Mukuyerwa kwekuyerera kwemvura mumaindasitiri, uko kururama, kuvimbika, uye kuenderana nemvura yakaoma zvisingakurukurwi, magiya anoyerera mvura anoonekwa semhinduro inovimbwa nayo. Kusiyana nema ultrasonic kana ma electromagnetic flowmeters anoshanda zvakanaka mu conductive kana non-viscous media, magiya anoyerera mvura akagadzirwa kuti abudirire mukushandiswa kwemvura ine viscous liquids—kubva kumafuta ekuzora uye hydraulic fluids kusvika kuma syrups, pendi, uye makemikari anowedzera. Dhizaini yavo yekuchinja-chinja inoita kuti kuyerwa kwacho kuenderane, kwakanyatsojeka kunyangwe pakuyerera kwakaderera, zvichiita kuti zvive zvakakosha mumaindasitiri akasiyana kubva pakugadzira mota kusvika pakugadzira chikafu.
Pakati pekushanda kwegear flowmeter pane musimboti wayo we positive-displacement (PD), nzira iri nyore asi inoshanda inoverenga zvakananga huwandu hwemvura. Pakati pegear pane magiya maviri kana anopfuura akabatana (anowanzogadzirwa nesimbi isingatsvedzeri, PTFE, kana purasitiki yakaoma) akaiswa mukamuri yakagadzirwa nemazvo. Sezvo mvura inopinda mukamuri, inozadza mipata iri pakati pemazino egear, zvichimanikidza magiya kuti atenderere. Kutenderera kwega kwega kwemagiya kunobvisa huwandu hwemvura hwakagadzika, hunozivikanwa—hunonzi "meter factor"—hunozotumirwa kune sensor (mechanical kana electronic) inoshandura kufamba kwesero kuita chiratidzo chinoyerwa. Chiratidzo ichi chinogadziriswa kuti chiverenge huwandu hwese kana huwandu hwemvura inoyerera pakarepo, pasina kuvimba zvakanyanya nezvinhu zvekunze zvakaita se fluid conductivity kana flow profile.
Chimwe chezvakanakira zvikuru zvemagiya ekufambisa mvura ndiko kurongeka kwawo kwakanyanya, kunyangwe pakushandiswa kwakasimba uye kusingafambi zvakanaka. Magiya mazhinji ekufambisa mvura muindasitiri anowana kurongeka kwe±0.1% kusvika ±0.5% yehuwandu hwakayerwa, zvichipfuura mamwe marudzi ekufambisa mvura muzviitiko apo kurongeka kwakakosha. Semuenzaniso, mumitsetse yekubatanidza mota, magiya ekufambisa mvura anoshandiswa kuyera huwandu chaihwo hwemafuta ekuzora anopinzwa muzvikamu zveinjini—mafuta mashoma anogona kukanganisa kupfeka nguva isati yakwana, nepo kuwanda kwazvo kuchiparadza zviwanikwa uye kunogona kukonzera kupisa zvakanyanya. Kugona kwemita kuchengetedza kurongeka munzvimbo yakakura yekubvisa mvura (kubva pa1 cP kusvika 1,000,000 cP kana kupfuura) kunoita kuti ive yakakodzera mabasa akadaro, sezvo shanduko dzekuwedzera mvura dzisina simba guru pakufambiswa kwemagiya kwakatarwa.
Chimwe chinhu chakakosha ndechekuti magadzirirwo adzo akasimba uye zvinodiwa zvishoma zvekuchengetedza. Magiya akabatana nekamuri zvakagadzirwa nezvinhu zvinogara kwenguva refu zvinodzivirira ngura, kukwesha, uye kukuvara kwemakemikari—zvakakosha pakubata mvura inokasharara senge zvinonyungudutsa zveindasitiri kana masirapu emhando yepamusoro. Kusiyana nema turbine flowmeters, ane zvikamu zvinofamba zvakapfava zvinogona kupera, magiya flowmeters ane chimiro chakareruka, chidiki chine zvikamu zvishoma zvinogona kutadza kushanda. Kugara kwenguva refu uku kunoreva hupenyu hurefu hwebasa (kazhinji makore mashanu kusvika gumi kana ukashandiswa nemazvo) uye nguva shoma yekushanda yekugadzirisa. Pamusoro pezvo, magiya mazhinji emazuva ano flowmeters ane magadzirirwo asina chisimbiso kana magineti anobatanidza, zvichibvisa njodzi yekubuda kwemvura—chinobatsira zvikuru pakushandisa zvinosanganisira mvura ine chepfu kana yakakosha.
