船用空调通风安装工艺规范

……千锤百炼，军工品质——永昇中央空调……PAGE1船用空调通风系统安装施工工艺规范船用空调通风系统安装施工工艺规范INSTALLATIONANDCONSTRUCTIONTECHNICALRULESFORMARINEAIRCONDITIONER&VENTILATIONSYSTEM一、概述：General空调及通风系统中需要采用预隔热螺旋风管、单层螺旋风管、镀锌薄板矩形风管、板材焊接风管（钢质风管）及通风附件等，根据设计要求，落实风管及附件规格型号、数量，采用螺旋风管、镀锌方风管或板材焊接风管，严格按风管制作工艺和规范要求执行生产安装。Theairconditionerandventilationsystemshalladoptthepre-insulatedspiralairduct,singlelayerspiralairduct,galvanizedsheetrectangleairduct,plateweldedairduct(steelairduct)andventilationaccessoriesetc.Accordingtothedesignrequirementstodeterminethetypeandquantityofairductandaccessories,andselectthesuitableairduct,i.e.spiralairduct,galvanizedsheetsquareairductorweldedairduct.Accordingtotherelativeconstructuretechnicalrulestomanufactureandinstall.……千锤百炼，军工品质——永昇中央空调……PAGE2船用空调通风系统安装施工工艺规范二、施工程序：空调工程A/CPROJECT风管制作、吊装AIRDUCTFABRICATEANDLIFT空调设备安装、空调管道和工艺管道安装INSTALLA/CUNIT,A/CPIPEANDPROCESSLINE风管、空调管道和工艺管道清洗CLEANAIRDUCT,A/CPIPEANDPROCESSLINE风管漏光检查LIGHTLEAKTESTOFDUCT空调管道和工艺管道试压PRESSURETESTOFA/CPIPEANDPROCESSLINE单机调试COMMISSIONINGOFSINGLEUNIT风管保温、工艺管道保温INSULATIONOFAIRDUCTANDPROCESSLINE风管空吹EMPTYBLOWAIRDUCT工程验收PROJECTACCEPTION空调系统测试、产品测试TESTA/CSYSTEM,TESTPRODUCTS……千锤百炼，军工品质——永昇中央空调……PAGE3船用空调通风系统安装施工工艺规范三、风管制作Manufacturetheairduct(1)镀锌矩形风管Galvanizedrectangleairduct镀锌矩形风管连接可采用翻边、铆接和焊接，风管与角钢法兰连接时，风管壁厚小于1.5mm，一般采用翻边铆接，翻在法兰的外侧，用角尺靠在风管的纵向折角边上，使风管中心线与法兰平面保持垂直，翻边的尺寸应为6-9mm。法兰用料规格较小的可取上限值，规格较大的取下限值，防止翻边卡住螺孔，影响组装，咬口重叠处，翻边时应将突出部分铲平，同时四角不应出现豁口，以免漏风，铆钉距离不可大于120mm。Connectionofrectangleairducttheflanging,rivetjointingandweldingcanbeadopted,theconnecttheairductandanglesteelflange,whenthethicknessofairductislessthan1.5mm,generally,flangingandrivetjointingcanbeadopted,atfirsttheairductshallbeturnedovertheoutsideoftheflange,andthecenterofairductandthesurfaceofflangeshallkeepverticalmeasuredbythesetsquare,dimensionofthefoldedselvedgeis6-9mm.Ifthedimensionofflangeissmalltaketheupperlimit,ifitisbigtakethelowerlimitvalue,donotblocktheboltholestoaffecttheinstallationofairduct,theoverlapshallbesmooth,andthefouranglesshallbetight,thedistancebetweenrivetshallnotmorethan120mm.……千锤百炼，军工品质——永昇中央空调……PAGE4船用空调通风系统安装施工工艺规范(2)螺旋风管Spiralairduct螺旋风管是由宽135mm、厚0.5的镀锌铁皮，采用自动化机械将之卷成螺旋状，风管轻、厚度薄、强度高。该风管可增加风管强度与韧性，气密性极佳，风速强、磨擦损失小。内管可以采用冲孔板制成，中间保温材料采用厚12.5mm的岩棉，外层再以螺旋风管被覆在保温材料上。Thespiralairductismadebygalvanizedironsheet(width135mm,thicknessis0.5mm),theairducttheadvantageoflight,thicknessandhighstrength.Thiskindofairducthasstrongtoughness,fineairtihgtness,highspeedandlessfrictionloss.Theinnertubeismadebyorificeplateandmiddleoftheairductadopts12.5mmrockcottonforinsulating,andthencoatedspiralairducttotheinsulationmaterial.