Cov qauv ntawm electromagnetic flowmeter feem ntau yog tsim los ntawm magnetic circuit system, ntsuas conduit, electrode, plhaub, hauv ob sab phlu thiab converter.
Sib nqus Circuit Court system: Nws txoj haujlwm yog los tsim kom muaj ib qho DC lossis AC magnetic teb. DC magnetic Circuit Court tau paub los ntawm cov hlau nplaum ruaj khov, uas muaj qhov zoo ntawm cov qauv yooj yim thiab tsis cuam tshuam los ntawm AC magnetic teb, tab sis nws yog ib qho yooj yim rau polarize cov kua electrolyte nyob rau hauv lub ntsuas catheter, kom cov electrode nyob ib ncig ntawm qhov tsis zoo. ions, thiab qhov tsis zoo electrode yog surrounded los ntawm zoo ions. Nyob ib puag ncig, uas yog, qhov tshwm sim polarization ntawm cov electrodes, thiab ua rau muaj kev nce ntxiv hauv kev tiv thaiv sab hauv ntawm ob lub electrodes, yog li cuam tshuam rau kev ua haujlwm ntawm lub twj paj nruag. Thaum txoj kab uas hla ntawm lub raj xa dej loj, cov hlau nplaum ruaj khov yog qhov loj, cumbersome thiab uneconomical, yog li cov electromagnetic flowmeter feem ntau siv ib qho chaw sib nqus sib nqus, thiab yog tsim los ntawm excitation ntawm 50HZ fais fab zaus fais fab mov.
Ntsuas catheter: nws txoj haujlwm yog cia cov kua ntsuas ntsuas tau dhau mus. Txhawm rau ua kom cov hlau nplaum sib nqus tau shunted lossis luv luv thaum cov kab hlau nplaum hla dhau los ntawm kev ntsuas cov kav dej, qhov ntsuas cov kav dej yuav tsum tau ua los ntawm cov ntaub ntawv uas tsis muaj hlau nplaum conductivity, tsis tshua muaj hluav taws xob conductivity, thermal conductivity thiab qee yam muaj zog. Yas, aluminium, thiab lwm yam.
Electrode: Nws muaj nuj nqi yog kos tawm ib qho induced muaj peev xwm teeb liab proportional rau tus nqi ntsuas. Cov electrodes feem ntau yog ua los ntawm cov hlau tsis muaj hlau tsis sib nqus thiab yuav tsum tau yaug nrog cov hauv ob sab phlu kom cov dej tuaj yeem hla tsis muaj kev cuam tshuam. Nws txoj haujlwm kev teeb tsa yuav tsum nyob rau hauv txoj kab ntsug ntawm cov kav dej kom tsis txhob muaj cov av nkos ntawm nws thiab cuam tshuam rau qhov ntsuas qhov tseeb.
Plhaub: Ua los ntawm cov khoom siv ferromagnetic, nws yog lub hau npog ntawm excitation coil ntawm lub tshuab xa tawm, thiab cais cov kev cuam tshuam ntawm sab nraud magnetic teb.
Hauv ob sab phlu: Muaj ib qho ua tiav hluav taws xob insulating hauv ob sab phlu ntawm sab hauv ntawm lub ntsuas ntsuas thiab lub sealing nto ntawm lub flange. Nws ncaj qha tiv tauj cov kua ntsuas, thiab nws txoj haujlwm yog txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau ntsuas cov kav dej thiab tiv thaiv qhov cuam tshuam los ntawm qhov luv luv los ntawm phab ntsa ntawm cov hlau ntsuas cov kav dej. Cov ntaub ntawv hauv ob sab phlu feem ntau yog corrosion-resistant, high-temperature-resistant, hnav-resistant PTFE plastics, ceramics, thiab lwm yam.
Converter: Lub teeb liab induced muaj peev xwm tsim los ntawm cov kua ntws yog qhov tsis muaj zog thiab cuam tshuam los ntawm ntau yam cuam tshuam. Lub luag haujlwm ntawm lub converter yog los ua kom nrov nrov thiab hloov cov teeb liab induced muaj peev xwm mus rau hauv ib qho kev sib koom ua qauv teeb liab thiab suppress lub ntsiab cuam tshuam teeb liab. Nws txoj hauj lwm yog los ua kom nrov nrov thiab hloov cov teeb liab muaj peev xwm tshwm sim Ex kuaj pom los ntawm electrode rau hauv ib qho kev sib koom ua ke DC teeb liab.