Tarisa Vagadziri Vagadziri

Cheki mavharuvhu anogona zvakare kushandiswa pamitsetse inopa ebetsero masisitimu uko kudzvanywa kunogona kukwira pamusoro pesimba rehurongwa. Cheki mavharuvhu anogona kunyanya kukamurwa kuita swing cheki mavharuvhu (anotenderera zvinoenderana nepakati pegiravhiti) uye simudza cheki mavharuvhu (achifamba achitevedza axis).
Chinangwa cherudzi urwu rwevharuvhu ndechekubvumira svikiro kuti riyerere munzira imwe chete uye kudzivirira kuyerera kune rimwe divi. Kazhinji rudzi urwu rwevharuvhu runoshanda rwoga. Pasi pechiito chekumanikidza kwemvura kuyerera kune imwe nzira, iyo valve flap inovhura; kana mvura ichiyerera ichienda kune rimwe divi, kudzvanywa kwemvura uye iyo yega-coincident valve flap yevhavha inoputika inobata pachigaro chevharuvhu, nekudaro ichicheka kuyerera.
Kazhinji inoshandiswa negedhi valve kana butterfly valve uye globe valve
Pakati pavo, cheki valve ndeyemhando iyi yevhavha, iyo inosanganisira swing check valve uye lift check valve. Swing cheki mavharuvhu ane hinge mechanism uye dhisiki rakafanana negonhi rinozorora zvakasununguka pachitsiko chechigaro chepamusoro. Kuti uone kuti dhivha yevhavha inogona kusvika panzvimbo yakakodzera yechigaro chevhavha yepamusoro nguva dzose, diski yevhavha inogadzirwa mu hinge mechanism, kuitira kuti diski yevhavha ive nenzvimbo yakakwana yekugezera uye inoita kuti valve disc inyatso uye inobatanidza chigaro chevharuvhu. Iyo disc inogona kugadzirwa zvachose nesimbi, kana yakashongedzwa nematehwe, rabha, kana akafukidzira ekugadzira, zvichienderana nekuita zvinodiwa. Mumamiriro akazaruka akazaruka evharuvhu ye swing cheki, kudzvanywa kwemvura kunenge kusingadzivirirwe, saka kudonhedza kudonhedza pavharuvhu kudiki. Iyo dhisiki yevhavha yekusimudza yevhavha inowanikwa pachisimbiso chechigaro chevhavha pamutumbi wevhavha. Kunze kwekuti dhisiki yevharuvhu inogona kusimuka uye ichidonha zvakasununguka, iyo yakasara yevhavha yakafanana nevharuvhu. Mvura inodzvinyirira inosimudza diski yevhavha kubva pachisimbiso chechigaro chechigaro chevhavha, uye kudzoka kwepakati kunokonzera kuti valve disc idzokere kuchigaro chevhavha uye icheke kuyerera. Zvinoenderana nemamiriro ekushandiswa, dhisiki inogona kunge iri yese-simbi yakagadzirwa, kana inogona kunge iri muchimiro cherabha pad kana rubber ring yakaiswa padhisiki inobata. Kufanana ne globe valve, kuyerera kwemvura kuburikidza nevhavha yekusimudzira yekuongorora zvakare yakamanikana, saka kudonhedzwa kwemhepo kuburikidza nevhavha yekuongorora yekusimudzira yakakura kudarika iyo yevhavha yekuongorora ye swing, uye kuyerera kwevhavha yevhavha yekuongorora inopera isingawanzoitiki.