1. Taw qhia
Tom qab ntau xyoo dhau los ntawm kev lees paub cov cuab yeej ntsuas, qhov kev tshawb xyuas qhov project thiab ntawm - qhov teeb meem ntawm qhov chaw teeb meem thoob plaws ntau pua ntawm cov chaw tsim tshuaj hauv tsev thiab txawv teb chaws, kuv tau khiav mus rau tib lo lus nug los ntawm kev yuav khoom thiab EHS engineers tas li: cov radar qib transmitters tuaj yeem ua tau raws li qhov yuav tsum tau tawg- cov qauv ua pov thawj hauv kev tsim khoom phom sij?
Hauv kuv lub sijhawm ua haujlwm ntev -, Kuv tau pom ntau qhov kev tu siab ntawm kev yuav khoom poob los ntawm kev nkag siab yuam kev tawg - cov khoom pov thawj. Ntau tus neeg ua haujlwm yuav khoom xav tias tag nrho cov khoom siv radar tuaj nrog qhov tshwm sim tawg- pov thawj kev ua tau zoo thiab xaiv pheej yig tsis yog- tawg- cov ntaub ntawv pov thawj los txiav nyiaj thawj zaug. Tom qab cov khoom tuaj txog ntawm qhov chaw, cov cuab yeej ua tsis tiav kev soj ntsuam kev nyab xeeb los ntawm cov chaw tswj hwm hauv zos, ua rau tag nrho cov khoom xa rov qab, kev yuav khoom sai thiab ncua sijhawm tag nrho cov phiaj xwm kev tsim kho. Cov nuj nqis ntxiv uas tsis tsim nyog thiab kev tsim kho stagnation tuaj yeem zam tau tag nrho los ntawm cov qauv ua ntej - kev yuav khoom kev pom zoo.
Nws yog ib qho tseem ceeb kom paub meej txog ib qho tseem ceeb hauv kev lag luam qhov tseeb ua ntej: tawg- pov thawj yog lub hom phiaj kev tsim qauv tsim es tsis yog qhov kev teeb tsa ntawmradar theem transmitters. Cov khoom lag luam uas muaj ATEX lossis IECEx tawg- cov ntawv pov thawj yog tsim los ua raws li cov txheej txheem hluav taws xob thoob ntiaj teb nruj, thaum cov radar dav dav tsuas tuaj yeem xa mus rau hauv tsis yog- chav ntsuas phom sij thiab nyab xeeb - thaj chaw tso dej txias.
Phau ntawv qhia no txheeb xyuas cov qauv kev faib cov cheeb tsam txaus ntshai thoob ntiaj teb, sib txawv radar tawg - cov qhab nia pov thawj nrog cov xwm txheej ntawm cov nroj tsuag tshuaj tiag tiag, suav nrog siab - cov cuab yeej siv ntau zaus tau sau los ntawm ntau qhov kev paub dhau los thiab muab cov tswv yim xaiv cov tswv yim. Cov ntsiab lus yog tsim los rau cov neeg ua haujlwm cog khoom siv tshuaj lom neeg los xaiv cov radar ua tau zoo thiab dhau qhov kev kuaj xyuas kev nyab xeeb yam tsis muaj kev poob nyiaj txiag poob.
2. Vim li cas Chemical Production Zones Mandate Explosion-Proof Level Instruments
Cov chaw tsim tshuaj lom neeg yog nyob ib puag ncig nrog cov kev pheej hmoo tawg tshwm sim los ntawm cov kuab tshuaj tsis zoo thiab cov khoom siv hmoov, uas ua rau muaj kev phom sij nruj hauv cheeb tsam zoning tsim raws li cov cai thoob ntiaj teb kev nyab xeeb thiab teeb tsa kev nkag mus rau txhua qhov chaw ntsuas ntsuas.
Cov khoom siv tshuaj lom neeg xws li methanol, ethanol thiab acetone volatilize yooj yim los tsim cov roj sib xyaw ua ke ib zaug xau rau hauv lub tank kaw sab hauv lossis kaw cov kev cob qhia ntau lawm. Ntau yam tshuaj tua kab thiab cov hmoov resin tuaj yeem tsim cov hmoov av hmoov av nyob rau hauv cov xwm txheej tshwj xeeb. Txhua yam teeb meem hluav taws xob tsim los ntawm cov khoom siv hluav taws xob puas tsuaj yuav tig mus rau hauv qhov hluav taws xob thiab ua rau muaj kev sib tsoo loj heev.
