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QUICK teb
IoT corrosion saib xyuas siv tas mus li ntsia, wirelessly txuas sensors - feem ntau hluav taws xob tsis kam (ER), linear polarization resistance (LPR), thiab ultrasonic thickness (UT) probes - los ntsuas cov hlau poob thiab corrosion tsis tu ncua thiab xa cov ntaub ntawv mus rau huab lossis nroj tsuag tswj qhov system nyob ze ntawm lub sijhawm, hloov cov ntawv ntu ntu ntawm daim coupon rub tawm thiab cov kab nrib pleb hauv kev soj ntsuam.
ER sensors (ASTM G96 Test Method A) ntsuas cumulative hlau poob los ntawm kev taug qab qhov kev hloov ntawm hluav taws xob tsis kam raws li qhov ntsuas lub cev thins; LPR sensors (ASTM G96 Test Method B) ntsuas instantaneous electrochemical corrosion tus nqi; wireless UT transmitters ntsuas cov phab ntsa ncaj qha- thickness poob ntawm cov kav dej thiab cov hlab ntsha, suav nrog hauv qab rwb thaiv tsev.
Niaj hnub nimno wireless UT systems qhia txog kev daws teeb meem zoo li 0.01 hli thiab tuaj yeem khiav ntawm WirelessHART lossis LoRaWAN tes hauj lwm txog li kaum xyoo ntawm ib lub roj teeb, lossis siv roj teeb -dawb, inductively powered sensors uas tsuas yog qhib thaum nug.
Tsis muaj ib hom sensor tso siab tau txhua qhov kev txhim kho corrosion cuam tshuam rau cov hlau tsis muaj steel: ER thiab LPR yog tsim los rau kev sib tsoo (uniform) corrosion thiab paub tias nyob rau hauv -nrhiav cov pitting hauv zos, yog li chloride- cov ntawv siv stainless hlau feem ntau xav tau UT lossis ntau -sensor txheej txheej txheej saum toj ntawm electrochemical xyuas.
IoT corrosion sensors yog qhov tseem ceeb tshaj plaws nyob rau hauv qhov chaw corrosion yog zais, nyuaj rau kev nkag mus, lossis kim los tshuaj xyuas manually - corrosion nyob rau hauv rwb thaiv tsev (CUI), faus los yog subsea piping, thiab cov khoom siv ua haujlwm tsis tu ncua - thiab lawv ntxiv, es tsis hloov, ncua sij hawm NDT tshuaj xyuas thiab daim coupon -raws li kev txheeb xyuas raws li ASTM G96 thiab lwm yam qauv. |
IoT yog dab tsi -Based Corrosion Monitoring?
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IoT corrosion saib xyuas hloov lub sij hawm, taw tes-hauv- lub sijhawm tshuaj xyuas - rub daim coupon corrosion ib zaug hauv ib lub hlis twg, lossis teem caij rau phau ntawv ntsuas ultrasonic thickness ib xyoos ib zaug - nrog rau cov twj tso kua mis mus tas li uas ntsuas corrosion tsis tu ncua thiab xa cov ntaub ntawv wirelessly, yog li lub chaw pom cov kab sib txuas hauv ib lub tsev nyob ze rau lub qhov rais poob tsuas yog thaum nrhiav pom lub qhov rai. |
Kev soj ntsuam kev xeb ntawm cov txheej txheem steel hlau feem ntau yog nyob ntawm ib qho ntawm ob txoj hauv kev: huab hwm coj- poob daim coupons, cov qauv hlau me me raug rau cov txheej txheem ib puag ncig thiab lub cev raug tshem tawm, ntxuav, thiab hnyav ntawm lub sijhawm teem; los yog phau ntawv ultrasonic thickness (UT) kev soj ntsuam, qhov twg ib tug kws kho mob taug kev kab nrog ib tug handheld ntsuas thiab sau cov phab ntsa thickness ntawm taag xeem cov ntsiab lus. Ob txoj kev ua haujlwm, tab sis ob qho tib si yog nyob rau lub sijhawm - corrosion uas nrawm nrawm ntawm kev tshuaj xyuas lub sijhawm, lossis tshwm sim ntawm qhov chaw tsis suav nrog qhov ntsuas qhov ntsuas ruaj khov, tuaj yeem mus nrhiav tsis tau kom txog rau thaum lub sijhawm teem sijhawm tom ntej los yog, phem dua, txog thaum nws ua rau xau.
