PTFE Cov Hluav Taws Xob Hluav Taws Xob puas tuaj yeem siv rau hauv cov huab cua tawg?

Lub Hoobkas ua cov kuab tshuaj flammable. Txhua yam khoom siv nyob ib puag ncig yuav tsum raug ntsuas rau qhov chaw muaj kev phom sij. PTFE kub exchangers yog zoo heev rau corrosive chemistry, tab sis lawv puas muaj kev nyab xeeb los siv nyob rau hauv lub xub ntiag ntawm tawg vapors? Cov ntawv pov thawj dab tsi thiab cov kev xav tau ntawm kev teeb tsa?

Nyob rau hauv cov huab cua tawg, txawm nyob rau hauv Zone 1 los yog 2 rau gases los yog nyob rau hauv Zone 21 los yog 22 rau combustible dusts, yog tsis muaj chaw rau kev ua yuam kev. Ib qho chaw sov so, ib qho hluav taws xob tsis zoo, ib qho hluav taws xob zoo li qub tuaj yeem teeb tawm qhov kev puas tsuaj loj heev. PTFE heat exchangers yog zoo meej rau hnyav acids, hnyav thiab chlorides uas yuav sai sai degrade stainless hlau los yog txawv alloys. Vim lawv cov tsis yog -stick thiab chemically inert raj thiab plhaub, lawv yog cov kev xaiv rau cov txheej txheem txias los yog cua sov nyob rau hauv kws, nplua - tshuaj thiab semiconductor industries. Txawm li cas los xij, ib puag ncig uas xav tau kev tiv thaiv corrosion kuj tseem yuav tsum tau soj ntsuam tag nrho ntawm qhov kev pheej hmoo hluav taws kub nyhiab raws li ATEX Directive 2014/34/EU thiab IECEx certification schemes.

Lub tshav kub exchanger core yog tsis tshua muaj qhov chaw ntawm ignition. PTFE tsis yog -conductive thiab yuav tsis tsim lub txim nyob rau hauv ib txwm ua hauj lwm. Cov kev phom sij tiag tiag yog los ntawm cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob uas ua haujlwm rau nws, xws li chav lossis kub - cov roj hluav taws xob uas tuaj yeem ua kom sov saum npoo, ntsuas kub uas xav tau hluav taws xob, tswj cov li qub uas yuav muaj cov solenoids, thiab txawm tias qhov yooj yim ntawm cov cuab yeej hlau tsoo lub thav duab thaum tu. Piv txwv li, lub ntsuas ntsuas ntsuas tsuas yog rau qhov dav dav - siv lub hom phiaj hauv Cheeb Tsam 1 roj cua tuaj yeem tsim kom muaj qhov hluav taws xob sab hauv uas yuav txaus rau ignite ib vapor huab. Yog li ntawd, lub exchanger yuav tsum tau koom ua ke nyob rau hauv ib tug tiv thaiv lub tswv yim uas tshem tawm tag nrho cov ua tau ignition txoj kev.

Qhov kev nyab xeeb tsim yog raws li qhov txwv ntawm qhov kub thiab txias. Txhua qhov sib xyaw ntawm cov pa roj los yog hmoov av muaj qhov paub tias nws pib- qhov kub thiab txias (AIT) thiab ib txheej lossis huab cua kub kub thaum muaj plua plav. Qhov siab tshaj plaws kub ntawm qhov chaw ntawm cov txheej txheem sab thiab ntawm qhov hluav taws xob sab - nyob rau hauv qhov phem tshaj ntawm fouling, obstructed ntws los yog chav mov ntawm tag nrho cov siab - yuav tsum nyob rau hauv lub kub chav kawm ntawv kub (T1-T6) los yog tshwj xeeb AIT ntawm cov huab cua. Rau ib tug raug Zone 1 hnyav vapor nrog AIT ntawm 220 degree, lub exchanger nto yuav tsum yog ib txwm qis dua 200℃(T3 chav kawm). Oversize tshav kub-hloov cheeb tsam, muaj tseeb txaus interlocks thiab redundant kub sojntsuam yog siv los ntawm manufacturers ua qhov no. Hauv kev xyaum, qhov no feem ntau txhais tau hais tias cov dej siv hluav taws xob (steam lossis thermal oil) raug txwv los ntawm kev pom zoo tswj kev sib cais.

