Vim li cas thiaj xaiv Magnetic Level Gauges Over Traditional Level Meters? Kev sib piv ntawm thaj chaw xyaum

Tom qab xyoo dhau los ntawm - qhov chaw ntsuas qhov teeb meem thiab kev txhim kho cov nroj tsuag ua haujlwm hla cov chaw tshuaj lom neeg, kho kom zoo thiab kho dej, ib qho kev sib txawv tau pom meej meej: ntau thiab ntau qhov chaw yog phasing tawm ib txwm qib ntsuas hauv kev pom zoo.magnetic flapper gauges. Qhov no yuav luag tsis muaj tshwm sim vim ib tug neeg xav tau cov thev naus laus zis tshiab kawg - nws yuav luag ib txwm taug qab rov qab mus rau kev nyab xeeb dua nyob ze - nco, tsis muaj kev kho mob taub hau, lossis kev nyeem ntawv tsis tu ncua uas tsis zoo li yuav kho tau tag nrho.

Kuv tau ua hauj lwm nrog ib nrab - cov tshuaj cog qoob loo ob peb xyoos rov qab uas tau khiav ib nrab ntawm lub kaum os iav raj pom cov iav ntawm corrosive acid cia tso tsheb hlau luam. Txhua lub hlis twg peb tau hu xov tooj hais txog lub iav tawg, lub qhov tso pa tawm, lossis lub raj fugged tsis muaj leej twg nyeem tau meej. Ib lub caij ntuj no, ib qho khoom noj sov tam sim ntawd ua rau muaj kev poob siab thermal uas tawg lub iav pom ntawm 120℃acid tank. Cov nchuav tau ntim sai sai, tab sis cov kab ntau lawm tau poob rau ntau tshaj ib nrab hnub - thiab cov nqi tu thiab cov khoom ploj tau ntxiv mus rau ntau tshaj li qhov sib nqus ntsuas tag nrho yuav raug nqi ua ntej.

Qhov tseeb yog, cov cuab yeej qib ib txwm siv - iav tsom iav, ntab- daim kab xev ntsuas thiab cov txheej txheem sib txawv nruab nrab siab - tau ua haujlwm rau kev lag luam rau ntau xyoo lawm, thiab lawv tseem muaj lawv qhov chaw. Tab sis rau feem ntau cov chaw cia khoom thiab cov txheej txheem tso tsheb hlau luam, cov ntsuas qib sib nqus daws cov teeb meem tseem ceeb ntawm cov qauv qub yam tsis ntxiv qhov tsis tsim nyog. Hauv qab no, peb yuav taug kev los ntawm qhov tseeb ntawm - qhov sib txawv ntawm qhov chaw ntawm cov thev naus laus zis, qhov twg cov ntsuas hluav taws xob sib nqus xa cov nqi tshaj plaws, thiab thaum cov ntsuas ib txwm tseem yog qhov ua tau zoo dua.

Ua ntej: Dab tsi suav tias yog "Tsev Cov Meters"?

Ua ntej, cia peb theem ntawm qhov peb tab tom muab piv rau. Thaum tib neeg tham txog kev lag luam qib ntsuas rau cov kev pabcuam tank, lawv yuav luag ib txwm xa mus rau ib qho ntawm peb hom:

iav raj / reflex pom tsom iav: Ib sab iav pob tshab mounted rau sab tank, qhia cov kua theem ncaj qha. Qhov qub tshaj plaws thiab tseem siv dav tshaj plaws qis - tus nqi xaiv rau kev pabcuam yooj yim.

Float thiab daim kab xev / steel band gauges: Ib lub ntab txuas nrog ib daim kab xev hlau uas cua nyob ib puag ncig lub rub, tsav lub tshuab ntaus lossis lub txee. Feem ntau tshwm sim nyob rau hauv loj loj cia tanks.

Basic Differential siab (DP) teeb tsa: Lub tshuab xa hluav taws xob siab ntawm lub tank hauv qab siv los ntsuas qib los ntawm hydrostatic siab, feem ntau ntsia tsis tsim nyog them nyiaj.

Cov no yog cov thev naus laus zis feem ntau cov nroj tsuag txav deb ntawm thaum lawv hloov mus rau qib sib nqus ntsuas. Txhua tus muaj nws tus kheej lub zog, tab sis txhua tus tuaj nrog cov ntsiab lus mob uas tuaj yeem ua tau ntxiv rau lub sijhawm.