Kev tswj hwm kev nyab xeeb thoob ntiaj teb faib cov chaw tsim khoom rau hauv Chav Kawm I flammable gas zone thiab Class II combustible plua plav cheeb tsam raws li cov yam ntxwv nruab nrab. Cov kab ntau lawm nruab nrog cov khoom tsis tsim nyog uas tsis yog- tawg- cov cuab yeej pov thawj raug yuam kaw thiab kho kom raug thaum lub sij hawm niaj hnub soj ntsuam kev nyab xeeb.
Dhau li ntawm qhov phom sij nruab nrab ntawm qhov phom sij, kev hloov pauv ntawm qhov kub thiab txias thiab qee zaus cov kua txaws hauv kev cob qhia ntau lawm ua rau kev laus ntawm cov khoom siv hluav taws xob sab hauv. Tsis yog- tawg- pov thawj radar nrog cov kab hluav taws xob sab hauv tuaj yeem tsim hluav taws xob arcs tom qab kev laus ntawm cov khoom, tawm mus ntev - lub sij hawm zais teeb meem kev nyab xeeb rau kev ua haujlwm tsis tu ncua.
3. Peb hom radar faib los ntawm kev tawg-Cov ntaub ntawv pov thawj
Cov khoom lag luam radar raug faib ua peb pawg meej raws li kev tawg- pov thawj cov qauv tsim thiab thib peb- ntawv pov thawj tog, txhua qhov muaj feem cuam tshuam rau hauv cov chaw tsim tshuaj.
3.1 Intrinsically Safe Radar (Ex ia / Ex ib, IECEx & ATEX Certified)
Intrinsic kev ruaj ntseg tsim txwv qhov siab tshaj plaws ua hauj lwm voltage thiab Circuit Court tam sim no tsis muaj teeb meem nyob rau hauv ib txwm khiav lub xeev los yog npaj txhij txog tej yam txhaum, yog li cov khoom siv tsis tuaj yeem tsim hluav taws xob hluav taws xob txawm tias nrog luv luv Circuit Court. Ex ia sawv cev rau qhov tawg siab tshaj plaws - qib pov thawj thiab tso cai rau Zone 0 qhov chaw muaj kev phom sij tas mus li suav nrog cov ntim ntim ntim ntim ntim ntim ntim tag nrho. Ex ib cov khoom muaj ntawv pov thawj siv rau thaj tsam 1 thaj chaw uas muaj cov pa sib cuam tshuam xws li cov khoom noj reactor thiab cov seem tso tawm. Cov khoom lag luam feem ntau ntawm cov khoom no yog cov coj yoj radar, dav siv rau cov roj kom raug- ntsuas dej sib cuam tshuam ntawm me me siab - cov hlab ntsha siab.
3.2 Flameproof Enclosure Radar (Ex d Certified)
Flameproof radar adopts tuab cam khwb cia txhuas los yog stainless hlau tag nrho ntim plhaub qauv. Txawm hais tias kev puas tsuaj hauv Circuit Court ua rau me me - nplai tawg nyob rau hauv lub tsev, cov nplaim taws yuav raug kaw nyob rau hauv lub thawv thiab tsis tuaj yeem kis mus rau sab nraud kom ignite ib puag ncig cov pa taws. Cov khoom lag luam no feem ntau yog 26GHz thiab 80GHz tsis yog-kev tiv tauj radar, feem ntau ntsia rau thaj tsam 1 thiab Zone 2 cov chaw ua liaj ua teb loj nruab nrab. Raws li cov txheej txheem thoob ntiaj teb, Ex d flameproof radar yog txwv tsis pub rau nruab hauv Zone 0 qhov chaw muaj kev phom sij tas li.
3.3 Tsis yog-Explosion-Proof General Radar
Cov pa hluav taws xob radar txais yuav qhib kev tsim hluav taws xob sab hauv thiab cov khoom siv hluav taws xob zoo tib yam uas tsis muaj kev tawg tshwj xeeb - pov thawj kev kho cov qauv. Nws daim ntawv thov ntau yog nruj me ntsis txwv rau tsis yog - thaj chaw muaj kev nyab xeeb nrog rau kev cob qhia ua kom cov dej txias txias, qhib cov pas dej thiab cov cuab yeej saib xyuas sab hauv tsev hauv cov chav hauv nruab nrab. Kev txhim kho cov radar no nyob rau hauv ib cheeb tsam tsim kev puas tsuaj uas tau ua txhaum cai hauv zos saib xyuas kev nyab xeeb.
