Dab tsi yog qhov kev siv tsis raug ntawm cov khoom siv roj thiab yuav ua li cas kom tsis txhob muaj lawv
Raws li peb txhua tus paub, cov cuab yeej ntsuas roj yog cov cuab yeej siv los ntsuas qhov kev hloov pauv ntawm cov pa phem hauv qhov chaw ua haujlwm. Txawm li cas los xij, hauv kev siv cov cuab yeej siv roj, yuav muaj teeb meem ntawm kev siv tsis tau lossis puas. Thaum xaiv cov chaw tsim khoom muaj npe nrov, cov yam ntxwv zoo tsuas yog ib feem, thiab feem ntau yog tshwm sim los ntawm kev xaiv thiab siv tsis raug. Yog li dab tsi yog qhov kev xav tsis zoo ntawm cov khoom siv roj?
1, Kev lees paub tsis meej: Kev sim nrog cov pa roj siab siab
Kev tsom xam: Ntau tus neeg muas zaub nyiam randomly sim siab concentration gases thaum lub sij hawm txais, uas yog heev imprecise thiab yuav yooj yim ua rau instrument puas. Kev tshawb nrhiav ntau yam ntawm cov khoom siv hluav taws xob hluav taws xob yog 0-100% LEL, uas yog ib qho qis qis qis (siv methane ua piv txwv, 0-5% vol), thaum cov roj sib zog yog high-purity butane, nyob deb tshaj qhov nrhiav tau ntau yam ntawm cov roj combustible detector!
Thaum siv cov roj sib zog rau kev sim, lub sensor yuav raug rau 2-3 zaug lossis ntau dua qhov kev cuam tshuam, uas tuaj yeem ua rau muaj kev cuam tshuam thaum ntxov lossis tsis ua haujlwm ntawm cov tshuaj lom neeg ntawm cov ntsiab lus, ua rau txo qis hauv kev tshawb pom qhov tseeb thiab rhiab heev; Yog tias nws hnyav heev, lub platinum hlau yuav raug hlawv thiab lub sensor yuav raug muab pov tseg. Nws yuav tsum tau muab sau tseg tias sensor tsis ua hauj lwm tshwm sim los ntawm high concentration gas shock tsis tau guaranteed los ntawm cov chaw tsim tshuaj paus thiab yuav tsum tau hloov nws tus kheej.
Cov ntsiab lus: Tsis txhob siv lub teeb deflation los kuaj cov khoom siv hluav taws xob hluav taws xob! Gas detectors yuav tsum tsis txhob muaj siab concentration shocks, thiab kev ua hauj lwm yuav tsum tau soj ntsuam siv cov qauv roj rau kev ntsuam xyuas. Ib yam li ntawd, cov pa roj carbon monoxide yuav tsum zam kom tsis txhob muaj cov pa roj ntau ntau.
2, Kev ntseeg yuam kev hauv kev xaiv: Cov Khoom Siv Hluav Taws Xob raws li Kev Ntsuas Hluav Taws Xob
Kev tsom xam: Feem ntau cov khoom siv hluav taws xob hluav taws xob nyob hauv khw siv lub hauv paus ntsiab lus catalytic combustion, uas siv cov roj combustible los tsim kom muaj qhov kub thiab txias tsis muaj hluav taws kub ntawm cov khoom siv catalytic. Lub tshav kub ntawm combustion ua rau qhov kub ntawm cov khoom nce, yog li nce lawv cov nqi tiv thaiv. Qhov kev hloov pauv ntawm tus nqi tiv thaiv tau raug kuaj pom los ntawm tus choj Wheatstone kom ua tiav lub hom phiaj ntawm kev kuaj xyuas cov concentration ntawm cov roj hluav taws xob.
Txawm hais tias nyob rau hauv txoj cai, ntev npaum li nws tuaj yeem hlawv thiab tso tawm cua sov, nws tuaj yeem kuaj pom, nws feem ntau hais tias catalytic combustion sensors tuaj yeem ntsuas qhov ntsuas qhov hluav taws xob.
