Cov teeb meem uas yuav 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 tus kheej muaj kev nyab xeeb 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 pa hluav taws xob rau hauv 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 roj av detectors, uas yog feem ntau xav txog nyob rau hauv: 1. nrhiav kom tau cov nplaim taws yog ib qho tseem ceeb tshaj qhov nrhiav kom tau cov pa phem; 2. Kev kuaj xyuas cov pa roj uas yuav ua rau muaj kev phom sij txaus ntshai yog qhov tseem ceeb tshaj qhov kev tshawb nrhiav cov pa roj uas yuav ua rau muaj kab mob lom.
Raws li cov lus qhia uas tau kawm los ntawm ntau qhov kev sib tsoo tawg tshwm sim los ntawm cov pa hluav taws xob tawg, 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 combustible gas detectors (LELs) tsis yog qhov kev xaiv zoo rau kev kuaj xyuas tag nrho cov roj hluav taws xob. Nws yog tsim tshwj xeeb rau kev soj ntsuam 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 nyob rau hauv cov kev tshwm sim ntawm ib tug 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 cov xwm txheej 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 dej xau raws li cov kev taw qhia thiab lub siab ntawm cov pa taws combustible.