4. Cov yam ntxwv tseem ceeb txiav txim siab Radar Explosion Protection Performance
Plaub qhov kev teeb tsa tseem ceeb ncaj qha txiav txim siab qhov tawg tiag tiag - pov thawj kev ua tau zoo ntawm cov khoom radar tiav. Ntau cov tuam txhab lag luam tsis raug luam tawm kev tawg- cov cim pov thawj ntawm cov npe khoom tab sis siv cov khoom siv tsis zoo uas tsis tsim nyog los txo cov nqi tsim khoom, ua rau muaj kev tsis lees paub qhov tawg tag - pov thawj pov thawj thaum lub sij hawm thib peb - tog chaw txais.
Lub vaj tse ntawm qhov tsim nyog tawg- pov thawj radar yog ua los ntawm tuab cam khwb cia txhuas los yog 316 stainless hlau nrog meej sealing los ua khoom siv tes ua. Tej yam uas tsis yog- tawg- pov thawj radar siv nyias- phab ntsa tuag- nrum txhuas nrog xoob los ua ke qhov khoob. Thaum cov hluav taws xob hauv hluav taws xob tawg tsis sib haum, cov khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob khoob.
Certified tawg-cov ntaub ntawv pov thawj radar yog txuam nrog thawj lub Hoobkas tooj dag lossis stainless hlau tawg- pov thawj cable qog. Ordinary khoom yog nruab nrog pheej yig yas threaded connectors. Cov khoob khoob khoob ntawm cov hlua txuas tso cai rau cov roj hluav taws xob hauv qhov chaw ua haujlwm kom nkag mus rau hauv cov cuab yeej hauv kab noj hniav thiab corrode sab hauv circuits maj mam.
Internal circuit layout muaj qhov sib txawv ntawm ob qib ntawm cov khoom. Kev tawg-cov ntaub ntawv pov thawj radar yog nruab nrog qis- lub zog hluav taws xob hauv kev nyab xeeb Circuit Court nrog qhov ntsuas hluav taws xob ruaj khov thiab kev txwv tam sim no. General radar siv cov khoom siv hluav taws xob tsis muaj kev txwv tsis pub siv hluav taws xob uas yooj yim ua kom muaj zog siab - hluav taws xob hluav taws xob tom qab luv luv - Circuit Court tsis ua haujlwm.
Kev tawg raug cai- cov khoom pov thawj siv cov nplaim hluav taws kub hnyiab thiab cov khoom siv sib xyaw ua ke rau kev foob sab hauv. Ordinary radar yog haum nrog cov silicone gaskets feem ntau ua rau kev laus thiab shrinkage. Tom qab lub sijhawm ua haujlwm ntev -, kev laus sealing qhov chaw tsis tuaj yeem thaiv cov pa nruab nrab ntawm cov vapor zoo thiab ua rau muaj kev cuam tshuam hauv Circuit Court corrosion thiab cov khoom siv tsis tau npaj txhij.
5. Scenario-Raws li tawg-Cov pov thawj xaiv Radar rau cov nroj tsuag tshuaj lom neeg
Ua ke nrog ntau xyoo dhau los ntawm - chaw ua haujlwm thiab tom qab- kev muag khoom, kev taw qhia kev xaiv rau plaub lub ntsiab lus ntsuas ntawm kev lag luam tshuaj. Kaw tag nrho ntim cov kuab tshuaj cia tso tsheb hlau luam uas muaj nyob rau thaj tsam 0 thaj chaw txaus ntshai xav tau Ex ia intrinsically nyab xeeb coj yoj radar nruab nrog 316L txheej txheem txheej txheem flanges. Loj qhib chemical intermediate tank ua liaj ua teb ntog nyob rau hauv Zone 1 los yog Zone 2 zoning xaiv Ex d flameproof 80GHz uas tsis yog-hu rau radar ua ke nrog tag nrho cov matched tawg- pov thawj cable qog. Raw khoom silos khaws cia combustible hmoov yuav tsum tau Ex tD plua plav tawg pov thawj radar tshwj xeeb uas tsim los rau Class II plua plav ua hauj lwm tej yam kev mob. Circulating cooling tanks teem sab nraum cov chaw tsim khoom tsim kev puas tsuaj tuaj yeem xaiv tsis tu ncua - tawg- cov ntaub ntawv pov thawj tus qauv radar kom tsim nyog tswj qhov kev yuav khoom tus nqi.
