Electromagnetic Flowmeter: ib txoj ntsiab cai ntawm kev txiav txim thiab metrological yam ntxwv

Electromagnetic Flowmeter - manufacturable ntaus ntawv uas yog dav siv kom haum raws li coolant txaus ntsuas tsis muaj kua thiab gaseous tshuaj. Undoubted zoo ntawm cov systems no: lub realization ntawm tus tsim nrog ib tug tsawg kawg nkaus naj npawb ntawm cov cov neeg kho tshuab ntsiab, tsis muaj hydrodynamic kuj, lub siab tshaj plaws sau npe cov neeg ntsuas.

Electromagnetic Flowmeter - hauv paus ntsiab lus ntawm cov lag luam

Devices ntawm pawg no yog nruab nrog conductors, uas, vim cov kev tshuam nrog lub magnetic teb kab ntawm kev quab yuam generated los ntawm cov electromotive quab yuam. Cov uas ua tam sim no txaus nyob rau hauv tus neeg xyuas pib perpendicular mus rau lub sib nqus teb. Hais tias regularity yog siab qhia tawm rau hauv lub thiaj-hu ua Faraday txoj cai, uas piav txog lub hauv paus ntsiab lus ntawm electromagnetic induction.

Thaum hloov cov kua txaus neeg xyuas pib, electrically conductive, npaj tswvyim, raws li uas, nyob rau hauv qhov tseeb, ua hauj lwm rau hauv lub electromagnetic flowmeter. Xws li yuav tau ntsuas nrog cov txhis los hluav taws xob hlau nplaum uas yog powered by alternating tam sim no.

Lub xab cheeb tsam yog nyob flowmeter yeeb nkab uas ua los ntawm uas tsis yog-sib nqus nonconductive khoom. Feem ntau hais tias tsam yog txawm peem rau nrog insulating inserts ntawm inert yas. Cov kev siv ntawm tej ntsiab tswj tau lub tshaj plaws yog nyeem thaum lub sij hawm cov kev ntsuas cov ua hauj lwm nruab nrab yam ntxwv.

Cov cheeb tsam ntawm lub lag luam

Nyob rau hauv dab tsi cheeb tsam ntawm lub electromagnetic flow meter siv? Cov feem ntau lug siv xws li tau txais nyob rau hauv lub account ntawm lub zog thiab dej cov kev pab. Nyob rau hauv kev, xws li yog siv nyob rau hauv lub lwm cua sov tshuab.

Tam sim no, lub electromagnetic flowmeter yog dav siv nyob rau hauv biochemical, metallurgical thiab khoom noj khoom haus industries. Los ntawm kev siv cov cuab yeej nyob hauv pawg no resort siv tuam txhab uas muag, ore-hnav khaub ncaws Enterprises, kev kho mob hauv tsev.

Electromagnetic Flowmeter yog indispensable rau lub koom haum ntawm lub uas tsis siv neeg tswj ntawm kua txaus, qhov twg lub ntsiab lub luag hauj lwm no yog ua si los ntawm cov neeg kawm ntawv ntawm kev ncua ntsuas ntsuas. Thov lub ntaus ntawv rau kev nrhiav fast-hloov cov nqi ntawm cov kua thiab gaseous tshuaj.

metrological kev ua yuam kev

Raws li qhia los ntawm ntev-lub sij hawm xyaum ntawm cov lag luam ntawm xab pab kiag li lawm nrog ib tug qhov magnetic teb, lawv nruab nrab yuam kev yog hais txog 1-2.5%. Hais tias rho tawm yog ces yuav tsum thaum ntsuas ntsuas slabopulsiruyuschih xov xwm. Nyob rau hauv cov ntaub ntawv no, feem ntau muaj ntxiv uas tsis tshwm sim los ntawm lub polarization ntawm electrodes protrudes, uas muaj feem xyuam rau cov kuj hloov converter ntaus ntawv.

Txo feem pua metrology uas tsis nyob rau hauv lub khiav meters nrog ib tug qhov magnetic teb muaj txhawb rau lub realization ntawm tsim thiab kalomelievyh carbon electrodes los yog platinum hlau thiab lub tantalum txheej.

Nrog hais txog pab kiag li lawm kuj tsis paub meej magnetic teb yog tsis tuaj kiag li polarization ntawm lub electrodes, uas yuav ua rau kom raug nyob rau hauv cov nuj nqis. Txawm li cas los, xws li yog lwm yam teebmeem uas distort lub teeb liab:

1. Transformer nyhuv - thaum lub sij hawm tso cai ntawm lub kua conductors uas tsim lub coils, lub txuas thaiv thiab electrodes tsim ib tug transformer electromotive quab yuam. Pab kom txawm peem rau qhov kev txiav txim nyob rau hauv lub xab Circuit Court nrog txaus alternating magnetic teb nrog mus tas li hlau nplaum yog tswvcuab switchable tam sim no compensating Circuit Court yog.
2. Lub capacitive nyhuv - tshwm sim vim ib tug tseem ceeb tej zaum qhov sib txawv ntawm kev twb kev txuas thaiv thiab lub system lub luag hauj lwm rau hauv lub tsim ntawm magnetic teb. Cov uas tsis nyob rau hauv cov ntaub ntawv no yog compensated los ntawm ceev faj ntsuam xyuas ntawm lub ntsiab.

