Kev Xaiv Hluav Taws Xob Rau Cov Ntsuas Hluav Taws Xob

Cov ntsuas dej ntws hluav taws xob (tseem hu ua mag meters) yog siv dav rau kev ntsuas qhov ntws ntawm cov kua dej conductive hauv kev siv hauv kev lag luam. Lawv ua haujlwm raws li Faraday Txoj Cai ntawm electromagnetic induction thiab tsis muaj cov khoom txav mus los, ua rau lawv raug thiab txhim khu kev qha rau ntau yam kev ntsuas ntws. Ib qho tseem ceeb ntawm cov ntsuas dej ntws hluav taws xob yog lub electrode, uas ua lub luag haujlwm tseem ceeb hauv cov txheej txheem ntsuas. Kev xaiv cov khoom siv electrode thiab kev teeb tsa nyob ntawm ntau yam, xws li cov kua dej uas ntsuas, cov xwm txheej ib puag ncig, thiab qhov tseeb ntawm kev ntsuas.

Cov Kev Xav Tseem Ceeb rau Kev Xaiv Electrode

1. Kev coj ua ntawm cov kua dej

Cov ntsuas hluav taws xob electromagnetic xav kom cov kua dej ua hluav taws xob kom ntsuas qhov ntws ua haujlwm tau zoo. Cov electrodes ntes tau qhov hluav taws xob tsim thaum cov kua dej hla dhau lub zog sib nqus ntawm lub ntsuas ntws. Yog li ntawd, kev xaiv cov khoom siv electrode zoo yog qhov tseem ceeb kom ntseeg tau tias muaj kev ntsuas raug, tshwj xeeb tshaj yog tias qhov conductivity ntawm cov kua dej qis lossis siab.

2. Cov Khoom Siv Hluav Taws Xob

Cov khoom siv rau cov electrodes yuav tsum sib xws nrog cov khoom siv tshuaj lom neeg ntawm cov kua dej kom ntseeg tau tias muaj zog thiab ntseeg tau. Cov khoom siv electrode feem ntau suav nrog:

• Hlau tsis xeb (316L):Ib qho ntawm cov ntaub ntawv siv feem ntau rau cov electrodes, stainless hlau muaj kev tiv thaiv corrosion zoo heev thiab haum rau ntau yam kua, suav nrog dej, slurries, thiab feem ntau cov tshuaj lom neeg.

• Kab mob Hastelloy (HC276):Hastelloy yog ib qho hlau uas tiv taus corrosion, tshwj xeeb tshaj yog paub txog nws lub peev xwm los tiv taus cov tshuaj lom neeg hnyav thiab qhov kub thiab txias heev.HC276Feem ntau siv rau hauv kev lag luam xws li tshuaj, tshuaj lom neeg, thiab kev ua zaub mov, qhov twg raug rau cov kua qaub, alkalis, thiab cov kuab tshuaj ntau. Nws muab kev tiv thaiv zoo rau kev xeb thiab tshwj xeeb tshaj yog rau qhov chaw siab thiab kub.

• Titanium (Ta):Cov hlau nplaum titanium muaj zog tiv taus xeb thiab zoo tagnrho rau cov chaw ib puag ncig hnyav, tshwj xeeb tshaj yog cov uas muaj dej hiav txwv, kua qaub, thiab lwm yam tshuaj corrosive heev. Tantalum (Ta) yog lwm yam khoom zoo sib xws nrog cov khoom tiv taus xeb zoo heev, tshwj xeeb tshaj yog nyob rau hauv cov kua qaub thiab cov kua dej uas muaj zog heev. Tantalum muaj txiaj ntsig tshwj xeeb thaum cuam tshuam nrog cov kua qaub muaj zog, suav nrog sulfuric acid, hydrochloric acid, thiab lwm yam tshuaj corrosive heev.

• Platinum (Pt):Platinum tiv taus cov tshuaj lom neeg xeb heev, ua rau nws tsim nyog rau cov kua dej uas muaj zog heev, tab sis feem ntau nws siv rau hauv cov ntawv thov tshwj xeeb vim nws tus nqi siab. Platinum electrodes nyiam siv rau hauv cov chaw uas xav tau kev ua haujlwm raug thiab kev tsis muaj tshuaj lom neeg, xws li hauv kev teeb tsa hauv chav kuaj lossis qee yam kev kho mob thiab kev siv tshuaj ntsuam xyuas. Platinum qhov ruaj khov zoo heev thiab tiv taus ntau yam tshuaj lom neeg ua rau nws zoo tagnrho rau cov ntawv thov uas xav tau kev ua haujlwm tas mus li.

