Ivalve yombane eneendlela ezintathu zokubonelela ngamanzi kwisifudumezi soxinzelelo oluphezulu
| Uhlobo | Indlela ezintathu iValve |
| Umzekelo | F963Y-2500LB, F963Y-420 |
| Idayamitha yeNominal | DN 350-600 |
Ngethuba lokusebenza okuqhelekileyo kwe-heater ephezulu ye-600 ukuya kwi-1,000MW i-supercritical (i-ultra-supercritical) iyunithi yamandla e-thermal, indlela ephambili ye-valve yeendlela ezintathu kwi-inlet ye-heater yoxinzelelo oluphezulu ivuliwe kwaye i-bypass ivaliwe. Ukunikezelwa kwamanzi kwibhoyila kungena kwisifudumezi soxinzelelo oluphezulu ukusuka kwindlela ephambili ngaphambi kokungena kwibhoyila ngevalve yeendlela ezintathu kwindawo yokukhupha isifudumezi soxinzelelo oluphezulu.
- Umzimba wevalve kunye nebhonethi zamkela ubume bentsimbi obunjwe ngokupheleleyo.
- Uhlobo lokutywina lomzimba wevalve kunye nebhonethi ithatha imo yoxinzelelo yokuzitywina.
- Uyilo lwevalve luyilwe kunye nezihlalo zevalve eziphezulu nezisezantsi. Xa i-valve inyuka ukuze ivule kwaye unikezelo lwamanzi lungena kwi-heater yoxinzelelo oluphezulu, i-valve core idibanisa isihlalo esiphezulu sevalve ukutywinwa ukukhusela ukunikezelwa kwamanzi ekungeneni kwi-bypass; xa ivalve isihla ukuze kuvalwe kwaye unikezelo lwamanzi lungena kwibhoyila nge-bypass, undoqo wevalve unxibelelana nesitulo esisezantsi sevalvu yokutywinwa ukuqinisekisa ukuqhawuka kunye nokulungiswa kwesifudumezi soxinzelelo oluphezulu.
- Isitulo sevalve ephezulu kunye nebhonethi yevalve yamkele uhlobo lolwakhiwo lolwahlulo ukuququzelela ukuqhawuka.
- Indlela yokudlula apho unikezelo lwamanzi ahamba khona luneziqalelo zokuthontsiza, inika ilahleko yoxinzelelo efanayo njengemibhobho yesifudumezi soxinzelelo oluphezulu apho okuphakathi kudlula khona ukunqanda ukuguquguquka koxinzelelo lonikezelo lwamanzi.
- Kwimeko yokukhutshwa kwesifudumezi soxinzelelo oluphezulu, ivili lesandla kwindawo ephezulu yevalve inokuncedisa ngokuvala ivalve ngokunyanzelekileyo.
- Izinto ze-throttle kwi-inlet yevalve yeendlela ezintathu kunye nesihlalo sevalve ephezulu zamkela uyilo oludibeneyo kwaye akukho mfuneko yokongeza i-throttle orifice ngokwahlukeneyo.
