Mitar vortex wani nau'in mita ne na juzu'i wanda ke yin amfani da wani abu na halitta wanda ke faruwa lokacin da ruwa ke gudana a kusa da wani abu mara nauyi.Mitoci masu gudana na Vortex suna aiki ƙarƙashin ƙa'idar zubar da vortex, inda ake zubar da vortices (ko eddies) a madadin abin.Yawan zubar da vortex yana daidai da saurin ruwan da ke gudana ta cikin mita.
Mitar kwararar Vortex sun fi dacewa don ma'aunin kwarara inda gabatarwar sassan motsi ke gabatar da matsaloli.Ana samun su a matakin masana'antu, tagulla, ko duk ginin filastik.Hankali ga bambance-bambance a cikin yanayin tsari yana da ƙasa kuma, ba tare da sassa masu motsi ba, ƙarancin lalacewa idan aka kwatanta da sauran nau'ikan mita kwarara.
Zane-zanen Mitar Gudun Vortex
Mitar kwararar vortex yawanci ana yin ta ne da bakin karfe 316 ko Hastelloy kuma ya haɗa da jikin bluff, taron firikwensin vortex, da na'urorin lantarki mai watsawa - kodayake na ƙarshen kuma ana iya hawa shi daga nesa (Hoto 2).Yawanci ana samun su cikin girman flange daga ½ in. zuwa inci 12. Farashin da aka shigar na mita vortex yana da gasa tare da na mitoci masu girma dabam a ƙarƙashin inci shida.Mitar jikin wafer (marasa flange) suna da mafi ƙarancin farashi, yayin da aka fi son mitoci masu ƙazafi idan ruwan tsari yana da haɗari ko yana cikin zafin jiki mai yawa.
Siffofin jiki na Bluff (square, rectangular, t-shaped, trapezoidal) da girma an gwada su don cimma abubuwan da ake so.Gwaji ya nuna cewa layin layi, ƙarancin ƙarancin lambar Reynolds, da azanci ga murɗawar bayanin martaba sun bambanta kaɗan kaɗan tare da siffar bluff.A cikin girman, jikin bluff dole ne ya kasance yana da nisa wanda shine babban isasshiyar juzu'i na diamita na bututu wanda dukkanin kwararar ke shiga cikin zubarwa.Na biyu, jikin bluff dole ne ya sami gefuna masu tasowa akan fuskar sama don gyara layin rabuwar kwarara, ba tare da la'akari da yawan kwarara ba.Na uku, tsayin jikin bluff a cikin alkiblar ɗigon ruwa dole ne ya zama wani nau'i mai yawa na faɗin jikin bluff.
A yau, yawancin mita vortex suna amfani da piezoelectric ko nau'in na'urori masu auna ƙarfin aiki don gano motsin motsi a kusa da jikin bluff.Wadannan na'urori masu ganowa suna amsawa da matsa lamba tare da ƙananan siginar fitarwa na lantarki wanda ke da mita iri ɗaya kamar oscillation.Irin waɗannan na'urori masu auna sigina na zamani ne, marasa tsada, sauƙin maye gurbinsu, kuma suna iya aiki akan kewayon zafin jiki da yawa - daga ruwa mai ƙira zuwa tururi mai zafi.Ana iya samun firikwensin firikwensin a cikin jikin mita ko waje.Jikakken na'urori masu auna firikwensin suna damuwa kai tsaye ta hanyar jujjuyawar matsin lamba kuma an rufe su a cikin lokuta masu tauri don jure lalata da tasirin zaizaye.
Na'urori masu auna firikwensin waje, yawanci piezoelectric iri gages, suna jin zubar vortex a kaikaice ta hanyar ƙarfin da aka yi akan mashaya shedder.An fi son na'urori masu auna firikwensin waje akan aikace-aikace masu ɓarna/ ɓarna don rage farashin kulawa, yayin da na'urori masu auna firikwensin ciki suna ba da mafi kyawun kewayon (mafi kyawun yanayin kwarara).Hakanan ba su da damuwa da girgiza bututu.Wurin lantarki yawanci ana ƙididdige fashewa da hana yanayi, kuma yana ƙunshe da na'urar watsawa ta lantarki, haɗin ƙarewa, da zaɓin mai nuna ƙimar kwarara da/ko jimla.
Salon Mitar Gudun Vortex
Mitar vortex masu wayo suna ba da siginar fitarwa na dijital mai ƙunshe da ƙarin bayani fiye da ƙimar kwarara kawai.Microprocessor a cikin ma'aunin motsi na iya daidaitawa ta atomatik don rashin isassun yanayin bututu, don bambance-bambance tsakanin diamita da na matin.
Aikace-aikace da Iyakoki
Ba a yawan ba da shawarar mita Vortex don batching ko wasu aikace-aikacen kwarara na wucin gadi.Wannan saboda saitin ɗigon ruwa na tashar batching na iya faɗuwa ƙasa da mafi ƙarancin adadin Reynolds na mita.Karamin jimlar jimlar, mafi mahimmancin kuskuren zai iya zama.
Ƙananan matsa lamba (ƙananan yawa) iskar gas ba sa samar da isasshen ƙarfin bugun jini, musamman idan saurin ruwa ya yi ƙasa.Sabili da haka, yana yiwuwa a cikin irin waɗannan ayyuka madaidaicin mita zai zama mara kyau kuma ƙananan kwarara ba za a iya aunawa ba.A gefe guda, idan an yarda da raguwar kewayon kuma mitar ta yi daidai da girmanta don kwarara ta al'ada, ana iya yin la'akari da ma'aunin motsi na vortex.
Lokacin aikawa: Maris 21-2024