Tekanyo ea phalloke sehokelo sa mantlha phepelong ea metsi ea masepala, kalafo ea metsi a litšila, merafo le tlhahiso ea lik'hemik'hale. Limithara tsa phallo tse tloaelehileng tse ka hare tse kang mefuta ea electromagnetic le turbine li tobana le mathata a totobetseng ha ho lekanngoa metsi a nang le lintho tse tiileng tse emisitsoeng, seretse kapa lipululana tsa moea: li-electrode tsa kahare lia tsofala habonolo, li-impeller lia koaloa, 'me ho seha liphaephe le ho koaloa ha tlhahiso ke ntho ea bohlokoa nakong ea ho kenngoa. Semithara sa phallo sa ultrasonic sa Doppler se clamp-on se rarolla lintlha tsena tsa bohloko ka ho phethahetseng ka ho sebelisa ho kenya kantle ho sa hlaseleng lePhello ea Dopplerkhopolo-taba, e leng sesebelisoa se khethiloeng sa ho lekanya bakeng sa liphaephe tse rarahaneng tsa metsi a litšila le lerōle lefatšeng ka bophara.
Molao-motheo oa mantlha oa ts'ebetso ea li-clamp-on Doppler flow metres o tsoa ho Doppler Effect e fumanoeng ke setsebi sa fisiks Christian Doppler. Lisebelisoa li entsoe ka yuniti ea ponts'o ea moamoheli le para ea li-transducer tsa ultrasonic tsa kantle tse khomaretsoeng leboteng la phaephe ea kantle ka li-clamp. Transducer e le 'ngoe e ntša mahlaseli a ultrasonic a maqhubu a phahameng ka mokhoa o sa otloloheng ka har'a mokelikeli o ka hare ho phaephe. Kaha tekanyo ea Doppler e hloka li-reflector tsa acoustic, lets'oao la ultrasound le tlola likaroloana tse tiileng tse emisitsoeng kapa lipululana tse nyane tsa moea tse tsamaeang ka tsela e tsamaellanang le phallo ea mokelikeli. Motsamao o amanang pakeng tsa li-reflector le li-sensor o etsa phetoho ea maqhubu a lekantsoeng pakeng tsa maqhubu a molumo a fetisoang le a amoheloang. Microprocessor e hahiloeng kahare e bala lebelo la mokelikeli la nako ea sebele ho latela phapang ea maqhubu, ebe e kopanya bophara ba kantle ba phaephe ea ho kenya, botenya ba lebota le liparamente tsa thepa ho hlahisa lebelo la phallo ea hang-hang le phallo ea volumetric e bokellaneng.
Molemo o hlahelletseng oa mithara ena ke moralo oa eona o sa keneleng ka botlalo. Ho fapana le lisebelisoa tse ka hare, li-transducer ha li kopane le mecha ea phatlalatso e lekantsoeng. Basebelisi ba ka qeta ho kenya ka metsotso e 10 ntle le ho khaola liphaephe, ho ntša metsi kapa ho emisa ts'ebetso ea marang-rang a fektheri le metsi, e leng se fokotsang haholo litšenyehelo tsa basebetsi ba kaho le nako ea ho phomola. Ha ho na tahlehelo ea khatello phaepheng, ha ho na kotsi ea ho lutla ho mahareng, 'me ha ho na likarolo tse kolobisitsoeng ho bola kapa ho silafala. Bakeng sa liphaephe tse bophara bo boholo tse kaholimo ho DN500, li-clamp-on Doppler metres li na le litšenyehelo tse tlase haholo tsa theko le ho kenya ho feta tsa electromagnetic.limithara tsa phallo, e bonts'a melemo e ikhethang ea moruo liphaepheng tse kholo tsa lifeme tsa metsi le litsamaisong tsa metsi tse potolohang liindastering.
