Tarisa vharafu inoshanda musimboti, kupatsanura uye kuisa precautions

Cheki valve inoshanda sei

Thecheki vharafu inoshandiswa muhurongwa hwepombi, uye basa rayo guru nderokudzivirira kudzoka shure kwepakati, reverse kutenderera kwepombi uye motokari yayo yekufambisa, uye kubudiswa kwepakati mumudziyo.

Tarisa mavharuvhu inogona zvakare kushandiswa pamitsetse inopa ebetsero masisitimu uko kudzvanywa kunogona kukwira pamusoro peiyo main system pressure. Cheki mavharuvhu anogona kuiswa kune mapaipi eakasiyana midhiya zvinoenderana neakasiyana zvinhu.

Ivhavha yecheki inoiswa papombi uye inova imwe yezvikamu zvemvura zvepombi yakakwana. Iyo yekuvhura uye yekuvhara nzira yevhavha disc inobatwa neinotenderera inoyerera mamiriro ehurongwa mauri; uyezve, maitiro ekuvhara evhavha disc ari Iyo ine mhedzisiro pamvura inoyerera mamiriro.

Check valve classification

1. Swing cheki vharafu

Iyo dhisiki yevhavha yekutarisa inotenderera iri muchimiro che disc uye inotenderera ichitenderedza shaft yechigaro chevhavha chiteshi. Nemhaka yokuti chiteshi chiri muvharuvhu chakagadziridzwa, kuyerera kwekudzivirira kuduku pane iyo yevhavha yekusimudza cheki. Inokodzera kuderera kuyerera kwemazinga uye kusawanzochinja kuyerera. Nekudaro, haina kukodzera kupuruzira kuyerera, uye yekuisa chisimbiso kuita kwayo haina kunaka seyemhando yekusimudza.

Iyo swing cheki vharafu yakakamurwa kuita mhando nhatu: single-lobe mhando, kaviri-lobe mhando uye akawanda-lobe mhando. Aya mafomu matatu anonyanya kukamurwa zvichienderana nedhayamita yevharuvhu.

2. Simudza cheki valve

A cheki vharafu umo vharuvhu disc inotsvedza ichitevedza vertical centerline yemuviri wevharuvhu. Iyo yekusimudza cheki vharafu inogona kuiswa chete pane yakatwasuka pombi, uye bhora rinogona kushandiswa kune revhavha disc pane yakakwirira-kumanikidza diki-diameter cheki vharafu. Chimiro chemuviri wevhavha yevhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhavhashiwe (inogona kushandiswa zvakafanana neglobe valve), saka mvura yayo inopikisa coefficient yakakura. Chimiro chayo chakafanana nevhavha yepasi, uye muviri wevhavha uye disc zvakafanana nevhavha yepasi.

3. Butterfly cheki vharafu

Cheki vharuvhu umo dhisiki inotenderera ichitenderedza pini pachigaro. Iyo disc yekutarisa valve ine chimiro chakareruka uye inogona kuiswa chete pahorizontal pombi, uye yekuisa chisimbiso haina kunaka.

4. Pipeline check valve

Ivhavha umo dhisiki inotsvedza padivi pepakati pemuviri wevharuvhu. Pipeline cheki vharuvhu ivharuvhu itsva. Iyo idiki muhukuru, yakareruka muhuremu uye yakanaka mukugadzira tekinoroji. Ndiyo imwe yenzira dzekusimudzira cheki valve. Nekudaro, iyo fluid resistance coefficient yakakura zvishoma pane iya ye swing check valve.

5. Compression check valve

Iri rudzi rwevharuvhu rinoshandiswa sevhavha yekudyisa mvura uye vharafu yakachekwa-vhavha, ine basa rakabatanidzwa rekusimudza cheki vharafu uye globe valve kana angle valve.

Mukuwedzera, kune mamwe mavharuvhu ekutarisa asina kukodzera kuisirwa pombi yekubuda, senge tsoka yevhavha, chitubu chemhando, Y mhando, nezvimwe.