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Mkpọtụ Valve Control na cavitation

Mkpọtụ Valve Control na cavitation

Okwu mmalite

A na-emepụta ụda site na mmegharị nke mmiri site na valvụ.Ọ bụ naanị mgbe ụda na-adịghị mma ka a na-akpọ ya 'mkpọtụ'.Ọ bụrụ na mkpọtụ ahụ gafere ọkwa ụfọdụ, ọ nwere ike ịdị ize ndụ nye ndị ọrụ.Mkpọtụ bụkwa ezigbo ihe eji achọpụta ọrịa.Ka ụda ma ọ bụ mkpọtụ na-esite na esemokwu, oke mkpọtụ na-egosi mmebi nwere ike ime n'ime valvụ.Enwere ike ime mmebi ahụ site na esemokwu n'onwe ya ma ọ bụ ịma jijiji.

Enwere isi isi mmalite nke mkpọtụ:

-Mechanical ịma jijiji
– Hydrodynamic mkpọtụ
– Aerodynamic mkpọtụ

Majijiji igwe

Igwe igwe na-emegharị ahụ bụ ihe ngosi dị mma nke mmebi nke akụkụ valvụ.N'ihi na mkpọtụ a na-emepụta na-adịkarị obere na ike na ugboro ole, ọ bụghịkarị nsogbu nchekwa maka ndị ọrụ.Vibration bụ nsogbu na valvụ stem ma e jiri ya tụnyere valvụ ọnụ.Ọkụ valvụ nwere ebe nkwado buru ibu ma ya mere ọ dị obere ka ọ ga-ebute nsogbu ịma jijiji.

Hydrodynamic Noise

A na-emepụta mkpọtụ hydrodynamic n'ime mmiri mmiri.Mgbe mmiri mmiri na-agafe na mmachi na mgbanwe nrụgide na-eme, ọ ga-ekwe omume na mmiri ahụ na-emepụta vapor egosipụta.A na-akpọ nke a na-egbuke egbuke.Cavitation bụkwa nsogbu, ebe afụ na-etolite ma na-ada.Mkpọtụ a na-emepụta adịghị adịkarị ize ndụ nye ndị ọrụ, mana ọ bụ ihe ngosi dị mma
nke nwere ike imebi akụkụ mkpụbelata.

Noise nke ikuku

A na-eme mkpọtụ ikuku ikuku site na ọgba aghara nke gas na ọ bụ isi iyi nke mkpọtụ.Ọkwa mkpọtụ a na-emepụta nwere ike ịdị ize ndụ nye ndị ọrụ, ma dabere na oke mgbaba na mbelata nrụgide.

Cavitation na ọkụ

Na-egbuke egbuke

Na-egbuke egbuke bụ ọkwa mbụ nke cavitation.Otú ọ dị, ọ ga-ekwe omume na-egbuke egbuke n'onwe ya na-enweghị cavitation na-eme.
Na-egbuke egbuke na-apụta n'ime mmiri na-asọpụta mgbe ụfọdụ mmiri mmiri na-agbanwe kpamkpam ghọọ uzuoku.A na-ebute nke a site na mbelata nrụgide na-amanye mmiri mmiri ka ọ gbanwee gaa na steeti gas.Mbelata nke nrụgide na-eme ka mmachi dị na mmiri na-asọpụta na-emepụta ọnụ ọgụgụ dị elu site na mmachi na ya mere mbelata nrụgide.
Isi nsogbu abụọ na-ebute na-egbu maramara bụ:

– Mgbochi
– Mbelata ikike

Mgbochi

Mgbe ihe na-egbuke egbuke na-eme, ihe na-esi na valvụ ahụ pụta bụ mmiri mmiri na vapour.Site na mmụba na-egbuke egbuke, uzuoku na-ebu mmiri mmiri.Ka ọsọ nke mmiri na-asọ asọ na-abawanye, mmiri mmiri na-eme dị ka ihe siri ike ka ọ na-adaba n'ime akụkụ nke valvụ ahụ.Enwere ike ibelata ngwa ngwa nke ọpụpụ ọpụpụ site n'ịba ụba nke oghere valve nke ga-ebelata mmebi ahụ.Nhọrọ nke iji ihe ndị siri ike bụ ihe ngwọta ọzọ.Angle valves kwesịrị ekwesị maka ngwa a ka ọkụ na-egbuke egbuke na-apụta n'ihu na mgbada site na mkpụbelata na mgbakọ valve.

Mbelata ike

Mgbe mmiri na-asọ asọ na-agbanwe akụkụ ụfọdụ ka ọ bụrụ uzuoku, dịka ọ dị n'ihe na-egbuke egbuke, ohere ọ nwere na-abawanye.N'ihi mpaghara ebelatala, ikike nke valvụ na-edozi nnukwu mmiri na-asọ asọ dị oke.Ọkpụkpọ a kpagburu bụ okwu a na-eji mgbe ike erute nwere oke n'ụzọ dị otu a

Cavitation

Cavitation bụ otu ihe ahụ na-egbuke egbuke ma e wezụga na a na-enweta nrụgide n'ime ebe a na-asọpụta nke na-eme ka uzuoku laghachi na mmiri mmiri.Nrụgide dị oke egwu bụ ike ikuku nke mmiri mmiri.Ọkụ na-egbuke egbuke na-apụta n'okpuru ala nke valvụ mkpụbelata mgbe nrụgide na-adaba n'okpuru nrụgide vapor, mgbe ahụ afụ na-adaba mgbe nrụgide ahụ gbakere n'elu nrụgide vapor.Mgbe afụ ahụ daa, ha na-ebuga nnukwu ebili mmiri na-ama jijiji n'ime iyi na-asọpụta.Isi nchegbu na cavitation, bụ mmebi nke mkpụbelata na ahụ nke valvụ.Nke a bụ isi ihe kpatara ndakpọ nke afụ.Dabere n'ókè nke cavitation mepụtara, mmetụta ya nwere ike ịmalite site na a
ụda mkparị dị nro na-enweghị obere ma ọ bụ enweghị akụrụngwa mebiri nrụnye dị oke mkpọtụ na-akpata mmebi anụ ahụ siri ike na valvụ na ọkpọkọ mgbada siri ike cavitation siri ike na-eme mkpọtụ ma nwee ike ụda dị ka ajịrịjaja na-asọfe na valvụ ahụ.
Mkpọtụ a na-emepụta abụghị ihe na-echegbu onwe ya site n'echiche nchekwa nke onwe, ebe ọ na-adịkarị ala na ugboro ole na ike ya na nke a anaghị ebute ndị ọrụ nsogbu.


Oge nzipu: Eprel-13-2022