Choyezera kuyenda kwa magetsi pogwiritsa ntchito maginito (magnetic flow meter) chimayesa kuchuluka kwa madzi oyendetsedwa ndi maginito pogwiritsa ntchito lamulo la Faraday la Electromagnetic Induction. Mosiyana ndi makina oyendera magetsi, sichimayendetsa zinthu ndipo sichimalepheretsa chilichonse mkati mwa payipi, zomwe zimapangitsa kuti chigwiritsidwe ntchito kwambiri pamadzi, madzi otayira, mankhwala, matope, ndi zina zoyendetsera madzi.
Mfundo yaikulu ndi yakuti madzi oyendetsera mpweya akamayenda kudzera mu mphamvu ya maginito, amapanga magetsi ochepa. Choyezera kuyenda kwa magetsi chamagetsi chimazindikira magetsi awa ndikusandutsa liwiro la kuyenda ndi mtengo wa kuyenda kwa madzi.
Mfundo Yogwirira Ntchito ya Chiyeso Choyendera Maginito
Njira yoyezera imaphatikizapo zigawo zitatu zazikulu:
1. Kupanga maginito
2. Kuzindikira mphamvu ya magetsi pogwiritsa ntchito ma electrode
3. Kuwerengera kwa kayendedwe ka madzi pogwiritsa ntchito chosinthira
1. Kupanga Mphamvu ya Maginito Mkati mwa Chubu Choyezera
Mkati mwa sensa yoyezera kuchuluka kwa magetsi, ma coil amagetsi amapanga mphamvu ya maginito kudutsa chubu choyezera.
Chojambulira cha sensor chimachotsa madziwo m'thupi la chitoliro chachitsulo pogwiritsa ntchito magetsi, pomwe ma electrode awiri amayikidwa mbali zosiyana za chubu choyezera kuti azindikire mphamvu yamagetsi yopangidwa.
Ngati palibe madzi otuluka, palibe kuyenda kwa tinthu toyendetsa magetsi kudzera mu mphamvu ya maginito, kotero palibe magetsi oyezeka omwe amapangidwa.
2. Kupanga Chizindikiro Chamagetsi Kuchokera ku Kuyenda kwa Madzi
Madzi oyendetsera mpweya akamayenda kudzera mu mphamvu ya maginito, tinthu tating'onoting'ono tomwe tili mkati mwa madziwo timadutsa m'mizere ya mphamvu ya maginito.
Malinga ndi lamulo la Faraday:
* Madzi oyenda otulutsa mpweya amagwira ntchito ngati kondakitala.
* Mphamvu ya maginito imayambitsa chizindikiro cha magetsi.
* Voltage imafanana ndi liwiro la madzi.
Ma electrode omwe amaikidwa mu sensa amazindikira chizindikiro cha voltage ichi.
Madzi akamayenda mofulumira, mphamvu yamagetsi yomwe imayambitsa imakhala yokwera kwambiri.
3. Kusintha Chizindikiro kukhala Chiwongola dzanja
Chosinthira chimalandira chizindikiro chamagetsi chochepa kwambiri kuchokera ku ma electrode ndikuchikonza kudzera m'mabwalo amagetsi.
Wotembenuza amawerengera:
* Liwiro la kuyenda
* Kuthamanga kwa madzi nthawi yomweyo
* Chiwerengero chonse cha voliyumu
Zotsatira zomaliza zitha kuwonetsedwa kwanuko kapena kutumizidwa kudzera mu njira zolumikizirana monga:
* 4–20 mA
* RS485 Modbus
* HART
* Kutulutsa kwa pulse
* Ma protocol olumikizirana a digito
Kodi Ndi Zinthu Ziti Zomwe Zimakhudza Kuyeza kwa Kuyenda kwa Magetsi?
Ngakhale kuti zoyezera kuyenda kwa magetsi zamagetsi ndizodalirika kwambiri, zinthu zingapo ndizofunikira kuti muyeze molondola.
1. Kuyendetsa kwa Madzi
Madziwo ayenera kukhala ndi mphamvu yokwanira yamagetsi kuti apange chizindikiro choyezeka.
Chofunikira chachizolowezi:
Kuyendetsa mphamvu ≥ 5 μS/cm
Zakumwa zoyenera ndi izi:
* Madzi
* Madzi Otayira
* Mayankho a mankhwala
* Dothi losalala
* Zamkati
Sikoyenera:
* Mafuta
* Mafuta
* Petroli
* Zakumwa zina zopanda mphamvu yoyendetsa mpweya
2. Chitoliro Chiyenera Kudzaza Konse
Chitoliro choyezera chiyenera kudzazidwa ndi madzi nthawi zonse.
Ngati chitoliro chilibe kanthu pang'ono:
* Ma electrode sangakhudze madzi mokwanira.
* Chizindikirocho chimakhala chosakhazikika.
* Kulondola kwa muyeso kumachepa.
Pachifukwa ichi, pewani kuyika ma electromagnetic flow mita:
* Pamalo okwera kwambiri pa payipi.
