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阻火器防爆设计及防爆检验方法探讨,,,(,473008)[];();;;[](),MESG()MESG[]TE83[]A[]1004-9118(2011)03-0040-05ApproachonDesignandTestMethodRelatedtoExplosionProtectionforAFlameArresterZHANGPeng,ZHANGSong,MAQiu-ju,DONGKai(NanyangExplosionProtectedElectricalApparatusResearchInsitute,HenanNanyang473008)Keywords:flamearrester;fireretardant(againstexplosion)principle;explosiveenvironments;explosionprotectiondesign;testingmethodAbstract:Basedontheanalysesfortheprincipleofaflamearrester,itgivesthefundamentalthoughtindesignofaflamearrester,thatis,theflamepassagelengthandgapofthearrestercanbedeterminedbythemaxexerimentalsafetygapofthegasespresentinthehazardousenvironmentwhereitisinserviceFurthermore,italsoanalysisthetestingprincipleontheflamearresterbasedontheMESGtheory,makescomparsonbetweenthetestproceduresfortheflamearrestersinrelevantstandardsbothhereandabroad0,,:;;;;;,111,(1),,,(MRoper),460,(402011,3[]2011-07-15[],,1982,2004,)26%,,(2),,(),,,,,:,,,,,,12:(1):(2):(3):,(4)::(1)(2)(3)(4)(5)(6)(7)2[4][5],[2](:[5]GB1336!77,GB38362!83,[2]),,,,,,,,GB383611:(20∀105MPa),,,25mm(MESG),MESG,MESG,,MESG,0%g0100%g100,g0,(g0)minMESG,,g0,(25mm)g0,(MESG),GB383611IEC79-1A,,,MESG(IEC)MESG41,#C412011,3,5,21MESGMESG/mm∃(CH4)MESG=114#AMESG%09#B09MESG%05#CMESG&052#CMESG/mmH2029C2H2037CS2034(C2H5)2SiCl2045C2H5ONO2!,,,(MESG),:(1),,25mm,037mm(2)#B,25mm,05mm(3)#C,25mm,029mm,,,,,,,,,,,[9],MESG(),,;,10mm,,MESG;30mm,MESG,,,MESG,,,,3,AQ1074!2009;,GB13347GB5908;,GB208001,GB20800EN1834,:(1):,,(2):,,,,313422011,33AQ1074DN300():25MPa;DN300:20MPa5minGB133471510min06MPa16MPa25MPaGB590809MPa5minGB208001:,15nP,15MPa;,15P,10MPa;1min,EN1834;n,P:15!EN1834;GB38362;EN1834:GB208001:GB208001,:035MPaEN50018:1994,AQ1074GB13347GB5908(),EN1834GB208001,GB208001EN1834,GB1334706MPaGB5908,GB20800EN1834(,),GB208001EN1834EN1834GB20800132AQ1074GB13347GB5908EN1834GB208001,,,;,()MESG(1)GB13347GB59081:,(A),(E),A!;B!;C!;D!;E!;F!;G!;H!;I!;J!;K!;L!1EN1834GB208001,(2)4,SH3413!1999GB13347,#A,GB208001,1GB208001EN1834,,EN1834,GB383625432011,34MESGMESGAQ1074CH41)MESG=114mm131114114GB5908(43∋02)%C3H8MESG=092mm2)130983)09092GB13347(43∋02)%C3H8MESG=092mm2)130983)(72∋02)%C3H8!131MESGGB208001#A(55∋1)%H2MESG=065mm1013809065#B(37∋1)%H2MESG=035mm1014305035#C:(27∋1)%H2MESG=029mm2)5):(75∋1)%C2H2MESG=037mm2)1014)029029;037037,#A(55∋1)%H2,(42∋01)%C3H8(MESG=092mm)EN1834#A(42∋01)%C3H8MESG=092mm10098#B(45∋05)%H2MESG=049mm1010205049#C:(27∋1)%H2MESG=029mm:(75∋1)%C2H2MESG=037mm2)101#A#B#C(42∋01)%C3H8:1)AQ1074:96%,(44%~17%)82%2)GB383611,C3H842%,MESG3)#AGB5908#A,,#A4)#CGB208001GB38362,15)#CMESGH2,C2H2,,C2H25GB208001#A#B#C#A#B#CGB38362,,,GB208001,4,,442011,3