Sab-los ntawm-Side Comparison: Qhov twg Magnetic Gauges rub ua ntej

Cov txiaj ntsig tau pom meej meej tshaj plaws hauv rau qhov tiag - thaj chaw hauv ntiaj teb uas cuam tshuam ncaj qha rau kev nyab xeeb, kev saib xyuas haujlwm thiab cov nqi khiav haujlwm.

Kev Nyab Xeeb: Tshem tawm cov iav tawg raws li kev pheej hmoo ua haujlwm tas li

Kev nyab xeeb feem ntau yog thawj qhov laj thawj uas cov nroj tsuag rub tawm ntawm qhov kev txhim kho, thiab yog vim li cas.

Cov tsom iav tsom iav tso siab rau iav ua ib feem ntawm lub siab ciam teb. Txawm tias hnyav -lub luag haujlwm borosilicate iav tuaj yeem tawg los ntawm kev poob siab, lub siab nrawm nrawm, lossis lub cuab yeej tsis raug thaum kho. Ntawm cov tso tsheb hlau luam tuav cov nplaim hluav taws kub, cov kua tshuaj lom los yog corrosive, lub iav pom tawg tsis yog qhov xau me me - nws yog kev phom sij rau cov neeg ua haujlwm, kev pheej hmoo ib puag ncig, thiab muaj peev xwm kaw tsis tau.

Magnetic gauges tshem tawm qhov kev pheej hmoo ntawm qhov chaw. Tag nrho cov txheej txheem sab yog muaj nyob rau hauv ib tug khoom hlau bypass chamber ua rau cov txheej txheem piping thiab siab hlab ntsha codes. Qhov taw qhia flapper sab nraud yeej tsis kov cov txheej txheem dej, thiab txawm tias muaj kev cuam tshuam nyuaj rau qhov taw qhia rail yuav tsis ua txhaum txoj cai ciam teb. Rau cov tso tsheb hlau luam uas muaj kev phom sij thiab muaj zog, qhov no tsis yog kev hloov kho me me - nws yog qhov txo qis hauv kev pheej hmoo ntawm pem hauv ntej.

Cov khoom siv tshuab yooj yim kuj tsis muaj cov khoom siv hluav taws xob, yog li tsis muaj kev pheej hmoo rau kev teeb tsa hauv cheeb tsam.

Kev Kho: Ua haujlwm tsawg dua thiab tsis npaj sijhawm poob haujlwm

Cov ntsuas qib ib txwm saib pheej yig ntawm kev yuav khoom, tab sis cov nqi kho mob txuas ntxiv sai dua lawv lub neej kev pabcuam.

Cov tsom iav tsom iav khawb, huab dhau thiab tsim cov pob zeb hauv lub sijhawm. Cov nroj tsuag feem ntau xaus rau kev tu lawv txhua ib mus rau peb lub hlis, thiab hloov tag nrho cov iav los ua ke txhua ib mus rau peb xyoos raws li qhov pom kev tsis zoo lossis micro- daim ntawv tawg. Gaskets ntawm ob qho kawg degrade nrog kub cycling thiab tshuaj lom neeg raug, yuav tsum tau hloov tsis tu ncua kom tsis txhob quaj los. Float- daim kab xev ntsuas muaj lawv tus kheej cov teeb meem: daim kab xev khi, pulleys txeeb, thiab reels jam nrog plua plav thiab corrosion.

Sib nqus qib gauges yuav luag tsis muaj kev saib xyuas niaj hnub los ntawm kev sib piv. Tsis muaj iav los ntxuav, txhuam los yog hloov, thiab tsis muaj cov ntsaws ruaj ruaj nyob rau hauv cov khoom seem. Rau cov ntawv thov ua kua huv, kev saib xyuas ua rau kub hnyiab los so qhov taw qhia lub ntsej muag ib zaug lossis ob zaug hauv ib xyoos, thiab yaug lub chamber los ntawm lub qhov dej hauv qab txhua rau rau mus rau kaum ob lub hlis kom tshem tawm cov khib nyiab.

Los ntawm qhov peb tau pom nyob thoob plaws cov chaw siv khoom, lub ntsuas hluav taws xob sib nqus kom zoo yuav ua haujlwm tau zoo rau 10 txog 15 xyoo yam tsis muaj qhov hloov pauv loj. Qhov ntawd ua haujlwm rau kwv yees li 80% txo qis hauv kev ntsuas kev saib xyuas txhua xyoo piv rau cov iav tsom iav.

