Yang'anani mfundo zogwirira ntchito za valve, kusanja ndi kukhazikitsidwa

Momwe ma check valve amagwirira ntchito

Thechekeni valavu imagwiritsidwa ntchito pamapaipi, ndipo ntchito yake yayikulu ndikuletsa kubwereranso kwa sing'anga, kusinthasintha kwapampu ndi mota yake yoyendetsa, komanso kutulutsa sing'anga mumtsuko.

Onani mavavu Itha kugwiritsidwanso ntchito pamizere yopereka machitidwe othandizira pomwe kupanikizika kumatha kukwera pamwamba pa kukakamiza kwadongosolo. Ma valve owunikira angagwiritsidwe ntchito pamapaipi amitundu yosiyanasiyana malinga ndi zida zosiyanasiyana.

Valve yowunikira imayikidwa pa payipi ndipo imakhala imodzi mwazinthu zamadzimadzi za payipi yonse. Kutsegula ndi kutseka kwa diski ya valve kumakhudzidwa ndi kayendedwe kakanthawi kochepa kamene kaliko; nawonso, mawonekedwe otseka a chimbale cha valavu ali Ndi mphamvu pakuyenda kwamadzimadzi.

Onani gulu la valve

1. Chovala chowongolera cha swing

Chimbale cha valavu ya swing check chili mu mawonekedwe a diski ndipo chimazungulira kuzungulira tsinde la mpando wa valve. Chifukwa njira yomwe ili mu valavu imasinthidwa, kukana koyenda kumakhala kochepa kuposa kwa valve yokweza. Ndiwoyenera kutsika kochepa komanso kusintha kosasintha koyenda. Komabe, sikoyenera kutulutsa pulsating, ndipo kusindikiza kwake sikuli bwino ngati kwa mtundu wokweza.

Valavu yoyang'ana swing imagawidwa m'mitundu itatu: mtundu wa lobe umodzi, mtundu wa lobe wapawiri ndi mtundu wamitundu yambiri. Mafomu atatuwa amagawidwa makamaka molingana ndi ma valve awiri.

2. Kwezani valavu yowunika

Valve yoyang'ana momwe ma disc a valve amasunthira pakatikati pakatikati pa thupi la valve. Valve yowunikira imatha kukhazikitsidwa papaipi yopingasa, ndipo mpira ukhoza kugwiritsidwa ntchito pa diski ya valve pa valavu yoyang'ana yaing'ono yothamanga kwambiri. Maonekedwe a valavu ya valve yokweza ndi yofanana ndi ya valavu yapadziko lonse (ikhoza kugwiritsidwa ntchito mofanana ndi valavu ya globe), kotero kuti mphamvu yake yokana madzi ndi yaikulu. Mapangidwe ake ndi ofanana ndi valavu yapadziko lonse lapansi, ndipo thupi la valve ndi disc ndizofanana ndi valavu yapadziko lonse lapansi.

3. Vavu yoyang'ana gulugufe

Vavu yoyang'ana momwe diski imazungulira mozungulira pini pampando. Valve yoyang'ana ma disc ili ndi mawonekedwe osavuta ndipo imatha kukhazikitsidwa papaipi yopingasa, ndipo ntchito yosindikiza ndiyosauka.

4. Valovu yowunikira mapaipi

Valve yomwe disc imayenda pakatikati pa thupi la valve. Vavu yowunika mapaipi ndi valavu yatsopano. Ndi yaying'ono kukula kwake, yopepuka kulemera komanso yabwino pakukonza ukadaulo. Ndi imodzi mwa njira zopangira ma check valve. Komabe, coefficient yamadzimadzi yolimbana ndi madzi ndi yayikulu pang'ono kuposa ya swing check valve.

5. Valavu yowunikira kupanikizika

Valavu yamtunduwu imagwiritsidwa ntchito ngati madzi ophikira chakudya ndi valavu yodulira nthunzi, imakhala ndi ntchito yophatikizika ya valavu yokweza ndi valavu yapadziko lonse kapena valavu.

Kuphatikiza apo, pali ma valavu owunika omwe sali oyenerera kuyika kwapampu, monga valavu ya phazi, mtundu wa masika, mtundu wa Y, ndi zina zambiri.