Limithara tse fapaneng tsa phallo li sebetsa molemong oa ho ntlafatsa ts'ebetso ea sistimi, ho nepahala le ho ts'epahala ho tšoarella nako e telele. Ho bohlokoa ho sheba li-nuances tsa mofuta o mong le o mong le hore na ba rarolla litlhoko tsa bohlokoa tsa indasteri joang. Fumana mofuta oa phallo meter ho khotsofatsa litlhoko tse itseng.
Mefuta ea Phallo Meters
Meta e phallang ka bongata
Amitha ea phallo ea boima, eo hape e tsejoang e le inertial flow meter, e sebelisetsoa ho lekanya sekhahla sa phallo e boima ea mokelikeli o phallang ka har'a tube. Boima ba mokelikeli o phallang ho feta ntlha e tsitsitseng ka nako ea yuniti bo bitsoa sekhahla sa phallo ea boima. Methara ea phallo ea boima e lekanya boima ho fapana le molumo ka nako ea yuniti (mohlala, lik'hilograma ka motsotsoana) ho romela ka sesebelisoa.
Limithara tsa phallo ea Coriolisli nkuoa e le li-flow metres tse nepahetseng ka ho fetesisa tse ka phetoang hajoale. Li romela mokelikeli ka har'a li-tubes tse sisinyehang 'me li lekola liphetoho tsa lebelo la mokelikeli. Mekelikeli e tsoang ka har'a li-tubes tse sisinyehang e baka ho sotheha hanyenyane kapa ho holofala. Ho sotha le ho holofala ho joalo ho lekana ka kotloloho le sekhahla sa phallo ea bongata. Limithara tsa Coriolis li sebetsa ka bobeliboima le boima ba ho lekanya, e sebetsa ka litsela tse sa tšoaneng litšebelisong tse fapaneng tse kang lik'hemik'hale, oli le khase. Litšoantšiso tsa bona tse hlahelletseng ka nepo le ts'ebeliso e atileng ke mabaka a mantlha a botumo ba bona lits'ebetsong tse rarahaneng tsa indasteri.
Mofuta oa Tšitiso
Differential Pressure (DP) flow metrese ntlafalitsoe bakeng sa ho iphetola ha lintho litlhoko tsa indasteri ea sejoale-joale, e ntse e le khetho e tšepahalang ka ho fetesisa ea ho lekola phallo le ho lekanya. Phapang ea khatello e lekanngoa motheong oa molao-motheo oa hore kamano e itseng pakeng tsa phapang ea khatello e hlahisoang ha mokelikeli o phalla ka lisebelisoa tsa throttling le litekanyetso tsa phallo. Sesebelisoa sa throttling ke ntho ea lehae ea contraction e kentsoeng pompong. Tse sebelisoang haholo ke tselipoleiti tsa orifice, li-nozzlesleli-tubes tsa venturi,e sebedisoang haholo ho metha le taolo ya tshebetso ya indasteri.
A mitha ea sebaka se feto-fetohange sebetsa ka ho lekanya phallo ea mokelikeli o tšelang sebaka sa karolo ea sesebelisoa ho fapana ho latela phallo. Phello e itseng e ka lekanyetsoang e bontša sekhahla. Rotameter, mohlala oa meter ea sebaka se feto-fetohang, e fumaneha bakeng sa mefuta e mengata ea metsi 'me e sebelisoa hangata ka metsi kapa moea. Mohlala o mong ke orifice ea sebaka se feto-fetohang, moo phallo ea mokelikeli o kenang ka har'a sekoti o tla khelosa plunger e tletseng selemo.
Inferential Flowmeter
Theturbine flowmetere fetola ketso ea mochini hore e be lebelo le baloang ke basebelisi. joalo ka gpm, lpm, joalo-joalo. Lebili la turbine le behiloe tseleng ea mokelikeli e le hore phallo eohle e e potolohang. Ebe mokelikeli o phallang o kenella holim'a mahare a turbine, o hlahisa matla holim'a lehare ebe o sutumelletsa rotor hore e tsamaee. Lebelo la turbine le lekana le lebelo la mokelikeli ha lebelo le tsitsitseng la ho potoloha le fihla.
Phallo ea motlakase ea motlakase
Themagnetic flowmeter, e tsejoang hape e le "mag meter"kapa"electromag", sebelisa tšimo ea megnetic e sebelisoang ho tube ea metering, e bakang phapang e ka 'nang ea e-ba teng molemong oa ho phalla velocity perpendicular ho melapo ea flux. sekhahla sa phallo se ka khethoa ke matla a sephetho a lekantsoeng bakeng sa liindasteri tse amanang le maro a litšila, a senyang kapa a senyang ho nepahala le ho tšoarella,limithara tsa phallo ea makenetehangata li sebelisoa ho hloekisa metsi, ho sebetsa ka lik'hemik'hale, hammoho le tlhahiso ea lijo le lino.
Anultrasonic flow metere lekanya lebelo la metsi ka ultrasound ho bala phallo ea molumo. Methara ea phallo e khona ho lekanya lebelo le tloaelehileng tseleng ea lebone le hlahisitsoeng la ultrasound ka li-ultrasound transduces. Bala phapang ea nako ea ho tsamaea lipakeng tsa maqhubu a ultrasound ho ea tlase kapa khahlano le tsela eo e phallang ka eona kapa u lekanye nako ea ho tsamaea u itšetlehile ka Doppler Effect. Ntle le thepa ea acoustic ea mokelikeli, mocheso, letsoalo, viscosity le likaroloana tse emisitsoeng le tsona ke lintlha tse amangultra flow meter.
Amitha ea phallo ea vortexe sebetsa ho latela molao-motheo oa "von Kármán vortex", e lekola sekhahla sa phallo ea mokelikeli ka ho lekanya maqhubu a maqhubu. Ka kakaretso, maqhubu a li-vortices a lekana ka ho toba le lebelo la ho phalla. Karolo ea piezoelectric ka har'a detector e hlahisa lets'oao la tefiso e fapaneng le maqhubu a tšoanang le a vortex. Ebe letšoao le joalo le isoa ho totalizer e bohlale ea phallo bakeng sa ts'ebetso e tsoelang pele.
Li-flowmeters tsa mechine
Metha e nepahetseng ea ho falla e lekanya bophahamo ba maro a phallang ka har'a sejana joalo ka bakete kapa stopwatch. Sekhahla sa phallo se ka baloa ka karolelano ea molumo le nako. Ho tlatsa le ho tšolla linkho ho tsoela pele ho hlokahala molemong oa ho metha ho tsoelang pele. Limithara tsa piston, limithara tsa oval gear le nutating disk meter kaofela ke mehlala ea limithara tse ntle tsa phallo.
Ho tloha ho li-flowmeters tsa mochini tse feto-fetohang ho isa ho Coriolis e nepahetseng haholo le limithara tsa ultrasonic, mofuta o mong le o mong o etselitsoe ho fihlela litlhoko tse ikhethang tsa indasteri. Hore na o hloka ho sebetsana le likhase, maro, kapa mouoane, ho na le tharollo bakeng sa hau. Nka mohato o latelang oa ho ntlafatsa ts'ebetso ea sistimi ea hau ka ho batla tataiso ea litsebi.Iteanye le ronakajeno bakeng sa qotso ea mahala, e sa tlameheng, 'me re u thuse ho fumana meter e phethahetseng bakeng sa ts'ebetso ea hau!
Nako ea poso: Oct-15-2024
