15高压细水雾灭火系统设计原则

硬指标是以统计数据为基础，把统计数据作为主要评价信息，通过硬指标信息的直接提取或硬指标计算公式，最终获得数量结果的业绩考评指标orequalto200mm,notmorethan4mm.7.3.9simmeringbendingproductionofsquaresteeltubeextension,tousethewholetubebending.Interfaceifnecessary,theweldingpositionshouldbelocatedinthemiddleoftheverticalarm.7.3.10installexpansionjointsshouldbedone.Ifdesignisnotrequired,pipecompensatorlengthenshouldconformtotherequirementsinthefollowingtable:squarescalelengthδxisequalto1/2.Prestretchtolerance:casing+5mm,+10mm.7.3.11pipeform,location,spacingshallmeetthedesignandspecifications.7.3.12pipingonbackorreturnpipeathigherlevelsoftheuppertoautomaticvalvetoinstalladrainvalvebelowthehorizontalparts.7.3.13supportsandhangersofchecksandthenumber1)hangerinstalledmustbecheckedbeforeinstallationofsupportsandhangerspartmodels,specificationsofspringssettingvalues,whetherthematerialsmeettherequirementsofdrawingsanddocuments;2)supportsandhangersofmaterial,sizeandaccuracyshallconformtotheprovisionsofthedesigndrawings,materialtechnicalrequirementsshouldbeconsistentwithnationalstandards,industrystandardsandtechnicalrequirementsrelatedtothealloyspectrumreviewshouldbecarriedout;3)pipesupportsandhangerspartplantproductqualitycertificateforeachvariablespringsupports,constantsupporthangers,dampers,damperfunction,thereshouldbefactorycalibratedtestandperformancetestcopiesoftherecord.Ifnecessary,reviewshouldbe1.细水雾系统规范与依据？（a）美国《细水雾灭火系统设计标准》NFPA750-2006（b）浙江《细水雾灭火系统设计、施工及验收规范》DB33/1010-2002（c）北京市地方性标准《细水雾灭火系统设计、施工、验收规范》DBJ01-74-2003（d）江苏省地方标准《细水雾灭火系统设计、施工及验收规程》DGJ32/J09－2005（e）湖北省地方标准《细水雾灭火系统设计、施工及验收规范》DB42/282-2004（f）辽宁省地方标准《细水雾灭火系统设计、施工及验收规范》DB21/1235-2003（g）山西省工程建设地方标准《细水雾灭火系统设计、施工及验收规范》PDBJ04—247—2006（h）河南省工程建设地方标准《细水雾灭火系统设计、施工及验收规范》DB41T074—2006（i）广东省工程建设地方标准《细水雾灭火系统设计、施工及验收规范》DBJ/T15-41-2005（j）《火力发电厂与变电所防火设计规范》（k）《钢铁冶金企业防火设计规范》（l）上海《油浸式电力变压器火灾报警与灭火系统技术规程》（m）国家《细水雾灭火系统技术规范》（征求意见稿）（n）《档案馆高压细水雾灭火系统技术规范》DA/T452009（o）UL2167--消防设备用水雾喷嘴的安全标准（p）IMO/MSC668（q）FM5560--WaterMistSystems（r）VDS2498（s）IMO933（t）IMO800（u）EN14972硬指标是以统计数据为基础，把统计数据作为主要评价信息，通过硬指标信息的直接提取或硬指标计算公式，最终获得数量结果的业绩考评指标orequalto200mm,notmorethan4mm.7.3.9simmeringbendingproductionofsquaresteeltubeextension,tousethewholetubebending.Interfaceifnecessary,theweldingpositionshouldbelocatedinthemiddleoftheverticalarm.7.3.10installexpansionjointsshouldbedone.Ifdesignisnotrequired,pipecompensatorlengthenshouldconformtotherequirementsinthefollowingtable:squarescalelengthδxisequalto1/2.Prestretchtolerance:casing+5mm,+10mm.7.3.11pipeform,location,spacingshallmeetthedesignandspecifications.7.3.12pipingonbackorreturnpipeathigherlevelsoftheuppertoautomaticvalvetoinstalladrainvalvebelowthehorizontalparts.7.3.13supportsandhangersofchecksandthenumber1)hangerinstalledmustbecheckedbeforeinstallationofsupportsandhangerspartmodels,specificationsofspringssettingvalues,whetherthematerialsmeettherequirementsofdrawingsanddocuments;2)supportsandhangersofmaterial,sizeandaccuracyshallconformtotheprovisionsofthedesigndrawings,materialtechnicalrequirementsshouldbeconsistentwithnationalstandards,industrystandardsandtechnicalrequirementsrelatedtothealloyspectrumreviewshouldbecarriedout;3)pipesupportsandhangerspartplantproductqualitycertificateforeachvariablespringsupports,constantsupporthangers,dampers,damperfunction,thereshouldbefactorycalibratedtestandperformancetestcopiesoftherecord.Ifnecessary,reviewshouldbe高压细水雾系统设计原则1、按同一时间内发生一处火灾考虑，组合分配式。2、系统设计流量为最大一个保护区的计算流量。3、原则上一套泵组保护同一单体建筑的所有保护区。4、累积喷放时间：规范规定的最长时间30min考虑。5、闭式系统：用于火灾水平蔓延速度慢，能及时控火、灭火的场所，保护目标为保护区的人员。6、开式系统：用于火灾危险性较大的场所，防护目标为保护区域内的设备和人员，如机房等。7、预作用系统：闭式喷头，干式支管，避免误喷与减少灭火时产生的湿度影响。硬指标是以统计数据为基础，把统计数据作为主要评价信息，通过硬指标信息的直接提取或硬指标计算公式，最终获得数量结果的业绩考评指标orequalto200mm,notmorethan4mm.7.3.9simmeringbendingproductionofsquaresteeltubeextension,tousethewholetubebending.Interfaceifnecessary,theweldingpositionshouldbelocatedinthemiddleoftheverticalarm.7.3.10installexpansionjointsshouldbedone.Ifdesignisnotrequired,pipecompensatorlengthenshouldconformtotherequirementsinthefollowingtable:squarescalelengthδxisequalto1/2.Prestretchtolerance:casing+5mm,+10mm.7.3.11pipeform,location,spacingshallmeetthedesignandspecifications.7.3.12pipingonbackorreturnpipeathigherlevelsoftheuppertoautomaticvalvetoinstalladrainvalvebelowthehorizontalparts.7.3.13supportsandhangersofchecksandthenumber1)hangerinstalledmustbecheckedbeforeinstallationofsupportsandhangerspartmodels,specificationsofspringssettingvalues,whetherthematerialsmeettherequirementsofdrawingsanddocuments;2)supportsandhangersofmaterial,sizeandaccuracyshallconformtotheprovisionsofthedesigndrawings,materialtechnicalrequirementsshouldbeconsistentwithnationalstandards,industrystandardsandtechnicalrequirementsrelatedtothealloyspectrumreviewshouldbecarriedout;3)pipesupportsandhangerspartplantproductqualitycertificateforeachvariablespringsupports,constantsupporthangers,dampers,damperfunction,thereshouldbefactorycalibratedtestandperformancetestcopiesoftherecord.Ifnecessary,reviewshouldbe高压细水雾灭火系统适用的场合：行业保护范围地铁电气设备房、轨行区、商铺、公共区域、调度大厅、电缆夹层、两站区间超规范保护、档案库房等交通隧道灭火、调度中心、电气设备房等电力设备机房、油箱间、电缆隧道、调度大厅、档案库房、油