I-valve ye-Hydraulic yezindlela ezintathu yokuhlinzeka ngamanzi e-heater enomfutho ophezulu
| Uhlobo | I-valve yezindlela ezintathu |
| Imodeli | I-F763Y-2500LB, F763Y-320, F763Y-420 |
| Ububanzi Okuzisholo | I-DN 350-650 |
Ngesikhathi sokusebenza okuvamile kwe-heater yomfutho ophezulu we-high-pressure engu-600 kuya ku-1,000MW supercritical (i-ultra-supercritical) yamandla ashisayo ashisayo, umzila oyinhloko we-valve yezindlela ezintathu ekungeneni kwe-heater yomfutho ophezulu uyavulwa futhi i-bypass ivaliwe. Ukunikezwa kwamanzi kubhayela kungena ku-heater enomfutho ophezulu ukusuka emzileni omkhulu ngaphambi kokungena kubhayela ngevalvu enezinhlangothi ezintathu endaweni yokukhipha i-heater enomfutho ophezulu.
- Umzimba we-valve nebhonethi zisebenzisa isakhiwo sensimbi esakhiwe ngokugcwele.
- Uhlobo lokuvala lomzimba we-valve nebhonethi lisebenzisa isakhiwo esizivala ngokucindezela.
- Phezulu kwebhonethi yevalvu inomjovo wamanzi kanye nezimbobo zokudonsa amanzi futhi ipiston yakhelwe kubhonethi yevalvu.
- Indawo yokuvala isihlalo sevalvu nediski isebenzisa i-Stellite No. 6 alloy spray welding.
- Ukuvalwa kwe-bypass kusebenzisa isakhiwo sokuvala esihlanganisa indandatho yokugcina amandla enwebekayo ye-PTFE ne-perfluoro O-ring.
- Izakhi ze-throttle ekungeneni kwe-valve yezindlela ezintathu kanye nesihlalo se-valve esiphezulu zisebenzisa idizayini edidiyelwe futhi azidingi i-throttle orifice eyengeziwe ngokuhlukana.
