Siyini Isikhathi Sokuvula Nokuvala se-Globe Valve

Isikhathi sokuvulwa nokuvalwa kwe-ivalvu yomhlabaisikhathi esithathwa yidiski yevalvu ukusuka ekuvalekeni ngokuphelele kuye ekuvulekeni ngokuphelele, noma ukusuka ekuvulekeni ngokuphelele emuva kuye ekuvalekeni ngokuphelele. Ngenxa yokuthi ivalvu yomhlaba wonke isebenzisa isiqu esikhuphukayo esiqondile kanye nesondo lesandla noma i-actuator enama-turn amaningi, isikhathi sayo sokusebenza ngokuvamile siba side kunezivali ezifana namavalvu ebhola noma amavalvu ebhabhathane.

Isikhathi Esivamile Sokuvula Nokuvala

①Ivalvu Yesihlabathi Esetshenziswa Ngesandla

• Osayizi abancane (DN15–DN50):
  Imizuzwana emi-5–12ngokujikeleza okuvamile kwesondo lesandla.

• Osayizi abaphakathi (DN65–DN150):
  Imizuzwana eyi-10–25kuye ngokuhamba kwesiqu kanye namandla omqhubi.

• Osayizi abakhulu (DN200–DN350 nangaphezulu):
  Imizuzwana engama-25–60 noma ngaphezulu, njengoba zidinga ukujika kaningi ukuze zihambise idiski.

②Ivalvu Yesihlabathi Esebenza Ngogesi

• Ama-actuator amaningi kagesi asebenza ngaphakathi kwalokhu okulandelayo:
  Imizuzwana engama-20–60 (isivinini esijwayelekile)
  Ama-actuator ashesha kancane angathatha imizuzwana eyi-120 ukuze ama-valve amakhulu agweme isando samanzi.

③Ivalvu Yesihlabathi Eqhutshwa Ngomoya

• Kushesha kunogesi kodwa kuhamba kancane kunama-valve okuvula/okuvala.
  Ibanga elijwayelekile: imizuzwana emi-3–20, kuye ngokuthi umoya ukhona kanye nosayizi we-actuator.

Kungani Ama-Globe Valve Ethatha Isikhathi Eside Ukusebenza

• ①Isiqu kumele sihambe ibanga elide ukuze siguqule ukugeleza ngokunembile.

• ②Isondo lesandla lidinga ukujika kaningi ukuze kugwenywe izinguquko eziphuthumayo zokucindezela.

• ③Umklamo wevalvu ubeka phambili ukulawula ukugeleza kanye nokunemba esikhundleni sokuvala ngokushesha.

• ④Ukusebenza kancane kusiza ekunciphiseni i-water hammer, ikakhulukazi ezinhlelweni zasolwandle nezezimboni.

Izici Ezithinta Isikhathi Sokusebenza

• ①Usayizi wevalvu kanye nesilinganiso sengcindezi

• ②Ukuphakama kwentambo yesiqu (intambo encane = ukunyakaza okuhamba kancane)

• ③Uhlobo lwe-actuator (olwenziwa ngesandla, olusebenza ngogesi, olusebenzisa umoya, olusebenzisa i-hydraulic)

• ④Ingcindezi yesistimu

• ⑤Ukungqubuzana noma ukuguguleka ngaphakathi kwevalvu

• ⑥Izilungiselelo ze-torque noma isivinini kuma-actuator

Ngezinhlelo zokusebenza zasolwandle, ukuvala okuhamba kancane kusetshenziswa ngamabomu ukuvikela izinhlelo zamanzi olwandle, imigqa ye-ballast, kanye nezinhlelo zokupholisa ekukhuphukeni kwengcindezi okungazelelwe.