Shenhai Explosion-Proof
Cov cuab yeej tiv thaiv qib (EPL) ntsuam xyuas qhov tawg-pov thawj kev ntseeg tau ntawm ib hom khoom siv tshwj xeeb raws li qhov ua txhaum cai thiab kev tiv thaiv kev tiv thaiv, ua tus taw qhia kev nyab xeeb tseem ceeb rau cov khoom siv hluav taws xob tawg.
| Hom mob | Gas Classification | Cov pa hluav taws xob | Yam tsawg kawg nkaus Ignition Spark Zog |
|---|---|---|---|
| Sub Kuv | Kuv | Methane | 0.280mJ |
| Factories sab nraum lub Mine | IIA | Propane | 0.180mJ |
| IIB | Ethylene | 0.060mJ | |
| IIC | Hydrogen | 0.019mJ |
Cov qib yog categorized li a, b, thiab c:
1. Qib ib ua kom ntseeg tau tias muaj kev ruaj ntseg tawg-pov thawj kev ua tau zoo nyob rau hauv kev ua haujlwm ib txwm muaj thiab thaum muaj kev cia siab thiab tsis tshua muaj qhov txhaum.
2. Qib b lav kev tuav pov hwm kev nyab xeeb ntawm kev ua haujlwm tawg thaum lub sijhawm ua haujlwm ib txwm muaj thiab pom qhov ua yuam kev.
3. Qib c paub meej txog kev saib xyuas kev nyab xeeb ntawm kev tawg-pov thawj hauv ob qho tib si kev ua haujlwm thiab cov xwm txheej txawv txav.
Feem ntau, ib qho khoom tawg-pov thawj yuav tsum tau ua raws li Qib 3 kev tiv thaiv. Hauv qee kis, txawm li cas los xij, Qib 2 los yog 1 tej zaum yuav tso cai rau tej yam tawg-pov thawj.
Cov txheej txheem kos npe suav nrog:
1. Raws li cov cim tawg-pov thawj hom:
Kev sib xyaw ntawm cov hom tawg-pov thawj thiab cov cuab yeej tiv thaiv qib cim qhia txog qib kev tiv thaiv. Piv txwv li, cov cuab yeej kev nyab xeeb yooj yim raug cim raws li ia, ib, lub ic.
2. Raws li cov khoom siv hom cim:
Kev sib koom ua ke ntawm cov cuab yeej siv thiab cov cim qib kev tiv thaiv qhia txog qib kev tiv thaiv. Piv txwv li, Chav kawm I (mining) cov cuab yeej raug cim ua Ma lossis Mb (M sawv cev kuv); Chav Kawm III (Hoobkas, gas) cov cuab yeej raug cim raws li Ga, Gb, lub Ge (G rau gas).
Nws yog ib qho tseem ceeb kom nkag siab tias cov cuab yeej tiv thaiv qib thiab qib tawg-pov thawj yog cov ntsiab lus sib txawv feem ntau tsis meej pem hauv daim ntawv thov. Qib tiv thaiv qhia “kev ntseeg tau,” thaum qhov tawg-pov thawj theem qhia “combustible gas cov khoom thiab cov khoom siv structural nta.” Piv txwv li, nyob rau hauv ib qho chaw muaj kev lag luam nrog qhov pheej hmoo ntawm hydrogen tawg (Zone 0), yuav tsum muaj cov cuab yeej siv kev nyab xeeb yuav tsum yog Level ia, Explosion-Proof Level IIC. Nyob rau hauv tsawg zaus hydrogen kev pheej hmoo (Zone 1), Level ib, IIC cov cuab yeej siv kev nyab xeeb sab hauv yuav ua tau raws li qhov xav tau, txawm Level ia, Cov cuab yeej IIC kuj tuaj yeem tsim nyog.