Angle Type regulating valve pakupanga ndi momwe mungagwiritsire ntchito? Labyrinth control valve yathetsa bwino mavuto a cavitation, phokoso ndi kugwedezeka kwa mavavu wamba

Angle Type regulating valve pakupanga ndi momwe mungagwiritsire ntchito? Labyrinth control valve idathetsa bwino mavuto a cavitation, phokoso ndi kugwedezeka kwa mavavu wamba Mu dongosolo lodziwikiratu la kupanga, valavu yowongolera ndi ulalo wofunikira komanso wofunikira, womwe umadziwika kuti manja ndi mapazi a automation process, ndi imodzi. za magawo owongolera ma terminal a automatic control system. Angular control valve flow njira ndi yosavuta, kukana yaying'ono, yoyenera kugwiritsidwa ntchito patsogolo (kukhazikitsa). Komabe, pakakhala kutsika kwamphamvu kwambiri, tikulimbikitsidwa kuti tisinthe kugwiritsa ntchito Angle regulator, kuti apititse patsogolo mphamvu yosakwanira komanso kuchepetsa kuwonongeka kwa spool, komanso kumathandizira kuyenda kwa sing'anga, kupewa kuphika ndi kutsekereza kwa regulator. Vavu yoyang'anira m'ng'ono pogwiritsira ntchito m'mbuyo, makamaka iyenera kupewa nthawi yayitali yotsegula pang'ono, kuti muteteze kugwedezeka kwakukulu ndikuwononga spool. Makamaka mu gawo loyesa kupanga la chomera chamankhwala, chifukwa cha kuchepa kwapang'onopang'ono pakuyesa, mapangidwe apangidwe sangakwaniritse zofunikira, kugwiritsa ntchito valavu yoyang'anira Angle kuyenera kukhala momwe kungathekere kuti tipewe nthawi yayitali. wa kutsegula pang'ono, pofuna kupewa kuwonongeka kwa Angle regulating valve. Mu dongosolo lodzilamulira lokha popanga kupanga, valavu yowongolera ndi ulalo wofunikira komanso wofunikira, womwe umadziwika kuti manja ndi mapazi a automation process process, ndi chimodzi mwazinthu zowongolera zowongolera zowongolera zokha. Zimapangidwa ndi zigawo ziwiri: actuator ndi valve. Kuchokera pamalingaliro a ma hydraulics, valavu yowongolera ndi kukana kwanuko kumatha kusintha chinthu chowongolera, valavu yowongolera imagwirizana ndi chizindikiro cholowera posintha sitiroko kuti isinthe kukana kokwanira, kuti akwaniritse cholinga chowongolera kuyenda. . Mapangidwe a valavu yoyendetsera ma angular ndi kugwiritsa ntchito mawonekedwe a 1 Angle regulating valve kuwonjezera pa thupi la valve kwa Angle, zina ndizofanana ndi valavu ya mpando umodzi, makhalidwe ake amatsimikizira njira yake yosavuta, kukana pang'ono, makamaka yabwino kutsika kuthamanga kwambiri, kukhuthala kwakukulu, komwe kuli zolimba zoyimitsidwa komanso kuwongolera kwamadzimadzi. Itha kupewa coking, kugwirizana ndi clogging chodabwitsa, komanso zosavuta kuyeretsa ndi kudziyeretsa. 2 valavu yoyang'anira mtundu wa Angle yowoneka bwino komanso yosinthira nthawi zambiri, valavu yoyang'anira mtundu wa Angle imayikidwa kutsogolo, ndiko kuti, kumunsi ku mbali kunja. Pokhapokha pakakhala kusiyana kwakukulu ndi kukhuthala kwakukulu, kuphika kosavuta, sing'anga munali inaimitsidwa tinthu nkhani, n'zosiyana unsembe tikulimbikitsidwa, ndiye zinthu mbali mu pansi kunja. Cholinga cha n'zosiyana ntchito ang'ono malamulo valavu ndi kusintha mphamvu wosagwirizana ndi kuchepetsa