Dab tsi yog lub luag haujlwm tseem ceeb ntawm cov tshuaj lom thiab teeb meem roj ntes?
Cov pa phem thiab cov pa phem thiab cov khoom siv hluav taws xob tua hluav taws xob yog cov cuab yeej tshwj xeeb kev nyab xeeb thiab kev noj qab haus huv uas siv los ntsuas cov khoom siv hluav taws xob los yog cov pa phem uas tuaj yeem muaj nyob hauv huab cua ntawm cov chaw ua haujlwm lossis cov khoom siv phom sij, xws li tshuaj lom neeg, thiab yog cov cuab yeej uas ceeb toom thaum cov ntsiab lus siab tshaj qhov txwv.
Cov tshuaj lom thiab teeb meem gas detectors feem ntau yog siv rau hauv cov xwm txheej hauv qab no:
1. Kev soj ntsuam xyuas: Tom qab kev kho thiab hloov khoom siv, nws tseem ceeb dua kom pom cov pa phem lossis cov kua dej seem, tshwj xeeb tshaj yog ua ntej ua haujlwm kub.
2. Kev txheeb xyuas qhov dej xau: Kev kuaj pom thiab ceeb toom ntawm cov pa phem lossis cov kua dej hauv cov khoom siv hauv cov kav dej ntawm qhov chaw, thiab kuaj pom cov dej xau thaum lub sijhawm ua haujlwm hauv cov kav dej.
3. Thaum ua kev soj ntsuam xyuas kev nyab xeeb thiab huv si, yuav tsum kuaj xyuas cov pa phem lossis kua dej.
4. Kev kuaj pom thaum muaj xwm txheej ceev: Yog tias muaj xwm txheej txawv txav lossis raug xwm txheej ntawm qhov chaw tsim khoom, nws yog ib qho tsim nyog yuav tsum kuaj xyuas cov pa phem lossis cov kua dej kom nyab xeeb thiab huv.
5. Kev kuaj xyuas nkag: Thaum cov neeg ua haujlwm nkag mus rau hauv chav ua haujlwm cais cov khoom phom sij, nkag mus rau hauv qhov dej ntws, cable trench, lossis cov khoom siv hauv thaj chaw muaj kev phom sij rau kev ua haujlwm, lawv yuav tsum kuaj xyuas cov pa phem lossis kua dej.
Yuav xaiv lub ntsuas roj li cas thiab seb yuav xav txog dab tsi
1. Paub meej tias hom thiab concentration ntau ntawm cov roj yuav raug kuaj
Yog tias methane thiab lwm yam tshuaj lom alkanes tsawg dua, yuav xaiv lub ntsuas LEL. Vim tias LEL detector muaj lub hauv paus ntsiab lus yooj yim thiab daim ntawv thov dav, nws kuj muaj cov yam ntxwv ntawm kev saib xyuas yooj yim thiab calibration. Yog tias muaj cov pa phem xws li cov pa roj carbon monoxide thiab hydrogen sulfide, qhov tseem ceeb yuav tsum tau muab rau kev xaiv cov khoom siv hluav taws xob uas cuam tshuam rau cov roj kom kuaj tau. Yog tias nws yog cov pa roj carbon monoxide thiab cov pa phem, xws li cov pa roj carbon monoxide, halogenated hydrocarbons, ammonia (amine), ethers, alcohols, lipids, thiab lwm yam, tuaj yeem xaiv lub photoionization detector. Yog tias cov roj hom npog cov roj av saum toj no, nws raug nquahu kom xaiv cov khoom siv roj sib xyaw.
2. Txheeb xyuas cov xwm txheej siv ntawm cov khoom siv roj
Yog tias nws nyob hauv qhov chaw qhib, xws li lub rooj cob qhia qhib, lub tshuab hluav taws xob portable uas tuaj yeem hnav nrog koj tuaj yeem siv tau, uas tuaj yeem ua haujlwm tsis tu ncua, lub sijhawm tiag tiag, thiab ua kom pom tseeb qhov concentration ntawm cov pa phem thiab cov pa phem ntawm qhov chaw. Feem ntau nruab nrog kev vibration lossis lub teeb ceeb toom cov khoom siv kom tsis txhob hnov lub tswb nrov hauv qhov chaw nrov nrov, thiab cov chips hauv computer raug teeb tsa los sau cov txiaj ntsig ncov thiab lwm yam ntaub ntawv, muab kev qhia tshwj xeeb rau cov neeg ua haujlwm kev noj qab haus huv thiab kev nyab xeeb.
Yog tias nkag mus rau hauv qhov chaw kaw, xws li cov tshuaj tiv thaiv tank, lub tank cia lossis cov thawv ntim, cov kav dej lossis lwm cov kav dej hauv av, cov chaw hauv av, cov chaw ua liaj ua teb, cov tsheb ciav hlau, cov tsheb thauj mus los, cov khoom thauj khoom thauj, cov tunnels, thiab lwm yam, cov neeg ua haujlwm yuav tsum tau kuaj ua ntej nkag mus, thiab kuaj yuav tsum tau ua sab nraum qhov chaw kaw. Nyob rau ntawm lub sijhawm no, nws yog qhov zoo tshaj plaws los xaiv lub ntsuas roj ntau nrog lub twj tso kua mis ua qauv. Nws tuaj yeem nruab nrog ntau lub tshuab ntsuas roj uas xav tau ntawm ib qho cuab yeej, thiab nws muaj cov yam ntxwv ntawm cov ntim me me, lub teeb yuag, cov lus teb ceev ceev, thiab cov khoom siv ib txhij ntawm ntau cov roj ntau ntau.
