3.4.1喷头的布置ArrangementofNozzle17课件讲解.pptx

3.4.1喷头的布置ArrangementofNozzles

一、喷头的布置ArrangementofNozzles1.喷头的布置原则Arrangementprincipleofnozzles1234喷头的布置应不超出喷头最大和最小间距。Thenozzlesshallbesetnottoexceedthemaximumandminimumspacingbetweennozzles.喷头的布置应均匀洒水和满足设计喷水强度的要求。Thenozzlesshallbesettosprinklewaterevenlyandmeettherequirementsofthedesignedsprayingintensity.喷头布置应设在顶板或吊顶下易于接触到火灾热气流并有利于均匀洒水的位置，应防止障碍物屏障热气流和破坏洒水分布。Thenozzlesshallbesetunderthetopplateorceilingwhereitiseasytocontactthehotairflowofthefireandconducivetosprayingwaterevenly,andobstaclesshallbepreventedfromshieldingthehotairflowanddamagingthedistributionofsprayedwater.满足喷头的水力特性和布水特性的要求，喷头的布置应不超出其最大保护面积。Itslayoutshallmeettherequirementsofhydrauliccharacteristicsandwaterdistributioncharacteristics,andthenozzlesshallbearrangedwithoutexceedingtheirmaximumprotectionarea.

一、喷头的布置ArrangementofNozzles2.喷头的布置形式ArrangementofNozzles喷头的布置应根据天花板、吊顶的装修要求布置成正方形、矩形和菱形三种形式。Thenozzlesshallbesetintheformsofsquare,rectangle,andrhombusaccordingtothedecorationrequirementsoftheceilingandsuspendedceiling.正方形Square长方形Rectangle菱形Rhombus

一、喷头的布置ArrangementofNozzles3.喷头的布置ArrangementofNozzles（1）直立型、下垂型标准覆盖面积洒水喷头的布置，包括同一根配水支管上喷头的间距及相邻配水支管的间距，应根据设置场所的火灾危险等级、洒水喷头类型和工作压力确定，并不应大于下表的规定，且不应小于1.8m。Thearrangementofuprightandpendentnozzleswithastandardcoveragearea,includingthespacingbetweennozzlesonthesamebranchlineandthespacingbetweenadjacentbranchlines,shallbedeterminedaccordingtothefirehazardlevel,sprinklernozzletype,andworkingpressureoftheinstallationplace,andshallnotbegreaterthantheprovisionsofthetablebelowandnotbelessthan1.8meters.火灾危险等级Firehazardlevel正方形布置的边长（m）Sidelengthincaseofasquare(m)矩形或平行四边形布置的长边边长（m）Longsidelength(m)ofarectangularorparallelogramarrangement一只喷头的最大保护面积（m2）Maximumprotectionareaofanozzle(m2)喷头与端墙的距离（m）Distancebetweenthenozzleandthe