Shenhai Explosion-Proof
Tus tawg-pov thawj marking hauv tawg-pov thawj teeb fixtures yog ib daim ntawv lo uas piav cov explosion-proof qib, txias, Yam, thiab muaj feem xyuam rau lub teeb fixture.
Piav txog Explosion-proof Marking:
Ua ib GB 3836 qauv kawm, Tus tawg-pov thawj marking ntawm teeb fixtures muaj xws li:
Tawg-profo + Khoom Siv Rau Cov Khoom Siv + (roj pab pawg neeg) + pab pawg neeg kub.
1. Tawg-profo:
Rooj 1 Hom Explosion-Proof
| Tawg pov thawj | Tawg pov thawj kos npe rau daim ntawv | Tawg pov thawj | Tawg pov thawj kos npe rau daim ntawv |
|---|---|---|---|
| Flameproof hom | EX d d | Xuab zeb sau hom | EX q |
| Muaj kev ruaj ntseg ntau yam | EX E | encapsulation | EX |
| Barotropic hom | EX p | N-hom N-hom | EX n |
| Intrinsically muaj kev ruaj ntseg zoo | EX ia EX I | hom tshwj xeeb | EX |
| Roj ntxeem tau hom ntxeem tau | EX o | Plua plav tawg-proof yam | EX A EX B |
2. Khoom Siv Rau Cov Khoom Siv:
Hluav Taws Xob Fais Fab Hluav Taws Xob explosive Cov cua cua faib ua:
Hoob Kawm Kuv: Siv nyob rau hauv thee mines;
Hoob Kawm II: Siv nyob rau hauv explosive roj cua uas tsis yog thee mines.
Hoob kawm II tawg-profo “d” thiab intrinsic kev ruaj ntseg “Kuv” Cov khoom hluav taws xob muaj ntxiv faib ua IIA, IIB, thiab IIC hoob kawm.
Hluav Taws Xob Fais Fab Hluav Taws Xob combustible plua plav faib ua faib ua:
Yam khoom siv plua plav; Yam khoom siv B-tight khoom;
Hom khoom muaj plua plav; Hom khoom plua plav uas tsis muaj plua plav.
3. Piav txog Explosion-proof Marking:
Muaj peev xwm ntawm ib tug explosive roj mixture rau propagate tawg indicates nws theem ntawm tawg hazard. Qhov ntau dua muaj peev xwm propagate tawg, qhov phom sij. Qhov no muaj peev xwm muaj peev xwm uas muaj tuaj los ntawm qhov xyaum ua tej yam zoo kis. txuas ntxiv, Qhov yooj yim uas explosive gases, vapors, los yog mists yuav ua tau zes kuj qhia tau hais tias qib uas tawg hazard, Uas muaj tuaj ntawm qhov tsawg kawg igniting tam sim no piv. Hoob kawm II tawg-pov thawj los yog intrinsic kev ruaj ntseg hluav taws xob yog ntxiv classified rau IIA, IIB, thiab IIC raws li lawv cov kev xyaum ua tej yam zoo los yog yam tsawg kawg nkaus igniting piv txwv.
Rooj 2 Kev sib raug zoo ntawm cov pab pawg neeg explosive roj Mixtures thiab qhov ntau experimental zoo kis los yog yam tsawg kawg igniting tam sim no piv
| roj | Qhov kev kuaj ntawd kuaj pom kev ruaj ntseg kis MESG (m m) | Yam tsawg kawg yog ignition tam sim no piv MICR |
|---|---|---|
| IIA | MESG≥0.9 | MICR>0.8 |
| IIB | 0.9>MESG≥0.5 | 0.8≥MICR≥0.45 |
| IIC | 0.5≥MESG | 0.45>MICR |
4. pab pawg neeg kub:
Lub ignition txias Ntawm ib tug explosive roj mixture yog qhov kub ntawm uas nws yuav tau ignited.
Hluav taws xob khoom yog txwv kom muab zais rau hauv T1 rau T6 pawg raws li lawv qhov chaw kub tshaj plaws, Xyuas kom meej tias qhov kub tshaj plaws ntawm cov khoom tsis tshaj tus nqi permissible tus nqi ntawm cov corresponding kub. Txoj kev sib raug zoo ntawm pawg kub, txias, thiab qhov kub ntawm qhov kub qhov khuv gases los yog vapors muaj nyob rau hauv Table 3.
Rooj 3 Kev sib raug zoo ntawm pawg kub, Khoom Siv Rau Cov Khoom Siv, thiab Ignition kub ntawm Flammable Gases los yog Vapors
| Kub IEC/EN/GB 3836 | Qhov kub tshaj plaws ntawm cov khoom T [°C] | Lgnition kub ntawm combustible tej yam khoom [°C] |
|---|---|---|
| T1 | 450 | T>450 |
| T2 | 300 | 450≥T>300 |
| T3 | 200 | 300≥T>200 |
| T4 | 135 | 200≥T>135 |
| T5 | 100 | 135≥T>100 |
| T6 | 85 | 100≥T>8 |
5. Yuav tsum tau teem Markings:
(1) Markings yuav tsum mas muab tso rau hauv lub cev ntawm cov khoom hluav taws xob;
(2) Lub markings yuav tsum nyob tseeb thiab durable nyob rau hauv tej tshuaj corrosion. Markings xws li Ex, tawg-profo, qeb, Thiab kub pab pawg neeg yuav tau embossed los yog debossed rau ntawm qhov pom ntawm lub casing. Cov khoom rau lub phaj marking yuav tsum tau tshuaj resistant, xws li bronze, brass, hlau los yog hlau.