Intshayelelo
Iimitha zokuhamba zetshaneli ezivulekileyozizixhobo ezibalulekileyo zokulinganisa amazinga okuhamba kolwelo kwiitshaneli ngaphandle kokufaka ulwelo kumbhobho, njengakwiindawo zokunyanga amanzi amdaka, iinkqubo zokunkcenkceshela, kunye nokubeka esweni umlambo. Ukuqonda izinto ezilungileyo nezingalunganga kubalulekile ukuze kusetyenziswe ngokufanelekileyo.
Iingenelo
Ukusebenza kakuhle kweendleko
Xa kuthelekiswa nombhobho othile ovaliweyoumlinganiselo wokuhamba kwamanziiinkqubo,ii-flowmeters zetshaneli ezivulekileyozidla ngokuba zisebenza kakuhle ngexabiso eliphantsi. Umzekelo, ukwakhiwa kwe-flume okanye i-weir elula, eziziintlobo zezakhiwo zokulinganisa ukuhamba komjelo ovulekileyo, zinokubiza kancinci. Ezi zakhiwo zisisiseko zinokwenziwa ngezinto eziqhelekileyo ezifana nekhonkrithi okanye isinyithi, kwaye azidingi iinkqubo zokuvelisa ezintsonkothileyo. Oku kusebenza kakuhle kweendleko kuzenza zilungele ukusetyenziswa okukhulu, njengakwiinethiwekhi zokunkcenkceshela ezinkulu apho iindleko zokufaka izixhobo zokulinganisa ukuhamba okuntsonkothileyo zinokuba nzima kakhulu.
Ufakelo Olulula
Ukufakelwa kweii-flowmeters zetshaneli ezivulekileyongokubanzi kulula. Zingafakwa ngaphandle kokuphazamiseka okukhulu kwinkqubo yokuhamba kwamanzi ekhoyo. Umzekelo, i-flowmeter ye-ultrasonic evulekileyo yetshaneli inokufakwa ngokukhawuleza ecaleni kwetshaneli. Akukho mfuneko yokusika imibhobho okanye ukwenza utshintsho olukhulu kwindlela yokuhamba kwamanzi. Olu lula lokufakela lunciphisa ixesha lokungasebenzi kakuhle kwimisebenzi, nto leyo eluncedo ngakumbi kwiinkqubo apho ukuhamba kwamanzi okuqhubekayo kubalulekile, njengakwizityalo zonyango lwamanzi amdaka kwimizi-mveliso.
Uluhlu olubanzi lwezicelo
Iimitha zokuhamba zetshaneli ezivulekileyoZiyakwazi ukumelana nolwelo olwahlukeneyo kunye neemeko zokuhamba kwamanzi. Zinokulinganisa ukuhamba kwamanzi, amanzi amdaka, kwanezinye izinto ezimdaka kwiindlela ezivulekileyo. Ekujongeni okusingqongileyo, zisetyenziselwa ukulinganisa ukuhamba komlambo, okunceda ekuqikeleleni izikhukhula kunye nolawulo lwemithombo yamanzi. Kwiimeko zoshishino, zinokulawula ukuhamba kolwelo lwenkqubo olune-viscosities ezahlukeneyo kunye nokungcola. Ubuchule bazo bokusebenza kwiindawo ezahlukeneyo buzenza zibe lukhetho oluguquguqukayo kumashishini ahlukeneyo.
Uhlolo olubonakalayo
Iindlela ezininzi zokulinganisa ukuhamba komjelo ovulekileyo, ezifana nee-weirs kunye nee-flumes, zivumela ukuhlolwa ngokubonakalayo. Abaqhubi banokubona ngokuthe ngqo ukuhamba kolwelo phezu kwesakhiwo. Olu fikelelo olubonakalayo lunceda ekuchongeni ngokukhawuleza naziphi na iingxaki ezifana nokuvaleka, iipatheni zokuhamba ezingaqhelekanga, okanye ukutsalwa kwenkunkuma okugqithisileyo. Umzekelo, ukuba kukho ukuqokelelana kwenkunkuma kwi-weir, inokubonwa kwaye isuswe ngokulula, ukuqinisekisa ukulinganiswa ngokuchanekileyo kokuhamba.
