Iimitha zokuhamba kweVortexzisebenza ngokusekelwe kumgaqo wesitalato iKármán vortex. Ngenxa yeempawu zazo ezifana nokuchaneka okuphezulu, umlinganiselo wokujika obanzi, kunye nokungabikho kwezixhobo ezihambayo, ii-vortex flowmeters zisetyenziswa kakhulu ekulinganisweni komphunga, igesi, kunye nokuhamba kolwelo. Nangona kunjalo, ezi zixhobo zinobuthathaka kakhulu kwiimeko zokuhamba kolwelo, kwaye ukusebenza kwazo okuphezulu kusenokungafezekiswa ngokupheleleyo phantsi kwazo zonke iimeko zokusebenza. Ukuba kukho ukunqongophala kokuqonda okunzulu kweemeko zenkqubo okanye ingqalelo enganeleyo kwiinkcukacha zendawo yokufakela, esi sixhobo sokuchaneka sinokuhlangabezana lula nemiba efana nokufundwa okungaqhelekanga, iimpazamo ezandileyo, kunye nee-alamu eziqhelekileyo. Ke ngoko, ukusuka ekukhetheni imodeli ukuya ekufakweni, ukubekwa emgangathweni kokusebenza kuwo onke amanqanaba kubalulekile ukuqinisekisa ukusebenza kokugqibela kwe-vortex flowmeter.
Ukukhetha imodeli
Ukulungelelanisa ukhetho ngokwesicelo esithile kuyimfuneko yokulinganisa ngokuchanekileyo. Inkqubo yokukhetha kufuneka igxile ekufanisweni ngokuchanekileyo kwezinto ezintathu eziphambili: uluhlu lokuhamba kwamanzi, ububanzi bombhobho kunye neempawu eziphakathi, ukuze kuthintelwe iingxaki ezibangelwa kukukhetha okungafanelekanga okunokubangela utshintsho olulandelayo.
Ukuthelekiswa koLuhlu:Izinga lokuhamba kweenkqubo zokwenyani kufuneka liwele ngaphakathi kwe-20% ukuya kwi-80% yoluhlu lwesixhobo. Ukuba izinga lokuhamba liwela ngaphantsi kwe-20%, isignali ye-vortex ibuthathaka kwaye isengozini yokungahoywa ngenxa yomsebenzi ophantsi wokunqunyulwa kokugeleza (okubangela ukufundwa kokugeleza kwe-0). Ukuba idlula i-80%, ingadlula umda ophezulu wokunyamezelana kwesensor (umz., umonakalo omkhulu kwiisensors ze-piezoelectric).
Ukuthelekiswa kwe-DN:Ububanzi obuqhelekileyo (i-DN) be-ortex flowmeter kufuneka buhambelane nobukhulu bombhobho wenkqubo ukuze kuthintelwe ngempumelelo ukuphazamiseka kokuhamba okubangelwa kukwahluka kobukhulu be-DN. Nangona kunjalo, kwiimeko apho umbhobho wenkqubo mkhulu kodwa izinga lokuhamba lokwenyani lincinci (umz., ukuhamba okuphakathi kumbhobho we-DN200 kuhambelana nomthamo we-DN100 flowmeter), kuyimfuneko ukusebenzisa i-flowmeter enoyilo oluncitshisiweyo lwe-bore emva kokubala ukwandisa isantya solwelo ukuya ngaphakathi koluhlu oluqhelekileyo lokusebenza lwe-vortex flowmeter.
Iipropati Eziphakathi
- Imeko yeSigaba:IiVortex flowmeters zingasetyenziselwa kuphela ukulinganisa ulwelo lwesigaba esinye. Ziphephe izicelo apho i-medium inokutshintsha isigaba xa ikwimeko yokusebenza.
- Ubushushu/Uxinzelelo:Ubushushu kunye noxinzelelo lwesixhobo kumisela ukukhethwa kwecandelo (umz., umlinganiselo wobushushu we-piezoelectric sensor) kunye nomlinganiselo woxinzelelo lomzimba. Ukuba iimeko zidlula uluhlu oluqhelekileyo, kufuneka kukhethwe iimodeli zobushushu obuphezulu okanye zoxinzelelo oluphezulu.
- Ukugqwala:Ukuba i-medium iyayidlakaza into yombhobho, kuxhomekeka kwinto efunekayo kwi-flowmeter body kunye ne-liner (SS304/316L, i-Hastelloy alloy, i-Titanium, njl.njl.).
- Ukuxinana:IiVortex flowmeters zinovelwano kwi-fluid viscosity. I-viscosity egqithisileyo inokukhokelela kwinani eliphantsi likaReynolds, nto leyo enokuthintela ukuhamba kwamanzi ukuba angangeni kwimeko yokuxinana (apho ukuchitheka kwe-vortex kungazinzi), nto leyo ethintela ukusebenza okuqhelekileyo.
- Isantya Sokuhamba Komoya:Uluhlu lwesantya sokuhamba kwe-vortex flowmeter kufuneka lumiselwe ngokuqwalasela uhlobo oluphakathi (igesi/ulwelo), iimpawu eziphakathi (ukuxinana, uxinano) kunye nolwakhiwo lwesixhobo. Umgaqo ophambili kukuqinisekisa ukuveliswa kwe-vortex okuzinzileyo ngaphandle kokonakalisa isixhobo okanye imibhobho.