6. Plaub Qhov Kev Them Nqi Tshaj Lij Tshaj Lij Tshaj Tawm rau Kev tawg -Cov pov thawj Radar
Kuv tau ntsib plaub qhov kev coj ua tsis ncaj ncees rau kev yuav khoom ntau zaus hauv ntau xyoo ntawm kev txhawb nqa cov khoom cog tshuaj, tag nrho cov uas yuav ua rau poob nyiaj txiag loj heev rau cov neeg yuav khoom.
Thawj qhov yuam kev yog txiav txim siab tawg- cov ntaub ntawv pov thawj tsuas yog raws li luam tawm Ex logo ntawm cov khoom lag luam yam tsis tau kuaj xyuas cov ntaub ntawv pov thawj sib raug. Qee cov khoom lag luam cuav muab cov khoom cuav pov tseg- cov cim pov thawj yam tsis muaj daim ntawv pov thawj IECEx lossis ATEX ua haujlwm, ua tsis tiav kev soj ntsuam kev nyab xeeb thiab ua rau tag nrho cov khoom siv tsis tau.
Qhov kev ua yuam kev thib ob yog npaj Ex d flameproof radar rau Zone 0 qhov chaw muaj kev phom sij ruaj khov rau cov khoom siv hluav taws xob thoob ntiaj teb. Cov lus qhia tshwj xeeb kom meej meej txwv Ex d qauv kev teeb tsa hauv cheeb tsam 0 ua haujlwm.
Thib peb, ntau tus neeg yuav khoom sib xyaw ua pa tawg - ntawv pov thawj pov thawj thiab hmoov av tawg - pov thawj ntau yam. Standard Ex d gas certified radar tsis tuaj yeem ntsia tau rau ntawm cov hmoov av combustible yam tsis muaj kev ywj pheej Class II hmoov av pov thawj.
Plaub, cov neeg yuav khoom tsuas yog tsom rau kev tawg- qib pov thawj thaum tsis quav ntsej qhov nruab nrab corrosion ntawm cov khoom nruab nrab. Cov kua qaub thiab alkaline raw cov ntaub ntawv muaj zog yuav corrode flange thiab sealing qhov chaw sai sai thiab rhuav tshem thawj qhov tawg - cov qauv pov thawj hauv ob peb lub hlis txawm tias cov khoom muaj ntawv pov thawj tiav.
7. Ntawm -Txoj Cai Txhim Kho Qhov Chaw Kom Ua Kom Muaj Kev Tiv Thaiv Txhaum Cai
Ib qho kev ua haujlwm tsis tu ncua ntawm qhov chaw ua haujlwm yuav ua rau lub Hoobkas tawg tsis zoo - cov ntaub ntawv pov thawj, peb qhov tshwj xeeb kev teeb tsa yuav tsum nruj me ntsis raws li kev tsim kho thiab kev yuav khoom.
Cov neeg siv tsuas tuaj yeem txais thawj lub Hoobkas sib tw tawg - cov ntaub ntawv pov thawj cable rau kev tsim kho. Kev hloov pauv nrog cov khoom siv yas zoo tib yam pheej yig yuav rhuav tshem lub plhaub nruj thiab ua rau tag nrho qhov tawg - pov thawj tsim nyog ntawm tag nrho cov cuab yeej.
Tsis txhob qhib radar vaj tse nyob rau hauv lub xeev powered nyob rau hauv qhov chaw muaj kev phom sij. Random disassembly hloov Hoobkas reserved flameproof matching clearance thiab ua tawg- pov thawj pov thawj poob kev cai lij choj.
Cia qhov chaw txaus ntawm qhov chaw thaiv kab hluav taws xob kom tsis txhob ntev - cov khoom siv vibration rub cov cables xoob thiab ua rau kev sib khi ua haujlwm ntawm cov qog.
