可燃气体报警系统设计

:2006204210;:2006209226:(1947-),,,1982,,,24,,,(,230024):,,,,,,:;;;:TP277:B:100727324(2007)0120004204TheCombustibleGasAlarmSystemDesignTangHaiyang,ZhangJian,YangChengshan,LiuLei(DonghuaEngineeringScienceandTechnologyCo.Ltd.,Heifei,230024,China)Abstract:Accordingtocurrentdomesticstandardsandspecificationsforcombustiblegasalarmsystemdesignandengineeringdesignpracticeexperienceinrecentyears,basisofsystemestablishmentinprojectengineeringdesign,determinationofdetectionpoints,typeofdetectorandalarmcontroller,theirinstalla2tionanddesignofsystemdiagram,typeandimplementationofsystemsignalcableandpowercableetc.aresummarized.Alsosomeviewpointsaboutsomerelevantquestionofengineeringdesignaresubmittedforreference.Keywords:combustiblegasdetection;alarm;detector;codes;design,/(),,,,,,,,,1[110]1.11)SH306321999;2)(200161)SY650322000;3)SH/T3019220031.21)GB5001622006;2)(1999)GB5016021992;3)GB5005821992;4)HG/T2051222000;5)GB3836.11522000;6)GB5018322004;7)GB5009322002;8)HG/T2050522000;9)HG/T20507220002GB50016,:1)(GB500162200611.4.2)2)A,,2007,14AUTOMATIONINPETRO2CHEMICALINDUSTRY,((1999)GB50160219924.6.11)3),((1999)GB50160219925.1.4)4)150m2,(GB50183220046.1.6)5),,(GB50183220046.6.11)6)/(B,)22,/,(SH3063219993.0.1)3/,1),,,(GB501607.11.3)2):()7.5m,()15m:2m,1m(SH30633.0.8)3)/(SH30633.0.7)4)B(SH30636.4):,1(12m)1,15m;,1;15m;,4//(SH30633.05),,,//RS24854.11);2),,3)4),,5)DCS,PLC,420mA4.21)2)1,2,4,8,16,1616,3),(,,5min)4):0100%LEL();03TLV():10%:25%LEL,50%LEL;1TLV:25%:30s,20s(SH3063);60s,30s(SY6503)60s,30s(SH3063)10%,55.11),1GB3836.1422000,0.81.2,,511GB5005821992,0.75,0.97kg/m3,0.97kg/m3(=1.0)2),21(11293kg/m3)/(kgm-3)GB50058219920.750.751.2930.97SH3063219990.97SY6503220000.97HG/T20507220000.70.71.2930.9GB3836.14220000.81.03GB50058219920.750.97SH3063219990.97SY6503220000.97HG/T20507220000.70.9GB3836.14220001.21.552SH3063219990.52mSY6503220000.51.0mHG/T2050722000300500mm500800mmGB5009322002SH3063219990.30.6mSY6503220000.30.6mHG/T2050722000300500mmGB5009322002200300mm,:0.25m(,),,0.51.0m,5.21)2),1.31.5m,0.5m,1.2m3),4):8001900mm;150mm,100mm,100mm5)/UPSDCS,PLC,DCS,PLC66.1()6.2HG/T2050522000,,-:()13(),3(HG/T20505220003.1.1)(,)(,),(),13GT21301,()GISA21301(),GT21301A,,GIT,,GITA,(A,B,C)620073ABCDE()G/H()IL()M()RDCSST()77.17.1.1(SH/T3019220007)1),0.5mm22)2,231.01.5mm2,,,0.751.5mm23),:12.5mm2,21.5mm27.1.21),RVVP2),(SH/T3019220007.2.3)3),7.27.2.11)2),,3)4),,10%15%7.2.21),2)0.250.35(HG/T20512220000.300.50)3)50m,7.2.31),(GB5005821992)2)0.40,1.5(HG/T2051222000,SH/T301922003)3),4)230m,5),:1GB5001622006,2GB5016021992,3SH306321999,4SH/T301922003,5..:,20036GB5005821992,7GB3836.11522000,8GB5018322004,9HG/T2050522000,10HG/T2050722000,711