Onani Chithunzi Chachikulu
Kufunika kwa mphamvu kukukulirakulira pakati pa kusintha kwa nyengo komanso kufunikira kopeza zinthu zabwino, zongowonjezedwanso komanso zosavulaza kuti apange magetsi.Izi zimatsogolera opanga ma valve opanga mafakitale m'makampani opanga magetsi kuti afunefune zida zogwirira ntchito zomwe zitha kuwonjezera mphamvu zamagetsi ndikuwonjezera mphamvu zamagetsi.
Poyang'ana chithunzi chachikulu, mavavu amaoneka ngati kachigawo kakang'ono chabe ka kukula kwa siteshoni yamagetsi.Ngakhale izi zingakhale zazing'ono, udindo wawo ndi wofunikira kwambiri pamagetsi.Ndipotu, pali ma valve ambiri pamagetsi amodzi.Iliyonse mwa izi imatenga maudindo osiyanasiyana.
Ngakhale kuti mapangidwe a ma valve ambiri sanasinthe, zida za valve ndi njira zopangira zakhala zikuyenda bwino.Poganizira izi, ma valve tsopano amatha kugwira ntchito mwaukadaulo komanso mwaluso.Nkhaniyi ikupereka chidziwitso pa ma valve omwe amagwiritsidwa ntchito m'mafakitale amagetsi, kufunikira kwawo komanso magulu.
Ma valve Omwe Amagwiritsidwa Ntchito Pamagetsi Amagetsi
Bolted Bonnet ndi Pressure Seal Gate Valves
Ma valve a zipata ali ndi diski kapena wedge yomwe imakhala ngati chipata chomwe chimatchinga njira yotuluka.Osapangidwira kuti azigwedeza, ntchito yaikulu ya mavavu a pakhomo ndikupatula ma TV ndi zoletsa zochepa.Kuti mugwiritse ntchito bwino valve yachipata, ingogwiritsani ntchito ngati yotseguka kapena yotsekedwa kwathunthu.
Ma valve a zipata, pamodzi ndi ma valve padziko lonse lapansi, ali m'gulu la ma valve odzipatula.Ma valve awa amatha kuyimitsa kuyenda kwa media pakagwa mwadzidzidzi kapena pomwe payipi ikufunika kukonzedwa.Izi zithanso kulumikiza zowulutsa kuzinthu zakunja kapena zitha kuwongolera njira yomwe media iyenera kutsatira.
Vavu ya boneti yotsekeredwa imachepetsa kukokoloka, kukangana ndi kutsika kwamphamvu.Izi ndichifukwa cha kapangidwe kake ka doko kowongoka.Kwa ma valve osindikizira pachipata, pali mitundu iwiri yogwiritsira ntchito kuthamanga kwambiri ndi kutentha: disc disc ndi flexible wedge.
Boneti ya bolt imagwirabe ntchito pa kutentha kwakukulu koma mtundu uwu ukhoza kutsika mphamvu ikachuluka.Kwa mapulogalamu apamwamba kuposa 500 psi, gwiritsani ntchito valve yosindikizira chifukwa cha chisindikizo chake chikuwonjezeka pamene mphamvu ya mkati ikuwonjezeka.
Mapangidwewo amalolanso kulumikizana kochepa pakati pa media ndi disk.Panthawiyi, mapangidwe a wedge amapangitsa kuti asamangokhalira kukakamira pampando.
Pazinthu zomwe zili pansi pa ANSI Class 600, gwiritsani ntchito valve yotsekera pachipata cha bonnet.Komabe, pakugwiritsa ntchito kuthamanga kwambiri, gwiritsani ntchito ma valve osindikizira pachipata.Kuthamanga kwakukulu kumatha kuchotsa mabawuti mumtundu wa boneti.Izi zitha kuyambitsa kutayikira.
Bolted Bonnet ndi Pressure Seal Globe Valves
Valavu yapadziko lonse lapansi ndi yofanana ndi valavu yachipata koma m'malo mwa diski yotsekeka, imagwiritsa ntchito diski yofanana ndi dziko lapansi yomwe imatseka, kuyatsa kapena kutsitsa media.Makamaka, valavu yamtunduwu ndicholinga chogwedeza.Choyipa cha valve yapadziko lonse lapansi ndikuti sichingagwiritsidwe ntchito ndi media ndi mitengo yothamanga kwambiri.