IoT corrosion saib xyuas kaw qhov sib txawv los ntawm kev txhim kho cov sensors mus tas li ntawm qhov chaw txaus siab thiab txuas lawv mus rau lub wireless network (feem ntau WirelessHART lossis LoRaWAN) uas tshaj tawm cov ntawv nyeem ntawm lub sijhawm teev tseg - nyob qhov twg los ntawm ob peb zaug ib teev mus rau ib zaug hauv ib hnub, nyob ntawm daim ntawv thov. Qhov tshwm sim yog kev xeb tsis tu ncua- tus nqi lossis phab ntsa- thickness sib txawv rau qhov tshwj xeeb ntawd, es tsis yog ib qho kev sib txuas ntawm cov snapshots, uas ua rau nws tuaj yeem ntes tus nqi nrawm nrawm ua ntej nws yuav muaj kev txhawj xeeb txog kev ncaj ncees.
Dab tsi Sensing Technologies Ua IoT Corrosion Monitoring Systems tiag tiag siv?
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Peb qhov kev siv thev naus laus zis ua haujlwm feem ntau hauv IoT corrosion saib xyuas - hluav taws xob tsis kam (ER) sensors rau cov hlau tsis sib xws, linear polarization resistance (LPR) lossis electrochemical impedance spectroscopy (EIS) sensors rau instantaneous electrochemical corrosion rate, thiab wireless ultrasonic thickness (UT) transmitters rau {}thov ncaj nraim 2} coj-wave, sib nqus eddy tam sim no, thiab fiber ntau-optic lossis nto acoustic yoj (SAW) sensors sau ntau lub luag haujlwm tshwj xeeb. |
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Hom Sensor |
Dab tsi Nws Ntsuas |
Txoj Kev Tswj |
Kev txwv tseem ceeb |
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Hluav taws xob tsis kam (ER) |
Cov hlau poob, inferred corrosion tus nqi |
ASTM G96 Test Method A |
Nruab nrab thoob plaws qhov chaw sojntsuam; tsis zoo rau kev txheeb xyuas qhov chaw pitting |
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Linear polarization kuj (LPR) |
Instantaneous electrochemical corrosion tus nqi |
ASTM G96 Test Method B |
Yuav tsum muaj cov electrolyte conductive nyob rau hauv kev sib cuag nrog lub sojntsuam; xav tau calibration tiv thaiv lwm cov txheej txheem rau cov nqi tseeb |
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Wireless ultrasonic thickness (UT) |
Direct phab ntsa-thickness / hlau poob ntawm ib qho chaw |
Lub sij hawm- ntawm- davhlau ultrasonic ntsuas, kis ntawm WirelessHART lossis LoRaWAN |
Kev lig kev cai UT xav tau ib coupplant ntawm sensor thiab nto |
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Coj-wave ultrasonic |
Phab ntsa poob tshaj kaum meters ntawm cov yeeb nkab los ntawm ib lub nplhaib sensor |
Torsional/longitudinal yoj lub sij hawm- ntawm- ya davhlau |
Volumetric tshuaj ntsuam cov cuab yeej, tsis yog ib qho kev hloov rau cov ntsiab lus -precision thickness cov ntaub ntawv |
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Sib nqus eddy tam sim no (MEC) |
Phab ntsa poob yam tsis muaj tus neeg sawv cev sib txuas, suav nrog los ntawm kev rwb thaiv tsev |
Electromagnetic induction |
Ntau qhov tshwj xeeb thiab tsis tshua siv dav dua li UT rau hnub tim |
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Fiber-optic / nto acoustic yoj (SAW) |
Nruam los yog faib corrosion sensing raws qhov ntev ntawm cov yeeb nkab lossis cov qauv |
Optical lossis acoustic -wave impedance hloov |
Tus nqi siab dua thiab qhov nyuaj dua li qhov taw tes sensors, tam sim no txwv kev siv dav |
Muab tso ua ke los ntawm ASTM G96 thiab luam tawm corrosion- saib xyuas cov ntaub ntawv engineering thiab cov ntaub ntawv ua lag luam. Kev xaiv sensor yuav tsum tau sib phim rau cov txheej txheem corrosion tshwj xeeb, cov khoom tsim, thiab kev nkag tau ntawm cov cuab yeej saib xyuas.