* Pamaso pa malo otulutsira madzi aulere.
* M'malo omwe mpweya ungaunjikane.
3. Kukhazikitsa Pansi Koyenera
Popeza chizindikiro choyezera ndi chaching'ono kwambiri, kuyika pansi ndikofunikira.
Kukhazikitsa nthaka moyenera kumathandiza:
* Chotsani kusokoneza magetsi.
* Khazikitsani mfundo ya zero.
* Sinthani kudalirika kwa muyeso.
Mphete zomangira pansi zingafunike pa:
* Mapaipi apulasitiki.
* Mapaipi okhala ndi rabara.
* Mapaipi osayendetsa magetsi.
Chifukwa chiyani choyezera kuthamanga kwa electromagnetic sichitaya mphamvu?
Ubwino umodzi waukulu wa ma electromagnetic flow meters ndi wakuti palibe zinthu zosuntha kapena zotchinga zamkati.
M'mimba mwake mwa sensa muli pafupifupi wofanana ndi m'mimba mwake mwa payipi, zomwe zimathandiza kuti madziwo adutse momasuka.
Ubwino wake ndi monga:
* Palibe kutayika kwina kwa kuthamanga kwa magazi.
* Yoyenera mapaipi akuluakulu.
* Zofunikira zochepa zosamalira.
* Kuchita bwino ndi zakumwa zokhala ndi zinthu zolimba zomwe zimapachikidwa.
Izi zimapangitsa kuti ma electromagnetic flow mita akhale oyenera kwambiri:
* Malo oyeretsera madzi otayira.
* Njira zogawira madzi.
* Ntchito zogwiritsa ntchito migodi.
* Makampani opanga mapepala ndi zamkati.
Kodi Meter Yoyendera Magetsi Yoyezera Kuyenda kwa Reverse?
Inde.
Ma electromagnetic flow meter ambiri amatha kuyeza mayendedwe a mbali ziwiri.
Kutengera ndi kasinthidwe, mita ikhoza:
* Onetsani kayendedwe ka patsogolo.
* Onetsani kayendedwe ka kubwerera m'mbuyo.
* Werengani kuchuluka kwa madzi m'njira zosiyanasiyana.
Mbali imeneyi ndi yothandiza pa ntchito zomwe njira yoyendetsera zinthu ingasinthe, monga:
* Machitidwe oyendera madzi.
* Kuyesa kwa pompu.
* Mapaipi opangira zinthu zamafakitale.
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Ubwino wa Ma Electromagnetic Flow Meters
Ma electromagnetic flow meter amapereka zabwino zingapo:
Kulondola Kwambiri
Akhoza kupereka muyeso wokhazikika komanso wolondola akayikidwa bwino.
Palibe Zigawo Zosuntha
Palibe ma impeller kapena zida zamakina zomwe zingawonongeke.
Yoyenera Madzi Odetsedwa
Amatha kuyeza zakumwa zomwe zili ndi:
* Zolimba zokhazikika
* Ulusi
* Tinthu ta matope
Mitundu Yonse Yogwiritsira Ntchito
Ntchito zodziwika bwino zikuphatikizapo:
* Kupereka madzi kwa boma
* Kukonza madzi otayira
* Kukonza mankhwala
* Chakudya ndi zakumwa
* Kukumba migodi
* Kuthirira
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Zolepheretsa za Ma Electromagnetic Flow Meters
Ngakhale ubwino wake, ma electromagnetic flow meter ali ndi zofooka zina:
Sitingathe Kuyeza Zakumwa Zosagwiritsa Ntchito Mpweya
Zakumwa monga mafuta ndi mafuta sizipanga zizindikiro zamagetsi zokwanira.
Amafuna Kukhazikitsa Koyenera
Kukhazikitsa kolakwika, nthaka yosalimba, kapena thovu la mpweya kungakhudze kukhazikika kwa muyeso.
Amafuna Zoulutsira Mauthenga
Kuchuluka kwa madzi m'thupi kuyenera kufufuzidwa musanasankhe.
Choyezera kuyenda kwa magetsi pogwiritsa ntchito Faraday's Law of Electromagnetic Induction. Madzi oyendetsera magetsi akamadutsa mu mphamvu ya maginito, amapanga chizindikiro cha magetsi chomwe chimazindikirika ndi ma electrode. Chosinthira magetsi chimagwiritsa ntchito chizindikirochi ndikuwerengera liwiro la kuyenda kwa magetsi ndi kuchuluka kwa madzi.
Popeza ilibe zida zosuntha, sizifunikira kukonza kwambiri, komanso imagwira ntchito bwino kwambiri ndi zakumwa zoyendetsa, choyezera kuyenda kwa magetsi chamagetsi chimagwiritsidwa ntchito kwambiri pa ntchito zamadzi, madzi otayira, mankhwala, ndi mafakitale.
Kuti muyeze bwino, nthawi zonse onetsetsani kuti madzi akuyenda bwino, chitolirocho chili chodzaza bwino, ndipo pansi pake pamakhala poyenera.
Nthawi yotumizira: Julayi-27-2026