Michina yemagetsi inobudirirawo mukushanda kwakasiyana-siyana mumaindasitiri, ichichinjika kumarudzi akasiyana-siyana emvura uye mamiriro ekushanda. Muchikamu chezvekudya nezvinwiwa, inoshandiswa kuyera kufamba kwezvinhu zvinonamira zvakaita sechokoreti, huchi, kana domasi paste, nezvinhu zvemhando yepamusoro (zvakadai se316L stainless steel uye FDA-approved elastomers) zvichiona kuti zvinodiwa pakuchengetedza zvinoenderana nemitemo yekuchengetedza. Muindasitiri yemafuta negesi, vanoongorora kufamba kwemvura inonamira mumidziyo yekuboorera nemafuta mumacompressor epaipi, uko kuramba kwavo kumanikidzwa kwakanyanya (kusvika ku10,000 psi kana kupfuura) uye tembiricha (kubva -40°C kusvika 200°C) kunokosha. Kunyangwe muindasitiri yemishonga, michina yemagetsi inotarisa kufamba kwemvura ine simba ine simba mukuyerwa kwemishonga inonamira nezvimwe zvinowedzera, uko kururama uye kusabereka zvakakosha.
Kubatanidzwa nehurongwa hwekudzora maindasitiri ndeimwe simba remagiya emazuva ano ekufambisa magetsi. Mamodheru mazhinji anouya aine madhijitari anobuda (akadai seRS485/Modbus, HART, kana masaini ekurova) kana maanalog outputs (4–20mA), zvichibvumira kubatana zvakanaka kune masisitimu eSCADA, data loggers, kana PLCs. Izvi zvinogonesa kutarisa mafambiro emvura panguva chaiyo, kugadzirisa kure, uye kudzora otomatiki maitiro—semuenzaniso, kugadzirisa kuyerera kwependi mufekitori yekugadzira kuti ive nechokwadi chekuti coating coating yakakora nguva dzose. Mamwe mamodheru epamusoro anosanganisirawo maficha ekuongorora, akadai sekuona kupfeka kwemagiya kana fluid contamination alerts, izvo zvinobatsira vanoshanda kugadzirisa matambudziko vasati vakonzera kukundikana kunodhura.
Pasinei nezvakanakira zvakawanda, magiya ekuyerera kwemvura haashandiswi pasi rose. Haakodzeri zvakanyanya mvura ine zvidimbu zvakakura (zvinogona kuvharira magiya) kana mvura inoputika zvakanyanya (izvo zvinogona kukonzera kuvhuvhuta kwemvura). Zvisinei, kune mvura zhinji dzakasimba, dzakachena, kana dzakasvibiswa zvishoma, dzinoramba dziri sarudzo huru. Kugona kwadzo kusanganisa kururama kwakanyanya, kugara kwenguva refu, uye kushanduka-shanduka kunoita kuti dzive dzinokosha pakuyera kuyerera kwemvura mumaindasitiri, kutsigira kushanda zvakanaka, kuchengetedza mari, uye kutevedzera mitemo mumashandisirwo akawanda.
Muchidimbu, magiya anoyerera mvura haasi maturusi ekuyera chete—zvinhu zvakakosha zvinovimbisa kururama uye kuvimbika mumaindasitiri uko kudzora mvura kunokanganisa zvakananga kunaka kwechigadzirwa uye kuchengetedzeka kwekushanda. Sezvo tekinoroji ichifambira mberi, dhizaini yavo iri kuramba ichichinja, nekuvandudzwa kwezvinhu, tekinoroji ye sensor, uye kubatana zvichiwedzera kushanda kwavo. Kune mabhizinesi ari kutsvaga mhinduro yekuyera kuyerera inogona kubata mvura inonamira uye mamiriro ekuyerera kwemvura zvishoma nekunyatsojeka, giya rinoyerera richiri sarudzo isingakundike.
Nguva yekutumira: Zvita-03-2025