Yuav Ua Li Cas Cov Sensors Tshawb Pom Cov Pitting thiab Chloride-Triven Corrosion hauv Stainless Hlau Tshwj Xeeb?
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Tsis muaj ib lub sensor tso siab tau rau hauv zos pitting txoj kev uas nws catches dav corrosion - ER thiab LPR sensors nruab nrab lawv cov teeb liab nyob rau hauv lub sojntsuam nto thiab muaj ntaub ntawv raws li tsis zoo haum rau nrhiav tau localized nres, yog li chloride- cov ntawv thov stainless hlau feem ntau muab cov ntaub ntawv tuab tuab ntawm ntau lub ntsiab lus nrog electrochemical xyuas, thiab nce ntxiv nrog multi{2} thiab kev cob qhia tshwj xeeb {3} sensor {2} qhov tob. |
Qhov kev sib txawv no tseem ceeb dua rau cov hlau tsis muaj steel dua li cov hlau carbon. Stainless hlau qhov kev tiv thaiv corrosion nyob ntawm qhov tsis zoo ntawm cov chromium oxide zaj duab xis, thiab nws feem ntau tsis ua haujlwm hom hauv chloride - muaj ib puag ncig - dej hiav txwv, dej txias, de- icing ntsev raug, ntug hiav txwv cua - yog thaj chaw pitting lossis chloride kev ntxhov siab corrosion tawg ntau dua li cov phab ntsa nyias nyias. Lub sensor ua rau nruab nrab ntawm cov hlau poob thoob plaws nws qhov chaw tag nrho tuaj yeem tshaj tawm qhov tsis zoo - saib tus nqi corrosion feem ntau thaum ploj ntawm ib qho kev txhoj puab heev uas yog qhov kev pheej hmoo ntawm kev ncaj ncees.
Cov kev tshawb fawb luam tawm tsis ntev los no hais txog qhov no ncaj qha: ntau-sensor fusion txoj hauv kev uas sib txuas cov ntaub ntawv ultrasonic thickness nrog rau lwm hom kev sojntsuam, ua tiav los ntawm tshuab-cov qauv kev kawm, tau tsim tshwj xeeb los txheeb xyuas pitting corrosion thiab kwv yees qhov tob hauv txoj hauv kev uas ib qho -sensor- hom system ua tsis tau. Rau qhov chaw khiav austenitic lossis duplex stainless hlau hauv cov tshuaj chloride -cov kev pabcuam raug nthuav tawm, qhov no txhais tau hais tias kev xaiv sensor thiab qhov chaw yuav tsum tau tsav los ntawm qhov xav tau corrosion mechanism - tsis yog los ntawm qhov sensor yooj yim tshaj plaws rau nruab.
Yuav ua li cas Wireless Cov ntaub ntawv tau txais los ntawm Sensor mus rau tsob nroj saib xyuas Dashboard?
