Amavalvu aboniswe esithombeni awamelani kakhuluama-valve okuhlola okutshekile anesando sokulinganisa isisindoKwenziwe yi-Jinbin Valve, enobukhulu obusukela ku-DN250 kuya ku-DN700. Umzimba wevalvu wenziwe ngensimbi yekhabhoni ye-WCB, ifakwe izinto eziphikisanayo namasilinda e-hydraulic, futhi ilinganiselwe ukucindezela okusebenzayo okungu-PN16, PN20 kanye ne-PN25.

Le valve yokuhlola i-butterfly evala kancane kancane yohlobo lwe-counterweight kanye ne-hydraulic cylinder isebenzisa isakhiwo sokuvala nokuvula esinezigaba ezimbili. Lapho iphampu yamanzi isebenza, umfutho ophakathi ucindezela idiski ye-butterfly ivuleke; i-counterweight iphakamisa kanye nediski ukuze ilinganisele isisindo sepuleti le-butterfly, inciphise kakhulu ukumelana nokugeleza kwamanzi. Okwamanje, i-medium igeleza ku-hydraulic cylinder ukuze igcine umfutho. Ngesikhathi sokuvala iphampu, ngaphansi kwamandla ahlanganisiwe esisindo se-self-weight, ukucindezeleka kwe-counterweight kanye nomfutho wokugeleza obuyela emuva, idiski ye-butterfly ivala ngokushesha u-80% ~ 90% wendlela yokugeleza ukuze ivimbele ukugeleza okuningi emuva. Umfutho osele ongu-10% ~ 20% uvalwa kancane nge-hydraulic cylinder damping. I-valve yenaliti ivumela ukulungiswa okunembile kwesikhathi sokuvala okuhamba kancane, okususa amandla okushaya okugeleza okubuyela emuva isinyathelo ngesinyathelo futhi ngokuyisisekelo kucindezele amagagasi okushaqeka kwe-hammer water hammer.

Izinzuzo Zokusetshenziswa Okuyinhloko

1. Susa isando samanzi futhi uvikele imishini

Ukuvala ngezigaba kwenza buthaka isando samanzi esinomfutho ophezulu esikhiqizwa lapho iphampu ivalwa, kuvimbele ukuqhekeka kwephayiphi kanye nomonakalo wokuguqulwa komgodi wephampu, futhi kunciphisa kakhulu izindleko zokugcinwa kwephayiphi.

2. Ukumelana nokugeleza okuphansi kakhulu kokonga amandla

I-counterweight ilinganisela isisindo sepuleti le-butterfly ukuze likwazi ukugeleza kahle ngaphandle kokuphazamiseka. Ukulahlekelwa yikhanda layo kungaphansi ngo-40% kunokwama-valve okuhlola ukujikijela avamile, okuletha amandla esikhathi eside kanye nokonga izindleko.

3. Ukusebenza kokubopha okuqinile nokuthembekile

Inesakhiwo sokuvala idiski yebhabhathane ephindwe kabili ukuze ivalwe kahle. Umzimba wevalvu umbozwe ngopende we-epoxy ovimbela ukugqwala, ofanelekela izinto eziningi ezihlanganisa amanzi ahlanzekile, indle kanye namanzi ajikelezayo.

4. Ukulungiswa okuguquguqukayo okunokusebenza okubanzi

Uhlelo oluzimele lokudambisa amanzi olusebenzisa i-hydraulic luvumela ukulungiswa kahle kwesikhathi sokuvala okuhamba kancane uma kudingeka. Ludlula ama-valve okuhlola athule agcwele intwasahlobo ngesilinganiso esikhulu seziteshi zokupompa ezinobubanzi obukhulu (i-DN300 nangaphezulu).

Amavalvu okuhlola ajwayelekile avamile avalwa ngokuphelele ngokushesha, okubangela kalula isando samanzi esinamandla. Ukushaya njalo kunciphisa isikhathi senkonzo yamaphampu amanzi, amapayipi kanye nama-flange. Izinhlobo ezifakwe entwasahlobo zisebenza kuphela kumabhomu amancane, azinawo amandla okucindezela kanye nokunciphisa okwanele kobubanzi obukhulu.

Yakhelwe ngokwezifiso izindawo zokufaka amaphampu, le valve ihlanganisa imisebenzi emithathu: ukungabuyisi, ukucindezela isando samanzi kanye nokumelana nokugeleza okuphansi. Ithatha indawo yenhlanganisela yevalvu yokuhlola ejwayelekile kanye nedivayisi ye-buffer, inciphisa ukufakwa kwamaphayiphi. Ezinhlelweni zokugeleza okukhulu njengokuhlinzekwa kwamanzi kamasipala, amanzi ajikelezayo ezitshalweni zamandla, ukuhlinzekwa kwamanzi amakhemikhali kanye nokukhipha amanzi, kanye neziteshi zokupompa indle, ivikela ngokuzinzile ukuphepha kokusebenza kwamaphayiphi, yandisa impilo yesevisi yesethi yemishini iyonke, futhi inikeza ukusebenza kahle kwezindleko ekusebenzeni nasekugcinweni okuphelele.