kuvala pa spool, komanso yabwino otaya kukhuthala mkulu, coking zosavuta ndi sing'anga munali inaimitsidwa tinthu nkhani, kupewa coking ndi blockage. Mu chomera cha acetaldehyde chomwe chinayambitsidwa ndi Jilin Chemical Industry Co., Ltd. wochokera ku West Germany, pv-23404 Angle regulating valve ikulimbikitsidwa kuti igwiritsidwe ntchito mmbuyo pansi pa ndondomeko ya kutsika kwakukulu. Poyesa kugwirizanitsa madzi, valve yoyang'anira Angle imapanga oscillation yamphamvu, ndikutumiza phokoso loopsa, spool idzasweka pambuyo pa kuyesa kwa 4h. Panthawiyo, akatswiri akunja amakhulupirira kuti kupanga spool sikunali kwabwino. Wolembayo akuganiza kuti si vuto labwino, koma chifukwa chogwiritsa ntchito mopanda nzeru. Zifukwa za kusweka kwake zikuwunikidwa pansipa. Tikudziwa kuti pakali pano, kupatula mavavu agulugufe ndi ma valve a diaphragm omwe ali ofananira bwino pamapangidwe, zowongolera zina zonse ndizosafanana. Pamene valavu yoyendetsa imasintha njira yothamanga, chifukwa cha kusintha kwa njira yothamanga kudzachititsa) kusintha kwa mtengo. Kuthamanga kwabwino kwa mitundu yonse ya ma valve oyendetsa ndikupangitsa kuti spool ikhale yotseguka (ntchito yabwino), wopanga amangopereka mphamvu yothamanga ya 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 kake. Pamene valavu yoyendetsera ntchito ikugwiritsidwa ntchito mosiyana, mphamvu yothamanga ya valve yoyendetsa idzawonjezeka pamene madzi akuyenda motsatira njira yomwe spool yatsekedwa. Pakuyesa kugwirizana kwa madzi, zochitika zofananira sizingathe kufika pamtunda mwamsanga, ndipo valavu yoyendetsera ntchito imagwiritsidwa ntchito potsegula pang'ono kwa nthawi yaitali. Chifukwa cha mphamvu zopanda malire, padzakhala kusakhazikika kwakukulu. Chifukwa chake valavu yowongolera idzatulutsa kugwedezeka kwamphamvu ndi phokoso loopsa, zomwe zimapangitsa kuti spool ikhale yosweka mwachangu. Pansi pa zochitika zachizoloŵezi, kutsegulidwa kwa valve yoyendetsera bwino kumakhala kochepa, ngakhale kutseguka kwakung'ono kuli kochepa, kotero valavu yoyendetsa ikhoza kugwiritsidwa ntchito moyenera komanso mosamala. Labyrinth control valve idathetsa bwino mavuto a cavitation, phokoso ndi kugwedezeka kwa mavavu wamba Magetsi kapena pneumatic multi-stage labyrinth regulating valve amagwiritsidwa ntchito mu multi-stage axial flow pressure sleeve yopangidwa ndi labyrinth channel regulating valve, kuwongolera kwathunthu kuthamanga kwa sing'anga kudzera valavu, kuchepetsa kwambiri kuthamanga kwa mpweya kapena nthunzi kwaiye mu phokoso valavu, khola Mipikisano mlingo sitepe-pansi bwino kupanga madzi samatulutsa cavitation, ntchito mu mkulu kuthamanga sing'anga malo khola kulamulira valavu, Mungasankhe Multi - spring pneumatic film mechanism kapena actuator yamagetsi. Valavu yowongolera labyrinth imakhala ndi cylindrical disc yokhala ndi kuchuluka kwa malo a coaxial omwe amagawidwa ndi labyrinth ya ma diameter opindika. Malinga ndi magawo osiyanasiyana a sing'anga, mapangidwe amitundu yosiyanasiyana ya maze ndi kuchuluka kwa magawo ophatikizika opangidwa ndi khola la valavu, khola la valve