Valovu yowunikira imatanthawuza valavu yomwe imatsegula ndikutseka diski ya valve malinga ndi kutuluka kwa sing'anga yokha kuti iteteze kubwerera kwapakati.Amadziwikanso kuti valavu yoyendera, valavu yanjira imodzi, valavu yobwerera kumbuyo ndi valavu yakumbuyo.Valovu yowunika ndi ya valavu yodziyimira yokha.Ntchito yake yayikulu ndikuletsa kubweza kwa sing'anga, kusinthasintha kwapampu ndi mota yoyendetsa, komanso kutulutsa kwapakati.
Mfundo yogwirira ntchito ya valve cheke
1. Pofuna kupewa kuthamangitsidwa kwapakati, ma valve owunika adzayikidwa pazida, zida ndi mapaipi;
2. Mavavu a chekeni nthawi zambiri amakhala oyenera pa media zoyera, osati pazofalitsa zomwe zimakhala ndi tinthu tating'onoting'ono komanso ma viscosity apamwamba;
3. Nthawi zambiri, valavu yonyamulira yopingasa iyenera kusankhidwa paipi yopingasa yokhala ndi mainchesi a 50mm;
4. Molunjika kupyolera mu kukweza valavu cheke akhoza kuikidwa mu payipi yopingasa;
5. Kwa payipi yolowera pompo, valavu yapansi iyenera kusankhidwa.Nthawi zambiri, valavu yapansi imayikidwa pa payipi yowongoka pamapope olowera, ndipo sing'anga imayenda kuchokera pansi kupita pamwamba;
6. Mtundu wokweza uli ndi ntchito yabwino yosindikiza komanso kukana kwamadzimadzi kwakukulu kuposa mtundu wa swing.Mtundu wopingasa uyenera kuyikidwa papaipi yopingasa ndi mtundu wokhazikika papaipi yowongoka;
7. Kuyika kwa valavu ya swing check valve sikuli kochepa.Itha kukhazikitsidwa pamapaipi opingasa, ofukula kapena opendekera.Ngati aikidwa pa mapaipi ofukula, njira yoyendetsera sing'anga iyenera kukhala kuchokera pansi kupita pamwamba;
8. Chovala choyang'ana cha swing sichiyenera kupangidwa kukhala valavu yaing'ono, koma ikhoza kupangidwa kuti ikhale yogwira ntchito kwambiri.Kuthamanga mwadzina kumatha kufika ku 42MPa, ndipo m'mimba mwake mwadzina imathanso kukhala yayikulu kwambiri, yomwe imatha kufika kupitilira 2000mm.Malingana ndi zipangizo zosiyanasiyana za chipolopolo ndi chisindikizo, chikhoza kugwiritsidwa ntchito pamtundu uliwonse wogwira ntchito komanso kutentha kulikonse.Sing'anga ndi madzi, nthunzi, gasi, sing'anga zikuwononga, mafuta, mankhwala, etc. The ntchito kutentha osiyanasiyana sing'anga ndi - 196-800 ℃;
9. Swing check valve ndi yoyenera kupanikizika kochepa komanso m'mimba mwake yaikulu, ndipo nthawi yoyikapo imakhala yochepa;
10. Kuyika kwa valavu ya butterfly checker sikokwanira.Iwo akhoza kuikidwa pa yopingasa payipi kapena ofukula kapena ankafuna payipi;
Mapangidwe a valavu ya cheki
Pamene valavu yotsegulira yatsegulidwa kwathunthu, kuthamanga kwamadzimadzi kumakhala kosalekeza, kotero kuti kuthamanga kutsika kudzera mu valve kumakhala kochepa.Mpando wa valavu yonyamula valavu uli pamalo osindikizira a thupi la valve.Pokhapokha kuti diski ya valve imatha kuwuka ndikugwa momasuka, valavu yotsalayo ili ngati valve yoyimitsa.Kuthamanga kwamadzimadzi kumakweza diski ya valavu kuchokera kumalo osindikizira a mpando wa valve, ndipo kubwerera kwapakati kumapangitsa kuti diski ya valve igwere ku mpando wa valve ndikudula kutuluka.Malingana ndi momwe ntchito ikugwiritsidwira ntchito, valavu ya valve imatha kukhala yazitsulo zonse kapena zokongoletsedwa ndi rabara kapena mphete ya rabara pa disk frame valve.Mofanana ndi valavu yoyimitsa, njira yamadzimadzi kudzera muzitsulo zoyendetsa galimoto imakhalanso yopapatiza, kotero kuti kuthamanga kutsika kupyolera muzitsulo zoyendetsa galimoto ndi zazikulu kuposa za valve yoyang'ana swing, ndipo kutuluka kwa valve check check valve sikumakhala kochepa.
