l Valavu ya singano ndi mtundu wa valavu yosinthika, yomwe imagwiritsidwa ntchito kwambiri, monga kudula mtunda wa kudula lamoto, ndi mfundo yosinthira kutentha kwa lawi ndi valavu ya singano. Vavu ya singano ndi gawo lofunikira pakuyezera mapaipi a zida, zomwe zimaphatikizapo valavu yapadziko lonse lapansi ndi valavu ya mpira. Ntchito yake ndikutsegula kapena kudula mapaipi. Spool ya singano ya singano ndi chulucho chakuthwa kwambiri, ngati singano yomwe imayikidwa pampando, motero dzina lake.
l Valavu yoyimitsa, yomwe imadziwikanso kuti valve yotseka, ndi valavu yosindikizira yokakamiza, kotero pamene valavu yatsekedwa, kupanikizika kuyenera kuikidwa pa diski kuti zisawonongeke kutsekedwa kwa malo osindikizira. Pamene sing'anga imalowa mu valavu kuchokera pansi pa diski ya valve, kukana komwe kumayenera kugonjetsedwa ndi mphamvu yogwiritsira ntchito ndiko kukangana pakati pa tsinde ndi kunyamula ndi kukankhira kopangidwa ndi kukakamizidwa kwa sing'anga. Mphamvu yotseka valavu ndi yaikulu kuposa yotsegula valavu, kotero kuti m'mimba mwake tsinde iyenera kukhala yaikulu, mwinamwake tsinde lidzapindika.
l Kusamala kwa kukhazikitsa
1. Malo oyika, kutalika ndi njira yolowera ndi kutulukira ziyenera kukwaniritsa zofunikira za mapangidwe. Mayendedwe apakati amayenda molingana ndi momwe muvi wamadziwira pa thupi la valve, ndipo kulumikizana kudzakhala kolimba komanso kolimba.
2. Valavu iyenera kuyang'aniridwa mwachiwonekere musanayike, ndipo mbale ya dzina la valve iyenera kutsata zomwe zilipo panopa dziko lonse "general valve marks" GB 12220. Kwa valavu yokhala ndi mphamvu yogwira ntchito yoposa 1.0 MPa ndi ntchito yodulidwa pa chitoliro chachikulu, kuyesa mphamvu ndi zolimba ziyenera kuchitidwa musanayike, ndipo valavu ingagwiritsidwe ntchito pokhapokha itayenerera. Pakuyesa mphamvu, kupanikizika kwa mayeso kudzakhala nthawi 1.5 ya kukakamiza mwadzina, nthawiyo sikhala yochepera 5min, ndipo chipolopolo cha valve ndi kulongedza zidzakhala zoyenerera ngati palibe kutayikira. Pakuyesa kolimba, kukakamiza kwa mayeso ndi nthawi 1.1 ya kukakamiza mwadzina, ndipo nthawi yoyeserera imakwaniritsa zofunikira za GB 50243.
Nthawi yotumiza: Sep-15-2021