Kev cia siab rau hauv cov txheej txheem hnyav lossis ntxhov siab

Ntau cov txheej txheem ib txwm ua thiab hluav taws xob theem thev naus laus zis tawm tsam nrog qhov tsis sib haum xeeb hauv cov tso tsheb hlau luam. Sib nqus gauges tsis.

Tsis zoo li ultrasonic, radar lossis txawm pom cov tsom iav ncaj qha, kev nyeem ntawv qib sib nqus tsis cuam tshuam tag nrho los ntawm ua npuas ncauj, vapor, chav dej, qhov chaw turbulence lossis plua plav hauv lub tank. Lub ntab ua raws cov kua dej tiag tiag ncaj qha, thiab sib nqus sib nqus ua haujlwm tsis tu ncua txawm tias muaj dab tsi tshwm sim saum cov kua. Qhov no ua rau lawv muaj kev vam meej tshwj xeeb rau cov ntawv thov uas tsis yog - cov sensors tiv tauj tsim cov ntawv nyeem tsis raug thiab iav qhov rais pos huab ntau zaus.

Lawv tseem npog lub hnab ntawv ua haujlwm dav heev. Cov qauv stainless hlau qauv tswj cov kev ntxhov siab los ntawm lub tshuab nqus tsev mus txog 250 bar thiab kub ntawm -40℃txog 450 degree. Nrog kev cai alloy tsim, lawv tuaj yeem ua haujlwm rau cov ntawv thov cryogenic mus txog -200 degree. Qhov no ntau tshaj qhov txwv ntawm cov qauv iav tsom iav, uas sai sai ua tsis muaj kev nyab xeeb ntawm kev kub siab lossis kub kub.

Readability: Clear ntawm qhov deb, nyob rau hauv tej teeb pom kev zoo

Hauv - qhov chaw nyeem tau yog qhov ua tau zoo tab sis tsis muaj txiaj ntsig zoo uas ntxiv rau txhua qhov kev hloov pauv.

Cov iav tsom iav xav kom cov neeg ua haujlwm sawv ntsug ntawm ib sab ntawm lub tank thiab squint ntawm iav kom pom cov kua kab. Nyob rau hauv lub hnub ci ci, glare tuaj yeem ua rau theem ciam teb ze ze pom. Thaum tsaus ntuj lossis hauv thaj chaw tsaus, koj xav tau ib lub teeb nyem tuav ntawm lub kaum sab xis kom ua rau txoj kab. Rau cov kua dej tsaus lossis xim xim hnyav, cov qib yuav luag tsis paub qhov txawv.

Cov ntsuas hluav taws xob sib nqus siv siab- sib piv liab / dawb flapper panels uas yooj yim nyeem tau los ntawm 15 mus rau 30 meters deb, txawm nyob hauv tshav ntuj ncaj qha lossis teeb pom kev zoo cog. Cov neeg ua haujlwm nyob rau txhua hnub tuaj yeem saib thiab nyeem qib tam sim ntawd, tsis tas yuav tsum tau soj ntsuam ze. Qhov ntawd yuav zoo li tsis tseem ceeb, tab sis dhau ntau pua ntawm kev taug kev hauv ib hlis, nws txuag lub sijhawm tiag tiag thiab txo qis ntawm kev nyeem ntawv tsis raug.

Modular expandability yam tsis muaj txheej txheem kaw

Cov ntsuas qib ib txwm muaj feem ntau yog qhov - koj - pom - yog - dab tsi - koj - tau txais kev daws. Yog tias koj muaj qhov yooj yim iav pom iav thiab tom qab ntawd xav tau kev saib xyuas cov chaw taws teeb lossis lub tswb ntsuas, feem ntau koj yuav tsum tau ntxiv cov cuab yeej cais tawm.

Magnetic gauges yog tsim rau kev nthuav dav. Koj tuaj yeem ntxiv 4-20mA cov chaw taws teeb xa tawm, lub tswb ntsuas qib siab / qis thiab txwv cov hloov pauv txhua lub sijhawm - tag nrho cov mount sab nraud rau lub chamber phab ntsa, tsis muaj tank ntws los yog txheej txheem kaw. Qhov no cia cov chaw pib nrog cov lus qhia hauv zos thiab hloov kho mus rau kev soj ntsuam SCADA tom qab raws li kev xav tau hloov zuj zus, tsis tas hloov tag nrho cov ntsuas.