8. Cov lus nug nquag nug (FAQ)
Q1: Puas yog tag nrho cov tawg - cov ntaub ntawv pov thawj radar ua haujlwm rau Zone 0 cov tso tsheb hlau luam phom sij?Tsis yog. Tsuas yog Ex ia intrinsically muaj kev nyab xeeb radar ua tau raws li Zone 0 qhov yuav tsum tau ua; Ex d flameproof radar yog txwv rau Zone1 & Zone2 thiab txwv tsis pub mus tas li Zone 0 kaw cov hlab ntsha hnyav.
Q2: Puas tuaj yeem tawg tau roj- pov thawj radar ncaj qha rau ntawm cov plua plav hluav taws xob?Tsis pub. Plua plav tawg yuav tsum muaj kev ywj pheej Ex tD daim ntawv pov thawj tsom rau Class II qhov chaw txaus ntshai; Tus qauv roj Ex d ntsuas tsis tuaj yeem npog cov plua plav tawg tiv thaiv ib qho IEC61241.
Q3: Puas yog tawg- pov thawj radar ntau tus nqi siab dua li niaj zaus tsis yog -ex radar?Tus nqi nruab nrab muaj qhov sib txawv; Ex d tsis yog -kev tiv tauj radar nqi nyob ib ncig ntawm 20% ~ 30% siab dua li cov qauv dav dav, thaum Ex ia sab hauv kev nyab xeeb coj yoj muaj tus nqi loj dua vim yog kev tsim hluav taws xob tsim. Qhov kev nqis peev me me ntxiv kom tsis txhob loj - hloov khoom siv thiab kev tsim khoom raug kaw tom qab.
Q4: Puas yuav tawg- ntawv pov thawj pov thawj ua tsis raug tom qab kev hloov kho me me ntawm lub kav hlau txais xov?Tej yam tsis tau tso cai txiav, drilling lossis hloov cov khoom hloov pauv thawj lub Hoobkas tawg -cov qauv pov thawj thiab cov ntawv pov thawj voids; tag nrho cov qauv kev hloov kho xav tau lub Hoobkas ua haujlwm kev lees paub.
9. Cov lus xaus
Radar theem transmitters tsis tuaj nrog universal tawg - pov thawj muaj peev xwm los ntawm lub neej ntawd. Kev tawg tau zoo- pov thawj kev ua tau zoo yog nyob ntawm kev muaj kev nyab xeeb ntawm sab hauv lossis flameproof structural tsim ntxiv rau ua tiav thib peb -cov ntawv pov thawj koom nrog qhov sib thooj ntawm qhov chaw muaj kev phom sij zoning.
Chemical plant procurement teams yuav tsum tau lees paub peb qhov tseem ceeb tsis ua ntej kev txiav txim tso cai, suav nrog kev faib cov khoom phom sij, nruab nrab corrosion khoom thiab yuav tsum tau ntawv pov thawj tus qauv xws li ATEX lossis IECEx. Khaws kom deb ntawm qhov tsis muaj kev lees paub qis- cov khoom cuav raug nqi los tiv thaiv kev lees paub tsis raug thiab kev tsim khoom lag luam poob. Cov qauv tsim nyog sib piv tuaj yeem txuas ntxiv radar kev pab cuam lub voj voog thiab txo tag nrho cov khoom siv kho lub neej rau kev tsim khoom.
Yog tias koj tsis tuaj yeem paub meej tias koj qhov kev cob qhia muaj kev nyab xeeb zoning tus qauv lossis xav tau ntawv pov thawj tawg - cov ntaub ntawv pov thawj radar specification txuam nrog koj cov tshuaj cog kev ua haujlwm, hu rau peb cov kws tshaj lij pab pawg rau cov lus hais thiab cov lus pom zoo.
10. Cov ntaub ntawv
- Explosion -Cov khoom pov thawj hluav taws xob rau qhov chaw muaj kev puas tsuaj, IEC 61241 & IEC 60079 International Standard
- Intrinsic Safety & Flameproof Radar Application Manual, International Society of Automation (ISA)
- ATEX Certified Radar Specification Guide, VEGA Grieshaber KG (2024)
- Chemical Plant Instrument Zoning Selection Handbook, Endress+Hauser Technical Document (2023)
- Ntiaj teb no Chemical Factory Instrument Safety Txais Specification, Industrial Automation Industry Technical Report
