Cov ntsiab lus tseem ceeb rau kev xaiv lub ntsuas hluav taws xob electromagnetic flowmeter

Piv txwv li, nyob rau hauv daim ntawv kev lag luam, pulp thiab dub cawv muaj ib tug loj npaum li cas ntawm fibers thiab impurities, ua kom raug ntsuas nyuaj nrog ib txwm flowmeters. Electromagnetic flowmeters, vim lawv cov kev hloov pauv zoo rau cov kua dej, yog qhov kev xaiv zoo tshaj plaws. Hauv kev lag luam uas tsis yog -ferrous metallurgy, kev tswj xyuas meej yog tsim nyog rau kev thauj mus los ntawm ore slurry kom ntseeg tau tias cov khoom siv tau zoo, thiab cov tshuab electromagnetic flowmeters tuaj yeem tswj tau qhov siab concentration thiab muaj zog abrasive yam ntxwv ntawm slurry. Hauv cov nroj tsuag npaj cov thee, electromagnetic flowmeters tuaj yeem saib xyuas cov dej ntws hauv lub sijhawm tiag tiag thaum lub sijhawm thauj cov thee slurry, optimizing thee ntxuav txheej txheem. Hauv kev lag luam tshuaj, rau cov tshuaj corrosive acid thiab alkali heev, electromagnetic flowmeters, los ntawm kev xaiv cov ntaub ntawv hauv ob sab phlu, muaj kev tiv thaiv corrosion zoo, ua kom ntev - lub sijhawm ua haujlwm ruaj khov. Cov me me thiab micro-sized electromagnetic flowmeters feem ntau yog siv rau hauv thaj chaw uas yuav tsum muaj kev nyiam huv, xws li tshuaj, zaub mov, thiab bioengineering. Piv txwv suav nrog kev ntsuas kev thauj mus los ntawm cov tshuaj ua kua hauv cov txheej txheem tshuaj, cov khoom siv raw khoom sib faib tswj hauv cov kab ntau lawm, thiab kab lis kev cai nruab nrab ntawm kev saib xyuas hauv bioreactors. Lawv cov kev cuam tshuam -dawb tsim thiab cov yam ntxwv tu yooj yim ua tau raws li cov qauv kev nyiam huv thiab kev huv huv. Electromagnetic flowmeters tuaj yeem siv los ntsuas qhov tseeb hauv txhua daim ntawv thov saum toj no.

1. Cov chav kawm raug thiab ua haujlwm: Cov chav kawm raug tsim nyog yuav tsum raug xaiv raws li kev thov sib txawv. Hais txog kev ua haujlwm, cov yam ntxwv xws li kev ntsuas bidirectional ntws, tag nrho ntim ntim, tshaj - lub tswb nrov, kev tiv thaiv hluav taws xob tsis ua haujlwm, thiab cov ntaub ntawv xa mus rau tej thaj chaw deb (xws li 4-20mA teeb liab tso tawm, HART raws tu qauv, Modbus raws tu qauv, thiab lwm yam) tuaj yeem teeb tsa raws li qhov xav tau tiag tiag kom ua tau raws li qhov xav tau ntawm kev tswj hwm lub tshuab;

2. Flow Velocity, Tag Nrho -Scale Flow Rate, Turndown Ratio, thiab Pipe Diameter: Qhov khiav nrawm yuav tsum tau xaiv ua ke nrog cov yeeb nkab txoj kab uas hla thiab ntws tus nqi los xyuas kom meej linearity thiab stability ntawm kev ntsuas; qhov turndown ratio yog hais txog qhov piv ntawm qhov siab tshaj plaws ntsuas qhov ntws mus rau qhov tsawg kawg nkaus ntsuas qhov ntsuas ntawm qhov ntsuas. Electromagnetic flow meter feem ntau muaj qhov sib piv ntawm 1:20 txog 1:100. Thaum xaiv, nws yog ib qho tsim nyog los xyuas kom meej tias qhov tseeb ntws tus nqi yog nyob rau hauv qhov ntau; txoj kab uas hla ntawm cov yeeb nkab yuav tsum phim lub raj xa dej, los yog txuas nrog ntawm kev txo cov fittings, kom ntseeg tau tias cov kua dej tau tsim nyob rau hauv cov yeeb nkab thiab txo cov eddy tam sim no cuam tshuam;

3. Liquid Conductivity: Electromagnetic flow meter ua haujlwm raws li Faraday txoj cai ntawm electromagnetic induction, yuav tsum tau ntsuas cov kua kom muaj qee yam conductivity, feem ntau ntau dua 5 μS / cm. Rau cov kua dej qis qis xws li dej ntshiab, tshwj xeeb tsim cov ntsuas hluav taws xob electromagnetic los yog ntxiv cov electrolytes. Yog hais tias qhov conductivity tsawg dhau, nws yuav ua rau cov teeb liab tsis muaj zog thiab nce kev ntsuas yuam kev;

4. impurities nyob rau hauv cov kua: Thaum cov kua muaj impurities xws li npuas, khoom particles, los yog fibers, qhov ntsuas qhov tseeb yuav raug cuam tshuam. Lub xub ntiag ntawm npuas tuaj yeem ua rau cov hluav taws xob luv luv thiab tsim cov teeb liab tsis tseeb; Cov khoom siv tuaj yeem ua rau electrode hnav lossis nto adhesion, hloov cov electrode Circuit Court tsis kam; Cov tshuaj fiber ntau yuav qhwv ib ncig ntawm cov electrodes, cuam tshuam cov teeb liab kis tau tus mob. Yog li, hom, concentration, thiab daim ntawv ntawm impurities yuav tsum tau txiav txim siab thaum xaiv;

5. Adhesion thiab Sedimentation: Thaum ntsuas cov kua dej uas nquag ua rau sedimentation lossis adhesion (xws li qee cov tshuaj tov los yog slurries), cov deposits tuaj yeem tsim rau ntawm electrode nto, ua rau muaj kev hloov pauv hauv electrode Circuit Court tsis kam thiab ua rau kev ntsuas yuam kev;

6. Kev xaiv cov khoom siv rau cov kua dej-Cov khoom sib txuas: Cov khoom siv ntawm cov khoom sib txuas nrog cov kua dej (xws li electrodes, linings, flange seals, thiab lwm yam) yuav tsum tau xaiv kom tsim nyog raws li qhov corrosiveness, kub, siab, thiab lwm yam ntxwv ntawm cov kua ntsuas.