N’chifukwa chiyani ma valve “amafa ali aang’ono?” Madzi amavumbula chinsinsi cha moyo wawo waufupi!

Mu 'nkhalango yachitsulo' ya mapaipi a mafakitale,mavavukhalani ngati ogwira ntchito m'madzi opanda phokoso, kuwongolera kutuluka kwamadzimadzi. Komabe, kaŵirikaŵiri ‘amafa ali achichepere,’ zomwe ziridi zomvetsa chisoni. Ngakhale kukhala gawo la gulu lomwelo, chifukwa chiyani enamavavukusiya ntchito msanga pamene ena akupitiriza kutumikira? Lero, tiyeni titsatire katswiri wowongolera madzimadzi a Waters kuti tiwulule chowonadi cha moyo waufupi wamavavu.

Zifukwa zazikulu zitatu zavalavu"moyo waufupi"
Kupsinjika mpaka Imfa: Kulimbana Kwapawiri Kwa Kupanikizika Kwakukulu ndi Kuwonongeka Kwakukulu Kwambiri: Pamene kupanikizika kwadongosolo kumadutsa malire a mapangidwe a valve,valavuthupi ndi zisindikizo zimakanikizidwa kwambiri, zomwe zimapangitsa kuti mapangidwe apangidwe komanso kulephera kusindikiza. Kuwonongeka kwa nyundo yamadzi nthawi yomweyo kumakhala ngati kuvulala kwamkati, komwe kumatha kupangitsa kuti valavu isagwiritsidwe ntchito nthawi yomweyo. Kuwononga Kuwononga: M'malo ovuta kwambiri monga madera amadzi am'madzi am'madzi am'madzi am'madzi, zowulutsa zowononga zimakhala ngati kanjedza zofewetsa mafupa, ndikuwononga mwakachetechete makulidwe a khoma la valavu (kuchuluka kwa dzimbiri kupitirira 0.5 mm / chaka), kufooketsa mphamvu zake, ndikuyambitsa kuphulika ndi kutayikira. Madzi amamvetsetsa kuti zida ndizofunikira, ndipo mavavu ake apadera a aloyi (monga Hastelloy ndi duplex steel) ali ngati' zishango za mabelu agolide, 'kumawonjezera mphamvu zawo komanso kukana dzimbiri. Kuvala Kwambiri: Kudula Mopanda Nkhanza ndi Kukokoloka Kwambiri Kwambiri kwa Madzi: Tinthu tating'ono (monga mineral slurry ndi phulusa) kapena madzi othamanga kwambiri (monga nthunzi ndi madzi a cavitation) mosalekeza amasakaza pamwamba ndi chipinda cha valve, kuchita ngati mipeni yosawerengeka. M'kupita kwa nthawi, izi zimapanga mikwingwirima yozama pamtunda wosindikiza, zomwe zimapangitsa kuti chisindikizo chilephereke. Malo osindikizira a aloyi olimba kwambiri amadzi (monga tungsten carbide ndi STL) ndi mapangidwe okhathamira oyenda bwino amakhala ngati 'malaya achitsulo' motsutsana ndi 'mabala masauzande' awa.

Asphyxiation blockage: kutsekeka koopsa kwa zonyansa ndi sikelo

Kulowetsedwa kwa Zonyansa: Weld slag, dzimbiri, ndi zinthu zakunja zimatha kulowa mupaipi ndikukakamira pakati pa mpando wa valve ndi pakati. Izi zingapangitse valavu kulephera kutseka kapena kutsegula bwino, ndipo pazovuta kwambiri, kuwononga malo osindikizira olondola. Kuwala kwapakatikati ndi makulitsidwe: Nthawi zina (monga madzi ozizira kapena slurry), sing'anga imatha kuyera kapena kukula mkati mwavalavu, kutseka bwino ma valve olowa, zomwe zimapangitsa kuti pakhale ulesi kapena kutsekeka kwathunthu. Madzi 'mapangidwe oletsa kutsekeka, monga ma valve othamanga kwambiri a V-mtundu wa V-mtundu ndi ma scraper structures, amagwira ntchito ngati zida zoyeretsera izi' zamagazi.'

"Zolakwa" za wogwiritsa ntchito zidathandizira moyo wa valve

Malinga ndiTWS Valavu yosindikizira madzi, moyo wautali wa valve si mwangozi, koma uinjiniya wamakina kuchokera ku mapangidwe, kusankha zinthu, kupanga ndi kugwiritsa ntchito:

 

Zofananira Zolondola, Zogwirizana ndi Zomwe Zili Zachindunji: Chitani kusanthula mwatsatanetsatane momwe magwiridwe antchito (kupanikizika, kutentha, sing'anga, tinthu tating'onoting'ono, ndi ma frequency opangira) kuti musankhe mtundu woyenera wa valavu (valve pachipata, valavu yapadziko lonse lapansi, valavu ya mpira,valavu ya butterfly) ndi zinthu. Zigawo Zazikulu, Kuyesetsa Kukwaniritsa Ungwiro: Zosindikizira ziwirizi zimapangidwa kuchokera ku alloy yolimba yosamva kuvala komanso yolimbana ndi dzimbiri; tsinde la valavu limapangidwa kuchokera kuzinthu zolimba kwambiri zolimbana ndi dzimbiri ndi chithandizo chapamwamba chapamwamba; zigawo zofunika kwambiri zokhala ndi kukakamiza zimatsimikiziridwa mwamphamvu kudzera mu finite element analysis (FEA). Luso, Kuwongolera Kwabwino Kwambiri: Kukonzekera kolondola kumatsimikizira kulekerera koyenera, ndipo kuyesa kosamalitsa kosawononga (RT / UT / PT) kumathetsa zolakwika zamkati; njira iliyonse ndi kudzipereka ku kudalirika. Kusankha Mwanzeru, Kuyembekezera Tsogolo: Perekani chitsogozo chosankha akatswiri ndi njira zothetsera makonda kuti ma valve 'amabadwa pa nthawi yoyenera, pamalo oyenera.'

Chitani bwino "mtima wamafakitale" uliwonse

Kulephera msanga kwa mavavu ndi chizindikiro chochenjeza cha zovuta zomwe zingachitike pamakina ndipo zimayimira kutayika kwazinthu ndi magwiridwe antchito. Posankha Madzi, mukusankha ukatswiri komanso kudzipereka kuti mulowetse makina anu amadzimadzi ndi mphamvu zokhalitsa. Sitimangopereka mankhwala okhazikika a valve komanso timalimbikitsa mfundo za kayendetsedwe ka sayansi ndi ntchito zokhazikika. Pokhapokha pomvetsetsa, kulemekeza, ndi kuchitira zabwino 'oyang'anira mafakitale'wa omwe ali chete angagwire ntchito mokhazikika, moyenera, komanso kwanthawi yayitali m'maudindo awo, pamodzi ndikuwonetsetsa kuti njira zama mafakitale zikuyenda bwino!