Cavitation ni iki? Nigute wabikuraho?

Nikiindangacavitation? Nigute wabikuraho?

Tianjin Tanggu Amazi-Ikidodo Valve Co, Ltd.

Tianjin，UBUSHINWA

19，Kamena，2023

Nkuko amajwi ashobora kugira ingaruka mbi kumubiri wumuntu, imirongo imwe n'imwe irashobora kwangiza ibikoresho byinganda mugihe valve igenzura yatoranijwe neza, harikibazo cyiyongera cyokwiruka, bizatera urusaku rwinshi no kunyeganyega, bikavamo cyane kwangirika byihuse kumiyoboro yimbere no kumanuka yaindanga.

Byongeye kandi, urusaku rwinshi rusanzwe rutera kunyeganyega bishobora kwangiza imiyoboro, ibikoresho nibindi bikoreshoAgacirohamwe nigihe cyigihe, kwangirika kwibigize, cavitation cavitation iterwa na sisitemu y'imiyoboro ikunze kwangirika cyane. Ibi byangiritse ahanini biterwa ningufu zurusaku rw urusaku, inzira yihuta yo kwangirika hamwe na cavitation bigaragazwa nurwego rwurusaku rwinshi rwa vibrasi nini ya amplitude iterwa no gushiraho no gusenyuka kw'ibibyimba byamazi hafi no hepfo yubugingo..

Nubwo ibi bikunze kugaragara mumupiraindangana rotate rotale mumubiri, irashobora kugaragara mubyukuri mugihe gito, gukira cyane bisa nigice cya wafer igice cya V-ballindanga, cyane cyaneikinyugunyugukuruhande rwo hepfo ya valve iyo iindangairashimangirwa mumwanya umwe ukunda kwibasirwa na cavitation phenomenon, ikunda gutemba mumiyoboro ya valve no gusana gusudira, valve ntabwo ikwiranye niki gice cyumurongo.

Hatitawe ku kuba cavitation iboneka imbere muri valve cyangwa epfo na ruguru ya valve, ibikoresho mukarere ka cavitation bizangirika cyane kuri firime ultra-thin, amasoko hamwe nuduce duto twa cantilever, kunyeganyega kwa amplitude birashobora gukurura ihungabana. Ingingo zo gutsindwa kenshi ziboneka mubikoresho nkibipimo byerekana umuvuduko, imashini itanga, amaboko ya thermocouple, fluxmeter, sisitemu yo gutoranya Acuator, imyanya hamwe na sisitemu ntarengwa irimo amasoko bizagerwaho no kwambara byihuse, kandi imitwe yimyenda, ibifunga hamwe nabahuza bizacika intege bikananirana kubera kunyeganyega.

Kwangirika kwangirika, kugaragara hagati yimyenda yambarwa ihungabana, irasanzwe hafi yimitsi. Ibi bitanga okiside ikomeye nka abrasives kugirango yihutishe kwambara hagati yimyenda yambarwa. Ibikoresho byibasiwe birimo kwigunga no kugenzura, usibye kugenzura ububiko, pompe, ecran ya ecran, icyitegererezo hamwe nubundi buryo bwo kuzunguruka cyangwa kunyerera.

Kunyeganyega kwinshi kwa amplitude birashobora kandi guturika no kubora ibyuma bya valve ibyuma hamwe nurukuta rw'imiyoboro. Ibice by'icyuma bitatanye cyangwa ibikoresho bya chimique byangiza bishobora kwanduza itangazamakuru mu muyoboro, ibyo bikaba bishobora kugira ingaruka zikomeye ku miyoboro y’isuku n’isuku ryinshi. Ibi kandi ntibyemewe.

Guhanura kunanirwa kwa cavitation kunanirwa kumashanyarazi biragoye kandi ntabwo bibarwa gusa kugabanuka k'umuvuduko. Ubunararibonye bwerekana ko bishoboka ko umuvuduko uri mumigezi minini ugabanuka kumuvuduko wumwuka wamazi mbere yo guhumeka kwakarere no gusenyuka kwinshi. Bamwe mubakora valve bateganya kunanirwa kwizuba imburagihe mugusobanura kugabanuka kwangirika kwambere. Uburyo bwa uruganda rukora valve yo gutangirana no guhanura kwangirika kwarwo rushingiye ku kuba ibyuka byangirika, bigatera cavitation n urusaku. Hemejwe ko ibyangiritse byangirika bizirindwa niba urwego rwurusaku rwabazwe ruri munsi yimipaka yavuzwe hepfo.

Ingano ya Valve kugeza kuri santimetero 3 - 80 dB

Ingano ya Valve ya santimetero 4-6 - 85 dB

Ingano ya Valve 8-14 santimetero - 90 dB

Ingano ya Valve ya santimetero 16 nini - 95 dB

Uburyo bwo gukuraho ibyangiritse

Igishushanyo cyihariye cya valve kugirango ikureho cavitation ikoresha ibice bitandukanijwe hamwe nigitutu cyamanutse:
"Valve diverion" ni ukugabanya imigezi minini mumigezi mito mito, kandi inzira yo gutembera ya valve yarateguwe kuburyo imigezi itembera mumubare muto ugereranije. Kuva igice cyubunini bwa cavitation bubble kibarwa binyuze mu gufungura inzira inyuramo. Gufungura bito bifasha utubuto duto, bikavamo urusaku ruke no kwangirika gake iyo byangiritse.

"Graded pressure drop" bisobanura ko valve yagenewe kugira ingingo ebyiri cyangwa nyinshi zo guhinduranya murukurikirane, bityo aho kugirango igitutu cyose kigabanuke mumuntambwe imwe, ifata intambwe ntoya. Kutagabanuka k'umuvuduko kugiti cyawe birashobora kubuza umuvuduko mukugabanuka kugabanuka k'umuvuduko wumwuka wamazi, bityo bikuraho ibintu byo gutoboka muri valve.

Ihuriro ryo gutandukana hamwe nigitonyanga cyumuvuduko mububiko bumwe butuma habaho kunanirwa kwifata by. Mugihe cyo guhindura valve, gushyira igenzura rya valve hamwe nigitutu kumurongo winjira ni mwinshi (urugero: kure cyane hejuru, cyangwa hejuru murwego rwo hasi), rimwe na rimwe bikuraho ibibazo bya cavitation.

Byongeye kandi, gushyira valve igenzura aho ubushyuhe bwamazi buri, bityo rero umuvuduko ukabije wumuyaga (nkubushyuhe buke bwo guhinduranya ubushyuhe) birashobora gufasha gukemura ibibazo bya cavitation.

Inshamake yerekanye ko cavitation phenomenon ya valve mubyukuri ntabwo ari imikorere yo kwangirika gusa no kwangirika kwimyanda. Imiyoboro yo hepfo n'ibikoresho nabyo biri mu kaga. Guteganya cavitation no gufata ingamba zo kubikuraho niyo nzira yonyine yo kwirinda ikibazo cyamafaranga ahenze yo gukoresha valve.