Verification of electromagnetic flowmeters

Yuav ua li cas mus ua calibration ntawm electromagnetic flowmeters? Qhov tseem high-precision txoj kev ntawm no yog cov zoo li qub uas (hnyav txoj kev). Yuav kom siv cov heev dos yog siv thiab cov shutoff valve uas ua hauj lwm nyob rau hauv lub "pib-stop" hom.

Nyob rau hauv lub chav kawm ntawm lub net luj ntawm cov ua hauj lwm kua yog txiav txim raws li lub thawv ceeb thawj kev ntsuas ua ntej thiab tom qab sau nqe vaj lug kub ntawm cov kua los ntawm lub flowmeter rau ib lub sij hawm luv.

Qhov zoo ntawm txoj kev los xyuas ua:

• cov neeg ntawm kev ntsuas ntawm lub normalized ndlwg nqi;
• tau correlation tau nrog qhov tseem ceeb coj mus rau lub xeev txoj cai;
• tau calibration ntawm lub flowmeter uas ua hauj lwm nrog kub kua;
• txheej txheem automation.

hom flowmeters

Nyob rau hauv tas li ntawd mus electromagnetic flowmeters, muaj lub widest ntau yam ntawm lwm yam pab kiag li lawm ntsuas cov yam ntxwv ntawm cov ua hauj lwm xov xwm ntws los ntawm pipelines. Tam sim no, raws li nyob rau hauv lub hauv paus ntsiab lus ntawm cov lag luam yog cov nram no pab pawg neeg ntawm pab kiag li lawm:

• thermal;
• ultrasound;
• eddy;
• Coriolis;
• txhua yam;
• mikroraskhodomery.

Tom ntej no, seb lub peculiarities ntawm txhua hom ntawm electromagnetic flowmeter.

Thaum tshav kub kub khiav meters

Lub hauv paus ntsiab lus ntawm cov lag luam yog ua raws li nyob rau lub zos kev hloov ntawm cov thaj chaw ntawm cov ua hauj lwm kua, e.g., nyob rau hauv ib tug kwj kub, ua raws li los ntawm kev ntsuas ntawm indicators nyob rau tej thaj chaw deb chaw nres tsheb los ntawm tej yam site. Qhov no txoj kev tswj lub xam ntawm qhov nruab nrab kev ceev ntawm lub conductive khoom paths.

Ib yam li ntawd yuav hloov cov yam ntxwv lwm yam, e.g., tshuaj muaj pes tsawg leeg. Txawm li cas los, nyob rau hauv Feem ntau, qhov no mus kom ze yog tsis tsim nyog, ntau zaus yog tias tsim nyog lag luam khiav nyob rau hauv tsev kho mob.

ultrasonic flowmeters

Cov hauj lwm ntawm no hom ntawm pab kiag li lawm ua rau cov muaj peev xwm ntawm lub suab tsis kis tau nyob rau hauv lub mobile ib puag ncig. By paub qhov uas ultrasound thiab cov receiver yuav txiav txim rau cov ua hauj lwm kua txaus tus nqi raws li cov ntsuas tsiv mus nyob ib yam wavelength luv.

vortex flowmeters

Nyob rau hauv pab kiag li lawm ntawm qhov kev npaj no lub ntsiab haumxeeb caij yog ib tug kheej kheej los yog disc-zoo li tus lub hom phiaj. Nthuav dav yog tsau mus rau qhov chaw ruaj bungee. Thaum dhau los ntawm lub system ua hauj lwm nruab nrab khiav li cas rau lub hom phiaj, uas ua rau yus nws xaav. Qhov no, nyob rau hauv lem, ua rau lub cable deformation, kev hloov nyob rau hauv uas yog tsau nrog tshwj xeeb lim gauges. Cov ntaub ntawv tau txais yuav pab tau ib tug txiav txim txog cov kev taw qhia thiab ntws tus nqi ntawm lub substance.

Coriolis

Structurally, xws li muaj ib tug raj, uas yog raug rau deeg uas xeeb los ntawm cov sab nraud oscillator. Nyob rau hauv lub qhaj ntawv ntawm cov kua hauv lub cev ua rau lub simultaneous oscillation ntawm tag nrho cov acceleration raj feem. Nrog rau cov zaj therethrough kua los rau hauv kev txiav txim thiaj li hu ua Coriolis quab yuam, uas yog qhia nyob rau hauv opposite qhia rau cov tswv yim thiab tso zis khiav ntawm lub substance. Qhov no hloov lub sij hawm ntawm lub conductive raj co thiab ua rau nws ua tau rau sau tus tsim nyog tsis.