Tag nrho tus nqi ntawm kev ua tswv cuab: Pheej yig dua li 5-xyoo lifespan

Tus nqi pem hauv ntej ntawm lub ntsuas qib sib nqus yog siab dua li qhov yooj yim iav pom iav. Tab sis thaum koj tseem ceeb hauv kev saib xyuas kev ua haujlwm, hloov qhov chaw thiab kev pheej hmoo poob qis, cov ntsuas hlau nplaum yuav luag txhua zaus tawm pheej yig dua li 5 xyoo kev pabcuam.

Raws li cov ntaub ntawv sib sau ua ke rau tus qauv 1-meter industrial cia tank:

Txawm nyob rau hauv daim ntawv thov kev cia dej hauv paus, lub ntsuas hluav taws xob sib nqus them rau nws tus kheej hauv ob mus rau peb xyoos los ntawm kev txo qis ib leeg. Rau cov phom sij lossis siab siab - lub tank siab uas lub iav tsis ua haujlwm tuaj yeem ua rau ntau txhiab lub sijhawm poob lossis raug nplua, rooj plaub nyiaj txiag rau kev kho dua tshiab tseem muaj zog dua.

Thaum Cov Meters Qib Ib txwm tseem yog qhov xaiv zoo dua

Kom meej meej, cov ntsuas magnetic tsis haum rau txhua lub tank. Tsis muaj technology yog, thiab overselling lawv tsuas yog ua rau mismatched kev cia siab thiab chim siab cov neeg siv. Ib txwm ntsuas ntsuas tseem ua rau muaj kev nkag siab zoo hauv qee qhov xwm txheej:

Tsawg heev - pob nyiaj siv, cov dej huv hauv huab cua: Rau qhov yooj yim uas tsis yog- qhov chaw cia dej tseem ceeb uas tsis muaj kev pheej hmoo kev nyab xeeb, tus nqi qis - iav tsom iav yuav ua txoj haujlwm ntawm tus nqi qis tshaj.

Cov ntawv thov yuav tsum tau saib xyuas qhov muag ncaj qha ntawm cov kua dej: Yog tias koj xav pom cov xim ua kua, qhov pom tseeb lossis ua npuas ncauj ncaj qha, lub iav pom qhov rais tseem yog qhov yooj yim tshaj plaws los ua.

Cov khoom ntim khoom loj heev nrog ntau ntau yam: Rau 10+ 'meter' siab crude roj tso tsheb hlau luam lossis cov silos loj, ntab-thiab- daim kab xev lossis radar feem ntau ua rau muaj kev nkag siab ntau dua li ntau-section magnetic gauge.

Qhov tseem ceeb yog txuam cov thev naus laus zis rau qib kev pheej hmoo thiab kev ua haujlwm. Rau qhov tsis yog- tseem ceeb, qis- siab, kev pabcuam huv, cov ntsuas ib txwm siv tau zoo kawg nkaus. Rau txhua yam uas muaj kev phom sij, siab, corrosive lossis siab -kev tu, ntsuas qhov sib nqus yuav luag yeej ntawm qhov ntev - lub sij hawm tus nqi.

Yuav Qhia Li Cas Yog Kev Txhim Kho Kom Zoo Rau Koj Qhov Chaw

Xav paub yog tias kev txhim kho puas tsim nyog tus nqi them ua ntej rau koj lub tank? Nug koj tus kheej plaub nqe lus nug no. Yog tias koj teb yog rau ob lossis ntau dua, kev hloov kho yuav luag ib txwm them rau nws tus kheej sai sai:

Koj puas muaj cov dej ntws tsis tu ncua, hloov gasket lossis iav tawg ntawm koj cov ntsuas ntsuas tam sim no?

Puas yog koj lub tso tsheb hlau luam tuav cov nplaim hluav taws kub, tshuaj lom, corrosive los yog cov xov xwm uas muaj qhov xau yuav tsim kev nyab xeeb lossis ib puag ncig kev pheej hmoo?

Cov neeg ua haujlwm puas yws txog qhov nyuaj- rau- nyeem qib, tshwj xeeb tshaj yog nyob rau hnub ci lossis hmo ntuj?

Puas yog koj pab neeg saib xyuas siv sijhawm ntau tshaj li ob peb teev hauv ib lub hlis twg tu, kho lossis hloov cov twj paj nruag?

Feem ntau cov nroj tsuag uas hloov kho pom lub sij hawm them rov qab poob ntawm 18 thiab 36 lub hlis, uas tau tsav yuav luag tag nrho los ntawm kev txo cov txij nkawm thiab zam kev poob qis.

Cov lus nug nquag

Cov no yog cov lus nug uas peb hnov ​​feem ntau los ntawm cov pab pawg cog tshuaj ntsuam xyuas kev txhim kho.