Ma valve a globe, popanga mphamvu zamagetsi, ndi othandiza pakuwongolera kuyenda.Kuphatikiza apo, poyerekeza ndi ma valve ena, valavu yapadziko lonse lapansi ili ndi kapangidwe kosavuta, kupangitsa kukonza kosavuta.Kapangidwe kake kamapangitsa kukangana kochepa komwe kumatalikitsa moyo wautumiki wa valve.
Zoganizira posankha ma valve a globe ndi mtundu wa sing'anga, kuthamanga kwa liwiro la sing'angayo komanso kuchuluka kwa kuwongolera kofunikira kuchokera ku valve.Kuphatikiza pa izi, mpando, disc ndi chiwerengero cha kutembenuka kuti mutsegule ndi kutseka valve sikuyeneranso kutengedwa mopepuka.
Boneti ya bolt imagwirabe ntchito pa kutentha kwakukulu koma mtundu uwu ukhoza kutsika mphamvu ikachuluka.Kwa mapulogalamu apamwamba kuposa 500 psi, gwiritsani ntchito valve yosindikizira chifukwa chisindikizo chake chimawonjezeka pamene mphamvu ya mkati ikuwonjezeka.
Ma Bolted Bonnet Swing Check kapena Pressure Seal Tilt Disc Check Mavavu
Ma valve owunika ndi anti-backflow valves.Izi zikutanthauza kuti amalola unidirectional media kuyenda.Mapangidwe a 45-degree angled disc amachepetsa kumenyedwa kwa madzi komanso amatha kusinthana ndi media ndi liwiro lalikulu.Komanso, mapangidwewo amalola kutsika kwapang'onopang'ono.
Ma valve owunika amateteza makina onse a mapaipi ndi zida kuti zisawonongeke zomwe zingawonongeke chifukwa chobwerera m'mbuyo.Pa ma valve onse, fufuzani ma valve, mwinamwake, amawononga kwambiri chifukwa izi nthawi zambiri zimakhala zowonekera kwambiri pamasewero ndi zovuta zina zogwirira ntchito.
Kuphatikizika kwamadzi, kupanikizana ndi kukwatiwa ndi zina mwazinthu zomwe zimafala kwambiri pama cheke.Kusankha valavu yoyenera kumatanthauza kugwira ntchito bwino kwa valve.
Boneti yokhala ndi ma bolts ndi ma valve seal seal tilt disc ndiyotsika mtengo kuposa ma valavu aliwonse.Kuonjezera apo, mapangidwe a disk tilt amasindikiza mwamphamvu kwambiri kuposa mapangidwe ena a valve.Popeza ili ndi ntchito yosavuta, kusunga valavu yamtunduwu ndikosavuta.
Ma valve owunikira ndizofunikira zowonjezera pakugwiritsa ntchito kulikonse komwe kumalumikizidwa ndi magetsi ophatikizika ndi magetsi oyaka ndi malasha.
Ma Valves Awiri Awiri
Zomwe zimaonedwa kuti ndizokhazikika, zogwira mtima komanso zopepuka kusiyana ndi swing check valve, valve yoyang'ana iwiri imakhala ndi akasupe omwe amawonjezera nthawi yoyankhira valve.Udindo wake mu makina opangira magetsi opangira magetsi ndikutengera kusintha kwadzidzidzi mumayendedwe azama media.Izi, nthawi zambiri zimachepetsa chiopsezo cha nyundo yamadzi.
Nozzle Check Valves
Uwu ndi mtundu wapadera wa valavu yoyendera.Nthawi zina amatchedwa silent check valves.Mapangidwewa ndi othandiza makamaka ngati pakufunika kuyankha mwachangu motsutsana ndi kubwereranso.Komanso, pakakhala chiwopsezo chokhazikika chakubwerera m'mbuyo, gwiritsani ntchito valve iyi.
