Mun dovalve (valve) yecavitation (kavitasiyɔn)? A bɛ se ka ban cogo di?
Tianjin Tanggu Ji-Sɔgɔlan Valve Co., Ltd
Tianjin ye,SINA
19nan na,Zuwɛnkalo,2023 sàn
I n’a fɔ mankan bɛ se ka nɔ jugu bila hadamaden farikolo la cogo min na, fɔkan dɔw bɛ se ka tiɲɛni kɛ izini minɛnw na ni kunnafoni-falen-falen-minɛn sugandira ka ɲɛ, o cogo kelen na, farati bɛ bonya ka ɲɛsin cavitation ma, o bɛna kɛ sababu ye ka mankan ni yɛrɛyɛrɛ hakɛ caman sɔrɔ, o bɛ na ni tiɲɛni teliyaba ye kosɛbɛ kɔnɔna ni duguma pibilikiw lavalve (valve) ye.
Ka fara o kan, a ka c’a la, mankanba bɛ kɛ sababu ye ka yɛrɛyɛrɛ min bɛ se ka pibilikiw, minɛnw ani minɛn wɛrɛw tiɲɛValve (valve) yeni waati tɛmɛna, yɔrɔw tiɲɛni, valve cavitation min bɛ sɔrɔ pibiliki siratigɛ la min ka teli ka tiɲɛniba kɛ. O tiɲɛni in bɛ sɔrɔ kosɛbɛ yɛrɛyɛrɛ mankan fanga fɛ, sɔgɔli teliya ani cavitation min bɛ jira ni mankanba ye min bɛ kɛ ni amplitude belebele ye min bɛ sɔrɔ ni watara bugunw jɔli n’u binni ye sɔgɔsɔgɔninjɛ kɛrɛfɛ ani a duguma.
Hali n’a ka ca a la o bɛ Kɛ bololabaara lavalvew (valve)w (valve).ani fɛn minnu bɛ wuli farikolo la, a bɛ se ka kɛ tiɲɛ na kɛnɛya surun na, min ka bon, i n’a fɔ V-ball ka wafer farikolo yɔrɔvalve (valve) ye, kɛrɛnkɛrɛnlenyalabutterfly valvew (wuluwuluw).ka bɔ duguma fan fɛ, ni a kɛravalve (valve) yebɛ degun yɔrɔ kelen na min ka teli ka kɛ cavitation phenomenon ye, min ka teli ka bɔgɔbɔgɔ valve piping ni welding dilancogo la, valve ma bɛn nin yɔrɔ in ma layini na.
A mana kɛ cogo o cogo, cavitation bɛ kɛ valve kɔnɔ walima valve duguma, minɛn minnu bɛ cavitation yɔrɔ la, olu bɛna tiɲɛniba kɛ filimuw la minnu ka fin kosɛbɛ, ressortw ani cantilever structures sections misɛnninw, amplitude vibrations belebelew bɛ se ka oscillations (yɛrɛyɛrɛli) lawuli. Dɛsɛ yɔrɔw bɛ sɔrɔ tuma caman na minɛnw na i n’a fɔ tansiyɔn jateminɛnanw, cikanw, thermocouple bololanɛgɛw, jibɔlanw, misali tacogo Actuators, positioners ani limit switches minnu kɔnɔ ressort bɛ sɔrɔ, olu bɛna sɛgɛn teliya la, ani jiginni brackets, fasteners ani connectors bɛna lajɔ ani ka dɛsɛ ka da yɛrɛyɛrɛ kan.
Fretting corrosion, min bɛ kɛ yɔrɔ sɛgɛnnenw ni ɲɔgɔn cɛ minnu bɛ yɛrɛyɛrɛ, o ka teli ka kɛ cavitation valves kɛrɛfɛ. O bɛ ɔkisizɛni gɛlɛnw dilan i n’a fɔ fɛn minnu bɛ sɔgɔsɔgɔ walasa ka sɛgɛn teliya yɔrɔ sɛgɛnnenw ni ɲɔgɔn cɛ. Minɛn minnu tɔɔrɔla, olu ye isolation ani check valves ye, ka fara control valves,pomps, rotating screens, samplers ani fɛn o fɛn kan min bɛ wuli walima ka sɛgɛn.
Yɛrɛyɛrɛli minnu ka bon kosɛbɛ, olu fana bɛ se ka nɛgɛdaga yɔrɔw ni pibiliki kogow kari ani ka u sɔgɔ. Nɛgɛkisɛw jɛnsɛnnenw walima kemikɛlifɛnw bɛ se ka fɛnw nɔgɔ minnu bɛ pibiliki kɔnɔ, o bɛ se ka nɔba bila pibiliki saniyalenw na ani pibilikiw la minnu saniya ka bon. O fana man kan ka kɛ.
