apamwamba flange kugwirizana gulugufe valavu

CTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> Mavavu agulugufe ndi opepuka, ang'onoang'ono komanso opepuka kuposa mitundu ina ya ma valve olamulira, kuwapanga kukhala chisankho chabwino kwambiri choyendetsera kayendetsedwe ka kayendetsedwe ka ntchito zambiri.Mwachizoloŵezi, ma valve a butterfly akugwiritsidwa ntchito pokhapokha pa / off applications ndipo ali angwiro pa ntchitoyi.Komabe, akatswiri ena amawaona ngati osavomerezeka. imabwera pakuwongolera kuyenda mu dongosolo lotsekeka. Ma valve a butterfly amagwiritsa ntchito ma diski ozungulira kuti azitha kuyendetsa mipope. Ma disks nthawi zambiri amagwira ntchito madigiri 90, choncho nthawi zina amatchedwa ma valve rotary valvu. Kawirikawiri, amagwiritsidwa ntchito pamene chuma chimaganiziridwa. ndi/kapena ma diski okutidwa angagwiritsidwe ntchito popereka ntchito yofunikira.High Performance Butterfly Valves (HPBVs) - kapena Double Offset Valves - tsopano ndi muyezo wamakampani wama valve owongolera agulugufe ndipo amagwiritsidwa ntchito kwambiri pakuwongolera. kutsika kwapang'onopang'ono kosalekeza kapena kuzungulira kwapang'onopang'ono. Ubwino wa HPBV umaphatikizapo njira yowongoka yowongoka, mphamvu yapamwamba, komanso kuthekera kodutsa zolimba zolimba komanso zowoneka bwino mosavuta. poyerekeza ndi mitundu ina ya mavavu kukula kwake kuposa mainchesi 12. Amapereka ntchito yabwino yotsekera pamtunda wambiri wa kutentha ndipo amapezeka m'mapangidwe osiyanasiyana a thupi kuphatikizapo chofufumitsa, lug ndi double flanged.Amakhala opepuka kwambiri komanso ophatikizana kuposa mitundu ina ya ma valve.Mwachitsanzo, ANSI ya 12 inchi Kalasi 150 valavu yamagulu awiri yopangidwa ndi mbali ziwiri imalemera mapaundi 350 ndipo ili ndi mawonekedwe a maso ndi maso a mainchesi 13.31, pamene valavu ya butterfly ya 12 inchi yofanana imalemera mapaundi 200 okha ndipo ili ndi mawonekedwe a maso ndi maso ndi mainchesi atatu. Ma valve a butterfly ali ndi zofooka zina zomwe zimawapangitsa kukhala osayenera kuyendetsa 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. Chifukwa dera lalikulu la diski limakhala ngati chiwongolero, kugwiritsa ntchito mphamvu yamphamvu ya sing'anga yoyenda kupita ku shaft yoyendetsa, mavavu agulugufe wamba nthawi zambiri sagwiritsidwa ntchito pakukakamiza kwambiri. . Ma valve olamulira agulugufe nthawi zina amatha kukhala aakulu kwambiri, omwe amatha kusokoneza ntchito. Izi zikhoza kukhala chifukwa chogwiritsa ntchito ma valve amtundu wa mzere, makamaka ma valve a butterfly apamwamba kwambiri. Chachiwiri, valavu yokulirapo imatha kugwira ntchito pafupipafupi pamitseko yapansi ya valve, ndipo kukangana kwa chisindikizo kumatha kukhala kwakukulu mu valavu yagulugufe. chifukwa cha kuwonjezereka kwa maulendo a valve, chodabwitsa ichi chikukokomeza kwambiri kusiyana kwa ndondomeko yokhudzana ndi kukangana komwe kumayambitsa kufa. Omasulira nthawi zina amagwiritsa ntchito mavavu agulugufe kuti akhale otsika mtengo kapena kuti agwirizane ndi kukula kwa mzere woperekedwa mosasamala kanthu za zolephera zawo. Pali chizolowezi chokulitsa mavavu agulugufe kuti asatsine mapaipi, zomwe zingayambitse kusawongolera njira. Cholepheretsa chachikulu ndi chakuti njira yabwino yoyendetsera phokoso siili yotalikirapo ngati valavu ya mpira kapena valavu yamagulu agulugufe. Kawirikawiri, chipikacho ndi chosavuta kulamulira pamene chiwongolero chowongolera chikugwira ntchito motsatira ndondomeko ndipo phindu la ndondomeko liri pafupi ndi mgwirizano.Choncho, phindu la ndondomeko ya 1.0 limakhala cholinga chowongolera bwino, ndi chiwerengero chovomerezeka cha 0.5 mpaka 2.0 ( ndime 4:1). Kuchita bwino kumakhala bwino kwambiri pamene kupindula kwakukulu kumachokera kwa wolamulira.Dziwani kuti mumayendedwe opindula a Chithunzi 1, phindu la ndondomekoyi limakhala lalikulu kwambiri m'dera lomwe lili pansi