NORTECHis imwe yevatungamiri veChinaGlobe Valve Mugadziri & Mutengesi.

Ndezvipi zvakanakira uye zvakaipira zveglobe valve?
Zvikamu zvekuvhura nekuvhara zvevharuvhu yakavharwa ndeye plug-yakaita seyakafara petals, uye nzvimbo yekuvharira yakati sandara kana conical, uye inofamba zvakatevedzana nepakati pemutsara wemvura.Iyo yekufamba fomu yetsvimbo ine rudzi rwetsvimbo yekusimudza (iyo hunde yevharuvhu inosimudzwa nekudzikiswa, vhiri reruoko harisimuke), uye kune inosimudza inotenderera tsvimbo yemhando (vhiri reruoko uye tsinga yevharuvhu inotenderera nekusimuka pamwe chete, uye iyo nzungu yakaiswa pamutumbi wevharuvhu).Ivhavha yekumisa inokodzera chete kuvhurika zvakakwana uye kuvharwa zvakakwana, kugadzirisa uye throttling hazvibvumirwi.
Ivhavhavha yekumisa ivharuvhu yekumanikidza yekuvharisa, saka kana vharuvhu yakavharwa, kudzvanywa kunofanirwa kuiswa kune chinoputika kumanikidza chisimbiso chepamusoro kuti chisadonha.Kana iyo yepakati ichipinda muvharuvhu yechitanhatu kubva pasi pevhavha disc, kushorwa kunofanirwa kukurira simba rekushandisa ndiko kukwesha kwesimba revharuvhu uye kurongedza uye kusunda kunoitwa nekumanikidza kwepakati.Simba rekuvhara vharuvhu rakakura kudarika simba rekuvhura vharafu, saka vharafu Iyo dhayamita yetsvimbo inofanira kunge yakakura, kana zvisina kudaro iyo valve stem jacking pipe ichakundikana.Mumakore achangopfuura, kubva pakabuda mavharuvhu ekuzvivharisa, nzira yekuyerera yepakati yevharuvhu yekuvhara yakashanduka kubva pamusoro pevharuvhu ichipinda mugomba revharuvhu.Panguva ino, pasi pekuita kwekumanikidzwa kwepakati, simba rekuvhara valve idiki, asi simba rekuvhura valve rakakura.Iyo dhayamita inogona kuderedzwa zvinoenderana.Panguva imwecheteyo, pasi pechiito chepakati, rudzi urwu rwevhavha rinowedzerawo.vharuvhu yenyika yangu "Sanhua" yakambotaura kuti mafambiro evharuvhu yekumisa anofanira kubva kumusoro kusvika pasi.
Kana vheji yekuvhara yakavhurwa, kana kuvhurwa kwepamusoro kwe disc kuri 25% -30% yezita rezita, kuyerera kwasvika pakakwirira, zvichiratidza kuti valve yasvika panzvimbo yakazaruka zvakakwana.Nokudaro, nzvimbo yakazaruka yakakwana yevhavha yekuvhara inofanira kugadziriswa nekurohwa kwevhavha disc.
Iyo yekumisa vharafu inogona kukamurwa kuita: vharafu yekumisa, yekumusoro tambo stem yekumisa vharafu, yakadzika tambo stem stop valve, yakatwasuka-kuburikidza nekumira vharafu, angle yekumisa vharafu, nzira nhatu yekumisa vharafu, yakananga ikozvino yekumira vharafu, plunger stop valve, tsono Yakaumbwa. globe valve.
Zvakanakira: chimiro chakareruka, kugadzira uye kugadzirisa zviri nyore.
Kushanda sitiroko idiki, uye nguva yekuvhura nekuvhara ipfupi.
Kuita kwakanaka kwekuisa chisimbiso, kukweshana kudiki pakati penzvimbo dzekuisa chisimbiso, uye hupenyu hurefu.
Zvakaipa:
Kuramba kwemvura kwakakura, uye simba rinodiwa pakuvhura nekuvhara rakakura.
Izvo hazvina kukodzera kune midhiya ine zvimedu, yakakwirira viscosity uye nyore kukora.
Kusakwana kwekugadzirisa kushanda
Chengetedzo yekumisikidza uye kugadzirisa: Iyo yekumisa vharafu inoshandiswa nevhiri reruoko uye mubato inogona kuiswa pane chero chinzvimbo chepombi.
Mavhiri emaoko, zvibato uye zvigadziriso zvine simba hazvibvumidzwe kushandiswa pakusimudza.Kuyerera kwepakati kunofanirwa kuenderana negwara remuseve unoratidzwa pamutumbi wevharuvhu.