EX stands rau Low Explosion Level, uas yog hais txog cov ntsiab lus ntawm cov pa roj flammable muaj peev xwm ua rau tawg, hu ua qhov qis tawg txwv (Low Explosion Level), abbreviated li LEL. Tsawg tswb tus nqi ntawm lubEX Gas Detectorfeem ntau yog teem rau ntawm 25% LEL ntawm qhov kev txwv qis dua, thiab lub tswb nrov yog teem rau ntawm 50% LEL ntawm qhov txwv tsis pub tawg.
Yog tias EX tshwm rau ntawm lub tswb ntsuas lub vijtsam, nws qhia tias muaj cov pa hluav taws xob uas yog hluav taws kub thiab tawg. Raws li txoj cai, feem ntau yog %LEL (qis dua qhov txwv qhov feem pua) raws li qhov ntsuas ntsuas. Piv txwv li, methane, acetylene, biogas, roj roj, ethanol thiab cov zoo li tag nrho cov poob rau hauv qeb ntawm cov nplaim taws.
Yog tias muaj "Ex" ntawm daim ntawv lo ntawm lub casing lossis ntim, nws yeej qhia tau tias tawg - pov thawj. Txawm li cas los xij, yog tias nws tshwm sim ntawm qhov screen, nws qhia tau hais tias muaj cov pa taws kub hnyiab, uas yog, cov pa taws kub hnyiab thiab tawg. Ua ke, feem ntau muaj feem pua ntawm %LEL (Lower explosive limit) raws li qhov ntsuas ntsuas.
Qhov "EX" ntawm plaub-hauv- ib lub tshuab kuaj roj feem ntau yog hais txog qhov qis dua qhov txwv, uas yog siv los ntsuas cov pa hluav taws xob. Hauv qee qhov chaw tshwj xeeb xws li mines, underground, thiab plua plav ib puag ncig, cov pa taws thiab cov khoom siv hluav taws xob tsim los ntawm cov cuab yeej tuaj yeem ua rau tawg tawg. Plaub-hauv-ib lub ntsuas roj pom qhov feem pua ntawm cov pa taws kub hnyiab tau ib lub cubic meter hauv ib puag ncig ntsuas. Lub ruaj thiab portable combustible gas detectors tsim los ntawm peb lub tuam txhab ua si ib tug tseem ceeb luag hauj lwm nyob rau hauv industrial kev ruaj ntseg ntau lawm. Cov khoom nta yog raws li nram no.
1.Fixed combustiblegas detector (online hom)
1) Ntes (kev sojntsuam): Nruab rau ntawm - qhov chaw muaj kev phom sij, nws tau nruab nrog lub ntsuas hluav taws xob sab hauv los sau cov pa roj hauv lub sijhawm tiag tiag thiab tso tawm 4-20mA / RS485 cov cim.
2) Tswj vaj huam sib luag lub ntsiab chav tsev (tseem ceeb controller): Muab tso rau hauv chav ua haujlwm, nws hauv nruab nrab qhia cov ntsiab lus ntawm txhua lub ntsiab lus, tiag - cov ntaub ntawv sijhawm, thiab cov ntaub ntawv keeb kwm. Nws tuaj yeem txuas rau cov kiv cua tawm, solenoid li qub, suab thiab lub teeb ceeb toom, kiv cua, sprinklers, thiab txiav - tawm roj li qub.
Fais fab mov: AC220V lub zog tas li, 24-teev kev ua haujlwm tsis cuam tshuam.
2.Portable combustible gas detector (handheld soj ntsuam hom)
Ib leeg combustible EX detector;
Plaub -hauv-ib qho ntau- roj ntes (EX combustible gas + CO (carbon monoxide) + H₂S (hydrogen sulfide) + O₂ (oxygen)) feem ntau yog siv rau kev tshuaj xyuas txhua hnub.
Fais fab mov: Loj- lub peev xwm lithium roj teeb, them tag nrho, tuaj yeem siv tsis tu ncua rau 8 txog 24 teev, npaj siv tom qab them nyiaj.
3). Core nta
Lub cev compact yog yooj yim tuav thiab nqa tau yooj yim, tso cai rau nws nqa mus rau hauv qhov chaw kaw thiab nqaim kaum rau kev tshuaj xyuas.
Nws tau nruab nrog lub twj tso kua mis sab hauv (lub tshuab nqus tsev twj) / hom diffusion, uas tuaj yeem txuas mus rau hauv cov kav dej, qhov dej hauv av, thiab kaw qhov chaw rau kev kuaj thiab kuaj.
Nws yog txawm peem rau nrog ib tug built-in - suab, lub teeb thiab vibration alarm system, uas yuav ceeb toom rau cov neeg ua hauj lwm tam sim ntawd yog hais tias nyob rau hauv - tus qauv ntawm qhov chaw tshaj qhov txwv.
Nws los nrog ua -hauv cov ntaub ntawv khaws cia thiab tuaj yeem xa tawm cov ntaub ntawv tshuaj xyuas rau kev lees paub kev nyab xeeb.