Kodi Valavu ya Mpira Imagwira Ntchito Bwanji: Buku Lotsogolera -Valavu ya NSW

Chiyambi: Gawo Lofunika Kwambiri mu Machitidwe a Madzi

Valavu ya mpira imagwira ntchito pozungulira mpira wozungulira wokhala ndi dzenje lobowoledwa kuti ilamulire kuyenda kwa madzi.Pamene chibowo chikugwirizana ndi payipi, valavu imatsegulidwa; ikazunguliridwa madigiri 90, gawo lolimba la mpira limatseka kuyenda kwa madzi, zomwe zimapangitsa kuti kutsekeka kwa mpweya kukhale kolimba komanso kutsika pang'ono kwa mphamvu.

Kumvetsetsa momwe valavu ya mpira imagwirira ntchito ndikofunikira kwa mainjiniya, magulu okonza, ndi akatswiri ogula omwe amagwira ntchito m'makina amadzimadzi amafakitale.mavavu a mpiranthawi zambiri amaonedwa ngati zipangizo zosavuta kuyatsa/kuzimitsa, kapangidwe kake ka mkati, zipangizo, ndi kasinthidwe kake zimakhudza mwachindunji chitetezo cha ntchito, magwiridwe antchito, ndi mtengo wonse wa umwini.

Bukuli likunena zambiri kuposa kungofotokoza mwachidule.chidziwitso chaukadaulo pamlingo wa uinjiniyandiZoganizira zothandiza pakupeza zinthu ndi moyo wonse, kuthandiza mainjiniya ndi ogula kupanga zisankho zodziwa bwino ntchito.

Kodi Valavu ya Mpira Imagwira Ntchito Bwanji? (Mfundo Yogwirira Ntchito Yafotokozedwa)

Valavu ya mpira imagwira ntchito pamfundo yogwirira ntchito kotala:

1. Malo Otseguka
   Pamene chogwirira kapena choyendetsera magetsi chikugwirizana ndi payipi, chitoliro chamkati cha mpira chimagwirizana ndi njira yoyendera madzi. Madzi amadutsa popanda kugwedezeka kwambiri komanso kutayika kwa mphamvu.

2. Malo Otsekedwa
   Kuzungulira chogwirira kapena choyendetsera ndi madigiri 90 kumatembenuza mpirawo kuti mbali yake yolimba ilepheretse kuyenda. Mpando wapansi umakanikizidwa mwamphamvu motsutsana ndi mpirawo ndi mphamvu ya dongosolo, zomwe zimapangitsa kutichisindikizo chothandizidwa ndi kupanikizika.

Chidziwitso cha Uinjiniya:
Mphamvu yogwirira ntchito yavalavu ya mpirasiikhazikika. Mphamvu yayikulu kwambiri imachitika panthawi yoyambira kusweka ("mphamvu yosweka kuti igwire ntchito"). Mphamvu yolondola ya mphamvu yomwe wopanga amapereka ndi yofunika kwambiri pakukula koyenera kwa actuator komanso kudalirika kwa nthawi yayitali.

Kapangidwe ndi Kusankha Ma Valuvu a Mpira pa Ntchito Zamakampani

Kudalirika kwa valavu ya mpira kumachokera ku kapangidwe kake kolimba ka makina, koma magwiridwe antchito amasiyana kwambiri kutengera tsatanetsatane wa kapangidwe ndi kusankha kwa zinthu.

Zigawo Zazikulu ndi Zofunika Kuziganizira

Thupi la Vavu

Thupi limagwira ntchito ngati chinthu chachikulu chosungira kupanikizika. Zipangizo zodziwika bwino zimaphatikizapo chitsulo cha kaboni (WCB), chitsulo chosapanga dzimbiri (316), ndi chitsulo chosapanga dzimbiri cha duplex. Kusankha kumadalira mtundu wa kupanikizika, kutentha, kukana dzimbiri, ndi mtengo.