Sesebelisoa sena se na le bokgoni bo matla ba ho ikamahanya le maemo bo mahareng le diparamente tse pharaletseng tsa botekgeniki. Se lekanya ka botsitso metsi a nang le dikarolwana tse fanyehilweng tse fetang 100 mg/L kapa dipululana tse nyane, tse kwahelang dikgwerekgwere, seretse se kentsweng, pulp ya merafo, jwala bo tswakilweng ka dikhemikhale le metsi a ditshila a indasteri a nang le moya. Se lekana le thepa yohle e tlwaelehileng ya diphaephe ho kenyeletswa tshepe ya khabone, tshepe e sa ruseng, tshepe e lahletsweng, PVC le fiberglass, e tshehetsang bophara ba diphaephe ho tloha ho DN40 ho isa ho DN3000. Mehlala ya sejwalejwale e fana ka dikarolelano tsa ho kgutlela tlase tse pharaletseng ho tloha ho R250 ho isa ho R500, tse kgonang ho hapa phallo e nyane e tlase le phallo e phahameng ntle le disebediswa tsa ho chencha. Dikgetho tse ruileng tsa tlhahiso ya telemetry tse kang LoRaWAN, NB-IoT le GPRS di kopantswe bakeng sa ho kenya data hole, ho bapisa metering ya dibaka tsa metsi a metsi a bohlale a DMA, ho lekola ho dutla ha diphaephe le ditlhoko tsa taolo ya seteishene sa metsi a ditshila tse sa hlokomelweng.
Litšenyehelo tse tlase tsa tlhokomelo ke ntlha e 'ngoe ea tlholisano. Ka ho se be le likarolo tse tsamaeang ka hare, ho hloekisa khafetsa kapa ho nkela electrode sebaka ha ho hlokahale, ho fapana le limithara tsa electromagnetic tse hlokang tlhokomelo likhoeli tse ling le tse ling tse 'maloa liphaepheng tsa seretse. Basebelisi ba hloka feela ho hlahloba boemo ba ho lokisa transducer le ho tlatsa moemeli oa ho kopanya oa ultrasonic hang ka likhoeli tse ling le tse ling tse tšeletseng. Mefuta ea Doppler e nkehang habobebe e boetse e fumaneha bakeng sa tlhahlobo ea phallo ea nakoana, tlhahlobo ea katleho ea pompo le tlhahlobo ea liphaephe ntle le ho kenngoa ka ho sa feleng.
Ho sa tsotellehe boholo ba ts'ebeliso ea eona, basebelisi ba tlameha ho latela litekanyetso tsa khetho:Limithara tsa DopplerHa lia lokela metsi a hloekileng haholo a nang le likaroloana tse sa lekaneng ho bonahatsa matšoao a ultrasonic, moo li-meter tsa ultrasound tse nang le clamp-on tsa transit-time e leng khetho e molemo. Ba kenyang ba lokela ho boloka likarolo tse lekaneng tsa liphaephe tse otlolohileng pele le ka mor'a li-sensor, ba qoba maemo a haufi le litsoe, li-valve le lipompo ho netefatsa tšimo e tsitsitseng ea phallo ea mokelikeli le ho nepahala ho tsitsitseng ha tekanyo.
Mehleng ea tsamaiso e bohlale ea metsi le IoT ea indasteri,Methapo ea phallo ea ultrasonic ea Doppler e kentsoeng ka clamp-ontlatsa sekheo sa tlhokomelo ea phallo e theko e tlase, e sa emeng bakeng sa liphaephe tsa metsi tse silafetseng. Motsoako oa eona oa ho kenngoa habonolo, tšenyo ea liphaephe ha e eo, bophelo bo bolelele ba tšebeletso le mesebetsi e fapaneng ea puisano e hole e etsa hore e be sesebelisoa sa ho lekanya se ke keng sa nkeloa sebaka bakeng sa marang-rang a liphaephe tsa metsi tsa masepala, lifeme tsa kalafo ea metsi a litšila tikolohong le liindasteri tsa merafo ea mehloli. Ha ntlafatso ea liphaephe le kaho ea marang-rang a metsi a dijithale li ntse li atoloha lefatšeng ka bophara, tlhoko ea 'maraka ea limithara tsa phallo ea Doppler tse thibang e tla boloka kholo e tsitsitseng lilemong tse leshome tse tlang.
Nako ea poso: Phupu-20-2026