Ndeapi mapoka echeki mavharuvhu?

Semudziyo wakakosha kudzivirira kudzoka kwepakati,cheki mavharuvhuanoshandiswa zvakanyanya mumapaipi masisitimu. Zvinoenderana nezvimiro zvakasiyana uye misimboti yekushanda, cheki mavharuvhu anonyanya kukamurwa muzvikamu zvinotevera:

1. Swing cheki vharafu

Rotary cheki valve inovhura uye inovhara nekutenderedza dhisiki yevharuvhu ichitenderedza axis yakagadziriswa. Kana iyo yepakati ichiyerera kumberi, dhisiki yevharuvhu inosundirwa yakavhurika; Kana uchidzokera kumashure, dhisiki yevhavha inovhara pasi pehuremu hwayo uye simba rekuita repakati. Zvakanakira kuderera kwekuyerera kwekudzivirira, kuvhura nekukurumidza nekuvhara, kwakakodzera kune yakakura-dhayamita, yakaderera kuyerera kweyero mamiriro akadai semapombi epombi kana horizontal pipelines. Nekudaro, nyundo yemvura inogona kuitika panguva yekumhanya-mhanya kuyerera, uye mudziyo webuffer unodiwa.

2. Simudza cheki valve

Ivhavha disc yekusimudzacheki vharafuinofamba ichitevedza axis yakatwasuka yemuviri wevharuvhu. Kana ichiyerera ichienda mberi, iyo yepakati pressure inosundira valve disc kumusoro; Paunenge uchidzokera shure, diski yevhavha inowira pasi pechiito chesimba regiravhiti kana kuti chitubu, ichicheka pakati. Iyi mhando yevharuvhu yekutarisa ine yakanaka yekuisa chisimbiso kuita, asi yakanyanya kuyerera kuramba, uye inonyanya kushandiswa mune diki caliber, high-pressure, kana vertically yakaiswa maapplication, senge steam system.

3. Butterfly cheki vharafu

Butterfly cheki vharafu inosanganisa maitiro einotenderera uye butterfly mavharuvhu, ine denderedzwa disc inotenderera ichitenderedza nechepakati axis. Iyo ine compact chimiro uye huremu huremu, inokodzera hombe-diameter uye yakaderera-kudzvanywa mapaipi, uye inowanzoshandiswa mukugovera mvura uye drainage engineering. Asi kuiswa chisimbiso kune zvishoma uye kunoda kugadziriswa nguva dzose.

4. Diaphragm cheki vharafu

Diaphragm cheki mavharuvhu anoshandisa elastic deformation yerabha diaphragms kudzora kuvhura nekuvhara. Kana iyo yepakati ichiyerera ichienda mberi, diaphragm inotambanudzwa yakavhurika; Kana uchidzokera kumashure, diaphragm inotenderera kuti iname chiteshi. Iyi mhando yevhavhavha yekutarisa haina mechanical friction uye hupenyu hurefu hwebasa, asi kutonhora kwayo uye kusagadzikana kwekudzivirira kunogumira, uye inonyanya kushandiswa kuchenesa midhiya kana pasi-pressure systems.

5. Piston cheki valve

Iyo piston cheki valve inovhura uye inovhara kuburikidza nekubatana kwepiston uye chitubu. Dzvinyiriro yepakati inokunda simba remuchirimo kusundira piston kuti ifambe, uye chitubu chinodzoka chovhara kana chichidzokera kumashure. Iyo ine yakanakisa yekuisa chisimbiso kuita uye inokodzera tembiricha yepamusoro uye yakanyanya kudzvanywa nharaunda, senge petrochemical indasitiri, asi chimiro chayo chakaoma uye mutengo wakakwira.

Mamiriro anoshanda emhando dzakasiyana dzecheki mavharuvhuinoda kusarudzwa zvakakwana zvichienderana nehunhu hwepakati, kudzvanywa, kuyerera, uye mamiriro ekuisa kuti ive nechokwadi chekuchengetedza uye kushanda zvakanaka kwehurongwa.