Kusankha Ma Electrode a Ma Electromagnetic Flow Meters

Ma electromagnetic flow meter (omwe amadziwikanso kuti mag meter) amagwiritsidwa ntchito kwambiri poyesa kuyenda kwa madzi oyendetsera mpweya m'mafakitale. Amagwira ntchito motsatira lamulo la Faraday la electromagnetic induction ndipo alibe ziwalo zosuntha, zomwe zimapangitsa kuti zikhale zolondola kwambiri komanso zodalirika pa ntchito zosiyanasiyana zoyezera kuyenda kwa mpweya. Gawo limodzi lofunika kwambiri la ma electromagnetic flow meter ndi electrode, yomwe imagwira ntchito yofunika kwambiri pakuyezera. Kusankha zinthu za electrode ndi kasinthidwe kake kumadalira zinthu zingapo, monga madzi omwe akuyesedwa, momwe chilengedwe chilili, komanso kulondola komwe kukufunika poyezera.

Mfundo Zofunika Kwambiri Zokhudza Kusankha Ma Electrode

1. Kuyendetsa kwa Madzi

Ma electromagnetic flow meter amafuna kuti madzi aziyendetsa magetsi kuti ayesere bwino. Ma electrode amazindikira mphamvu yamagetsi yomwe imapangidwa madzi akamadutsa mu mphamvu ya maginito ya flow meter. Chifukwa chake, kusankha zinthu zoyenera za electrode ndikofunikira kuti zitsimikizire kuti miyezo yolondola ndi yolondola, makamaka ngati mphamvu ya madzi ndi yotsika kapena yokwera.

2. Zipangizo za Electrode

Zipangizo zomwe zimagwiritsidwa ntchito pa ma electrode ziyenera kugwirizana ndi mankhwala a madzi kuti zitsimikizire kulimba komanso kudalirika. Zipangizo zodziwika bwino za ma electrode ndi izi:

• Chitsulo Chosapanga Dzira (316L):Chimodzi mwa zipangizo zomwe zimagwiritsidwa ntchito kwambiri popanga ma electrode, chitsulo chosapanga dzimbiri chimapereka kukana dzimbiri kwabwino ndipo chimayenera kugwiritsidwa ntchito pamitundu yosiyanasiyana ya zakumwa, kuphatikizapo madzi, slurry, ndi mankhwala ambiri.

• Hastelloy (HC276):Hastelloy ndi aloyi yosagwira dzimbiri, yomwe imadziwika bwino chifukwa cha mphamvu yake yopirira mankhwala amphamvu komanso kutentha kwambiri.HC276nthawi zambiri imagwiritsidwa ntchito m'mafakitale monga mankhwala, mankhwala, ndi kukonza chakudya, komwe kumapezeka ma acid amphamvu, alkali, ndi zosungunulira zinthu. Imapereka kukana kwambiri dzimbiri ndipo ndi yoyenera makamaka m'malo omwe muli mpweya woipa komanso kutentha kwambiri.

• Titaniyamu (Ta):Ma electrode a titanium ndi olimba kwambiri ku dzimbiri ndipo ndi abwino kwambiri m'malo ovuta, makamaka omwe ali ndi madzi a m'nyanja, ma acid, ndi zinthu zina zomwe zimawononga kwambiri. Tantalum (Ta) ndi chinthu china chofanana chomwe chili ndi mphamvu zabwino kwambiri zoteteza dzimbiri, makamaka m'madzi okhala ndi asidi komanso omwe amasinthasintha kwambiri. Tantalum ndi yamtengo wapatali kwambiri ikagwiritsidwa ntchito ndi ma acid amphamvu, kuphatikizapo sulfuric acid, hydrochloric acid, ndi zinthu zina zomwe zimawononga kwambiri.

• Platinamu (Pt):Platinum imalimbana kwambiri ndi dzimbiri la mankhwala, zomwe zimapangitsa kuti ikhale yoyenera kugwiritsa ntchito madzi amphamvu kwambiri, koma nthawi zambiri imagwiritsidwa ntchito m'malo apadera chifukwa cha mtengo wake wokwera. Ma electrode a platinum amakondedwa m'malo omwe kulondola kwambiri komanso kusagwira ntchito kwa mankhwala kumafunika, monga m'ma laboratories kapena ntchito zina zachipatala ndi zowunikira. Kukhazikika kwabwino kwa platinum komanso kukana mankhwala osiyanasiyana kumapangitsa kuti ikhale yoyenera kugwiritsidwa ntchito komwe kumafuna kugwira ntchito nthawi zonse.