Ufakelo
IiVortex flowmeters zinobuthathaka kakhulu kwiimeko zokufakelwa. Ukuqinisekisa ukuba imibhobho isebenza ngokuthe tye kunye nokuphelisa ukuphazamiseka kubalulekile.
Ukubaleka kwePipe ethe Tye:Ubude bokuhamba kwepayipi ngokuthe tye yeyona nto iphambili ekufuneka iqwalaselwe xa kufakelwa i-vortex flowmeter. Izinto ezikwi-upstream ezifana neengqiniba, iivalvu, okanye iimpompo zinokuvelisa ii-eddies eziphazamisa iprofayili yesantya sokuhamba esiqhelekileyo. Ngokwesiqhelo, kufuneka ukubaleka okuthe tye okungaphantsi kwe-upstream okuphindwe ka-15 ubukhulu bepayipi (15D) yesixhobo kunye nokubaleka okuthe tye okungaphantsi kwe-5D. Ukuba kukho ivalvu yokulawula evulekileyo kancinci okanye iingqiniba ezimbini kwi-plane eyahlukileyo, ukubaleka okuthe tye okufunekayo kunokunyuka ukuya kwi-40D okanye ngaphezulu ukuqinisekisa ukuhamba okuzinzileyo.
Isikhokelo sokufakelwa:Utolo olukwindlu ye-flowmeter kufuneka lulandelwe ngokungqongqo ngexesha lokufakelwa ukuqinisekisa ukuba luhambelana necala lokuhamba kolwelo. Xa ulinganisa ulwelo, imitha kufuneka ifakwe kwindawo ephantsi kwinkqubo yemibhobho ukuthintela ukuvaleka kwegesi kwityhubhu yokulinganisa. Xa ulinganisa iigesi, kufuneka ifakwe kwindawo ephezulu ukuthintela ukuqokelelana kolwelo. Ukufakela ngokuthe nkqo nge-liquid medium, ukuhamba kufuneka kube phezulu ukuze kuqinisekiswe ukuba ipayipi ihlala izaliswe ngokupheleleyo ngexesha lokusebenza.
Ukuphazamiseka komzimba:Indawo yokufakela kufuneka igcinwe kude neendawo ezinamandla zemagnethi kunye neendawo ezinokungcangcazela kakhulu (ezifana neetransformer kunye neendawo zokumpompa). Ukuba ukungcangcazela kubalulekile, kufuneka kusetyenziswe amanyathelo okudambisa, njengokufaka izibophelelo zepayipi kwi-2D phezulu nasezantsi kunye nee-anti-vibration pads. Ngexesha lokufakela, kubalulekile ukuqinisekisa ukuba i-flowmeter bore ihambelana ngokudibeneyo nobubanzi bangaphakathi bombhobho. Iigasket akufuneki zivele ngaphakathi kombhobho, njengoko oku kuya kubangela ukuphazamiseka kokuhamba kwaye kukhokelele kwiimpazamo zokulinganisa.
Inzuzo yee-vortex flowmeters ikukusebenza kwazo kwiintlobo ezahlukeneyo zolwelo kunye nomlinganiselo ophezulu weendleko-ukusebenza, zidlala indima engenakutshintshwa kwizicelo zokulinganisa umphunga, igesi, kunye nolwelo. Nangona kunjalo, kufuneka kuqondwe ngokucacileyo ukuba azisisixhobo esiqhelekileyo "sokuplaga nokudlala" kodwa zisisixhobo esichanekileyo esinobuthathaka kakhulu kwiimeko zolwelo, uqwalaselo lwemibhobho, kunye nendawo yokufakela. Iingxaki ezininzi zokusebenza ezidibene nee-vortex flowmeters ekusebenzeni zinokulandelwa emva kokugweba okungafanelekanga ngexesha lesigaba sokukhetha okanye ukungakhathali kweenkcukacha ngexesha lokufakwa kwindawo. Ke ngoko, xa kusetyenziswa ii-vortex flowmeters, kufuneka kwamkelwe indlela yobunjineli beenkqubo, izidibanise kwisekethe yepayipi iyonke ukuze ziqwalaselwe ngokupheleleyo. Ukunika ingqalelo esondeleyo kwiingongoma eziphambili ezikhankanyiweyo apha ngasentla kubalulekile ukuqinisekisa uzinzo lwenkqubo.
Njengeonamavaisixhobo somculoumenzi kunye nomthengisi,Shanghai Wangyuanubandakanyeke kakhulu kushishino lweamashumi eminyaka, siqokelela ulwazi olubanzi malunga nokusetyenziswa kwezicelo zentsimi kunye nokukwazi ukusombulula iingxaki ngempumelelo. Sizimisele ukubonelela abathengi ngeemveliso ezibonisa ukusebenza okuzinzileyo kunye nomgangatho othembekileyo, kunye nenkxaso yobugcisa yobungcali nefike ngexesha. Ukuba unayo nayiphi na imfuneko malungai-flowmeterukhetho okanye usetyenziso, nceda uzive ukhululekileQhagamshelana nathiisisombululo esilungiselelwe wena.
Ixesha lokuthumela: Matshi-10-2026