pa 25% ya maulendo a valve. Kupindula kwa ndondomeko kumatanthawuza mgwirizano pakati pa kutulutsa ndondomeko ndi kusintha kolowera. Kupwetekedwa kumene kupindula kumakhalabe pakati pa 0.5 ndi 2.0 ndi njira yabwino kwambiri yoyendetsera valve. kusakhazikika kungachitike. Mapangidwe a butterfly disc amakhudza kwambiri kuthamanga kwa ma valve pamene valavu imachokera kutsekedwa kupita ku open.Discs okhala ndi mawonekedwe ofanana peresenti amatha kubweza bwino madontho amphamvu omwe amasiyana ndi flow. ndi abwino.Zotsatira zake ndizolondola kwambiri, kusiyana pakati pa kuyenda ndi kuyenda kwa valve. Mavavu agulugufe posachedwapa anayambitsa zimbale ndi chibadidwe ofanana kuchuluka otaya makhalidwe.Izi amapereka unsembe Mbali kuti amalola unsembe ndondomeko kupindula mu ankafuna 0.5 kuti 2.0 osiyanasiyana pa ambiri Stroke. Kukonzekera kumeneku kumapereka ulamuliro wabwino, ndi phindu lovomerezeka la 0.5 mpaka 2.0, kuchokera pafupifupi 11% lotseguka kufika ku 70%, kuwonjezereka kwapang'onopang'ono katatu poyerekeza ndi mawonekedwe apamwamba a butterfly valve (HPBV) ofanana. , maperesenti ofanana a ma disks amapereka kusinthasintha kwapang'onopang'ono. Ma valve a butterfly omwe ali ndi chikhalidwe chofanana ndi chiwerengero, monga Control-Disk valve, ndi abwino kwa njira zomwe zimafuna kuwongolera bwino kwa kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe kake. Ngati valavu ya butterfly sikuyenda bwino, kungoyisintha ndi valavu yokwanira bwino idzathetsa vutoli.Mwachitsanzo, kampani ya pepala ikugwiritsa ntchito ma valve a butterfly ochulukirapo kuti athetse kuchotsedwa kwa chinyezi kuchokera ku zamkati. kuyenda, zomwe zimapangitsa kuti pakhale kusiyana kwa 3.5% ndi 8.0%, motsatira.Zambiri za moyo wawo zimagwiritsidwa ntchito pamanja. Ma valve awiri agulugufe a NPS 4 oyenerera a Fisher Control-Disk okhala ndi chowongolera ma valve a digito adayikidwa. kusintha kulikonse kwapadera. Kusayenda bwino kwa madzi ndi kuyendetsa kayendedwe kazitsulo muzitsulo zoziziritsa zitsulo kunapangitsa kuti zinthu zikhale zosagwirizana.Ma HPBV asanu ndi anayi omwe adayikidwa sanathe kulamulira bwino madzi akuyenda momwe amafunikira. Chomeracho chinkafuna kukhazikitsa ma valve omwe angayang'anire bwino ndondomekoyi ndipo amafunika kuchepetsa ndalama zowonjezera.Chomeracho chidzawononga $ 10,000 kuti chilowetse mapaipi a valve iliyonse kuti asinthe kuchokera ku HPBV kupita ku ma valves a mpira. valavu yomwe imakumana ndi miyeso ya maso ndi maso ya ma HPBV apano. Valve ya Control-Disk idayesedwa mbali ndi mbali ndi imodzi mwa ma HPBV asanu ndi anayi omwe analipo ndipo idachita zomwe zidanenedwazo. kuti m'malo $90,000 mipope kwa valavu segmented mpira, ndi valavu mpira ndalama pafupifupi 25% kuposa valavu gulugufe. Mavavu owongolera-Disk amapereka chiwongolero cholondola ndikuthandizira kuthetsa kusinthasintha kwa chinthu chomaliza.Mpheroyo akuti kuyika mavavu a Control-Disk kudzapulumutsa pafupifupi $1 miliyoni pachaka. Poyerekeza ndi mitundu ina yambiri ya ma valve, ma HPBV okhala ndi malo owonetsera digito ali ndi ndalama zochepa zoyambira kukhazikitsa ndipo, akakula bwino, amapereka malo oyenerera olamulira. Iwo ali ndi mphamvu zambiri komanso zoletsa zochepa zothamanga. osiyanasiyana, ofanana ndi globe kapena mavavu a mpira, ndipo amatenga malo okha a HPBV. Posankha ma valve, makamaka ma HPBV, onetsetsani kuti ndi kukula kwake koyenera, mwinamwake iwo akhoza kulamulidwa ndi chipinda chowongolera. Ndikofunikiranso kulingalira kalembedwe ka valve, makhalidwe achibadwa ndi kukula kwa valve, zomwe zidzapereke mphamvu zambiri zoyendetsera ntchito. ntchito. Mark Nymeyer ndiye woyang'anira zolumikizirana zapadziko lonse wa Emerson Automation Solutions, yemwe ali ndi udindo woyang'anira magalimoto. Izi si paywall.Izi ndi khoma laulere.Sitikufuna kusokoneza cholinga chanu pano, kotero zimangotenga masekondi angapo.