Cov teeb meem dab tsi tshwm sim tshwm sim thaum siv cov khoom siv hluav taws xob hluav taws xob?
Cov khoom siv hluav taws xob hluav taws xob feem ntau yog siv hauv kev lag luam petrochemical uas muaj cov roj hluav taws xob, xws li roj av, roj av, thiab tshuaj lom neeg kev lag luam. Lawv tuaj yeem siv los txheeb xyuas seb puas muaj cov xau txaus ntshai hauv qhov chaw sab hauv thiab sab nraum zoov, thiab tseem yog cov cuab yeej tseem ceeb los ua kom muaj kev nyab xeeb ntawm tus kheej thiab kev nyab xeeb ntawm kev tsim khoom. Yog tias kuaj pom cov roj combustible nyob rau hauv ib qho chaw tshwj xeeb, lub tshuab ntes yuav hloov cov roj teeb liab mus rau qhov hluav taws xob thiab cov teeb liab tam sim no kom xa mus rau lub tswb ntsuas. Thaum kawg, qhov ntsuas yuav cia li tso saib qhov concentration tus nqi ntawm qhov txo qis ntawm cov roj combustible. Thaum cov neeg ua haujlwm hnov lub suab thiab lub tswb ceeb toom, lawv yuav siv qee qhov kev ntsuas kev nyab xeeb los tiv thaiv qhov tshwm sim ntawm kev sib tsoo tawg. Tseem muaj ntau yam teeb meem thaum xaiv ntau yam khoom siv roj av, thiab cov teeb meem tshwj xeeb feem ntau suav nrog:
1. Kev kuaj xyuas cov roj hluav taws xob yog qhov tseem ceeb tshaj qhov ntsuas roj;
2. Kev kuaj xyuas cov pa roj uas yuav ua rau mob hnyav yog qhov tseem ceeb tshaj qhov kev kuaj xyuas cov pa roj uas yuav ua rau nws.
Raws li cov lus qhia uas tau kawm los ntawm ntau qhov kev sib tsoo tawg tshwm sim los ntawm cov pa roj combustible, tib neeg tseem ceeb heev rau kev tshawb nrhiav roj combustible. Nws tuaj yeem hais tau tias nyob rau hauv ib qho chaw petrochemical lossis tshuaj lom neeg, feem ntau ntawm cov khoom siv phom sij yog LEL detectors. Txawm li cas los xij, tsuas yog siv cov cuab yeej LEL tseem nyob deb txaus los tiv thaiv kev nyab xeeb thiab kev noj qab haus huv ntawm cov neeg ua haujlwm tiag tiag. Nws tsis tuaj yeem tsis lees paub tias feem ntau cov pa hluav taws xob tsis zoo yog cov roj hluav taws xob sib txuas, tab sis catalytic combustion based combustible gas detectors (LELs) tsis yog ib qho kev xaiv rau kev kuaj xyuas tag nrho cov roj combustible. Nws yog tsim tshwj xeeb rau kev kuaj methane, tab sis nws qhov kev tshawb nrhiav kev ua tau zoo rau lwm yam tshuaj tsis zoo. Yog li, qhov kev txwv qis qis ntawm cov roj hluav taws xob uas tsis yog methane uas lawv tuaj yeem ntes tau ntau dua li lawv qhov kev tso cai.
Thaum siv lub ntsuas hluav taws xob hluav taws xob kom raug, peb yuav tsum ua tib zoo xav txog cov xwm txheej tshwj xeeb ntawm daim ntawv thov.
Ua ntej, raws li cov xwm txheej tshwj xeeb xws li cov kev taw qhia airflow thiab cua kev taw qhia ntawm qhov chaw, txiav txim siab cov ncauj lus kom ntxaws txog hom ntawm cov roj combustible thaum muaj qhov xau.
Qhov thib ob, ua tib zoo kawm txog daim ntawv tshwj xeeb ntawm lub xeev ntawm cov dej xau, thiab tom qab ntawd ua cov peev txheej sib txawv thiab kev kho mob raws li qhov sib txawv.
Thib peb, raws li qhov ceev ntawm cov pa xau, tshawb pom qhov sib txawv ntawm cov huab cua thiab tsim ib daim ntawv qhia peb-dimensional flow trend chart of the leak to make a trustable plan.
Thib plaub, nyob rau hauv qhov tsis zoo ntawm qhov cua, yog tias nws nyob hauv qhov chaw qhib qhov chaw uas cov roj hluav taws xob sib txawv, muaj qhov ua tau zoo ntawm cov roj combustible cov ntsiab lus los ze lossis ncav cuag lub xeev tawg, thiab cov no yog cov ntsiab lus tseem ceeb ntawm kev saib xyuas kev nyab xeeb.
Thib tsib, txheeb xyuas cov ntsiab lus xau tau ntawm cov cuab yeej tshawb nrhiav thiab kwv yees qhov hnyav ntawm cov pa tawm raws li cov kev taw qhia thiab qhov siab ntawm cov pa tawm ntawm cov roj combustible.
Gas sensors yog cov khoom tseem ceeb ntawm cov khoom siv hluav taws xob portable, thiab lawv muaj cov khoom tshwj xeeb. Nws zoo li tib neeg lub qhov ntswg, ceeb toom rau tib neeg kom tsis txhob muaj thaum ntsib cov pa phem. Yog li ntawd, feem ntau peb siv sensors. Gas sensors muaj qhov rhiab heev, thiab cov khoom siv roj yuav zoo li me me, tab sis lawv cov haujlwm muaj zog. Lub all-in-one gas detector tseem tuaj yeem ntes cov concentration ntawm ntau cov pa roj ib txhij. Vim lub peev xwm ntawm cov khoom siv roj los tso saib cov roj concentration, kev ntsuas tsis tu ncua thiab ntsuas cov ntsuas roj yog tsim nyog.
Vim tias yog tias lub ntsuas roj tsis tau ntsuas thiab ntsuas raws sijhawm, nws yuav cuam tshuam rau qhov ntsuas qhov kawg. Gas sensor yog ib qho rhiab heev uas muaj rhiab heev, uas tuaj yeem ntes cov roj hauv lub sijhawm. Txawm li cas los xij, nws tseem raug cuam tshuam rau sab nraud. Yog li ntawd, thaum siv lub ntsuas roj, nws yog ib qho tseem ceeb kom nyob deb ntawm kev cuam tshuam los xyuas kom meej nws qhov tseeb.
