Iyini i-valve cavitation? Indlela yokuyiqeda?

Yinii-valvei-cavitation? Indlela yokuyiqeda?

I-Tianjin Tanggu Water-Seal Valve Co., Ltd

I-Tianjin,ISHAYINA

19,Juni,2023

Njengoba nje umsindo ungaba nomthelela omubi emzimbeni womuntu, ama-frequencies athile angadlala umonakalo emishini yezimboni lapho i-valve yokulawula ikhethwe kahle, kunengozi eyengeziwe ye-cavitation, okuzoholela emazingeni aphezulu womsindo nokudlidliza, okuholela emazingeni aphezulu kakhulu. ukulimala okusheshayo kwamapayipi angaphakathi naphansi omfulai-valve.

Ngaphezu kwalokho, amazinga aphezulu omsindo ngokuvamile abangela ukundindizela okungase konakalise amapayipi, izinsimbi nezinye izinto zokusebenzaIvalvungokuhamba kwesikhathi, ukuwohloka kwezingxenye, i-valve cavitation ebangelwa uhlelo lwamapayipi okuthanda ukulimala okukhulu. Lo monakalo ubangelwa kakhulu amandla omsindo wokudlidliza, inqubo yokugqwala esheshisiwe kanye ne-cavitation eboniswa izinga eliphezulu lomsindo wokudlidliza okukhulu kwe-amplitude okukhiqizwa ukwakheka nokuwa kwamabhamuza omusi eduze naphansi komfula..

Nakuba ngokuvamile lokhu kwenzeka ebholeniama-valvenama-valve ajikelezayo emzimbeni, angenzeka ngempela ekutholeni okufushane, okuphakeme okufana nengxenye yomzimba oyicwecwe ye-V-ball.i-valve, ikakhulukaziizivalo uvemvaneohlangothini olungezansi lomfula we-valve lapho i-i-valveigcizelelwe endaweni eyodwa ethambekele ku-cavitation phenomenon, ejwayele ukuvuza ku-valve piping kanye nokulungiswa kwe-welding, i-valve ayifanele lesi sigaba somugqa.

Kungakhathaliseki ukuthi i-cavitation ivela ngaphakathi kwe-valve noma phansi kwe-valve, imishini endaweni ye-cavitation izoba ngaphansi komonakalo omkhulu kumafilimu ama-ultra-thin, iziphethu kanye nezakhiwo ze-cantilever zesigaba esincane, ukudlidliza okukhulu kwe-amplitude kungabangela ama-oscillations. Amaphuzu okuhluleka kaningi atholakala kumathuluzi afana nezikali zokucindezela, ama-transmitter, imikhono ye-thermocouple, ama-flowmeters, amasistimu amasampula Ama-Actuator, ama-positioner namaswishi anomkhawulo aqukethe iziphethu azohlupheka ngokusheshisa, futhi abakaki abakhwezayo, izixhumi nezixhumi zizoxega futhi zehluleke ngenxa yokudlidliza.

Ukugqwala okushisayo, okwenzeka phakathi kwezindawo ezigugile ezivezwe ukudlidliza, kuvamile eduze namavalvu e-cavitation. Lokhu kukhiqiza ama-oxide aqinile njengama-abrasives ukusheshisa ukuguga phakathi kwezindawo ezigugile. Imishini ethintekile ihlanganisa amavalvu okuhlukanisa kanye nokuhlola, ngaphezu kwamavalvu okulawula, amaphampu, izikrini ezijikelezayo, amasampula kanye nanoma iyiphi enye indlela ezungezayo noma eshelelayo.

Ukudlidliza kwe-amplitude ephezulu kungaqhekeka futhi kugqwese izingxenye zamavalvu ensimbi nezindonga zamapayipi. Izinhlayiya zensimbi ezihlakazekile noma izinto zamakhemikhali ezibolayo zingangcolisa imidiya esendleleni, okungaba nomthelela omkhulu ekufakweni kwamapayipi amavalvu ehlanzekile kanye nemidiya yamapayipi ahlanzekile. Lokhu nakho akuvunyelwe.