Mikroraskhodomery

Qhov no pab pawg neeg ntawm xab pab kiag li lawm muaj xws li flowmeters, uas txawv tej yam me me los tsim. Qhov ntev ntawm ib tug ntaus ntawv tshwm sim los ntawm nws tau. Cov pab kiag li lawm raws li cov kev xav tau ntawm kev kho mob thiab tsev qhauj rau zus tau tej cov tshuaj cov khoom.

Raws li lub hauv paus ntsiab ntawm kev txiav txim, txhua tus tej yam me me ntaus ntawv yog ib tug pa flow meter - electromagnetic counter. Txawm li cas los, vim rau qhov tseem ntawm kev khiav hauj lwm nyob rau hauv cramped tej yam kev mob rau tus nqi ntawm xws li yog ntau dua.

cov neeg kho tshuab flowmeters

Cov hais tias pab pawg neeg muaj pab kiag li lawm structurally devoid ntawm hluav taws xob Cheebtsam. Cov nqi ndlwg yog ntsuas los ntawm tus ntawm ib puag ncig rau tus neeg kho tshuab turbine.

Dua li ntawm qhov tsim nyog tus nqi ntawm xws txaus meters thiab lawv yog cov neeg yoojyim npaum li cas yuav tsum tau kawm. Lwm disadvantage protrudes siv mus qhov chaw, uas yuav ua tau ib qho chaw khuam nyob rau hauv txoj kev ntawm gaseous los yog kua tshuaj. Txawm li cas los, nyob rau hauv cov kev phem ntawm no disadvantage, neeg kho tshuab flowmeters yog heev lug siv nyob rau hauv tsev neeg tej yam kev mob raws li tsim nyog noj mus rau hauv tus account lub dej ntws.

Electromagnetic Flowmeters - ntau cov qauv

Cia saib demanded electromagnetic flowmeters, uas yog feem ntau nyob rau hauv coob nyob rau hauv lub domestic kev ua lag luam.

Electromagnetic Flowmeter "STEM" no yog los ntsuas lub ntim thiab ndlwg ntawm electrically kev kua. Indications muaj tso tawm rau lwm tus, yooj yim rau ib tug neeg rau npe unit. Xws li yog haum rau siv nyob rau hauv loj industrial ceg, yog siv rau cov txij nkawm ntawm vaj tse nyob thiab communal cov kev pab cuam (muaj dej metering systems thiab tshav kub).

Promag electromagnetic flowmeter sau npe ntsuas nrog kub tej kev kawm. Nws yog ib tug complex haumxeeb hluav taws xob ntaus ntawv. Siv feem ntau raws li ib feem ntawm modular lug nyob rau hauv qhov kev siv ntawm high-tech dab nyob rau hauv muaj tej qhov chaw.

"Piterflou" - electromagnetic flowmeter tsim dab tsi rau hauv lub ntim thiab lub volumetric tus nqi ndlwg ntawm kua thauj los ntawm lub raj dej. Cov pab kiag li lawm ntawm cov hom no muaj nyob rau hauv kev thov nyob rau hauv lub teb ntawm lub hwj chim engineering, vaj tse nyob thiab communal cov kev pab cuam nyob rau hauv lub lag luam. Yus nta ntawm cov seev ua si: kev tso kawm ntawm hluav taws xob khoom nyob rau hauv ib tug nyias muaj nyias ib, zoo-tiv thaiv vaj tse, cov nyob rau ntawm kev tiv thaiv tiv thaiv tsis tau tso cai nkag, qhov kev siv ntawm cov neeg siv-phooj ywg graphical zaub nrog backlight.

Electromagnetic Flowmeter "ERSV sawv" yog tam sim no feem ntau ua tsev ris rau vaj tse nyob thiab pej xeem hlauv taws xob. Haum rau kev sau npe rau hauv lub ntim txaus ob leeg txias thiab dej kub.

Electromagnetic Flowmeter "sawv" tsiag ntawv los ntawm kev qhaj ntawv ntawm siab tsis ntsuas rau seem ntawm lub raj dej tsis xav tau rau nruab ntxiv cov ntxaij lim dej. kev kawm ntawv yuav tsum teev saum lub zaus, mem tes los yog logic tso zis, nyob ntawm seb cov kev xav tau ntawm tus neeg siv. Flowmeter "sawv ER" muaj ib tug muaj nuj nqi ntawm solenoid tswj muab nchuav conduit. Lub tsuas comparative disadvantage ntawm xws tshuab yog ib tug tsim nyog installation rau ncaj seem.

Nyob rau hauv xaus

Raws li yuav pom, electromagnetic flowmeter ua heev leej haumxeeb ntsuas ntaus ntawv. Primary transducers xws li tsis comprise inwardly extending yeeb nkab hais, qhov chaw thiab textural profile txwv. Tej yam no muab yam tsawg kawg nkaus kev ua yuam kev nyob rau hauv lub readings. Ntawm lwm yam, electromagnetic pab kiag li lawm cia rau tu thiab txij nkawm tsis muaj disassembling lub piping system Cheebtsam.