Mavavu sagwiritsidwa ntchito kwambiri m'mafakitale osiyanasiyana, komanso amagwiritsidwa ntchito m'malo osiyanasiyana.Ma valve ena m'malo ogwirira ntchito ovuta amakhala ndi mavuto.Popeza valavu ndi chida chofunikira, makamaka kwa ma valve akuluakulu, zimakhala zovuta kukonza kapena kusintha pakangochitika vuto.Choncho, ndikofunika kwambiri kukonza ndi kukonza tsiku ndi tsiku.Tiyeni tiwone pang'ono pang'ono za kukonza ma valve.
A. Kusungirako ndi kuyang'ana tsiku ndi tsiku kwa ma valve
1. Vavu iyenera kusungidwa m'chipinda chowuma ndi mpweya wabwino, ndipo mapeto onse a ndimeyi ayenera kutsekedwa.
2. Mavavu omwe akhala akusungidwa kwa nthawi yayitali ayenera kuyang'anitsitsa nthawi zonse, dothi lichotsedwe, ndipo mafuta oletsa dzimbiri ayenera kugwiritsidwa ntchito pokonza.
3. Pambuyo pa kukhazikitsa, kufufuza nthawi zonse kuyenera kuchitidwa.Zinthu zazikulu zowunikira:
(1) Kuvala kwa malo osindikizira.
(2) Kuvala kwa ulusi wa trapezoidal wa tsinde ndi mtedza wa tsinde.
(3) Kaya kulongedza kwachikale komanso kosavomerezeka, ngati kwawonongeka, ziyenera kusinthidwa panthawi yake.
(4) Valavu ikakonzedwa ndikusonkhanitsidwa, kuyesa kosindikiza kumayenera kuchitidwa.
B. Ntchito yosamalira pa nthawi ya jekeseni wa mafuta a valve
Katswiri wokonza valavu isanayambe komanso itatha kuwotcherera kumagwira ntchito yofunika kwambiri pakupanga ndi kugwira ntchito kwa valve.Kukonzekera koyenera, mwadongosolo komanso kothandiza kudzateteza valavu, kupanga valavu kugwira ntchito moyenera ndikutalikitsa moyo wautumiki wa valve.moyo.Ntchito yokonza ma valve ingaoneke ngati yosavuta, koma si choncho.Nthawi zambiri pamakhala mbali zina za ntchito zomwe zimanyalanyazidwa.
1. Pobaya mafuta mu valavu, kuchuluka kwa jekeseni wamafuta nthawi zambiri kumanyalanyazidwa.Pambuyo pa mfuti ya jekeseni wa mafuta, wogwira ntchitoyo amasankha valavu ndi njira yolumikizira jekeseni wamafuta, ndiyeno amachita ntchito yojambulira mafuta.Pali zinthu ziwiri: kumbali imodzi, kuchuluka kwa jekeseni wamafuta ndi kochepa ndipo jekeseni wamafuta ndi wosakwanira, ndipo malo osindikizira amavala mofulumira chifukwa cha kusowa kwa mafuta.Kumbali inayi, jekeseni wochuluka wamafuta umabweretsa kutaya.Chifukwa chake ndi chakuti palibe kuwerengera kolondola kwa mphamvu yosindikiza ya valve yosiyana malinga ndi gulu la mtundu wa valve.Mphamvu yosindikiza imatha kuwerengedwa molingana ndi kukula kwa valavu ndi mtundu, ndiyeno mafuta okwanira amatha kubayidwa.
2. Vavu ikapaka mafuta, vuto la kupanikizika nthawi zambiri limanyalanyazidwa.Pa ntchito ya jekeseni mafuta, kuthamanga kwa jekeseni wa mafuta kumasintha nthawi zonse ndi nsonga ndi zigwa.Kupsyinjika ndikotsika kwambiri, chisindikizo chimatuluka kapena kulephera kwamphamvu ndikokwera kwambiri, doko la jekeseni wamafuta ndi lotsekedwa, mafuta osindikizira amkati amawumitsidwa, kapena mphete yosindikizira imatsekedwa ndi mpira wa valve ndi mbale ya valve.Nthawi zambiri, mphamvu ya jakisoni wa girisi ikatsika kwambiri, mafuta omwe amabayidwa nthawi zambiri amalowa pansi pa valve, yomwe nthawi zambiri imapezeka m'mavavu ang'onoang'ono.Ngati mphamvu ya jakisoni wa girisi ndiyokwera kwambiri, mbali imodzi, yang'anani pobowolo ya girisi, ndikusintha ngati bowo latsekeka..Kuphatikiza apo, mtundu wosindikiza ndi zinthu zosindikizira zimakhudzanso kuthamanga kwa jekeseni wamafuta.Mitundu yosiyanasiyana yosindikiza imakhala ndi mphamvu zosiyanasiyana za jakisoni wamafuta.Nthawi zambiri, mphamvu ya jekeseni wamafuta a zisindikizo zolimba ndi yayikulu kuposa ya zisindikizo zofewa.
Kuchita ntchito yomwe ili pamwambayi kumakhulupirira kuti n'kothandiza kwambiri kuwonjezera moyo wautumiki wa valve, ndipo panthawi imodzimodziyo, kungathenso kuchepetsa mavuto ambiri osafunikira.
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Nthawi yotumiza: Jul-20-2022