Chidziwitso Chokhazikika Choyika Mavavu #1

Kuyang'ana musanayambe kukhazikitsa vavu

① Onetsetsani mosamala ngativalavuchitsanzo ndi ndondomeko zimakwaniritsa zofunikira pajambula.
② Yang'anani ngati tsinde la valve ndi diski ya valve imatha kutsegulidwa mosavuta, komanso ngati yamamatira kapena yokhota.
③ Yang'anani ngati valavu yawonongeka komanso ngati ulusi wa valavu ya ulusi uli wolondola komanso wathunthu.
④ Onani ngati kuphatikiza kwa mpando wa valve ndi thupi la valavu kuli kolimba, kugwirizana pakati pa diski ya valve ndi mpando wa valve, chivundikiro cha valve ndi thupi la valve, ndi tsinde la valve ndi disc valve.
⑤ Onani ngati gasket ya valve, kulongedza ndi zomangira (maboti) ndizoyenera pazofunikira za sing'anga yogwirira ntchito.
⑥ Vavu yopumulirapo yachikale kapena yanthawi yayitali iyenera kuthyoledwa, ndipo fumbi, mchenga ndi zinyalala zina ziyenera kutsukidwa ndi madzi.
⑦ Chotsani chivundikiro cha doko, yang'anani digirii yosindikiza, ndipo diski ya valve iyenera kutsekedwa mwamphamvu.

Kuyeza kwa valve

Ma valve otsika, apakati-pakatikati komanso othamanga kwambiri ayenera kuyesedwa kwa mphamvu ndi kulimba, ndipo ma valve achitsulo a alloy nawonso amayenera kuyang'aniridwa ndi chipolopolo chimodzi ndi chimodzi, ndipo zinthuzo ziyenera kuwunikiranso.

1. Kuyesa kwamphamvu kwa valve
Kuyesa kwamphamvu kwa valavu ndikuyesa valavu pamalo otseguka kuti muwone kutuluka kunja kwa valavu.Kwa ma valve omwe ali ndi PN≤32MPa, kupanikizika kwa mayesero ndi 1.5 nthawi zomwe zimapangidwira mwadzina, nthawi yoyesera si yochepera 5min, ndipo palibe kutayikira pa chipolopolo ndi kunyamula gland kuti akhale woyenera.

2. Kulimba kwa valve
Kuyesedwa kumachitika ndi valavu yotsekedwa kwathunthu kuti muwone ngati pali kutayikira pamtunda wosindikiza wa valve.Kuthamanga kwa mayeso, kupatula mavavu agulugufe, ma valve owunika, ma valve apansi, ndi ma throttle valves, ayenera kuchitidwa ndi kuthamanga mwadzina.Pamene mphamvu yogwira ntchito ikugwiritsidwa ntchito, imathanso kuyesedwa ndi 1.25 nthawi yogwira ntchito, ndipo imakhala yoyenerera ngati kusindikiza pamwamba pa diski ya valve sikutha.