchito omwe ali ndi mphamvu yosiyana kwambiri. Kusindikiza koyenera kumalowa m'malo mwa mpando wapamwamba kuti musinthe mawonekedwe amtundu wa khola wokhala ndi mipando iwiri kukhala khola lampando umodzi. Kusintha uku kwawonjezera kwambiri kalasi yotsekera ya valavu ya khola. Pulagi imagwiritsa ntchito kukakamiza koyenera, mphamvu yotsegulira ndi yotseka ndiyotsika ndipo sing'anga pansi pazikhalidwe zokhala ndi kupanikizika kwakukulu kumatha kuwongoleredwa kudzera pamagetsi otsika kwambiri. chimagwiritsidwa ntchito kulamulira madzi pa mapaipi apakati ndi otsika kutentha ndi pakati ndi otsika kuthamanga amene amafuna zabwino zazikulu bata. Ndi zinthu monga kusindikiza kwabwino, kuthamanga kwakukulu kololeka, kuwongolera khola, malo akulu owongolera, kukhazikika kwabwino komanso mawonekedwe ophatikizika, galimotoyo imazindikira kusintha mwachangu ndikuwongolera pamzere ndikuwongolera bwino, kupulumutsa antchito ndi nthawi. Kapangidwe ka pulagi yolinganiza imawonetsetsa kuti chowongolera chothandizira ndichotsika kwambiri.

Cage Type Double-seat Globe Control Valve

HCB Pneumatic Cage Type Double-seat Globe Control valve imatenga kachipangizo koyendetsedwa ndi khola ndi pulagi yoyenera. Mosiyana ndi Cage Type single-seat Type, valavu yamtunduwu imatenga mawonekedwe amtundu wa khola ndipo imagwiritsidwa ntchito makamaka pamapulogalamu omwe alibe zofunika kwambiri kuti atseke. Pamene imatengera mawonekedwe a mipando iwiri, ndi nkhope ziwiri zosindikizira ndi zisindikizo zachitsulo, kutentha kwapakati kumakhala kokulirapo. Pulagi imagwiritsa ntchito kupanikizika koyenera kuti mphamvu yotsegulira ndi yotseka ndiyotsika ndipo ma TV omwe ali ndi ntchito yosiyana kwambiri amatha kuwongoleredwa kudzera pamagetsi otsika kwambiri. Ma lts omwe amagwiritsidwa ntchito kwambiri pakuwongolera madzimadzi pamapaipi apakati ndi otsika kutentha komanso omwe amafunikira kukhazikika kosunthika, Ndi zinthu monga kusindikiza kwabwino, kuthamanga kovomerezeka kosiyana, kuwongolera khola, malo akulu owongolera, kukhazikika kwabwino komanso mawonekedwe ophatikizika, amatha kuzindikira kusinthika mwachangu kwa ma trims pamzere ndikuwongolera bwino, kupulumutsa antchito ndi nthawi. Kapangidwe ka pulagi yolinganiza imawonetsetsa kuti chowongolera chothandizira ndichotsika kwambiri.

Multi-hole Low Noise Control Valve

Pneumatic Multi hole Low Noise Control Valve imagwiritsa ntchito mawonekedwe owongolera manja ndi pulagi yokhazikika.ndi valavu yowongolera magwiridwe antchito apamwamba yokhala ndi kukhazikika kosunthika komwe kuli koyenera kugwirira ntchito movutikira. Popeza kusiyanasiyana kuli kokulirapo komanso kuthamanga kwa sing'anga ndikwambiri, zowongolera zidzakokoloka kwambiri ndikuwonongeka ndipo phokoso lalikulu lidzapangidwa. Chifukwa chake, timasintha mtundu wamtundu wazenera wokhazikika kukhala malaya a multichoke. pazamadzimadzi komwe kumayenda kumakhala kolowera mkati komanso kutsika, ndipo kugunda kwamadzimadzi kumapangitsa kuti sing'angayo izigundana mkati mwa manja, kuti idye mphamvu yamkati ndikuchepetsa kuthamanga. Kwa gasi ndi zoulutsira mawu, mayendedwe oyenda nthawi zambiri amakhala otsika komanso otsika kwambiri, kotero kuti ga sing'angayo imakwaniritsa kukula kwa voliyumu kumbuyo kwa mpando pambuyo pogwedezeka ndi manja ambiri ndipo kupanikizika kwa sing'anga kumachepetsedwa kuti muchepetse kuthamanga. Zigawo za valavu yamtunduwu zimatha kusinthana ndi za Cage Type single seat Control Valve kupatula kuti mkonowo umasinthidwa kukhala mtundu wa Mult-hole.
Multi-Stage Pressure drop control valve