Chidziwitso Chochokera:
Nthawi zonse tsimikizirani Zikalata Zoyesera Zinthu (MTCs) motsatira miyezo ya ASME kapena ASTM.

Mpira

Mpirawu uli ndi doko la kayendedwe ka madzi ndipo umazungulira kuti ulamulire kayendedwe ka madzi. Zophimba pamwamba ndi zokutira monga chrome plating yolimba kapena ceramic coat zimapangitsa kuti madzi asawonongeke komanso kuchepetsa kuuma kwa madzi.

Pa ntchito zowongolera,Mipira ya V-portimapereka kulondola kwabwino kwa throttling poyerekeza ndi mapangidwe wamba a round-port.

Mipando

Mipando imapanga chisindikizo pakati pa mpira ndi thupi la valavu. Zipangizo zodziwika bwino za mipando ndi izi:

• PTFE / RPTFE:Kukangana kochepa, koyenera ntchito zambiri

• Ma polima apamwamba komanso openyetsetsa:Kwa kutentha kwakukulu ndi kupsinjika

• Mipando yachitsulo:Zofunikira pa ntchito zotentha kwambiri kapena zotentha kwambiri

Ma valve oteteza moto ayenera kutsatira malamulo oteteza motoAPI 607 ​​kapena ISO 10497miyezo.

Tsinde

Tsinde limatumiza mphamvu kuchokera ku actuator kupita ku mpira.tsinde losaphulikandi chitetezo chofunikira kwambiri. Kuyika graphite yokhala ndi mphete zambiri ndi masiponji odzaza madzi amoyo kumatsimikizira kutseka kwa nthawi yayitali komanso kuchepetsa mpweya woipa womwe umatuluka.

Mitundu ya Ma Valves a Mpira: Doko Lonse, Doko Lochepetsedwa, ndi Trunnion Yokwera

Kusankha mtundu woyenera wa valavu ya mpira ndi chimodzi mwa zisankho zofunika kwambiri zaukadaulo ndi zamalonda.

Chidziwitso cha Uinjiniya:
Ma valve a mpira opangidwa ndi TrunnionThandizani mpira mbali zonse ziwiri, kuchepetsa katundu wa mipando ndi mphamvu yogwiritsira ntchito, zomwe zimapangitsa kuti zikhale zoyenera kugwiritsidwa ntchito pa Class 600+ ndi mainchesi akuluakulu.

Mapulogalamu Ofala a Valavu ya Mpira

Chifukwa cha kutsekedwa kwawo mwamphamvu, kugwira ntchito mwachangu, komanso kusafunikira kukonza mokwanira, ma valve a mpira amagwiritsidwa ntchito kwambiri m'magawo amafakitale:

• Mapaipi a mafuta ndi gasi

• Kukonza mankhwala ndi petrochemical

• Kuchiza ndi kuchotsa mchere m'madzi

• Makina opangira magetsi

• Chakudya, zakumwa, ndi kukonza mankhwala (ma valve a ukhondo)

Kapangidwe kabwino ka valavu ya mpira kumadaliramtundu wa media, kuthamanga, kutentha, kuchuluka kwa kayendedwe ka zinthu, ndi zofunikira pa chitetezo.

Ma Valves a Mpira Opangidwa ndi Manja ndi Odzichitira Pawokha

Ma Vavu a Mpira a Manual

Ma valve oyendetsedwa ndi manja amagwiritsa ntchito zogwirira za lever kapena ma gearbox. Ndi osavuta, otsika mtengo, komanso oyenera kugwiritsidwa ntchito nthawi zambiri.

Ma Vavu a Mpira Odzichitira Pawokha

Ma valve odziyimira pawokha amagwiritsa ntchito ma actuator amagetsi, opumira mpweya, kapena a hydraulic kuti agwire ntchito patali kapena pafupipafupi.