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Feem ntau cov kev lag luam corrosion sensors siv WirelessHART los yog LoRaWAN tes hauj lwm los xa cov kev nyeem ntawv mus rau lub qhov rooj hauv zos, uas xa cov ntaub ntawv mus rau cog tswj systems lossis huab -raws li kev soj ntsuam software; qee lub tshuab zam cov roj teeb tag nrho los ntawm kev siv cov khoom siv hluav taws xob inductively uas tsuas yog nyeem ntawv thaum lub xov tooj ntawm tes los yog nyeem ntawv raug coj los nyob ze lawv, ua lag luam tsis siv neeg tshaj tawm rau lub neej ntev heev. |
WirelessHART, qhov txuas ntxiv ntawm HART cov txheej txheem kev lag luam dav siv, thiab LoRaWAN, qhov ntev -ntau, qis- fais fab wireless standard, yog ob lub network thev naus laus zis feem ntau hais thoob plaws kev lag luam wireless UT thiab corrosion-transmitter systems. Lub roj teeb lub neej ntawm cov ntawv ceeb toom tsis tu ncua no feem ntau ntsuas txog li kaum xyoo, uas tseem ceeb vim tias cov sensors feem ntau tau teeb tsa hauv qhov nyuaj - mus rau - nkag mus rau qhov chaw - nyob rau hauv rwb thaiv tsev, ntawm qhov siab, hauv qhov chaw kaw - qhov twg cov roj teeb nquag hloov lawv tus kheej yuav dhau los ua lub nra hnyav.
Ib qho kev tsim lwm txoj kev zam lub roj teeb lo lus nug tag nrho: qee qhov ultrasonic thickness tshuab siv passive, roj teeb -dawb sensors uas tau txuas mus tas li tab sis nyob twj ywm kom txog thaum lub xov tooj ntawm tes, siv tsis yog -hu rau inductive coupling, powers lub sensor remotely thiab sau ntawv nyeem. Qhov no ua lag luam qhov yooj yim ntawm tag nrho tsis siv neeg, kev tshaj tawm tsis tu ncua rau lub sensor nrog lub neej ua haujlwm tsis muaj kev txwv, uas tuaj yeem ua tau zoo dua rau cov chaw uas wireless network them lossis hloov roj teeb tsis zoo.
Cov txheej txheem dab tsi tswj xyuas Corrosion Monitoring Sensor Deployment thiab Kev txhais cov ntaub ntawv?
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ASTM G96 yog cov lus qhia tseem ceeb rau kev saib xyuas hluav taws xob hauv online thiab electrochemical corrosion, ua raws li kev ntsuas hluav taws xob tiv thaiv raws li Kev Ntsuas A thiab kev ntsuas polarization tsis kam raws li Kev Ntsuas B, thiab nws tus khub tus qauv ASTM G102 tswj hwm li cas cov khoom siv raw electrochemical ntsuas tau hloov mus rau hauv tus nqi corrosion tus nqi - cov ntaub ntawv sensor yuav tsum tau txhais tawm tsam cov qauv no ntau dua li kev kho. |
ASTM G96 npog cov txheej txheem rau kev saib xyuas kev xeb hauv online ntawm cov hlau hauv cov khoom siv cog hauv kev ua haujlwm, tsis tas yuav tshem tawm qhov kev sojntsuam los ntawm kev pabcuam, thiab qhia meej meej tias kev kwv yees corrosion dav dav los ntawm kev sojntsuam suav nrog qhov kev xav nruab nrab ntawm qhov kev sojntsuam nto - tib qhov kev txwv tau tham saum toj no hauv cov ntsiab lus ntawm pitting nrhiav pom. Test Method A (hluav taws xob tsis kam) qhia txog cov hlau tsis sib xws, los ntawm qhov kev txiav txim siab corrosion; Test Method B (polarization resistance) qhia txog tus nqi electrochemical corrosion tam sim no tab sis yuav tsum tau calibration tiv thaiv lwm cov txheej txheem, xws li daim coupon poob phaus, tsim kom muaj tus nqi tseeb rau ib puag ncig txheej txheem.