• Graphite kapena Carbon:Zipangizozi nthawi zina zimagwiritsidwa ntchito popanga zinthu zomwe zimakhala ndi madzi okhuthala kwambiri kapena amphamvu. Ma electrode a graphite nawonso amalimbana ndi dzimbiri koma amatha kukokoloka mosavuta pazifukwa zina.

• Golide:Ma electrode agolide nthawi zambiri amagwiritsidwa ntchito pazochitika zomwe zimafuna kulondola kwambiri ndipo amapezeka kwambiri m'ma laboratories kapena ntchito zapadera kwambiri.

3. Kasinthidwe ka Electrode

Kapangidwe ka ma electrode kangakhudze kulondola ndi kukhudzidwa kwa mita yoyendera. Ma electrode awiri odziwika kwambiri ndi awa:

• Kapangidwe ka Single-Electrode:Kapangidwe kameneka kamagwiritsa ntchito elekitirodi imodzi yolumikizirana ndi madzi ndi ina yolumikizira chizindikiro chofotokozera. Ndi kosavuta komanso kotsika mtengo koma kungapereke kulondola kochepa pa ntchito zina.

• Kapangidwe ka Ma Electrode Angapo (Ma Electrode Anayi):Kapangidwe kameneka kamakhala ndi ma electrode angapo okonzedwa mozungulira chitolirocho. Kapangidwe kameneka kamapereka miyeso yolondola kwambiri, makamaka pakugwiritsa ntchito madzi okhuthala kwambiri kapena ovuta. Zingathandizenso kuchepetsa zolakwika chifukwa cha polarization ndi kusokoneza kwa ma signal.

4. Kuphimba ndi Chitetezo cha Electrode

Nthawi zina, ma electrode amatha kuphimbidwa kapena kutetezedwa kuti apititse patsogolo magwiridwe antchito pazinthu zinazake. Mwachitsanzo:

• Zophimba za Ceramic:Pa madzi okhuthala kwambiri kapena owononga, zokutira za ceramic zingathandize kuteteza ma electrode kuti asawonongeke ndikuwonjezera nthawi yawo yogwira ntchito.

• Zophimba za PTFE kapena PFA:Pa mankhwala osayendetsa mpweya kapena amphamvu, zokutira za electrode zopangidwa kuchokera ku fluoropolymers monga PTFE kapena PFA zimagwiritsidwa ntchito popereka chitetezo ndi kuteteza.

5. Kukana Kutentha ndi Kupanikizika

Ma electrode ayenera kusankhidwa kutengera kutentha ndi kupanikizika kwa ntchitoyo. Mwachitsanzo, ma electrode a titaniyamu, Hastelloy, ndi platinamu ndi oyenera kwambiri kugwiritsa ntchito kutentha kwambiri komanso kupanikizika kwambiri poyerekeza ndi ma electrode wamba achitsulo chosapanga dzimbiri.

6. Kukula kwa Mita Yoyendera ndi Kugwiritsa Ntchito

Kukula ndi mtundu wa choyezera kuyenda kwa magetsi (monga, choboola chonse kapena cholowetsa) zidzakhudzanso kusankha ma electrode. Ma flow meter akuluakulu nthawi zambiri amafunikira ma electrode akuluakulu kuti agwire bwino ntchito.

Mapeto

Kusankha ma electrode a ma electrode flow meter ndikofunikira kwambiri kuti zitsimikizire kuti flow meter ndi yolondola, makamaka m'malo ovuta a mafakitale. Poganizira za mayendedwe a madzi, momwe ma electrode amagwirira ntchito, kapangidwe ka ma electrode, ndi momwe amagwirira ntchito (monga kutentha, kuthamanga, ndi kuwonetsa mankhwala), mutha kusankha zinthu zoyenera za ma electrode ndi momwe mungapangire. Zipangizo monga HC276 (Hastelloy), Ta (Tantalum), ndi Pt (Platinum) zimapereka kukana bwino dzimbiri ndipo ndizoyenera kwambiri pakugwiritsa ntchito movutikira. Kusankha ma electrode moyenera kungathandize kuti flow meter ikhale yayitali komanso yodalirika, zomwe zimapangitsa kuti ikhale chinthu chamtengo wapatali m'makina oyezera flow flow.