lidzakhala njira yonse yolowera mumayendedwe ang'onoang'ono kapena masitepe ngati kugawa kwa throttling flow. njira, kukakamiza madzimadzi nthawi zonse kusintha otaya njira ndi otaya dera pang`onopang`ono kuchepetsa kupanikizika kwa madzimadzi, kuteteza zimachitika kung`anima cavitation, kutalikitsa moyo utumiki wa valavu mbali. Spool yokhala ndi manja yolimba yokhala ndi zolimba pampando imatsimikizira kutsika kochepa kwambiri. Ogwira ntchito za valve ndi oyenerera kwa mitundu yonse ya zinthu zomwe zimakhala zosavuta kuletsa kutuluka ndi kuyambitsa cavitation. Ku valavu yoyendetsera kuthamanga kwambiri yochokera kunja ya American VTON labyrinth valavu monga chitsanzo, yomwe imagwiritsidwa ntchito ngati kutentha kwambiri komanso kutentha kwambiri, komanso nthawi yoperekera madzi. Kutentha kwapamwamba komanso kuthamanga kwambiri komwe kumatumizidwa kunja kumagwiritsidwa ntchito popanga magetsi, zitsulo, petrochemical ndi mafakitale ena ambiri, kutentha kwambiri komanso kuthamanga kwa valve cavitation, phokoso ndi kugwedeza kwakhala kovuta kuthetsa mutuwo. Labyrinth yowongolera valavu pogwiritsa ntchito ukadaulo wokhwima, idathetsa bwino valavu yowongolera wamba yomwe idakumana nayo monga cavitation, phokoso lalitali, kugwedezeka ndi zovuta zina, yagwiritsidwa ntchito mu boiler yamagetsi yochepetsera madzi ofunda, mpope wapampopi wocheperako kuwongolera koyenda ndi malamulo ena otaya. Valavu yoyang'anira labyrinth imatha kupangidwa mwachindunji pazofunikira zosiyanasiyana za ogwiritsa ntchito, kudzera pakuwongolera kuthamanga kwapakati kuti athetse mavuto a cavitation, phokoso, dzimbiri ndi kugwedezeka. Valavu yoyang'anira mtundu wa labyrinth mu kapangidwe kake kaphatikizidwe kofulumira, kukonza kosavuta, kungakhale kothandiza kwambiri m'malo mwa spool; Mu otaya makhalidwe a ntchito kamangidwe kake, kuti apereke kufananiza otaya kulamulira, ndi okhwima kutsekereza makhalidwe. Chomera chamagetsi chimatengera valavu yowongolera labyrinth, yomwe imatha kuwonetsetsa kuti ntchito yotetezeka komanso yokhazikika, kuwongolera kuchuluka kwake ndikutalikitsa nthawi yokonza. Kwa vavu wamba wotsikira pansi, kuthamanga ndi p1 ndipo kuthamanga kwake ndi v1 pomwe sing'anga imalowa. Pamene sing'anga imathamangira ku gawo la spool, chifukwa cha kugwedezeka kwa spool ndi mpando, khosi la shrinkage phenomenon, kotero kuti kuthamanga kumawonjezeka mofulumira kufika ku v2, ndipo kuthamanga kumachepetsedwa mofulumira ku p2, ndipo nthawi zambiri kutsika kusiyana ndi sing'anga yodzaza. vaporization kuthamanga Pv. Pankhaniyi, sing'anga vaporizes, kupanga thovu. Pamene sing'anga imayenda mu gawo la khosi lomwe limapangidwa ndi chitsulo cha valve ndi mpando, momwe ntchito ikuyendera imasinthanso chifukwa cha kusintha kwa njira. Doko loponderezedwa limakwera ndipo mphamvu ya kinetic imasinthidwa kukhala mphamvu yotheka. Panthawiyi, kuthamanga kumabwerera ku P3 ndi liwiro la v3. Pamene kupanikizika kumaposa mphamvu yochuluka ya vaporization ya sing'anga, Pv, ming'oma yongopangidwa kumene idzaphulika, kutulutsa mphamvu yamphamvu ya m'deralo. Mphamvu