BXPK正压型防爆控制柜(英).docx

BXPK正压型防爆限制柜BXPKPositivePressureExplosion-proofCabinet使用说明书OperationIntroduction南阳市一通防爆电气有限公司NanyangYitongExplosion-proofElectricalCo.,1.TD1码General正压盘防爆电气限制柜(箱)(以卜.简称电气柜)是依据GB3836.I£爆炸性气体环境用电气设备第1部分：通用要求、GB3836.2，爆炸性气体环境用电气设备第2部分：隔爆型“d”、GB3836.5爆炸性气体环境用电气设备第5部分：正压外克型“p”、GB3836.46爆炸性气体环境用电气设备第4部分：本质平安型MGB3836.15g爆炸性气体环境用电气设备第15部分：危急场所电气安装(煤矿除外)3的规定制成的正压型防爆电气电气柜，其防爆标记为：EXPXdibmnBT4。电气柜经国家授权的质量监督检验部门检验合格，取得了产品防爆合格证。本电气柜主要适用于石油、化工、冶金、制药等领域的1区爆炸性气体环境，其空气中存在有HB级T4组及以下的爆炸性气体混合物的场所，作为电气限制之用。PositivePressureExplosion-proofElectricControlCabinet(box)(hereaftercalledelectriccabinetforshortbelow)isbasedontherulesofGB3836.1"ExplosiveGasAtmosphereUseElectricEquipmentPart1:GeneralRequirements",GB3836.2“Expl。SiVeGasAtmosphereUseElectricEquipmentPart2:Explosion-proof"d"GB3836.5uExpIosiveGasAtmosphereUseElectricEquipmentPart5:PositivePressureEnclosureType"p"",GB3836.4ExplosiveGasAtmosphereUseElectricEquipmentPart4:IntrinsicallySafeType"andGB3836.15"ExplosiveGasAtmosphereUseElectricEquipmentPart15:ElectricInstallationinHazardousSite(exceptcolliery).Itsexplosion-proofsymbolisE×p×dibmllBT4.ElectricCabinettestedbyQualitySupervisionandInspectionDepartmentandauthorizedbytheStateisuptothestandardandobtaintheExplosion-proofCertificateofApproval.Theproductismainlyusein1areaexplosivegasatmosphereofpetroleum,chemicalengineering,metallurgy,pharmacyandotherfieldsinwhichthereareexplosivegasmixtureofIlB1.evelT4setandabove.Theproductisuseforelectriccontrol.2型号和基本分数TypeandBasicParameter.2.1电气柜型号ElectricalCabinetTypeBXPK-12.2基本参数BasicParameter设计序号DesignNo.电气柜ElectricalCabinet防爆型Explosion-proofType源：powersupplyAC380V.AC220V50HzIP54ExpxdibmIIBTl干净、平安空气cleanandsafeair0.40.6MPa70Pa400Pa150Pa70Pa防护等级：protectionclass防爆标记：explosion-proofsymbol气源种类：sourcegastype气源压力：sourcegaspressure运行正压：positivepressureforrunning低3报警：low-voltagewarning低JK断电：low-voltageoutage3、结构及原理StructureandPrinciple电气柜主体由正压电气电气框、正压气路系统、隔爆型电气箱等几部分组成。Principlepartsofelectriccabinetconsistofpositivepressureelectriccabinet,positivepressuregassupplysystem,andexplosion-proofelectriccabinet.正压电气电气柜外壳是由冷轧薄钢板经折边、拼焊而成的气密外壳.由了它能保持内部爱护气体的压力高于四周爆炸性气体环境的压力,从而能有效的阻挡外部的爆炸性气体混合物进入外壳内部。Positivepressureelectriccabinetenclosureismadeofcoldrolledsheetsteelwhichisfoldandweld;anditisahermeticpackage.Itcankeepthepressureofinternalprotectiongashigherthanthepressureofsurroundingexplosivegas,thusitcaneffectivelystopexternalexplosivegasmixturefromenteringinsideofenclosure.