Rau phab ntsa -thickness- raws li kev soj ntsuam, qhov cuam tshuam cov ntsiab lus feem ntau yog lub chaw ua haujlwm ntawm nws tus kheej cov txheej txheem kev ntseeg siab thiab siv cov kav dej / cov kav dej (xws li API 570 rau cov kav dej lossis API 510 rau cov hlab ntsha hauv cov txheej txheem kev lag luam), uas txhais tau tias qhov tsawg kawg nkaus yuav tsum muaj phab ntsa tuab thiab kev soj ntsuam lub sijhawm; IoT UT sensors pub cov ntaub ntawv rau hauv qhov kev zov me nyuam es tsis hloov nws cov kev lees paub.
Qhov twg yog IoT Corrosion Sensors Feem ntau muaj nuj nqis rau cov khoom vaj khoom tsev Stainless hlau?
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IoT corrosion sensors xa cov nqi tshaj plaws uas corrosion yog lub cev zais, kim lossis phom sij los tshuaj xyuas manually, lossis tshwm sim tsis tu ncua ntawm kev teem sijhawm kaw - corrosion nyob rau hauv rwb thaiv tsev (CUI), faus los yog subsea piping, thiab tsis tu ncua kev khiav hauj lwm txheej txheem, marine, thiab desalination khoom yog qhov clearest fits. |
Corrosion nyob rau hauv rwb thaiv tsev (CUI)
CUI yog ib qho ntawm cov teeb meem nyuaj tshaj plaws los ntes nrog kev tshuaj ntsuam xyuas kom meej vim tias cov rwb thaiv tsev thiab cladding uas nkaum nws kuj thaiv qhov muag pom thiab niaj hnub UT. Wireless UT thiab magnetic eddy tam sim no sensors ntsia nyob rau hauv lub rwb thaiv tsev, nrog cabling los yog wireless transmitters routed mus rau ib qho chaw nkag tau, tso cai rau kev soj ntsuam tas mus li yam tsis tas yuav stripping thiab hloov rwb thaiv tsev tsuas yog xyuas cov phab ntsa thickness - ib qho tseem ceeb ua hauj lwm thiab nqi txuag ntawm nws tus kheej.
Siv tsis tau, faus, lossis cov kav dej hauv qab hiav txwv
Kev taw qhia -wave ultrasonic sensors, uas tuaj yeem tshawb xyuas kaum tawm meters ntawm cov yeeb nkab los ntawm ib qho chaw txuas, thiab txuas mus tas li cov ntsiab lus sensors ntawm faus lossis hauv qab dej, txuas ntxiv kev saib xyuas mus rau qhov chaw uas kev tshuaj xyuas phau ntawv yuav xav tau kev khawb, dhia dej, lossis txuas ntxiv kaw.
Kev ua haujlwm tsis tu ncua, cov khoom siv marine, thiab desalination
Chloride-cov khoom siv stainless thiab duplex stainless hlau nyob rau hauv marine ib puag ncig, desalination nroj tsuag, thiab tshuaj ua qhov chaw uas kaw rau kev soj ntsuam yog ib tug tiag tiag cov nqi tsim tau txiaj ntsig los ntawm kev nruam cov ntaub ntawv uas yuav ua kom pom tseeb - los yog ncua - kev kaw raws li qhov tseeb ntsuas es tsis yog ib lub sij hawm ruaj khov, ib qho kev xyaum raws li kev kwv yees{3}.
Dab tsi yog qhov txwv ntawm IoT Corrosion Monitoring Sensors?