Txawm li cas los xij, catalytic combustion sensors tsis haum rau ntsuas cov saw ntev alkanes, xws li roj av, diesel, aromatics, thiab lwm yam nrog cov ntsiab lus siab. Cov tshuaj uas muaj ntau tshaj 5 carbon atoms, xws li benzene, toluene, thiab xylene, tshwj xeeb tshaj yog hydrocarbons nrog benzene nplhaib qauv, muaj zog carbon chains uas nyuaj rau tawg thaum lub sij hawm catalytic combustion, ua rau tsis tiav combustion. Cov molecules tsis tiav yuav sau rau ntawm qhov chaw ntawm cov hlaws catalytic, uas ua rau "carbon deposition" thiab cuam tshuam cov combustion ntawm lwm cov molecules. Thaum cov pa roj carbon deposition nce mus txog ib theem, cov roj combustible yuav tsis muaj peev xwm ua kom muaj kev sib cuag nrog catalytic hlaws dai, ua rau insensitivity los yog txawm unresponsiveness nyob rau hauv kev tshawb nrhiav. Qhov no yog txiav txim los ntawm cov khoom ntawm lub sensor nws tus kheej, uas yog ib qho kev xaiv ua ntej yuam kev.
Cov ntsiab lus: Cov pa roj carbon monoxide feem ntau xws li benzene, cawv, lipid, amine, thiab lwm yam tsis haum rau kev tshawb nrhiav siv catalytic combustion txoj cai, thiab PID photoionization txoj cai yuav tsum tau siv los kuaj xyuas. Ua ntej yuav khoom siv roj av, nws yog ib qho tseem ceeb uas yuav tau sab laj nrog lub tuam txhab cov khoom kom tsis txhob muaj qhov yuam kev zoo sib xws.
3, Kev siv tsis raug: Kev hloov pauv tsis raug cai ntawm kev siv ib puag ncig
Kev tsom xam: Lub tshuab ntsuas roj yog tsim los ntsuas cov roj concentration qhov tseem ceeb hauv ib puag ncig, thiab kev ntsuas online ntawm hydrogen sulfide concentration hauv cov kav dej yog kev hloov pauv ntawm kev siv ib puag ncig. Lub sensor ntawm hydrogen sulfide gas detector yog raws li lub hauv paus ntsiab lus ntawm electrochemical, thiab cov degree ntawm electrolyte poob yog zoo correlated nrog cov concentration ntawm hydrogen sulfide nyob rau hauv ib puag ncig. Cov ntsiab lus hydrogen sulfide ntau dua, qhov ceev ntawm electrolyte noj thiab nws lub neej luv dua. Nyob rau hauv ib puag ncig ib puag ncig, qhov concentration ntawm hydrogen sulfide yog 0, thiab tsuas yog xau yuav haus cov electrolyte, yog li lub neej yuav ncav cuag 1-2 xyoo. Hydrogen sulfide tsis tu ncua nyob rau hauv cov raj xa dej, thiab cov electrolyte tau noj tas li, zoo heev txo lub neej ntev.
Xaus: Gas detectors yog haum rau ib puag ncig kom paub. Thaum siv rau kev txheeb xyuas hauv online ntawm cov kav dej, nws yog ib qho tsim nyog los sab laj cov chaw tsim khoom thiab tsis txhob hloov qhov chaw siv yam tsis muaj kev tso cai.
4, Kev saib xyuas tsis zoo: tsuas yog siv yam tsis muaj kev saib xyuas
Kev tsom xam: Gas detectors belongs rau cov cuab yeej ntsuas, thiab yuav tsum tau calibration tsis tu ncua los xyuas kom meej qhov tseeb ntawm lawv nrhiav tau. Txhua lub tshuab ntsuas roj yuav muaj kev cuam tshuam tom qab siv mus ntev, thiab yog tias tsis ntsuas raws sijhawm, qhov yuam kev yuav nce ntxiv, ua rau muaj kev nyab xeeb. Raws li cov kev cai, qhov siab tshaj plaws lub voj voog ntawm cov roj ntes yuav tsum tsis pub tshaj ib xyoos, thiab cov tuam txhab lag luam nrog cov tuam txhab metrology tshwj xeeb raug pom zoo kom tsis pub dhau peb lub hlis. Lub calibration ntawm gas detectors yuav tsum tau ua los ntawm cov kws tshaj lij.
Xaus: Kev yuav khoom thiab txhim kho lub ntsuas roj tsis tas yuav lav nws qhov kev siv ib txwm muaj. Nws yuav tsum tau hloov kho thiab khaws cia tsis tu ncua yav tom ntej. Yog tias muaj teeb meem tshwm sim, hu rau lub tuam txhab khoom tam sim ntawd thiab tsis txhob kho koj tus kheej. Tsis txhob muaj teeb meem me me uas tuaj yeem ua rau muaj kev puas tsuaj loj vim kev tsis saib xyuas.