Mapangidwewa amachepetsa zotsatira za kumenyedwa kwa madzi komanso kugwedezeka komwe kumachitika chifukwa cha TV.Ikhozanso kuchepetsa kutaya kwa kuthamanga ndikupereka kuyankha mwamsanga kwa shutoffs.
Ma valve owunika a Nozzle amaganiziranso kuthamanga kofunikira kuti mutsegule valve.Fluid media siyenera kukhala pa liwiro lalikulu kuti atseke valavu.Komabe, valavu imatseka nthawi yomweyo pamene pali kuchepetsa kwakukulu kwa kayendedwe kazofalitsa.Izi ndi kuchepetsa kumenyedwa kwa madzi.
Ma valve cheke a Nozzle ndi osinthika kwambiri kuti agwirizane ndi zofunikira zamagetsi.Itha kupangidwa kuti igwirizane ndi pulogalamuyo.Sizidalira ngakhale kukula kwa mapaipi.
Ma Vavu A Mpira Okhala Ndi Zitsulo
Mavavu a mpira ndi gawo la banja la quarter-turn.Mbali yake yayikulu ndi mawonekedwe a mpira omwe amatembenuza 900 kuti atsegule kapena kutseka.Izi zimakhala ngati choyimitsa atolankhani.
Malo opangira magetsi amagwiritsa ntchito ma valve okhala ndi zitsulo chifukwa amatha kupirira kuthamanga kwambiri komanso kutentha kupitirira 10000F.Kuphatikiza apo, ma valve a mpira okhala ndi zitsulo amakhala olimba kwambiri ndipo samakonda kuvala mipando poyerekeza ndi anzawo okhala pansi.
Kusindikiza kwake kwachitsulo-ku-zitsulo kumapereka mphamvu zotsekera bwino poyerekeza ndi ma valve ena.Kukonzanso ma valve ngati amenewa kumawononga ndalama zochepa.Popeza imatha kupirira kutentha kwambiri, imalimbananso ndi moto.
Valovu ya Gulugufe Wapamwamba
Vavu yagulugufe ili ndi thupi lokhala ngati lopindika lomwe lili ndi diski yopyapyala yomwe imazungulira mozungulira.Pokhala wopepuka, ndikosavuta kukhazikitsa, kukonza ndi kukonza.
Popanda kudziwika kuti HPBV, ma valve agulugufe ochita bwino kwambiri amakhala ndi zosintha ziwiri m'malo mwa chimodzi.Izi zimapanga kuthekera kosindikiza bwinoko.Zimapanganso kukangana kochepa, zomwe zimatsogolera ku moyo wautali wautumiki wa valve.
Ma valve agulugufe ogwira ntchito kwambiri nthawi zambiri amagwiritsidwa ntchito pakugwiritsa ntchito madzi, machitidwe ozizira amadzi ndi ntchito zamadzi otayira m'mafakitale.HPBV imatha kupirira kuthamanga kwambiri komanso kutentha ngati malo okhala ndi chitsulo.
Ma Vavu Agulugufe Okhazikika Okhazikika
Mtundu woterewu wa agulugufe nthawi zambiri umagwiritsidwa ntchito pochepetsa kuthamanga ndi kutentha, komanso kugwiritsa ntchito magetsi ocheperako.Ndi mpando wake wopangidwa ndi mphira wapamwamba kwambiri, umatha kutseka valavuyo bwino pamagwiritsidwe otsika.
Mtundu uwu ndi wosavuta kukhazikitsa ndi kusamalira.Mapangidwe ake osavuta amapangitsa kuti ma valve okhazikika okhazikika azikhala okwera mtengo kwambiri kuyika.
Mavavu a Gulugufe Atatu
Mavavu agulugufe atatu ali ndi chowonjezera chachitatu choyikidwa pampando.Kusintha kwachitatu kumeneku kumachepetsa kukangana pakutsegula ndi kutseka kwa valve.Vavu iyi imaperekanso kulimba kwa gasi komanso kuyenda kwapakati pawiri.Uwu ndiye mtundu wothandiza kwambiri wa valavu yagulugufe pamene kuthamanga kwambiri ndi kutentha ndizofunika kwambiri.
