Kev piav qhia ntxaws ntawm daim tawv nqaij hluav taws xob cua sov txoj cai

Kev piav qhia ntxaws ntawm daim tawv nqaij hluav taws xob cua sov txoj cai

Lub ntsiab ntawm daim tawv nqaij nyhuv cua sov yog lub attenuation ntawm electromagnetic tsis nyob rau hauv ferromagnets, thiab hloov dua siab tshiab ntawm feem ntau hluav taws xob zog rau thermal zog nyob rau hauv daim ntawv ntawm eddy tam sim no los ntawm electromagnetic induction txheej txheem.

Cov tawv nqaij hluav taws xob hluav taws xob hluav taws xob hluav taws xob tau piav qhia yooj yim xws li: tus neeg xyuas pib insulated (daim tawv cable) yog threaded hauv cov yeeb nkab ferromagnetic steel, thiab ib kawg (kawg) ntawm lub cable txuas mus rau qhov kawg (kawg kawg) ntawm cov yeeb nkab steel. AC lub zog yog dhau los ntawm qhov pib ntawm lub cable thiab pib ntawm cov yeeb nkab steel, thiab tam sim no ntws los ntawm qhov pib ntawm lub cable mus rau qhov kawg, thiab tom qab ntawd rov qab los ntawm qhov kawg ntawm cov yeeb nkab steel mus rau qhov pib ntawm cov yeeb nkab steel. Thaum tshav kub kub generated los ntawm hysteresis poob W1 thiab eddy tam sim no W2 ntawm cov yeeb nkab steel vim yog induction ntawm alternating magnetic teb nyob ib ncig ntawm lub cable los ntawm cov yeeb nkab, nrog rau cov cua sov ntxiv generated los ntawm lub kaw Circuit Court tam sim no nyob rau hauv cov yeeb nkab steel, yog cov kuj. Thaum tshav kub kub W3 ntawm cov tub ntxhais cable nws tus kheej.

Yog li kev suav ntawm tag nrho cov cua sov dissipation tuaj yeem qhia tau tias:

W=W1+W2+W3

=Δ H · dB+I2 · RF+I2 · RCu

Nyob rau hauv qhov kev sib npaug saum toj no: Δ H · dB yog lub voj kev sib txuas ntawm lub voj voog hysteresis hauv lub voj voog sib nqus;

Kuv yog tam sim no ntawm kab rov qab;

RF yog lub voj impedance, uas dissipates lub zog nyob rau hauv daim ntawv ntawm eddy tam sim no;

RCu yog qhov tseem ceeb ntawm daim tawv nqaij cable.

Nyob rau hauv qhov kev txiav txim ntawm qhov rov qab tam sim no ntawm cov yeeb nkab thiab cov yeeb nkab steel, qhov tam sim no yog concentrated rau sab hauv ntawm cov yeeb nkab steel. Qhov tshwm sim no yog hu ua cov nyhuv ntawm daim tawv nqaij nyob rau hauv cov nqe lus ntawm qhov sib thooj nyhuv, yog li cov hluav taws xob cua sov system tsim raws li qhov tshwm sim no yog hu ua daim tawv nqaij nyhuv hluav taws xob cua sov.

Schematic daim duab ntawm daim tawv nqaij nyhuv tshav kub tracing system (ob kab kis kab mob)

Cov yam ntxwv ntawm daim tawv nqaij hluav taws xob cua sov

Cov tawv nqaij tam sim no cua sov raj yog ua los ntawm cov yeeb nkab steel, uas muaj cov qauv yooj yim thiab ruaj khov.

Ø Tsim nyog rau kev siv hluav taws xob hluav taws xob ntawm cov kav xa hluav taws xob ntev ntev, lub chaw tso hluav taws xob muaj peev xwm muab cov cua sov taug qab rau cov kav dej ntev txog 24km thiab tuaj yeem siv los ntawm cov khoom siv hluav taws xob high-voltage high-voltage.

Ø Cov xaim siv cov ntaub ntawv rwb thaiv tsev thiab cov ntaub qhwv nrog cov cua sov ua haujlwm, uas muaj lub neej ntev dua li cov cables zoo tib yam.

Nws yog ib qho yooj yim mus cuag hluav taws xob automation tswj, thiab qhov tseeb xyuas, ntsuas, thiab teeb liab kis technologies yuav siv tau rau qhov system no.

Ø Kev saib xyuas haujlwm yog me me. Nyob rau hauv cov ntaub ntawv ntawm kev puas tsuaj rau cov xov hlau nyob rau hauv daim tawv nqaij tam sim no cua sov raj, tsuas yog qhib lub zos rwb thaiv tsev txheej thiab hloov cov xov hlau los kho, tsis tas yuav tsum tau loj-scale disassembly ntawm rwb thaiv tsev txheej.

Cov tawv nqaij tam sim no cua sov tube tuaj yeem ua tau prefabricated thiab txuas rau ntawm qhov chaw hauv lub Hoobkas, lossis ncaj qha tsim nyob rau hauv staggered yam ntawm qhov chaw.

Txoj cai tam sim no faib cov nyhuv ntawm daim tawv nqaij

Rau cov nyhuv ntawm daim tawv nqaij, cov qauv kev faib tawm tam sim no nyob rau saum npoo ntawm tus neeg xyuas pib tuaj yeem muab tau los ntawm electromagnetic teb txoj kev xav raws li hauv qab no:

• •

Hauv cov qauv, △ thiab △ 0 yog qhov ceev tam sim no ntawm X nrug ntawm qhov chaw thiab ntawm qhov chaw (X=0), feem; C yog qhov ceev ntawm lub teeb; ρ Qhov hluav taws xob resistivity ntawm ib tug neeg xyuas pib lossis workpiece (Ω. cm); Ur yog tus txheeb ze sib nqus permeability; F yog qhov zaus

Nws tuaj yeem pom tau tias qhov ceev tam sim no txo ​​qis nrawm los ntawm saum npoo mus rau qhov chaw hauv kev kwv yees qhov muaj nuj nqi.

Www.superbheater.com