Multi-stage Pressure drop control valve imatenga mawonekedwe owongolera manja ndi pulagi yokhazikika. amagwiritsidwa ntchito makamaka muzochitika zautumiki ndi kuthamanga kwakukulu kosiyana ndi ntchito zomwe zimapanga kung'anima evaporation ndi cavitation. Malinga ndi magawo osiyanasiyana, idapangidwa ndi mazenera osiyanasiyana otsitsa omwe amapanga Multi-stage pressure drop trim. Ma khola opangidwa molingana ndi mikhalidwe yosiyanasiyana yautumiki amatsimikizira kuti kupezeka kwa evaporation ndi cavitation mumtengo kumathetsedwa. Throttling ikuchitika kuyambira nthawi imene sing'anga kukhudzana woyamba khola, ndi mkulu kusiyana kuthamanga pa polowera pang'onopang'ono kuchepetsedwa pambuyo kangapo throttling. Chifukwa chake zimatsimikizirika kuti kupanikizika kumakhala pamwamba pa mphamvu ya nthunzi yochuluka pamene sing'anga ikuyenda mu valavu, ndipo kutuluka kwa evaporation ndi cavitation kumachotsedwa, kotero kuti moyo wautumiki wa kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka ntchito.

Cavitation chifukwa ndi yankho

Chifukwa cha Caviation
Pamene kuthamanga kwamadzimadzi kumachepetsedwa ku mphamvu ya saturated nvapor kapena kutsika, kutuluka kwa evaporation kapena thovu kudzachitika.mu ma valve ambiri olamulira chithunzi 5), mphamvu yolowera ndi p1, velocity ndi V1. Madziwo akamadutsa m'dera la plug necking, kuthamanga kumawonjezeka ku Vvc Malinga ndi mfundo yosungira mphamvu, kuthamanga kwamadzimadzi kumagwera mwadzidzidzi ku Pvc. Pamene Pvc ndi yofanana kapena yocheperapo kuposa mphamvu yamadzi yodzaza nthunzi ya Pv, madziwo amapangidwa ndi gasified ndi ma thovu amapangidwa, kotero kuti kung'anima kwa nthunzi kumachitika. Madziwo akadutsa papulagi, kupanikizika kumayamba kubwezeretsedwa ndipo mphamvu ya kinetic imasamutsidwa ku mphamvu zomwe zingatheke kachiwiri Pamene kupanikizika kumabwezeretsedwa kumtunda wapansi, womwe umawonetsedwa ngati p2 ndipo liwiro ndi V2. Pamene kuthamanga kobwezeretsedwako kumaposa mphamvu ya nthunzi yochuluka ya Pv, thovu lopangidwa lidzasweka ndipo cavitation idzachitika. Kutulutsa mphamvu kwamtunduwu kumawonjezera kupsinjika pang'ono kukhala pamwamba pa 200000psl (1400MPa) ndipo kupsinjika kumawononga pulagi yolimba mwachangu.

Njira yothetsera Cavitation

Valavu yowongolera labyrinth imatha kuthetsa kuwonongeka komwe kumachitika chifukwa cholephera kuwongolera kuthamanga kwamadzi. Choyamba, madziwa amamwazikana m’tinjira tating’ono ting’ono. Choncho, ngakhale ming'oma ikapangidwa, mphamvu yawo imakhala yochepa kwambiri ndipo mphamvu sikwanira kutulutsa nkhawa zomwe zingawononge zipangizo, kachiwiri, kuthamanga kwathamanga kumasungidwa pamtunda wotsika kwambiri. Choncho, kupanikizika pang'ono sikudzachepetsedwa kukhala otsika kusiyana ndi kuthamanga kwamadzimadzi vaporizing. Chifukwa chake, cavitation sizichitika. Kuwonongeka komwe kumachitika chifukwa cha cavitation ndi chizindikiro chomwe chikuwonetsa kulephera kuwongolera kuthamanga kwa kuthamanga. Monga tafotokozera pamwambapa, kukhazikitsidwa kwa zipangizo zolimba kwambiri, manja otsekemera kapena orifice otsika amangochotsa zolakwika zochepa mu valve chifukwa cha cavitation. Kuthamanga kwakukulu kumapangitsa cavitation ndikuwononga pulagi, ndipo njira yothetsera cavitation ndiyo kutenga khola la labyrinth monga momwe tawonetsera pa chithunzi.

• Ma KV achibale a valve yolamulira padziko lonse lapansi ndi Maulendo (EQ% / Linear)