Imapereka kusindikiza kolimba kwambiri komanso moyo wautali wautumiki pakati pa mitundu yonse yosiyanasiyana ya mavavu agulugufe pamsika.
Gulu la Vavu mu Makampani Opangira Mphamvu
Mtundu uliwonse wa ntchito yopangira mphamvu umafunikira seti yapadera yoyendetsera kayendetsedwe kake.Izi zikunenedwa, pali miyandamiyanda ya mavavu mu dongosolo la mapaipi opatsidwa m'mafakitale amagetsi.Chifukwa cha mtundu wa njira zomwe zikuchitika mu gawo lina la chitoliro, ma valve a mafakitale a zomera zamagetsi amafunikanso kutenga maudindo osiyanasiyana.
Mavavu a High Integrity Slurries
Kuti slurry ikhale yolimba kwambiri, ma valve ayenera kutsekedwa mwamphamvu.Diskiyi iyenera kusinthidwa mosavuta chifukwa nthawi zambiri, ma slurries omwe amadutsa amakhala owononga kapena owononga.Kwa thupi, yabwino kwambiri ndi chitsulo ndi chitsulo chosapanga dzimbiri pa tsinde.
Mavavu a Ntchito Zodzipatula
https://www.youtube.com/watch?v=aSV4t2Ylc-Q
Mavavu omwe amagwiritsidwa ntchito kudzipatula ndi ma valve omwe amaletsa kuyenda kwa media chifukwa cha zifukwa zingapo.Izi zili m'magulu anayi:
1. Chipata cha Bonnet Vavu
Vavu yabwino kwambiri yachipata cha bonnet iyenera kupangidwa ndi chitsulo chonyezimira.Mphete zake zokhalamo ziyeneranso kuwotcherera kuti zisatayike.
2. Pressure Seal Gate Valve
Mapangidwe awiriwa, opindika ndi ofanana, ayenera kukhala olimba komanso odziyeretsa okha.Ziyeneranso kukhala zosavuta kukonza ndi kukonza.
3. Pressure Seal Globe Valve
Kwa mautumiki apamwamba, ma disc, mphete zapampando, ndi kumbuyo kwake ziyenera kukhala zolimba kuti zitsimikizire moyo wautali wautumiki.
4. Bolted Bonnet Globe Valve
Valavu ya globe ya bolted bolted globe valve imagwiritsidwa ntchito nthawi zambiri pothandizira ntchito, valavu yabwino yamtunduwu iyenera kuponyedwa ndi zigawo zowonjezereka m'madera omwe ali ndi nkhawa zambiri.Kuonetsetsa kuti pali zocheperako zotayikira, mphete yapampando iyenera kuwotcherera.
Mavavu a Chitetezo Chosinthira Kuthamanga
Ma valve awa amateteza kuthamanga kwa magazi.Mavavu amtundu uwu ayenera kukhala ndi malo olimba komanso oletsa kuwononga.Kuphatikiza pa izi, valavu iyenera kukhala ndi zikhomo zazikulu za hinge kuti pakhale malo otengera kusuntha kwa media.
Mavavu a m'gululi ndi awa:
- Valavu yopindika ya bonnet yopindika
- Valavu yosindikizira yosindikiza
- Valve yowunikira nozzle
- Ma valve awiri oyendera mbale
Mavavu a Ntchito Zapadera
Palinso ntchito zapadera za mavavu ena.Izi zimadalira mtundu wa mphamvu zamagetsi komanso zosowa za magetsi.
- Vavu yagulugufe yotsatizana katatu
- Vavu yagulugufe yogwira ntchito kwambiri
- Vavu yagulugufe wapawiri
- Vavu yokhala ndi zitsulo zokhala ndi zitsulo
- Vavu yagulugufe yokhazikika yokhazikika
Chidule
Mavavu a mafakitale omwe amagwiritsidwa ntchito m'mafakitale opangira magetsi nthawi zambiri amakumana ndi kupsinjika kwambiri komanso kupsinjika.Kudziwa mtundu woyenera wa vavu kumapangitsa kuti magetsi azigwiritsidwa ntchito bwino.
Nthawi yotumiza: Feb-25-2018