1.Kumene valavu ya butterfly imagwira ntchito
Mavavu a butterflyndi oyenera kuyendetsa kayendedwe.Popeza kuthamanga kwa vavu ya gulugufe m'paipi kumakhala kwakukulu, kuwirikiza katatu kuposa kwa valve ya pachipata.Choncho, posankha valavu ya gulugufe, chikoka cha kutayika kwa payipi ya payipi chiyenera kuganiziridwa bwino, ndipo mphamvu ya gulugufe kuti ipirire kupanikizika kwa sing'anga ya payipi iyeneranso kuganiziridwa pamene yatsekedwa.kugonana.Komanso, m'pofunika kuganizira kuchepetsa kutentha kwa ntchito kuti zotanuka valavu mpando chuma akhoza kupirira pa kutentha kwambiri.
Kutalika kwa mapangidwe ndi kutalika kwa valavu ya butterfly ndi yaying'ono, kutsegulira ndi kutseka kumathamanga, ndipo kumakhala ndi makhalidwe abwino olamulira madzimadzi.Mfundo yokhazikika ya valavu ya gulugufe ndiyo yabwino kwambiri popanga mavavu akuluakulu.Pamene valavu ya butterfly ikufunika kuti iwononge kutuluka, chinthu chofunika kwambiri ndikusankha molondola kukula ndi mtundu wa valavu ya butterfly kuti igwire bwino ntchito.
Nthawi zambiri, pakuwongolera, kuwongolera ndi matope, kutalika kwake kumafunika kukhala kwaufupi ndipo liwiro lotsegula ndi kutseka limakhala lothamanga (1/4r).Kutsika kwapakati (kusiyana kwapang'onopang'ono), valavu ya butterfly ndiyofunikira.
Pankhani ya kusintha kwa magawo awiri, ndime yochepetsetsa, phokoso lochepa, cavitation ndi vaporization, pang'onopang'ono kutayikira kumlengalenga, ndi mauthenga a abrasive, ma valve a butterfly angagwiritsidwe ntchito.
Mukamagwiritsa ntchito ma valve agulugufe pansi pamikhalidwe yapadera monga kuwongolera kwamphamvu, zofunikira zosindikiza mwamphamvu, kuvala kwambiri, kutentha pang'ono (cryogenic) ndi zinthu zina zogwirira ntchito, mapangidwe apadera a eccentric kapena eccentricity iwiri yokhala ndi chisindikizo chachitsulo chopangidwa mwapadera ndi chipangizo chosinthira ndikofunikira. valavu.
The pakati mzere butterfly vavu ndi oyenera madzi abwino, zimbudzi, madzi a m'nyanja, madzi amchere, nthunzi, gasi zachilengedwe, chakudya, mankhwala, mafuta ndi zinthu zosiyanasiyana zimene zimafunika kusindikiza wathunthu, ziro mpweya mayeso kutayikira, zofunika moyo mkulu, ndi kutentha ntchito -10 ~ 150 ℃.Acid-base ndi mapaipi ena.
Vavu yagulugufe yotsekedwa yofewa ndiyoyenera kutsegulira ndi kutseka njira ziwiri ndikusintha mpweya wabwino ndi mapaipi ochotsa fumbi.Amagwiritsidwa ntchito kwambiri m'mapaipi a gasi ndi mayendedwe amadzi muzitsulo, mafakitale opepuka, mphamvu yamagetsi, ndi machitidwe a petrochemical.
Waya wachitsulo-to-zitsulo wosindikiza ma valve agulugufe owirikiza kawiri ndi oyenera kutentha m'tawuni, nthunzi, madzi ndi gasi, mafuta, asidi ndi mapaipi a alkali, monga chipangizo chowongolera ndi kutsekereza.
Kuphatikiza pa kugwiritsidwa ntchito ngati valavu yayikulu yolumikizira mpweya (PSA), valavu yachitsulo ndi zitsulo pamwamba patatu eccentric butterfly ingagwiritsidwenso ntchito kwambiri mumafuta, petrochemical, mankhwala, zitsulo, magetsi. mphamvu ndi minda ina.Ndi valavu pachipata, valavu kuyimitsa, etc. Good njira mankhwala.
2.Mfundo yosankhidwa ya valavu ya butterfly
1. Popeza valavu ya gulugufe imakhala ndi kutsika kwakukulu kocheperapo poyerekeza ndi valavu ya pachipata, ndiyoyenera kugwiritsira ntchito mapaipi omwe ali ndi zofunikira zochepa zowonongeka.
2. Popeza valavu ya gulugufe ingagwiritsidwe ntchito kusintha kayendedwe kake, ndiyoyenera kugwiritsidwa ntchito m'mapaipi omwe amafunikira kusintha kwa kayendedwe kake.
3. Chifukwa cha kuchepa kwa kapangidwe ka gulugufe ndi zinthu zosindikizira, sizoyenera kutentha kwambiri komanso kuthamanga kwapaipi.Nthawi zambiri, kutentha ntchito ndi pansi 300 ℃, ndi kuthamanga mwadzina ndi pansi PN40.
4. Popeza kutalika kwa valavu ya butterfly ndi yayifupi ndipo imatha kupangidwa kukhala lalikulu lalikulu, valavu ya butterfly iyenera kugwiritsidwa ntchito panthawi yomwe kutalika kwake kumayenera kukhala kwaufupi kapena valavu yayikulu (monga DN1000). kapena zambiri).
5. Popeza valavu ya butterfly imatha kutsegulidwa kapena kutsekedwa ndi 90 ° yokha, ndi bwino kusankha valve ya butterfly pazochitika zomwe zimafuna kutsegula ndi kutseka mofulumira.
Nthawi yotumiza: Oct-22-2021