Lub rhaub dej kub ua haujlwm hauv dej deionized nthuav tawm qhov sib txawv hluav taws xob phom sij dua li tib lub rhaub hauv cov dej uas muaj kua qaub. Cov dej conductivity ncaj qha cuam tshuam rau qhov kev pheej hmoo ntawm kev xau tam sim no thiab kev ntsuas kev nyab xeeb tsim nyog.
Nyob rau hauv kev lag luam thermal systems, PTFE rhaub dej conductivity yog ib qho tseem ceeb tsim parameter uas cuam tshuam rau hauv av zoo, kev tiv thaiv ntaus ntawv, thiab tag nrho cov hluav taws xob kev ruaj ntseg architecture.
Nkag siab txog cov dej conductivity hauv cov cua sov
Hluav taws xob conductivity yog hais txog lub peev xwm ntawm cov kua los nqa hluav taws xob tam sim no. Hauv cov lus pom zoo, cov kua dej uas muaj cov ions yaj- xws li cov kua qaub, cov tshuaj ntsev, thiab cov dej plating - yog cov khoom siv hluav taws xob. Txawm tias tus txheej txheem kais dej ua pov thawj ntsuas ntsuas tau vim muaj cov ntsiab lus ntxhia. Hauv qhov sib piv, cov dej deionized (DI) muaj cov conductivity tsawg heev tab sis tsis yog insulating zoo nyob rau hauv tiag tiag - ntiaj teb kev lag luam ib puag ncig.
Qhov kev sib txawv no dhau los ua ib qho tseem ceeb hauv kev siv cov cua sov uas siv hluav taws xob thiab thermal ua haujlwm nyob ze.
Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Mechanisms hauv Cov Dej Siv Dej
PTFE muab lub siab dielectric barrier, nrog lub zog dielectric feem ntau ntau dua los yog sib npaug rau 15 kV / mm, ua rau nws zoo heev hluav taws xob rwb thaiv tsev nyob rau hauv ib txwm tej yam kev mob. Txawm li cas los xij, qhov kev tiv thaiv no yog tuab- nyob ntawm thiab tsis tiv thaiv kev puas tsuaj, hnav, lossis kev tsim khoom tsis raug.
Hauv cov kua dej conductive, txawm tias qhov ua txhaum me me hauv PTFE sheath tuaj yeem tsim txoj hauv kev rau cov dej ntws mus rau hauv cov tshuaj ib puag ncig. Qhov xwm txheej no qhia txog ob qhov kev pheej hmoo tseem ceeb:
Hluav taws xob poob siab vim yog kua energized
Stray tam sim no corrosion cuam tshuam rau cov tso tsheb hlau luam, workpieces, thiab kev txhawb nqa cov qauv
Hauv kev xyaum, qhov hnyav ntawm cov kev pheej hmoo no nce ntxiv nrog cov kua dej conductivity, tshwj xeeb tshaj yog nyob rau hauv acid, alkaline, los yog plating daws qhov twg ionic concentration siab.
Kev ntsuas kev nyab xeeb rau kev coj ua ib puag ncig
Cov cai tswj kev nyab xeeb yuav tsum muaj ntau txheej txheej tiv thaiv hluav taws xob thaum lub tshuab tso cua sov siv rau hauv cov kua ua kua. Ib txoj hauv kev ua kom zoo yuav suav nrog kev sib txuas hauv av, kev kuaj xyuas qhov txhaum, thiab kev saib xyuas rwb thaiv tsev.
Kev xav tau hauv av
Tag nrho cov khoom siv hlau txuas nrog PTFE immersion heaters yuav tsum tau ua kom zoo hauv av. Qhov no ua kom ntseeg tau tias txhua qhov kev txhaum tam sim no raug coj mus rau lub ntiaj teb yam tsis muaj qhov seem hauv cov txheej txheem dej lossis cov khoom siv.
Kev siv av ua qhov tseem ceeb tshwj xeeb tshaj yog nyob rau hauv siab -cov da dej conductivity qhov twg txawm tias me me tuaj yeem ua rau ntsuas qhov ntsuas tam sim no los ntawm cov kua.
