Kev Tiv Thaiv Kev Txhaum Txhaum Cai hauv Kev Lag Luam Automation: Ua Ntej Kev Nyab Xeeb Tshaj Tawm
Kev tiv thaiv tawg tsis yog tsuas yog qhov yuav tsum tau ua raws li - nws yog lub hauv paus ntsiab lus kev nyab xeeb. Raws li Suav automation manufacturers nthuav dav mus rau hauv kev lag luam uas muaj kev pheej hmoo siab xws li petrochemicals, mining, thiab lub zog, kev nkag siab txog kev tiv thaiv kev tawg yog qhov tseem ceeb rau kev sib tw thoob ntiaj teb thiab kev nyab xeeb ntawm kev ua haujlwm.
Kev Tshawb Fawb Tom Qab Industrial Explosions
Kev tawg yuav tsum muaj peb yam tseem ceeb:
- Cov khoom tawg- Gases (hydrogen, methane), kua (cawv, roj av), los yog hmoov av (qab zib, hlau, hmoov)
- Oxidizer- Feem ntau cov pa oxygen muaj nyob hauv huab cua
- Ignition Source- Cov nplaim taws, qhov chaw kub, qhov paug tawm zoo li qub, lossis tshuaj lom neeg
Lub hauv paus ntsiab lus ntawm kev tiv thaiv tawg yog tshem tawm ib qho ntawm peb yam.
Nkag siab txog Cov Khoom Siv Hluav Taws Xob Hluav Taws Xob: "Ex ed IIC T6"
Qhov no kos npe rau ntawm cov khoom tawg-pov thawj qhia tias:
- Ex: Ua raws li cov qauv kev tiv thaiv tawg
- e: Tsim kom muaj kev nyab xeeb ntxiv
- d: Flameproof enclosure
- IIC: Haum rau cov roj uas muaj kev pheej hmoo siab (hydrogen, acetylene)
- T6: Qhov kub siab tshaj plaws ≤85 ° C (muaj kev nyab xeeb rau cov khoom uas tsis tshua muaj hluav taws xob)
Thawj Txoj Kev Tiv Thaiv Kev Tiv Thaiv Kev tawg
Flameproof Enclosure (Ex d)
Tsim tshwj xeeb kom muaj kev tawg hauv sab hauv thiab tiv thaiv kev kub ntxhov ntawm cov huab cua phem sab nraud.
Intrinsic Safety (Ex kuv)
Txwv cov hluav taws xob hluav taws xob mus rau qib qis dua qhov xav tau los ua kom muaj hluav taws xob, txawm tias thaum muaj teeb meem txhaum cai. Yuav tsum muaj kev sib cais los tiv thaiv kom muaj kev nyab xeeb thoob plaws hauv lub cev.
Kev faib tawm thaj chaw muaj kev phom sij: Thaj chaw, pawg roj av & Kev ntsuas kub
Zone Classification (IEC Cov Qauv)
- Zone 0: Tsis tu ncua ntawm cov huab cua tawg
- Zone 1: Tej zaum yuav muaj nyob hauv lub sijhawm ua haujlwm
- Zone 2: Tsis tshua muaj lossis luv luv ntawm qhov chaw tawg
Gas Group Classification
- IIA: Tsawg pheej hmoo gases (propane)
- IIB: Cov pa phem nruab nrab (ethylene)
- IIC: Cov pa roj carbon monoxide (acetylene, hydrogen)
Kev ntsuas kub
| T-Class | Qhov kub siab tshaj plaws |
|---|---|
| T1 | ≤450 ° C |
| T6 | ≤85 ° C |
Keeb Kwm Teeb Meem: Cov Lus Qhia Hauv Kev Nyab Xeeb
- BP Texas City (2005): 15 tus neeg tuag los ntawm ignition ntawm hydrocarbon vapors
- Buncefield, UK (2005): Loj loj roj-cua tawg tshwm sim los ntawm tank overfill
- Imperial Qab Zib, USA (2008): Plua plav tawg ua rau 14 tus neeg tuag vim kev tu vaj tse tsis txaus
Cov xwm txheej no qhia txog qhov tseem ceeb ntawm cov ntawv pov thawj, thaj chaw tsim nyog tiv thaiv kev tawg.
Xaiv Cov Khoom Siv Zoo Automation: Cov Ntsiab Lus Tseem Ceeb
Thaum xaiv cov kev daws teeb meem automation rau ib puag ncig txaus ntshai, nco ntsoov xyuas:
- Cov cuab yeej puas phim koj thaj chaw tshwj xeeb thiab cov pa roj carbon monoxide?
- Puas yog chav ntsuas kub tsim nyog rau koj daim ntawv thov?
- Puas yog tag nrho cov khoom siv yog ib feem ntawm cov ntaub ntawv pov thawj tawg?
Tsis txhob cuam tshuamntawm cov qauv tiv thaiv tawg. Kev nyab xeeb yuav tsum yog tus tsav tsheb tom qab kev txiav txim siab tsim qauv-vim tias dab tsi muaj feem cuam tshuam txog kev nqis peev nyiaj txiag rau tib neeg lub neej.
Hu rau peb cov kws tshaj lij tiv thaiv kev tawg
Rau cov ntawv pov thawj kev daws teeb meem raws li koj qhov kev xav tau ntawm ib puag ncig txaus ntshai
Post lub sij hawm: May-06-2025