Cheki vharuvhu (Check valve) ivharuvhu inovhura nekuvhara chikamu idhisiki revharuvhu, iro rinoshanda nehuremu hwaro uye kumanikidza kwepakati kudzivirira kuyerera kwepakati.Ivharuvhu yeotomatiki, inozivikanwawo secheki vharafu, imwe-nzira vharafu, vharafu yekudzoka kana yega yega.Iyo disc yekufamba modhi yakakamurwa kuita yekusimudza mhando uye swing mhando.Iyo yekusimudza cheki vharafu yakafanana muchimiro kune globe vharafu, kunze kwekuti inoshaya hunde yevharuvhu yekutyaira disc.Iyo yepakati inoyerera ichibva kune inopinza chiteshi (yezasi side) uye inoyerera ichibuda kubva pachiteshi chekubuditsa (chepamusoro).Kana iyo inlet pressure yakakura kudarika chiyero che disc uremu uye kuyerera kwayo kuramba, vharuvhu inovhurwa.Sezvineiwo, vharafu inovharwa kana iyo yepakati ichiyerera kumashure.Iyo swing cheki valve ine oblique disc inogona kutenderera yakatenderedza axis, uye iyo inoshanda nheyo yakafanana neyekusimudza cheki cheki.Ivhavhavha yekuongorora inowanzoshandiswa sevhavha yepasi yemudziyo wekupomba kudzivirira kuyerera kwemvura.Iko kusanganiswa kwevhavhavha yekutarisa uye globe valve inogona kutamba basa rekuchengetedza rega.Cheki mavharuvhu ndeechikamu cheotomatiki mavharuvhu, uye anonyanya kushandiswa pamapaipi ane-nzira imwe kuyerera kwepakati, uye anongobvumira svikiro kuti riyerere munzira imwe kudzivirira tsaona.
Cheki mavharuvhu anoshandiswawo pamitsetse inopa anobatsira masisitimu uko kudzvanywa kunogona kukwira pamusoro pekumanikidza kwehurongwa.Cheki mavharuvhu anogona kunyanya kukamurwa kuita swing cheki mavharuvhu (anotenderera zvinoenderana nepakati pegiravhiti) uye nekusimudza cheki mavharuvhu (achifamba achitevedza axis).
Basa revhavha yecheki ndeyekungobvumira svikiro kuti riyerere mune imwe nzira uye kudzivirira kuyerera kune rumwe rutivi.Kazhinji rudzi urwu rwevharuvhu runoshanda rwoga.Pasi pechiito chekumanikidza kwemvura kuyerera kune imwe nzira, dhisiki yevhavha inovhura;apo mvura inoyerera ichienda kune rumwe rutivi, chigaro chevharuvhu chinoshandiswa nemhepo yemvura uye self-weight yevhavha disc kuti ibvise kuyerera.
Tarisa mavharuvhu anosanganisira swing cheki mavharuvhu uye simudza cheki mavharuvhu.Iyo swing cheki vharuvhu ine hinge mechanism, uye dhisiki rakafanana negonhi rakasununguka rinosendamira pane yakarerekera chigaro chepamusoro.Kuti ive nechokwadi chekuti chivharo chevhavha chinokwanisa kusvika panzvimbo yakakodzera yechigaro chepamusoro nguva dzose, chivharo chevhavha chinogadzirwa mu hinge mechanism, kuitira kuti valve yevhavha ive nenzvimbo yakakwana yekusvetukira, uye inoita kuti vharafu inyatsobatana uye inosangana nayo. chigaro chevharuvhu.Iyo disc inogona kugadzirwa zvachose nesimbi, kana inogona kuvezwa nematehwe, rabha, kana chifukidzo chekugadzira pasimbi, zvichienderana nezvinodiwa zvekushanda.Kana iyo swing cheki vharafu yakavhurika zvakazara, iyo fluid inomanikidza inenge isina kuvharika, saka kudonha kudonha kuburikidza nevharuvhu kudiki.Iyo dhisiki yevhavha yekusimudza yevhavha inowanikwa pachisimbiso chechigaro chevhavha pamutumbi wevhavha.Kunze kwekuti dhisiki yevhavha inogona kusimuka uye ichidonha zvakasununguka, iyo yakasara yevhavha yakafanana nevhavha yepasi.Iyo yemvura inomanikidza inoita kuti dhizaini yevhavha isimudze kubva pachisimbiso chechigaro chevhavha, uye kuyerera kwepakati kunokonzera kuti valve disc idzokere kuchigaro chevhavha uye icheke kuyerera.Zvinoenderana nemamiriro ekushandiswa, dhisiki inogona kuve yeese-simbi chimiro, kana muchimiro cherabha pad kana rubber ring yakaiswa pane disc frame.Kungofanana nevhavha yekumisa, kuyerera kwemvura kuburikidza nevhavha yekuongorora yekusimudzira zvakare yakamanikana, saka kudonha kwemhepo kuburikidza nevhavhavhavha yekusimudzira yakakura kudarika iyo yevhavha yekuongorora ye swing, uye chiyero chekuyerera kwevhavha yekuongorora inopera.rare.
Kurongeka kweCheck Valves
Zvinoenderana nechimiro, cheki vharafu inogona kukamurwa kuita yekusimudza cheki vharafu, swing cheki vharafu uye butterfly cheki vharafu.Mafomu ekubatanidza aya mavharuvhu ekutarisa anogona kukamurwa kuita mhando ina: threaded connection, flange connection, welding connection uye wafer connection.
Zvinoenderana nenyaya yacho, iyo cheki vharafu inogona kukamurwa kuita cast iron check valve, brass check valve, Stainless steel check valve, carbon steel check valve uye forged steel check valve.
Zvinoenderana nebasa, cheki chevhavha inogona kukamurwa kuita DRVZ silent check valve, DRVG silent check valve, NRVR silent check valve, SFCV rubber disc check valve uye DDCV double disc check valve.
Nguva yekutumira: Aug-07-2023