GFCI thiab RCD Kev Tiv Thaiv
Hauv av txhaum Circuit Court interrupters (GFCI) lossis cov khoom siv tam sim no (RCD) feem ntau yog siv los txheeb xyuas cov dej ntws tawm thiab txiav lub hwj chim sai.
Cov kev tiv thaiv ib txwm muaj xws li:
30 mA mus txawv tebchaws qib rau cov neeg ua haujlwm tiv thaiv kev lag luam
5–6 mA mus txawv tebchaws nyob rau hauv rhiab heev kuaj los yog siab - ib puag ncig muaj kev pheej hmoo
Cov cuab yeej no muab kev sib txuas ceev ceev thaum muaj kev puas tsuaj los yog kev puas tsuaj ntawm lub plhaub, txo qhov kev pheej hmoo ntawm kev raug mob thiab cov khoom puas.
Rwb thaiv tsev Resistance Monitoring
Kev ntsuas kev tiv thaiv hluav taws xob tsis tu ncua (kev sim megger) feem ntau yog siv los xyuas qhov tseeb ntawm lub tshuab cua sov. Kev poob qis ntawm rwb thaiv tsev qhov tseem ceeb yuav qhia tau tias ya raws, micro- tawg, lossis degradation ntawm PTFE sheath.
Kev tshawb pom ntxov tso cai rau kev tiv thaiv kev tiv thaiv ua ntej muaj teeb meem txhaum cai.
Daim ntawv teev kev nyab xeeb rau cov chav da dej
Ib txoj hauv kev ruaj ntseg rau PTFE rhaub dej conductivity ib puag ncig feem ntau suav nrog:
Kev txheeb xyuas hauv av ntawm tag nrho cov khoom siv hluav taws xob hlau thiab lub tank
Kev teeb tsa ntawm GFCI lossis RCD tiv thaiv ntawm lub tshuab hluav taws xob
Periodic rwb thaiv tsev tsis kam kuaj ntawm cov khoom cua sov
Kev tshuaj xyuas niaj hnub rau sheath puas lossis mechanical hnav
Kev siv qis- cov qauv hluav taws xob tawm hauv siab - cov kev daws teeb meem conductivity
Cov txheej txheem txheej txheej no ua kom ntseeg tau tias tsis muaj ib qho kev ua tsis tiav ua rau tsis muaj kev ua haujlwm tsis zoo.
Design Implications of Fluid Conductivity
Cov kua hluav taws xob ntau dua ua rau muaj kev pheej hmoo hluav taws xob ntawm cov tshuab cua sov hauv immersion. Raws li cov conductivity nce, qhov tseem ceeb ntawm kev kuaj xyuas qhov txhaum thiab cov av hauv av tau tshaj tawm. Hloov pauv, cov kua dej tsis zoo -conductivity tuaj yeem txo qhov kev pheej hmoo tam sim no tab sis tseem xav tau kev tiv thaiv hauv paus vim muaj kev sib kis los yog kev hloov pauv ntawm cov txheej txheem.
Yog li ntawd, kev tsim qauv kev nyab xeeb yuav tsum tau sib koom ua ke tsis yog rau kev tsim kho cua sov nkaus xwb tab sis kuj rau cov tshuaj lom neeg thiab ionic yam ntxwv ntawm cov txheej txheem kua.
Xaus
Cov kua dej conductivity ua lub luag haujlwm txiav txim siab txog kev nyab xeeb hluav taws xob ntawm PTFE immersion heater installations. Thaum PTFE muab kev tiv thaiv muaj zog dielectric, qhov system- theem kev nyab xeeb nyob ntawm qhov chaw hauv av, cuam tshuam kev cuam tshuam, thiab cov tswv yim kev tiv thaiv kev tiv thaiv kom haum rau cov txheej txheem dej.
Thaum kawg, PTFE rhaub cov kua dej conductivity xav tau qhia tias kev ua haujlwm nyab xeeb yog ua tiav los ntawm kev tsim qauv tsim los ntawm kev tso siab rau cov khoom siv rwb thaiv tsev ib leeg.