yaikulu pamene kuphulika kuphulika kungayambitse kuwonongeka kwakukulu kwa valavu pachimake, mpando wa valve ndi zinthu zina zogwedeza mumphindi, kupanga zomwe zimatchedwa cavitation phenomenon. Cavitation imapangitsa kuti ma valve awonongeke, zomwe zimapangitsa kuti pakhale phokoso, phokoso lalikulu komanso kugwedezeka kwa zigawo za valve, motero zimakhudza chitetezo ndi mphamvu ya dongosolo lonse. Chifukwa cavitation idzatulutsa zikwizikwi zamlengalenga zomwe zimakhudzidwa ndi mphamvu ya throttle element, motero, pongowonjezera kuuma kwa pamwamba pa valve core ndi mpando wa valve sikungathe kuthetsa vuto la cavitation. Mapangidwe a anti-cavitation a labyrinth control valve ndi kugwiritsa ntchito labyrinth core multistage sitepe-pansi mfundo, pokakamiza sing'anga kuyenda kudutsa mndandanda wa ma angles oyenerera a Angle kuti azitha kuyendetsa bwino, kuti akwaniritse cholinga. potsika. Mosasamala kanthu za kutsika kwapang'onopang'ono, kukana kwa ma curve amenewa kumachepetsa mlingo umene ma TV amatha kutuluka pachimake. Pambuyo pa multistage depressurization, kupanikizika kwa sing'anga nthawi zonse kumakhala pamwamba pa mphamvu ya saturated vaporization ya sing'anga pv, motero kupeŵa zochitika za cavitation ndikuchotsa zinthu zosatetezeka. Paketi ya labyrinth core paketi imapangidwa ndi mbale zingapo za labyrinth zomangidwa pansi pamikhalidwe yapadera (pogwiritsa ntchito zomatira zochokera kunja). Mbale iliyonse ya labyrinth imakonzedwa ndi njira yabwino yopangira kupanga njira zingapo, ndipo njira iliyonse imatha kudutsa mumtundu wina wa sing'anga, ndipo kukana kwapakatikati kumaperekedwa ndi mndandanda wa Angle yolondola yopindika mumsewu. Malingana ndi zofunikira zosiyanasiyana za ogwiritsa ntchito, kupyolera mu mawerengedwe, kusankha mitundu yosiyanasiyana ya ma curve, kotero kuti liwiro lapakati pa phukusi la labyrinth core nthawi zonse limakhala lochepa mumtundu wina. Ponena za kukhwima kwachilendo, pamene kuthamanga kuli kochepa kapena kufupi ndi 30m/S, kukhudzika kwa throttle element kumakhala kochepa. Chifukwa kuchuluka kwa kuthamanga ndi kuchuluka kwa ma bend pa disc labyrinth kumatha kukhala kosiyanasiyana, ndipo makulidwe a disc amatha kupangidwa kuti akhale ochepa kwambiri (mwachitsanzo 2.5mm), valavu imatha kupangidwa kuti ipereke kuwongolera koyenda molingana ndi zomwe wogwiritsa ntchito akufuna. Malinga ndi kagwiritsidwe ntchito ka valavu ndi zofunikira za ogwiritsa ntchito, mawonekedwe othamanga a valavu yowongolera amatha kupangidwa kuti akhale ozungulira, ofanana peresenti, peresenti yosinthidwa ndi mitundu ina yapadera yokhotakhota. Chifukwa sing'anga yogwirira ntchito mu valavu yopangira magetsi imakhala yamadzimadzi (makamaka madzi), valavu yolowera mu labyrinth nthawi zambiri imatenga mawonekedwe oyandikira. Pamene kayendedwe kamtundu wamtundu wamtundu, sing'anga mu thupi la valve, choyamba kupyolera mu phukusi lapakati, kenako kupyolera muzitsulo za valve, pambuyo pa kutuluka kofunikira kwambiri kuchokera ku mpando wa valve, kutuluka kwa valve kumasonyezedwa ndi chizindikiro pa thupi la valve. .