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IoT corrosion sensors muab cov ntsiab lus lossis kab kev tiv thaiv, tsis yog tag nrho - kev tiv thaiv saum npoo, yog li lawv tuaj yeem nco qhov tsis xws luag uas tawm ntawm qhov chaw sensor; general-corrosion sensor hom (ER, LPR) yog cov ntaub ntawv tsis zoo ntawm kev kuaj pom hauv zos pitting; thiab sensor nyeem ntawv tseem yuav tsum tau calibration, kub them, thiab xyuas raws sij hawm tiv thaiv daim coupon los yog phau ntawv tshuaj xyuas cov ntaub ntawv kom ntseeg tau nyob rau hauv lub sij hawm ntev. |
Kev pab them nqi kho mob: ib lub sensor ruaj ruaj ntsuas corrosion ntawm nws tus kheej qhov chaw; ib lub qhov los yog qhov chaw nyias nyias uas tsim lwm qhov ntawm cov khoom vaj khoom tsev, txawm tias nyob deb deb, yuav tsis raug kuaj pom kom txog thaum nws mus txog qhov chaw soj ntsuam - uas yog vim li cas qhov kev tso kawm sensor tseem ceeb npaum li kev xaiv sensor.
Localized corrosion dig muag qhov chaw: raws li tau hais los saum toj no, ER thiab LPR sensors tau tsim nyob ib ncig ntawm qhov kev xav nruab nrab uas haum rau kev xeb dav dav tab sis tau sau tseg tias tsis zoo rau kev kuaj pom cov pitting thiab crevice nres feem ntau cuam tshuam rau chloride- raug stainless hlau.
Kub thiab ib puag ncig rhiab heev: kev ntsuas hluav taws xob tiv thaiv raug cuam tshuam los ntawm qhov kub thiab txias, yuav tsum tau them nyiaj (feem ntau yog siv hluav taws xob siv hluav taws xob lossis Wheatstone choj tsim) kom tsis txhob ua yuam kev ntawm qhov kub ntawm qhov viav vias rau kev hloov pauv ntawm corrosion.
Coupling thiab installation txwv: cov pa ultrasonic sensors xav tau ib coupplant ntawm lub sensor thiab hlau nto, uas txwv ib co mounting qhov chaw; Lwm txoj hauv kev xws li sib nqus eddy tam sim no lossis roj teeb -dawb inductive UT sensors nyob qhov no tab sis tsis tshua siv dav thiab yuav raug nqi ntau dua ib kis.
Calibration thiab pov thawj: LPR-raws li tus nqi tam sim no tshwj xeeb yuav xav tau calibration tiv thaiv lwm txoj kev, xws li daim coupon poob phaus, tsim kom muaj tseeb corrosion tus nqi rau ib tug muab txheej txheem chemistry - ib tug sensor network tsis tshem tawm qhov yuav tsum tau rau tej lub sij hawm hauv av- pov thawj tseeb.
Sensor ceev thiab tus nqi: ua kom tiav kev ntseeg siab nyob rau hauv ib lub cuab tam loj (tag nrho cov txheej txheem chav tsev, ib tug ntev pipeline) nrog taw tes sensors yuav tsum tau txaus sensors, nyob rau hauv txoj cai qhov chaw, kom muaj nuj nqis statistically - nyob rau hauv -instrumenting ib tug cuab tam yuav tsim ib tug tsis ncaj ncees lawm kev nkag siab ntawm kev ruaj ntseg.
Yuav Ua Li Cas Lub Chaw Tsim Tshuaj lossis Tus Tswv Cuab Ntsuas ROI rau IoT Kev Saib Xyuas Kev Tiv Thaiv Kab Mob?
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Ntsuam xyuas ROI tiv thaiv tus nqi ntawm qhov kev soj ntsuam txuas ntxiv tiv thaiv - kev kaw tsis tu ncua, kev xau, thiab kev ua tsis tiav, ntxiv rau cov nqi ua haujlwm ntawm kev kuaj xyuas phau ntawv nws hloov - es tsis yog tawm tsam tus nqi kho vajtse ib leeg, thiab nyiam tus kws tsav dav hlau ntawm qhov siab tshaj plaws - pheej hmoo, nyuaj tshaj plaws - mus rau{5} chloride {4} qhov chaw nyob hauv cov khoom siv tsis muaj zog, cov kav dej tsis siv tau) ua ntej lub chaw ua haujlwm - dav dav. |
Cov teeb meem nyiaj txiag tshaj plaws rau IoT kev saib xyuas corrosion yog nyob ntawm cov khoom muaj nqis uas tsis pom zoo yog kim - txheej txheem kaw tsis tau, kev tso tawm ib puag ncig, lossis qhov xwm txheej nyab xeeb - thiab qhov kev tshuaj xyuas phau ntawv yog nws tus kheej kim lossis txaus ntshai, xws li CUI qhov chaw uas txwv tsis pub rub tawm cov rwb thaiv tsev, lossis nce siab thiab txwv tsis pub- qhov chaw nyob sab nraud - thaj chaw muaj kev txwv cov txheej txheem los tshuaj xyuas manually.
