Yuav xaiv lub ntsuas roj li cas raws li ib puag ncig
Paub meej tias hom thiab concentration ntau ntawm cov pa yuav tsum tau kuaj:
Txhua qhov chaw tsim khoom ntsib ntau hom roj. Thaum xaiv lub ntsuas roj, txhua qhov xwm txheej yuav tsum tau txiav txim siab. Yog hais tias methane thiab lwm yam tshuaj lom alkanes nyob rau hauv feem ntau, nws yog undoubtedly tsim nyog xaiv ib tug LEL ntes. Qhov no tsis yog vim hais tias lub hauv paus ntsiab lus ntawm LEL detector yog yooj yim thiab dav siv, tab sis nws kuj muaj cov yam ntxwv ntawm kev yooj yim txij nkawm thiab calibration. Yog tias muaj cov pa phem xws li cov pa roj carbon monoxide thiab hydrogen sulfide, nws yog ib qho tsim nyog yuav tsum xaiv lub tshuab ntsuas roj tshwj xeeb ua ntej kom muaj kev nyab xeeb ntawm cov neeg ua haujlwm. Yog hais tias muaj ntau cov organic toxic thiab teeb meem gases, xav txog qhov tsawg concentration uas yuav ua rau cov neeg ua hauj lwm lom, xws li aromatic hydrocarbons, halogenated hydrocarbons, ammonia (amines), ethers, cawv, rog, thiab lwm yam, koj yuav tsum xaiv cov roj teeb qhia nyob rau hauv. tshooj dhau los. Ionization detectors, tsis yog LEL detectors, vim qhov no tuaj yeem ua rau tus kheej raug mob lossis tuag. Yog tias cov roj hom npog cov roj av saum toj no, xaiv cov khoom siv hluav taws xob sib xyaw yuav ua tiav ob zaug qhov txiaj ntsig nrog ib nrab ntawm kev siv zog.
Txiav txim siab qhov kev siv:
Cov kev lag luam sib txawv yuav tsum muaj ntau hom roj ntes.
A), taag gas detector:
Qhov no yog ib tug detector uas yog dav siv nyob rau hauv industrial cov khoom thiab ntau lawm txheej txheem. Yiyang gas detectors tuaj yeem ntsia tau rau ntawm cov ntsiab lus tshwj xeeb txhawm rau txheeb xyuas cov pa tawm tshwj xeeb. Yiyang fixed detector feem ntau yog ob lub cev, lub taub hau nrhiav pom muaj li ntawm sensor thiab transmitter yog ntsia rau ntawm qhov chaw kuaj pom tag nrho, thiab cov cuab yeej thib ob uas muaj cov khoom siv hluav taws xob, cov khoom siv hluav taws xob thiab cov khoom siv ceeb toom tau teeb tsa hauv ib qho chaw raws li ib qho khoom siv. tag nrho, uas yog yooj yim rau kev saib xyuas. Nws txoj kev tshawb nrhiav yog tib yam li tau piav qhia hauv ntu dhau los, tab sis nws yog qhov tsim nyog rau cov yam ntxwv ntawm kev ruaj khov thiab ntev ntev uas yuav tsum tau ua los ntawm kev tshawb nrhiav ruaj khov ntawm cov txheej txheem thiab thev naus laus zis. Lawv kuj yuav tsum tau xaiv raws li hom thiab concentration ntawm cov roj nyob rau hauv lub site, thiab nyob rau tib lub sij hawm, yuav tsum tau them nyiaj mloog mus rau kev txhim kho lawv nyob rau hauv qhov chaw uas cov roj tshwj xeeb yog feem ntau yuav xau, xws li xaiv qhov zoo tshaj plaws. qhov siab rau kev teeb tsa sensor raws li qhov tshwj xeeb lub ntiajteb txawj nqus ntawm cov pa roj, thiab lwm yam.
B), Portable Gas Detector:
Yiyang portable ntsuas yog ib qho yooj yim rau kev khiav lag luam, me me, thiab tuaj yeem nqa mus rau ntau qhov chaw sib txawv. Lub electrochemical detector yog siv los ntawm alkaline roj teeb thiab tuaj yeem siv tsis tu ncua rau 1000 teev; tus tshiab LEL ntes, PID thiab cov cuab yeej sib xyaw siv cov roj teeb uas siv tau (qee qhov Twb tau txais lub cim xeeb tsis muaj mob hydrogen lossis carp ion roj teeb), yog li lawv tuaj yeem ua haujlwm tsis tu ncua rau ze li 12 teev, yog li cov cuab yeej zoo li no, nws yog ntau thiab ntau dua. dav siv nyob rau hauv ntau yam factories thiab kev noj qab haus huv departments.
Yog tias cov cuab yeej no siv los ua lub tswb nrov thaum muaj xwm txheej ceev hauv qhov chaw qhib, xws li lub rooj cob qhia qhib, lub tshuab hluav taws xob xaim hluav taws xob tuaj yeem siv tau, vim tias nws tuaj yeem ua tsis tu ncua, lub sijhawm tiag tiag, thiab ua kom pom tseeb ntawm cov pa phem thiab cov pa phem. ntawm qhov chaw. Qee cov cuab yeej tshiab no kuj tau nruab nrog cov khoom siv vibration tswb kom tsis txhob hnov qab lub tswb nrov hauv ib puag ncig uas tsis muaj suab nrov, thiab teeb tsa lub khoos phis tawj los sau cov ncov siab, STEL (15-feeb luv luv-ntev theem) thiab TWA ({{3 }} teev statistically weighted nruab nrab tus nqi). ) muab cov lus qhia tshwj xeeb rau cov neeg ua haujlwm noj qab haus huv thiab kev nyab xeeb.