送风管的安装，先由工厂样台综合放样，确定其布风器的安装位置，然后根据放样结果由工厂绘制施工安装图。安装时，圆风管用砂轮切割，用其它工具切断时，切口要用砂轮磨平，不能把异物遗忘在管内。连接布风器的软管，最好外包20-30mm厚泡沫橡胶或陶瓷棉。Installationofblastpipe:atfirstitshallloftbymanufacturertodeterminetheinstallpositionofventilationterminalthenthemanufacturerwillmadetheinstallationdrawingaccordingtotheloftingresults.Wheninstalltheairduct,thecircleairductshallbecutbygrindingwheel,ifitiscutbyothertoolsthekerfshallbegroundbygrindingwheel,donotloosetheimpurityinthepipe.Thesoftpipeforconnectingtheventilationterminalshallbecoatedwith20-30mmfoamrubberorrefractorywool.(3)焊接风管Weldedairduct机械、机舱通用采用焊接风管，其焊接风管按照图纸的要求选用材料进行预制。Generallythemechanicalandengineroomadopttheweldedairductwhichshallbeprefabricatedaccordingtotherelativedrawing.根据各类风管的技术要求，选用相应厚度的板材，按照图纸的尺寸进行下料、刀角。Accordingtovarioustechnicalrequirementsofeachkindofairducttoselectthesuitableplate,thenlayoffaccordingtothedrawing.焊接前必须清除焊接端口处的污物、油迹、锈蚀，角用点焊或缝焊时，还需清除氧物……千锤百炼，军工品质——永昇中央空调……PAGE5船用空调通风系统安装施工工艺规范化。对口应保持最小的间隙。焊接过程中，根据板材的厚度掌握好焊丝直径和电流强度、电弧电压及焊接速度。手工点焊定位处的焊瘤应清除，焊接后，应将焊缝及其附近区域的电焊溶渣及残留的焊丝清除。Beforeweldingtheendsideoftheproductsshallbecleaned,suchasdirty,oiltrace,dustshallnotbefound,whenspotweldingorseamweldingisadoptedfortheangletheoxideshallbecleanedout.Thespaceofbuttjointshallkeepless.Duringweldingtheairductshallaccordingthethicknessofplatetoselectcorrectweldingwire,current,voltageandspeed.Afterweldingtheweldingseamandaroundshallbecleanedsuchasslagandremainweldingwireetc.焊接接头型式如下：Weldingjointasthefollowing:四、工件表面处理：Surfacetreatmentofworkpiece钢板件磷化处理Phosphatingofsteelplate1、磷化前的处理：Beforephosphating(1)工件的机械加工、成型、焊接和打孔，应在磷化前完成。Beforephosphatingthemachinework,forming,weldinganddrillingetc.shallbecompleted.……千锤百炼，军工品质——永昇中央空调……PAGE6船用空调通风系统安装施工工艺规范(2)各种工件其表面应无毛刺、锐边、焊渣、飞溅、金属屑、沾附特等影响处理质量的污物。Thesurfaceofeachworkingpiecetheburrs,sharpedge,weldingspatter,splash,gritandburetc.shallnotbefound.2、磷化池可同时完成除油、除锈、磷化、钝化四道工序，其主要性能指标如下：Phosphatisationtankcanfinishfourstepsi.e.oilremoval,rustremoval,phosphatingandpassivation,themainfunctionindexasthefollowing:外观Appearance透明液TransparentliquidPH＜2总酸度(点)Totalacidity(point)420-480游离酸度点Freeaciditypoint210-240比重Specificgravity1.09±0.02Fe含量Fecontent＜45g/L干燥时间Dryingtime2h-4h3、处理液处理：Treatmentoftreatingliquid(1)处理方法：采用浸渍处理，将工件浸入槽液中，工件较大时，可以翻动处理；Treatingmethod:Theworkpieceshallbeimmergedtotheliquid,iftheworkpieceislarghtitcanbeturned;(2)处理时间：由现场根据下列因素灵活掌握：Treatingtime:Thetreatingtimecanbedecidedaccordingtothefactatthescene.·工件表面状况