Cov khoom siv hluav taws xob txuas nrog lossis saib xyuas cov khoom sib pauv yuav tsum tau ua kom tiav thaj tsam - kev tiv thaiv tsim nyog. Cheeb tsam 1: Intrinsically muaj kev nyab xeeb (Ex i) kub transmitters, flameproof (Ex d) hlws ris thawv los yog nce ntxiv -kev nyab xeeb (Ex e) enclosures yuav tsum tau. Txawm tias ib qho yooj yim RTD yuav tsum muaj ATEX / IECEx daim ntawv lo nrog cov pab pawg roj (IIA, IIB, IIC) thiab chav kawm kub. Hauv ntau lub tebchaws, tsis yog- cov khoom siv hluav taws xob - tsuas yog cov khoom siv hluav taws xob sib pauv yam tsis muaj hluav taws xob txuas ntxiv - raug cais raws li cov cuab yeej siv tshuab yooj yim. Lawv tsis tas yuav tsum tau ATEX certified nyob rau hauv nws tus kheej muab lawv tsis tsim sparks, kub qhov chaw nyob rau hauv lub AIT los yog static nqi uas yuav ignite. Txawm li cas los xij, tus installer tseem yuav tsum tau ua pov thawj tias tag nrho cov kab ke haum rau cheeb tsam xav tau.

Purging thiab pressurisation muab ib theem ntxiv ntawm kev tiv thaiv rau ib puag ncig los yog ib nrab-cov chaw kaw. Yog tias koj muaj hom X lossis Y purging nrog inert nitrogen koj tuaj yeem txo qhov kev faib tawm sab hauv ntawm lub txee nrog cov cuab yeej hauv nws los ntawm Cheeb Tsam 1 mus rau tsis yog - phom sij. Tom qab ntawd koj tuaj yeem siv cov khoom siv hauv tsev. Rau lub plhaub loj-thiab-tube PTFE exchangers nyob rau hauv Zone 2, qhov infiltration ntawm flammable vapors yog tiv thaiv los ntawm ib tug mus tas li me ntsis overpressure nrog huv si huab cua los yog nitrogen, muab hais tias lub purging system nws tus kheej tau ntawv pov thawj thiab saib xyuas tsis ua hauj lwm -kev ruaj ntseg interlocks.

Kev xaiv thiab kev teeb tsa mus los ntawm kev tswj hwm niaj hnub. Ua ntej txoj kev tshawb fawb txog kev faib cheeb tsam yuav tsum tau ua los ntawm ib tus neeg tsim nyog lossis cov cai ceeb toom uas yuav txiav txim siab txog thaj chaw tshwj xeeb, pawg roj av thiab chav ntsuas kub. Tsuas yog tom qab ntawd tus txheej txheem engineer tuaj yeem xaiv PTFE exchanger nrog qhov chaw - qhov ntsuas kub uas sib npaug los yog siab dua qib ntawd. Cov tuam txhab muaj npe nrov niaj hnub no muab cov khoom siv ua ntej- tau ntawv pov thawj rau Zone 1/21 lossis Zone 2/22 nrog rau thib peb- cov txiaj ntsig kev sim ua kom pom qhov kub thiab txias nyob rau hauv qhov thaiv - ntws thiab dhau - cov xwm txheej siab. Yog hais tias lub exchanger yog muab tsis muaj hluav taws xob qhov chaw, daim ntawv pov thawj lub luag hauj lwm tsiv mus rau lub accessory package- valves, instruments thiab cabling, txhua tus yuav tsum muaj lawv tus kheej ATEX/IECEx marking. Cov ntaub ntawv yuav tsum ua kom tiav: cov ntaub ntawv pov thawj uas qhia tias PTFE yog ntshiab, vuam cav (yog siv), cov ntaub ntawv los ntawm qhov ntsuas kub ntawm qhov chaw thiab cov kev taw qhia kev teeb tsa uas tshwj xeeb hu tawm cov dej num hauv cheeb tsam.