正压气路系统布置在正压电气电气柜的卜方。它可使现场的压缩空气或其它不燃性气体经过减压变成纯净的微压气体进入正压电气电气柜内，经过三特别钟吹扫，清除掉柜内爆炸性气体，并接若保持正压，使正压电气电气柜内部成为平安场所。Positivegassupplysystemisarrangedunderthepositivepressureelectriccabinet.Itcantransformonsitecondensedairorotherincombustiblegasintopuremini-pressuregasthroughreducingthepressureofonsitecondensedairorotherincombustiblegas;after30minuteofpurging,clearawayalltheexplosivegasinthecabinetandcontinuouslymaintainpositivepressure.Therefore,positivepressureelectriccabinetinsideisturnedintoasafetyplace.隔爆型电气箱负班给正压电气电气柜输送电源。当正压电气电气柜经过三特别钟吹扫，且柜体内压力大于70Pa时，向正压电气电气柜供电.Explosion-proofelectriccabinetistosupplypowerforpositivepressureelectriccabinet.Whenthepositivepressureelectricispurgingfor30minutesandthepressureinthecabinetisabove70Pa,theexplosion-proofelectriccabinetcansupplypowerforpositivepressureelectriccabinet.隔爆型电气箱外壁布置若若干个电缆引入装置：分别和电源电缆、输出电缆、和防爆主令限制器用电缆连接。Explosion-proofelectriccabinet'senclosurederatedseveralcableentrydeviceswhichseparatelyconnectfeedcable,outputcableandexplosion-proofmastercontrollerwithcable.在电气柜的（W面设置有若干个螺纹接头通孔，它们分别是：压缩空气或其它不燃性气体入口、正压腔气体出口。在电气柜隔板上设置有若干个螺纹接头通孔,它们分别是：电源电缆入门、输出电缆出口、备用电缆出口。这些螺纹接头是供用户在现场实施电缆钢管布线和气源管道施工时运用。Severalthreadjointthrough-holesaresetupinthesideofelectriccabinet.Theyarerespectivelytheentryofcompressedairorotherincombustiblegasandtheexitofpositivepressurechambergas.Severalthreadjointthrough-holesaresetupintheclapboardofelectriccabinet.Theyarerespectivelytheentryoffeedcableandtheexitofoutputcableandtheexitofsparecable.Thesethreadjointsisusedwhenuserarrangescablesteelpipewiringandconstructsairsourcepipe.在电气柜的正面明显区域有“ExpxdibmIBT4”红色标记。ExpxdibmIlBT4',redsymbolisintheobviousplaceoftherightsideofelectriccabinet.正压电气电气柜内的压力由精密减压阀、节流阀以及进气和排气口联动限制限制.使柜内的压力稳定在70Pa-400Pa之间。ThePressureinpositiveelectriccabinetiscontrolledbygangedcontrollerofprecisionreducingvalve,throttlingvalve,admissionportandexhaustport,whichstabilizethepressurerangefrom70Pato400Pa.4安装场所InstallationSite4.1电气柜在下列环境条件能正常工作：Theproductcanworknormallyinthefollowingsituations:a.海拔高度不超过2000m：Sealevelelevationisnotmorethan2000m.b.环境温度：-20C+40tC.Environmenttemperature:-20"C+40*Cc.空气相对湿度：最潮湿月份，月平均最l相对湿度不大于90机同时该月份月平均最低温度不高于+25*0；Relativeairhumidity:inthedampestmonth,thehighestmonthlyaveragerelativehumidityisnotmorethan90%.Meantime,inthismonth,thelowestmonthlyaveragetemperatureisnotabove+25'C.d.具有HB级T4组爆炸性气体(或液体、蒸汽)的1区环境中：Inthe1areaenvironmentofexplosivegas(orliquid,steam)of11B1.evelT4setandae.具有稍微腐蚀性气体存在的环境