Cov ntaub ntawv txuas ntxiv kuj tseem txhawb kev hloov pauv ntawm lub sijhawm-raws li qhov xwm txheej- raws li kev saib xyuas lub sijhawm, uas tuaj yeem ncua kev kaw tsis tsim nyog ntawm cov khoom siv uas ua rau qeeb qeeb dua li nws daim ntawv qhia hnub-raws li kev soj ntsuam lub sijhawm kwv yees, thaum cov khoom siv hluav taws xob corroding sai dua li qhov xav tau ua ntej nws ua tsis tiav.
Raws li nrog ib qho kev tshuaj ntsuam xyuas tshiab, kev txwv kev xa tawm tsis pub dhau - ntsuas qhov teeb tsa ntawm CUI qhov chaw lossis ib qho tshuaj chloride- raug kaw thiab muab piv cov ntaub ntawv sib piv sensor tiv thaiv kev soj ntsuam tom ntej ntawm phau ntawv qhia - yog txoj hauv kev ntseeg siab tshaj plaws los ntsuas qhov tseeb ntawm ob qho tib si sensor thiab cov phiaj xwm kev ua haujlwm thiab kev poob qis kom txuag tau ntau dua ua ntej com.
Cov lus nug nquag
Q: Puas tuaj yeem IoT corrosion sensors hloov kev tshuaj xyuas phau ntawv thiab daim coupon kuaj?
A: Tsis yog. IoT sensors muab cov ntaub ntawv txuas ntxiv ntawm lawv qhov chaw teeb tsa, tab sis lawv tseem xav tau kev ntsuas raws sij hawm thiab kev pov thawj tiv thaiv daim coupon lossis phau ntawv tshuaj xyuas cov ntaub ntawv, thiab lawv tsuas yog npog cov ntsiab lus tshwj xeeb lossis kab uas lawv tau teeb tsa. Feem ntau cov kev xa tawm paub tab siv IoT sensors los txo qhov zaus thiab qhov kev soj ntsuam ntawm phau ntawv, thiab ua qhov tseem ceeb ntawm qhov kev tshuaj xyuas phau ntawv mus, tsis yog tshem tawm tag nrho.
Q: Puas yog hluav taws xob tsis kam (ER) sensors zoo ntawm kev kuaj pitting corrosion hauv stainless hlau?
A: Tsis ntseeg ntawm lawv tus kheej. ER sensors tau sau tseg nyob rau hauv corrosion{1}} saib xyuas cov ntaub ntawv raws li zoo dua haum rau dav dav, tsis zoo corrosion vim hais tias lawv nruab nrab hlau poob thoob plaws qhov chaw sojntsuam; localized pitting, uas yog qhov kev txhawj xeeb tseem ceeb rau cov tshuaj chloride-cov hlau tsis muaj steel, yog qhov zoo dua nrog cov ntaub ntawv ultrasonic thickness ntawm ntau lub ntsiab lus, coj-wave ntsuam xyuas, los yog ntau dua -sensor thiab tshuab- kev kawm txoj hauv kev tsim tshwj xeeb rau kev tshawb nrhiav lub qhov.
Q: Dab tsi yog corrosion nyob rau hauv rwb thaiv tsev (CUI), thiab yog vim li cas nws yog ib tug tshwj xeeb zoo haum rau IoT xyuas?