Lub ntsuas hluav taws xob sib nqus puas tuaj yeem hloov lub iav pom lub iav ncaj qha?

Feem ntau, yog. Sib nqus gauges siv cov qauv flange sib txuas uas tuaj yeem ua qhov loj me kom phim cov iav ntsuas qhov ntev uas twb muaj lawm. Nrog rau qhov chaw sib xws - mus rau - nruab nrab qhov deb thiab flange rating, lawv tuaj yeem ntsia tau raws li kev poob ncaj qha- hauv kev hloov pauv yam tsis tas yuav hloov kho lub tank.

Puas yog qhov ntsuas ntsuas qib sib nqus kim dua li lub iav pom iav?

Tus nqi yuav khoom ua ntej yog siab dua - feem ntau 2–3x rau qhov sib piv ntev. Tab sis thaum koj suav nrog kev saib xyuas kev ua haujlwm, hloov qhov chaw thiab kev pheej hmoo poob qis, cov ntsuas hluav taws xob sib nqus raug nqi tsawg dua li 5 xyoo kev pabcuam.

Dab tsi yog qhov tsis zoo ntawm cov ntsuas ntsuas magnetic?

Lawv tsis ua haujlwm zoo nrog cov kua nplaum heev, coking lossis hnyav tshaj tawm xov xwm, uas tuaj yeem ua rau lub ntab ntws los ntawm lub sijhawm. Lawv kuj muaj me me sab sauv thiab qis qhov muag tsis pom qhov chaw los ntawm lub cev qhov siab ntawm ntab, thiab tuaj yeem cuam tshuam los ntawm cov hlau nplaum sab nraud muaj zog heev nyob ze.

Cov ntsuas qib sib nqus puas xav tau hluav taws xob ua haujlwm?

Qhov yooj yim pom pom ua haujlwm nkaus yam tsis muaj hwj chim - nws yog lub tshuab ua haujlwm nkaus xwb. Koj tsuas yog xav tau hluav taws xob thaiv yog tias koj ntxiv cov chaw taws teeb hloov chaw lossis lub tswb hloov pauv. Qhov no ua rau lawv nrov raws li qhov qhia txog qib thaub qab txawm nyob rau ntawm qhov chaw uas muaj hluav taws xob saib xyuas tag nrho.

Ntau npaum li cas cov qib magnetic gauges xav tau calibration?

Rau cov kev pabcuam ua kua huv, cov ntsuas sib nqus tuav lawv cov calibration zoo heev vim tias tsis muaj kev siv tshuab ntawm cov ntab thiab qhov taw qhia. Kev txheeb xyuas qhov pom txhua xyoo tiv thaiv qib paub yog feem ntau txaus. Kev hloov kho calibration loj tsis tshua xav tau hauv thawj 10 xyoo ntawm kev pabcuam.

Kev xav zaum kawg

Kev ntsuas qib sib nqus tsis tau dhau los ua - hloov kho vim lawv tshiab lossis flashy. Lawv tau nrov vim lawv kho cov teeb meem loj tshaj plaws nrog cov cuab yeej ntsuas qib qub - kev nyab xeeb kev nyab xeeb, kev saib xyuas siab thiab kev nyeem ntawv tsis txaus ntseeg - yam tsis ntxiv qhov tsis tsim nyog.

Tau kawg, cov txiaj ntsig no tsuas yog tuav thaum lub ntsuas ntsuas tau raug teev tseg rau koj cov xwm txheej hauv lub tank. Ib qho kev tawm ntawm-- chav txee nrog qhov tsis sib haum ntawm ntab ntom ntom lossis cov ntaub ntub dej tsis raug yuav tseem ua tsis tau ntxov, ib yam li lwm yam khoom siv tsis zoo.

Yog tias koj tab tom ntsuas qhov kev hloov kho rau koj lub tank qib ntsuas, lossis koj tsis paub tseeb tias cov ntsuas magnetic yog qhov haum rau koj cov txheej txheem, peb pab neeg ua haujlwm tuaj yeem pab taug kev los ntawm koj cov kev xaiv. Qhia koj lub tank qhov ntev, cov khoom nruab nrab thiab kev ua haujlwm, thiab peb yuav muab tso ua ke cov lus pom zoo rau kev teeb tsa nrog kev qhia tag nrho.

Cov ntaub ntawv

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• ASME B31.3-2022.Txheej Txheem Piping Standard. American Society of Mechanical Engineers.