Langizo Logulira:
Onetsetsani kuti valavu ndi mawonekedwe oyika a actuator zikugwirizana, nthawi zambiri paISO 5211miyezo.

Ma Vavu a Mpira Odziwika Bwino a Ntchito Zinazake

• Ma Vavu a Mpira wa V-Port:Yapangidwira kuwongolera kayendedwe ka madzi ndi kupondereza madzi

• Ma Vavu a Mpira wa Ma Port Ambiri (njira zitatu / njira zinayi):Amagwiritsidwa ntchito popatutsa, kusakaniza, kapena kusintha kayendedwe ka madzi

• Ma Vavu a Mpira Otsika (LE):Yapangidwa kuti ichepetse mpweya woipa womwe umatuluka m'mlengalenga ndipo ikutsatira ISO 15848

Pa ntchito zotulutsa mpweya wochepa, malipoti oyesa ovomerezeka ayenera kufunikira nthawi zonse pofufuza.

Kuganizira za Kukhazikitsa, Kusamalira, ndi Mtengo wa Moyo

Njira Zabwino Zokhazikitsira

1. Patulani ndi kuchepetsa kupanikizika kwa payipi musanayike

2. Onetsetsani kuti flange ikugwirizana bwino popanda kukakamiza

3. Pakuwotcherera, tetezani mipando yamkati ku kutentha kwambiri

4. Gwiritsani ntchito zipewa zoteteza ponyamula ndi kusunga

Kusamalira ndi Kuthetsa Mavuto

• Zungulirani ma valve nthawi ndi nthawi kuti musamamatire

• Yang'anani zomangira za tsinde ndi zomatira za thupi kuti muwone ngati pali kutuluka kwa madzi kunja

• Kutayikira kwamkati nthawi zambiri kumasonyeza kuwonongeka kwa mpando kapena mpira

• Sungani zida zofunika kwambiri pa ma valve ofunikira kwambiri

Kusanthula Mtengo wa Moyo: Kupitirira Mtengo Woyamba

Kuchokera pakuwona kugula, kusankha ma valve a mpira kuyenera kutengeraMtengo Wonse wa Umwini (TCO)osati mtengo wa chinthu chimodzi chokha:

1. Mtengo Wogulira:Valavu, choyeretsera, zowonjezera

2. Mtengo Woyika:Kukhudzidwa ndi kukula, kulemera, ndi zovuta

3. Mtengo Wogwirira Ntchito:Kutaya mphamvu, kugwiritsa ntchito mphamvu, kukonza

4. Mtengo Woopsa:Nthawi yopuma, zochitika zachitetezo, ndi zotsatirapo za kulephera

Kutsiliza: Kugwirizanitsa Zofunikira za Uinjiniya ndi Strategic Sourcing

Ma valve a mpirazingawoneke zosavuta, koma magwiridwe antchito awo ndi chifukwa cha uinjiniya wosamala komanso kusankha bwino. Mainjiniya ayenera kufotokoza momveka bwino momwe ntchito ikuyendera, pomwe ogula ayenera kuwunika mtengo wake wa nthawi yayitali pogwiritsa ntchito kusanthula mtengo wa moyo wonse.

Pamene machitidwe a mafakitale akusintha,ma valve a mpira anzeru komanso ogwiritsidwa ntchito ndi masensazikukhala zofunika kwambiri pakukonza zinthu moganizira zomwe zikuchitika komanso kuphatikizana kwa digito.

Mwa kuphatikiza kumvetsetsa bwino momwe valavu ya mpira imagwirira ntchito ndi njira zopezera ndalama, mabungwe amatha kupeza ntchito zotetezeka, kudalirika bwino, komanso phindu lalikulu pa ndalama zomwe zayikidwa.

Malangizo Ena:

Vavu Yoyandama ya Mpira

Valavu ya Mpira vs. Valavu ya Chipata

Valavu ya Mpira vs. Valavu ya Gulugufe

Mtundu wapamwamba khumi wa ma valve aku China