1, Swing cheke valavu: chimbale cha valavu cheke cheke ali mu mawonekedwe a chimbale ndi amazungulira mozungulira kutsinde wa mpando valavu njira.Chifukwa njira yomwe ili mu valavu imayendetsedwa bwino ndipo kukana kwake kumakhala kochepa kwambiri kusiyana ndi valavu yowunikira, ndi yoyenera nthawi zazikulu zokhala ndi maulendo otsika komanso kusintha kosasintha, koma sikoyenera kutulutsa, ndipo ntchito yosindikiza si yabwino ngati ya valve yowunikira.Swing cheke valavu imagawidwa mumtundu umodzi wa chimbale, mtundu wapawiri wa chimbale ndi mitundu yambiri.Mitundu itatuyi imagawidwa makamaka molingana ndi ma valve awiri, pofuna kuteteza mphamvu ya hydraulic kuti isafooke pamene sing'anga imasiya kuyenda kapena kubwereranso.
2, Kwezani valavu yoyang'ana: valavu yomwe valavu yake imayendetsa pakatikati pakatikati pa thupi la valavu.Valve yowunikira imatha kuyikidwa paipi yopingasa.Pa valavu yoyang'ana yaing'ono yothamanga kwambiri, valavu ya valve imatha kutenga mpira.Maonekedwe a thupi la valve yowunikira ndi yofanana ndi ya valve yoyimitsa (yomwe ingagwiritsidwe ntchito ndi valve yoyimitsa), kotero kuti mphamvu yake yamadzimadzi imakhala yaikulu.Mapangidwe ake ndi ofanana ndi valve yoyimitsa, ndipo thupi la valve ndi disc ndilofanana ndi valve yoyimitsa.Kumtunda kwa diski ya valve ndi kumunsi kwa chivundikiro cha valve kumakonzedwa ndi manja otsogolera.Manja otsogolera ma valve amatha kukwera ndi kugwa momasuka mu manja a kapu ya valve.Pamene sing'anga imayenda kunsi kwa mtsinje, chimbale cha valve chimatsegulidwa ndi kukankhira kwa sing'anga.Sing'anga ikasiya kuyenda, valavu ya valavu imagwera pampando wa valve molunjika kuti iteteze kusuntha kwapakati.Mayendedwe apakati polowera ndi njira yotulutsira mowongoka kudzera pakukweza valavu ndi perpendicular komwe kumalowera mpando wa valve;Mayendedwe a njira yolowera ndi njira yotulutsira yolowera molunjika ndi yofanana ndi njira yapampando wa valavu, ndipo kukana kwake ndikocheperako kuposa valavu yowongoka.
3, valavu yoyang'ana gulugufe: valavu yoyang'ana yomwe chimbale chake chimazungulira pamtengo wa pini pampando wa valve.Vavu yoyang'ana ma disc ili ndi mawonekedwe osavuta ndipo imatha kukhazikitsidwa pamapaipi opingasa osasindikiza bwino.
4, valavu yoyang'anira mapaipi: valavu yomwe chimbale chake chimayenda pamzere wapakati wa valavu.Vavu yowunika mapaipi ndi vavu yatsopano.Lili ndi voliyumu yaying'ono, kulemera kopepuka komanso ukadaulo wabwino wokonza.Ndi imodzi mwa njira zopangira ma check valve.Komabe, coefficient yamadzimadzi yolimbana ndi madzi ndi yayikulupo pang'ono kuposa ya swing check valve.
5, valavu yowunikira: Vavu iyi imagwiritsidwa ntchito ngati madzi ophikira chakudya komanso valavu yotseka.Ili ndi ntchito yokwanira yokweza valavu, valavu yoyimitsa kapena valavu.
Kuphatikiza apo, pali ma valavu ena owunika omwe sali oyenera kuyika potuluka, monga valavu yapansi, mtundu wa masika, mtundu wa Y, ndi zina zambiri.
Nthawi yotumiza: May-09-2022