Vavu ya pulagi ndi valavu yozungulira yofanana ndi membala wotseka kapena plunger.Pozungulira madigiri a 90, doko lachitsulo pa pulagi ya valve ndilofanana kapena lolekanitsidwa ndi doko lachitsulo pa thupi la valve, kuti muzindikire kutsegula kapena kutseka kwa valve.
Mawonekedwe a pulagi ya valavu ya pulagi akhoza kukhala cylindrical kapena conical.M'mapulagi a cylindrical valve, ndimezo nthawi zambiri zimakhala zamakona;m'mapulagi a conical valve, ndimezo ndi trapezoidal.Maonekedwewa amapanga mawonekedwe a valavu ya pulagi, koma nthawi yomweyo, amatulutsanso kutaya kwina.Mavavu a pulagi ndi oyenera kutseka ndi kulumikiza media komanso kusokoneza, koma kutengera mtundu wa ntchito komanso kukana kukokoloka kwa malo osindikizira, atha kugwiritsidwanso ntchito kugwedeza.Tembenuzirani pulagi molunjika kuti polowera kuphatikizire chitoliro kuti chitseguke, ndikutembenuzira pulagiyo madigiri 90 mopingana ndi wotchiyo kuti polowera ku chitoliro kutsekeke.
Mitundu ya mavavu a pulagi imagawidwa makamaka m'magulu awa:
1. Vavu yamapulagi yolimba
Mavavu a pulagi amtundu wothina nthawi zambiri amagwiritsidwa ntchito pamapaipi otsika molunjika.Ntchito yosindikiza imadalira kwathunthu kugwirizana pakati pa pulagi ndi thupi la pulagi.Kuponderezedwa kwa malo osindikizira kumatheka mwa kumangirira mtedza wapansi.Nthawi zambiri amagwiritsidwa ntchito PN≤0.6Mpa.
2. Kuyika valavu ya pulagi
Packed plug valve ndi kukwaniritsa pulagi ndi pulagi kusindikiza thupi mwa kukanikiza kulongedza.Chifukwa cha kulongedza katundu, ntchito yosindikiza imakhala yabwinoko.Nthawi zambiri valavu yamtunduwu imakhala ndi chithokomiro chonyamula, ndipo pulagi sifunikira kutuluka kuchokera ku thupi la valavu, motero kuchepetsa njira yotayira ya sing'anga yogwira ntchito.Vavu yamtunduwu imagwiritsidwa ntchito kwambiri pakukakamiza kwa PN≤1Mpa.
3. Vavu yodzisindikiza yokha
Valavu yodzisindikizira yokha imazindikira chisindikizo chapakati pakati pa pulagi ndi thupi la pulagi kupyolera mu kukakamiza kwa sing'anga yokha.Mapeto ang'onoang'ono a pulagi amatuluka m'mwamba kuchokera m'thupi, ndipo sing'angayo imalowa kumapeto kwakukulu kwa pulagi kupyolera mubowo laling'ono pa malo olowera, ndipo pulagi imakanizidwa mmwamba.Kapangidwe kameneka kamakonda kugwiritsidwa ntchito pa air media.
4. Vavu ya pulagi yosindikizidwa ndi mafuta
M'zaka zaposachedwa, ma valve ogwiritsira ntchito mapulagi akhala akukulitsidwa mosalekeza, ndipo mavavu a pulagi osindikizidwa ndi mafuta okakamiza awonekera.Chifukwa cha kukakamizidwa kokakamiza, filimu yamafuta imapangidwa pakati pa kusindikiza pamwamba pa pulagi ndi thupi la pulagi.Mwa njira iyi, ntchito yosindikiza imakhala bwino, kutsegula ndi kutseka ndikupulumutsa ntchito, ndipo malo osindikizira amatetezedwa kuti asawonongeke.Nthawi zina, chifukwa cha zida zosiyanasiyana komanso kusintha kwa magawo osiyanasiyana, kukulitsa kosiyanasiyana kudzachitika mosapeweka, zomwe zingayambitse kupindika kwina.Tikumbukenso kuti pamene zipata ziwiri ndi ufulu kukula ndi mgwirizano, kasupe ayeneranso kukula ndi mgwirizano ndi izo.
Nthawi yotumiza: Dec-22-2022