Mfundo Yogwira Ntchito ndi Makhalidwe a Check Valve

Posankha ndi kugwiritsa ntchito mankhwala opangira ma valve, ndikofunikira kumvetsetsa bwino mfundo ya valve yowunikira kuti musankhe valavu yoyenera ndikuwonjezera moyo wake wautumiki. Mfundo yogwirira ntchito yachekeni valavuili motere: valve yowunikira imalola kuti madzi aziyenda kumalo enaake ndipo amalepheretsa madziwo kubwerera kumbuyo kapena kumbali ina. Ma valve oyenerera ayenera kuyamba kutseka pamene kuthamanga kutsika mu chitoliro ndipo mphamvu ya kinetic yamadzimadzi imachepetsa. Pamene mayendedwe amadzimadzi akubwerera, valve yowunikira iyenera kutsekedwa kwathunthu.

Ma valve owunikira amadziwika ndi kusiyana kwakukulu kwa katundu ndi kutseguka kwakung'ono ndi kutseka pafupipafupi. Akakhala pamalo otsekedwa kapena otseguka, moyo wawo wautumiki umakhala wautali kwambiri, ndipo magawo osuntha safunikira kuti azizungulira. Koma pakakhala chofunikira chosinthira, chiyenera kukhala chosinthika, chomwe chimakhala cholimba kwambiri kuposa kayendetsedwe ka makina wamba. Muzochita zambiri zothandiza, valavu yowunikira imatsimikiziridwa bwino kuti igwiritsidwe ntchito kuti itseke mwamsanga, pamene nthawi yotseka valve yotseka, sing'anga imayenda kumbuyo. Ndi kutsekedwa kwa diski ya valve, sing'angayo imatsika mofulumira kuchokera pamtunda wothamanga kwambiri mpaka ku zero, pamene kupanikizika kumakwera mofulumira, ndiko kuti, chodabwitsa cha "nyundo yamadzi" yomwe ingawononge dongosolo la mapaipi. Vuto la nyundo yamadzi la valavu yowunikira ndilodziwika kwambiri pamapaipi othamanga kwambiri omwe ali ndi mapampu angapo ofanana. Nyundo yamadzi ndi mtundu wa kuthamanga kwa mafunde osakhalitsa pamapaipi okakamiza. Ndi chodabwitsa cha hydraulic shock chifukwa cha kusintha kwa liwiro lamadzimadzi pamapaipi okakamiza. Mfundo yakuthupi ndi chifukwa cha kuphatikiza kwa incompressibility yamadzimadzi, inertia ya kayendedwe ka madzimadzi ndi kusungunuka kwa chitoliro. Pofuna kupewa kuopsa kobisika kwa nyundo yamadzi mu payipi, anthu atengera zida zatsopano popanga ma cheke ma valve kwa zaka zambiri. Ngakhale kutsimikizira kugwira ntchito kwa ma cheki ma valve, kupititsa patsogolo kolimbikitsa kwachitika pakuchepetsa mphamvu ya nyundo yamadzi.