A: CUI yog corrosion uas tshwm sim ntawm cov kav dej insulated lossis cov khoom siv, muab zais hauv qab cov rwb thaiv tsev thiab cladding, qhov uas nws tsis tuaj yeem pom thaum lub sij hawm niaj hnub tshuaj xyuas thiab nws kim heev los xyuas manually vim tias cov rwb thaiv tsev yuav tsum tau muab tshem tawm. Txuas mus tas li nruab wireless UT los yog sib nqus eddy tam sim no sensors nyob rau hauv lub rwb thaiv tsev tso cai rau kev soj ntsuam tas li yam tsis muaj rov qab stripping thiab hloov rwb thaiv tsev, uas yog vim li cas CUI yog ib qho ntawm feem ntau hais txog kev siv cov tshuab no.
Q: Dab tsi wireless network ua kev lag luam corrosion sensors feem ntau siv?
A: WirelessHART thiab LoRaWAN yog ob lub vev xaib thev naus laus zis feem ntau siv hauv kev lag luam wireless corrosion thiab UT kev saib xyuas, xaiv rau lawv qhov ntev, siv hluav taws xob tsawg, thiab kev sib raug zoo nrog cov nroj tsuag tswj. Roj teeb - lub zog sensors ntawm cov tes hauj lwm no feem ntau ntsuas rau txog li kaum xyoo ntawm lub neej ua haujlwm.
Q: Tus txheej txheem ASTM twg tswj hwm kev saib xyuas kev tiv thaiv hauv online, thiab nws tau qhia meej li cas?
A: ASTM G96 yog tus qauv qhia rau kev saib xyuas online ntawm corrosion hauv cov khoom cog siv hluav taws xob thiab electrochemical txoj kev. Nws txhais cov kev ntsuas hluav taws xob ua haujlwm raws li Kev Ntsuas A (cov hlau tsis sib xyaw) thiab kev ntsuas polarization tsis kam raws li Kev Ntsuas B (tus nqi hluav taws xob hluav taws xob tam sim ntawd), thiab nws yuav tsum tau nyeem nrog ASTM G102 rau qhov kev ntsuas raw li cas hloov mus rau hauv kev tshaj tawm corrosion.
Cov ntsiab lus
IoT corrosion saib xyuas hloov corrosion los ntawm kev tshuaj xyuas ib ntus mus rau hauv cov ntaub ntawv txuas mus ntxiv, siv hluav taws xob tsis kam, polarization tsis kam, thiab wireless ultrasonic thickness sensors los taug qab cov hlau poob thiab corrosion tus nqi nyob ze ntawm lub sijhawm tiag tiag es tsis yog lub sijhawm teem sijhawm. Rau cov hlau tsis muaj steel tshwj xeeb, cov thev naus laus zis tus nqi yog nyob ntawm qhov sib piv sensor hom rau corrosion mechanism: general-corrosion sensors zoo li ER thiab LPR zoo haum rau cov phab ntsa nyias nyias tab sis sau tseg tias tsis muaj zog ntawm kev ntes cov hauv zos pitting thiab chloride- tsav tsheb nres uas yog stainless hlau ntau ntau tsis ua hauj lwm hom, uas yog vim li cas loj deployments txheej txheej { ultrasonic 3} cov ntaub ntawv qhia thickness, multi-sensor mus rau sab saum toj ntawm kev saib xyuas electrochemical yooj yim.
Cov lus pom tseeb tshaj plaws tshwm sim ntawm qhov nyuaj-rau- tshuaj xyuas cov khoom muaj nqis - corrosion nyob rau hauv rwb thaiv tsev, faus los yog elevated piping, thiab tsis tu ncua kev khiav hauj lwm chloride- cov cuab yeej raug tawm - qhov twg cov ntaub ntawv tsis tu ncua hloov cov nqi kim los yog kev phom sij ntawm phau ntawv tshuaj xyuas, ib txwm txhais tawm tsam ASTM G96's mus rau qhov kev pab cuam factyone hloov rau nws.
