Kwizikhululo ezinkulu zokumpompa amanzi, iiprojekthi zolondolozo lwamanzi kunye neziseko zobonelelo lwamanzi zikamasipala, ukhuseleko lokugqobhoza kwamanzi ngesando, ukhuseleko lokusilela kwamandla kaxakeka kunye nokuphuculwa kwendawo yemibhobho zezona zinto ziphambili zovavanyo lwabanini-zinkontileka be-EPC kunye namaziko oyilo ngexesha lokukhetha izixhobo zemibhobho ezinobukhulu obukhulu. I-DN1000, PN16 weldedivalvu yebhabhathane ye-hydraulicIfakwe isilinda yeoyile evala kancinci echasene nobunzima kunye nomzimba wevalvu yentsimbi ye-S355J yamkelwe ngokubanzi njengesisombululo esithembekileyo kwiinkqubo zemibhobho yokuphuma kwepompo.

Yenziwe ngentsimbi yesakhiwo esiphantsi kwe-S355J, umzimba wevalvu unika ukuqina okumangalisayo kwempembelelo ephantsi kobushushu kunye nokuwelda okubalaseleyo xa kuthelekiswa nezinye iindlela zentsimbi yesiqhelo. Ingasebenza ngokuzinzileyo phantsi kovavanyo loxinzelelo lwe-PN16 kwiindawo ezinzima kuquka iindawo ezivulekileyo kunye neendawo ezinobushushu obuphantsi. Isakhiwo esihlanganisiweyo sinobulukhuni obuphezulu kunye nokumelana nokuguquguquka kwimizimba yevalvu yendabuko ye-cast flange, nto leyo ebaluleke kakhulu kwi-DN1000 enkulu kakhulu.

Le valve isebenzisa ulungelelwaniso oludibeneyo lwe-counterweight energy storage kunye ne-hydraulic slow-closing cylinder. I-hydraulic actuator ivula i-valve ize iphakamise i-counterweight ukuze igcine amandla anokubakho anomtsalane ngaxeshanye. Kwiimeko ezingxamisekileyo ezifana nokucinywa kombane okanye ukulahleka koxinzelelo lwenkqubo, amandla anokubakho agciniweyo e-counterweight aqhuba i-valve ukuba ivale ngokuzenzekelayo. Kunye ne-buffer oil cylinder, ifikelela kulandelelwano lokuvala oluhlengahlengiswayo olunezigaba ezibini: ukuvala ngokukhawuleza ngaphambi kokuba kulandelwe kukuvalwa kancinci kokugqibela. Le ndlela ithintela ngempumelelo ii-spikes zoxinzelelo lwe-hammer yamanzi eziveliswa ngexesha lokuvalwa kwepompo kwaye ithintela umonakalo kwisakhiwo semibhobho kunye neendibano zepompo.

Idibanisa imisebenzi yevalvu yokwahlukanisa kunye nevalvu yokujonga engabuyiyo. Iyunithi enye ingathabatha indawo yodibaniso oluqhelekileyo lwevalvu yesango kunye nevalvu yokujonga, eyenza kube lula kakhulu ulungiselelo lwemibhobho, inciphise utyalo-mali lokwakha izakhiwo, umthwalo womsebenzi wokufaka kwindawo kunye neendleko zolondolozo lwexesha elide. Ixhotyiswe ngezixhobo zomda woomatshini kunye neenzwa zempendulo yesikhundla, ivalvu iyahambelana neenkqubo zolawulo oluzenzekelayo lwe-PLC kwaye ixhasa ukusebenza kwesandla kwendawo kunye nolawulo lwe-interlock olukude. Ifanelekile kwizikhululo zokumpompa ezizenzekelayo, izityalo zamanzi, ukusasazwa kwamanzi kamasipala, ukususwa kwetyuwa emanzini olwandle kunye nezinye izibonelelo zothutho lolwelo.

Iivalvu eziqhelekileyo ezinkulu zinemida ephawulekayo: isantya sokuvala esingalawulekiyo, ukungabikho kokhuseleko olungenamsebenzi xa umbane ungasebenzi, kunye namandla aneleyo olwakhiwo lwemizimba yeevalvu ezinkulu. Le valve yebhabhathane edityanisiweyo ye-hydraulic counterweight evala kancinci enomzimba we-S355J isombulula la manqaku entlungu aqhelekileyo ngokusebenzisa iinkcukacha zezinto ezilungiselelweyo, indlela yokuqhuba evuthiweyo kunye ne-logic yolawulo ethembekileyo. Igcina i-coefficient yokumelana nokuhamba kwamanzi ephantsi, ukusebenza okuzinzileyo kokutywina kunye nesantya esiphantsi sokusilela ngexesha lenkonzo eqhubekayo ixesha elide. Ibe yinkcazo eqhelekileyo kwiiprojekthi zokugcinwa kwamanzi kwihlabathi liphela kunye nolwakhiwo lonikezelo lwamanzi. Ixesha lokuvula nokuvala elenziwe ngokwezifiso, i-anti-corrosion coating kunye neepakeji zolawulo lwe-hydraulic ezihambelanayo ziyafumaneka ngokweemeko zokusebenza kwendawo.

Kubathengi bobunjineli bamazwe ngamazwe, intsimbi yolwakhiwo ye-S355J ihambelana nemigangatho yezinto zaseYurophu, enceda ukuhlolwa kwezinto kunye nokwamkelwa kweprojekthi kwiiprojekthi zaphesheya kweYurophu, eMzantsi-mpuma Asia, eMbindi Mpuma nakwezinye iindawo. Isilinda se-buffer sivumela ukulungiswa kakuhle kwe-engile yokuvala kancinci kunye nobude bexesha. Iinjineli zinokulinganisa ngokuchanekileyo ukusebenza koxinzelelo lwehamile yamanzi ngokusekelwe kubude bombhobho wokwenyani, isantya sokuhamba kunye neempawu eziphakathi.

Ngaphandle kwendawo yokucoca amanzi acocekileyo, ivalvu inokuphuculwa ukuze icubungule amanzi aluhlaza ngedaka elincinci kunye namanzi olwandle angenaxinzelelo oluphezulu kunye nonyango olukhethekileyo lokulwa nokugqwala komphezulu. Iyunithi ye-hydraulic encedisayo incinci kwaye ilula ukuyisebenzisa ukugcinwa rhoqo; iinxalenye ze-oyile cylinder kunye ne-counterweight assembly ziyafikeleleka kwihlabathi liphela ukuxhasa inkonzo yasekhaya emva kokuthengisa. Xa kuthelekiswa nezinye izixhobo zokunciphisa iihamile zamanzi ezifana neetanki zokunyuka kunye neenqanawa zomoya, esi sisombululo sevalvu esipheleleyo sinciphisa uhlahlo-lwabiwo mali lweprojekthi kwaye sithatha indawo encinci ngaphakathi kwezakhiwo zepompo, nto leyo eyinzuzo ephambili kwiiprojekthi ezinesakhiwo segumbi esincinci.