Smart Electromagnetic Flowmeter

Mwachidule

DWP mndandanda payipi mtundu wanzeru electromagnetic flowmeter ndi maginito kupatsidwa ulemu flowmeter, opangidwa molingana ndi JB/T9248-999 "Electromagnetic Flowmeter", oyenera otaya mawerengedwe a conductive madzi ndi madutsidwe wamkulu kuposa 5us/cm;m'mimba mwake mwadzina ndi 5 mpaka 3000, ndi mndandanda wazinthu zamagetsi zamagetsi zomwe zimaphatikizira luntha, kuphatikiza kochepa komanso kopepuka, magwiridwe antchito ambiri, kulondola kwambiri komanso kudalirika kwambiri.Amakhala ndi magawo awiri: sensor ndi smart converter.

DWP electromagnetic flowmeter ili ndi ntchito zosiyanasiyana.Ikhoza kutulutsa chizindikiro chamakono (4-20mA) mogwirizana ndi ndondomeko yolankhulirana ya HART pamene ikukumana ndi kuyang'anira ndi kuwonetsera pa malo, kujambula, kusintha, ndi kulamulira;itha kugwiritsidwa ntchito kwambiri m'makampani opanga mankhwala, kuteteza chilengedwe, komanso mafakitale a nsalu., zitsulo, migodi, mankhwala, papermaking, madzi, chakudya, shuga, moŵa ndi mafakitale ena otaya madzi muyeso wa conductive TV mu ndondomeko mapaipi;kuwonjezera kuyeza ambiri conductive madzi, malinga ndi zosowa zapadera za owerenga, akhoza kuyeza conductive madzi olimba awiri gawo Flow, otaya mkulu mamasukidwe akayendedwe zakumwa ndi zakumwa monga mchere, zidulo amphamvu, ndi alkalis amphamvu.

Zomangamanga

(1) Sensor:

Sensa imapangidwa makamaka ndi catheter yoyezera, electrode yoyezera, koyilo yosangalatsa, pakati pachitsulo, maginito ndi nyumba.

Njira yoyezera: Imapangidwa ndi ngalande yachitsulo chosapanga dzimbiri, mizere yolumikizira ndi chingwe cholumikizira, ndipo ndi chonyamulira cha kuyeza kwamadzi komwe kumayezedwa.

Kuyeza maelekitirodi: awiri maelekitirodi anaika pa khoma lamkati ngalande kuyeza, perpendicular kwa axial otaya malangizo, kuti kuyeza madzi amapanga chizindikiro.

Koyilo yosangalatsa: Kukokera kumtunda ndi kumunsi komwe kumatulutsa mphamvu ya maginito mu catheter yoyezera.

Pakatikati pachitsulo ndi maginito: Mphamvu ya maginito yopangidwa ndi koyilo yosangalatsa imalowetsedwa mumadzimadzi ndikupanga maginito.

Chipolopolo: Kupaka kunja kwa chida.

(2) Converter:

Ndi mita yachiwiri yanzeru, yomwe imakulitsa chizindikiro choyenda ndikuchiwerengera ndi kompyuta-chip imodzi kuti iwonetse kuthamanga ndi kuchuluka kwachulukidwe, ndipo imatha kutulutsa ma pulse, analogi panopa ndi zizindikiro zina zoyezera kapena kuwongolera kuyenda kwamadzimadzi.

(3) Fomu yophatikiza zinthu:

Amagawidwa m'mitundu iwiri: mtundu wophatikizika ndi mtundu wogawanika.

Mtundu wophatikizika: Sensa ndi chosinthira zimayikidwa mugawo limodzi.

Mtundu wogawanika: Sensa ndi chosinthira zimayikidwa padera, ndipo kayendedwe ka metering kamene kamapangidwa ndi kulumikiza zingwe.Kuti akwaniritse zofunikira za kuyeza kosiyanasiyana kwa media, zida zomangira ndi ma electrode a sensor zitha kukhala ndi zosankha zambiri.

Mfundo yogwira ntchito

Mfundo yogwiritsira ntchito electromagnetic flowmeter imachokera ku lamulo la Faraday la electromagnetic induction.Ndiko kuti, pamene conductive madzi akuyenda kudzera mu electromagnetic flowmeter, ndi kuchititsa electromotive mphamvu adzakhala kwaiye mu kondakitala.Mphamvu yamagetsi yopangidwa ndi electromotive imayenderana ndi kuthamanga kwamadzimadzi oyendetsa, mphamvu ya maginito, komanso m'lifupi mwa kondakitala (m'mimba mwake wamkati mwa flowmeter), monga momwe tawonera pachithunzichi.

Mphamvu yamagetsi yotchedwa electromotive imadziwika ndi ma electrodes pakhoma la flowmeter, ndipo kuthamanga kwa magazi kungapezeke kupyolera mu kuwerengera.

Ma electromotive force equation ochititsa chidwi ndi: E=KBVD

Mu chilinganizo: E anachititsa kuthekera;D kuyeza chubu mkati mwake;

B maginito kupatsidwa mphamvu;V pafupifupi kuthamanga kwapakati;

K ndi coefficient yokhudzana ndi kugawa kwa maginito ndi kutalika kwa axial.