• Graphite los yog Carbon:Cov ntaub ntawv no qee zaum siv rau cov ntawv thov uas muaj cov kua dej uas ua rau tawv heev lossis ua rau tawv heev. Cov hluav taws xob graphite kuj tiv taus xeb heev tab sis tej zaum yuav yooj yim rau kev tawg hauv qee qhov xwm txheej.

• Kub:Cov electrodes kub feem ntau siv rau hauv cov xwm txheej uas xav tau qhov tseeb siab heev thiab feem ntau pom muaj nyob rau hauv chav kuaj lossis cov ntawv thov tshwj xeeb heev.

3. Kev Teeb tsa Electrode

Kev teeb tsa electrode tuaj yeem cuam tshuam rau qhov tseeb thiab qhov rhiab heev ntawm lub flow meter. Ob qho kev teeb tsa electrode feem ntau yog:

• Kev Teeb tsa Ib Lub Electrode:Qhov kev teeb tsa no suav nrog ib lub electrode rau kev sib cuag kua thiab lwm qhov rau lub cim qhia siv. Nws yooj yim dua thiab pheej yig dua tab sis tej zaum yuav muab qhov tseeb qis dua hauv qee qhov kev siv.

• Kev Teeb tsa Ntau Lub Electrode (Plaub Lub Electrode):Tus qauv no muaj ntau lub electrodes uas tau teeb tsa ua ib lub voj voog ncig lub yeeb nkab. Qhov kev teeb tsa no muab kev ntsuas kom raug dua, tshwj xeeb tshaj yog rau cov ntawv thov uas muaj cov kua dej khov heev lossis cov kua dej nyuaj. Nws kuj tseem tuaj yeem pab txo qhov yuam kev vim yog polarization thiab kev cuam tshuam ntawm lub teeb liab.

4. Kev Txheej Txheem Hluav Taws Xob thiab Kev Tiv Thaiv

Qee zaum, cov electrodes yuav raug coated lossis tiv thaiv kom txhim kho kev ua tau zoo hauv cov ntawv thov tshwj xeeb. Piv txwv li:

• Cov Txheej Txheem Ceramic:Rau cov kua uas muaj zog heev lossis muaj xeb, cov txheej txheem ceramic tuaj yeem pab tiv thaiv cov electrodes kom tsis txhob puas tsuaj thiab ua rau lawv lub neej ntev dua.

• PTFE los yog PFA Txheej:Rau cov tshuaj uas tsis ua hluav taws xob lossis cov tshuaj uas ua rau tawv tawv, cov txheej electrode ua los ntawm fluoropolymers xws li PTFE lossis PFA yog siv los muab kev rwb thaiv tsev thiab kev tiv thaiv.

5. Kev Tiv Thaiv Kub thiab Siab

Cov electrodes yuav tsum tau xaiv raws li qhov kub thiab txias ntawm daim ntawv thov. Piv txwv li, titanium, Hastelloy, thiab platinum electrodes zoo dua rau kev siv kub thiab siab dua piv rau cov electrodes stainless hlau txheem.

6. Qhov Loj thiab Daim Ntawv Thov ntawm Flow Meter

Qhov loj thiab hom ntawm lub ntsuas dej electromagnetic flow meter (piv txwv li, full-bore lossis insertion) kuj tseem yuav cuam tshuam rau kev xaiv electrode. Cov ntsuas dej loj dua feem ntau xav tau cov electrodes loj dua rau kev ua haujlwm zoo tshaj plaws.

Xaus lus

Kev xaiv electrode rau cov ntsuas hluav taws xob electromagnetic flow meters yog qhov tseem ceeb heev kom ntseeg tau tias qhov ntsuas ntws raug, tshwj xeeb tshaj yog nyob rau hauv cov chaw ua haujlwm nyuaj. Los ntawm kev xav txog qhov conductivity ntawm cov kua dej, cov khoom siv ntawm cov electrodes, qhov kev teeb tsa ntawm cov electrodes, thiab cov xwm txheej ua haujlwm (xws li kub, siab, thiab kev raug tshuaj lom neeg), koj tuaj yeem xaiv cov khoom siv electrode thiab kev teeb tsa tsim nyog rau koj daim ntawv thov. Cov ntaub ntawv xws li HC276 (Hastelloy), Ta (Tantalum), thiab Pt (Platinum) muaj kev tiv thaiv zoo heev rau kev xeb thiab tsim nyog heev rau cov ntawv thov uas xav tau ntau. Kev xaiv electrode kom raug tuaj yeem txhim kho lub neej ntev thiab kev ntseeg siab ntawm lub ntsuas ntws, ua rau nws yog ib qho khoom muaj nqis hauv cov txheej txheem ntsuas ntws hauv kev lag luam.