Ukubikezela kokuhluleka kwe-cavitation yama-valve epulaki kuyinkimbinkimbi futhi akumane kubalwe ukwehla kwengcindezi yokuminyanisa. Okuhlangenwe nakho kuphakamisa ukuthi kungenzeka ukuthi ukucindezela emfudlaneni omkhulu wehlela kumfutho womhwamuko woketshezi ngaphambi kokuhwamuka kwendawo yendawo kanye nokuwa kwebhamuza lesitimu. Abanye abakhiqizi be-valve babikezela ukwehluleka kokusitheka ngaphambi kwesikhathi ngokuchaza ukwehla komfutho womonakalo wokuqala. Indlela yomkhiqizi we-valve yokuqala ngokubikezela umonakalo we-cavitation isekelwe eqinisweni lokuthi amabhamuza e-steam ayawa, okubangela i-cavitation nomsindo. Kunqunywe ukuthi umonakalo omkhulu we-cavitation uzogwenywa uma izinga lomsindo elibaliwe lingaphansi kwemingcele ebhalwe ngezansi.

Usayizi wevalvu kufika kumayintshi angu-3 – 80 dB

Usayizi wevalvu wamayintshi angu-4-6 – 85 dB

Usayizi wevalvu 8-14 amayintshi - 90 dB

Osayizi bevalvu abangamayintshi angu-16 nangaphezulu - 95 dB

Izindlela zokuqeda umonakalo we-cavitation

Idizayini ekhethekile ye-valve yokuqeda i-cavitation isebenzisa ukugeleza kokuhlukaniswa nokwehla kokucindezela okulinganiselwe:
"I-valve diversion" iwukuhlukanisa ukugeleza okukhulu kube ukugeleza okuncane okuncane, futhi indlela yokugeleza ye-valve iklanyelwe ukuze ukugeleza kugeleze ngenani lezikhala ezincane ezifanayo. Njengoba ingxenye yobukhulu bebhamuza ye-cavitation ibalwa ngokuvula lapho ukugeleza kudlula khona. Ukuvuleka okuncane kwenza amabhamuza amancane, abangele umsindo omncane kanye nomonakalo omncane uma kuziwa ekulimaleni.

"Ukwehla kokucindezela okulinganiselwe" kusho ukuthi i-valve iklanyelwe ukuthi ibe namaphoyinti okulungisa amabili noma ngaphezulu ochungechungeni, ngakho esikhundleni sokuthi yonke ingcindezi yehle ngesinyathelo esisodwa, ithatha izinyathelo ezimbalwa ezincane. Ngaphansi kokwehla kokucindezela komuntu ngamunye kungavimbela ukucindezela ekuncipheni ekuweni kwengcindezi yomhwamuko woketshezi, ngaleyo ndlela kuqede ukwenzeka kwe-cavitation ku-valve.

Inhlanganisela ye-diverting and pressure drop staging ku-valve efanayo ivumela ukuphikiswa kwe-cavitation okuthuthukisiwe. Ngesikhathi sokuguqulwa kwe-valve, ukubeka i-valve yokulawula kanye nokucindezela endaweni yokungena kwe-valve kuphezulu (isb. ohlangothini olukude oluphezulu nomfula, noma ekuphakameni okuphansi), ngezinye izikhathi kuqeda izinkinga ze-cavitation.

Ukwengeza, ukubeka i-valve yokulawula endaweni yokushisa kwe-liquid, ngakho-ke ukucindezela kwe-vapor okuphansi (njengokushisa okuphansi kokushisa ohlangothini lokushisa) kungasiza ekuqedeni izinkinga ze-cavitation.

Isifinyezo sibonise ukuthi i-cavitation phenomenon yama-valve empeleni ayigcini nje ngokusebenza kokuwohloka kanye nokulimala kwama-valve. Amapayipi kanye nezinto zokusebenza nazo zisengozini. Ukubikezela i-cavitation nokuthatha izinyathelo zokuyiqeda kuwukuphela kwendlela yokugwema inkinga yezindleko ezibizayo zokusetshenziswa kwe-valve.