Sib piv cov txheej txheem txheej txheem no nrog kev ntxias kom siv qhov zoo tib yam, tsis yog - ntsuas PTFE exchanger "vim nws tsuas yog yas". Cov cuab yeej zoo li no tsis muaj cov ntaub ntawv qhia txog qhov kub thiab txias, tsis muaj ntawv pov thawj qhov kub thiab txias thiab tsis muaj traceability rau kev tiv thaiv zoo li qub lossis hluav taws xob. Hauv Cheeb Tsam 1 qhov teeb tsa nws tsis yog tsis yog - ua raws thiab nws tsis raug cai thiab, qhov tseem ceeb, muaj kev phom sij. Tsis pub dhau ob peb feeb ntawm kev cuam tshuam ntws, ib qho kev tsis saib xyuas chav yuav thawb lub raj phab ntsa saum AIT. Ib qho kev sib txuas sib txuas yam tsis muaj ntawv pov thawj tuaj yeem ua rau hauv qhov kev ntsuas ib txwm muaj. Cov ntawv pov thawj uas kim dua tab sis yog tias koj muab piv rau tus nqi tawg, lub neej ploj, cov nroj tsuag puas, kev nplua nyiaj, nws tsis yog qhov sib piv.

Lub voj kev nyab xeeb raug kaw nrog kev tshuaj xyuas thiab kev saib xyuas tsis tu ncua. Cov dej nchuav ntawm cov txheej txheem combustible kua rau sab nraud ntawm lub exchanger tuaj yeem ua rau muaj kev phom sij ntxiv. Nyob rau hauv txhua rooj plaub, cov pob qij txha gasketed yuav tsum tau kuaj kev ncaj ncees. Qhov uas yuav tsum tau ua kom tsis zoo li qub, cov hlua hluav taws xob sib txuas yuav tsum tau khaws cia kom zoo. Txhua lub sensor lossis valve hloov yuav tsum yog hloov ncaj qha rau daim ntawv pov thawj thawj. Yog tias qhov 'zoo li' hloov pauv tsis xav txog Ex kos npe tag nrho daim ntawv pov thawj system tsis raug.

Txhawm rau ua kom tiav, PTFE cov khoom siv hluav taws xob tuaj yeem ua haujlwm ruaj ntseg hauv cov huab cua tawg tau hais tias txhua feem ntawm lub cev - qhov kub thiab txias, hluav taws xob txuas ntxiv, purging, cov ntaub ntawv thiab kev saib xyuas - yog tsim los rau cov qauv tseeb ntawm cheeb tsam. Daim ntawv pov thawj tsis yog cov ntaub ntawv. Nws yog kev ruaj ntseg engineering uas cov cuab yeej yuav tsis dhau los ua qhov hluav taws xob uas nws tsis tau npaj ua. Hauv cov txheej txheem kev nyab xeeb tsuas yog ib txoj cai: koj yuav tsum ua kom zoo ib puag ncig rau cov khoom siv, tsis yog lwm txoj hauv kev. Yog tias lub tswv yim no tau ua raws li, qhov sib txawv corrosion kuj ntawm PTFE hloov mus rau qhov zoo dua, tsis muaj kev pheej hmoo, ua rau cov chaw tsim tshuaj lom neeg ua haujlwm tau zoo thiab siab dua txhua yam kev nyab xeeb hauv qhov chaw nyuaj tshaj plaws.