Zvakawanda sei zvaunoziva nezve cheki mavharuvhu?

1. Chii chinonzi cheki valve? 7. Ndeipi nheyo yekushanda?

　　Tarisa vharafuishoko rakanyorwa, uye rinowanzodaidzwa kuti cheki vharafu, cheki vharafu, cheki vharafu kana cheki vharafu mubasa. Pasinei nokuti inonzi sei, maererano nechirevo chaicho, tinogona kutonga zvishoma basa revhavhavhavhavha yekudzivirira kuti mvura irege kuyerera ichidzoka muhurongwa uye kuve nechokwadi chokuti mvura inogona kungofamba nenzira yakagadziriswa. Kuvhura uye kuvhara kwevhavhavha yecheki kunopedzwa nesimba rekuyerera kwemvura, saka cheki yevhavha rudzi rweotomatiki valve. Nekuda kwehunhu hwayo, chiyero chekushandisa cheki mavharuvhu muhupenyu chakakura kwazvo.

Piri. Nhanganyaya yekugadzika kwecheki mavharuvhu

Yedu yakajairika uye inowanzoshandiswa cheki mavharuvhu kazhinji ane marudzi matatu: kusimudza mhando, rotary mhando uye disc mhando. Izvi zvinotevera zvakasiyana zvinounza hunhu hwemavharuvhu matatu akasiyana ekutarisa:

1. Nhanganyaya yekusimudza cheki valve

Lift check valve inokamurwa kuva marudzi maviri: yakatwasuka uye yakatwasuka maererano nenzira yekuisa mudziyo. Kunyangwe yakachinjika kana yakatwasuka, inofamba ichitevedza axis kuti ipedze kuvhura nekuvhara.

A. Kune mamwe mapurojekiti anoda huinjiniya hwemhando yepamusoro, tinowanzo shandisa mavharuvhu ekusimudza-mhando akanyarara. Kazhinji, tinoisa cheki valve panzvimbo yekubuda kwepombi;

B. Kazhinji, kunyarara cheki mavharuvhu anowanzo shandiswa mumvura yekupa uye drainage system yezvivakwa zvakakwirira. Kuti udzivise kuvharwa, iyo silence cheki vharafu haiwanzo shandiswa pakubuda kwetsvina;

C. Kubuda kwetsvina kunobatwa nevhavha yakatsaurirwa yakatwasuka. Inowanzoshandiswa mukutsigira nzvimbo dzemunharaunda dzakadai semvura uye pombi dzesuweji.

2. Rotary check valves yakakamurwa kuva marudzi matatu: single valve, double valve uye multi valve maererano nenzira dzakasiyana dzekuongorora. Nheyo yavo yekushandisa ndeyekupedzisa kutenderera kuburikidza nepakati payo uye wozopedzisa kuvhura nekuvhara.

A. Kushandiswa kwe rotary check valves kwakagadziriswa, uye kunowanzoshandiswa mumataundi emvura emvura, asi haina kukodzera mapaipi emvura ane tsvina yakawanda;

B. Pakati pemavharuvhu akasiyana-siyana e rotary check valve, iyo imwe-leaf check valve inoshandiswa zvakanyanya. Izvo hazvidi yakakwirira yemhando yemvura uye inowanzoshandiswa mukupa mvura uye kudhiraivha, peturu, makemikari, metallurgical uye mamwe mabasa. Kunyanya mune dzimwe nzvimbo dzakamanikidzika, iyo imwe-shizha cheki chevhavha yakashandiswa zvakanyanya;

3, kuiswa kwe disc-type cheki valve

A. Disc-mhando cheki mavharuvhu kazhinji akatwasuka-kuburikidza. Butterfly-type double valve check valves inoshandiswa zvakanyanya mumvura uye mvura yezvivakwa zvepamusoro-soro, uye mamwe mvura anoparadza kana anoshandiswa mune dzimwe nzira dzetsvina;