Fiɲɛbɔlanw ka cavitation dɛsɛko fɔli ka gɛlɛn ka tɛmɛ, wa a tɛ jate dɔrɔn choke pressure drop ye. Ko kɛlenw b’a jira ko a bɛ se ka kɛ ko degun min bɛ jibolisiraba kɔnɔ, o bɛ jigin ka se jilama ka lafiɲɛbɔ tansiyɔn ma ka sɔrɔ ka yɔrɔ in lafiɲɛbɔ sigida la ani ka watara bulonba bin. Valve (valve) dilannikɛla dɔw bɛ tilebin-kɔnɔ-fɛnw tiɲɛni kofɔ ka kɔn a waati ɲɛ, u kɛtɔ ka tiɲɛni tansiyɔn jigincogo fɔlɔ ɲɛfɔ. Valve dilannikɛla dɔ ka fɛɛrɛ min bɛ daminɛ ni cavitation tiɲɛni kofɔli ye, o sinsinnen bɛ a kan ko watara bulonw bɛ bin, ka cavitation ni mankan bila mɔgɔ la. A jirala ko cavitation tiɲɛniba bɛna bali ni mankan hakɛ jatebɔlen bɛ dan minnu fɔlen bɛ jukɔrɔ, olu jukɔrɔ.
Valve hakɛ bɛ se santimɛtɛrɛ 3 ma – 80 dB
Valve hakɛ ye santimɛtɛrɛ 4-6 ye – 85 dB
Valve hakɛ ye santimɛtɛrɛ 8-14 ye – 90 dB
Valve hakɛw ye santimɛtɛrɛ 16 ye ani ka tɛmɛ o kan – 95 dB
Fɛɛrɛ minnu bɛ kɛ ka cavitation tiɲɛni ban
Valve kɛrɛnkɛrɛnnen dilanni walasa ka cavitation ban, o bɛ baara kɛ ni split flow ni graded pressure drop ye:
“Valve diversion” ye ka jibɔba dɔ tila ka kɛ jibɔ misɛnnin damadɔ ye, wa jibɔ sira dabɔra walasa jibɔyɔrɔ ka tɛmɛ da misɛnnin damadɔ fɛ minnu bɛ taa ɲɔgɔn fɛ. Komin cavitation bubble bonya yɔrɔ bɛ jate da wulilen fɛ, jibɔ bɛ tɛmɛ min fɛ. Da min ka dɔgɔn o bɛ kɛ sababu ye ka bugun misɛnninw kɛ, o bɛ na ni mankan dɔgɔyali ye ani tiɲɛni dɔgɔyali ni tiɲɛni ko don.
“Tansiyɔn jiginni hakɛ dantigɛlen” kɔrɔ ye ko a dabɔra walasa a ka ladilan yɔrɔ fila walima ka tɛmɛ o kan ka tugu ɲɔgɔn na, o la sanni tansiyɔn jigin bɛɛ ka kɛ sen kelen na, a bɛ taabolo misɛnnin damadɔw kɛ. Ni a dɔgɔyara ka tɛmɛ tansiyɔn kelen-kelen bɛɛ kan, o bɛ se ka degun min bɛ dɔgɔyali la, o bali ka jigin ji la, o bɛ kɛ sababu ye ka cavitation (kavitation) kɛcogo ban valve kɔnɔ.
Diverting ni pressure drop staging faralen ɲɔgɔn kan valve kelen kɔnɔ o bɛ sira Di cavitation resistance ɲɛ ka tɛmɛ. Valve caman cili waati, ka control valve bila ani ka degun bila valve dondaw la, o ka bon (misali la, sanfɛ fan yɔrɔ jan, walima sanfɛyɔrɔ min ka dɔgɔn), tuma dɔw la, o bɛ cavitation gɛlɛyaw ban.
Ka fara o kan, ka kunnafoni-falen-falen-minɛn bila ji funteni yɔrɔ la, o la, lafiɲɛbɔ tansiyɔn dɔgɔyali (i n’a fɔ funteni dɔgɔya fan fɛ funteni-falen-falen) bɛ se ka dɛmɛ ka cavitation gɛlɛyaw ban.
Kuma surun y’a Jira ko tiɲɛ na, bɔgɔdagaw ka cavitation phenomenon tɛ tiɲɛni kɛcogo dɔrɔn ye ani valve tiɲɛni dɔrɔn. Jiginni pibilikiw ni minɛnw fana bɛ farati la. Ka cavitation (kavitation) kofɔ ani ka fɛɛrɛw tigɛ walasa k’a ban, o de ye fɛɛrɛ kelenpe ye min bɛ se ka kɛ sababu ye ka i yɛrɛ tanga gɛlɛya ma min bɛ sɔrɔ valve (valve) musaka sɔngɔ gɛlɛnw na.
Poste waati: Zuwɛnkalo-25-2023