Iingxaki
Ukuchaneka Okulinganiselweyo
Iimitha zokuhamba zetshaneli ezivulekileyozihlala zichaneka kancinci xa kuthelekiswa nezinye iipayipi ezivaliweyoii-flowmetersIzinto ezinje ngokutshintshatshintsha kwejiyometri yemisele, uburhabaxa bomphezulu, kunye nobukho bokuxinana kunokuchaphazela ukuchaneka kokulinganisa. Umzekelo, kumjelo wendalo womlambo, imo engaqhelekanga yomlambo kunye nobukho bamatye kunye nezityalo kunokubangela ukuba ukuhamba kwamanzi kungafani, okukhokelela ekufundweni okungachanekanga. Ukuchaneka kweemitha zokuhamba kwamanzi ezivulekileyo kudla ngokuba phakathi kwe-± 5% ukuya kwi-± 10%, okusenokunganeli kwizicelo ezifuna ukulinganiswa kokuhamba kwamanzi okuchanekileyo.
Uvelwano kwiimeko zeNdalo
Ezi flowmeters zinovelwano kakhulu kutshintsho lwendalo. Ukutshintsha kobushushu kunokuchaphazela uxinano lolwelo kunye ne-viscosity, nto leyo enokuchaphazela umlinganiselo wokuhamba. Kwimozulu ebandayo, ukwakheka komkhenkce kwitshaneli kunokuphazamisa ukuhamba kwaye kwenze i-flowmeter ingachaneki. Ukongeza, utshintsho kuxinzelelo lwe-barometric lunokuchaphazela umlinganiselo wesantya sokuhamba, ngakumbi kwiinkqubo apho ukuhamba kukufutshane nomphezulu. Umzekelo, kwi-flowmeter evulekileyo yetshaneli esetyenziswa kwindawo eselunxwemeni, utshintsho kuxinzelelo lomoya ngenxa yezivunguvungu ezisondelayo lunokubangela iimpazamo kwisantya sokuhamba esilinganisiweyo.
Iimfuneko zoLondolozo
Iimitha zokuhamba zetshaneli ezivulekileyozifuna ukulungiswa rhoqo. Izakhiwo ezifana neenduli kunye neeflume zinokuqokelela inkunkuma, ubumdaka, kunye nokukhula kwezinto eziphilayo ngokuhamba kwexesha. Oku kwakheka kunokutshintsha iimpawu zokuhamba kwamanzi kwaye kuchaphazele ukuchaneka komlinganiselo. Umzekelo, kwinkqubo yokuhamba kwamanzi amdaka evulekileyo yesityalo sokucoca amanzi amdaka, udaka kunye nezinye izinto eziqinileyo zinokuhlala eludongeni lweflume, zinciphise indawo enqamlezileyo esebenzayo kwaye zikhokelele ekufundweni kokuhamba kwamanzi ngendlela engafanelekanga. Ukucoca nokuhlola rhoqo kuyimfuneko ukuqinisekisa ukusebenza ngokufanelekileyo, okunokuthatha ixesha elide kwaye kubize kakhulu.
Uhlengahlengiso Oluntsonkothileyo
Ukulinganisa ii-flowmeters zetshaneli evulekileyo kunokuba nzima. Ekubeni iimpawu zokuhamba kwitshaneli evulekileyo zitshintshatshintsha kakhulu, ukulinganisa ngokuchanekileyo i-flowmeter ukuze kujongwe olu tshintsho kunzima. Inkqubo yokulinganisa idla ngokufuna ulwazi oluneenkcukacha ngejiyometri yetshaneli, iimpawu zolwelo, kunye neemeko zokuhamba. Umzekelo, ukuba itshaneli itshintshe kancinci kwimo yayo ngenxa yokukhukuliseka, ukulinganisa i-flowmeter kufuneka kulungiswe ngokufanelekileyo. Ukulinganisa okungalunganga kunokukhokelela kwiimpazamo ezinkulu ekulinganisweni kokuhamba.
Ukuququmbela,ii-flowmeters zetshaneli ezivulekileyoZinezibonelelo ezininzi ezifana nokusebenza kakuhle kweendleko kunye nokufakela okulula, okwenza zifaneleke kwiintlobo ngeentlobo zezicelo. Nangona kunjalo, imida yazo ekuchanekeni, uvakalelo kwindalo esingqongileyo, iimfuno zolondolozo, kunye nokulinganiswa okuntsonkothileyo kufuneka kuqwalaselwe ngononophelo xa kukhethwa isixhobo sokulinganisa ukuhamba kombane kwisicelo esithile.
Ixesha leposi: Februwari-24-2025